/* roulang page: index */
:root {
            --charcoal: #141414;
            --graphite: #232323;
            --paper: #F2EFE9;
            --warm-gray: #D9D2C6;
            --accent-orange: #FF4D00;
            --accent-lime: #C6FF00;
            --text-primary: #1a1a1a;
            --text-secondary: #4a4a4a;
            --text-muted: #7a7a7a;
            --text-on-dark: #f0ede8;
            --border-light: #e3ddd2;
            --border-warm: #d9d2c6;
            --shadow-sm: 0 2px 8px rgba(20,20,20,0.06);
            --shadow-md: 0 6px 16px rgba(20,20,20,0.1);
            --shadow-lg: 0 12px 32px rgba(20,20,20,0.14);
            --radius-sm: 2px;
            --radius-md: 4px;
            --radius-lg: 8px;
            --font-heading: 'Noto Sans SC', sans-serif;
            --font-western: 'Archivo Black', sans-serif;
            --font-mono: 'Space Mono', monospace;
            --font-body: 'Noto Sans SC', sans-serif;
            --transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            --container-max: 1200px;
            --section-padding: 72px;
            --section-gap: 60px;
            --nav-height-desktop: 136px;
            --nav-height-mobile: 120px;
        }

        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-body);
            background-color: var(--paper);
            color: var(--text-primary);
            line-height: 1.75;
            font-size: 16px;
            overflow-x: hidden;
            letter-spacing: 0.02em;
        }

        a {
            color: var(--graphite);
            text-decoration: none;
            transition: var(--transition);
        }

        a:hover {
            color: var(--accent-orange);
            text-decoration: none;
        }

        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        select:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--accent-orange);
            outline-offset: 2px;
            border-radius: var(--radius-sm);
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        .container-custom {
            max-width: var(--container-max);
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        @media (max-width: 576px) {
            .container-custom {
                padding-left: 16px;
                padding-right: 16px;
            }
        }

        /* ===== 顶部导航 ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1050;
            background-color: rgba(242, 239, 233, 0.96);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-light);
            transition: var(--transition);
        }

        .site-header.scrolled {
            box-shadow: 0 4px 16px rgba(20, 20, 20, 0.08);
            background-color: rgba(242, 239, 233, 0.99);
        }

        .brand-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 68px;
            gap: 16px;
        }

        .brand-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-family: var(--font-heading);
            font-weight: 900;
            font-size: 24px;
            color: var(--charcoal);
            letter-spacing: 0.04em;
            white-space: nowrap;
            flex-shrink: 0;
        }

        .brand-logo .logo-mark {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            background: var(--charcoal);
            color: var(--accent-lime);
            font-size: 18px;
            font-weight: 900;
            border-radius: var(--radius-sm);
            flex-shrink: 0;
        }

        .brand-logo:hover {
            color: var(--charcoal);
        }

        .brand-logo:hover .logo-mark {
            background: var(--accent-orange);
            color: #fff;
        }

        .brand-right {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }

        .search-form-desktop {
            display: flex;
            align-items: center;
            background: #fff;
            border: 1px solid var(--border-warm);
            border-radius: 999px;
            padding: 0 0 0 16px;
            height: 40px;
            transition: var(--transition);
            min-width: 240px;
        }

        .search-form-desktop:focus-within {
            border-color: var(--accent-orange);
            box-shadow: 0 0 0 3px rgba(255, 77, 0, 0.12);
        }

        .search-form-desktop input {
            border: none;
            outline: none;
            background: transparent;
            padding: 8px 8px 8px 4px;
            font-size: 14px;
            color: var(--text-primary);
            width: 100%;
            font-family: var(--font-body);
        }

        .search-form-desktop input::placeholder {
            color: var(--text-muted);
            font-size: 13px;
        }

        .search-form-desktop .search-btn {
            background: none;
            border: none;
            padding: 0 14px;
            color: var(--text-muted);
            cursor: pointer;
            transition: var(--transition);
            height: 100%;
            display: flex;
            align-items: center;
            font-size: 14px;
            border-radius: 0 999px 999px 0;
        }

        .search-form-desktop .search-btn:hover {
            color: var(--accent-orange);
        }

        .btn-brand {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--accent-orange);
            color: #fff;
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 14px;
            padding: 10px 20px;
            border: none;
            border-radius: var(--radius-sm);
            cursor: pointer;
            transition: var(--transition);
            white-space: nowrap;
            letter-spacing: 0.03em;
        }

        .btn-brand:hover {
            background: var(--charcoal);
            color: var(--accent-lime);
            box-shadow: var(--shadow-md);
            transform: translateY(-1px);
        }

        .btn-brand:active {
            transform: translateY(0);
            box-shadow: var(--shadow-sm);
        }

        .btn-brand .arrow {
            transition: transform 0.3s;
            font-size: 13px;
        }

        .btn-brand:hover .arrow {
            transform: translateX(4px);
        }

        .btn-outline-brand {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: transparent;
            color: var(--charcoal);
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 14px;
            padding: 10px 20px;
            border: 1.5px solid var(--charcoal);
            border-radius: var(--radius-sm);
            cursor: pointer;
            transition: var(--transition);
            white-space: nowrap;
            letter-spacing: 0.03em;
        }

        .btn-outline-brand:hover {
            background: var(--charcoal);
            color: #fff;
            border-color: var(--charcoal);
            box-shadow: var(--shadow-sm);
            transform: translateY(-1px);
        }

        .channel-row {
            display: flex;
            align-items: center;
            height: 54px;
            gap: 0;
            overflow-x: auto;
            overflow-y: hidden;
            scrollbar-width: none;
            -ms-overflow-style: none;
            border-top: 1px solid rgba(217, 210, 198, 0.6);
            white-space: nowrap;
            -webkit-overflow-scrolling: touch;
        }

        .channel-row::-webkit-scrollbar {
            display: none;
        }

        .channel-tabs {
            display: flex;
            gap: 4px;
            align-items: center;
            height: 100%;
            flex-shrink: 0;
            padding: 0 0;
        }

        .channel-tab {
            display: inline-flex;
            align-items: center;
            padding: 8px 18px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: 999px;
            transition: var(--transition);
            cursor: pointer;
            letter-spacing: 0.02em;
            border: none;
            background: transparent;
            font-family: var(--font-body);
            position: relative;
            white-space: nowrap;
            flex-shrink: 0;
        }

        .channel-tab:hover {
            color: var(--accent-orange);
            background: rgba(255, 77, 0, 0.06);
        }

        .channel-tab.active {
            background: var(--charcoal);
            color: #fff;
            font-weight: 700;
        }

        .channel-tab.active::after {
            display: none;
        }

        .channel-tab .tab-dot {
            display: none;
        }

        .channel-tab.active .tab-dot {
            display: inline-block;
            width: 5px;
            height: 5px;
            background: var(--accent-lime);
            border-radius: 50%;
            margin-left: 6px;
        }

        @media (max-width: 768px) {
            .brand-row {
                height: 56px;
                gap: 8px;
            }
            .brand-logo {
                font-size: 20px;
                gap: 6px;
            }
            .brand-logo .logo-mark {
                width: 30px;
                height: 30px;
                font-size: 15px;
            }
            .search-form-desktop {
                min-width: 140px;
                height: 34px;
                padding-left: 10px;
            }
            .search-form-desktop input {
                font-size: 12px;
                padding: 6px 4px;
            }
            .search-form-desktop .search-btn {
                padding: 0 10px;
                font-size: 12px;
            }
            .btn-brand {
                font-size: 12px;
                padding: 7px 14px;
                gap: 4px;
            }
            .btn-outline-brand {
                font-size: 12px;
                padding: 7px 14px;
                gap: 4px;
            }
            .channel-row {
                height: 48px;
            }
            .channel-tab {
                padding: 6px 12px;
                font-size: 12px;
            }
        }

        @media (max-width: 576px) {
            .brand-logo {
                font-size: 18px;
            }
            .brand-right .search-form-desktop {
                display: none;
            }
            .btn-brand {
                padding: 6px 12px;
                font-size: 11px;
            }
            .btn-outline-brand {
                padding: 6px 12px;
                font-size: 11px;
            }
            .channel-row {
                height: 44px;
            }
            .channel-tab {
                padding: 5px 10px;
                font-size: 11px;
            }
        }

        /* ===== Hero ===== */
        .hero-section {
            position: relative;
            background: var(--charcoal);
            min-height: 520px;
            display: flex;
            align-items: stretch;
            overflow: hidden;
            border-bottom: 1px solid var(--charcoal);
        }

        .hero-bg-image {
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.35;
            z-index: 1;
        }

        .hero-bg-image::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(100deg, rgba(20, 20, 20, 0.85) 30%, rgba(20, 20, 20, 0.55) 70%, rgba(20, 20, 20, 0.35) 100%);
        }

        .hero-content {
            position: relative;
            z-index: 2;
            display: flex;
            flex-direction: column;
            justify-content: center;
            padding: 64px 0 64px;
            min-height: 100%;
            width: 100%;
        }

        .hero-inner {
            display: grid;
            grid-template-columns: 1fr 0.9fr;
            gap: 48px;
            align-items: center;
        }

        .hero-text-area {
            color: #fff;
        }

        .hero-label {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 16px;
            flex-wrap: wrap;
        }

        .hero-label .section-number {
            font-family: var(--font-mono);
            font-size: 13px;
            font-weight: 700;
            color: var(--accent-lime);
            letter-spacing: 0.08em;
            text-transform: uppercase;
        }

        .hero-label .scene-tag {
            font-size: 12px;
            color: #d4cfc6;
            background: rgba(255, 255, 255, 0.08);
            padding: 4px 12px;
            border-radius: 999px;
            letter-spacing: 0.04em;
            border: 1px solid rgba(255, 255, 255, 0.12);
        }

        .hero-label .update-status {
            font-size: 12px;
            color: #a8a29a;
            font-family: var(--font-mono);
            letter-spacing: 0.04em;
        }

        .hero-title {
            font-family: var(--font-heading);
            font-weight: 900;
            font-size: 48px;
            line-height: 1.25;
            color: #fff;
            margin-bottom: 18px;
            letter-spacing: 0.02em;
        }

        .hero-title .highlight {
            color: var(--accent-orange);
            position: relative;
            display: inline-block;
        }

        .hero-title .highlight::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 0;
            right: 0;
            height: 4px;
            background: var(--accent-lime);
            border-radius: 2px;
            opacity: 0.7;
        }

        .hero-desc {
            font-size: 16px;
            line-height: 1.8;
            color: #c9c4ba;
            margin-bottom: 28px;
            max-width: 520px;
        }

        .hero-actions {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }

        .btn-hero-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--accent-orange);
            color: #fff;
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 15px;
            padding: 14px 28px;
            border: none;
            border-radius: var(--radius-sm);
            cursor: pointer;
            transition: var(--transition);
            letter-spacing: 0.03em;
            white-space: nowrap;
        }

        .btn-hero-primary:hover {
            background: var(--accent-lime);
            color: var(--charcoal);
            box-shadow: var(--shadow-lg);
            transform: translateY(-2px);
        }

        .btn-hero-primary .arrow {
            transition: transform 0.3s;
        }

        .btn-hero-primary:hover .arrow {
            transform: translateX(4px);
        }

        .btn-hero-secondary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: transparent;
            color: #e0ddd6;
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 15px;
            padding: 14px 24px;
            border: 1.5px solid rgba(255, 255, 255, 0.35);
            border-radius: var(--radius-sm);
            cursor: pointer;
            transition: var(--transition);
            letter-spacing: 0.03em;
            white-space: nowrap;
        }

        .btn-hero-secondary:hover {
            border-color: #fff;
            color: #fff;
            background: rgba(255, 255, 255, 0.06);
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }

        .hero-data-strip {
            display: flex;
            gap: 24px;
            flex-wrap: wrap;
            margin-top: 20px;
        }

        .hero-data-item {
            display: flex;
            flex-direction: column;
            gap: 2px;
        }

        .hero-data-item .number {
            font-family: var(--font-mono);
            font-size: 22px;
            font-weight: 700;
            color: var(--accent-lime);
            line-height: 1.3;
        }

        .hero-data-item .label {
            font-size: 12px;
            color: #9e988e;
            letter-spacing: 0.04em;
        }

        .hero-visual-panel {
            position: relative;
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid rgba(255, 255, 255, 0.12);
            aspect-ratio: 4 / 5;
            background: var(--graphite);
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: var(--shadow-lg);
        }

        .hero-visual-panel img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            opacity: 0.85;
            transition: var(--transition);
        }

        .hero-visual-panel:hover img {
            opacity: 1;
            transform: scale(1.02);
        }

        .hero-visual-panel .panel-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(0deg, rgba(20, 20, 20, 0.7) 0%, rgba(20, 20, 20, 0.1) 50%, rgba(20, 20, 20, 0.2) 100%);
            display: flex;
            flex-direction: column;
            justify-content: flex-end;
            padding: 20px;
        }

        .hero-visual-panel .panel-overlay .panel-tag {
            font-family: var(--font-mono);
            font-size: 11px;
            color: var(--accent-lime);
            letter-spacing: 0.06em;
            margin-bottom: 6px;
            text-transform: uppercase;
        }

        .hero-visual-panel .panel-overlay .panel-title {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 18px;
            color: #fff;
            margin-bottom: 4px;
        }

        .hero-visual-panel .panel-overlay .panel-meta {
            font-size: 12px;
            color: #c5c0b6;
            font-family: var(--font-mono);
            letter-spacing: 0.03em;
        }

        @media (max-width: 992px) {
            .hero-inner {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .hero-title {
                font-size: 36px;
            }
            .hero-visual-panel {
                aspect-ratio: 16 / 9;
                max-height: 280px;
            }
            .hero-section {
                min-height: auto;
            }
            .hero-content {
                padding: 40px 0 48px;
            }
        }

        @media (max-width: 576px) {
            .hero-title {
                font-size: 28px;
            }
            .hero-desc {
                font-size: 14px;
            }
            .hero-actions {
                flex-direction: column;
                gap: 10px;
            }
            .btn-hero-primary,
            .btn-hero-secondary {
                width: 100%;
                justify-content: center;
                padding: 12px 20px;
                font-size: 14px;
            }
            .hero-data-strip {
                gap: 16px;
            }
            .hero-data-item .number {
                font-size: 18px;
            }
        }

        /* ===== 共用板块样式 ===== */
        .section {
            padding: var(--section-padding) 0;
            position: relative;
        }

        .section + .section {
            border-top: 1px solid var(--border-light);
        }

        .section-dark {
            background: var(--charcoal);
            color: var(--text-on-dark);
            border-top: none;
        }

        .section-warm {
            background: #eeebe4;
        }

        .section-label {
            font-family: var(--font-mono);
            font-size: 13px;
            font-weight: 700;
            letter-spacing: 0.1em;
            text-transform: uppercase;
            color: var(--accent-orange);
            margin-bottom: 10px;
            display: block;
        }

        .section-title {
            font-family: var(--font-heading);
            font-weight: 900;
            font-size: 32px;
            line-height: 1.35;
            color: var(--charcoal);
            margin-bottom: 16px;
            letter-spacing: 0.02em;
        }

        .section-dark .section-title {
            color: #fff;
        }

        .section-desc {
            font-size: 15px;
            line-height: 1.8;
            color: var(--text-secondary);
            margin-bottom: 32px;
            max-width: 680px;
        }

        .section-dark .section-desc {
            color: #b8b3aa;
        }

        .divider {
            width: 48px;
            height: 3px;
            background: var(--accent-orange);
            margin-bottom: 20px;
            border-radius: var(--radius-sm);
        }

        .divider.lime {
            background: var(--accent-lime);
        }

        @media (max-width: 768px) {
            .section-title {
                font-size: 24px;
            }
            .section {
                padding: 48px 0;
            }
            .section-desc {
                font-size: 14px;
            }
        }

        /* ===== 痛点观察 ===== */
        .pain-editorial {
            display: grid;
            grid-template-columns: 0.85fr 1.15fr;
            gap: 48px;
            align-items: start;
        }

        .pain-number-block {
            position: relative;
        }

        .pain-number-block .big-number {
            font-family: var(--font-western);
            font-size: 72px;
            font-weight: 900;
            color: var(--charcoal);
            line-height: 1;
            letter-spacing: -0.04em;
        }

        .pain-number-block .big-number-sub {
            font-size: 14px;
            color: var(--text-muted);
            margin-top: 8px;
            font-family: var(--font-mono);
            letter-spacing: 0.06em;
        }

        .pain-number-block .pain-img-wrap {
            margin-top: 24px;
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--border-warm);
            box-shadow: var(--shadow-sm);
            aspect-ratio: 16 / 10;
            background: var(--warm-gray);
        }

        .pain-number-block .pain-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition);
        }

        .pain-number-block .pain-img-wrap:hover img {
            transform: scale(1.02);
        }

        .pain-text-block {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .pain-text-block .pain-paragraph {
            font-size: 16px;
            line-height: 1.85;
            color: var(--text-secondary);
        }

        .pain-text-block .pain-paragraph strong {
            color: var(--charcoal);
            font-weight: 700;
        }

        .pain-side-note {
            font-family: var(--font-mono);
            font-size: 12px;
            color: var(--text-muted);
            padding: 10px 14px;
            border-left: 3px solid var(--accent-orange);
            background: rgba(255, 77, 0, 0.04);
            letter-spacing: 0.03em;
            line-height: 1.6;
        }

        @media (max-width: 768px) {
            .pain-editorial {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .pain-number-block .big-number {
                font-size: 48px;
            }
        }

        /* ===== 解决方案 ===== */
        .solution-steps {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 0;
            margin-top: 8px;
        }

        .solution-step {
            padding: 32px 28px;
            border-left: 1px solid var(--border-warm);
            position: relative;
            transition: var(--transition);
            min-height: 220px;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .solution-step:first-child {
            border-left: none;
        }

        .solution-step::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: transparent;
            transition: var(--transition);
        }

        .solution-step:hover {
            background: #fff;
            box-shadow: var(--shadow-md);
            border-radius: var(--radius-sm);
            border-left-color: transparent;
        }

        .solution-step:hover::before {
            background: var(--accent-orange);
        }

        .solution-step .step-number {
            font-family: var(--font-mono);
            font-size: 13px;
            font-weight: 700;
            color: var(--accent-orange);
            letter-spacing: 0.08em;
            text-transform: uppercase;
        }

        .solution-step .step-title {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 18px;
            color: var(--charcoal);
            line-height: 1.4;
        }

        .solution-step .step-desc-text {
            font-size: 14px;
            line-height: 1.75;
            color: var(--text-secondary);
        }

        .solution-step .step-tag {
            margin-top: auto;
            font-size: 11px;
            color: var(--text-muted);
            font-family: var(--font-mono);
            letter-spacing: 0.05em;
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        .solution-step .step-tag .icon-dot {
            width: 6px;
            height: 6px;
            background: var(--accent-lime);
            border-radius: 50%;
            display: inline-block;
        }

        @media (max-width: 992px) {
            .solution-steps {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .solution-step {
                border-left: 1px solid var(--border-warm);
                border-radius: var(--radius-sm);
                background: rgba(255, 255, 255, 0.5);
                min-height: auto;
            }
            .solution-step:first-child {
                border-left: 1px solid var(--border-warm);
            }
        }

        @media (max-width: 576px) {
            .solution-steps {
                grid-template-columns: 1fr;
            }
            .solution-step {
                min-height: auto;
                padding: 24px 20px;
            }
        }

        /* ===== 成果数据区 ===== */
        .stats-band {
            background: var(--graphite);
            padding: 48px 0;
            border-top: 1px solid #333;
            border-bottom: 1px solid #333;
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 0;
            align-items: stretch;
        }

        .stat-item {
            text-align: center;
            padding: 24px 16px;
            border-right: 1px solid rgba(255, 255, 255, 0.08);
            transition: var(--transition);
        }

        .stat-item:last-child {
            border-right: none;
        }

        .stat-item:hover {
            background: rgba(255, 255, 255, 0.04);
        }

        .stat-item .stat-number {
            font-family: var(--font-mono);
            font-size: 42px;
            font-weight: 700;
            color: var(--accent-lime);
            line-height: 1.2;
            letter-spacing: -0.02em;
        }

        .stat-item .stat-number .unit {
            font-size: 20px;
            color: #8a857c;
        }

        .stat-item .stat-label {
            font-size: 13px;
            color: #b8b3aa;
            margin-top: 6px;
            letter-spacing: 0.05em;
        }

        .stat-item .stat-sub {
            font-size: 11px;
            color: #6d685f;
            margin-top: 4px;
            font-family: var(--font-mono);
            letter-spacing: 0.03em;
        }

        @media (max-width: 992px) {
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 1px;
                background: rgba(255, 255, 255, 0.06);
            }
            .stat-item {
                border-right: none;
                background: var(--graphite);
                padding: 20px 12px;
            }
            .stat-item .stat-number {
                font-size: 32px;
            }
        }

        @media (max-width: 576px) {
            .stat-item .stat-number {
                font-size: 24px;
            }
            .stat-item .stat-number .unit {
                font-size: 14px;
            }
            .stat-item .stat-label {
                font-size: 11px;
            }
        }

        /* ===== 客户证言 ===== */
        .testimonial-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            margin-top: 8px;
        }

        .testimonial-card {
            background: #fff;
            border: 1px solid var(--border-warm);
            border-radius: var(--radius-sm);
            padding: 28px 24px;
            transition: var(--transition);
            position: relative;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .testimonial-card::before {
            content: '"';
            font-family: var(--font-western);
            font-size: 64px;
            color: var(--warm-gray);
            line-height: 1;
            position: absolute;
            top: 16px;
            left: 16px;
            opacity: 0.6;
            pointer-events: none;
        }

        .testimonial-card:hover {
            border-color: var(--accent-orange);
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }

        .testimonial-quote {
            font-size: 15px;
            line-height: 1.8;
            color: var(--text-primary);
            font-weight: 500;
            position: relative;
            z-index: 1;
            padding-top: 20px;
        }

        .testimonial-source {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-top: auto;
            padding-top: 12px;
            border-top: 1px solid var(--border-light);
        }

        .testimonial-source .avatar {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: var(--charcoal);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-lime);
            font-weight: 700;
            font-size: 14px;
            flex-shrink: 0;
            font-family: var(--font-heading);
        }

        .testimonial-source .name {
            font-weight: 700;
            font-size: 14px;
            color: var(--charcoal);
        }

        .testimonial-source .meta-info {
            font-size: 12px;
            color: var(--text-muted);
            font-family: var(--font-mono);
            letter-spacing: 0.02em;
        }

        .testimonial-source .stars {
            margin-left: auto;
            font-size: 12px;
            color: var(--accent-orange);
            letter-spacing: 2px;
        }

        @media (max-width: 992px) {
            .testimonial-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 576px) {
            .testimonial-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .testimonial-card {
                padding: 20px 16px;
            }
        }

        /* ===== 资讯动态 ===== */
        .news-layout {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 32px;
        }

        .news-main-list {
            display: flex;
            flex-direction: column;
            gap: 0;
            border: 1px solid var(--border-warm);
            border-radius: var(--radius-md);
            overflow: hidden;
            background: #fff;
        }

        .news-list-item {
            padding: 20px 24px;
            border-bottom: 1px solid var(--border-light);
            transition: var(--transition);
            display: flex;
            flex-direction: column;
            gap: 6px;
            cursor: pointer;
        }

        .news-list-item:last-child {
            border-bottom: none;
        }

        .news-list-item:hover {
            background: rgba(255, 77, 0, 0.03);
            padding-left: 28px;
        }

        .news-list-item .news-meta {
            display: flex;
            gap: 12px;
            align-items: center;
            flex-wrap: wrap;
        }

        .news-list-item .news-date {
            font-family: var(--font-mono);
            font-size: 12px;
            color: var(--text-muted);
            letter-spacing: 0.04em;
        }

        .news-list-item .news-tag {
            font-size: 11px;
            padding: 3px 10px;
            border-radius: 999px;
            background: rgba(255, 77, 0, 0.08);
            color: var(--accent-orange);
            font-weight: 700;
            letter-spacing: 0.03em;
        }

        .news-list-item .news-title {
            font-size: 17px;
            font-weight: 700;
            color: var(--charcoal);
            line-height: 1.5;
            transition: var(--transition);
        }

        .news-list-item:hover .news-title {
            color: var(--accent-orange);
        }

        .news-list-item .news-excerpt {
            font-size: 13px;
            line-height: 1.7;
            color: var(--text-secondary);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .news-side {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .news-side-card {
            background: #fff;
            border: 1px solid var(--border-warm);
            border-radius: var(--radius-md);
            padding: 20px;
            transition: var(--transition);
        }

        .news-side-card:hover {
            border-color: var(--accent-orange);
            box-shadow: var(--shadow-sm);
        }

        .news-side-card .side-label {
            font-family: var(--font-mono);
            font-size: 11px;
            font-weight: 700;
            letter-spacing: 0.08em;
            color: var(--accent-orange);
            text-transform: uppercase;
            margin-bottom: 10px;
            display: block;
        }

        .news-side-card .side-title {
            font-size: 15px;
            font-weight: 700;
            color: var(--charcoal);
            margin-bottom: 6px;
            line-height: 1.5;
        }

        .news-side-card .side-desc {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        .news-side-card .side-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            font-weight: 700;
            color: var(--accent-orange);
            margin-top: 10px;
            cursor: pointer;
            transition: var(--transition);
        }

        .news-side-card .side-link:hover {
            gap: 10px;
        }

        @media (max-width: 768px) {
            .news-layout {
                grid-template-columns: 1fr;
            }
        }

        /* ===== 品牌介绍 ===== */
        .brand-intro {
            display: grid;
            grid-template-columns: 0.7fr 1.3fr;
            gap: 40px;
            align-items: center;
        }

        .brand-intro-visual {
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--border-warm);
            box-shadow: var(--shadow-sm);
            aspect-ratio: 4 / 3;
            background: var(--warm-gray);
        }

        .brand-intro-visual img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition);
        }

        .brand-intro-visual:hover img {
            transform: scale(1.02);
        }

        .brand-intro-text p {
            font-size: 15px;
            line-height: 1.85;
            color: var(--text-secondary);
            margin-bottom: 14px;
        }

        .brand-intro-text p:last-child {
            margin-bottom: 0;
        }

        .brand-intro-text strong {
            color: var(--charcoal);
            font-weight: 700;
        }

        @media (max-width: 768px) {
            .brand-intro {
                grid-template-columns: 1fr;
                gap: 24px;
            }
        }

        /* ===== 合作伙伴 ===== */
        .partner-tags {
            display: grid;
            grid-template-columns: repeat(6, 1fr);
            gap: 16px;
            margin-top: 8px;
        }

        .partner-card {
            background: #fff;
            border: 1px solid var(--border-warm);
            border-radius: var(--radius-sm);
            padding: 20px 16px;
            text-align: center;
            transition: var(--transition);
            cursor: default;
        }

        .partner-card:hover {
            border-color: var(--accent-orange);
            box-shadow: var(--shadow-sm);
            transform: translateY(-2px);
        }

        .partner-card .partner-icon {
            font-size: 28px;
            color: var(--accent-orange);
            margin-bottom: 10px;
            display: block;
        }

        .partner-card .partner-name {
            font-weight: 700;
            font-size: 14px;
            color: var(--charcoal);
            margin-bottom: 4px;
        }

        .partner-card .partner-desc {
            font-size: 12px;
            color: var(--text-muted);
            line-height: 1.5;
        }

        @media (max-width: 992px) {
            .partner-tags {
                grid-template-columns: repeat(3, 1fr);
            }
        }

        @media (max-width: 576px) {
            .partner-tags {
                grid-template-columns: repeat(2, 1fr);
                gap: 10px;
            }
            .partner-card {
                padding: 14px 10px;
            }
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            border: 1px solid var(--border-warm);
            border-radius: var(--radius-sm);
            margin-bottom: 10px;
            background: #fff;
            overflow: hidden;
            transition: var(--transition);
        }

        .faq-item:hover {
            border-color: var(--accent-orange);
        }

        .faq-item .accordion-button {
            background: #fff;
            color: var(--charcoal);
            font-weight: 700;
            font-size: 16px;
            padding: 18px 22px;
            border: none;
            box-shadow: none;
            transition: var(--transition);
            font-family: var(--font-heading);
            letter-spacing: 0.02em;
            display: flex;
            align-items: center;
            gap: 12px;
            width: 100%;
            text-align: left;
            cursor: pointer;
            border-radius: var(--radius-sm);
        }

        .faq-item .accordion-button:focus {
            box-shadow: none;
            outline: 2px solid var(--accent-orange);
            outline-offset: -2px;
        }

        .faq-item .accordion-button:not(.collapsed) {
            color: var(--accent-orange);
            background: #fff;
            border-bottom: 1px solid var(--border-light);
            border-radius: var(--radius-sm) var(--radius-sm) 0 0;
        }

        .faq-item .accordion-button::after {
            content: '+';
            background: none;
            font-size: 24px;
            font-weight: 400;
            color: var(--text-muted);
            width: auto;
            height: auto;
            transition: var(--transition);
            margin-left: auto;
            flex-shrink: 0;
        }

        .faq-item .accordion-button:not(.collapsed)::after {
            content: '−';
            color: var(--accent-orange);
            transform: none;
        }

        .faq-item .accordion-body {
            padding: 18px 22px 20px;
            font-size: 14px;
            line-height: 1.8;
            color: var(--text-secondary);
            border-left: 3px solid var(--accent-orange);
            margin-left: 22px;
        }

        .faq-question-number {
            font-family: var(--font-mono);
            font-size: 13px;
            font-weight: 700;
            color: var(--accent-orange);
            letter-spacing: 0.05em;
            flex-shrink: 0;
        }

        @media (max-width: 576px) {
            .faq-item .accordion-button {
                font-size: 14px;
                padding: 14px 16px;
                gap: 8px;
            }
            .faq-item .accordion-body {
                padding: 14px 16px 16px;
                margin-left: 16px;
                font-size: 13px;
            }
        }

        /* ===== CTA ===== */
        .cta-section {
            background: var(--charcoal);
            padding: 64px 0;
            border-top: 4px solid var(--accent-orange);
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -20%;
            width: 500px;
            height: 500px;
            border-radius: 50%;
            background: rgba(198, 255, 0, 0.04);
            pointer-events: none;
        }

        .cta-section::after {
            content: '';
            position: absolute;
            bottom: -30%;
            left: -10%;
            width: 400px;
            height: 400px;
            border-radius: 50%;
            background: rgba(255, 77, 0, 0.05);
            pointer-events: none;
        }

        .cta-content {
            position: relative;
            z-index: 1;
            text-align: center;
            max-width: 620px;
            margin: 0 auto;
        }

        .cta-content .cta-label {
            font-family: var(--font-mono);
            font-size: 13px;
            font-weight: 700;
            letter-spacing: 0.1em;
            color: var(--accent-lime);
            text-transform: uppercase;
            margin-bottom: 12px;
            display: block;
        }

        .cta-content .cta-title {
            font-family: var(--font-heading);
            font-size: 34px;
            font-weight: 900;
            color: #fff;
            letter-spacing: 0.02em;
            margin-bottom: 14px;
            line-height: 1.35;
        }

        .cta-content .cta-desc {
            font-size: 15px;
            color: #b8b3aa;
            line-height: 1.8;
            margin-bottom: 28px;
        }

        .btn-cta-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--accent-orange);
            color: #fff;
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 16px;
            padding: 16px 36px;
            border: none;
            border-radius: var(--radius-sm);
            cursor: pointer;
            transition: var(--transition);
            letter-spacing: 0.04em;
            white-space: nowrap;
        }

        .btn-cta-primary:hover {
            background: var(--accent-lime);
            color: var(--charcoal);
            box-shadow: var(--shadow-lg);
            transform: translateY(-2px);
        }

        .btn-cta-primary .arrow {
            transition: transform 0.3s;
        }

        .btn-cta-primary:hover .arrow {
            transform: translateX(5px);
        }

        .cta-search-form {
            display: flex;
            gap: 10px;
            max-width: 480px;
            margin: 20px auto 0;
            background: #fff;
            border-radius: 999px;
            padding: 6px 6px 6px 20px;
            align-items: center;
            box-shadow: var(--shadow-lg);
        }

        .cta-search-form input {
            border: none;
            outline: none;
            background: transparent;
            font-size: 14px;
            flex: 1;
            color: var(--text-primary);
            font-family: var(--font-body);
            padding: 8px 0;
        }

        .cta-search-form input::placeholder {
            color: var(--text-muted);
            font-size: 13px;
        }

        .cta-search-form .btn-search-submit {
            background: var(--charcoal);
            color: #fff;
            border: none;
            border-radius: 999px;
            padding: 10px 22px;
            font-weight: 700;
            font-size: 14px;
            cursor: pointer;
            transition: var(--transition);
            white-space: nowrap;
            font-family: var(--font-heading);
            letter-spacing: 0.03em;
        }

        .cta-search-form .btn-search-submit:hover {
            background: var(--accent-orange);
        }

        @media (max-width: 576px) {
            .cta-section {
                padding: 48px 0;
            }
            .cta-content .cta-title {
                font-size: 24px;
            }
            .btn-cta-primary {
                font-size: 14px;
                padding: 12px 24px;
                width: 100%;
                justify-content: center;
            }
            .cta-search-form {
                flex-direction: column;
                border-radius: var(--radius-md);
                padding: 12px;
            }
            .cta-search-form .btn-search-submit {
                width: 100%;
                border-radius: var(--radius-sm);
                padding: 10px;
            }
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--charcoal);
            color: #b8b3aa;
            padding: 48px 0 28px;
            border-top: 1px solid #333;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.3fr 0.8fr 0.8fr 0.8fr;
            gap: 36px;
            margin-bottom: 36px;
        }

        .footer-brand {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .footer-brand .footer-logo {
            font-family: var(--font-heading);
            font-weight: 900;
            font-size: 22px;
            color: #fff;
            letter-spacing: 0.04em;
        }

        .footer-brand .footer-logo .logo-mark {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 30px;
            height: 30px;
            background: var(--accent-orange);
            color: #fff;
            font-size: 15px;
            font-weight: 900;
            border-radius: var(--radius-sm);
            margin-right: 8px;
        }

        .footer-brand p {
            font-size: 13px;
            line-height: 1.7;
            color: #8a857c;
            max-width: 280px;
        }

        .footer-col h4 {
            font-size: 14px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
            letter-spacing: 0.06em;
        }

        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .footer-col ul li {
            margin-bottom: 8px;
        }

        .footer-col ul li a {
            color: #a8a29a;
            font-size: 13px;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .footer-col ul li a:hover {
            color: var(--accent-lime);
            padding-left: 4px;
        }

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 16px;
            padding-top: 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            font-size: 12px;
            color: #6d685f;
        }

        .footer-bottom .footer-links {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }

        .footer-bottom .footer-links a {
            color: #8a857c;
            font-size: 12px;
            transition: var(--transition);
        }

        .footer-bottom .footer-links a:hover {
            color: var(--accent-lime);
        }

        .footer-back-top {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: #a8a29a;
            font-size: 12px;
            cursor: pointer;
            transition: var(--transition);
            border: 1px solid rgba(255, 255, 255, 0.15);
            padding: 6px 14px;
            border-radius: 999px;
            background: transparent;
        }

        .footer-back-top:hover {
            color: var(--accent-lime);
            border-color: var(--accent-lime);
        }

        @media (max-width: 992px) {
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 576px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                align-items: center;
            }
            .footer-bottom .footer-links {
                justify-content: center;
            }
        }

/* roulang page: category2 */
:root {
            --charcoal: #141414;
            --graphite: #232323;
            --paper: #F2EFE9;
            --warm-gray: #D9D2C6;
            --accent-orange: #FF4D00;
            --accent-lime: #C6FF00;
            --text-primary: #1a1a1a;
            --text-secondary: #4a4a4a;
            --text-muted: #7a7a7a;
            --text-on-dark: #f0ede8;
            --border-light: #e3ddd2;
            --border-warm: #d9d2c6;
            --shadow-sm: 0 2px 8px rgba(20, 20, 20, 0.06);
            --shadow-md: 0 6px 16px rgba(20, 20, 20, 0.1);
            --shadow-lg: 0 12px 32px rgba(20, 20, 20, 0.14);
            --radius-sm: 2px;
            --radius-md: 4px;
            --radius-lg: 8px;
            --font-heading: 'Noto Sans SC', sans-serif;
            --font-western: 'Archivo Black', sans-serif;
            --font-mono: 'Space Mono', monospace;
            --font-body: 'Noto Sans SC', sans-serif;
            --transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            --container-max: 1200px;
            --section-padding: 72px;
            --section-gap: 60px;
            --nav-height-desktop: 136px;
            --nav-height-mobile: 120px;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-body);
            background-color: var(--paper);
            color: var(--text-primary);
            line-height: 1.75;
            font-size: 16px;
            overflow-x: hidden;
            letter-spacing: 0.02em;
        }

        a {
            color: var(--graphite);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--accent-orange);
            text-decoration: none;
        }
        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        select:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--accent-orange);
            outline-offset: 2px;
            border-radius: var(--radius-sm);
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        .container-custom {
            max-width: var(--container-max);
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        /* ===== 导航 ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1050;
            background-color: rgba(242, 239, 233, 0.96);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-light);
            transition: var(--transition);
        }
        .site-header.scrolled {
            box-shadow: 0 4px 16px rgba(20, 20, 20, 0.08);
            background-color: rgba(242, 239, 233, 0.99);
        }

        .brand-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 68px;
            gap: 16px;
        }
        .brand-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-family: var(--font-heading);
            font-weight: 900;
            font-size: 24px;
            color: var(--charcoal);
            letter-spacing: 0.04em;
            white-space: nowrap;
            flex-shrink: 0;
        }
        .brand-logo .logo-mark {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            background: var(--charcoal);
            color: var(--accent-lime);
            font-size: 18px;
            font-weight: 900;
            border-radius: var(--radius-sm);
            flex-shrink: 0;
        }
        .brand-logo:hover {
            color: var(--charcoal);
        }
        .brand-logo:hover .logo-mark {
            background: var(--accent-orange);
            color: #fff;
        }
        .brand-right {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }
        .search-form-desktop {
            display: flex;
            align-items: center;
            background: #fff;
            border: 1px solid var(--border-warm);
            border-radius: 999px;
            padding: 0 0 0 16px;
            height: 40px;
            transition: var(--transition);
            min-width: 240px;
        }
        .search-form-desktop:focus-within {
            border-color: var(--accent-orange);
            box-shadow: 0 0 0 3px rgba(255, 77, 0, 0.12);
        }
        .search-form-desktop input {
            border: none;
            outline: none;
            background: transparent;
            padding: 8px 8px 8px 4px;
            font-size: 14px;
            color: var(--text-primary);
            width: 100%;
            font-family: var(--font-body);
        }
        .search-form-desktop input::placeholder {
            color: var(--text-muted);
            font-size: 13px;
        }
        .search-form-desktop .search-btn {
            background: none;
            border: none;
            padding: 0 14px;
            color: var(--text-muted);
            cursor: pointer;
            transition: var(--transition);
            height: 100%;
            display: flex;
            align-items: center;
            font-size: 14px;
            border-radius: 0 999px 999px 0;
        }
        .search-form-desktop .search-btn:hover {
            color: var(--accent-orange);
        }
        .btn-brand {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--accent-orange);
            color: #fff;
            font-weight: 700;
            font-size: 14px;
            padding: 10px 20px;
            border-radius: var(--radius-sm);
            border: 1px solid var(--accent-orange);
            transition: var(--transition);
            white-space: nowrap;
            font-family: var(--font-heading);
        }
        .btn-brand:hover {
            background: var(--charcoal);
            border-color: var(--charcoal);
            color: var(--accent-lime);
        }
        .btn-brand .arrow {
            transition: var(--transition);
        }
        .btn-brand:hover .arrow {
            transform: translateX(4px);
        }

        .channel-row {
            border-top: 1px solid var(--border-light);
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: thin;
            scrollbar-color: var(--border-warm) transparent;
        }
        .channel-row::-webkit-scrollbar {
            height: 3px;
        }
        .channel-row::-webkit-scrollbar-thumb {
            background: var(--border-warm);
            border-radius: 10px;
        }
        .channel-tabs {
            display: flex;
            gap: 4px;
            padding: 8px 0;
            min-width: max-content;
        }
        .channel-tab {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 18px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: 999px;
            transition: var(--transition);
            white-space: nowrap;
            position: relative;
            font-family: var(--font-heading);
        }
        .channel-tab:hover {
            color: var(--accent-orange);
            background: rgba(255, 77, 0, 0.06);
        }
        .channel-tab.active {
            background: var(--charcoal);
            color: #fff;
            font-weight: 700;
        }
        .channel-tab .tab-dot {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--accent-lime);
            display: inline-block;
        }
        .channel-tab.active .tab-dot {
            animation: pulse-dot 1.8s infinite;
        }
        @keyframes pulse-dot {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.3; }
        }

        /* ===== Hero ===== */
        .hero-section {
            padding: 56px 0 64px;
            position: relative;
            overflow: hidden;
        }
        .hero-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(90deg, var(--accent-orange) 0%, var(--accent-lime) 50%, var(--accent-orange) 100%);
        }
        .hero-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }
        .hero-text h1 {
            font-family: var(--font-heading);
            font-weight: 900;
            font-size: 42px;
            line-height: 1.25;
            color: var(--charcoal);
            margin-bottom: 20px;
        }
        .hero-text h1 .hl {
            color: var(--accent-orange);
            position: relative;
        }
        .hero-text h1 .hl::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 100%;
            height: 4px;
            background: var(--accent-lime);
            z-index: -1;
        }
        .hero-subtitle {
            font-size: 17px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 24px;
        }
        .hero-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-bottom: 28px;
        }
        .hero-meta .meta-item {
            font-family: var(--font-mono);
            font-size: 12px;
            padding: 6px 12px;
            background: #fff;
            border: 1px solid var(--border-warm);
            border-radius: 999px;
            color: var(--text-secondary);
        }
        .hero-meta .meta-item strong {
            color: var(--accent-orange);
            font-weight: 700;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            align-items: center;
        }
        .btn-hero-primary {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: var(--accent-orange);
            color: #fff;
            font-weight: 700;
            font-size: 16px;
            padding: 14px 32px;
            border-radius: var(--radius-sm);
            border: 1px solid var(--accent-orange);
            transition: var(--transition);
            font-family: var(--font-heading);
        }
        .btn-hero-primary:hover {
            background: var(--charcoal);
            border-color: var(--charcoal);
            color: var(--accent-lime);
        }
        .btn-hero-secondary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: transparent;
            color: var(--charcoal);
            font-weight: 600;
            font-size: 15px;
            padding: 14px 24px;
            border-radius: var(--radius-sm);
            border: 1px solid var(--border-warm);
            transition: var(--transition);
            font-family: var(--font-heading);
        }
        .btn-hero-secondary:hover {
            border-color: var(--accent-orange);
            color: var(--accent-orange);
            background: rgba(255, 77, 0, 0.04);
        }
        .hero-visual {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
            background: var(--graphite);
        }
        .hero-visual img {
            width: 100%;
            height: 420px;
            object-fit: cover;
            transition: var(--transition);
        }
        .hero-visual:hover img {
            transform: scale(1.02);
        }
        .hero-visual .visual-overlay {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            padding: 24px;
            background: linear-gradient(transparent, rgba(20, 20, 20, 0.85));
            color: #fff;
        }
        .hero-visual .visual-overlay .overlay-tag {
            font-family: var(--font-mono);
            font-size: 11px;
            color: var(--accent-lime);
            letter-spacing: 0.08em;
            text-transform: uppercase;
            display: block;
            margin-bottom: 6px;
        }
        .hero-visual .visual-overlay .overlay-title {
            font-size: 20px;
            font-weight: 700;
            color: #fff;
        }

        /* ===== 权益徽章区 ===== */
        .badge-benefits {
            margin-top: 36px;
            padding: 28px 0;
            border-top: 1px solid var(--border-light);
            border-bottom: 1px solid var(--border-light);
        }
        .benefit-badges {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            align-items: center;
        }
        .benefit-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 18px;
            background: #fff;
            border: 1px solid var(--border-warm);
            border-radius: var(--radius-sm);
            font-size: 14px;
            font-weight: 600;
            color: var(--text-primary);
            transition: var(--transition);
        }
        .benefit-badge:hover {
            border-color: var(--accent-orange);
            box-shadow: var(--shadow-sm);
            transform: translateY(-2px);
        }
        .benefit-badge i {
            color: var(--accent-orange);
            font-size: 16px;
        }

        /* ===== 资格说明 ===== */
        .qualification-banner {
            margin-top: 24px;
            background: #fff;
            border-left: 4px solid var(--accent-orange);
            padding: 20px 28px;
            border-radius: var(--radius-sm);
            box-shadow: var(--shadow-sm);
        }
        .qualification-banner p {
            margin-bottom: 0;
            color: var(--text-secondary);
            font-size: 15px;
            line-height: 1.8;
        }
        .qualification-banner strong {
            color: var(--charcoal);
        }

        /* ===== 排名表格 ===== */
        .ranking-section {
            padding: var(--section-padding) 0;
        }
        .section-heading {
            margin-bottom: 40px;
        }
        .section-heading .section-label {
            font-family: var(--font-mono);
            font-size: 12px;
            color: var(--accent-orange);
            letter-spacing: 0.1em;
            text-transform: uppercase;
            margin-bottom: 8px;
            display: block;
        }
        .section-heading h2 {
            font-family: var(--font-heading);
            font-weight: 900;
            font-size: 32px;
            color: var(--charcoal);
            margin-bottom: 12px;
        }
        .section-heading p {
            color: var(--text-secondary);
            font-size: 16px;
            max-width: 680px;
            line-height: 1.8;
        }
        .ranking-table-wrap {
            background: #fff;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
        }
        .ranking-table {
            margin-bottom: 0;
        }
        .ranking-table thead th {
            background: var(--charcoal);
            color: var(--text-on-dark);
            font-weight: 700;
            font-size: 13px;
            letter-spacing: 0.06em;
            padding: 16px 18px;
            border: none;
            font-family: var(--font-heading);
        }
        .ranking-table tbody td {
            padding: 16px 18px;
            border-bottom: 1px solid var(--border-light);
            font-size: 14px;
            color: var(--text-secondary);
            vertical-align: middle;
        }
        .ranking-table tbody tr:last-child td {
            border-bottom: none;
        }
        .ranking-table tbody tr:hover td {
            background: rgba(255, 77, 0, 0.03);
        }
        .rank-number {
            font-family: var(--font-mono);
            font-weight: 700;
            font-size: 18px;
            color: var(--charcoal);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: var(--radius-sm);
            background: var(--paper);
            border: 1px solid var(--border-warm);
        }
        .rank-number.top-1 {
            background: var(--accent-orange);
            color: #fff;
            border-color: var(--accent-orange);
        }
        .rank-number.top-2 {
            background: var(--graphite);
            color: var(--accent-lime);
            border-color: var(--graphite);
        }
        .rank-number.top-3 {
            background: var(--warm-gray);
            color: var(--charcoal);
            border-color: var(--warm-gray);
        }
        .rank-title {
            font-weight: 700;
            color: var(--charcoal);
            font-size: 15px;
        }
        .rank-desc {
            color: var(--text-muted);
            font-size: 13px;
            line-height: 1.6;
        }
        .rank-badge {
            display: inline-block;
            padding: 4px 12px;
            font-size: 11px;
            font-weight: 700;
            border-radius: 999px;
            background: rgba(255, 77, 0, 0.1);
            color: var(--accent-orange);
            font-family: var(--font-mono);
            letter-spacing: 0.04em;
        }
        .rank-badge.hot {
            background: rgba(198, 255, 0, 0.2);
            color: #5a7300;
        }

        /* ===== 指标卡 ===== */
        .metrics-strip {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
            margin-top: 32px;
        }
        .metric-item {
            background: var(--charcoal);
            padding: 24px;
            border-radius: var(--radius-sm);
            text-align: center;
            transition: var(--transition);
        }
        .metric-item:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }
        .metric-item .metric-value {
            font-family: var(--font-mono);
            font-size: 32px;
            font-weight: 700;
            color: var(--accent-lime);
            display: block;
            margin-bottom: 6px;
        }
        .metric-item .metric-label {
            font-size: 13px;
            color: var(--text-on-dark);
            opacity: 0.8;
            font-weight: 500;
        }

        /* ===== 专题内容 ===== */
        .insight-spotlight {
            padding: var(--section-padding) 0;
            background: #fff;
        }
        .spotlight-card {
            display: grid;
            grid-template-columns: 200px 1fr;
            gap: 24px;
            background: var(--paper);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: var(--transition);
            margin-bottom: 20px;
        }
        .spotlight-card:hover {
            border-color: var(--accent-orange);
            box-shadow: var(--shadow-md);
        }
        .spotlight-card img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            min-height: 160px;
        }
        .spotlight-card .card-body {
            padding: 20px 24px;
        }
        .spotlight-card .card-tag {
            font-family: var(--font-mono);
            font-size: 11px;
            color: var(--accent-orange);
            letter-spacing: 0.08em;
            text-transform: uppercase;
            display: block;
            margin-bottom: 6px;
        }
        .spotlight-card h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--charcoal);
            margin-bottom: 8px;
            font-family: var(--font-heading);
        }
        .spotlight-card p {
            font-size: 14px;
            color: var(--text-secondary);
            margin-bottom: 0;
            line-height: 1.7;
        }
        .spotlight-card .card-meta {
            display: flex;
            gap: 16px;
            margin-top: 10px;
            font-size: 12px;
            color: var(--text-muted);
            font-family: var(--font-mono);
        }

        /* ===== 流程 ===== */
        .process-section {
            padding: var(--section-padding) 0;
            background: var(--graphite);
            color: var(--text-on-dark);
        }
        .process-section .section-heading h2 {
            color: #fff;
        }
        .process-section .section-heading p {
            color: rgba(240, 237, 232, 0.75);
        }
        .process-steps {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .process-step {
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: var(--radius-sm);
            padding: 28px 24px;
            transition: var(--transition);
        }
        .process-step:hover {
            background: rgba(255, 255, 255, 0.08);
            border-color: var(--accent-orange);
            transform: translateY(-4px);
        }
        .process-step .step-num {
            font-family: var(--font-mono);
            font-size: 14px;
            color: var(--accent-lime);
            display: block;
            margin-bottom: 10px;
            font-weight: 700;
        }
        .process-step h3 {
            font-size: 17px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 8px;
            font-family: var(--font-heading);
        }
        .process-step p {
            font-size: 14px;
            color: rgba(240, 237, 232, 0.7);
            margin-bottom: 0;
            line-height: 1.7;
        }

        /* ===== FAQ ===== */
        .faq-section {
            padding: var(--section-padding) 0;
        }
        .faq-list .accordion-item {
            border: 1px solid var(--border-light);
            border-radius: var(--radius-sm);
            margin-bottom: 12px;
            background: #fff;
            overflow: hidden;
        }
        .faq-list .accordion-item .accordion-button {
            font-weight: 700;
            font-size: 15px;
            color: var(--charcoal);
            padding: 18px 24px;
            background: #fff;
            font-family: var(--font-heading);
            transition: var(--transition);
        }
        .faq-list .accordion-item .accordion-button:not(.collapsed) {
            color: var(--accent-orange);
            background: rgba(255, 77, 0, 0.04);
        }
        .faq-list .accordion-item .accordion-button:focus {
            box-shadow: none;
            outline: 2px solid var(--accent-orange);
            outline-offset: -2px;
        }
        .faq-list .accordion-item .accordion-button::after {
            filter: invert(30%);
        }
        .faq-list .accordion-body {
            padding: 0 24px 20px;
            font-size: 15px;
            color: var(--text-secondary);
            border-left: 4px solid var(--accent-orange);
            margin-left: 20px;
            margin-bottom: 16px;
            line-height: 1.8;
        }

        /* ===== CTA ===== */
        .cta-section {
            padding: 56px 0 72px;
            background: var(--charcoal);
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -20%;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(255, 77, 0, 0.15), transparent 70%);
            border-radius: 50%;
        }
        .cta-inner {
            position: relative;
            z-index: 2;
            text-align: center;
            max-width: 720px;
            margin: 0 auto;
        }
        .cta-inner h2 {
            font-family: var(--font-heading);
            font-weight: 900;
            font-size: 36px;
            color: #fff;
            margin-bottom: 16px;
        }
        .cta-inner h2 .cta-hl {
            color: var(--accent-orange);
        }
        .cta-inner p {
            color: rgba(240, 237, 232, 0.75);
            font-size: 16px;
            margin-bottom: 28px;
            line-height: 1.8;
        }
        .cta-actions {
            display: flex;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }
        .btn-cta-primary {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: var(--accent-orange);
            color: #fff;
            font-weight: 700;
            font-size: 16px;
            padding: 14px 36px;
            border-radius: var(--radius-sm);
            border: 1px solid var(--accent-orange);
            transition: var(--transition);
            font-family: var(--font-heading);
        }
        .btn-cta-primary:hover {
            background: var(--accent-lime);
            border-color: var(--accent-lime);
            color: var(--charcoal);
        }
        .btn-cta-outline {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: transparent;
            color: #fff;
            font-weight: 600;
            font-size: 15px;
            padding: 14px 28px;
            border-radius: var(--radius-sm);
            border: 1px solid rgba(255, 255, 255, 0.3);
            transition: var(--transition);
            font-family: var(--font-heading);
        }
        .btn-cta-outline:hover {
            border-color: var(--accent-lime);
            color: var(--accent-lime);
            background: rgba(198, 255, 0, 0.05);
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--charcoal);
            color: var(--text-on-dark);
            padding: 56px 0 32px;
            border-top: 4px solid var(--accent-orange);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 40px;
        }
        .footer-brand .footer-logo {
            display: flex;
            align-items: center;
            gap: 8px;
            font-family: var(--font-heading);
            font-weight: 900;
            font-size: 20px;
            color: #fff;
            margin-bottom: 12px;
        }
        .footer-brand .footer-logo .logo-mark {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 28px;
            height: 28px;
            background: var(--accent-orange);
            color: #fff;
            font-size: 14px;
            font-weight: 900;
            border-radius: var(--radius-sm);
        }
        .footer-brand p {
            font-size: 14px;
            color: rgba(240, 237, 232, 0.7);
            line-height: 1.8;
        }
        .footer-col h4 {
            font-size: 14px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
            font-family: var(--font-heading);
        }
        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-col ul li {
            margin-bottom: 10px;
        }
        .footer-col ul li a {
            color: rgba(240, 237, 232, 0.65);
            font-size: 14px;
            transition: var(--transition);
        }
        .footer-col ul li a:hover {
            color: var(--accent-lime);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            align-items: center;
            justify-content: space-between;
            font-size: 12px;
            color: rgba(240, 237, 232, 0.5);
            font-family: var(--font-mono);
        }
        .footer-links {
            display: flex;
            gap: 16px;
        }
        .footer-links a {
            color: rgba(240, 237, 232, 0.5);
            font-size: 12px;
            transition: var(--transition);
        }
        .footer-links a:hover {
            color: var(--accent-lime);
        }
        .footer-back-top {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: none;
            border: 1px solid rgba(255, 255, 255, 0.2);
            color: rgba(240, 237, 232, 0.7);
            padding: 8px 16px;
            font-size: 12px;
            cursor: pointer;
            transition: var(--transition);
            border-radius: var(--radius-sm);
            font-family: var(--font-body);
        }
        .footer-back-top:hover {
            background: var(--accent-orange);
            border-color: var(--accent-orange);
            color: #fff;
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1199.98px) {
            .hero-text h1 {
                font-size: 36px;
            }
            .metrics-strip {
                grid-template-columns: repeat(2, 1fr);
            }
            .process-steps {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 991.98px) {
            .hero-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .hero-visual img {
                height: 320px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .search-form-desktop {
                min-width: 180px;
            }
        }

        @media (max-width: 767.98px) {
            .brand-row {
                height: 60px;
            }
            .brand-logo {
                font-size: 20px;
            }
            .brand-logo .logo-mark {
                width: 30px;
                height: 30px;
                font-size: 14px;
            }
            .search-form-desktop {
                display: none;
            }
            .hero-section {
                padding: 36px 0 48px;
            }
            .hero-text h1 {
                font-size: 30px;
            }
            .hero-subtitle {
                font-size: 15px;
            }
            .hero-visual img {
                height: 240px;
            }
            .metrics-strip {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .metric-item .metric-value {
                font-size: 24px;
            }
            .process-steps {
                grid-template-columns: 1fr;
            }
            .spotlight-card {
                grid-template-columns: 1fr;
            }
            .spotlight-card img {
                height: 200px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
            .cta-inner h2 {
                font-size: 28px;
            }
            .section-heading h2 {
                font-size: 26px;
            }
            .benefit-badges {
                gap: 10px;
            }
            .benefit-badge {
                font-size: 12px;
                padding: 8px 14px;
            }
            .qualification-banner {
                padding: 16px 20px;
            }
        }

        @media (max-width: 575.98px) {
            .container-custom {
                padding-left: 16px;
                padding-right: 16px;
            }
            .hero-text h1 {
                font-size: 26px;
            }
            .metrics-strip {
                grid-template-columns: 1fr;
            }
            .btn-hero-primary,
            .btn-cta-primary {
                width: 100%;
                justify-content: center;
            }
            .btn-hero-secondary,
            .btn-cta-outline {
                width: 100%;
                justify-content: center;
            }
            .hero-actions {
                flex-direction: column;
            }
            .cta-actions {
                flex-direction: column;
            }
            .ranking-table thead th {
                font-size: 11px;
                padding: 12px 10px;
            }
            .ranking-table tbody td {
                padding: 12px 10px;
                font-size: 12px;
            }
            .rank-number {
                width: 28px;
                height: 28px;
                font-size: 14px;
            }
        }

/* roulang page: category1 */
:root {
            --charcoal: #141414;
            --graphite: #232323;
            --paper: #F2EFE9;
            --warm-gray: #D9D2C6;
            --accent-orange: #FF4D00;
            --accent-lime: #C6FF00;
            --text-primary: #1a1a1a;
            --text-secondary: #4a4a4a;
            --text-muted: #7a7a7a;
            --text-on-dark: #f0ede8;
            --border-light: #e3ddd2;
            --border-warm: #d9d2c6;
            --shadow-sm: 0 2px 8px rgba(20, 20, 20, 0.06);
            --shadow-md: 0 6px 16px rgba(20, 20, 20, 0.1);
            --shadow-lg: 0 12px 32px rgba(20, 20, 20, 0.14);
            --radius-sm: 2px;
            --radius-md: 4px;
            --radius-lg: 8px;
            --font-heading: 'Noto Sans SC', sans-serif;
            --font-western: 'Archivo Black', sans-serif;
            --font-mono: 'Space Mono', monospace;
            --font-body: 'Noto Sans SC', sans-serif;
            --transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            --container-max: 1200px;
            --section-padding: 72px;
            --section-gap: 60px;
            --nav-height-desktop: 136px;
            --nav-height-mobile: 120px;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-body);
            background-color: var(--paper);
            color: var(--text-primary);
            line-height: 1.75;
            font-size: 16px;
            overflow-x: hidden;
            letter-spacing: 0.02em;
        }

        a {
            color: var(--graphite);
            text-decoration: none;
            transition: var(--transition);
        }

        a:hover {
            color: var(--accent-orange);
            text-decoration: none;
        }

        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        select:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--accent-orange);
            outline-offset: 2px;
            border-radius: var(--radius-sm);
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        .container-custom {
            max-width: var(--container-max);
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        /* ===== 顶部导航 ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1050;
            background-color: rgba(242, 239, 233, 0.96);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-light);
            transition: var(--transition);
        }

        .site-header.scrolled {
            box-shadow: 0 4px 16px rgba(20, 20, 20, 0.08);
            background-color: rgba(242, 239, 233, 0.99);
        }

        .brand-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 68px;
            gap: 16px;
        }

        .brand-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-family: var(--font-heading);
            font-weight: 900;
            font-size: 24px;
            color: var(--charcoal);
            letter-spacing: 0.04em;
            white-space: nowrap;
            flex-shrink: 0;
        }

        .brand-logo .logo-mark {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            background: var(--charcoal);
            color: var(--accent-lime);
            font-size: 18px;
            font-weight: 900;
            border-radius: var(--radius-sm);
            flex-shrink: 0;
        }

        .brand-logo:hover {
            color: var(--charcoal);
        }

        .brand-logo:hover .logo-mark {
            background: var(--accent-orange);
            color: #fff;
        }

        .brand-right {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }

        .search-form-desktop {
            display: flex;
            align-items: center;
            background: #fff;
            border: 1px solid var(--border-warm);
            border-radius: 999px;
            padding: 0 0 0 16px;
            height: 40px;
            transition: var(--transition);
            min-width: 240px;
        }

        .search-form-desktop:focus-within {
            border-color: var(--accent-orange);
            box-shadow: 0 0 0 3px rgba(255, 77, 0, 0.12);
        }

        .search-form-desktop input {
            border: none;
            outline: none;
            background: transparent;
            padding: 8px 8px 8px 4px;
            font-size: 14px;
            color: var(--text-primary);
            width: 100%;
            font-family: var(--font-body);
        }

        .search-form-desktop input::placeholder {
            color: var(--text-muted);
            font-size: 13px;
        }

        .search-form-desktop .search-btn {
            background: none;
            border: none;
            padding: 0 14px;
            color: var(--text-muted);
            cursor: pointer;
            transition: var(--transition);
            height: 100%;
            display: flex;
            align-items: center;
            font-size: 14px;
            border-radius: 0 999px 999px 0;
        }

        .search-form-desktop .search-btn:hover {
            color: var(--accent-orange);
        }

        .btn-brand {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--accent-orange);
            color: #fff;
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 14px;
            padding: 10px 20px;
            border-radius: 999px;
            border: none;
            cursor: pointer;
            transition: var(--transition);
            white-space: nowrap;
            flex-shrink: 0;
            letter-spacing: 0.03em;
        }

        .btn-brand:hover {
            background: var(--charcoal);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: var(--shadow-md);
        }

        .btn-brand .arrow {
            transition: transform 0.3s ease;
        }

        .btn-brand:hover .arrow {
            transform: translateX(4px);
        }

        .channel-row {
            border-top: 1px solid var(--border-light);
            height: 56px;
            display: flex;
            align-items: center;
            overflow: hidden;
        }

        .channel-tabs {
            display: flex;
            align-items: center;
            gap: 4px;
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: none;
            -ms-overflow-style: none;
            white-space: nowrap;
            width: 100%;
            padding-bottom: 0;
        }

        .channel-tabs::-webkit-scrollbar {
            display: none;
        }

        .channel-tab {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-family: var(--font-heading);
            font-weight: 500;
            font-size: 14px;
            color: var(--text-secondary);
            padding: 10px 16px;
            border-radius: 999px;
            transition: var(--transition);
            white-space: nowrap;
            flex-shrink: 0;
            position: relative;
        }

        .channel-tab .tab-dot {
            width: 4px;
            height: 4px;
            border-radius: 50%;
            background: transparent;
            display: inline-block;
            transition: var(--transition);
        }

        .channel-tab:hover {
            color: var(--accent-orange);
            background: rgba(255, 77, 0, 0.06);
        }

        .channel-tab.active {
            color: var(--charcoal);
            font-weight: 700;
            background: var(--warm-gray);
        }

        .channel-tab.active .tab-dot {
            background: var(--accent-orange);
            width: 6px;
            height: 6px;
        }

        .channel-tab.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 16px;
            right: 16px;
            height: 2px;
            background: var(--accent-orange);
            border-radius: 2px;
        }

        /* ===== Hero 区域 ===== */
        .hero-data {
            padding: 60px 0 56px;
            background: var(--paper);
            position: relative;
            border-bottom: 1px solid var(--border-light);
        }

        .hero-data .hero-grid {
            display: grid;
            grid-template-columns: 1.15fr 0.85fr;
            gap: 48px;
            align-items: center;
        }

        .hero-data .hero-tagline {
            font-family: var(--font-mono);
            font-size: 13px;
            letter-spacing: 0.08em;
            color: var(--accent-orange);
            text-transform: uppercase;
            margin-bottom: 14px;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .hero-data .hero-tagline .tag-line {
            width: 28px;
            height: 2px;
            background: var(--accent-orange);
            display: inline-block;
        }

        .hero-data h1 {
            font-family: var(--font-heading);
            font-weight: 900;
            font-size: 42px;
            line-height: 1.25;
            color: var(--charcoal);
            margin-bottom: 18px;
            letter-spacing: -0.01em;
        }

        .hero-data .hero-subtitle {
            font-size: 17px;
            line-height: 1.8;
            color: var(--text-secondary);
            max-width: 580px;
            margin-bottom: 28px;
        }

        .hero-data .hero-meta {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            font-family: var(--font-mono);
            font-size: 12px;
            letter-spacing: 0.04em;
            color: var(--text-muted);
            margin-bottom: 28px;
        }

        .hero-data .hero-meta .meta-chip {
            background: #fff;
            border: 1px solid var(--border-warm);
            border-radius: 999px;
            padding: 6px 14px;
            font-size: 11px;
            letter-spacing: 0.03em;
            color: var(--text-secondary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .hero-data .hero-actions {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
        }

        .btn-primary-data {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: var(--accent-orange);
            color: #fff;
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 16px;
            padding: 14px 28px;
            border-radius: var(--radius-sm);
            border: none;
            cursor: pointer;
            transition: var(--transition);
            letter-spacing: 0.03em;
        }

        .btn-primary-data:hover {
            background: var(--charcoal);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
        }

        .btn-primary-data .arrow {
            transition: transform 0.3s ease;
        }

        .btn-primary-data:hover .arrow {
            transform: translateX(4px);
        }

        .btn-outline-data {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: transparent;
            color: var(--graphite);
            font-family: var(--font-heading);
            font-weight: 500;
            font-size: 15px;
            padding: 14px 24px;
            border-radius: var(--radius-sm);
            border: 1px solid var(--border-warm);
            cursor: pointer;
            transition: var(--transition);
            letter-spacing: 0.03em;
        }

        .btn-outline-data:hover {
            border-color: var(--accent-orange);
            color: var(--accent-orange);
            background: rgba(255, 77, 0, 0.05);
            transform: translateY(-2px);
        }

        .hero-data .hero-visual {
            position: relative;
            border-radius: var(--radius-md);
            overflow: hidden;
            background: var(--graphite);
            min-height: 400px;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: var(--shadow-lg);
        }

        .hero-data .hero-visual img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            min-height: 400px;
        }

        .hero-data .hero-visual::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(20, 20, 20, 0.2) 0%, rgba(20, 20, 20, 0.55) 100%);
            pointer-events: none;
        }

        .hero-data .visual-caption {
            position: absolute;
            bottom: 20px;
            left: 20px;
            right: 20px;
            z-index: 2;
            display: flex;
            align-items: center;
            justify-content: space-between;
            color: #fff;
            font-family: var(--font-mono);
            font-size: 12px;
            letter-spacing: 0.05em;
            text-shadow: 0 1px 4px rgba(0, 0, 0, 0.5);
        }

        .hero-data .visual-caption .live-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--accent-orange);
            color: #fff;
            padding: 4px 10px;
            border-radius: 999px;
            font-size: 11px;
            font-weight: 700;
        }

        .hero-data .visual-caption .live-badge .pulse-dot {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: #fff;
            animation: pulse 1.5s infinite;
        }

        @keyframes pulse {
            0%,
            100% {
                opacity: 1;
            }
            50% {
                opacity: 0.3;
            }
        }

        /* ===== 数据筛选条 ===== */
        .data-filter-bar {
            background: #fff;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            padding: 20px 24px;
            margin-top: -28px;
            position: relative;
            z-index: 5;
            box-shadow: var(--shadow-sm);
            display: flex;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
        }

        .data-filter-bar .filter-label {
            font-family: var(--font-mono);
            font-size: 12px;
            letter-spacing: 0.06em;
            color: var(--text-muted);
            text-transform: uppercase;
            white-space: nowrap;
        }

        .data-filter-bar .filter-btns {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
        }

        .data-filter-bar .filter-btn {
            background: var(--paper);
            border: 1px solid var(--border-light);
            border-radius: 999px;
            padding: 8px 18px;
            font-size: 13px;
            font-weight: 500;
            color: var(--text-secondary);
            cursor: pointer;
            transition: var(--transition);
            white-space: nowrap;
            font-family: var(--font-body);
        }

        .data-filter-bar .filter-btn:hover {
            border-color: var(--accent-orange);
            color: var(--accent-orange);
        }

        .data-filter-bar .filter-btn.active {
            background: var(--charcoal);
            color: #fff;
            border-color: var(--charcoal);
            font-weight: 700;
        }

        .data-filter-bar .filter-refresh {
            margin-left: auto;
            display: flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            color: var(--accent-orange);
            font-weight: 500;
            cursor: pointer;
            white-space: nowrap;
        }

        .data-filter-bar .filter-refresh:hover {
            color: var(--charcoal);
        }

        /* ===== 数据看板 ===== */
        .data-dashboard-section {
            padding: 56px 0;
            background: var(--paper);
        }

        .section-heading {
            margin-bottom: 36px;
        }

        .section-heading .section-label {
            font-family: var(--font-mono);
            font-size: 12px;
            letter-spacing: 0.08em;
            color: var(--accent-orange);
            text-transform: uppercase;
            margin-bottom: 10px;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .section-heading .section-label .tag-line {
            width: 24px;
            height: 2px;
            background: var(--accent-orange);
            display: inline-block;
        }

        .section-heading h2 {
            font-family: var(--font-heading);
            font-weight: 900;
            font-size: 30px;
            color: var(--charcoal);
            margin-bottom: 12px;
            letter-spacing: -0.01em;
        }

        .section-heading .section-desc {
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-secondary);
            max-width: 720px;
        }

        .dashboard-layout {
            display: grid;
            grid-template-columns: 1.1fr 0.9fr;
            gap: 28px;
        }

        .table-card {
            background: #fff;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
        }

        .table-card:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--border-warm);
        }

        .table-card .table-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 22px;
            background: var(--charcoal);
            color: #fff;
        }

        .table-card .table-header h3 {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 16px;
            margin: 0;
            letter-spacing: 0.03em;
        }

        .table-card .table-header .table-tag {
            font-family: var(--font-mono);
            font-size: 11px;
            letter-spacing: 0.05em;
            background: rgba(255, 255, 255, 0.15);
            padding: 4px 10px;
            border-radius: 999px;
            color: var(--accent-lime);
        }

        .data-table {
            width: 100%;
            border-collapse: collapse;
        }

        .data-table th {
            font-family: var(--font-mono);
            font-size: 11px;
            letter-spacing: 0.05em;
            text-transform: uppercase;
            color: var(--text-muted);
            font-weight: 400;
            text-align: left;
            padding: 12px 18px;
            border-bottom: 1px solid var(--border-light);
            background: rgba(217, 210, 198, 0.15);
        }

        .data-table td {
            padding: 13px 18px;
            border-bottom: 1px solid var(--border-light);
            font-size: 14px;
            color: var(--text-primary);
        }

        .data-table tr:last-child td {
            border-bottom: none;
        }

        .data-table tr:hover td {
            background: rgba(255, 77, 0, 0.04);
        }

        .data-table .team-name {
            font-weight: 700;
            color: var(--charcoal);
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .data-table .team-rank {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--paper);
            font-family: var(--font-mono);
            font-size: 12px;
            font-weight: 700;
            color: var(--text-secondary);
            flex-shrink: 0;
        }

        .data-table .rank-1 .team-rank {
            background: var(--accent-orange);
            color: #fff;
        }

        .data-table .rank-2 .team-rank {
            background: var(--graphite);
            color: #fff;
        }

        .data-table .rank-3 .team-rank {
            background: var(--warm-gray);
            color: var(--charcoal);
        }

        .data-table .trend-up {
            color: #2e7d32;
            font-weight: 700;
            font-family: var(--font-mono);
            font-size: 12px;
        }

        .data-table .trend-down {
            color: #c62828;
            font-weight: 700;
            font-family: var(--font-mono);
            font-size: 12px;
        }

        .kpi-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
        }

        .kpi-card {
            background: var(--graphite);
            border-radius: var(--radius-md);
            padding: 22px;
            color: #fff;
            transition: var(--transition);
            border: 1px solid rgba(255, 255, 255, 0.08);
        }

        .kpi-card:hover {
            border-color: var(--accent-orange);
            box-shadow: var(--shadow-md);
        }

        .kpi-card .kpi-number {
            font-family: var(--font-western);
            font-size: 36px;
            font-weight: 400;
            color: var(--accent-lime);
            margin-bottom: 8px;
            letter-spacing: 0.02em;
            line-height: 1.1;
        }

        .kpi-card .kpi-number .unit {
            font-size: 16px;
            font-family: var(--font-body);
            font-weight: 700;
            color: #fff;
            margin-left: 4px;
        }

        .kpi-card .kpi-label {
            font-size: 13px;
            color: var(--text-on-dark);
            opacity: 0.8;
            line-height: 1.5;
        }

        .kpi-card .kpi-trend {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            font-family: var(--font-mono);
            font-size: 11px;
            letter-spacing: 0.04em;
            margin-top: 8px;
            color: var(--accent-lime);
        }

        /* ===== 能力亮点区 ===== */
        .capabilities-section {
            padding: 60px 0;
            background: #fff;
            border-top: 1px solid var(--border-light);
            border-bottom: 1px solid var(--border-light);
        }

        .capabilities-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            margin-top: 4px;
        }

        .capability-item {
            padding: 26px 22px;
            background: var(--paper);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }

        .capability-item::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 3px;
            height: 100%;
            background: var(--accent-orange);
            opacity: 0;
            transition: var(--transition);
        }

        .capability-item:hover {
            border-color: var(--accent-orange);
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }

        .capability-item:hover::before {
            opacity: 1;
        }

        .capability-item .cap-icon {
            width: 46px;
            height: 46px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: var(--charcoal);
            color: var(--accent-lime);
            border-radius: var(--radius-sm);
            margin-bottom: 16px;
            font-size: 20px;
        }

        .capability-item h3 {
            font-family: var(--font-heading);
            font-weight: 900;
            font-size: 17px;
            color: var(--charcoal);
            margin-bottom: 10px;
            letter-spacing: 0.02em;
        }

        .capability-item p {
            font-size: 14px;
            line-height: 1.7;
            color: var(--text-secondary);
            margin-bottom: 0;
        }

        /* ===== 数据覆盖范围 ===== */
        .coverage-section {
            padding: 60px 0;
            background: var(--paper);
        }

        .coverage-grid {
            display: grid;
            grid-template-columns: repeat(6, 1fr);
            gap: 14px;
            margin-top: 8px;
        }

        .coverage-item {
            background: #fff;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            padding: 20px 16px;
            text-align: center;
            transition: var(--transition);
            cursor: default;
        }

        .coverage-item:hover {
            border-color: var(--accent-orange);
            box-shadow: var(--shadow-sm);
            transform: translateY(-2px);
        }

        .coverage-item .sport-icon {
            font-size: 28px;
            margin-bottom: 10px;
            color: var(--accent-orange);
        }

        .coverage-item .sport-name {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 14px;
            color: var(--charcoal);
            display: block;
        }

        .coverage-item .sport-count {
            font-family: var(--font-mono);
            font-size: 11px;
            letter-spacing: 0.04em;
            color: var(--text-muted);
            display: block;
            margin-top: 4px;
        }

        /* ===== 适用场景 ===== */
        .scenarios-section {
            padding: 60px 0;
            background: var(--graphite);
            color: var(--text-on-dark);
        }

        .scenarios-section .section-heading h2 {
            color: #fff;
        }

        .scenarios-section .section-heading .section-desc {
            color: rgba(240, 237, 232, 0.75);
        }

        .scenario-list {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
            margin-top: 8px;
        }

        .scenario-card {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: var(--radius-md);
            padding: 26px 24px;
            transition: var(--transition);
        }

        .scenario-card:hover {
            border-color: var(--accent-orange);
            background: rgba(255, 77, 0, 0.08);
            box-shadow: var(--shadow-md);
        }

        .scenario-card .scenario-num {
            font-family: var(--font-western);
            font-size: 28px;
            color: var(--accent-orange);
            margin-bottom: 12px;
            display: block;
        }

        .scenario-card h3 {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 18px;
            color: #fff;
            margin-bottom: 10px;
        }

        .scenario-card p {
            font-size: 14px;
            line-height: 1.7;
            color: rgba(240, 237, 232, 0.7);
            margin-bottom: 0;
        }

        /* ===== FAQ ===== */
        .faq-section {
            padding: 60px 0;
            background: var(--paper);
        }

        .faq-list {
            max-width: 820px;
            margin: 0 auto;
        }

        .faq-item {
            background: #fff;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            margin-bottom: 12px;
            overflow: hidden;
            transition: var(--transition);
        }

        .faq-item:hover {
            border-color: var(--border-warm);
        }

        .faq-item.active {
            border-color: var(--accent-orange);
            box-shadow: var(--shadow-sm);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 24px;
            cursor: pointer;
            gap: 16px;
            background: transparent;
            border: none;
            width: 100%;
            text-align: left;
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 16px;
            color: var(--charcoal);
            letter-spacing: 0.02em;
            transition: var(--transition);
        }

        .faq-question .faq-num {
            font-family: var(--font-mono);
            font-size: 12px;
            color: var(--accent-orange);
            flex-shrink: 0;
            letter-spacing: 0.05em;
        }

        .faq-question .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            display: flex;
            align-items: center;
            justify-content: center;
            border: 1px solid var(--border-warm);
            border-radius: 50%;
            font-size: 12px;
            color: var(--text-muted);
            transition: var(--transition);
        }

        .faq-item.active .faq-question .faq-icon {
            background: var(--accent-orange);
            color: #fff;
            border-color: var(--accent-orange);
            transform: rotate(180deg);
        }

        .faq-answer {
            padding: 0 24px 20px 24px;
            font-size: 15px;
            line-height: 1.8;
            color: var(--text-secondary);
            display: none;
            border-left: 3px solid var(--accent-orange);
            margin-left: 24px;
            padding-left: 20px;
        }

        .faq-item.active .faq-answer {
            display: block;
        }

        /* ===== CTA 区域 ===== */
        .cta-section {
            padding: 64px 0;
            background: var(--charcoal);
            color: #fff;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -40%;
            right: -10%;
            width: 400px;
            height: 400px;
            border-radius: 50%;
            background: rgba(255, 77, 0, 0.12);
            pointer-events: none;
        }

        .cta-section::after {
            content: '';
            position: absolute;
            bottom: -30%;
            left: -5%;
            width: 300px;
            height: 300px;
            border-radius: 50%;
            background: rgba(198, 255, 0, 0.08);
            pointer-events: none;
        }

        .cta-section .cta-inner {
            position: relative;
            z-index: 2;
            max-width: 680px;
            margin: 0 auto;
        }

        .cta-section h2 {
            font-family: var(--font-heading);
            font-weight: 900;
            font-size: 32px;
            margin-bottom: 16px;
            letter-spacing: -0.01em;
        }

        .cta-section h2 .highlight {
            color: var(--accent-lime);
        }

        .cta-section p {
            font-size: 16px;
            line-height: 1.7;
            color: rgba(240, 237, 232, 0.75);
            margin-bottom: 32px;
        }

        .cta-section .cta-btns {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }

        .btn-cta-primary {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: var(--accent-orange);
            color: #fff;
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 16px;
            padding: 16px 32px;
            border-radius: var(--radius-sm);
            border: none;
            cursor: pointer;
            transition: var(--transition);
            letter-spacing: 0.03em;
        }

        .btn-cta-primary:hover {
            background: #fff;
            color: var(--charcoal);
            transform: translateY(-2px);
            box-shadow: var(--shadow-lg);
        }

        .btn-cta-outline {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: transparent;
            color: #fff;
            font-family: var(--font-heading);
            font-weight: 500;
            font-size: 16px;
            padding: 16px 28px;
            border-radius: var(--radius-sm);
            border: 1px solid rgba(255, 255, 255, 0.3);
            cursor: pointer;
            transition: var(--transition);
            letter-spacing: 0.03em;
        }

        .btn-cta-outline:hover {
            border-color: var(--accent-lime);
            color: var(--accent-lime);
            background: rgba(198, 255, 0, 0.08);
            transform: translateY(-2px);
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--charcoal);
            color: var(--text-on-dark);
            padding: 56px 0 0;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
        }

        .site-footer .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1fr;
            gap: 36px;
            padding-bottom: 36px;
        }

        .site-footer .footer-brand .footer-logo {
            display: flex;
            align-items: center;
            gap: 8px;
            font-family: var(--font-heading);
            font-weight: 900;
            font-size: 20px;
            color: #fff;
            margin-bottom: 14px;
            letter-spacing: 0.04em;
        }

        .footer-logo .logo-mark {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 32px;
            height: 32px;
            background: rgba(255, 255, 255, 0.12);
            color: var(--accent-lime);
            font-size: 15px;
            font-weight: 900;
            border-radius: var(--radius-sm);
        }

        .footer-brand p {
            font-size: 14px;
            line-height: 1.75;
            color: rgba(240, 237, 232, 0.65);
            max-width: 320px;
        }

        .site-footer .footer-col h4 {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 14px;
            letter-spacing: 0.05em;
            color: #fff;
            margin-bottom: 16px;
            text-transform: uppercase;
        }

        .site-footer .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .site-footer .footer-col ul li {
            margin-bottom: 10px;
        }

        .site-footer .footer-col ul a {
            color: rgba(240, 237, 232, 0.65);
            font-size: 14px;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .site-footer .footer-col ul a:hover {
            color: var(--accent-orange);
            transform: translateX(3px);
        }

        .site-footer .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 20px 0;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 12px;
            color: rgba(240, 237, 232, 0.5);
            letter-spacing: 0.03em;
        }

        .site-footer .footer-bottom .footer-links {
            display: flex;
            gap: 16px;
        }

        .site-footer .footer-bottom .footer-links a {
            color: rgba(240, 237, 232, 0.5);
            font-size: 12px;
            transition: var(--transition);
        }

        .site-footer .footer-bottom .footer-links a:hover {
            color: var(--accent-orange);
        }

        .site-footer .footer-back-top {
            background: rgba(255, 255, 255, 0.1);
            border: 1px solid rgba(255, 255, 255, 0.2);
            color: #fff;
            padding: 8px 16px;
            border-radius: 999px;
            font-size: 12px;
            cursor: pointer;
            transition: var(--transition);
            font-family: var(--font-body);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .site-footer .footer-back-top:hover {
            background: var(--accent-orange);
            border-color: var(--accent-orange);
            color: #fff;
        }

        /* ===== 圆角覆盖 Bootstrap ===== */
        .btn {
            border-radius: var(--radius-sm);
        }

        .form-control,
        .form-select {
            border-radius: var(--radius-sm);
            border-color: var(--border-warm);
        }

        .form-control:focus,
        .form-select:focus {
            border-color: var(--accent-orange);
            box-shadow: 0 0 0 3px rgba(255, 77, 0, 0.12);
        }

        .accordion-button:not(.collapsed) {
            background-color: var(--paper);
            color: var(--charcoal);
            box-shadow: none;
        }

        .accordion-button:focus {
            box-shadow: none;
            border-color: var(--accent-orange);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1199.98px) {
            .hero-data .hero-grid {
                gap: 32px;
            }
            .hero-data h1 {
                font-size: 36px;
            }
            .capabilities-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .coverage-grid {
                grid-template-columns: repeat(3, 1fr);
            }
            .kpi-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 991.98px) {
            .hero-data .hero-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .hero-data .hero-visual {
                min-height: 280px;
            }
            .hero-data .hero-visual img {
                min-height: 280px;
            }
            .dashboard-layout {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .kpi-grid {
                grid-template-columns: repeat(4, 1fr);
            }
            .scenario-list {
                grid-template-columns: 1fr;
            }
            .site-footer .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .brand-row .search-form-desktop {
                min-width: 160px;
            }
        }

        @media (max-width: 767.98px) {
            :root {
                --section-padding: 48px;
                --section-gap: 40px;
            }
            .container-custom {
                padding-left: 16px;
                padding-right: 16px;
            }
            .brand-row {
                height: 60px;
                gap: 10px;
            }
            .brand-logo {
                font-size: 20px;
            }
            .brand-logo .logo-mark {
                width: 30px;
                height: 30px;
                font-size: 15px;
            }
            .brand-right {
                gap: 8px;
            }
            .search-form-desktop {
                min-width: auto;
                width: 32px;
                padding: 0;
                justify-content: center;
                border-radius: 50%;
                height: 36px;
            }
            .search-form-desktop input {
                display: none;
            }
            .search-form-desktop .search-btn {
                padding: 0 10px;
                border-radius: 50%;
            }
            .btn-brand {
                padding: 8px 14px;
                font-size: 12px;
                gap: 4px;
            }
            .channel-row {
                height: 48px;
            }
            .channel-tab {
                font-size: 13px;
                padding: 8px 12px;
            }
            .channel-tab.active::after {
                left: 12px;
                right: 12px;
            }
            .hero-data {
                padding: 36px 0 36px;
            }
            .hero-data h1 {
                font-size: 28px;
                line-height: 1.35;
            }
            .hero-data .hero-subtitle {
                font-size: 15px;
            }
            .hero-data .hero-meta {
                gap: 8px;
                font-size: 10px;
            }
            .hero-data .hero-visual {
                min-height: 220px;
            }
            .hero-data .hero-visual img {
                min-height: 220px;
            }
            .data-filter-bar {
                padding: 14px 16px;
                gap: 10px;
                margin-top: -20px;
            }
            .data-filter-bar .filter-btn {
                padding: 6px 13px;
                font-size: 12px;
            }
            .data-filter-bar .filter-refresh {
                font-size: 12px;
                margin-left: 0;
            }
            .section-heading h2 {
                font-size: 24px;
            }
            .kpi-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .kpi-card {
                padding: 16px;
            }
            .kpi-card .kpi-number {
                font-size: 28px;
            }
            .capabilities-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }
            .coverage-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 10px;
            }
            .cta-section h2 {
                font-size: 24px;
            }
            .cta-section {
                padding: 48px 0;
            }
            .site-footer .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .site-footer .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
            .faq-question {
                padding: 16px 18px;
                font-size: 14px;
            }
            .faq-answer {
                padding: 0 16px 16px 16px;
                margin-left: 16px;
                padding-left: 14px;
                font-size: 14px;
            }
            .data-table th {
                padding: 10px 12px;
                font-size: 10px;
            }
            .data-table td {
                padding: 10px 12px;
                font-size: 13px;
            }
            .table-card .table-header {
                padding: 14px 16px;
            }
            .table-card .table-header h3 {
                font-size: 14px;
            }
        }

        @media (max-width: 575.98px) {
            .container-custom {
                padding-left: 14px;
                padding-right: 14px;
            }
            .brand-row {
                gap: 6px;
            }
            .brand-logo {
                font-size: 18px;
                gap: 6px;
            }
            .brand-logo .logo-mark {
                width: 26px;
                height: 26px;
                font-size: 13px;
            }
            .btn-brand {
                padding: 7px 10px;
                font-size: 11px;
            }
            .btn-brand .arrow {
                display: none;
            }
            .hero-data h1 {
                font-size: 24px;
            }
            .hero-data .hero-subtitle {
                font-size: 14px;
                line-height: 1.7;
            }
            .hero-data .hero-actions {
                gap: 10px;
            }
            .btn-primary-data,
            .btn-outline-data {
                padding: 12px 18px;
                font-size: 14px;
            }
            .kpi-grid {
                grid-template-columns: 1fr 1fr;
            }
            .coverage-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .faq-question {
                font-size: 13px;
                padding: 14px 16px;
            }
            .cta-section h2 {
                font-size: 21px;
            }
            .cta-section p {
                font-size: 14px;
            }
            .btn-cta-primary,
            .btn-cta-outline {
                padding: 14px 22px;
                font-size: 14px;
            }
        }

/* roulang page: category4 */
:root {
            --charcoal: #141414;
            --graphite: #232323;
            --paper: #F2EFE9;
            --warm-gray: #D9D2C6;
            --accent-orange: #FF4D00;
            --accent-lime: #C6FF00;
            --text-primary: #1a1a1a;
            --text-secondary: #4a4a4a;
            --text-muted: #7a7a7a;
            --text-on-dark: #f0ede8;
            --border-light: #e3ddd2;
            --border-warm: #d9d2c6;
            --shadow-sm: 0 2px 8px rgba(20,20,20,0.06);
            --shadow-md: 0 6px 16px rgba(20,20,20,0.1);
            --shadow-lg: 0 12px 32px rgba(20,20,20,0.14);
            --radius-sm: 2px;
            --radius-md: 4px;
            --radius-lg: 8px;
            --font-heading: 'Noto Sans SC', sans-serif;
            --font-western: 'Archivo Black', sans-serif;
            --font-mono: 'Space Mono', monospace;
            --font-body: 'Noto Sans SC', sans-serif;
            --transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            --container-max: 1200px;
            --section-padding: 72px;
            --section-gap: 60px;
            --nav-height-desktop: 136px;
            --nav-height-mobile: 120px;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        body {
            font-family: var(--font-body);
            background-color: var(--paper);
            color: var(--text-primary);
            line-height: 1.75;
            font-size: 16px;
            overflow-x: hidden;
            letter-spacing: 0.02em;
        }
        a {
            color: var(--graphite);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--accent-orange);
            text-decoration: none;
        }
        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        select:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--accent-orange);
            outline-offset: 2px;
            border-radius: var(--radius-sm);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container-custom {
            max-width: var(--container-max);
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }
        @media (max-width: 575.98px) {
            .container-custom {
                padding-left: 16px;
                padding-right: 16px;
            }
        }

        /* ===== 顶部导航 ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1050;
            background-color: rgba(242, 239, 233, 0.96);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-light);
            transition: var(--transition);
        }
        .site-header.scrolled {
            box-shadow: 0 4px 16px rgba(20, 20, 20, 0.08);
            background-color: rgba(242, 239, 233, 0.99);
        }
        .brand-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 68px;
            gap: 16px;
        }
        .brand-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-family: var(--font-heading);
            font-weight: 900;
            font-size: 24px;
            color: var(--charcoal);
            letter-spacing: 0.04em;
            white-space: nowrap;
            flex-shrink: 0;
        }
        .brand-logo .logo-mark {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            background: var(--charcoal);
            color: var(--accent-lime);
            font-size: 18px;
            font-weight: 900;
            border-radius: var(--radius-sm);
            flex-shrink: 0;
        }
        .brand-logo:hover {
            color: var(--charcoal);
        }
        .brand-logo:hover .logo-mark {
            background: var(--accent-orange);
            color: #fff;
        }
        .brand-right {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }
        .search-form-desktop {
            display: flex;
            align-items: center;
            background: #fff;
            border: 1px solid var(--border-warm);
            border-radius: 999px;
            padding: 0 0 0 16px;
            height: 40px;
            transition: var(--transition);
            min-width: 240px;
        }
        .search-form-desktop:focus-within {
            border-color: var(--accent-orange);
            box-shadow: 0 0 0 3px rgba(255, 77, 0, 0.12);
        }
        .search-form-desktop input {
            border: none;
            outline: none;
            background: transparent;
            padding: 8px 8px 8px 4px;
            font-size: 14px;
            color: var(--text-primary);
            width: 100%;
            font-family: var(--font-body);
        }
        .search-form-desktop input::placeholder {
            color: var(--text-muted);
            font-size: 13px;
        }
        .search-form-desktop .search-btn {
            background: none;
            border: none;
            padding: 0 14px;
            color: var(--text-muted);
            cursor: pointer;
            transition: var(--transition);
            height: 100%;
            display: flex;
            align-items: center;
            font-size: 14px;
            border-radius: 0 999px 999px 0;
        }
        .search-form-desktop .search-btn:hover {
            color: var(--accent-orange);
        }
        .btn-brand {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--accent-orange);
            color: #fff;
            padding: 10px 20px;
            border-radius: 999px;
            font-weight: 700;
            font-size: 14px;
            border: none;
            cursor: pointer;
            transition: var(--transition);
            white-space: nowrap;
        }
        .btn-brand .arrow {
            transition: transform 0.3s ease;
        }
        .btn-brand:hover {
            background: var(--charcoal);
            color: var(--accent-lime);
        }
        .btn-brand:hover .arrow {
            transform: translateX(4px);
        }
        .channel-row {
            border-top: 1px solid var(--border-light);
            height: 48px;
            display: flex;
            align-items: center;
        }
        .channel-tabs {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: nowrap;
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: none;
            -ms-overflow-style: none;
            width: 100%;
        }
        .channel-tabs::-webkit-scrollbar {
            display: none;
        }
        .channel-tab {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 16px;
            border-radius: 999px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
            background: transparent;
            white-space: nowrap;
            transition: var(--transition);
            position: relative;
            border: 1px solid transparent;
            flex-shrink: 0;
        }
        .channel-tab .tab-dot {
            display: inline-block;
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--accent-orange);
            margin-left: 2px;
            opacity: 0;
            transition: var(--transition);
        }
        .channel-tab:hover {
            color: var(--accent-orange);
            background: rgba(255, 77, 0, 0.06);
        }
        .channel-tab.active {
            background: var(--charcoal);
            color: #fff;
            font-weight: 700;
            border-color: var(--charcoal);
        }
        .channel-tab.active .tab-dot {
            opacity: 1;
        }
        @media (max-width: 991.98px) {
            .brand-row {
                height: 60px;
            }
            .search-form-desktop {
                min-width: 160px;
            }
            .search-form-desktop input::placeholder {
                font-size: 12px;
            }
            .btn-brand {
                padding: 8px 16px;
                font-size: 13px;
            }
            .channel-row {
                height: 44px;
            }
            .channel-tab {
                padding: 6px 14px;
                font-size: 13px;
            }
        }
        @media (max-width: 575.98px) {
            .brand-logo {
                font-size: 20px;
            }
            .brand-logo .logo-mark {
                width: 30px;
                height: 30px;
                font-size: 15px;
            }
            .brand-right {
                gap: 8px;
            }
            .search-form-desktop {
                min-width: 120px;
                padding-left: 10px;
                height: 36px;
            }
            .search-form-desktop input {
                font-size: 12px;
                padding: 4px;
            }
            .search-form-desktop input::placeholder {
                font-size: 11px;
            }
            .search-form-desktop .search-btn {
                padding: 0 10px;
                font-size: 12px;
            }
            .btn-brand {
                padding: 6px 12px;
                font-size: 12px;
                gap: 4px;
            }
            .channel-row {
                height: 40px;
            }
            .channel-tab {
                padding: 5px 12px;
                font-size: 12px;
                gap: 4px;
            }
        }

        /* ===== 通用板块 ===== */
        .section {
            padding: var(--section-padding) 0;
            position: relative;
        }
        @media (max-width: 991.98px) {
            .section {
                padding: 48px 0;
            }
        }
        @media (max-width: 575.98px) {
            .section {
                padding: 36px 0;
            }
        }
        .section-header {
            margin-bottom: 40px;
        }
        .section-label {
            font-family: var(--font-mono);
            font-size: 12px;
            letter-spacing: 0.14em;
            text-transform: uppercase;
            color: var(--accent-orange);
            display: block;
            margin-bottom: 12px;
        }
        .section-title {
            font-family: var(--font-heading);
            font-weight: 900;
            font-size: 32px;
            line-height: 1.3;
            color: var(--charcoal);
            margin-bottom: 12px;
        }
        @media (max-width: 767.98px) {
            .section-title {
                font-size: 24px;
            }
        }
        .section-desc {
            font-size: 16px;
            color: var(--text-secondary);
            max-width: 720px;
            line-height: 1.8;
        }
        .divider {
            height: 1px;
            background: var(--border-warm);
            margin: 0;
        }

        /* ===== Hero区 ===== */
        .gear-hero {
            background: var(--charcoal);
            color: var(--text-on-dark);
            padding: 56px 0 72px;
            position: relative;
            overflow: hidden;
        }
        .gear-hero::before {
            content: '';
            position: absolute;
            top: 0;
            right: 0;
            width: 45%;
            height: 100%;
            background: linear-gradient(to left, rgba(20,20,20,0.82), rgba(20,20,20,0));
            z-index: 0;
            pointer-events: none;
        }
        .gear-hero .container-custom {
            position: relative;
            z-index: 1;
        }
        .gear-hero-grid {
            display: grid;
            grid-template-columns: 1fr 360px;
            gap: 48px;
            align-items: center;
        }
        .gear-hero-main .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-family: var(--font-mono);
            font-size: 13px;
            color: var(--accent-lime);
            margin-bottom: 20px;
            letter-spacing: 0.08em;
        }
        .gear-hero-main h1 {
            font-family: var(--font-heading);
            font-weight: 900;
            font-size: 42px;
            line-height: 1.28;
            color: #fff;
            margin-bottom: 20px;
            letter-spacing: 0.02em;
        }
        .gear-hero-main h1 em {
            font-style: normal;
            color: var(--accent-orange);
        }
        .gear-hero-main .hero-sub {
            font-size: 17px;
            line-height: 1.85;
            color: rgba(240, 237, 232, 0.82);
            max-width: 600px;
            margin-bottom: 28px;
        }
        .hero-meta {
            display: flex;
            align-items: center;
            gap: 20px;
            font-family: var(--font-mono);
            font-size: 13px;
            color: rgba(240, 237, 232, 0.7);
            letter-spacing: 0.06em;
            border-top: 1px solid rgba(217, 210, 198, 0.25);
            padding-top: 20px;
        }
        .hero-meta span {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .hero-meta .meta-dot {
            width: 8px;
            height: 8px;
            background: var(--accent-lime);
            border-radius: 50%;
            display: inline-block;
            animation: pulse-dot 2s infinite;
        }
        @keyframes pulse-dot {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.4; }
        }
        .gear-hero-side {
            background: rgba(35, 35, 35, 0.88);
            border: 1px solid rgba(217, 210, 198, 0.22);
            border-radius: var(--radius-lg);
            padding: 28px;
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
        }
        .gear-hero-side .identity-header {
            display: flex;
            align-items: center;
            gap: 16px;
            margin-bottom: 22px;
            border-bottom: 1px solid rgba(217, 210, 198, 0.16);
            padding-bottom: 18px;
        }
        .gear-hero-side .identity-avatar {
            width: 56px;
            height: 56px;
            background: var(--accent-orange);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-family: var(--font-western);
            font-size: 22px;
            color: #fff;
            font-weight: 700;
            flex-shrink: 0;
        }
        .gear-hero-side .identity-name {
            font-family: var(--font-heading);
            font-weight: 900;
            font-size: 18px;
            color: #fff;
        }
        .gear-hero-side .identity-role {
            font-family: var(--font-mono);
            font-size: 12px;
            color: var(--accent-lime);
            letter-spacing: 0.08em;
            text-transform: uppercase;
        }
        .gear-hero-side .hero-stats {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 14px;
            margin-bottom: 22px;
        }
        .gear-hero-side .stat-box {
            text-align: center;
            padding: 14px 6px;
            border: 1px solid rgba(217, 210, 198, 0.16);
            border-radius: var(--radius-sm);
            transition: var(--transition);
        }
        .gear-hero-side .stat-box:hover {
            border-color: var(--accent-orange);
        }
        .gear-hero-side .stat-num {
            font-family: var(--font-western);
            font-size: 24px;
            color: #fff;
            font-weight: 700;
            display: block;
            line-height: 1.2;
        }
        .gear-hero-side .stat-num small {
            font-size: 13px;
            color: var(--accent-lime);
        }
        .gear-hero-side .stat-label {
            font-family: var(--font-mono);
            font-size: 11px;
            color: rgba(240, 237, 232, 0.65);
            letter-spacing: 0.04em;
            display: block;
            margin-top: 4px;
        }
        .btn-subscribe {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
            width: 100%;
            background: var(--accent-orange);
            color: #fff;
            border: none;
            padding: 14px 20px;
            border-radius: var(--radius-sm);
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 16px;
            cursor: pointer;
            transition: var(--transition);
        }
        .btn-subscribe .fa-arrow-right {
            transition: transform 0.3s ease;
            font-size: 14px;
        }
        .btn-subscribe:hover {
            background: var(--accent-lime);
            color: var(--charcoal);
        }
        .btn-subscribe:hover .fa-arrow-right {
            transform: translateX(5px);
        }
        @media (max-width: 991.98px) {
            .gear-hero-grid {
                grid-template-columns: 1fr;
                gap: 36px;
            }
            .gear-hero-main h1 {
                font-size: 32px;
            }
            .gear-hero-side {
                max-width: 480px;
            }
        }
        @media (max-width: 575.98px) {
            .gear-hero {
                padding: 36px 0 48px;
            }
            .gear-hero-main h1 {
                font-size: 26px;
            }
            .gear-hero-main .hero-sub {
                font-size: 15px;
            }
            .hero-meta {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
                font-size: 12px;
            }
            .gear-hero-side {
                padding: 20px;
            }
            .gear-hero-side .stat-num {
                font-size: 20px;
            }
        }

        /* ===== 评测标准章节索引 ===== */
        .standards-index {
            background: var(--paper);
        }
        .standards-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 0;
            border: 1px solid var(--border-warm);
            border-radius: 4px;
            overflow: hidden;
        }
        .standard-item {
            padding: 28px 32px;
            border-bottom: 1px solid var(--border-light);
            border-right: 1px solid var(--border-light);
            display: flex;
            gap: 20px;
            align-items: flex-start;
            transition: var(--transition);
            background: rgba(255, 255, 255, 0.5);
        }
        .standard-item:nth-child(odd) {
            border-right: 1px solid var(--border-light);
        }
        .standard-item:nth-child(even) {
            border-right: none;
        }
        .standard-item:hover {
            background: #fff;
            border-left: 3px solid var(--accent-orange);
            padding-left: 29px;
        }
        .standard-item .std-num {
            font-family: var(--font-western);
            font-size: 32px;
            font-weight: 700;
            color: var(--accent-orange);
            line-height: 1;
            flex-shrink: 0;
            min-width: 52px;
        }
        .standard-item .std-content h3 {
            font-family: var(--font-heading);
            font-weight: 900;
            font-size: 18px;
            color: var(--charcoal);
            margin-bottom: 8px;
        }
        .standard-item .std-content p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.75;
            margin-bottom: 0;
        }
        .standard-item .std-content .std-weight {
            display: inline-block;
            font-family: var(--font-mono);
            font-size: 12px;
            background: var(--charcoal);
            color: var(--accent-lime);
            padding: 4px 10px;
            border-radius: 999px;
            margin-top: 8px;
            letter-spacing: 0.06em;
        }
        @media (max-width: 767.98px) {
            .standards-grid {
                grid-template-columns: 1fr;
            }
            .standard-item {
                padding: 20px 22px;
                border-right: none;
            }
            .standard-item:nth-child(odd) {
                border-right: none;
            }
            .standard-item .std-num {
                font-size: 26px;
                min-width: 40px;
            }
        }

        /* ===== 评测流程时间轴 ===== */
        .timeline-section {
            background: var(--white, #fffdf9);
            border-top: 1px solid var(--border-light);
            border-bottom: 1px solid var(--border-light);
        }
        .timeline-wrap {
            position: relative;
            padding-left: 32px;
        }
        .timeline-wrap::before {
            content: '';
            position: absolute;
            left: 8px;
            top: 8px;
            bottom: 8px;
            width: 2px;
            background: var(--border-warm);
        }
        .timeline-item {
            position: relative;
            margin-bottom: 36px;
            padding-left: 28px;
        }
        .timeline-item:last-child {
            margin-bottom: 0;
        }
        .timeline-item::before {
            content: '';
            position: absolute;
            left: -30px;
            top: 6px;
            width: 14px;
            height: 14px;
            background: var(--accent-orange);
            border-radius: 50%;
            border: 3px solid var(--paper);
            box-shadow: 0 0 0 2px var(--border-warm);
        }
        .timeline-item .tl-step {
            font-family: var(--font-mono);
            font-size: 12px;
            color: var(--accent-orange);
            letter-spacing: 0.1em;
            text-transform: uppercase;
            display: block;
            margin-bottom: 6px;
        }
        .timeline-item h3 {
            font-family: var(--font-heading);
            font-weight: 900;
            font-size: 20px;
            color: var(--charcoal);
            margin-bottom: 8px;
        }
        .timeline-item p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.8;
            max-width: 680px;
            margin-bottom: 0;
        }
        @media (max-width: 575.98px) {
            .timeline-wrap {
                padding-left: 20px;
            }
            .timeline-item {
                padding-left: 16px;
            }
            .timeline-item::before {
                left: -22px;
                width: 12px;
                height: 12px;
            }
            .timeline-item h3 {
                font-size: 17px;
            }
        }

        /* ===== 数据带 ===== */
        .data-band {
            background: var(--charcoal);
            color: var(--text-on-dark);
            padding: 48px 0;
        }
        .data-band-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
            align-items: center;
        }
        .data-band-item {
            text-align: center;
            padding: 16px 8px;
            border-right: 1px solid rgba(217, 210, 198, 0.16);
            transition: var(--transition);
        }
        .data-band-item:last-child {
            border-right: none;
        }
        .data-band-item:hover {
            background: rgba(255, 255, 255, 0.03);
            border-radius: var(--radius-sm);
        }
        .data-band-item .db-num {
            font-family: var(--font-western);
            font-size: 40px;
            font-weight: 700;
            color: var(--accent-lime);
            display: block;
            line-height: 1.2;
            letter-spacing: 0.02em;
        }
        .data-band-item .db-label {
            font-family: var(--font-mono);
            font-size: 13px;
            color: rgba(240, 237, 232, 0.7);
            letter-spacing: 0.06em;
            display: block;
            margin-top: 8px;
        }
        @media (max-width: 767.98px) {
            .data-band-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }
            .data-band-item {
                border-right: none;
                border-bottom: 1px solid rgba(217, 210, 198, 0.16);
                padding: 12px 4px;
            }
            .data-band-item:nth-child(odd) {
                border-right: 1px solid rgba(217, 210, 198, 0.16);
            }
            .data-band-item .db-num {
                font-size: 30px;
            }
        }
        @media (max-width: 575.98px) {
            .data-band {
                padding: 32px 0;
            }
            .data-band-item .db-num {
                font-size: 24px;
            }
            .data-band-item .db-label {
                font-size: 11px;
            }
        }

        /* ===== 近期评测摘要 ===== */
        .reviews-summary {
            background: var(--paper);
        }
        .review-list {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }
        .review-entry {
            display: grid;
            grid-template-columns: 200px 1fr;
            gap: 24px;
            background: #fff;
            border: 1px solid var(--border-warm);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: var(--transition);
        }
        .review-entry:hover {
            border-color: var(--accent-orange);
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }
        .review-entry .review-img {
            width: 100%;
            height: 100%;
            min-height: 160px;
            object-fit: cover;
        }
        .review-entry .review-body {
            padding: 20px 24px;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }
        .review-entry .review-tag {
            font-family: var(--font-mono);
            font-size: 11px;
            color: var(--accent-orange);
            letter-spacing: 0.08em;
            text-transform: uppercase;
            margin-bottom: 8px;
        }
        .review-entry h3 {
            font-family: var(--font-heading);
            font-weight: 900;
            font-size: 18px;
            color: var(--charcoal);
            margin-bottom: 8px;
        }
        .review-entry p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 0;
        }
        .review-entry .review-rating {
            display: flex;
            align-items: center;
            gap: 8px;
            margin-top: 10px;
            font-family: var(--font-mono);
            font-size: 13px;
            color: var(--text-muted);
        }
        .review-entry .review-rating .stars {
            color: var(--accent-orange);
            letter-spacing: 2px;
        }
        @media (max-width: 767.98px) {
            .review-entry {
                grid-template-columns: 1fr;
                gap: 0;
            }
            .review-entry .review-img {
                min-height: 200px;
                width: 100%;
            }
            .review-entry .review-body {
                padding: 16px 18px;
            }
        }

        /* ===== FAQ ===== */
        .faq-section {
            background: #fffdf9;
            border-top: 1px solid var(--border-light);
            border-bottom: 1px solid var(--border-light);
        }
        .faq-custom .accordion-item {
            background: #fff;
            border: 1px solid var(--border-warm);
            border-radius: var(--radius-sm) !important;
            margin-bottom: 12px;
            overflow: hidden;
        }
        .faq-custom .accordion-button {
            background: #fff;
            color: var(--charcoal);
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 16px;
            padding: 18px 20px;
            border: none;
            box-shadow: none;
            border-radius: 0 !important;
            transition: var(--transition);
        }
        .faq-custom .accordion-button:not(.collapsed) {
            background: var(--charcoal);
            color: #fff;
        }
        .faq-custom .accordion-button:focus {
            box-shadow: none;
            outline: 2px solid var(--accent-orange);
            outline-offset: -2px;
        }
        .faq-custom .accordion-button::after {
            background-image: none;
            content: '\f078';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            font-size: 14px;
            width: auto;
            height: auto;
            transform: none;
            color: var(--text-muted);
        }
        .faq-custom .accordion-button:not(.collapsed)::after {
            content: '\f077';
            color: var(--accent-lime);
            transform: none;
        }
        .faq-custom .accordion-body {
            padding: 16px 20px 20px;
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.8;
            border-left: 3px solid var(--accent-orange);
            margin-left: 16px;
            border-radius: 0;
        }
        .faq-custom .accordion-body p {
            margin-bottom: 0;
        }
        @media (max-width: 575.98px) {
            .faq-custom .accordion-button {
                font-size: 14px;
                padding: 14px 16px;
            }
            .faq-custom .accordion-body {
                font-size: 14px;
                padding: 12px 16px 16px;
                margin-left: 10px;
            }
        }

        /* ===== CTA区 ===== */
        .cta-section {
            background: var(--charcoal);
            color: var(--text-on-dark);
            padding: 64px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-section::after {
            content: '';
            position: absolute;
            top: -50%;
            right: -20%;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(255, 77, 0, 0.18), transparent 65%);
            pointer-events: none;
        }
        .cta-section .container-custom {
            position: relative;
            z-index: 1;
        }
        .cta-section h2 {
            font-family: var(--font-heading);
            font-weight: 900;
            font-size: 32px;
            color: #fff;
            margin-bottom: 16px;
        }
        .cta-section h2 span {
            color: var(--accent-lime);
        }
        .cta-section p {
            font-size: 16px;
            color: rgba(240, 237, 232, 0.78);
            max-width: 600px;
            margin: 0 auto 28px;
            line-height: 1.85;
        }
        .cta-section .cta-buttons {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }
        .cta-section .btn-cta-primary {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: var(--accent-orange);
            color: #fff;
            padding: 14px 32px;
            border-radius: var(--radius-sm);
            font-weight: 700;
            font-size: 16px;
            border: 2px solid var(--accent-orange);
            transition: var(--transition);
        }
        .cta-section .btn-cta-primary:hover {
            background: var(--accent-lime);
            border-color: var(--accent-lime);
            color: var(--charcoal);
        }
        .cta-section .btn-cta-secondary {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: transparent;
            color: #fff;
            padding: 14px 28px;
            border-radius: var(--radius-sm);
            font-weight: 700;
            font-size: 16px;
            border: 2px solid rgba(240, 237, 232, 0.4);
            transition: var(--transition);
        }
        .cta-section .btn-cta-secondary:hover {
            border-color: var(--accent-lime);
            color: var(--accent-lime);
        }
        @media (max-width: 575.98px) {
            .cta-section {
                padding: 44px 0;
            }
            .cta-section h2 {
                font-size: 24px;
            }
            .cta-section p {
                font-size: 14px;
            }
            .cta-section .btn-cta-primary,
            .cta-section .btn-cta-secondary {
                padding: 12px 22px;
                font-size: 14px;
            }
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--charcoal);
            color: rgba(240, 237, 232, 0.78);
            padding: 48px 0 24px;
            border-top: 1px solid rgba(217, 210, 198, 0.16);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 36px;
            margin-bottom: 36px;
        }
        .footer-brand .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-family: var(--font-heading);
            font-weight: 900;
            font-size: 22px;
            color: #fff;
            margin-bottom: 14px;
        }
        .footer-brand .footer-logo .logo-mark {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 32px;
            height: 32px;
            background: var(--accent-orange);
            color: #fff;
            font-size: 15px;
            font-weight: 900;
            border-radius: var(--radius-sm);
        }
        .footer-brand p {
            font-size: 14px;
            line-height: 1.8;
            color: rgba(240, 237, 232, 0.65);
            max-width: 360px;
            margin-bottom: 0;
        }
        .footer-col h4 {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 15px;
            color: #fff;
            margin-bottom: 14px;
            letter-spacing: 0.04em;
        }
        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-col ul li {
            margin-bottom: 8px;
        }
        .footer-col ul li a {
            font-size: 13px;
            color: rgba(240, 237, 232, 0.6);
            transition: var(--transition);
        }
        .footer-col ul li a:hover {
            color: var(--accent-lime);
            padding-left: 6px;
        }
        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 10px;
            padding-top: 20px;
            border-top: 1px solid rgba(217, 210, 198, 0.14);
            font-size: 12px;
            color: rgba(240, 237, 232, 0.5);
            font-family: var(--font-mono);
            letter-spacing: 0.04em;
        }
        .footer-bottom .footer-links {
            display: flex;
            gap: 16px;
        }
        .footer-bottom .footer-links a {
            color: rgba(240, 237, 232, 0.5);
            font-size: 12px;
            transition: var(--transition);
        }
        .footer-bottom .footer-links a:hover {
            color: var(--accent-lime);
        }
        .footer-back-top {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(255, 255, 255, 0.06);
            color: rgba(240, 237, 232, 0.7);
            border: 1px solid rgba(217, 210, 198, 0.2);
            border-radius: 999px;
            padding: 8px 16px;
            font-size: 12px;
            font-family: var(--font-body);
            cursor: pointer;
            transition: var(--transition);
        }
        .footer-back-top:hover {
            background: var(--accent-orange);
            color: #fff;
            border-color: var(--accent-orange);
        }
        @media (max-width: 991.98px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
        }
        @media (max-width: 575.98px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
            .site-footer {
                padding: 32px 0 16px;
            }
        }

/* roulang page: category3 */
:root {
            --charcoal: #141414;
            --graphite: #232323;
            --paper: #F2EFE9;
            --warm-gray: #D9D2C6;
            --accent-orange: #FF4D00;
            --accent-lime: #C6FF00;
            --text-primary: #1a1a1a;
            --text-secondary: #4a4a4a;
            --text-muted: #7a7a7a;
            --text-on-dark: #f0ede8;
            --border-light: #e3ddd2;
            --border-warm: #d9d2c6;
            --shadow-sm: 0 2px 8px rgba(20, 20, 20, 0.06);
            --shadow-md: 0 6px 16px rgba(20, 20, 20, 0.1);
            --shadow-lg: 0 12px 32px rgba(20, 20, 20, 0.14);
            --radius-sm: 2px;
            --radius-md: 4px;
            --radius-lg: 8px;
            --font-heading: 'Noto Sans SC', sans-serif;
            --font-western: 'Archivo Black', sans-serif;
            --font-mono: 'Space Mono', monospace;
            --font-body: 'Noto Sans SC', sans-serif;
            --transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            --container-max: 1200px;
            --section-padding: 72px;
            --section-gap: 60px;
            --nav-height-desktop: 136px;
            --nav-height-mobile: 120px;
        }
        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        body {
            font-family: var(--font-body);
            background-color: var(--paper);
            color: var(--text-primary);
            line-height: 1.75;
            font-size: 16px;
            overflow-x: hidden;
            letter-spacing: 0.02em;
        }
        a {
            color: var(--graphite);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--accent-orange);
            text-decoration: none;
        }
        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        select:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--accent-orange);
            outline-offset: 2px;
            border-radius: var(--radius-sm);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container-custom {
            max-width: var(--container-max);
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }
        @media (max-width: 576px) {
            .container-custom {
                padding-left: 16px;
                padding-right: 16px;
            }
        }

        /* ===== 顶部导航 ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1050;
            background-color: rgba(242, 239, 233, 0.96);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-light);
            transition: var(--transition);
        }
        .site-header.scrolled {
            box-shadow: 0 4px 16px rgba(20, 20, 20, 0.08);
            background-color: rgba(242, 239, 233, 0.99);
        }
        .brand-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 68px;
            gap: 16px;
        }
        .brand-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-family: var(--font-heading);
            font-weight: 900;
            font-size: 24px;
            color: var(--charcoal);
            letter-spacing: 0.04em;
            white-space: nowrap;
            flex-shrink: 0;
        }
        .brand-logo .logo-mark {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            background: var(--charcoal);
            color: var(--accent-lime);
            font-size: 18px;
            font-weight: 900;
            border-radius: var(--radius-sm);
            flex-shrink: 0;
        }
        .brand-logo:hover {
            color: var(--charcoal);
        }
        .brand-logo:hover .logo-mark {
            background: var(--accent-orange);
            color: #fff;
        }
        .brand-right {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }
        .search-form-desktop {
            display: flex;
            align-items: center;
            background: #fff;
            border: 1px solid var(--border-warm);
            border-radius: 999px;
            padding: 0 0 0 16px;
            height: 40px;
            transition: var(--transition);
            min-width: 240px;
        }
        .search-form-desktop:focus-within {
            border-color: var(--accent-orange);
            box-shadow: 0 0 0 3px rgba(255, 77, 0, 0.12);
        }
        .search-form-desktop input {
            border: none;
            outline: none;
            background: transparent;
            padding: 8px 8px 8px 4px;
            font-size: 14px;
            color: var(--text-primary);
            width: 100%;
            font-family: var(--font-body);
        }
        .search-form-desktop input::placeholder {
            color: var(--text-muted);
            font-size: 13px;
        }
        .search-form-desktop .search-btn {
            background: none;
            border: none;
            padding: 0 14px;
            color: var(--text-muted);
            cursor: pointer;
            transition: var(--transition);
            height: 100%;
            display: flex;
            align-items: center;
            font-size: 14px;
            border-radius: 0 999px 999px 0;
        }
        .search-form-desktop .search-btn:hover {
            color: var(--accent-orange);
        }
        .btn-brand {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--accent-orange);
            color: #fff;
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 14px;
            padding: 10px 20px;
            border-radius: var(--radius-sm);
            border: 2px solid var(--accent-orange);
            transition: var(--transition);
            white-space: nowrap;
            cursor: pointer;
            line-height: 1.4;
        }
        .btn-brand:hover {
            background: transparent;
            color: var(--accent-orange);
        }
        .btn-brand .arrow {
            transition: transform 0.3s ease;
        }
        .btn-brand:hover .arrow {
            transform: translateX(4px);
        }

        /* 第二行：频道Tabs */
        .channel-row {
            border-top: 1px solid var(--border-light);
            padding: 0;
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: none;
            -ms-overflow-style: none;
        }
        .channel-row::-webkit-scrollbar {
            display: none;
        }
        .channel-tabs {
            display: flex;
            align-items: center;
            gap: 4px;
            min-width: max-content;
            padding: 8px 0;
            flex-wrap: nowrap;
        }
        .channel-tab {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 16px;
            font-family: var(--font-heading);
            font-weight: 500;
            font-size: 14px;
            color: var(--text-secondary);
            border-radius: 999px;
            transition: var(--transition);
            white-space: nowrap;
            cursor: pointer;
            border: 1px solid transparent;
            position: relative;
        }
        .channel-tab:hover {
            color: var(--accent-orange);
            background: rgba(255, 77, 0, 0.05);
        }
        .channel-tab.active {
            background: var(--charcoal);
            color: #fff;
            font-weight: 700;
            border-color: var(--charcoal);
        }
        .channel-tab .tab-dot {
            display: inline-block;
            width: 6px;
            height: 6px;
            border-radius: 50%;
        }
        .channel-tab.active .tab-dot {
            background: var(--accent-lime);
        }

        /* ===== Hero ===== */
        .hero-section {
            padding: 48px 0 56px;
            background: var(--paper);
            border-bottom: 1px solid var(--border-light);
        }
        .hero-grid {
            display: grid;
            grid-template-columns: 1fr 0.85fr;
            gap: 40px;
            align-items: center;
        }
        .hero-content {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }
        .hero-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            align-self: flex-start;
            background: var(--charcoal);
            color: var(--accent-lime);
            font-family: var(--font-mono);
            font-size: 12px;
            font-weight: 700;
            padding: 6px 14px;
            border-radius: 999px;
            letter-spacing: 0.08em;
        }
        .hero-title {
            font-family: var(--font-heading);
            font-weight: 900;
            font-size: 42px;
            line-height: 1.2;
            color: var(--charcoal);
            margin: 0;
            letter-spacing: 0.02em;
        }
        .hero-subtitle {
            font-size: 17px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin: 0;
            max-width: 520px;
        }
        .hero-meta-bar {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
            font-family: var(--font-mono);
            font-size: 12px;
            color: var(--text-muted);
            letter-spacing: 0.05em;
            border-top: 1px solid var(--border-light);
            padding-top: 14px;
        }
        .hero-meta-bar .meta-item {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .hero-meta-bar .meta-sep {
            width: 4px;
            height: 4px;
            border-radius: 50%;
            background: var(--warm-gray);
        }

        /* 拼团转化 */
        .group-buy-box {
            background: #fff;
            border: 1px solid var(--border-warm);
            border-radius: var(--radius-md);
            padding: 20px 22px;
            display: flex;
            flex-direction: column;
            gap: 14px;
            max-width: 480px;
        }
        .group-buy-progress-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            flex-wrap: wrap;
        }
        .group-buy-label {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 15px;
            color: var(--charcoal);
        }
        .group-buy-count {
            font-family: var(--font-mono);
            font-size: 13px;
            color: var(--accent-orange);
            font-weight: 700;
            background: rgba(255, 77, 0, 0.08);
            padding: 4px 12px;
            border-radius: 999px;
            white-space: nowrap;
        }
        .progress {
            height: 8px;
            background: var(--paper);
            border-radius: 999px;
            overflow: hidden;
            box-shadow: none;
        }
        .progress-bar {
            background: var(--accent-orange);
            border-radius: 999px;
            transition: width 0.5s ease;
        }
        .group-buy-info {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-muted);
            flex-wrap: wrap;
        }
        .group-buy-info .dot {
            width: 4px;
            height: 4px;
            border-radius: 50%;
            background: var(--warm-gray);
            flex-shrink: 0;
        }
        .group-buy-actions {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }
        .btn-primary-group {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--accent-orange);
            color: #fff;
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 15px;
            padding: 12px 28px;
            border-radius: var(--radius-sm);
            border: 2px solid var(--accent-orange);
            transition: var(--transition);
            cursor: pointer;
            line-height: 1.4;
        }
        .btn-primary-group:hover {
            background: transparent;
            color: var(--accent-orange);
        }
        .btn-primary-group .arrow {
            transition: transform 0.3s ease;
        }
        .btn-primary-group:hover .arrow {
            transform: translateX(4px);
        }
        .btn-secondary-group {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: transparent;
            color: var(--charcoal);
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 15px;
            padding: 12px 28px;
            border-radius: var(--radius-sm);
            border: 2px solid var(--charcoal);
            transition: var(--transition);
            cursor: pointer;
            line-height: 1.4;
        }
        .btn-secondary-group:hover {
            background: var(--charcoal);
            color: #fff;
        }

        .hero-image-wrap {
            position: relative;
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--border-warm);
            aspect-ratio: 4/3;
            background: var(--graphite);
        }
        .hero-image-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.6s ease;
        }
        .hero-image-wrap:hover img {
            transform: scale(1.03);
        }
        .hero-image-badge {
            position: absolute;
            bottom: 16px;
            left: 16px;
            background: rgba(20, 20, 20, 0.88);
            color: var(--accent-lime);
            font-family: var(--font-mono);
            font-size: 11px;
            padding: 6px 12px;
            border-radius: var(--radius-sm);
            letter-spacing: 0.06em;
        }

        /* ===== 板块通用 ===== */
        .section-block {
            padding: var(--section-padding) 0;
            border-bottom: 1px solid var(--border-light);
        }
        .section-block.alt-bg {
            background: #ebe8e1;
        }
        .section-block.dark-bg {
            background: var(--charcoal);
            color: var(--text-on-dark);
            border-bottom: none;
        }
        .section-head {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            gap: 24px;
            margin-bottom: 32px;
            flex-wrap: wrap;
        }
        .section-head-left {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .section-label {
            font-family: var(--font-mono);
            font-size: 12px;
            font-weight: 700;
            color: var(--accent-orange);
            letter-spacing: 0.08em;
            text-transform: uppercase;
        }
        .section-title {
            font-family: var(--font-heading);
            font-weight: 900;
            font-size: 30px;
            color: var(--charcoal);
            line-height: 1.3;
            margin: 0;
            letter-spacing: 0.02em;
        }
        .dark-bg .section-title {
            color: var(--text-on-dark);
        }
        .section-head-note {
            font-size: 15px;
            color: var(--text-secondary);
            max-width: 420px;
            line-height: 1.7;
        }
        .dark-bg .section-head-note {
            color: rgba(240, 237, 232, 0.7);
        }

        /* ===== 资源图录网格 ===== */
        .resource-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .resource-card {
            background: #fff;
            border: 1px solid var(--border-warm);
            border-radius: var(--radius-sm);
            overflow: hidden;
            transition: var(--transition);
            display: flex;
            flex-direction: column;
            position: relative;
        }
        .resource-card:hover {
            border-color: var(--accent-orange);
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }
        .resource-card .card-img {
            aspect-ratio: 16/9;
            overflow: hidden;
            background: var(--graphite);
            position: relative;
        }
        .resource-card .card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .resource-card:hover .card-img img {
            transform: scale(1.05);
        }
        .resource-card .card-category {
            position: absolute;
            top: 12px;
            left: 12px;
            background: rgba(20, 20, 20, 0.85);
            color: var(--accent-lime);
            font-family: var(--font-mono);
            font-size: 11px;
            font-weight: 700;
            padding: 4px 10px;
            border-radius: 999px;
            letter-spacing: 0.06em;
            z-index: 2;
        }
        .resource-card .card-body {
            padding: 18px 20px 20px;
            display: flex;
            flex-direction: column;
            gap: 10px;
            flex: 1;
        }
        .resource-card .card-title {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 18px;
            color: var(--charcoal);
            margin: 0;
            line-height: 1.4;
        }
        .resource-card .card-desc {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin: 0;
            flex: 1;
        }
        .resource-card .card-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            font-family: var(--font-mono);
            font-size: 12px;
            color: var(--text-muted);
            border-top: 1px solid var(--border-light);
            padding-top: 12px;
            flex-wrap: wrap;
        }
        .resource-card .card-meta .meta-tag {
            background: rgba(255, 77, 0, 0.07);
            color: var(--accent-orange);
            padding: 2px 8px;
            border-radius: 999px;
            font-weight: 700;
            font-size: 11px;
        }
        .resource-card-large {
            grid-column: span 2;
        }
        .resource-card-large .card-img {
            aspect-ratio: 21/9;
        }
        @media (max-width: 992px) {
            .resource-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .resource-card-large {
                grid-column: span 2;
            }
        }
        @media (max-width: 576px) {
            .resource-grid {
                grid-template-columns: 1fr;
            }
            .resource-card-large {
                grid-column: span 1;
            }
            .resource-card-large .card-img {
                aspect-ratio: 16/9;
            }
        }

        /* ===== 卖点板块 ===== */
        .benefit-list {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }
        .benefit-item {
            display: flex;
            gap: 16px;
            padding: 20px 22px;
            background: #fff;
            border: 1px solid var(--border-warm);
            border-radius: var(--radius-sm);
            transition: var(--transition);
        }
        .benefit-item:hover {
            border-color: var(--accent-orange);
            box-shadow: var(--shadow-sm);
        }
        .benefit-icon {
            width: 44px;
            height: 44px;
            background: var(--charcoal);
            color: var(--accent-lime);
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: var(--radius-sm);
            font-size: 18px;
            flex-shrink: 0;
        }
        .benefit-item .benefit-text {
            display: flex;
            flex-direction: column;
            gap: 6px;
        }
        .benefit-item .benefit-title {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 16px;
            color: var(--charcoal);
            margin: 0;
        }
        .benefit-item .benefit-desc {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.65;
            margin: 0;
        }
        @media (max-width: 768px) {
            .benefit-list {
                grid-template-columns: 1fr;
            }
        }

        /* ===== 适用场景 ===== */
        .scenario-list {
            display: flex;
            flex-direction: column;
            gap: 0;
            border: 1px solid var(--border-warm);
            border-radius: var(--radius-sm);
            overflow: hidden;
            background: #fff;
        }
        .scenario-item {
            display: flex;
            align-items: flex-start;
            gap: 18px;
            padding: 18px 22px;
            border-bottom: 1px solid var(--border-light);
            transition: var(--transition);
            cursor: default;
        }
        .scenario-item:last-child {
            border-bottom: none;
        }
        .scenario-item:hover {
            background: rgba(255, 77, 0, 0.03);
            padding-left: 28px;
        }
        .scenario-num {
            font-family: var(--font-mono);
            font-size: 14px;
            font-weight: 700;
            color: var(--accent-orange);
            width: 40px;
            flex-shrink: 0;
            padding-top: 2px;
        }
        .scenario-content {
            display: flex;
            flex-direction: column;
            gap: 4px;
            flex: 1;
        }
        .scenario-content .scenario-title {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 16px;
            color: var(--charcoal);
            margin: 0;
        }
        .scenario-content .scenario-desc {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.65;
            margin: 0;
        }
        .scenario-tag {
            background: var(--charcoal);
            color: var(--accent-lime);
            font-family: var(--font-mono);
            font-size: 11px;
            padding: 3px 10px;
            border-radius: 999px;
            font-weight: 700;
            white-space: nowrap;
            align-self: flex-start;
            margin-top: 4px;
        }

        /* ===== 流程步骤 ===== */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
        }
        .step-card {
            background: #fff;
            border: 1px solid var(--border-warm);
            border-radius: var(--radius-sm);
            padding: 22px 18px;
            display: flex;
            flex-direction: column;
            gap: 12px;
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }
        .step-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: var(--accent-orange);
            transform: scaleX(0);
            transform-origin: left;
            transition: transform 0.4s ease;
        }
        .step-card:hover::before {
            transform: scaleX(1);
        }
        .step-card:hover {
            border-color: var(--accent-orange);
            box-shadow: var(--shadow-sm);
            transform: translateY(-2px);
        }
        .step-num {
            font-family: var(--font-mono);
            font-size: 36px;
            font-weight: 700;
            color: var(--accent-orange);
            line-height: 1;
            letter-spacing: -0.02em;
        }
        .step-title {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 16px;
            color: var(--charcoal);
            margin: 0;
        }
        .step-desc {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.65;
            margin: 0;
        }
        @media (max-width: 992px) {
            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 576px) {
            .steps-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ===== FAQ ===== */
        .accordion-custom .accordion-item {
            background: #fff;
            border: 1px solid var(--border-warm);
            border-radius: var(--radius-sm) !important;
            margin-bottom: 10px;
            overflow: hidden;
        }
        .accordion-custom .accordion-button {
            background: #fff;
            color: var(--charcoal);
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 15px;
            padding: 18px 22px;
            border: none;
            box-shadow: none;
            transition: var(--transition);
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .accordion-custom .accordion-button:not(.collapsed) {
            background: var(--charcoal);
            color: #fff;
            box-shadow: none;
        }
        .accordion-custom .accordion-button::after {
            content: '\f078';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            background-image: none;
            font-size: 12px;
            transition: transform 0.4s ease;
            color: var(--accent-orange);
            flex-shrink: 0;
        }
        .accordion-custom .accordion-button:not(.collapsed)::after {
            transform: rotate(180deg);
            color: var(--accent-lime);
        }
        .accordion-custom .accordion-button .faq-num {
            font-family: var(--font-mono);
            font-size: 12px;
            font-weight: 700;
            color: var(--accent-orange);
            flex-shrink: 0;
        }
        .accordion-custom .accordion-button:not(.collapsed) .faq-num {
            color: var(--accent-lime);
        }
        .accordion-custom .accordion-body {
            padding: 16px 22px 20px;
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.75;
            border-left: 3px solid var(--accent-orange);
            margin-left: 22px;
            margin-right: 22px;
            margin-bottom: 16px;
            background: #faf8f4;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
        }
        .accordion-custom .accordion-button:focus {
            box-shadow: none;
            outline: 2px solid var(--accent-orange);
            outline-offset: -2px;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: var(--charcoal);
            padding: 64px 0;
            border-bottom: none;
        }
        .cta-inner {
            display: flex;
            flex-direction: column;
            align-items: center;
            text-align: center;
            gap: 20px;
            max-width: 680px;
            margin: 0 auto;
        }
        .cta-title {
            font-family: var(--font-heading);
            font-weight: 900;
            font-size: 34px;
            color: #fff;
            margin: 0;
            line-height: 1.3;
        }
        .cta-desc {
            font-size: 16px;
            color: rgba(240, 237, 232, 0.72);
            line-height: 1.7;
            margin: 0;
            max-width: 520px;
        }
        .cta-actions {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
            justify-content: center;
            margin-top: 8px;
        }
        .btn-cta-main {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--accent-orange);
            color: #fff;
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 16px;
            padding: 14px 32px;
            border-radius: var(--radius-sm);
            border: 2px solid var(--accent-orange);
            transition: var(--transition);
            cursor: pointer;
            line-height: 1.4;
        }
        .btn-cta-main:hover {
            background: transparent;
            color: var(--accent-orange);
        }
        .btn-cta-secondary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: transparent;
            color: #fff;
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 16px;
            padding: 14px 32px;
            border-radius: var(--radius-sm);
            border: 2px solid rgba(240, 237, 232, 0.5);
            transition: var(--transition);
            cursor: pointer;
            line-height: 1.4;
        }
        .btn-cta-secondary:hover {
            background: rgba(240, 237, 232, 0.1);
            border-color: #fff;
            color: #fff;
        }
        .cta-meta {
            font-family: var(--font-mono);
            font-size: 12px;
            color: rgba(240, 237, 232, 0.5);
            letter-spacing: 0.06em;
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--graphite);
            color: var(--text-on-dark);
            padding: 56px 0 24px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.8fr 1fr 1fr 1.2fr;
            gap: 32px;
            margin-bottom: 40px;
        }
        .footer-brand {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }
        .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-family: var(--font-heading);
            font-weight: 900;
            font-size: 22px;
            color: #fff;
        }
        .footer-logo .logo-mark {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 32px;
            height: 32px;
            background: var(--charcoal);
            color: var(--accent-lime);
            font-size: 16px;
            font-weight: 900;
            border-radius: var(--radius-sm);
        }
        .footer-brand p {
            font-size: 14px;
            color: rgba(240, 237, 232, 0.65);
            line-height: 1.7;
            margin: 0;
            max-width: 320px;
        }
        .footer-col h4 {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 15px;
            color: var(--accent-lime);
            margin: 0 0 14px;
            letter-spacing: 0.04em;
        }
        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .footer-col ul li a {
            color: rgba(240, 237, 232, 0.7);
            font-size: 14px;
            transition: var(--transition);
        }
        .footer-col ul li a:hover {
            color: var(--accent-orange);
            padding-left: 4px;
        }
        .footer-bottom {
            border-top: 1px solid rgba(240, 237, 232, 0.15);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            align-items: center;
            justify-content: space-between;
            font-size: 12px;
            color: rgba(240, 237, 232, 0.5);
            font-family: var(--font-mono);
        }
        .footer-bottom .footer-links {
            display: flex;
            gap: 14px;
            align-items: center;
        }
        .footer-bottom .footer-links a {
            color: rgba(240, 237, 232, 0.7);
            font-size: 12px;
            transition: var(--transition);
        }
        .footer-bottom .footer-links a:hover {
            color: var(--accent-orange);
        }
        .footer-back-top {
            background: var(--accent-orange);
            color: #fff;
            border: none;
            padding: 8px 16px;
            border-radius: var(--radius-sm);
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 13px;
            cursor: pointer;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .footer-back-top:hover {
            background: var(--accent-lime);
            color: var(--charcoal);
        }
        @media (max-width: 992px) {
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 24px;
            }
        }
        @media (max-width: 576px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
        }

        /* ===== 响应式 ===== */
        @media (max-width: 992px) {
            .hero-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .hero-image-wrap {
                aspect-ratio: 16/9;
                order: -1;
            }
            .hero-title {
                font-size: 34px;
            }
            .section-title {
                font-size: 26px;
            }
            .section-padding {
                padding: 52px 0;
            }
            :root {
                --section-padding: 52px;
            }
        }
        @media (max-width: 768px) {
            .brand-row {
                height: 60px;
            }
            .brand-logo {
                font-size: 20px;
            }
            .brand-logo .logo-mark {
                width: 30px;
                height: 30px;
                font-size: 15px;
            }
            .search-form-desktop {
                min-width: 160px;
                height: 36px;
                padding-left: 12px;
            }
            .search-form-desktop input {
                font-size: 12px;
            }
            .btn-brand {
                font-size: 12px;
                padding: 8px 14px;
            }
            .channel-tab {
                padding: 6px 12px;
                font-size: 13px;
            }
            .hero-section {
                padding: 32px 0 40px;
            }
            .hero-title {
                font-size: 28px;
            }
            .hero-subtitle {
                font-size: 15px;
            }
            .group-buy-box {
                padding: 16px;
            }
            .btn-primary-group,
            .btn-secondary-group {
                font-size: 14px;
                padding: 10px 20px;
            }
            .cta-title {
                font-size: 26px;
            }
            .cta-section {
                padding: 48px 0;
            }
        }
        @media (max-width: 576px) {
            :root {
                --section-padding: 40px;
                --section-gap: 32px;
            }
            .brand-row {
                height: 56px;
                gap: 8px;
            }
            .brand-logo {
                font-size: 18px;
                gap: 6px;
            }
            .brand-logo .logo-mark {
                width: 26px;
                height: 26px;
                font-size: 13px;
            }
            .search-form-desktop {
                min-width: 120px;
                height: 32px;
                padding-left: 8px;
                border-radius: 8px;
            }
            .search-form-desktop input {
                font-size: 11px;
                padding: 4px;
            }
            .search-form-desktop .search-btn {
                padding: 0 8px;
                font-size: 12px;
            }
            .btn-brand {
                font-size: 11px;
                padding: 6px 10px;
                gap: 4px;
            }
            .channel-tab {
                padding: 5px 10px;
                font-size: 12px;
                gap: 4px;
            }
            .hero-title {
                font-size: 24px;
            }
            .hero-subtitle {
                font-size: 14px;
                line-height: 1.7;
            }
            .hero-meta-bar {
                font-size: 10px;
                gap: 8px;
            }
            .section-title {
                font-size: 22px;
            }
            .group-buy-actions {
                flex-direction: column;
                gap: 8px;
            }
            .btn-primary-group,
            .btn-secondary-group {
                width: 100%;
                justify-content: center;
            }
            .cta-title {
                font-size: 22px;
            }
            .cta-desc {
                font-size: 14px;
            }
            .btn-cta-main,
            .btn-cta-secondary {
                width: 100%;
                justify-content: center;
                font-size: 14px;
                padding: 12px 20px;
            }
        }

/* roulang page: category5 */
:root {
            --charcoal: #141414;
            --graphite: #232323;
            --paper: #F2EFE9;
            --warm-gray: #D9D2C6;
            --accent-orange: #FF4D00;
            --accent-lime: #C6FF00;
            --text-primary: #1a1a1a;
            --text-secondary: #4a4a4a;
            --text-muted: #7a7a7a;
            --text-on-dark: #f0ede8;
            --border-light: #e3ddd2;
            --border-warm: #d9d2c6;
            --shadow-sm: 0 2px 8px rgba(20, 20, 20, 0.06);
            --shadow-md: 0 6px 16px rgba(20, 20, 20, 0.1);
            --shadow-lg: 0 12px 32px rgba(20, 20, 20, 0.14);
            --radius-sm: 2px;
            --radius-md: 4px;
            --radius-lg: 8px;
            --font-heading: 'Noto Sans SC', sans-serif;
            --font-western: 'Archivo Black', sans-serif;
            --font-mono: 'Space Mono', monospace;
            --font-body: 'Noto Sans SC', sans-serif;
            --transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            --container-max: 1200px;
            --section-padding: 72px;
            --section-gap: 60px;
            --nav-height-desktop: 136px;
            --nav-height-mobile: 120px;
        }

        * {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-body);
            background-color: var(--paper);
            color: var(--text-primary);
            line-height: 1.75;
            font-size: 16px;
            overflow-x: hidden;
            letter-spacing: 0.02em;
            margin: 0;
            padding: 0;
        }

        a {
            color: var(--graphite);
            text-decoration: none;
            transition: var(--transition);
        }

        a:hover {
            color: var(--accent-orange);
            text-decoration: none;
        }

        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        select:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--accent-orange);
            outline-offset: 2px;
            border-radius: var(--radius-sm);
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        .container-custom {
            max-width: var(--container-max);
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        @media (max-width: 576px) {
            .container-custom {
                padding-left: 16px;
                padding-right: 16px;
            }
        }

        /* ===== 顶部导航 ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1050;
            background-color: rgba(242, 239, 233, 0.96);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-light);
            transition: var(--transition);
        }

        .site-header.scrolled {
            box-shadow: 0 4px 16px rgba(20, 20, 20, 0.08);
            background-color: rgba(242, 239, 233, 0.99);
        }

        .brand-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 68px;
            gap: 16px;
        }

        .brand-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-family: var(--font-heading);
            font-weight: 900;
            font-size: 24px;
            color: var(--charcoal);
            letter-spacing: 0.04em;
            white-space: nowrap;
            flex-shrink: 0;
        }

        .brand-logo .logo-mark {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            background: var(--charcoal);
            color: var(--accent-lime);
            font-size: 18px;
            font-weight: 900;
            border-radius: var(--radius-sm);
            flex-shrink: 0;
        }

        .brand-logo:hover {
            color: var(--charcoal);
        }

        .brand-logo:hover .logo-mark {
            background: var(--accent-orange);
            color: #fff;
        }

        .brand-right {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }

        .search-form-desktop {
            display: flex;
            align-items: center;
            background: #fff;
            border: 1px solid var(--border-warm);
            border-radius: 999px;
            padding: 0 0 0 16px;
            height: 40px;
            transition: var(--transition);
            min-width: 240px;
        }

        .search-form-desktop:focus-within {
            border-color: var(--accent-orange);
            box-shadow: 0 0 0 3px rgba(255, 77, 0, 0.12);
        }

        .search-form-desktop input {
            border: none;
            outline: none;
            background: transparent;
            padding: 8px 8px 8px 4px;
            font-size: 14px;
            color: var(--text-primary);
            width: 100%;
            font-family: var(--font-body);
        }

        .search-form-desktop input::placeholder {
            color: var(--text-muted);
            font-size: 13px;
        }

        .search-form-desktop .search-btn {
            background: none;
            border: none;
            padding: 0 14px;
            color: var(--text-muted);
            cursor: pointer;
            transition: var(--transition);
            height: 100%;
            display: flex;
            align-items: center;
            font-size: 14px;
            border-radius: 0 999px 999px 0;
        }

        .search-form-desktop .search-btn:hover {
            color: var(--accent-orange);
        }

        .btn-brand {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--accent-orange);
            color: #fff;
            border: none;
            border-radius: var(--radius-sm);
            padding: 10px 20px;
            font-weight: 700;
            font-size: 14px;
            font-family: var(--font-heading);
            letter-spacing: 0.03em;
            transition: var(--transition);
            white-space: nowrap;
            flex-shrink: 0;
            cursor: pointer;
        }

        .btn-brand:hover {
            background: var(--charcoal);
            color: var(--accent-lime);
            transform: translateX(2px);
        }

        .btn-brand .arrow {
            transition: var(--transition);
        }

        .btn-brand:hover .arrow {
            transform: translateX(4px);
        }

        .channel-row {
            border-top: 1px solid var(--border-light);
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: none;
            -ms-overflow-style: none;
        }

        .channel-row::-webkit-scrollbar {
            display: none;
        }

        .channel-tabs {
            display: flex;
            align-items: center;
            gap: 4px;
            padding: 0;
            min-width: max-content;
            height: 52px;
        }

        .channel-tab {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 10px 16px;
            font-size: 14px;
            font-weight: 500;
            font-family: var(--font-heading);
            color: var(--text-secondary);
            border-radius: 999px;
            transition: var(--transition);
            white-space: nowrap;
            position: relative;
        }

        .channel-tab:hover {
            color: var(--accent-orange);
            background: rgba(255, 77, 0, 0.06);
        }

        .channel-tab.active {
            color: #fff;
            background: var(--charcoal);
            font-weight: 700;
        }

        .channel-tab.active .tab-dot {
            display: inline-block;
            width: 6px;
            height: 6px;
            background: var(--accent-lime);
            border-radius: 50%;
            margin-left: 2px;
        }

        .tab-dot {
            display: none;
        }

        @media (max-width: 768px) {
            .brand-row {
                height: 58px;
            }

            .brand-logo {
                font-size: 20px;
            }

            .brand-logo .logo-mark {
                width: 30px;
                height: 30px;
                font-size: 14px;
            }

            .search-form-desktop {
                min-width: 150px;
                height: 36px;
                padding: 0 0 0 12px;
            }

            .search-form-desktop input {
                font-size: 12px;
            }

            .btn-brand {
                padding: 8px 14px;
                font-size: 12px;
                gap: 4px;
            }

            .btn-brand i.fa-arrow-right {
                display: none;
            }

            .channel-row {
                height: 48px;
            }

            .channel-tab {
                padding: 8px 12px;
                font-size: 13px;
            }
        }

        @media (max-width: 576px) {
            .brand-right .search-form-desktop {
                display: none;
            }

            .brand-row {
                gap: 8px;
            }

            .channel-tab {
                padding: 8px 10px;
                font-size: 12px;
                gap: 4px;
            }
        }

        /* ===== 通用板块 ===== */
        .section {
            padding: var(--section-padding) 0;
            position: relative;
        }

        .section-label {
            font-family: var(--font-mono);
            font-size: 12px;
            font-weight: 700;
            letter-spacing: 0.12em;
            text-transform: uppercase;
            color: var(--accent-orange);
            display: block;
            margin-bottom: 12px;
        }

        .section-title {
            font-family: var(--font-heading);
            font-weight: 900;
            font-size: 32px;
            color: var(--charcoal);
            margin-bottom: 16px;
            line-height: 1.3;
            letter-spacing: 0.01em;
        }

        .section-subtitle {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.85;
            max-width: 720px;
        }

        @media (max-width: 768px) {
            .section {
                padding: 48px 0;
            }

            .section-title {
                font-size: 24px;
            }

            .section-subtitle {
                font-size: 14px;
            }
        }

        /* ===== Hero ===== */
        .member-hero {
            position: relative;
            background: var(--charcoal);
            color: var(--text-on-dark);
            padding: 64px 0 80px;
            overflow: hidden;
            border-bottom: 1px solid var(--border-light);
        }

        .member-hero::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: linear-gradient(135deg, rgba(20, 20, 20, 0.92) 0%, rgba(20, 20, 20, 0.65) 50%, rgba(20, 20, 20, 0.88) 100%);
            z-index: 1;
        }

        .member-hero .container-custom {
            position: relative;
            z-index: 2;
        }

        .hero-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }

        .hero-content {
            padding-right: 8px;
        }

        .hero-tagline {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-wrap: wrap;
            margin-bottom: 20px;
        }

        .hero-tagline .badge-new {
            background: var(--accent-lime);
            color: var(--charcoal);
            font-weight: 700;
            font-size: 11px;
            font-family: var(--font-mono);
            padding: 4px 10px;
            border-radius: 999px;
            letter-spacing: 0.08em;
        }

        .hero-tagline .badge-scene {
            background: rgba(255, 77, 0, 0.2);
            color: var(--accent-orange);
            font-weight: 500;
            font-size: 11px;
            font-family: var(--font-mono);
            padding: 4px 10px;
            border-radius: 999px;
            letter-spacing: 0.08em;
        }

        .hero-tagline .badge-status {
            color: var(--text-muted);
            font-size: 11px;
            font-family: var(--font-mono);
            letter-spacing: 0.08em;
        }

        .hero-title {
            font-family: var(--font-heading);
            font-weight: 900;
            font-size: 44px;
            color: #fff;
            line-height: 1.25;
            margin-bottom: 20px;
            letter-spacing: 0.01em;
        }

        .hero-title .highlight {
            color: var(--accent-lime);
            border-bottom: 3px solid var(--accent-orange);
            display: inline-block;
            padding-bottom: 2px;
        }

        .hero-desc {
            font-size: 16px;
            color: rgba(240, 237, 232, 0.8);
            line-height: 1.9;
            margin-bottom: 28px;
            max-width: 520px;
        }

        .hero-meta-row {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
            margin-bottom: 28px;
        }

        .hero-meta-item {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: rgba(240, 237, 232, 0.7);
            font-family: var(--font-mono);
            letter-spacing: 0.04em;
        }

        .hero-meta-item i {
            color: var(--accent-lime);
            font-size: 12px;
        }

        .hero-actions {
            display: flex;
            align-items: center;
            gap: 14px;
            flex-wrap: wrap;
        }

        .btn-primary-brand {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: var(--accent-orange);
            color: #fff;
            border: none;
            border-radius: var(--radius-sm);
            padding: 14px 28px;
            font-weight: 700;
            font-size: 16px;
            font-family: var(--font-heading);
            letter-spacing: 0.03em;
            transition: var(--transition);
            cursor: pointer;
        }

        .btn-primary-brand:hover {
            background: var(--accent-lime);
            color: var(--charcoal);
            transform: translateX(4px);
        }

        .btn-outline-brand {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: transparent;
            color: #fff;
            border: 1px solid rgba(255, 255, 255, 0.3);
            border-radius: var(--radius-sm);
            padding: 14px 24px;
            font-weight: 500;
            font-size: 15px;
            font-family: var(--font-heading);
            letter-spacing: 0.03em;
            transition: var(--transition);
            cursor: pointer;
        }

        .btn-outline-brand:hover {
            border-color: var(--accent-lime);
            color: var(--accent-lime);
        }

        .hero-visual {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
            aspect-ratio: 16 / 10;
        }

        .hero-visual img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.6s ease;
        }

        .hero-visual:hover img {
            transform: scale(1.03);
        }

        .hero-visual::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 100%;
            height: 40%;
            background: linear-gradient(0deg, rgba(20, 20, 20, 0.7) 0%, transparent 100%);
            pointer-events: none;
        }

        .countdown-ring {
            position: absolute;
            bottom: 16px;
            right: 16px;
            width: 80px;
            height: 80px;
            border-radius: 50%;
            background: rgba(20, 20, 20, 0.85);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-direction: column;
            z-index: 3;
            border: 2px solid var(--accent-lime);
        }

        .countdown-ring .count-number {
            font-family: var(--font-mono);
            font-weight: 700;
            font-size: 24px;
            color: var(--accent-lime);
            line-height: 1;
        }

        .countdown-ring .count-label {
            font-size: 9px;
            color: rgba(240, 237, 232, 0.7);
            letter-spacing: 0.08em;
            margin-top: 2px;
            font-family: var(--font-mono);
        }

        .sell-point-dots {
            position: absolute;
            bottom: 16px;
            left: 16px;
            display: flex;
            gap: 8px;
            z-index: 3;
        }

        .sell-dot {
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.3);
            transition: var(--transition);
            cursor: pointer;
        }

        .sell-dot.active {
            background: var(--accent-orange);
            transform: scale(1.3);
        }

        @media (max-width: 992px) {
            .hero-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }

            .hero-title {
                font-size: 34px;
            }

            .hero-desc {
                max-width: 100%;
            }
        }

        @media (max-width: 576px) {
            .member-hero {
                padding: 40px 0 56px;
            }

            .hero-title {
                font-size: 26px;
            }

            .hero-desc {
                font-size: 14px;
            }

            .hero-actions {
                flex-direction: column;
                align-items: stretch;
            }

            .btn-primary-brand,
            .btn-outline-brand {
                justify-content: center;
                width: 100%;
            }

            .countdown-ring {
                width: 60px;
                height: 60px;
                bottom: 12px;
                right: 12px;
            }

            .countdown-ring .count-number {
                font-size: 18px;
            }
        }

        /* ===== 会员权益卡片区 ===== */
        .benefit-section {
            background: var(--paper);
        }

        .benefit-grid {
            display: grid;
            grid-template-columns: repeat(12, 1fr);
            gap: 20px;
            margin-top: 40px;
        }

        .benefit-card {
            background: #fff;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            padding: 28px 24px;
            transition: var(--transition);
            position: relative;
            grid-column: span 4;
        }

        .benefit-card:hover {
            border-color: var(--accent-orange);
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
        }

        .benefit-card:nth-child(1) {
            grid-column: span 6;
            background: var(--charcoal);
            color: var(--text-on-dark);
            border-color: var(--charcoal);
        }

        .benefit-card:nth-child(1):hover {
            border-color: var(--accent-orange);
        }

        .benefit-card:nth-child(2) {
            grid-column: span 6;
            background: #fff;
        }

        .benefit-card:nth-child(3),
        .benefit-card:nth-child(4) {
            grid-column: span 3;
        }

        .benefit-card:nth-child(5) {
            grid-column: span 3;
            background: var(--graphite);
            color: var(--text-on-dark);
            border-color: var(--graphite);
        }

        .benefit-card:nth-child(5):hover {
            border-color: var(--accent-lime);
        }

        .benefit-card .card-number {
            font-family: var(--font-mono);
            font-size: 11px;
            font-weight: 700;
            letter-spacing: 0.1em;
            color: var(--accent-orange);
            margin-bottom: 12px;
            display: block;
        }

        .benefit-card:nth-child(1) .card-number,
        .benefit-card:nth-child(5) .card-number {
            color: var(--accent-lime);
        }

        .benefit-card .card-icon {
            width: 44px;
            height: 44px;
            border-radius: var(--radius-sm);
            background: rgba(255, 77, 0, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 14px;
            font-size: 20px;
            color: var(--accent-orange);
        }

        .benefit-card:nth-child(1) .card-icon {
            background: rgba(198, 255, 0, 0.15);
            color: var(--accent-lime);
        }

        .benefit-card:nth-child(5) .card-icon {
            background: rgba(198, 255, 0, 0.15);
            color: var(--accent-lime);
        }

        .benefit-card .card-title {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 18px;
            color: var(--charcoal);
            margin-bottom: 8px;
            line-height: 1.4;
        }

        .benefit-card:nth-child(1) .card-title,
        .benefit-card:nth-child(5) .card-title {
            color: #fff;
        }

        .benefit-card .card-desc {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 14px;
        }

        .benefit-card:nth-child(1) .card-desc,
        .benefit-card:nth-child(5) .card-desc {
            color: rgba(240, 237, 232, 0.75);
        }

        .benefit-card .card-link {
            font-size: 13px;
            font-weight: 700;
            font-family: var(--font-heading);
            color: var(--accent-orange);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: var(--transition);
        }

        .benefit-card .card-link:hover {
            gap: 10px;
            color: var(--accent-orange);
        }

        .benefit-card:nth-child(1) .card-link,
        .benefit-card:nth-child(5) .card-link {
            color: var(--accent-lime);
        }

        @media (max-width: 992px) {
            .benefit-grid {
                grid-template-columns: 1fr 1fr;
            }

            .benefit-card,
            .benefit-card:nth-child(1),
            .benefit-card:nth-child(2),
            .benefit-card:nth-child(3),
            .benefit-card:nth-child(4),
            .benefit-card:nth-child(5) {
                grid-column: span 1;
            }
        }

        @media (max-width: 576px) {
            .benefit-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }

            .benefit-card,
            .benefit-card:nth-child(1),
            .benefit-card:nth-child(2),
            .benefit-card:nth-child(3),
            .benefit-card:nth-child(4),
            .benefit-card:nth-child(5) {
                grid-column: span 1;
                padding: 22px 18px;
            }
        }

        /* ===== 等级对比区 ===== */
        .tier-section {
            background: #fff;
            border-top: 1px solid var(--border-light);
            border-bottom: 1px solid var(--border-light);
        }

        .tier-table-wrap {
            overflow-x: auto;
            margin-top: 36px;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            background: #fff;
        }

        .tier-table {
            width: 100%;
            min-width: 720px;
            border-collapse: collapse;
            font-size: 14px;
        }

        .tier-table thead th {
            background: var(--charcoal);
            color: #fff;
            font-family: var(--font-heading);
            font-weight: 700;
            padding: 16px 20px;
            text-align: left;
            font-size: 14px;
            letter-spacing: 0.03em;
            border-bottom: 2px solid var(--accent-orange);
        }

        .tier-table thead th:first-child {
            border-radius: var(--radius-md) 0 0 0;
        }

        .tier-table thead th:last-child {
            border-radius: 0 var(--radius-md) 0 0;
        }

        .tier-table tbody td {
            padding: 14px 20px;
            border-bottom: 1px solid var(--border-light);
            color: var(--text-secondary);
            vertical-align: middle;
        }

        .tier-table tbody tr:last-child td {
            border-bottom: none;
        }

        .tier-table tbody tr:hover {
            background: rgba(242, 239, 233, 0.6);
        }

        .tier-table .tier-name {
            font-weight: 700;
            font-family: var(--font-heading);
            color: var(--charcoal);
        }

        .tier-table .tier-badge {
            display: inline-block;
            padding: 3px 10px;
            border-radius: 999px;
            font-size: 11px;
            font-weight: 700;
            font-family: var(--font-mono);
            letter-spacing: 0.06em;
        }

        .tier-badge.basic {
            background: rgba(74, 74, 74, 0.12);
            color: var(--text-secondary);
        }

        .tier-badge.pro {
            background: rgba(255, 77, 0, 0.12);
            color: var(--accent-orange);
        }

        .tier-badge.flagship {
            background: rgba(198, 255, 0, 0.2);
            color: var(--charcoal);
        }

        .tier-table .check-icon {
            color: var(--accent-orange);
            font-weight: 700;
        }

        .tier-table .dash-icon {
            color: var(--text-muted);
        }

        @media (max-width: 576px) {
            .tier-table {
                min-width: 600px;
                font-size: 12px;
            }

            .tier-table thead th,
            .tier-table tbody td {
                padding: 10px 12px;
            }
        }

        /* ===== 适用场景 ===== */
        .scenario-section {
            background: var(--paper);
        }

        .scenario-list {
            display: grid;
            grid-template-columns: repeat(12, 1fr);
            gap: 16px;
            margin-top: 36px;
        }

        .scenario-item {
            background: #fff;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            padding: 24px 20px;
            transition: var(--transition);
            grid-column: span 3;
            display: flex;
            flex-direction: column;
        }

        .scenario-item:hover {
            border-color: var(--accent-orange);
            box-shadow: var(--shadow-sm);
            transform: translateY(-2px);
        }

        .scenario-item .scenario-tag {
            font-family: var(--font-mono);
            font-size: 10px;
            font-weight: 700;
            letter-spacing: 0.1em;
            background: var(--charcoal);
            color: var(--accent-lime);
            display: inline-block;
            padding: 3px 10px;
            border-radius: 999px;
            margin-bottom: 12px;
            align-self: flex-start;
        }

        .scenario-item .scenario-title {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 16px;
            color: var(--charcoal);
            margin-bottom: 8px;
            line-height: 1.4;
        }

        .scenario-item .scenario-desc {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.8;
            flex-grow: 1;
        }

        @media (max-width: 992px) {
            .scenario-item {
                grid-column: span 6;
            }
        }

        @media (max-width: 576px) {
            .scenario-item {
                grid-column: span 12;
                padding: 18px 16px;
            }
        }

        /* ===== 开通流程 ===== */
        .process-section {
            background: var(--charcoal);
            color: var(--text-on-dark);
        }

        .process-section .section-title {
            color: #fff;
        }

        .process-section .section-subtitle {
            color: rgba(240, 237, 232, 0.7);
        }

        .process-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            margin-top: 40px;
        }

        .process-step {
            background: var(--graphite);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: var(--radius-md);
            padding: 28px 22px;
            transition: var(--transition);
            position: relative;
        }

        .process-step:hover {
            border-color: var(--accent-orange);
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }

        .process-step .step-number {
            font-family: var(--font-western);
            font-size: 36px;
            color: var(--accent-orange);
            line-height: 1;
            margin-bottom: 14px;
            display: block;
        }

        .process-step .step-title {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 17px;
            color: #fff;
            margin-bottom: 8px;
            line-height: 1.4;
        }

        .process-step .step-desc {
            font-size: 13px;
            color: rgba(240, 237, 232, 0.7);
            line-height: 1.8;
        }

        @media (max-width: 992px) {
            .process-grid {
                grid-template-columns: 1fr 1fr;
                gap: 14px;
            }
        }

        @media (max-width: 576px) {
            .process-grid {
                grid-template-columns: 1fr;
            }

            .process-step {
                padding: 20px 16px;
            }
        }

        /* ===== 会员评价 ===== */
        .testimonial-section {
            background: #fff;
            border-top: 1px solid var(--border-light);
        }

        .testimonial-grid {
            display: grid;
            grid-template-columns: 1fr 1fr 1fr;
            gap: 20px;
            margin-top: 36px;
        }

        .testimonial-card {
            background: var(--paper);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            padding: 26px 22px;
            transition: var(--transition);
            position: relative;
        }

        .testimonial-card:hover {
            border-color: var(--accent-orange);
            box-shadow: var(--shadow-sm);
            transform: translateY(-2px);
        }

        .testimonial-card .quote-mark {
            font-size: 40px;
            color: var(--accent-orange);
            line-height: 1;
            margin-bottom: 10px;
            display: block;
            font-family: var(--font-western);
        }

        .testimonial-card .quote-text {
            font-size: 14px;
            color: var(--text-primary);
            line-height: 1.85;
            font-weight: 500;
            margin-bottom: 14px;
        }

        .testimonial-card .quote-source {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 8px;
            font-size: 12px;
            color: var(--text-muted);
            font-family: var(--font-mono);
            letter-spacing: 0.04em;
        }

        .testimonial-card .quote-source .stars {
            color: var(--accent-orange);
            font-size: 11px;
            letter-spacing: 2px;
        }

        @media (max-width: 992px) {
            .testimonial-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }
        }

        /* ===== FAQ ===== */
        .faq-section {
            background: var(--paper);
        }

        .faq-wrap {
            max-width: 800px;
            margin: 36px auto 0;
        }

        .accordion-custom {
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            background: #fff;
            overflow: hidden;
        }

        .accordion-item-custom {
            border-bottom: 1px solid var(--border-light);
            transition: var(--transition);
        }

        .accordion-item-custom:last-child {
            border-bottom: none;
        }

        .accordion-header-custom {
            display: flex;
            align-items: center;
            gap: 14px;
            padding: 18px 22px;
            cursor: pointer;
            background: #fff;
            transition: var(--transition);
        }

        .accordion-header-custom:hover {
            background: rgba(242, 239, 233, 0.6);
        }

        .accordion-number {
            font-family: var(--font-mono);
            font-size: 12px;
            font-weight: 700;
            color: var(--accent-orange);
            letter-spacing: 0.08em;
            flex-shrink: 0;
        }

        .accordion-question {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 15px;
            color: var(--charcoal);
            flex-grow: 1;
            line-height: 1.5;
        }

        .accordion-icon {
            font-size: 14px;
            color: var(--text-muted);
            transition: transform 0.3s ease;
            flex-shrink: 0;
        }

        .accordion-item-custom.open .accordion-icon {
            transform: rotate(180deg);
            color: var(--accent-orange);
        }

        .accordion-body-custom {
            padding: 0 22px 20px 52px;
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.9;
            border-left: 3px solid var(--accent-orange);
            margin-left: 22px;
            margin-bottom: 14px;
            display: none;
        }

        .accordion-item-custom.open .accordion-body-custom {
            display: block;
        }

        @media (max-width: 576px) {
            .accordion-header-custom {
                padding: 14px 16px;
                gap: 10px;
            }

            .accordion-body-custom {
                padding: 0 14px 14px 34px;
                margin-left: 14px;
                font-size: 13px;
            }
        }

        /* ===== CTA ===== */
        .cta-section {
            background: var(--accent-orange);
            padding: 64px 0;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
        }

        .cta-content {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 32px;
            flex-wrap: wrap;
        }

        .cta-content .cta-text {
            flex: 1;
            min-width: 260px;
        }

        .cta-content .cta-title {
            font-family: var(--font-heading);
            font-weight: 900;
            font-size: 32px;
            color: #fff;
            margin-bottom: 10px;
            line-height: 1.3;
        }

        .cta-content .cta-desc {
            font-size: 16px;
            color: rgba(255, 255, 255, 0.85);
            line-height: 1.85;
            max-width: 500px;
        }

        .cta-content .cta-actions {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
            flex-shrink: 0;
        }

        .cta-content .btn-cta-primary {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: #fff;
            color: var(--accent-orange);
            border: none;
            border-radius: var(--radius-sm);
            padding: 16px 32px;
            font-weight: 700;
            font-size: 16px;
            font-family: var(--font-heading);
            letter-spacing: 0.03em;
            transition: var(--transition);
            cursor: pointer;
        }

        .cta-content .btn-cta-primary:hover {
            background: var(--charcoal);
            color: var(--accent-lime);
            transform: translateX(4px);
        }

        .cta-content .btn-cta-secondary {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: transparent;
            color: #fff;
            border: 1px solid rgba(255, 255, 255, 0.5);
            border-radius: var(--radius-sm);
            padding: 16px 24px;
            font-weight: 500;
            font-size: 15px;
            font-family: var(--font-heading);
            letter-spacing: 0.03em;
            transition: var(--transition);
            cursor: pointer;
        }

        .cta-content .btn-cta-secondary:hover {
            border-color: var(--charcoal);
            background: var(--charcoal);
            color: var(--accent-lime);
        }

        @media (max-width: 768px) {
            .cta-section {
                padding: 48px 0;
            }

            .cta-content {
                flex-direction: column;
                text-align: center;
            }

            .cta-content .cta-title {
                font-size: 26px;
            }

            .cta-content .cta-desc {
                max-width: 100%;
                margin: 0 auto;
            }

            .cta-content .cta-actions {
                justify-content: center;
                width: 100%;
            }
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--charcoal);
            color: var(--text-on-dark);
            padding: 56px 0 28px;
            border-top: 1px solid #2a2a2a;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 36px;
        }

        .footer-brand .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-family: var(--font-heading);
            font-weight: 900;
            font-size: 22px;
            color: #fff;
            letter-spacing: 0.04em;
            margin-bottom: 14px;
        }

        .footer-brand .footer-logo .logo-mark {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 32px;
            height: 32px;
            background: var(--accent-lime);
            color: var(--charcoal);
            font-size: 15px;
            font-weight: 900;
            border-radius: var(--radius-sm);
            flex-shrink: 0;
        }

        .footer-brand p {
            font-size: 14px;
            color: rgba(240, 237, 232, 0.65);
            line-height: 1.9;
            max-width: 320px;
        }

        .footer-col h4 {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 14px;
            color: #fff;
            margin-bottom: 14px;
            letter-spacing: 0.04em;
        }

        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .footer-col ul li {
            margin-bottom: 8px;
        }

        .footer-col ul li a {
            font-size: 13px;
            color: rgba(240, 237, 232, 0.6);
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .footer-col ul li a:hover {
            color: var(--accent-lime);
            transform: translateX(2px);
        }

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 20px;
            font-size: 12px;
            color: rgba(240, 237, 232, 0.5);
            font-family: var(--font-mono);
            letter-spacing: 0.04em;
        }

        .footer-bottom .footer-links {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }

        .footer-bottom .footer-links a {
            color: rgba(240, 237, 232, 0.5);
            transition: var(--transition);
        }

        .footer-bottom .footer-links a:hover {
            color: var(--accent-lime);
        }

        .footer-back-top {
            background: none;
            border: 1px solid rgba(255, 255, 255, 0.2);
            color: rgba(240, 237, 232, 0.7);
            border-radius: var(--radius-sm);
            padding: 8px 16px;
            font-size: 12px;
            cursor: pointer;
            transition: var(--transition);
            font-family: var(--font-mono);
            letter-spacing: 0.04em;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .footer-back-top:hover {
            background: var(--accent-orange);
            color: #fff;
            border-color: var(--accent-orange);
        }

        @media (max-width: 992px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }

            .footer-brand {
                grid-column: span 2;
            }
        }

        @media (max-width: 576px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }

            .footer-brand {
                grid-column: span 1;
            }

            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 10px;
            }

            .footer-bottom .footer-links {
                justify-content: center;
            }
        }

        /* ===== 响应式横滚导航 ===== */
        @media (max-width: 768px) {
            .channel-row {
                overflow-x: auto;
                -webkit-overflow-scrolling: touch;
                scrollbar-width: none;
                -ms-overflow-style: none;
            }

            .channel-row::-webkit-scrollbar {
                display: none;
            }

            .channel-tabs {
                min-width: max-content;
                padding: 0 16px;
                gap: 2px;
            }
        }

        /* ===== 动画 ===== */
        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(20px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .fade-in-up {
            animation: fadeInUp 0.6s ease forwards;
        }

/* roulang page: category6 */
:root {
            --charcoal: #141414;
            --graphite: #232323;
            --paper: #F2EFE9;
            --warm-gray: #D9D2C6;
            --accent-orange: #FF4D00;
            --accent-lime: #C6FF00;
            --text-primary: #1a1a1a;
            --text-secondary: #4a4a4a;
            --text-muted: #7a7a7a;
            --text-on-dark: #f0ede8;
            --border-light: #e3ddd2;
            --border-warm: #d9d2c6;
            --shadow-sm: 0 2px 8px rgba(20,20,20,0.06);
            --shadow-md: 0 6px 16px rgba(20,20,20,0.1);
            --shadow-lg: 0 12px 32px rgba(20,20,20,0.14);
            --radius-sm: 2px;
            --radius-md: 4px;
            --radius-lg: 8px;
            --font-heading: 'Noto Sans SC', sans-serif;
            --font-western: 'Archivo Black', sans-serif;
            --font-mono: 'Space Mono', monospace;
            --font-body: 'Noto Sans SC', sans-serif;
            --transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            --container-max: 1200px;
            --section-padding: 72px;
            --section-gap: 60px;
            --nav-height-desktop: 136px;
            --nav-height-mobile: 120px;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-body);
            background-color: var(--paper);
            color: var(--text-primary);
            line-height: 1.75;
            font-size: 16px;
            overflow-x: hidden;
            letter-spacing: 0.02em;
            margin: 0;
            padding: 0;
        }

        a {
            color: var(--graphite);
            text-decoration: none;
            transition: var(--transition);
        }

        a:hover {
            color: var(--accent-orange);
            text-decoration: none;
        }

        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        select:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--accent-orange);
            outline-offset: 2px;
            border-radius: var(--radius-sm);
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        .container-custom {
            max-width: var(--container-max);
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        @media (max-width: 576px) {
            .container-custom {
                padding-left: 16px;
                padding-right: 16px;
            }
        }

        /* ===== 顶部导航 ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1050;
            background-color: rgba(242, 239, 233, 0.96);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-light);
            transition: var(--transition);
        }

        .site-header.scrolled {
            box-shadow: 0 4px 16px rgba(20, 20, 20, 0.08);
            background-color: rgba(242, 239, 233, 0.99);
        }

        .brand-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 68px;
            gap: 16px;
        }

        .brand-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-family: var(--font-heading);
            font-weight: 900;
            font-size: 24px;
            color: var(--charcoal);
            letter-spacing: 0.04em;
            white-space: nowrap;
            flex-shrink: 0;
        }

        .brand-logo .logo-mark {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            background: var(--charcoal);
            color: var(--accent-lime);
            font-size: 18px;
            font-weight: 900;
            border-radius: var(--radius-sm);
            flex-shrink: 0;
        }

        .brand-logo:hover {
            color: var(--charcoal);
        }

        .brand-logo:hover .logo-mark {
            background: var(--accent-orange);
            color: #fff;
        }

        .brand-right {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }

        .search-form-desktop {
            display: flex;
            align-items: center;
            background: #fff;
            border: 1px solid var(--border-warm);
            border-radius: 999px;
            padding: 0 0 0 16px;
            height: 40px;
            transition: var(--transition);
            min-width: 240px;
        }

        .search-form-desktop:focus-within {
            border-color: var(--accent-orange);
            box-shadow: 0 0 0 3px rgba(255, 77, 0, 0.12);
        }

        .search-form-desktop input {
            border: none;
            outline: none;
            background: transparent;
            padding: 8px 8px 8px 4px;
            font-size: 14px;
            color: var(--text-primary);
            width: 100%;
            font-family: var(--font-body);
        }

        .search-form-desktop input::placeholder {
            color: var(--text-muted);
            font-size: 13px;
        }

        .search-form-desktop .search-btn {
            background: none;
            border: none;
            padding: 0 14px;
            color: var(--text-muted);
            cursor: pointer;
            transition: var(--transition);
            height: 100%;
            display: flex;
            align-items: center;
            font-size: 14px;
            border-radius: 0 999px 999px 0;
        }

        .search-form-desktop .search-btn:hover {
            color: var(--accent-orange);
        }

        .btn-brand {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--accent-orange);
            color: #ffffff;
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 14px;
            padding: 10px 20px;
            border-radius: var(--radius-sm);
            border: none;
            cursor: pointer;
            transition: var(--transition);
            white-space: nowrap;
            letter-spacing: 0.03em;
        }

        .btn-brand:hover {
            background: var(--charcoal);
            color: var(--accent-lime);
            transform: translateY(-1px);
            box-shadow: var(--shadow-md);
        }

        .btn-brand .arrow {
            transition: transform 0.3s ease;
        }

        .btn-brand:hover .arrow {
            transform: translateX(4px);
        }

        .channel-row {
            border-top: 1px solid var(--border-light);
            height: 52px;
            display: flex;
            align-items: center;
        }

        .channel-tabs {
            display: flex;
            align-items: center;
            gap: 2px;
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: thin;
            scrollbar-color: var(--border-warm) transparent;
            white-space: nowrap;
            width: 100%;
            padding-bottom: 2px;
        }

        .channel-tabs::-webkit-scrollbar {
            height: 3px;
        }

        .channel-tabs::-webkit-scrollbar-track {
            background: transparent;
        }

        .channel-tabs::-webkit-scrollbar-thumb {
            background: var(--border-warm);
            border-radius: 999px;
        }

        .channel-tab {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 16px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: 999px;
            transition: var(--transition);
            flex-shrink: 0;
            position: relative;
        }

        .channel-tab .tab-dot {
            width: 4px;
            height: 4px;
            border-radius: 50%;
            background: var(--accent-orange);
            display: none;
        }

        .channel-tab:hover {
            color: var(--accent-orange);
            background: rgba(255, 77, 0, 0.06);
        }

        .channel-tab.active {
            background: var(--charcoal);
            color: #fff;
            font-weight: 700;
        }

        .channel-tab.active .tab-dot {
            display: inline-block;
            background: var(--accent-lime);
        }

        @media (max-width: 768px) {
            .brand-row {
                height: 60px;
            }
            .brand-logo {
                font-size: 20px;
            }
            .brand-logo .logo-mark {
                width: 30px;
                height: 30px;
                font-size: 15px;
            }
            .search-form-desktop {
                display: none;
            }
            .channel-row {
                height: 46px;
            }
            .channel-tab {
                padding: 6px 12px;
                font-size: 13px;
            }
            .btn-brand {
                padding: 8px 14px;
                font-size: 13px;
            }
        }

        @media (max-width: 576px) {
            .channel-tabs {
                margin-left: -16px;
                margin-right: -16px;
                padding-left: 16px;
                padding-right: 16px;
                width: calc(100% + 32px);
            }
            .brand-row {
                height: 54px;
            }
            .brand-logo {
                font-size: 18px;
                gap: 6px;
            }
            .brand-logo .logo-mark {
                width: 26px;
                height: 26px;
                font-size: 13px;
            }
            .btn-brand {
                padding: 6px 10px;
                font-size: 12px;
                gap: 4px;
            }
            .channel-row {
                height: 42px;
            }
            .channel-tab {
                padding: 5px 10px;
                font-size: 12px;
                gap: 4px;
            }
        }

        /* ===== Hero 区域 ===== */
        .hero-community {
            padding: var(--section-padding) 0 48px;
            background: var(--paper);
            position: relative;
            overflow: hidden;
        }

        .hero-community::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 4px;
            background: linear-gradient(90deg, var(--accent-orange) 0%, var(--accent-lime) 50%, var(--accent-orange) 100%);
        }

        .hero-community-grid {
            display: grid;
            grid-template-columns: 1.1fr 0.9fr;
            gap: 48px;
            align-items: center;
        }

        .hero-community-content .hero-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            font-family: var(--font-mono);
            font-size: 12px;
            color: var(--text-muted);
            letter-spacing: 0.1em;
            text-transform: uppercase;
            margin-bottom: 16px;
            flex-wrap: wrap;
        }

        .hero-community-content .hero-meta .meta-sep {
            width: 24px;
            height: 1px;
            background: var(--accent-orange);
        }

        .hero-community-content h1 {
            font-family: var(--font-heading);
            font-weight: 900;
            font-size: 48px;
            line-height: 1.2;
            color: var(--charcoal);
            margin-bottom: 16px;
            letter-spacing: 0.01em;
        }

        .hero-community-content h1 .highlight {
            color: var(--accent-orange);
            position: relative;
        }

        .hero-community-content h1 .highlight::after {
            content: '';
            position: absolute;
            bottom: 4px;
            left: 0;
            width: 100%;
            height: 6px;
            background: var(--accent-lime);
            z-index: -1;
            border-radius: 2px;
        }

        .hero-community-content .hero-subtitle {
            font-size: 18px;
            line-height: 1.8;
            color: var(--text-secondary);
            margin-bottom: 24px;
            max-width: 520px;
        }

        .hero-stats {
            display: flex;
            gap: 24px;
            flex-wrap: wrap;
        }

        .hero-stat {
            display: flex;
            flex-direction: column;
            gap: 2px;
        }

        .hero-stat .stat-num {
            font-family: var(--font-mono);
            font-size: 28px;
            font-weight: 700;
            color: var(--charcoal);
            line-height: 1.2;
        }

        .hero-stat .stat-label {
            font-size: 12px;
            color: var(--text-muted);
            font-family: var(--font-mono);
            letter-spacing: 0.06em;
        }

        .hero-community-visual {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
        }

        .hero-community-visual img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            aspect-ratio: 4/3;
            transition: var(--transition);
        }

        .hero-community-visual:hover img {
            transform: scale(1.02);
        }

        .hero-community-visual .visual-overlay {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            padding: 24px;
            background: linear-gradient(transparent, rgba(20,20,20,0.85));
            color: #fff;
            display: flex;
            align-items: center;
            gap: 12px;
            flex-wrap: wrap;
        }

        .hero-community-visual .visual-overlay .visual-badge {
            background: var(--accent-orange);
            color: #fff;
            font-size: 11px;
            font-family: var(--font-mono);
            padding: 4px 12px;
            border-radius: 999px;
            letter-spacing: 0.08em;
        }

        .hero-community-visual .visual-overlay .visual-text {
            font-size: 14px;
            font-weight: 500;
        }

        @media (max-width: 992px) {
            .hero-community-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .hero-community-content h1 {
                font-size: 36px;
            }
        }

        @media (max-width: 576px) {
            .hero-community {
                padding: 40px 0 32px;
            }
            .hero-community-content h1 {
                font-size: 28px;
            }
            .hero-community-content .hero-subtitle {
                font-size: 15px;
            }
            .hero-stat .stat-num {
                font-size: 22px;
            }
            .hero-community-visual .visual-overlay {
                padding: 16px;
            }
        }

        /* ===== 社区数据带 ===== */
        .community-data-band {
            background: var(--charcoal);
            padding: 48px 0;
            border-top: 1px solid rgba(255,255,255,0.06);
            border-bottom: 1px solid rgba(255,255,255,0.06);
        }

        .community-data-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
        }

        .community-data-item {
            text-align: center;
            padding: 16px;
            border-right: 1px solid rgba(255,255,255,0.08);
        }

        .community-data-item:last-child {
            border-right: none;
        }

        .community-data-item .data-num {
            font-family: var(--font-mono);
            font-size: 40px;
            font-weight: 700;
            color: var(--accent-lime);
            line-height: 1.2;
        }

        .community-data-item .data-label {
            font-size: 14px;
            color: rgba(240,237,232,0.7);
            margin-top: 6px;
            letter-spacing: 0.04em;
        }

        @media (max-width: 768px) {
            .community-data-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .community-data-item {
                border-right: none;
                border-bottom: 1px solid rgba(255,255,255,0.08);
                padding: 12px;
            }
            .community-data-item:nth-child(3),
            .community-data-item:nth-child(4) {
                border-bottom: none;
            }
            .community-data-item .data-num {
                font-size: 28px;
            }
        }

        /* ===== 精选讨论区 ===== */
        .discussions-section {
            padding: var(--section-padding) 0;
            background: var(--paper);
        }

        .section-header {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            margin-bottom: 40px;
            flex-wrap: wrap;
            gap: 16px;
        }

        .section-header .section-label {
            font-family: var(--font-mono);
            font-size: 12px;
            color: var(--accent-orange);
            letter-spacing: 0.15em;
            text-transform: uppercase;
            margin-bottom: 8px;
            display: block;
        }

        .section-header h2 {
            font-family: var(--font-heading);
            font-weight: 900;
            font-size: 32px;
            color: var(--charcoal);
            margin-bottom: 0;
            letter-spacing: 0.01em;
        }

        .section-header .section-note {
            font-size: 14px;
            color: var(--text-muted);
            max-width: 320px;
            line-height: 1.7;
        }

        .discussion-list {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .discussion-quote {
            background: #ffffff;
            border: 1px solid var(--border-light);
            border-left: 4px solid var(--accent-orange);
            border-radius: var(--radius-md);
            padding: 24px 28px;
            transition: var(--transition);
            position: relative;
        }

        .discussion-quote:hover {
            border-left-color: var(--charcoal);
            box-shadow: var(--shadow-md);
            transform: translateX(4px);
        }

        .discussion-quote .quote-icon {
            font-size: 28px;
            color: var(--accent-orange);
            line-height: 1;
            margin-bottom: 12px;
            opacity: 0.6;
        }

        .discussion-quote .quote-text {
            font-size: 17px;
            font-weight: 500;
            color: var(--text-primary);
            line-height: 1.8;
            margin-bottom: 16px;
        }

        .discussion-quote .quote-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
            font-size: 13px;
            color: var(--text-muted);
        }

        .discussion-quote .quote-meta .quote-author {
            font-weight: 700;
            color: var(--text-secondary);
            font-family: var(--font-heading);
        }

        .discussion-quote .quote-meta .quote-tag {
            background: rgba(255, 77, 0, 0.08);
            color: var(--accent-orange);
            font-size: 12px;
            padding: 4px 12px;
            border-radius: 999px;
            font-weight: 500;
        }

        .discussion-quote .quote-meta .quote-stats {
            display: flex;
            gap: 16px;
            margin-left: auto;
        }

        .discussion-quote .quote-meta .quote-stats span {
            display: flex;
            align-items: center;
            gap: 4px;
            font-family: var(--font-mono);
            font-size: 12px;
        }

        @media (max-width: 768px) {
            .section-header h2 {
                font-size: 24px;
            }
            .discussion-quote {
                padding: 18px 20px;
            }
            .discussion-quote .quote-text {
                font-size: 15px;
            }
            .discussion-quote .quote-meta {
                gap: 8px;
            }
            .discussion-quote .quote-meta .quote-stats {
                margin-left: 0;
                width: 100%;
            }
        }

        /* ===== 热门话题 ===== */
        .topics-section {
            padding: 48px 0;
            background: #ffffff;
            border-top: 1px solid var(--border-light);
            border-bottom: 1px solid var(--border-light);
        }

        .topics-grid {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
        }

        .topic-chip {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--paper);
            border: 1px solid var(--border-warm);
            border-radius: 999px;
            padding: 8px 18px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
            transition: var(--transition);
            cursor: pointer;
        }

        .topic-chip:hover {
            border-color: var(--accent-orange);
            color: var(--accent-orange);
            background: rgba(255, 77, 0, 0.04);
            transform: translateY(-2px);
        }

        .topic-chip .chip-count {
            font-family: var(--font-mono);
            font-size: 11px;
            color: var(--text-muted);
            background: rgba(20,20,20,0.05);
            padding: 2px 8px;
            border-radius: 999px;
        }

        .topic-chip:hover .chip-count {
            background: rgba(255, 77, 0, 0.1);
            color: var(--accent-orange);
        }

        /* ===== 社区规则 ===== */
        .rules-section {
            padding: var(--section-padding) 0;
            background: var(--paper);
        }

        .rules-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .rule-card {
            background: #ffffff;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            padding: 24px;
            transition: var(--transition);
        }

        .rule-card:hover {
            border-color: var(--accent-orange);
            box-shadow: var(--shadow-sm);
        }

        .rule-card .rule-number {
            font-family: var(--font-mono);
            font-size: 13px;
            color: var(--accent-orange);
            font-weight: 700;
            letter-spacing: 0.1em;
            display: block;
            margin-bottom: 8px;
        }

        .rule-card h4 {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 17px;
            color: var(--charcoal);
            margin-bottom: 8px;
        }

        .rule-card p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 0;
        }

        @media (max-width: 768px) {
            .rules-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ===== 品牌介绍 ===== */
        .brand-intro-section {
            padding: 48px 0;
            background: #ffffff;
            border-top: 1px solid var(--border-light);
            border-bottom: 1px solid var(--border-light);
        }

        .brand-intro-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }

        .brand-intro-text h3 {
            font-family: var(--font-heading);
            font-weight: 900;
            font-size: 26px;
            color: var(--charcoal);
            margin-bottom: 16px;
        }

        .brand-intro-text p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.9;
            margin-bottom: 12px;
        }

        .brand-intro-image {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
        }

        .brand-intro-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            aspect-ratio: 16/10;
        }

        @media (max-width: 768px) {
            .brand-intro-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ===== FAQ ===== */
        .faq-section {
            padding: var(--section-padding) 0;
            background: var(--paper);
        }

        .faq-accordion .accordion-item {
            background: #ffffff;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md) !important;
            margin-bottom: 12px;
            overflow: hidden;
            transition: var(--transition);
        }

        .faq-accordion .accordion-item:focus-within {
            border-color: var(--accent-orange);
            box-shadow: 0 0 0 3px rgba(255, 77, 0, 0.08);
        }

        .faq-accordion .accordion-button {
            background: #ffffff;
            color: var(--text-primary);
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 16px;
            padding: 18px 20px;
            border: none;
            box-shadow: none;
            transition: var(--transition);
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .faq-accordion .accordion-button::after {
            display: none;
        }

        .faq-accordion .accordion-button .faq-num {
            font-family: var(--font-mono);
            font-size: 12px;
            color: var(--accent-orange);
            font-weight: 700;
            letter-spacing: 0.08em;
            flex-shrink: 0;
        }

        .faq-accordion .accordion-button .faq-arrow {
            margin-left: auto;
            transition: transform 0.3s ease;
            font-size: 14px;
            color: var(--text-muted);
        }

        .faq-accordion .accordion-button:not(.collapsed) {
            background: #ffffff;
            color: var(--charcoal);
            box-shadow: none;
            border-bottom: 1px solid var(--border-light);
        }

        .faq-accordion .accordion-button:not(.collapsed) .faq-arrow {
            transform: rotate(180deg);
            color: var(--accent-orange);
        }

        .faq-accordion .accordion-body {
            padding: 18px 20px 18px 52px;
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.8;
            border-left: 3px solid var(--accent-orange);
            margin-left: 20px;
            margin-right: 20px;
            padding-left: 20px;
            border-radius: 0;
            margin-top: 0;
        }

        /* ===== CTA 区域 ===== */
        .cta-band {
            background: var(--charcoal);
            padding: 56px 0;
            border-top: 1px solid rgba(255,255,255,0.06);
        }

        .cta-band-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 32px;
            flex-wrap: wrap;
        }

        .cta-band-inner .cta-title {
            font-family: var(--font-heading);
            font-weight: 900;
            font-size: 28px;
            color: #fff;
            margin-bottom: 8px;
        }

        .cta-band-inner .cta-desc {
            font-size: 15px;
            color: rgba(240,237,232,0.7);
            max-width: 480px;
            line-height: 1.7;
        }

        .btn-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--accent-orange);
            color: #fff;
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 15px;
            padding: 14px 28px;
            border-radius: var(--radius-sm);
            border: none;
            cursor: pointer;
            transition: var(--transition);
            white-space: nowrap;
            letter-spacing: 0.03em;
        }

        .btn-cta:hover {
            background: var(--accent-lime);
            color: var(--charcoal);
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
        }

        .btn-cta .arrow {
            transition: transform 0.3s ease;
        }

        .btn-cta:hover .arrow {
            transform: translateX(4px);
        }

        @media (max-width: 768px) {
            .cta-band-inner {
                flex-direction: column;
                align-items: flex-start;
            }
            .cta-band-inner .cta-title {
                font-size: 22px;
            }
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--charcoal);
            color: rgba(240,237,232,0.75);
            padding: 48px 0 24px;
            border-top: 1px solid rgba(255,255,255,0.06);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 32px;
            padding-bottom: 32px;
            border-bottom: 1px solid rgba(255,255,255,0.08);
        }

        .footer-brand .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-family: var(--font-heading);
            font-weight: 900;
            font-size: 22px;
            color: #fff;
            margin-bottom: 12px;
        }

        .footer-brand .footer-logo .logo-mark {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 32px;
            height: 32px;
            background: var(--accent-orange);
            color: #fff;
            font-size: 15px;
            font-weight: 900;
            border-radius: var(--radius-sm);
        }

        .footer-brand p {
            font-size: 14px;
            line-height: 1.8;
            color: rgba(240,237,232,0.6);
            max-width: 320px;
        }

        .footer-col h4 {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 15px;
            color: #fff;
            margin-bottom: 14px;
            letter-spacing: 0.04em;
        }

        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .footer-col ul li {
            margin-bottom: 8px;
        }

        .footer-col ul li a {
            color: rgba(240,237,232,0.6);
            font-size: 14px;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        .footer-col ul li a:hover {
            color: var(--accent-orange);
            transform: translateX(3px);
        }

        .footer-bottom {
            padding-top: 20px;
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 12px;
            color: rgba(240,237,232,0.45);
            font-family: var(--font-mono);
        }

        .footer-bottom .footer-links {
            display: flex;
            gap: 8px;
            margin-left: auto;
        }

        .footer-bottom .footer-links a {
            color: rgba(240,237,232,0.45);
            font-size: 12px;
            transition: var(--transition);
        }

        .footer-bottom .footer-links a:hover {
            color: var(--accent-orange);
        }

        .footer-back-top {
            background: none;
            border: 1px solid rgba(255,255,255,0.15);
            color: rgba(240,237,232,0.7);
            padding: 8px 16px;
            border-radius: 999px;
            font-size: 12px;
            font-family: var(--font-heading);
            cursor: pointer;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .footer-back-top:hover {
            background: var(--accent-orange);
            color: #fff;
            border-color: var(--accent-orange);
        }

        @media (max-width: 992px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .footer-brand {
                grid-column: 1 / -1;
            }
        }

        @media (max-width: 576px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
            .footer-bottom .footer-links {
                margin-left: 0;
            }
            .site-footer {
                padding: 32px 0 16px;
            }
        }

/* roulang page: category7 */
:root {
            --charcoal: #141414;
            --graphite: #232323;
            --paper: #F2EFE9;
            --warm-gray: #D9D2C6;
            --accent-orange: #FF4D00;
            --accent-lime: #C6FF00;
            --text-primary: #1a1a1a;
            --text-secondary: #4a4a4a;
            --text-muted: #7a7a7a;
            --text-on-dark: #f0ede8;
            --border-light: #e3ddd2;
            --border-warm: #d9d2c6;
            --shadow-sm: 0 2px 8px rgba(20,20,20,0.06);
            --shadow-md: 0 6px 16px rgba(20,20,20,0.1);
            --shadow-lg: 0 12px 32px rgba(20,20,20,0.14);
            --radius-sm: 2px;
            --radius-md: 4px;
            --radius-lg: 8px;
            --font-heading: 'Noto Sans SC', sans-serif;
            --font-western: 'Archivo Black', sans-serif;
            --font-mono: 'Space Mono', monospace;
            --font-body: 'Noto Sans SC', sans-serif;
            --transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            --container-max: 1200px;
            --section-padding: 72px;
            --section-gap: 60px;
            --nav-height-desktop: 136px;
            --nav-height-mobile: 120px;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-body);
            background-color: var(--paper);
            color: var(--text-primary);
            line-height: 1.75;
            font-size: 16px;
            overflow-x: hidden;
            letter-spacing: 0.02em;
        }

        a {
            color: var(--graphite);
            text-decoration: none;
            transition: var(--transition);
        }

        a:hover {
            color: var(--accent-orange);
            text-decoration: none;
        }

        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        select:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--accent-orange);
            outline-offset: 2px;
            border-radius: var(--radius-sm);
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        .container-custom {
            max-width: var(--container-max);
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        /* ===== 顶部导航 ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1050;
            background-color: rgba(242, 239, 233, 0.96);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-light);
            transition: var(--transition);
        }

        .site-header.scrolled {
            box-shadow: 0 4px 16px rgba(20, 20, 20, 0.08);
            background-color: rgba(242, 239, 233, 0.99);
        }

        .brand-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 68px;
            gap: 16px;
        }

        .brand-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-family: var(--font-heading);
            font-weight: 900;
            font-size: 24px;
            color: var(--charcoal);
            letter-spacing: 0.04em;
            white-space: nowrap;
            flex-shrink: 0;
        }

        .brand-logo .logo-mark {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            background: var(--charcoal);
            color: var(--accent-lime);
            font-size: 18px;
            font-weight: 900;
            border-radius: var(--radius-sm);
            flex-shrink: 0;
        }

        .brand-logo:hover {
            color: var(--charcoal);
        }

        .brand-logo:hover .logo-mark {
            background: var(--accent-orange);
            color: #fff;
        }

        .brand-right {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }

        .search-form-desktop {
            display: flex;
            align-items: center;
            background: #fff;
            border: 1px solid var(--border-warm);
            border-radius: 999px;
            padding: 0 0 0 16px;
            height: 40px;
            transition: var(--transition);
            min-width: 240px;
        }

        .search-form-desktop:focus-within {
            border-color: var(--accent-orange);
            box-shadow: 0 0 0 3px rgba(255, 77, 0, 0.12);
        }

        .search-form-desktop input {
            border: none;
            outline: none;
            background: transparent;
            padding: 8px 8px 8px 4px;
            font-size: 14px;
            color: var(--text-primary);
            width: 100%;
            font-family: var(--font-body);
        }

        .search-form-desktop input::placeholder {
            color: var(--text-muted);
            font-size: 13px;
        }

        .search-form-desktop .search-btn {
            background: none;
            border: none;
            padding: 0 14px;
            color: var(--text-muted);
            cursor: pointer;
            transition: var(--transition);
            height: 100%;
            display: flex;
            align-items: center;
            font-size: 14px;
            border-radius: 0 999px 999px 0;
        }

        .search-form-desktop .search-btn:hover {
            color: var(--accent-orange);
        }

        .btn-brand {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--accent-orange);
            color: #fff;
            padding: 8px 18px;
            border-radius: 999px;
            font-weight: 700;
            font-size: 14px;
            border: 1px solid var(--accent-orange);
            white-space: nowrap;
            transition: var(--transition);
            cursor: pointer;
        }

        .btn-brand:hover {
            background: transparent;
            color: var(--accent-orange);
            border-color: var(--accent-orange);
        }

        .btn-brand .arrow {
            transition: transform 0.3s ease;
        }

        .btn-brand:hover .arrow {
            transform: translateX(4px);
        }

        .channel-row {
            border-top: 1px solid var(--border-light);
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: none;
            -ms-overflow-style: none;
        }

        .channel-row::-webkit-scrollbar {
            display: none;
        }

        .channel-tabs {
            display: flex;
            align-items: center;
            gap: 4px;
            height: 48px;
            min-width: max-content;
            padding: 0 4px;
        }

        .channel-tab {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 16px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: 999px;
            white-space: nowrap;
            transition: var(--transition);
            position: relative;
            cursor: pointer;
        }

        .channel-tab:hover {
            color: var(--accent-orange);
            background: rgba(255, 77, 0, 0.05);
        }

        .channel-tab.active {
            background: var(--charcoal);
            color: #fff;
            font-weight: 700;
        }

        .channel-tab .tab-dot {
            width: 5px;
            height: 5px;
            border-radius: 50%;
            background: var(--accent-lime);
            display: none;
        }

        .channel-tab.active .tab-dot {
            display: inline-block;
        }

        /* ===== Hero ===== */
        .page-hero {
            position: relative;
            background-color: var(--charcoal);
            overflow: hidden;
            min-height: 420px;
            display: flex;
            align-items: center;
            padding: 56px 0;
        }

        .page-hero-bg {
            position: absolute;
            inset: 0;
            background-size: cover;
            background-position: center;
            opacity: 0.25;
        }

        .page-hero::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(20,20,20,0.9) 0%, rgba(20,20,20,0.55) 50%, rgba(20,20,20,0.3) 100%);
            z-index: 1;
        }

        .page-hero .container-custom {
            position: relative;
            z-index: 2;
        }

        .page-hero .hero-content {
            max-width: 650px;
        }

        .page-hero .hero-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(198, 255, 0, 0.12);
            border: 1px solid rgba(198, 255, 0, 0.35);
            color: var(--accent-lime);
            padding: 4px 12px;
            border-radius: 999px;
            font-family: var(--font-mono);
            font-size: 12px;
            letter-spacing: 0.08em;
            margin-bottom: 16px;
            text-transform: uppercase;
        }

        .page-hero h1 {
            font-family: var(--font-heading);
            font-weight: 900;
            font-size: 40px;
            color: #fff;
            line-height: 1.25;
            margin-bottom: 16px;
            letter-spacing: 0.01em;
        }

        .page-hero h1 .highlight {
            color: var(--accent-orange);
            position: relative;
        }

        .page-hero .hero-sub {
            font-size: 17px;
            color: #d9d2c6;
            line-height: 1.8;
            margin-bottom: 24px;
            max-width: 580px;
        }

        .page-hero .hero-meta {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px 20px;
            font-family: var(--font-mono);
            font-size: 12px;
            color: #b8b0a5;
            letter-spacing: 0.06em;
            margin-bottom: 24px;
        }

        .page-hero .hero-meta span {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .page-hero .hero-meta .dot {
            width: 5px;
            height: 5px;
            border-radius: 50%;
            background: var(--accent-orange);
        }

        .page-hero .hero-cta-group {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
        }

        .page-hero .hero-image-wrap {
            position: relative;
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid rgba(217, 210, 198, 0.3);
            box-shadow: var(--shadow-lg);
        }

        .page-hero .hero-image-wrap img {
            width: 100%;
            height: 340px;
            object-fit: cover;
            transition: transform 0.6s ease;
        }

        .page-hero .hero-image-wrap:hover img {
            transform: scale(1.03);
        }

        .page-hero .hero-image-badge {
            position: absolute;
            bottom: 16px;
            left: 16px;
            background: rgba(20,20,20,0.85);
            backdrop-filter: blur(8px);
            padding: 8px 14px;
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            gap: 8px;
            color: #fff;
            font-family: var(--font-mono);
            font-size: 12px;
            letter-spacing: 0.04em;
        }

        .page-hero .hero-image-badge .live-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--accent-orange);
            animation: pulse-dot 1.8s ease-in-out infinite;
        }

        @keyframes pulse-dot {
            0%, 100% { opacity: 1; transform: scale(1); }
            50% { opacity: 0.5; transform: scale(1.4); }
        }

        /* ===== 按钮通用 ===== */
        .btn-outline-light-custom {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: transparent;
            color: #fff;
            padding: 10px 22px;
            border-radius: var(--radius-sm);
            font-weight: 700;
            font-size: 14px;
            border: 1px solid rgba(255,255,255,0.4);
            transition: var(--transition);
            cursor: pointer;
        }

        .btn-outline-light-custom:hover {
            background: rgba(255,255,255,0.1);
            border-color: #fff;
            color: #fff;
        }

        .btn-solid-orange {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--accent-orange);
            color: #fff;
            padding: 10px 22px;
            border-radius: var(--radius-sm);
            font-weight: 700;
            font-size: 14px;
            border: 1px solid var(--accent-orange);
            transition: var(--transition);
            cursor: pointer;
        }

        .btn-solid-orange:hover {
            background: transparent;
            color: var(--accent-orange);
            border-color: var(--accent-orange);
        }

        .btn-solid-orange .arrow {
            transition: transform 0.3s ease;
        }

        .btn-solid-orange:hover .arrow {
            transform: translateX(4px);
        }

        /* ===== 板块通用 ===== */
        .section-block {
            padding: var(--section-padding) 0;
            position: relative;
        }

        .section-block + .section-block {
            border-top: 1px solid var(--border-light);
        }

        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-family: var(--font-mono);
            font-size: 12px;
            letter-spacing: 0.12em;
            text-transform: uppercase;
            color: var(--accent-orange);
            margin-bottom: 12px;
            font-weight: 700;
        }

        .section-label .label-line {
            width: 32px;
            height: 2px;
            background: var(--accent-orange);
            display: inline-block;
        }

        .section-title {
            font-family: var(--font-heading);
            font-weight: 900;
            font-size: 30px;
            color: var(--charcoal);
            line-height: 1.3;
            margin-bottom: 16px;
            letter-spacing: 0.01em;
        }

        .section-desc {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.85;
            max-width: 720px;
            margin-bottom: 32px;
        }

        /* ===== 亮点卡片 ===== */
        .highlight-card {
            background: #fff;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            padding: 24px;
            transition: var(--transition);
            height: 100%;
            position: relative;
            overflow: hidden;
        }

        .highlight-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 3px;
            height: 100%;
            background: transparent;
            transition: var(--transition);
        }

        .highlight-card:hover {
            border-color: var(--accent-orange);
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }

        .highlight-card:hover::before {
            background: var(--accent-orange);
        }

        .highlight-card .hc-icon {
            width: 44px;
            height: 44px;
            border-radius: var(--radius-sm);
            background: rgba(255, 77, 0, 0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            color: var(--accent-orange);
            margin-bottom: 14px;
        }

        .highlight-card h3 {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 17px;
            color: var(--charcoal);
            margin-bottom: 8px;
        }

        .highlight-card p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.75;
            margin-bottom: 0;
        }

        /* ===== 流程步骤 ===== */
        .step-item {
            display: flex;
            gap: 16px;
            padding: 20px 0;
            border-bottom: 1px solid var(--border-light);
            align-items: flex-start;
        }

        .step-item:last-child {
            border-bottom: none;
        }

        .step-number {
            flex-shrink: 0;
            width: 40px;
            height: 40px;
            border-radius: var(--radius-sm);
            background: var(--charcoal);
            color: var(--accent-lime);
            display: flex;
            align-items: center;
            justify-content: center;
            font-family: var(--font-mono);
            font-weight: 700;
            font-size: 16px;
        }

        .step-content h4 {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 16px;
            color: var(--charcoal);
            margin-bottom: 6px;
        }

        .step-content p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.75;
            margin-bottom: 0;
        }

        /* ===== FAQ 定制 ===== */
        .faq-custom .accordion-item {
            background: #fff;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-sm) !important;
            margin-bottom: 8px;
            overflow: hidden;
            transition: var(--transition);
        }

        .faq-custom .accordion-item:hover {
            border-color: var(--border-warm);
        }

        .faq-custom .accordion-button {
            background: #fff;
            color: var(--text-primary);
            font-weight: 700;
            font-size: 15px;
            padding: 16px 20px;
            box-shadow: none !important;
            border-radius: var(--radius-sm) !important;
            transition: var(--transition);
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .faq-custom .accordion-button:not(.collapsed) {
            background: rgba(255, 77, 0, 0.04);
            color: var(--accent-orange);
            border-bottom: 1px solid var(--border-light);
        }

        .faq-custom .accordion-button:focus {
            box-shadow: none;
            border-color: var(--accent-orange);
        }

        .faq-custom .accordion-button .faq-num {
            font-family: var(--font-mono);
            font-size: 12px;
            color: var(--accent-orange);
            flex-shrink: 0;
            letter-spacing: 0.06em;
        }

        .faq-custom .accordion-button::after {
            content: '\f078';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            font-size: 13px;
            color: var(--text-muted);
            transition: transform 0.3s ease;
        }

        .faq-custom .accordion-button:not(.collapsed)::after {
            transform: rotate(180deg);
            color: var(--accent-orange);
        }

        .faq-custom .accordion-body {
            padding: 16px 20px 20px 48px;
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.8;
            border-left: 3px solid var(--accent-orange);
            margin-left: 20px;
            background: #faf8f5;
        }

        /* ===== 表单 ===== */
        .form-card {
            background: #fff;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            padding: 32px;
            box-shadow: var(--shadow-sm);
        }

        .form-card .form-label {
            font-weight: 700;
            font-size: 14px;
            color: var(--charcoal);
            margin-bottom: 6px;
        }

        .form-card .form-control,
        .form-card .form-select {
            border: 1px solid var(--border-warm);
            border-radius: var(--radius-sm);
            padding: 10px 14px;
            font-size: 14px;
            color: var(--text-primary);
            background: #faf8f5;
            transition: var(--transition);
        }

        .form-card .form-control:focus,
        .form-card .form-select:focus {
            border-color: var(--accent-orange);
            box-shadow: 0 0 0 3px rgba(255, 77, 0, 0.1);
            background: #fff;
        }

        .form-card textarea.form-control {
            min-height: 100px;
            resize: vertical;
        }

        .form-card .form-hint {
            font-size: 12px;
            color: var(--text-muted);
            margin-top: 4px;
        }

        .form-check-input:checked {
            background-color: var(--accent-orange);
            border-color: var(--accent-orange);
        }

        /* ===== 深色CTA ===== */
        .cta-dark-section {
            background: var(--charcoal);
            padding: 64px 0;
            position: relative;
            overflow: hidden;
        }

        .cta-dark-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 2px;
            background: var(--accent-orange);
        }

        .cta-dark-section .cta-title {
            font-family: var(--font-heading);
            font-weight: 900;
            font-size: 28px;
            color: #fff;
            line-height: 1.35;
            margin-bottom: 12px;
        }

        .cta-dark-section .cta-sub {
            font-size: 15px;
            color: #b8b0a5;
            line-height: 1.7;
            margin-bottom: 24px;
            max-width: 600px;
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--charcoal);
            color: #b8b0a5;
            padding: 56px 0 24px;
            border-top: 3px solid var(--accent-orange);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 40px;
        }

        .footer-brand .footer-logo {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-family: var(--font-heading);
            font-weight: 900;
            font-size: 22px;
            color: #fff;
            margin-bottom: 14px;
        }

        .footer-brand .footer-logo .logo-mark {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 32px;
            height: 32px;
            background: var(--accent-orange);
            color: #fff;
            font-size: 15px;
            font-weight: 900;
            border-radius: var(--radius-sm);
        }

        .footer-brand p {
            font-size: 13px;
            line-height: 1.8;
            color: #b8b0a5;
            margin-bottom: 0;
            max-width: 320px;
        }

        .footer-col h4 {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 14px;
            color: #fff;
            margin-bottom: 14px;
            letter-spacing: 0.04em;
        }

        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .footer-col ul li {
            margin-bottom: 8px;
        }

        .footer-col ul li a {
            color: #b8b0a5;
            font-size: 13px;
            transition: var(--transition);
        }

        .footer-col ul li a:hover {
            color: var(--accent-orange);
        }

        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            padding-top: 20px;
            border-top: 1px solid rgba(255,255,255,0.1);
            font-size: 12px;
            color: #8a857e;
        }

        .footer-links {
            display: flex;
            gap: 16px;
        }

        .footer-links a {
            color: #8a857e;
            font-size: 12px;
        }

        .footer-links a:hover {
            color: var(--accent-orange);
        }

        .footer-back-top {
            background: none;
            border: 1px solid rgba(255,255,255,0.2);
            color: #b8b0a5;
            font-size: 12px;
            padding: 6px 14px;
            border-radius: 999px;
            cursor: pointer;
            transition: var(--transition);
        }

        .footer-back-top:hover {
            border-color: var(--accent-orange);
            color: var(--accent-orange);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 992px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }

            .page-hero h1 {
                font-size: 32px;
            }

            .page-hero .hero-image-wrap img {
                height: 260px;
            }

            .section-title {
                font-size: 24px;
            }
        }

        @media (max-width: 768px) {
            :root {
                --section-padding: 48px;
                --section-gap: 36px;
            }

            .brand-row {
                height: 60px;
                flex-wrap: wrap;
                gap: 8px;
            }

            .brand-logo {
                font-size: 20px;
            }

            .brand-logo .logo-mark {
                width: 30px;
                height: 30px;
                font-size: 15px;
            }

            .search-form-desktop {
                display: none;
            }

            .brand-right .btn-brand {
                padding: 6px 14px;
                font-size: 12px;
            }

            .channel-tabs {
                height: 42px;
                gap: 2px;
            }

            .channel-tab {
                padding: 6px 12px;
                font-size: 13px;
            }

            .page-hero {
                min-height: auto;
                padding: 36px 0;
            }

            .page-hero h1 {
                font-size: 26px;
            }

            .page-hero .hero-sub {
                font-size: 15px;
            }

            .page-hero .hero-image-wrap {
                margin-top: 20px;
            }

            .page-hero .hero-image-wrap img {
                height: 200px;
            }

            .section-title {
                font-size: 21px;
            }

            .form-card {
                padding: 20px;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }

            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }

            .footer-links {
                flex-wrap: wrap;
                gap: 10px;
            }

            .cta-dark-section .cta-title {
                font-size: 22px;
            }
        }

        @media (max-width: 576px) {
            .container-custom {
                padding-left: 12px;
                padding-right: 12px;
            }

            .brand-row {
                height: 54px;
            }

            .brand-logo {
                font-size: 18px;
                gap: 6px;
            }

            .brand-logo .logo-mark {
                width: 26px;
                height: 26px;
                font-size: 13px;
            }

            .brand-right .btn-brand {
                padding: 5px 10px;
                font-size: 11px;
                gap: 4px;
            }

            .channel-tab {
                padding: 5px 10px;
                font-size: 12px;
            }

            .page-hero h1 {
                font-size: 22px;
            }

            .page-hero .hero-sub {
                font-size: 14px;
            }

            .page-hero .hero-meta {
                font-size: 10px;
                gap: 8px;
            }

            .section-title {
                font-size: 19px;
            }

            .highlight-card {
                padding: 18px;
            }

            .highlight-card h3 {
                font-size: 15px;
            }

            .faq-custom .accordion-button {
                font-size: 13px;
                padding: 12px 14px;
            }

            .faq-custom .accordion-body {
                padding: 12px 14px 16px 32px;
                font-size: 13px;
                margin-left: 12px;
            }
        }