/* roulang page: index */
:root {
            --primary: #2E75D8;
            --primary-dark: #245EAD;
            --primary-light: #E8F1FC;
            --primary-soft: #F5FAFF;
            --accent: #F5A623;
            --accent-dark: #D68F1A;
            --bg-white: #FFFFFF;
            --bg-gray: #F7F9FC;
            --bg-blue-gray: #EDF3FB;
            --text-main: #1A1F2E;
            --text-secondary: #5A6270;
            --text-weak: #8A93A3;
            --green: #1FB47A;
            --border-light: #D6E1F0;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --shadow-sm: 0 2px 10px rgba(0, 20, 50, 0.06);
            --shadow-md: 0 6px 18px rgba(46, 117, 216, 0.12);
            --shadow-lg: 0 10px 30px rgba(0, 20, 50, 0.1);
            --font-stack: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', 'Helvetica Neue', Arial, sans-serif;
            --section-spacing: 64px;
            --card-gap: 24px;
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-stack);
            font-size: 15px;
            line-height: 1.75;
            color: var(--text-main);
            background: var(--bg-white);
            min-height: 100vh;
            overflow-x: hidden;
        }

        a {
            color: var(--primary);
            text-decoration: none;
            transition: color 0.2s ease;
        }
        a:hover,
        a:focus {
            color: var(--primary-dark);
        }
        a:focus-visible {
            outline: 3px solid rgba(46, 117, 216, 0.35);
            outline-offset: 2px;
            border-radius: 4px;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-md);
        }

        button,
        input,
        select,
        textarea {
            font-family: var(--font-stack);
            font-size: 14px;
        }
        button:focus-visible,
        input:focus-visible,
        select:focus-visible {
            outline: 3px solid rgba(46, 117, 216, 0.3);
            outline-offset: 1px;
            border-radius: 4px;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 20px;
            padding-right: 20px;
        }

        /* ===== Header / Navigation ===== */
        .site-header {
            background: rgba(255, 255, 255, 0.97);
            border-bottom: 1px solid var(--border-light);
            box-shadow: 0 1px 6px rgba(0, 20, 50, 0.04);
            position: sticky;
            top: 0;
            z-index: 80;
            width: 100%;
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
        }
        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            min-height: 64px;
            gap: 12px 20px;
        }
        .brand-logo {
            font-size: 20px;
            font-weight: 800;
            color: var(--text-main);
            letter-spacing: 0.5px;
            display: flex;
            align-items: center;
            gap: 8px;
            white-space: nowrap;
        }
        .brand-logo .logo-icon {
            width: 32px;
            height: 32px;
            background: var(--primary);
            border-radius: 8px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 16px;
            font-weight: 700;
        }
        .brand-logo:hover {
            color: var(--primary-dark);
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-wrap: wrap;
        }
        .main-nav a {
            color: var(--text-secondary);
            font-size: 14px;
            font-weight: 500;
            padding: 8px 12px;
            border-radius: 6px;
            transition: all 0.2s ease;
            white-space: nowrap;
        }
        .main-nav a:hover {
            color: var(--primary);
            background: var(--primary-soft);
        }
        .main-nav a.active {
            color: var(--primary);
            background: var(--primary-light);
            font-weight: 600;
        }

        .lang-switch {
            display: flex;
            align-items: center;
            gap: 4px;
            background: var(--bg-white);
            border: 1px solid var(--border-light);
            border-radius: 999px;
            padding: 3px 4px;
            margin-left: 6px;
        }
        .lang-switch button {
            background: transparent;
            border: none;
            font-size: 12px;
            color: var(--text-secondary);
            padding: 5px 12px;
            border-radius: 999px;
            cursor: pointer;
            font-weight: 500;
            transition: all 0.2s ease;
            white-space: nowrap;
        }
        .lang-switch button.active {
            background: var(--primary);
            color: #fff;
            font-weight: 600;
        }
        .lang-switch button:hover:not(.active) {
            color: var(--primary);
            background: var(--primary-soft);
        }

        .nav-toggle {
            display: none;
            background: none;
            border: 1px solid var(--border-light);
            border-radius: 8px;
            width: 40px;
            height: 40px;
            font-size: 20px;
            color: var(--text-main);
            cursor: pointer;
            align-items: center;
            justify-content: center;
        }

        /* ===== Hero ===== */
        .hero {
            background: var(--primary-soft);
            background-image: linear-gradient(180deg, #F5FAFF 0%, #E8F1FC 100%);
            padding: 56px 0 64px;
            position: relative;
            overflow: hidden;
        }
        .hero::after {
            content: '';
            position: absolute;
            top: -40px;
            right: -60px;
            width: 260px;
            height: 260px;
            background: rgba(46, 117, 216, 0.06);
            border-radius: 50%;
            pointer-events: none;
        }
        .hero .container {
            position: relative;
            z-index: 2;
        }
        .hero-grid {
            display: grid;
            grid-template-columns: 1.1fr 0.9fr;
            gap: 40px;
            align-items: center;
        }
        .hero-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: #fff;
            border: 1px solid var(--border-light);
            border-radius: 999px;
            padding: 6px 14px;
            font-size: 13px;
            font-weight: 500;
            color: var(--primary);
            margin-bottom: 16px;
        }
        .hero-tag .dot {
            width: 8px;
            height: 8px;
            background: var(--green);
            border-radius: 50%;
            animation: pulse-dot 2s infinite;
        }
        @keyframes pulse-dot {
            0%, 100% { transform: scale(1); opacity: 1; }
            50% { transform: scale(1.4); opacity: 0.7; }
        }
        .hero h1 {
            font-size: 32px;
            font-weight: 800;
            line-height: 1.3;
            color: var(--text-main);
            margin-bottom: 16px;
            letter-spacing: -0.3px;
        }
        .hero-sub {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 24px;
            max-width: 540px;
        }
        .hero-actions {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
            align-items: center;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            font-size: 15px;
            font-weight: 600;
            border-radius: var(--radius-sm);
            padding: 12px 24px;
            cursor: pointer;
            transition: all 0.25s ease;
            border: none;
            text-decoration: none;
            white-space: nowrap;
        }
        .btn-primary {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 2px 8px rgba(46, 117, 216, 0.25);
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            color: #fff;
            box-shadow: 0 4px 14px rgba(46, 117, 216, 0.35);
            transform: translateY(-1px);
        }
        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 1px 4px rgba(46, 117, 216, 0.2);
        }
        .btn-outline {
            background: #fff;
            color: var(--primary);
            border: 1px solid var(--primary);
        }
        .btn-outline:hover {
            background: var(--primary-light);
            color: var(--primary-dark);
            border-color: var(--primary-dark);
            transform: translateY(-1px);
        }
        .btn-outline:active {
            transform: translateY(0);
        }
        .btn-accent {
            background: var(--accent);
            color: #fff;
            box-shadow: 0 2px 8px rgba(245, 166, 35, 0.3);
        }
        .btn-accent:hover {
            background: var(--accent-dark);
            color: #fff;
            box-shadow: 0 4px 14px rgba(245, 166, 35, 0.4);
            transform: translateY(-1px);
        }
        .btn-sm {
            padding: 9px 16px;
            font-size: 13px;
            border-radius: 6px;
        }
        .btn-lg {
            padding: 14px 30px;
            font-size: 16px;
        }

        .hero-data-card {
            background: #fff;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-lg);
            padding: 28px 24px;
            display: flex;
            flex-direction: column;
            gap: 18px;
            border: 1px solid var(--border-light);
        }
        .hero-data-title {
            font-size: 15px;
            font-weight: 700;
            color: var(--text-main);
            display: flex;
            align-items: center;
            justify-content: space-between;
        }
        .hero-data-title .badge-live {
            background: #FF4D4F;
            color: #fff;
            font-size: 11px;
            font-weight: 600;
            padding: 3px 8px;
            border-radius: 4px;
            letter-spacing: 0.5px;
        }
        .hero-match-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 12px 0;
            border-bottom: 1px solid #F0F4F8;
        }
        .hero-match-row:last-child {
            border-bottom: none;
        }
        .hero-match-teams {
            display: flex;
            align-items: center;
            gap: 8px;
            font-weight: 600;
            font-size: 14px;
        }
        .hero-match-teams .vs {
            color: var(--text-weak);
            font-weight: 400;
            font-size: 12px;
        }
        .hero-match-score {
            font-size: 18px;
            font-weight: 800;
            color: var(--text-main);
        }
        .hero-match-score.live {
            color: #FF4D4F;
        }
        .hero-data-footer {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 12px;
            color: var(--text-weak);
        }
        .hero-data-footer .update-time {
            display: flex;
            align-items: center;
            gap: 4px;
        }

        /* ===== Section base ===== */
        .section {
            padding: var(--section-spacing) 0;
        }
        .section-alt {
            background: var(--bg-gray);
        }
        .section-soft {
            background: var(--primary-soft);
        }
        .section-head {
            margin-bottom: 32px;
        }
        .section-head h2 {
            font-size: 24px;
            font-weight: 800;
            color: var(--text-main);
            margin-bottom: 8px;
            letter-spacing: -0.2px;
        }
        .section-head p {
            color: var(--text-secondary);
            font-size: 15px;
            max-width: 680px;
        }
        .section-head.center {
            text-align: center;
        }
        .section-head.center p {
            margin: 0 auto;
        }

        /* ===== Live ticker ===== */
        .ticker-bar {
            background: var(--bg-blue-gray);
            border-top: 1px solid var(--border-light);
            border-bottom: 1px solid var(--border-light);
            padding: 16px 0;
            overflow: hidden;
        }
        .ticker-track {
            display: flex;
            gap: 16px;
            animation: ticker-scroll 30s linear infinite;
            width: max-content;
        }
        @keyframes ticker-scroll {
            0% { transform: translateX(0); }
            100% { transform: translateX(-50%); }
        }
        .ticker-card {
            flex: 0 0 auto;
            background: #fff;
            border-radius: var(--radius-sm);
            box-shadow: var(--shadow-sm);
            padding: 12px 16px;
            min-width: 220px;
            display: flex;
            align-items: center;
            gap: 12px;
            border: 1px solid var(--border-light);
        }
        .ticker-card .sport-icon {
            width: 36px;
            height: 36px;
            border-radius: 8px;
            background: var(--primary-light);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            color: var(--primary);
            flex-shrink: 0;
        }
        .ticker-card .ticker-info {
            flex: 1;
        }
        .ticker-card .ticker-teams {
            font-size: 13px;
            font-weight: 600;
            color: var(--text-main);
        }
        .ticker-card .ticker-meta {
            font-size: 12px;
            color: var(--text-weak);
            display: flex;
            gap: 8px;
            align-items: center;
        }
        .ticker-card .ticker-score {
            font-size: 16px;
            font-weight: 800;
            color: var(--primary);
        }

        /* ===== Feature cards ===== */
        .feature-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--card-gap);
        }
        .feature-card {
            background: #fff;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            padding: 28px 24px;
            box-shadow: var(--shadow-sm);
            transition: all 0.25s ease;
        }
        .feature-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
            border-color: #C5D9F0;
        }
        .feature-icon {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            background: var(--primary-light);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            color: var(--primary);
            margin-bottom: 16px;
        }
        .feature-card h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 8px;
        }
        .feature-card p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 12px;
        }
        .feature-stat {
            font-size: 28px;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: -0.5px;
        }
        .feature-stat span {
            font-size: 14px;
            font-weight: 500;
            color: var(--text-weak);
            margin-left: 4px;
            letter-spacing: 0;
        }

        /* ===== Scenario ===== */
        .scenario-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }
        .scenario-text {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.8;
        }
        .scenario-text h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 12px;
        }
        .scenario-points {
            list-style: none;
            padding: 0;
            margin-top: 16px;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .scenario-points li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            font-size: 14px;
            color: var(--text-secondary);
        }
        .scenario-points li .check {
            color: var(--green);
            font-weight: 700;
            flex-shrink: 0;
            margin-top: 2px;
        }
        .scenario-image {
            background: var(--bg-blue-gray);
            border-radius: var(--radius-lg);
            overflow: hidden;
            min-height: 300px;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
        }
        .scenario-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 0;
        }

        /* ===== Social proof ===== */
        .social-proof {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 24px;
        }
        .proof-logos {
            display: flex;
            gap: 28px;
            flex-wrap: wrap;
            align-items: center;
        }
        .proof-logo {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-weak);
            letter-spacing: 0.5px;
            padding: 8px 16px;
            background: #fff;
            border-radius: 6px;
            border: 1px solid var(--border-light);
            white-space: nowrap;
        }
        .proof-stats {
            display: flex;
            gap: 28px;
            flex-wrap: wrap;
        }
        .proof-stat-item {
            text-align: center;
            min-width: 80px;
        }
        .proof-stat-item .num {
            font-size: 28px;
            font-weight: 800;
            color: var(--text-main);
            letter-spacing: -0.5px;
        }
        .proof-stat-item .label {
            font-size: 12px;
            color: var(--text-weak);
            margin-top: 2px;
        }

        /* ===== Comparison ===== */
        .comparison-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
        }
        .compare-card {
            border-radius: var(--radius-md);
            padding: 28px 24px;
            border: 1px solid var(--border-light);
        }
        .compare-card.ours {
            background: #fff;
            box-shadow: var(--shadow-sm);
        }
        .compare-card.theirs {
            background: var(--bg-gray);
        }
        .compare-card h3 {
            font-size: 17px;
            font-weight: 700;
            margin-bottom: 14px;
            color: var(--text-main);
        }
        .compare-card h3 .badge-compare {
            font-size: 11px;
            font-weight: 600;
            padding: 2px 8px;
            border-radius: 4px;
            margin-left: 6px;
        }
        .compare-card.ours h3 .badge-compare {
            background: var(--primary-light);
            color: var(--primary);
        }
        .compare-card.theirs h3 .badge-compare {
            background: #E5E9F0;
            color: var(--text-weak);
        }
        .compare-list {
            list-style: none;
            padding: 0;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .compare-list li {
            font-size: 14px;
            color: var(--text-secondary);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .compare-list li .check-icon {
            color: var(--green);
            font-weight: 700;
        }
        .compare-list li .cross-icon {
            color: #B0B7C3;
            font-weight: 700;
        }

        /* ===== News rail ===== */
        .news-rail {
            display: flex;
            gap: 16px;
            overflow-x: auto;
            padding-bottom: 12px;
            scroll-snap-type: x mandatory;
            -webkit-overflow-scrolling: touch;
        }
        .news-rail::-webkit-scrollbar {
            height: 4px;
        }
        .news-rail::-webkit-scrollbar-track {
            background: var(--bg-gray);
            border-radius: 4px;
        }
        .news-rail::-webkit-scrollbar-thumb {
            background: var(--border-light);
            border-radius: 4px;
        }
        .news-card {
            flex: 0 0 280px;
            scroll-snap-align: start;
            background: #fff;
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            padding: 20px;
            transition: all 0.25s ease;
        }
        .news-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }
        .news-date {
            font-size: 12px;
            color: var(--text-weak);
            margin-bottom: 8px;
            display: flex;
            align-items: center;
            gap: 4px;
        }
        .news-card h4 {
            font-size: 15px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 8px;
            line-height: 1.45;
        }
        .news-card p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.65;
        }

        /* ===== Sports grid ===== */
        .sports-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .sport-topic-card {
            background: #fff;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            padding: 20px;
            text-align: center;
            box-shadow: var(--shadow-sm);
            transition: all 0.25s ease;
            cursor: pointer;
        }
        .sport-topic-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
            border-color: #C5D9F0;
        }
        .sport-topic-icon {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--primary-light);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            color: var(--primary);
            margin-bottom: 10px;
        }
        .sport-topic-card h4 {
            font-size: 15px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 4px;
        }
        .sport-topic-card .hot-tag {
            display: inline-block;
            font-size: 11px;
            font-weight: 600;
            color: #fff;
            background: var(--accent);
            padding: 2px 8px;
            border-radius: 999px;
            margin-top: 4px;
        }

        /* ===== Column rail ===== */
        .column-rail {
            display: flex;
            gap: 20px;
            overflow-x: auto;
            padding-bottom: 12px;
        }
        .column-rail::-webkit-scrollbar {
            height: 4px;
        }
        .column-rail::-webkit-scrollbar-track {
            background: var(--bg-gray);
            border-radius: 4px;
        }
        .column-rail::-webkit-scrollbar-thumb {
            background: var(--border-light);
            border-radius: 4px;
        }
        .column-card {
            flex: 0 0 320px;
            background: #fff;
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: all 0.25s ease;
        }
        .column-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }
        .column-card .column-img {
            height: 160px;
            background: var(--bg-blue-gray);
            overflow: hidden;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .column-card .column-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 0;
        }
        .column-card .column-body {
            padding: 18px 20px 20px;
        }
        .column-author {
            display: flex;
            align-items: center;
            gap: 8px;
            margin-bottom: 10px;
        }
        .author-avatar {
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: var(--primary-light);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 13px;
            color: var(--primary);
            font-weight: 600;
        }
        .author-name {
            font-size: 13px;
            color: var(--text-secondary);
            font-weight: 500;
        }
        .column-card h4 {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 8px;
            line-height: 1.45;
        }
        .column-card p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.65;
        }

        /* ===== Data table ===== */
        .data-table-wrap {
            background: #fff;
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            overflow: hidden;
        }
        .data-table {
            width: 100%;
            border-collapse: collapse;
            font-size: 14px;
        }
        .data-table thead th {
            background: var(--primary);
            color: #fff;
            font-weight: 600;
            padding: 14px 16px;
            text-align: left;
            font-size: 13px;
            white-space: nowrap;
        }
        .data-table tbody td {
            padding: 12px 16px;
            border-bottom: 1px solid #F0F4F8;
            color: var(--text-main);
        }
        .data-table tbody tr:last-child td {
            border-bottom: none;
        }
        .data-table tbody tr:hover td {
            background: var(--primary-soft);
        }
        .data-table .rank-num {
            font-weight: 800;
            color: var(--primary);
        }
        .data-table .positive {
            color: var(--green);
            font-weight: 600;
        }
        .data-table .negative {
            color: #E5484D;
            font-weight: 600;
        }
        .table-scroll {
            overflow-x: auto;
        }

        /* ===== Training cards ===== */
        .training-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }
        .training-card {
            background: #fff;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            padding: 20px;
            display: flex;
            gap: 16px;
            align-items: center;
            transition: all 0.25s ease;
        }
        .training-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
            border-color: #C5D9F0;
        }
        .training-card .training-img {
            width: 80px;
            height: 80px;
            border-radius: var(--radius-sm);
            overflow: hidden;
            flex-shrink: 0;
            background: var(--bg-blue-gray);
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .training-card .training-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 0;
        }
        .training-card .training-body {
            flex: 1;
        }
        .training-card h4 {
            font-size: 15px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 4px;
        }
        .training-card .training-meta {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
            font-size: 12px;
            color: var(--text-weak);
            margin-bottom: 6px;
        }
        .training-card .training-meta span {
            background: var(--bg-gray);
            padding: 2px 8px;
            border-radius: 4px;
        }
        .training-card p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.6;
        }

        /* ===== Equipment cards ===== */
        .equip-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .equip-card {
            background: #fff;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            transition: all 0.25s ease;
        }
        .equip-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
            border-color: #C5D9F0;
        }
        .equip-card .equip-img {
            height: 160px;
            background: var(--bg-blue-gray);
            overflow: hidden;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .equip-card .equip-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 0;
        }
        .equip-card .equip-body {
            padding: 18px 20px 20px;
        }
        .equip-card h4 {
            font-size: 15px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 6px;
        }
        .equip-rating {
            color: var(--accent);
            font-size: 13px;
            margin-bottom: 8px;
            letter-spacing: 1px;
        }
        .equip-rating .num {
            color: var(--text-secondary);
            font-size: 12px;
            letter-spacing: 0;
            margin-left: 4px;
        }
        .equip-card p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.6;
            margin-bottom: 10px;
        }
        .equip-link {
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 4px;
            cursor: pointer;
        }
        .equip-link:hover {
            color: var(--primary-dark);
        }

        /* ===== Objection cards ===== */
        .objection-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .objection-card {
            background: var(--bg-gray);
            border-radius: var(--radius-md);
            padding: 24px 20px;
            border: 1px solid var(--border-light);
            transition: all 0.25s ease;
        }
        .objection-card:hover {
            box-shadow: var(--shadow-sm);
            transform: translateY(-2px);
            background: #fff;
        }
        .objection-card h4 {
            font-size: 15px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 8px;
        }
        .objection-card p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.65;
        }

        /* ===== Guarantee bar ===== */
        .guarantee-bar {
            background: var(--bg-blue-gray);
            border-radius: var(--radius-md);
            padding: 24px 28px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 16px;
            border: 1px solid var(--border-light);
        }
        .guarantee-item {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            color: var(--text-secondary);
            font-weight: 500;
        }
        .guarantee-item i {
            color: var(--primary);
            font-size: 18px;
        }

        /* ===== Community ===== */
        .community-feed {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }
        .community-post {
            background: #fff;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            padding: 18px 20px;
            box-shadow: var(--shadow-sm);
            display: flex;
            gap: 14px;
            align-items: flex-start;
            transition: all 0.25s ease;
        }
        .community-post:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }
        .community-avatar {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: var(--primary-light);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 15px;
            color: var(--primary);
            font-weight: 600;
            flex-shrink: 0;
        }
        .community-body {
            flex: 1;
        }
        .community-body .user-name {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-main);
        }
        .community-body .post-time {
            font-size: 12px;
            color: var(--text-weak);
            margin-left: 8px;
        }
        .community-body p {
            font-size: 14px;
            color: var(--text-secondary);
            margin-top: 4px;
            line-height: 1.65;
        }
        .community-actions {
            display: flex;
            gap: 16px;
            margin-top: 8px;
            font-size: 13px;
            color: var(--text-weak);
        }
        .community-actions span {
            display: flex;
            align-items: center;
            gap: 4px;
            cursor: pointer;
            transition: color 0.2s ease;
        }
        .community-actions span:hover {
            color: var(--primary);
        }

        /* ===== Brand intro ===== */
        .brand-intro {
            background: var(--bg-gray);
            border-radius: var(--radius-lg);
            padding: 48px 40px;
            border: 1px solid var(--border-light);
        }
        .brand-intro h2 {
            font-size: 24px;
            font-weight: 800;
            color: var(--text-main);
            text-align: center;
            margin-bottom: 20px;
        }
        .brand-intro p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 2;
            max-width: 900px;
            margin: 0 auto 16px;
            text-align: justify;
        }
        .brand-intro p:last-child {
            margin-bottom: 0;
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .faq-item {
            background: #fff;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-sm);
            overflow: hidden;
            transition: all 0.2s ease;
        }
        .faq-item:hover {
            border-color: #B8D0EE;
        }
        .faq-question {
            width: 100%;
            background: none;
            border: none;
            padding: 16px 20px;
            font-size: 15px;
            font-weight: 600;
            color: var(--text-main);
            text-align: left;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
        }
        .faq-question .faq-icon {
            color: var(--primary);
            transition: transform 0.3s ease;
            flex-shrink: 0;
        }
        .faq-item.open .faq-question .faq-icon {
            transform: rotate(180deg);
        }
        .faq-answer {
            padding: 0 20px 16px;
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.75;
            display: none;
        }
        .faq-item.open .faq-answer {
            display: block;
        }

        /* ===== CTA rich ===== */
        .cta-rich {
            background: var(--primary);
            border-radius: var(--radius-lg);
            padding: 48px 40px;
            display: grid;
            grid-template-columns: 1fr auto;
            gap: 30px;
            align-items: center;
            color: #fff;
            box-shadow: 0 10px 30px rgba(46, 117, 216, 0.3);
        }
        .cta-rich h2 {
            font-size: 24px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 10px;
        }
        .cta-rich p {
            font-size: 15px;
            color: rgba(255, 255, 255, 0.85);
            line-height: 1.75;
            margin-bottom: 0;
            max-width: 500px;
        }
        .cta-rich .btn-white {
            background: #fff;
            color: var(--primary);
            font-weight: 700;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.15);
        }
        .cta-rich .btn-white:hover {
            background: var(--primary-soft);
            transform: translateY(-2px);
            box-shadow: 0 6px 18px rgba(0, 0, 0, 0.2);
        }

        /* ===== Footer ===== */
        .site-footer {
            background: #26303E;
            color: rgba(255, 255, 255, 0.7);
            padding: 48px 0 32px;
            margin-top: 32px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 32px;
        }
        .footer-brand h3 {
            color: #fff;
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 10px;
        }
        .footer-brand p {
            font-size: 13px;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.55);
            max-width: 280px;
        }
        .footer-col h4 {
            color: #fff;
            font-size: 14px;
            font-weight: 600;
            margin-bottom: 14px;
        }
        .footer-col a {
            display: block;
            color: rgba(255, 255, 255, 0.6);
            font-size: 13px;
            padding: 4px 0;
            transition: color 0.2s ease;
        }
        .footer-col a:hover {
            color: #fff;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            padding-top: 20px;
            font-size: 12px;
            color: rgba(255, 255, 255, 0.45);
            display: flex;
            flex-wrap: wrap;
            gap: 10px 20px;
            justify-content: space-between;
            align-items: center;
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, 0.5);
            font-size: 12px;
        }
        .footer-bottom a:hover {
            color: #fff;
        }

        /* ===== Bottom sticky CTA ===== */
        .bottom-sticky-cta {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 90;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            box-shadow: 0 -2px 16px rgba(0, 20, 50, 0.1);
            border-top: 1px solid var(--border-light);
            padding: 10px 0;
            display: none;
        }
        .bottom-sticky-cta.visible {
            display: block;
        }
        .bottom-sticky-cta .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            min-height: 48px;
        }
        .bottom-sticky-cta .sticky-text {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-main);
        }
        .bottom-sticky-cta .sticky-text span {
            color: var(--primary);
        }
        .bottom-sticky-cta .btn {
            flex-shrink: 0;
        }

        main {
            padding-bottom: 80px;
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .hero-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .hero h1 {
                font-size: 26px;
            }
            .feature-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .sports-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .equip-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .objection-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .cta-rich {
                grid-template-columns: 1fr;
                text-align: center;
            }
            .cta-rich p {
                margin: 0 auto;
            }
            .cta-rich .btn-white {
                justify-self: center;
            }
            .scenario-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
        }

        @media (max-width: 768px) {
            :root {
                --section-spacing: 48px;
                --card-gap: 16px;
            }
            .site-header .container {
                flex-wrap: nowrap;
            }
            .nav-toggle {
                display: inline-flex;
            }
            .main-nav {
                display: none;
                width: 100%;
                flex-direction: column;
                align-items: stretch;
                padding: 10px 0;
                border-top: 1px solid var(--border-light);
            }
            .main-nav.open {
                display: flex;
            }
            .main-nav a {
                padding: 10px 14px;
                font-size: 14px;
            }
            .lang-switch {
                margin: 8px 0 0;
                justify-content: flex-start;
            }
            .hero {
                padding: 40px 0 48px;
            }
            .hero h1 {
                font-size: 22px;
            }
            .hero-sub {
                font-size: 14px;
            }
            .feature-grid {
                grid-template-columns: 1fr;
            }
            .sports-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }
            .equip-grid {
                grid-template-columns: 1fr;
            }
            .objection-grid {
                grid-template-columns: 1fr;
            }
            .comparison-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .training-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .bottom-sticky-cta .sticky-text {
                font-size: 12px;
            }
            .bottom-sticky-cta .btn {
                padding: 9px 14px;
                font-size: 13px;
            }
            .social-proof {
                flex-direction: column;
                align-items: flex-start;
            }
            .guarantee-bar {
                flex-direction: column;
                align-items: flex-start;
                padding: 20px;
            }
            .brand-intro {
                padding: 32px 20px;
            }
            .cta-rich {
                padding: 36px 24px;
            }
        }

        @media (max-width: 520px) {
            .hero h1 {
                font-size: 20px;
                line-height: 1.35;
            }
            .btn-lg {
                padding: 12px 20px;
                font-size: 14px;
            }
            .hero-actions {
                flex-direction: column;
                align-items: stretch;
            }
            .hero-actions .btn {
                width: 100%;
            }
            .ticker-card {
                min-width: 180px;
                padding: 10px 12px;
            }
            .sports-grid {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
            .sport-topic-card {
                padding: 14px 10px;
            }
            .news-card {
                flex-basis: 240px;
            }
            .column-card {
                flex-basis: 280px;
            }
            .section-head h2 {
                font-size: 20px;
            }
            .bottom-sticky-cta .sticky-text {
                font-size: 11px;
            }
        }

/* roulang page: category2 */
:root {
            --primary: #2E75D8;
            --primary-dark: #245EAD;
            --primary-light: #E8F1FC;
            --primary-soft: #F5FAFF;
            --accent: #F5A623;
            --accent-dark: #D68F1A;
            --bg-white: #FFFFFF;
            --bg-gray: #F7F9FC;
            --bg-blue-gray: #EDF3FB;
            --text-main: #1A1F2E;
            --text-secondary: #5A6270;
            --text-weak: #8A93A3;
            --green: #1FB47A;
            --border-light: #D6E1F0;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --shadow-sm: 0 2px 10px rgba(0, 20, 50, 0.06);
            --shadow-md: 0 6px 18px rgba(46, 117, 216, 0.12);
            --shadow-lg: 0 10px 30px rgba(0, 20, 50, 0.1);
            --font-stack: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', 'Helvetica Neue', Arial, sans-serif;
            --section-spacing: 64px;
            --card-gap: 24px;
        }

        * {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-stack);
            font-size: 15px;
            line-height: 1.75;
            color: var(--text-main);
            background: var(--bg-white);
            min-height: 100vh;
            overflow-x: hidden;
            margin: 0;
            padding: 0;
        }

        a {
            color: var(--primary);
            text-decoration: none;
            transition: color 0.2s ease;
        }

        a:hover,
        a:focus {
            color: var(--primary-dark);
        }

        a:focus-visible {
            outline: 3px solid rgba(46, 117, 216, 0.35);
            outline-offset: 2px;
            border-radius: 4px;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-md);
        }

        button,
        input,
        select,
        textarea {
            font-family: var(--font-stack);
            font-size: 14px;
        }

        button:focus-visible,
        input:focus-visible,
        select:focus-visible {
            outline: 3px solid rgba(46, 117, 216, 0.3);
            outline-offset: 1px;
            border-radius: 4px;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 20px;
            padding-right: 20px;
        }

        /* ===== Header / Navigation ===== */
        .site-header {
            background: rgba(255, 255, 255, 0.97);
            border-bottom: 1px solid var(--border-light);
            box-shadow: 0 1px 6px rgba(0, 20, 50, 0.04);
            position: sticky;
            top: 0;
            z-index: 80;
            width: 100%;
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
        }

        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            min-height: 64px;
            gap: 12px 20px;
        }

        .brand-logo {
            font-size: 20px;
            font-weight: 800;
            color: var(--text-main);
            letter-spacing: 0.5px;
            display: flex;
            align-items: center;
            gap: 8px;
            white-space: nowrap;
        }

        .brand-logo .logo-icon {
            width: 32px;
            height: 32px;
            background: var(--primary);
            border-radius: 8px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 16px;
            font-weight: 700;
        }

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

        .main-nav {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-wrap: wrap;
        }

        .main-nav a {
            color: var(--text-secondary);
            font-size: 14px;
            font-weight: 500;
            padding: 8px 12px;
            border-radius: 6px;
            transition: all 0.2s ease;
            white-space: nowrap;
        }

        .main-nav a:hover {
            color: var(--primary);
            background: var(--primary-soft);
        }

        .main-nav a.active {
            color: var(--primary);
            background: var(--primary-light);
            font-weight: 600;
        }

        .lang-switch {
            display: flex;
            align-items: center;
            gap: 4px;
            margin-left: 8px;
        }

        .lang-switch button {
            background: transparent;
            border: none;
            font-size: 12px;
            color: var(--text-secondary);
            padding: 5px 12px;
            border-radius: 999px;
            cursor: pointer;
            font-weight: 500;
            transition: all 0.2s ease;
            white-space: nowrap;
        }

        .lang-switch button.active {
            background: var(--primary);
            color: #fff;
            font-weight: 600;
        }

        .lang-switch button:hover:not(.active) {
            color: var(--primary);
            background: var(--primary-soft);
        }

        .nav-toggle {
            display: none;
            background: none;
            border: 1px solid var(--border-light);
            border-radius: 8px;
            width: 40px;
            height: 40px;
            font-size: 20px;
            color: var(--text-main);
            cursor: pointer;
            align-items: center;
            justify-content: center;
            transition: all 0.2s ease;
        }

        .nav-toggle:hover {
            background: var(--primary-soft);
            border-color: var(--primary);
        }

        /* ===== Breadcrumb ===== */
        .breadcrumb-section {
            background: var(--bg-gray);
            padding: 16px 0;
            border-bottom: 1px solid var(--border-light);
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 6px;
            font-size: 13px;
            color: var(--text-weak);
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .breadcrumb li {
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .breadcrumb li:not(:last-child)::after {
            content: '/';
            color: var(--text-weak);
            margin: 0 4px;
        }

        .breadcrumb a {
            color: var(--text-secondary);
            font-weight: 500;
        }

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

        .breadcrumb .current {
            color: var(--text-main);
            font-weight: 600;
        }

        /* ===== Category Intro ===== */
        .category-intro {
            background: linear-gradient(180deg, var(--primary-soft) 0%, #fff 100%);
            padding: 32px 0 40px;
            border-bottom: 1px solid var(--border-light);
        }

        .category-intro .container {
            display: grid;
            grid-template-columns: 1fr;
            gap: 16px;
        }

        .category-intro h1 {
            font-size: 30px;
            font-weight: 800;
            color: var(--text-main);
            margin: 0 0 8px;
            letter-spacing: 0.5px;
        }

        .category-intro .intro-desc {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.8;
            max-width: 860px;
            margin: 0;
        }

        /* ===== Section Base ===== */
        section {
            padding: var(--section-spacing) 0;
        }

        .section-header {
            display: flex;
            align-items: baseline;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px 20px;
            margin-bottom: 28px;
        }

        .section-header h2 {
            font-size: 22px;
            font-weight: 700;
            color: var(--text-main);
            margin: 0;
            letter-spacing: 0.3px;
        }

        .section-header .section-sub {
            font-size: 14px;
            color: var(--text-weak);
            margin: 0;
        }

        /* ===== Ranking Cards Grid ===== */
        .ranking-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--card-gap);
        }

        .ranking-card {
            background: var(--bg-white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            transition: all 0.3s ease;
            display: flex;
            flex-direction: column;
        }

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

        .ranking-card .card-img {
            position: relative;
            height: 180px;
            overflow: hidden;
            background: var(--bg-blue-gray);
        }

        .ranking-card .card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 0;
        }

        .ranking-card .card-body {
            padding: 16px 18px 18px;
            display: flex;
            flex-direction: column;
            gap: 8px;
            flex: 1;
        }

        .ranking-card .card-tag {
            display: inline-block;
            font-size: 12px;
            font-weight: 600;
            color: var(--primary);
            background: var(--primary-light);
            padding: 3px 10px;
            border-radius: 999px;
            align-self: flex-start;
        }

        .ranking-card .card-tag.hot {
            color: #fff;
            background: var(--accent);
        }

        .ranking-card h3 {
            font-size: 17px;
            font-weight: 700;
            color: var(--text-main);
            margin: 4px 0 2px;
            line-height: 1.5;
        }

        .ranking-card .card-excerpt {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin: 0;
            flex: 1;
        }

        .ranking-card .card-meta {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 10px;
            font-size: 12px;
            color: var(--text-weak);
            padding-top: 10px;
            border-top: 1px solid var(--bg-gray);
        }

        .ranking-card .card-meta i {
            color: var(--primary);
            font-size: 12px;
            margin-right: 3px;
        }

        /* ===== Hot Recommend Horizontal ===== */
        .hot-scroll-wrapper {
            overflow-x: auto;
            overflow-y: hidden;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: thin;
            scrollbar-color: var(--border-light) transparent;
            padding-bottom: 8px;
            margin: 0 -4px;
        }

        .hot-scroll-wrapper::-webkit-scrollbar {
            height: 6px;
        }

        .hot-scroll-wrapper::-webkit-scrollbar-track {
            background: transparent;
        }

        .hot-scroll-wrapper::-webkit-scrollbar-thumb {
            background: var(--border-light);
            border-radius: 12px;
        }

        .hot-scroll {
            display: flex;
            gap: 16px;
            padding: 4px;
            min-width: max-content;
        }

        .hot-mini-card {
            background: var(--bg-white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            width: 220px;
            flex-shrink: 0;
            transition: all 0.3s ease;
        }

        .hot-mini-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }

        .hot-mini-card .mini-img {
            height: 110px;
            background: var(--bg-blue-gray);
            overflow: hidden;
        }

        .hot-mini-card .mini-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 0;
        }

        .hot-mini-card .mini-body {
            padding: 12px 14px;
            display: flex;
            flex-direction: column;
            gap: 6px;
        }

        .hot-mini-card .mini-title {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-main);
            line-height: 1.5;
            margin: 0;
        }

        .hot-mini-card .mini-meta {
            font-size: 11px;
            color: var(--text-weak);
            display: flex;
            align-items: center;
            gap: 6px;
        }

        /* ===== Stats Bar ===== */
        .stats-bar-section {
            background: var(--bg-gray);
            padding: 36px 0;
            border-top: 1px solid var(--border-light);
            border-bottom: 1px solid var(--border-light);
        }

        .stats-bar {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 18px;
        }

        .stat-item {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            padding: 18px 16px;
            text-align: center;
            box-shadow: var(--shadow-sm);
            transition: all 0.3s ease;
        }

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

        .stat-item .stat-num {
            font-size: 26px;
            font-weight: 800;
            color: var(--primary);
            display: block;
            line-height: 1.3;
        }

        .stat-item .stat-num.green {
            color: var(--green);
        }

        .stat-item .stat-label {
            font-size: 12px;
            color: var(--text-secondary);
            margin-top: 4px;
            display: block;
        }

        /* ===== Subscribe Bar ===== */
        .subscribe-section {
            background: var(--primary-soft);
            padding: 44px 0;
            border-top: 1px solid var(--border-light);
            border-bottom: 1px solid var(--border-light);
        }

        .subscribe-bar {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 18px 24px;
        }

        .subscribe-text h2 {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-main);
            margin: 0 0 6px;
        }

        .subscribe-text p {
            font-size: 14px;
            color: var(--text-secondary);
            margin: 0;
            max-width: 480px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 24px;
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
            border: none;
            white-space: nowrap;
            letter-spacing: 0.3px;
        }

        .btn-primary {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 2px 8px rgba(46, 117, 216, 0.25);
        }

        .btn-primary:hover {
            background: var(--primary-dark);
            color: #fff;
            box-shadow: 0 4px 16px rgba(46, 117, 216, 0.35);
        }

        .btn-outline {
            background: #fff;
            color: var(--primary);
            border: 1px solid var(--primary);
        }

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

        /* ===== SEO Support Text ===== */
        .seo-text-section {
            background: #fff;
            padding: 48px 0;
        }

        .seo-text {
            font-size: 15px;
            line-height: 1.9;
            color: var(--text-secondary);
            max-width: 900px;
            margin: 0 auto;
        }

        .seo-text p {
            margin-bottom: 16px;
        }

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

        /* ===== FAQ ===== */
        .faq-section {
            background: var(--bg-gray);
            padding: var(--section-spacing) 0;
            border-top: 1px solid var(--border-light);
        }

        .faq-list {
            max-width: 860px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .faq-item {
            background: var(--bg-white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: all 0.3s ease;
        }

        .faq-item:hover {
            box-shadow: var(--shadow-sm);
        }

        .faq-question {
            width: 100%;
            background: none;
            border: none;
            padding: 18px 22px;
            font-size: 15px;
            font-weight: 600;
            color: var(--text-main);
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            text-align: left;
            line-height: 1.6;
        }

        .faq-question .fa-chevron-down {
            font-size: 13px;
            color: var(--text-weak);
            transition: transform 0.3s ease;
            flex-shrink: 0;
        }

        .faq-item.open .faq-question .fa-chevron-down {
            transform: rotate(180deg);
            color: var(--primary);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
            padding: 0 22px;
        }

        .faq-item.open .faq-answer {
            max-height: 400px;
            padding: 0 22px 20px;
        }

        .faq-answer p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin: 0;
        }

        /* ===== Pagination ===== */
        .pagination-section {
            padding: 36px 0 48px;
            background: #fff;
        }

        .pagination {
            display: flex;
            align-items: center;
            justify-content: center;
            flex-wrap: wrap;
            gap: 8px;
        }

        .pagination a,
        .pagination span.page-current {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-width: 40px;
            height: 40px;
            padding: 0 12px;
            border-radius: var(--radius-sm);
            font-size: 14px;
            font-weight: 500;
            transition: all 0.2s ease;
            border: 1px solid var(--border-light);
            background: #fff;
            color: var(--text-secondary);
        }

        .pagination a:hover {
            background: var(--primary-soft);
            border-color: var(--primary);
            color: var(--primary);
        }

        .pagination span.page-current {
            background: var(--primary);
            border-color: var(--primary);
            color: #fff;
            font-weight: 600;
        }

        .pagination .page-dots {
            border: none;
            background: none;
            color: var(--text-weak);
            min-width: auto;
            padding: 0 4px;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: #26303E;
            color: #c8d0da;
            padding: 48px 0 24px;
            font-size: 14px;
        }

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

        .site-footer .footer-brand h3 {
            color: #fff;
            font-size: 20px;
            font-weight: 800;
            margin: 0 0 10px;
        }

        .site-footer .footer-brand p {
            font-size: 13px;
            line-height: 1.7;
            color: #aeb6c2;
            margin: 0;
        }

        .site-footer .footer-col h4 {
            color: #fff;
            font-size: 14px;
            font-weight: 700;
            margin: 0 0 12px;
            letter-spacing: 0.5px;
        }

        .site-footer .footer-col a {
            display: block;
            color: #c8d0da;
            font-size: 13px;
            margin-bottom: 8px;
            transition: color 0.2s ease;
        }

        .site-footer .footer-col a:hover {
            color: #fff;
        }

        .site-footer .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 12px 20px;
            font-size: 12px;
            color: #8a93a3;
        }

        .site-footer .footer-bottom a {
            color: #aeb6c2;
        }

        .site-footer .footer-bottom a:hover {
            color: #fff;
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .ranking-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .stats-bar {
                grid-template-columns: repeat(2, 1fr);
            }

            .site-footer .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
        }

        @media (max-width: 768px) {
            :root {
                --section-spacing: 40px;
                --card-gap: 14px;
            }

            .nav-toggle {
                display: inline-flex;
            }

            .main-nav {
                display: none;
                width: 100%;
                flex-direction: column;
                align-items: stretch;
                padding: 12px 0 16px;
                gap: 4px;
            }

            .main-nav.open {
                display: flex;
            }

            .main-nav a {
                padding: 10px 14px;
                font-size: 15px;
            }

            .lang-switch {
                margin-left: 0;
                padding: 8px 0 0;
                border-top: 1px solid var(--border-light);
                justify-content: flex-start;
            }

            .category-intro h1 {
                font-size: 24px;
            }

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

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

            .hot-mini-card {
                width: 190px;
            }

            .subscribe-bar {
                flex-direction: column;
                align-items: flex-start;
                text-align: left;
            }

            .site-footer .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }

            .site-footer .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
                line-height: 1.8;
            }

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

        @media (max-width: 520px) {
            .stats-bar {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }

            .stat-item .stat-num {
                font-size: 20px;
            }

            .section-header h2 {
                font-size: 19px;
            }

            .category-intro h1 {
                font-size: 21px;
            }

            .breadcrumb {
                font-size: 12px;
            }

            .ranking-card .card-body {
                padding: 12px 14px 14px;
            }

            .ranking-card h3 {
                font-size: 15px;
            }

            .section-header {
                margin-bottom: 18px;
            }
        }

/* roulang page: category1 */
:root {
            --primary: #2E75D8;
            --primary-dark: #245EAD;
            --primary-light: #E8F1FC;
            --primary-soft: #F5FAFF;
            --accent: #F5A623;
            --accent-dark: #D68F1A;
            --bg-white: #FFFFFF;
            --bg-gray: #F7F9FC;
            --bg-blue-gray: #EDF3FB;
            --text-main: #1A1F2E;
            --text-secondary: #5A6270;
            --text-weak: #8A93A3;
            --green: #1FB47A;
            --border-light: #D6E1F0;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --shadow-sm: 0 2px 10px rgba(0, 20, 50, 0.06);
            --shadow-md: 0 6px 18px rgba(46, 117, 216, 0.12);
            --shadow-lg: 0 10px 30px rgba(0, 20, 50, 0.1);
            --font-stack: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', 'Helvetica Neue', Arial, sans-serif;
            --section-spacing: 48px;
            --card-gap: 16px;
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-stack);
            font-size: 15px;
            line-height: 1.75;
            color: var(--text-main);
            background: var(--bg-white);
            min-height: 100vh;
            overflow-x: hidden;
            margin: 0;
            padding: 0;
        }

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

        a {
            color: var(--primary);
            text-decoration: none;
            transition: color 0.2s ease;
        }

        a:hover,
        a:focus {
            color: var(--primary-dark);
        }

        a:focus-visible {
            outline: 3px solid rgba(46, 117, 216, 0.35);
            outline-offset: 2px;
            border-radius: 4px;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-md);
        }

        button,
        input,
        select,
        textarea {
            font-family: var(--font-stack);
            font-size: 14px;
        }

        button:focus-visible,
        input:focus-visible,
        select:focus-visible,
        textarea:focus-visible {
            outline: 3px solid rgba(46, 117, 216, 0.3);
            outline-offset: 1px;
            border-radius: 4px;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 20px;
            padding-right: 20px;
        }

        .section {
            padding: var(--section-spacing) 0;
        }

        .section-alt {
            background: var(--bg-gray);
        }

        .section-blue-gray {
            background: var(--bg-blue-gray);
        }

        .section-title {
            font-size: 24px;
            font-weight: 700;
            color: var(--text-main);
            margin: 0 0 24px 0;
            letter-spacing: 0.3px;
            line-height: 1.4;
        }

        .section-subtitle {
            font-size: 15px;
            color: var(--text-secondary);
            margin: -16px 0 28px 0;
            line-height: 1.7;
        }

        /* ===== Header / Navigation ===== */
        .site-header {
            background: rgba(255, 255, 255, 0.97);
            border-bottom: 1px solid var(--border-light);
            box-shadow: 0 1px 6px rgba(0, 20, 50, 0.04);
            position: sticky;
            top: 0;
            z-index: 80;
            width: 100%;
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
        }

        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            min-height: 64px;
            gap: 12px 20px;
        }

        .brand-logo {
            font-size: 20px;
            font-weight: 800;
            color: var(--text-main);
            letter-spacing: 0.5px;
            display: flex;
            align-items: center;
            gap: 8px;
            white-space: nowrap;
        }

        .brand-logo .logo-icon {
            width: 32px;
            height: 32px;
            background: var(--primary);
            border-radius: 8px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 16px;
            font-weight: 700;
        }

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

        .main-nav {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-wrap: wrap;
        }

        .main-nav a {
            color: var(--text-secondary);
            font-size: 14px;
            font-weight: 500;
            padding: 8px 12px;
            border-radius: 6px;
            transition: all 0.2s ease;
            white-space: nowrap;
        }

        .main-nav a:hover {
            color: var(--primary);
            background: var(--primary-soft);
        }

        .main-nav a.active {
            color: var(--primary);
            background: var(--primary-light);
            font-weight: 600;
        }

        .lang-switch {
            display: flex;
            align-items: center;
            gap: 4px;
            margin-left: 8px;
        }

        .lang-switch button {
            background: transparent;
            border: none;
            font-size: 12px;
            color: var(--text-secondary);
            padding: 5px 12px;
            border-radius: 999px;
            cursor: pointer;
            font-weight: 500;
            transition: all 0.2s ease;
            white-space: nowrap;
        }

        .lang-switch button.active {
            background: var(--primary);
            color: #fff;
            font-weight: 600;
        }

        .lang-switch button:hover:not(.active) {
            color: var(--primary);
            background: var(--primary-soft);
        }

        .nav-toggle {
            display: none;
            background: none;
            border: 1px solid var(--border-light);
            border-radius: 8px;
            width: 40px;
            height: 40px;
            font-size: 20px;
            color: var(--text-main);
            cursor: pointer;
            align-items: center;
            justify-content: center;
        }

        /* ===== Breadcrumb ===== */
        .breadcrumb {
            padding: 20px 0 0 0;
            font-size: 13px;
            color: var(--text-weak);
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
        }

        .breadcrumb a {
            color: var(--text-secondary);
        }

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

        .breadcrumb .sep {
            color: var(--text-weak);
            font-size: 11px;
        }

        .breadcrumb .current {
            color: var(--primary);
            font-weight: 600;
        }

        /* ===== Category Header ===== */
        .category-header {
            padding: 28px 0 16px 0;
        }

        .category-header h1 {
            font-size: 30px;
            font-weight: 800;
            color: var(--text-main);
            margin: 0 0 12px 0;
            letter-spacing: 0.3px;
            line-height: 1.4;
        }

        .category-header .category-desc {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.8;
            max-width: 820px;
            margin: 0;
        }

        /* ===== Category List ===== */
        .category-list-section {
            padding: 28px 0 40px 0;
        }

        .category-list-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
            gap: 20px;
        }

        .list-card {
            background: var(--bg-white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            padding: 18px 18px 16px;
            transition: all 0.25s ease;
            box-shadow: var(--shadow-sm);
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .list-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
            border-color: rgba(46, 117, 216, 0.3);
        }

        .list-card-top {
            display: flex;
            align-items: flex-start;
            gap: 14px;
        }

        .list-card-thumb {
            flex-shrink: 0;
            width: 72px;
            height: 58px;
            border-radius: var(--radius-sm);
            overflow: hidden;
            background: var(--bg-blue-gray);
        }

        .list-card-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: var(--radius-sm);
        }

        .list-card-info {
            flex: 1;
            min-width: 0;
        }

        .list-card-title {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-main);
            margin: 0 0 6px 0;
            line-height: 1.5;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .list-card-summary {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin: 0;
        }

        .list-card-meta {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-wrap: wrap;
            font-size: 12px;
            color: var(--text-weak);
        }

        .list-card-meta .tag {
            background: var(--primary-light);
            color: var(--primary);
            padding: 2px 10px;
            border-radius: 4px;
            font-weight: 500;
            font-size: 11px;
            white-space: nowrap;
        }

        .list-card-meta .date {
            white-space: nowrap;
        }

        .list-card-meta .source {
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        /* ===== Hot Recommend ===== */
        .hot-recommend-section {
            padding: 32px 0 40px 0;
            background: var(--bg-white);
        }

        .hot-recommend-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
            gap: 16px;
        }

        .hot-card {
            background: var(--bg-white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            padding: 16px;
            transition: all 0.25s ease;
            cursor: default;
            box-shadow: var(--shadow-sm);
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .hot-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
            border-color: rgba(46, 117, 216, 0.3);
        }

        .hot-card .hot-icon {
            width: 40px;
            height: 40px;
            border-radius: 10px;
            background: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
        }

        .hot-card h3 {
            font-size: 15px;
            font-weight: 700;
            color: var(--text-main);
            margin: 0;
            line-height: 1.4;
        }

        .hot-card p {
            font-size: 12px;
            color: var(--text-secondary);
            margin: 0;
            line-height: 1.6;
        }

        .hot-card .hot-tag {
            align-self: flex-start;
            background: rgba(245, 166, 35, 0.12);
            color: var(--accent-dark);
            font-size: 11px;
            font-weight: 600;
            padding: 3px 10px;
            border-radius: 4px;
        }

        /* ===== Data Snapshot ===== */
        .data-snapshot-section {
            padding: 32px 0;
            background: var(--bg-blue-gray);
        }

        .data-snapshot-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
            gap: 16px;
        }

        .snapshot-item {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            padding: 18px 16px;
            text-align: center;
            box-shadow: var(--shadow-sm);
            transition: box-shadow 0.25s ease;
        }

        .snapshot-item:hover {
            box-shadow: var(--shadow-md);
        }

        .snapshot-number {
            font-size: 28px;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
            letter-spacing: 0.5px;
        }

        .snapshot-label {
            font-size: 13px;
            color: var(--text-secondary);
            margin-top: 6px;
        }

        /* ===== Subscribe Bar ===== */
        .subscribe-section {
            padding: 36px 0;
            background: var(--primary-soft);
        }

        .subscribe-bar {
            display: flex;
            align-items: center;
            gap: 20px;
            flex-wrap: wrap;
            background: var(--bg-white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            padding: 24px 28px;
            box-shadow: var(--shadow-sm);
        }

        .subscribe-text {
            flex: 1;
            min-width: 220px;
        }

        .subscribe-text h2 {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-main);
            margin: 0 0 6px 0;
        }

        .subscribe-text p {
            font-size: 13px;
            color: var(--text-secondary);
            margin: 0;
            line-height: 1.6;
        }

        .subscribe-form {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
            align-items: center;
        }

        .subscribe-form input[type="email"] {
            padding: 11px 16px;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-sm);
            font-size: 14px;
            min-width: 220px;
            max-width: 280px;
            background: var(--bg-white);
            color: var(--text-main);
            transition: border-color 0.2s ease, box-shadow 0.2s ease;
        }

        .subscribe-form input[type="email"]:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(46, 117, 216, 0.18);
            outline: none;
        }

        .subscribe-btn {
            background: var(--primary);
            color: #fff;
            border: none;
            padding: 11px 24px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 14px;
            cursor: pointer;
            transition: background 0.2s ease, transform 0.15s ease;
            white-space: nowrap;
        }

        .subscribe-btn:hover {
            background: var(--primary-dark);
            transform: translateY(-1px);
        }

        .subscribe-btn:active {
            transform: translateY(0);
        }

        /* ===== SEO Text Block ===== */
        .seo-text-section {
            padding: 36px 0;
            background: var(--bg-white);
        }

        .seo-text-block {
            max-width: 860px;
            margin: 0 auto;
            font-size: 14px;
            line-height: 1.9;
            color: var(--text-secondary);
        }

        .seo-text-block p {
            margin-bottom: 16px;
        }

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

        /* ===== FAQ Section ===== */
        .faq-section {
            padding: 36px 0 48px 0;
            background: var(--bg-gray);
        }

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

        .faq-item {
            background: var(--bg-white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            margin-bottom: 12px;
            overflow: hidden;
            transition: box-shadow 0.25s ease;
        }

        .faq-item:hover {
            box-shadow: var(--shadow-sm);
        }

        .faq-question {
            padding: 16px 20px;
            font-size: 15px;
            font-weight: 700;
            color: var(--text-main);
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            background: var(--bg-white);
            border: none;
            width: 100%;
            text-align: left;
            transition: background 0.2s ease;
        }

        .faq-question:hover {
            background: var(--primary-soft);
        }

        .faq-question .faq-icon {
            flex-shrink: 0;
            color: var(--primary);
            font-size: 14px;
            transition: transform 0.3s ease;
        }

        .faq-item.open .faq-icon {
            transform: rotate(180deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
            padding: 0 20px;
        }

        .faq-item.open .faq-answer {
            max-height: 400px;
            padding: 0 20px 18px;
        }

        .faq-answer p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin: 0;
        }

        /* ===== Related Categories ===== */
        .related-cats-section {
            padding: 32px 0;
            background: var(--bg-white);
        }

        .related-cats {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }

        .related-cat-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--bg-white);
            border: 1px solid var(--border-light);
            color: var(--text-secondary);
            padding: 8px 16px;
            border-radius: var(--radius-sm);
            font-size: 13px;
            font-weight: 500;
            transition: all 0.2s ease;
        }

        .related-cat-link:hover {
            color: var(--primary);
            border-color: var(--primary);
            background: var(--primary-soft);
        }

        .related-cat-link i {
            font-size: 12px;
        }

        /* ===== Pagination ===== */
        .pagination-section {
            padding: 24px 0 40px 0;
            text-align: center;
            background: var(--bg-white);
        }

        .load-more-btn {
            background: var(--primary-light);
            color: var(--primary);
            border: 1px solid rgba(46, 117, 216, 0.3);
            padding: 11px 32px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 14px;
            cursor: pointer;
            transition: all 0.2s ease;
        }

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

        .load-more-btn:active {
            transform: translateY(1px);
        }

        /* ===== Footer ===== */
        .site-footer {
            background: #26303E;
            color: #fff;
            padding: 48px 0 28px 0;
            margin-top: 0;
        }

        .site-footer .container {
            max-width: 1200px;
        }

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

        .footer-brand h3 {
            font-size: 20px;
            font-weight: 800;
            margin: 0 0 12px 0;
            color: #fff;
        }

        .footer-brand p {
            font-size: 13px;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.7);
            max-width: 280px;
            margin: 0;
        }

        .footer-col h4 {
            font-size: 14px;
            font-weight: 700;
            margin: 0 0 14px 0;
            color: #fff;
            letter-spacing: 0.3px;
        }

        .footer-col a {
            display: block;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.7);
            padding: 4px 0;
            transition: color 0.2s ease;
        }

        .footer-col a:hover {
            color: #fff;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.15);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            gap: 12px 24px;
            align-items: center;
            font-size: 12px;
            color: rgba(255, 255, 255, 0.6);
        }

        .footer-bottom a {
            color: rgba(255, 255, 255, 0.7);
        }

        .footer-bottom a:hover {
            color: #fff;
        }

        /* ===== Responsive ===== */
        @media screen and (max-width: 1024px) {
            .category-list-grid {
                grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            }
            .hot-recommend-grid {
                grid-template-columns: repeat(auto-fill, minmax(170px, 1fr));
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
        }

        @media screen and (max-width: 768px) {
            :root {
                --section-spacing: 36px;
                --card-gap: 12px;
            }

            .nav-toggle {
                display: flex;
            }

            .main-nav {
                display: none;
                width: 100%;
                flex-direction: column;
                align-items: stretch;
                gap: 4px;
                padding: 12px 0 16px 0;
                border-top: 1px solid var(--border-light);
                margin-top: 4px;
            }

            .main-nav.open {
                display: flex;
            }

            .main-nav a {
                padding: 10px 14px;
                font-size: 14px;
            }

            .lang-switch {
                margin-left: 0;
                margin-top: 8px;
                justify-content: center;
            }

            .category-header h1 {
                font-size: 24px;
            }

            .category-list-grid {
                grid-template-columns: 1fr;
            }

            .hot-recommend-grid {
                grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
            }

            .data-snapshot-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .subscribe-bar {
                flex-direction: column;
                align-items: stretch;
                text-align: center;
                padding: 20px;
            }

            .subscribe-form {
                justify-content: center;
            }

            .subscribe-form input[type="email"] {
                min-width: 100%;
                max-width: 100%;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }

            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
        }

        @media screen and (max-width: 520px) {
            .container {
                padding-left: 14px;
                padding-right: 14px;
            }

            .category-header h1 {
                font-size: 21px;
            }

            .list-card-top {
                flex-direction: column;
                gap: 10px;
            }

            .list-card-thumb {
                width: 100%;
                height: 140px;
            }

            .hot-recommend-grid {
                grid-template-columns: 1fr;
            }

            .data-snapshot-grid {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }

            .snapshot-number {
                font-size: 22px;
            }

            .section-title {
                font-size: 20px;
            }

            .subscribe-form input[type="email"] {
                min-width: 100%;
            }

            .subscribe-btn {
                width: 100%;
            }
        }

/* roulang page: category4 */
:root {
            --primary: #2E75D8;
            --primary-dark: #245EAD;
            --primary-light: #E8F1FC;
            --primary-soft: #F5FAFF;
            --accent: #F5A623;
            --accent-dark: #D68F1A;
            --bg-white: #FFFFFF;
            --bg-gray: #F7F9FC;
            --bg-blue-gray: #EDF3FB;
            --text-main: #1A1F2E;
            --text-secondary: #5A6270;
            --text-weak: #8A93A3;
            --green: #1FB47A;
            --border-light: #D6E1F0;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --shadow-sm: 0 2px 10px rgba(0, 20, 50, 0.06);
            --shadow-md: 0 6px 18px rgba(46, 117, 216, 0.12);
            --shadow-lg: 0 10px 30px rgba(0, 20, 50, 0.1);
            --font-stack: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', 'Helvetica Neue', Arial, sans-serif;
            --section-spacing: 48px;
            --card-gap: 16px;
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-stack);
            font-size: 15px;
            line-height: 1.75;
            color: var(--text-main);
            background: var(--bg-white);
            min-height: 100vh;
            overflow-x: hidden;
        }

        a {
            color: var(--primary);
            text-decoration: none;
            transition: color 0.2s ease;
        }

        a:hover,
        a:focus {
            color: var(--primary-dark);
        }

        a:focus-visible {
            outline: 3px solid rgba(46, 117, 216, 0.35);
            outline-offset: 2px;
            border-radius: 4px;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-md);
        }

        button,
        input,
        select,
        textarea {
            font-family: var(--font-stack);
            font-size: 14px;
        }

        button:focus-visible,
        input:focus-visible,
        select:focus-visible {
            outline: 3px solid rgba(46, 117, 216, 0.3);
            outline-offset: 1px;
            border-radius: 4px;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 20px;
            padding-right: 20px;
        }

        /* ===== Header / Navigation ===== */
        .site-header {
            background: rgba(255, 255, 255, 0.97);
            border-bottom: 1px solid var(--border-light);
            box-shadow: 0 1px 6px rgba(0, 20, 50, 0.04);
            position: sticky;
            top: 0;
            z-index: 80;
            width: 100%;
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
        }

        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            min-height: 64px;
            gap: 12px 20px;
        }

        .brand-logo {
            font-size: 20px;
            font-weight: 800;
            color: var(--text-main);
            letter-spacing: 0.5px;
            display: flex;
            align-items: center;
            gap: 8px;
            white-space: nowrap;
        }

        .brand-logo .logo-icon {
            width: 32px;
            height: 32px;
            background: var(--primary);
            border-radius: 8px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 16px;
            font-weight: 700;
        }

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

        .main-nav {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-wrap: wrap;
        }

        .main-nav a {
            color: var(--text-secondary);
            font-size: 14px;
            font-weight: 500;
            padding: 8px 12px;
            border-radius: 6px;
            transition: all 0.2s ease;
            white-space: nowrap;
        }

        .main-nav a:hover {
            color: var(--primary);
            background: var(--primary-soft);
        }

        .main-nav a.active {
            color: var(--primary);
            background: var(--primary-light);
            font-weight: 600;
        }

        .lang-switch button {
            background: transparent;
            border: none;
            font-size: 12px;
            color: var(--text-secondary);
            padding: 5px 12px;
            border-radius: 999px;
            cursor: pointer;
            font-weight: 500;
            transition: all 0.2s ease;
            white-space: nowrap;
        }

        .lang-switch button.active {
            background: var(--primary);
            color: #fff;
            font-weight: 600;
        }

        .lang-switch button:hover:not(.active) {
            color: var(--primary);
            background: var(--primary-soft);
        }

        .nav-toggle {
            display: none;
            background: none;
            border: 1px solid var(--border-light);
            border-radius: 8px;
            width: 40px;
            height: 40px;
            font-size: 20px;
            color: var(--text-main);
            cursor: pointer;
            align-items: center;
            justify-content: center;
        }

        /* ===== Breadcrumb ===== */
        .breadcrumb-bar {
            background: var(--bg-gray);
            border-bottom: 1px solid var(--border-light);
            padding: 10px 0;
        }

        .breadcrumb {
            list-style: none;
            margin: 0;
            padding: 0;
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 4px;
            font-size: 13px;
            color: var(--text-weak);
        }

        .breadcrumb li {
            display: flex;
            align-items: center;
            gap: 4px;
        }

        .breadcrumb li+li::before {
            content: '/';
            color: var(--text-weak);
            margin-right: 4px;
        }

        .breadcrumb a {
            color: var(--text-secondary);
            font-weight: 500;
        }

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

        .breadcrumb .current {
            color: var(--text-main);
            font-weight: 600;
        }

        /* ===== Category Header ===== */
        .category-header {
            background: var(--primary-soft);
            background-image: linear-gradient(180deg, #F5FAFF 0%, #E8F1FC 100%);
            padding: 40px 0 36px;
            border-bottom: 1px solid var(--border-light);
        }

        .category-header h1 {
            font-size: 28px;
            font-weight: 800;
            color: var(--text-main);
            margin: 0 0 12px;
            letter-spacing: 0.3px;
            line-height: 1.35;
        }

        .category-header .cat-desc {
            font-size: 15px;
            line-height: 1.8;
            color: var(--text-secondary);
            max-width: 780px;
            margin: 0;
        }

        .category-header .cat-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
            margin-top: 14px;
            font-size: 13px;
            color: var(--text-weak);
        }

        .category-header .cat-meta span {
            display: inline-flex;
            align-items: center;
            gap: 5px;
        }

        .category-header .cat-meta i {
            color: var(--primary);
            font-size: 13px;
        }

        /* ===== Section Generic ===== */
        .section {
            padding: var(--section-spacing) 0;
        }

        .section-alt {
            background: var(--bg-gray);
        }

        .section-title {
            font-size: 22px;
            font-weight: 700;
            color: var(--text-main);
            margin: 0 0 8px;
            letter-spacing: 0.2px;
            line-height: 1.4;
        }

        .section-subtitle {
            font-size: 14px;
            color: var(--text-secondary);
            margin: 0 0 28px;
            line-height: 1.7;
            max-width: 640px;
        }

        .section-header-row {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            margin-bottom: 24px;
        }

        .section-header-row .section-title {
            margin: 0;
        }

        .section-header-row .section-subtitle {
            margin: 4px 0 0;
            max-width: 500px;
        }

        .view-more-link {
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            white-space: nowrap;
            display: inline-flex;
            align-items: center;
            gap: 5px;
            transition: all 0.2s ease;
            padding: 6px 12px;
            border-radius: 6px;
            background: var(--primary-light);
        }

        .view-more-link:hover {
            background: var(--primary);
            color: #fff;
        }

        /* ===== Training Guide List ===== */
        .training-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: var(--card-gap);
        }

        .training-card {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            display: flex;
            flex-direction: column;
            transition: all 0.25s ease;
            border: 1px solid var(--border-light);
        }

        .training-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
            border-color: rgba(46, 117, 216, 0.3);
        }

        .training-card-img {
            position: relative;
            height: 180px;
            overflow: hidden;
            background: var(--bg-blue-gray);
        }

        .training-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 0;
            transition: transform 0.3s ease;
        }

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

        .training-card-badge {
            position: absolute;
            top: 10px;
            left: 10px;
            background: rgba(26, 31, 46, 0.75);
            color: #fff;
            font-size: 11px;
            font-weight: 600;
            padding: 3px 10px;
            border-radius: 999px;
            backdrop-filter: blur(4px);
            -webkit-backdrop-filter: blur(4px);
        }

        .training-card-body {
            padding: 16px 18px 18px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }

        .training-card-body h3 {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-main);
            margin: 0 0 8px;
            line-height: 1.45;
        }

        .training-card-body .training-desc {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin: 0 0 12px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .training-card-meta {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 10px;
            font-size: 12px;
            color: var(--text-weak);
            margin-top: auto;
            padding-top: 10px;
            border-top: 1px solid var(--border-light);
        }

        .training-card-meta .tag {
            background: var(--primary-light);
            color: var(--primary);
            font-weight: 600;
            padding: 2px 8px;
            border-radius: 4px;
            font-size: 11px;
        }

        .training-card-meta .difficulty {
            display: inline-flex;
            align-items: center;
            gap: 3px;
        }

        .training-card-meta .difficulty.easy {
            color: var(--green);
        }

        .training-card-meta .difficulty.medium {
            color: var(--accent);
        }

        .training-card-meta .difficulty.hard {
            color: #E05252;
        }

        .training-card-meta .duration {
            display: inline-flex;
            align-items: center;
            gap: 3px;
        }

        /* ===== Hot Recommendations ===== */
        .hot-scroll {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--card-gap);
        }

        .hot-card {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            border: 1px solid var(--border-light);
            transition: all 0.25s ease;
        }

        .hot-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
            border-color: rgba(46, 117, 216, 0.3);
        }

        .hot-card-img {
            height: 140px;
            overflow: hidden;
            background: var(--bg-blue-gray);
        }

        .hot-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 0;
            transition: transform 0.3s ease;
        }

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

        .hot-card-body {
            padding: 12px 14px 14px;
        }

        .hot-card-body h3 {
            font-size: 14px;
            font-weight: 700;
            color: var(--text-main);
            margin: 0 0 6px;
            line-height: 1.4;
        }

        .hot-card-body .hot-tag {
            font-size: 11px;
            color: var(--accent);
            font-weight: 600;
            background: rgba(245, 166, 35, 0.1);
            padding: 2px 8px;
            border-radius: 4px;
            display: inline-block;
        }

        .hot-card-body .hot-date {
            font-size: 12px;
            color: var(--text-weak);
            display: block;
            margin-top: 6px;
        }

        /* ===== Data Snapshot ===== */
        .snapshot-bar {
            background: var(--bg-blue-gray);
            border-radius: var(--radius-md);
            padding: 20px 24px;
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
            border: 1px solid var(--border-light);
        }

        .snapshot-item {
            text-align: center;
        }

        .snapshot-item .snapshot-num {
            font-size: 26px;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.3;
            letter-spacing: 0.3px;
        }

        .snapshot-item .snapshot-num .unit {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-secondary);
        }

        .snapshot-item .snapshot-label {
            font-size: 12px;
            color: var(--text-secondary);
            margin-top: 4px;
            line-height: 1.5;
        }

        /* ===== Subscribe CTA ===== */
        .subscribe-cta {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            padding: 28px 32px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 16px;
        }

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

        .subscribe-cta .cta-text h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-main);
            margin: 0 0 6px;
        }

        .subscribe-cta .cta-text p {
            font-size: 13px;
            color: var(--text-secondary);
            margin: 0;
            line-height: 1.7;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 12px 22px;
            border-radius: 8px;
            font-weight: 600;
            font-size: 14px;
            cursor: pointer;
            border: none;
            transition: all 0.25s ease;
            text-decoration: none;
            white-space: nowrap;
            letter-spacing: 0.3px;
        }

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

        .btn-primary:hover {
            background: var(--primary-dark);
            color: #fff;
            box-shadow: 0 4px 14px rgba(46, 117, 216, 0.3);
        }

        .btn-outline {
            background: transparent;
            color: var(--primary);
            border: 1px solid var(--primary);
        }

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

        .btn-lg {
            padding: 14px 28px;
            font-size: 15px;
            border-radius: 8px;
        }

        /* ===== SEO Text Block ===== */
        .seo-text-block {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            padding: 28px 32px;
        }

        .seo-text-block h2 {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-main);
            margin: 0 0 14px;
        }

        .seo-text-block p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.85;
            margin: 0 0 12px;
        }

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

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 820px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            margin-bottom: 12px;
            overflow: hidden;
            transition: all 0.2s ease;
        }

        .faq-item:hover {
            border-color: rgba(46, 117, 216, 0.35);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            padding: 16px 20px;
            cursor: pointer;
            font-size: 15px;
            font-weight: 600;
            color: var(--text-main);
            transition: all 0.2s ease;
            user-select: none;
            -webkit-user-select: none;
            background: none;
            border: none;
            width: 100%;
            text-align: left;
            font-family: var(--font-stack);
        }

        .faq-question:hover {
            color: var(--primary);
        }

        .faq-question .faq-icon {
            flex-shrink: 0;
            font-size: 14px;
            color: var(--primary);
            transition: transform 0.25s ease;
        }

        .faq-item.open .faq-question .faq-icon {
            transform: rotate(180deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.2s ease;
            padding: 0 20px;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 20px 16px;
        }

        .faq-answer p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin: 0;
        }

        /* ===== Pagination ===== */
        .pagination-area {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            flex-wrap: wrap;
            padding: 12px 0;
        }

        .pagination-area .page-btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-width: 36px;
            height: 36px;
            padding: 0 10px;
            border-radius: 6px;
            font-size: 13px;
            font-weight: 500;
            color: var(--text-secondary);
            background: var(--bg-white);
            border: 1px solid var(--border-light);
            cursor: pointer;
            transition: all 0.2s ease;
            text-decoration: none;
        }

        .pagination-area .page-btn:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: var(--primary-soft);
        }

        .pagination-area .page-btn.current {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            font-weight: 600;
        }

        .pagination-area .page-btn.disabled {
            opacity: 0.45;
            pointer-events: none;
        }

        /* ===== Related Categories ===== */
        .related-cats {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 12px;
        }

        .related-cat-link {
            background: var(--bg-white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-sm);
            padding: 14px 16px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 8px;
            font-size: 13px;
            font-weight: 600;
            color: var(--text-main);
            transition: all 0.2s ease;
            text-decoration: none;
        }

        .related-cat-link:hover {
            border-color: var(--primary);
            color: var(--primary);
            box-shadow: var(--shadow-sm);
            transform: translateY(-1px);
        }

        .related-cat-link i {
            color: var(--text-weak);
            font-size: 12px;
            transition: color 0.2s ease;
        }

        .related-cat-link:hover i {
            color: var(--primary);
        }

        /* ===== Footer ===== */
        .site-footer {
            background: #26303E;
            color: #c8d0dc;
            padding: 48px 0 32px;
            margin-top: 0;
        }

        .site-footer .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1fr;
            gap: 32px;
            padding-bottom: 28px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .site-footer .footer-brand h3 {
            font-size: 18px;
            font-weight: 700;
            color: #fff;
            margin: 0 0 8px;
        }

        .site-footer .footer-brand p {
            font-size: 13px;
            line-height: 1.7;
            color: #aab4c2;
            margin: 0;
            max-width: 280px;
        }

        .site-footer .footer-col h4 {
            font-size: 14px;
            font-weight: 600;
            color: #fff;
            margin: 0 0 12px;
        }

        .site-footer .footer-col a {
            display: block;
            color: #aab4c2;
            font-size: 13px;
            padding: 4px 0;
            transition: color 0.2s ease;
            text-decoration: none;
        }

        .site-footer .footer-col a:hover {
            color: #fff;
        }

        .site-footer .footer-bottom {
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 8px 16px;
            font-size: 12px;
            color: #8a93a3;
        }

        .site-footer .footer-bottom a {
            color: #aab4c2;
            text-decoration: none;
            transition: color 0.2s ease;
        }

        .site-footer .footer-bottom a:hover {
            color: #fff;
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .training-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .hot-scroll {
                grid-template-columns: repeat(2, 1fr);
            }

            .snapshot-bar {
                grid-template-columns: repeat(2, 1fr);
            }

            .related-cats {
                grid-template-columns: repeat(2, 1fr);
            }

            .site-footer .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 768px) {
            .nav-toggle {
                display: flex;
            }

            .main-nav {
                display: none;
                width: 100%;
                flex-direction: column;
                align-items: flex-start;
                gap: 4px;
                padding: 12px 0 16px;
            }

            .main-nav.open {
                display: flex;
            }

            .main-nav a {
                width: 100%;
                padding: 10px 12px;
                font-size: 14px;
            }

            .lang-switch {
                display: flex;
                gap: 4px;
                padding: 8px 0;
                width: 100%;
                border-top: 1px solid var(--border-light);
                margin-top: 8px;
                padding-top: 14px;
            }

            .lang-switch button {
                flex: 1;
                text-align: center;
            }

            .category-header h1 {
                font-size: 22px;
            }

            .section-title {
                font-size: 19px;
            }

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

            .hot-scroll {
                grid-template-columns: 1fr;
            }

            .snapshot-bar {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
                padding: 16px;
            }

            .snapshot-item .snapshot-num {
                font-size: 22px;
            }

            .subscribe-cta {
                flex-direction: column;
                align-items: flex-start;
                padding: 20px;
            }

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

            .seo-text-block {
                padding: 20px;
            }

            .seo-text-block h2 {
                font-size: 18px;
            }

            .related-cats {
                grid-template-columns: 1fr 1fr;
            }

            .site-footer .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }

            .site-footer .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 6px;
            }

            .section {
                padding: 36px 0;
            }
        }

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

            .category-header {
                padding: 28px 0 24px;
            }

            .category-header h1 {
                font-size: 20px;
                line-height: 1.4;
            }

            .category-header .cat-desc {
                font-size: 14px;
            }

            .section-title {
                font-size: 17px;
            }

            .training-card-img {
                height: 150px;
            }

            .training-card-body h3 {
                font-size: 15px;
            }

            .snapshot-bar {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
                padding: 12px;
            }

            .snapshot-item .snapshot-num {
                font-size: 18px;
            }

            .related-cats {
                grid-template-columns: 1fr;
            }

            .pagination-area .page-btn {
                min-width: 32px;
                height: 32px;
                font-size: 12px;
                padding: 0 8px;
            }

            .faq-question {
                padding: 14px 16px;
                font-size: 14px;
            }

            .faq-item.open .faq-answer {
                padding: 0 16px 14px;
            }
        }

/* roulang page: category3 */
:root {
            --primary: #2E75D8;
            --primary-dark: #245EAD;
            --primary-light: #E8F1FC;
            --primary-soft: #F5FAFF;
            --accent: #F5A623;
            --accent-dark: #D68F1A;
            --bg-white: #FFFFFF;
            --bg-gray: #F7F9FC;
            --bg-blue-gray: #EDF3FB;
            --text-main: #1A1F2E;
            --text-secondary: #5A6270;
            --text-weak: #8A93A3;
            --green: #1FB47A;
            --border-light: #D6E1F0;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --shadow-sm: 0 2px 10px rgba(0, 20, 50, 0.06);
            --shadow-md: 0 6px 18px rgba(46, 117, 216, 0.12);
            --shadow-lg: 0 10px 30px rgba(0, 20, 50, 0.1);
            --font-stack: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', 'Helvetica Neue', Arial, sans-serif;
            --section-spacing: 48px;
            --card-gap: 16px;
        }

        * {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-stack);
            font-size: 15px;
            line-height: 1.75;
            color: var(--text-main);
            background: var(--bg-white);
            min-height: 100vh;
            overflow-x: hidden;
            margin: 0;
            padding: 0;
        }

        a {
            color: var(--primary);
            text-decoration: none;
            transition: color 0.2s ease;
        }

        a:hover,
        a:focus {
            color: var(--primary-dark);
        }

        a:focus-visible {
            outline: 3px solid rgba(46, 117, 216, 0.35);
            outline-offset: 2px;
            border-radius: 4px;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-md);
        }

        button,
        input,
        select,
        textarea {
            font-family: var(--font-stack);
            font-size: 14px;
        }

        button:focus-visible,
        input:focus-visible,
        select:focus-visible {
            outline: 3px solid rgba(46, 117, 216, 0.3);
            outline-offset: 1px;
            border-radius: 4px;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 20px;
            padding-right: 20px;
        }

        /* ===== Header / Navigation ===== */
        .site-header {
            background: rgba(255, 255, 255, 0.97);
            border-bottom: 1px solid var(--border-light);
            box-shadow: 0 1px 6px rgba(0, 20, 50, 0.04);
            position: sticky;
            top: 0;
            z-index: 80;
            width: 100%;
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
        }

        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            min-height: 64px;
            gap: 12px 20px;
        }

        .brand-logo {
            font-size: 20px;
            font-weight: 800;
            color: var(--text-main);
            letter-spacing: 0.5px;
            display: flex;
            align-items: center;
            gap: 8px;
            white-space: nowrap;
        }

        .brand-logo .logo-icon {
            width: 32px;
            height: 32px;
            background: var(--primary);
            border-radius: 8px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 16px;
            font-weight: 700;
        }

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

        .main-nav {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-wrap: wrap;
        }

        .main-nav a {
            color: var(--text-secondary);
            font-size: 14px;
            font-weight: 500;
            padding: 8px 12px;
            border-radius: 6px;
            transition: all 0.2s ease;
            white-space: nowrap;
        }

        .main-nav a:hover {
            color: var(--primary);
            background: var(--primary-soft);
        }

        .main-nav a.active {
            color: var(--primary);
            background: var(--primary-light);
            font-weight: 600;
        }

        .lang-switch button {
            background: transparent;
            border: none;
            font-size: 12px;
            color: var(--text-secondary);
            padding: 5px 12px;
            border-radius: 999px;
            cursor: pointer;
            font-weight: 500;
            transition: all 0.2s ease;
            white-space: nowrap;
        }

        .lang-switch button.active {
            background: var(--primary);
            color: #fff;
            font-weight: 600;
        }

        .lang-switch button:hover:not(.active) {
            color: var(--primary);
            background: var(--primary-soft);
        }

        .nav-toggle {
            display: none;
            background: none;
            border: 1px solid var(--border-light);
            border-radius: 8px;
            width: 40px;
            height: 40px;
            font-size: 20px;
            color: var(--text-main);
            cursor: pointer;
            align-items: center;
            justify-content: center;
        }

        /* ===== Breadcrumbs ===== */
        .breadcrumb-bar {
            background: var(--bg-gray);
            padding: 16px 0;
            border-bottom: 1px solid var(--border-light);
        }

        .breadcrumbs {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-weak);
            flex-wrap: wrap;
        }

        .breadcrumbs a {
            color: var(--text-secondary);
            transition: color 0.2s ease;
        }

        .breadcrumbs a:hover {
            color: var(--primary);
        }

        .breadcrumbs .separator {
            color: var(--text-weak);
            font-weight: 300;
        }

        .breadcrumbs .current {
            color: var(--primary);
            font-weight: 600;
        }

        /* ===== Page Header ===== */
        .page-header {
            background: var(--primary-soft);
            background-image: linear-gradient(175deg, #F5FAFF 0%, #E8F1FC 100%);
            padding: 40px 0 36px;
            position: relative;
            overflow: hidden;
        }

        .page-header::after {
            content: '';
            position: absolute;
            top: -30px;
            right: -50px;
            width: 200px;
            height: 200px;
            background: rgba(46, 117, 216, 0.05);
            border-radius: 50%;
            pointer-events: none;
        }

        .page-header .container {
            position: relative;
            z-index: 1;
        }

        .page-header h1 {
            font-size: 28px;
            font-weight: 700;
            color: var(--text-main);
            margin: 0 0 10px;
            line-height: 1.35;
        }

        .page-header .page-desc {
            font-size: 15px;
            color: var(--text-secondary);
            max-width: 760px;
            line-height: 1.75;
            margin: 0;
        }

        /* ===== Main Sections ===== */
        main {
            padding-bottom: 40px;
        }

        .section {
            padding: var(--section-spacing) 0;
        }

        .section-alt {
            background: var(--bg-gray);
        }

        .section-title {
            font-size: 22px;
            font-weight: 700;
            color: var(--text-main);
            margin: 0 0 24px;
            line-height: 1.4;
        }

        .section-title .title-accent {
            display: inline-block;
            width: 4px;
            height: 20px;
            background: var(--accent);
            border-radius: 2px;
            margin-right: 8px;
            vertical-align: -3px;
        }

        /* ===== Listing Cards ===== */
        .listing-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px 20px;
        }

        .listing-card {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            overflow: hidden;
            display: flex;
            flex-direction: row;
            transition: all 0.25s ease;
            min-height: 180px;
        }

        .listing-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
            border-color: var(--primary-light);
        }

        .listing-card .card-thumb {
            flex: 0 0 180px;
            max-width: 180px;
            min-height: 180px;
            background: var(--bg-blue-gray);
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 0;
            overflow: hidden;
        }

        .listing-card .card-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 0;
        }

        .listing-card .card-body {
            flex: 1;
            padding: 18px 20px;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .listing-card .card-category {
            display: inline-block;
            font-size: 11px;
            font-weight: 600;
            color: var(--primary);
            background: var(--primary-light);
            padding: 2px 10px;
            border-radius: 999px;
            letter-spacing: 0.3px;
            align-self: flex-start;
        }

        .listing-card .card-title {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-main);
            margin: 0;
            line-height: 1.5;
        }

        .listing-card .card-title a {
            color: var(--text-main);
            transition: color 0.2s ease;
        }

        .listing-card .card-title a:hover {
            color: var(--primary);
        }

        .listing-card .card-excerpt {
            font-size: 13px;
            color: var(--text-secondary);
            margin: 0;
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .listing-card .card-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 12px;
            color: var(--text-weak);
            margin-top: auto;
            flex-wrap: wrap;
        }

        .listing-card .card-meta .meta-item {
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        .listing-card .card-meta i {
            font-size: 11px;
            color: var(--text-weak);
        }

        /* ===== Hot Recommendations ===== */
        .hot-scroll {
            display: flex;
            gap: 16px;
            overflow-x: auto;
            padding-bottom: 12px;
            scroll-snap-type: x mandatory;
            -webkit-overflow-scrolling: touch;
        }

        .hot-scroll::-webkit-scrollbar {
            height: 6px;
        }

        .hot-scroll::-webkit-scrollbar-track {
            background: var(--bg-blue-gray);
            border-radius: 3px;
        }

        .hot-scroll::-webkit-scrollbar-thumb {
            background: var(--border-light);
            border-radius: 3px;
        }

        .hot-scroll::-webkit-scrollbar-thumb:hover {
            background: var(--primary-light);
        }

        .hot-card {
            flex: 0 0 240px;
            min-width: 240px;
            background: var(--bg-white);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            overflow: hidden;
            scroll-snap-align: start;
            transition: all 0.25s ease;
        }

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

        .hot-card .hot-thumb {
            width: 100%;
            height: 120px;
            background: var(--bg-blue-gray);
            overflow: hidden;
            border-radius: 0;
        }

        .hot-card .hot-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 0;
        }

        .hot-card .hot-body {
            padding: 14px 16px;
        }

        .hot-card .hot-tag {
            font-size: 11px;
            font-weight: 600;
            color: var(--accent);
            background: rgba(245, 166, 35, 0.14);
            padding: 2px 8px;
            border-radius: 999px;
            display: inline-block;
            margin-bottom: 6px;
        }

        .hot-card .hot-title {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-main);
            margin: 0 0 4px;
            line-height: 1.45;
        }

        .hot-card .hot-title a {
            color: var(--text-main);
            transition: color 0.2s ease;
        }

        .hot-card .hot-title a:hover {
            color: var(--primary);
        }

        .hot-card .hot-meta {
            font-size: 12px;
            color: var(--text-weak);
            margin: 0;
        }

        /* ===== Stats Bar ===== */
        .stats-bar {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
            background: var(--bg-blue-gray);
            border-radius: var(--radius-md);
            padding: 20px 24px;
            border: 1px solid var(--border-light);
        }

        .stat-item {
            text-align: center;
        }

        .stat-item .stat-num {
            font-size: 26px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.4;
        }

        .stat-item .stat-label {
            font-size: 13px;
            color: var(--text-secondary);
            margin-top: 2px;
        }

        /* ===== Related Category Links ===== */
        .related-cats {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
            align-items: center;
        }

        .related-cats .rel-label {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-secondary);
            margin-right: 4px;
        }

        .related-cats a {
            display: inline-block;
            font-size: 13px;
            font-weight: 500;
            color: var(--text-secondary);
            background: var(--bg-white);
            border: 1px solid var(--border-light);
            border-radius: 6px;
            padding: 6px 16px;
            transition: all 0.2s ease;
        }

        .related-cats a:hover {
            color: var(--primary);
            border-color: var(--primary);
            background: var(--primary-soft);
        }

        /* ===== Subscribe CTA ===== */
        .subscribe-cta {
            background: var(--primary-soft);
            border-radius: var(--radius-lg);
            padding: 32px 36px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            flex-wrap: wrap;
            background-image: linear-gradient(160deg, #F5FAFF 0%, #E8F1FC 100%);
            border: 1px solid var(--border-light);
        }

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

        .subscribe-cta .cta-text h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-main);
            margin: 0 0 6px;
        }

        .subscribe-cta .cta-text p {
            font-size: 14px;
            color: var(--text-secondary);
            margin: 0;
            line-height: 1.6;
        }

        .subscribe-cta .cta-form {
            display: flex;
            gap: 10px;
            align-items: center;
            flex-wrap: wrap;
        }

        .subscribe-cta .cta-form input[type="email"] {
            min-width: 240px;
            padding: 12px 16px;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-sm);
            font-size: 14px;
            color: var(--text-main);
            background: var(--bg-white);
            transition: border-color 0.2s ease, box-shadow 0.2s ease;
        }

        .subscribe-cta .cta-form input[type="email"]:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 4px rgba(46, 117, 216, 0.12);
            outline: none;
        }

        .btn-primary {
            background: var(--primary);
            color: #fff;
            border: none;
            padding: 12px 22px;
            border-radius: var(--radius-sm);
            font-size: 14px;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.25s ease;
            white-space: nowrap;
            letter-spacing: 0.3px;
        }

        .btn-primary:hover {
            background: var(--primary-dark);
            color: #fff;
            box-shadow: 0 4px 12px rgba(46, 117, 216, 0.3);
            transform: translateY(-1px);
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: none;
            background: var(--primary-dark);
        }

        /* ===== SEO Text Block ===== */
        .seo-text-block {
            max-width: 860px;
            margin: 0 auto;
        }

        .seo-text-block p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.85;
            margin: 0 0 16px;
        }

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

        .seo-text-block strong {
            color: var(--text-main);
            font-weight: 600;
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .faq-item {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            transition: all 0.2s ease;
        }

        .faq-item:hover {
            border-color: var(--primary-light);
            box-shadow: var(--shadow-md);
        }

        .faq-item summary {
            padding: 18px 20px;
            font-size: 15px;
            font-weight: 600;
            color: var(--text-main);
            cursor: pointer;
            list-style: none;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            transition: color 0.2s ease;
        }

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

        .faq-item summary::marker {
            content: '';
        }

        .faq-item summary .faq-icon {
            flex-shrink: 0;
            width: 22px;
            height: 22px;
            border-radius: 50%;
            background: var(--primary-light);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 12px;
            transition: transform 0.3s ease;
        }

        .faq-item[open] summary {
            color: var(--primary);
        }

        .faq-item[open] summary .faq-icon {
            transform: rotate(180deg);
            background: var(--primary);
            color: #fff;
        }

        .faq-item .faq-answer {
            padding: 0 20px 18px;
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.75;
        }

        .faq-item .faq-answer p {
            margin: 0;
        }

        /* ===== Pagination ===== */
        .pagination-bar {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 16px 0;
            flex-wrap: wrap;
        }

        .pagination-bar .page-link {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-width: 36px;
            height: 36px;
            padding: 0 10px;
            border-radius: var(--radius-sm);
            font-size: 13px;
            font-weight: 500;
            color: var(--text-secondary);
            background: var(--bg-white);
            border: 1px solid var(--border-light);
            transition: all 0.2s ease;
            cursor: pointer;
        }

        .pagination-bar .page-link.active {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            font-weight: 600;
        }

        .pagination-bar .page-link:hover:not(.active) {
            color: var(--primary);
            border-color: var(--primary);
            background: var(--primary-soft);
        }

        .pagination-bar .page-link.disabled {
            opacity: 0.5;
            pointer-events: none;
        }

        .pagination-bar .page-link.prev,
        .pagination-bar .page-link.next {
            padding: 0 16px;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: #26303E;
            color: #C5CCD8;
            padding: 48px 0 0;
            margin-top: 40px;
        }

        .site-footer .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 32px 24px;
            padding-bottom: 32px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }

        .site-footer h3 {
            color: #fff;
            font-size: 18px;
            font-weight: 700;
            margin: 0 0 12px;
        }

        .site-footer h4 {
            color: #fff;
            font-size: 14px;
            font-weight: 600;
            margin: 0 0 12px;
        }

        .site-footer p {
            font-size: 13px;
            line-height: 1.7;
            color: #A8B0BD;
            margin: 0;
        }

        .site-footer .footer-col a {
            display: block;
            font-size: 13px;
            color: #A8B0BD;
            padding: 4px 0;
            transition: color 0.2s ease;
        }

        .site-footer .footer-col a:hover {
            color: #fff;
        }

        .site-footer .footer-bottom {
            padding: 20px 0;
            display: flex;
            flex-wrap: wrap;
            gap: 8px 16px;
            align-items: center;
            font-size: 12px;
            color: #8A93A3;
        }

        .site-footer .footer-bottom span {
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        .site-footer .footer-bottom a {
            color: #8A93A3;
            transition: color 0.2s ease;
        }

        .site-footer .footer-bottom a:hover {
            color: #fff;
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .listing-grid {
                gap: 18px 14px;
            }

            .listing-card .card-thumb {
                flex: 0 0 140px;
                max-width: 140px;
                min-height: 140px;
            }

            .stats-bar {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }
        }

        @media (max-width: 768px) {
            :root {
                --section-spacing: 36px;
                --card-gap: 12px;
            }

            .nav-toggle {
                display: inline-flex;
            }

            .main-nav {
                display: none;
                flex-basis: 100%;
                flex-direction: column;
                align-items: stretch;
                gap: 4px;
                padding: 12px 0;
                border-top: 1px solid var(--border-light);
            }

            .main-nav.open {
                display: flex;
            }

            .main-nav a {
                text-align: left;
                padding: 10px 12px;
            }

            .lang-switch {
                display: flex;
                gap: 6px;
                padding: 8px 0;
                border-top: 1px solid var(--border-light);
                margin-top: 4px;
            }

            .lang-switch button {
                flex: 1;
                text-align: center;
            }

            .page-header h1 {
                font-size: 24px;
            }

            .page-header .page-desc {
                font-size: 14px;
            }

            .listing-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }

            .listing-card {
                flex-direction: column;
            }

            .listing-card .card-thumb {
                flex: none;
                max-width: 100%;
                min-height: 160px;
                width: 100%;
            }

            .listing-card .card-body {
                padding: 14px 16px;
                gap: 6px;
            }

            .listing-card .card-title {
                font-size: 15px;
            }

            .stats-bar {
                grid-template-columns: repeat(2, 1fr);
                padding: 16px;
                gap: 10px;
            }

            .stat-item .stat-num {
                font-size: 20px;
            }

            .subscribe-cta {
                padding: 24px 20px;
                flex-direction: column;
                align-items: stretch;
                gap: 16px;
            }

            .subscribe-cta .cta-form {
                flex-direction: column;
                width: 100%;
            }

            .subscribe-cta .cta-form input[type="email"] {
                min-width: 100%;
                width: 100%;
            }

            .subscribe-cta .cta-form .btn-primary {
                width: 100%;
                text-align: center;
            }

            .site-footer .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px 16px;
            }

            .site-footer .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 6px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding-left: 14px;
                padding-right: 14px;
            }

            .brand-logo {
                font-size: 18px;
            }

            .brand-logo .logo-icon {
                width: 28px;
                height: 28px;
                font-size: 14px;
            }

            .page-header {
                padding: 28px 0 24px;
            }

            .page-header h1 {
                font-size: 21px;
            }

            .section-title {
                font-size: 18px;
            }

            .hot-card {
                flex: 0 0 200px;
                min-width: 200px;
            }

            .hot-card .hot-thumb {
                height: 100px;
            }

            .stats-bar {
                grid-template-columns: 1fr 1fr;
                padding: 12px;
                gap: 8px;
            }

            .stat-item .stat-num {
                font-size: 18px;
            }

            .stat-item .stat-label {
                font-size: 12px;
            }

            .related-cats {
                gap: 8px;
            }

            .related-cats a {
                font-size: 12px;
                padding: 5px 12px;
            }

            .subscribe-cta {
                padding: 20px 16px;
            }

            .subscribe-cta .cta-text h3 {
                font-size: 17px;
            }

            .faq-item summary {
                padding: 14px 16px;
                font-size: 14px;
            }

            .faq-item .faq-answer {
                padding: 0 16px 14px;
                font-size: 13px;
            }

            .site-footer .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
        }