/* roulang page: index */
/* ===== Design Variables ===== */
        :root {
            --primary: #1a2a4a;
            --primary-light: #2c4a7a;
            --primary-dark: #0f1a30;
            --accent: #d4a84b;
            --accent-light: #e8c97a;
            --accent-dark: #b8922e;
            --bg-dark: #0b1320;
            --bg-card: #111d2e;
            --bg-section: #0f1a2a;
            --bg-light: #f4f6fa;
            --text-white: #f0f2f5;
            --text-light: #c8cdd6;
            --text-muted: #8892a0;
            --text-body: #2c3e50;
            --text-dark: #1a2a3a;
            --border-color: rgba(212, 168, 75, 0.2);
            --border-light: rgba(255, 255, 255, 0.08);
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-sm: 0 2px 8px rgba(0,0,0,0.3);
            --shadow-md: 0 8px 30px rgba(0,0,0,0.4);
            --shadow-lg: 0 20px 60px rgba(0,0,0,0.5);
            --shadow-glow: 0 0 40px rgba(212, 168, 75, 0.15);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, 'Noto Sans SC', sans-serif;
            --max-width: 1240px;
            --header-height: 72px;
        }

        /* ===== Reset & Base ===== */
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; font-size: 16px; -webkit-font-smoothing: antialiased; }
        body {
            font-family: var(--font-sans);
            line-height: 1.7;
            color: var(--text-body);
            background: var(--bg-dark);
            overflow-x: hidden;
        }
        img { max-width: 100%; height: auto; display: block; }
        a { text-decoration: none; color: inherit; transition: var(--transition); }
        button, input, textarea { font-family: inherit; font-size: inherit; border: none; outline: none; transition: var(--transition); }
        ul, ol { list-style: none; }
        h1, h2, h3, h4, h5, h6 { line-height: 1.25; font-weight: 700; color: var(--text-white); }
        h1 { font-size: clamp(2.2rem, 5vw, 3.8rem); letter-spacing: -0.02em; }
        h2 { font-size: clamp(1.6rem, 3.5vw, 2.6rem); letter-spacing: -0.01em; }
        h3 { font-size: clamp(1.2rem, 2.2vw, 1.6rem); }
        p { color: var(--text-light); margin-bottom: 0.6rem; }
        .container {
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }
        @media (max-width: 640px) {
            .container { padding: 0 16px; }
        }

        /* ===== Scrollbar ===== */
        ::-webkit-scrollbar { width: 6px; background: var(--bg-dark); }
        ::-webkit-scrollbar-thumb { background: var(--accent); border-radius: 3px; }

        /* ===== Header / Navigation ===== */
        .site-header {
            position: fixed;
            top: 0; left: 0; right: 0;
            z-index: 1000;
            height: var(--header-height);
            background: rgba(11, 19, 32, 0.85);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-light);
            transition: var(--transition);
        }
        .site-header.scrolled { background: rgba(11, 19, 32, 0.96); box-shadow: var(--shadow-md); }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.25rem;
            font-weight: 800;
            color: var(--text-white);
            letter-spacing: -0.01em;
        }
        .logo-icon {
            width: 36px; height: 36px;
            background: linear-gradient(135deg, var(--accent), var(--accent-dark));
            border-radius: var(--radius-sm);
            display: flex; align-items: center; justify-content: center;
            font-size: 1.1rem; color: var(--primary-dark); font-weight: 900;
        }
        .logo span { background: linear-gradient(90deg, var(--text-white), var(--accent-light)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
        .nav-main { display: flex; align-items: center; gap: 6px; }
        .nav-main a {
            padding: 8px 18px;
            border-radius: var(--radius-sm);
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-light);
            position: relative;
            transition: var(--transition);
        }
        .nav-main a:hover { color: var(--text-white); background: rgba(255,255,255,0.06); }
        .nav-main a.active {
            color: var(--accent);
            background: rgba(212, 168, 75, 0.12);
        }
        .nav-main a.active::after {
            content: '';
            position: absolute;
            bottom: 2px; left: 50%; transform: translateX(-50%);
            width: 20px; height: 3px;
            background: var(--accent);
            border-radius: 2px;
        }
        .header-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .search-toggle {
            width: 40px; height: 40px;
            border-radius: 50%;
            background: rgba(255,255,255,0.06);
            color: var(--text-light);
            display: flex; align-items: center; justify-content: center;
            cursor: pointer;
            font-size: 1.1rem;
            border: 1px solid var(--border-light);
            transition: var(--transition);
        }
        .search-toggle:hover { background: rgba(212,168,75,0.15); color: var(--accent); border-color: var(--accent); }
        .btn-cta {
            padding: 10px 28px;
            border-radius: var(--radius-md);
            background: linear-gradient(135deg, var(--accent), var(--accent-dark));
            color: var(--primary-dark);
            font-weight: 700;
            font-size: 0.9rem;
            cursor: pointer;
            border: none;
            box-shadow: 0 4px 20px rgba(212, 168, 75, 0.3);
            transition: var(--transition);
            letter-spacing: 0.01em;
        }
        .btn-cta:hover { transform: translateY(-2px); box-shadow: 0 8px 30px rgba(212, 168, 75, 0.4); }
        .btn-cta:active { transform: translateY(0); }
        .btn-cta-outline {
            background: transparent;
            border: 1px solid var(--accent);
            color: var(--accent);
            box-shadow: none;
        }
        .btn-cta-outline:hover { background: rgba(212,168,75,0.1); box-shadow: 0 4px 20px rgba(212,168,75,0.15); }

        /* Mobile Menu Toggle */
        .mobile-toggle {
            display: none;
            width: 40px; height: 40px;
            background: transparent;
            color: var(--text-white);
            font-size: 1.5rem;
            cursor: pointer;
            align-items: center; justify-content: center;
            border-radius: var(--radius-sm);
            border: 1px solid var(--border-light);
        }
        .mobile-toggle:hover { background: rgba(255,255,255,0.06); }

        @media (max-width: 768px) {
            .nav-main { display: none; }
            .mobile-toggle { display: flex; }
            .header-actions .btn-cta { display: none; }
            .nav-main.open {
                display: flex;
                flex-direction: column;
                position: absolute;
                top: var(--header-height); left: 0; right: 0;
                background: rgba(11,19,32,0.98);
                backdrop-filter: blur(20px);
                padding: 16px 24px;
                border-bottom: 1px solid var(--border-light);
                gap: 4px;
            }
            .nav-main.open a { padding: 12px 16px; width: 100%; border-radius: var(--radius-sm); }
            .nav-main.open a.active::after { display: none; }
            .nav-main.open a.active { background: rgba(212,168,75,0.12); }
        }

        /* ===== Hero Section ===== */
        .hero {
            position: relative;
            min-height: 100vh;
            display: flex;
            align-items: center;
            padding: calc(var(--header-height) + 40px) 0 80px;
            background: var(--bg-dark);
            overflow: hidden;
        }
        .hero-bg {
            position: absolute;
            inset: 0;
            z-index: 0;
        }
        .hero-bg img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            opacity: 0.4;
        }
        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(11,19,32,0.92) 0%, rgba(11,19,32,0.6) 50%, rgba(11,19,32,0.88) 100%);
            z-index: 1;
        }
        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 780px;
        }
        .hero-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 18px;
            border-radius: 50px;
            background: rgba(212,168,75,0.12);
            border: 1px solid rgba(212,168,75,0.25);
            color: var(--accent);
            font-size: 0.85rem;
            font-weight: 500;
            margin-bottom: 24px;
            letter-spacing: 0.02em;
        }
        .hero-tag i { font-size: 0.75rem; }
        .hero h1 { margin-bottom: 20px; }
        .hero h1 .highlight { color: var(--accent); }
        .hero p {
            font-size: clamp(1rem, 1.6vw, 1.2rem);
            color: var(--text-light);
            max-width: 600px;
            margin-bottom: 36px;
            line-height: 1.8;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            align-items: center;
        }
        .hero-actions .btn-cta { padding: 14px 40px; font-size: 1.05rem; }
        .hero-stat {
            display: flex;
            align-items: center;
            gap: 12px;
            color: var(--text-light);
            font-size: 0.9rem;
        }
        .hero-stat strong { color: var(--text-white); font-size: 1.2rem; }
        .hero-stat-dot { width: 6px; height: 6px; border-radius: 50%; background: #4ade80; display: inline-block; animation: pulse-dot 2s infinite; }
        @keyframes pulse-dot { 0%,100% { opacity: 1; } 50% { opacity: 0.4; } }

        .hero-bottom-curve {
            position: absolute;
            bottom: -2px; left: 0; right: 0;
            z-index: 3;
            height: 80px;
            background: var(--bg-section);
            clip-path: ellipse(70% 100% at 50% 100%);
        }

        @media (max-width: 768px) {
            .hero { min-height: 90vh; padding-top: calc(var(--header-height) + 20px); }
            .hero-actions { flex-direction: column; align-items: flex-start; }
        }

        /* ===== Section Shared ===== */
        .section { padding: 80px 0; position: relative; }
        .section-dark { background: var(--bg-section); }
        .section-darker { background: var(--bg-dark); }
        .section-card { background: var(--bg-card); }
        .section-header {
            text-align: center;
            max-width: 680px;
            margin: 0 auto 56px;
        }
        .section-header h2 { margin-bottom: 12px; }
        .section-header p { color: var(--text-muted); font-size: 1.05rem; }
        .section-badge {
            display: inline-block;
            padding: 4px 16px;
            border-radius: 50px;
            font-size: 0.8rem;
            font-weight: 600;
            color: var(--accent);
            background: rgba(212,168,75,0.1);
            border: 1px solid rgba(212,168,75,0.2);
            margin-bottom: 16px;
            letter-spacing: 0.04em;
            text-transform: uppercase;
        }

        @media (max-width: 640px) {
            .section { padding: 56px 0; }
            .section-header { margin-bottom: 36px; }
        }

        /* ===== Features / Core ===== */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
            gap: 24px;
        }
        .feature-card {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            padding: 32px 28px;
            border: 1px solid var(--border-light);
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }
        .feature-card::before {
            content: '';
            position: absolute;
            top: 0; left: 0; right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--accent), var(--accent-light));
            opacity: 0;
            transition: var(--transition);
        }
        .feature-card:hover { transform: translateY(-6px); border-color: rgba(212,168,75,0.3); box-shadow: var(--shadow-glow); }
        .feature-card:hover::before { opacity: 1; }
        .feature-icon {
            width: 54px; height: 54px;
            border-radius: var(--radius-md);
            background: linear-gradient(135deg, rgba(212,168,75,0.15), rgba(212,168,75,0.05));
            display: flex; align-items: center; justify-content: center;
            font-size: 1.5rem;
            color: var(--accent);
            margin-bottom: 20px;
            border: 1px solid rgba(212,168,75,0.15);
        }
        .feature-card h3 { margin-bottom: 10px; font-size: 1.15rem; }
        .feature-card p { color: var(--text-muted); font-size: 0.92rem; line-height: 1.7; }

        /* ===== Categories / Classify ===== */
        .categories-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 20px;
        }
        .category-card {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            background: var(--bg-card);
            border: 1px solid var(--border-light);
            transition: var(--transition);
            min-height: 200px;
            display: flex;
            flex-direction: column;
            justify-content: flex-end;
            padding: 24px;
        }
        .category-card .cat-bg {
            position: absolute;
            inset: 0;
            z-index: 0;
        }
        .category-card .cat-bg img {
            width: 100%; height: 100%;
            object-fit: cover;
            opacity: 0.3;
            transition: var(--transition);
        }
        .category-card:hover .cat-bg img { opacity: 0.5; transform: scale(1.05); }
        .category-card .cat-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(0deg, rgba(11,19,32,0.9) 0%, rgba(11,19,32,0.3) 100%);
            z-index: 1;
        }
        .category-card .cat-content {
            position: relative;
            z-index: 2;
        }
        .category-card .cat-tag {
            display: inline-block;
            padding: 2px 12px;
            border-radius: 50px;
            background: rgba(212,168,75,0.2);
            color: var(--accent);
            font-size: 0.75rem;
            font-weight: 600;
            margin-bottom: 10px;
            border: 1px solid rgba(212,168,75,0.2);
        }
        .category-card h3 { font-size: 1.2rem; margin-bottom: 6px; }
        .category-card p { color: var(--text-muted); font-size: 0.85rem; }
        .category-card .cat-arrow {
            position: absolute;
            top: 20px; right: 20px;
            z-index: 2;
            width: 36px; height: 36px;
            border-radius: 50%;
            background: rgba(212,168,75,0.15);
            border: 1px solid rgba(212,168,75,0.2);
            display: flex; align-items: center; justify-content: center;
            color: var(--accent);
            font-size: 1rem;
            transition: var(--transition);
        }
        .category-card:hover .cat-arrow { background: var(--accent); color: var(--primary-dark); }

        /* ===== Latest Posts / CMS List ===== */
        .posts-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 24px;
        }
        .post-card {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border-light);
            transition: var(--transition);
        }
        .post-card:hover { transform: translateY(-4px); border-color: rgba(212,168,75,0.25); box-shadow: var(--shadow-glow); }
        .post-card .post-img {
            width: 100%; height: 180px;
            overflow: hidden;
            position: relative;
        }
        .post-card .post-img img {
            width: 100%; height: 100%;
            object-fit: cover;
            transition: var(--transition);
        }
        .post-card:hover .post-img img { transform: scale(1.05); }
        .post-card .post-body { padding: 20px; }
        .post-card .post-cat {
            display: inline-block;
            padding: 2px 12px;
            border-radius: 50px;
            font-size: 0.75rem;
            font-weight: 600;
            background: rgba(212,168,75,0.12);
            color: var(--accent);
            margin-bottom: 10px;
            border: 1px solid rgba(212,168,75,0.15);
        }
        .post-card h3 { font-size: 1.05rem; margin-bottom: 8px; line-height: 1.4; }
        .post-card h3 a { color: var(--text-white); }
        .post-card h3 a:hover { color: var(--accent); }
        .post-card .post-excerpt {
            font-size: 0.87rem;
            color: var(--text-muted);
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .post-card .post-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-top: 14px;
            padding-top: 14px;
            border-top: 1px solid rgba(255,255,255,0.05);
            font-size: 0.8rem;
            color: var(--text-muted);
        }
        .post-card .post-meta .date { display: flex; align-items: center; gap: 6px; }
        .post-empty {
            grid-column: 1 / -1;
            text-align: center;
            padding: 60px 20px;
            color: var(--text-muted);
            font-size: 1rem;
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            border: 1px dashed var(--border-light);
        }
        .post-empty i { font-size: 2rem; margin-bottom: 12px; display: block; color: var(--accent); opacity: 0.4; }

        /* ===== Stats / Data ===== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
            gap: 20px;
        }
        .stat-card {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            padding: 32px 24px;
            text-align: center;
            border: 1px solid var(--border-light);
            transition: var(--transition);
        }
        .stat-card:hover { border-color: rgba(212,168,75,0.3); transform: translateY(-2px); }
        .stat-card .stat-num {
            font-size: 2.6rem;
            font-weight: 800;
            background: linear-gradient(135deg, var(--accent), var(--accent-light));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            line-height: 1.1;
        }
        .stat-card .stat-label { color: var(--text-muted); font-size: 0.9rem; margin-top: 8px; }

        /* ===== Steps / Flow ===== */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 20px;
            counter-reset: step;
        }
        .step-card {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            border: 1px solid var(--border-light);
            position: relative;
            transition: var(--transition);
        }
        .step-card:hover { border-color: rgba(212,168,75,0.25); transform: translateY(-2px); }
        .step-card::before {
            counter-increment: step;
            content: counter(step);
            position: absolute;
            top: 16px; right: 20px;
            font-size: 2.8rem;
            font-weight: 900;
            color: rgba(212,168,75,0.08);
            line-height: 1;
        }
        .step-card .step-icon {
            width: 48px; height: 48px;
            border-radius: 50%;
            background: linear-gradient(135deg, rgba(212,168,75,0.15), rgba(212,168,75,0.05));
            display: flex; align-items: center; justify-content: center;
            font-size: 1.3rem;
            color: var(--accent);
            margin-bottom: 16px;
            border: 1px solid rgba(212,168,75,0.15);
        }
        .step-card h3 { font-size: 1.05rem; margin-bottom: 6px; }
        .step-card p { color: var(--text-muted); font-size: 0.87rem; }

        /* ===== FAQ ===== */
        .faq-list { max-width: 780px; margin: 0 auto; display: flex; flex-direction: column; gap: 12px; }
        .faq-item {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover { border-color: rgba(212,168,75,0.2); }
        .faq-question {
            width: 100%;
            padding: 20px 24px;
            background: transparent;
            color: var(--text-white);
            font-size: 1rem;
            font-weight: 600;
            display: flex;
            align-items: center;
            justify-content: space-between;
            cursor: pointer;
            text-align: left;
            gap: 16px;
        }
        .faq-question .faq-icon {
            width: 28px; height: 28px;
            border-radius: 50%;
            background: rgba(212,168,75,0.1);
            display: flex; align-items: center; justify-content: center;
            color: var(--accent);
            flex-shrink: 0;
            transition: var(--transition);
            font-size: 0.8rem;
        }
        .faq-item.open .faq-question .faq-icon { transform: rotate(180deg); background: var(--accent); color: var(--primary-dark); }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
            padding: 0 24px;
            color: var(--text-muted);
            font-size: 0.92rem;
            line-height: 1.7;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 24px 20px;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--primary-dark), var(--primary));
            border-radius: var(--radius-xl);
            padding: 64px 48px;
            text-align: center;
            position: relative;
            overflow: hidden;
            border: 1px solid rgba(212,168,75,0.15);
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: -50%; left: -50%;
            width: 200%; height: 200%;
            background: radial-gradient(circle at 30% 40%, rgba(212,168,75,0.06) 0%, transparent 60%);
            pointer-events: none;
        }
        .cta-section h2 { margin-bottom: 12px; }
        .cta-section p { color: var(--text-light); max-width: 520px; margin: 0 auto 28px; font-size: 1.05rem; }
        .cta-section .btn-cta { padding: 14px 44px; font-size: 1.05rem; }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-dark);
            border-top: 1px solid var(--border-light);
            padding: 48px 0 32px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 32px;
        }
        .footer-brand .logo { margin-bottom: 12px; }
        .footer-brand p { color: var(--text-muted); font-size: 0.87rem; max-width: 300px; line-height: 1.7; }
        .footer-col h4 { font-size: 0.95rem; margin-bottom: 16px; color: var(--text-white); }
        .footer-col a {
            display: block;
            padding: 6px 0;
            color: var(--text-muted);
            font-size: 0.87rem;
            transition: var(--transition);
        }
        .footer-col a:hover { color: var(--accent); padding-left: 4px; }
        .footer-bottom {
            border-top: 1px solid var(--border-light);
            padding-top: 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            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(--accent); }

        @media (max-width: 768px) {
            .footer-grid { grid-template-columns: 1fr 1fr; }
        }
        @media (max-width: 520px) {
            .footer-grid { grid-template-columns: 1fr; }
            .footer-bottom { flex-direction: column; text-align: center; }
        }

        /* ===== Back to Top ===== */
        .back-top {
            position: fixed;
            bottom: 32px; right: 32px;
            width: 48px; height: 48px;
            border-radius: 50%;
            background: var(--accent);
            color: var(--primary-dark);
            display: flex; align-items: center; justify-content: center;
            font-size: 1.2rem;
            cursor: pointer;
            border: none;
            box-shadow: var(--shadow-md);
            opacity: 0;
            visibility: hidden;
            transform: translateY(20px);
            transition: var(--transition);
            z-index: 999;
        }
        .back-top.visible { opacity: 1; visibility: visible; transform: translateY(0); }
        .back-top:hover { transform: translateY(-4px); box-shadow: var(--shadow-glow); }

        /* ===== Responsive Utilities ===== */
        @media (max-width: 1024px) {
            .features-grid { grid-template-columns: repeat(2, 1fr); }
        }
        @media (max-width: 640px) {
            .features-grid { grid-template-columns: 1fr; }
            .categories-grid { grid-template-columns: 1fr; }
            .posts-grid { grid-template-columns: 1fr; }
            .stats-grid { grid-template-columns: repeat(2, 1fr); }
            .steps-grid { grid-template-columns: 1fr; }
            .cta-section { padding: 40px 24px; }
            .hero-actions .btn-cta { width: 100%; text-align: center; }
        }

        /* ===== Animations ===== */
        .fade-in { opacity: 0; transform: translateY(24px); transition: opacity 0.7s ease, transform 0.7s ease; }
        .fade-in.visible { opacity: 1; transform: translateY(0); }

/* roulang page: article */
/* ===== 设计变量 ===== */
:root {
    --primary: #d4a04a;
    --primary-dark: #b8872e;
    --primary-light: #f0d68a;
    --secondary: #1a1a2e;
    --secondary-light: #2d2d44;
    --accent: #e8c46a;
    --bg-dark: #0f0f1a;
    --bg-card: #16162a;
    --bg-section: #12122a;
    --bg-light: #f8f6f0;
    --text-light: #f5f0e8;
    --text-muted: #a09888;
    --text-body: #e0d8cc;
    --text-dark: #1a1a1a;
    --border-color: #2a2a44;
    --border-light: #e0d8cc;
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 28px;
    --shadow-sm: 0 2px 8px rgba(0,0,0,0.3);
    --shadow-md: 0 8px 30px rgba(0,0,0,0.4);
    --shadow-lg: 0 20px 60px rgba(0,0,0,0.5);
    --shadow-glow: 0 0 30px rgba(212,160,74,0.15);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --container: 1200px;
    --nav-height: 72px;
}

/* ===== Reset & Base ===== */
*, *::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-body);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--primary); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--primary-light); }
ul, ol { list-style: none; }
.container {
    max-width: var(--container);
    margin: 0 auto;
    padding: 0 24px;
}
/* ===== 导航 ===== */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(15, 15, 26, 0.92);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(212, 160, 74, 0.1);
    height: var(--nav-height);
    transition: var(--transition);
}
.site-header:hover { border-bottom-color: rgba(212, 160, 74, 0.25); }
.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: var(--nav-height);
    max-width: var(--container);
    margin: 0 auto;
    padding: 0 24px;
}
.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--text-light);
    letter-spacing: 0.5px;
}
.logo-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 38px;
    height: 38px;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    border-radius: var(--radius-sm);
    font-size: 1.2rem;
    font-weight: 800;
    color: var(--secondary);
}
.logo:hover { color: var(--primary); }
.nav-main {
    display: flex;
    align-items: center;
    gap: 6px;
}
.nav-main a {
    padding: 8px 18px;
    border-radius: var(--radius-sm);
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-muted);
    transition: var(--transition);
    position: relative;
}
.nav-main a:hover {
    color: var(--text-light);
    background: rgba(212, 160, 74, 0.08);
}
.nav-main a.active {
    color: var(--primary);
    background: rgba(212, 160, 74, 0.12);
}
.nav-main a.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 20px;
    height: 2px;
    background: var(--primary);
    border-radius: 2px;
}
.nav-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}
.search-box {
    display: flex;
    align-items: center;
    background: rgba(255,255,255,0.06);
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: 50px;
    padding: 0 16px;
    height: 40px;
    transition: var(--transition);
}
.search-box:focus-within {
    border-color: var(--primary);
    background: rgba(212,160,74,0.06);
    box-shadow: 0 0 20px rgba(212,160,74,0.08);
}
.search-box i { color: var(--text-muted); font-size: 0.9rem; }
.search-box input {
    background: none;
    border: none;
    outline: none;
    color: var(--text-light);
    font-size: 0.9rem;
    padding: 0 8px;
    width: 140px;
}
.search-box input::placeholder { color: var(--text-muted); }
.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 28px;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: var(--secondary);
    font-weight: 600;
    font-size: 0.95rem;
    border: none;
    border-radius: 50px;
    cursor: pointer;
    transition: var(--transition);
    box-shadow: 0 4px 15px rgba(212,160,74,0.25);
}
.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(212,160,74,0.35);
    color: var(--secondary);
}
.btn-primary:active { transform: translateY(0); }
.btn-secondary {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 28px;
    background: transparent;
    color: var(--primary);
    font-weight: 600;
    font-size: 0.95rem;
    border: 1px solid rgba(212,160,74,0.3);
    border-radius: 50px;
    cursor: pointer;
    transition: var(--transition);
}
.btn-secondary:hover {
    background: rgba(212,160,74,0.08);
    border-color: var(--primary);
    transform: translateY(-2px);
}
.mobile-toggle { display: none; background: none; border: none; color: var(--text-light); font-size: 1.5rem; cursor: pointer; padding: 8px; }
/* ===== 文章页 ===== */
.article-banner {
    margin-top: var(--nav-height);
    position: relative;
    min-height: 320px;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    background: linear-gradient(135deg, rgba(15,15,26,0.92), rgba(22,22,42,0.92)), url('/assets/images/backpic/back-1.png') center/cover no-repeat;
    border-bottom: 1px solid rgba(212,160,74,0.1);
    padding: 80px 24px 60px;
}
.article-banner-content { position: relative; z-index: 2; max-width: 800px; }
.article-badge {
    display: inline-block;
    padding: 6px 18px;
    background: rgba(212,160,74,0.15);
    border: 1px solid rgba(212,160,74,0.25);
    border-radius: 50px;
    font-size: 0.85rem;
    color: var(--primary);
    margin-bottom: 20px;
    letter-spacing: 0.5px;
}
.article-banner h1 {
    font-size: 2.6rem;
    font-weight: 800;
    color: var(--text-light);
    line-height: 1.25;
    margin-bottom: 16px;
    letter-spacing: 0.5px;
}
.article-meta {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 24px;
    flex-wrap: wrap;
    font-size: 0.9rem;
    color: var(--text-muted);
}
.article-meta i { margin-right: 6px; color: var(--primary); }
.article-meta span { display: inline-flex; align-items: center; }
/* ===== 正文区域 ===== */
.article-main {
    padding: 60px 0 80px;
    background: var(--bg-dark);
}
.article-layout {
    display: grid;
    grid-template-columns: 1fr 320px;
    gap: 48px;
    align-items: start;
}
.article-body {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 48px;
    box-shadow: var(--shadow-md);
}
.article-body h2 {
    font-size: 1.6rem;
    color: var(--text-light);
    margin: 36px 0 16px;
    padding-bottom: 12px;
    border-bottom: 1px solid rgba(212,160,74,0.1);
}
.article-body h3 {
    font-size: 1.25rem;
    color: var(--primary);
    margin: 28px 0 12px;
}
.article-body p {
    margin-bottom: 18px;
    font-size: 1.05rem;
    line-height: 1.8;
    color: var(--text-body);
}
.article-body ul, .article-body ol {
    margin: 16px 0 20px;
    padding-left: 24px;
}
.article-body li {
    margin-bottom: 10px;
    font-size: 1.05rem;
    line-height: 1.7;
    position: relative;
    padding-left: 8px;
}
.article-body ul li::before {
    content: '•';
    color: var(--primary);
    font-weight: 700;
    display: inline-block;
    width: 1.2em;
    margin-left: -1.2em;
}
.article-body ol { list-style: decimal; }
.article-body ol li { padding-left: 4px; }
.article-body blockquote {
    border-left: 4px solid var(--primary);
    background: rgba(212,160,74,0.06);
    padding: 16px 24px;
    margin: 24px 0;
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    font-style: italic;
    color: var(--text-muted);
}
.article-body a { color: var(--primary); text-decoration: underline; }
.article-body a:hover { color: var(--primary-light); }
.article-body img {
    border-radius: var(--radius-md);
    margin: 24px 0;
    width: 100%;
    box-shadow: var(--shadow-sm);
}
.article-body .wp-block-image, .article-body figure { margin: 24px 0; }
.article-body figcaption { text-align: center; font-size: 0.9rem; color: var(--text-muted); margin-top: 8px; }
.article-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 40px;
    padding-top: 24px;
    border-top: 1px solid var(--border-color);
}
.article-tags .tag {
    display: inline-block;
    padding: 6px 16px;
    background: rgba(212,160,74,0.08);
    border: 1px solid rgba(212,160,74,0.15);
    border-radius: 50px;
    font-size: 0.85rem;
    color: var(--primary);
    transition: var(--transition);
}
.article-tags .tag:hover { background: rgba(212,160,74,0.15); border-color: var(--primary); }
/* ===== 侧栏 ===== */
.article-sidebar {
    display: flex;
    flex-direction: column;
    gap: 32px;
}
.sidebar-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 28px;
    box-shadow: var(--shadow-sm);
}
.sidebar-card h3 {
    font-size: 1.1rem;
    color: var(--text-light);
    margin-bottom: 18px;
    padding-bottom: 12px;
    border-bottom: 1px solid rgba(212,160,74,0.1);
    display: flex;
    align-items: center;
    gap: 10px;
}
.sidebar-card h3 i { color: var(--primary); }
.sidebar-post-list li {
    padding: 12px 0;
    border-bottom: 1px solid rgba(255,255,255,0.04);
}
.sidebar-post-list li:last-child { border-bottom: none; }
.sidebar-post-list a {
    display: flex;
    gap: 12px;
    align-items: flex-start;
    color: var(--text-body);
    font-size: 0.95rem;
    line-height: 1.5;
}
.sidebar-post-list a:hover { color: var(--primary); }
.sidebar-post-list .post-thumb {
    width: 60px;
    height: 60px;
    border-radius: var(--radius-sm);
    object-fit: cover;
    flex-shrink: 0;
    background: var(--secondary-light);
}
.sidebar-post-list .post-info { flex: 1; }
.sidebar-post-list .post-info .post-date {
    font-size: 0.8rem;
    color: var(--text-muted);
    display: block;
    margin-top: 4px;
}
.sidebar-cta {
    background: linear-gradient(135deg, rgba(212,160,74,0.08), rgba(212,160,74,0.02));
    border: 1px solid rgba(212,160,74,0.15);
    text-align: center;
    padding: 32px 24px;
}
.sidebar-cta h4 { font-size: 1.2rem; color: var(--text-light); margin-bottom: 8px; }
.sidebar-cta p { font-size: 0.9rem; color: var(--text-muted); margin-bottom: 20px; }
/* ===== 导航链 ===== */
.article-nav {
    margin-top: 48px;
    display: flex;
    justify-content: space-between;
    gap: 24px;
    flex-wrap: wrap;
}
.article-nav a {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px 24px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-body);
    font-size: 0.95rem;
    transition: var(--transition);
    flex: 1;
    max-width: 48%;
}
.article-nav a:hover {
    border-color: var(--primary);
    background: rgba(212,160,74,0.04);
    color: var(--primary);
    transform: translateY(-2px);
}
.article-nav .nav-next { text-align: right; justify-content: flex-end; }
.article-nav .nav-prev i, .article-nav .nav-next i { color: var(--primary); font-size: 1.1rem; }
/* ===== 页脚 ===== */
.site-footer {
    background: var(--bg-card);
    border-top: 1px solid var(--border-color);
    padding: 60px 0 30px;
    margin-top: 0;
}
.footer-grid {
    display: grid;
    grid-template-columns: 1.8fr 1fr 1fr 1.2fr;
    gap: 40px;
    margin-bottom: 40px;
}
.footer-brand .logo { font-size: 1.2rem; margin-bottom: 16px; display: inline-flex; }
.footer-brand p { font-size: 0.9rem; color: var(--text-muted); line-height: 1.7; margin-top: 12px; }
.footer-col h4 { font-size: 1rem; color: var(--text-light); margin-bottom: 18px; font-weight: 600; }
.footer-col a {
    display: block;
    padding: 6px 0;
    font-size: 0.9rem;
    color: var(--text-muted);
    transition: var(--transition);
}
.footer-col a:hover { color: var(--primary); padding-left: 4px; }
.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 12px;
    padding-top: 28px;
    border-top: 1px solid var(--border-color);
    font-size: 0.85rem;
    color: var(--text-muted);
}
.footer-bottom a { color: var(--primary); }
.footer-bottom a:hover { color: var(--primary-light); }
/* ===== 响应式 ===== */
@media (max-width: 1024px) {
    .article-layout { grid-template-columns: 1fr; }
    .article-sidebar { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
    .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
    .nav-main { display: none; }
    .nav-main.open { display: flex; flex-direction: column; position: absolute; top: var(--nav-height); left: 0; right: 0; background: rgba(15,15,26,0.98); padding: 16px 24px; border-bottom: 1px solid var(--border-color); }
    .mobile-toggle { display: block; }
    .search-box input { width: 100px; }
    .search-box { padding: 0 12px; }
    .btn-primary span { display: none; }
    .article-banner h1 { font-size: 1.8rem; }
    .article-body { padding: 24px; }
    .article-body h2 { font-size: 1.3rem; }
    .article-body p { font-size: 1rem; }
    .article-sidebar { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; gap: 32px; }
    .footer-bottom { flex-direction: column; text-align: center; }
    .article-nav { flex-direction: column; }
    .article-nav a { max-width: 100%; }
    .article-meta { gap: 12px; font-size: 0.85rem; }
}
@media (max-width: 520px) {
    .header-inner { padding: 0 16px; }
    .container { padding: 0 16px; }
    .article-banner { min-height: 240px; padding: 60px 16px 40px; }
    .article-banner h1 { font-size: 1.4rem; }
    .article-body { padding: 16px; border-radius: var(--radius-md); }
    .article-body h2 { font-size: 1.15rem; }
    .article-body ul, .article-body ol { padding-left: 16px; }
    .sidebar-card { padding: 20px; }
    .btn-primary { padding: 8px 18px; font-size: 0.85rem; }
    .logo { font-size: 1.1rem; }
    .logo-icon { width: 32px; height: 32px; font-size: 1rem; }
}
/* ===== 文章不存在状态 ===== */
.not-found-article {
    text-align: center;
    padding: 80px 24px;
    min-height: 400px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}
.not-found-article i { font-size: 3rem; color: var(--primary); margin-bottom: 24px; opacity: 0.6; }
.not-found-article h2 { font-size: 1.8rem; color: var(--text-light); margin-bottom: 12px; }
.not-found-article p { color: var(--text-muted); margin-bottom: 24px; font-size: 1.05rem; }

/* roulang page: category1 */
/* ===== 设计变量 ===== */
        :root {
            --color-primary: #d4a54a;
            --color-primary-dark: #b8892e;
            --color-primary-light: #e8c56a;
            --color-secondary: #1a1f2e;
            --color-secondary-light: #252b3d;
            --color-bg: #0c0f17;
            --color-bg-card: #141a26;
            --color-bg-elevated: #1c2333;
            --color-text: #f0ede8;
            --color-text-secondary: #a8a4a0;
            --color-text-muted: #6b6762;
            --color-border: #2c3344;
            --color-border-light: #3d4558;
            --color-success: #4caf7d;
            --color-warning: #f0b34b;
            --color-danger: #e5595a;
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
            --shadow-md: 0 6px 24px rgba(0, 0, 0, 0.4);
            --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.5);
            --shadow-glow: 0 0 30px rgba(212, 165, 74, 0.15);
            --font-sans: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
            --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-base: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-slow: 0.55s cubic-bezier(0.4, 0, 0.2, 1);
            --max-width: 1220px;
            --header-height: 76px;
        }

        /* ===== Reset / Base ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--color-text);
            background: var(--color-bg);
            min-height: 100vh;
        }
        a {
            color: var(--color-primary);
            text-decoration: none;
            transition: color var(--transition-fast);
        }
        a:hover {
            color: var(--color-primary-light);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-md);
        }
        button,
        input,
        textarea,
        select {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
            border: none;
            outline: none;
            background: none;
            color: inherit;
        }
        button {
            cursor: pointer;
        }
        ul,
        ol {
            list-style: none;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-weight: 700;
            line-height: 1.3;
            color: var(--color-text);
        }
        h1 {
            font-size: clamp(2.2rem, 5vw, 3.6rem);
        }
        h2 {
            font-size: clamp(1.6rem, 3.5vw, 2.4rem);
            margin-bottom: 0.5em;
        }
        h3 {
            font-size: clamp(1.15rem, 2vw, 1.5rem);
        }
        h4 {
            font-size: 1.1rem;
        }
        p {
            margin-bottom: 1em;
            color: var(--color-text-secondary);
        }
        .container {
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }
        .section-padding {
            padding: 80px 0;
        }
        .section-title {
            text-align: center;
            margin-bottom: 16px;
        }
        .section-subtitle {
            text-align: center;
            color: var(--color-text-muted);
            max-width: 640px;
            margin: 0 auto 48px auto;
            font-size: 1.05rem;
        }
        .section-divider {
            width: 60px;
            height: 3px;
            background: var(--color-primary);
            border-radius: 4px;
            margin: 12px auto 28px auto;
        }

        /* ===== Header / Nav ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--header-height);
            background: rgba(12, 15, 23, 0.88);
            backdrop-filter: blur(16px) saturate(180%);
            -webkit-backdrop-filter: blur(16px) saturate(180%);
            border-bottom: 1px solid var(--color-border);
            transition: background var(--transition-base), border-color var(--transition-base);
        }
        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.35rem;
            font-weight: 800;
            color: var(--color-text);
            letter-spacing: -0.3px;
        }
        .logo:hover {
            color: var(--color-primary);
        }
        .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            background: var(--color-primary);
            color: var(--color-bg);
            border-radius: 10px;
            font-size: 1.2rem;
            font-weight: 900;
            flex-shrink: 0;
        }
        .nav-main {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .nav-main a {
            display: inline-flex;
            align-items: center;
            padding: 8px 18px;
            border-radius: var(--radius-sm);
            font-size: 0.92rem;
            font-weight: 500;
            color: var(--color-text-secondary);
            transition: background var(--transition-fast), color var(--transition-fast);
            position: relative;
        }
        .nav-main a:hover {
            background: rgba(212, 165, 74, 0.08);
            color: var(--color-primary-light);
        }
        .nav-main a.active {
            color: var(--color-primary);
            background: rgba(212, 165, 74, 0.12);
        }
        .nav-main a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 2px;
            background: var(--color-primary);
            border-radius: 2px;
        }
        .nav-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .search-toggle {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 10px;
            background: var(--color-bg-card);
            color: var(--color-text-secondary);
            border: 1px solid var(--color-border);
            transition: all var(--transition-fast);
            font-size: 1rem;
        }
        .search-toggle:hover {
            border-color: var(--color-primary);
            color: var(--color-primary);
            background: rgba(212, 165, 74, 0.06);
        }
        .btn-cta-nav {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 24px;
            border-radius: var(--radius-sm);
            background: var(--color-primary);
            color: var(--color-bg);
            font-weight: 600;
            font-size: 0.88rem;
            border: none;
            transition: all var(--transition-fast);
        }
        .btn-cta-nav:hover {
            background: var(--color-primary-dark);
            color: var(--color-bg);
            transform: translateY(-1px);
            box-shadow: var(--shadow-glow);
        }
        .btn-cta-nav i {
            font-size: 0.85rem;
        }
        .mobile-toggle {
            display: none;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            width: 44px;
            height: 44px;
            border-radius: 10px;
            background: var(--color-bg-card);
            border: 1px solid var(--color-border);
            cursor: pointer;
            gap: 5px;
            padding: 10px;
        }
        .mobile-toggle span {
            display: block;
            width: 20px;
            height: 2px;
            background: var(--color-text-secondary);
            border-radius: 2px;
            transition: all var(--transition-fast);
        }
        .mobile-toggle.active span:nth-child(1) {
            transform: rotate(45deg) translate(5px, 5px);
        }
        .mobile-toggle.active span:nth-child(2) {
            opacity: 0;
        }
        .mobile-toggle.active span:nth-child(3) {
            transform: rotate(-45deg) translate(5px, -5px);
        }

        /* ===== Hero (分类页 Banner) ===== */
        .category-hero {
            padding: 140px 0 80px 0;
            background: linear-gradient(165deg, #0c0f17 0%, #141a26 40%, #1a1f2e 100%);
            position: relative;
            overflow: hidden;
            min-height: 420px;
            display: flex;
            align-items: center;
        }
        .category-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            opacity: 0.2;
            mix-blend-mode: overlay;
            pointer-events: none;
        }
        .category-hero .container {
            position: relative;
            z-index: 2;
        }
        .category-hero .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 18px;
            border-radius: 40px;
            background: rgba(212, 165, 74, 0.15);
            color: var(--color-primary-light);
            font-size: 0.82rem;
            font-weight: 600;
            letter-spacing: 0.5px;
            text-transform: uppercase;
            border: 1px solid rgba(212, 165, 74, 0.2);
            margin-bottom: 20px;
        }
        .category-hero .hero-badge i {
            font-size: 0.75rem;
        }
        .category-hero h1 {
            margin-bottom: 18px;
            max-width: 760px;
        }
        .category-hero h1 span {
            color: var(--color-primary);
        }
        .category-hero p {
            font-size: 1.1rem;
            max-width: 620px;
            color: var(--color-text-secondary);
            margin-bottom: 28px;
            line-height: 1.8;
        }
        .hero-stats {
            display: flex;
            gap: 32px;
            flex-wrap: wrap;
            margin-top: 12px;
        }
        .hero-stats .stat-item {
            display: flex;
            align-items: center;
            gap: 10px;
            color: var(--color-text-secondary);
            font-size: 0.95rem;
        }
        .hero-stats .stat-item i {
            color: var(--color-primary);
            font-size: 1.1rem;
        }
        .hero-stats .stat-item strong {
            color: var(--color-text);
            font-weight: 700;
            margin-right: 2px;
        }

        /* ===== Guide Overview ===== */
        .guide-overview {
            background: var(--color-bg);
        }
        .guide-overview .grid-2col {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }
        .guide-overview .text-block h2 {
            margin-bottom: 16px;
        }
        .guide-overview .text-block p {
            margin-bottom: 16px;
        }
        .guide-overview .feature-list {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 12px 24px;
            margin-top: 20px;
        }
        .guide-overview .feature-list li {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 0.95rem;
            color: var(--color-text-secondary);
        }
        .guide-overview .feature-list li i {
            color: var(--color-primary);
            font-size: 0.85rem;
        }
        .guide-overview .image-wrap {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
            border: 1px solid var(--color-border);
        }
        .guide-overview .image-wrap img {
            width: 100%;
            height: 340px;
            object-fit: cover;
            display: block;
        }

        /* ===== 使用流程 ===== */
        .guide-steps {
            background: var(--color-secondary);
        }
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 28px;
            counter-reset: step-counter;
        }
        .step-card {
            background: var(--color-bg-card);
            border-radius: var(--radius-md);
            padding: 32px 24px;
            border: 1px solid var(--color-border);
            transition: all var(--transition-base);
            position: relative;
            text-align: center;
        }
        .step-card:hover {
            border-color: var(--color-primary);
            transform: translateY(-4px);
            box-shadow: var(--shadow-glow);
        }
        .step-card .step-number {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 52px;
            height: 52px;
            border-radius: 50%;
            background: rgba(212, 165, 74, 0.12);
            color: var(--color-primary);
            font-size: 1.4rem;
            font-weight: 800;
            margin-bottom: 18px;
            transition: all var(--transition-base);
            counter-increment: step-counter;
        }
        .step-card .step-number::after {
            content: counter(step-counter);
        }
        .step-card:hover .step-number {
            background: var(--color-primary);
            color: var(--color-bg);
            transform: scale(1.05);
        }
        .step-card h4 {
            margin-bottom: 10px;
            color: var(--color-text);
        }
        .step-card p {
            font-size: 0.92rem;
            color: var(--color-text-muted);
            margin-bottom: 0;
        }
        .step-card .step-icon {
            font-size: 1.6rem;
            color: var(--color-primary-light);
            margin-bottom: 12px;
        }

        /* ===== 核心功能 ===== */
        .guide-features {
            background: var(--color-bg);
        }
        .features-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .feature-card {
            background: var(--color-bg-card);
            border-radius: var(--radius-md);
            padding: 32px 24px;
            border: 1px solid var(--color-border);
            transition: all var(--transition-base);
        }
        .feature-card:hover {
            border-color: var(--color-border-light);
            transform: translateY(-3px);
            box-shadow: var(--shadow-md);
        }
        .feature-card .fc-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 56px;
            height: 56px;
            border-radius: var(--radius-sm);
            background: rgba(212, 165, 74, 0.1);
            color: var(--color-primary);
            font-size: 1.5rem;
            margin-bottom: 18px;
            transition: background var(--transition-fast);
        }
        .feature-card:hover .fc-icon {
            background: rgba(212, 165, 74, 0.2);
        }
        .feature-card h4 {
            margin-bottom: 10px;
        }
        .feature-card p {
            font-size: 0.92rem;
            color: var(--color-text-muted);
            margin-bottom: 0;
        }
        .feature-card .tag {
            display: inline-block;
            padding: 2px 12px;
            border-radius: 20px;
            background: rgba(212, 165, 74, 0.1);
            color: var(--color-primary-light);
            font-size: 0.75rem;
            font-weight: 600;
            margin-top: 14px;
            border: 1px solid rgba(212, 165, 74, 0.15);
        }

        /* ===== 使用技巧 ===== */
        .guide-tips {
            background: var(--color-secondary);
        }
        .tips-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }
        .tip-item {
            display: flex;
            gap: 18px;
            background: var(--color-bg-card);
            border-radius: var(--radius-md);
            padding: 24px 28px;
            border: 1px solid var(--color-border);
            transition: all var(--transition-fast);
        }
        .tip-item:hover {
            border-color: var(--color-border-light);
            background: var(--color-bg-elevated);
        }
        .tip-item .tip-icon {
            flex-shrink: 0;
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: rgba(212, 165, 74, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--color-primary);
            font-size: 1.1rem;
        }
        .tip-item .tip-body h4 {
            margin-bottom: 4px;
            font-size: 1rem;
        }
        .tip-item .tip-body p {
            font-size: 0.9rem;
            color: var(--color-text-muted);
            margin-bottom: 0;
        }

        /* ===== FAQ ===== */
        .guide-faq {
            background: var(--color-bg);
        }
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--color-bg-card);
            border-radius: var(--radius-sm);
            border: 1px solid var(--color-border);
            overflow: hidden;
            transition: border-color var(--transition-fast);
        }
        .faq-item.open {
            border-color: var(--color-primary);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 24px;
            font-weight: 600;
            font-size: 1rem;
            color: var(--color-text);
            cursor: pointer;
            background: none;
            width: 100%;
            text-align: left;
            transition: background var(--transition-fast);
            border: none;
        }
        .faq-question:hover {
            background: rgba(212, 165, 74, 0.03);
        }
        .faq-question i {
            font-size: 0.85rem;
            color: var(--color-text-muted);
            transition: transform var(--transition-fast);
        }
        .faq-item.open .faq-question i {
            transform: rotate(180deg);
            color: var(--color-primary);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), padding 0.3s ease;
            padding: 0 24px;
        }
        .faq-item.open .faq-answer {
            max-height: 260px;
            padding: 0 24px 20px 24px;
        }
        .faq-answer p {
            font-size: 0.95rem;
            color: var(--color-text-secondary);
            margin-bottom: 0;
        }

        /* ===== CTA ===== */
        .guide-cta {
            background: linear-gradient(165deg, #141a26 0%, #1a1f2e 50%, #0c0f17 100%);
            text-align: center;
            padding: 80px 0 70px;
            position: relative;
            overflow: hidden;
        }
        .guide-cta::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-3.png') center center / cover no-repeat;
            opacity: 0.08;
            mix-blend-mode: overlay;
            pointer-events: none;
        }
        .guide-cta .container {
            position: relative;
            z-index: 2;
        }
        .guide-cta h2 {
            margin-bottom: 12px;
        }
        .guide-cta p {
            max-width: 560px;
            margin: 0 auto 28px auto;
            color: var(--color-text-muted);
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 36px;
            border-radius: var(--radius-sm);
            background: var(--color-primary);
            color: var(--color-bg);
            font-weight: 700;
            font-size: 1rem;
            border: none;
            transition: all var(--transition-fast);
            box-shadow: var(--shadow-sm);
        }
        .btn-primary:hover {
            background: var(--color-primary-dark);
            color: var(--color-bg);
            transform: translateY(-2px);
            box-shadow: var(--shadow-glow);
        }
        .btn-secondary {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 36px;
            border-radius: var(--radius-sm);
            background: transparent;
            color: var(--color-text);
            font-weight: 600;
            font-size: 1rem;
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-fast);
        }
        .btn-secondary:hover {
            border-color: var(--color-primary);
            color: var(--color-primary);
            background: rgba(212, 165, 74, 0.04);
        }
        .cta-buttons {
            display: flex;
            gap: 16px;
            justify-content: center;
            flex-wrap: wrap;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--color-secondary);
            border-top: 1px solid var(--color-border);
            padding: 60px 0 0 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.2fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid var(--color-border);
        }
        .footer-brand .logo {
            margin-bottom: 16px;
        }
        .footer-brand p {
            font-size: 0.92rem;
            color: var(--color-text-muted);
            margin-bottom: 0;
            max-width: 340px;
        }
        .footer-col h4 {
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--color-text);
            margin-bottom: 18px;
            letter-spacing: 0.3px;
        }
        .footer-col a {
            display: block;
            padding: 5px 0;
            font-size: 0.9rem;
            color: var(--color-text-muted);
            transition: color var(--transition-fast), padding-left var(--transition-fast);
        }
        .footer-col a:hover {
            color: var(--color-primary-light);
            padding-left: 4px;
        }
        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 22px 0;
            font-size: 0.85rem;
            color: var(--color-text-muted);
            flex-wrap: wrap;
            gap: 12px;
        }
        .footer-bottom a {
            color: var(--color-primary);
        }
        .footer-bottom a:hover {
            color: var(--color-primary-light);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .features-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
            .guide-overview .grid-2col {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .guide-overview .image-wrap img {
                height: 260px;
            }
        }

        @media (max-width: 768px) {
            :root {
                --header-height: 66px;
            }
            .section-padding {
                padding: 56px 0;
            }
            .nav-main {
                position: fixed;
                top: var(--header-height);
                left: 0;
                right: 0;
                background: rgba(12, 15, 23, 0.98);
                backdrop-filter: blur(20px);
                -webkit-backdrop-filter: blur(20px);
                flex-direction: column;
                padding: 20px 24px;
                gap: 8px;
                border-bottom: 1px solid var(--color-border);
                transform: translateY(-110%);
                opacity: 0;
                transition: all var(--transition-base);
                pointer-events: none;
                max-height: 70vh;
                overflow-y: auto;
            }
            .nav-main.open {
                transform: translateY(0);
                opacity: 1;
                pointer-events: all;
            }
            .nav-main a {
                padding: 12px 18px;
                font-size: 1rem;
                width: 100%;
                border-radius: var(--radius-sm);
            }
            .nav-main a.active::after {
                display: none;
            }
            .nav-main a.active {
                background: rgba(212, 165, 74, 0.12);
            }
            .mobile-toggle {
                display: flex;
            }
            .nav-actions .btn-cta-nav {
                display: none;
            }
            .category-hero {
                padding: 110px 0 56px 0;
                min-height: auto;
            }
            .hero-stats {
                gap: 16px;
            }
            .hero-stats .stat-item {
                font-size: 0.85rem;
            }
            .steps-grid {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }
            .step-card {
                padding: 24px 18px;
            }
            .features-grid {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }
            .feature-card {
                padding: 24px 18px;
            }
            .tips-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .tip-item {
                padding: 18px 20px;
            }
            .guide-overview .feature-list {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .cta-buttons {
                flex-direction: column;
                align-items: center;
            }
            .faq-question {
                padding: 14px 18px;
                font-size: 0.95rem;
            }
            .faq-answer {
                padding: 0 18px;
            }
            .faq-item.open .faq-answer {
                padding: 0 18px 16px 18px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .category-hero h1 {
                font-size: 1.8rem;
            }
            .category-hero p {
                font-size: 0.95rem;
            }
            .steps-grid {
                grid-template-columns: 1fr;
            }
            .features-grid {
                grid-template-columns: 1fr;
            }
            .hero-stats {
                flex-direction: column;
                gap: 8px;
            }
            .guide-overview .image-wrap img {
                height: 200px;
            }
            .logo {
                font-size: 1.1rem;
            }
            .logo-icon {
                width: 32px;
                height: 32px;
                font-size: 1rem;
            }
            .section-title {
                font-size: 1.5rem;
            }
            .footer-col a {
                font-size: 0.85rem;
            }
        }

/* roulang page: category2 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #e03a2e;
            --primary-dark: #c02a1e;
            --primary-light: #fbe9e7;
            --accent: #ff6f00;
            --accent-light: #fff3e0;
            --bg-dark: #0b0f1a;
            --bg-dark-alt: #111827;
            --bg-card: #1a1f2e;
            --bg-card-hover: #242b3d;
            --text-white: #f1f5f9;
            --text-light: #c8d0dc;
            --text-muted: #8892a8;
            --border-color: #2a3346;
            --border-light: #3a455e;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.4);
            --shadow-md: 0 8px 30px rgba(0, 0, 0, 0.5);
            --shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.6);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 22px;
            --radius-xl: 30px;
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
            --max-width: 1200px;
            --header-height: 72px;
        }

        /* ===== 基础 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-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-white);
            background: var(--bg-dark);
            min-height: 100vh;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: var(--text-white);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--primary);
        }
        button,
        input,
        textarea {
            font: inherit;
            color: inherit;
            border: none;
            outline: none;
            background: none;
        }
        button {
            cursor: pointer;
        }
        ul,
        ol {
            list-style: none;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-weight: 700;
            line-height: 1.3;
            color: var(--text-white);
        }
        h1 {
            font-size: clamp(2.2rem, 6vw, 4.2rem);
        }
        h2 {
            font-size: clamp(1.8rem, 4vw, 2.8rem);
        }
        h3 {
            font-size: clamp(1.3rem, 2.5vw, 1.8rem);
        }
        h4 {
            font-size: clamp(1.1rem, 2vw, 1.4rem);
        }
        p {
            color: var(--text-light);
            margin-bottom: 1rem;
        }
        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }
        .section {
            padding: 80px 0;
        }
        .section-alt {
            background: var(--bg-dark-alt);
        }
        .section-title {
            text-align: center;
            margin-bottom: 56px;
        }
        .section-title h2 {
            margin-bottom: 12px;
            position: relative;
            display: inline-block;
        }
        .section-title h2::after {
            content: '';
            display: block;
            width: 60px;
            height: 4px;
            background: var(--primary);
            border-radius: 4px;
            margin: 14px auto 0;
        }
        .section-title p {
            max-width: 640px;
            margin: 12px auto 0;
            font-size: 1.1rem;
            color: var(--text-muted);
        }

        /* ===== 按钮 ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 0.95rem;
            transition: var(--transition);
            border: 2px solid transparent;
            letter-spacing: 0.3px;
        }
        .btn-primary {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            border-color: var(--primary-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(224, 58, 46, 0.35);
        }
        .btn-outline {
            background: transparent;
            color: var(--text-white);
            border-color: var(--border-light);
        }
        .btn-outline:hover {
            border-color: var(--primary);
            color: var(--primary);
            transform: translateY(-2px);
        }
        .btn-accent {
            background: var(--accent);
            color: #fff;
            border-color: var(--accent);
        }
        .btn-accent:hover {
            background: #e06000;
            border-color: #e06000;
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(255, 111, 0, 0.35);
        }
        .btn-lg {
            padding: 16px 40px;
            font-size: 1.1rem;
            border-radius: var(--radius-md);
        }
        .btn-sm {
            padding: 8px 20px;
            font-size: 0.85rem;
        }
        .btn i {
            font-size: 1.1em;
        }
        .btn:focus-visible {
            outline: 3px solid var(--primary);
            outline-offset: 3px;
        }

        /* ===== 导航 ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(11, 15, 26, 0.92);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(42, 51, 70, 0.5);
            height: var(--header-height);
            transition: var(--transition);
        }
        .site-header.scrolled {
            background: rgba(11, 15, 26, 0.98);
            box-shadow: 0 4px 30px rgba(0, 0, 0, 0.4);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: var(--header-height);
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.4rem;
            font-weight: 800;
            color: var(--text-white);
            letter-spacing: -0.5px;
            flex-shrink: 0;
        }
        .logo:hover {
            color: var(--text-white);
        }
        .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            border-radius: var(--radius-sm);
            font-size: 1.2rem;
            font-weight: 800;
            color: #fff;
        }
        .nav-main {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .nav-main a {
            padding: 8px 18px;
            border-radius: var(--radius-sm);
            font-weight: 500;
            font-size: 0.9rem;
            color: var(--text-light);
            transition: var(--transition);
            position: relative;
            white-space: nowrap;
        }
        .nav-main a:hover {
            color: var(--text-white);
            background: rgba(255, 255, 255, 0.06);
        }
        .nav-main a.active {
            color: #fff;
            background: rgba(224, 58, 46, 0.2);
        }
        .nav-main a.active::after {
            content: '';
            position: absolute;
            bottom: 4px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: var(--primary);
            border-radius: 4px;
        }
        .nav-right {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }
        .nav-search {
            display: flex;
            align-items: center;
            background: rgba(255, 255, 255, 0.07);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-sm);
            padding: 0 14px;
            height: 40px;
            width: 200px;
            transition: var(--transition);
        }
        .nav-search:focus-within {
            border-color: var(--primary);
            background: rgba(255, 255, 255, 0.1);
            box-shadow: 0 0 0 3px rgba(224, 58, 46, 0.15);
        }
        .nav-search input {
            flex: 1;
            background: transparent;
            color: var(--text-white);
            font-size: 0.85rem;
            padding: 0 8px;
            height: 100%;
        }
        .nav-search input::placeholder {
            color: var(--text-muted);
        }
        .nav-search i {
            color: var(--text-muted);
            font-size: 0.9rem;
        }
        .nav-cta {
            padding: 8px 22px;
            border-radius: var(--radius-sm);
            background: var(--primary);
            color: #fff;
            font-weight: 600;
            font-size: 0.85rem;
            transition: var(--transition);
            white-space: nowrap;
        }
        .nav-cta:hover {
            background: var(--primary-dark);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: 0 4px 16px rgba(224, 58, 46, 0.3);
        }
        .menu-toggle {
            display: none;
            width: 40px;
            height: 40px;
            align-items: center;
            justify-content: center;
            background: rgba(255, 255, 255, 0.06);
            border-radius: var(--radius-sm);
            font-size: 1.3rem;
            color: var(--text-white);
            transition: var(--transition);
        }
        .menu-toggle:hover {
            background: rgba(255, 255, 255, 0.12);
        }

        /* ===== 移动端导航 ===== */
        .mobile-menu {
            display: none;
            position: fixed;
            top: var(--header-height);
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(11, 15, 26, 0.98);
            backdrop-filter: blur(20px);
            z-index: 999;
            padding: 24px;
            flex-direction: column;
            gap: 8px;
            overflow-y: auto;
            opacity: 0;
            transform: translateY(-10px);
            transition: opacity 0.3s ease, transform 0.3s ease;
            pointer-events: none;
        }
        .mobile-menu.open {
            display: flex;
            opacity: 1;
            transform: translateY(0);
            pointer-events: all;
        }
        .mobile-menu a {
            padding: 14px 20px;
            border-radius: var(--radius-sm);
            font-size: 1.05rem;
            font-weight: 500;
            color: var(--text-light);
            transition: var(--transition);
        }
        .mobile-menu a:hover {
            background: rgba(255, 255, 255, 0.06);
            color: var(--text-white);
        }
        .mobile-menu a.active {
            color: #fff;
            background: rgba(224, 58, 46, 0.2);
        }
        .mobile-menu .nav-cta-mobile {
            margin-top: 12px;
            padding: 14px 20px;
            background: var(--primary);
            color: #fff;
            border-radius: var(--radius-sm);
            text-align: center;
            font-weight: 600;
        }
        .mobile-menu .nav-cta-mobile:hover {
            background: var(--primary-dark);
            color: #fff;
        }

        /* ===== Hero / Banner ===== */
        .page-banner {
            position: relative;
            padding: 140px 0 80px;
            background: linear-gradient(135deg, var(--bg-dark) 0%, var(--bg-dark-alt) 50%, #0f0a1a 100%);
            overflow: hidden;
            min-height: 360px;
            display: flex;
            align-items: center;
        }
        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            opacity: 0.25;
            z-index: 0;
        }
        .page-banner::after {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 30% 50%, rgba(224, 58, 46, 0.12) 0%, transparent 70%),
                radial-gradient(ellipse at 70% 50%, rgba(255, 111, 0, 0.08) 0%, transparent 70%);
            z-index: 1;
        }
        .page-banner .container {
            position: relative;
            z-index: 2;
            text-align: center;
        }
        .page-banner h1 {
            font-size: clamp(2.4rem, 6vw, 4rem);
            font-weight: 900;
            letter-spacing: -1px;
            margin-bottom: 16px;
            background: linear-gradient(135deg, #fff 40%, var(--primary) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .page-banner p {
            max-width: 680px;
            margin: 0 auto 24px;
            font-size: 1.15rem;
            color: var(--text-light);
            opacity: 0.9;
        }
        .page-banner .banner-meta {
            display: flex;
            justify-content: center;
            gap: 32px;
            flex-wrap: wrap;
            margin-top: 20px;
        }
        .page-banner .banner-meta span {
            display: flex;
            align-items: center;
            gap: 8px;
            color: var(--text-muted);
            font-size: 0.95rem;
        }
        .page-banner .banner-meta i {
            color: var(--primary);
        }

        /* ===== 卡片通用 ===== */
        .card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: var(--transition);
        }
        .card:hover {
            border-color: var(--border-light);
            transform: translateY(-6px);
            box-shadow: var(--shadow-md);
        }
        .card-img {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16 / 9;
            background: var(--bg-dark-alt);
        }
        .card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .card:hover .card-img img {
            transform: scale(1.06);
        }
        .card-img .badge {
            position: absolute;
            top: 12px;
            left: 12px;
        }
        .card-body {
            padding: 20px 22px 24px;
        }
        .card-body h3 {
            margin-bottom: 8px;
            font-size: 1.2rem;
        }
        .card-body h3 a {
            color: var(--text-white);
        }
        .card-body h3 a:hover {
            color: var(--primary);
        }
        .card-body p {
            font-size: 0.92rem;
            color: var(--text-muted);
            margin-bottom: 12px;
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .card-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            font-size: 0.82rem;
            color: var(--text-muted);
        }
        .card-meta i {
            margin-right: 4px;
            color: var(--primary);
        }

        /* ===== 徽章 / 标签 ===== */
        .badge {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            padding: 4px 14px;
            border-radius: 20px;
            font-size: 0.75rem;
            font-weight: 600;
            letter-spacing: 0.3px;
            text-transform: uppercase;
        }
        .badge-live {
            background: rgba(224, 58, 46, 0.2);
            color: var(--primary);
            border: 1px solid rgba(224, 58, 46, 0.3);
        }
        .badge-live::before {
            content: '';
            display: inline-block;
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--primary);
            animation: pulse-dot 1.2s infinite;
        }
        @keyframes pulse-dot {
            0%,
            100% {
                opacity: 1;
                transform: scale(1);
            }
            50% {
                opacity: 0.4;
                transform: scale(1.4);
            }
        }
        .badge-hot {
            background: rgba(255, 111, 0, 0.15);
            color: var(--accent);
            border: 1px solid rgba(255, 111, 0, 0.25);
        }
        .badge-new {
            background: rgba(16, 185, 129, 0.15);
            color: #10b981;
            border: 1px solid rgba(16, 185, 129, 0.25);
        }
        .badge-upcoming {
            background: rgba(99, 102, 241, 0.15);
            color: #818cf8;
            border: 1px solid rgba(99, 102, 241, 0.25);
        }
        .tag {
            display: inline-block;
            padding: 4px 14px;
            border-radius: 20px;
            font-size: 0.78rem;
            font-weight: 500;
            background: rgba(255, 255, 255, 0.06);
            color: var(--text-light);
            border: 1px solid var(--border-color);
            transition: var(--transition);
        }
        .tag:hover {
            background: rgba(224, 58, 46, 0.12);
            border-color: rgba(224, 58, 46, 0.25);
            color: var(--primary);
        }

        /* ===== 赛事特色网格 ===== */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
            gap: 28px;
        }
        .feature-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 32px 28px;
            text-align: center;
            transition: var(--transition);
        }
        .feature-card:hover {
            border-color: var(--border-light);
            transform: translateY(-6px);
            box-shadow: var(--shadow-md);
        }
        .feature-card .icon-wrap {
            width: 64px;
            height: 64px;
            margin: 0 auto 18px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: var(--radius-md);
            font-size: 1.6rem;
            background: rgba(224, 58, 46, 0.1);
            color: var(--primary);
            transition: var(--transition);
        }
        .feature-card:hover .icon-wrap {
            background: var(--primary);
            color: #fff;
            transform: scale(1.05);
        }
        .feature-card h4 {
            margin-bottom: 8px;
        }
        .feature-card p {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-bottom: 0;
        }
        .feature-card .stat-num {
            font-size: 2rem;
            font-weight: 800;
            color: var(--primary);
            margin-top: 12px;
        }

        /* ===== 赛事卡片网格 ===== */
        .events-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
            gap: 28px;
        }
        .event-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }
        .event-card:hover {
            border-color: var(--border-light);
            transform: translateY(-6px);
            box-shadow: var(--shadow-md);
        }
        .event-card .event-img {
            position: relative;
            aspect-ratio: 16 / 9;
            overflow: hidden;
            background: var(--bg-dark-alt);
        }
        .event-card .event-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .event-card:hover .event-img img {
            transform: scale(1.06);
        }
        .event-card .event-img .badge {
            position: absolute;
            top: 12px;
            left: 12px;
        }
        .event-card .event-img .event-time {
            position: absolute;
            bottom: 12px;
            right: 12px;
            background: rgba(0, 0, 0, 0.75);
            backdrop-filter: blur(8px);
            padding: 4px 14px;
            border-radius: 20px;
            font-size: 0.8rem;
            color: #fff;
            font-weight: 500;
        }
        .event-card .event-body {
            padding: 20px 22px 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .event-card .event-body .event-league {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.82rem;
            color: var(--text-muted);
            margin-bottom: 8px;
        }
        .event-card .event-body .event-league i {
            color: var(--primary);
        }
        .event-card .event-body h3 {
            font-size: 1.15rem;
            margin-bottom: 6px;
        }
        .event-card .event-body h3 a {
            color: var(--text-white);
        }
        .event-card .event-body h3 a:hover {
            color: var(--primary);
        }
        .event-card .event-body p {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-bottom: 12px;
            flex: 1;
        }
        .event-card .event-footer {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding-top: 12px;
            border-top: 1px solid var(--border-color);
        }
        .event-card .event-footer .odds {
            display: flex;
            gap: 8px;
        }
        .event-card .event-footer .odds span {
            padding: 2px 12px;
            border-radius: 4px;
            background: rgba(255, 255, 255, 0.06);
            font-size: 0.8rem;
            font-weight: 600;
            color: var(--text-light);
        }
        .event-card .event-footer .odds span.highlight {
            color: var(--accent);
            background: rgba(255, 111, 0, 0.12);
        }

        /* ===== 时间线 ===== */
        .timeline {
            position: relative;
            padding-left: 40px;
        }
        .timeline::before {
            content: '';
            position: absolute;
            left: 14px;
            top: 0;
            bottom: 0;
            width: 3px;
            background: linear-gradient(to bottom, var(--primary), var(--accent));
            border-radius: 4px;
        }
        .timeline-item {
            position: relative;
            margin-bottom: 36px;
            padding-left: 20px;
        }
        .timeline-item:last-child {
            margin-bottom: 0;
        }
        .timeline-item::before {
            content: '';
            position: absolute;
            left: -30px;
            top: 6px;
            width: 14px;
            height: 14px;
            border-radius: 50%;
            background: var(--primary);
            border: 3px solid var(--bg-dark);
            box-shadow: 0 0 0 3px var(--primary);
        }
        .timeline-item .time-label {
            font-size: 0.82rem;
            color: var(--text-muted);
            font-weight: 500;
            margin-bottom: 4px;
        }
        .timeline-item h4 {
            font-size: 1.1rem;
            margin-bottom: 4px;
        }
        .timeline-item p {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-bottom: 0;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--primary-dark) 0%, #8a1a14 100%);
            padding: 80px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-3.png') center center / cover no-repeat;
            opacity: 0.1;
            z-index: 0;
        }
        .cta-section .container {
            position: relative;
            z-index: 1;
        }
        .cta-section h2 {
            font-size: clamp(1.8rem, 4vw, 2.8rem);
            margin-bottom: 16px;
        }
        .cta-section p {
            max-width: 600px;
            margin: 0 auto 28px;
            color: rgba(255, 255, 255, 0.8);
            font-size: 1.05rem;
        }
        .cta-section .btn {
            background: #fff;
            color: var(--primary-dark);
            border-color: #fff;
        }
        .cta-section .btn:hover {
            background: transparent;
            color: #fff;
            border-color: #fff;
            transform: translateY(-2px);
        }

        /* ===== FAQ ===== */
        .faq-grid {
            max-width: 780px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-sm);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: var(--border-light);
        }
        .faq-item .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 24px;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
            color: var(--text-white);
            font-size: 1rem;
            user-select: none;
        }
        .faq-item .faq-question:hover {
            background: rgba(255, 255, 255, 0.03);
        }
        .faq-item .faq-question i {
            color: var(--text-muted);
            transition: var(--transition);
            font-size: 0.9rem;
        }
        .faq-item.active .faq-question i {
            transform: rotate(180deg);
            color: var(--primary);
        }
        .faq-item .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
            padding: 0 24px;
            color: var(--text-muted);
            font-size: 0.92rem;
            line-height: 1.7;
        }
        .faq-item.active .faq-answer {
            max-height: 300px;
            padding: 0 24px 20px;
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--bg-dark-alt);
            border-top: 1px solid var(--border-color);
            padding: 60px 0 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.2fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-brand .logo {
            margin-bottom: 16px;
        }
        .footer-brand p {
            font-size: 0.88rem;
            color: var(--text-muted);
            line-height: 1.7;
            max-width: 360px;
        }
        .footer-col h4 {
            font-size: 0.95rem;
            color: var(--text-white);
            margin-bottom: 16px;
            font-weight: 600;
        }
        .footer-col a {
            display: block;
            padding: 5px 0;
            font-size: 0.88rem;
            color: var(--text-muted);
            transition: var(--transition);
        }
        .footer-col a:hover {
            color: var(--primary);
            padding-left: 4px;
        }
        .footer-bottom {
            border-top: 1px solid var(--border-color);
            padding: 24px 0;
            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);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
            .nav-search {
                width: 160px;
            }
        }

        @media (max-width: 768px) {
            .nav-main {
                display: none;
            }
            .nav-search {
                display: none;
            }
            .nav-cta {
                display: none;
            }
            .menu-toggle {
                display: flex;
            }
            .page-banner {
                padding: 120px 0 60px;
                min-height: 300px;
            }
            .page-banner .banner-meta {
                gap: 16px;
                flex-direction: column;
                align-items: center;
            }
            .section {
                padding: 56px 0;
            }
            .events-grid {
                grid-template-columns: 1fr;
            }
            .features-grid {
                grid-template-columns: 1fr 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .timeline {
                padding-left: 30px;
            }
            .timeline-item::before {
                left: -22px;
                width: 12px;
                height: 12px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .header-inner {
                padding: 0 16px;
            }
            .features-grid {
                grid-template-columns: 1fr;
            }
            .page-banner h1 {
                font-size: 1.8rem;
            }
            .page-banner p {
                font-size: 0.95rem;
            }
            .event-card .event-body {
                padding: 16px 18px 20px;
            }
            .faq-item .faq-question {
                padding: 14px 18px;
                font-size: 0.92rem;
            }
            .faq-item .faq-answer {
                padding: 0 18px;
                font-size: 0.85rem;
            }
            .faq-item.active .faq-answer {
                padding: 0 18px 16px;
            }
            .btn-lg {
                padding: 14px 28px;
                font-size: 1rem;
            }
            .card-body {
                padding: 16px 18px 20px;
            }
            .footer-grid {
                gap: 20px;
            }
            .site-footer {
                padding: 40px 0 0;
            }
        }

        @media (min-width: 769px) {
            .mobile-menu {
                display: none !important;
            }
        }

/* roulang page: category3 */
/* ===== Design Variables ===== */
        :root {
            --color-primary: #d4a84b;
            --color-primary-light: #e8c46a;
            --color-primary-dark: #b8892f;
            --color-secondary: #1a1a2e;
            --color-secondary-light: #2a2a4a;
            --color-bg: #0c0c16;
            --color-bg-alt: #12121f;
            --color-bg-card: #181830;
            --color-bg-card-hover: #202040;
            --color-text: #f0ece4;
            --color-text-secondary: #b8b0a4;
            --color-text-muted: #7a7266;
            --color-border: #2a2a44;
            --color-border-light: #3a3a54;
            --color-success: #4caf50;
            --color-warning: #ff9800;
            --color-danger: #e53935;
            --color-info: #42a5f5;
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-sm: 0 2px 12px rgba(0, 0, 0, 0.3);
            --shadow-md: 0 8px 32px rgba(0, 0, 0, 0.4);
            --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.5);
            --shadow-glow: 0 0 30px rgba(212, 168, 75, 0.15);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Inter', -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
            --container-max: 1200px;
            --nav-height: 72px;
        }

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

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

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--color-text);
            background: var(--color-bg);
            min-height: 100vh;
            overflow-x: hidden;
        }

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

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

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

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

        ul,
        ol {
            list-style: none;
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-weight: 700;
            line-height: 1.3;
            color: var(--color-text);
        }

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

        @media (max-width: 768px) {
            .container {
                padding: 0 16px;
            }
        }

        /* ===== Header / Nav (SaaS Command Bar Style) ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(12, 12, 22, 0.85);
            backdrop-filter: blur(20px) saturate(1.4);
            -webkit-backdrop-filter: blur(20px) saturate(1.4);
            border-bottom: 1px solid var(--color-border);
            height: var(--nav-height);
            transition: var(--transition);
        }

        .site-header.scrolled {
            background: rgba(12, 12, 22, 0.96);
            box-shadow: 0 4px 30px rgba(0, 0, 0, 0.5);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: var(--nav-height);
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
            gap: 20px;
        }

        /* Logo */
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 22px;
            font-weight: 800;
            color: var(--color-text);
            letter-spacing: -0.3px;
            flex-shrink: 0;
        }

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

        .logo-icon {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
            border-radius: var(--radius-sm);
            font-size: 18px;
            font-weight: 800;
            color: #0c0c16;
            box-shadow: 0 0 20px rgba(212, 168, 75, 0.25);
        }

        /* Nav Main */
        .nav-main {
            display: flex;
            align-items: center;
            gap: 6px;
            flex: 1;
            justify-content: center;
        }

        .nav-main a {
            padding: 8px 18px;
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-weight: 500;
            color: var(--color-text-secondary);
            transition: var(--transition);
            position: relative;
            white-space: nowrap;
        }

        .nav-main a:hover {
            color: var(--color-text);
            background: rgba(255, 255, 255, 0.05);
        }

        .nav-main a.active {
            color: var(--color-primary);
            background: rgba(212, 168, 75, 0.1);
        }

        .nav-main a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: var(--color-primary);
            border-radius: 2px;
        }

        /* Right actions */
        .nav-actions {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }

        .search-toggle {
            width: 42px;
            height: 42px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: var(--radius-sm);
            background: rgba(255, 255, 255, 0.05);
            color: var(--color-text-secondary);
            font-size: 18px;
            cursor: pointer;
            transition: var(--transition);
            border: 1px solid var(--color-border);
        }

        .search-toggle:hover {
            background: rgba(255, 255, 255, 0.1);
            color: var(--color-text);
            border-color: var(--color-border-light);
        }

        .btn-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 24px;
            background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
            color: #0c0c16;
            font-weight: 700;
            font-size: 14px;
            border-radius: var(--radius-sm);
            transition: var(--transition);
            cursor: pointer;
            border: none;
            box-shadow: 0 4px 16px rgba(212, 168, 75, 0.25);
        }

        .btn-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(212, 168, 75, 0.35);
            color: #0c0c16;
        }

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

        /* Mobile menu toggle */
        .menu-toggle {
            display: none;
            width: 42px;
            height: 42px;
            align-items: center;
            justify-content: center;
            border-radius: var(--radius-sm);
            background: rgba(255, 255, 255, 0.05);
            color: var(--color-text);
            font-size: 22px;
            cursor: pointer;
            border: 1px solid var(--color-border);
            transition: var(--transition);
        }

        .menu-toggle:hover {
            background: rgba(255, 255, 255, 0.1);
        }

        /* ===== Mobile Nav ===== */
        .mobile-nav {
            display: none;
            position: fixed;
            top: var(--nav-height);
            left: 0;
            right: 0;
            background: rgba(12, 12, 22, 0.98);
            backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--color-border);
            padding: 16px 24px;
            z-index: 999;
            flex-direction: column;
            gap: 6px;
            transform: translateY(-10px);
            opacity: 0;
            transition: var(--transition);
            pointer-events: none;
        }

        .mobile-nav.open {
            transform: translateY(0);
            opacity: 1;
            pointer-events: auto;
        }

        .mobile-nav a {
            padding: 12px 16px;
            border-radius: var(--radius-sm);
            font-size: 16px;
            font-weight: 500;
            color: var(--color-text-secondary);
            transition: var(--transition);
        }

        .mobile-nav a:hover {
            background: rgba(255, 255, 255, 0.05);
            color: var(--color-text);
        }

        .mobile-nav a.active {
            color: var(--color-primary);
            background: rgba(212, 168, 75, 0.1);
        }

        /* ===== Hero / Banner ===== */
        .page-banner {
            padding: 140px 0 80px;
            background:
                linear-gradient(135deg, rgba(12, 12, 22, 0.92) 0%, rgba(26, 26, 46, 0.85) 100%),
                url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            position: relative;
            border-bottom: 1px solid var(--color-border);
            overflow: hidden;
        }

        .page-banner::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: radial-gradient(ellipse at 30% 50%, rgba(212, 168, 75, 0.08) 0%, transparent 60%);
            pointer-events: none;
        }

        .page-banner .container {
            position: relative;
            z-index: 1;
            text-align: center;
        }

        .page-banner h1 {
            font-size: 48px;
            font-weight: 800;
            letter-spacing: -0.5px;
            margin-bottom: 16px;
            background: linear-gradient(135deg, var(--color-text), var(--color-primary-light));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .page-banner p {
            font-size: 18px;
            color: var(--color-text-secondary);
            max-width: 640px;
            margin: 0 auto 24px;
            line-height: 1.7;
        }

        .banner-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            justify-content: center;
        }

        .banner-tags span {
            padding: 6px 18px;
            border-radius: 50px;
            background: rgba(212, 168, 75, 0.12);
            border: 1px solid rgba(212, 168, 75, 0.25);
            color: var(--color-primary-light);
            font-size: 14px;
            font-weight: 500;
        }

        @media (max-width: 768px) {
            .page-banner {
                padding: 110px 0 60px;
            }
            .page-banner h1 {
                font-size: 30px;
            }
            .page-banner p {
                font-size: 16px;
            }
        }

        /* ===== Section Common ===== */
        .section {
            padding: 80px 0;
        }

        .section-header {
            text-align: center;
            margin-bottom: 52px;
        }

        .section-header h2 {
            font-size: 34px;
            font-weight: 700;
            margin-bottom: 12px;
            letter-spacing: -0.3px;
        }

        .section-header p {
            font-size: 17px;
            color: var(--color-text-secondary);
            max-width: 560px;
            margin: 0 auto;
        }

        .section-header .accent-line {
            width: 60px;
            height: 4px;
            background: linear-gradient(90deg, var(--color-primary), var(--color-primary-dark));
            border-radius: 2px;
            margin: 16px auto 0;
        }

        @media (max-width: 768px) {
            .section {
                padding: 56px 0;
            }
            .section-header h2 {
                font-size: 26px;
            }
            .section-header p {
                font-size: 15px;
            }
        }

        /* ===== Card Base ===== */
        .card {
            background: var(--color-bg-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            padding: 28px;
            transition: var(--transition);
        }

        .card:hover {
            background: var(--color-bg-card-hover);
            border-color: var(--color-border-light);
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }

        /* ===== Promotions Grid ===== */
        .promo-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }

        @media (max-width: 1024px) {
            .promo-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 640px) {
            .promo-grid {
                grid-template-columns: 1fr;
            }
        }

        .promo-card {
            background: var(--color-bg-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }

        .promo-card:hover {
            transform: translateY(-6px);
            border-color: var(--color-border-light);
            box-shadow: var(--shadow-lg), var(--shadow-glow);
        }

        .promo-card .card-img {
            height: 200px;
            overflow: hidden;
            position: relative;
        }

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

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

        .promo-card .card-img .badge {
            position: absolute;
            top: 16px;
            left: 16px;
            padding: 6px 16px;
            border-radius: 50px;
            font-size: 13px;
            font-weight: 700;
            background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
            color: #0c0c16;
            box-shadow: 0 4px 12px rgba(212, 168, 75, 0.3);
        }

        .promo-card .card-img .badge.hot {
            background: linear-gradient(135deg, #e53935, #b71c1c);
            color: #fff;
        }

        .promo-card .card-img .badge.new {
            background: linear-gradient(135deg, #4caf50, #2e7d32);
            color: #fff;
        }

        .promo-card .card-body {
            padding: 24px 24px 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .promo-card .card-body h3 {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--color-text);
        }

        .promo-card .card-body p {
            font-size: 15px;
            color: var(--color-text-secondary);
            line-height: 1.6;
            margin-bottom: 16px;
            flex: 1;
        }

        .promo-card .card-footer {
            padding: 0 24px 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
        }

        .promo-card .card-footer .tag {
            padding: 4px 14px;
            border-radius: 50px;
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid var(--color-border);
            font-size: 13px;
            color: var(--color-text-muted);
        }

        .promo-card .card-footer .btn-sm {
            padding: 8px 20px;
            border-radius: var(--radius-sm);
            font-size: 14px;
            font-weight: 600;
            background: rgba(212, 168, 75, 0.12);
            color: var(--color-primary);
            border: 1px solid rgba(212, 168, 75, 0.2);
            cursor: pointer;
            transition: var(--transition);
        }

        .promo-card .card-footer .btn-sm:hover {
            background: var(--color-primary);
            color: #0c0c16;
            border-color: var(--color-primary);
        }

        /* ===== Featured Promo (Large) ===== */
        .featured-promo {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
            background: var(--color-bg-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            margin-bottom: 60px;
        }

        .featured-promo .promo-visual {
            height: 100%;
            min-height: 340px;
            overflow: hidden;
        }

        .featured-promo .promo-visual img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .featured-promo .promo-info {
            padding: 40px 40px 40px 0;
        }

        .featured-promo .promo-info .badge-lg {
            display: inline-block;
            padding: 6px 20px;
            border-radius: 50px;
            font-size: 14px;
            font-weight: 700;
            background: rgba(212, 168, 75, 0.15);
            color: var(--color-primary-light);
            border: 1px solid rgba(212, 168, 75, 0.25);
            margin-bottom: 16px;
        }

        .featured-promo .promo-info h2 {
            font-size: 30px;
            font-weight: 800;
            margin-bottom: 14px;
            letter-spacing: -0.3px;
        }

        .featured-promo .promo-info p {
            font-size: 16px;
            color: var(--color-text-secondary);
            line-height: 1.7;
            margin-bottom: 20px;
        }

        .featured-promo .promo-info .promo-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            margin-bottom: 24px;
        }

        .featured-promo .promo-info .promo-meta span {
            font-size: 14px;
            color: var(--color-text-muted);
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .featured-promo .promo-info .promo-meta i {
            color: var(--color-primary);
        }

        @media (max-width: 900px) {
            .featured-promo {
                grid-template-columns: 1fr;
                gap: 0;
            }
            .featured-promo .promo-visual {
                min-height: 220px;
            }
            .featured-promo .promo-info {
                padding: 28px 24px;
            }
            .featured-promo .promo-info h2 {
                font-size: 24px;
            }
        }

        /* ===== Steps / Timeline ===== */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            counter-reset: step;
        }

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

        @media (max-width: 520px) {
            .steps-grid {
                grid-template-columns: 1fr;
            }
        }

        .step-card {
            background: var(--color-bg-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            padding: 32px 24px;
            text-align: center;
            transition: var(--transition);
            position: relative;
        }

        .step-card:hover {
            border-color: var(--color-border-light);
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }

        .step-card .step-number {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: linear-gradient(135deg, rgba(212, 168, 75, 0.15), rgba(212, 168, 75, 0.05));
            border: 1px solid rgba(212, 168, 75, 0.2);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            font-weight: 800;
            color: var(--color-primary);
            margin: 0 auto 18px;
        }

        .step-card h4 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 8px;
        }

        .step-card p {
            font-size: 14px;
            color: var(--color-text-secondary);
            line-height: 1.6;
        }

        /* ===== Rules / Terms ===== */
        .rules-list {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
        }

        @media (max-width: 640px) {
            .rules-list {
                grid-template-columns: 1fr;
            }
        }

        .rules-list li {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            padding: 16px 20px;
            background: var(--color-bg-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-sm);
            font-size: 15px;
            color: var(--color-text-secondary);
            line-height: 1.6;
            transition: var(--transition);
        }

        .rules-list li:hover {
            border-color: var(--color-border-light);
            background: var(--color-bg-card-hover);
        }

        .rules-list li i {
            color: var(--color-primary);
            font-size: 16px;
            margin-top: 4px;
            flex-shrink: 0;
        }

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

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

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

        .faq-item .faq-q {
            padding: 18px 24px;
            font-size: 16px;
            font-weight: 600;
            color: var(--color-text);
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            transition: var(--transition);
            user-select: none;
        }

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

        .faq-item .faq-q i {
            color: var(--color-primary);
            transition: transform 0.3s ease;
            font-size: 14px;
        }

        .faq-item.active .faq-q i {
            transform: rotate(180deg);
        }

        .faq-item .faq-a {
            padding: 0 24px 18px;
            font-size: 15px;
            color: var(--color-text-secondary);
            line-height: 1.7;
            display: none;
        }

        .faq-item.active .faq-a {
            display: block;
        }

        /* ===== CTA ===== */
        .cta-section {
            background:
                linear-gradient(135deg, rgba(12, 12, 22, 0.92) 0%, rgba(26, 26, 46, 0.88) 100%),
                url('/assets/images/backpic/back-3.png') center center / cover no-repeat;
            padding: 80px 0;
            text-align: center;
            border-top: 1px solid var(--color-border);
            border-bottom: 1px solid var(--color-border);
        }

        .cta-section h2 {
            font-size: 36px;
            font-weight: 800;
            margin-bottom: 14px;
        }

        .cta-section p {
            font-size: 17px;
            color: var(--color-text-secondary);
            max-width: 520px;
            margin: 0 auto 28px;
        }

        .cta-section .btn-cta-lg {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 16px 40px;
            font-size: 17px;
            font-weight: 700;
            background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
            color: #0c0c16;
            border-radius: var(--radius-sm);
            transition: var(--transition);
            cursor: pointer;
            border: none;
            box-shadow: 0 6px 24px rgba(212, 168, 75, 0.3);
        }

        .cta-section .btn-cta-lg:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 40px rgba(212, 168, 75, 0.4);
            color: #0c0c16;
        }

        @media (max-width: 768px) {
            .cta-section h2 {
                font-size: 26px;
            }
            .cta-section .btn-cta-lg {
                padding: 14px 28px;
                font-size: 15px;
            }
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--color-bg-alt);
            border-top: 1px solid var(--color-border);
            padding: 60px 0 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.8fr 1fr 1fr 1.2fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid var(--color-border);
        }

        .footer-brand .logo {
            margin-bottom: 16px;
        }

        .footer-brand p {
            font-size: 14px;
            color: var(--color-text-muted);
            line-height: 1.7;
            max-width: 320px;
        }

        .footer-col h4 {
            font-size: 16px;
            font-weight: 700;
            color: var(--color-text);
            margin-bottom: 18px;
        }

        .footer-col a {
            display: block;
            font-size: 14px;
            color: var(--color-text-muted);
            padding: 5px 0;
            transition: var(--transition);
        }

        .footer-col a:hover {
            color: var(--color-primary);
            padding-left: 4px;
        }

        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 24px 0;
            font-size: 13px;
            color: var(--color-text-muted);
            flex-wrap: wrap;
            gap: 12px;
        }

        .footer-bottom a {
            color: var(--color-primary);
        }

        @media (max-width: 900px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
            .footer-brand {
                grid-column: 1 / -1;
            }
        }

        @media (max-width: 520px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

        /* ===== Responsive Nav ===== */
        @media (max-width: 768px) {
            .nav-main {
                display: none;
            }
            .menu-toggle {
                display: flex;
            }
            .nav-actions .btn-cta span {
                display: none;
            }
            .nav-actions .btn-cta {
                padding: 10px 14px;
            }
            .mobile-nav {
                display: flex;
            }
        }

        @media (min-width: 769px) {
            .mobile-nav {
                display: none !important;
            }
        }

        /* ===== Utility ===== */
        .text-center {
            text-align: center;
        }
        .mt-20 {
            margin-top: 20px;
        }
        .mb-20 {
            margin-bottom: 20px;
        }
        .gap-12 {
            gap: 12px;
        }

        /* ===== Scrollbar ===== */
        ::-webkit-scrollbar {
            width: 8px;
        }
        ::-webkit-scrollbar-track {
            background: var(--color-bg);
        }
        ::-webkit-scrollbar-thumb {
            background: var(--color-border);
            border-radius: 4px;
        }
        ::-webkit-scrollbar-thumb:hover {
            background: var(--color-border-light);
        }

        /* ===== Focus ===== */
        a:focus-visible,
        button:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--color-primary);
            outline-offset: 2px;
        }

        /* ===== Animations ===== */
        @keyframes fadeUp {
            from {
                opacity: 0;
                transform: translateY(24px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .animate-in {
            animation: fadeUp 0.6s ease forwards;
        }

        .delay-1 {
            animation-delay: 0.1s;
        }
        .delay-2 {
            animation-delay: 0.2s;
        }
        .delay-3 {
            animation-delay: 0.3s;
        }
        .delay-4 {
            animation-delay: 0.4s;
        }