/* roulang page: index */
:root {
            --primary: #2785D2;
            --primary-dark: #1a5f9e;
            --primary-light: #e8f2fb;
            --accent: #F28A4F;
            --accent-hover: #e0763a;
            --bg: #F5F8FC;
            --bg-white: #FFFFFF;
            --text-main: #1C2B3A;
            --text-muted: #5A6C7E;
            --border: #E4EDF5;
            --shadow-sm: 0 2px 8px rgba(25, 55, 85, 0.04);
            --shadow-md: 0 8px 24px rgba(25, 55, 85, 0.06);
            --shadow-lg: 0 16px 40px rgba(25, 55, 85, 0.1);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 24px;
            --container: 1200px;
            --section-pad: 72px;
            --nav-height: 64px;
            --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', 'Inter', 'Roboto', sans-serif;
            --transition: all 0.28s cubic-bezier(0.4, 0, 0.2, 1);
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.75;
            color: var(--text-main);
            background: var(--bg);
            min-height: 100vh;
        }
        img {
            max-width: 100%;
            height: auto;
            object-fit: cover;
            border-radius: var(--radius-md);
            display: block;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--primary-dark);
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            outline: none;
            border: none;
        }
        button {
            cursor: pointer;
            background: none;
        }
        .container {
            width: 100%;
            max-width: var(--container);
            margin: 0 auto;
            padding: 0 24px;
        }
        .sr-only {
            position: absolute;
            width: 1px;
            height: 1px;
            padding: 0;
            margin: -1px;
            overflow: hidden;
            clip: rect(0, 0, 0, 0);
            border: 0;
        }
        section {
            padding: var(--section-pad) 0;
        }
        .section-bg-white {
            background: var(--bg-white);
        }
        .section-bg-light {
            background: var(--bg);
        }
        .section-header {
            margin-bottom: 48px;
        }
        .section-header h2 {
            font-size: clamp(26px, 3.2vw, 32px);
            font-weight: 700;
            line-height: 1.35;
            color: var(--text-main);
            margin-bottom: 12px;
        }
        .section-header p {
            font-size: 16px;
            line-height: 1.85;
            color: var(--text-muted);
            max-width: 720px;
        }
        .section-header .tag {
            display: inline-block;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 13px;
            font-weight: 600;
            padding: 4px 14px;
            border-radius: 20px;
            margin-bottom: 16px;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            min-height: 44px;
            padding: 10px 24px;
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-weight: 600;
            line-height: 1.4;
            transition: var(--transition);
            white-space: nowrap;
            border: 2px solid transparent;
        }
        .btn-primary {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            border-color: var(--primary-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
        }
        .btn-primary:active {
            transform: translateY(0);
            background: #164f82;
        }
        .btn-primary:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }
        .btn-accent {
            background: var(--accent);
            color: #fff;
            border-color: var(--accent);
        }
        .btn-accent:hover {
            background: var(--accent-hover);
            border-color: var(--accent-hover);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
        }
        .btn-accent:active {
            transform: translateY(0);
            background: #d9692c;
        }
        .btn-accent:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }
        .btn-outline {
            background: transparent;
            color: var(--primary);
            border-color: var(--primary);
        }
        .btn-outline:hover {
            background: var(--primary-light);
            color: var(--primary-dark);
            border-color: var(--primary);
            transform: translateY(-2px);
        }
        .btn-outline:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }
        .btn-outline-white {
            background: transparent;
            color: #fff;
            border-color: rgba(255, 255, 255, 0.7);
        }
        .btn-outline-white:hover {
            background: rgba(255, 255, 255, 0.15);
            color: #fff;
            border-color: #fff;
        }
        .btn-lg {
            min-height: 50px;
            padding: 14px 32px;
            font-size: 17px;
            border-radius: var(--radius-md);
        }
        .btn-sm {
            min-height: 36px;
            padding: 6px 16px;
            font-size: 13px;
            border-radius: 6px;
        }
        .badge {
            display: inline-block;
            padding: 3px 10px;
            border-radius: 12px;
            font-size: 12px;
            font-weight: 600;
            line-height: 1.4;
        }
        .badge-blue {
            background: var(--primary-light);
            color: var(--primary);
        }
        .badge-orange {
            background: #fef0e8;
            color: var(--accent);
        }
        .badge-green {
            background: #e8f7ee;
            color: #1d8a4f;
        }
        .card {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-md);
            overflow: hidden;
            transition: var(--transition);
        }
        .card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
        }
        .card-body {
            padding: 24px;
        }
        .card-body h3 {
            font-size: 19px;
            font-weight: 700;
            line-height: 1.4;
            color: var(--text-main);
            margin-bottom: 8px;
        }
        .card-body p {
            font-size: 14px;
            line-height: 1.75;
            color: var(--text-muted);
        }
        .grid-2 {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 28px;
        }
        .grid-3 {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .grid-4 {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .grid-5 {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 20px;
        }

        /* Header / Nav */
        header.site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: var(--bg-white);
            border-bottom: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            height: var(--nav-height);
            display: flex;
            align-items: center;
        }
        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 20px;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: 0.02em;
        }
        .logo svg {
            display: block;
            flex-shrink: 0;
        }
        .logo:hover {
            color: var(--primary-dark);
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 28px;
        }
        .main-nav a {
            color: var(--text-muted);
            font-size: 15px;
            font-weight: 500;
            padding: 8px 0;
            position: relative;
            white-space: nowrap;
        }
        .main-nav a::after {
            content: "";
            position: absolute;
            left: 0;
            bottom: -2px;
            width: 0;
            height: 2px;
            background: var(--primary);
            transition: var(--transition);
            border-radius: 1px;
        }
        .main-nav a:hover {
            color: var(--primary);
        }
        .main-nav a:hover::after,
        .main-nav a.active::after {
            width: 100%;
        }
        .main-nav a.active {
            color: var(--primary);
            font-weight: 600;
        }
        .nav-right {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .lang-switcher {
            display: flex;
            align-items: center;
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: 20px;
            padding: 3px;
            gap: 2px;
        }
        .lang-switcher button {
            padding: 6px 14px;
            border-radius: 16px;
            font-size: 13px;
            font-weight: 500;
            color: var(--text-muted);
            transition: var(--transition);
            min-height: 32px;
            display: flex;
            align-items: center;
            gap: 4px;
        }
        .lang-switcher button.active {
            background: #fff;
            color: var(--primary);
            box-shadow: var(--shadow-sm);
            font-weight: 600;
        }
        .lang-switcher button:hover {
            color: var(--primary);
        }
        .nav-cta {
            min-height: 40px;
            padding: 8px 18px;
            font-size: 14px;
            border-radius: 20px;
            white-space: nowrap;
        }
        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            min-height: 44px;
            min-width: 44px;
            align-items: center;
            justify-content: center;
            border-radius: var(--radius-sm);
            background: none;
        }
        .hamburger span {
            display: block;
            width: 22px;
            height: 2px;
            background: var(--text-main);
            border-radius: 2px;
            transition: var(--transition);
        }
        .hamburger.open span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }
        .hamburger.open span:nth-child(2) {
            opacity: 0;
        }
        .hamburger.open span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }
        .mobile-menu {
            display: none;
            position: fixed;
            top: var(--nav-height);
            left: 0;
            right: 0;
            background: var(--bg-white);
            border-bottom: 1px solid var(--border);
            box-shadow: var(--shadow-md);
            padding: 16px 24px 24px;
            z-index: 999;
        }
        .mobile-menu.open {
            display: block;
        }
        .mobile-menu nav {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .mobile-menu nav a {
            padding: 12px 16px;
            border-radius: var(--radius-sm);
            font-size: 16px;
            font-weight: 500;
            color: var(--text-main);
            min-height: 44px;
            display: flex;
            align-items: center;
        }
        .mobile-menu nav a:hover,
        .mobile-menu nav a.active {
            background: var(--primary-light);
            color: var(--primary);
        }
        .mobile-menu .lang-switcher {
            margin-top: 12px;
        }
        .mobile-menu .nav-cta {
            margin-top: 12px;
            width: 100%;
            justify-content: center;
        }

        /* Hero */
        .hero {
            position: relative;
            min-height: 620px;
            display: flex;
            align-items: center;
            padding: 80px 0 100px;
            background: var(--text-main);
            overflow: hidden;
        }
        .hero-bg {
            position: absolute;
            inset: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
            opacity: 0.55;
        }
        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(12, 30, 50, 0.72) 0%, rgba(12, 30, 50, 0.55) 50%, rgba(12, 30, 50, 0.8) 100%);
        }
        .hero .container {
            position: relative;
            z-index: 2;
        }
        .hero-content {
            max-width: 720px;
            color: #fff;
        }
        .hero-content h1 {
            font-size: clamp(32px, 4.8vw, 48px);
            font-weight: 800;
            line-height: 1.3;
            letter-spacing: 0.01em;
            margin-bottom: 20px;
            text-shadow: 0 2px 16px rgba(0, 0, 0, 0.35);
        }
        .hero-content p {
            font-size: 17px;
            line-height: 1.9;
            color: rgba(255, 255, 255, 0.88);
            max-width: 640px;
            margin-bottom: 28px;
            text-shadow: 0 1px 8px rgba(0, 0, 0, 0.3);
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            margin-bottom: 28px;
        }
        .hero-countdown {
            display: inline-flex;
            align-items: center;
            gap: 14px;
            background: rgba(255, 255, 255, 0.12);
            backdrop-filter: blur(10px);
            border: 1px solid rgba(255, 255, 255, 0.2);
            border-radius: var(--radius-md);
            padding: 12px 20px;
            color: #fff;
            font-size: 14px;
            font-weight: 500;
        }
        .hero-countdown .cd-time {
            font-weight: 800;
            font-size: 22px;
            letter-spacing: 0.03em;
            background: var(--accent);
            padding: 4px 12px;
            border-radius: 8px;
            min-width: 48px;
            text-align: center;
        }
        .hero-countdown .cd-label {
            font-size: 12px;
            font-weight: 400;
            opacity: 0.85;
        }

        /* Pain points */
        .pain-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .pain-card {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            padding: 28px 24px;
            transition: var(--transition);
            position: relative;
        }
        .pain-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }
        .pain-card .icon-wrap {
            width: 44px;
            height: 44px;
            background: #fef0e8;
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 16px;
        }
        .pain-card h3 {
            font-size: 17px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 8px;
        }
        .pain-card p {
            font-size: 14px;
            line-height: 1.8;
            color: var(--text-muted);
        }

        /* Solution */
        .solution-block {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }
        .solution-text h2 {
            font-size: clamp(26px, 3vw, 32px);
            font-weight: 700;
            margin-bottom: 16px;
            line-height: 1.4;
        }
        .solution-text p {
            font-size: 16px;
            line-height: 1.9;
            color: var(--text-muted);
            margin-bottom: 16px;
        }
        .solution-text .feature-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .solution-text .feature-list li {
            display: flex;
            align-items: flex-start;
            gap: 8px;
            font-size: 15px;
            line-height: 1.7;
            color: var(--text-main);
            list-style: none;
        }
        .solution-text .feature-list li::before {
            content: "✓";
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 20px;
            height: 20px;
            background: var(--primary-light);
            color: var(--primary);
            border-radius: 50%;
            font-size: 12px;
            font-weight: 700;
            flex-shrink: 0;
            margin-top: 2px;
        }
        .solution-img {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
            aspect-ratio: 16/10;
        }
        .solution-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        /* Scene demo */
        .scene-slider {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .scene-item {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            transition: var(--transition);
        }
        .scene-item:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
        }
        .scene-item img {
            width: 100%;
            aspect-ratio: 16/10;
            object-fit: cover;
            border-radius: 0;
            border-top-left-radius: var(--radius-lg);
            border-top-right-radius: var(--radius-lg);
        }
        .scene-item .scene-body {
            padding: 18px 20px 20px;
        }
        .scene-item .scene-body h3 {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 6px;
        }
        .scene-item .scene-body p {
            font-size: 13px;
            line-height: 1.7;
            color: var(--text-muted);
        }

        /* Stats */
        .stats-band {
            background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 55%, #1f7ab8 100%);
            color: #fff;
            padding: 48px 0;
        }
        .stats-band .container {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
            text-align: center;
        }
        .stat-item .stat-num {
            font-size: clamp(32px, 4vw, 44px);
            font-weight: 800;
            line-height: 1.2;
            letter-spacing: 0.01em;
        }
        .stat-item .stat-label {
            font-size: 14px;
            opacity: 0.85;
            margin-top: 4px;
        }

        /* Pricing */
        .pricing-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
            align-items: stretch;
        }
        .price-card {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-md);
            padding: 32px 28px;
            display: flex;
            flex-direction: column;
            transition: var(--transition);
            position: relative;
        }
        .price-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
        }
        .price-card.featured {
            border-color: var(--primary);
            box-shadow: 0 12px 36px rgba(39, 133, 210, 0.18);
        }
        .price-card .price-badge {
            position: absolute;
            top: -12px;
            right: 24px;
            background: var(--accent);
            color: #fff;
            font-size: 12px;
            font-weight: 700;
            padding: 4px 14px;
            border-radius: 16px;
            letter-spacing: 0.02em;
        }
        .price-card .price-name {
            font-size: 17px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 4px;
        }
        .price-card .price-desc {
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 16px;
        }
        .price-card .price-amount {
            font-size: 38px;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
        }
        .price-card .price-amount small {
            font-size: 14px;
            font-weight: 400;
            color: var(--text-muted);
        }
        .price-card .price-features {
            list-style: none;
            margin: 20px 0 24px;
            display: flex;
            flex-direction: column;
            gap: 10px;
            flex-grow: 1;
        }
        .price-card .price-features li {
            display: flex;
            align-items: flex-start;
            gap: 8px;
            font-size: 14px;
            color: var(--text-main);
            line-height: 1.6;
        }
        .price-card .price-features li::before {
            content: "✓";
            color: var(--primary);
            font-weight: 700;
            flex-shrink: 0;
        }
        .price-card .btn {
            width: 100%;
            justify-content: center;
        }

        /* Review wall */
        .review-wall {
            background: var(--bg-white);
        }
        .review-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 16px;
            margin-bottom: 32px;
        }
        .review-score {
            display: flex;
            align-items: center;
            gap: 16px;
        }
        .review-score .big-score {
            font-size: 42px;
            font-weight: 800;
            color: var(--primary);
            line-height: 1;
        }
        .review-score .score-meta {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.5;
        }
        .review-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .review-card {
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 22px 20px;
            transition: var(--transition);
        }
        .review-card:hover {
            background: var(--bg-white);
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }
        .review-card .reviewer {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 12px;
        }
        .review-card .reviewer-avatar {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 15px;
        }
        .review-card .reviewer-name {
            font-weight: 600;
            font-size: 14px;
            color: var(--text-main);
        }
        .review-card .reviewer-date {
            font-size: 12px;
            color: var(--text-muted);
        }
        .review-card .review-text {
            font-size: 13px;
            line-height: 1.75;
            color: var(--text-muted);
            margin-bottom: 10px;
        }
        .review-card .review-stars {
            color: var(--accent);
            font-size: 13px;
            letter-spacing: 2px;
        }

        /* Festival campaign */
        .festival-campaign {
            background: var(--text-main);
            color: #fff;
            border-radius: var(--radius-xl);
            overflow: hidden;
            position: relative;
        }
        .festival-campaign .festival-inner {
            padding: 48px 40px;
            display: grid;
            grid-template-columns: 1fr auto;
            gap: 32px;
            align-items: center;
        }
        .festival-campaign h2 {
            font-size: clamp(24px, 3vw, 30px);
            font-weight: 800;
            margin-bottom: 12px;
            color: #fff;
        }
        .festival-campaign p {
            font-size: 15px;
            line-height: 1.85;
            color: rgba(255, 255, 255, 0.8);
            max-width: 560px;
        }
        .festival-campaign .festival-tag {
            display: inline-block;
            background: var(--accent);
            color: #fff;
            font-size: 13px;
            font-weight: 700;
            padding: 6px 16px;
            border-radius: 16px;
            margin-bottom: 16px;
        }

        /* News */
        .news-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .news-item {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 22px 24px;
            display: grid;
            grid-template-columns: 1fr auto;
            gap: 16px;
            align-items: center;
            transition: var(--transition);
            box-shadow: var(--shadow-sm);
        }
        .news-item:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }
        .news-item .news-date {
            font-size: 12px;
            color: var(--text-muted);
            font-weight: 500;
            white-space: nowrap;
        }
        .news-item h3 {
            font-size: 17px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 6px;
        }
        .news-item p {
            font-size: 14px;
            line-height: 1.75;
            color: var(--text-muted);
        }
        .news-item .btn {
            min-height: 36px;
            padding: 6px 16px;
            font-size: 13px;
            white-space: nowrap;
        }

        /* Multi-device */
        .multi-device {
            background: var(--bg-white);
        }
        .device-grid {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 16px;
        }
        .device-item {
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 20px 16px;
            text-align: center;
            transition: var(--transition);
        }
        .device-item:hover {
            background: var(--bg-white);
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }
        .device-item .device-icon {
            font-size: 28px;
            margin-bottom: 8px;
            color: var(--primary);
        }
        .device-item h3 {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 4px;
        }
        .device-item p {
            font-size: 12px;
            color: var(--text-muted);
            line-height: 1.5;
        }

        /* Guarantee */
        .guarantee-band {
            background: var(--primary-light);
            border-radius: var(--radius-lg);
            padding: 36px 32px;
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            align-items: start;
        }
        .guarantee-item {
            display: flex;
            align-items: flex-start;
            gap: 12px;
        }
        .guarantee-item .g-icon {
            font-size: 22px;
            color: var(--primary);
            flex-shrink: 0;
            margin-top: 2px;
        }
        .guarantee-item h3 {
            font-size: 15px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 4px;
        }
        .guarantee-item p {
            font-size: 13px;
            line-height: 1.7;
            color: var(--text-muted);
        }

        /* Brand intro */
        .brand-intro {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            padding: 40px;
            max-width: 900px;
            margin: 0 auto;
        }
        .brand-intro h2 {
            font-size: clamp(22px, 2.5vw, 26px);
            font-weight: 700;
            margin-bottom: 16px;
            text-align: center;
        }
        .brand-intro p {
            font-size: 16px;
            line-height: 2;
            color: var(--text-muted);
            text-align: justify;
        }

        /* FAQ */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 20px 24px;
            box-shadow: var(--shadow-sm);
        }
        .faq-item h3 {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 8px;
        }
        .faq-item p {
            font-size: 14px;
            line-height: 1.8;
            color: var(--text-muted);
        }

        /* CTA form */
        .cta-form-section {
            background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 60%, #2e9bd6 100%);
            color: #fff;
            border-radius: var(--radius-xl);
            overflow: hidden;
        }
        .cta-form-inner {
            padding: 56px 48px;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }
        .cta-form-content h2 {
            font-size: clamp(26px, 3vw, 32px);
            font-weight: 800;
            color: #fff;
            margin-bottom: 12px;
        }
        .cta-form-content p {
            font-size: 15px;
            line-height: 1.85;
            color: rgba(255, 255, 255, 0.85);
        }
        .cta-form {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            padding: 28px;
            box-shadow: var(--shadow-lg);
        }
        .cta-form h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 16px;
        }
        .cta-form .form-group {
            margin-bottom: 14px;
        }
        .cta-form label {
            display: block;
            font-size: 13px;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 6px;
        }
        .cta-form input,
        .cta-form select {
            width: 100%;
            padding: 10px 14px;
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            font-size: 14px;
            color: var(--text-main);
            background: var(--bg);
            transition: var(--transition);
            min-height: 44px;
        }
        .cta-form input:focus,
        .cta-form select:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(39, 133, 210, 0.15);
            background: #fff;
        }
        .cta-form .btn {
            width: 100%;
            justify-content: center;
            margin-top: 8px;
        }
        .cta-form .form-note {
            font-size: 12px;
            color: var(--text-muted);
            margin-top: 10px;
            text-align: center;
        }

        /* Client wall */
        .client-wall {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            justify-content: center;
        }
        .client-wall .client-badge {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: 24px;
            padding: 8px 20px;
            font-size: 13px;
            font-weight: 600;
            color: var(--text-muted);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
        }
        .client-wall .client-badge:hover {
            color: var(--primary);
            border-color: var(--primary);
            transform: translateY(-2px);
        }

        /* Footer */
        footer.site-footer {
            background: var(--text-main);
            color: rgba(255, 255, 255, 0.75);
            padding: 48px 0 24px;
            margin-top: 0;
        }
        .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;
            color: #fff;
            margin-bottom: 12px;
        }
        .footer-brand p {
            font-size: 13px;
            line-height: 1.75;
            opacity: 0.75;
            max-width: 320px;
        }
        .footer-col h4 {
            font-size: 14px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
            letter-spacing: 0.03em;
        }
        .footer-col a {
            display: block;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.7);
            padding: 5px 0;
            transition: var(--transition);
        }
        .footer-col a:hover {
            color: var(--accent);
            transform: translateX(3px);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            align-items: center;
            justify-content: space-between;
            font-size: 12px;
            opacity: 0.7;
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, 0.7);
            transition: var(--transition);
        }
        .footer-bottom a:hover {
            color: #fff;
        }
        .footer-bottom .divider {
            margin: 0 8px;
            opacity: 0.4;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            :root {
                --section-pad: 56px;
            }
            .grid-4 {
                grid-template-columns: repeat(2, 1fr);
            }
            .grid-5 {
                grid-template-columns: repeat(3, 1fr);
            }
            .scene-slider {
                grid-template-columns: repeat(2, 1fr);
            }
            .device-grid {
                grid-template-columns: repeat(3, 1fr);
            }
            .cta-form-inner {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .stats-band .container {
                grid-template-columns: repeat(2, 1fr);
            }
            .pain-grid {
                grid-template-columns: repeat(3, 1fr);
                gap: 16px;
            }
            .solution-block {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .hero {
                min-height: 520px;
                padding: 64px 0 80px;
            }
        }
        @media (max-width: 768px) {
            :root {
                --section-pad: 40px;
                --nav-height: 56px;
            }
            .main-nav {
                display: none;
            }
            .hamburger {
                display: flex;
            }
            .nav-cta {
                display: none;
            }
            .nav-right .lang-switcher {
                display: flex;
            }
            .grid-2,
            .grid-3,
            .grid-4,
            .grid-5 {
                grid-template-columns: 1fr;
            }
            .pain-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .scene-slider {
                grid-template-columns: 1fr;
            }
            .review-grid {
                grid-template-columns: 1fr;
            }
            .pricing-grid {
                grid-template-columns: 1fr;
            }
            .device-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 8px;
            }
            .hero {
                min-height: 440px;
                padding: 48px 0 60px;
            }
            .hero-content h1 {
                font-size: 28px;
            }
            .hero-content p {
                font-size: 15px;
            }
            .hero-actions {
                flex-direction: column;
            }
            .hero-actions .btn {
                width: 100%;
                justify-content: center;
            }
            .festival-campaign .festival-inner {
                grid-template-columns: 1fr;
                padding: 32px 24px;
            }
            .news-item {
                grid-template-columns: 1fr;
                gap: 8px;
            }
            .cta-form-inner {
                padding: 32px 24px;
            }
            .brand-intro {
                padding: 28px 24px;
            }
            .guarantee-band {
                grid-template-columns: 1fr;
                padding: 24px 20px;
            }
            .section-header {
                margin-bottom: 32px;
            }
        }
        @media (max-width: 480px) {
            :root {
                --section-pad: 32px;
            }
            .container {
                padding: 0 16px;
            }
            .hero {
                min-height: 400px;
                padding: 36px 0 48px;
            }
            .hero-content h1 {
                font-size: 24px;
            }
            .hero-content p {
                font-size: 14px;
            }
            .device-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .review-header {
                flex-direction: column;
                align-items: flex-start;
            }
            .hero-countdown {
                flex-wrap: wrap;
                gap: 8px;
                padding: 10px 14px;
                font-size: 12px;
            }
            .hero-countdown .cd-time {
                font-size: 18px;
                padding: 3px 8px;
                min-width: 36px;
            }
        }

/* roulang page: category1 */
:root {
            --primary: #2785D2;
            --primary-dark: #1a5f9e;
            --primary-light: #e8f2fb;
            --accent: #F28A4F;
            --accent-hover: #e0763a;
            --bg: #F5F8FC;
            --bg-white: #FFFFFF;
            --text-main: #1C2B3A;
            --text-muted: #5A6C7E;
            --border: #E4EDF5;
            --shadow-sm: 0 2px 8px rgba(25, 55, 85, 0.04);
            --shadow-md: 0 8px 24px rgba(25, 55, 85, 0.06);
            --shadow-lg: 0 16px 40px rgba(25, 55, 85, 0.1);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 24px;
            --container: 1200px;
            --section-pad: 72px;
            --nav-height: 64px;
            --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', 'Inter', 'Roboto', sans-serif;
            --transition: all 0.28s cubic-bezier(0.4, 0, 0.2, 1);
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.75;
            color: var(--text-main);
            background: var(--bg);
            min-height: 100vh;
        }
        img {
            max-width: 100%;
            height: auto;
            object-fit: cover;
            border-radius: var(--radius-md);
            display: block;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--primary-dark);
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            outline: none;
            border: none;
        }
        button {
            cursor: pointer;
            background: none;
        }
        .container {
            width: 100%;
            max-width: var(--container);
            margin: 0 auto;
            padding: 0 24px;
        }
        section {
            padding: var(--section-pad) 0;
        }
        .section-bg-white {
            background: var(--bg-white);
        }
        .section-bg-light {
            background: var(--bg);
        }
        .section-bg-dark {
            background: #1C2B3A;
            color: #fff;
        }
        .section-header {
            margin-bottom: 40px;
        }
        .section-header h2 {
            font-size: clamp(26px, 3.2vw, 32px);
            font-weight: 700;
            line-height: 1.35;
            color: var(--text-main);
            margin-bottom: 12px;
        }
        .section-header p {
            font-size: 16px;
            line-height: 1.85;
            color: var(--text-muted);
            max-width: 760px;
        }
        .section-bg-dark .section-header h2 {
            color: #fff;
        }
        .section-bg-dark .section-header p {
            color: rgba(255, 255, 255, 0.75);
        }
        .section-header .tag {
            display: inline-block;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 13px;
            font-weight: 600;
            padding: 4px 14px;
            border-radius: 20px;
            margin-bottom: 16px;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            min-height: 44px;
            padding: 10px 24px;
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-weight: 600;
            line-height: 1.4;
            transition: var(--transition);
            white-space: nowrap;
            border: 2px solid transparent;
        }
        .btn-primary {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            border-color: var(--primary-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
        }
        .btn-primary:active {
            transform: translateY(0);
            background: #164f82;
        }
        .btn-primary:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }
        .btn-accent {
            background: var(--accent);
            color: #fff;
            border-color: var(--accent);
        }
        .btn-accent:hover {
            background: var(--accent-hover);
            border-color: var(--accent-hover);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
        }
        .btn-accent:active {
            transform: translateY(0);
            background: #d9692c;
        }
        .btn-accent:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }
        .btn-outline {
            background: transparent;
            color: var(--primary);
            border-color: var(--primary);
        }
        .btn-outline:hover {
            background: var(--primary-light);
            color: var(--primary-dark);
            border-color: var(--primary);
            transform: translateY(-2px);
        }
        .btn-outline:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }
        .btn-outline-white {
            background: transparent;
            color: #fff;
            border-color: rgba(255, 255, 255, 0.7);
        }
        .btn-outline-white:hover {
            background: rgba(255, 255, 255, 0.15);
            color: #fff;
            border-color: #fff;
        }
        .btn-lg {
            min-height: 50px;
            padding: 14px 32px;
            font-size: 17px;
            border-radius: var(--radius-md);
        }
        .btn-sm {
            min-height: 36px;
            padding: 6px 16px;
            font-size: 13px;
            border-radius: 6px;
        }
        .badge {
            display: inline-block;
            padding: 3px 10px;
            border-radius: 12px;
            font-size: 12px;
            font-weight: 600;
            line-height: 1.4;
        }
        .badge-blue {
            background: var(--primary-light);
            color: var(--primary);
        }
        .badge-orange {
            background: #fff0e6;
            color: var(--accent-hover);
        }
        .badge-green {
            background: #e8f7ee;
            color: #2e7d4f;
        }
        .badge-live {
            background: #e53935;
            color: #fff;
            animation: livePulse 1.6s infinite;
        }
        @keyframes livePulse {
            0%,
            100% {
                opacity: 1;
            }
            50% {
                opacity: 0.75;
            }
        }

        /* Header / Nav */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: #fff;
            border-bottom: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            height: var(--nav-height);
            display: flex;
            align-items: center;
        }
        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
        }
        .logo {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-main);
            display: flex;
            align-items: center;
            gap: 8px;
            flex-shrink: 0;
        }
        .logo .logo-dot {
            width: 12px;
            height: 12px;
            background: var(--accent);
            border-radius: 50%;
            display: inline-block;
        }
        .logo span {
            color: var(--primary);
        }
        .logo:hover {
            color: var(--text-main);
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 4px;
            flex-wrap: wrap;
        }
        .main-nav a {
            display: inline-flex;
            align-items: center;
            padding: 8px 14px;
            border-radius: var(--radius-sm);
            font-size: 14px;
            font-weight: 500;
            color: var(--text-muted);
            transition: var(--transition);
            min-height: 40px;
        }
        .main-nav a:hover {
            color: var(--primary);
            background: var(--primary-light);
        }
        .main-nav a.active {
            color: var(--primary);
            background: var(--primary-light);
            font-weight: 600;
        }
        .nav-right {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }
        .lang-switch {
            display: inline-flex;
            align-items: center;
            border: 1px solid var(--border);
            border-radius: 20px;
            overflow: hidden;
            background: var(--bg);
        }
        .lang-switch button {
            padding: 6px 14px;
            font-size: 12px;
            font-weight: 600;
            color: var(--text-muted);
            transition: var(--transition);
            min-height: 40px;
            border-radius: 0;
        }
        .lang-switch button.active {
            background: var(--primary);
            color: #fff;
        }
        .lang-switch button:hover {
            color: var(--primary);
        }
        .lang-switch button.active:hover {
            color: #fff;
        }
        .hamburger {
            display: none;
            width: 44px;
            height: 44px;
            border-radius: var(--radius-sm);
            align-items: center;
            justify-content: center;
            flex-direction: column;
            gap: 4px;
            border: 1px solid var(--border);
            background: #fff;
        }
        .hamburger span {
            display: block;
            width: 20px;
            height: 2px;
            background: var(--text-main);
            border-radius: 2px;
            transition: var(--transition);
        }
        .hamburger.active span:nth-child(1) {
            transform: rotate(45deg) translate(4px, 4px);
        }
        .hamburger.active span:nth-child(2) {
            opacity: 0;
        }
        .hamburger.active span:nth-child(3) {
            transform: rotate(-45deg) translate(4px, -4px);
        }

        /* Breadcrumb / Category Header */
        .category-header {
            background: linear-gradient(180deg, #f0f6fc 0%, var(--bg) 100%);
            border-bottom: 1px solid var(--border);
            padding: 32px 0 40px;
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 24px;
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: var(--text-muted);
            font-weight: 500;
        }
        .breadcrumb a:hover {
            color: var(--primary);
        }
        .breadcrumb .sep {
            color: #b8c7d6;
        }
        .breadcrumb .current {
            color: var(--primary);
            font-weight: 600;
        }
        .category-header h1 {
            font-size: clamp(28px, 4vw, 40px);
            font-weight: 700;
            line-height: 1.3;
            color: var(--text-main);
            margin-bottom: 16px;
        }
        .category-header .cat-desc {
            font-size: 16px;
            line-height: 1.85;
            color: var(--text-muted);
            max-width: 800px;
        }

        /* Featured Live */
        .featured-live-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 32px;
            align-items: center;
        }
        .featured-img {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
            aspect-ratio: 16 / 10;
        }
        .featured-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 0;
        }
        .featured-img .overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(0, 0, 0, 0.1) 0%, rgba(0, 0, 0, 0.6) 100%);
            display: flex;
            flex-direction: column;
            justify-content: flex-end;
            padding: 24px;
        }
        .featured-img .overlay h3 {
            color: #fff;
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 4px;
        }
        .featured-img .overlay p {
            color: rgba(255, 255, 255, 0.8);
            font-size: 14px;
        }
        .featured-info h2 {
            font-size: clamp(22px, 2.8vw, 28px);
            font-weight: 700;
            line-height: 1.35;
            margin-bottom: 16px;
        }
        .featured-info p {
            color: var(--text-muted);
            font-size: 16px;
            line-height: 1.85;
            margin-bottom: 20px;
        }
        .countdown-bar {
            display: flex;
            align-items: center;
            gap: 16px;
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 16px 20px;
            box-shadow: var(--shadow-sm);
            margin-bottom: 20px;
            flex-wrap: wrap;
        }
        .countdown-bar .label {
            font-weight: 600;
            font-size: 14px;
            color: var(--text-main);
        }
        .countdown-digits {
            display: flex;
            gap: 8px;
        }
        .countdown-digits .digit {
            background: var(--primary);
            color: #fff;
            border-radius: 6px;
            padding: 4px 10px;
            font-weight: 700;
            font-size: 16px;
            min-width: 40px;
            text-align: center;
        }
        .countdown-digits .unit {
            font-size: 12px;
            color: var(--text-muted);
            align-self: center;
        }
        .featured-actions {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }

        /* Live List Cards */
        .live-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .live-card {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }
        .live-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
        }
        .live-card .card-img {
            aspect-ratio: 16 / 9;
            overflow: hidden;
            position: relative;
        }
        .live-card .card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 0;
            transition: var(--transition);
        }
        .live-card:hover .card-img img {
            transform: scale(1.03);
        }
        .live-card .card-img .live-badge {
            position: absolute;
            top: 12px;
            left: 12px;
        }
        .live-card .card-body {
            padding: 20px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }
        .live-card .card-body h3 {
            font-size: 18px;
            font-weight: 700;
            line-height: 1.4;
            margin-bottom: 8px;
        }
        .live-card .card-body .meta {
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 10px;
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
        }
        .live-card .card-body p {
            font-size: 14px;
            line-height: 1.7;
            color: var(--text-muted);
            margin-bottom: 16px;
            flex: 1;
        }
        .live-card .card-body .card-link {
            font-weight: 600;
            font-size: 14px;
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        /* Stats */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .stat-item {
            text-align: center;
            padding: 24px 16px;
            background: rgba(255, 255, 255, 0.06);
            border-radius: var(--radius-md);
            border: 1px solid rgba(255, 255, 255, 0.12);
        }
        .stat-item .stat-num {
            font-size: clamp(28px, 3vw, 36px);
            font-weight: 700;
            color: #fff;
            margin-bottom: 4px;
        }
        .stat-item .stat-label {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.7);
        }

        /* Guide / Article */
        .guide-content {
            max-width: 860px;
        }
        .guide-content h2 {
            font-size: clamp(24px, 2.8vw, 28px);
            font-weight: 700;
            margin-bottom: 20px;
            line-height: 1.4;
        }
        .guide-content h3 {
            font-size: 20px;
            font-weight: 700;
            margin-top: 28px;
            margin-bottom: 12px;
            line-height: 1.4;
        }
        .guide-content p {
            font-size: 15px;
            line-height: 1.9;
            color: var(--text-muted);
            margin-bottom: 16px;
        }
        .guide-content ul {
            list-style: none;
            padding: 0;
            margin-bottom: 16px;
        }
        .guide-content ul li {
            font-size: 15px;
            line-height: 1.9;
            color: var(--text-muted);
            padding-left: 24px;
            position: relative;
            margin-bottom: 8px;
        }
        .guide-content ul li::before {
            content: '';
            position: absolute;
            left: 0;
            top: 12px;
            width: 8px;
            height: 8px;
            background: var(--primary);
            border-radius: 50%;
        }

        /* League Topics */
        .league-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .league-topic {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 20px;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            display: flex;
            align-items: center;
            gap: 14px;
        }
        .league-topic:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }
        .league-topic .topic-icon {
            width: 44px;
            height: 44px;
            border-radius: var(--radius-sm);
            background: var(--primary-light);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 18px;
            color: var(--primary);
            flex-shrink: 0;
        }
        .league-topic .topic-info h4 {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 2px;
        }
        .league-topic .topic-info p {
            font-size: 13px;
            color: var(--text-muted);
        }

        /* FAQ */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            margin-bottom: 12px;
            overflow: hidden;
            box-shadow: var(--shadow-sm);
        }
        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 20px 24px;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-main);
            text-align: left;
            gap: 16px;
            background: none;
            min-height: 44px;
        }
        .faq-question:hover {
            color: var(--primary);
        }
        .faq-question .faq-icon {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--primary-light);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            transition: var(--transition);
            font-weight: 700;
            color: var(--primary);
            font-size: 16px;
        }
        .faq-item.open .faq-icon {
            transform: rotate(45deg);
        }
        .faq-answer {
            padding: 0 24px 20px;
            font-size: 14px;
            line-height: 1.85;
            color: var(--text-muted);
            display: none;
        }
        .faq-item.open .faq-answer {
            display: block;
        }

        /* CTA */
        .cta-box {
            background: linear-gradient(135deg, #2778b8 0%, #1a5f9e 100%);
            border-radius: var(--radius-xl);
            padding: 48px 40px;
            text-align: center;
            color: #fff;
            box-shadow: var(--shadow-lg);
        }
        .cta-box h2 {
            font-size: clamp(24px, 3vw, 30px);
            font-weight: 700;
            margin-bottom: 12px;
        }
        .cta-box p {
            font-size: 16px;
            line-height: 1.85;
            color: rgba(255, 255, 255, 0.8);
            max-width: 600px;
            margin: 0 auto 24px;
        }
        .cta-box .btn-outline-white {
            border-color: rgba(255, 255, 255, 0.6);
        }

        /* Footer */
        .site-footer {
            background: #1C2B3A;
            color: #fff;
            padding: 48px 0 24px;
            margin-top: 0;
        }
        .site-footer a {
            color: rgba(255, 255, 255, 0.7);
            font-size: 14px;
        }
        .site-footer a:hover {
            color: #fff;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 32px;
        }
        .footer-brand h3 {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 12px;
            color: #fff;
        }
        .footer-brand p {
            font-size: 14px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.65);
            max-width: 320px;
        }
        .footer-col h4 {
            font-size: 15px;
            font-weight: 600;
            margin-bottom: 12px;
            color: #fff;
        }
        .footer-col a {
            display: block;
            padding: 4px 0;
            font-size: 13px;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            padding-top: 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            flex-wrap: wrap;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.55);
        }
        .footer-bottom .divider {
            margin: 0 8px;
            color: rgba(255, 255, 255, 0.25);
        }
        .footer-bottom a {
            font-size: 13px;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .live-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .league-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .featured-live-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 768px) {
            :root {
                --section-pad: 40px;
                --nav-height: 56px;
            }
            .hamburger {
                display: flex;
            }
            .main-nav {
                display: none;
                position: absolute;
                top: var(--nav-height);
                left: 0;
                right: 0;
                background: #fff;
                border-bottom: 1px solid var(--border);
                padding: 12px 20px;
                flex-direction: column;
                align-items: stretch;
                gap: 4px;
                box-shadow: var(--shadow-md);
            }
            .main-nav.open {
                display: flex;
            }
            .main-nav a {
                padding: 12px 14px;
                font-size: 15px;
                width: 100%;
                justify-content: flex-start;
            }
            .nav-right .lang-switch {
                display: none;
            }
            .nav-right .lang-switch.mobile-show {
                display: inline-flex;
            }
            .site-header .container {
                gap: 8px;
            }
            .live-grid {
                grid-template-columns: 1fr;
            }
            .league-grid {
                grid-template-columns: 1fr 1fr;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .featured-live-grid {
                gap: 20px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .cta-box {
                padding: 32px 20px;
            }
            .category-header {
                padding: 20px 0 28px;
            }
        }
        @media (max-width: 520px) {
            :root {
                --section-pad: 32px;
            }
            .container {
                padding: 0 16px;
            }
            .league-grid {
                grid-template-columns: 1fr;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .stat-item {
                padding: 16px 12px;
            }
            .stat-item .stat-num {
                font-size: 24px;
            }
            .logo {
                font-size: 17px;
            }
            .category-header h1 {
                font-size: 24px;
            }
            .featured-actions {
                flex-direction: column;
                width: 100%;
            }
            .featured-actions .btn {
                width: 100%;
            }
            .live-card .card-body h3 {
                font-size: 16px;
            }
        }

/* roulang page: category3 */
:root {
            --primary: #2785D2;
            --primary-dark: #1a5f9e;
            --primary-light: #e8f2fb;
            --accent: #F28A4F;
            --accent-hover: #e0763a;
            --bg: #F5F8FC;
            --bg-white: #FFFFFF;
            --text-main: #1C2B3A;
            --text-muted: #5A6C7E;
            --border: #E4EDF5;
            --shadow-sm: 0 2px 8px rgba(25, 55, 85, 0.04);
            --shadow-md: 0 8px 24px rgba(25, 55, 85, 0.06);
            --shadow-lg: 0 16px 40px rgba(25, 55, 85, 0.1);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 24px;
            --container: 1200px;
            --section-pad: 72px;
            --nav-height: 64px;
            --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', 'Inter', 'Roboto', sans-serif;
            --transition: all 0.28s cubic-bezier(0.4, 0, 0.2, 1);
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.75;
            color: var(--text-main);
            background: var(--bg);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }
        img {
            max-width: 100%;
            height: auto;
            object-fit: cover;
            border-radius: var(--radius-md);
            display: block;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--primary-dark);
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            outline: none;
            border: none;
        }
        button {
            cursor: pointer;
            background: none;
        }
        ul,
        ol {
            list-style: none;
        }
        .container {
            width: 100%;
            max-width: var(--container);
            margin: 0 auto;
            padding: 0 24px;
        }
        section {
            padding: var(--section-pad) 0;
        }
        .section-bg-white {
            background: var(--bg-white);
        }
        .section-bg-light {
            background: var(--bg);
        }
        .section-header {
            margin-bottom: 48px;
        }
        .section-header h2 {
            font-size: clamp(26px, 3.2vw, 32px);
            font-weight: 700;
            line-height: 1.35;
            color: var(--text-main);
            margin-bottom: 12px;
        }
        .section-header p {
            font-size: 16px;
            line-height: 1.85;
            color: var(--text-muted);
            max-width: 720px;
        }
        .section-header .tag {
            display: inline-block;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 13px;
            font-weight: 600;
            padding: 4px 14px;
            border-radius: 20px;
            margin-bottom: 16px;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            min-height: 44px;
            padding: 10px 24px;
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-weight: 600;
            line-height: 1.4;
            transition: var(--transition);
            white-space: nowrap;
            border: 2px solid transparent;
        }
        .btn-primary {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            border-color: var(--primary-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
        }
        .btn-primary:active {
            transform: translateY(0);
            background: #164f82;
        }
        .btn-primary:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }
        .btn-accent {
            background: var(--accent);
            color: #fff;
            border-color: var(--accent);
        }
        .btn-accent:hover {
            background: var(--accent-hover);
            border-color: var(--accent-hover);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
        }
        .btn-accent:active {
            transform: translateY(0);
            background: #d9692c;
        }
        .btn-accent:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }
        .btn-outline {
            background: transparent;
            color: var(--primary);
            border-color: var(--primary);
        }
        .btn-outline:hover {
            background: var(--primary-light);
            color: var(--primary-dark);
            border-color: var(--primary);
            transform: translateY(-2px);
        }
        .btn-outline:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }
        .btn-lg {
            min-height: 50px;
            padding: 14px 32px;
            font-size: 17px;
            border-radius: var(--radius-md);
        }
        .btn-sm {
            min-height: 36px;
            padding: 6px 16px;
            font-size: 13px;
            border-radius: 6px;
        }
        .badge {
            display: inline-block;
            padding: 3px 10px;
            border-radius: 12px;
            font-size: 12px;
            font-weight: 600;
            line-height: 1.4;
        }
        .badge-blue {
            background: var(--primary-light);
            color: var(--primary);
        }
        .badge-orange {
            background: #fef0e7;
            color: var(--accent);
        }
        .badge-green {
            background: #e8f7ee;
            color: #2e9b5e;
        }
        .badge-gray {
            background: #f0f4f8;
            color: var(--text-muted);
        }

        /* Header / Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: var(--bg-white);
            border-bottom: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            height: var(--nav-height);
            display: flex;
            align-items: center;
        }
        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
        }
        .logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 22px;
            font-weight: 700;
            color: var(--text-main);
            line-height: 1;
            white-space: nowrap;
        }
        .logo:hover {
            color: var(--primary);
        }
        .logo-icon {
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            border-radius: 10px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            color: #fff;
            font-weight: 700;
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 4px;
        }
        .main-nav a {
            display: inline-flex;
            align-items: center;
            padding: 8px 16px;
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-weight: 500;
            color: var(--text-main);
            white-space: nowrap;
            transition: var(--transition);
        }
        .main-nav a:hover {
            background: var(--primary-light);
            color: var(--primary);
        }
        .main-nav a.active {
            background: var(--primary);
            color: #fff;
            font-weight: 600;
        }
        .nav-right {
            display: flex;
            align-items: center;
            gap: 14px;
        }
        .lang-switch {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: 20px;
            padding: 4px;
        }
        .lang-switch button {
            min-height: 32px;
            padding: 0 14px;
            border-radius: 16px;
            font-size: 13px;
            font-weight: 500;
            color: var(--text-muted);
            transition: var(--transition);
            white-space: nowrap;
        }
        .lang-switch button:hover {
            color: var(--text-main);
        }
        .lang-switch button.active {
            background: var(--bg-white);
            color: var(--primary);
            font-weight: 600;
            box-shadow: var(--shadow-sm);
        }
        .hamburger {
            display: none;
            width: 44px;
            height: 44px;
            border-radius: var(--radius-sm);
            align-items: center;
            justify-content: center;
            flex-direction: column;
            gap: 5px;
            border: 1px solid var(--border);
            background: var(--bg-white);
        }
        .hamburger span {
            display: block;
            width: 20px;
            height: 2px;
            background: var(--text-main);
            border-radius: 2px;
            transition: var(--transition);
        }
        .hamburger:hover {
            background: var(--primary-light);
        }

        /* Mobile nav */
        .mobile-nav {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(28, 43, 58, 0.5);
            z-index: 2000;
            opacity: 0;
            pointer-events: none;
            transition: opacity 0.3s ease;
        }
        .mobile-nav.open {
            opacity: 1;
            pointer-events: auto;
        }
        .mobile-nav-panel {
            position: absolute;
            top: 0;
            left: 0;
            bottom: 0;
            width: 280px;
            max-width: 85vw;
            background: var(--bg-white);
            padding: 24px 20px;
            overflow-y: auto;
            transform: translateX(-100%);
            transition: transform 0.32s cubic-bezier(0.4, 0, 0.2, 1);
            box-shadow: var(--shadow-lg);
        }
        .mobile-nav.open .mobile-nav-panel {
            transform: translateX(0);
        }
        .mobile-nav-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 20px;
        }
        .mobile-nav-close {
            width: 40px;
            height: 40px;
            border-radius: var(--radius-sm);
            border: 1px solid var(--border);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            color: var(--text-main);
            transition: var(--transition);
        }
        .mobile-nav-close:hover {
            background: var(--primary-light);
            color: var(--primary);
        }
        .mobile-nav-list {
            display: flex;
            flex-direction: column;
            gap: 4px;
            margin-bottom: 20px;
        }
        .mobile-nav-list a {
            display: block;
            padding: 12px 16px;
            border-radius: var(--radius-sm);
            font-size: 16px;
            font-weight: 500;
            color: var(--text-main);
            transition: var(--transition);
        }
        .mobile-nav-list a:hover {
            background: var(--primary-light);
            color: var(--primary);
        }
        .mobile-nav-list a.active {
            background: var(--primary);
            color: #fff;
        }
        .mobile-lang {
            display: flex;
            gap: 8px;
            padding-top: 16px;
            border-top: 1px solid var(--border);
        }
        .mobile-lang button {
            flex: 1;
            min-height: 40px;
            border-radius: var(--radius-sm);
            border: 1px solid var(--border);
            font-size: 14px;
            font-weight: 500;
            color: var(--text-muted);
            transition: var(--transition);
        }
        .mobile-lang button.active {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }

        /* Breadcrumb */
        .breadcrumb-section {
            background: var(--bg-white);
            border-bottom: 1px solid var(--border);
            padding: 16px 0;
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--text-muted);
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: var(--text-muted);
            transition: var(--transition);
        }
        .breadcrumb a:hover {
            color: var(--primary);
        }
        .breadcrumb span.sep {
            color: #b8c8d8;
            user-select: none;
        }
        .breadcrumb span.current {
            color: var(--primary);
            font-weight: 600;
        }

        /* Category header */
        .category-header {
            background: var(--bg-white);
            padding: 48px 0 40px;
            border-bottom: 1px solid var(--border);
        }
        .category-header .container {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .category-header h1 {
            font-size: clamp(32px, 4vw, 44px);
            font-weight: 700;
            line-height: 1.3;
            color: var(--text-main);
            letter-spacing: -0.01em;
        }
        .category-header .subtitle {
            font-size: 17px;
            line-height: 1.85;
            color: var(--text-muted);
            max-width: 800px;
        }
        .category-header .meta-info {
            display: flex;
            gap: 20px;
            flex-wrap: wrap;
            font-size: 13px;
            color: var(--text-muted);
        }
        .category-header .meta-info span {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .category-header .meta-info .dot {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--accent);
        }

        /* Training list cards */
        .training-list-section {
            background: var(--bg);
        }
        .training-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
            margin-top: 40px;
        }
        .training-card {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }
        .training-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
        }
        .training-card-img {
            width: 100%;
            height: 200px;
            overflow: hidden;
            border-radius: 0;
            background: #dce6ef;
        }
        .training-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 0;
            transition: transform 0.5s ease;
        }
        .training-card:hover .training-card-img img {
            transform: scale(1.05);
        }
        .training-card-body {
            padding: 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .training-card-body .card-tags {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
        }
        .training-card-body h3 {
            font-size: 19px;
            font-weight: 700;
            line-height: 1.45;
            color: var(--text-main);
            margin: 0;
        }
        .training-card-body .card-desc {
            font-size: 14px;
            line-height: 1.8;
            color: var(--text-muted);
            flex: 1;
        }
        .training-card-body .card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 13px;
            color: var(--text-muted);
            padding-top: 12px;
            border-top: 1px solid var(--border);
        }
        .training-card-body .card-meta .date {
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }
        .training-card-body .card-link {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            transition: var(--transition);
        }
        .training-card-body .card-link:hover {
            color: var(--primary-dark);
            gap: 8px;
        }

        /* Deep content */
        .deep-content-section {
            background: var(--bg-white);
        }
        .deep-content-wrapper {
            max-width: 850px;
            margin: 0 auto;
        }
        .deep-content-wrapper h2 {
            font-size: clamp(24px, 3vw, 30px);
            font-weight: 700;
            line-height: 1.4;
            color: var(--text-main);
            margin-bottom: 24px;
        }
        .deep-content-wrapper h3 {
            font-size: 20px;
            font-weight: 700;
            line-height: 1.5;
            color: var(--text-main);
            margin: 32px 0 16px;
        }
        .deep-content-wrapper p {
            font-size: 16px;
            line-height: 1.9;
            color: var(--text-main);
            margin-bottom: 20px;
            text-align: justify;
        }
        .deep-content-wrapper p.muted {
            color: var(--text-muted);
        }
        .deep-content-wrapper blockquote {
            border-left: 4px solid var(--primary);
            background: var(--primary-light);
            padding: 20px 24px;
            border-radius: 0 var(--radius-md) var(--radius-md) 0;
            font-size: 15px;
            line-height: 1.85;
            color: var(--text-main);
            margin: 24px 0;
        }

        /* Stats */
        .stats-section {
            background: var(--primary);
            position: relative;
            overflow: hidden;
        }
        .stats-section::before {
            content: '';
            position: absolute;
            top: -60%;
            right: -20%;
            width: 500px;
            height: 500px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.04);
            pointer-events: none;
        }
        .stats-section::after {
            content: '';
            position: absolute;
            bottom: -40%;
            left: -10%;
            width: 400px;
            height: 400px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.03);
            pointer-events: none;
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
            position: relative;
            z-index: 1;
        }
        .stat-item {
            text-align: center;
            color: #fff;
        }
        .stat-item .stat-number {
            font-size: clamp(36px, 4vw, 48px);
            font-weight: 700;
            line-height: 1.2;
            letter-spacing: -0.02em;
            margin-bottom: 8px;
        }
        .stat-item .stat-label {
            font-size: 15px;
            line-height: 1.6;
            color: rgba(255, 255, 255, 0.85);
        }

        /* Special topics */
        .topics-section {
            background: var(--bg);
        }
        .topics-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 28px;
            margin-top: 40px;
        }
        .topic-card {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 28px;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            display: flex;
            flex-direction: column;
            gap: 14px;
        }
        .topic-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }
        .topic-card .topic-icon {
            width: 48px;
            height: 48px;
            border-radius: var(--radius-md);
            background: var(--primary-light);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            font-weight: 700;
            color: var(--primary);
        }
        .topic-card h3 {
            font-size: 19px;
            font-weight: 700;
            line-height: 1.45;
            color: var(--text-main);
        }
        .topic-card p {
            font-size: 14px;
            line-height: 1.8;
            color: var(--text-muted);
        }
        .topic-card .topic-tags {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
            margin-top: auto;
            padding-top: 12px;
        }

        /* Schedule/Rules section */
        .rules-section {
            background: var(--bg-white);
        }
        .rules-wrapper {
            max-width: 850px;
            margin: 0 auto;
        }
        .rules-wrapper h2 {
            font-size: clamp(24px, 3vw, 30px);
            font-weight: 700;
            line-height: 1.4;
            color: var(--text-main);
            margin-bottom: 24px;
        }
        .rules-card {
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 28px 32px;
            margin-bottom: 20px;
            transition: var(--transition);
        }
        .rules-card:hover {
            box-shadow: var(--shadow-sm);
            border-color: #d0dfee;
        }
        .rules-card h3 {
            font-size: 18px;
            font-weight: 700;
            line-height: 1.5;
            color: var(--text-main);
            margin-bottom: 10px;
        }
        .rules-card p {
            font-size: 15px;
            line-height: 1.85;
            color: var(--text-muted);
        }
        .rules-card .rule-step {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            font-size: 14px;
            font-weight: 700;
            margin-right: 10px;
            flex-shrink: 0;
        }

        /* FAQ */
        .faq-section {
            background: var(--bg);
        }
        .faq-list {
            max-width: 850px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 14px;
        }
        .faq-item {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
        }
        .faq-item:hover {
            box-shadow: var(--shadow-md);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 18px 24px;
            cursor: pointer;
            transition: var(--transition);
            text-align: left;
            width: 100%;
            min-height: 44px;
        }
        .faq-question:hover {
            background: var(--primary-light);
        }
        .faq-question h3 {
            font-size: 16px;
            font-weight: 700;
            line-height: 1.5;
            color: var(--text-main);
            margin: 0;
            flex: 1;
        }
        .faq-icon {
            width: 24px;
            height: 24px;
            border-radius: 50%;
            background: var(--bg);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            font-weight: 700;
            color: var(--primary);
            transition: var(--transition);
            flex-shrink: 0;
        }
        .faq-item.open .faq-icon {
            transform: rotate(45deg);
            background: var(--primary);
            color: #fff;
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s cubic-bezier(0.4, 0, 0.2, 1), padding 0.35s ease;
            padding: 0 24px;
        }
        .faq-item.open .faq-answer {
            max-height: 400px;
            padding: 0 24px 18px;
        }
        .faq-answer p {
            font-size: 15px;
            line-height: 1.85;
            color: var(--text-muted);
        }

        /* CTA section */
        .cta-section {
            background: var(--bg-white);
            padding: 64px 0;
        }
        .cta-box {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            border-radius: var(--radius-xl);
            padding: 56px 48px;
            text-align: center;
            color: #fff;
            position: relative;
            overflow: hidden;
        }
        .cta-box::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -20%;
            width: 400px;
            height: 400px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.06);
            pointer-events: none;
        }
        .cta-box::after {
            content: '';
            position: absolute;
            bottom: -40%;
            left: -10%;
            width: 350px;
            height: 350px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.04);
            pointer-events: none;
        }
        .cta-box h2 {
            font-size: clamp(26px, 3.5vw, 36px);
            font-weight: 700;
            line-height: 1.35;
            margin-bottom: 16px;
            position: relative;
            z-index: 1;
        }
        .cta-box p {
            font-size: 16px;
            line-height: 1.85;
            color: rgba(255, 255, 255, 0.88);
            max-width: 560px;
            margin: 0 auto 28px;
            position: relative;
            z-index: 1;
        }
        .cta-box .cta-actions {
            display: flex;
            gap: 16px;
            justify-content: center;
            flex-wrap: wrap;
            position: relative;
            z-index: 1;
        }
        .btn-white {
            background: #fff;
            color: var(--primary-dark);
            border-color: #fff;
        }
        .btn-white:hover {
            background: rgba(255, 255, 255, 0.9);
            color: var(--primary-dark);
            border-color: rgba(255, 255, 255, 0.9);
            transform: translateY(-2px);
            box-shadow: var(--shadow-lg);
        }
        .btn-outline-white-cta {
            background: transparent;
            color: #fff;
            border-color: rgba(255, 255, 255, 0.6);
        }
        .btn-outline-white-cta:hover {
            background: rgba(255, 255, 255, 0.12);
            color: #fff;
            border-color: #fff;
            transform: translateY(-2px);
        }

        /* Footer */
        .site-footer {
            background: #162535;
            color: rgba(255, 255, 255, 0.8);
            padding: 56px 0 24px;
            margin-top: auto;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-brand h3 {
            font-size: 20px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
        }
        .footer-brand p {
            font-size: 14px;
            line-height: 1.85;
            color: rgba(255, 255, 255, 0.7);
            max-width: 300px;
        }
        .footer-col h4 {
            font-size: 15px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
        }
        .footer-col a {
            display: block;
            font-size: 14px;
            line-height: 2.2;
            color: rgba(255, 255, 255, 0.7);
            transition: var(--transition);
        }
        .footer-col a:hover {
            color: #fff;
            padding-left: 4px;
        }
        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 16px;
            padding-top: 24px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            font-size: 13px;
            color: rgba(255, 255, 255, 0.6);
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, 0.6);
            transition: var(--transition);
        }
        .footer-bottom a:hover {
            color: #fff;
        }
        .footer-bottom .divider {
            margin: 0 10px;
            color: rgba(255, 255, 255, 0.3);
        }

        /* Responsive */
        @media (max-width: 1024px) {
            :root {
                --section-pad: 56px;
            }
            .training-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 24px;
            }
            .topics-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
        }
        @media (max-width: 768px) {
            :root {
                --section-pad: 40px;
                --nav-height: 56px;
            }
            .main-nav {
                display: none;
            }
            .hamburger {
                display: flex;
            }
            .mobile-nav {
                display: block;
            }
            .lang-switch {
                display: none;
            }
            .training-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .topics-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }
            .stat-item .stat-number {
                font-size: 32px;
            }
            .category-header {
                padding: 32px 0 28px;
            }
            .category-header h1 {
                font-size: 28px;
            }
            .cta-box {
                padding: 40px 24px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                text-align: left;
            }
        }
        @media (max-width: 520px) {
            :root {
                --section-pad: 32px;
            }
            .container {
                padding: 0 16px;
            }
            .section-header {
                margin-bottom: 32px;
            }
            .section-header h2 {
                font-size: 22px;
            }
            .training-card-img {
                height: 180px;
            }
            .training-card-body {
                padding: 18px;
            }
            .rules-card {
                padding: 20px;
            }
            .faq-question {
                padding: 14px 16px;
            }
            .faq-answer {
                padding: 0 16px;
            }
            .faq-item.open .faq-answer {
                padding: 0 16px 14px;
            }
            .stat-item .stat-number {
                font-size: 28px;
            }
            .stats-grid {
                gap: 16px;
            }
            .cta-box h2 {
                font-size: 22px;
            }
            .cta-box p {
                font-size: 15px;
            }
        }

/* roulang page: category2 */
:root {
            --primary: #2785D2;
            --primary-dark: #1a5f9e;
            --primary-light: #e8f2fb;
            --accent: #F28A4F;
            --accent-hover: #e0763a;
            --bg: #F5F8FC;
            --bg-white: #FFFFFF;
            --text-main: #1C2B3A;
            --text-muted: #5A6C7E;
            --border: #E4EDF5;
            --shadow-sm: 0 2px 8px rgba(25, 55, 85, 0.04);
            --shadow-md: 0 8px 24px rgba(25, 55, 85, 0.06);
            --shadow-lg: 0 16px 40px rgba(25, 55, 85, 0.1);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 24px;
            --container: 1200px;
            --section-pad: 72px;
            --nav-height: 64px;
            --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', 'Inter', 'Roboto', sans-serif;
            --transition: all 0.28s cubic-bezier(0.4, 0, 0.2, 1);
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.75;
            color: var(--text-main);
            background: var(--bg);
            min-height: 100vh;
            overflow-x: hidden;
        }
        img {
            max-width: 100%;
            height: auto;
            object-fit: cover;
            border-radius: var(--radius-md);
            display: block;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--primary-dark);
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            outline: none;
            border: none;
        }
        button {
            cursor: pointer;
            background: none;
        }
        .container {
            width: 100%;
            max-width: var(--container);
            margin: 0 auto;
            padding: 0 24px;
        }
        section {
            padding: var(--section-pad) 0;
        }
        .section-bg-white {
            background: var(--bg-white);
        }
        .section-bg-light {
            background: var(--bg);
        }
        .section-header {
            margin-bottom: 48px;
        }
        .section-header h2 {
            font-size: clamp(26px, 3.2vw, 32px);
            font-weight: 700;
            line-height: 1.35;
            color: var(--text-main);
            margin-bottom: 12px;
        }
        .section-header p {
            font-size: 16px;
            line-height: 1.85;
            color: var(--text-muted);
            max-width: 720px;
            margin-bottom: 0;
        }
        .section-header .tag {
            display: inline-block;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 13px;
            font-weight: 600;
            padding: 4px 14px;
            border-radius: 20px;
            margin-bottom: 16px;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            min-height: 44px;
            padding: 10px 24px;
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-weight: 600;
            line-height: 1.4;
            transition: var(--transition);
            white-space: nowrap;
            border: 2px solid transparent;
        }
        .btn-primary {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            border-color: var(--primary-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
        }
        .btn-primary:active {
            transform: translateY(0);
            background: #164f82;
        }
        .btn-primary:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }
        .btn-accent {
            background: var(--accent);
            color: #fff;
            border-color: var(--accent);
        }
        .btn-accent:hover {
            background: var(--accent-hover);
            border-color: var(--accent-hover);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
        }
        .btn-accent:active {
            transform: translateY(0);
            background: #d9692c;
        }
        .btn-accent:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }
        .btn-outline {
            background: transparent;
            color: var(--primary);
            border-color: var(--primary);
        }
        .btn-outline:hover {
            background: var(--primary-light);
            color: var(--primary-dark);
            border-color: var(--primary);
            transform: translateY(-2px);
        }
        .btn-outline:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }
        .btn-outline-white {
            background: transparent;
            color: #fff;
            border-color: rgba(255, 255, 255, 0.7);
        }
        .btn-outline-white:hover {
            background: rgba(255, 255, 255, 0.15);
            color: #fff;
            border-color: #fff;
        }
        .btn-lg {
            min-height: 50px;
            padding: 14px 32px;
            font-size: 17px;
            border-radius: var(--radius-md);
        }
        .btn-sm {
            min-height: 36px;
            padding: 6px 16px;
            font-size: 13px;
            border-radius: 6px;
        }
        .badge {
            display: inline-block;
            padding: 3px 10px;
            border-radius: 12px;
            font-size: 12px;
            font-weight: 600;
            line-height: 1.4;
            background: var(--primary-light);
            color: var(--primary);
        }
        .badge-accent {
            background: #fef0e7;
            color: var(--accent);
        }
        .badge-outline {
            background: transparent;
            border: 1px solid var(--primary);
            color: var(--primary);
        }

        /* Header & Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
            min-height: var(--nav-height);
        }
        .site-header .navbar {
            min-height: var(--nav-height);
            padding: 0;
        }
        .site-header .navbar-brand {
            font-size: 20px;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: 0.5px;
            display: flex;
            align-items: center;
            gap: 8px;
            min-height: 44px;
        }
        .site-header .navbar-brand:hover {
            color: var(--primary-dark);
        }
        .site-header .navbar-brand .logo-icon {
            width: 36px;
            height: 36px;
            background: var(--primary);
            border-radius: 10px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 16px;
            flex-shrink: 0;
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 4px;
        }
        .main-nav a {
            color: var(--text-muted);
            font-size: 15px;
            font-weight: 500;
            padding: 8px 16px;
            border-radius: 8px;
            min-height: 44px;
            display: flex;
            align-items: center;
            transition: var(--transition);
            white-space: nowrap;
        }
        .main-nav a:hover {
            color: var(--primary);
            background: var(--primary-light);
        }
        .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);
            border-radius: 20px;
            padding: 3px;
            margin-left: 12px;
            border: 1px solid var(--border);
            flex-shrink: 0;
        }
        .lang-switch button {
            min-height: 36px;
            min-width: 44px;
            padding: 4px 12px;
            border-radius: 16px;
            font-size: 13px;
            font-weight: 500;
            color: var(--text-muted);
            transition: var(--transition);
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .lang-switch button.active {
            background: var(--primary);
            color: #fff;
            font-weight: 600;
        }
        .lang-switch button:hover:not(.active) {
            color: var(--primary);
        }
        .navbar-toggler {
            border: 1px solid var(--border);
            border-radius: 8px;
            min-width: 44px;
            min-height: 44px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-main);
            background: var(--bg-white);
        }
        .navbar-toggler:focus {
            box-shadow: 0 0 0 2px var(--primary);
            outline: none;
        }

        /* Category Hero */
        .category-hero {
            background: linear-gradient(135deg, #f0f7fe 0%, #ffffff 65%);
            padding: 56px 0 48px;
            border-bottom: 1px solid var(--border);
            overflow: hidden;
            position: relative;
        }
        .category-hero::before {
            content: '';
            position: absolute;
            top: -120px;
            right: -80px;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(39, 133, 210, 0.06) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .category-hero .tag-breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 20px;
            flex-wrap: wrap;
        }
        .category-hero .tag-breadcrumb a {
            color: var(--text-muted);
        }
        .category-hero .tag-breadcrumb a:hover {
            color: var(--primary);
        }
        .category-hero h1 {
            font-size: clamp(32px, 4.5vw, 42px);
            font-weight: 700;
            line-height: 1.25;
            color: var(--text-main);
            margin-bottom: 16px;
        }
        .category-hero .hero-desc {
            font-size: 17px;
            line-height: 1.85;
            color: var(--text-muted);
            max-width: 680px;
            margin-bottom: 28px;
        }
        .hero-data-panel {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-md);
            padding: 24px;
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            align-items: center;
            justify-content: space-around;
        }
        .hero-data-panel .data-item {
            text-align: center;
            min-width: 90px;
        }
        .hero-data-panel .data-item .num {
            font-size: 28px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.2;
        }
        .hero-data-panel .data-item .label {
            font-size: 13px;
            color: var(--text-muted);
            margin-top: 4px;
        }

        /* Stats Bar */
        .stats-bar {
            background: var(--primary);
            padding: 28px 0;
        }
        .stats-bar .stat-item {
            text-align: center;
            padding: 8px 16px;
        }
        .stats-bar .stat-item .num {
            font-size: 32px;
            font-weight: 700;
            color: #fff;
            line-height: 1.2;
        }
        .stats-bar .stat-item .label {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.85);
            margin-top: 4px;
        }

        /* League Cards */
        .league-card {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .league-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
            border-color: rgba(39, 133, 210, 0.3);
        }
        .league-card .league-img {
            aspect-ratio: 16/9;
            overflow: hidden;
            position: relative;
            background: #e8eef5;
        }
        .league-card .league-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 0;
            transition: transform 0.4s ease;
        }
        .league-card:hover .league-img img {
            transform: scale(1.04);
        }
        .league-card .league-img .tag-overlay {
            position: absolute;
            top: 12px;
            left: 12px;
            display: flex;
            gap: 6px;
            flex-wrap: wrap;
        }
        .league-card .card-body {
            padding: 20px 20px 18px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .league-card .card-body h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .league-card .card-body .summary {
            font-size: 14px;
            line-height: 1.75;
            color: var(--text-muted);
            margin-bottom: 14px;
            flex: 1;
        }
        .league-card .card-body .meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 13px;
            color: var(--text-muted);
            border-top: 1px solid var(--border);
            padding-top: 12px;
        }
        .league-card .card-body .meta .date {
            display: flex;
            align-items: center;
            gap: 4px;
        }
        .league-card .card-body .meta a {
            font-weight: 600;
            font-size: 13px;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 4px;
            min-height: 36px;
            padding: 4px 8px;
        }
        .league-card .card-body .meta a:hover {
            color: var(--primary-dark);
        }

        /* Deep Article */
        .deep-article {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            padding: 32px;
        }
        .deep-article h3 {
            font-size: 22px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 16px;
            line-height: 1.4;
        }
        .deep-article p {
            font-size: 15px;
            line-height: 1.9;
            color: var(--text-muted);
            margin-bottom: 14px;
        }
        .deep-article p:last-child {
            margin-bottom: 0;
        }
        .deep-article .article-img {
            margin: 20px 0;
            border-radius: var(--radius-md);
            overflow: hidden;
        }
        .deep-article .article-img img {
            width: 100%;
            height: auto;
            object-fit: cover;
            border-radius: var(--radius-md);
        }

        /* Standings Preview */
        .standings-table {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
        }
        .standings-table .table {
            margin-bottom: 0;
            font-size: 14px;
        }
        .standings-table .table thead th {
            background: var(--primary-light);
            color: var(--primary-dark);
            font-weight: 600;
            font-size: 13px;
            border-bottom: 1px solid var(--border);
            padding: 12px 16px;
            white-space: nowrap;
        }
        .standings-table .table tbody td {
            padding: 12px 16px;
            border-bottom: 1px solid var(--border);
            color: var(--text-main);
            vertical-align: middle;
        }
        .standings-table .table tbody tr:last-child td {
            border-bottom: none;
        }
        .standings-table .table tbody tr:hover {
            background: #f8fbfe;
        }
        .standings-table .rank-badge {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            font-weight: 700;
            font-size: 13px;
            background: var(--bg);
            color: var(--text-muted);
        }
        .standings-table .rank-badge.top4 {
            background: var(--primary);
            color: #fff;
        }

        /* Topic Cards */
        .topic-card {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 20px;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .topic-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
            border-color: rgba(39, 133, 210, 0.3);
        }
        .topic-card .topic-icon {
            width: 44px;
            height: 44px;
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            margin-bottom: 12px;
            flex-shrink: 0;
        }
        .topic-card .topic-icon.blue {
            background: var(--primary-light);
            color: var(--primary);
        }
        .topic-card .topic-icon.orange {
            background: #fef0e7;
            color: var(--accent);
        }
        .topic-card h3 {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 6px;
            line-height: 1.4;
        }
        .topic-card p {
            font-size: 13px;
            line-height: 1.7;
            color: var(--text-muted);
            margin-bottom: 0;
        }

        /* FAQ */
        .faq-item {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            margin-bottom: 12px;
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: rgba(39, 133, 210, 0.3);
        }
        .faq-item .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            padding: 16px 20px;
            font-size: 15px;
            font-weight: 600;
            color: var(--text-main);
            cursor: pointer;
            min-height: 44px;
            user-select: none;
            transition: var(--transition);
            background: none;
            width: 100%;
            text-align: left;
            border: none;
        }
        .faq-item .faq-question:hover {
            color: var(--primary);
        }
        .faq-item .faq-question .faq-icon {
            flex-shrink: 0;
            transition: transform 0.3s ease;
            color: var(--text-muted);
            font-size: 14px;
        }
        .faq-item.open .faq-question .faq-icon {
            transform: rotate(180deg);
        }
        .faq-item .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
            padding: 0 20px;
            font-size: 14px;
            line-height: 1.8;
            color: var(--text-muted);
        }
        .faq-item.open .faq-answer {
            max-height: 200px;
            padding: 0 20px 16px;
        }

        /* CTA Section */
        .cta-section {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            padding: 64px 0;
            text-align: center;
            border-radius: 0;
        }
        .cta-section h2 {
            font-size: clamp(26px, 3vw, 34px);
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
            line-height: 1.35;
        }
        .cta-section p {
            font-size: 16px;
            color: rgba(255, 255, 255, 0.85);
            max-width: 600px;
            margin: 0 auto 28px;
            line-height: 1.8;
        }

        /* Footer */
        .site-footer {
            background: #1a2938;
            color: rgba(255, 255, 255, 0.75);
            padding: 48px 0 24px;
        }
        .site-footer .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 32px;
        }
        .site-footer h3,
        .site-footer h4 {
            color: #fff;
            font-weight: 600;
            margin-bottom: 16px;
        }
        .site-footer h3 {
            font-size: 20px;
        }
        .site-footer h4 {
            font-size: 15px;
        }
        .site-footer p {
            font-size: 14px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.65);
            margin-bottom: 0;
        }
        .site-footer .footer-col {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .site-footer .footer-col a {
            color: rgba(255, 255, 255, 0.65);
            font-size: 14px;
            transition: var(--transition);
            min-height: 32px;
            display: flex;
            align-items: center;
        }
        .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;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.55);
        }
        .site-footer .footer-bottom a {
            color: rgba(255, 255, 255, 0.65);
        }
        .site-footer .footer-bottom a:hover {
            color: #fff;
        }
        .site-footer .footer-bottom .divider {
            margin: 0 8px;
            opacity: 0.4;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            :root {
                --section-pad: 56px;
            }
            .site-footer .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
        }
        @media (max-width: 768px) {
            :root {
                --section-pad: 40px;
                --nav-height: 56px;
            }
            .category-hero {
                padding: 36px 0 32px;
            }
            .category-hero h1 {
                font-size: 28px;
            }
            .hero-data-panel {
                padding: 16px;
                gap: 12px;
            }
            .hero-data-panel .data-item .num {
                font-size: 22px;
            }
            .stats-bar .stat-item .num {
                font-size: 24px;
            }
            .league-card .card-body {
                padding: 16px;
            }
            .deep-article {
                padding: 20px;
            }
            .site-footer .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .site-footer .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
            .lang-switch {
                margin-left: 0;
                margin-top: 8px;
            }
            .main-nav {
                flex-direction: column;
                align-items: flex-start;
                width: 100%;
                gap: 2px;
                padding: 8px 0;
            }
            .main-nav a {
                width: 100%;
                padding: 10px 16px;
            }
        }
        @media (max-width: 480px) {
            :root {
                --section-pad: 32px;
            }
            .category-hero h1 {
                font-size: 24px;
            }
            .category-hero .hero-desc {
                font-size: 15px;
            }
            .league-card .card-body h3 {
                font-size: 16px;
            }
            .deep-article h3 {
                font-size: 18px;
            }
            .cta-section h2 {
                font-size: 22px;
            }
            .btn-lg {
                min-height: 44px;
                padding: 10px 20px;
                font-size: 15px;
            }
        }

/* roulang page: category4 */
:root {
            --primary: #2785D2;
            --primary-dark: #1a5f9e;
            --primary-light: #e8f2fb;
            --accent: #F28A4F;
            --accent-hover: #e0763a;
            --bg: #F5F8FC;
            --bg-white: #FFFFFF;
            --text-main: #1C2B3A;
            --text-muted: #5A6C7E;
            --border: #E4EDF5;
            --shadow-sm: 0 2px 8px rgba(25, 55, 85, 0.04);
            --shadow-md: 0 8px 24px rgba(25, 55, 85, 0.06);
            --shadow-lg: 0 16px 40px rgba(25, 55, 85, 0.1);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 24px;
            --container: 1200px;
            --section-pad: 72px;
            --nav-height: 64px;
            --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', 'Inter', 'Roboto', sans-serif;
            --transition: all 0.28s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

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

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.75;
            color: var(--text-main);
            background: var(--bg);
            min-height: 100vh;
            overflow-x: hidden;
        }

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

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

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

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            outline: none;
            border: none;
        }

        button {
            cursor: pointer;
            background: none;
        }

        .container {
            width: 100%;
            max-width: var(--container);
            margin: 0 auto;
            padding: 0 24px;
        }

        section {
            padding: var(--section-pad) 0;
        }

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

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

        .section-header {
            margin-bottom: 48px;
        }

        .section-header h2 {
            font-size: clamp(26px, 3.2vw, 32px);
            font-weight: 700;
            line-height: 1.35;
            color: var(--text-main);
            margin-bottom: 12px;
        }

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

        .section-header .tag {
            display: inline-block;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 13px;
            font-weight: 600;
            padding: 4px 14px;
            border-radius: 20px;
            margin-bottom: 16px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            min-height: 44px;
            padding: 10px 24px;
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-weight: 600;
            line-height: 1.4;
            transition: var(--transition);
            white-space: nowrap;
            border: 2px solid transparent;
            text-decoration: none;
        }

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

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

        .btn-primary:active {
            transform: translateY(0);
            background: #164f82;
        }

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

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

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

        .btn-accent:active {
            transform: translateY(0);
            background: #d9692c;
        }

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

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

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

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

        .btn-lg {
            min-height: 50px;
            padding: 14px 32px;
            font-size: 17px;
            border-radius: var(--radius-md);
        }

        .btn-sm {
            min-height: 36px;
            padding: 6px 16px;
            font-size: 13px;
            border-radius: 6px;
        }

        .badge {
            display: inline-block;
            padding: 3px 10px;
            border-radius: 12px;
            font-size: 12px;
            font-weight: 600;
            line-height: 1.4;
        }

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

        .badge-orange {
            background: #fef0e8;
            color: var(--accent);
        }

        .badge-green {
            background: #e8f7ef;
            color: #2d9e5e;
        }

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

        .card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }

        .card-body {
            padding: 20px 24px;
        }

        .card-body h3 {
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 8px;
            color: var(--text-main);
            line-height: 1.4;
        }

        .card-body p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 12px;
        }

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

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

        /* Header Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            min-height: var(--nav-height);
            display: flex;
            align-items: center;
        }

        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 22px;
            font-weight: 700;
            color: var(--text-main);
            text-decoration: none;
            white-space: nowrap;
            letter-spacing: 0.5px;
        }

        .logo-icon {
            width: 36px;
            height: 36px;
            background: var(--primary);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 20px;
            font-weight: 700;
            flex-shrink: 0;
        }

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

        .main-nav {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
        }

        .main-nav a {
            display: inline-flex;
            align-items: center;
            padding: 8px 16px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-muted);
            border-radius: var(--radius-sm);
            transition: var(--transition);
            text-decoration: none;
            min-height: 40px;
            white-space: nowrap;
        }

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

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

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

        .lang-switch {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: 20px;
            padding: 3px;
            font-size: 12px;
            font-weight: 500;
        }

        .lang-switch button {
            padding: 6px 14px;
            border-radius: 16px;
            font-size: 12px;
            font-weight: 600;
            color: var(--text-muted);
            transition: var(--transition);
            min-height: 32px;
        }

        .lang-switch button.active {
            background: var(--bg-white);
            color: var(--primary);
            box-shadow: var(--shadow-sm);
        }

        .lang-switch button:hover {
            color: var(--primary);
        }

        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            background: none;
            border: none;
            padding: 10px;
            border-radius: var(--radius-sm);
            min-width: 44px;
            min-height: 44px;
            align-items: center;
            justify-content: center;
        }

        .hamburger span {
            display: block;
            width: 22px;
            height: 2px;
            background: var(--text-main);
            border-radius: 2px;
            transition: var(--transition);
        }

        .hamburger span:nth-child(2) {
            width: 16px;
        }

        .hamburger:hover span {
            background: var(--primary);
        }

        /* Breadcrumb */
        .breadcrumb-bar {
            background: var(--bg-white);
            border-bottom: 1px solid var(--border);
            padding: 14px 0;
        }

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

        .breadcrumb a {
            color: var(--text-muted);
            text-decoration: none;
        }

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

        .breadcrumb .sep {
            color: #a0aec0;
        }

        .breadcrumb .current {
            color: var(--primary);
            font-weight: 500;
        }

        /* Hero for category */
        .category-hero {
            background: linear-gradient(135deg, #f0f7fd 0%, #e8f2fb 50%, #fef8f4 100%);
            padding: 56px 0 48px;
            border-bottom: 1px solid var(--border);
        }

        .category-hero .container {
            display: grid;
            grid-template-columns: 1.2fr 1fr;
            gap: 48px;
            align-items: center;
        }

        .category-hero .hero-text h1 {
            font-size: clamp(32px, 4vw, 42px);
            font-weight: 700;
            line-height: 1.3;
            color: var(--text-main);
            margin-bottom: 16px;
        }

        .category-hero .hero-text .subtitle {
            font-size: 17px;
            line-height: 1.85;
            color: var(--text-muted);
            margin-bottom: 24px;
            max-width: 560px;
        }

        .category-hero .hero-actions {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }

        .category-hero .hero-image {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
            min-height: 280px;
        }

        .category-hero .hero-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            min-height: 280px;
            border-radius: var(--radius-lg);
        }

        /* Intro Deep Section */
        .intro-deep {
            background: var(--bg-white);
        }

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

        .intro-deep .intro-text h2 {
            font-size: clamp(24px, 2.8vw, 30px);
            font-weight: 700;
            line-height: 1.4;
            margin-bottom: 16px;
            color: var(--text-main);
        }

        .intro-deep .intro-text p {
            font-size: 15px;
            line-height: 1.9;
            color: var(--text-muted);
            margin-bottom: 16px;
        }

        .intro-deep .intro-text p strong {
            color: var(--text-main);
            font-weight: 600;
        }

        .intro-deep .intro-image img {
            width: 100%;
            height: 360px;
            object-fit: cover;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-md);
        }

        /* Category Cards Grid */
        .category-grid-section {
            background: var(--bg);
        }

        .category-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .category-grid .card .card-image {
            height: 200px;
            overflow: hidden;
            border-radius: var(--radius-md) var(--radius-md) 0 0;
        }

        .category-grid .card .card-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition);
        }

        .category-grid .card:hover .card-image img {
            transform: scale(1.05);
        }

        .category-grid .card .card-body {
            padding: 20px;
        }

        .category-grid .card .card-body .badge {
            margin-bottom: 10px;
        }

        /* Deep Guide Section */
        .deep-guide {
            background: var(--bg-white);
        }

        .deep-guide .container {
            display: grid;
            grid-template-columns: 1fr 1.2fr;
            gap: 48px;
            align-items: start;
        }

        .deep-guide .guide-sidebar {
            position: sticky;
            top: calc(var(--nav-height) + 24px);
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 24px;
        }

        .deep-guide .guide-sidebar h3 {
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 16px;
        }

        .deep-guide .guide-sidebar ul {
            list-style: none;
        }

        .deep-guide .guide-sidebar ul li {
            margin-bottom: 10px;
        }

        .deep-guide .guide-sidebar ul li a {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--text-muted);
            padding: 8px 12px;
            border-radius: var(--radius-sm);
            transition: var(--transition);
        }

        .deep-guide .guide-sidebar ul li a:hover {
            color: var(--primary);
            background: var(--primary-light);
        }

        .deep-guide .guide-sidebar ul li a .num {
            width: 24px;
            height: 24px;
            background: var(--primary);
            color: #fff;
            border-radius: 50%;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 12px;
            font-weight: 700;
            flex-shrink: 0;
        }

        .deep-guide .guide-content h2 {
            font-size: clamp(22px, 2.6vw, 28px);
            font-weight: 700;
            line-height: 1.4;
            margin-bottom: 20px;
        }

        .deep-guide .guide-content h3 {
            font-size: 19px;
            font-weight: 600;
            margin-bottom: 12px;
            margin-top: 28px;
            color: var(--text-main);
        }

        .deep-guide .guide-content p {
            font-size: 15px;
            line-height: 1.9;
            color: var(--text-muted);
            margin-bottom: 14px;
        }

        .deep-guide .guide-content .tip-box {
            background: var(--primary-light);
            border-left: 4px solid var(--primary);
            border-radius: var(--radius-sm);
            padding: 16px 20px;
            margin: 20px 0;
        }

        .deep-guide .guide-content .tip-box p {
            margin-bottom: 0;
            color: var(--text-main);
            font-weight: 500;
        }

        /* Product List */
        .product-list-section {
            background: var(--bg);
        }

        .product-list {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }

        .product-item {
            display: flex;
            gap: 20px;
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 20px;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
        }

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

        .product-item .product-image {
            width: 140px;
            height: 140px;
            flex-shrink: 0;
            border-radius: var(--radius-sm);
            overflow: hidden;
        }

        .product-item .product-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: var(--radius-sm);
        }

        .product-item .product-info h3 {
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 8px;
            line-height: 1.4;
        }

        .product-item .product-info p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 10px;
        }

        .product-item .product-info .product-tags {
            display: flex;
            gap: 6px;
            flex-wrap: wrap;
            margin-bottom: 10px;
        }

        /* Stats Section */
        .stats-section {
            background: linear-gradient(135deg, #1a5f9e 0%, #2785D2 50%, #2E9BD6 100%);
            padding: 56px 0;
        }

        .stats-section .container {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
            text-align: center;
        }

        .stats-section .stat-item h3 {
            font-size: 36px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 4px;
            line-height: 1.2;
        }

        .stats-section .stat-item p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.8);
            margin-bottom: 0;
        }

        /* FAQ Section */
        .faq-section {
            background: var(--bg-white);
        }

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

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

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

        .faq-item .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 16px 20px;
            font-size: 15px;
            font-weight: 600;
            color: var(--text-main);
            cursor: pointer;
            background: none;
            border: none;
            width: 100%;
            text-align: left;
            transition: var(--transition);
            min-height: 48px;
        }

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

        .faq-item .faq-question .icon {
            width: 24px;
            height: 24px;
            border-radius: 50%;
            background: var(--primary-light);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            color: var(--primary);
            transition: var(--transition);
            flex-shrink: 0;
        }

        .faq-item .faq-answer {
            padding: 0 20px 16px;
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.8;
            display: none;
        }

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

        .faq-item.open .faq-question .icon {
            transform: rotate(45deg);
        }

        /* CTA Section */
        .cta-section {
            background: linear-gradient(135deg, #f0f7fd 0%, #fef8f4 100%);
            padding: 64px 0;
        }

        .cta-section .cta-card {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-xl);
            box-shadow: var(--shadow-lg);
            padding: 48px 40px;
            text-align: center;
            max-width: 760px;
            margin: 0 auto;
        }

        .cta-section .cta-card h2 {
            font-size: clamp(24px, 2.8vw, 30px);
            font-weight: 700;
            margin-bottom: 12px;
            color: var(--text-main);
        }

        .cta-section .cta-card p {
            font-size: 15px;
            color: var(--text-muted);
            line-height: 1.8;
            margin-bottom: 24px;
        }

        .cta-section .cta-card .cta-actions {
            display: flex;
            gap: 12px;
            justify-content: center;
            flex-wrap: wrap;
        }

        /* Footer */
        .site-footer {
            background: #1a2b3c;
            color: #cbd5e1;
            padding: 56px 0 24px;
            font-size: 14px;
            line-height: 1.7;
        }

        .site-footer a {
            color: #cbd5e1;
            text-decoration: none;
            transition: var(--transition);
        }

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

        .site-footer .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 40px;
        }

        .site-footer .footer-brand h3 {
            font-size: 20px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
        }

        .site-footer .footer-brand p {
            font-size: 13px;
            color: #94a3b8;
            line-height: 1.8;
            max-width: 300px;
        }

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

        .site-footer .footer-col a {
            display: block;
            padding: 4px 0;
            font-size: 13px;
            color: #94a3b8;
        }

        .site-footer .footer-col a:hover {
            color: #fff;
            padding-left: 4px;
        }

        .site-footer .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
            font-size: 12px;
            color: #94a3b8;
        }

        .site-footer .footer-bottom .divider {
            margin: 0 8px;
            color: #475569;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            :root {
                --section-pad: 56px;
            }

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

            .intro-deep .container {
                grid-template-columns: 1fr;
                gap: 24px;
            }

            .intro-deep .intro-image img {
                height: 280px;
            }

            .deep-guide .container {
                grid-template-columns: 1fr;
                gap: 24px;
            }

            .deep-guide .guide-sidebar {
                position: static;
            }

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

            .stats-section .container {
                grid-template-columns: repeat(2, 1fr);
                gap: 24px;
            }

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

        @media (max-width: 768px) {
            :root {
                --section-pad: 40px;
                --nav-height: 56px;
            }

            .container {
                padding: 0 16px;
            }

            .main-nav {
                display: none;
                position: absolute;
                top: var(--nav-height);
                left: 0;
                right: 0;
                background: var(--bg-white);
                border-bottom: 1px solid var(--border);
                box-shadow: var(--shadow-md);
                padding: 16px 24px;
                flex-direction: column;
                align-items: flex-start;
                gap: 4px;
            }

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

            .main-nav a {
                width: 100%;
                padding: 12px 16px;
            }

            .hamburger {
                display: flex;
            }

            .nav-right {
                gap: 8px;
            }

            .lang-switch button {
                padding: 4px 10px;
                font-size: 11px;
            }

            .category-hero .container {
                grid-template-columns: 1fr;
                gap: 24px;
            }

            .category-hero .hero-image {
                min-height: 220px;
            }

            .category-hero .hero-image img {
                min-height: 220px;
            }

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

            .product-item {
                flex-direction: column;
                gap: 12px;
            }

            .product-item .product-image {
                width: 100%;
                height: 200px;
            }

            .cta-section .cta-card {
                padding: 32px 20px;
            }

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

            .site-footer .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 8px;
            }
        }

        @media (max-width: 480px) {
            :root {
                --section-pad: 32px;
            }

            .category-hero {
                padding: 36px 0 32px;
            }

            .category-hero .hero-text h1 {
                font-size: 28px;
            }

            .stats-section .container {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }

            .stats-section .stat-item h3 {
                font-size: 28px;
            }

            .btn-lg {
                min-height: 44px;
                padding: 10px 20px;
                font-size: 15px;
            }
        }

/* roulang page: category5 */
:root {
            --primary: #2785D2;
            --primary-dark: #1a5f9e;
            --primary-light: #e8f2fb;
            --accent: #F28A4F;
            --accent-hover: #e0763a;
            --bg: #F5F8FC;
            --bg-white: #FFFFFF;
            --text-main: #1C2B3A;
            --text-muted: #5A6C7E;
            --border: #E4EDF5;
            --shadow-sm: 0 2px 8px rgba(25, 55, 85, 0.04);
            --shadow-md: 0 8px 24px rgba(25, 55, 85, 0.06);
            --shadow-lg: 0 16px 40px rgba(25, 55, 85, 0.1);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 24px;
            --container: 1200px;
            --section-pad: 64px;
            --nav-height: 64px;
            --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', 'Inter', 'Roboto', sans-serif;
            --transition: all 0.28s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

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

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.75;
            color: var(--text-main);
            background: var(--bg);
            min-height: 100vh;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        img {
            max-width: 100%;
            height: auto;
            object-fit: cover;
            border-radius: var(--radius-md);
            display: block;
            background: #edf2f7;
        }

        a {
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--primary-dark);
        }

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            outline: none;
            border: none;
        }
        button {
            cursor: pointer;
            background: none;
        }

        .container {
            width: 100%;
            max-width: var(--container);
            margin: 0 auto;
            padding: 0 24px;
        }

        section {
            padding: var(--section-pad) 0;
        }

        .section-bg-white {
            background: var(--bg-white);
        }
        .section-bg-light {
            background: var(--bg);
        }

        .section-header {
            margin-bottom: 40px;
        }
        .section-header h2 {
            font-size: clamp(24px, 3vw, 30px);
            font-weight: 700;
            line-height: 1.35;
            color: var(--text-main);
            margin-bottom: 10px;
        }
        .section-header p {
            font-size: 16px;
            line-height: 1.85;
            color: var(--text-muted);
            max-width: 720px;
        }
        .section-header .tag {
            display: inline-block;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 13px;
            font-weight: 600;
            padding: 4px 14px;
            border-radius: 20px;
            margin-bottom: 14px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            min-height: 44px;
            padding: 10px 24px;
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-weight: 600;
            line-height: 1.4;
            transition: var(--transition);
            white-space: nowrap;
            border: 2px solid transparent;
        }
        .btn-primary {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            border-color: var(--primary-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
        }
        .btn-primary:active {
            transform: translateY(0);
            background: #164f82;
        }
        .btn-primary:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }
        .btn-accent {
            background: var(--accent);
            color: #fff;
            border-color: var(--accent);
        }
        .btn-accent:hover {
            background: var(--accent-hover);
            border-color: var(--accent-hover);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
        }
        .btn-accent:active {
            transform: translateY(0);
            background: #d9692c;
        }
        .btn-accent:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }
        .btn-outline {
            background: transparent;
            color: var(--primary);
            border-color: var(--primary);
        }
        .btn-outline:hover {
            background: var(--primary-light);
            color: var(--primary-dark);
            border-color: var(--primary);
            transform: translateY(-2px);
        }
        .btn-outline:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }
        .btn-outline-white {
            background: transparent;
            color: #fff;
            border-color: rgba(255, 255, 255, 0.7);
        }
        .btn-outline-white:hover {
            background: rgba(255, 255, 255, 0.15);
            color: #fff;
            border-color: #fff;
        }
        .btn-lg {
            min-height: 50px;
            padding: 14px 32px;
            font-size: 17px;
            border-radius: var(--radius-md);
        }
        .btn-sm {
            min-height: 36px;
            padding: 6px 16px;
            font-size: 13px;
            border-radius: 6px;
        }

        .badge {
            display: inline-block;
            padding: 3px 10px;
            border-radius: 12px;
            font-size: 12px;
            font-weight: 600;
            line-height: 1.4;
        }
        .badge-blue {
            background: var(--primary-light);
            color: var(--primary);
        }
        .badge-orange {
            background: #fff1e8;
            color: var(--accent-hover);
        }
        .badge-green {
            background: #e8f7f0;
            color: #2c9a6a;
        }

        /* ---- Header / Nav ---- */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
        }
        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: var(--nav-height);
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 21px;
            font-weight: 700;
            color: var(--text-main);
            letter-spacing: 0.5px;
        }
        .logo:hover {
            color: var(--primary);
        }
        .logo-icon {
            width: 36px;
            height: 36px;
            border-radius: var(--radius-sm);
            background: var(--primary);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 18px;
            font-weight: 700;
            flex-shrink: 0;
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .main-nav a {
            display: inline-flex;
            align-items: center;
            padding: 8px 14px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-muted);
            border-radius: var(--radius-sm);
            transition: var(--transition);
        }
        .main-nav a:hover {
            color: var(--primary);
            background: var(--primary-light);
        }
        .main-nav a.active {
            color: var(--primary);
            background: var(--primary-light);
            font-weight: 600;
        }
        .nav-right {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .lang-switch {
            display: flex;
            align-items: center;
            border: 1px solid var(--border);
            border-radius: 20px;
            padding: 2px;
            background: var(--bg);
        }
        .lang-switch button {
            padding: 6px 14px;
            font-size: 13px;
            font-weight: 500;
            color: var(--text-muted);
            border-radius: 18px;
            min-height: 32px;
            transition: var(--transition);
        }
        .lang-switch button.active {
            background: #fff;
            color: var(--primary);
            font-weight: 600;
            box-shadow: var(--shadow-sm);
        }
        .lang-switch button:hover {
            color: var(--primary);
        }
        .nav-cta {
            display: inline-flex;
            align-items: center;
            min-height: 40px;
            padding: 8px 18px;
            border-radius: var(--radius-sm);
            background: var(--primary);
            color: #fff;
            font-size: 14px;
            font-weight: 600;
            transition: var(--transition);
        }
        .nav-cta:hover {
            background: var(--primary-dark);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: var(--shadow-md);
        }
        .hamburger {
            display: none;
            flex-direction: column;
            justify-content: center;
            gap: 5px;
            width: 44px;
            height: 44px;
            padding: 10px;
            border-radius: var(--radius-sm);
            background: transparent;
            transition: var(--transition);
        }
        .hamburger span {
            display: block;
            width: 100%;
            height: 2px;
            background: var(--text-main);
            border-radius: 2px;
            transition: var(--transition);
        }
        .hamburger:hover {
            background: var(--primary-light);
        }
        .hamburger.active span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }
        .hamburger.active span:nth-child(2) {
            opacity: 0;
        }
        .hamburger.active span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        /* ---- Breadcrumb ---- */
        .breadcrumb {
            padding: 16px 0 0;
            font-size: 13px;
            color: var(--text-muted);
        }
        .breadcrumb a {
            color: var(--text-muted);
        }
        .breadcrumb a:hover {
            color: var(--primary);
        }
        .breadcrumb .sep {
            margin: 0 8px;
            color: #b8c5d3;
        }

        /* ---- Category Hero / Header ---- */
        .page-header {
            padding: 36px 0 48px;
            background: linear-gradient(135deg, #f0f7fc 0%, #f8fafc 100%);
            border-bottom: 1px solid var(--border);
        }
        .page-header h1 {
            font-size: clamp(30px, 4vw, 40px);
            font-weight: 700;
            line-height: 1.3;
            color: var(--text-main);
            margin-bottom: 14px;
        }
        .page-header .subtitle {
            font-size: 16px;
            line-height: 1.85;
            color: var(--text-muted);
            max-width: 760px;
        }
        .page-header .header-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            margin-top: 18px;
        }

        /* ---- Community stats strip ---- */
        .stats-strip {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            padding: 24px 28px;
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 18px;
        }
        .stat-item {
            text-align: center;
            padding: 8px 4px;
        }
        .stat-item .num {
            font-size: 28px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.2;
        }
        .stat-item .label {
            font-size: 13px;
            color: var(--text-muted);
            margin-top: 4px;
        }

        /* ---- Topic cards list ---- */
        .topic-list {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 22px;
        }
        .topic-card {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            display: flex;
            flex-direction: column;
            transition: var(--transition);
        }
        .topic-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
            border-color: #d6e4f0;
        }
        .topic-card img {
            width: 100%;
            aspect-ratio: 16/9;
            object-fit: cover;
            border-radius: var(--radius-lg) var(--radius-lg) 0 0;
        }
        .topic-card-body {
            padding: 18px 20px 20px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }
        .topic-card-body h3 {
            font-size: 18px;
            font-weight: 700;
            line-height: 1.4;
            color: var(--text-main);
            margin-bottom: 8px;
        }
        .topic-card-body h3 a {
            color: var(--text-main);
        }
        .topic-card-body h3 a:hover {
            color: var(--primary);
        }
        .topic-card-body .excerpt {
            font-size: 14px;
            line-height: 1.75;
            color: var(--text-muted);
            flex: 1;
            margin-bottom: 12px;
        }
        .topic-card-meta {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 10px;
            font-size: 12px;
            color: var(--text-muted);
            border-top: 1px solid var(--border);
            padding-top: 12px;
        }
        .topic-card-meta .date {
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }
        .topic-card-meta .link-more {
            margin-left: auto;
            font-weight: 600;
            color: var(--primary);
            font-size: 13px;
        }
        .topic-card-meta .link-more:hover {
            color: var(--primary-dark);
        }

        /* ---- Circles / community zones ---- */
        .circle-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 22px;
        }
        .circle-card {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 22px;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }
        .circle-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
            border-color: #d6e4f0;
        }
        .circle-card .circle-icon {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--primary-light);
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 12px;
        }
        .circle-card h3 {
            font-size: 17px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 8px;
        }
        .circle-card p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 12px;
        }
        .circle-card .member-count {
            font-size: 12px;
            font-weight: 600;
            color: var(--primary);
        }

        /* ---- Rules block ---- */
        .rules-panel {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 28px;
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            padding: 28px;
        }
        .rules-block h3 {
            font-size: 17px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 12px;
        }
        .rules-block ul {
            list-style: none;
            padding: 0;
        }
        .rules-block ul li {
            position: relative;
            padding-left: 24px;
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.8;
            margin-bottom: 8px;
        }
        .rules-block ul li::before {
            content: '';
            position: absolute;
            left: 0;
            top: 11px;
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--accent);
        }

        /* ---- Events ---- */
        .event-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .event-item {
            display: flex;
            align-items: center;
            gap: 20px;
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            padding: 16px 20px;
            transition: var(--transition);
        }
        .event-item:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-1px);
            border-color: #d6e4f0;
        }
        .event-date-box {
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            min-width: 64px;
            min-height: 64px;
            background: var(--primary-light);
            border-radius: var(--radius-sm);
            padding: 8px;
            text-align: center;
            flex-shrink: 0;
        }
        .event-date-box .day {
            font-size: 22px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.1;
        }
        .event-date-box .month {
            font-size: 12px;
            color: var(--primary-dark);
            font-weight: 500;
        }
        .event-info {
            flex: 1;
        }
        .event-info h3 {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 4px;
        }
        .event-info p {
            font-size: 13px;
            color: var(--text-muted);
        }
        .event-tag {
            font-size: 12px;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 12px;
        }

        /* ---- FAQ ---- */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
            max-width: 820px;
            margin: 0 auto;
        }
        .faq-item {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            box-shadow: var(--shadow-sm);
            border-color: #d6e4f0;
        }
        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            padding: 16px 20px;
            font-size: 15px;
            font-weight: 600;
            color: var(--text-main);
            text-align: left;
            background: transparent;
            transition: var(--transition);
        }
        .faq-question:hover {
            color: var(--primary);
        }
        .faq-question .faq-icon {
            flex-shrink: 0;
            width: 24px;
            height: 24px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 16px;
            font-weight: 700;
            transition: var(--transition);
        }
        .faq-item.open .faq-question .faq-icon {
            transform: rotate(45deg);
            background: var(--primary);
            color: #fff;
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease;
        }
        .faq-answer-inner {
            padding: 0 20px 18px;
            font-size: 14px;
            line-height: 1.8;
            color: var(--text-muted);
        }
        .faq-item.open .faq-answer {
            max-height: 200px;
        }

        /* ---- CTA ---- */
        .cta-box {
            background: linear-gradient(135deg, #1f6dad 0%, #2785D2 55%, #2e9bd6 100%);
            border-radius: var(--radius-xl);
            padding: 48px 40px;
            text-align: center;
            color: #fff;
            position: relative;
            overflow: hidden;
        }
        .cta-box::after {
            content: '';
            position: absolute;
            right: -60px;
            top: -60px;
            width: 220px;
            height: 220px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.06);
            pointer-events: none;
        }
        .cta-box::before {
            content: '';
            position: absolute;
            left: -40px;
            bottom: -40px;
            width: 160px;
            height: 160px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.05);
            pointer-events: none;
        }
        .cta-box h2 {
            font-size: clamp(24px, 3vw, 30px);
            font-weight: 700;
            margin-bottom: 12px;
            position: relative;
            z-index: 1;
        }
        .cta-box p {
            font-size: 16px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.85);
            max-width: 560px;
            margin: 0 auto 24px;
            position: relative;
            z-index: 1;
        }
        .cta-box .btn-group {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            justify-content: center;
            position: relative;
            z-index: 1;
        }
        .btn-white-solid {
            background: #fff;
            color: var(--primary-dark);
            border-color: #fff;
        }
        .btn-white-solid:hover {
            background: #f0f7fc;
            border-color: #f0f7fc;
            color: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: var(--shadow-lg);
        }

        /* ---- Footer ---- */
        .site-footer {
            background: #1a2634;
            color: #b8c5d3;
            padding: 48px 0 24px;
            font-size: 14px;
        }
        .site-footer .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1fr;
            gap: 30px;
            margin-bottom: 30px;
        }
        .site-footer h3 {
            font-size: 20px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
        }
        .site-footer h4 {
            font-size: 15px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 12px;
        }
        .site-footer .footer-brand p {
            font-size: 13px;
            line-height: 1.7;
            color: #8fa3b8;
            max-width: 280px;
        }
        .site-footer .footer-col {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .site-footer .footer-col a {
            color: #b8c5d3;
            font-size: 13px;
            transition: var(--transition);
        }
        .site-footer .footer-col a:hover {
            color: #fff;
        }
        .site-footer .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 10px;
            border-top: 1px solid #2a3a4a;
            padding-top: 20px;
            font-size: 12px;
            color: #7d92a8;
        }
        .site-footer .footer-bottom a {
            color: #b8c5d3;
        }
        .site-footer .footer-bottom a:hover {
            color: #fff;
        }
        .site-footer .divider {
            margin: 0 8px;
            color: #3a4b5c;
        }

        /* ---- Mobile nav drawer ---- */
        .mobile-menu {
            display: none;
            position: fixed;
            top: var(--nav-height);
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(0, 0, 0, 0.35);
            z-index: 99;
            opacity: 0;
            pointer-events: none;
            transition: opacity 0.3s ease;
        }
        .mobile-menu.open {
            opacity: 1;
            pointer-events: auto;
        }
        .mobile-menu-inner {
            background: #fff;
            padding: 16px 20px;
            border-bottom: 1px solid var(--border);
            box-shadow: var(--shadow-lg);
            transform: translateY(-10px);
            transition: transform 0.3s ease;
        }
        .mobile-menu.open .mobile-menu-inner {
            transform: translateY(0);
        }
        .mobile-menu-inner a {
            display: block;
            padding: 12px 10px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-main);
            border-radius: var(--radius-sm);
            transition: var(--transition);
        }
        .mobile-menu-inner a:hover,
        .mobile-menu-inner a.active {
            background: var(--primary-light);
            color: var(--primary);
        }
        .mobile-menu-inner .lang-switch {
            margin: 10px 0;
            display: flex;
            width: fit-content;
        }

        /* ---- Responsive ---- */
        @media (max-width: 1024px) {
            .circle-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .rules-panel {
                grid-template-columns: 1fr;
            }
            .site-footer .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 768px) {
            :root {
                --section-pad: 44px;
                --nav-height: 56px;
            }
            .main-nav {
                display: none;
            }
            .nav-right .nav-cta {
                display: none;
            }
            .hamburger {
                display: flex;
            }
            .mobile-menu {
                display: block;
            }
            .topic-list {
                grid-template-columns: 1fr;
            }
            .stats-strip {
                grid-template-columns: repeat(2, 1fr);
                padding: 18px 16px;
            }
            .circle-grid {
                grid-template-columns: 1fr;
            }
            .event-item {
                flex-direction: column;
                align-items: flex-start;
            }
            .event-date-box {
                min-width: 56px;
                min-height: 56px;
            }
            .site-footer .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .site-footer .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .cta-box {
                padding: 36px 24px;
            }
            .page-header {
                padding: 28px 0 36px;
            }
        }

        @media (max-width: 480px) {
            :root {
                --section-pad: 32px;
            }
            .container {
                padding: 0 16px;
            }
            .section-header {
                margin-bottom: 28px;
            }
            .stats-strip {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .stat-item .num {
                font-size: 22px;
            }
            .topic-card-body {
                padding: 14px 16px 16px;
            }
            .topic-card-meta {
                flex-wrap: wrap;
            }
            .topic-card-meta .link-more {
                margin-left: 0;
                width: 100%;
                text-align: right;
            }
            .event-item {
                padding: 14px 16px;
            }
            .btn {
                width: 100%;
                justify-content: center;
            }
            .btn-group .btn {
                width: auto;
                flex: 1;
                min-width: 140px;
            }
        }

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