/* roulang page: index */
:root {
            --brand: #0F4C81;
            --brand-dark: #0B3D66;
            --brand-light: #E8F0F8;
            --accent: #2EC4B6;
            --accent-dark: #1FA99D;
            --accent-light: #E0F7F5;
            --cta: #F97316;
            --cta-dark: #D95F0B;
            --cta-light: #FEF0E6;
            --ink: #1E293B;
            --ink-soft: #64748B;
            --ink-faint: #94A3B8;
            --page: #F7F9FC;
            --card: #FFFFFF;
            --border: rgba(15,76,129,0.06);
            --radius: 16px;
            --shadow: 0 8px 24px rgba(15,76,129,0.08);
            --shadow-hover: 0 16px 36px rgba(15,76,129,0.14);
            --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

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

        body { font-family: 'Inter', 'PingFang SC', 'Microsoft YaHei', system-ui, sans-serif; background: var(--page); color: var(--ink); line-height: 1.65; font-size: 15px; }

        img { max-width: 100%; display: block; }
        a { color: inherit; text-decoration: none; transition: color var(--transition); }
        button, input { font: inherit; }
        a:focus-visible, button:focus-visible, input:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 6px; }

        .container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
        .section { padding: 88px 0; }
        .section-alt { background: #FFFFFF; }
        .section-soft { background: var(--brand-light); }

        .card { background: var(--card); border-radius: var(--radius); border: 1px solid var(--border); box-shadow: var(--shadow); transition: transform var(--transition), box-shadow var(--transition); }
        .card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }

        .badge { display: inline-block; padding: 4px 12px; border-radius: 4px; font-size: 12px; font-weight: 600; letter-spacing: 0.02em; }
        .badge-accent { background: var(--accent-light); color: var(--accent-dark); }
        .badge-cta { background: var(--cta-light); color: var(--cta); }
        .badge-brand { background: var(--brand-light); color: var(--brand); }

        .btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 12px 28px; border-radius: 8px; font-weight: 600; font-size: 15px; transition: all var(--transition); border: 2px solid transparent; cursor: pointer; }
        .btn-primary { background: var(--brand); color: #fff; border-color: var(--brand); }
        .btn-primary:hover { background: var(--brand-dark); border-color: var(--brand-dark); transform: translateY(-2px); }
        .btn-outline { background: transparent; color: var(--brand); border-color: var(--brand); }
        .btn-outline:hover { background: var(--brand-light); border-color: var(--brand); transform: translateY(-2px); }
        .btn-cta { background: var(--cta); color: #fff; border-color: var(--cta); }
        .btn-cta:hover { background: var(--cta-dark); border-color: var(--cta-dark); transform: translateY(-2px); }
        .btn-sm { padding: 8px 18px; font-size: 13px; border-radius: 6px; }
        .btn-lg { padding: 14px 34px; font-size: 16px; }

        .nav-link { position: relative; padding: 6px 0; font-size: 14px; font-weight: 500; color: var(--ink-soft); transition: color var(--transition); }
        .nav-link::after { content: ''; position: absolute; bottom: -2px; left: 0; width: 0; height: 2px; background: var(--brand); transition: width var(--transition); border-radius: 2px; }
        .nav-link:hover, .nav-link.active { color: var(--brand); }
        .nav-link:hover::after, .nav-link.active::after { width: 100%; }

        .divider { height: 1px; background: var(--border); border: none; }

        .stat-num { font-size: 36px; font-weight: 700; color: var(--brand); line-height: 1.15; }

        .faq-item { border: 1px solid var(--border); border-radius: 8px; overflow: hidden; transition: all var(--transition); background: var(--card); }
        .faq-item + .faq-item { margin-top: 12px; }
        .faq-item summary { list-style: none; cursor: pointer; padding: 18px 24px; font-weight: 600; font-size: 15px; color: var(--ink); display: flex; align-items: center; justify-content: space-between; }
        .faq-item summary::-webkit-details-marker { display: none; }
        .faq-item summary::after { content: '+'; font-size: 22px; font-weight: 400; color: var(--ink-faint); transition: transform var(--transition); }
        .faq-item[open] summary::after { transform: rotate(45deg); color: var(--brand); }
        .faq-item summary:hover { color: var(--brand); }
        .faq-item .faq-answer { padding: 0 24px 20px 24px; color: var(--ink-soft); font-size: 14px; line-height: 1.7; }

        .rank-bar { display: flex; align-items: center; gap: 12px; }
        .rank-num { width: 32px; height: 32px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: 700; font-size: 13px; background: var(--brand-light); color: var(--brand); flex-shrink: 0; }
        .rank-num.top1 { background: var(--accent); color: #fff; }
        .rank-num.top2 { background: var(--accent-light); color: var(--accent-dark); }
        .rank-num.top3 { background: #FEF3C7; color: #B45309; }
        .rank-bar-fill { flex: 1; height: 8px; background: #EDF2F7; border-radius: 4px; overflow: hidden; }
        .rank-bar-fill span { display: block; height: 100%; border-radius: 4px; background: var(--brand); transition: width 0.6s ease; }

        .hamburger { display: none; flex-direction: column; gap: 5px; cursor: pointer; padding: 10px; background: transparent; border: none; }
        .hamburger span { width: 24px; height: 2.5px; background: var(--ink); border-radius: 4px; transition: all var(--transition); transform-origin: center; }
        .hamburger.open span:nth-child(1) { transform: translateY(7.5px) rotate(45deg); }
        .hamburger.open span:nth-child(2) { opacity: 0; }
        .hamburger.open span:nth-child(3) { transform: translateY(-7.5px) rotate(-45deg); }

        .mobile-menu { display: none; background: #fff; border-radius: 12px; box-shadow: var(--shadow-hover); padding: 16px 20px; }
        .mobile-menu.open { display: block; position: absolute; top: 100%; left: 0; right: 0; z-index: 50; }

        .data-hscroll { overflow-x: auto; scrollbar-width: thin; scrollbar-color: var(--brand) #EDF2F7; }
        .data-hscroll::-webkit-scrollbar { height: 6px; }
        .data-hscroll::-webkit-scrollbar-track { background: #EDF2F7; border-radius: 6px; }
        .data-hscroll::-webkit-scrollbar-thumb { background: var(--brand-light); border-radius: 6px; }
        .data-hscroll::-webkit-scrollbar-thumb:hover { background: var(--brand); }

        .hero-image-panel { position: relative; border-radius: var(--radius); overflow: hidden; min-height: 400px; }
        .hero-image-panel img { width: 100%; height: 100%; object-fit: cover; position: absolute; inset: 0; }
        .hero-image-panel .overlay-text { position: absolute; bottom: 24px; left: 24px; right: 24px; z-index: 5; background: rgba(15,76,129,0.82); backdrop-filter: blur(8px); border-radius: 12px; padding: 18px 22px; }
        .hero-data-strip { position: absolute; bottom: -20px; left: 24px; right: 24px; z-index: 8; background: #fff; border-radius: 16px; box-shadow: var(--shadow-hover); padding: 16px 20px; }
        .hero-data-strip .data-item { display: flex; flex-direction: column; align-items: center; gap: 4px; }

        .partner-logo { filter: grayscale(1); opacity: 0.6; transition: all var(--transition); font-weight: 700; font-size: 16px; color: var(--ink-soft); letter-spacing: 0.03em; }
        .partner-logo:hover { filter: grayscale(0); opacity: 1; color: var(--brand); }

        .info-list-item { display: flex; align-items: flex-start; gap: 14px; padding: 16px 0; border-bottom: 1px solid var(--border); }
        .info-list-item:last-child { border-bottom: none; }

        .process-step { position: relative; padding: 24px; border-radius: var(--radius); background: var(--card); border: 1px solid var(--border); text-align: center; }
        .process-step .step-num { width: 40px; height: 40px; margin: 0 auto 14px; border-radius: 50%; background: var(--brand); color: #fff; display: flex; align-items: center; justify-content: center; font-weight: 700; font-size: 16px; }
        .process-step .step-arrow { position: absolute; top: 50%; right: -28px; transform: translateY(-50%); font-size: 24px; color: var(--accent); font-weight: 700; }

        .team-card { flex-shrink: 0; width: 260px; border-radius: var(--radius); overflow: hidden; background: var(--card); border: 1px solid var(--border); box-shadow: var(--shadow); transition: all var(--transition); }
        .team-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
        .team-card img { width: 100%; height: 150px; object-fit: cover; }

        .roadmap-item { position: relative; padding-left: 30px; padding-bottom: 28px; border-left: 2px solid var(--brand-light); }
        .roadmap-item::before { content: ''; position: absolute; left: -8px; top: 2px; width: 14px; height: 14px; border-radius: 50%; background: var(--brand); border: 3px solid #fff; box-shadow: 0 0 0 2px var(--brand-light); }
        .roadmap-item:last-child { border-left-color: transparent; }

        @media (max-width: 1024px) {
            .section { padding: 64px 0; }
            .process-step .step-arrow { display: none; }
            .hero-image-panel { min-height: 320px; }
        }

        @media (max-width: 768px) {
            .section { padding: 48px 0; }
            .container { padding: 0 16px; }
            .stat-num { font-size: 28px; }
            .desktop-nav { display: none; }
            .hamburger { display: flex; }
            .hero-image-panel { min-height: 260px; }
            .hero-data-strip { position: static; margin-top: 16px; }
            .team-card { width: 210px; }
        }

        @media (max-width: 520px) {
            .btn { padding: 10px 20px; font-size: 14px; }
            .btn-lg { padding: 12px 24px; font-size: 15px; }
            .section { padding: 40px 0; }
            .hero-image-panel { min-height: 220px; }
            .team-card { width: 180px; }
            .faq-item summary { padding: 14px 16px; font-size: 14px; }
            .faq-item .faq-answer { padding: 0 16px 16px 16px; }
        }

/* roulang page: category1 */
:root {
            --brand: #0F4C81;
            --brand-dark: #0B3D66;
            --brand-light: #E8F0F8;
            --accent: #2EC4B6;
            --accent-dark: #1FA99D;
            --accent-light: #E0F7F5;
            --cta: #F97316;
            --cta-dark: #D95F0B;
            --cta-light: #FEF0E6;
            --ink: #1E293B;
            --ink-soft: #64748B;
            --ink-faint: #94A3B8;
            --page: #F7F9FC;
            --card: #FFFFFF;
            --border: rgba(15, 76, 129, 0.06);
            --radius: 16px;
            --shadow: 0 8px 24px rgba(15, 76, 129, 0.08);
            --shadow-hover: 0 16px 36px rgba(15, 76, 129, 0.14);
            --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        body {
            font-family: 'Inter', 'PingFang SC', 'Microsoft YaHei', system-ui, sans-serif;
            background: var(--page);
            color: var(--ink);
            line-height: 1.65;
            font-size: 15px;
        }

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

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

        button,
        input {
            font: inherit;
        }

        a:focus-visible,
        button:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
            border-radius: 6px;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        .section {
            padding: 72px 0;
        }
        .section-alt {
            background: #ffffff;
        }
        .section-soft {
            background: var(--brand-light);
        }

        .card {
            background: var(--card);
            border-radius: var(--radius);
            border: 1px solid var(--border);
            box-shadow: var(--shadow);
            transition: transform var(--transition), box-shadow var(--transition);
        }
        .card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }

        .badge {
            display: inline-block;
            padding: 4px 12px;
            border-radius: 4px;
            font-size: 12px;
            font-weight: 600;
            letter-spacing: 0.02em;
        }
        .badge-accent {
            background: var(--accent-light);
            color: var(--accent-dark);
        }
        .badge-cta {
            background: var(--cta-light);
            color: var(--cta);
        }
        .badge-brand {
            background: var(--brand-light);
            color: var(--brand);
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: 8px;
            font-weight: 600;
            font-size: 15px;
            transition: all var(--transition);
            border: 2px solid transparent;
            cursor: pointer;
        }
        .btn-primary {
            background: var(--brand);
            color: #fff;
            border-color: var(--brand);
        }
        .btn-primary:hover {
            background: var(--brand-dark);
            border-color: var(--brand-dark);
            transform: translateY(-2px);
        }
        .btn-outline {
            background: transparent;
            color: var(--brand);
            border-color: var(--brand);
        }
        .btn-outline:hover {
            background: var(--brand-light);
            border-color: var(--brand);
            transform: translateY(-2px);
        }
        .btn-cta {
            background: var(--cta);
            color: #fff;
            border-color: var(--cta);
        }
        .btn-cta:hover {
            background: var(--cta-dark);
            border-color: var(--cta-dark);
            transform: translateY(-2px);
        }
        .btn-sm {
            padding: 8px 18px;
            font-size: 13px;
            border-radius: 6px;
        }
        .btn-lg {
            padding: 14px 34px;
            font-size: 16px;
        }

        .nav-link {
            position: relative;
            padding: 6px 0;
            font-size: 14px;
            font-weight: 500;
            color: var(--ink-soft);
            transition: color var(--transition);
        }
        .nav-link::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--brand);
            transition: width var(--transition);
            border-radius: 2px;
        }
        .nav-link:hover,
        .nav-link.active {
            color: var(--brand);
        }
        .nav-link:hover::after,
        .nav-link.active::after {
            width: 100%;
        }

        .divider {
            height: 1px;
            background: var(--border);
            border: none;
        }

        .faq-item {
            border: 1px solid var(--border);
            border-radius: 8px;
            overflow: hidden;
            transition: all var(--transition);
            background: var(--card);
        }
        .faq-item+.faq-item {
            margin-top: 12px;
        }
        .faq-item summary {
            list-style: none;
            cursor: pointer;
            padding: 18px 24px;
            font-weight: 600;
            font-size: 15px;
            color: var(--ink);
            display: flex;
            align-items: center;
            justify-content: space-between;
        }
        .faq-item summary::-webkit-details-marker {
            display: none;
        }
        .faq-item summary::after {
            content: '+';
            font-size: 22px;
            font-weight: 400;
            color: var(--ink-faint);
            transition: transform var(--transition);
        }
        .faq-item[open] summary::after {
            transform: rotate(45deg);
            color: var(--brand);
        }
        .faq-item summary:hover {
            color: var(--brand);
        }
        .faq-item .faq-answer {
            padding: 0 24px 20px 24px;
            color: var(--ink-soft);
            font-size: 14px;
            line-height: 1.7;
        }

        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            cursor: pointer;
            padding: 10px;
            background: transparent;
            border: none;
        }
        .hamburger span {
            width: 24px;
            height: 2.5px;
            background: var(--ink);
            border-radius: 4px;
            transition: all var(--transition);
            transform-origin: center;
        }
        .hamburger.open span:nth-child(1) {
            transform: translateY(7.5px) rotate(45deg);
        }
        .hamburger.open span:nth-child(2) {
            opacity: 0;
        }
        .hamburger.open span:nth-child(3) {
            transform: translateY(-7.5px) rotate(-45deg);
        }

        .mobile-menu {
            display: none;
            background: #fff;
            border-radius: 12px;
            box-shadow: var(--shadow-hover);
            padding: 16px 20px;
        }
        .mobile-menu.open {
            display: block;
            position: absolute;
            top: 100%;
            left: 0;
            right: 0;
            z-index: 50;
        }

        .data-hscroll {
            overflow-x: auto;
            scrollbar-width: thin;
            scrollbar-color: var(--brand) #EDF2F7;
        }
        .data-hscroll::-webkit-scrollbar {
            height: 6px;
        }
        .data-hscroll::-webkit-scrollbar-track {
            background: #EDF2F7;
            border-radius: 6px;
        }
        .data-hscroll::-webkit-scrollbar-thumb {
            background: var(--brand-light);
            border-radius: 6px;
        }
        .data-hscroll::-webkit-scrollbar-thumb:hover {
            background: var(--brand);
        }

        .live-card-img {
            position: relative;
            overflow: hidden;
            border-radius: var(--radius) var(--radius) 0 0;
            height: 200px;
        }
        .live-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        .card:hover .live-card-img img {
            transform: scale(1.05);
        }
        .live-status-badge {
            position: absolute;
            top: 12px;
            left: 12px;
            z-index: 5;
        }

        .breadcrumb-link {
            font-size: 13px;
            color: var(--ink-soft);
            transition: color var(--transition);
        }
        .breadcrumb-link:hover {
            color: var(--brand);
        }

        .category-hero {
            border-radius: var(--radius);
            overflow: hidden;
            position: relative;
            min-height: 280px;
            display: flex;
            align-items: flex-end;
        }
        .category-hero img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            position: absolute;
            inset: 0;
        }
        .category-hero .hero-overlay {
            position: relative;
            z-index: 5;
            width: 100%;
            background: linear-gradient(0deg, rgba(15, 76, 129, 0.88) 0%, rgba(15, 76, 129, 0.45) 60%, rgba(15, 76, 129, 0.15) 100%);
            padding: 40px 32px 28px;
        }

        .stat-bar-item {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 10px 14px;
            background: var(--card);
            border-radius: 10px;
            border: 1px solid var(--border);
            transition: all var(--transition);
        }
        .stat-bar-item:hover {
            border-color: var(--accent);
            box-shadow: var(--shadow);
        }
        .stat-rank-num {
            font-size: 22px;
            font-weight: 700;
            color: var(--brand);
            min-width: 40px;
            text-align: center;
        }
        .stat-rank-num.top3 {
            color: var(--cta);
        }

        .form-input {
            height: 40px;
            border-radius: 8px;
            border: 1px solid var(--border);
            padding: 0 16px;
            font-size: 14px;
            background: var(--card);
            transition: border-color var(--transition);
            width: 100%;
        }
        .form-input:focus {
            border-color: var(--brand);
            outline: none;
        }

        @media (max-width: 1024px) {
            .section {
                padding: 56px 0;
            }
            .category-hero {
                min-height: 240px;
            }
        }

        @media (max-width: 768px) {
            .section {
                padding: 44px 0;
            }
            .hamburger {
                display: flex;
            }
            .desktop-nav {
                display: none;
            }
            .category-hero {
                min-height: 220px;
            }
            .category-hero .hero-overlay {
                padding: 28px 20px 20px;
            }
            .live-card-img {
                height: 180px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .section {
                padding: 36px 0;
            }
            .category-hero {
                min-height: 200px;
            }
            .live-card-img {
                height: 160px;
            }
            .btn-lg {
                padding: 12px 24px;
                font-size: 14px;
            }
        }

/* roulang page: category2 */
:root {
            --brand: #0F4C81;
            --brand-dark: #0B3D66;
            --brand-light: #E8F0F8;
            --accent: #2EC4B6;
            --accent-dark: #1FA99D;
            --accent-light: #E0F7F5;
            --cta: #F97316;
            --cta-dark: #D95F0B;
            --cta-light: #FEF0E6;
            --ink: #1E293B;
            --ink-soft: #64748B;
            --ink-faint: #94A3B8;
            --page: #F7F9FC;
            --card: #FFFFFF;
            --border: rgba(15, 76, 129, 0.06);
            --radius: 16px;
            --shadow: 0 8px 24px rgba(15, 76, 129, 0.08);
            --shadow-hover: 0 16px 36px rgba(15, 76, 129, 0.14);
            --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
        }
        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
        }
        body {
            font-family: 'Inter', 'PingFang SC', 'Microsoft YaHei', system-ui, sans-serif;
            background: var(--page);
            color: var(--ink);
            line-height: 1.65;
            font-size: 15px;
        }
        img {
            max-width: 100%;
            display: block;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition);
        }
        button,
        input {
            font: inherit;
        }
        a:focus-visible,
        button:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
            border-radius: 6px;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
        .section {
            padding: 72px 0;
        }
        .section-alt {
            background: #FFFFFF;
        }
        .section-soft {
            background: var(--brand-light);
        }
        .card {
            background: var(--card);
            border-radius: var(--radius);
            border: 1px solid var(--border);
            box-shadow: var(--shadow);
            transition: transform var(--transition), box-shadow var(--transition);
        }
        .card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }
        .badge {
            display: inline-block;
            padding: 4px 12px;
            border-radius: 4px;
            font-size: 12px;
            font-weight: 600;
            letter-spacing: 0.02em;
        }
        .badge-accent {
            background: var(--accent-light);
            color: var(--accent-dark);
        }
        .badge-cta {
            background: var(--cta-light);
            color: var(--cta);
        }
        .badge-brand {
            background: var(--brand-light);
            color: var(--brand);
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: 8px;
            font-weight: 600;
            font-size: 15px;
            transition: all var(--transition);
            border: 2px solid transparent;
            cursor: pointer;
        }
        .btn-primary {
            background: var(--brand);
            color: #fff;
            border-color: var(--brand);
        }
        .btn-primary:hover {
            background: var(--brand-dark);
            border-color: var(--brand-dark);
            transform: translateY(-2px);
        }
        .btn-outline {
            background: transparent;
            color: var(--brand);
            border-color: var(--brand);
        }
        .btn-outline:hover {
            background: var(--brand-light);
            border-color: var(--brand);
            transform: translateY(-2px);
        }
        .btn-cta {
            background: var(--cta);
            color: #fff;
            border-color: var(--cta);
        }
        .btn-cta:hover {
            background: var(--cta-dark);
            border-color: var(--cta-dark);
            transform: translateY(-2px);
        }
        .btn-sm {
            padding: 8px 18px;
            font-size: 13px;
            border-radius: 6px;
        }
        .btn-lg {
            padding: 14px 34px;
            font-size: 16px;
        }
        .nav-link {
            position: relative;
            padding: 6px 0;
            font-size: 14px;
            font-weight: 500;
            color: var(--ink-soft);
            transition: color var(--transition);
        }
        .nav-link::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--brand);
            transition: width var(--transition);
            border-radius: 2px;
        }
        .nav-link:hover,
        .nav-link.active {
            color: var(--brand);
        }
        .nav-link:hover::after,
        .nav-link.active::after {
            width: 100%;
        }
        .divider {
            height: 1px;
            background: var(--border);
            border: none;
        }
        .faq-item {
            border: 1px solid var(--border);
            border-radius: 8px;
            overflow: hidden;
            transition: all var(--transition);
            background: var(--card);
        }
        .faq-item+.faq-item {
            margin-top: 12px;
        }
        .faq-item summary {
            list-style: none;
            cursor: pointer;
            padding: 18px 24px;
            font-weight: 600;
            font-size: 15px;
            color: var(--ink);
            display: flex;
            align-items: center;
            justify-content: space-between;
        }
        .faq-item summary::-webkit-details-marker {
            display: none;
        }
        .faq-item summary::after {
            content: '+';
            font-size: 22px;
            font-weight: 400;
            color: var(--ink-faint);
            transition: transform var(--transition);
        }
        .faq-item[open] summary::after {
            transform: rotate(45deg);
            color: var(--brand);
        }
        .faq-item summary:hover {
            color: var(--brand);
        }
        .faq-item .faq-answer {
            padding: 0 24px 20px 24px;
            color: var(--ink-soft);
            font-size: 14px;
            line-height: 1.7;
        }
        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            cursor: pointer;
            padding: 10px;
            background: transparent;
            border: none;
        }
        .hamburger span {
            width: 24px;
            height: 2.5px;
            background: var(--ink);
            border-radius: 4px;
            transition: all var(--transition);
            transform-origin: center;
        }
        .hamburger.open span:nth-child(1) {
            transform: translateY(7.5px) rotate(45deg);
        }
        .hamburger.open span:nth-child(2) {
            opacity: 0;
        }
        .hamburger.open span:nth-child(3) {
            transform: translateY(-7.5px) rotate(-45deg);
        }
        .mobile-menu {
            display: none;
            background: #fff;
            border-radius: 12px;
            box-shadow: var(--shadow-hover);
            padding: 16px 20px;
        }
        .mobile-menu.open {
            display: block;
            position: absolute;
            top: 100%;
            left: 0;
            right: 0;
            z-index: 50;
        }
        .data-hscroll {
            overflow-x: auto;
            scrollbar-width: thin;
            scrollbar-color: var(--brand) #EDF2F7;
        }
        .data-hscroll::-webkit-scrollbar {
            height: 6px;
        }
        .data-hscroll::-webkit-scrollbar-track {
            background: #EDF2F7;
            border-radius: 6px;
        }
        .data-hscroll::-webkit-scrollbar-thumb {
            background: var(--brand-light);
            border-radius: 6px;
        }
        .data-hscroll::-webkit-scrollbar-thumb:hover {
            background: var(--brand);
        }
        .rank-bar {
            height: 8px;
            border-radius: 6px;
            background: #EDF2F7;
            overflow: hidden;
            position: relative;
        }
        .rank-bar-fill {
            height: 100%;
            border-radius: 6px;
            transition: width 0.8s ease;
        }
        .rank-bar-fill.top1 {
            background: var(--cta);
        }
        .rank-bar-fill.top2 {
            background: var(--accent);
        }
        .rank-bar-fill.top3 {
            background: var(--brand);
        }
        .rank-bar-fill.normal {
            background: #CBD5E1;
        }
        .stat-pulse {
            animation: pulseSoft 2.5s ease-in-out infinite;
        }
        @keyframes pulseSoft {
            0%,
            100% {
                opacity: 1;
            }
            50% {
                opacity: 0.7;
            }
        }
        .breadcrumb-link {
            color: var(--ink-faint);
            font-size: 13px;
            transition: color var(--transition);
        }
        .breadcrumb-link:hover {
            color: var(--brand);
        }
        .anchor-chip {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 16px;
            border-radius: 20px;
            background: #fff;
            border: 1px solid var(--border);
            font-size: 13px;
            font-weight: 500;
            color: var(--ink-soft);
            transition: all var(--transition);
            white-space: nowrap;
        }
        .anchor-chip:hover {
            border-color: var(--brand);
            color: var(--brand);
            background: var(--brand-light);
        }
        .list-card {
            display: flex;
            gap: 20px;
            padding: 20px;
            background: var(--card);
            border-radius: var(--radius);
            border: 1px solid var(--border);
            box-shadow: var(--shadow);
            transition: transform var(--transition), box-shadow var(--transition);
        }
        .list-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-hover);
        }
        .list-card-img {
            width: 120px;
            height: 90px;
            flex-shrink: 0;
            border-radius: 10px;
            overflow: hidden;
        }
        .list-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .deep-read-card {
            background: var(--card);
            border-radius: var(--radius);
            border: 1px solid var(--border);
            box-shadow: var(--shadow);
            overflow: hidden;
            transition: transform var(--transition), box-shadow var(--transition);
        }
        .deep-read-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }
        .deep-read-card .deep-read-img {
            height: 180px;
            overflow: hidden;
        }
        .deep-read-card .deep-read-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        @media (max-width: 1024px) {
            .section {
                padding: 56px 0;
            }
            .container {
                padding: 0 20px;
            }
            .list-card {
                flex-direction: column;
            }
            .list-card-img {
                width: 100%;
                height: 160px;
            }
        }
        @media (max-width: 768px) {
            .section {
                padding: 48px 0;
            }
            .container {
                padding: 0 16px;
            }
            .hamburger {
                display: flex;
            }
            .desktop-nav {
                display: none !important;
            }
            .hero-h1 {
                font-size: 28px !important;
                line-height: 1.3 !important;
            }
            .deep-read-card .deep-read-img {
                height: 140px;
            }
        }
        @media (min-width: 769px) {
            .mobile-menu {
                display: none !important;
            }
        }
        @media (max-width: 640px) {
            .grid-cols-2-sm {
                grid-template-columns: 1fr !important;
            }
            .btn-lg {
                padding: 12px 24px;
                font-size: 14px;
            }
            .list-card {
                padding: 16px;
            }
            .list-card-img {
                height: 140px;
            }
        }
        .cta-bg {
            background-image: linear-gradient(rgba(15, 76, 129, 0.88), rgba(15, 76, 129, 0.88)), url('/assets/images/958a998fe6bd94b6.webp');
            background-size: cover;
            background-position: center;
        }
        .header-sticky {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
        }
        .rank-number {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            font-weight: 700;
            font-size: 14px;
            flex-shrink: 0;
        }
        .rank-number.r1 {
            background: var(--cta);
            color: #fff;
        }
        .rank-number.r2 {
            background: var(--accent);
            color: #fff;
        }
        .rank-number.r3 {
            background: var(--brand);
            color: #fff;
        }
        .rank-number.rn {
            background: #EDF2F7;
            color: var(--ink-soft);
        }
        .data-stat-card {
            background: var(--card);
            border-radius: var(--radius);
            border: 1px solid var(--border);
            box-shadow: var(--shadow);
            padding: 20px 24px;
            min-width: 220px;
            flex-shrink: 0;
            transition: transform var(--transition), box-shadow var(--transition);
        }
        .data-stat-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-hover);
        }

/* roulang page: category3 */
:root {
            --brand: #0F4C81;
            --brand-dark: #0B3D66;
            --brand-light: #E8F0F8;
            --accent: #2EC4B6;
            --accent-dark: #1FA99D;
            --accent-light: #E0F7F5;
            --cta: #F97316;
            --cta-dark: #D95F0B;
            --cta-light: #FEF0E6;
            --ink: #1E293B;
            --ink-soft: #64748B;
            --ink-faint: #94A3B8;
            --page: #F7F9FC;
            --card: #FFFFFF;
            --border: rgba(15, 76, 129, 0.06);
            --radius: 16px;
            --shadow: 0 8px 24px rgba(15, 76, 129, 0.08);
            --shadow-hover: 0 16px 36px rgba(15, 76, 129, 0.14);
            --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        body {
            font-family: 'Inter', 'PingFang SC', 'Microsoft YaHei', system-ui, sans-serif;
            background: var(--page);
            color: var(--ink);
            line-height: 1.65;
            font-size: 15px;
        }

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

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

        button,
        input {
            font: inherit;
        }

        a:focus-visible,
        button:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
            border-radius: 6px;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        .section {
            padding: 72px 0;
        }

        .section-alt {
            background: #FFFFFF;
        }

        .section-soft {
            background: var(--brand-light);
        }

        .section-deep {
            background: #0F172A;
            color: #fff;
        }

        .card {
            background: var(--card);
            border-radius: var(--radius);
            border: 1px solid var(--border);
            box-shadow: var(--shadow);
            transition: transform var(--transition), box-shadow var(--transition);
        }

        .card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }

        .badge {
            display: inline-block;
            padding: 4px 12px;
            border-radius: 4px;
            font-size: 12px;
            font-weight: 600;
            letter-spacing: 0.02em;
        }

        .badge-accent {
            background: var(--accent-light);
            color: var(--accent-dark);
        }

        .badge-cta {
            background: var(--cta-light);
            color: var(--cta);
        }

        .badge-brand {
            background: var(--brand-light);
            color: var(--brand);
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: 8px;
            font-weight: 600;
            font-size: 15px;
            transition: all var(--transition);
            border: 2px solid transparent;
            cursor: pointer;
        }

        .btn-primary {
            background: var(--brand);
            color: #fff;
            border-color: var(--brand);
        }

        .btn-primary:hover {
            background: var(--brand-dark);
            border-color: var(--brand-dark);
            transform: translateY(-2px);
        }

        .btn-outline {
            background: transparent;
            color: var(--brand);
            border-color: var(--brand);
        }

        .btn-outline:hover {
            background: var(--brand-light);
            border-color: var(--brand);
            transform: translateY(-2px);
        }

        .btn-cta {
            background: var(--cta);
            color: #fff;
            border-color: var(--cta);
        }

        .btn-cta:hover {
            background: var(--cta-dark);
            border-color: var(--cta-dark);
            transform: translateY(-2px);
        }

        .btn-sm {
            padding: 8px 18px;
            font-size: 13px;
            border-radius: 6px;
        }

        .btn-lg {
            padding: 14px 34px;
            font-size: 16px;
        }

        .nav-link {
            position: relative;
            padding: 6px 0;
            font-size: 14px;
            font-weight: 500;
            color: var(--ink-soft);
            transition: color var(--transition);
        }

        .nav-link::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--brand);
            transition: width var(--transition);
            border-radius: 2px;
        }

        .nav-link:hover,
        .nav-link.active {
            color: var(--brand);
        }

        .nav-link:hover::after,
        .nav-link.active::after {
            width: 100%;
        }

        .divider {
            height: 1px;
            background: var(--border);
            border: none;
        }

        .faq-item {
            border: 1px solid var(--border);
            border-radius: 8px;
            overflow: hidden;
            transition: all var(--transition);
            background: var(--card);
        }

        .faq-item+.faq-item {
            margin-top: 12px;
        }

        .faq-item summary {
            list-style: none;
            cursor: pointer;
            padding: 18px 24px;
            font-weight: 600;
            font-size: 15px;
            color: var(--ink);
            display: flex;
            align-items: center;
            justify-content: space-between;
        }

        .faq-item summary::-webkit-details-marker {
            display: none;
        }

        .faq-item summary::after {
            content: '+';
            font-size: 22px;
            font-weight: 400;
            color: var(--ink-faint);
            transition: transform var(--transition);
        }

        .faq-item[open] summary::after {
            transform: rotate(45deg);
            color: var(--brand);
        }

        .faq-item summary:hover {
            color: var(--brand);
        }

        .faq-item .faq-answer {
            padding: 0 24px 20px 24px;
            color: var(--ink-soft);
            font-size: 14px;
            line-height: 1.7;
        }

        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            cursor: pointer;
            padding: 10px;
            background: transparent;
            border: none;
        }

        .hamburger span {
            width: 24px;
            height: 2.5px;
            background: var(--ink);
            border-radius: 4px;
            transition: all var(--transition);
            transform-origin: center;
        }

        .hamburger.open span:nth-child(1) {
            transform: translateY(7.5px) rotate(45deg);
        }

        .hamburger.open span:nth-child(2) {
            opacity: 0;
        }

        .hamburger.open span:nth-child(3) {
            transform: translateY(-7.5px) rotate(-45deg);
        }

        .mobile-menu {
            display: none;
            background: #fff;
            border-radius: 12px;
            box-shadow: var(--shadow-hover);
            padding: 16px 20px;
        }

        .mobile-menu.open {
            display: block;
            position: absolute;
            top: 100%;
            left: 0;
            right: 0;
            z-index: 50;
        }

        .data-hscroll {
            overflow-x: auto;
            scrollbar-width: thin;
            scrollbar-color: var(--brand) #EDF2F7;
        }

        .data-hscroll::-webkit-scrollbar {
            height: 6px;
        }

        .data-hscroll::-webkit-scrollbar-track {
            background: #EDF2F7;
            border-radius: 6px;
        }

        .data-hscroll::-webkit-scrollbar-thumb {
            background: var(--brand-light);
            border-radius: 6px;
        }

        .data-hscroll::-webkit-scrollbar-thumb:hover {
            background: var(--brand);
        }

        /* 分类页特有样式 */
        .category-hero {
            background: linear-gradient(135deg, var(--brand) 0%, var(--brand-dark) 100%);
            border-radius: var(--radius);
            overflow: hidden;
            position: relative;
        }

        .category-hero .hero-overlay {
            position: absolute;
            inset: 0;
            background: rgba(15, 76, 129, 0.55);
            z-index: 1;
        }

        .category-hero .hero-content {
            position: relative;
            z-index: 2;
        }

        .team-card-img {
            height: 200px;
            object-fit: cover;
            border-radius: var(--radius) var(--radius) 0 0;
        }

        .stat-bar {
            height: 8px;
            border-radius: 4px;
            background: #EDF2F7;
            overflow: hidden;
        }

        .stat-bar-fill {
            height: 100%;
            border-radius: 4px;
            transition: width 0.8s ease;
        }

        .breadcrumb-link {
            color: var(--ink-soft);
            font-size: 13px;
            transition: color var(--transition);
        }

        .breadcrumb-link:hover {
            color: var(--brand);
        }

        .article-card {
            display: flex;
            gap: 16px;
            align-items: flex-start;
            padding: 16px;
            border-radius: 12px;
            transition: background var(--transition);
            border: 1px solid transparent;
        }

        .article-card:hover {
            background: var(--brand-light);
            border-color: var(--border);
        }

        .quick-grid-item {
            background: rgba(255, 255, 255, 0.1);
            backdrop-filter: blur(8px);
            border: 1px solid rgba(255, 255, 255, 0.18);
            border-radius: 12px;
            padding: 18px 16px;
            text-align: center;
            transition: all var(--transition);
            color: #fff;
        }

        .quick-grid-item:hover {
            background: rgba(255, 255, 255, 0.22);
            border-color: rgba(255, 255, 255, 0.3);
            transform: translateY(-2px);
            color: #fff;
        }

        @media (max-width: 1024px) {
            .section {
                padding: 56px 0;
            }
        }

        @media (max-width: 768px) {
            .section {
                padding: 44px 0;
            }

            .hamburger {
                display: flex;
            }

            .desktop-nav {
                display: none;
            }

            .team-card-img {
                height: 180px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }

            .section {
                padding: 36px 0;
            }

            .btn-lg {
                padding: 12px 24px;
                font-size: 14px;
            }

            .team-card-img {
                height: 160px;
            }
        }

/* roulang page: category4 */
:root {
            --brand: #0F4C81;
            --brand-dark: #0B3D66;
            --brand-light: #E8F0F8;
            --accent: #2EC4B6;
            --accent-dark: #1FA99D;
            --accent-light: #E0F7F5;
            --cta: #F97316;
            --cta-dark: #D95F0B;
            --cta-light: #FEF0E6;
            --ink: #1E293B;
            --ink-soft: #64748B;
            --ink-faint: #94A3B8;
            --page: #F7F9FC;
            --card: #FFFFFF;
            --border: rgba(15, 76, 129, 0.06);
            --radius: 16px;
            --shadow: 0 8px 24px rgba(15, 76, 129, 0.08);
            --shadow-hover: 0 16px 36px rgba(15, 76, 129, 0.14);
            --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        body {
            font-family: 'Inter', 'PingFang SC', 'Microsoft YaHei', system-ui, sans-serif;
            background: var(--page);
            color: var(--ink);
            line-height: 1.65;
            font-size: 15px;
        }

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

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

        button,
        input {
            font: inherit;
        }

        a:focus-visible,
        button:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
            border-radius: 6px;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        .section {
            padding: 88px 0;
        }

        .section-alt {
            background: #FFFFFF;
        }

        .section-soft {
            background: var(--brand-light);
        }

        .card {
            background: var(--card);
            border-radius: var(--radius);
            border: 1px solid var(--border);
            box-shadow: var(--shadow);
            transition: transform var(--transition), box-shadow var(--transition);
        }

        .card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }

        .badge {
            display: inline-block;
            padding: 4px 12px;
            border-radius: 4px;
            font-size: 12px;
            font-weight: 600;
            letter-spacing: 0.02em;
        }

        .badge-accent {
            background: var(--accent-light);
            color: var(--accent-dark);
        }

        .badge-cta {
            background: var(--cta-light);
            color: var(--cta);
        }

        .badge-brand {
            background: var(--brand-light);
            color: var(--brand);
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: 8px;
            font-weight: 600;
            font-size: 15px;
            transition: all var(--transition);
            border: 2px solid transparent;
            cursor: pointer;
        }

        .btn-primary {
            background: var(--brand);
            color: #fff;
            border-color: var(--brand);
        }

        .btn-primary:hover {
            background: var(--brand-dark);
            border-color: var(--brand-dark);
            transform: translateY(-2px);
        }

        .btn-outline {
            background: transparent;
            color: var(--brand);
            border-color: var(--brand);
        }

        .btn-outline:hover {
            background: var(--brand-light);
            border-color: var(--brand);
            transform: translateY(-2px);
        }

        .btn-cta {
            background: var(--cta);
            color: #fff;
            border-color: var(--cta);
        }

        .btn-cta:hover {
            background: var(--cta-dark);
            border-color: var(--cta-dark);
            transform: translateY(-2px);
        }

        .btn-sm {
            padding: 8px 18px;
            font-size: 13px;
            border-radius: 6px;
        }

        .btn-lg {
            padding: 14px 34px;
            font-size: 16px;
        }

        .nav-link {
            position: relative;
            padding: 6px 0;
            font-size: 14px;
            font-weight: 500;
            color: var(--ink-soft);
            transition: color var(--transition);
        }

        .nav-link::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--brand);
            transition: width var(--transition);
            border-radius: 2px;
        }

        .nav-link:hover,
        .nav-link.active {
            color: var(--brand);
        }

        .nav-link:hover::after,
        .nav-link.active::after {
            width: 100%;
        }

        .divider {
            height: 1px;
            background: var(--border);
            border: none;
        }

        .faq-item {
            border: 1px solid var(--border);
            border-radius: 8px;
            overflow: hidden;
            transition: all var(--transition);
            background: var(--card);
        }

        .faq-item+.faq-item {
            margin-top: 12px;
        }

        .faq-item summary {
            list-style: none;
            cursor: pointer;
            padding: 18px 24px;
            font-weight: 600;
            font-size: 15px;
            color: var(--ink);
            display: flex;
            align-items: center;
            justify-content: space-between;
        }

        .faq-item summary::-webkit-details-marker {
            display: none;
        }

        .faq-item summary::after {
            content: '+';
            font-size: 22px;
            font-weight: 400;
            color: var(--ink-faint);
            transition: transform var(--transition);
        }

        .faq-item[open] summary::after {
            transform: rotate(45deg);
            color: var(--brand);
        }

        .faq-item summary:hover {
            color: var(--brand);
        }

        .faq-item .faq-answer {
            padding: 0 24px 20px 24px;
            color: var(--ink-soft);
            font-size: 14px;
            line-height: 1.7;
        }

        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            cursor: pointer;
            padding: 10px;
            background: transparent;
            border: none;
        }

        .hamburger span {
            width: 24px;
            height: 2.5px;
            background: var(--ink);
            border-radius: 4px;
            transition: all var(--transition);
            transform-origin: center;
        }

        .hamburger.open span:nth-child(1) {
            transform: translateY(7.5px) rotate(45deg);
        }

        .hamburger.open span:nth-child(2) {
            opacity: 0;
        }

        .hamburger.open span:nth-child(3) {
            transform: translateY(-7.5px) rotate(-45deg);
        }

        .mobile-menu {
            display: none;
            background: #fff;
            border-radius: 12px;
            box-shadow: var(--shadow-hover);
            padding: 16px 20px;
        }

        .mobile-menu.open {
            display: block;
            position: absolute;
            top: 100%;
            left: 0;
            right: 0;
            z-index: 50;
        }

        .data-hscroll {
            overflow-x: auto;
            scrollbar-width: thin;
            scrollbar-color: var(--brand) #EDF2F7;
        }

        .data-hscroll::-webkit-scrollbar {
            height: 6px;
        }

        .data-hscroll::-webkit-scrollbar-track {
            background: #EDF2F7;
            border-radius: 6px;
        }

        .data-hscroll::-webkit-scrollbar-thumb {
            background: var(--brand-light);
            border-radius: 6px;
        }

        .data-hscroll::-webkit-scrollbar-thumb:hover {
            background: var(--brand);
        }

        .hero-image-panel {
            position: relative;
            border-radius: var(--radius);
            overflow: hidden;
            min-height: 400px;
        }

        .hero-image-panel img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            position: absolute;
            inset: 0;
        }

        .hero-image-panel .overlay-text {
            position: absolute;
            bottom: 24px;
            left: 24px;
            right: 24px;
            z-index: 5;
            background: rgba(15, 76, 129, 0.82);
            backdrop-filter: blur(8px);
            border-radius: 12px;
            padding: 18px 22px;
        }

        .hero-data-strip {
            position: absolute;
            bottom: -20px;
            left: 24px;
            right: 24px;
            z-index: 8;
            background: #fff;
            border-radius: 16px;
            box-shadow: var(--shadow-hover);
            padding: 16px 20px;
        }

        .hero-data-strip .data-item {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 4px;
        }

        .partner-logo {
            filter: grayscale(1);
            opacity: 0.6;
            transition: all var(--transition);
        }

        .partner-logo:hover {
            filter: grayscale(0);
            opacity: 1;
        }

        /* 分类页特有样式 */
        .category-hero {
            position: relative;
            border-radius: var(--radius);
            overflow: hidden;
            min-height: 360px;
            display: flex;
            align-items: flex-end;
        }

        .category-hero img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            position: absolute;
            inset: 0;
        }

        .category-hero .category-hero-overlay {
            position: relative;
            z-index: 5;
            width: 100%;
            background: linear-gradient(to top, rgba(15, 23, 42, 0.88) 0%, rgba(15, 23, 42, 0.45) 55%, transparent 100%);
            padding: 80px 40px 40px;
        }

        .breadcrumb-item {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.7);
            transition: color var(--transition);
        }

        .breadcrumb-item:hover {
            color: #fff;
        }

        .breadcrumb-separator {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.45);
            margin: 0 8px;
        }

        .topic-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 16px;
            border-radius: 999px;
            font-size: 13px;
            font-weight: 500;
            background: var(--card);
            border: 1px solid var(--border);
            color: var(--ink-soft);
            transition: all var(--transition);
            cursor: pointer;
        }

        .topic-tag:hover,
        .topic-tag:focus-visible {
            border-color: var(--brand);
            color: var(--brand);
            background: var(--brand-light);
        }

        .news-card .news-card-img {
            border-radius: 12px 12px 0 0;
            overflow: hidden;
            aspect-ratio: 16/9;
        }

        .news-card .news-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition);
        }

        .news-card:hover .news-card-img img {
            transform: scale(1.04);
        }

        .rank-bar {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 10px 16px;
            border-radius: 8px;
            background: var(--card);
            border: 1px solid var(--border);
            transition: all var(--transition);
        }

        .rank-bar:hover {
            border-color: var(--accent);
            box-shadow: var(--shadow);
        }

        .rank-number {
            font-size: 22px;
            font-weight: 700;
            color: var(--accent);
            min-width: 40px;
            text-align: center;
        }

        .rank-number.top-1 {
            color: var(--cta);
        }

        .rank-number.top-2 {
            color: var(--brand);
        }

        .rank-number.top-3 {
            color: var(--accent-dark);
        }

        .input-field {
            height: 40px;
            border-radius: 8px;
            border: 1px solid var(--border);
            padding: 0 16px;
            font-size: 14px;
            color: var(--ink);
            background: #fff;
            transition: border-color var(--transition), box-shadow var(--transition);
            width: 100%;
        }

        .input-field:focus {
            border-color: var(--brand);
            box-shadow: 0 0 0 3px rgba(15, 76, 129, 0.1);
            outline: none;
        }

        @media (max-width: 1024px) {
            .section {
                padding: 64px 0;
            }
            .category-hero {
                min-height: 300px;
            }
            .category-hero .category-hero-overlay {
                padding: 60px 28px 32px;
            }
        }

        @media (max-width: 768px) {
            .hamburger {
                display: flex;
            }
            .section {
                padding: 48px 0;
            }
            .category-hero {
                min-height: 260px;
            }
            .category-hero .category-hero-overlay {
                padding: 48px 20px 24px;
            }
            .category-hero .category-hero-overlay h1 {
                font-size: 24px;
                line-height: 1.3;
            }
        }

        @media (max-width: 640px) {
            .container {
                padding: 0 16px;
            }
            .category-hero {
                min-height: 220px;
                border-radius: 12px;
            }
            .category-hero .category-hero-overlay {
                padding: 36px 16px 20px;
            }
            .category-hero .category-hero-overlay h1 {
                font-size: 20px;
            }
            .hero-data-strip {
                position: static;
                margin-top: 16px;
            }
        }

/* roulang page: category5 */
:root {
            --brand: #0F4C81;
            --brand-dark: #0B3D66;
            --brand-light: #E8F0F8;
            --accent: #2EC4B6;
            --accent-dark: #1FA99D;
            --accent-light: #E0F7F5;
            --cta: #F97316;
            --cta-dark: #D95F0B;
            --cta-light: #FEF0E6;
            --ink: #1E293B;
            --ink-soft: #64748B;
            --ink-faint: #94A3B8;
            --page: #F7F9FC;
            --card: #FFFFFF;
            --border: rgba(15, 76, 129, 0.06);
            --radius: 16px;
            --shadow: 0 8px 24px rgba(15, 76, 129, 0.08);
            --shadow-hover: 0 16px 36px rgba(15, 76, 129, 0.14);
            --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
        }
        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
        }
        body {
            font-family: 'Inter', 'PingFang SC', 'Microsoft YaHei', system-ui, sans-serif;
            background: var(--page);
            color: var(--ink);
            line-height: 1.65;
            font-size: 15px;
        }
        img {
            max-width: 100%;
            display: block;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition);
        }
        button, input, textarea {
            font: inherit;
        }
        a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
            border-radius: 6px;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
        .section {
            padding: 72px 0;
        }
        .section-alt {
            background: #FFFFFF;
        }
        .section-soft {
            background: var(--brand-light);
        }
        .card {
            background: var(--card);
            border-radius: var(--radius);
            border: 1px solid var(--border);
            box-shadow: var(--shadow);
            transition: transform var(--transition), box-shadow var(--transition);
        }
        .card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }
        .badge {
            display: inline-block;
            padding: 4px 12px;
            border-radius: 4px;
            font-size: 12px;
            font-weight: 600;
            letter-spacing: 0.02em;
        }
        .badge-accent {
            background: var(--accent-light);
            color: var(--accent-dark);
        }
        .badge-cta {
            background: var(--cta-light);
            color: var(--cta);
        }
        .badge-brand {
            background: var(--brand-light);
            color: var(--brand);
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: 8px;
            font-weight: 600;
            font-size: 15px;
            transition: all var(--transition);
            border: 2px solid transparent;
            cursor: pointer;
        }
        .btn-primary {
            background: var(--brand);
            color: #fff;
            border-color: var(--brand);
        }
        .btn-primary:hover {
            background: var(--brand-dark);
            border-color: var(--brand-dark);
            transform: translateY(-2px);
        }
        .btn-outline {
            background: transparent;
            color: var(--brand);
            border-color: var(--brand);
        }
        .btn-outline:hover {
            background: var(--brand-light);
            border-color: var(--brand);
            transform: translateY(-2px);
        }
        .btn-cta {
            background: var(--cta);
            color: #fff;
            border-color: var(--cta);
        }
        .btn-cta:hover {
            background: var(--cta-dark);
            border-color: var(--cta-dark);
            transform: translateY(-2px);
        }
        .btn-sm {
            padding: 8px 18px;
            font-size: 13px;
            border-radius: 6px;
        }
        .btn-lg {
            padding: 14px 34px;
            font-size: 16px;
        }
        .nav-link {
            position: relative;
            padding: 6px 0;
            font-size: 14px;
            font-weight: 500;
            color: var(--ink-soft);
            transition: color var(--transition);
        }
        .nav-link::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--brand);
            transition: width var(--transition);
            border-radius: 2px;
        }
        .nav-link:hover, .nav-link.active {
            color: var(--brand);
        }
        .nav-link:hover::after, .nav-link.active::after {
            width: 100%;
        }
        .divider {
            height: 1px;
            background: var(--border);
            border: none;
        }
        .faq-item {
            border: 1px solid var(--border);
            border-radius: 8px;
            overflow: hidden;
            transition: all var(--transition);
            background: var(--card);
        }
        .faq-item + .faq-item {
            margin-top: 12px;
        }
        .faq-item summary {
            list-style: none;
            cursor: pointer;
            padding: 18px 24px;
            font-weight: 600;
            font-size: 15px;
            color: var(--ink);
            display: flex;
            align-items: center;
            justify-content: space-between;
        }
        .faq-item summary::-webkit-details-marker {
            display: none;
        }
        .faq-item summary::after {
            content: '+';
            font-size: 22px;
            font-weight: 400;
            color: var(--ink-faint);
            transition: transform var(--transition);
        }
        .faq-item[open] summary::after {
            transform: rotate(45deg);
            color: var(--brand);
        }
        .faq-item summary:hover {
            color: var(--brand);
        }
        .faq-item .faq-answer {
            padding: 0 24px 20px 24px;
            color: var(--ink-soft);
            font-size: 14px;
            line-height: 1.7;
        }
        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            cursor: pointer;
            padding: 10px;
            background: transparent;
            border: none;
        }
        .hamburger span {
            width: 24px;
            height: 2.5px;
            background: var(--ink);
            border-radius: 4px;
            transition: all var(--transition);
            transform-origin: center;
        }
        .hamburger.open span:nth-child(1) {
            transform: translateY(7.5px) rotate(45deg);
        }
        .hamburger.open span:nth-child(2) {
            opacity: 0;
        }
        .hamburger.open span:nth-child(3) {
            transform: translateY(-7.5px) rotate(-45deg);
        }
        .mobile-menu {
            display: none;
            background: #fff;
            border-radius: 12px;
            box-shadow: var(--shadow-hover);
            padding: 16px 20px;
        }
        .mobile-menu.open {
            display: block;
            position: absolute;
            top: 100%;
            left: 0;
            right: 0;
            z-index: 50;
        }
        .tag-pill {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 16px;
            border-radius: 20px;
            font-size: 13px;
            font-weight: 500;
            background: #fff;
            border: 1px solid var(--border);
            color: var(--ink-soft);
            transition: all var(--transition);
            cursor: pointer;
        }
        .tag-pill:hover {
            background: var(--brand-light);
            color: var(--brand);
            border-color: var(--brand);
        }
        .tag-pill.hot {
            background: var(--cta-light);
            color: var(--cta);
            border-color: var(--cta);
        }
        .tag-pill.accent {
            background: var(--accent-light);
            color: var(--accent-dark);
            border-color: var(--accent);
        }
        .post-card .post-img {
            height: 180px;
            overflow: hidden;
            border-radius: var(--radius) var(--radius) 0 0;
        }
        .post-card .post-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .post-card:hover .post-img img {
            transform: scale(1.05);
        }
        .stat-bubble {
            background: #fff;
            border-radius: 12px;
            border: 1px solid var(--border);
            padding: 20px 16px;
            text-align: center;
            transition: all var(--transition);
        }
        .stat-bubble:hover {
            border-color: var(--brand);
            box-shadow: var(--shadow);
        }
        .community-avatar {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 14px;
            color: #fff;
            flex-shrink: 0;
        }
        .sticky-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
        }
        .breadcrumb-link {
            font-size: 13px;
            color: var(--ink-soft);
            transition: color var(--transition);
        }
        .breadcrumb-link:hover {
            color: var(--brand);
        }
        .topic-bar {
            overflow-x: auto;
            scrollbar-width: thin;
            scrollbar-color: var(--brand) #EDF2F7;
        }
        .topic-bar::-webkit-scrollbar {
            height: 4px;
        }
        .topic-bar::-webkit-scrollbar-track {
            background: #EDF2F7;
            border-radius: 4px;
        }
        .topic-bar::-webkit-scrollbar-thumb {
            background: var(--brand-light);
            border-radius: 4px;
        }
        @media (max-width: 1024px) {
            .hamburger {
                display: flex;
            }
            .desktop-nav {
                display: none;
            }
        }
        @media (max-width: 768px) {
            .section {
                padding: 48px 0;
            }
            .container {
                padding: 0 16px;
            }
            .post-card .post-img {
                height: 160px;
            }
        }

/* roulang page: category6 */
:root {
            --brand: #0F4C81;
            --brand-dark: #0B3D66;
            --brand-light: #E8F0F8;
            --accent: #2EC4B6;
            --accent-dark: #1FA99D;
            --accent-light: #E0F7F5;
            --cta: #F97316;
            --cta-dark: #D95F0B;
            --cta-light: #FEF0E6;
            --ink: #1E293B;
            --ink-soft: #64748B;
            --ink-faint: #94A3B8;
            --page: #F7F9FC;
            --card: #FFFFFF;
            --border: rgba(15,76,129,0.06);
            --radius: 16px;
            --shadow: 0 8px 24px rgba(15,76,129,0.08);
            --shadow-hover: 0 16px 36px rgba(15,76,129,0.14);
            --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

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

        body {
            font-family: 'Inter', 'PingFang SC', 'Microsoft YaHei', system-ui, sans-serif;
            background: var(--page);
            color: var(--ink);
            line-height: 1.65;
            font-size: 15px;
        }

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

        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition), background-color var(--transition), border-color var(--transition);
        }

        button, input {
            font: inherit;
        }

        a:focus-visible, button:focus-visible, input:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
            border-radius: 6px;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        .section {
            padding: 72px 0;
        }

        .section-alt {
            background: #FFFFFF;
        }

        .section-soft {
            background: var(--brand-light);
        }

        .card {
            background: var(--card);
            border-radius: var(--radius);
            border: 1px solid var(--border);
            box-shadow: var(--shadow);
            transition: transform var(--transition), box-shadow var(--transition);
        }

        .card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }

        .badge {
            display: inline-block;
            padding: 4px 12px;
            border-radius: 4px;
            font-size: 12px;
            font-weight: 600;
            letter-spacing: 0.02em;
        }

        .badge-accent {
            background: var(--accent-light);
            color: var(--accent-dark);
        }

        .badge-cta {
            background: var(--cta-light);
            color: var(--cta);
        }

        .badge-brand {
            background: var(--brand-light);
            color: var(--brand);
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: 8px;
            font-weight: 600;
            font-size: 15px;
            transition: all var(--transition);
            border: 2px solid transparent;
            cursor: pointer;
            text-align: center;
        }

        .btn-primary {
            background: var(--brand);
            color: #fff;
            border-color: var(--brand);
        }

        .btn-primary:hover {
            background: var(--brand-dark);
            border-color: var(--brand-dark);
            transform: translateY(-2px);
        }

        .btn-outline {
            background: transparent;
            color: var(--brand);
            border-color: var(--brand);
        }

        .btn-outline:hover {
            background: var(--brand-light);
            border-color: var(--brand);
            transform: translateY(-2px);
        }

        .btn-cta {
            background: var(--cta);
            color: #fff;
            border-color: var(--cta);
        }

        .btn-cta:hover {
            background: var(--cta-dark);
            border-color: var(--cta-dark);
            transform: translateY(-2px);
        }

        .btn-sm {
            padding: 8px 18px;
            font-size: 13px;
            border-radius: 6px;
        }

        .btn-lg {
            padding: 14px 34px;
            font-size: 16px;
        }

        .nav-link {
            position: relative;
            padding: 6px 0;
            font-size: 14px;
            font-weight: 500;
            color: var(--ink-soft);
            transition: color var(--transition);
        }

        .nav-link::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--brand);
            transition: width var(--transition);
            border-radius: 2px;
        }

        .nav-link:hover,
        .nav-link.active {
            color: var(--brand);
        }

        .nav-link:hover::after,
        .nav-link.active::after {
            width: 100%;
        }

        .divider {
            height: 1px;
            background: var(--border);
            border: none;
        }

        .faq-item {
            border: 1px solid var(--border);
            border-radius: 8px;
            overflow: hidden;
            transition: all var(--transition);
            background: var(--card);
        }

        .faq-item + .faq-item {
            margin-top: 12px;
        }

        .faq-item summary {
            list-style: none;
            cursor: pointer;
            padding: 18px 24px;
            font-weight: 600;
            font-size: 15px;
            color: var(--ink);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
        }

        .faq-item summary::-webkit-details-marker {
            display: none;
        }

        .faq-item summary::after {
            content: '+';
            font-size: 22px;
            font-weight: 400;
            color: var(--ink-faint);
            transition: transform var(--transition);
            flex-shrink: 0;
        }

        .faq-item[open] summary::after {
            transform: rotate(45deg);
            color: var(--brand);
        }

        .faq-item summary:hover {
            color: var(--brand);
        }

        .faq-item .faq-answer {
            padding: 0 24px 20px 24px;
            color: var(--ink-soft);
            font-size: 14px;
            line-height: 1.7;
        }

        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            cursor: pointer;
            padding: 10px;
            background: transparent;
            border: none;
        }

        .hamburger span {
            width: 24px;
            height: 2.5px;
            background: var(--ink);
            border-radius: 4px;
            transition: all var(--transition);
            transform-origin: center;
        }

        .hamburger.open span:nth-child(1) {
            transform: translateY(7.5px) rotate(45deg);
        }

        .hamburger.open span:nth-child(2) {
            opacity: 0;
        }

        .hamburger.open span:nth-child(3) {
            transform: translateY(-7.5px) rotate(-45deg);
        }

        .mobile-menu {
            display: none;
            background: #fff;
            border-radius: 12px;
            box-shadow: var(--shadow-hover);
            padding: 16px 20px;
            position: absolute;
            top: 100%;
            left: 0;
            right: 0;
            z-index: 50;
        }

        .mobile-menu.open {
            display: block;
        }

        .hero-image-panel {
            position: relative;
            border-radius: var(--radius);
            overflow: hidden;
            min-height: 400px;
            background: var(--brand-light);
        }

        .hero-image-panel img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            position: absolute;
            inset: 0;
        }

        .hero-image-panel .overlay-text {
            position: absolute;
            bottom: 24px;
            left: 24px;
            right: 24px;
            z-index: 5;
            background: rgba(15,76,129,0.85);
            backdrop-filter: blur(8px);
            border-radius: 12px;
            padding: 18px 22px;
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
            font-size: 13px;
            color: var(--ink-soft);
        }

        .breadcrumb a {
            color: var(--brand);
            transition: color var(--transition);
        }

        .breadcrumb a:hover {
            color: var(--brand-dark);
        }

        .breadcrumb span.sep {
            color: var(--ink-faint);
        }

        .benefit-card {
            background: #fff;
            border-radius: 12px;
            border: 1px solid var(--border);
            padding: 20px;
            transition: all var(--transition);
            box-shadow: var(--shadow);
        }

        .benefit-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-hover);
            border-color: var(--brand-light);
        }

        .article-card {
            display: flex;
            flex-direction: column;
            background: #fff;
            border-radius: var(--radius);
            border: 1px solid var(--border);
            box-shadow: var(--shadow);
            overflow: hidden;
            transition: transform var(--transition), box-shadow var(--transition);
        }

        .article-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }

        .article-card .article-img {
            height: 180px;
            background: var(--brand-light);
            overflow: hidden;
            border-radius: 0;
        }

        .article-card .article-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }

        .article-card:hover .article-img img {
            transform: scale(1.05);
        }

        .article-card .article-body {
            padding: 20px;
            display: flex;
            flex-direction: column;
            gap: 10px;
            flex: 1;
        }

        .level-bar {
            display: grid;
            grid-template-columns: 1fr 2fr;
            align-items: center;
            gap: 16px;
            padding: 16px 0;
            border-bottom: 1px solid var(--border);
        }

        .level-bar:last-child {
            border-bottom: none;
        }

        .level-name {
            font-weight: 700;
            color: var(--ink);
        }

        .level-progress {
            height: 8px;
            background: #EDF2F7;
            border-radius: 6px;
            overflow: hidden;
            position: relative;
        }

        .level-progress > span {
            display: block;
            height: 100%;
            border-radius: 6px;
            background: var(--brand);
        }

        .level-progress > span.accent {
            background: var(--accent);
        }

        .level-progress > span.cta {
            background: var(--cta);
        }

        .member-header {
            position: relative;
            border-radius: var(--radius);
            overflow: hidden;
            min-height: 320px;
            background: var(--brand);
            display: flex;
            align-items: center;
            padding: 48px;
            color: #fff;
        }

        .member-header::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15,76,129,0.9) 0%, rgba(15,76,129,0.7) 40%, rgba(46,196,182,0.35) 100%);
            z-index: 1;
        }

        .member-header .header-content {
            position: relative;
            z-index: 2;
            max-width: 680px;
        }

        .member-header .header-img {
            position: absolute;
            right: 0;
            bottom: 0;
            top: 0;
            width: 45%;
            z-index: 0;
            object-fit: cover;
            opacity: 0.7;
            mask-image: linear-gradient(to right, transparent, black);
        }

        @media (max-width: 1024px) {
            .section {
                padding: 56px 0;
            }
            .container {
                padding: 0 20px;
            }
            .member-header {
                padding: 36px;
                min-height: 280px;
            }
            .member-header .header-img {
                width: 55%;
                opacity: 0.4;
            }
        }

        @media (max-width: 768px) {
            .section {
                padding: 40px 0;
            }
            .member-header {
                padding: 24px;
                min-height: 240px;
            }
            .member-header .header-img {
                width: 100%;
                opacity: 0.2;
            }
            .hamburger {
                display: flex;
            }
            .desktop-nav {
                display: none !important;
            }
            .level-bar {
                grid-template-columns: 1fr;
                gap: 8px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .member-header {
                padding: 20px;
                min-height: 220px;
            }
            .btn-lg {
                padding: 12px 24px;
                font-size: 15px;
            }
        }

        .footer-link {
            color: rgba(255,255,255,0.6);
            transition: color var(--transition);
        }
        .footer-link:hover {
            color: #fff;
        }