/* roulang page: index */
:root {
            --brand-blue: #3A7BD5;
            --brand-blue-dark: #2E68B5;
            --brand-blue-light: #5B9BD5;
            --brand-blue-soft: #EEF3F8;
            --brand-blue-pale: #F5F7FA;
            --ink-strong: #1F2937;
            --ink-body: #4B5563;
            --ink-muted: #6B7280;
            --accent-orange: #F59E0B;
            --accent-green: #10B981;
            --border-light: #E5E9F0;
            --shadow-card: 0 2px 8px rgba(15, 35, 70, 0.06);
            --shadow-card-hover: 0 12px 28px rgba(15, 35, 70, 0.12);
            --radius-card: 14px;
            --radius-btn: 9px;
            --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
            --transition-base: 0.2s ease;
        }
        * { box-sizing: border-box; }
        html { scroll-behavior: smooth; }
        body {
            font-family: var(--font-sans);
            color: var(--ink-body);
            background-color: #ffffff;
            margin: 0;
            line-height: 1.7;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        a { color: var(--brand-blue); text-decoration: none; transition: color var(--transition-base); }
        a:hover { color: var(--brand-blue-dark); }
        a:focus-visible { outline: 2px solid var(--brand-blue); outline-offset: 2px; }
        img { max-width: 100%; height: auto; display: block; }

        .container { max-width: 1200px; }

        .top-bar {
            background: var(--ink-strong);
            color: rgba(255,255,255,0.85);
            font-size: 12.5px;
            height: 34px;
            display: flex;
            align-items: center;
            letter-spacing: 0.3px;
        }
        .top-bar .container { display: flex; align-items: center; justify-content: space-between; height: 100%; }
        .top-bar .domain-info { display: flex; align-items: center; gap: 8px; }
        .top-bar .domain-info i { font-size: 12px; opacity: 0.7; }
        .top-bar .quick-actions { display: flex; align-items: center; gap: 18px; }
        .top-bar .quick-actions a { color: rgba(255,255,255,0.9); font-weight: 500; transition: color var(--transition-base); }
        .top-bar .quick-actions a:hover { color: #ffffff; }
        .top-bar .quick-actions .divider { width: 1px; height: 14px; background: rgba(255,255,255,0.25); }
        .top-bar .top-download {
            background: var(--brand-blue);
            color: #fff;
            padding: 3px 12px;
            border-radius: 20px;
            font-weight: 600;
            font-size: 12px;
            transition: background var(--transition-base);
        }
        .top-bar .top-download:hover { background: var(--brand-blue-dark); color: #fff; }

        .main-header {
            background: #ffffff;
            box-shadow: 0 2px 12px rgba(0,0,0,0.04);
            position: sticky;
            top: 0;
            z-index: 1030;
            padding: 0;
            border-bottom: 1px solid var(--border-light);
        }
        .navbar-brand-custom {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.45rem;
            font-weight: 700;
            color: var(--ink-strong);
            letter-spacing: 0.5px;
        }
        .navbar-brand-custom .brand-icon {
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, var(--brand-blue), var(--brand-blue-light));
            border-radius: 10px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 18px;
            box-shadow: 0 4px 10px rgba(58, 123, 213, 0.3);
        }
        .navbar-brand-custom:hover { color: var(--ink-strong); }
        .main-nav { padding: 12px 0; }
        .main-nav .nav-link {
            font-size: 15px;
            color: var(--ink-body);
            font-weight: 600;
            padding: 8px 14px !important;
            border-radius: 8px;
            transition: all var(--transition-base);
            position: relative;
        }
        .main-nav .nav-link:hover,
        .main-nav .nav-link.active {
            color: var(--brand-blue);
            background: var(--brand-blue-soft);
        }
        .main-nav .nav-link::after {
            content: "";
            display: block;
            width: 0;
            height: 2px;
            background: var(--brand-blue);
            border-radius: 2px;
            margin-top: 4px;
            transition: width var(--transition-base);
        }
        .main-nav .nav-link.active::after,
        .main-nav .nav-link:hover::after { width: 100%; }
        .header-search {
            position: relative;
            margin-left: 18px;
        }
        .header-search input {
            border-radius: 30px;
            border: 1px solid var(--border-light);
            padding: 8px 36px 8px 16px;
            font-size: 13.5px;
            width: 200px;
            transition: all var(--transition-base);
            background: var(--brand-blue-pale);
        }
        .header-search input:focus {
            outline: none;
            border-color: var(--brand-blue);
            box-shadow: 0 0 0 3px rgba(58,123,213,0.12);
            background: #fff;
            width: 230px;
        }
        .header-search i {
            position: absolute;
            right: 14px;
            top: 50%;
            transform: translateY(-50%);
            color: var(--ink-muted);
            font-size: 13px;
            pointer-events: none;
        }
        .navbar-toggler { border: none; padding: 8px 10px; font-size: 20px; color: var(--ink-strong); }
        .navbar-toggler:focus { box-shadow: none; }

        .hero-mini {
            background: linear-gradient(135deg, #F0F6FF 0%, #E6EFFB 100%);
            padding: 42px 0 48px;
            position: relative;
            overflow: hidden;
        }
        .hero-mini::before {
            content: "";
            position: absolute;
            top: -120px;
            right: -100px;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(58,123,213,0.08) 0%, transparent 70%);
            border-radius: 50%;
        }
        .hero-mini .row { position: relative; z-index: 2; }
        .hero-title {
            font-size: 2.6rem;
            font-weight: 800;
            color: var(--ink-strong);
            line-height: 1.25;
            margin-bottom: 16px;
            letter-spacing: 0.5px;
        }
        .hero-title .highlight { color: var(--brand-blue); }
        .hero-subtitle {
            font-size: 1.08rem;
            color: var(--ink-body);
            max-width: 600px;
            line-height: 1.8;
            margin-bottom: 24px;
        }
        .hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-bottom: 28px; }
        .btn-brand {
            background: var(--brand-blue);
            color: #fff;
            border: none;
            padding: 10px 22px;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 15px;
            transition: all var(--transition-base);
            box-shadow: 0 6px 16px rgba(58,123,213,0.25);
        }
        .btn-brand:hover, .btn-brand:focus {
            background: var(--brand-blue-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 10px 20px rgba(58,123,213,0.35);
        }
        .btn-outline-brand {
            background: #fff;
            color: var(--brand-blue);
            border: 1px solid var(--brand-blue);
            padding: 10px 22px;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 15px;
            transition: all var(--transition-base);
        }
        .btn-outline-brand:hover, .btn-outline-brand:focus {
            background: var(--brand-blue-soft);
            color: var(--brand-blue-dark);
            border-color: var(--brand-blue-dark);
            transform: translateY(-2px);
        }
        .hero-stats-mini {
            display: flex;
            flex-wrap: wrap;
            gap: 26px;
            margin-top: 10px;
        }
        .hero-stat-item {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            color: var(--ink-body);
        }
        .hero-stat-item .stat-number {
            font-weight: 800;
            font-size: 1.35rem;
            color: var(--brand-blue-dark);
            line-height: 1;
        }
        .hero-visual {
            display: flex;
            align-items: center;
            justify-content: center;
            height: 100%;
            min-height: 240px;
        }
        .hero-visual .highlight-card {
            background: #fff;
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            padding: 24px 28px;
            width: 100%;
            max-width: 420px;
            border-left: 5px solid var(--brand-blue);
            position: relative;
        }
        .hero-visual .highlight-card .live-dot {
            display: inline-block;
            width: 10px;
            height: 10px;
            background: var(--accent-green);
            border-radius: 50%;
            margin-right: 8px;
            animation: pulse-dot 1.6s infinite;
        }
        @keyframes pulse-dot {
            0%, 100% { box-shadow: 0 0 0 0 rgba(16,185,129,0.5); }
            50% { box-shadow: 0 0 0 6px rgba(16,185,129,0); }
        }
        .hero-visual .match-row {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 10px 0;
            border-bottom: 1px solid var(--border-light);
            font-weight: 600;
            color: var(--ink-strong);
        }
        .hero-visual .match-row .score {
            background: var(--brand-blue-pale);
            padding: 4px 12px;
            border-radius: 20px;
            font-weight: 700;
            color: var(--brand-blue);
        }
        .hero-visual .match-row .badge-live {
            background: var(--accent-green);
            color: #fff;
            font-size: 11px;
            padding: 3px 10px;
            border-radius: 20px;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }

        .section-block {
            padding: 52px 0;
            position: relative;
        }
        .section-block.bg-soft { background: var(--brand-blue-pale); }
        .section-block.bg-white { background: #fff; }
        .section-block .section-eyebrow {
            display: inline-block;
            font-size: 12.5px;
            font-weight: 700;
            letter-spacing: 1.5px;
            color: var(--brand-blue);
            text-transform: uppercase;
            margin-bottom: 8px;
        }
        .section-block .section-title {
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--ink-strong);
            margin-bottom: 14px;
            line-height: 1.3;
        }
        .section-block .section-desc {
            font-size: 1.02rem;
            color: var(--ink-body);
            max-width: 780px;
            margin-bottom: 32px;
            line-height: 1.8;
        }

        .pain-point-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 22px;
        }
        .pain-point-card {
            background: #fff;
            border-radius: var(--radius-card);
            padding: 24px 20px;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-light);
            transition: all var(--transition-base);
        }
        .pain-point-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
        }
        .pain-point-card .pp-icon {
            width: 48px;
            height: 48px;
            background: var(--brand-blue-soft);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            color: var(--brand-blue);
            margin-bottom: 16px;
        }
        .pain-point-card h3 {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--ink-strong);
            margin-bottom: 10px;
        }
        .pain-point-card p {
            font-size: 14.5px;
            color: var(--ink-body);
            margin-bottom: 0;
            line-height: 1.7;
        }

        .match-scroll {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
        }
        .match-card-mini {
            background: #fff;
            border-radius: var(--radius-card);
            padding: 18px 20px;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-light);
            flex: 1 1 200px;
            transition: all var(--transition-base);
        }
        .match-card-mini:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
        }
        .match-card-mini .match-meta {
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 12px;
            color: var(--ink-muted);
            margin-bottom: 12px;
        }
        .match-card-mini .teams {
            font-weight: 700;
            color: var(--ink-strong);
            font-size: 16px;
            margin-bottom: 6px;
        }
        .match-card-mini .match-info {
            font-size: 13.5px;
            color: var(--ink-body);
        }
        .badge-live-mini {
            background: var(--accent-green);
            color: #fff;
            font-size: 11px;
            padding: 3px 10px;
            border-radius: 20px;
            font-weight: 700;
        }
        .badge-upcoming {
            background: var(--brand-blue-soft);
            color: var(--brand-blue-dark);
            font-size: 11px;
            padding: 3px 10px;
            border-radius: 20px;
            font-weight: 600;
        }
        .badge-ended {
            background: #E5E7EB;
            color: var(--ink-muted);
            font-size: 11px;
            padding: 3px 10px;
            border-radius: 20px;
            font-weight: 600;
        }

        .service-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .service-card {
            background: #fff;
            border-radius: var(--radius-card);
            padding: 28px 24px;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-light);
            transition: all var(--transition-base);
            position: relative;
            overflow: hidden;
        }
        .service-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-4px);
        }
        .service-card .svc-icon {
            width: 56px;
            height: 56px;
            background: var(--brand-blue-soft);
            border-radius: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            color: var(--brand-blue);
            margin-bottom: 18px;
        }
        .service-card h3 {
            font-size: 1.28rem;
            font-weight: 700;
            color: var(--ink-strong);
            margin-bottom: 10px;
        }
        .service-card p {
            font-size: 14.8px;
            color: var(--ink-body);
            margin-bottom: 0;
            line-height: 1.75;
        }

        .data-dashboard {
            background: linear-gradient(135deg, #1F2937 0%, #2E3B4E 100%);
            border-radius: 20px;
            padding: 38px 36px;
            color: #fff;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
        }
        .data-dashboard .data-item {
            text-align: center;
            min-width: 120px;
        }
        .data-dashboard .data-number {
            font-size: 2.4rem;
            font-weight: 800;
            color: #fff;
            display: block;
            line-height: 1.2;
        }
        .data-dashboard .data-label {
            font-size: 14px;
            color: rgba(255,255,255,0.75);
            margin-top: 4px;
        }
        .data-dashboard .divider-vertical {
            width: 1px;
            height: 80px;
            background: rgba(255,255,255,0.2);
        }

        .steps-horizontal {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            counter-reset: step;
        }
        .step-card {
            flex: 1 1 220px;
            background: #fff;
            border-radius: var(--radius-card);
            padding: 26px 22px;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-light);
            counter-increment: step;
            position: relative;
            transition: all var(--transition-base);
        }
        .step-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
        }
        .step-card::before {
            content: counter(step);
            position: absolute;
            top: 22px;
            right: 22px;
            font-size: 2.4rem;
            font-weight: 800;
            color: var(--brand-blue-soft);
            line-height: 1;
        }
        .step-card h3 {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--ink-strong);
            margin-bottom: 10px;
        }
        .step-card p {
            font-size: 14.5px;
            color: var(--ink-body);
            margin-bottom: 0;
            line-height: 1.7;
        }

        .case-wall {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .case-card {
            background: #fff;
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-light);
            transition: all var(--transition-base);
        }
        .case-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-4px);
        }
        .case-card img {
            width: 100%;
            height: 180px;
            object-fit: cover;
            border-radius: var(--radius-card) var(--radius-card) 0 0;
        }
        .case-card .case-body {
            padding: 18px 20px;
        }
        .case-card .case-body h3 {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--ink-strong);
            margin-bottom: 8px;
        }
        .case-card .case-body p {
            font-size: 14px;
            color: var(--ink-body);
            margin-bottom: 10px;
            line-height: 1.65;
        }
        .case-card .case-meta {
            font-size: 12.5px;
            color: var(--ink-muted);
            display: flex;
            gap: 16px;
        }

        .news-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .news-item {
            background: #fff;
            border-radius: var(--radius-card);
            padding: 18px 22px;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-light);
            display: flex;
            align-items: center;
            gap: 18px;
            transition: all var(--transition-base);
        }
        .news-item:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateX(4px);
        }
        .news-item .news-icon {
            width: 44px;
            height: 44px;
            background: var(--brand-blue-soft);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            color: var(--brand-blue);
            flex-shrink: 0;
        }
        .news-item .news-content {
            flex: 1;
        }
        .news-item .news-content h3 {
            font-size: 1.08rem;
            font-weight: 700;
            color: var(--ink-strong);
            margin-bottom: 4px;
        }
        .news-item .news-content p {
            font-size: 13.8px;
            color: var(--ink-body);
            margin-bottom: 0;
        }
        .news-item .news-date {
            font-size: 12.5px;
            color: var(--ink-muted);
            white-space: nowrap;
        }

        .topic-track {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 18px;
        }
        .topic-card {
            background: #fff;
            border-radius: var(--radius-card);
            padding: 22px 18px;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-light);
            text-align: center;
            transition: all var(--transition-base);
        }
        .topic-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
        }
        .topic-card .topic-icon {
            font-size: 28px;
            color: var(--brand-blue);
            margin-bottom: 12px;
        }
        .topic-card h3 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--ink-strong);
            margin-bottom: 8px;
        }
        .topic-card p {
            font-size: 13.5px;
            color: var(--ink-body);
            margin-bottom: 0;
        }

        .brand-intro {
            background: var(--brand-blue-soft);
            border-radius: 20px;
            padding: 40px 44px;
            position: relative;
            overflow: hidden;
        }
        .brand-intro::after {
            content: "";
            position: absolute;
            bottom: -80px;
            right: -60px;
            width: 250px;
            height: 250px;
            background: rgba(58,123,213,0.05);
            border-radius: 50%;
        }
        .brand-intro h2 {
            font-size: 1.7rem;
            font-weight: 700;
            color: var(--ink-strong);
            margin-bottom: 18px;
        }
        .brand-intro p {
            font-size: 1.01rem;
            color: var(--ink-body);
            line-height: 1.85;
            margin-bottom: 14px;
            position: relative;
            z-index: 2;
        }

        .partner-wall {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            justify-content: center;
        }
        .partner-logo-placeholder {
            width: 140px;
            height: 64px;
            background: #fff;
            border-radius: 12px;
            border: 1px dashed var(--border-light);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--ink-muted);
            font-size: 13px;
            font-weight: 500;
            transition: all var(--transition-base);
        }
        .partner-logo-placeholder:hover {
            border-color: var(--brand-blue);
            color: var(--brand-blue);
            box-shadow: var(--shadow-card);
        }

        .accordion-custom .accordion-item {
            border: 1px solid var(--border-light);
            border-radius: 10px;
            margin-bottom: 12px;
            overflow: hidden;
            box-shadow: var(--shadow-card);
        }
        .accordion-custom .accordion-button {
            background: #fff;
            font-weight: 700;
            color: var(--ink-strong);
            padding: 16px 20px;
            font-size: 15px;
            box-shadow: none;
        }
        .accordion-custom .accordion-button:not(.collapsed) {
            background: var(--brand-blue-pale);
            color: var(--brand-blue-dark);
        }
        .accordion-custom .accordion-button:focus {
            box-shadow: none;
            border-color: var(--brand-blue);
        }
        .accordion-custom .accordion-body {
            font-size: 14.8px;
            color: var(--ink-body);
            padding: 18px 20px;
            line-height: 1.75;
        }

        .guarantee-strip {
            background: #fff;
            border-radius: 20px;
            padding: 30px 28px;
            box-shadow: var(--shadow-card);
            display: flex;
            flex-wrap: wrap;
            gap: 22px;
            justify-content: space-between;
            border: 1px solid var(--border-light);
        }
        .guarantee-item {
            display: flex;
            align-items: center;
            gap: 12px;
            font-weight: 600;
            color: var(--ink-strong);
            font-size: 15px;
        }
        .guarantee-item i {
            color: var(--brand-blue);
            font-size: 20px;
            width: 24px;
            text-align: center;
        }

        .cta-form-section {
            background: linear-gradient(135deg, #F0F6FF, #E0EBF9);
            border-radius: 20px;
            padding: 44px 40px;
            display: flex;
            flex-wrap: wrap;
            gap: 36px;
            align-items: center;
        }
        .cta-form-section .cta-text {
            flex: 1 1 320px;
        }
        .cta-form-section .cta-text h2 {
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--ink-strong);
            margin-bottom: 12px;
        }
        .cta-form-section .cta-text p {
            font-size: 1.02rem;
            color: var(--ink-body);
            line-height: 1.8;
            margin-bottom: 0;
        }
        .cta-form-section .cta-form {
            flex: 1 1 320px;
            background: #fff;
            border-radius: var(--radius-card);
            padding: 28px;
            box-shadow: var(--shadow-card);
        }
        .cta-form-section .form-control {
            border: 1px solid var(--border-light);
            border-radius: 8px;
            padding: 10px 14px;
            font-size: 14.5px;
            transition: border var(--transition-base), box-shadow var(--transition-base);
        }
        .cta-form-section .form-control:focus {
            border-color: var(--brand-blue);
            box-shadow: 0 0 0 3px rgba(58,123,213,0.15);
        }
        .cta-form-section .form-label {
            font-weight: 600;
            font-size: 13.5px;
            color: var(--ink-strong);
        }

        .site-footer {
            background: #1E2A3A;
            color: rgba(255,255,255,0.75);
            padding: 48px 0 24px;
            font-size: 14px;
        }
        .site-footer .footer-logo {
            font-size: 1.5rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .site-footer .footer-logo i {
            color: var(--brand-blue-light);
        }
        .site-footer h5 {
            color: #fff;
            font-weight: 700;
            font-size: 15px;
            margin-bottom: 16px;
        }
        .site-footer ul {
            list-style: none;
            padding-left: 0;
            margin-bottom: 0;
        }
        .site-footer ul li {
            margin-bottom: 10px;
        }
        .site-footer ul li a {
            color: rgba(255,255,255,0.7);
            transition: color var(--transition-base);
        }
        .site-footer ul li a:hover {
            color: #fff;
            text-decoration: underline;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.12);
            margin-top: 32px;
            padding-top: 20px;
            font-size: 13px;
            color: rgba(255,255,255,0.55);
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 12px;
        }

        @media (max-width: 992px) {
            .hero-title { font-size: 2.2rem; }
            .service-grid { grid-template-columns: repeat(2, 1fr); }
            .case-wall { grid-template-columns: repeat(2, 1fr); }
            .topic-track { grid-template-columns: repeat(2, 1fr); }
            .pain-point-grid { grid-template-columns: repeat(2, 1fr); }
            .header-search input { width: 160px; }
            .header-search input:focus { width: 200px; }
        }
        @media (max-width: 768px) {
            .hero-title { font-size: 1.9rem; }
            .hero-mini { padding: 28px 0 32px; }
            .service-grid, .case-wall, .pain-point-grid, .topic-track { grid-template-columns: 1fr; }
            .data-dashboard { flex-direction: column; align-items: stretch; text-align: center; padding: 28px 20px; }
            .data-dashboard .divider-vertical { width: 100%; height: 1px; }
            .brand-intro { padding: 28px 22px; }
            .cta-form-section { padding: 28px 22px; }
            .top-bar .quick-actions .hide-mobile { display: none; }
        }
        @media (max-width: 576px) {
            .hero-title { font-size: 1.7rem; }
            .hero-stats-mini { gap: 16px; }
            .header-search { display: none; }
            .match-card-mini { flex: 1 1 100%; }
            .guarantee-strip { flex-direction: column; gap: 16px; }
        }

/* roulang page: category2 */
:root {
            --brand-blue: #3A7BD5;
            --brand-blue-dark: #2E68B5;
            --brand-blue-light: #5B9BD5;
            --brand-blue-soft: #EEF3F8;
            --brand-blue-pale: #F5F7FA;
            --ink-strong: #1F2937;
            --ink-body: #4B5563;
            --ink-muted: #6B7280;
            --accent-orange: #F59E0B;
            --accent-green: #10B981;
            --border-light: #E5E9F0;
            --shadow-card: 0 2px 8px rgba(15, 35, 70, 0.06);
            --shadow-card-hover: 0 12px 28px rgba(15, 35, 70, 0.12);
            --radius-card: 14px;
            --radius-btn: 9px;
            --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
            --transition-base: 0.2s ease;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-sans);
            color: var(--ink-body);
            background-color: #ffffff;
            margin: 0;
            line-height: 1.7;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        a {
            color: var(--brand-blue);
            text-decoration: none;
            transition: color var(--transition-base);
        }
        a:hover {
            color: var(--brand-blue-dark);
        }
        a:focus-visible {
            outline: 2px solid var(--brand-blue);
            outline-offset: 2px;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            max-width: 1200px;
        }

        /* Top bar */
        .top-bar {
            background: #1E2A3A;
            color: rgba(255, 255, 255, 0.75);
            font-size: 12.5px;
            height: 36px;
            line-height: 36px;
            position: relative;
            z-index: 1031;
        }
        .top-bar .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }
        .top-bar .domain-info {
            display: flex;
            align-items: center;
            gap: 8px;
            overflow: hidden;
            white-space: nowrap;
        }
        .top-bar .domain-info i {
            font-size: 12px;
            opacity: 0.7;
        }
        .top-bar .quick-actions {
            display: flex;
            align-items: center;
            gap: 14px;
        }
        .top-bar .quick-actions a {
            color: rgba(255, 255, 255, 0.9);
            font-weight: 500;
            transition: color var(--transition-base);
            font-size: 12.5px;
        }
        .top-bar .quick-actions a:hover {
            color: #ffffff;
        }
        .top-bar .quick-actions .divider {
            width: 1px;
            height: 14px;
            background: rgba(255, 255, 255, 0.25);
        }
        @media (max-width: 768px) {
            .top-bar .domain-info span {
                max-width: 140px;
                overflow: hidden;
                text-overflow: ellipsis;
            }
            .top-bar .quick-actions .hide-sm {
                display: none;
            }
        }

        /* Main header */
        .main-header {
            background: #ffffff;
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.04);
            position: sticky;
            top: 0;
            z-index: 1030;
            padding: 0;
            border-bottom: 1px solid var(--border-light);
        }
        .navbar-brand-custom {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.45rem;
            font-weight: 700;
            color: var(--ink-strong);
            letter-spacing: 0.5px;
        }
        .navbar-brand-custom .brand-icon {
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, var(--brand-blue), var(--brand-blue-light));
            border-radius: 10px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 18px;
            box-shadow: 0 4px 10px rgba(58, 123, 213, 0.3);
        }
        .navbar-brand-custom:hover {
            color: var(--ink-strong);
        }
        .main-nav {
            padding: 12px 0;
        }
        .main-nav .nav-link {
            font-size: 15px;
            color: var(--ink-body);
            font-weight: 600;
            padding: 8px 14px !important;
            border-radius: 8px;
            transition: all var(--transition-base);
            position: relative;
        }
        .main-nav .nav-link:hover,
        .main-nav .nav-link.active {
            color: var(--brand-blue);
            background: var(--brand-blue-soft);
        }
        .main-nav .nav-link::after {
            content: "";
            display: block;
            width: 0;
            height: 2px;
            background: var(--brand-blue);
            border-radius: 2px;
            margin-top: 4px;
            transition: width var(--transition-base);
        }
        .main-nav .nav-link.active::after,
        .main-nav .nav-link:hover::after {
            width: 100%;
        }
        .header-search {
            position: relative;
            margin-left: 18px;
        }
        .header-search input {
            border-radius: 30px;
            border: 1px solid var(--border-light);
            padding: 8px 36px 8px 16px;
            font-size: 13.5px;
            width: 200px;
            transition: all var(--transition-base);
            background: var(--brand-blue-pale);
        }
        .header-search input:focus {
            outline: none;
            border-color: var(--brand-blue);
            box-shadow: 0 0 0 3px rgba(58, 123, 213, 0.12);
            background: #fff;
            width: 230px;
        }
        .header-search i {
            position: absolute;
            right: 14px;
            top: 50%;
            transform: translateY(-50%);
            color: var(--ink-muted);
            font-size: 13px;
            pointer-events: none;
        }
        .navbar-toggler {
            border: none;
            padding: 8px 10px;
            font-size: 20px;
            color: var(--ink-strong);
        }
        .navbar-toggler:focus {
            box-shadow: none;
        }
        @media (max-width: 991.98px) {
            .header-search {
                display: none;
            }
            .navbar-collapse {
                padding-top: 12px;
                padding-bottom: 12px;
            }
        }

        /* Breadcrumb */
        .breadcrumb-section {
            background: var(--brand-blue-pale);
            border-bottom: 1px solid var(--border-light);
            padding: 12px 0;
            font-size: 14px;
        }
        .breadcrumb-section .breadcrumb-wrap {
            display: flex;
            align-items: center;
            gap: 8px;
            color: var(--ink-muted);
        }
        .breadcrumb-section .breadcrumb-wrap a {
            color: var(--ink-body);
            font-weight: 500;
        }
        .breadcrumb-section .breadcrumb-wrap a:hover {
            color: var(--brand-blue);
        }
        .breadcrumb-section .breadcrumb-wrap .separator {
            color: #c5cdd8;
        }
        .breadcrumb-section .breadcrumb-wrap .current {
            color: var(--brand-blue);
            font-weight: 600;
        }

        /* Category header compact */
        .category-head {
            background: #ffffff;
            padding: 42px 0 36px;
            border-bottom: 1px solid var(--border-light);
            position: relative;
            overflow: hidden;
        }
        .category-head::after {
            content: "";
            position: absolute;
            top: -80px;
            right: -80px;
            width: 350px;
            height: 350px;
            background: radial-gradient(circle, rgba(58, 123, 213, 0.07) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .category-head .head-content {
            position: relative;
            z-index: 2;
        }
        .category-head .meta-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--brand-blue-soft);
            color: var(--brand-blue);
            font-size: 13px;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 20px;
            margin-bottom: 14px;
        }
        .category-head h1 {
            font-size: 2.4rem;
            font-weight: 800;
            color: var(--ink-strong);
            margin-bottom: 14px;
            line-height: 1.25;
            letter-spacing: 0.5px;
        }
        .category-head h1 .highlight {
            color: var(--brand-blue);
        }
        .category-head .lead-text {
            font-size: 1.05rem;
            color: var(--ink-body);
            max-width: 680px;
            line-height: 1.8;
            margin-bottom: 0;
        }
        .category-head .head-stats {
            display: flex;
            flex-wrap: wrap;
            gap: 24px;
            margin-top: 20px;
        }
        .category-head .head-stats .stat-item {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--ink-muted);
        }
        .category-head .head-stats .stat-item i {
            color: var(--brand-blue);
            font-size: 16px;
        }
        @media (max-width: 768px) {
            .category-head {
                padding: 28px 0 26px;
            }
            .category-head h1 {
                font-size: 1.8rem;
            }
            .category-head .lead-text {
                font-size: 0.95rem;
            }
            .category-head .head-stats {
                gap: 14px;
                flex-wrap: wrap;
            }
        }

        /* Filter bar */
        .filter-bar {
            background: #ffffff;
            padding: 18px 0;
            border-bottom: 1px solid var(--border-light);
        }
        .filter-bar .filter-row {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 10px;
        }
        .filter-bar .filter-label {
            font-size: 14px;
            font-weight: 600;
            color: var(--ink-strong);
            margin-right: 6px;
            white-space: nowrap;
        }
        .filter-bar .filter-btn {
            border: 1px solid var(--border-light);
            background: #fff;
            color: var(--ink-body);
            font-size: 13.5px;
            font-weight: 500;
            padding: 7px 16px;
            border-radius: 20px;
            cursor: pointer;
            transition: all var(--transition-base);
            white-space: nowrap;
        }
        .filter-bar .filter-btn:hover {
            border-color: var(--brand-blue);
            color: var(--brand-blue);
            background: var(--brand-blue-soft);
        }
        .filter-bar .filter-btn.active {
            background: var(--brand-blue);
            border-color: var(--brand-blue);
            color: #fff;
        }
        .filter-bar .filter-btn:focus-visible {
            outline: 2px solid var(--brand-blue);
            outline-offset: 2px;
        }
        .filter-bar .sort-select {
            margin-left: auto;
            border: 1px solid var(--border-light);
            border-radius: 8px;
            padding: 7px 14px;
            font-size: 13.5px;
            color: var(--ink-body);
            background: #fff;
            cursor: pointer;
            transition: all var(--transition-base);
        }
        .filter-bar .sort-select:focus {
            outline: none;
            border-color: var(--brand-blue);
            box-shadow: 0 0 0 3px rgba(58, 123, 213, 0.1);
        }
        @media (max-width: 768px) {
            .filter-bar .sort-select {
                margin-left: 0;
                width: 100%;
            }
            .filter-bar .filter-row {
                gap: 8px;
            }
        }

        /* Replay list */
        .replay-list-section {
            background: var(--brand-blue-pale);
            padding: 52px 0;
        }
        .replay-list-section .section-head {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 28px;
            flex-wrap: wrap;
            gap: 12px;
        }
        .replay-list-section .section-head h2 {
            font-size: 1.55rem;
            font-weight: 700;
            color: var(--ink-strong);
            margin-bottom: 0;
        }
        .replay-list-section .section-head .count-hint {
            font-size: 14px;
            color: var(--ink-muted);
        }
        .replay-card {
            background: #ffffff;
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            transition: all var(--transition-base);
            display: flex;
            flex-direction: row;
            height: 100%;
            border: 1px solid var(--border-light);
        }
        .replay-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
            border-color: rgba(58, 123, 213, 0.2);
        }
        .replay-card .card-thumb {
            flex: 0 0 220px;
            min-height: 160px;
            position: relative;
            overflow: hidden;
        }
        .replay-card .card-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        .replay-card:hover .card-thumb img {
            transform: scale(1.04);
        }
        .replay-card .card-thumb .duration-badge {
            position: absolute;
            bottom: 10px;
            right: 10px;
            background: rgba(0, 0, 0, 0.72);
            color: #fff;
            font-size: 12px;
            font-weight: 600;
            padding: 3px 10px;
            border-radius: 12px;
            letter-spacing: 0.3px;
        }
        .replay-card .card-thumb .sport-tag {
            position: absolute;
            top: 10px;
            left: 10px;
            background: var(--brand-blue);
            color: #fff;
            font-size: 12px;
            font-weight: 600;
            padding: 3px 10px;
            border-radius: 12px;
        }
        .replay-card .card-body-custom {
            flex: 1;
            padding: 18px 20px;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
            min-width: 0;
        }
        .replay-card .card-title {
            font-size: 1.08rem;
            font-weight: 700;
            color: var(--ink-strong);
            margin-bottom: 8px;
            line-height: 1.45;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .replay-card .card-desc {
            font-size: 14px;
            color: var(--ink-muted);
            line-height: 1.65;
            margin-bottom: 12px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .replay-card .card-meta {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 14px;
            font-size: 13px;
            color: var(--ink-muted);
            border-top: 1px solid var(--border-light);
            padding-top: 12px;
        }
        .replay-card .card-meta i {
            margin-right: 4px;
            color: var(--brand-blue-light);
        }
        .replay-card .card-meta .badge-watch {
            background: var(--accent-orange);
            color: #fff;
            font-size: 12px;
            font-weight: 600;
            padding: 2px 10px;
            border-radius: 12px;
            margin-left: auto;
        }
        @media (max-width: 768px) {
            .replay-card {
                flex-direction: column;
            }
            .replay-card .card-thumb {
                flex: 0 0 auto;
                aspect-ratio: 16 / 9;
                min-height: auto;
            }
            .replay-card .card-body-custom {
                padding: 14px 16px;
            }
            .replay-card .card-title {
                font-size: 0.98rem;
            }
            .replay-card .card-meta {
                gap: 8px;
                flex-wrap: wrap;
            }
            .replay-card .card-meta .badge-watch {
                margin-left: 0;
            }
        }

        /* Hot replay section */
        .hot-replay-section {
            background: #ffffff;
            padding: 52px 0;
            border-bottom: 1px solid var(--border-light);
        }
        .hot-replay-section .section-head h2 {
            font-size: 1.55rem;
            font-weight: 700;
            color: var(--ink-strong);
            margin-bottom: 6px;
        }
        .hot-replay-section .section-head p {
            font-size: 14px;
            color: var(--ink-muted);
            margin-bottom: 0;
        }
        .hot-card {
            background: #fff;
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            transition: all var(--transition-base);
            border: 1px solid var(--border-light);
            height: 100%;
        }
        .hot-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
            border-color: rgba(58, 123, 213, 0.2);
        }
        .hot-card .hot-thumb {
            aspect-ratio: 16 / 9;
            overflow: hidden;
            position: relative;
        }
        .hot-card .hot-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        .hot-card:hover .hot-thumb img {
            transform: scale(1.05);
        }
        .hot-card .hot-rank {
            position: absolute;
            top: 12px;
            left: 12px;
            background: var(--accent-orange);
            color: #fff;
            font-size: 14px;
            font-weight: 800;
            width: 30px;
            height: 30px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 4px 10px rgba(245, 158, 11, 0.4);
        }
        .hot-card .hot-body {
            padding: 16px 18px;
        }
        .hot-card .hot-title {
            font-size: 0.98rem;
            font-weight: 700;
            color: var(--ink-strong);
            margin-bottom: 6px;
            line-height: 1.45;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .hot-card .hot-meta {
            font-size: 12.5px;
            color: var(--ink-muted);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .hot-card .hot-meta i {
            color: var(--accent-orange);
            font-size: 13px;
        }

        /* Data snapshot */
        .data-snapshot-section {
            background: linear-gradient(135deg, #1E2A3A 0%, #243447 100%);
            padding: 52px 0;
            position: relative;
            overflow: hidden;
        }
        .data-snapshot-section::before {
            content: "";
            position: absolute;
            top: -80px;
            left: -60px;
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, rgba(58, 123, 213, 0.18) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .data-snapshot-section .section-head {
            text-align: center;
            margin-bottom: 36px;
            position: relative;
            z-index: 2;
        }
        .data-snapshot-section .section-head h2 {
            font-size: 1.6rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 8px;
        }
        .data-snapshot-section .section-head p {
            color: rgba(255, 255, 255, 0.7);
            font-size: 14px;
            margin-bottom: 0;
        }
        .snapshot-card {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: var(--radius-card);
            padding: 28px 22px;
            text-align: center;
            transition: all var(--transition-base);
            height: 100%;
            position: relative;
            z-index: 2;
            backdrop-filter: blur(6px);
        }
        .snapshot-card:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: rgba(255, 255, 255, 0.22);
            transform: translateY(-3px);
        }
        .snapshot-card .snapshot-icon {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            background: rgba(58, 123, 213, 0.3);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            color: var(--brand-blue-light);
            margin-bottom: 14px;
        }
        .snapshot-card .snapshot-number {
            font-size: 2.2rem;
            font-weight: 800;
            color: #fff;
            line-height: 1.2;
            margin-bottom: 6px;
        }
        .snapshot-card .snapshot-label {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.7);
            font-weight: 500;
        }

        /* Related topics */
        .related-topics-section {
            background: var(--brand-blue-pale);
            padding: 52px 0;
        }
        .related-topics-section .section-head h2 {
            font-size: 1.55rem;
            font-weight: 700;
            color: var(--ink-strong);
            margin-bottom: 6px;
        }
        .related-topics-section .section-head p {
            font-size: 14px;
            color: var(--ink-muted);
            margin-bottom: 0;
        }
        .topic-card {
            background: #fff;
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-light);
            padding: 24px 20px;
            transition: all var(--transition-base);
            height: 100%;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .topic-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
            border-color: rgba(58, 123, 213, 0.2);
        }
        .topic-card .topic-icon {
            width: 42px;
            height: 42px;
            border-radius: 10px;
            background: var(--brand-blue-soft);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 19px;
            color: var(--brand-blue);
        }
        .topic-card .topic-title {
            font-size: 1.02rem;
            font-weight: 700;
            color: var(--ink-strong);
            margin-bottom: 0;
        }
        .topic-card .topic-desc {
            font-size: 13.5px;
            color: var(--ink-muted);
            line-height: 1.65;
            margin-bottom: 0;
        }
        .topic-card .topic-link {
            font-size: 13.5px;
            font-weight: 600;
            color: var(--brand-blue);
            display: inline-flex;
            align-items: center;
            gap: 4px;
            margin-top: auto;
        }
        .topic-card .topic-link:hover {
            color: var(--brand-blue-dark);
        }

        /* FAQ section */
        .faq-section {
            background: #ffffff;
            padding: 52px 0;
            border-bottom: 1px solid var(--border-light);
        }
        .faq-section .section-head {
            text-align: center;
            margin-bottom: 32px;
        }
        .faq-section .section-head h2 {
            font-size: 1.55rem;
            font-weight: 700;
            color: var(--ink-strong);
            margin-bottom: 8px;
        }
        .faq-section .section-head p {
            font-size: 14px;
            color: var(--ink-muted);
            margin-bottom: 0;
        }
        .accordion-custom .accordion-item {
            border: 1px solid var(--border-light);
            border-radius: 10px !important;
            margin-bottom: 12px;
            overflow: hidden;
            box-shadow: var(--shadow-card);
            background: #fff;
        }
        .accordion-custom .accordion-button {
            font-size: 15px;
            font-weight: 600;
            color: var(--ink-strong);
            padding: 16px 20px;
            background: #fff;
            border: none;
            box-shadow: none;
            transition: all var(--transition-base);
        }
        .accordion-custom .accordion-button:not(.collapsed) {
            color: var(--brand-blue);
            background: var(--brand-blue-soft);
            box-shadow: none;
        }
        .accordion-custom .accordion-button:focus {
            box-shadow: 0 0 0 3px rgba(58, 123, 213, 0.12);
            border: none;
        }
        .accordion-custom .accordion-button::after {
            font-family: "Font Awesome 6 Free";
            font-weight: 900;
            content: "\f078";
            background-image: none;
            font-size: 13px;
            color: var(--ink-muted);
            transition: transform var(--transition-base);
        }
        .accordion-custom .accordion-button:not(.collapsed)::after {
            transform: rotate(180deg);
            color: var(--brand-blue);
        }
        .accordion-custom .accordion-body {
            font-size: 14.5px;
            color: var(--ink-body);
            line-height: 1.75;
            padding: 14px 20px 18px;
            background: #fff;
        }

        /* CTA section */
        .cta-section {
            background: linear-gradient(135deg, #3A7BD5 0%, #5B9BD5 100%);
            padding: 56px 0;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: "";
            position: absolute;
            top: -100px;
            right: -60px;
            width: 350px;
            height: 350px;
            background: radial-gradient(circle, rgba(255, 255, 255, 0.12) 0%, transparent 70%);
            border-radius: 50%;
        }
        .cta-section .cta-wrap {
            position: relative;
            z-index: 2;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 20px;
        }
        .cta-section .cta-text h2 {
            font-size: 1.7rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 8px;
        }
        .cta-section .cta-text p {
            font-size: 15px;
            color: rgba(255, 255, 255, 0.85);
            margin-bottom: 0;
            max-width: 500px;
            line-height: 1.7;
        }
        .cta-section .cta-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
        }
        .btn-white {
            background: #fff;
            color: var(--brand-blue);
            border: none;
            padding: 11px 24px;
            border-radius: var(--radius-btn);
            font-weight: 700;
            font-size: 15px;
            transition: all var(--transition-base);
            box-shadow: 0 4px 14px rgba(0, 0, 0, 0.12);
        }
        .btn-white:hover {
            background: var(--brand-blue-pale);
            color: var(--brand-blue-dark);
            box-shadow: 0 8px 22px rgba(0, 0, 0, 0.18);
            transform: translateY(-2px);
        }
        .btn-outline-white {
            background: transparent;
            color: #fff;
            border: 2px solid rgba(255, 255, 255, 0.7);
            padding: 10px 22px;
            border-radius: var(--radius-btn);
            font-weight: 700;
            font-size: 15px;
            transition: all var(--transition-base);
        }
        .btn-outline-white:hover {
            background: rgba(255, 255, 255, 0.15);
            color: #fff;
            border-color: #fff;
            transform: translateY(-2px);
        }
        @media (max-width: 768px) {
            .cta-section .cta-wrap {
                flex-direction: column;
                text-align: center;
            }
            .cta-section .cta-text h2 {
                font-size: 1.35rem;
            }
            .cta-section .cta-actions {
                justify-content: center;
            }
        }

        /* Footer */
        .site-footer {
            background: #1E2A3A;
            color: rgba(255, 255, 255, 0.75);
            padding: 56px 0 0;
        }
        .site-footer .footer-logo {
            font-size: 1.4rem;
            font-weight: 700;
            color: #fff;
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 14px;
        }
        .site-footer .footer-logo i {
            color: var(--brand-blue-light);
            font-size: 1.6rem;
        }
        .site-footer h5 {
            color: #fff;
            font-size: 15px;
            font-weight: 700;
            margin-bottom: 18px;
        }
        .site-footer ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .site-footer ul li {
            margin-bottom: 10px;
        }
        .site-footer ul li a {
            color: rgba(255, 255, 255, 0.65);
            font-size: 14px;
            transition: all var(--transition-base);
        }
        .site-footer ul li a:hover {
            color: #fff;
            padding-left: 4px;
        }
        .site-footer .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            padding: 18px 0;
            margin-top: 40px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 8px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.55);
        }
        @media (max-width: 768px) {
            .site-footer .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 6px;
            }
        }

        /* Buttons */
        .btn-brand {
            background: var(--brand-blue);
            color: #fff;
            border: none;
            padding: 10px 22px;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 15px;
            transition: all var(--transition-base);
            box-shadow: 0 4px 12px rgba(58, 123, 213, 0.25);
        }
        .btn-brand:hover {
            background: var(--brand-blue-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(58, 123, 213, 0.35);
        }
        .btn-brand:focus-visible {
            outline: 2px solid var(--brand-blue);
            outline-offset: 2px;
        }
        .btn-outline-brand {
            background: transparent;
            color: var(--brand-blue);
            border: 1.5px solid var(--brand-blue);
            padding: 9px 20px;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 15px;
            transition: all var(--transition-base);
        }
        .btn-outline-brand:hover {
            background: var(--brand-blue-soft);
            color: var(--brand-blue-dark);
            border-color: var(--brand-blue-dark);
            transform: translateY(-2px);
        }

/* roulang page: category1 */
:root {
            --brand-blue: #3A7BD5;
            --brand-blue-dark: #2E68B5;
            --brand-blue-light: #5B9BD5;
            --brand-blue-soft: #EEF3F8;
            --brand-blue-pale: #F5F7FA;
            --ink-strong: #1F2937;
            --ink-body: #4B5563;
            --ink-muted: #6B7280;
            --accent-orange: #F59E0B;
            --accent-green: #10B981;
            --border-light: #E5E9F0;
            --shadow-card: 0 2px 8px rgba(15, 35, 70, 0.06);
            --shadow-card-hover: 0 12px 28px rgba(15, 35, 70, 0.12);
            --radius-card: 14px;
            --radius-btn: 9px;
            --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
            --transition-base: 0.2s ease;
        }

        * {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-sans);
            color: var(--ink-body);
            background-color: #ffffff;
            margin: 0;
            line-height: 1.7;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        a {
            color: var(--brand-blue);
            text-decoration: none;
            transition: color var(--transition-base);
        }
        a:hover {
            color: var(--brand-blue-dark);
        }
        a:focus-visible {
            outline: 2px solid var(--brand-blue);
            outline-offset: 2px;
        }

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

        .container {
            max-width: 1200px;
        }

        /* ===== 顶部信息条 ===== */
        .top-bar {
            background: var(--brand-blue-dark);
            color: rgba(255, 255, 255, 0.85);
            font-size: 12.5px;
            height: 34px;
            line-height: 1;
            position: relative;
            z-index: 1040;
        }
        .top-bar .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }
        .top-bar .domain-info {
            display: flex;
            align-items: center;
            gap: 8px;
            white-space: nowrap;
        }
        .top-bar .domain-info i {
            font-size: 11px;
            opacity: 0.7;
        }
        .top-bar .quick-actions {
            display: flex;
            align-items: center;
            gap: 12px;
            white-space: nowrap;
        }
        .top-bar .quick-actions a {
            color: rgba(255, 255, 255, 0.9);
            font-weight: 500;
            transition: color var(--transition-base);
            font-size: 12.5px;
        }
        .top-bar .quick-actions a:hover {
            color: #ffffff;
        }
        .top-bar .quick-actions .divider {
            width: 1px;
            height: 14px;
            background: rgba(255, 255, 255, 0.25);
        }

        /* ===== 主导航 ===== */
        .main-header {
            background: #ffffff;
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.04);
            position: sticky;
            top: 0;
            z-index: 1030;
            padding: 0;
            border-bottom: 1px solid var(--border-light);
        }
        .navbar-brand-custom {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.45rem;
            font-weight: 700;
            color: var(--ink-strong);
            letter-spacing: 0.5px;
            white-space: nowrap;
        }
        .navbar-brand-custom .brand-icon {
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, var(--brand-blue), var(--brand-blue-light));
            border-radius: 10px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 18px;
            box-shadow: 0 4px 10px rgba(58, 123, 213, 0.3);
            flex-shrink: 0;
        }
        .navbar-brand-custom:hover {
            color: var(--ink-strong);
        }
        .main-nav {
            padding: 10px 0;
        }
        .main-nav .nav-link {
            font-size: 15px;
            color: var(--ink-body);
            font-weight: 600;
            padding: 8px 13px !important;
            border-radius: 8px;
            transition: all var(--transition-base);
            position: relative;
            white-space: nowrap;
        }
        .main-nav .nav-link:hover,
        .main-nav .nav-link.active {
            color: var(--brand-blue);
            background: var(--brand-blue-soft);
        }
        .main-nav .nav-link::after {
            content: "";
            display: block;
            width: 0;
            height: 2px;
            background: var(--brand-blue);
            border-radius: 2px;
            margin-top: 4px;
            transition: width var(--transition-base);
        }
        .main-nav .nav-link.active::after,
        .main-nav .nav-link:hover::after {
            width: 100%;
        }
        .header-search {
            position: relative;
            margin-left: 16px;
            flex-shrink: 0;
        }
        .header-search input {
            border-radius: 30px;
            border: 1px solid var(--border-light);
            padding: 8px 36px 8px 16px;
            font-size: 13.5px;
            width: 185px;
            transition: all var(--transition-base);
            background: var(--brand-blue-pale);
        }
        .header-search input:focus {
            outline: none;
            border-color: var(--brand-blue);
            box-shadow: 0 0 0 3px rgba(58, 123, 213, 0.12);
            background: #fff;
            width: 215px;
        }
        .header-search i {
            position: absolute;
            right: 14px;
            top: 50%;
            transform: translateY(-50%);
            color: var(--ink-muted);
            font-size: 13px;
            pointer-events: none;
        }
        .navbar-toggler {
            border: none;
            padding: 8px 10px;
            font-size: 20px;
            color: var(--ink-strong);
        }
        .navbar-toggler:focus {
            box-shadow: none;
        }

        /* ===== 面包屑 ===== */
        .breadcrumb-bar {
            background: var(--brand-blue-pale);
            padding: 10px 0;
            border-bottom: 1px solid var(--border-light);
            font-size: 13.5px;
        }
        .breadcrumb-bar .breadcrumb {
            margin: 0;
            padding: 0;
            background: transparent;
            display: flex;
            align-items: center;
            gap: 6px;
            list-style: none;
        }
        .breadcrumb-item {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .breadcrumb-item + .breadcrumb-item::before {
            content: "/";
            color: var(--ink-muted);
            margin-right: 6px;
        }
        .breadcrumb-item a {
            color: var(--ink-muted);
            font-weight: 500;
        }
        .breadcrumb-item a:hover {
            color: var(--brand-blue);
        }
        .breadcrumb-item.active {
            color: var(--brand-blue);
            font-weight: 600;
        }

        /* ===== 分类头部 Hero-mini ===== */
        .hero-mini {
            background: linear-gradient(135deg, #F0F6FF 0%, #E6EFFB 100%);
            padding: 42px 0 48px;
            position: relative;
            overflow: hidden;
        }
        .hero-mini::before {
            content: "";
            position: absolute;
            top: -120px;
            right: -100px;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(58, 123, 213, 0.08) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .hero-mini::after {
            content: "";
            position: absolute;
            bottom: -160px;
            left: -120px;
            width: 350px;
            height: 350px;
            background: radial-gradient(circle, rgba(91, 155, 213, 0.06) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .hero-mini .row {
            position: relative;
            z-index: 2;
        }
        .hero-title {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--ink-strong);
            line-height: 1.25;
            margin-bottom: 14px;
            letter-spacing: 0.5px;
        }
        .hero-title .highlight {
            color: var(--brand-blue);
        }
        .hero-subtitle {
            font-size: 1.02rem;
            color: var(--ink-body);
            max-width: 600px;
            line-height: 1.75;
            margin-bottom: 22px;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            margin-bottom: 24px;
        }
        .hero-badge-row {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-bottom: 18px;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: #fff;
            border: 1px solid var(--border-light);
            border-radius: 30px;
            padding: 6px 14px;
            font-size: 13px;
            font-weight: 500;
            color: var(--ink-body);
            box-shadow: var(--shadow-card);
        }
        .hero-badge i {
            color: var(--brand-blue);
            font-size: 13px;
        }

        /* 倒计时 */
        .countdown-box {
            background: #ffffff;
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            padding: 18px 22px;
            display: flex;
            align-items: center;
            gap: 20px;
            flex-wrap: wrap;
            max-width: 500px;
            border: 1px solid var(--border-light);
        }
        .countdown-label {
            font-size: 14px;
            color: var(--ink-muted);
            font-weight: 500;
            display: flex;
            align-items: center;
            gap: 8px;
            white-space: nowrap;
        }
        .countdown-label i {
            color: var(--accent-orange);
        }
        .countdown-timer {
            display: flex;
            gap: 10px;
            align-items: center;
        }
        .countdown-unit {
            background: var(--brand-blue-soft);
            border-radius: 8px;
            padding: 8px 12px;
            text-align: center;
            min-width: 52px;
        }
        .countdown-unit .num {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--ink-strong);
            line-height: 1.2;
        }
        .countdown-unit .label {
            font-size: 11px;
            color: var(--ink-muted);
            font-weight: 500;
        }
        .countdown-colon {
            font-size: 1.4rem;
            font-weight: 700;
            color: var(--ink-muted);
            line-height: 1;
        }

        .btn-brand {
            background: var(--brand-blue);
            color: #fff;
            border: none;
            padding: 10px 22px;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 15px;
            transition: all var(--transition-base);
            display: inline-flex;
            align-items: center;
            gap: 8px;
            white-space: nowrap;
        }
        .btn-brand:hover,
        .btn-brand:focus {
            background: var(--brand-blue-dark);
            color: #fff;
            box-shadow: 0 6px 18px rgba(46, 104, 181, 0.3);
            transform: translateY(-1px);
        }
        .btn-brand:active {
            transform: translateY(0);
            box-shadow: none;
        }
        .btn-outline-brand {
            background: #fff;
            color: var(--brand-blue);
            border: 1px solid var(--brand-blue);
            padding: 9px 20px;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 15px;
            transition: all var(--transition-base);
            display: inline-flex;
            align-items: center;
            gap: 8px;
            white-space: nowrap;
        }
        .btn-outline-brand:hover,
        .btn-outline-brand:focus {
            background: var(--brand-blue-soft);
            color: var(--brand-blue-dark);
            border-color: var(--brand-blue-dark);
            box-shadow: 0 4px 12px rgba(58, 123, 213, 0.15);
            transform: translateY(-1px);
        }

        /* ===== 通用 section ===== */
        .section-block {
            padding: 48px 0;
        }
        .section-block.bg-soft {
            background: var(--brand-blue-pale);
        }
        .section-block.bg-white {
            background: #fff;
        }
        .section-title {
            font-size: 1.6rem;
            font-weight: 800;
            color: var(--ink-strong);
            margin-bottom: 10px;
            letter-spacing: 0.3px;
        }
        .section-desc {
            font-size: 0.98rem;
            color: var(--ink-muted);
            max-width: 680px;
            line-height: 1.7;
            margin-bottom: 28px;
        }
        .section-meta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--brand-blue);
            font-weight: 600;
            margin-bottom: 8px;
            text-transform: uppercase;
            letter-spacing: 1px;
        }
        .section-meta i {
            font-size: 12px;
        }

        /* ===== 筛选工具条 ===== */
        .filter-bar {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            align-items: center;
            margin-bottom: 28px;
            padding-bottom: 4px;
        }
        .filter-label {
            font-size: 14px;
            color: var(--ink-muted);
            font-weight: 600;
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .filter-chip {
            border: 1px solid var(--border-light);
            background: #fff;
            color: var(--ink-body);
            border-radius: 30px;
            padding: 7px 18px;
            font-size: 13.5px;
            font-weight: 500;
            cursor: pointer;
            transition: all var(--transition-base);
            white-space: nowrap;
        }
        .filter-chip:hover {
            border-color: var(--brand-blue);
            color: var(--brand-blue);
            background: var(--brand-blue-soft);
        }
        .filter-chip.active {
            background: var(--brand-blue);
            border-color: var(--brand-blue);
            color: #fff;
            box-shadow: 0 4px 12px rgba(58, 123, 213, 0.25);
        }

        /* ===== 直播卡片列表 ===== */
        .live-card-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .live-card {
            display: flex;
            background: #ffffff;
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: all var(--transition-base);
            padding: 16px;
            gap: 18px;
            align-items: center;
            flex-wrap: wrap;
        }
        .live-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
            border-color: rgba(58, 123, 213, 0.25);
        }
        .live-card-cover {
            width: 180px;
            height: 105px;
            border-radius: 10px;
            overflow: hidden;
            flex-shrink: 0;
            position: relative;
            background: var(--brand-blue-soft);
        }
        .live-card-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-base);
        }
        .live-card:hover .live-card-cover img {
            transform: scale(1.04);
        }
        .live-card-cover .live-indicator {
            position: absolute;
            top: 8px;
            left: 8px;
            display: inline-flex;
            align-items: center;
            gap: 4px;
            background: rgba(0, 0, 0, 0.65);
            color: #fff;
            font-size: 10.5px;
            font-weight: 600;
            padding: 3px 8px;
            border-radius: 20px;
        }
        .live-indicator .dot {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--accent-green);
            animation: pulse-dot 1.4s infinite;
        }
        @keyframes pulse-dot {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.3; }
        }
        .live-card-body {
            flex: 1;
            min-width: 220px;
        }
        .live-card-title {
            font-size: 16.5px;
            font-weight: 700;
            color: var(--ink-strong);
            margin-bottom: 4px;
            line-height: 1.4;
        }
        .live-card-desc {
            font-size: 13.5px;
            color: var(--ink-muted);
            margin-bottom: 8px;
            line-height: 1.6;
        }
        .live-card-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
            margin-top: 6px;
        }
        .live-tag {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            background: var(--brand-blue-soft);
            color: var(--brand-blue-dark);
            font-size: 12px;
            font-weight: 500;
            padding: 3px 10px;
            border-radius: 20px;
        }
        .live-tag.orange {
            background: #FFF7ED;
            color: #B45309;
        }
        .live-tag.green {
            background: #ECFDF5;
            color: #047857;
        }
        .live-tag.gray {
            background: #F3F4F6;
            color: #374151;
        }
        .live-card-side {
            display: flex;
            flex-direction: column;
            align-items: flex-end;
            gap: 6px;
            flex-shrink: 0;
            min-width: 90px;
        }
        .live-score {
            font-size: 1.4rem;
            font-weight: 800;
            color: var(--ink-strong);
            letter-spacing: 2px;
        }
        .live-time {
            font-size: 12.5px;
            color: var(--ink-muted);
            display: flex;
            align-items: center;
            gap: 5px;
        }
        .live-viewers {
            font-size: 12px;
            color: var(--ink-muted);
            display: flex;
            align-items: center;
            gap: 5px;
        }
        .live-viewers i {
            color: var(--brand-blue-light);
        }

        /* ===== 数据快照 ===== */
        .snapshot-board {
            background: #ffffff;
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-light);
            padding: 28px 32px;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
            gap: 20px;
        }
        .snapshot-item {
            text-align: center;
            padding: 10px 8px;
        }
        .snapshot-item .number {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--brand-blue);
            line-height: 1.2;
            letter-spacing: 1px;
        }
        .snapshot-item .label {
            font-size: 13.5px;
            color: var(--ink-muted);
            font-weight: 500;
            margin-top: 4px;
        }
        .snapshot-item .trend {
            font-size: 12px;
            display: inline-flex;
            align-items: center;
            gap: 3px;
            margin-top: 4px;
            font-weight: 600;
        }
        .snapshot-item .trend.up {
            color: var(--accent-green);
        }
        .snapshot-item .trend.flat {
            color: var(--accent-orange);
        }

        /* ===== 热门推荐横卡 ===== */
        .hot-card-row {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(270px, 1fr));
            gap: 18px;
        }
        .hot-card {
            background: #ffffff;
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: all var(--transition-base);
            cursor: pointer;
        }
        .hot-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
        }
        .hot-card-cover {
            height: 150px;
            overflow: hidden;
            position: relative;
            background: var(--brand-blue-soft);
        }
        .hot-card-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-base);
        }
        .hot-card:hover .hot-card-cover img {
            transform: scale(1.05);
        }
        .hot-card-cover .badge-overlay {
            position: absolute;
            top: 10px;
            right: 10px;
            background: rgba(0, 0, 0, 0.6);
            color: #fff;
            font-size: 11px;
            padding: 4px 10px;
            border-radius: 20px;
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }
        .hot-card-body {
            padding: 16px 18px;
        }
        .hot-card-title {
            font-size: 15.5px;
            font-weight: 700;
            color: var(--ink-strong);
            margin-bottom: 6px;
            line-height: 1.4;
        }
        .hot-card-desc {
            font-size: 13px;
            color: var(--ink-muted);
            line-height: 1.6;
        }

        /* ===== 观赛指南 ===== */
        .guide-list {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }
        .guide-item {
            display: flex;
            gap: 14px;
            align-items: flex-start;
            background: #fff;
            border-radius: 10px;
            padding: 14px 18px;
            border: 1px solid var(--border-light);
            transition: border-color var(--transition-base);
        }
        .guide-item:hover {
            border-color: rgba(58, 123, 213, 0.35);
        }
        .guide-icon {
            width: 36px;
            height: 36px;
            border-radius: 8px;
            background: var(--brand-blue-soft);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: var(--brand-blue);
            font-size: 15px;
            flex-shrink: 0;
        }
        .guide-text h4 {
            font-size: 15px;
            font-weight: 700;
            color: var(--ink-strong);
            margin-bottom: 3px;
        }
        .guide-text p {
            font-size: 13.5px;
            color: var(--ink-muted);
            margin: 0;
            line-height: 1.6;
        }

        /* ===== FAQ ===== */
        .accordion-custom .accordion-item {
            border: 1px solid var(--border-light);
            border-radius: 10px;
            margin-bottom: 10px;
            overflow: hidden;
            background: #fff;
        }
        .accordion-custom .accordion-button {
            font-weight: 600;
            font-size: 15px;
            color: var(--ink-strong);
            padding: 15px 20px;
            background: #fff;
            box-shadow: none;
            border-radius: 10px !important;
        }
        .accordion-custom .accordion-button:not(.collapsed) {
            background: var(--brand-blue-soft);
            color: var(--brand-blue-dark);
        }
        .accordion-custom .accordion-button:focus {
            box-shadow: 0 0 0 3px rgba(58, 123, 213, 0.15);
        }
        .accordion-custom .accordion-button::after {
            background-size: 14px;
        }
        .accordion-custom .accordion-body {
            font-size: 14.5px;
            color: var(--ink-body);
            padding: 15px 20px;
            line-height: 1.75;
            background: #fff;
        }

        /* ===== CTA 行动区 ===== */
        .cta-banner {
            background: linear-gradient(135deg, var(--brand-blue) 0%, var(--brand-blue-dark) 100%);
            border-radius: var(--radius-card);
            padding: 38px 40px;
            color: #fff;
            position: relative;
            overflow: hidden;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 22px;
        }
        .cta-banner::before {
            content: "";
            position: absolute;
            top: -80px;
            right: -60px;
            width: 280px;
            height: 280px;
            background: radial-gradient(circle, rgba(255, 255, 255, 0.12) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .cta-banner::after {
            content: "";
            position: absolute;
            bottom: -100px;
            left: -40px;
            width: 240px;
            height: 240px;
            background: radial-gradient(circle, rgba(255, 255, 255, 0.08) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .cta-banner-content {
            position: relative;
            z-index: 2;
            max-width: 560px;
        }
        .cta-banner-title {
            font-size: 1.45rem;
            font-weight: 800;
            margin-bottom: 8px;
            line-height: 1.35;
        }
        .cta-banner-desc {
            font-size: 14.5px;
            line-height: 1.7;
            opacity: 0.9;
            margin: 0;
        }
        .cta-banner-actions {
            position: relative;
            z-index: 2;
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
            flex-shrink: 0;
        }
        .btn-light-cta {
            background: #fff;
            color: var(--brand-blue-dark);
            border: none;
            padding: 11px 24px;
            border-radius: var(--radius-btn);
            font-weight: 700;
            font-size: 15px;
            transition: all var(--transition-base);
            display: inline-flex;
            align-items: center;
            gap: 8px;
            white-space: nowrap;
        }
        .btn-light-cta:hover {
            background: var(--brand-blue-pale);
            color: var(--brand-blue-dark);
            box-shadow: 0 6px 18px rgba(0, 0, 0, 0.2);
            transform: translateY(-1px);
        }
        .btn-ghost-cta {
            background: transparent;
            color: #fff;
            border: 1px solid rgba(255, 255, 255, 0.5);
            padding: 10px 22px;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 15px;
            transition: all var(--transition-base);
            display: inline-flex;
            align-items: center;
            gap: 8px;
            white-space: nowrap;
        }
        .btn-ghost-cta:hover {
            background: rgba(255, 255, 255, 0.12);
            color: #fff;
            border-color: rgba(255, 255, 255, 0.8);
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: #1E2A3A;
            color: rgba(255, 255, 255, 0.7);
            padding: 44px 0 20px;
            font-size: 14px;
        }
        .site-footer .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.3rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
        }
        .site-footer .footer-logo i {
            color: var(--brand-blue-light);
            font-size: 24px;
        }
        .site-footer h5 {
            color: #fff;
            font-size: 15px;
            font-weight: 700;
            margin-bottom: 14px;
            letter-spacing: 0.5px;
        }
        .site-footer ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .site-footer ul li {
            margin-bottom: 8px;
        }
        .site-footer ul li a {
            color: rgba(255, 255, 255, 0.65);
            transition: color var(--transition-base);
            font-size: 13.5px;
        }
        .site-footer ul li a:hover {
            color: #fff;
        }
        .site-footer .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 18px;
            margin-top: 28px;
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 10px;
            font-size: 12.5px;
            color: rgba(255, 255, 255, 0.5);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 992px) {
            .header-search {
                display: none;
            }
            .hero-title {
                font-size: 1.85rem;
            }
            .live-card {
                flex-wrap: wrap;
            }
            .live-card-cover {
                width: 140px;
                height: 85px;
            }
            .live-card-side {
                flex-direction: row;
                align-items: center;
                gap: 12px;
                min-width: auto;
                width: 100%;
                justify-content: flex-start;
            }
            .cta-banner {
                padding: 28px 24px;
            }
        }
        @media (max-width: 768px) {
            .hero-title {
                font-size: 1.6rem;
            }
            .hero-subtitle {
                font-size: 0.92rem;
            }
            .countdown-unit {
                min-width: 44px;
                padding: 6px 8px;
            }
            .countdown-unit .num {
                font-size: 1.2rem;
            }
            .section-block {
                padding: 34px 0;
            }
            .section-title {
                font-size: 1.35rem;
            }
            .live-card {
                padding: 12px;
                gap: 12px;
            }
            .live-card-cover {
                width: 100%;
                height: 130px;
                flex-shrink: 0;
            }
            .live-card-body {
                min-width: 100%;
            }
            .live-card-side {
                width: 100%;
                justify-content: flex-start;
            }
            .snapshot-board {
                padding: 18px 16px;
                gap: 12px;
                grid-template-columns: repeat(2, 1fr);
            }
            .snapshot-item .number {
                font-size: 1.6rem;
            }
            .hot-card-row {
                grid-template-columns: 1fr;
            }
            .cta-banner {
                padding: 22px 18px;
            }
            .cta-banner-title {
                font-size: 1.2rem;
            }
            .top-bar .domain-info {
                font-size: 11px;
            }
            .top-bar .quick-actions a {
                font-size: 11.5px;
            }
        }
        @media (max-width: 520px) {
            .hero-title {
                font-size: 1.4rem;
            }
            .hero-subtitle {
                font-size: 0.88rem;
            }
            .btn-brand,
            .btn-outline-brand {
                font-size: 13.5px;
                padding: 8px 16px;
            }
            .filter-chip {
                padding: 5px 13px;
                font-size: 12.5px;
            }
            .countdown-box {
                padding: 14px 16px;
                gap: 12px;
            }
            .countdown-unit .num {
                font-size: 1.1rem;
            }
            .snapshot-board {
                grid-template-columns: 1fr 1fr;
                padding: 14px 10px;
            }
            .snapshot-item .number {
                font-size: 1.4rem;
            }
            .live-score {
                font-size: 1.2rem;
            }
            .site-footer .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
        }

/* roulang page: category3 */
:root {
            --brand-blue: #3A7BD5;
            --brand-blue-dark: #2E68B5;
            --brand-blue-light: #5B9BD5;
            --brand-blue-soft: #EEF3F8;
            --brand-blue-pale: #F5F7FA;
            --ink-strong: #1F2937;
            --ink-body: #4B5563;
            --ink-muted: #6B7280;
            --accent-orange: #F59E0B;
            --accent-green: #10B981;
            --border-light: #E5E9F0;
            --shadow-card: 0 2px 8px rgba(15, 35, 70, 0.06);
            --shadow-card-hover: 0 12px 28px rgba(15, 35, 70, 0.12);
            --radius-card: 14px;
            --radius-btn: 9px;
            --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
            --transition-base: 0.2s ease;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-sans);
            color: var(--ink-body);
            background-color: #ffffff;
            margin: 0;
            line-height: 1.7;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        a {
            color: var(--brand-blue);
            text-decoration: none;
            transition: color var(--transition-base);
        }

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

        a:focus-visible {
            outline: 2px solid var(--brand-blue);
            outline-offset: 2px;
        }

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

        .container {
            max-width: 1200px;
        }

        /* Top Bar */
        .top-bar {
            background: #2E68B5;
            color: rgba(255, 255, 255, 0.85);
            font-size: 12.5px;
            height: 36px;
            display: flex;
            align-items: center;
        }

        .top-bar .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }

        .top-bar .domain-info {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .top-bar .domain-info i {
            font-size: 12px;
            opacity: 0.7;
        }

        .top-bar .quick-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .top-bar .quick-actions a {
            color: rgba(255, 255, 255, 0.9);
            font-weight: 500;
            transition: color var(--transition-base);
            font-size: 12.5px;
        }

        .top-bar .quick-actions a:hover {
            color: #ffffff;
        }

        .top-bar .quick-actions .divider {
            width: 1px;
            height: 14px;
            background: rgba(255, 255, 255, 0.25);
        }

        /* Main Header */
        .main-header {
            background: #ffffff;
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.04);
            position: sticky;
            top: 0;
            z-index: 1030;
            padding: 0;
            border-bottom: 1px solid var(--border-light);
        }

        .navbar-brand-custom {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.45rem;
            font-weight: 700;
            color: var(--ink-strong);
            letter-spacing: 0.5px;
        }

        .navbar-brand-custom .brand-icon {
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, var(--brand-blue), var(--brand-blue-light));
            border-radius: 10px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 18px;
            box-shadow: 0 4px 10px rgba(58, 123, 213, 0.3);
        }

        .navbar-brand-custom:hover {
            color: var(--ink-strong);
        }

        .main-nav {
            padding: 12px 0;
        }

        .main-nav .nav-link {
            font-size: 15px;
            color: var(--ink-body);
            font-weight: 600;
            padding: 8px 14px !important;
            border-radius: 8px;
            transition: all var(--transition-base);
            position: relative;
        }

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

        .main-nav .nav-link::after {
            content: "";
            display: block;
            width: 0;
            height: 2px;
            background: var(--brand-blue);
            border-radius: 2px;
            margin-top: 4px;
            transition: width var(--transition-base);
        }

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

        .header-search {
            position: relative;
            margin-left: 18px;
        }

        .header-search input {
            border-radius: 30px;
            border: 1px solid var(--border-light);
            padding: 8px 36px 8px 16px;
            font-size: 13.5px;
            width: 200px;
            transition: all var(--transition-base);
            background: var(--brand-blue-pale);
        }

        .header-search input:focus {
            outline: none;
            border-color: var(--brand-blue);
            box-shadow: 0 0 0 3px rgba(58, 123, 213, 0.12);
            background: #fff;
            width: 230px;
        }

        .header-search i {
            position: absolute;
            right: 14px;
            top: 50%;
            transform: translateY(-50%);
            color: var(--ink-muted);
            font-size: 13px;
            pointer-events: none;
        }

        .navbar-toggler {
            border: none;
            padding: 8px 10px;
            font-size: 20px;
            color: var(--ink-strong);
        }

        .navbar-toggler:focus {
            box-shadow: none;
        }

        /* Breadcrumb */
        .breadcrumb-bar {
            background: var(--brand-blue-pale);
            padding: 14px 0;
            border-bottom: 1px solid var(--border-light);
        }

        .breadcrumb-bar .breadcrumb {
            margin: 0;
            font-size: 14px;
            --bs-breadcrumb-divider-color: var(--ink-muted);
        }

        .breadcrumb-bar .breadcrumb a {
            color: var(--ink-muted);
            font-weight: 500;
        }

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

        .breadcrumb-bar .breadcrumb .active {
            color: var(--brand-blue);
            font-weight: 600;
        }

        /* Category Header - compact */
        .category-intro {
            background: linear-gradient(135deg, #F0F6FF 0%, #E8F0FA 100%);
            padding: 40px 0 36px;
            border-bottom: 1px solid var(--border-light);
            position: relative;
            overflow: hidden;
        }

        .category-intro::after {
            content: "";
            position: absolute;
            top: -60px;
            right: -40px;
            width: 260px;
            height: 260px;
            background: radial-gradient(circle, rgba(58, 123, 213, 0.06) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .category-intro .row {
            position: relative;
            z-index: 2;
        }

        .category-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(58, 123, 213, 0.1);
            color: var(--brand-blue);
            font-size: 13px;
            font-weight: 600;
            padding: 5px 14px;
            border-radius: 30px;
            letter-spacing: 0.3px;
            margin-bottom: 12px;
        }

        .category-h1 {
            font-size: 2.1rem;
            font-weight: 800;
            color: var(--ink-strong);
            line-height: 1.3;
            margin-bottom: 12px;
            letter-spacing: 0.3px;
        }

        .category-h1 .highlight {
            color: var(--brand-blue);
        }

        .category-desc {
            font-size: 1rem;
            color: var(--ink-body);
            max-width: 680px;
            line-height: 1.8;
            margin-bottom: 0;
        }

        /* Filter/Sort Toolbar */
        .filter-bar {
            background: #ffffff;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-card);
            padding: 14px 18px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 12px;
            box-shadow: var(--shadow-card);
            margin-top: -20px;
            position: relative;
            z-index: 5;
        }

        .filter-label {
            font-size: 14px;
            font-weight: 700;
            color: var(--ink-strong);
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .filter-label i {
            color: var(--brand-blue);
            font-size: 13px;
        }

        .filter-btn {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            border: 1px solid var(--border-light);
            background: #fff;
            color: var(--ink-body);
            font-size: 13.5px;
            font-weight: 500;
            padding: 7px 14px;
            border-radius: 30px;
            transition: all var(--transition-base);
            cursor: pointer;
            white-space: nowrap;
        }

        .filter-btn:hover {
            border-color: var(--brand-blue);
            color: var(--brand-blue);
            background: var(--brand-blue-soft);
        }

        .filter-btn.active {
            background: var(--brand-blue);
            border-color: var(--brand-blue);
            color: #fff;
            font-weight: 600;
        }

        .filter-btn:focus-visible {
            outline: 2px solid var(--brand-blue);
            outline-offset: 2px;
        }

        .sort-select {
            margin-left: auto;
            position: relative;
        }

        .sort-select select {
            border: 1px solid var(--border-light);
            border-radius: 30px;
            padding: 8px 36px 8px 16px;
            font-size: 13.5px;
            color: var(--ink-body);
            background: var(--brand-blue-pale);
            appearance: none;
            cursor: pointer;
            transition: all var(--transition-base);
            font-weight: 500;
        }

        .sort-select select:focus {
            outline: none;
            border-color: var(--brand-blue);
            box-shadow: 0 0 0 3px rgba(58, 123, 213, 0.12);
            background: #fff;
        }

        .sort-select::after {
            content: "\f078";
            font-family: "Font Awesome 6 Free";
            font-weight: 900;
            position: absolute;
            right: 14px;
            top: 50%;
            transform: translateY(-50%);
            font-size: 11px;
            color: var(--ink-muted);
            pointer-events: none;
        }

        /* Section base */
        .page-section {
            padding: 48px 0;
        }

        .page-section.alt-bg {
            background: var(--brand-blue-pale);
        }

        .section-heading {
            margin-bottom: 28px;
        }

        .section-eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            font-weight: 700;
            color: var(--brand-blue);
            text-transform: uppercase;
            letter-spacing: 0.8px;
            margin-bottom: 8px;
        }

        .section-title {
            font-size: 1.65rem;
            font-weight: 800;
            color: var(--ink-strong);
            margin-bottom: 12px;
            line-height: 1.35;
        }

        .section-desc {
            font-size: 15px;
            color: var(--ink-muted);
            max-width: 640px;
            line-height: 1.75;
            margin-bottom: 0;
        }

        /* Data List Cards */
        .data-list-card {
            background: #ffffff;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-card);
            padding: 18px 20px;
            display: flex;
            gap: 18px;
            align-items: flex-start;
            transition: all var(--transition-base);
            box-shadow: var(--shadow-card);
            margin-bottom: 16px;
            cursor: pointer;
        }

        .data-list-card:hover {
            box-shadow: var(--shadow-card-hover);
            border-color: rgba(58, 123, 213, 0.3);
            transform: translateY(-2px);
        }

        .data-list-card .rank-icon {
            width: 56px;
            height: 56px;
            border-radius: 12px;
            overflow: hidden;
            flex-shrink: 0;
            background: var(--brand-blue-soft);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            color: var(--brand-blue);
            font-weight: 700;
        }

        .data-list-card .rank-icon img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .data-list-body {
            flex: 1;
            min-width: 0;
        }

        .data-list-title {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--ink-strong);
            margin-bottom: 6px;
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
        }

        .data-list-title a {
            color: var(--ink-strong);
        }

        .data-list-title a:hover {
            color: var(--brand-blue);
        }

        .data-list-summary {
            font-size: 14px;
            color: var(--ink-muted);
            line-height: 1.7;
            margin-bottom: 10px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .data-list-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            font-size: 13px;
            color: var(--ink-muted);
            align-items: center;
        }

        .data-list-meta span {
            display: inline-flex;
            align-items: center;
            gap: 5px;
        }

        .data-list-meta i {
            font-size: 12px;
            color: var(--brand-blue-light);
        }

        .tag-badge {
            display: inline-flex;
            align-items: center;
            background: var(--brand-blue-soft);
            color: var(--brand-blue);
            font-size: 12px;
            font-weight: 600;
            padding: 3px 10px;
            border-radius: 30px;
            letter-spacing: 0.2px;
        }

        .tag-badge.live-tag {
            background: #FEF3E2;
            color: var(--accent-orange);
        }

        .tag-badge.green-tag {
            background: #E8F7F1;
            color: var(--accent-green);
        }

        /* Data Snapshot */
        .snapshot-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .snapshot-item {
            background: #ffffff;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-card);
            padding: 24px 20px;
            text-align: center;
            box-shadow: var(--shadow-card);
            transition: all var(--transition-base);
        }

        .snapshot-item:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }

        .snapshot-number {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--brand-blue);
            line-height: 1.2;
            margin-bottom: 6px;
            letter-spacing: -0.5px;
        }

        .snapshot-label {
            font-size: 14px;
            color: var(--ink-muted);
            font-weight: 500;
        }

        .snapshot-unit {
            font-size: 13px;
            color: var(--ink-muted);
            opacity: 0.8;
        }

        /* Ranking Table */
        .rank-table-wrap {
            background: #ffffff;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
        }

        .rank-table-wrap .rank-row {
            display: flex;
            align-items: center;
            padding: 14px 20px;
            border-bottom: 1px solid var(--border-light);
            transition: background var(--transition-base);
            gap: 14px;
        }

        .rank-table-wrap .rank-row:last-child {
            border-bottom: none;
        }

        .rank-table-wrap .rank-row:hover {
            background: var(--brand-blue-pale);
        }

        .rank-table-wrap .rank-row .rank-pos {
            width: 32px;
            height: 32px;
            border-radius: 8px;
            background: var(--brand-blue-soft);
            color: var(--brand-blue);
            font-weight: 700;
            font-size: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }

        .rank-table-wrap .rank-row .rank-pos.top1 {
            background: #FEF3E2;
            color: var(--accent-orange);
        }

        .rank-table-wrap .rank-row .rank-pos.top2 {
            background: #F0F2F5;
            color: var(--ink-body);
        }

        .rank-table-wrap .rank-row .rank-pos.top3 {
            background: #F5E9DC;
            color: #B87A3A;
        }

        .rank-table-wrap .rank-row .rank-name {
            font-weight: 600;
            color: var(--ink-strong);
            font-size: 15px;
            flex: 1;
            min-width: 0;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        .rank-table-wrap .rank-row .rank-stat {
            font-size: 14px;
            font-weight: 700;
            color: var(--brand-blue);
            white-space: nowrap;
        }

        .rank-table-wrap .rank-row .rank-trend {
            font-size: 13px;
            color: var(--ink-muted);
            display: flex;
            align-items: center;
            gap: 4px;
            white-space: nowrap;
        }

        .rank-table-wrap .rank-row .rank-trend.up {
            color: var(--accent-green);
        }

        .rank-table-wrap .rank-row .rank-trend.down {
            color: #EF4444;
        }

        /* Data Insight */
        .insight-block {
            background: #ffffff;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-card);
            padding: 28px 30px;
            box-shadow: var(--shadow-card);
            position: relative;
            overflow: hidden;
        }

        .insight-block::before {
            content: "\f080";
            font-family: "Font Awesome 6 Free";
            font-weight: 900;
            position: absolute;
            right: -20px;
            top: -20px;
            font-size: 140px;
            color: rgba(58, 123, 213, 0.04);
            pointer-events: none;
        }

        .insight-block h3 {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--ink-strong);
            margin-bottom: 14px;
            position: relative;
            z-index: 2;
        }

        .insight-block p {
            font-size: 15px;
            color: var(--ink-body);
            line-height: 1.85;
            margin-bottom: 12px;
            position: relative;
            z-index: 2;
        }

        .insight-block p:last-child {
            margin-bottom: 0;
        }

        /* FAQ */
        .accordion-faq .accordion-item {
            border: 1px solid var(--border-light);
            border-radius: 12px !important;
            margin-bottom: 12px;
            overflow: hidden;
            box-shadow: 0 1px 4px rgba(15, 35, 70, 0.04);
        }

        .accordion-faq .accordion-button {
            font-weight: 600;
            color: var(--ink-strong);
            background: #fff;
            padding: 16px 20px;
            font-size: 15px;
            border-radius: 12px !important;
            box-shadow: none;
        }

        .accordion-faq .accordion-button:not(.collapsed) {
            color: var(--brand-blue);
            background: var(--brand-blue-pale);
            box-shadow: none;
        }

        .accordion-faq .accordion-button:focus {
            box-shadow: 0 0 0 3px rgba(58, 123, 213, 0.12);
        }

        .accordion-faq .accordion-body {
            font-size: 14.5px;
            color: var(--ink-body);
            line-height: 1.8;
            padding: 16px 20px 20px;
            background: #fff;
        }

        .accordion-faq .accordion-button::after {
            background-size: 14px;
            transition: transform 0.25s ease;
        }

        /* CTA */
        .cta-section {
            background: linear-gradient(135deg, var(--brand-blue) 0%, #4A8DD8 60%, var(--brand-blue-light) 100%);
            color: #fff;
            position: relative;
            overflow: hidden;
        }

        .cta-section::after {
            content: "";
            position: absolute;
            top: -60px;
            right: -30px;
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .cta-section .row {
            position: relative;
            z-index: 2;
        }

        .cta-section h2 {
            font-size: 1.7rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 12px;
            line-height: 1.35;
        }

        .cta-section p {
            font-size: 15.5px;
            color: rgba(255, 255, 255, 0.85);
            line-height: 1.8;
            margin-bottom: 0;
            max-width: 600px;
        }

        .btn-cta {
            background: #ffffff;
            color: var(--brand-blue);
            border: none;
            padding: 12px 28px;
            border-radius: var(--radius-btn);
            font-weight: 700;
            font-size: 15px;
            transition: all var(--transition-base);
            display: inline-flex;
            align-items: center;
            gap: 8px;
            white-space: nowrap;
        }

        .btn-cta:hover {
            background: var(--brand-blue-soft);
            color: var(--brand-blue-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
        }

        .btn-cta-outline {
            background: transparent;
            color: #fff;
            border: 1.5px solid rgba(255, 255, 255, 0.6);
            padding: 11px 26px;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 15px;
            transition: all var(--transition-base);
            display: inline-flex;
            align-items: center;
            gap: 8px;
            white-space: nowrap;
        }

        .btn-cta-outline:hover {
            background: rgba(255, 255, 255, 0.12);
            border-color: #fff;
            color: #fff;
        }

        /* Buttons */
        .btn-brand {
            background: var(--brand-blue);
            color: #fff;
            border: none;
            padding: 10px 22px;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 14.5px;
            transition: all var(--transition-base);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .btn-brand:hover {
            background: var(--brand-blue-dark);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: 0 6px 16px rgba(58, 123, 213, 0.3);
        }

        .btn-brand-outline {
            background: transparent;
            color: var(--brand-blue);
            border: 1.5px solid var(--brand-blue);
            padding: 9px 20px;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 14.5px;
            transition: all var(--transition-base);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .btn-brand-outline:hover {
            background: var(--brand-blue-soft);
            color: var(--brand-blue-dark);
            border-color: var(--brand-blue-dark);
        }

        /* Footer */
        .site-footer {
            background: #1E2A3A;
            color: rgba(255, 255, 255, 0.8);
            padding: 48px 0 24px;
            font-size: 14px;
        }

        .site-footer .footer-logo {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 1.25rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 14px;
            letter-spacing: 0.5px;
        }

        .site-footer .footer-logo i {
            color: var(--brand-blue-light);
            font-size: 22px;
        }

        .site-footer h5 {
            font-size: 13px;
            font-weight: 700;
            color: #fff;
            text-transform: uppercase;
            letter-spacing: 1px;
            margin-bottom: 14px;
            opacity: 0.7;
        }

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

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

        .site-footer ul li a {
            color: rgba(255, 255, 255, 0.65);
            font-size: 14px;
            transition: color var(--transition-base);
        }

        .site-footer ul li a:hover {
            color: var(--brand-blue-light);
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 20px;
            margin-top: 32px;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 10px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.5);
        }

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

            .header-search {
                display: none;
            }

            .main-nav .nav-link {
                padding: 8px 10px !important;
                font-size: 14px;
            }

            .category-h1 {
                font-size: 1.8rem;
            }

            .section-title {
                font-size: 1.45rem;
            }
        }

        @media (max-width: 768px) {
            .category-intro {
                padding: 30px 0 28px;
            }

            .category-h1 {
                font-size: 1.55rem;
            }

            .filter-bar {
                flex-direction: column;
                align-items: flex-start;
                gap: 10px;
                margin-top: -14px;
                padding: 14px;
            }

            .sort-select {
                margin-left: 0;
                width: 100%;
            }

            .sort-select select {
                width: 100%;
            }

            .data-list-card {
                flex-direction: column;
                gap: 12px;
                padding: 16px;
            }

            .data-list-card .rank-icon {
                width: 48px;
                height: 48px;
                font-size: 17px;
            }

            .page-section {
                padding: 36px 0;
            }

            .section-title {
                font-size: 1.35rem;
            }

            .snapshot-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }

            .snapshot-item {
                padding: 18px 14px;
            }

            .snapshot-number {
                font-size: 1.7rem;
            }

            .cta-section h2 {
                font-size: 1.4rem;
            }

            .insight-block {
                padding: 20px;
            }

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

        @media (max-width: 520px) {
            .top-bar .quick-actions a {
                font-size: 11.5px;
            }

            .top-bar .domain-info {
                font-size: 11.5px;
            }

            .navbar-brand-custom {
                font-size: 1.2rem;
            }

            .navbar-brand-custom .brand-icon {
                width: 30px;
                height: 30px;
                font-size: 15px;
            }

            .category-h1 {
                font-size: 1.35rem;
            }

            .section-title {
                font-size: 1.25rem;
            }

            .snapshot-grid {
                grid-template-columns: 1fr;
            }

            .data-list-meta {
                flex-direction: column;
                gap: 6px;
                align-items: flex-start;
            }

            .rank-table-wrap .rank-row {
                flex-wrap: wrap;
                padding: 12px 14px;
                gap: 8px;
            }

            .rank-table-wrap .rank-row .rank-name {
                flex-basis: calc(100% - 50px);
            }

            .rank-table-wrap .rank-row .rank-stat {
                margin-left: 46px;
            }

            .btn-cta,
            .btn-cta-outline {
                padding: 10px 18px;
                font-size: 14px;
            }
        }

/* roulang page: category4 */
:root {
            --brand-blue: #3A7BD5;
            --brand-blue-dark: #2E68B5;
            --brand-blue-light: #5B9BD5;
            --brand-blue-soft: #EEF3F8;
            --brand-blue-pale: #F5F7FA;
            --ink-strong: #1F2937;
            --ink-body: #4B5563;
            --ink-muted: #6B7280;
            --accent-orange: #F59E0B;
            --accent-green: #10B981;
            --border-light: #E5E9F0;
            --shadow-card: 0 2px 8px rgba(15, 35, 70, 0.06);
            --shadow-card-hover: 0 12px 28px rgba(15, 35, 70, 0.12);
            --radius-card: 14px;
            --radius-btn: 9px;
            --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
            --transition-base: 0.2s ease;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-sans);
            color: var(--ink-body);
            background-color: #ffffff;
            margin: 0;
            line-height: 1.7;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        a {
            color: var(--brand-blue);
            text-decoration: none;
            transition: color var(--transition-base);
        }
        a:hover {
            color: var(--brand-blue-dark);
        }
        a:focus-visible {
            outline: 2px solid var(--brand-blue);
            outline-offset: 2px;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            max-width: 1200px;
        }

        /* Top info bar */
        .top-bar {
            background: var(--brand-blue-dark);
            color: rgba(255, 255, 255, 0.9);
            font-size: 13px;
            height: 36px;
            display: flex;
            align-items: center;
        }
        .top-bar .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }
        .top-bar .domain-info {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .top-bar .domain-info i {
            font-size: 12px;
            opacity: 0.7;
        }
        .top-bar .quick-actions {
            display: flex;
            align-items: center;
            gap: 14px;
        }
        .top-bar .quick-actions a {
            color: rgba(255, 255, 255, 0.9);
            font-weight: 500;
            transition: color var(--transition-base);
        }
        .top-bar .quick-actions a:hover {
            color: #ffffff;
        }
        .top-bar .quick-actions .divider {
            width: 1px;
            height: 14px;
            background: rgba(255, 255, 255, 0.25);
        }

        /* Main header and nav */
        .main-header {
            background: #ffffff;
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.04);
            position: sticky;
            top: 0;
            z-index: 1030;
            padding: 0;
            border-bottom: 1px solid var(--border-light);
        }
        .navbar-brand-custom {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.45rem;
            font-weight: 700;
            color: var(--ink-strong);
            letter-spacing: 0.5px;
        }
        .navbar-brand-custom .brand-icon {
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, var(--brand-blue), var(--brand-blue-light));
            border-radius: 10px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 18px;
            box-shadow: 0 4px 10px rgba(58, 123, 213, 0.3);
        }
        .navbar-brand-custom:hover {
            color: var(--ink-strong);
        }
        .main-nav {
            padding: 12px 0;
        }
        .main-nav .nav-link {
            font-size: 15px;
            color: var(--ink-body);
            font-weight: 600;
            padding: 8px 14px !important;
            border-radius: 8px;
            transition: all var(--transition-base);
            position: relative;
        }
        .main-nav .nav-link:hover,
        .main-nav .nav-link.active {
            color: var(--brand-blue);
            background: var(--brand-blue-soft);
        }
        .main-nav .nav-link::after {
            content: "";
            display: block;
            width: 0;
            height: 2px;
            background: var(--brand-blue);
            border-radius: 2px;
            margin-top: 4px;
            transition: width var(--transition-base);
        }
        .main-nav .nav-link.active::after,
        .main-nav .nav-link:hover::after {
            width: 100%;
        }
        .header-search {
            position: relative;
            margin-left: 18px;
        }
        .header-search input {
            border-radius: 30px;
            border: 1px solid var(--border-light);
            padding: 8px 36px 8px 16px;
            font-size: 13.5px;
            width: 200px;
            transition: all var(--transition-base);
            background: var(--brand-blue-pale);
        }
        .header-search input:focus {
            outline: none;
            border-color: var(--brand-blue);
            box-shadow: 0 0 0 3px rgba(58, 123, 213, 0.12);
            background: #fff;
            width: 230px;
        }
        .header-search i {
            position: absolute;
            right: 14px;
            top: 50%;
            transform: translateY(-50%);
            color: var(--ink-muted);
            font-size: 13px;
            pointer-events: none;
        }
        .navbar-toggler {
            border: none;
            padding: 8px 10px;
            font-size: 20px;
            color: var(--ink-strong);
        }
        .navbar-toggler:focus {
            box-shadow: none;
        }

        /* Breadcrumb */
        .breadcrumb-section {
            background: var(--brand-blue-pale);
            padding: 18px 0;
            font-size: 14px;
            border-bottom: 1px solid var(--border-light);
        }
        .breadcrumb-section .breadcrumb {
            margin: 0;
            --bs-breadcrumb-divider-color: var(--ink-muted);
        }
        .breadcrumb-section .breadcrumb-item a {
            color: var(--ink-muted);
            font-weight: 500;
        }
        .breadcrumb-section .breadcrumb-item a:hover {
            color: var(--brand-blue);
        }
        .breadcrumb-section .breadcrumb-item.active {
            color: var(--ink-strong);
            font-weight: 600;
        }

        /* Category compact header */
        .category-header {
            background: linear-gradient(135deg, #F0F6FF 0%, #E6EFFB 100%);
            padding: 40px 0 36px;
            position: relative;
            overflow: hidden;
        }
        .category-header::before {
            content: "";
            position: absolute;
            top: -80px;
            right: -60px;
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, rgba(58, 123, 213, 0.07) 0%, transparent 70%);
            border-radius: 50%;
        }
        .category-header .row {
            position: relative;
            z-index: 2;
        }
        .category-header h1 {
            font-size: 2.1rem;
            font-weight: 800;
            color: var(--ink-strong);
            margin-bottom: 10px;
            letter-spacing: 0.5px;
            line-height: 1.3;
        }
        .category-header h1 .highlight {
            color: var(--brand-blue);
        }
        .category-header .category-desc {
            font-size: 1.05rem;
            color: var(--ink-body);
            max-width: 680px;
            line-height: 1.8;
            margin-bottom: 0;
        }
        .category-header .header-meta {
            display: flex;
            gap: 18px;
            flex-wrap: wrap;
            margin-top: 16px;
            font-size: 13px;
            color: var(--ink-muted);
        }
        .category-header .header-meta span {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .category-header .header-meta i {
            color: var(--brand-blue);
        }

        /* Filter toolbar */
        .filter-toolbar {
            background: #ffffff;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-card);
            padding: 16px 20px;
            margin-bottom: 32px;
            box-shadow: var(--shadow-card);
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 14px;
        }
        .filter-toolbar .filter-tabs {
            display: flex;
            gap: 6px;
            flex-wrap: wrap;
        }
        .filter-toolbar .filter-tab {
            padding: 7px 16px;
            border-radius: 20px;
            background: var(--brand-blue-pale);
            color: var(--ink-body);
            font-size: 13.5px;
            font-weight: 600;
            border: 1px solid transparent;
            transition: all var(--transition-base);
            cursor: pointer;
            text-decoration: none;
            display: inline-block;
        }
        .filter-toolbar .filter-tab:hover {
            background: var(--brand-blue-soft);
            color: var(--brand-blue);
        }
        .filter-toolbar .filter-tab.active {
            background: var(--brand-blue);
            color: #fff;
            border-color: var(--brand-blue);
        }
        .filter-toolbar .sort-select {
            border: 1px solid var(--border-light);
            border-radius: 8px;
            padding: 7px 14px;
            font-size: 13.5px;
            color: var(--ink-body);
            background: #fff;
            min-width: 130px;
        }
        .filter-toolbar .sort-select:focus {
            outline: none;
            border-color: var(--brand-blue);
            box-shadow: 0 0 0 3px rgba(58, 123, 213, 0.12);
        }

        /* Section general */
        .section-block {
            padding: 48px 0;
        }
        .section-block.alt-bg {
            background: var(--brand-blue-pale);
        }
        .section-block.section-sm {
            padding: 36px 0;
        }
        .section-label {
            display: inline-block;
            font-size: 13px;
            font-weight: 700;
            color: var(--brand-blue);
            background: var(--brand-blue-soft);
            padding: 4px 14px;
            border-radius: 20px;
            margin-bottom: 10px;
            letter-spacing: 0.5px;
        }
        .section-title {
            font-size: 1.75rem;
            font-weight: 800;
            color: var(--ink-strong);
            margin-bottom: 14px;
            line-height: 1.35;
            letter-spacing: 0.3px;
        }
        .section-desc {
            font-size: 1rem;
            color: var(--ink-body);
            max-width: 720px;
            line-height: 1.8;
            margin-bottom: 24px;
        }

        /* Featured news card */
        .featured-card {
            background: #ffffff;
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: box-shadow var(--transition-base), transform var(--transition-base);
            border: 1px solid var(--border-light);
        }
        .featured-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }
        .featured-card .featured-img-wrap {
            position: relative;
            aspect-ratio: 21/9;
            overflow: hidden;
        }
        .featured-card .featured-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        .featured-card:hover .featured-img-wrap img {
            transform: scale(1.02);
        }
        .featured-card .featured-badge {
            position: absolute;
            top: 14px;
            left: 14px;
            background: var(--accent-orange);
            color: #fff;
            font-size: 12px;
            font-weight: 700;
            padding: 4px 12px;
            border-radius: 4px;
            letter-spacing: 0.5px;
        }
        .featured-card .featured-body {
            padding: 22px 24px;
        }
        .featured-card .featured-category {
            font-size: 13px;
            color: var(--brand-blue);
            font-weight: 600;
            margin-bottom: 6px;
        }
        .featured-card .featured-title {
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--ink-strong);
            margin-bottom: 8px;
            line-height: 1.45;
        }
        .featured-card .featured-excerpt {
            font-size: 14.5px;
            color: var(--ink-body);
            line-height: 1.75;
            margin-bottom: 12px;
        }
        .featured-card .featured-meta {
            display: flex;
            gap: 16px;
            font-size: 13px;
            color: var(--ink-muted);
            flex-wrap: wrap;
        }
        .featured-card .featured-meta span {
            display: flex;
            align-items: center;
            gap: 5px;
        }
        .featured-card .featured-meta i {
            font-size: 12px;
            color: var(--brand-blue-light);
        }

        /* News list cards */
        .news-list-card {
            background: #ffffff;
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: box-shadow var(--transition-base), transform var(--transition-base);
            border: 1px solid var(--border-light);
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .news-list-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }
        .news-list-card .news-img-wrap {
            aspect-ratio: 16/9;
            overflow: hidden;
            position: relative;
        }
        .news-list-card .news-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        .news-list-card:hover .news-img-wrap img {
            transform: scale(1.03);
        }
        .news-list-card .news-category-tag {
            position: absolute;
            top: 10px;
            left: 10px;
            background: rgba(31, 41, 55, 0.82);
            color: #fff;
            font-size: 11.5px;
            font-weight: 600;
            padding: 3px 10px;
            border-radius: 4px;
            letter-spacing: 0.5px;
        }
        .news-list-card .news-body {
            padding: 16px 18px 18px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .news-list-card .news-title {
            font-size: 1.02rem;
            font-weight: 700;
            color: var(--ink-strong);
            line-height: 1.5;
            margin-bottom: 6px;
        }
        .news-list-card .news-title a {
            color: inherit;
            transition: color var(--transition-base);
        }
        .news-list-card .news-title a:hover {
            color: var(--brand-blue);
        }
        .news-list-card .news-excerpt {
            font-size: 13.5px;
            color: var(--ink-body);
            line-height: 1.7;
            margin-bottom: 12px;
            flex: 1;
        }
        .news-list-card .news-meta {
            display: flex;
            gap: 14px;
            font-size: 12.5px;
            color: var(--ink-muted);
            padding-top: 10px;
            border-top: 1px solid var(--border-light);
            flex-wrap: wrap;
        }
        .news-list-card .news-meta span {
            display: flex;
            align-items: center;
            gap: 5px;
        }
        .news-list-card .news-meta i {
            font-size: 11px;
            color: var(--brand-blue-light);
        }

        /* Stats snapshot */
        .stats-snapshot {
            background: #ffffff;
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-light);
            padding: 28px 30px;
        }
        .stats-snapshot .stat-item {
            text-align: center;
            padding: 12px;
            border-right: 1px solid var(--border-light);
        }
        .stats-snapshot .stat-item:last-child {
            border-right: none;
        }
        .stats-snapshot .stat-number {
            font-size: 2rem;
            font-weight: 800;
            color: var(--brand-blue);
            line-height: 1.2;
        }
        .stats-snapshot .stat-label {
            font-size: 13.5px;
            color: var(--ink-muted);
            margin-top: 4px;
            font-weight: 500;
        }

        /* Tag cloud */
        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }
        .tag-cloud .tag-item {
            display: inline-block;
            padding: 7px 16px;
            border-radius: 20px;
            background: #ffffff;
            border: 1px solid var(--border-light);
            color: var(--ink-body);
            font-size: 13px;
            font-weight: 500;
            transition: all var(--transition-base);
            cursor: pointer;
        }
        .tag-cloud .tag-item:hover {
            background: var(--brand-blue-soft);
            color: var(--brand-blue);
            border-color: var(--brand-blue-light);
        }

        /* FAQ */
        .faq-accordion .accordion-item {
            border: 1px solid var(--border-light);
            border-radius: 8px !important;
            margin-bottom: 10px;
            overflow: hidden;
            box-shadow: var(--shadow-card);
            background: #fff;
        }
        .faq-accordion .accordion-button {
            font-weight: 700;
            color: var(--ink-strong);
            background: #fff;
            padding: 16px 20px;
            font-size: 15px;
            box-shadow: none;
            border: none;
        }
        .faq-accordion .accordion-button:not(.collapsed) {
            background: var(--brand-blue-soft);
            color: var(--brand-blue);
            box-shadow: none;
        }
        .faq-accordion .accordion-button:focus {
            box-shadow: none;
            border-color: var(--border-light);
        }
        .faq-accordion .accordion-button::after {
            background-size: 14px;
            transition: transform 0.25s ease;
        }
        .faq-accordion .accordion-body {
            padding: 16px 20px;
            font-size: 14.5px;
            color: var(--ink-body);
            line-height: 1.75;
            background: #fff;
        }

        /* CTA */
        .cta-section {
            background: linear-gradient(135deg, var(--brand-blue) 0%, var(--brand-blue-dark) 100%);
            border-radius: var(--radius-card);
            padding: 44px 40px;
            position: relative;
            overflow: hidden;
            color: #fff;
        }
        .cta-section::before {
            content: "";
            position: absolute;
            top: -60px;
            right: -40px;
            width: 260px;
            height: 260px;
            background: rgba(255, 255, 255, 0.08);
            border-radius: 50%;
        }
        .cta-section .cta-title {
            font-size: 1.5rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 10px;
            line-height: 1.4;
        }
        .cta-section .cta-desc {
            font-size: 15.5px;
            color: rgba(255, 255, 255, 0.85);
            line-height: 1.8;
            margin-bottom: 20px;
            max-width: 500px;
        }
        .btn-outline-white-light {
            background: #fff;
            color: var(--brand-blue);
            border: none;
            padding: 10px 24px;
            border-radius: var(--radius-btn);
            font-weight: 700;
            font-size: 14.5px;
            transition: all var(--transition-base);
            display: inline-block;
        }
        .btn-outline-white-light:hover {
            background: var(--brand-blue-soft);
            color: var(--brand-blue-dark);
            transform: translateY(-2px);
            box-shadow: 0 6px 16px rgba(0, 0, 0, 0.15);
        }

        /* Footer */
        .site-footer {
            background: #1E2A3A;
            color: rgba(255, 255, 255, 0.75);
            padding: 56px 0 28px;
            margin-top: 64px;
        }
        .site-footer .footer-logo {
            font-size: 1.4rem;
            font-weight: 700;
            color: #fff;
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 14px;
        }
        .site-footer .footer-logo i {
            color: var(--brand-blue-light);
            font-size: 1.5rem;
        }
        .site-footer h5 {
            color: #fff;
            font-size: 15px;
            font-weight: 700;
            margin-bottom: 14px;
            letter-spacing: 0.5px;
        }
        .site-footer ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .site-footer ul li {
            margin-bottom: 8px;
        }
        .site-footer ul li a {
            color: rgba(255, 255, 255, 0.65);
            font-size: 13.5px;
            transition: color var(--transition-base);
        }
        .site-footer ul li a:hover {
            color: #fff;
        }
        .site-footer .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            margin-top: 32px;
            padding-top: 18px;
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 10px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.5);
        }

        /* Responsive */
        @media (max-width: 991.98px) {
            .header-search {
                margin-left: 0;
                margin-top: 10px;
                width: 100%;
            }
            .header-search input {
                width: 100%;
            }
            .header-search input:focus {
                width: 100%;
            }
            .category-header h1 {
                font-size: 1.8rem;
            }
            .featured-card .featured-img-wrap {
                aspect-ratio: 16/7;
            }
        }
        @media (max-width: 767.98px) {
            .top-bar {
                font-size: 12px;
                height: 32px;
            }
            .top-bar .quick-actions .hide-sm {
                display: none;
            }
            .section-block {
                padding: 36px 0;
            }
            .section-title {
                font-size: 1.45rem;
            }
            .category-header {
                padding: 28px 0 24px;
            }
            .category-header h1 {
                font-size: 1.5rem;
            }
            .featured-card .featured-img-wrap {
                aspect-ratio: 16/8;
            }
            .featured-card .featured-body {
                padding: 16px 18px;
            }
            .featured-card .featured-title {
                font-size: 1.1rem;
            }
            .stats-snapshot .stat-item {
                border-right: none;
                border-bottom: 1px solid var(--border-light);
                padding: 10px;
            }
            .stats-snapshot .stat-item:last-child {
                border-bottom: none;
            }
            .stats-snapshot .stat-number {
                font-size: 1.5rem;
            }
            .cta-section {
                padding: 32px 24px;
            }
            .cta-section .cta-title {
                font-size: 1.25rem;
            }
            .site-footer {
                padding: 40px 0 20px;
                margin-top: 44px;
            }
            .site-footer .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 6px;
            }
            .filter-toolbar {
                flex-direction: column;
                align-items: stretch;
                padding: 14px 16px;
            }
            .filter-toolbar .sort-select {
                width: 100%;
            }
        }
        @media (max-width: 575.98px) {
            body {
                font-size: 15px;
            }
            .navbar-brand-custom {
                font-size: 1.2rem;
            }
            .navbar-brand-custom .brand-icon {
                width: 30px;
                height: 30px;
                font-size: 15px;
                border-radius: 8px;
            }
            .main-nav {
                padding: 8px 0;
            }
            .category-header h1 {
                font-size: 1.35rem;
            }
            .featured-card .featured-img-wrap {
                aspect-ratio: 16/9;
            }
            .news-list-card .news-title {
                font-size: 0.95rem;
            }
            .section-title {
                font-size: 1.3rem;
            }
        }

/* roulang page: category5 */
:root {
            --brand-blue: #3A7BD5;
            --brand-blue-dark: #2E68B5;
            --brand-blue-light: #5B9BD5;
            --brand-blue-soft: #EEF3F8;
            --brand-blue-pale: #F5F7FA;
            --ink-strong: #1F2937;
            --ink-body: #4B5563;
            --ink-muted: #6B7280;
            --accent-orange: #F59E0B;
            --accent-green: #10B981;
            --border-light: #E5E9F0;
            --shadow-card: 0 2px 8px rgba(15, 35, 70, 0.06);
            --shadow-card-hover: 0 12px 28px rgba(15, 35, 70, 0.12);
            --radius-card: 14px;
            --radius-btn: 9px;
            --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
            --transition-base: 0.2s ease;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-sans);
            color: var(--ink-body);
            background-color: #ffffff;
            margin: 0;
            line-height: 1.7;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        a {
            color: var(--brand-blue);
            text-decoration: none;
            transition: color var(--transition-base);
        }
        a:hover {
            color: var(--brand-blue-dark);
        }
        a:focus-visible {
            outline: 2px solid var(--brand-blue);
            outline-offset: 2px;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            max-width: 1200px;
        }

        /* 顶部信息条 */
        .top-bar {
            background: var(--brand-blue-dark);
            color: rgba(255, 255, 255, 0.9);
            font-size: 13px;
            height: 36px;
            line-height: 36px;
        }
        .top-bar .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }
        .top-bar .domain-info {
            display: flex;
            align-items: center;
            gap: 8px;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }
        .top-bar .domain-info i {
            font-size: 12px;
            opacity: 0.7;
        }
        .top-bar .quick-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .top-bar .quick-actions a {
            color: rgba(255, 255, 255, 0.9);
            font-weight: 500;
            transition: color var(--transition-base);
        }
        .top-bar .quick-actions a:hover {
            color: #ffffff;
        }
        .top-bar .quick-actions .divider {
            width: 1px;
            height: 14px;
            background: rgba(255, 255, 255, 0.25);
        }

        /* 主导航 */
        .main-header {
            background: #ffffff;
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.04);
            position: sticky;
            top: 0;
            z-index: 1030;
            padding: 0;
            border-bottom: 1px solid var(--border-light);
        }
        .navbar-brand-custom {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.45rem;
            font-weight: 700;
            color: var(--ink-strong);
            letter-spacing: 0.5px;
            white-space: nowrap;
        }
        .navbar-brand-custom .brand-icon {
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, var(--brand-blue), var(--brand-blue-light));
            border-radius: 10px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 18px;
            box-shadow: 0 4px 10px rgba(58, 123, 213, 0.3);
            flex-shrink: 0;
        }
        .navbar-brand-custom:hover {
            color: var(--ink-strong);
        }
        .main-nav {
            padding: 12px 0;
        }
        .main-nav .nav-link {
            font-size: 15px;
            color: var(--ink-body);
            font-weight: 600;
            padding: 8px 14px !important;
            border-radius: 8px;
            transition: all var(--transition-base);
            position: relative;
            white-space: nowrap;
        }
        .main-nav .nav-link:hover,
        .main-nav .nav-link.active {
            color: var(--brand-blue);
            background: var(--brand-blue-soft);
        }
        .main-nav .nav-link::after {
            content: "";
            display: block;
            width: 0;
            height: 2px;
            background: var(--brand-blue);
            border-radius: 2px;
            margin-top: 4px;
            transition: width var(--transition-base);
        }
        .main-nav .nav-link.active::after,
        .main-nav .nav-link:hover::after {
            width: 100%;
        }
        .header-search {
            position: relative;
            margin-left: 18px;
        }
        .header-search input {
            border-radius: 30px;
            border: 1px solid var(--border-light);
            padding: 8px 36px 8px 16px;
            font-size: 13.5px;
            width: 200px;
            transition: all var(--transition-base);
            background: var(--brand-blue-pale);
            color: var(--ink-strong);
        }
        .header-search input:focus {
            outline: none;
            border-color: var(--brand-blue);
            box-shadow: 0 0 0 3px rgba(58, 123, 213, 0.12);
            background: #fff;
            width: 230px;
        }
        .header-search input::placeholder {
            color: var(--ink-muted);
        }
        .header-search i {
            position: absolute;
            right: 14px;
            top: 50%;
            transform: translateY(-50%);
            color: var(--ink-muted);
            font-size: 13px;
            pointer-events: none;
        }
        .navbar-toggler {
            border: none;
            padding: 8px 10px;
            font-size: 20px;
            color: var(--ink-strong);
        }
        .navbar-toggler:focus {
            box-shadow: none;
        }

        /* 面包屑 */
        .breadcrumb-section {
            background: var(--brand-blue-pale);
            border-bottom: 1px solid var(--border-light);
            padding: 12px 0;
            font-size: 14px;
        }
        .breadcrumb-section .breadcrumb {
            margin: 0;
            --bs-breadcrumb-divider: '›';
        }
        .breadcrumb-section .breadcrumb-item a {
            color: var(--ink-muted);
            font-weight: 500;
        }
        .breadcrumb-section .breadcrumb-item a:hover {
            color: var(--brand-blue);
        }
        .breadcrumb-section .breadcrumb-item.active {
            color: var(--brand-blue);
            font-weight: 600;
        }

        /* 分类头部 */
        .category-header {
            background: linear-gradient(135deg, #F0F6FF 0%, #E6EFFB 100%);
            padding: 48px 0 40px;
            position: relative;
            overflow: hidden;
            border-bottom: 1px solid var(--border-light);
        }
        .category-header::before {
            content: "";
            position: absolute;
            top: -140px;
            right: -80px;
            width: 420px;
            height: 420px;
            background: radial-gradient(circle, rgba(58, 123, 213, 0.1) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .category-header::after {
            content: "";
            position: absolute;
            bottom: -100px;
            left: -60px;
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, rgba(245, 158, 11, 0.06) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .category-header .row {
            position: relative;
            z-index: 2;
        }
        .category-h1 {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--ink-strong);
            line-height: 1.3;
            margin-bottom: 12px;
            letter-spacing: 0.5px;
        }
        .category-h1 .highlight {
            color: var(--brand-blue);
        }
        .category-desc {
            font-size: 1.05rem;
            color: var(--ink-body);
            max-width: 720px;
            line-height: 1.75;
            margin-bottom: 0;
        }
        .category-meta {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 20px;
            margin-top: 16px;
        }
        .category-meta .meta-item {
            display: flex;
            align-items: center;
            gap: 6px;
            font-size: 13.5px;
            color: var(--ink-muted);
            font-weight: 500;
            background: rgba(255, 255, 255, 0.7);
            padding: 6px 14px;
            border-radius: 30px;
            border: 1px solid rgba(58, 123, 213, 0.12);
        }
        .category-meta .meta-item i {
            color: var(--brand-blue);
            font-size: 14px;
        }

        /* 筛选工具条 */
        .filter-toolbar {
            background: #ffffff;
            border-bottom: 1px solid var(--border-light);
            padding: 16px 0;
            position: sticky;
            top: 68px;
            z-index: 100;
        }
        .filter-toolbar .filter-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            align-items: center;
        }
        .filter-tags .filter-tag {
            padding: 6px 16px;
            border-radius: 30px;
            font-size: 13.5px;
            font-weight: 600;
            color: var(--ink-body);
            background: var(--brand-blue-pale);
            border: 1px solid transparent;
            cursor: pointer;
            transition: all var(--transition-base);
            white-space: nowrap;
        }
        .filter-tags .filter-tag:hover {
            background: var(--brand-blue-soft);
            color: var(--brand-blue);
        }
        .filter-tags .filter-tag.active {
            background: var(--brand-blue);
            color: #fff;
            border-color: var(--brand-blue);
        }
        .filter-toolbar .sort-select {
            border: 1px solid var(--border-light);
            border-radius: 8px;
            padding: 7px 14px;
            font-size: 13.5px;
            color: var(--ink-body);
            background: #fff;
            font-weight: 500;
            cursor: pointer;
            transition: border-color var(--transition-base);
            min-width: 120px;
        }
        .filter-toolbar .sort-select:focus {
            outline: none;
            border-color: var(--brand-blue);
            box-shadow: 0 0 0 3px rgba(58, 123, 213, 0.12);
        }

        /* Section 通用 */
        .section {
            padding: 48px 0;
        }
        .section-alt {
            background: var(--brand-blue-pale);
        }
        .section-title {
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--ink-strong);
            margin-bottom: 8px;
            letter-spacing: 0.3px;
        }
        .section-subtitle {
            font-size: 0.98rem;
            color: var(--ink-muted);
            margin-bottom: 28px;
            line-height: 1.7;
        }
        .section-header {
            margin-bottom: 24px;
        }
        .section-header .section-title {
            margin-bottom: 4px;
        }
        .section-link {
            font-size: 14px;
            font-weight: 600;
            color: var(--brand-blue);
            display: inline-flex;
            align-items: center;
            gap: 5px;
            transition: color var(--transition-base);
        }
        .section-link:hover {
            color: var(--brand-blue-dark);
        }
        .section-link i {
            font-size: 13px;
            transition: transform var(--transition-base);
        }
        .section-link:hover i {
            transform: translateX(3px);
        }

        /* 专题卡片列表 */
        .topic-card {
            background: #ffffff;
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: all var(--transition-base);
            border: 1px solid var(--border-light);
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .topic-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
            border-color: rgba(58, 123, 213, 0.25);
        }
        .topic-card .card-img-wrap {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16 / 9;
            background: var(--brand-blue-soft);
            flex-shrink: 0;
        }
        .topic-card .card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.3s ease;
        }
        .topic-card:hover .card-img-wrap img {
            transform: scale(1.04);
        }
        .topic-card .card-badge {
            position: absolute;
            top: 12px;
            left: 12px;
            padding: 5px 14px;
            border-radius: 30px;
            font-size: 12px;
            font-weight: 700;
            letter-spacing: 0.3px;
            color: #fff;
            z-index: 2;
        }
        .badge-live {
            background: var(--accent-green);
        }
        .badge-soon {
            background: var(--accent-orange);
        }
        .badge-featured {
            background: var(--brand-blue);
        }
        .topic-card .card-body {
            padding: 18px 20px 20px;
            flex-grow: 1;
            display: flex;
            flex-direction: column;
        }
        .topic-card .card-title {
            font-size: 1.08rem;
            font-weight: 700;
            color: var(--ink-strong);
            line-height: 1.45;
            margin-bottom: 8px;
        }
        .topic-card .card-text {
            font-size: 0.9rem;
            color: var(--ink-muted);
            line-height: 1.65;
            margin-bottom: 12px;
            flex-grow: 1;
        }
        .topic-card .card-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            font-size: 12.5px;
            color: var(--ink-muted);
            padding-top: 12px;
            border-top: 1px solid var(--border-light);
        }
        .topic-card .card-meta span {
            display: flex;
            align-items: center;
            gap: 5px;
        }
        .topic-card .card-meta i {
            color: var(--brand-blue-light);
        }

        /* 横向大卡片 */
        .topic-card-horizontal {
            background: #ffffff;
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: all var(--transition-base);
            border: 1px solid var(--border-light);
            display: flex;
            flex-direction: row;
            margin-bottom: 20px;
        }
        .topic-card-horizontal:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
            border-color: rgba(58, 123, 213, 0.25);
        }
        .topic-card-horizontal .card-img-wrap {
            width: 40%;
            min-width: 280px;
            position: relative;
            overflow: hidden;
            background: var(--brand-blue-soft);
            flex-shrink: 0;
        }
        .topic-card-horizontal .card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.3s ease;
            position: absolute;
            top: 0;
            left: 0;
        }
        .topic-card-horizontal:hover .card-img-wrap img {
            transform: scale(1.04);
        }
        .topic-card-horizontal .card-badge {
            position: absolute;
            top: 14px;
            left: 14px;
            padding: 5px 14px;
            border-radius: 30px;
            font-size: 12px;
            font-weight: 700;
            color: #fff;
            z-index: 2;
        }
        .topic-card-horizontal .card-body {
            padding: 24px 28px;
            flex-grow: 1;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }
        .topic-card-horizontal .card-title {
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--ink-strong);
            line-height: 1.4;
            margin-bottom: 10px;
        }
        .topic-card-horizontal .card-text {
            font-size: 0.95rem;
            color: var(--ink-muted);
            line-height: 1.7;
            margin-bottom: 14px;
        }
        .topic-card-horizontal .card-meta {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 18px;
            font-size: 13px;
            color: var(--ink-muted);
        }
        .topic-card-horizontal .card-meta span {
            display: flex;
            align-items: center;
            gap: 5px;
        }
        .topic-card-horizontal .card-meta i {
            color: var(--brand-blue-light);
        }

        /* 专题聚焦区 */
        .focus-spotlight {
            background: linear-gradient(135deg, #1E2A3A 0%, #24354A 100%);
            border-radius: 16px;
            overflow: hidden;
            padding: 0;
            position: relative;
        }
        .focus-spotlight .spotlight-bg {
            position: absolute;
            top: 0;
            right: 0;
            width: 55%;
            height: 100%;
            opacity: 0.12;
            object-fit: cover;
            z-index: 1;
        }
        .focus-spotlight .spotlight-content {
            position: relative;
            z-index: 2;
            padding: 48px 44px;
        }
        .focus-spotlight .spotlight-label {
            display: inline-block;
            padding: 5px 16px;
            border-radius: 30px;
            font-size: 12px;
            font-weight: 700;
            letter-spacing: 0.5px;
            color: #fff;
            background: rgba(245, 158, 11, 0.85);
            margin-bottom: 14px;
        }
        .focus-spotlight .spotlight-title {
            font-size: 1.7rem;
            font-weight: 800;
            color: #ffffff;
            line-height: 1.35;
            margin-bottom: 12px;
        }
        .focus-spotlight .spotlight-text {
            font-size: 0.98rem;
            color: rgba(255, 255, 255, 0.72);
            line-height: 1.75;
            max-width: 560px;
            margin-bottom: 20px;
        }
        .focus-spotlight .btn-spotlight {
            background: #ffffff;
            color: var(--ink-strong);
            border: none;
            padding: 10px 24px;
            border-radius: var(--radius-btn);
            font-weight: 700;
            font-size: 14px;
            transition: all var(--transition-base);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .focus-spotlight .btn-spotlight:hover {
            background: var(--brand-blue-soft);
            transform: translateY(-1px);
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
        }

        /* 数据快照 */
        .stat-snapshot {
            background: #ffffff;
            border-radius: var(--radius-card);
            padding: 28px 24px;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-light);
            text-align: center;
            height: 100%;
            transition: all var(--transition-base);
        }
        .stat-snapshot:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }
        .stat-snapshot .stat-number {
            font-size: 2.4rem;
            font-weight: 800;
            color: var(--brand-blue);
            line-height: 1.2;
            margin-bottom: 6px;
            letter-spacing: 0.5px;
        }
        .stat-snapshot .stat-number .unit {
            font-size: 1rem;
            font-weight: 600;
            color: var(--ink-muted);
            margin-left: 2px;
        }
        .stat-snapshot .stat-label {
            font-size: 14px;
            font-weight: 600;
            color: var(--ink-muted);
            letter-spacing: 0.3px;
        }

        /* 热门排行 */
        .rank-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .rank-list li {
            display: flex;
            align-items: center;
            gap: 14px;
            padding: 14px 16px;
            border-radius: 10px;
            transition: all var(--transition-base);
            border-bottom: 1px solid var(--border-light);
            cursor: default;
        }
        .rank-list li:last-child {
            border-bottom: none;
        }
        .rank-list li:hover {
            background: var(--brand-blue-pale);
        }
        .rank-list .rank-num {
            width: 32px;
            height: 32px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 14px;
            flex-shrink: 0;
            background: var(--brand-blue-soft);
            color: var(--brand-blue);
        }
        .rank-list li:nth-child(1) .rank-num,
        .rank-list li:nth-child(2) .rank-num,
        .rank-list li:nth-child(3) .rank-num {
            background: var(--accent-orange);
            color: #fff;
        }
        .rank-list .rank-info {
            flex-grow: 1;
            min-width: 0;
        }
        .rank-list .rank-title {
            font-size: 14.5px;
            font-weight: 600;
            color: var(--ink-strong);
            line-height: 1.4;
            margin-bottom: 2px;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }
        .rank-list .rank-meta {
            font-size: 12.5px;
            color: var(--ink-muted);
            display: flex;
            gap: 12px;
        }
        .rank-list .rank-tag {
            padding: 3px 10px;
            border-radius: 20px;
            font-size: 11px;
            font-weight: 700;
            flex-shrink: 0;
            background: var(--brand-blue-soft);
            color: var(--brand-blue);
        }

        /* 订阅CTA */
        .subscribe-cta {
            background: linear-gradient(135deg, var(--brand-blue) 0%, var(--brand-blue-dark) 100%);
            border-radius: 16px;
            padding: 44px 40px;
            position: relative;
            overflow: hidden;
        }
        .subscribe-cta::before {
            content: "";
            position: absolute;
            top: -60px;
            right: -40px;
            width: 260px;
            height: 260px;
            background: rgba(255, 255, 255, 0.08);
            border-radius: 50%;
            pointer-events: none;
        }
        .subscribe-cta::after {
            content: "";
            position: absolute;
            bottom: -80px;
            left: -30px;
            width: 200px;
            height: 200px;
            background: rgba(255, 255, 255, 0.05);
            border-radius: 50%;
            pointer-events: none;
        }
        .subscribe-cta .cta-inner {
            position: relative;
            z-index: 2;
        }
        .subscribe-cta .cta-title {
            font-size: 1.5rem;
            font-weight: 800;
            color: #ffffff;
            margin-bottom: 8px;
        }
        .subscribe-cta .cta-text {
            font-size: 0.95rem;
            color: rgba(255, 255, 255, 0.8);
            line-height: 1.7;
            margin-bottom: 22px;
            max-width: 520px;
        }
        .subscribe-cta .cta-form {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }
        .subscribe-cta .cta-form select,
        .subscribe-cta .cta-form input {
            border: none;
            border-radius: var(--radius-btn);
            padding: 10px 16px;
            font-size: 14px;
            font-weight: 500;
            background: rgba(255, 255, 255, 0.95);
            color: var(--ink-strong);
            min-width: 140px;
        }
        .subscribe-cta .cta-form select:focus,
        .subscribe-cta .cta-form input:focus {
            outline: none;
            box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.35);
        }
        .subscribe-cta .btn-cta {
            background: #ffffff;
            color: var(--brand-blue-dark);
            border: none;
            padding: 10px 26px;
            border-radius: var(--radius-btn);
            font-weight: 700;
            font-size: 14px;
            transition: all var(--transition-base);
            white-space: nowrap;
        }
        .subscribe-cta .btn-cta:hover {
            background: var(--brand-blue-soft);
            transform: translateY(-1px);
            box-shadow: 0 4px 14px rgba(0, 0, 0, 0.18);
        }

        /* FAQ */
        .accordion-custom .accordion-item {
            border: 1px solid var(--border-light);
            border-radius: 10px;
            margin-bottom: 10px;
            overflow: hidden;
            background: #ffffff;
            transition: all var(--transition-base);
        }
        .accordion-custom .accordion-item:hover {
            border-color: rgba(58, 123, 213, 0.25);
        }
        .accordion-custom .accordion-button {
            font-weight: 700;
            font-size: 15px;
            color: var(--ink-strong);
            background: #ffffff;
            padding: 16px 20px;
            border: none;
            box-shadow: none;
            border-radius: 10px !important;
        }
        .accordion-custom .accordion-button:not(.collapsed) {
            background: var(--brand-blue-pale);
            color: var(--brand-blue);
            box-shadow: none;
        }
        .accordion-custom .accordion-button:focus {
            box-shadow: 0 0 0 3px rgba(58, 123, 213, 0.15);
        }
        .accordion-custom .accordion-body {
            font-size: 14.5px;
            color: var(--ink-body);
            line-height: 1.75;
            padding: 16px 20px 18px;
            background: #fff;
        }

        /* 页脚 */
        .site-footer {
            background: #1E2A3A;
            color: rgba(255, 255, 255, 0.7);
            padding: 48px 0 24px;
            font-size: 14px;
        }
        .site-footer .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.4rem;
            font-weight: 700;
            color: #ffffff;
            margin-bottom: 14px;
        }
        .site-footer .footer-logo i {
            color: var(--brand-blue-light);
        }
        .site-footer h5 {
            color: #ffffff;
            font-size: 15px;
            font-weight: 700;
            margin-bottom: 14px;
            letter-spacing: 0.3px;
        }
        .site-footer ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .site-footer ul li {
            margin-bottom: 8px;
        }
        .site-footer ul li a {
            color: rgba(255, 255, 255, 0.65);
            transition: color var(--transition-base);
            font-size: 13.5px;
        }
        .site-footer ul li a:hover {
            color: #ffffff;
        }
        .site-footer .footer-bottom {
            margin-top: 32px;
            padding-top: 18px;
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 8px;
            font-size: 12.5px;
            color: rgba(255, 255, 255, 0.5);
        }

        /* 响应式 */
        @media (max-width: 991.98px) {
            .header-search {
                margin-left: 0;
                margin-top: 12px;
                width: 100%;
            }
            .header-search input {
                width: 100%;
            }
            .header-search input:focus {
                width: 100%;
            }
            .topic-card-horizontal .card-img-wrap {
                width: 35%;
                min-width: 200px;
            }
            .topic-card-horizontal .card-body {
                padding: 18px 20px;
            }
            .topic-card-horizontal .card-title {
                font-size: 1.1rem;
            }
            .filter-toolbar {
                top: 64px;
            }
        }
        @media (max-width: 767.98px) {
            .category-header {
                padding: 32px 0 28px;
            }
            .category-h1 {
                font-size: 1.6rem;
            }
            .category-desc {
                font-size: 0.95rem;
            }
            .category-meta {
                gap: 8px;
            }
            .category-meta .meta-item {
                font-size: 12px;
                padding: 4px 10px;
            }
            .topic-card-horizontal {
                flex-direction: column;
            }
            .topic-card-horizontal .card-img-wrap {
                width: 100%;
                min-width: auto;
                aspect-ratio: 16/9;
                position: relative;
            }
            .topic-card-horizontal .card-img-wrap img {
                position: absolute;
                top: 0;
                left: 0;
                width: 100%;
                height: 100%;
                object-fit: cover;
            }
            .topic-card-horizontal .card-body {
                padding: 16px 18px;
            }
            .topic-card-horizontal .card-title {
                font-size: 1.15rem;
            }
            .section {
                padding: 32px 0;
            }
            .section-title {
                font-size: 1.35rem;
            }
            .focus-spotlight .spotlight-content {
                padding: 28px 22px;
            }
            .focus-spotlight .spotlight-title {
                font-size: 1.3rem;
            }
            .subscribe-cta {
                padding: 28px 22px;
            }
            .subscribe-cta .cta-title {
                font-size: 1.25rem;
            }
            .subscribe-cta .cta-form select,
            .subscribe-cta .cta-form input {
                min-width: 100%;
                width: 100%;
            }
            .subscribe-cta .btn-cta {
                width: 100%;
            }
            .filter-toolbar {
                top: 56px;
                padding: 10px 0;
            }
            .filter-tags .filter-tag {
                font-size: 12px;
                padding: 5px 12px;
            }
            .top-bar .domain-info span {
                display: none;
            }
            .top-bar .quick-actions .divider {
                display: none;
            }
            .top-bar {
                font-size: 12px;
            }
            .stat-snapshot .stat-number {
                font-size: 1.8rem;
            }
        }
        @media (max-width: 519.98px) {
            .category-h1 {
                font-size: 1.4rem;
            }
            .breadcrumb-section {
                font-size: 12px;
            }
            .category-meta .meta-item {
                font-size: 11px;
            }
            .topic-card .card-title {
                font-size: 1rem;
            }
            .section-title {
                font-size: 1.25rem;
            }
            .rank-list li {
                padding: 10px 12px;
            }
            .rank-list .rank-title {
                font-size: 13px;
            }
        }

/* roulang page: category6 */
:root {
            --brand-blue: #3A7BD5;
            --brand-blue-dark: #2E68B5;
            --brand-blue-light: #5B9BD5;
            --brand-blue-soft: #EEF3F8;
            --brand-blue-pale: #F5F7FA;
            --ink-strong: #1F2937;
            --ink-body: #4B5563;
            --ink-muted: #6B7280;
            --accent-orange: #F59E0B;
            --accent-green: #10B981;
            --border-light: #E5E9F0;
            --shadow-card: 0 2px 8px rgba(15, 35, 70, 0.06);
            --shadow-card-hover: 0 12px 28px rgba(15, 35, 70, 0.12);
            --radius-card: 14px;
            --radius-btn: 9px;
            --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
            --transition-base: 0.2s ease;
        }

        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-sans);
            color: var(--ink-body);
            background-color: #ffffff;
            margin: 0;
            line-height: 1.7;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        a {
            color: var(--brand-blue);
            text-decoration: none;
            transition: color var(--transition-base);
        }
        a:hover {
            color: var(--brand-blue-dark);
        }
        a:focus-visible {
            outline: 2px solid var(--brand-blue);
            outline-offset: 2px;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            max-width: 1200px;
        }

        /* 顶部信息条 */
        .top-bar {
            background: #1E2A3A;
            color: rgba(255, 255, 255, 0.85);
            font-size: 12.5px;
            height: 36px;
            line-height: 36px;
        }
        .top-bar .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }
        .top-bar .domain-info {
            display: flex;
            align-items: center;
            gap: 8px;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }
        .top-bar .domain-info i {
            font-size: 12px;
            opacity: 0.7;
        }
        .top-bar .quick-actions {
            display: flex;
            align-items: center;
            gap: 12px;
            white-space: nowrap;
        }
        .top-bar .quick-actions a {
            color: rgba(255, 255, 255, 0.85);
            font-weight: 500;
            transition: color var(--transition-base);
        }
        .top-bar .quick-actions a:hover {
            color: #ffffff;
        }
        .top-bar .quick-actions .divider {
            width: 1px;
            height: 14px;
            background: rgba(255, 255, 255, 0.25);
        }
        .top-bar .quick-actions a i {
            margin-right: 4px;
            font-size: 11px;
        }

        /* 主导航 */
        .main-header {
            background: #ffffff;
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.04);
            position: sticky;
            top: 0;
            z-index: 1030;
            padding: 0;
            border-bottom: 1px solid var(--border-light);
        }
        .navbar-brand-custom {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.45rem;
            font-weight: 700;
            color: var(--ink-strong);
            letter-spacing: 0.5px;
        }
        .navbar-brand-custom .brand-icon {
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, var(--brand-blue), var(--brand-blue-light));
            border-radius: 10px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 18px;
            box-shadow: 0 4px 10px rgba(58, 123, 213, 0.3);
        }
        .navbar-brand-custom:hover {
            color: var(--ink-strong);
        }
        .main-nav {
            padding: 12px 0;
        }
        .main-nav .nav-link {
            font-size: 15px;
            color: var(--ink-body);
            font-weight: 600;
            padding: 8px 14px !important;
            border-radius: 8px;
            transition: all var(--transition-base);
            position: relative;
        }
        .main-nav .nav-link:hover,
        .main-nav .nav-link.active {
            color: var(--brand-blue);
            background: var(--brand-blue-soft);
        }
        .main-nav .nav-link::after {
            content: "";
            display: block;
            width: 0;
            height: 2px;
            background: var(--brand-blue);
            border-radius: 2px;
            margin-top: 4px;
            transition: width var(--transition-base);
        }
        .main-nav .nav-link.active::after,
        .main-nav .nav-link:hover::after {
            width: 100%;
        }
        .header-search {
            position: relative;
            margin-left: 18px;
        }
        .header-search input {
            border-radius: 30px;
            border: 1px solid var(--border-light);
            padding: 8px 36px 8px 16px;
            font-size: 13.5px;
            width: 200px;
            transition: all var(--transition-base);
            background: var(--brand-blue-pale);
        }
        .header-search input:focus {
            outline: none;
            border-color: var(--brand-blue);
            box-shadow: 0 0 0 3px rgba(58, 123, 213, 0.12);
            background: #fff;
            width: 230px;
        }
        .header-search i {
            position: absolute;
            right: 14px;
            top: 50%;
            transform: translateY(-50%);
            color: var(--ink-muted);
            font-size: 13px;
            pointer-events: none;
        }
        .navbar-toggler {
            border: none;
            padding: 8px 10px;
            font-size: 20px;
            color: var(--ink-strong);
        }
        .navbar-toggler:focus {
            box-shadow: none;
        }

        /* 面包屑 */
        .breadcrumb-bar {
            padding: 18px 0 0;
            background: #fff;
        }
        .breadcrumb-bar .breadcrumb {
            margin: 0;
            font-size: 14px;
            color: var(--ink-muted);
        }
        .breadcrumb-bar .breadcrumb a {
            color: var(--brand-blue);
            font-weight: 500;
        }
        .breadcrumb-bar .breadcrumb a:hover {
            color: var(--brand-blue-dark);
        }
        .breadcrumb-bar .breadcrumb .active {
            color: var(--ink-muted);
            font-weight: 400;
        }

        /* 分类Hero - 紧凑版 */
        .category-hero {
            background: linear-gradient(135deg, #F0F6FF 0%, #E6EFFB 100%);
            padding: 36px 0 40px;
            position: relative;
            overflow: hidden;
            margin-bottom: 10px;
        }
        .category-hero::before {
            content: "";
            position: absolute;
            top: -100px;
            right: -80px;
            width: 350px;
            height: 350px;
            background: radial-gradient(circle, rgba(58, 123, 213, 0.08) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .category-hero .row {
            position: relative;
            z-index: 2;
        }
        .category-hero .hero-copy {
            padding-right: 30px;
        }
        .category-hero .hero-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(58, 123, 213, 0.1);
            color: var(--brand-blue);
            font-size: 13px;
            font-weight: 600;
            padding: 5px 14px;
            border-radius: 20px;
            margin-bottom: 16px;
        }
        .category-hero .hero-tag i {
            font-size: 12px;
        }
        .category-hero h1 {
            font-size: 2rem;
            font-weight: 800;
            color: var(--ink-strong);
            line-height: 1.3;
            margin-bottom: 12px;
            letter-spacing: 0.5px;
        }
        .category-hero h1 .highlight {
            color: var(--brand-blue);
        }
        .category-hero .hero-desc {
            font-size: 1rem;
            color: var(--ink-body);
            max-width: 560px;
            line-height: 1.8;
            margin-bottom: 20px;
        }
        .category-hero .countdown-wrap {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            margin-bottom: 18px;
        }
        .category-hero .countdown-label {
            font-size: 14px;
            color: var(--ink-strong);
            font-weight: 600;
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .category-hero .countdown-label i {
            color: var(--accent-orange);
        }
        .countdown-timer {
            display: flex;
            gap: 8px;
        }
        .countdown-timer .time-block {
            background: #fff;
            border: 1px solid var(--border-light);
            border-radius: 8px;
            padding: 6px 12px;
            text-align: center;
            min-width: 52px;
            box-shadow: var(--shadow-card);
        }
        .countdown-timer .time-block .num {
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--ink-strong);
            line-height: 1.2;
        }
        .countdown-timer .time-block .unit {
            font-size: 11px;
            color: var(--ink-muted);
        }
        .category-hero .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
        }
        .category-hero .hero-visual {
            position: relative;
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card-hover);
            min-height: 240px;
        }
        .category-hero .hero-visual img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            min-height: 240px;
        }
        .category-hero .hero-visual .visual-overlay {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            padding: 18px 20px;
            background: linear-gradient(to top, rgba(15, 35, 70, 0.85) 0%, transparent 100%);
            color: #fff;
        }
        .category-hero .hero-visual .visual-overlay .match-info {
            font-size: 13px;
            font-weight: 600;
            opacity: 0.9;
        }
        .category-hero .hero-visual .visual-overlay .match-name {
            font-size: 1.1rem;
            font-weight: 700;
        }

        /* 板块通用 */
        .section-block {
            padding: 42px 0;
        }
        .section-block.section-alt {
            background: var(--brand-blue-pale);
        }
        .section-title-wrap {
            margin-bottom: 26px;
        }
        .section-title-wrap h2 {
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--ink-strong);
            margin-bottom: 8px;
            letter-spacing: 0.5px;
        }
        .section-title-wrap .section-subs {
            font-size: 0.95rem;
            color: var(--ink-muted);
            max-width: 600px;
        }

        /* 按钮 */
        .btn-brand {
            background: var(--brand-blue);
            color: #fff;
            border: none;
            padding: 10px 22px;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 15px;
            transition: all var(--transition-base);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .btn-brand:hover,
        .btn-brand:focus {
            background: var(--brand-blue-dark);
            color: #fff;
            box-shadow: 0 6px 16px rgba(58, 123, 213, 0.35);
            transform: translateY(-1px);
        }
        .btn-brand:active {
            transform: translateY(0);
            box-shadow: none;
        }
        .btn-outline-light {
            background: transparent;
            color: #fff;
            border: 1px solid rgba(255, 255, 255, 0.6);
            padding: 10px 20px;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 14.5px;
            transition: all var(--transition-base);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .btn-outline-light:hover {
            background: rgba(255, 255, 255, 0.15);
            color: #fff;
            border-color: #fff;
        }
        .btn-outline-brand {
            background: transparent;
            color: var(--brand-blue);
            border: 1px solid var(--brand-blue);
            padding: 10px 20px;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 14.5px;
            transition: all var(--transition-base);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .btn-outline-brand:hover {
            background: var(--brand-blue-soft);
            color: var(--brand-blue-dark);
            border-color: var(--brand-blue-dark);
        }
        .btn-sm {
            padding: 7px 16px;
            font-size: 13.5px;
            border-radius: 7px;
        }

        /* 服务概览卡片 */
        .service-overview-card {
            background: #fff;
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            padding: 24px;
            height: 100%;
            border: 1px solid var(--border-light);
            transition: all var(--transition-base);
        }
        .service-overview-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }
        .service-overview-card .icon-wrap {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            background: var(--brand-blue-soft);
            color: var(--brand-blue);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            margin-bottom: 14px;
        }
        .service-overview-card h3 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--ink-strong);
            margin-bottom: 8px;
        }
        .service-overview-card p {
            font-size: 0.92rem;
            color: var(--ink-body);
            margin-bottom: 0;
            line-height: 1.75;
        }

        /* 筛选/排序工具条 */
        .filter-toolbar {
            background: #fff;
            border: 1px solid var(--border-light);
            border-radius: 10px;
            padding: 14px 18px;
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            margin-bottom: 22px;
            box-shadow: var(--shadow-card);
        }
        .filter-toolbar .filter-group {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 8px;
        }
        .filter-toolbar .filter-label {
            font-size: 13.5px;
            font-weight: 600;
            color: var(--ink-strong);
            margin-right: 4px;
        }
        .filter-toolbar .filter-chip {
            padding: 6px 14px;
            border-radius: 20px;
            border: 1px solid var(--border-light);
            background: #fff;
            font-size: 13px;
            color: var(--ink-body);
            font-weight: 500;
            cursor: pointer;
            transition: all var(--transition-base);
            white-space: nowrap;
        }
        .filter-toolbar .filter-chip:hover,
        .filter-toolbar .filter-chip.active {
            background: var(--brand-blue);
            color: #fff;
            border-color: var(--brand-blue);
        }
        .filter-toolbar .sort-select {
            margin-left: auto;
            padding: 7px 14px;
            border-radius: 8px;
            border: 1px solid var(--border-light);
            font-size: 13.5px;
            color: var(--ink-body);
            background: #fff;
            cursor: pointer;
            min-width: 140px;
        }
        .filter-toolbar .sort-select:focus {
            outline: none;
            border-color: var(--brand-blue);
            box-shadow: 0 0 0 3px rgba(58, 123, 213, 0.1);
        }

        /* 服务条目列表 */
        .service-list-item {
            background: #fff;
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-light);
            padding: 18px;
            display: flex;
            gap: 18px;
            margin-bottom: 18px;
            transition: all var(--transition-base);
            cursor: default;
        }
        .service-list-item:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }
        .service-list-item .item-thumb {
            width: 180px;
            min-width: 180px;
            border-radius: 10px;
            overflow: hidden;
            height: 110px;
        }
        .service-list-item .item-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .service-list-item .item-body {
            flex: 1;
        }
        .service-list-item .item-body .item-title {
            font-size: 1.08rem;
            font-weight: 700;
            color: var(--ink-strong);
            margin-bottom: 6px;
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
        }
        .service-list-item .item-body .item-summary {
            font-size: 0.92rem;
            color: var(--ink-body);
            line-height: 1.7;
            margin-bottom: 10px;
        }
        .service-list-item .item-body .item-meta {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
        }
        .service-list-item .item-body .item-meta .badge-tag {
            font-size: 12px;
            font-weight: 600;
            padding: 4px 10px;
            border-radius: 14px;
            background: var(--brand-blue-soft);
            color: var(--brand-blue);
        }
        .service-list-item .item-body .item-meta .badge-tag.tag-green {
            background: #E8F9F0;
            color: #0F8F5F;
        }
        .service-list-item .item-body .item-meta .badge-tag.tag-orange {
            background: #FFF5E6;
            color: #B86E00;
        }
        .service-list-item .item-body .item-meta .meta-text {
            font-size: 12.5px;
            color: var(--ink-muted);
        }

        /* 数据快照 */
        .stats-snapshot {
            background: linear-gradient(135deg, #1E2A3A 0%, #2E3F5A 100%);
            border-radius: var(--radius-card);
            padding: 32px 28px;
            color: #fff;
        }
        .stats-snapshot .stat-item {
            text-align: center;
            padding: 8px 12px;
        }
        .stats-snapshot .stat-number {
            font-size: 2rem;
            font-weight: 800;
            color: #fff;
            line-height: 1.3;
            letter-spacing: 0.5px;
        }
        .stats-snapshot .stat-number .unit-suffix {
            font-size: 0.9rem;
            font-weight: 600;
            color: rgba(255, 255, 255, 0.7);
        }
        .stats-snapshot .stat-label {
            font-size: 13.5px;
            color: rgba(255, 255, 255, 0.7);
            margin-top: 4px;
        }
        .stats-snapshot .stat-divider {
            width: 1px;
            height: 48px;
            background: rgba(255, 255, 255, 0.2);
            margin: 0 auto;
        }

        /* 相关专题推荐 */
        .related-topics .topic-card {
            background: #fff;
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            border: 1px solid var(--border-light);
            transition: all var(--transition-base);
            height: 100%;
        }
        .related-topics .topic-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }
        .related-topics .topic-card .topic-thumb {
            height: 160px;
            overflow: hidden;
        }
        .related-topics .topic-card .topic-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .related-topics .topic-card .topic-card-body {
            padding: 18px;
        }
        .related-topics .topic-card .topic-title {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--ink-strong);
            margin-bottom: 6px;
        }
        .related-topics .topic-card .topic-desc {
            font-size: 0.88rem;
            color: var(--ink-muted);
            line-height: 1.65;
            margin-bottom: 0;
        }

        /* FAQ */
        .faq-section .accordion-item {
            border: 1px solid var(--border-light);
            border-radius: 10px;
            margin-bottom: 12px;
            overflow: hidden;
            box-shadow: var(--shadow-card);
        }
        .faq-section .accordion-button {
            font-weight: 600;
            color: var(--ink-strong);
            font-size: 15px;
            padding: 18px 20px;
            background: #fff;
            border: none;
        }
        .faq-section .accordion-button:not(.collapsed) {
            background: var(--brand-blue-soft);
            color: var(--brand-blue);
            box-shadow: none;
        }
        .faq-section .accordion-button:focus {
            box-shadow: none;
            border: none;
        }
        .faq-section .accordion-body {
            font-size: 14.5px;
            color: var(--ink-body);
            line-height: 1.8;
            padding: 16px 20px 20px;
        }

        /* CTA */
        .cta-section {
            background: linear-gradient(135deg, var(--brand-blue) 0%, var(--brand-blue-dark) 100%);
            border-radius: var(--radius-card);
            padding: 36px 32px;
            color: #fff;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: "";
            position: absolute;
            top: -60px;
            right: -60px;
            width: 250px;
            height: 250px;
            background: rgba(255, 255, 255, 0.08);
            border-radius: 50%;
            pointer-events: none;
        }
        .cta-section h2 {
            font-size: 1.6rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 10px;
        }
        .cta-section p {
            font-size: 1rem;
            color: rgba(255, 255, 255, 0.85);
            max-width: 560px;
            line-height: 1.75;
            margin-bottom: 20px;
        }
        .cta-section .btn-outline-light {
            position: relative;
            z-index: 2;
        }
        .cta-section .btn-outline-light:hover {
            background: #fff;
            color: var(--brand-blue);
            border-color: #fff;
        }

        /* 页脚 */
        .site-footer {
            background: #1E2A3A;
            color: rgba(255, 255, 255, 0.7);
            padding: 48px 0 26px;
            margin-top: 20px;
            font-size: 14px;
        }
        .site-footer .footer-logo {
            font-size: 1.3rem;
            font-weight: 700;
            color: #fff;
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 14px;
        }
        .site-footer .footer-logo i {
            color: var(--brand-blue-light);
            font-size: 1.6rem;
        }
        .site-footer h5 {
            font-size: 15px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
        }
        .site-footer ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .site-footer ul li {
            margin-bottom: 8px;
        }
        .site-footer ul li a {
            color: rgba(255, 255, 255, 0.7);
            transition: color var(--transition-base);
            font-size: 13.5px;
        }
        .site-footer ul li a:hover {
            color: #fff;
        }
        .site-footer .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            margin-top: 32px;
            padding-top: 18px;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 8px;
            font-size: 12.5px;
            color: rgba(255, 255, 255, 0.5);
        }

        /* 响应式 */
        @media (max-width: 991px) {
            .header-search {
                display: none;
            }
            .category-hero .hero-copy {
                padding-right: 0;
                margin-bottom: 20px;
            }
            .category-hero .hero-visual {
                min-height: 200px;
            }
            .category-hero .hero-visual img {
                min-height: 200px;
            }
        }
        @media (max-width: 767px) {
            .top-bar .domain-info span {
                display: none;
            }
            .category-hero h1 {
                font-size: 1.5rem;
            }
            .category-hero .hero-desc {
                font-size: 0.92rem;
            }
            .countdown-timer .time-block {
                min-width: 44px;
                padding: 5px 8px;
            }
            .countdown-timer .time-block .num {
                font-size: 1.1rem;
            }
            .service-list-item {
                flex-direction: column;
                gap: 14px;
            }
            .service-list-item .item-thumb {
                width: 100%;
                min-width: auto;
                height: 160px;
            }
            .filter-toolbar {
                flex-direction: column;
                align-items: flex-start;
                gap: 10px;
            }
            .filter-toolbar .sort-select {
                margin-left: 0;
                width: 100%;
            }
            .filter-toolbar .filter-group {
                width: 100%;
            }
            .stats-snapshot {
                padding: 22px 16px;
            }
            .stats-snapshot .stat-number {
                font-size: 1.5rem;
            }
            .stats-snapshot .stat-divider {
                display: none;
            }
            .section-block {
                padding: 30px 0;
            }
            .cta-section {
                padding: 24px 18px;
            }
            .cta-section h2 {
                font-size: 1.3rem;
            }
        }
        @media (max-width: 520px) {
            .main-nav {
                padding: 8px 0;
            }
            .navbar-brand-custom {
                font-size: 1.2rem;
            }
            .navbar-brand-custom .brand-icon {
                width: 30px;
                height: 30px;
                font-size: 15px;
                border-radius: 8px;
            }
            .category-hero {
                padding: 24px 0 28px;
            }
            .category-hero h1 {
                font-size: 1.3rem;
            }
            .category-hero .hero-tag {
                font-size: 12px;
                padding: 4px 10px;
            }
            .category-hero .hero-visual {
                min-height: 150px;
            }
            .category-hero .hero-visual img {
                min-height: 150px;
            }
            .section-title-wrap h2 {
                font-size: 1.3rem;
            }
            .service-list-item .item-body .item-title {
                font-size: 0.98rem;
            }
            .service-list-item .item-body .item-summary {
                font-size: 0.86rem;
            }
            .related-topics .topic-card .topic-thumb {
                height: 120px;
            }
            .cta-section h2 {
                font-size: 1.15rem;
            }
            .cta-section p {
                font-size: 0.88rem;
            }
        }

/* roulang: framework shim */
/* 覆盖 Bootstrap 等对 a/btn 的全局默认，避免导航出现下划线/蓝链 */
.site-header a,.site-header a:hover,.navbar a,.navbar a:hover,.nav-links a,.nav-links a:hover,header nav a,header nav a:hover{text-decoration:none}
.site-header .btn,.navbar .btn,.nav-cta{text-decoration:none}