/* roulang page: index */
/* ===== Design Variables ===== */
        :root {
            --color-primary: #D32F2F;
            --color-primary-dark: #B71C1C;
            --color-primary-light: #EF5350;
            --color-secondary: #1565C0;
            --color-secondary-dark: #0D47A1;
            --color-accent: #FF8F00;
            --color-dark: #1a1a2e;
            --color-dark-card: #16213e;
            --color-bg: #f8f9fa;
            --color-bg-alt: #ffffff;
            --color-text: #212529;
            --color-text-light: #6c757d;
            --color-text-white: #ffffff;
            --color-border: #e9ecef;
            --color-border-light: rgba(255,255,255,0.12);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
            --shadow-md: 0 6px 24px rgba(0,0,0,0.10);
            --shadow-lg: 0 14px 48px rgba(0,0,0,0.14);
            --shadow-glow: 0 0 40px rgba(211,47,47,0.25);
            --transition: 0.30s cubic-bezier(0.25,0.46,0.45,0.94);
            --font-sans: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
            --max-width: 1200px;
            --header-height: 72px;
            --bottom-nav-height: 64px;
        }

        /* ===== Reset & Base ===== */
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

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

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--color-text);
            background: var(--color-bg);
            padding-top: var(--header-height);
            padding-bottom: 0;
        }

        @media (max-width: 768px) {
            body { padding-bottom: var(--bottom-nav-height); padding-top: 0; }
        }

        a { color: var(--color-secondary); text-decoration: none; transition: var(--transition); }
        a:hover { color: var(--color-primary); }
        a:focus-visible { outline: 3px solid var(--color-primary); outline-offset: 2px; border-radius: 4px; }

        img { max-width: 100%; height: auto; display: block; border-radius: var(--radius-sm); }
        ul, ol { list-style: none; }
        button, input, textarea { font-family: inherit; font-size: 1rem; }

        .container { max-width: var(--max-width); margin: 0 auto; padding: 0 24px; }
        @media (max-width: 640px) { .container { padding: 0 16px; } }

        .section-padding { padding: 80px 0; }
        @media (max-width: 768px) { .section-padding { padding: 56px 0; } }

        .section-title {
            text-align: center;
            margin-bottom: 48px;
        }
        .section-title h2 {
            font-size: 2rem;
            font-weight: 800;
            color: var(--color-dark);
            margin-bottom: 12px;
            letter-spacing: -0.02em;
        }
        .section-title p {
            font-size: 1.05rem;
            color: var(--color-text-light);
            max-width: 640px;
            margin: 0 auto;
        }
        @media (max-width: 768px) {
            .section-title h2 { font-size: 1.6rem; }
            .section-title { margin-bottom: 32px; }
        }

        .section-title.light h2 { color: var(--color-text-white); }
        .section-title.light p { color: rgba(255,255,255,0.75); }

        /* ===== Buttons ===== */
        .btn {
            display: inline-flex; align-items: center; gap: 8px;
            padding: 14px 32px; border-radius: 50px; font-weight: 600;
            font-size: 1rem; line-height: 1.2; border: none; cursor: pointer;
            transition: var(--transition); text-decoration: none;
        }
        .btn-primary {
            background: var(--color-primary); color: #fff;
            box-shadow: 0 4px 16px rgba(211,47,47,0.35);
        }
        .btn-primary:hover { background: var(--color-primary-dark); color: #fff; transform: translateY(-2px); box-shadow: 0 8px 28px rgba(211,47,47,0.45); }
        .btn-primary:active { transform: translateY(0); box-shadow: 0 2px 8px rgba(211,47,47,0.3); }

        .btn-outline {
            background: transparent; color: #fff;
            border: 2px solid rgba(255,255,255,0.7);
        }
        .btn-outline:hover { background: rgba(255,255,255,0.12); color: #fff; border-color: #fff; transform: translateY(-2px); }

        .btn-secondary {
            background: var(--color-secondary); color: #fff;
            box-shadow: 0 4px 16px rgba(21,101,192,0.30);
        }
        .btn-secondary:hover { background: var(--color-secondary-dark); color: #fff; transform: translateY(-2px); }

        .btn-sm { padding: 10px 22px; font-size: 0.9rem; }

        @media (max-width: 520px) {
            .btn { padding: 12px 24px; font-size: 0.95rem; }
        }

        /* ===== Badge / Tag ===== */
        .badge {
            display: inline-block; padding: 4px 14px; border-radius: 20px;
            font-size: 0.78rem; font-weight: 600; letter-spacing: 0.02em;
            background: var(--color-primary-light); color: #fff;
        }
        .badge-gold { background: var(--color-accent); color: #fff; }
        .badge-blue { background: var(--color-secondary); color: #fff; }
        .badge-outline { background: transparent; border: 1px solid var(--color-border); color: var(--color-text-light); }

        /* ===== Desktop Header ===== */
        .site-header {
            position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
            height: var(--header-height);
            background: rgba(255,255,255,0.92);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--color-border);
            box-shadow: 0 2px 20px rgba(0,0,0,0.04);
            display: flex; align-items: center;
        }
        .site-header .container {
            display: flex; align-items: center; justify-content: space-between; width: 100%;
        }
        .site-logo {
            font-size: 1.35rem; font-weight: 800; color: var(--color-dark);
            letter-spacing: -0.02em; text-decoration: none; display: flex; align-items: center; gap: 6px;
        }
        .site-logo i { color: var(--color-primary); font-size: 1.5rem; }
        .site-logo span { background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
        .site-logo:hover { opacity: 0.88; }

        .main-nav { display: flex; align-items: center; gap: 8px; }
        .main-nav a {
            padding: 8px 18px; border-radius: 30px; font-size: 0.95rem;
            font-weight: 500; color: var(--color-text); text-decoration: none;
            transition: var(--transition); position: relative;
        }
        .main-nav a:hover { background: rgba(211,47,47,0.07); color: var(--color-primary); }
        .main-nav a.active {
            background: var(--color-primary); color: #fff;
            box-shadow: 0 2px 12px rgba(211,47,47,0.25);
        }
        .main-nav a.active:hover { background: var(--color-primary-dark); }

        .header-cta .btn { padding: 10px 24px; font-size: 0.9rem; }

        @media (max-width: 768px) {
            .site-header { display: none; }
        }

        /* ===== Mobile Bottom Tab ===== */
        .mobile-bottom-nav {
            display: none;
            position: fixed; bottom: 0; left: 0; right: 0; z-index: 1100;
            height: var(--bottom-nav-height);
            background: rgba(255,255,255,0.96);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-top: 1px solid var(--color-border);
            box-shadow: 0 -4px 20px rgba(0,0,0,0.06);
            align-items: center; justify-content: space-around;
            padding: 0 8px; padding-bottom: env(safe-area-inset-bottom, 0);
        }
        .mobile-bottom-nav a {
            display: flex; flex-direction: column; align-items: center; gap: 2px;
            padding: 6px 12px; border-radius: 12px; font-size: 0.7rem;
            font-weight: 500; color: var(--color-text-light); text-decoration: none;
            transition: var(--transition); min-width: 60px;
        }
        .mobile-bottom-nav a i { font-size: 1.3rem; transition: var(--transition); }
        .mobile-bottom-nav a span { font-size: 0.68rem; line-height: 1.1; }
        .mobile-bottom-nav a:hover { color: var(--color-primary); }
        .mobile-bottom-nav a.active { color: var(--color-primary); }
        .mobile-bottom-nav a.active i { transform: scale(1.05); }
        .mobile-bottom-nav a.active::after {
            content: ''; display: block; width: 20px; height: 3px;
            background: var(--color-primary); border-radius: 4px;
            margin-top: 2px;
        }

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

        /* ===== Hero ===== */
        .hero {
            position: relative; overflow: hidden;
            min-height: 92vh; display: flex; align-items: center;
            background: var(--color-dark);
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover; background-position: center center;
            background-attachment: fixed;
        }
        .hero::before {
            content: ''; position: absolute; inset: 0;
            background: linear-gradient(135deg, rgba(26,26,46,0.82) 0%, rgba(26,26,46,0.50) 60%, rgba(0,0,0,0.30) 100%);
            z-index: 1;
        }
        .hero .container { position: relative; z-index: 2; width: 100%; }
        .hero-content { max-width: 720px; padding: 40px 0; }
        .hero-badge {
            display: inline-block; padding: 6px 20px; border-radius: 30px;
            background: rgba(255,255,255,0.12); backdrop-filter: blur(6px);
            color: #fff; font-size: 0.85rem; font-weight: 500;
            margin-bottom: 20px; border: 1px solid rgba(255,255,255,0.15);
        }
        .hero-content h1 {
            font-size: 3rem; font-weight: 900; color: #fff;
            line-height: 1.2; letter-spacing: -0.02em; margin-bottom: 18px;
        }
        .hero-content h1 span { 
            background: linear-gradient(135deg, #FFD700, #FF8F00); 
            -webkit-background-clip: text; -webkit-text-fill-color: transparent; 
            background-clip: text;
        }
        .hero-content p {
            font-size: 1.15rem; color: rgba(255,255,255,0.80);
            max-width: 580px; margin-bottom: 32px; line-height: 1.8;
        }
        .hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }
        .hero-stats {
            display: flex; gap: 40px; margin-top: 48px;
            padding-top: 32px; border-top: 1px solid rgba(255,255,255,0.12);
        }
        .hero-stats .stat-item { text-align: center; }
        .hero-stats .stat-number { font-size: 1.8rem; font-weight: 800; color: #fff; display: block; }
        .hero-stats .stat-label { font-size: 0.85rem; color: rgba(255,255,255,0.60); }

        @media (max-width: 768px) {
            .hero { min-height: 80vh; background-attachment: scroll; }
            .hero-content h1 { font-size: 2rem; }
            .hero-content p { font-size: 1rem; }
            .hero-stats { gap: 24px; flex-wrap: wrap; }
            .hero-stats .stat-number { font-size: 1.4rem; }
        }
        @media (max-width: 520px) {
            .hero-content h1 { font-size: 1.6rem; }
            .hero-actions { flex-direction: column; }
            .hero-actions .btn { width: 100%; justify-content: center; }
            .hero-stats { gap: 16px; }
            .hero-stats .stat-item { flex: 1; }
        }

        /* ===== Features Section ===== */
        .features-section { background: var(--color-bg-alt); }
        .features-grid {
            display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px;
        }
        .feature-card {
            background: #fff; border-radius: var(--radius-md);
            padding: 36px 28px; text-align: center;
            box-shadow: var(--shadow-sm); border: 1px solid var(--color-border);
            transition: var(--transition); position: relative; overflow: hidden;
        }
        .feature-card::before {
            content: ''; position: absolute; top: 0; left: 0; right: 0;
            height: 4px; background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
            opacity: 0; transition: var(--transition);
        }
        .feature-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
        .feature-card:hover::before { opacity: 1; }
        .feature-icon {
            width: 68px; height: 68px; border-radius: 50%;
            display: flex; align-items: center; justify-content: center;
            margin: 0 auto 20px; font-size: 1.8rem; color: #fff;
            background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
            box-shadow: 0 6px 20px rgba(211,47,47,0.25);
        }
        .feature-icon.blue { background: linear-gradient(135deg, var(--color-secondary), var(--color-secondary-dark)); box-shadow: 0 6px 20px rgba(21,101,192,0.25); }
        .feature-icon.gold { background: linear-gradient(135deg, var(--color-accent), #FF6F00); box-shadow: 0 6px 20px rgba(255,143,0,0.25); }
        .feature-card h3 { font-size: 1.2rem; font-weight: 700; margin-bottom: 10px; color: var(--color-dark); }
        .feature-card p { font-size: 0.95rem; color: var(--color-text-light); line-height: 1.7; }

        @media (max-width: 900px) {
            .features-grid { grid-template-columns: repeat(2, 1fr); gap: 20px; }
        }
        @media (max-width: 560px) {
            .features-grid { grid-template-columns: 1fr; gap: 18px; }
            .feature-card { padding: 28px 20px; }
        }

        /* ===== Categories / Sports Section ===== */
        .sports-section {
            background: var(--color-dark);
            background-image: url('/assets/images/backpic/back-2.webp');
            background-size: cover; background-position: center;
            background-attachment: fixed; position: relative;
        }
        .sports-section::before {
            content: ''; position: absolute; inset: 0;
            background: linear-gradient(135deg, rgba(26,26,46,0.88) 0%, rgba(21,33,62,0.78) 100%);
        }
        .sports-section .container { position: relative; z-index: 2; }

        .sports-grid {
            display: grid; grid-template-columns: repeat(2, 1fr); gap: 28px;
        }
        .sport-card {
            border-radius: var(--radius-md); overflow: hidden;
            background: var(--color-dark-card);
            border: 1px solid var(--color-border-light);
            transition: var(--transition); display: flex;
            flex-direction: column;
        }
        .sport-card:hover { transform: translateY(-4px); border-color: rgba(255,255,255,0.25); box-shadow: var(--shadow-glow); }
        .sport-card .card-img {
            height: 200px; overflow: hidden; position: relative;
        }
        .sport-card .card-img img { width: 100%; height: 100%; object-fit: cover; transition: var(--transition); }
        .sport-card:hover .card-img img { transform: scale(1.04); }
        .sport-card .card-img .overlay {
            position: absolute; bottom: 0; left: 0; right: 0;
            padding: 16px 20px;
            background: linear-gradient(transparent, rgba(0,0,0,0.7));
        }
        .sport-card .card-img .overlay .badge { font-size: 0.7rem; }
        .sport-card .card-body { padding: 22px 24px 24px; flex: 1; display: flex; flex-direction: column; }
        .sport-card .card-body h3 { font-size: 1.2rem; font-weight: 700; color: #fff; margin-bottom: 8px; }
        .sport-card .card-body p { font-size: 0.92rem; color: rgba(255,255,255,0.65); line-height: 1.7; flex: 1; }
        .sport-card .card-body .btn { align-self: flex-start; margin-top: 16px; }

        @media (max-width: 768px) {
            .sports-grid { grid-template-columns: 1fr; gap: 20px; }
            .sport-card .card-img { height: 160px; }
        }

        /* ===== Latest News / CMS Section ===== */
        .news-section { background: var(--color-bg); }
        .news-grid {
            display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px;
        }
        .news-card {
            background: #fff; border-radius: var(--radius-md);
            overflow: hidden; border: 1px solid var(--color-border);
            box-shadow: var(--shadow-sm); transition: var(--transition);
            display: flex; flex-direction: column;
        }
        .news-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
        .news-card .news-img {
            height: 180px; overflow: hidden; background: var(--color-dark);
        }
        .news-card .news-img img { width: 100%; height: 100%; object-fit: cover; transition: var(--transition); }
        .news-card:hover .news-img img { transform: scale(1.04); }
        .news-card .news-body { padding: 20px 22px 22px; flex: 1; display: flex; flex-direction: column; }
        .news-card .news-meta {
            display: flex; align-items: center; gap: 12px;
            font-size: 0.8rem; color: var(--color-text-light); margin-bottom: 8px;
        }
        .news-card .news-meta .badge { font-size: 0.68rem; padding: 2px 12px; }
        .news-card .news-body h3 { font-size: 1.05rem; font-weight: 700; color: var(--color-dark); margin-bottom: 8px; line-height: 1.5; }
        .news-card .news-body h3 a { color: inherit; text-decoration: none; }
        .news-card .news-body h3 a:hover { color: var(--color-primary); }
        .news-card .news-body p { font-size: 0.9rem; color: var(--color-text-light); line-height: 1.7; flex: 1; }
        .news-card .news-body .news-date {
            font-size: 0.78rem; color: var(--color-text-light); margin-top: 12px;
            display: flex; align-items: center; gap: 6px;
        }

        .news-empty {
            grid-column: 1 / -1; text-align: center; padding: 48px 24px;
            background: #fff; border-radius: var(--radius-md);
            border: 1px dashed var(--color-border);
            color: var(--color-text-light); font-size: 1rem;
        }

        @media (max-width: 768px) {
            .news-grid { grid-template-columns: 1fr; gap: 18px; }
            .news-card .news-img { height: 150px; }
        }

        /* ===== Stats / Evidence Section ===== */
        .stats-section {
            background: linear-gradient(135deg, var(--color-dark) 0%, var(--color-dark-card) 100%);
            position: relative; overflow: hidden;
        }
        .stats-section::after {
            content: ''; position: absolute; top: -50%; right: -30%;
            width: 600px; height: 600px; border-radius: 50%;
            background: radial-gradient(circle, rgba(211,47,47,0.12) 0%, transparent 70%);
            pointer-events: none;
        }
        .stats-grid {
            display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px;
            position: relative; z-index: 2;
        }
        .stat-card {
            text-align: center; padding: 32px 16px;
            border-radius: var(--radius-md);
            background: rgba(255,255,255,0.04);
            border: 1px solid rgba(255,255,255,0.06);
            transition: var(--transition);
        }
        .stat-card:hover { background: rgba(255,255,255,0.08); transform: translateY(-4px); }
        .stat-card .stat-icon { font-size: 2rem; color: var(--color-primary-light); margin-bottom: 12px; }
        .stat-card .stat-number { font-size: 2.2rem; font-weight: 900; color: #fff; display: block; }
        .stat-card .stat-label { font-size: 0.9rem; color: rgba(255,255,255,0.60); margin-top: 4px; }

        @media (max-width: 900px) {
            .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 20px; }
        }
        @media (max-width: 520px) {
            .stats-grid { grid-template-columns: 1fr 1fr; gap: 14px; }
            .stat-card { padding: 24px 12px; }
            .stat-card .stat-number { font-size: 1.6rem; }
        }

        /* ===== FAQ Section ===== */
        .faq-section { background: var(--color-bg-alt); }
        .faq-list { max-width: 780px; margin: 0 auto; }
        .faq-item {
            background: #fff; border-radius: var(--radius-sm);
            border: 1px solid var(--color-border); margin-bottom: 14px;
            overflow: hidden; transition: var(--transition);
        }
        .faq-item:hover { border-color: rgba(211,47,47,0.20); box-shadow: var(--shadow-sm); }
        .faq-question {
            display: flex; align-items: center; gap: 14px;
            padding: 18px 22px; font-size: 1rem; font-weight: 600;
            color: var(--color-dark); cursor: pointer;
            background: none; border: none; width: 100%; text-align: left;
            transition: var(--transition);
        }
        .faq-question i { color: var(--color-primary); font-size: 1.2rem; transition: var(--transition); }
        .faq-question[aria-expanded="true"] i { transform: rotate(180deg); }
        .faq-question:hover { background: rgba(211,47,47,0.04); }
        .faq-answer {
            padding: 0 22px 18px; font-size: 0.95rem;
            color: var(--color-text-light); line-height: 1.8;
            display: none;
        }
        .faq-answer.open { display: block; }

        @media (max-width: 640px) {
            .faq-question { padding: 14px 16px; font-size: 0.95rem; }
            .faq-answer { padding: 0 16px 14px; font-size: 0.9rem; }
        }

        /* ===== CTA Section ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
            position: relative; overflow: hidden;
        }
        .cta-section::before {
            content: ''; position: absolute; inset: 0;
            background: url('/assets/images/backpic/back-3.png') center/cover no-repeat;
            opacity: 0.10; mix-blend-mode: overlay;
        }
        .cta-section .container { position: relative; z-index: 2; text-align: center; }
        .cta-section h2 { font-size: 2rem; font-weight: 800; color: #fff; margin-bottom: 14px; }
        .cta-section p { font-size: 1.1rem; color: rgba(255,255,255,0.85); max-width: 600px; margin: 0 auto 28px; }
        .cta-actions { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }
        .cta-actions .btn-outline { border-color: rgba(255,255,255,0.6); }
        .cta-actions .btn-outline:hover { border-color: #fff; background: rgba(255,255,255,0.10); }

        @media (max-width: 640px) {
            .cta-section h2 { font-size: 1.5rem; }
            .cta-section p { font-size: 0.95rem; }
            .cta-actions { flex-direction: column; align-items: center; }
            .cta-actions .btn { width: 100%; max-width: 280px; justify-content: center; }
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--color-dark); color: rgba(255,255,255,0.70);
            padding: 48px 0 24px;
        }
        .footer-grid {
            display: grid; grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 32px; margin-bottom: 32px;
        }
        .footer-brand .site-logo { font-size: 1.25rem; margin-bottom: 12px; display: inline-flex; color: #fff; }
        .footer-brand .site-logo span { -webkit-text-fill-color: #fff; }
        .footer-brand p { font-size: 0.9rem; line-height: 1.8; max-width: 320px; }
        .footer-col h4 { font-size: 1rem; font-weight: 700; color: #fff; margin-bottom: 16px; }
        .footer-col ul li { margin-bottom: 10px; }
        .footer-col ul li a { font-size: 0.9rem; color: rgba(255,255,255,0.60); text-decoration: none; transition: var(--transition); }
        .footer-col ul li a:hover { color: #fff; padding-left: 4px; }
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.08);
            padding-top: 20px; text-align: center;
            font-size: 0.85rem; color: rgba(255,255,255,0.45);
        }
        .footer-bottom a { color: rgba(255,255,255,0.55); }
        .footer-bottom a:hover { color: #fff; }

        @media (max-width: 900px) {
            .footer-grid { grid-template-columns: 1fr 1fr; gap: 28px; }
        }
        @media (max-width: 560px) {
            .footer-grid { grid-template-columns: 1fr; gap: 24px; text-align: center; }
            .footer-brand p { max-width: 100%; }
            .footer-col ul li a:hover { padding-left: 0; }
        }

        /* ===== Utility ===== */
        .text-center { text-align: center; }
        .mt-16 { margin-top: 16px; }
        .mb-16 { margin-bottom: 16px; }
        .gap-8 { gap: 8px; }
        .flex-center { display: flex; align-items: center; justify-content: center; }

        /* Foundation override for consistency */
        .row { max-width: var(--max-width); }
        .button { border-radius: 50px; font-weight: 600; transition: var(--transition); }
        .button.primary { background: var(--color-primary); }
        .button.primary:hover { background: var(--color-primary-dark); }

        /* focus visible for all interactive */
        :focus-visible { outline: 3px solid var(--color-primary); outline-offset: 2px; border-radius: 4px; }

/* roulang page: article */
/* ===== 设计变量 ===== */
        :root {
            --primary: #e63946;
            --primary-dark: #c1121f;
            --primary-light: #ff6b7a;
            --secondary: #1d3557;
            --secondary-light: #2b4d7a;
            --accent: #f4a261;
            --accent-light: #f9c78a;
            --bg-body: #f8f9fa;
            --bg-card: #ffffff;
            --bg-dark: #1a1a2e;
            --bg-footer: #0f0f1a;
            --text-primary: #1a1a2e;
            --text-secondary: #4a4a6a;
            --text-muted: #8888a0;
            --text-light: #ffffff;
            --border-color: #e8e8f0;
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
            --shadow-md: 0 6px 24px rgba(0,0,0,0.10);
            --shadow-lg: 0 12px 40px rgba(0,0,0,0.14);
            --shadow-xl: 0 20px 60px rgba(0,0,0,0.18);
            --font-sans: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
            --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
            --max-width: 1200px;
            --header-height: 72px;
            --bottom-nav-height: 64px;
        }

        /* ===== Reset & Base ===== */
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; font-size: 16px; }
        body {
            font-family: var(--font-sans);
            background: var(--bg-body);
            color: var(--text-primary);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            padding-top: var(--header-height);
            padding-bottom: var(--bottom-nav-height);
        }
        a { color: var(--primary); text-decoration: none; transition: color var(--transition); }
        a:hover, a:focus { color: var(--primary-dark); }
        a:focus-visible { outline: 3px solid var(--primary-light); outline-offset: 2px; border-radius: 4px; }
        img { max-width: 100%; height: auto; display: block; border-radius: var(--radius-sm); }
        ul, ol { list-style: none; }
        h1, h2, h3, h4, h5, h6 { line-height: 1.3; font-weight: 700; color: var(--text-primary); }
        .container { max-width: var(--max-width); margin: 0 auto; padding: 0 20px; }

        /* ===== Header / 导航 ===== */
        .site-header {
            position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
            background: rgba(255,255,255,0.92);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--border-color);
            height: var(--header-height);
            display: flex; align-items: center;
            box-shadow: 0 1px 12px rgba(0,0,0,0.04);
        }
        .site-header .container {
            display: flex; align-items: center; justify-content: space-between;
            width: 100%; gap: 20px;
        }
        .site-logo {
            display: flex; align-items: center; gap: 10px;
            font-size: 1.4rem; font-weight: 800; color: var(--secondary) !important;
            letter-spacing: -0.3px; white-space: nowrap;
        }
        .site-logo i { color: var(--primary); font-size: 1.6rem; }
        .site-logo span { background: linear-gradient(135deg, var(--secondary), var(--primary)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
        .main-nav { display: flex; align-items: center; gap: 8px; flex-wrap: nowrap; }
        .main-nav a {
            padding: 8px 18px; border-radius: 40px; font-size: 0.95rem;
            font-weight: 600; color: var(--text-secondary); transition: all var(--transition);
            position: relative; white-space: nowrap;
        }
        .main-nav a:hover { color: var(--primary); background: rgba(230,57,70,0.08); }
        .main-nav a.active { color: var(--text-light); background: var(--primary); box-shadow: 0 4px 14px rgba(230,57,70,0.30); }
        .header-cta { display: flex; align-items: center; gap: 12px; flex-shrink: 0; }
        .btn {
            display: inline-flex; align-items: center; gap: 8px;
            padding: 12px 28px; border-radius: 40px; font-weight: 700;
            font-size: 0.95rem; border: none; cursor: pointer;
            transition: all var(--transition); line-height: 1.2;
        }
        .btn-primary {
            background: var(--primary); color: var(--text-light);
            box-shadow: 0 4px 14px rgba(230,57,70,0.30);
        }
        .btn-primary:hover, .btn-primary:focus {
            background: var(--primary-dark); color: var(--text-light);
            transform: translateY(-2px); box-shadow: 0 8px 24px rgba(230,57,70,0.40);
        }
        .btn-secondary {
            background: var(--secondary); color: var(--text-light);
            box-shadow: 0 4px 14px rgba(29,53,87,0.25);
        }
        .btn-secondary:hover, .btn-secondary:focus {
            background: var(--secondary-light); color: var(--text-light);
            transform: translateY(-2px); box-shadow: 0 8px 24px rgba(29,53,87,0.35);
        }
        .btn-outline {
            background: transparent; color: var(--primary); border: 2px solid var(--primary);
        }
        .btn-outline:hover, .btn-outline:focus {
            background: var(--primary); color: var(--text-light); transform: translateY(-2px);
        }
        .btn-sm { padding: 8px 20px; font-size: 0.85rem; }

        /* ===== 移动端底部 Tab 导航 ===== */
        .mobile-bottom-nav {
            display: none;
            position: fixed; bottom: 0; left: 0; right: 0; z-index: 1100;
            background: rgba(255,255,255,0.96);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-top: 1px solid var(--border-color);
            height: var(--bottom-nav-height);
            box-shadow: 0 -2px 12px rgba(0,0,0,0.06);
            justify-content: space-around; align-items: center;
            padding: 0 8px;
        }
        .mobile-bottom-nav a {
            display: flex; flex-direction: column; align-items: center; gap: 2px;
            padding: 6px 12px; border-radius: 12px;
            font-size: 0.7rem; font-weight: 600; color: var(--text-muted);
            transition: all var(--transition); min-width: 64px;
        }
        .mobile-bottom-nav a i { font-size: 1.3rem; transition: all var(--transition); }
        .mobile-bottom-nav a.active { color: var(--primary); }
        .mobile-bottom-nav a.active i { transform: scale(1.1); }
        .mobile-bottom-nav a:hover { color: var(--primary); background: rgba(230,57,70,0.06); }

        /* ===== Article Hero 板块 ===== */
        .article-hero {
            position: relative;
            padding: 60px 0 50px;
            background: linear-gradient(135deg, var(--secondary) 0%, #16213e 60%, #0f3460 100%);
            overflow: hidden;
            min-height: 320px;
            display: flex; align-items: center;
        }
        .article-hero::before {
            content: '';
            position: absolute; inset: 0;
            background: url('/assets/images/backpic/back-2.webp') center center / cover no-repeat;
            opacity: 0.15;
            mix-blend-mode: overlay;
        }
        .article-hero::after {
            content: '';
            position: absolute; inset: 0;
            background: radial-gradient(ellipse at 20% 50%, rgba(230,57,70,0.20) 0%, transparent 70%);
        }
        .article-hero .container { position: relative; z-index: 2; text-align: center; }
        .article-hero .article-meta {
            display: flex; align-items: center; justify-content: center; gap: 16px;
            flex-wrap: wrap; margin-bottom: 18px;
        }
        .article-hero .article-category {
            display: inline-flex; align-items: center; gap: 6px;
            background: rgba(230,57,70,0.20); color: #ff6b7a;
            padding: 6px 18px; border-radius: 40px; font-size: 0.85rem; font-weight: 700;
            backdrop-filter: blur(4px);
        }
        .article-hero .article-date {
            color: rgba(255,255,255,0.70); font-size: 0.9rem;
            display: flex; align-items: center; gap: 6px;
        }
        .article-hero h1 {
            font-size: 2.6rem; font-weight: 900; color: var(--text-light);
            max-width: 800px; margin: 0 auto; line-height: 1.25;
            text-shadow: 0 2px 20px rgba(0,0,0,0.25);
            letter-spacing: -0.5px;
        }
        .article-hero .hero-divider {
            width: 60px; height: 4px; background: var(--primary);
            border-radius: 4px; margin: 20px auto 0;
        }

        /* ===== 文章正文板块 ===== */
        .article-body {
            padding: 50px 0 30px;
            background: var(--bg-body);
        }
        .article-content {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            padding: 40px 50px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
            max-width: 860px; margin: 0 auto;
        }
        .article-content h2 { font-size: 1.6rem; margin: 32px 0 16px; color: var(--secondary); }
        .article-content h3 { font-size: 1.3rem; margin: 24px 0 12px; color: var(--secondary); }
        .article-content p { margin-bottom: 18px; color: var(--text-secondary); font-size: 1.05rem; line-height: 1.8; }
        .article-content ul, .article-content ol { margin: 16px 0 20px 24px; list-style: disc; }
        .article-content li { margin-bottom: 6px; color: var(--text-secondary); font-size: 1.02rem; }
        .article-content img { border-radius: var(--radius-md); margin: 24px 0; box-shadow: var(--shadow-sm); }
        .article-content blockquote {
            border-left: 4px solid var(--primary);
            padding: 16px 24px; margin: 24px 0;
            background: rgba(230,57,70,0.04);
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            font-style: italic; color: var(--text-secondary);
        }
        .article-content a { font-weight: 600; }
        .article-not-found {
            text-align: center; padding: 60px 20px;
        }
        .article-not-found h2 { font-size: 2rem; color: var(--secondary); margin-bottom: 16px; }
        .article-not-found p { color: var(--text-muted); font-size: 1.1rem; margin-bottom: 24px; }

        /* ===== 文章亮点板块 ===== */
        .article-highlights {
            padding: 40px 0 50px;
            background: var(--bg-card);
        }
        .article-highlights .highlights-grid {
            display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px;
            max-width: 900px; margin: 0 auto;
        }
        .highlight-card {
            background: var(--bg-body); border-radius: var(--radius-md);
            padding: 28px 24px; text-align: center;
            border: 1px solid var(--border-color);
            transition: all var(--transition);
        }
        .highlight-card:hover {
            transform: translateY(-4px); box-shadow: var(--shadow-md);
            border-color: var(--primary-light);
        }
        .highlight-card i { font-size: 2.2rem; color: var(--primary); margin-bottom: 14px; }
        .highlight-card h4 { font-size: 1.1rem; margin-bottom: 8px; color: var(--secondary); }
        .highlight-card p { font-size: 0.92rem; color: var(--text-muted); line-height: 1.6; margin: 0; }

        /* ===== 相关推荐板块 ===== */
        .related-posts {
            padding: 50px 0;
            background: var(--bg-body);
        }
        .related-posts .section-title {
            text-align: center; font-size: 2rem; font-weight: 800;
            color: var(--secondary); margin-bottom: 12px;
        }
        .related-posts .section-sub {
            text-align: center; color: var(--text-muted); font-size: 1.05rem;
            margin-bottom: 36px; max-width: 600px; margin-left: auto; margin-right: auto;
        }
        .related-grid {
            display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px;
        }
        .related-card {
            background: var(--bg-card); border-radius: var(--radius-md);
            overflow: hidden; border: 1px solid var(--border-color);
            transition: all var(--transition); cursor: pointer;
        }
        .related-card:hover {
            transform: translateY(-6px); box-shadow: var(--shadow-lg);
            border-color: transparent;
        }
        .related-card .card-img {
            height: 180px; overflow: hidden;
        }
        .related-card .card-img img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s ease; }
        .related-card:hover .card-img img { transform: scale(1.06); }
        .related-card .card-body { padding: 18px 20px 22px; }
        .related-card .card-tag {
            display: inline-block; padding: 3px 12px; border-radius: 30px;
            background: rgba(230,57,70,0.10); color: var(--primary);
            font-size: 0.75rem; font-weight: 700; margin-bottom: 8px;
        }
        .related-card h3 { font-size: 1.05rem; font-weight: 700; color: var(--secondary); margin-bottom: 6px; line-height: 1.4; }
        .related-card p { font-size: 0.88rem; color: var(--text-muted); margin: 0; line-height: 1.6; }

        /* ===== CTA 板块 ===== */
        .cta-section {
            padding: 60px 0; position: relative; overflow: hidden;
            background: linear-gradient(135deg, var(--secondary) 0%, #0f3460 100%);
            text-align: center;
        }
        .cta-section::before {
            content: '';
            position: absolute; inset: 0;
            background: url('/assets/images/backpic/back-3.png') center center / cover no-repeat;
            opacity: 0.08; mix-blend-mode: overlay;
        }
        .cta-section .container { position: relative; z-index: 2; }
        .cta-section h2 { font-size: 2.2rem; font-weight: 800; color: var(--text-light); margin-bottom: 14px; }
        .cta-section p { font-size: 1.1rem; color: rgba(255,255,255,0.80); max-width: 600px; margin: 0 auto 28px; }
        .cta-actions { display: flex; align-items: center; justify-content: center; gap: 14px; flex-wrap: wrap; }

        /* ===== FAQ 板块 ===== */
        .faq-section {
            padding: 50px 0 60px;
            background: var(--bg-card);
        }
        .faq-section .section-title {
            text-align: center; font-size: 2rem; font-weight: 800;
            color: var(--secondary); margin-bottom: 36px;
        }
        .faq-grid {
            max-width: 800px; margin: 0 auto;
            display: grid; gap: 14px;
        }
        .faq-item {
            background: var(--bg-body); border-radius: var(--radius-md);
            padding: 20px 24px;
            border: 1px solid var(--border-color);
            transition: all var(--transition);
        }
        .faq-item:hover { border-color: var(--primary-light); box-shadow: var(--shadow-sm); }
        .faq-item .faq-q {
            font-weight: 700; font-size: 1.05rem; color: var(--secondary);
            display: flex; align-items: center; gap: 10px; margin-bottom: 6px;
        }
        .faq-item .faq-q i { color: var(--primary); font-size: 1.1rem; }
        .faq-item .faq-a {
            color: var(--text-secondary); font-size: 0.95rem;
            line-height: 1.7; padding-left: 28px;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-footer); color: rgba(255,255,255,0.70);
            padding: 50px 0 30px;
        }
        .site-footer .footer-grid {
            display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 32px;
            margin-bottom: 30px;
        }
        .site-footer .site-logo { color: var(--text-light) !important; margin-bottom: 14px; }
        .site-footer .site-logo span { -webkit-text-fill-color: var(--text-light); background: none; }
        .site-footer .footer-brand p { font-size: 0.9rem; line-height: 1.7; color: rgba(255,255,255,0.60); max-width: 340px; }
        .site-footer h4 { color: var(--text-light); font-size: 1rem; font-weight: 700; margin-bottom: 16px; }
        .site-footer ul li { margin-bottom: 10px; }
        .site-footer ul li a { color: rgba(255,255,255,0.60); font-size: 0.9rem; transition: all var(--transition); }
        .site-footer ul li a:hover { color: var(--primary-light); padding-left: 4px; }
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.08);
            padding-top: 20px; text-align: center;
            font-size: 0.85rem; color: rgba(255,255,255,0.45);
        }
        .footer-bottom a { color: rgba(255,255,255,0.55); }
        .footer-bottom a:hover { color: var(--primary-light); }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .article-hero h1 { font-size: 2.2rem; }
            .highlights-grid { grid-template-columns: repeat(2, 1fr); }
            .related-grid { grid-template-columns: repeat(2, 1fr); }
            .site-footer .footer-grid { grid-template-columns: 1fr 1fr; gap: 24px; }
        }
        @media (max-width: 768px) {
            body { padding-top: 60px; padding-bottom: 56px; }
            :root { --header-height: 60px; --bottom-nav-height: 56px; }
            .site-header .container { padding: 0 14px; }
            .site-logo { font-size: 1.15rem; }
            .site-logo i { font-size: 1.3rem; }
            .main-nav a { padding: 6px 14px; font-size: 0.85rem; }
            .header-cta .btn { padding: 6px 16px; font-size: 0.8rem; }
            .header-cta .btn i { font-size: 0.8rem; }
            .mobile-bottom-nav { display: flex; }
            .article-hero { padding: 40px 0 36px; min-height: 240px; }
            .article-hero h1 { font-size: 1.7rem; }
            .article-hero .article-meta { gap: 10px; font-size: 0.85rem; }
            .article-content { padding: 24px 20px; }
            .article-content h2 { font-size: 1.3rem; }
            .article-content p { font-size: 0.95rem; }
            .highlights-grid { grid-template-columns: 1fr; max-width: 400px; }
            .related-grid { grid-template-columns: 1fr; max-width: 420px; margin: 0 auto; }
            .related-posts .section-title { font-size: 1.6rem; }
            .cta-section h2 { font-size: 1.6rem; }
            .cta-section p { font-size: 0.95rem; }
            .faq-section .section-title { font-size: 1.6rem; }
            .faq-item { padding: 16px 18px; }
            .site-footer .footer-grid { grid-template-columns: 1fr; gap: 20px; }
            .site-footer { padding: 36px 0 20px; }
        }
        @media (max-width: 520px) {
            .site-logo span { font-size: 1rem; }
            .main-nav { gap: 4px; }
            .main-nav a { padding: 5px 10px; font-size: 0.78rem; }
            .header-cta .btn { padding: 5px 12px; font-size: 0.75rem; }
            .article-hero h1 { font-size: 1.35rem; }
            .article-hero .article-category { font-size: 0.75rem; padding: 4px 12px; }
            .article-content { padding: 18px 14px; }
            .article-content h2 { font-size: 1.15rem; }
            .article-content p { font-size: 0.9rem; }
            .highlight-card { padding: 20px 16px; }
            .related-card .card-img { height: 140px; }
            .cta-section h2 { font-size: 1.3rem; }
            .cta-actions { flex-direction: column; gap: 10px; }
            .cta-actions .btn { width: 100%; justify-content: center; }
            .faq-item .faq-q { font-size: 0.95rem; }
        }
        @media (min-width: 769px) {
            .mobile-bottom-nav { display: none !important; }
        }

/* roulang page: category1 */
/* ===== Design Variables ===== */
        :root {
            --primary: #1e3a5f;
            --primary-dark: #0f1f33;
            --primary-light: #2d5a8a;
            --secondary: #dc2626;
            --secondary-light: #f87171;
            --accent: #f59e0b;
            --accent-light: #fbbf24;
            --bg-body: #f0f4f8;
            --bg-card: #ffffff;
            --bg-dark: #0f1f33;
            --text-primary: #1e293b;
            --text-secondary: #475569;
            --text-light: #94a3b8;
            --text-white: #f8fafc;
            --border-color: #e2e8f0;
            --border-light: #f1f5f9;
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06), 0 1px 2px rgba(0, 0, 0, 0.04);
            --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08), 0 2px 8px rgba(0, 0, 0, 0.04);
            --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.12), 0 4px 16px rgba(0, 0, 0, 0.06);
            --shadow-xl: 0 24px 64px rgba(0, 0, 0, 0.16);
            --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
            --font-body: 'Segoe UI', system-ui, -apple-system, 'Helvetica Neue', Arial, sans-serif;
            --container-max: 1200px;
            --header-h: 72px;
            --tab-bar-h: 68px;
        }

        /* ===== Reset & Base ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

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

        body {
            font-family: var(--font-body);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-primary);
            background: var(--bg-body);
            margin: 0;
            padding: 0;
            padding-top: var(--header-h);
            padding-bottom: var(--tab-bar-h);
        }

        @media screen and (min-width: 1024px) {
            body {
                padding-bottom: 0;
            }
        }

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

        a:hover {
            color: var(--secondary);
        }

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

        ul,
        ol {
            list-style: none;
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            line-height: 1.25;
            font-weight: 700;
            color: var(--text-primary);
        }

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px;
        }

        .section-padding {
            padding: 80px 0;
        }

        @media screen and (max-width: 768px) {
            .section-padding {
                padding: 56px 0;
            }
        }

        /* ===== Header / Nav ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--header-h);
            background: rgba(15, 31, 51, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            transition: background var(--transition);
        }

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

        .site-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 22px;
            font-weight: 800;
            color: var(--text-white);
            letter-spacing: 0.5px;
            transition: opacity var(--transition);
        }

        .site-logo i {
            color: var(--accent);
            font-size: 26px;
        }

        .site-logo span {
            background: linear-gradient(135deg, #f8fafc, #e2e8f0);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .site-logo:hover {
            opacity: 0.85;
            color: var(--text-white);
        }

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

        .main-nav a {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 18px;
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-weight: 500;
            color: rgba(255, 255, 255, 0.75);
            transition: all var(--transition);
            position: relative;
        }

        .main-nav a::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%) scaleX(0);
            width: 60%;
            height: 2px;
            background: var(--accent);
            border-radius: 4px;
            transition: transform var(--transition);
        }

        .main-nav a:hover {
            color: var(--text-white);
            background: rgba(255, 255, 255, 0.06);
        }

        .main-nav a:hover::after {
            transform: translateX(-50%) scaleX(1);
        }

        .main-nav a.active {
            color: var(--text-white);
            background: rgba(255, 255, 255, 0.08);
        }

        .main-nav a.active::after {
            transform: translateX(-50%) scaleX(1);
        }

        .header-cta .btn {
            padding: 10px 24px;
            font-size: 14px;
            font-weight: 600;
            border-radius: var(--radius-sm);
            transition: all var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .header-cta .btn-primary {
            background: var(--secondary);
            color: #fff;
            border: none;
        }

        .header-cta .btn-primary:hover {
            background: #b91c1c;
            transform: translateY(-1px);
            box-shadow: 0 4px 20px rgba(220, 38, 38, 0.35);
        }

        /* ===== Hero ===== */
        .hero-section {
            position: relative;
            min-height: 82vh;
            display: flex;
            align-items: center;
            justify-content: center;
            overflow: hidden;
            background: var(--bg-dark);
            margin-top: calc(-1 * var(--header-h));
            padding-top: var(--header-h);
        }

        .hero-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            opacity: 0.35;
            transform: scale(1.05);
            animation: heroZoom 20s ease-in-out infinite alternate;
        }

        @keyframes heroZoom {
            0% {
                transform: scale(1.05);
            }
            100% {
                transform: scale(1.15);
            }
        }

        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15, 31, 51, 0.88) 0%, rgba(30, 58, 95, 0.72) 50%, rgba(15, 31, 51, 0.88) 100%);
            z-index: 1;
        }

        .hero-section .container {
            position: relative;
            z-index: 2;
            text-align: center;
            padding: 80px 20px;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(245, 158, 11, 0.18);
            border: 1px solid rgba(245, 158, 11, 0.3);
            color: var(--accent-light);
            padding: 6px 20px;
            border-radius: 100px;
            font-size: 14px;
            font-weight: 500;
            margin-bottom: 24px;
            letter-spacing: 0.3px;
            backdrop-filter: blur(4px);
        }

        .hero-badge i {
            font-size: 14px;
        }

        .hero-section h1 {
            font-size: 52px;
            font-weight: 800;
            color: var(--text-white);
            margin-bottom: 20px;
            letter-spacing: -0.5px;
            line-height: 1.15;
        }

        .hero-section h1 .highlight {
            background: linear-gradient(135deg, var(--accent), var(--accent-light));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .hero-sub {
            font-size: 20px;
            color: rgba(255, 255, 255, 0.75);
            max-width: 680px;
            margin: 0 auto 36px;
            line-height: 1.6;
        }

        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            justify-content: center;
        }

        .hero-actions .btn {
            padding: 14px 36px;
            font-size: 16px;
            font-weight: 600;
            border-radius: var(--radius-sm);
            transition: all var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 10px;
        }

        .hero-actions .btn-primary {
            background: var(--secondary);
            color: #fff;
            border: none;
            box-shadow: 0 4px 24px rgba(220, 38, 38, 0.4);
        }

        .hero-actions .btn-primary:hover {
            background: #b91c1c;
            transform: translateY(-2px);
            box-shadow: 0 8px 32px rgba(220, 38, 38, 0.5);
        }

        .hero-actions .btn-outline {
            background: transparent;
            color: var(--text-white);
            border: 2px solid rgba(255, 255, 255, 0.3);
        }

        .hero-actions .btn-outline:hover {
            border-color: var(--accent);
            color: var(--accent-light);
            background: rgba(245, 158, 11, 0.08);
            transform: translateY(-2px);
        }

        .hero-stats {
            display: flex;
            flex-wrap: wrap;
            gap: 40px;
            justify-content: center;
            margin-top: 48px;
            padding-top: 40px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
        }

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

        .hero-stat-number {
            font-size: 32px;
            font-weight: 800;
            color: var(--accent-light);
            line-height: 1.2;
        }

        .hero-stat-label {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.6);
            margin-top: 4px;
        }

        @media screen and (max-width: 768px) {
            .hero-section {
                min-height: 70vh;
            }
            .hero-section h1 {
                font-size: 32px;
            }
            .hero-sub {
                font-size: 17px;
            }
            .hero-stats {
                gap: 24px;
            }
            .hero-stat-number {
                font-size: 26px;
            }
        }

        @media screen and (max-width: 520px) {
            .hero-section h1 {
                font-size: 26px;
            }
            .hero-sub {
                font-size: 15px;
            }
            .hero-actions .btn {
                padding: 12px 24px;
                font-size: 14px;
            }
        }

        /* ===== Section Headers ===== */
        .section-header {
            text-align: center;
            margin-bottom: 52px;
        }

        .section-header h2 {
            font-size: 36px;
            font-weight: 800;
            color: var(--text-primary);
            margin-bottom: 14px;
            letter-spacing: -0.3px;
        }

        .section-header p {
            font-size: 18px;
            color: var(--text-secondary);
            max-width: 600px;
            margin: 0 auto;
            line-height: 1.6;
        }

        .section-header .header-icon {
            font-size: 40px;
            color: var(--secondary);
            margin-bottom: 12px;
            display: block;
        }

        @media screen and (max-width: 768px) {
            .section-header h2 {
                font-size: 28px;
            }
            .section-header p {
                font-size: 16px;
            }
        }

        /* ===== Features Section ===== */
        .features-section {
            background: var(--bg-card);
        }

        .features-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 32px;
        }

        .feature-card {
            background: var(--bg-body);
            border-radius: var(--radius-lg);
            padding: 36px 28px;
            text-align: center;
            transition: all var(--transition);
            border: 1px solid var(--border-color);
        }

        .feature-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: transparent;
        }

        .feature-icon {
            width: 64px;
            height: 64px;
            margin: 0 auto 20px;
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            border-radius: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 28px;
            color: var(--accent-light);
            transition: transform var(--transition);
        }

        .feature-card:hover .feature-icon {
            transform: scale(1.08) rotate(-2deg);
        }

        .feature-card h3 {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 10px;
        }

        .feature-card p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.6;
        }

        @media screen and (max-width: 900px) {
            .features-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media screen and (max-width: 560px) {
            .features-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ===== Sports Categories ===== */
        .sports-section {
            background: var(--bg-body);
        }

        .sports-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }

        .sport-card {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            border: 1px solid var(--border-color);
        }

        .sport-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: transparent;
        }

        .sport-card-image {
            position: relative;
            height: 200px;
            overflow: hidden;
        }

        .sport-card-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }

        .sport-card:hover .sport-card-image img {
            transform: scale(1.08);
        }

        .sport-card-image .sport-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(15, 31, 51, 0.7) 0%, transparent 60%);
        }

        .sport-card-image .sport-tag {
            position: absolute;
            top: 16px;
            left: 16px;
            background: var(--secondary);
            color: #fff;
            padding: 4px 14px;
            border-radius: 100px;
            font-size: 12px;
            font-weight: 600;
            letter-spacing: 0.3px;
        }

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

        .sport-card-body h3 {
            font-size: 19px;
            font-weight: 700;
            margin-bottom: 8px;
        }

        .sport-card-body p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.6;
            margin-bottom: 16px;
        }

        .sport-card-body .btn-sm {
            padding: 8px 20px;
            font-size: 13px;
            font-weight: 600;
            border-radius: var(--radius-sm);
            background: var(--primary);
            color: #fff;
            border: none;
            transition: all var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .sport-card-body .btn-sm:hover {
            background: var(--primary-light);
            transform: translateY(-1px);
        }

        @media screen and (max-width: 900px) {
            .sports-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media screen and (max-width: 560px) {
            .sports-grid {
                grid-template-columns: 1fr;
            }
            .sport-card-image {
                height: 170px;
            }
        }

        /* ===== How It Works ===== */
        .how-section {
            background: var(--bg-card);
        }

        .how-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 32px;
            position: relative;
        }

        .how-grid::before {
            content: '';
            position: absolute;
            top: 48px;
            left: 15%;
            right: 15%;
            height: 2px;
            background: linear-gradient(to right, var(--primary), var(--accent), var(--primary));
            opacity: 0.2;
        }

        @media screen and (max-width: 768px) {
            .how-grid::before {
                display: none;
            }
        }

        .how-step {
            text-align: center;
            position: relative;
        }

        .how-step-number {
            width: 56px;
            height: 56px;
            margin: 0 auto 20px;
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            font-weight: 800;
            color: var(--accent-light);
            box-shadow: 0 4px 20px rgba(30, 58, 95, 0.25);
            position: relative;
            z-index: 2;
        }

        .how-step h3 {
            font-size: 19px;
            font-weight: 700;
            margin-bottom: 8px;
        }

        .how-step p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.6;
            max-width: 280px;
            margin: 0 auto;
        }

        @media screen and (max-width: 768px) {
            .how-grid {
                grid-template-columns: 1fr;
                gap: 40px;
            }
            .how-step p {
                max-width: 100%;
            }
        }

        /* ===== Popular Matches ===== */
        .matches-section {
            background: var(--bg-body);
        }

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

        .match-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 24px 20px;
            display: flex;
            align-items: center;
            gap: 20px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
            transition: all var(--transition);
        }

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

        .match-icon {
            width: 52px;
            height: 52px;
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            color: var(--accent-light);
            flex-shrink: 0;
        }

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

        .match-info h4 {
            font-size: 17px;
            font-weight: 700;
            margin-bottom: 4px;
        }

        .match-info p {
            font-size: 13px;
            color: var(--text-secondary);
        }

        .match-info .match-meta {
            display: flex;
            gap: 12px;
            margin-top: 6px;
            font-size: 12px;
            color: var(--text-light);
        }

        .match-info .match-meta i {
            margin-right: 4px;
        }

        .match-status {
            padding: 6px 16px;
            border-radius: 100px;
            font-size: 12px;
            font-weight: 600;
            flex-shrink: 0;
            background: rgba(220, 38, 38, 0.1);
            color: var(--secondary);
        }

        .match-status.live {
            background: rgba(220, 38, 38, 0.15);
            color: var(--secondary);
            animation: pulse-dot 2s ease-in-out infinite;
        }

        .match-status.upcoming {
            background: rgba(245, 158, 11, 0.12);
            color: #b45309;
        }

        @keyframes pulse-dot {
            0%,
            100% {
                opacity: 1;
            }
            50% {
                opacity: 0.6;
            }
        }

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

        /* ===== Community Section ===== */
        .community-section {
            background: var(--bg-dark);
            position: relative;
            overflow: hidden;
        }

        .community-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.webp') center center / cover no-repeat;
            opacity: 0.08;
        }

        .community-section .container {
            position: relative;
            z-index: 2;
        }

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

        .community-content h2 {
            font-size: 34px;
            font-weight: 800;
            color: var(--text-white);
            margin-bottom: 16px;
        }

        .community-content p {
            font-size: 17px;
            color: rgba(255, 255, 255, 0.7);
            line-height: 1.7;
            margin-bottom: 24px;
        }

        .community-features {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .community-features li {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 15px;
            color: rgba(255, 255, 255, 0.8);
        }

        .community-features li i {
            color: var(--accent);
            font-size: 16px;
            width: 20px;
            text-align: center;
        }

        .community-image img {
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-xl);
            width: 100%;
        }

        @media screen and (max-width: 820px) {
            .community-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .community-content h2 {
                font-size: 28px;
            }
            .community-image {
                order: -1;
            }
        }

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

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

        .faq-item {
            background: var(--bg-body);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-color);
            overflow: hidden;
            transition: all var(--transition);
        }

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

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 24px;
            cursor: pointer;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-primary);
            transition: color var(--transition);
            user-select: none;
        }

        .faq-question i {
            font-size: 14px;
            color: var(--text-light);
            transition: transform var(--transition);
        }

        .faq-item.active .faq-question i {
            transform: rotate(180deg);
            color: var(--secondary);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
            padding: 0 24px;
        }

        .faq-item.active .faq-answer {
            max-height: 300px;
            padding: 0 24px 20px;
        }

        .faq-answer p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        @media screen and (max-width: 560px) {
            .faq-question {
                padding: 14px 18px;
                font-size: 15px;
            }
            .faq-answer {
                padding: 0 18px;
            }
            .faq-item.active .faq-answer {
                padding: 0 18px 16px;
            }
        }

        /* ===== CTA Section ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--primary-dark), var(--primary));
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-3.png') center center / cover no-repeat;
            opacity: 0.06;
        }

        .cta-section .container {
            position: relative;
            z-index: 2;
            text-align: center;
            padding: 80px 20px;
        }

        .cta-section h2 {
            font-size: 36px;
            font-weight: 800;
            color: var(--text-white);
            margin-bottom: 14px;
        }

        .cta-section p {
            font-size: 18px;
            color: rgba(255, 255, 255, 0.7);
            max-width: 560px;
            margin: 0 auto 32px;
            line-height: 1.6;
        }

        .cta-section .btn {
            padding: 16px 44px;
            font-size: 17px;
            font-weight: 600;
            border-radius: var(--radius-sm);
            background: var(--secondary);
            color: #fff;
            border: none;
            transition: all var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 10px;
            box-shadow: 0 4px 24px rgba(220, 38, 38, 0.35);
        }

        .cta-section .btn:hover {
            background: #b91c1c;
            transform: translateY(-2px);
            box-shadow: 0 8px 40px rgba(220, 38, 38, 0.5);
        }

        @media screen and (max-width: 768px) {
            .cta-section h2 {
                font-size: 28px;
            }
            .cta-section p {
                font-size: 16px;
            }
            .cta-section .container {
                padding: 56px 20px;
            }
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(255, 255, 255, 0.7);
            padding: 60px 0 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }

        .footer-brand .site-logo {
            margin-bottom: 16px;
            font-size: 20px;
        }

        .footer-brand p {
            font-size: 14px;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.55);
            max-width: 340px;
        }

        .footer-col h4 {
            font-size: 15px;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 16px;
            letter-spacing: 0.3px;
        }

        .footer-col ul {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .footer-col ul li a {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.55);
            transition: all var(--transition);
        }

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

        .footer-bottom {
            padding: 24px 0;
            text-align: center;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.4);
        }

        .footer-bottom a {
            color: rgba(255, 255, 255, 0.5);
        }

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

        @media screen and (max-width: 820px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
            .footer-brand {
                grid-column: 1 / -1;
            }
        }

        @media screen and (max-width: 520px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
        }

        /* ===== Mobile Tab Bar ===== */
        .mobile-tab-bar {
            display: none;
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            height: var(--tab-bar-h);
            background: rgba(15, 31, 51, 0.96);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            z-index: 1000;
            align-items: center;
            justify-content: space-around;
            padding: 0 8px;
        }

        .mobile-tab-bar .tab-item {
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 2px;
            padding: 6px 12px;
            border-radius: var(--radius-sm);
            color: rgba(255, 255, 255, 0.45);
            font-size: 11px;
            font-weight: 500;
            transition: all var(--transition);
            flex: 1;
            max-width: 120px;
            text-decoration: none;
        }

        .mobile-tab-bar .tab-item i {
            font-size: 20px;
            transition: transform var(--transition);
        }

        .mobile-tab-bar .tab-item.active {
            color: var(--accent-light);
        }

        .mobile-tab-bar .tab-item.active i {
            transform: scale(1.1);
        }

        .mobile-tab-bar .tab-item:hover {
            color: var(--text-white);
        }

        @media screen and (max-width: 1023px) {
            .mobile-tab-bar {
                display: flex;
            }
        }

        @media screen and (min-width: 1024px) {
            .mobile-tab-bar {
                display: none !important;
            }
        }

        /* ===== Utility ===== */
        .text-center {
            text-align: center;
        }
        .mt-1 {
            margin-top: 8px;
        }
        .mt-2 {
            margin-top: 16px;
        }
        .mt-3 {
            margin-top: 24px;
        }
        .mt-4 {
            margin-top: 32px;
        }
        .mb-1 {
            margin-bottom: 8px;
        }
        .mb-2 {
            margin-bottom: 16px;
        }
        .mb-3 {
            margin-bottom: 24px;
        }
        .mb-4 {
            margin-bottom: 32px;
        }

        /* ===== Foundation Overrides ===== */
        .button {
            transition: all var(--transition);
        }
        .button:hover {
            transform: translateY(-1px);
        }

        .site-header .container,
        .hero-section .container,
        .site-footer .container {
            max-width: var(--container-max);
        }

        /* fix foundation default link color */
        a {
            color: var(--primary);
        }
        a:hover {
            color: var(--secondary);
        }

        /* ===== Scrollbar ===== */
        ::-webkit-scrollbar {
            width: 6px;
        }
        ::-webkit-scrollbar-track {
            background: var(--bg-body);
        }
        ::-webkit-scrollbar-thumb {
            background: var(--text-light);
            border-radius: 4px;
        }
        ::-webkit-scrollbar-thumb:hover {
            background: var(--text-secondary);
        }

        /* ===== Focus ===== */
        a:focus-visible,
        button:focus-visible,
        .btn:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
            border-radius: var(--radius-sm);
        }

        /* ===== Responsive tweaks ===== */
        @media screen and (max-width: 640px) {
            .main-nav a {
                padding: 6px 12px;
                font-size: 13px;
            }
            .header-cta .btn {
                padding: 8px 16px;
                font-size: 12px;
            }
            .site-logo {
                font-size: 18px;
            }
            .site-logo i {
                font-size: 20px;
            }
        }

        @media screen and (max-width: 480px) {
            .site-header .container {
                padding: 0 12px;
            }
            .main-nav a {
                padding: 6px 10px;
                font-size: 12px;
            }
            .header-cta .btn {
                padding: 6px 12px;
                font-size: 11px;
                gap: 4px;
            }
            .header-cta .btn i {
                font-size: 11px;
            }
            .site-logo {
                font-size: 16px;
                gap: 6px;
            }
            .site-logo i {
                font-size: 18px;
            }
        }