/* roulang page: index */
/* ===== 设计变量 ===== */
        :root {
            --primary: #fbbf24;
            --primary-dark: #f59e0b;
            --primary-glow: rgba(251, 191, 36, 0.35);
            --accent: #ec4899;
            --accent-glow: rgba(236, 72, 153, 0.3);
            --bg-dark: #0b0d11;
            --bg-card: #161a22;
            --bg-card-hover: #1e2330;
            --bg-input: #1a1f2b;
            --bg-section-alt: #0f1219;
            --text-primary: #f1f5f9;
            --text-secondary: #94a3b8;
            --text-muted: #64748b;
            --border-color: #2a3040;
            --border-glow: rgba(251, 191, 36, 0.15);
            --radius: 12px;
            --radius-sm: 8px;
            --radius-lg: 20px;
            --shadow-card: 0 8px 32px rgba(0,0,0,0.5), 0 0 0 1px rgba(251,191,36,0.05);
            --shadow-glow: 0 0 40px rgba(251,191,36,0.08);
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
            --header-height: 72px;
        }

        /* ===== 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);
            background: var(--bg-dark);
            color: var(--text-primary);
            line-height: 1.6;
            overflow-x: hidden;
        }
        a { color: var(--primary); text-decoration: none; transition: color var(--transition); }
        a:hover { color: var(--primary-dark); }
        img { max-width: 100%; height: auto; display: block; }
        button, input, textarea, select { font-family: inherit; }
        ::selection { background: var(--primary); color: #0b0d11; }
        :focus-visible { outline: 2px solid var(--primary); outline-offset: 2px; }

        /* ===== Container ===== */
        .container { max-width: 1200px; padding-left: 20px; padding-right: 20px; margin: 0 auto; width: 100%; }
        .container-narrow { max-width: 900px; }

        /* ===== Typography ===== */
        h1, h2, h3, h4, h5, h6 { font-weight: 700; line-height: 1.25; color: var(--text-primary); }
        .heading-glow { 
            text-shadow: 0 0 40px var(--primary-glow);
        }
        .text-gradient {
            background: linear-gradient(135deg, var(--primary), var(--accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .section-title { font-size: 2.2rem; margin-bottom: 0.5rem; }
        .section-subtitle { font-size: 1.05rem; color: var(--text-secondary); max-width: 640px; }
        @media (max-width: 768px) {
            .section-title { font-size: 1.6rem; }
        }

        /* ===== Neon Glow Utility ===== */
        .neon-border {
            position: relative;
        }
        .neon-border::after {
            content: '';
            position: absolute;
            inset: 0;
            border-radius: inherit;
            padding: 1px;
            background: linear-gradient(135deg, var(--primary), var(--accent), var(--primary));
            -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
            -webkit-mask-composite: xor;
            mask-composite: exclude;
            pointer-events: none;
            opacity: 0.6;
            transition: opacity var(--transition);
        }
        .neon-border:hover::after { opacity: 1; }

        /* ===== Header / Nav ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1050;
            height: var(--header-height);
            background: rgba(11, 13, 17, 0.92);
            backdrop-filter: blur(24px) saturate(1.2);
            border-bottom: 1px solid var(--border-color);
            transition: background var(--transition), border-color var(--transition);
        }
        .site-header.scrolled { background: rgba(11, 13, 17, 0.98); border-color: rgba(251,191,36,0.15); }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: var(--header-height);
        }
        .logo {
            font-size: 1.35rem;
            font-weight: 800;
            letter-spacing: -0.02em;
            color: var(--text-primary);
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .logo i { color: var(--primary); font-size: 1.6rem; }
        .logo:hover { color: var(--primary); }
        .logo .logo-highlight { color: var(--primary); }

        .nav-list {
            display: flex;
            align-items: center;
            gap: 4px;
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .nav-list .nav-item { position: relative; }
        .nav-list .nav-link {
            display: flex;
            align-items: center;
            gap: 6px;
            padding: 8px 18px;
            border-radius: var(--radius-sm);
            color: var(--text-secondary);
            font-size: 0.92rem;
            font-weight: 500;
            transition: all var(--transition);
            white-space: nowrap;
        }
        .nav-list .nav-link i { font-size: 0.85rem; opacity: 0.6; }
        .nav-list .nav-link:hover,
        .nav-list .nav-link.active {
            color: var(--text-primary);
            background: rgba(251,191,36,0.08);
        }
        .nav-list .nav-link.active {
            color: var(--primary);
            box-shadow: inset 0 -2px 0 var(--primary);
        }
        .nav-list .nav-link.active i { opacity: 1; color: var(--primary); }

        .nav-cta {
            background: linear-gradient(135deg, var(--primary), var(--primary-dark)) !important;
            color: #0b0d11 !important;
            font-weight: 700 !important;
            padding: 8px 22px !important;
            border-radius: var(--radius-sm) !important;
            box-shadow: 0 0 24px var(--primary-glow);
            transition: all var(--transition) !important;
        }
        .nav-cta i { color: #0b0d11 !important; opacity: 1 !important; }
        .nav-cta:hover {
            transform: translateY(-1px);
            box-shadow: 0 0 40px var(--primary-glow) !important;
            background: linear-gradient(135deg, var(--primary-dark), var(--primary)) !important;
            color: #0b0d11 !important;
        }

        /* Mobile toggle */
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            color: var(--text-primary);
            font-size: 1.5rem;
            padding: 6px 10px;
            cursor: pointer;
            border-radius: var(--radius-sm);
            transition: background var(--transition);
        }
        .nav-toggle:hover { background: rgba(251,191,36,0.08); }

        @media (max-width: 992px) {
            .nav-toggle { display: block; }
            .nav-collapse {
                position: fixed;
                top: var(--header-height);
                left: 0;
                right: 0;
                background: rgba(11,13,17,0.98);
                backdrop-filter: blur(24px);
                border-bottom: 1px solid var(--border-color);
                padding: 16px 20px;
                max-height: 0;
                overflow: hidden;
                transition: max-height 0.4s ease, padding 0.3s ease;
            }
            .nav-collapse.open { max-height: 480px; padding: 20px; }
            .nav-list {
                flex-direction: column;
                gap: 6px;
                width: 100%;
            }
            .nav-list .nav-link {
                width: 100%;
                padding: 12px 16px;
                border-radius: var(--radius-sm);
            }
            .nav-list .nav-link.active { box-shadow: inset 2px 0 0 var(--primary); }
            .nav-cta { text-align: center; justify-content: center; }
        }

        /* ===== Hero ===== */
        .hero-section {
            padding: 140px 0 80px;
            background: linear-gradient(180deg, #0b0d11 0%, #0f1219 50%, #161a22 100%);
            position: relative;
            overflow: hidden;
        }
        .hero-section::before {
            content: '';
            position: absolute;
            top: -40%;
            left: -20%;
            width: 80%;
            height: 80%;
            background: radial-gradient(circle at 30% 40%, rgba(251,191,36,0.04) 0%, transparent 70%);
            pointer-events: none;
        }
        .hero-section::after {
            content: '';
            position: absolute;
            bottom: -30%;
            right: -10%;
            width: 60%;
            height: 60%;
            background: radial-gradient(circle at 70% 60%, rgba(236,72,153,0.03) 0%, transparent 70%);
            pointer-events: none;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(251,191,36,0.1);
            border: 1px solid rgba(251,191,36,0.2);
            border-radius: 50px;
            padding: 6px 18px 6px 12px;
            font-size: 0.82rem;
            color: var(--primary);
            margin-bottom: 24px;
            animation: pulse-glow 2.5s ease-in-out infinite;
        }
        .hero-badge i { font-size: 0.7rem; }
        @keyframes pulse-glow {
            0%, 100% { border-color: rgba(251,191,36,0.2); box-shadow: 0 0 12px rgba(251,191,36,0.05); }
            50% { border-color: rgba(251,191,36,0.5); box-shadow: 0 0 24px rgba(251,191,36,0.12); }
        }
        .hero-title {
            font-size: 3.2rem;
            font-weight: 800;
            line-height: 1.15;
            margin-bottom: 20px;
            letter-spacing: -0.02em;
        }
        .hero-title .highlight { color: var(--primary); }
        .hero-desc {
            font-size: 1.15rem;
            color: var(--text-secondary);
            max-width: 620px;
            margin-bottom: 32px;
            line-height: 1.7;
        }
        .hero-actions { display: flex; flex-wrap: wrap; gap: 14px; align-items: center; }
        .hero-stats {
            display: flex;
            gap: 40px;
            margin-top: 50px;
            padding-top: 30px;
            border-top: 1px solid var(--border-color);
        }
        .hero-stat-item { text-align: left; }
        .hero-stat-item .num {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--primary);
            display: block;
        }
        .hero-stat-item .label {
            font-size: 0.85rem;
            color: var(--text-muted);
        }
        @media (max-width: 768px) {
            .hero-section { padding: 110px 0 50px; }
            .hero-title { font-size: 2rem; }
            .hero-desc { font-size: 1rem; }
            .hero-stats { gap: 24px; flex-wrap: wrap; }
            .hero-stat-item .num { font-size: 1.4rem; }
        }

        /* ===== Buttons ===== */
        .btn-neon {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 32px;
            border-radius: var(--radius-sm);
            font-weight: 700;
            font-size: 1rem;
            border: none;
            cursor: pointer;
            transition: all var(--transition);
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #0b0d11;
            box-shadow: 0 0 30px var(--primary-glow);
        }
        .btn-neon:hover {
            transform: translateY(-2px);
            box-shadow: 0 0 50px var(--primary-glow);
            color: #0b0d11;
        }
        .btn-neon:active { transform: translateY(0); }

        .btn-outline-neon {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 13px 30px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 1rem;
            border: 1.5px solid var(--border-color);
            background: transparent;
            color: var(--text-primary);
            cursor: pointer;
            transition: all var(--transition);
        }
        .btn-outline-neon:hover {
            border-color: var(--primary);
            background: rgba(251,191,36,0.06);
            color: var(--primary);
            box-shadow: 0 0 24px var(--primary-glow);
        }

        .btn-sm { padding: 10px 20px; font-size: 0.88rem; }

        /* ===== Section spacing ===== */
        .section-block { padding: 80px 0; }
        .section-block-alt { background: var(--bg-section-alt); }
        @media (max-width: 768px) { .section-block { padding: 50px 0; } }

        /* ===== Cards ===== */
        .card-neon {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius);
            padding: 28px 24px;
            transition: all var(--transition);
            position: relative;
            overflow: hidden;
        }
        .card-neon::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 2px;
            background: linear-gradient(90deg, transparent, var(--primary), transparent);
            opacity: 0;
            transition: opacity var(--transition);
        }
        .card-neon:hover {
            border-color: rgba(251,191,36,0.2);
            background: var(--bg-card-hover);
            transform: translateY(-4px);
            box-shadow: var(--shadow-card);
        }
        .card-neon:hover::before { opacity: 1; }
        .card-neon .card-icon {
            font-size: 2rem;
            color: var(--primary);
            margin-bottom: 16px;
        }
        .card-neon h3 { font-size: 1.2rem; margin-bottom: 10px; }
        .card-neon p { color: var(--text-secondary); font-size: 0.92rem; margin-bottom: 0; }

        /* ===== Category cards ===== */
        .cat-card {
            display: flex;
            flex-direction: column;
            align-items: center;
            text-align: center;
            padding: 32px 20px;
            border-radius: var(--radius);
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            transition: all var(--transition);
            position: relative;
        }
        .cat-card:hover {
            border-color: var(--primary);
            transform: translateY(-4px);
            box-shadow: var(--shadow-card), 0 0 30px var(--primary-glow);
        }
        .cat-card .cat-icon {
            width: 64px;
            height: 64px;
            border-radius: 50%;
            background: rgba(251,191,36,0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.6rem;
            color: var(--primary);
            margin-bottom: 16px;
            transition: all var(--transition);
        }
        .cat-card:hover .cat-icon { background: rgba(251,191,36,0.18); transform: scale(1.05); }
        .cat-card h3 { font-size: 1.1rem; margin-bottom: 8px; }
        .cat-card p { font-size: 0.88rem; color: var(--text-secondary); margin-bottom: 16px; }
        .cat-card .cat-tag {
            display: inline-block;
            padding: 4px 14px;
            border-radius: 50px;
            font-size: 0.75rem;
            background: rgba(251,191,36,0.1);
            color: var(--primary);
            border: 1px solid rgba(251,191,36,0.15);
        }

        /* ===== News / List items ===== */
        .news-item {
            display: flex;
            gap: 20px;
            padding: 20px 0;
            border-bottom: 1px solid var(--border-color);
            transition: all var(--transition);
        }
        .news-item:last-child { border-bottom: none; }
        .news-item:hover { padding-left: 8px; }
        .news-item .news-meta {
            display: flex;
            gap: 12px;
            align-items: center;
            font-size: 0.8rem;
            color: var(--text-muted);
            margin-bottom: 6px;
            flex-shrink: 0;
        }
        .news-item .news-meta .badge {
            background: rgba(251,191,36,0.12);
            color: var(--primary);
            padding: 2px 12px;
            border-radius: 50px;
            font-size: 0.7rem;
            font-weight: 600;
        }
        .news-item .news-title {
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 4px;
            transition: color var(--transition);
        }
        .news-item .news-title:hover { color: var(--primary); }
        .news-item .news-desc {
            color: var(--text-secondary);
            font-size: 0.9rem;
            margin-bottom: 0;
        }
        .news-item .news-time { white-space: nowrap; }
        @media (max-width: 576px) {
            .news-item { flex-direction: column; gap: 8px; }
        }

        /* ===== Stats / Number block ===== */
        .stat-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
        .stat-card {
            text-align: center;
            padding: 32px 16px;
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius);
            transition: all var(--transition);
        }
        .stat-card:hover { border-color: rgba(251,191,36,0.2); background: var(--bg-card-hover); }
        .stat-card .stat-num {
            font-size: 2.4rem;
            font-weight: 800;
            color: var(--primary);
            display: block;
            line-height: 1.2;
        }
        .stat-card .stat-label { font-size: 0.88rem; color: var(--text-secondary); margin-top: 6px; }
        @media (max-width: 768px) { .stat-grid { grid-template-columns: repeat(2, 1fr); } }
        @media (max-width: 480px) { .stat-grid { grid-template-columns: 1fr 1fr; } }

        /* ===== Steps / Timeline ===== */
        .step-list { display: flex; flex-direction: column; gap: 20px; max-width: 700px; }
        .step-item {
            display: flex;
            gap: 20px;
            align-items: flex-start;
            padding: 20px 24px;
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius);
            transition: all var(--transition);
        }
        .step-item:hover { border-color: rgba(251,191,36,0.2); background: var(--bg-card-hover); }
        .step-item .step-num {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #0b0d11;
            font-weight: 800;
            font-size: 1.1rem;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }
        .step-item h4 { font-size: 1.05rem; margin-bottom: 4px; }
        .step-item p { color: var(--text-secondary); font-size: 0.9rem; margin-bottom: 0; }

        /* ===== FAQ ===== */
        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius);
            margin-bottom: 12px;
            overflow: hidden;
            transition: all var(--transition);
        }
        .faq-item:hover { border-color: rgba(251,191,36,0.15); }
        .faq-question {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 18px 24px;
            font-weight: 600;
            cursor: pointer;
            transition: background var(--transition);
            user-select: none;
            gap: 16px;
        }
        .faq-question:hover { background: rgba(251,191,36,0.04); }
        .faq-question i { color: var(--primary); transition: transform var(--transition); font-size: 0.9rem; }
        .faq-item.open .faq-question i { transform: rotate(180deg); }
        .faq-answer {
            padding: 0 24px 18px;
            color: var(--text-secondary);
            font-size: 0.92rem;
            line-height: 1.7;
            display: none;
        }
        .faq-item.open .faq-answer { display: block; }

        /* ===== CTA ===== */
        .cta-section {
            padding: 80px 0;
            background: linear-gradient(135deg, #0f1219, #161a22);
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
            text-align: center;
        }
        .cta-section h2 { font-size: 2rem; margin-bottom: 12px; }
        .cta-section p { color: var(--text-secondary); max-width: 520px; margin: 0 auto 28px; font-size: 1.05rem; }

        /* ===== Footer ===== */
        .site-footer {
            background: #080a0e;
            border-top: 1px solid var(--border-color);
            padding: 50px 0 30px;
        }
        .footer-brand { font-size: 1.2rem; font-weight: 700; margin-bottom: 8px; display: flex; align-items: center; gap: 8px; }
        .footer-brand i { color: var(--primary); }
        .footer-desc { color: var(--text-muted); font-size: 0.88rem; max-width: 340px; line-height: 1.7; }
        .footer-heading { font-size: 0.95rem; font-weight: 600; margin-bottom: 14px; color: var(--text-primary); }
        .footer-links { list-style: none; padding: 0; margin: 0; }
        .footer-links li { margin-bottom: 8px; }
        .footer-links a {
            color: var(--text-muted);
            font-size: 0.88rem;
            transition: color var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .footer-links a:hover { color: var(--primary); }
        .footer-bottom {
            margin-top: 36px;
            padding-top: 20px;
            border-top: 1px solid var(--border-color);
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 0.82rem;
            color: var(--text-muted);
        }
        .footer-bottom a { color: var(--text-muted); }
        .footer-bottom a:hover { color: var(--primary); }
        @media (max-width: 768px) {
            .site-footer .row > div { margin-bottom: 28px; }
            .footer-bottom { flex-direction: column; text-align: center; }
        }

        /* ===== Empty state ===== */
        .empty-state {
            text-align: center;
            padding: 40px 20px;
            color: var(--text-muted);
        }
        .empty-state i { font-size: 2.4rem; margin-bottom: 12px; opacity: 0.4; }
        .empty-state p { font-size: 0.95rem; }

        /* ===== Misc ===== */
        .glow-dot {
            display: inline-block;
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: #22c55e;
            box-shadow: 0 0 12px rgba(34,197,94,0.6);
            margin-right: 6px;
            animation: pulse-dot 2s ease-in-out infinite;
        }
        @keyframes pulse-dot {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.4; }
        }
        .live-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(239,68,68,0.12);
            color: #ef4444;
            padding: 3px 14px;
            border-radius: 50px;
            font-size: 0.75rem;
            font-weight: 600;
        }
        .live-tag i { font-size: 0.55rem; }

        .divider-glow {
            height: 1px;
            background: linear-gradient(90deg, transparent, var(--primary), transparent);
            opacity: 0.15;
            margin: 0;
        }

        /* ===== Bootstrap overrides ===== */
        .row.gap-y { --bs-gutter-y: 24px; }

        /* Scrollbar */
        ::-webkit-scrollbar { width: 6px; }
        ::-webkit-scrollbar-track { background: var(--bg-dark); }
        ::-webkit-scrollbar-thumb { background: var(--border-color); border-radius: 3px; }
        ::-webkit-scrollbar-thumb:hover { background: var(--text-muted); }

/* roulang page: article */
:root {
            --primary: #f0b90b;
            --primary-hover: #d4a509;
            --primary-glow: rgba(240, 185, 11, 0.35);
            --secondary: #1a1a2e;
            --bg-dark: #0d0d1a;
            --bg-card: #16162b;
            --bg-card-hover: #1e1e3a;
            --text-light: #f0f0f0;
            --text-muted: #a0a0b8;
            --text-weak: #6c6c8a;
            --border-color: #2a2a4a;
            --border-glow: rgba(240, 185, 11, 0.15);
            --radius: 14px;
            --radius-sm: 8px;
            --radius-lg: 20px;
            --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.5), 0 0 0 1px rgba(240, 185, 11, 0.05);
            --shadow-glow: 0 0 30px rgba(240, 185, 11, 0.10);
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
            --spacing-section: 5rem;
            --spacing-block: 3rem;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-sans);
            background: var(--bg-dark);
            color: var(--text-light);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--primary-hover);
        }
        img {
            max-width: 100%;
            height: auto;
            border-radius: var(--radius-sm);
        }
        button,
        input,
        textarea {
            font-family: inherit;
        }
        ul {
            list-style: none;
            padding: 0;
        }

        .container {
            max-width: 1200px;
            padding: 0 1.5rem;
            margin: 0 auto;
        }

        /* ===== Header / Nav ===== */
        .site-header {
            background: linear-gradient(135deg, #0a0a18 0%, #14142a 100%);
            border-bottom: 1px solid var(--border-color);
            box-shadow: 0 4px 30px rgba(0, 0, 0, 0.6), inset 0 1px 0 rgba(240, 185, 11, 0.06);
            position: sticky;
            top: 0;
            z-index: 1050;
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding-top: 0.75rem;
            padding-bottom: 0.75rem;
            flex-wrap: nowrap;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 0.6rem;
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--text-light);
            letter-spacing: -0.5px;
            transition: opacity var(--transition);
            flex-shrink: 0;
        }
        .logo:hover {
            opacity: 0.9;
            color: var(--text-light);
        }
        .logo i {
            color: var(--primary);
            font-size: 1.4rem;
            filter: drop-shadow(0 0 8px var(--primary-glow));
        }
        .logo-highlight {
            color: var(--primary);
        }

        .nav-toggle {
            display: none;
            background: transparent;
            border: 1px solid var(--border-color);
            color: var(--text-light);
            font-size: 1.3rem;
            padding: 0.4rem 0.8rem;
            border-radius: var(--radius-sm);
            cursor: pointer;
            transition: all var(--transition);
        }
        .nav-toggle:hover {
            background: var(--bg-card);
            border-color: var(--primary);
        }

        .nav-collapse {
            display: flex;
            align-items: center;
        }

        .nav-list {
            display: flex;
            align-items: center;
            gap: 0.25rem;
            margin: 0;
            padding: 0;
        }

        .nav-item {
            margin: 0;
        }

        .nav-link {
            display: flex;
            align-items: center;
            gap: 0.4rem;
            padding: 0.55rem 1.1rem;
            border-radius: var(--radius-sm);
            color: var(--text-muted);
            font-weight: 500;
            font-size: 0.92rem;
            transition: all var(--transition);
            position: relative;
            white-space: nowrap;
        }
        .nav-link i {
            font-size: 0.85rem;
        }
        .nav-link:hover {
            color: var(--text-light);
            background: rgba(240, 185, 11, 0.06);
        }
        .nav-link.active {
            color: var(--primary);
            background: rgba(240, 185, 11, 0.10);
            box-shadow: inset 0 -2px 0 var(--primary), 0 0 20px rgba(240, 185, 11, 0.05);
        }
        .nav-link.active i {
            color: var(--primary);
        }

        .nav-cta {
            background: linear-gradient(135deg, var(--primary), #d4a509);
            color: #0d0d1a !important;
            font-weight: 700;
            padding: 0.55rem 1.4rem;
            border-radius: var(--radius-sm);
            box-shadow: 0 0 20px rgba(240, 185, 11, 0.25);
            transition: all var(--transition);
        }
        .nav-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 0 30px rgba(240, 185, 11, 0.40);
            background: linear-gradient(135deg, #f5c518, #d4a509);
            color: #0d0d1a !important;
        }
        .nav-cta i {
            color: #0d0d1a !important;
        }

        /* ===== Article Hero ===== */
        .article-hero {
            padding: 3.5rem 0 2rem;
            background: linear-gradient(180deg, rgba(240, 185, 11, 0.04) 0%, transparent 100%);
            border-bottom: 1px solid var(--border-color);
        }

        .article-hero .breadcrumb {
            background: transparent;
            padding: 0;
            margin-bottom: 1.5rem;
            font-size: 0.85rem;
            color: var(--text-weak);
        }
        .article-hero .breadcrumb a {
            color: var(--text-muted);
        }
        .article-hero .breadcrumb a:hover {
            color: var(--primary);
        }
        .article-hero .breadcrumb .separator {
            margin: 0 0.5rem;
            color: var(--text-weak);
        }

        .article-title {
            font-size: 2.2rem;
            font-weight: 800;
            line-height: 1.3;
            letter-spacing: -0.5px;
            margin-bottom: 1rem;
            color: var(--text-light);
        }

        .article-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 1.2rem;
            align-items: center;
            font-size: 0.88rem;
            color: var(--text-muted);
            margin-bottom: 0.5rem;
        }
        .article-meta span {
            display: flex;
            align-items: center;
            gap: 0.4rem;
        }
        .article-meta i {
            color: var(--primary);
            font-size: 0.8rem;
        }
        .article-meta .badge-category {
            background: rgba(240, 185, 11, 0.15);
            color: var(--primary);
            padding: 0.2rem 0.9rem;
            border-radius: 20px;
            font-size: 0.78rem;
            font-weight: 600;
            border: 1px solid rgba(240, 185, 11, 0.2);
        }

        /* ===== Article Main ===== */
        .article-main {
            padding: 3rem 0 var(--spacing-section);
        }

        .article-body {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-card);
            padding: 2.5rem 2.8rem;
            margin-bottom: 2.5rem;
        }

        .article-body h2 {
            font-size: 1.6rem;
            font-weight: 700;
            margin-top: 2rem;
            margin-bottom: 1rem;
            color: var(--text-light);
            border-left: 4px solid var(--primary);
            padding-left: 1rem;
        }
        .article-body h3 {
            font-size: 1.25rem;
            font-weight: 600;
            margin-top: 1.6rem;
            margin-bottom: 0.8rem;
            color: var(--text-light);
        }
        .article-body p {
            margin-bottom: 1.2rem;
            color: #d0d0e0;
            line-height: 1.8;
        }
        .article-body ul,
        .article-body ol {
            margin-bottom: 1.2rem;
            padding-left: 1.5rem;
            color: #d0d0e0;
        }
        .article-body li {
            margin-bottom: 0.4rem;
        }
        .article-body a {
            color: var(--primary);
            text-decoration: underline;
        }
        .article-body a:hover {
            color: var(--primary-hover);
        }
        .article-body blockquote {
            border-left: 4px solid var(--primary);
            padding: 1rem 1.5rem;
            margin: 1.5rem 0;
            background: rgba(240, 185, 11, 0.04);
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            color: #c0c0d8;
            font-style: italic;
        }
        .article-body img {
            border-radius: var(--radius);
            margin: 1.5rem 0;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
        }
        .article-body .table-wrap {
            overflow-x: auto;
            margin: 1.5rem 0;
        }
        .article-body table {
            width: 100%;
            border-collapse: collapse;
            background: rgba(0, 0, 0, 0.2);
            border-radius: var(--radius-sm);
        }
        .article-body table th,
        .article-body table td {
            padding: 0.75rem 1rem;
            border: 1px solid var(--border-color);
            text-align: left;
        }
        .article-body table th {
            background: rgba(240, 185, 11, 0.08);
            color: var(--primary);
            font-weight: 600;
        }
        .article-body table td {
            color: #c0c0d8;
        }

        .article-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 0.6rem;
            margin-top: 2rem;
            padding-top: 1.5rem;
            border-top: 1px solid var(--border-color);
        }
        .article-tags .tag {
            background: rgba(240, 185, 11, 0.08);
            color: var(--primary);
            padding: 0.3rem 1rem;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 500;
            border: 1px solid rgba(240, 185, 11, 0.12);
            transition: all var(--transition);
        }
        .article-tags .tag:hover {
            background: rgba(240, 185, 11, 0.18);
            border-color: var(--primary);
        }

        /* ===== Article Nav ===== */
        .article-nav {
            display: flex;
            justify-content: space-between;
            gap: 1.5rem;
            margin-top: 2rem;
            flex-wrap: wrap;
        }
        .article-nav a {
            display: flex;
            align-items: center;
            gap: 0.6rem;
            padding: 0.8rem 1.5rem;
            background: var(--bg-card);
            border-radius: var(--radius);
            border: 1px solid var(--border-color);
            color: var(--text-muted);
            font-size: 0.9rem;
            transition: all var(--transition);
            flex: 1;
            max-width: 48%;
        }
        .article-nav a:hover {
            border-color: var(--primary);
            color: var(--text-light);
            background: var(--bg-card-hover);
            box-shadow: var(--shadow-glow);
        }
        .article-nav .nav-next {
            text-align: right;
            justify-content: flex-end;
        }

        /* ===== Related Section ===== */
        .related-section {
            padding: var(--spacing-block) 0;
            border-top: 1px solid var(--border-color);
        }
        .related-section .section-title {
            font-size: 1.5rem;
            font-weight: 700;
            margin-bottom: 1.5rem;
            display: flex;
            align-items: center;
            gap: 0.6rem;
        }
        .related-section .section-title i {
            color: var(--primary);
        }

        .related-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 1.2rem;
        }
        .related-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            border: 1px solid var(--border-color);
            padding: 1.4rem 1.6rem;
            transition: all var(--transition);
        }
        .related-card:hover {
            border-color: rgba(240, 185, 11, 0.3);
            transform: translateY(-3px);
            box-shadow: var(--shadow-glow);
            background: var(--bg-card-hover);
        }
        .related-card .card-cat {
            font-size: 0.75rem;
            color: var(--primary);
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 0.5px;
            margin-bottom: 0.4rem;
        }
        .related-card h4 {
            font-size: 1rem;
            font-weight: 600;
            margin-bottom: 0.4rem;
            line-height: 1.4;
        }
        .related-card h4 a {
            color: var(--text-light);
        }
        .related-card h4 a:hover {
            color: var(--primary);
        }
        .related-card .card-date {
            font-size: 0.8rem;
            color: var(--text-weak);
        }

        /* ===== FAQ ===== */
        .faq-section {
            padding: var(--spacing-block) 0;
            border-top: 1px solid var(--border-color);
        }
        .faq-section .section-title {
            font-size: 1.5rem;
            font-weight: 700;
            margin-bottom: 1.5rem;
            display: flex;
            align-items: center;
            gap: 0.6rem;
        }
        .faq-section .section-title i {
            color: var(--primary);
        }

        .faq-accordion .accordion-item {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius) !important;
            margin-bottom: 0.8rem;
            overflow: hidden;
        }
        .faq-accordion .accordion-button {
            background: var(--bg-card);
            color: var(--text-light);
            font-weight: 600;
            font-size: 0.98rem;
            padding: 1.1rem 1.5rem;
            box-shadow: none !important;
            border-radius: var(--radius) !important;
            transition: all var(--transition);
        }
        .faq-accordion .accordion-button::after {
            filter: invert(0.8) sepia(1) hue-rotate(20deg) saturate(3);
        }
        .faq-accordion .accordion-button:not(.collapsed) {
            background: rgba(240, 185, 11, 0.06);
            color: var(--primary);
        }
        .faq-accordion .accordion-body {
            background: rgba(0, 0, 0, 0.15);
            color: #c0c0d8;
            padding: 1rem 1.5rem 1.2rem;
            font-size: 0.92rem;
            line-height: 1.7;
        }

        /* ===== CTA ===== */
        .cta-section {
            padding: var(--spacing-block) 0;
            border-top: 1px solid var(--border-color);
        }
        .cta-box {
            background: linear-gradient(135deg, rgba(240, 185, 11, 0.08), rgba(240, 185, 11, 0.02));
            border: 1px solid rgba(240, 185, 11, 0.20);
            border-radius: var(--radius-lg);
            padding: 3rem 2.5rem;
            text-align: center;
            box-shadow: var(--shadow-glow);
        }
        .cta-box h3 {
            font-size: 1.6rem;
            font-weight: 700;
            margin-bottom: 0.8rem;
        }
        .cta-box p {
            color: var(--text-muted);
            max-width: 600px;
            margin: 0 auto 1.8rem;
            font-size: 1.05rem;
        }
        .cta-box .btn-cta {
            display: inline-flex;
            align-items: center;
            gap: 0.6rem;
            background: linear-gradient(135deg, var(--primary), #d4a509);
            color: #0d0d1a;
            font-weight: 700;
            padding: 0.85rem 2.2rem;
            border-radius: var(--radius-sm);
            font-size: 1.05rem;
            border: none;
            box-shadow: 0 0 30px rgba(240, 185, 11, 0.25);
            transition: all var(--transition);
        }
        .cta-box .btn-cta:hover {
            transform: translateY(-3px);
            box-shadow: 0 0 40px rgba(240, 185, 11, 0.40);
            color: #0d0d1a;
        }

        /* ===== Not Found ===== */
        .not-found-box {
            text-align: center;
            padding: 4rem 2rem;
        }
        .not-found-box i {
            font-size: 3.5rem;
            color: var(--primary);
            margin-bottom: 1.2rem;
            opacity: 0.6;
        }
        .not-found-box h2 {
            font-size: 1.8rem;
            font-weight: 700;
            margin-bottom: 0.8rem;
        }
        .not-found-box p {
            color: var(--text-muted);
            margin-bottom: 1.5rem;
        }
        .not-found-box .btn-back {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: var(--bg-card);
            color: var(--text-light);
            padding: 0.7rem 1.8rem;
            border-radius: var(--radius-sm);
            border: 1px solid var(--border-color);
            transition: all var(--transition);
        }
        .not-found-box .btn-back:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: var(--bg-card-hover);
        }

        /* ===== Footer ===== */
        .site-footer {
            background: linear-gradient(135deg, #0a0a18 0%, #10102a 100%);
            border-top: 1px solid var(--border-color);
            padding: 4rem 0 2rem;
            margin-top: 0;
        }
        .footer-brand {
            display: flex;
            align-items: center;
            gap: 0.6rem;
            font-size: 1.4rem;
            font-weight: 800;
            color: var(--text-light);
            margin-bottom: 1rem;
        }
        .footer-brand i {
            color: var(--primary);
            filter: drop-shadow(0 0 8px var(--primary-glow));
        }
        .footer-desc {
            color: var(--text-weak);
            font-size: 0.9rem;
            line-height: 1.7;
            max-width: 360px;
        }
        .footer-heading {
            color: var(--text-light);
            font-size: 1rem;
            font-weight: 600;
            margin-bottom: 1.2rem;
            position: relative;
            padding-bottom: 0.5rem;
        }
        .footer-heading::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 30px;
            height: 2px;
            background: var(--primary);
        }
        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-links li {
            margin-bottom: 0.55rem;
        }
        .footer-links a {
            color: var(--text-weak);
            font-size: 0.88rem;
            transition: all var(--transition);
            display: flex;
            align-items: center;
            gap: 0.4rem;
        }
        .footer-links a:hover {
            color: var(--primary);
            padding-left: 4px;
        }
        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 1rem;
            margin-top: 3rem;
            padding-top: 1.5rem;
            border-top: 1px solid var(--border-color);
            font-size: 0.82rem;
            color: var(--text-weak);
        }
        .footer-bottom a {
            color: var(--text-muted);
        }
        .footer-bottom a:hover {
            color: var(--primary);
        }

        /* ===== Responsive ===== */
        @media (max-width: 991px) {
            .article-title {
                font-size: 1.8rem;
            }
            .article-body {
                padding: 1.8rem 1.5rem;
            }
            .cta-box {
                padding: 2rem 1.5rem;
            }
            .cta-box h3 {
                font-size: 1.3rem;
            }
            .related-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 767px) {
            .nav-toggle {
                display: block;
            }
            .nav-collapse {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                width: 100%;
                background: var(--bg-dark);
                border-bottom: 1px solid var(--border-color);
                padding: 0.8rem 1.5rem;
                box-shadow: 0 20px 40px rgba(0, 0, 0, 0.6);
            }
            .nav-collapse.show {
                display: block;
            }
            .nav-list {
                flex-direction: column;
                gap: 0.2rem;
                width: 100%;
            }
            .nav-link {
                width: 100%;
                justify-content: flex-start;
                padding: 0.7rem 1rem;
            }
            .nav-cta {
                margin-top: 0.4rem;
                text-align: center;
                justify-content: center;
            }

            .article-title {
                font-size: 1.4rem;
            }
            .article-meta {
                gap: 0.8rem;
                font-size: 0.8rem;
            }
            .article-body {
                padding: 1.2rem 1rem;
                border-radius: var(--radius);
            }
            .article-body h2 {
                font-size: 1.25rem;
            }
            .article-body h3 {
                font-size: 1.05rem;
            }

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

            .article-nav a {
                max-width: 100%;
                flex: 1 1 100%;
            }
            .article-nav .nav-next {
                text-align: left;
                justify-content: flex-start;
            }

            .cta-box {
                padding: 1.8rem 1.2rem;
            }
            .cta-box h3 {
                font-size: 1.15rem;
            }
            .cta-box .btn-cta {
                width: 100%;
                justify-content: center;
            }

            .site-footer {
                padding: 2.5rem 0 1.5rem;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 1rem;
            }
            .article-title {
                font-size: 1.2rem;
            }
            .article-hero {
                padding: 2rem 0 1.2rem;
            }
            .article-main {
                padding: 1.5rem 0 var(--spacing-section);
            }
            .article-body {
                padding: 1rem 0.8rem;
            }
            .logo {
                font-size: 1.2rem;
            }
            .related-section .section-title {
                font-size: 1.2rem;
            }
            .faq-section .section-title {
                font-size: 1.2rem;
            }
            .faq-accordion .accordion-button {
                font-size: 0.85rem;
                padding: 0.9rem 1rem;
            }
            .faq-accordion .accordion-body {
                font-size: 0.85rem;
                padding: 0.8rem 1rem 1rem;
            }
        }

        /* Skeleton shimmer for loading (optional) */
        .shimmer {
            background: linear-gradient(90deg, var(--bg-card) 25%, var(--bg-card-hover) 50%, var(--bg-card) 75%);
            background-size: 200% 100%;
            animation: shimmer 1.5s infinite;
        }
        @keyframes shimmer {
            0% {
                background-position: 200% 0;
            }
            100% {
                background-position: -200% 0;
            }
        }

/* roulang page: category1 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #f5c518;
            --primary-dark: #d4a814;
            --primary-glow: rgba(245, 197, 24, 0.35);
            --secondary: #ff6b35;
            --accent: #00e5ff;
            --bg-dark: #0a0d1a;
            --bg-dark2: #111624;
            --bg-card: #161c2e;
            --bg-card-hover: #1c2440;
            --bg-surface: #1e2742;
            --text-light: #f0f4ff;
            --text-muted: #8a94b0;
            --text-dim: #5a6480;
            --border-color: rgba(245, 197, 24, 0.15);
            --border-glow: rgba(245, 197, 24, 0.25);
            --radius: 16px;
            --radius-sm: 10px;
            --radius-lg: 24px;
            --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.5), 0 0 0 1px rgba(245, 197, 24, 0.06);
            --shadow-glow: 0 0 30px rgba(245, 197, 24, 0.12);
            --shadow-hover: 0 12px 48px rgba(0, 0, 0, 0.6), 0 0 0 1px rgba(245, 197, 24, 0.15);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Segoe UI', system-ui, -apple-system, sans-serif;
            --container-w: 1200px;
        }

        /* ===== 基础重置 ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }
        body {
            margin: 0;
            padding: 0;
            font-family: var(--font-sans);
            font-size: 1rem;
            line-height: 1.7;
            background: var(--bg-dark);
            color: var(--text-light);
            -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;
        }
        ul,
        ol {
            padding: 0;
            list-style: none;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            margin-top: 0;
            font-weight: 700;
            line-height: 1.3;
            color: var(--text-light);
        }
        p {
            margin-top: 0;
            color: var(--text-muted);
        }

        /* ===== 容器 ===== */
        .container {
            max-width: var(--container-w);
            margin: 0 auto;
            padding-left: 20px;
            padding-right: 20px;
        }

        /* ===== 导航 ===== */
        .site-header {
            background: rgba(10, 13, 26, 0.95);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border-color);
            position: sticky;
            top: 0;
            z-index: 1050;
            box-shadow: 0 4px 30px rgba(0, 0, 0, 0.5);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding-top: 12px;
            padding-bottom: 12px;
            flex-wrap: nowrap;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--text-light);
            text-decoration: none;
            letter-spacing: -0.5px;
            flex-shrink: 0;
        }
        .logo i {
            color: var(--primary);
            font-size: 1.7rem;
            filter: drop-shadow(0 0 8px var(--primary-glow));
        }
        .logo:hover {
            color: var(--text-light);
        }
        .logo-highlight {
            color: var(--primary);
        }
        .nav-toggle {
            display: none;
            background: none;
            border: 1px solid var(--border-color);
            color: var(--text-light);
            font-size: 1.3rem;
            padding: 6px 14px;
            border-radius: var(--radius-sm);
            cursor: pointer;
            transition: var(--transition);
        }
        .nav-toggle:hover {
            border-color: var(--primary);
            color: var(--primary);
        }
        .nav-collapse {
            display: flex;
            align-items: center;
        }
        .nav-list {
            display: flex;
            align-items: center;
            gap: 6px;
            margin: 0;
            padding: 0;
            list-style: none;
        }
        .nav-item {
            margin: 0;
            padding: 0;
        }
        .nav-link {
            display: flex;
            align-items: center;
            gap: 6px;
            padding: 8px 18px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--text-muted);
            background: transparent;
            border: 1px solid transparent;
            transition: var(--transition);
            text-decoration: none;
        }
        .nav-link i {
            font-size: 0.85rem;
        }
        .nav-link:hover {
            color: var(--text-light);
            background: rgba(245, 197, 24, 0.08);
            border-color: rgba(245, 197, 24, 0.15);
        }
        .nav-link.active {
            color: #0a0d1a;
            background: var(--primary);
            border-color: var(--primary);
            box-shadow: 0 0 20px var(--primary-glow);
        }
        .nav-link.active i {
            color: #0a0d1a;
        }
        .nav-link.nav-cta {
            background: linear-gradient(135deg, var(--secondary), #e85d2c);
            color: #fff;
            border-color: transparent;
            box-shadow: 0 4px 20px rgba(255, 107, 53, 0.35);
            padding-left: 22px;
            padding-right: 22px;
        }
        .nav-link.nav-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 30px rgba(255, 107, 53, 0.5);
        }
        .nav-link.nav-cta i {
            color: #fff;
        }

        /* ===== 移动端导航 ===== */
        @media (max-width: 991px) {
            .nav-toggle {
                display: block;
            }
            .nav-collapse {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: rgba(10, 13, 26, 0.98);
                backdrop-filter: blur(20px);
                border-bottom: 1px solid var(--border-color);
                padding: 16px 20px;
                flex-direction: column;
                box-shadow: 0 20px 60px rgba(0, 0, 0, 0.7);
            }
            .nav-collapse.show {
                display: flex;
            }
            .nav-list {
                flex-direction: column;
                width: 100%;
                gap: 4px;
            }
            .nav-link {
                width: 100%;
                justify-content: center;
                padding: 12px 18px;
                font-size: 1rem;
            }
            .nav-link.nav-cta {
                margin-top: 8px;
            }
        }

        /* ===== 页面标题区 ===== */
        .page-hero {
            padding: 60px 0 40px;
            background: linear-gradient(180deg, var(--bg-dark2) 0%, var(--bg-dark) 100%);
            border-bottom: 1px solid var(--border-color);
            text-align: center;
        }
        .page-hero h1 {
            font-size: 2.6rem;
            font-weight: 800;
            margin-bottom: 12px;
            background: linear-gradient(135deg, var(--text-light) 30%, var(--primary) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .page-hero p {
            font-size: 1.1rem;
            max-width: 700px;
            margin: 0 auto;
            color: var(--text-muted);
        }
        .page-hero .breadcrumb-custom {
            display: flex;
            justify-content: center;
            gap: 8px;
            font-size: 0.9rem;
            color: var(--text-dim);
            margin-top: 16px;
        }
        .page-hero .breadcrumb-custom a {
            color: var(--primary);
        }
        .page-hero .breadcrumb-custom span {
            color: var(--text-muted);
        }

        @media (max-width: 768px) {
            .page-hero h1 {
                font-size: 1.8rem;
            }
            .page-hero p {
                font-size: 0.95rem;
            }
        }

        /* ===== 板块通用 ===== */
        .section-padding {
            padding: 64px 0;
        }
        .section-title {
            font-size: 2rem;
            font-weight: 800;
            margin-bottom: 8px;
            text-align: center;
        }
        .section-subtitle {
            font-size: 1.05rem;
            color: var(--text-muted);
            text-align: center;
            max-width: 600px;
            margin: 0 auto 40px;
        }
        .section-title .highlight {
            color: var(--primary);
        }

        @media (max-width: 768px) {
            .section-padding {
                padding: 40px 0;
            }
            .section-title {
                font-size: 1.5rem;
            }
            .section-subtitle {
                font-size: 0.92rem;
                margin-bottom: 28px;
            }
        }

        /* ===== 分类筛选标签 ===== */
        .filter-tabs {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 10px;
            margin-bottom: 36px;
        }
        .filter-tab {
            padding: 8px 22px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.9rem;
            background: var(--bg-card);
            color: var(--text-muted);
            border: 1px solid var(--border-color);
            cursor: pointer;
            transition: var(--transition);
        }
        .filter-tab:hover {
            border-color: var(--primary);
            color: var(--text-light);
        }
        .filter-tab.active {
            background: var(--primary);
            color: #0a0d1a;
            border-color: var(--primary);
            box-shadow: 0 0 20px var(--primary-glow);
        }

        /* ===== 赛事卡片 ===== */
        .sport-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            border: 1px solid var(--border-color);
            padding: 24px;
            transition: var(--transition);
            box-shadow: var(--shadow-card);
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .sport-card:hover {
            transform: translateY(-4px);
            border-color: rgba(245, 197, 24, 0.3);
            box-shadow: var(--shadow-hover);
            background: var(--bg-card-hover);
        }
        .sport-card .card-top {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 14px;
        }
        .sport-card .card-badge {
            background: rgba(245, 197, 24, 0.15);
            color: var(--primary);
            padding: 2px 14px;
            border-radius: 50px;
            font-size: 0.75rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }
        .sport-card .card-status {
            font-size: 0.8rem;
            color: var(--accent);
            font-weight: 600;
        }
        .sport-card .card-status i {
            margin-right: 4px;
        }
        .sport-card h3 {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--text-light);
        }
        .sport-card .card-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            font-size: 0.85rem;
            color: var(--text-dim);
            margin-bottom: 12px;
        }
        .sport-card .card-meta i {
            margin-right: 4px;
            color: var(--primary);
        }
        .sport-card .card-desc {
            color: var(--text-muted);
            font-size: 0.92rem;
            line-height: 1.6;
            flex: 1;
            margin-bottom: 16px;
        }
        .sport-card .card-footer {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding-top: 14px;
            border-top: 1px solid rgba(245, 197, 24, 0.08);
        }
        .sport-card .card-tags {
            display: flex;
            gap: 6px;
            flex-wrap: wrap;
        }
        .sport-card .card-tags .tag {
            background: rgba(255, 255, 255, 0.05);
            color: var(--text-dim);
            padding: 2px 12px;
            border-radius: 50px;
            font-size: 0.7rem;
            font-weight: 500;
        }
        .sport-card .card-link {
            color: var(--primary);
            font-weight: 600;
            font-size: 0.85rem;
            transition: var(--transition);
        }
        .sport-card .card-link:hover {
            color: var(--primary-dark);
            transform: translateX(4px);
        }

        @media (max-width: 576px) {
            .sport-card {
                padding: 18px;
            }
            .sport-card h3 {
                font-size: 1rem;
            }
        }

        /* ===== 数据统计 ===== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
            gap: 20px;
            margin-top: 10px;
        }
        .stat-item {
            background: var(--bg-card);
            border-radius: var(--radius);
            padding: 28px 20px;
            text-align: center;
            border: 1px solid var(--border-color);
            transition: var(--transition);
        }
        .stat-item:hover {
            border-color: rgba(245, 197, 24, 0.25);
            transform: translateY(-2px);
        }
        .stat-number {
            font-size: 2.4rem;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
        }
        .stat-label {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-top: 6px;
        }
        @media (max-width: 576px) {
            .stat-number {
                font-size: 1.8rem;
            }
        }

        /* ===== 赛程时间线 ===== */
        .timeline-item {
            display: flex;
            gap: 20px;
            padding: 20px 0;
            border-bottom: 1px solid rgba(245, 197, 24, 0.06);
        }
        .timeline-item:last-child {
            border-bottom: none;
        }
        .timeline-time {
            flex-shrink: 0;
            width: 70px;
            font-weight: 700;
            color: var(--primary);
            font-size: 0.95rem;
            text-align: right;
        }
        .timeline-dot {
            flex-shrink: 0;
            width: 12px;
            height: 12px;
            border-radius: 50%;
            background: var(--primary);
            margin-top: 6px;
            box-shadow: 0 0 12px var(--primary-glow);
            position: relative;
        }
        .timeline-dot::after {
            content: '';
            position: absolute;
            top: 18px;
            left: 50%;
            transform: translateX(-50%);
            width: 2px;
            height: calc(100% + 20px);
            background: rgba(245, 197, 24, 0.15);
        }
        .timeline-item:last-child .timeline-dot::after {
            display: none;
        }
        .timeline-content {
            flex: 1;
        }
        .timeline-content h4 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 4px;
        }
        .timeline-content p {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-bottom: 0;
        }
        @media (max-width: 576px) {
            .timeline-time {
                width: 50px;
                font-size: 0.8rem;
            }
            .timeline-content h4 {
                font-size: 0.95rem;
            }
        }

        /* ===== 特色板块 ===== */
        .feature-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
            gap: 24px;
        }
        .feature-item {
            background: var(--bg-card);
            border-radius: var(--radius);
            padding: 28px 22px;
            border: 1px solid var(--border-color);
            text-align: center;
            transition: var(--transition);
        }
        .feature-item:hover {
            transform: translateY(-4px);
            border-color: rgba(245, 197, 24, 0.2);
            box-shadow: var(--shadow-hover);
        }
        .feature-icon {
            width: 60px;
            height: 60px;
            border-radius: 50%;
            background: rgba(245, 197, 24, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 16px;
            font-size: 1.6rem;
            color: var(--primary);
        }
        .feature-item h4 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 8px;
        }
        .feature-item p {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-bottom: 0;
        }

        /* ===== FAQ ===== */
        .faq-grid {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--bg-card);
            border-radius: var(--radius-sm);
            border: 1px solid var(--border-color);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: rgba(245, 197, 24, 0.2);
        }
        .faq-question {
            padding: 18px 22px;
            font-weight: 600;
            font-size: 1rem;
            color: var(--text-light);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            background: none;
            border: none;
            width: 100%;
            text-align: left;
            transition: var(--transition);
        }
        .faq-question i {
            transition: var(--transition);
            color: var(--primary);
            font-size: 0.85rem;
        }
        .faq-question[aria-expanded="true"] i {
            transform: rotate(180deg);
        }
        .faq-answer {
            padding: 0 22px 18px;
            font-size: 0.92rem;
            color: var(--text-muted);
            line-height: 1.7;
            display: none;
        }
        .faq-answer.show {
            display: block;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--bg-dark2) 0%, #1a1f35 100%);
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
            text-align: center;
            padding: 60px 0;
        }
        .cta-section h2 {
            font-size: 2rem;
            font-weight: 800;
            margin-bottom: 12px;
        }
        .cta-section p {
            font-size: 1.05rem;
            color: var(--text-muted);
            max-width: 600px;
            margin: 0 auto 28px;
        }
        .btn-cta {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 40px;
            border-radius: 50px;
            font-weight: 700;
            font-size: 1.05rem;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #0a0d1a;
            border: none;
            transition: var(--transition);
            text-decoration: none;
            box-shadow: 0 4px 30px var(--primary-glow);
        }
        .btn-cta:hover {
            transform: translateY(-3px);
            box-shadow: 0 8px 40px var(--primary-glow);
            color: #0a0d1a;
        }
        .btn-cta i {
            font-size: 1.1rem;
        }
        .btn-outline-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.95rem;
            color: var(--primary);
            border: 1px solid var(--primary);
            background: transparent;
            transition: var(--transition);
            text-decoration: none;
        }
        .btn-outline-cta:hover {
            background: var(--primary);
            color: #0a0d1a;
            box-shadow: 0 0 20px var(--primary-glow);
        }

        @media (max-width: 768px) {
            .cta-section h2 {
                font-size: 1.5rem;
            }
            .btn-cta {
                padding: 12px 30px;
                font-size: 0.95rem;
            }
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--bg-dark2);
            border-top: 1px solid var(--border-color);
            padding: 50px 0 30px;
        }
        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.4rem;
            font-weight: 800;
            color: var(--text-light);
            margin-bottom: 12px;
        }
        .footer-brand i {
            color: var(--primary);
            filter: drop-shadow(0 0 8px var(--primary-glow));
        }
        .footer-desc {
            font-size: 0.9rem;
            color: var(--text-dim);
            line-height: 1.7;
            margin-bottom: 0;
        }
        .footer-heading {
            font-size: 1rem;
            font-weight: 700;
            color: var(--text-light);
            margin-bottom: 16px;
            position: relative;
            padding-bottom: 8px;
        }
        .footer-heading::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 30px;
            height: 2px;
            background: var(--primary);
        }
        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-links li {
            margin-bottom: 10px;
        }
        .footer-links a {
            color: var(--text-dim);
            font-size: 0.9rem;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .footer-links a:hover {
            color: var(--primary);
            transform: translateX(4px);
        }
        .footer-bottom {
            margin-top: 36px;
            padding-top: 20px;
            border-top: 1px solid rgba(245, 197, 24, 0.08);
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            font-size: 0.85rem;
            color: var(--text-dim);
        }
        .footer-bottom a {
            color: var(--text-muted);
        }
        .footer-bottom a:hover {
            color: var(--primary);
        }

        @media (max-width: 768px) {
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .site-footer {
                padding: 36px 0 24px;
            }
        }

        /* ===== 加载更多 ===== */
        .load-more-wrap {
            text-align: center;
            margin-top: 36px;
        }
        .btn-load {
            padding: 12px 36px;
            border-radius: 50px;
            font-weight: 600;
            background: var(--bg-card);
            color: var(--text-muted);
            border: 1px solid var(--border-color);
            transition: var(--transition);
        }
        .btn-load:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: rgba(245, 197, 24, 0.05);
        }

        /* ===== 工具类 ===== */
        .text-primary-custom {
            color: var(--primary);
        }
        .bg-glass {
            background: rgba(22, 28, 46, 0.8);
            backdrop-filter: blur(12px);
        }
        .gap-2 {
            gap: 8px;
        }
        .gap-3 {
            gap: 16px;
        }
        .mb-0 {
            margin-bottom: 0;
        }
        .mt-2 {
            margin-top: 8px;
        }
        .mt-3 {
            margin-top: 16px;
        }
        .mb-2 {
            margin-bottom: 8px;
        }
        .mb-3 {
            margin-bottom: 16px;
        }
        .mb-4 {
            margin-bottom: 24px;
        }
        .text-center {
            text-align: center;
        }
        .fw-700 {
            font-weight: 700;
        }

        /* ===== Bootstrap 覆盖 ===== */
        .row.g-4>[class*="col-"] {
            padding-top: 0;
        }

/* roulang page: category2 */
/* ===== Design Variables ===== */
        :root {
            --primary: #f0c040;
            --primary-rgb: 240, 192, 64;
            --primary-dark: #d9a82e;
            --primary-glow: rgba(240, 192, 64, 0.35);
            --secondary: #6f42c1;
            --secondary-rgb: 111, 66, 193;
            --accent: #ff6b35;
            --accent-rgb: 255, 107, 53;
            --bg-dark: #0f0e17;
            --bg-dark-2: #1a1930;
            --bg-card: #1e1d35;
            --bg-card-hover: #27264a;
            --bg-section: #13122a;
            --surface: #1e1d35;
            --text-primary: #f5f0e8;
            --text-secondary: #c8c0b8;
            --text-muted: #8a8580;
            --border-color: rgba(240, 192, 64, 0.18);
            --border-glow: rgba(240, 192, 64, 0.25);
            --radius: 16px;
            --radius-sm: 10px;
            --radius-lg: 24px;
            --shadow-card: 0 12px 40px rgba(0, 0, 0, 0.45), 0 0 0 1px rgba(240, 192, 64, 0.06);
            --shadow-card-hover: 0 20px 60px rgba(0, 0, 0, 0.55), 0 0 0 1px rgba(240, 192, 64, 0.15);
            --shadow-glow: 0 0 30px rgba(240, 192, 64, 0.12);
            --transition: 0.35s cubic-bezier(.4, 0, .2, 1);
            --font-base: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
            --font-display: 'Inter', 'PingFang SC', 'Microsoft YaHei', sans-serif;
            --nav-height: 70px;
        }

        /* ===== Base Reset ===== */
        *,
        *::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-base);
            font-size: 1rem;
            line-height: 1.7;
            background: var(--bg-dark);
            color: var(--text-primary);
            overflow-x: hidden;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--primary-dark);
        }
        a:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 4px;
            border-radius: 4px;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-family: var(--font-display);
            font-weight: 700;
            line-height: 1.25;
            color: var(--text-primary);
        }
        ul,
        ol {
            list-style: none;
            padding: 0;
        }
        ::selection {
            background: var(--primary);
            color: #0f0e17;
        }
        ::-webkit-scrollbar {
            width: 8px;
        }
        ::-webkit-scrollbar-track {
            background: var(--bg-dark);
        }
        ::-webkit-scrollbar-thumb {
            background: var(--primary);
            border-radius: 10px;
        }

        /* ===== Container ===== */
        .container {
            max-width: 1200px;
            padding-left: 20px;
            padding-right: 20px;
            margin-inline: auto;
        }

        /* ===== Header / Nav ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1050;
            background: rgba(15, 14, 23, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border-color);
            box-shadow: 0 4px 30px rgba(0, 0, 0, 0.5);
            height: var(--nav-height);
            display: flex;
            align-items: center;
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--text-primary);
            font-family: var(--font-display);
            letter-spacing: -0.5px;
            transition: opacity var(--transition);
            text-decoration: none !important;
        }
        .logo i {
            color: var(--primary);
            font-size: 1.7rem;
            filter: drop-shadow(0 0 8px var(--primary-glow));
        }
        .logo:hover {
            opacity: 0.85;
        }
        .logo .logo-highlight {
            color: var(--primary);
            text-shadow: 0 0 12px var(--primary-glow);
        }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            color: var(--text-primary);
            font-size: 1.6rem;
            cursor: pointer;
            padding: 6px 10px;
            border-radius: var(--radius-sm);
            transition: background var(--transition);
        }
        .nav-toggle:hover {
            background: rgba(240, 192, 64, 0.12);
        }
        .nav-toggle:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }
        .nav-collapse {
            display: flex;
            align-items: center;
        }
        .nav-list {
            display: flex;
            align-items: center;
            gap: 6px;
            margin: 0;
            padding: 0;
        }
        .nav-item {
            margin: 0;
        }
        .nav-link {
            display: flex;
            align-items: center;
            gap: 6px;
            padding: 8px 18px;
            border-radius: var(--radius-sm);
            color: var(--text-secondary);
            font-weight: 500;
            font-size: 0.95rem;
            transition: all var(--transition);
            text-decoration: none !important;
            position: relative;
            letter-spacing: 0.3px;
        }
        .nav-link i {
            font-size: 0.9rem;
            opacity: 0.7;
            transition: opacity var(--transition);
        }
        .nav-link:hover {
            color: var(--text-primary);
            background: rgba(240, 192, 64, 0.08);
        }
        .nav-link:hover i {
            opacity: 1;
        }
        .nav-link.active {
            color: var(--primary);
            background: rgba(240, 192, 64, 0.12);
            box-shadow: inset 0 -2px 0 var(--primary), 0 0 20px rgba(240, 192, 64, 0.06);
        }
        .nav-link.active i {
            opacity: 1;
            color: var(--primary);
        }
        .nav-link.nav-cta {
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #0f0e17 !important;
            font-weight: 700;
            padding: 8px 24px;
            border-radius: var(--radius-sm);
            box-shadow: 0 0 20px rgba(240, 192, 64, 0.25);
            transition: all var(--transition);
        }
        .nav-link.nav-cta i {
            color: #0f0e17 !important;
            opacity: 1;
        }
        .nav-link.nav-cta:hover {
            transform: translateY(-2px) scale(1.03);
            box-shadow: 0 0 35px rgba(240, 192, 64, 0.4);
            background: linear-gradient(135deg, #f5cd5c, var(--primary-dark));
        }

        /* ===== Hero ===== */
        .hero-section {
            padding: 80px 0 70px;
            position: relative;
            background: linear-gradient(160deg, var(--bg-dark) 0%, var(--bg-dark-2) 60%, #15132e 100%);
            overflow: hidden;
        }
        .hero-section::before {
            content: '';
            position: absolute;
            top: -30%;
            right: -20%;
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(240, 192, 64, 0.08) 0%, transparent 70%);
            pointer-events: none;
        }
        .hero-section::after {
            content: '';
            position: absolute;
            bottom: -20%;
            left: -10%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(111, 66, 193, 0.06) 0%, transparent 60%);
            pointer-events: none;
        }
        .hero-content {
            position: relative;
            z-index: 2;
            text-align: center;
            max-width: 820px;
            margin: 0 auto;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(240, 192, 64, 0.12);
            border: 1px solid rgba(240, 192, 64, 0.25);
            padding: 6px 20px;
            border-radius: 40px;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--primary);
            margin-bottom: 24px;
            backdrop-filter: blur(4px);
        }
        .hero-badge i {
            font-size: 0.75rem;
            animation: pulse-dot 1.6s infinite;
        }
        @keyframes pulse-dot {
            0%,
            100% {
                opacity: 1;
                transform: scale(1);
            }
            50% {
                opacity: 0.5;
                transform: scale(0.85);
            }
        }
        .hero-title {
            font-size: 3rem;
            font-weight: 800;
            letter-spacing: -1px;
            line-height: 1.15;
            margin-bottom: 20px;
            background: linear-gradient(135deg, #fff 0%, var(--primary) 80%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .hero-sub {
            font-size: 1.15rem;
            color: var(--text-secondary);
            max-width: 680px;
            margin: 0 auto 32px;
            line-height: 1.8;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            justify-content: center;
        }
        .btn-primary-custom {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #0f0e17 !important;
            font-weight: 700;
            padding: 14px 36px;
            border-radius: var(--radius-sm);
            font-size: 1.05rem;
            border: none;
            box-shadow: 0 0 30px rgba(240, 192, 64, 0.25);
            transition: all var(--transition);
            text-decoration: none !important;
            cursor: pointer;
        }
        .btn-primary-custom:hover {
            transform: translateY(-3px) scale(1.03);
            box-shadow: 0 0 50px rgba(240, 192, 64, 0.4);
            background: linear-gradient(135deg, #f5cd5c, var(--primary-dark));
            color: #0f0e17 !important;
        }
        .btn-primary-custom:focus-visible {
            outline: 2px solid #fff;
            outline-offset: 4px;
        }
        .btn-outline-custom {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: transparent;
            color: var(--text-primary) !important;
            font-weight: 600;
            padding: 14px 36px;
            border-radius: var(--radius-sm);
            font-size: 1.05rem;
            border: 1px solid var(--border-color);
            transition: all var(--transition);
            text-decoration: none !important;
            cursor: pointer;
        }
        .btn-outline-custom:hover {
            border-color: var(--primary);
            background: rgba(240, 192, 64, 0.08);
            color: var(--primary) !important;
            transform: translateY(-2px);
        }
        .btn-outline-custom:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 4px;
        }

        /* ===== Section Common ===== */
        .section-padding {
            padding: 80px 0;
        }
        .section-title {
            font-size: 2.2rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            margin-bottom: 12px;
            text-align: center;
        }
        .section-title .highlight {
            color: var(--primary);
            text-shadow: 0 0 20px var(--primary-glow);
        }
        .section-desc {
            text-align: center;
            color: var(--text-secondary);
            font-size: 1.05rem;
            max-width: 640px;
            margin: 0 auto 48px;
            line-height: 1.8;
        }
        .section-divider {
            width: 60px;
            height: 4px;
            background: linear-gradient(90deg, var(--primary), var(--secondary));
            border-radius: 4px;
            margin: 0 auto 16px;
            box-shadow: 0 0 20px rgba(240, 192, 64, 0.2);
        }

        /* ===== Card Grid ===== */
        .card-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
            gap: 28px;
        }
        .tutorial-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            border: 1px solid var(--border-color);
            padding: 32px 28px;
            transition: all var(--transition);
            box-shadow: var(--shadow-card);
            position: relative;
            overflow: hidden;
        }
        .tutorial-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 3px;
            background: linear-gradient(90deg, var(--primary), var(--secondary));
            opacity: 0;
            transition: opacity var(--transition);
        }
        .tutorial-card:hover {
            transform: translateY(-6px);
            border-color: var(--border-glow);
            box-shadow: var(--shadow-card-hover);
            background: var(--bg-card-hover);
        }
        .tutorial-card:hover::before {
            opacity: 1;
        }
        .tutorial-card .card-number {
            font-size: 2.6rem;
            font-weight: 900;
            color: rgba(240, 192, 64, 0.12);
            line-height: 1;
            margin-bottom: 8px;
            font-family: var(--font-display);
        }
        .tutorial-card .card-icon {
            font-size: 2rem;
            color: var(--primary);
            margin-bottom: 16px;
            display: inline-block;
            filter: drop-shadow(0 0 12px var(--primary-glow));
        }
        .tutorial-card h3 {
            font-size: 1.3rem;
            font-weight: 700;
            margin-bottom: 12px;
        }
        .tutorial-card p {
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.7;
            margin-bottom: 16px;
        }
        .tutorial-card .step-list {
            padding: 0;
            margin: 0 0 16px;
        }
        .tutorial-card .step-list li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            padding: 6px 0;
            color: var(--text-secondary);
            font-size: 0.92rem;
            border-bottom: 1px solid rgba(255, 255, 255, 0.04);
        }
        .tutorial-card .step-list li:last-child {
            border-bottom: none;
        }
        .tutorial-card .step-list li i {
            color: var(--primary);
            font-size: 0.75rem;
            margin-top: 6px;
            flex-shrink: 0;
        }
        .tutorial-card .card-tag {
            display: inline-block;
            padding: 2px 14px;
            border-radius: 20px;
            font-size: 0.75rem;
            font-weight: 600;
            background: rgba(240, 192, 64, 0.12);
            color: var(--primary);
            border: 1px solid rgba(240, 192, 64, 0.15);
        }

        /* ===== Stats / Data Block ===== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
            gap: 24px;
            margin-top: 20px;
        }
        .stat-item {
            text-align: center;
            background: var(--bg-card);
            border-radius: var(--radius);
            padding: 28px 16px;
            border: 1px solid var(--border-color);
            transition: all var(--transition);
        }
        .stat-item:hover {
            border-color: var(--border-glow);
            transform: translateY(-4px);
            box-shadow: var(--shadow-card-hover);
        }
        .stat-number {
            font-size: 2.4rem;
            font-weight: 900;
            color: var(--primary);
            font-family: var(--font-display);
            text-shadow: 0 0 20px var(--primary-glow);
            line-height: 1.2;
        }
        .stat-label {
            color: var(--text-secondary);
            font-size: 0.9rem;
            font-weight: 500;
            margin-top: 6px;
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 14px;
        }
        .faq-item {
            background: var(--bg-card);
            border-radius: var(--radius-sm);
            border: 1px solid var(--border-color);
            overflow: hidden;
            transition: all var(--transition);
        }
        .faq-item:hover {
            border-color: var(--border-glow);
        }
        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 24px;
            background: none;
            border: none;
            color: var(--text-primary);
            font-weight: 600;
            font-size: 1rem;
            text-align: left;
            cursor: pointer;
            transition: background var(--transition);
            gap: 12px;
        }
        .faq-question:hover {
            background: rgba(240, 192, 64, 0.04);
        }
        .faq-question:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: -2px;
        }
        .faq-question i {
            color: var(--primary);
            font-size: 0.85rem;
            transition: transform 0.3s ease;
            flex-shrink: 0;
        }
        .faq-question[aria-expanded="true"] i {
            transform: rotate(180deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
            padding: 0 24px;
        }
        .faq-answer.open {
            max-height: 300px;
            padding: 0 24px 20px;
        }
        .faq-answer p {
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.7;
            margin: 0;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(145deg, var(--bg-dark-2), #1c1a3a);
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
            text-align: center;
            padding: 70px 0;
        }
        .cta-title {
            font-size: 2rem;
            font-weight: 800;
            margin-bottom: 16px;
        }
        .cta-desc {
            color: var(--text-secondary);
            font-size: 1.05rem;
            max-width: 560px;
            margin: 0 auto 32px;
            line-height: 1.8;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-dark-2);
            border-top: 1px solid var(--border-color);
            padding: 60px 0 30px;
        }
        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.4rem;
            font-weight: 800;
            color: var(--text-primary);
            font-family: var(--font-display);
            margin-bottom: 14px;
        }
        .footer-brand i {
            color: var(--primary);
            font-size: 1.5rem;
            filter: drop-shadow(0 0 8px var(--primary-glow));
        }
        .footer-desc {
            color: var(--text-muted);
            font-size: 0.9rem;
            line-height: 1.7;
            max-width: 320px;
        }
        .footer-heading {
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 16px;
            color: var(--text-primary);
            letter-spacing: 0.5px;
        }
        .footer-links {
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .footer-links li a {
            color: var(--text-muted);
            font-size: 0.9rem;
            transition: all var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 8px;
            text-decoration: none !important;
        }
        .footer-links li a:hover {
            color: var(--primary);
            transform: translateX(4px);
        }
        .footer-links li a i {
            color: var(--primary);
            opacity: 0.6;
        }
        .footer-bottom {
            margin-top: 40px;
            padding-top: 24px;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            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);
            text-decoration: none !important;
        }
        .footer-bottom a:hover {
            color: var(--primary);
        }
        .footer-bottom i {
            color: var(--primary);
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .hero-title {
                font-size: 2.5rem;
            }
            .section-title {
                font-size: 1.9rem;
            }
            .card-grid {
                grid-template-columns: repeat(auto-fill, minmax(290px, 1fr));
                gap: 22px;
            }
        }

        @media (max-width: 768px) {
            .site-header {
                height: 62px;
            }
            .nav-toggle {
                display: block;
            }
            .nav-collapse {
                position: fixed;
                top: 62px;
                left: 0;
                width: 100%;
                background: rgba(15, 14, 23, 0.97);
                backdrop-filter: blur(20px);
                -webkit-backdrop-filter: blur(20px);
                padding: 16px 20px 24px;
                flex-direction: column;
                transform: translateY(-110%);
                opacity: 0;
                pointer-events: none;
                transition: all 0.4s ease;
                border-bottom: 1px solid var(--border-color);
                box-shadow: 0 20px 50px rgba(0, 0, 0, 0.7);
                z-index: 1040;
            }
            .nav-collapse.open {
                transform: translateY(0);
                opacity: 1;
                pointer-events: auto;
            }
            .nav-list {
                flex-direction: column;
                gap: 4px;
                width: 100%;
            }
            .nav-link {
                width: 100%;
                padding: 12px 16px;
                justify-content: flex-start;
                border-radius: var(--radius-sm);
            }
            .nav-link.nav-cta {
                margin-top: 8px;
                justify-content: center;
            }
            .logo {
                font-size: 1.25rem;
            }
            .logo i {
                font-size: 1.3rem;
            }
            .hero-section {
                padding: 50px 0 50px;
            }
            .hero-title {
                font-size: 2rem;
            }
            .hero-sub {
                font-size: 1rem;
            }
            .hero-actions {
                flex-direction: column;
                align-items: center;
            }
            .btn-primary-custom,
            .btn-outline-custom {
                width: 100%;
                max-width: 300px;
                justify-content: center;
            }
            .section-padding {
                padding: 50px 0;
            }
            .section-title {
                font-size: 1.7rem;
            }
            .section-desc {
                font-size: 0.95rem;
                margin-bottom: 32px;
            }
            .card-grid {
                grid-template-columns: 1fr;
                gap: 18px;
            }
            .tutorial-card {
                padding: 24px 20px;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 14px;
            }
            .stat-number {
                font-size: 1.8rem;
            }
            .faq-question {
                padding: 14px 18px;
                font-size: 0.95rem;
            }
            .faq-answer.open {
                padding: 0 18px 16px;
            }
            .cta-section {
                padding: 50px 0;
            }
            .cta-title {
                font-size: 1.6rem;
            }
            .site-footer {
                padding: 40px 0 20px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

        @media (max-width: 520px) {
            .hero-title {
                font-size: 1.6rem;
            }
            .hero-badge {
                font-size: 0.75rem;
                padding: 4px 14px;
            }
            .section-title {
                font-size: 1.4rem;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
            .stat-item {
                padding: 18px 12px;
            }
            .stat-number {
                font-size: 1.5rem;
            }
            .card-grid {
                grid-template-columns: 1fr;
            }
            .tutorial-card h3 {
                font-size: 1.1rem;
            }
            .footer-bottom {
                font-size: 0.78rem;
            }
        }

        /* ===== Utility ===== */
        .text-glow {
            text-shadow: 0 0 20px var(--primary-glow);
        }
        .mt-2 {
            margin-top: 12px;
        }
        .mb-2 {
            margin-bottom: 12px;
        }
        .gap-2 {
            gap: 12px;
        }
        .flex-center {
            display: flex;
            align-items: center;
            justify-content: center;
        }