/* roulang page: index */
:root {
            --primary: #0f172a;
            --primary-light: #1e293b;
            --primary-dark: #0a0f1a;
            --accent: #f59e0b;
            --accent-dark: #d97706;
            --accent-light: #fbbf24;
            --blue-accent: #2563eb;
            --blue-light: #3b82f6;
            --text-light: #f1f5f9;
            --text-muted: #94a3b8;
            --text-dark: #1e293b;
            --border-color: #334155;
            --border-light: #475569;
            --bg-card: #1e293b;
            --bg-section: #0f172a;
            --bg-alt: #1a2332;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --shadow-sm: 0 2px 8px rgba(0,0,0,0.2);
            --shadow-md: 0 8px 30px rgba(0,0,0,0.3);
            --shadow-lg: 0 16px 48px rgba(0,0,0,0.4);
            --shadow-glow: 0 0 30px rgba(37,99,235,0.15);
            --transition: all 0.3s cubic-bezier(0.4,0,0.2,1);
            --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
        }
        *,*::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-section);
            color: var(--text-light);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }
        a { color: var(--blue-light); text-decoration: none; transition: var(--transition); }
        a:hover { color: var(--accent); text-decoration: none; }
        a:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 4px; }
        img { max-width: 100%; height: auto; display: block; border-radius: var(--radius-sm); }
        .container { max-width: 1200px; padding: 0 20px; margin: 0 auto; }
        .section-padding { padding: 80px 0; }
        .section-title { font-size: 2.2rem; font-weight: 700; margin-bottom: 0.75rem; color: var(--text-light); letter-spacing: -0.02em; }
        .section-subtitle { font-size: 1.1rem; color: var(--text-muted); max-width: 680px; margin: 0 auto 48px; line-height: 1.6; }
        .section-divider { width: 60px; height: 4px; background: linear-gradient(90deg, var(--accent), var(--blue-accent)); border-radius: 4px; margin: 0 auto 16px; }
        .text-gradient { background: linear-gradient(135deg, var(--accent-light), var(--blue-light)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
        .badge-custom {
            display: inline-block;
            padding: 4px 14px;
            font-size: 0.75rem;
            font-weight: 600;
            letter-spacing: 0.03em;
            border-radius: 20px;
            background: rgba(37,99,235,0.15);
            color: var(--blue-light);
            border: 1px solid rgba(37,99,235,0.25);
            text-transform: uppercase;
        }
        .badge-accent {
            background: rgba(245,158,11,0.15);
            color: var(--accent);
            border-color: rgba(245,158,11,0.25);
        }
        .btn-custom {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 32px;
            font-size: 1rem;
            font-weight: 600;
            border-radius: 50px;
            border: none;
            transition: var(--transition);
            cursor: pointer;
            letter-spacing: 0.01em;
        }
        .btn-primary-custom {
            background: linear-gradient(135deg, var(--blue-accent), #1d4ed8);
            color: #fff;
            box-shadow: 0 4px 20px rgba(37,99,235,0.3);
        }
        .btn-primary-custom:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 30px rgba(37,99,235,0.45);
            color: #fff;
            background: linear-gradient(135deg, var(--blue-light), var(--blue-accent));
        }
        .btn-primary-custom:active { transform: translateY(0); box-shadow: 0 2px 12px rgba(37,99,235,0.3); }
        .btn-accent-custom {
            background: linear-gradient(135deg, var(--accent), var(--accent-dark));
            color: #0f172a;
            box-shadow: 0 4px 20px rgba(245,158,11,0.25);
        }
        .btn-accent-custom:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 30px rgba(245,158,11,0.4);
            color: #0f172a;
            background: linear-gradient(135deg, var(--accent-light), var(--accent));
        }
        .btn-outline-custom {
            background: transparent;
            color: var(--text-light);
            border: 1.5px solid var(--border-light);
            padding: 12px 28px;
        }
        .btn-outline-custom:hover {
            border-color: var(--accent);
            color: var(--accent);
            background: rgba(245,158,11,0.05);
        }
        .btn-sm-custom { padding: 10px 22px; font-size: 0.9rem; }
        .card-custom {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            transition: var(--transition);
            overflow: hidden;
        }
        .card-custom:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
            border-color: var(--border-light);
        }
        .card-custom .card-img-top { border-radius: var(--radius-md) var(--radius-md) 0 0; object-fit: cover; height: 200px; }
        .card-custom .card-body { padding: 24px; }
        .card-custom .card-title { font-size: 1.15rem; font-weight: 600; margin-bottom: 8px; color: var(--text-light); }
        .card-custom .card-text { font-size: 0.95rem; color: var(--text-muted); line-height: 1.6; }
        /* ===== Header & Nav ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1050;
            background: rgba(15,23,42,0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid rgba(51,65,85,0.4);
            transition: var(--transition);
        }
        .site-header .container { display: flex; align-items: center; justify-content: space-between; height: 72px; }
        .site-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.6rem;
            font-weight: 800;
            color: var(--text-light);
            letter-spacing: -0.02em;
        }
        .site-logo:hover { color: var(--accent); }
        .site-logo .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            background: linear-gradient(135deg, var(--blue-accent), var(--accent));
            border-radius: 10px;
            font-size: 1.2rem;
            color: #fff;
        }
        .nav-main { display: flex; align-items: center; gap: 4px; }
        .nav-main .nav-link {
            display: flex;
            align-items: center;
            gap: 6px;
            padding: 8px 18px;
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-muted);
            border-radius: 8px;
            transition: var(--transition);
            position: relative;
        }
        .nav-main .nav-link:hover { color: var(--text-light); background: rgba(255,255,255,0.05); }
        .nav-main .nav-link.active { color: var(--accent); background: rgba(245,158,11,0.08); }
        .nav-main .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: var(--accent);
            border-radius: 4px;
        }
        .nav-cta { margin-left: 12px; }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            color: var(--text-light);
            font-size: 1.5rem;
            padding: 6px 10px;
            border-radius: 8px;
            cursor: pointer;
            transition: var(--transition);
        }
        .nav-toggle:hover { background: rgba(255,255,255,0.05); }
        .mobile-menu {
            display: none;
            position: fixed;
            top: 72px;
            left: 0;
            width: 100%;
            background: rgba(15,23,42,0.98);
            backdrop-filter: blur(20px);
            padding: 20px 0;
            border-bottom: 1px solid var(--border-color);
            z-index: 1040;
            transform: translateY(-10px);
            opacity: 0;
            transition: var(--transition);
            pointer-events: none;
        }
        .mobile-menu.open { transform: translateY(0); opacity: 1; pointer-events: auto; }
        .mobile-menu .nav-link {
            display: block;
            padding: 12px 24px;
            font-size: 1.1rem;
            font-weight: 500;
            color: var(--text-muted);
            border-radius: 0;
        }
        .mobile-menu .nav-link:hover { color: var(--text-light); background: rgba(255,255,255,0.03); }
        .mobile-menu .nav-link.active { color: var(--accent); }
        .mobile-menu .nav-cta-mob { margin: 12px 24px; display: block; }
        /* ===== Hero ===== */
        .hero-section {
            position: relative;
            min-height: 92vh;
            display: flex;
            align-items: center;
            padding: 120px 0 80px;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            overflow: hidden;
        }
        .hero-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15,23,42,0.88) 0%, rgba(15,23,42,0.6) 60%, rgba(15,23,42,0.4) 100%);
            z-index: 1;
        }
        .hero-section::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 100%;
            height: 120px;
            background: linear-gradient(transparent, var(--bg-section));
            z-index: 1;
        }
        .hero-content { position: relative; z-index: 2; max-width: 820px; }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 18px;
            background: rgba(37,99,235,0.12);
            border: 1px solid rgba(37,99,235,0.2);
            border-radius: 50px;
            font-size: 0.85rem;
            font-weight: 500;
            color: var(--blue-light);
            margin-bottom: 20px;
        }
        .hero-badge i { font-size: 0.75rem; }
        .hero-title {
            font-size: 3.8rem;
            font-weight: 800;
            line-height: 1.15;
            margin-bottom: 20px;
            letter-spacing: -0.03em;
            color: var(--text-light);
        }
        .hero-title .highlight { background: linear-gradient(135deg, var(--accent-light), var(--accent)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
        .hero-desc {
            font-size: 1.25rem;
            color: var(--text-muted);
            max-width: 640px;
            line-height: 1.7;
            margin-bottom: 36px;
        }
        .hero-actions { display: flex; flex-wrap: wrap; gap: 16px; align-items: center; }
        .hero-stats {
            display: flex;
            flex-wrap: wrap;
            gap: 32px;
            margin-top: 48px;
            padding-top: 40px;
            border-top: 1px solid rgba(51,65,85,0.4);
        }
        .hero-stat-item { text-align: left; }
        .hero-stat-item .num { font-size: 2rem; font-weight: 700; color: var(--text-light); line-height: 1.2; }
        .hero-stat-item .num .accent { color: var(--accent); }
        .hero-stat-item .label { font-size: 0.9rem; color: var(--text-muted); margin-top: 2px; }
        /* ===== Features ===== */
        .features-section { background: var(--bg-alt); }
        .feature-card {
            text-align: center;
            padding: 36px 24px 28px;
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            transition: var(--transition);
            height: 100%;
        }
        .feature-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-md);
            border-color: var(--border-light);
        }
        .feature-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 64px;
            height: 64px;
            border-radius: 16px;
            font-size: 1.6rem;
            margin-bottom: 18px;
            background: rgba(37,99,235,0.12);
            color: var(--blue-light);
            transition: var(--transition);
        }
        .feature-card:hover .feature-icon { background: rgba(37,99,235,0.2); transform: scale(1.05); }
        .feature-card h5 { font-size: 1.15rem; font-weight: 600; margin-bottom: 10px; color: var(--text-light); }
        .feature-card p { font-size: 0.92rem; color: var(--text-muted); line-height: 1.7; }
        /* ===== Advantage ===== */
        .advantage-section { background: var(--bg-section); }
        .advantage-grid { display: flex; flex-wrap: wrap; gap: 30px; align-items: center; }
        .advantage-text { flex: 1 1 50%; min-width: 300px; }
        .advantage-visual { flex: 1 1 40%; min-width: 280px; }
        .advantage-visual img { border-radius: var(--radius-md); box-shadow: var(--shadow-lg); width: 100%; }
        .advantage-list { list-style: none; padding: 0; margin: 24px 0 0; }
        .advantage-list li {
            display: flex;
            align-items: flex-start;
            gap: 14px;
            padding: 12px 0;
            border-bottom: 1px solid rgba(51,65,85,0.25);
            font-size: 1rem;
            color: var(--text-muted);
        }
        .advantage-list li:last-child { border-bottom: none; }
        .advantage-list li i { color: var(--accent); font-size: 1.1rem; margin-top: 3px; flex-shrink: 0; }
        /* ===== Latest News (CMS) ===== */
        .news-section { background: var(--bg-alt); }
        .news-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: var(--transition);
            height: 100%;
        }
        .news-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: var(--border-light); }
        .news-card .news-img { width: 100%; height: 180px; object-fit: cover; border-radius: var(--radius-md) var(--radius-md) 0 0; }
        .news-card .news-body { padding: 20px 22px 22px; }
        .news-card .news-meta { display: flex; flex-wrap: wrap; gap: 12px; font-size: 0.8rem; color: var(--text-muted); margin-bottom: 8px; }
        .news-card .news-meta span { display: flex; align-items: center; gap: 4px; }
        .news-card .news-title { font-size: 1.05rem; font-weight: 600; margin-bottom: 8px; }
        .news-card .news-title a { color: var(--text-light); }
        .news-card .news-title a:hover { color: var(--accent); }
        .news-card .news-excerpt { font-size: 0.9rem; color: var(--text-muted); line-height: 1.6; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
        .news-empty { text-align: center; padding: 60px 20px; color: var(--text-muted); font-size: 1.05rem; }
        .news-empty i { font-size: 2.4rem; margin-bottom: 16px; display: block; color: var(--border-color); }
        /* ===== Stats ===== */
        .stats-section {
            background: url('/assets/images/backpic/back-2.webp') center center / cover no-repeat fixed;
            position: relative;
        }
        .stats-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: rgba(15,23,42,0.85);
            z-index: 1;
        }
        .stats-section .container { position: relative; z-index: 2; }
        .stat-box {
            text-align: center;
            padding: 32px 16px;
            background: rgba(255,255,255,0.03);
            border: 1px solid rgba(51,65,85,0.3);
            border-radius: var(--radius-md);
            backdrop-filter: blur(4px);
            transition: var(--transition);
        }
        .stat-box:hover { background: rgba(255,255,255,0.06); border-color: rgba(37,99,235,0.2); }
        .stat-box .stat-num { font-size: 2.6rem; font-weight: 800; color: var(--text-light); line-height: 1.2; }
        .stat-box .stat-num .accent { color: var(--accent); }
        .stat-box .stat-label { font-size: 0.95rem; color: var(--text-muted); margin-top: 6px; }
        /* ===== Process ===== */
        .process-section { background: var(--bg-section); }
        .process-step {
            text-align: center;
            padding: 28px 20px;
            position: relative;
        }
        .process-step .step-num {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--blue-accent), #1d4ed8);
            color: #fff;
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 16px;
            box-shadow: 0 4px 16px rgba(37,99,235,0.3);
        }
        .process-step h5 { font-size: 1.1rem; font-weight: 600; color: var(--text-light); margin-bottom: 8px; }
        .process-step p { font-size: 0.9rem; color: var(--text-muted); line-height: 1.6; max-width: 260px; margin: 0 auto; }
        .process-arrow { display: flex; align-items: center; justify-content: center; font-size: 1.5rem; color: var(--text-muted); opacity: 0.4; }
        /* ===== FAQ ===== */
        .faq-section { background: var(--bg-alt); }
        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-sm);
            margin-bottom: 12px;
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover { border-color: var(--border-light); }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 22px;
            font-size: 1.05rem;
            font-weight: 500;
            color: var(--text-light);
            cursor: pointer;
            background: none;
            border: none;
            width: 100%;
            text-align: left;
            transition: var(--transition);
            gap: 12px;
        }
        .faq-question:hover { color: var(--accent); }
        .faq-question i { transition: var(--transition); font-size: 0.9rem; color: var(--text-muted); }
        .faq-question[aria-expanded="true"] i { transform: rotate(180deg); color: var(--accent); }
        .faq-answer {
            padding: 0 22px 18px;
            font-size: 0.95rem;
            color: var(--text-muted);
            line-height: 1.7;
        }
        .faq-answer:not(.show) { display: none; }
        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--primary), #0f1a30);
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -20%;
            width: 500px;
            height: 500px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(37,99,235,0.08), transparent);
        }
        .cta-section .container { position: relative; z-index: 2; }
        .cta-title { font-size: 2.2rem; font-weight: 700; color: var(--text-light); margin-bottom: 12px; }
        .cta-desc { font-size: 1.1rem; color: var(--text-muted); max-width: 560px; margin: 0 auto 28px; }
        .cta-actions { display: flex; flex-wrap: wrap; gap: 16px; justify-content: center; }
        /* ===== Footer ===== */
        .site-footer {
            background: var(--primary-dark);
            border-top: 1px solid rgba(51,65,85,0.3);
            padding: 48px 0 24px;
        }
        .footer-brand { font-size: 1.4rem; font-weight: 700; color: var(--text-light); margin-bottom: 8px; }
        .footer-desc { font-size: 0.92rem; color: var(--text-muted); max-width: 320px; line-height: 1.7; }
        .footer-links { list-style: none; padding: 0; margin: 0; }
        .footer-links li { margin-bottom: 8px; }
        .footer-links a { color: var(--text-muted); font-size: 0.92rem; transition: var(--transition); display: inline-flex; align-items: center; gap: 6px; }
        .footer-links a:hover { color: var(--accent); }
        .footer-links a i { font-size: 0.7rem; }
        .footer-bottom {
            margin-top: 36px;
            padding-top: 20px;
            border-top: 1px solid rgba(51,65,85,0.25);
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            font-size: 0.85rem;
            color: var(--text-muted);
        }
        .footer-bottom a { color: var(--text-muted); }
        .footer-bottom a:hover { color: var(--accent); }
        .footer-social { display: flex; gap: 14px; }
        .footer-social a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: rgba(255,255,255,0.04);
            color: var(--text-muted);
            font-size: 1rem;
            transition: var(--transition);
            border: 1px solid rgba(51,65,85,0.2);
        }
        .footer-social a:hover { background: rgba(37,99,235,0.15); color: var(--blue-light); border-color: rgba(37,99,235,0.2); }
        /* ===== Category entry ===== */
        .category-entry {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 32px 28px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 24px;
            transition: var(--transition);
        }
        .category-entry:hover { border-color: var(--border-light); box-shadow: var(--shadow-sm); }
        .category-entry .entry-img { flex: 0 0 160px; height: 120px; border-radius: var(--radius-sm); object-fit: cover; }
        .category-entry .entry-text { flex: 1; min-width: 200px; }
        .category-entry .entry-text h4 { font-size: 1.2rem; font-weight: 600; color: var(--text-light); margin-bottom: 6px; }
        .category-entry .entry-text p { font-size: 0.92rem; color: var(--text-muted); margin-bottom: 10px; }
        .category-entry .entry-text .btn { flex-shrink: 0; }
        /* ===== Responsive ===== */
        @media (max-width: 991px) {
            .nav-main { display: none; }
            .nav-toggle { display: block; }
            .mobile-menu { display: block; }
            .hero-title { font-size: 2.8rem; }
            .hero-section { min-height: 70vh; padding: 100px 0 60px; }
            .section-padding { padding: 60px 0; }
            .section-title { font-size: 1.8rem; }
            .advantage-grid { flex-direction: column; }
            .process-arrow { transform: rotate(90deg); padding: 8px 0; }
            .stat-box { padding: 24px 12px; }
            .stat-box .stat-num { font-size: 2rem; }
            .cta-title { font-size: 1.8rem; }
        }
        @media (max-width: 767px) {
            .hero-title { font-size: 2.2rem; }
            .hero-desc { font-size: 1.05rem; }
            .hero-stats { gap: 20px; padding-top: 28px; }
            .hero-stat-item .num { font-size: 1.6rem; }
            .section-title { font-size: 1.6rem; }
            .section-padding { padding: 48px 0; }
            .feature-card { padding: 28px 18px 22px; }
            .category-entry { flex-direction: column; text-align: center; }
            .category-entry .entry-img { flex: 0 0 auto; width: 100%; height: 180px; }
            .footer-bottom { flex-direction: column; text-align: center; }
            .cta-section .container { padding: 0 16px; }
        }
        @media (max-width: 520px) {
            .site-header .container { height: 64px; }
            .site-logo { font-size: 1.3rem; }
            .site-logo .logo-icon { width: 34px; height: 34px; font-size: 1rem; }
            .hero-title { font-size: 1.8rem; }
            .hero-desc { font-size: 0.95rem; }
            .hero-actions { flex-direction: column; width: 100%; }
            .hero-actions .btn-custom { width: 100%; justify-content: center; }
            .hero-stats { flex-direction: column; gap: 16px; }
            .section-title { font-size: 1.4rem; }
            .news-card .news-title { font-size: 0.95rem; }
            .faq-question { font-size: 0.95rem; padding: 14px 16px; }
            .faq-answer { padding: 0 16px 14px; font-size: 0.9rem; }
            .cta-title { font-size: 1.5rem; }
            .cta-actions { flex-direction: column; align-items: center; }
            .cta-actions .btn-custom { width: 100%; justify-content: center; }
        }
        @media (min-width: 992px) {
            .mobile-menu { display: none !important; }
        }
        /* ===== Accessibility & misc ===== */
        :focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
        ::selection { background: rgba(37,99,235,0.3); color: var(--text-light); }
        .scroll-top {
            position: fixed;
            bottom: 30px;
            right: 30px;
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            color: var(--text-muted);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            cursor: pointer;
            transition: var(--transition);
            z-index: 1030;
            opacity: 0;
            visibility: hidden;
        }
        .scroll-top.visible { opacity: 1; visibility: visible; }
        .scroll-top:hover { background: var(--blue-accent); color: #fff; border-color: var(--blue-accent); }

/* roulang page: article */
/* ===== 设计变量 ===== */
        :root {
            --primary: #0052ff;
            --primary-dark: #003bb5;
            --primary-light: #e8f0ff;
            --accent: #ff6b35;
            --accent-hover: #e5551f;
            --bg-dark: #0b1120;
            --bg-section: #f5f8ff;
            --bg-card: #ffffff;
            --text-dark: #1a2332;
            --text-muted: #5e6f8d;
            --text-light: #f0f4ff;
            --border-color: #e2e8f0;
            --border-radius: 16px;
            --border-radius-sm: 10px;
            --shadow-sm: 0 2px 12px rgba(0, 82, 255, 0.08);
            --shadow-md: 0 8px 32px rgba(0, 82, 255, 0.12);
            --shadow-lg: 0 16px 56px rgba(0, 82, 255, 0.18);
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Segoe UI', system-ui, -apple-system, 'Helvetica Neue', sans-serif;
            --container-max: 1200px;
        }

        /* ===== Reset & Base ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-sans);
            background: #ffffff;
            color: var(--text-dark);
            line-height: 1.7;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--primary-dark);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        textarea {
            font-family: inherit;
            font-size: inherit;
        }

        /* ===== Container ===== */
        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }
        @media (max-width: 768px) {
            .container {
                padding: 0 16px;
            }
        }

        /* ===== Header / Nav ===== */
        .site-header {
            background: var(--bg-dark);
            padding: 0 0;
            position: sticky;
            top: 0;
            z-index: 1050;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
        }
        .site-header>.container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
        }
        .site-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 24px;
            font-weight: 800;
            color: #ffffff;
            letter-spacing: -0.5px;
            text-decoration: none;
            transition: var(--transition);
        }
        .site-logo:hover {
            color: var(--accent);
            transform: scale(1.02);
        }
        .logo-icon {
            color: var(--accent);
            font-size: 26px;
        }
        .nav-main {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .nav-main .nav-link {
            color: rgba(255, 255, 255, 0.75);
            padding: 8px 18px;
            border-radius: 8px;
            font-size: 15px;
            font-weight: 500;
            transition: var(--transition);
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .nav-main .nav-link i {
            font-size: 14px;
        }
        .nav-main .nav-link:hover,
        .nav-main .nav-link.active {
            color: #ffffff;
            background: rgba(255, 255, 255, 0.10);
        }
        .nav-main .nav-link.active {
            background: rgba(0, 82, 255, 0.25);
            color: var(--primary-light);
        }
        .nav-cta {
            margin-left: 8px;
            padding: 8px 22px !important;
            border-radius: 30px !important;
            font-weight: 600 !important;
            letter-spacing: 0.3px;
        }
        .btn-custom {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 32px;
            border-radius: 30px;
            font-weight: 600;
            font-size: 16px;
            border: none;
            transition: var(--transition);
            cursor: pointer;
            text-decoration: none;
        }
        .btn-primary-custom {
            background: var(--accent);
            color: #ffffff;
            box-shadow: 0 4px 20px rgba(255, 107, 53, 0.35);
        }
        .btn-primary-custom:hover {
            background: var(--accent-hover);
            color: #ffffff;
            transform: translateY(-2px);
            box-shadow: 0 8px 30px rgba(255, 107, 53, 0.45);
        }
        .btn-sm-custom {
            padding: 8px 20px;
            font-size: 14px;
        }
        .nav-toggle {
            display: none;
            background: transparent;
            border: none;
            color: #ffffff;
            font-size: 26px;
            cursor: pointer;
            padding: 4px 8px;
            border-radius: 6px;
            transition: var(--transition);
        }
        .nav-toggle:hover {
            background: rgba(255, 255, 255, 0.08);
        }

        /* ===== 移动端导航 ===== */
        @media (max-width: 768px) {
            .nav-main {
                display: none;
                flex-direction: column;
                background: var(--bg-dark);
                position: absolute;
                top: 72px;
                left: 0;
                right: 0;
                padding: 16px 24px 24px;
                gap: 6px;
                border-bottom: 1px solid rgba(255, 255, 255, 0.06);
                box-shadow: 0 12px 40px rgba(0, 0, 0, 0.4);
            }
            .nav-main.open {
                display: flex;
            }
            .nav-main .nav-link {
                padding: 12px 16px;
                font-size: 16px;
                width: 100%;
            }
            .nav-cta {
                margin-left: 0;
                margin-top: 6px;
                justify-content: center;
                padding: 12px 22px !important;
            }
            .nav-toggle {
                display: block;
            }
            .site-header>.container {
                height: 64px;
            }
            .site-logo {
                font-size: 20px;
            }
            .logo-icon {
                font-size: 22px;
            }
        }
        @media (max-width: 520px) {
            .nav-main .nav-link {
                font-size: 15px;
                padding: 10px 14px;
            }
            .site-logo {
                font-size: 18px;
            }
            .logo-icon {
                font-size: 20px;
            }
            .nav-cta {
                padding: 10px 18px !important;
                font-size: 13px;
            }
        }

        /* ===== 文章详情页 ===== */
        .article-hero {
            position: relative;
            background: var(--bg-dark);
            padding: 80px 0 60px;
            overflow: hidden;
        }
        .article-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.webp') center center / cover no-repeat;
            opacity: 0.20;
            pointer-events: none;
        }
        .article-hero .container {
            position: relative;
            z-index: 2;
        }
        .article-hero .breadcrumb-custom {
            display: flex;
            flex-wrap: wrap;
            gap: 8px 16px;
            color: rgba(255, 255, 255, 0.55);
            font-size: 14px;
            margin-bottom: 24px;
            align-items: center;
        }
        .article-hero .breadcrumb-custom a {
            color: rgba(255, 255, 255, 0.65);
            text-decoration: none;
            transition: var(--transition);
        }
        .article-hero .breadcrumb-custom a:hover {
            color: #ffffff;
        }
        .article-hero .breadcrumb-custom .sep {
            color: rgba(255, 255, 255, 0.3);
        }
        .article-hero .breadcrumb-custom .current {
            color: var(--accent);
            font-weight: 500;
        }
        .article-hero h1 {
            font-size: 40px;
            font-weight: 800;
            color: #ffffff;
            line-height: 1.25;
            margin: 0 0 16px;
            max-width: 900px;
            letter-spacing: -0.5px;
        }
        .article-hero .meta-line {
            display: flex;
            flex-wrap: wrap;
            gap: 16px 28px;
            color: rgba(255, 255, 255, 0.6);
            font-size: 15px;
            align-items: center;
            margin-bottom: 0;
        }
        .article-hero .meta-line i {
            margin-right: 6px;
            color: var(--accent);
        }
        .article-hero .meta-line .cat-badge {
            background: rgba(255, 107, 53, 0.2);
            color: var(--accent);
            padding: 2px 16px;
            border-radius: 20px;
            font-size: 13px;
            font-weight: 600;
        }
        @media (max-width: 768px) {
            .article-hero {
                padding: 60px 0 40px;
            }
            .article-hero h1 {
                font-size: 28px;
            }
            .article-hero .meta-line {
                font-size: 14px;
                gap: 12px 20px;
            }
        }
        @media (max-width: 520px) {
            .article-hero h1 {
                font-size: 22px;
            }
            .article-hero .meta-line {
                font-size: 13px;
                gap: 8px 16px;
            }
        }

        /* ===== 文章正文 ===== */
        .article-content-section {
            padding: 56px 0 80px;
            background: #ffffff;
        }
        .article-content-wrapper {
            max-width: 860px;
            margin: 0 auto;
        }
        .article-body {
            font-size: 17px;
            line-height: 1.9;
            color: var(--text-dark);
        }
        .article-body p {
            margin-bottom: 1.4em;
        }
        .article-body h2,
        .article-body h3,
        .article-body h4 {
            font-weight: 700;
            color: var(--bg-dark);
            margin-top: 1.6em;
            margin-bottom: 0.6em;
        }
        .article-body h2 {
            font-size: 26px;
        }
        .article-body h3 {
            font-size: 22px;
        }
        .article-body ul,
        .article-body ol {
            padding-left: 24px;
            margin-bottom: 1.4em;
        }
        .article-body li {
            margin-bottom: 0.4em;
        }
        .article-body img {
            border-radius: var(--border-radius-sm);
            margin: 24px auto;
            box-shadow: var(--shadow-sm);
        }
        .article-body a {
            color: var(--primary);
            text-decoration: underline;
            text-underline-offset: 3px;
        }
        .article-body a:hover {
            color: var(--primary-dark);
        }
        .article-body blockquote {
            border-left: 4px solid var(--accent);
            padding: 16px 24px;
            background: var(--primary-light);
            border-radius: 0 var(--border-radius-sm) var(--border-radius-sm) 0;
            margin: 24px 0;
            font-style: italic;
            color: var(--text-muted);
        }
        .article-body .table-wrap {
            overflow-x: auto;
            margin: 24px 0;
        }
        .article-body table {
            width: 100%;
            border-collapse: collapse;
            font-size: 15px;
        }
        .article-body table th,
        .article-body table td {
            padding: 12px 16px;
            border: 1px solid var(--border-color);
            text-align: left;
        }
        .article-body table th {
            background: var(--bg-section);
            font-weight: 600;
        }

        /* ===== 文章未找到 ===== */
        .not-found-box {
            text-align: center;
            padding: 60px 24px;
            background: var(--bg-section);
            border-radius: var(--border-radius);
            box-shadow: var(--shadow-sm);
        }
        .not-found-box i {
            font-size: 56px;
            color: var(--accent);
            margin-bottom: 20px;
        }
        .not-found-box h3 {
            font-size: 24px;
            font-weight: 700;
            margin-bottom: 12px;
        }
        .not-found-box p {
            color: var(--text-muted);
            font-size: 16px;
            margin-bottom: 24px;
        }
        .not-found-box .btn-home {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 32px;
            border-radius: 30px;
            background: var(--primary);
            color: #ffffff;
            font-weight: 600;
            text-decoration: none;
            transition: var(--transition);
        }
        .not-found-box .btn-home:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
        }

        /* ===== 文章底部导航 ===== */
        .article-footer-nav {
            border-top: 1px solid var(--border-color);
            padding-top: 28px;
            margin-top: 40px;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 16px;
        }
        .article-footer-nav a {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            color: var(--text-muted);
            font-weight: 500;
            transition: var(--transition);
            text-decoration: none;
        }
        .article-footer-nav a:hover {
            color: var(--primary);
        }
        .article-footer-nav .prev i {
            margin-right: 4px;
        }
        .article-footer-nav .next i {
            margin-left: 4px;
        }

        /* ===== 相关推荐 ===== */
        .related-section {
            padding: 60px 0;
            background: var(--bg-section);
        }
        .related-section .section-title {
            font-size: 28px;
            font-weight: 700;
            margin-bottom: 32px;
            color: var(--text-dark);
            text-align: center;
        }
        .related-card {
            background: var(--bg-card);
            border-radius: var(--border-radius);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            height: 100%;
            display: flex;
            flex-direction: column;
            text-decoration: none;
            color: inherit;
            border: 1px solid var(--border-color);
        }
        .related-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-md);
            border-color: transparent;
        }
        .related-card .card-img {
            width: 100%;
            aspect-ratio: 16/9;
            object-fit: cover;
            background: var(--bg-section);
        }
        .related-card .card-body {
            padding: 20px 22px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .related-card .card-body h5 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--text-dark);
            line-height: 1.4;
        }
        .related-card .card-body p {
            font-size: 14px;
            color: var(--text-muted);
            flex: 1;
            margin-bottom: 12px;
        }
        .related-card .card-body .card-meta {
            font-size: 13px;
            color: var(--text-muted);
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .related-card .card-body .card-meta i {
            color: var(--accent);
            margin-right: 4px;
        }

        /* ===== 结构化数据隐藏 ===== */
        .json-ld-hidden {
            display: none;
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(255, 255, 255, 0.7);
            padding: 56px 0 32px;
            font-size: 15px;
        }
        .site-footer .footer-brand {
            font-size: 24px;
            font-weight: 800;
            color: #ffffff;
            margin-bottom: 12px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .site-footer .footer-desc {
            font-size: 14px;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.55);
            max-width: 360px;
        }
        .site-footer h6 {
            color: rgba(255, 255, 255, 0.9);
            font-weight: 600;
            margin-bottom: 14px;
            font-size: 16px;
        }
        .site-footer .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .site-footer .footer-links li {
            margin-bottom: 8px;
        }
        .site-footer .footer-links a {
            color: rgba(255, 255, 255, 0.55);
            text-decoration: none;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
        }
        .site-footer .footer-links a i {
            font-size: 10px;
            color: var(--accent);
        }
        .site-footer .footer-links a:hover {
            color: #ffffff;
            transform: translateX(4px);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 24px;
            margin-top: 32px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 16px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.4);
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, 0.45);
            text-decoration: none;
        }
        .footer-bottom a:hover {
            color: #ffffff;
        }
        .footer-social {
            display: flex;
            gap: 16px;
        }
        .footer-social a {
            color: rgba(255, 255, 255, 0.4);
            font-size: 20px;
            transition: var(--transition);
        }
        .footer-social a:hover {
            color: var(--accent);
            transform: scale(1.15);
        }
        @media (max-width: 768px) {
            .site-footer {
                padding: 40px 0 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .site-footer .footer-desc {
                max-width: 100%;
            }
        }

        /* ===== 辅助 ===== */
        .text-accent {
            color: var(--accent);
        }
        .text-primary-custom {
            color: var(--primary);
        }
        .bg-section-light {
            background: var(--bg-section);
        }
        .rounded-custom {
            border-radius: var(--border-radius);
        }
        .shadow-custom-sm {
            box-shadow: var(--shadow-sm);
        }
        .shadow-custom-md {
            box-shadow: var(--shadow-md);
        }
        .mb-section {
            margin-bottom: 60px;
        }

        /* ===== 响应式微调 ===== */
        @media (max-width: 576px) {
            .article-body {
                font-size: 16px;
            }
            .article-body h2 {
                font-size: 22px;
            }
            .article-body h3 {
                font-size: 19px;
            }
            .related-section .section-title {
                font-size: 22px;
            }
            .article-footer-nav {
                flex-direction: column;
                align-items: center;
                text-align: center;
            }
        }

/* roulang page: category1 */
/* ===== Design Variables ===== */
        :root {
            --primary: #0f1a2e;
            --primary-light: #162240;
            --accent: #f59e0b;
            --accent-hover: #d4880a;
            --accent-glow: rgba(245, 158, 11, 0.25);
            --secondary: #1a56db;
            --secondary-hover: #1648c0;
            --bg-dark: #0a1220;
            --bg-card: #121e34;
            --bg-card-hover: #1a2a44;
            --text-light: #f1f5f9;
            --text-muted: #94a3b8;
            --text-dim: #64748b;
            --border-subtle: rgba(255, 255, 255, 0.06);
            --border-card: rgba(255, 255, 255, 0.08);
            --shadow-sm: 0 2px 12px rgba(0, 0, 0, 0.3);
            --shadow-md: 0 8px 30px rgba(0, 0, 0, 0.4);
            --shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.5);
            --radius-sm: 8px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --radius-xl: 32px;
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-main: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
            --max-width: 1200px;
        }

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

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

        body {
            font-family: var(--font-main);
            background: var(--bg-dark);
            color: var(--text-light);
            line-height: 1.7;
            overflow-x: hidden;
        }

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

        a {
            color: var(--text-light);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--accent);
        }

        button,
        input,
        textarea {
            font-family: inherit;
            font-size: inherit;
        }

        /* ===== Container ===== */
        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ===== Typography ===== */
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-weight: 700;
            line-height: 1.25;
            color: var(--text-light);
        }

        .section-title {
            font-size: 2.4rem;
            font-weight: 800;
            text-align: center;
            margin-bottom: 12px;
            letter-spacing: -0.02em;
            background: linear-gradient(135deg, #ffffff 0%, var(--accent) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .section-subtitle {
            font-size: 1.1rem;
            color: var(--text-muted);
            text-align: center;
            max-width: 680px;
            margin: 0 auto 48px auto;
            line-height: 1.8;
        }

        .text-accent {
            color: var(--accent);
        }

        /* ===== Header & Navigation ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1050;
            background: rgba(10, 18, 32, 0.92);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.04);
            transition: var(--transition);
        }

        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
        }

        .site-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--text-light);
            letter-spacing: -0.03em;
            transition: var(--transition);
        }
        .site-logo:hover {
            color: var(--accent);
        }
        .site-logo .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            border-radius: var(--radius-sm);
            background: linear-gradient(135deg, var(--accent), #d4880a);
            color: #0a1220;
            font-size: 1.2rem;
        }

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

        .nav-link {
            padding: 8px 18px;
            border-radius: var(--radius-sm);
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-muted);
            transition: var(--transition);
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .nav-link i {
            font-size: 0.85rem;
        }
        .nav-link:hover {
            color: var(--text-light);
            background: rgba(255, 255, 255, 0.05);
        }
        .nav-link.active {
            color: var(--accent);
            background: rgba(245, 158, 11, 0.1);
        }
        .nav-link.active i {
            color: var(--accent);
        }

        .nav-cta {
            margin-left: 12px;
        }

        .nav-toggle {
            display: none;
            background: none;
            border: none;
            color: var(--text-light);
            font-size: 1.5rem;
            cursor: pointer;
            padding: 8px;
            border-radius: var(--radius-sm);
            transition: var(--transition);
        }
        .nav-toggle:hover {
            background: rgba(255, 255, 255, 0.05);
        }

        /* ===== Buttons ===== */
        .btn-custom {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 32px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 1rem;
            border: none;
            cursor: pointer;
            transition: var(--transition);
            text-align: center;
            justify-content: center;
        }

        .btn-primary-custom {
            background: linear-gradient(135deg, var(--accent), #d4880a);
            color: #0a1220;
            box-shadow: 0 4px 20px var(--accent-glow);
        }
        .btn-primary-custom:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 30px var(--accent-glow);
            color: #0a1220;
            background: linear-gradient(135deg, var(--accent-hover), #c07d08);
        }
        .btn-primary-custom:active {
            transform: translateY(0);
        }

        .btn-outline-custom {
            background: transparent;
            color: var(--text-light);
            border: 2px solid rgba(255, 255, 255, 0.15);
        }
        .btn-outline-custom:hover {
            border-color: var(--accent);
            color: var(--accent);
            background: rgba(245, 158, 11, 0.08);
            transform: translateY(-2px);
        }

        .btn-sm-custom {
            padding: 8px 20px;
            font-size: 0.85rem;
            border-radius: 6px;
        }
        .btn-lg-custom {
            padding: 16px 40px;
            font-size: 1.1rem;
        }

        /* ===== Hero Section ===== */
        .hero-section {
            position: relative;
            min-height: 620px;
            display: flex;
            align-items: center;
            padding: 140px 0 80px;
            background: linear-gradient(135deg, #0a1220 0%, #121e34 50%, #0f1a2e 100%);
            overflow: hidden;
        }

        .hero-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') no-repeat center center / cover;
            opacity: 0.15;
            z-index: 0;
            animation: heroZoom 30s ease-in-out infinite alternate;
        }

        @keyframes heroZoom {
            0% {
                transform: scale(1);
            }
            100% {
                transform: scale(1.08);
            }
        }

        .hero-overlay {
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 30% 50%, rgba(10, 18, 32, 0.6) 0%, rgba(10, 18, 32, 0.95) 80%);
            z-index: 1;
        }

        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 820px;
            margin: 0 auto;
            text-align: center;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(245, 158, 11, 0.12);
            border: 1px solid rgba(245, 158, 11, 0.2);
            color: var(--accent);
            padding: 6px 18px;
            border-radius: 50px;
            font-size: 0.85rem;
            font-weight: 500;
            margin-bottom: 24px;
        }
        .hero-badge i {
            font-size: 0.75rem;
        }

        .hero-title {
            font-size: 3.6rem;
            font-weight: 900;
            letter-spacing: -0.03em;
            line-height: 1.15;
            margin-bottom: 20px;
            background: linear-gradient(135deg, #ffffff 0%, #e2e8f0 60%, var(--accent) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .hero-desc {
            font-size: 1.2rem;
            color: var(--text-muted);
            line-height: 1.8;
            max-width: 680px;
            margin: 0 auto 36px;
        }

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

        .hero-stats {
            display: flex;
            justify-content: center;
            gap: 40px;
            margin-top: 48px;
            padding-top: 36px;
            border-top: 1px solid var(--border-subtle);
        }

        .hero-stat-item {
            text-align: center;
        }
        .hero-stat-number {
            font-size: 2rem;
            font-weight: 800;
            color: var(--accent);
            line-height: 1.2;
        }
        .hero-stat-label {
            font-size: 0.85rem;
            color: var(--text-dim);
            margin-top: 4px;
        }

        /* ===== Section Spacing ===== */
        .section-block {
            padding: 80px 0;
        }
        .section-block-alt {
            background: var(--primary);
        }

        /* ===== Feature Cards ===== */
        .feature-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .feature-card {
            background: var(--bg-card);
            border: 1px solid var(--border-card);
            border-radius: var(--radius-md);
            padding: 32px 24px;
            text-align: center;
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }
        .feature-card::after {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, transparent, var(--accent), transparent);
            opacity: 0;
            transition: var(--transition);
        }
        .feature-card:hover {
            background: var(--bg-card-hover);
            border-color: rgba(245, 158, 11, 0.15);
            transform: translateY(-6px);
            box-shadow: var(--shadow-md);
        }
        .feature-card:hover::after {
            opacity: 1;
        }

        .feature-icon {
            width: 60px;
            height: 60px;
            border-radius: var(--radius-sm);
            background: rgba(245, 158, 11, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.6rem;
            color: var(--accent);
            margin: 0 auto 18px;
            transition: var(--transition);
        }
        .feature-card:hover .feature-icon {
            background: rgba(245, 158, 11, 0.2);
            transform: scale(1.05);
        }

        .feature-card h3 {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 10px;
        }
        .feature-card p {
            font-size: 0.92rem;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 0;
        }

        /* ===== Sport Category Cards ===== */
        .sport-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .sport-card {
            position: relative;
            border-radius: var(--radius-md);
            overflow: hidden;
            background: var(--bg-card);
            border: 1px solid var(--border-card);
            transition: var(--transition);
            cursor: pointer;
        }
        .sport-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-md);
            border-color: rgba(245, 158, 11, 0.15);
        }

        .sport-card-img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            transition: var(--transition);
        }
        .sport-card:hover .sport-card-img {
            transform: scale(1.05);
        }

        .sport-card-body {
            padding: 20px 20px 24px;
        }
        .sport-card-body h3 {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 8px;
        }
        .sport-card-body p {
            font-size: 0.88rem;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 16px;
        }
        .sport-card-tag {
            display: inline-block;
            padding: 4px 12px;
            border-radius: 50px;
            font-size: 0.75rem;
            font-weight: 500;
            background: rgba(245, 158, 11, 0.1);
            color: var(--accent);
            border: 1px solid rgba(245, 158, 11, 0.15);
            transition: var(--transition);
        }
        .sport-card:hover .sport-card-tag {
            background: rgba(245, 158, 11, 0.2);
        }

        /* ===== Scenarios ===== */
        .scenario-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .scenario-card {
            background: var(--bg-card);
            border: 1px solid var(--border-card);
            border-radius: var(--radius-md);
            padding: 32px 24px;
            text-align: center;
            transition: var(--transition);
        }
        .scenario-card:hover {
            background: var(--bg-card-hover);
            border-color: rgba(245, 158, 11, 0.12);
            transform: translateY(-4px);
            box-shadow: var(--shadow-sm);
        }

        .scenario-icon {
            width: 52px;
            height: 52px;
            border-radius: 50%;
            background: rgba(245, 158, 11, 0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            color: var(--accent);
            margin: 0 auto 16px;
            transition: var(--transition);
        }
        .scenario-card:hover .scenario-icon {
            background: rgba(245, 158, 11, 0.18);
            transform: scale(1.08);
        }
        .scenario-card h3 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 8px;
        }
        .scenario-card p {
            font-size: 0.88rem;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 0;
        }

        /* ===== Steps / Process ===== */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            position: relative;
        }

        .steps-grid::before {
            content: '';
            position: absolute;
            top: 40px;
            left: 12%;
            right: 12%;
            height: 2px;
            background: linear-gradient(90deg, var(--accent), rgba(245, 158, 11, 0.2), var(--accent));
            z-index: 0;
        }

        .step-item {
            text-align: center;
            position: relative;
            z-index: 1;
        }

        .step-number {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--accent), #d4880a);
            color: #0a1220;
            font-size: 1.4rem;
            font-weight: 800;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 16px;
            box-shadow: 0 0 30px var(--accent-glow);
        }

        .step-item h3 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 6px;
        }
        .step-item p {
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 1.6;
            margin-bottom: 0;
        }

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

        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border-card);
            border-radius: var(--radius-md);
            margin-bottom: 12px;
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: rgba(245, 158, 11, 0.1);
        }

        .faq-question {
            width: 100%;
            background: none;
            border: none;
            padding: 20px 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-light);
            cursor: pointer;
            text-align: left;
            transition: var(--transition);
        }
        .faq-question:hover {
            color: var(--accent);
        }
        .faq-question i {
            transition: var(--transition);
            color: var(--text-dim);
            font-size: 0.9rem;
            flex-shrink: 0;
        }
        .faq-item.active .faq-question i {
            transform: rotate(180deg);
            color: var(--accent);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
        }
        .faq-item.active .faq-answer {
            max-height: 300px;
        }
        .faq-answer-inner {
            padding: 0 24px 20px;
            color: var(--text-muted);
            font-size: 0.95rem;
            line-height: 1.8;
        }

        /* ===== CTA Section ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--primary-light) 0%, #0a1220 100%);
            border-top: 1px solid var(--border-subtle);
            border-bottom: 1px solid var(--border-subtle);
            text-align: center;
            padding: 80px 0;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.webp') no-repeat center center / cover;
            opacity: 0.06;
            z-index: 0;
        }
        .cta-section .container {
            position: relative;
            z-index: 1;
        }

        .cta-title {
            font-size: 2.6rem;
            font-weight: 900;
            margin-bottom: 16px;
            letter-spacing: -0.02em;
        }
        .cta-desc {
            font-size: 1.1rem;
            color: var(--text-muted);
            max-width: 580px;
            margin: 0 auto 32px;
            line-height: 1.8;
        }
        .cta-actions {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--primary);
            border-top: 1px solid var(--border-subtle);
            padding: 56px 0 24px;
        }

        .footer-brand {
            font-size: 1.4rem;
            font-weight: 800;
            color: var(--text-light);
            margin-bottom: 12px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .footer-desc {
            font-size: 0.88rem;
            color: var(--text-dim);
            line-height: 1.8;
            max-width: 360px;
        }

        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-links li {
            margin-bottom: 8px;
        }
        .footer-links a {
            color: var(--text-dim);
            font-size: 0.88rem;
            display: flex;
            align-items: center;
            gap: 8px;
            transition: var(--transition);
        }
        .footer-links a i {
            font-size: 0.6rem;
            color: var(--accent);
            transition: var(--transition);
        }
        .footer-links a:hover {
            color: var(--accent);
        }
        .footer-links a:hover i {
            transform: translateX(4px);
        }

        .footer-bottom {
            margin-top: 36px;
            padding-top: 20px;
            border-top: 1px solid var(--border-subtle);
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 0.82rem;
            color: var(--text-dim);
        }
        .footer-bottom a {
            color: var(--text-dim);
        }
        .footer-bottom a:hover {
            color: var(--accent);
        }

        .footer-social {
            display: flex;
            gap: 12px;
        }
        .footer-social a {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.04);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-dim);
            font-size: 1rem;
            transition: var(--transition);
        }
        .footer-social a:hover {
            background: rgba(245, 158, 11, 0.15);
            color: var(--accent);
            transform: translateY(-2px);
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .feature-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .sport-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .scenario-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .steps-grid::before {
                display: none;
            }
            .hero-title {
                font-size: 2.8rem;
            }
            .hero-stats {
                gap: 24px;
                flex-wrap: wrap;
            }
            .section-title {
                font-size: 2rem;
            }
        }

        @media (max-width: 768px) {
            .nav-main {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 72px;
                left: 0;
                right: 0;
                background: rgba(10, 18, 32, 0.98);
                backdrop-filter: blur(20px);
                padding: 16px 24px 24px;
                border-bottom: 1px solid var(--border-subtle);
                gap: 4px;
            }
            .nav-main.open {
                display: flex;
            }
            .nav-link {
                padding: 12px 16px;
                width: 100%;
                border-radius: var(--radius-sm);
            }
            .nav-cta {
                margin-left: 0;
                margin-top: 8px;
                width: 100%;
                justify-content: center;
            }
            .nav-toggle {
                display: block;
            }

            .hero-section {
                min-height: auto;
                padding: 120px 0 60px;
            }
            .hero-title {
                font-size: 2.2rem;
            }
            .hero-desc {
                font-size: 1rem;
            }
            .hero-stats {
                flex-direction: column;
                gap: 16px;
                margin-top: 32px;
                padding-top: 24px;
            }

            .section-block {
                padding: 56px 0;
            }
            .section-title {
                font-size: 1.7rem;
            }
            .section-subtitle {
                font-size: 0.95rem;
                margin-bottom: 32px;
            }

            .feature-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .sport-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .scenario-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .steps-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }

            .cta-title {
                font-size: 1.8rem;
            }
            .cta-desc {
                font-size: 0.95rem;
            }

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

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

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .hero-title {
                font-size: 1.8rem;
            }
            .hero-actions {
                flex-direction: column;
                width: 100%;
            }
            .hero-actions .btn-custom {
                width: 100%;
            }
            .section-title {
                font-size: 1.4rem;
            }
            .cta-title {
                font-size: 1.4rem;
            }
            .cta-actions {
                flex-direction: column;
                width: 100%;
            }
            .cta-actions .btn-custom {
                width: 100%;
            }
            .feature-card {
                padding: 24px 16px;
            }
            .sport-card-body {
                padding: 16px;
            }
            .scenario-card {
                padding: 24px 16px;
            }
            .faq-question {
                padding: 16px 16px;
                font-size: 0.92rem;
            }
            .faq-answer-inner {
                padding: 0 16px 16px;
                font-size: 0.88rem;
            }
            .hero-stat-number {
                font-size: 1.6rem;
            }
        }

        /* ===== Accessibility ===== */
        a:focus-visible,
        button:focus-visible,
        .nav-toggle:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
            border-radius: 4px;
        }

        /* ===== Utility ===== */
        .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;
        }
        .gap-1 {
            gap: 8px;
        }
        .gap-2 {
            gap: 16px;
        }
        .gap-3 {
            gap: 24px;
        }
        .text-center {
            text-align: center;
        }