/* roulang page: index */
/* ===== Design Variables ===== */
        :root {
            --primary: #6366F1;
            --primary-dark: #4F46E5;
            --primary-light: #818CF8;
            --accent: #F59E0B;
            --accent-dark: #D97706;
            --accent-light: #FBBF24;
            --bg-dark: #0B0F1A;
            --bg-darker: #070A12;
            --bg-card: #111827;
            --bg-card-hover: #1E293B;
            --bg-section: #0F1320;
            --bg-light: #F8FAFC;
            --bg-white: #FFFFFF;
            --text-white: #FFFFFF;
            --text-primary: #F1F5F9;
            --text-secondary: #94A3B8;
            --text-muted: #64748B;
            --text-dark: #1E293B;
            --text-dark-secondary: #475569;
            --border-color: rgba(99, 102, 241, 0.15);
            --border-light: rgba(255, 255, 255, 0.08);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.25);
            --shadow-md: 0 8px 30px rgba(0, 0, 0, 0.35);
            --shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.5);
            --shadow-glow: 0 0 30px rgba(99, 102, 241, 0.15);
            --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --max-width: 1200px;
            --header-height: 76px;
        }

        /* ===== Base Reset ===== */
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-primary);
            background: var(--bg-dark);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }
        img { max-width: 100%; height: auto; display: block; }
        a { color: inherit; text-decoration: none; transition: var(--transition); }
        button { font: inherit; cursor: pointer; border: none; background: none; transition: var(--transition); }
        input, textarea { font: inherit; border: none; outline: none; }
        ul, ol { list-style: none; }
        h1, h2, h3, h4, h5, h6 { line-height: 1.25; font-weight: 700; }
        .container {
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }

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

        /* ===== Header & Nav ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--header-height);
            background: rgba(11, 15, 26, 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, 15, 26, 0.95); box-shadow: var(--shadow-sm); }
        .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: 22px;
            font-weight: 800;
            color: var(--text-white);
            letter-spacing: -0.5px;
        }
        .logo-icon {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            border-radius: var(--radius-sm);
            font-size: 18px;
            color: #fff;
        }
        .logo span { background: linear-gradient(135deg, var(--text-white), var(--primary-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 {
            display: flex;
            align-items: center;
            gap: 6px;
            padding: 8px 18px;
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-weight: 500;
            color: var(--text-secondary);
            transition: var(--transition);
            position: relative;
        }
        .nav-main a:hover { color: var(--text-white); background: rgba(255, 255, 255, 0.06); }
        .nav-main a.active {
            color: var(--text-white);
            background: rgba(99, 102, 241, 0.15);
        }
        .nav-main a.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: var(--primary);
            border-radius: 2px;
        }
        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 24px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff !important;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 14px;
            box-shadow: 0 4px 15px rgba(99, 102, 241, 0.3);
            transition: var(--transition);
        }
        .nav-cta:hover { transform: translateY(-2px); box-shadow: 0 8px 25px rgba(99, 102, 241, 0.4); background: linear-gradient(135deg, var(--primary-light), var(--primary)); }
        .menu-toggle { display: none; flex-direction: column; gap: 5px; padding: 8px; cursor: pointer; }
        .menu-toggle span { display: block; width: 24px; height: 2px; background: var(--text-white); border-radius: 2px; transition: var(--transition); }
        .menu-toggle.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
        .menu-toggle.active span:nth-child(2) { opacity: 0; }
        .menu-toggle.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

        /* ===== Hero ===== */
        .hero {
            position: relative;
            min-height: 100vh;
            display: flex;
            align-items: center;
            padding: 120px 0 80px;
            overflow: hidden;
            background: var(--bg-dark);
        }
        .hero-bg {
            position: absolute;
            inset: 0;
            z-index: 0;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            opacity: 0.35;
            transform: scale(1.05);
            animation: heroParallax 20s ease-in-out infinite alternate;
        }
        @keyframes heroParallax {
            0% { transform: scale(1.05) translate(0, 0); }
            100% { transform: scale(1.1) translate(-10px, -10px); }
        }
        .hero-overlay {
            position: absolute;
            inset: 0;
            z-index: 1;
            background: linear-gradient(135deg, rgba(11, 15, 26, 0.92) 0%, rgba(11, 15, 26, 0.7) 50%, rgba(99, 102, 241, 0.15) 100%);
        }
        .hero-glow {
            position: absolute;
            top: -30%;
            right: -20%;
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(99, 102, 241, 0.12) 0%, transparent 70%);
            z-index: 1;
            animation: glowPulse 6s ease-in-out infinite alternate;
        }
        @keyframes glowPulse {
            0% { opacity: 0.5; transform: scale(1); }
            100% { opacity: 1; transform: scale(1.2); }
        }
        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 780px;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 16px;
            background: rgba(99, 102, 241, 0.15);
            border: 1px solid rgba(99, 102, 241, 0.25);
            border-radius: 50px;
            font-size: 13px;
            font-weight: 500;
            color: var(--primary-light);
            margin-bottom: 24px;
            animation: fadeInUp 0.6s ease-out;
        }
        .hero-badge i { font-size: 12px; }
        .hero-title {
            font-size: clamp(36px, 7vw, 68px);
            font-weight: 900;
            color: var(--text-white);
            line-height: 1.08;
            letter-spacing: -1.5px;
            margin-bottom: 20px;
            animation: fadeInUp 0.6s ease-out 0.1s both;
        }
        .hero-title span { background: linear-gradient(135deg, var(--primary-light), var(--accent)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
        .hero-desc {
            font-size: clamp(16px, 2vw, 20px);
            color: var(--text-secondary);
            line-height: 1.7;
            max-width: 600px;
            margin-bottom: 36px;
            animation: fadeInUp 0.6s ease-out 0.2s both;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            animation: fadeInUp 0.6s ease-out 0.3s both;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 32px;
            border-radius: var(--radius-sm);
            font-size: 16px;
            font-weight: 600;
            transition: var(--transition);
            cursor: pointer;
            border: none;
        }
        .btn-primary {
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            box-shadow: 0 4px 20px rgba(99, 102, 241, 0.35);
        }
        .btn-primary:hover { transform: translateY(-3px); box-shadow: 0 8px 35px rgba(99, 102, 241, 0.5); }
        .btn-outline {
            background: transparent;
            color: var(--text-white);
            border: 2px solid rgba(255, 255, 255, 0.15);
        }
        .btn-outline:hover { border-color: var(--primary); background: rgba(99, 102, 241, 0.1); transform: translateY(-3px); }
        .btn-lg { padding: 16px 40px; font-size: 17px; }
        .hero-stats {
            display: flex;
            gap: 40px;
            margin-top: 50px;
            padding-top: 30px;
            border-top: 1px solid var(--border-light);
            animation: fadeInUp 0.6s ease-out 0.4s both;
        }
        .hero-stat-item h3 { font-size: 28px; font-weight: 800; color: var(--text-white); }
        .hero-stat-item h3 span { color: var(--accent); }
        .hero-stat-item p { font-size: 14px; color: var(--text-muted); margin-top: 2px; }

        @keyframes fadeInUp {
            from { opacity: 0; transform: translateY(30px); }
            to { opacity: 1; transform: translateY(0); }
        }

        /* ===== Sections ===== */
        .section {
            padding: 90px 0;
            position: relative;
        }
        .section-alt { background: var(--bg-section); }
        .section-dark { background: var(--bg-darker); }
        .section-header {
            text-align: center;
            max-width: 680px;
            margin: 0 auto 56px;
        }
        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 4px 14px;
            background: rgba(99, 102, 241, 0.1);
            border: 1px solid rgba(99, 102, 241, 0.15);
            border-radius: 50px;
            font-size: 12px;
            font-weight: 600;
            color: var(--primary-light);
            text-transform: uppercase;
            letter-spacing: 1px;
            margin-bottom: 16px;
        }
        .section-title {
            font-size: clamp(28px, 4vw, 42px);
            font-weight: 800;
            color: var(--text-white);
            letter-spacing: -0.5px;
            margin-bottom: 16px;
        }
        .section-title span { background: linear-gradient(135deg, var(--primary-light), var(--accent)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
        .section-desc {
            font-size: 17px;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* ===== Features / 平台优势 ===== */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .feature-card {
            background: var(--bg-card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            padding: 36px 28px;
            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(--primary), var(--accent));
            opacity: 0;
            transition: var(--transition);
        }
        .feature-card:hover { transform: translateY(-8px); border-color: rgba(99, 102, 241, 0.2); box-shadow: var(--shadow-md); }
        .feature-card:hover::before { opacity: 1; }
        .feature-icon {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 56px;
            height: 56px;
            background: rgba(99, 102, 241, 0.12);
            border-radius: var(--radius-md);
            font-size: 24px;
            color: var(--primary-light);
            margin-bottom: 20px;
            transition: var(--transition);
        }
        .feature-card:hover .feature-icon { background: rgba(99, 102, 241, 0.2); transform: scale(1.05); }
        .feature-card h3 { font-size: 20px; font-weight: 700; color: var(--text-white); margin-bottom: 10px; }
        .feature-card p { font-size: 15px; color: var(--text-secondary); line-height: 1.7; }

        /* ===== Games / 热门游戏 ===== */
        .games-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .game-card {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border-light);
            transition: var(--transition);
            cursor: pointer;
        }
        .game-card:hover { transform: translateY(-8px); border-color: rgba(99, 102, 241, 0.2); box-shadow: var(--shadow-md); }
        .game-card-cover {
            position: relative;
            aspect-ratio: 16 / 10;
            overflow: hidden;
            background: var(--bg-darker);
        }
        .game-card-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.6s ease;
        }
        .game-card:hover .game-card-cover img { transform: scale(1.08); }
        .game-card-tag {
            position: absolute;
            top: 12px;
            left: 12px;
            padding: 4px 12px;
            background: rgba(99, 102, 241, 0.85);
            backdrop-filter: blur(8px);
            border-radius: 50px;
            font-size: 11px;
            font-weight: 600;
            color: #fff;
            letter-spacing: 0.5px;
        }
        .game-card-body { padding: 20px 20px 24px; }
        .game-card-body h3 { font-size: 18px; font-weight: 700; color: var(--text-white); margin-bottom: 6px; }
        .game-card-body p { font-size: 14px; color: var(--text-secondary); line-height: 1.6; margin-bottom: 14px; }
        .game-card-meta { display: flex; align-items: center; gap: 16px; font-size: 13px; color: var(--text-muted); }
        .game-card-meta i { margin-right: 4px; }
        .game-card-meta .hot { color: var(--accent); font-weight: 600; }

        /* ===== Latest Posts / CMS ===== */
        .posts-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }
        .post-card {
            display: flex;
            gap: 20px;
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 20px;
            border: 1px solid var(--border-light);
            transition: var(--transition);
        }
        .post-card:hover { border-color: rgba(99, 102, 241, 0.2); transform: translateY(-4px); box-shadow: var(--shadow-sm); }
        .post-card-thumb {
            flex-shrink: 0;
            width: 120px;
            height: 90px;
            border-radius: var(--radius-sm);
            overflow: hidden;
            background: var(--bg-darker);
        }
        .post-card-thumb img { width: 100%; height: 100%; object-fit: cover; }
        .post-card-content { flex: 1; min-width: 0; }
        .post-card-category {
            display: inline-block;
            padding: 2px 10px;
            background: rgba(99, 102, 241, 0.12);
            border-radius: 50px;
            font-size: 11px;
            font-weight: 600;
            color: var(--primary-light);
            margin-bottom: 6px;
        }
        .post-card-content h3 { font-size: 16px; font-weight: 700; color: var(--text-white); margin-bottom: 6px; line-height: 1.4; }
        .post-card-content h3 a { color: inherit; }
        .post-card-content h3 a:hover { color: var(--primary-light); }
        .post-card-content p { font-size: 14px; color: var(--text-secondary); line-height: 1.6; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
        .post-card-time { font-size: 12px; color: var(--text-muted); margin-top: 8px; display: flex; align-items: center; gap: 6px; }
        .post-card-time i { font-size: 11px; }

        .empty-posts {
            grid-column: 1 / -1;
            text-align: center;
            padding: 60px 20px;
            color: var(--text-muted);
            font-size: 16px;
            background: var(--bg-card);
            border-radius: var(--radius-md);
            border: 1px dashed var(--border-light);
        }

        /* ===== Stats / 数据 ===== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .stat-card {
            text-align: center;
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            padding: 36px 20px;
            border: 1px solid var(--border-light);
            transition: var(--transition);
        }
        .stat-card:hover { border-color: rgba(99, 102, 241, 0.2); transform: translateY(-4px); }
        .stat-card .stat-number { font-size: 36px; font-weight: 900; color: var(--text-white); margin-bottom: 4px; }
        .stat-card .stat-number span { color: var(--accent); }
        .stat-card .stat-label { font-size: 15px; color: var(--text-secondary); }
        .stat-card .stat-icon { font-size: 28px; color: var(--primary-light); margin-bottom: 12px; }

        /* ===== Steps / 流程 ===== */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            position: relative;
        }
        .steps-grid::before {
            content: '';
            position: absolute;
            top: 40px;
            left: 60px;
            right: 60px;
            height: 2px;
            background: linear-gradient(90deg, var(--primary), var(--accent), var(--primary));
            opacity: 0.2;
        }
        .step-card {
            text-align: center;
            position: relative;
            z-index: 1;
        }
        .step-number {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 80px;
            height: 80px;
            margin: 0 auto 20px;
            background: linear-gradient(135deg, rgba(99, 102, 241, 0.15), rgba(245, 158, 11, 0.1));
            border: 2px solid rgba(99, 102, 241, 0.2);
            border-radius: 50%;
            font-size: 28px;
            font-weight: 900;
            color: var(--primary-light);
            transition: var(--transition);
        }
        .step-card:hover .step-number { border-color: var(--primary); box-shadow: 0 0 30px rgba(99, 102, 241, 0.2); transform: scale(1.05); }
        .step-card h3 { font-size: 18px; font-weight: 700; color: var(--text-white); margin-bottom: 8px; }
        .step-card p { font-size: 14px; color: var(--text-secondary); line-height: 1.6; max-width: 220px; margin: 0 auto; }

        /* ===== FAQ ===== */
        .faq-list { max-width: 800px; margin: 0 auto; display: flex; flex-direction: column; gap: 12px; }
        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover { border-color: rgba(99, 102, 241, 0.15); }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 24px;
            cursor: pointer;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-white);
            background: transparent;
            width: 100%;
            text-align: left;
            gap: 16px;
        }
        .faq-question i { color: var(--primary-light); font-size: 14px; transition: var(--transition); flex-shrink: 0; }
        .faq-item.active .faq-question i { transform: rotate(180deg); }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.4s ease;
            padding: 0 24px;
            color: var(--text-secondary);
            font-size: 15px;
            line-height: 1.7;
        }
        .faq-item.active .faq-answer { max-height: 300px; padding: 0 24px 20px; }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--bg-card), var(--bg-section));
            border-top: 1px solid var(--border-light);
            border-bottom: 1px solid var(--border-light);
            padding: 80px 0;
            text-align: center;
        }
        .cta-content { max-width: 640px; margin: 0 auto; }
        .cta-content h2 { font-size: clamp(26px, 4vw, 40px); font-weight: 800; color: var(--text-white); margin-bottom: 16px; }
        .cta-content p { font-size: 17px; color: var(--text-secondary); margin-bottom: 32px; }
        .cta-actions { display: flex; flex-wrap: wrap; justify-content: center; gap: 16px; }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-darker);
            border-top: 1px solid var(--border-light);
            padding: 60px 0 30px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-brand .logo { margin-bottom: 14px; }
        .footer-brand p { font-size: 14px; color: var(--text-secondary); line-height: 1.7; max-width: 320px; }
        .footer-col h4 { font-size: 15px; font-weight: 700; color: var(--text-white); margin-bottom: 16px; }
        .footer-col a {
            display: block;
            font-size: 14px;
            color: var(--text-secondary);
            padding: 4px 0;
            transition: var(--transition);
        }
        .footer-col a:hover { color: var(--primary-light); padding-left: 4px; }
        .footer-bottom {
            border-top: 1px solid var(--border-light);
            padding-top: 24px;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            font-size: 13px;
            color: var(--text-muted);
        }
        .footer-bottom a { color: var(--text-secondary); }
        .footer-bottom a:hover { color: var(--primary-light); }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .features-grid { grid-template-columns: repeat(2, 1fr); }
            .games-grid { grid-template-columns: repeat(2, 1fr); }
            .stats-grid { grid-template-columns: repeat(2, 1fr); }
            .steps-grid { grid-template-columns: repeat(2, 1fr); }
            .steps-grid::before { display: none; }
            .footer-grid { grid-template-columns: repeat(2, 1fr); }
            .posts-grid { grid-template-columns: 1fr; }
        }

        @media (max-width: 768px) {
            :root { --header-height: 64px; }
            .nav-main { display: none; }
            .nav-main.open {
                display: flex;
                flex-direction: column;
                position: absolute;
                top: var(--header-height);
                left: 0;
                right: 0;
                background: rgba(11, 15, 26, 0.98);
                backdrop-filter: blur(20px);
                border-bottom: 1px solid var(--border-light);
                padding: 16px 24px;
                gap: 4px;
            }
            .nav-main.open a { padding: 12px 16px; width: 100%; }
            .nav-main.open .nav-cta { margin-top: 8px; justify-content: center; }
            .menu-toggle { display: flex; }
            .hero { min-height: auto; padding: 100px 0 60px; }
            .hero-stats { gap: 24px; flex-wrap: wrap; }
            .hero-stat-item h3 { font-size: 22px; }
            .section { padding: 60px 0; }
            .features-grid { grid-template-columns: 1fr; }
            .games-grid { grid-template-columns: 1fr; }
            .stats-grid { grid-template-columns: repeat(2, 1fr); }
            .steps-grid { grid-template-columns: 1fr; gap: 32px; }
            .step-card p { max-width: 100%; }
            .post-card { flex-direction: column; }
            .post-card-thumb { width: 100%; height: 160px; }
            .footer-grid { grid-template-columns: 1fr; gap: 24px; }
            .footer-bottom { flex-direction: column; text-align: center; }
            .cta-section { padding: 50px 0; }
        }

        @media (max-width: 520px) {
            .container { padding: 0 16px; }
            .hero-title { font-size: 28px; }
            .hero-desc { font-size: 15px; }
            .hero-actions { flex-direction: column; }
            .btn { width: 100%; justify-content: center; }
            .hero-stats { flex-direction: column; gap: 16px; }
            .stats-grid { grid-template-columns: 1fr; }
            .section-title { font-size: 24px; }
            .games-grid { grid-template-columns: 1fr; }
            .features-grid { grid-template-columns: 1fr; }
            .post-card-thumb { height: 120px; }
            .faq-question { font-size: 14px; padding: 14px 16px; }
            .faq-answer { font-size: 14px; padding: 0 16px; }
            .faq-item.active .faq-answer { padding: 0 16px 16px; }
            .footer-grid { grid-template-columns: 1fr; }
            .stat-card .stat-number { font-size: 28px; }
        }

        /* ===== Utility ===== */
        .text-gradient { background: linear-gradient(135deg, var(--primary-light), var(--accent)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
        .text-center { text-align: center; }
        .mt-8 { margin-top: 8px; }
        .mt-16 { margin-top: 16px; }
        .mt-24 { margin-top: 24px; }
        .mt-32 { margin-top: 32px; }
        .gap-8 { gap: 8px; }
        .gap-12 { gap: 12px; }
        .flex-center { display: flex; align-items: center; justify-content: center; }

/* roulang page: article */
/* ===== Design Variables ===== */
    :root {
        --primary: #e74c3c;
        --primary-dark: #c0392b;
        --primary-light: #fadbd8;
        --primary-gradient: linear-gradient(135deg, #e74c3c 0%, #e67e22 100%);
        --secondary: #2c3e50;
        --secondary-light: #34495e;
        --accent: #f39c12;
        --accent-gradient: linear-gradient(135deg, #f39c12 0%, #e67e22 100%);
        --bg: #0f0f1a;
        --bg-card: #1a1a2e;
        --bg-card-hover: #222240;
        --bg-section-alt: #13132a;
        --text: #f0f0f5;
        --text-muted: #8888aa;
        --text-light: #c0c0d0;
        --border: #2a2a4a;
        --border-light: #3a3a5a;
        --radius: 16px;
        --radius-sm: 8px;
        --radius-lg: 24px;
        --shadow: 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(231, 76, 60, 0.15);
        --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        --font: 'Segoe UI', system-ui, -apple-system, 'PingFang SC', 'Microsoft YaHei', sans-serif;
        --container: 1200px;
        --header-h: 72px;
    }

    /* ===== Reset & Base ===== */
    *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
    html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
    body {
        font-family: var(--font);
        background: var(--bg);
        color: var(--text);
        line-height: 1.7;
        font-size: 16px;
        overflow-x: hidden;
    }
    a { color: var(--primary); text-decoration: none; transition: var(--transition); }
    a:hover { color: var(--accent); }
    img { max-width: 100%; height: auto; display: block; }
    button, input, textarea { font-family: inherit; font-size: inherit; border: none; outline: none; }
    ul, ol { list-style: none; }
    h1, h2, h3, h4, h5, h6 { line-height: 1.3; font-weight: 700; }

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

    /* ===== Header / Nav ===== */
    .site-header {
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: var(--header-h);
        background: rgba(15, 15, 26, 0.92);
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
        border-bottom: 1px solid var(--border);
        z-index: 1000;
        transition: var(--transition);
    }
    .site-header.scrolled { box-shadow: 0 4px 30px rgba(0,0,0,0.5); }
    .header-inner {
        display: flex;
        align-items: center;
        justify-content: space-between;
        height: var(--header-h);
        max-width: var(--container);
        margin: 0 auto;
        padding: 0 24px;
    }
    .logo {
        display: flex;
        align-items: center;
        gap: 10px;
        font-size: 24px;
        font-weight: 800;
        color: var(--text) !important;
        letter-spacing: -0.5px;
        text-decoration: none;
    }
    .logo-icon {
        display: flex;
        align-items: center;
        justify-content: center;
        width: 40px;
        height: 40px;
        background: var(--primary-gradient);
        border-radius: var(--radius-sm);
        color: #fff;
        font-size: 20px;
        box-shadow: 0 4px 15px rgba(231, 76, 60, 0.3);
    }
    .logo span:last-child { background: var(--primary-gradient); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
    .nav-main { display: flex; align-items: center; gap: 8px; }
    .nav-main a {
        padding: 8px 20px;
        border-radius: var(--radius-sm);
        color: var(--text-light);
        font-weight: 500;
        font-size: 15px;
        transition: var(--transition);
        position: relative;
        text-decoration: none;
    }
    .nav-main a:hover { color: var(--text); background: rgba(255,255,255,0.06); }
    .nav-main a.active {
        color: #fff;
        background: var(--primary-gradient);
        box-shadow: 0 4px 20px rgba(231, 76, 60, 0.3);
    }
    .nav-main a.nav-cta {
        background: var(--accent-gradient);
        color: #fff;
        padding: 8px 22px;
        border-radius: 50px;
        font-weight: 600;
        box-shadow: 0 4px 20px rgba(243, 156, 18, 0.3);
    }
    .nav-main a.nav-cta:hover { transform: translateY(-2px); box-shadow: 0 8px 30px rgba(243, 156, 18, 0.4); }
    .nav-toggle {
        display: none;
        background: none;
        color: var(--text);
        font-size: 26px;
        padding: 8px 12px;
        cursor: pointer;
        border-radius: var(--radius-sm);
        transition: var(--transition);
    }
    .nav-toggle:hover { background: rgba(255,255,255,0.06); }

    @media (max-width: 768px) {
        .nav-toggle { display: block; }
        .nav-main {
            position: fixed;
            top: var(--header-h);
            left: 0;
            width: 100%;
            background: rgba(15, 15, 26, 0.98);
            backdrop-filter: blur(20px);
            flex-direction: column;
            padding: 16px 24px 24px;
            gap: 6px;
            border-bottom: 1px solid var(--border);
            transform: translateY(-110%);
            opacity: 0;
            pointer-events: none;
            transition: var(--transition);
            box-shadow: var(--shadow-lg);
        }
        .nav-main.open { transform: translateY(0); opacity: 1; pointer-events: all; }
        .nav-main a { width: 100%; text-align: center; padding: 12px 20px; font-size: 16px; }
        .nav-main a.nav-cta { margin-top: 4px; }
    }

    /* ===== Page Banner ===== */
    .page-banner {
        margin-top: var(--header-h);
        padding: 80px 0 60px;
        background: linear-gradient(135deg, #0f0f1a 0%, #1a1a2e 50%, #0f0f1a 100%);
        position: relative;
        overflow: hidden;
        border-bottom: 1px solid var(--border);
    }
    .page-banner::before {
        content: '';
        position: absolute;
        inset: 0;
        background: url('/assets/images/backpic/back-2.png') center/cover no-repeat;
        opacity: 0.08;
        pointer-events: none;
    }
    .page-banner .container {
        position: relative;
        z-index: 1;
        text-align: center;
    }
    .page-banner h1 {
        font-size: 36px;
        font-weight: 800;
        color: #fff;
        margin-bottom: 12px;
        letter-spacing: -0.5px;
    }
    .page-banner .breadcrumb {
        display: flex;
        align-items: center;
        justify-content: center;
        gap: 10px;
        color: var(--text-muted);
        font-size: 14px;
        flex-wrap: wrap;
    }
    .page-banner .breadcrumb a { color: var(--text-muted); }
    .page-banner .breadcrumb a:hover { color: var(--primary); }
    .page-banner .breadcrumb .sep { color: var(--border-light); }
    .page-banner .breadcrumb .current { color: var(--primary); font-weight: 600; }
    .page-banner .meta-row {
        display: flex;
        align-items: center;
        justify-content: center;
        gap: 20px;
        margin-top: 16px;
        font-size: 14px;
        color: var(--text-muted);
        flex-wrap: wrap;
    }
    .page-banner .meta-row i { margin-right: 6px; color: var(--primary); }
    .page-banner .meta-row .tag {
        display: inline-block;
        padding: 4px 14px;
        background: var(--primary-gradient);
        border-radius: 50px;
        color: #fff;
        font-size: 12px;
        font-weight: 600;
    }
    @media (max-width: 768px) {
        .page-banner { padding: 60px 0 40px; }
        .page-banner h1 { font-size: 26px; }
        .page-banner .meta-row { gap: 12px; font-size: 13px; }
    }

    /* ===== Article Content ===== */
    .article-section {
        padding: 60px 0 80px;
    }
    .article-layout {
        display: grid;
        grid-template-columns: 1fr 340px;
        gap: 40px;
        align-items: start;
    }
    .article-main {
        background: var(--bg-card);
        border-radius: var(--radius);
        border: 1px solid var(--border);
        padding: 40px;
        box-shadow: var(--shadow);
    }
    .article-main .featured-image {
        width: 100%;
        border-radius: var(--radius-sm);
        margin-bottom: 32px;
        overflow: hidden;
        aspect-ratio: 16/9;
        background: var(--bg-section-alt);
    }
    .article-main .featured-image img {
        width: 100%;
        height: 100%;
        object-fit: cover;
        transition: transform 0.6s ease;
    }
    .article-main .featured-image:hover img { transform: scale(1.03); }
    .article-body {
        font-size: 17px;
        line-height: 1.9;
        color: var(--text-light);
    }
    .article-body h2 {
        font-size: 26px;
        color: #fff;
        margin: 40px 0 16px;
        padding-bottom: 12px;
        border-bottom: 2px solid var(--border);
    }
    .article-body h3 {
        font-size: 22px;
        color: #fff;
        margin: 32px 0 12px;
    }
    .article-body p { margin-bottom: 20px; }
    .article-body p:last-child { margin-bottom: 0; }
    .article-body ul, .article-body ol {
        margin: 16px 0 24px;
        padding-left: 24px;
    }
    .article-body ul li, .article-body ol li {
        margin-bottom: 10px;
        position: relative;
    }
    .article-body ul li::before {
        content: '\f00c';
        font-family: 'Font Awesome 6 Free';
        font-weight: 900;
        position: absolute;
        left: -24px;
        color: var(--primary);
        font-size: 12px;
        top: 4px;
    }
    .article-body ol { list-style: decimal; }
    .article-body ol li { padding-left: 4px; }
    .article-body ol li::marker { color: var(--primary); font-weight: 600; }
    .article-body blockquote {
        border-left: 4px solid var(--primary);
        background: rgba(231, 76, 60, 0.06);
        padding: 20px 24px;
        margin: 24px 0;
        border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
        color: var(--text-light);
        font-style: italic;
    }
    .article-body blockquote p { margin-bottom: 0; }
    .article-body a { color: var(--primary); text-decoration: underline; text-underline-offset: 3px; }
    .article-body a:hover { color: var(--accent); }
    .article-body img {
        border-radius: var(--radius-sm);
        margin: 24px 0;
        box-shadow: var(--shadow);
    }
    .article-body .highlight-box {
        background: var(--bg-section-alt);
        border: 1px solid var(--border);
        border-radius: var(--radius-sm);
        padding: 24px;
        margin: 24px 0;
    }
    .article-body .highlight-box h4 { color: var(--primary); margin-bottom: 8px; }

    /* Article Sidebar */
    .article-sidebar {
        display: flex;
        flex-direction: column;
        gap: 24px;
    }
    .sidebar-card {
        background: var(--bg-card);
        border: 1px solid var(--border);
        border-radius: var(--radius);
        padding: 28px;
        box-shadow: var(--shadow);
    }
    .sidebar-card h3 {
        font-size: 18px;
        color: #fff;
        margin-bottom: 16px;
        display: flex;
        align-items: center;
        gap: 10px;
    }
    .sidebar-card h3 i { color: var(--primary); }
    .sidebar-list li {
        padding: 10px 0;
        border-bottom: 1px solid var(--border);
    }
    .sidebar-list li:last-child { border-bottom: none; }
    .sidebar-list a {
        color: var(--text-light);
        font-size: 14px;
        display: flex;
        align-items: center;
        gap: 10px;
        transition: var(--transition);
    }
    .sidebar-list a:hover { color: var(--primary); padding-left: 6px; }
    .sidebar-list a i { color: var(--primary); font-size: 12px; }
    .sidebar-cta {
        text-align: center;
    }
    .sidebar-cta .btn {
        display: inline-block;
        padding: 12px 32px;
        background: var(--primary-gradient);
        color: #fff;
        border-radius: 50px;
        font-weight: 600;
        font-size: 15px;
        box-shadow: 0 4px 20px rgba(231, 76, 60, 0.3);
        transition: var(--transition);
        text-decoration: none;
    }
    .sidebar-cta .btn:hover { transform: translateY(-2px); box-shadow: 0 8px 30px rgba(231, 76, 60, 0.4); }

    @media (max-width: 1024px) {
        .article-layout { grid-template-columns: 1fr; }
        .article-sidebar { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
    }
    @media (max-width: 768px) {
        .article-section { padding: 40px 0 60px; }
        .article-main { padding: 24px; }
        .article-body { font-size: 16px; }
        .article-body h2 { font-size: 22px; }
        .article-body h3 { font-size: 19px; }
        .article-sidebar { grid-template-columns: 1fr; }
    }

    /* ===== Related Section ===== */
    .related-section {
        padding: 60px 0;
        background: var(--bg-section-alt);
        border-top: 1px solid var(--border);
    }
    .related-section .section-title {
        font-size: 28px;
        color: #fff;
        margin-bottom: 32px;
        text-align: center;
    }
    .related-section .section-title i { color: var(--primary); margin-right: 10px; }
    .related-grid {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 24px;
    }
    .related-card {
        background: var(--bg-card);
        border: 1px solid var(--border);
        border-radius: var(--radius);
        overflow: hidden;
        transition: var(--transition);
        text-decoration: none;
        color: var(--text);
    }
    .related-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: var(--primary); }
    .related-card .card-img {
        aspect-ratio: 16/9;
        overflow: hidden;
        background: var(--bg-section-alt);
    }
    .related-card .card-img img {
        width: 100%;
        height: 100%;
        object-fit: cover;
        transition: transform 0.6s ease;
    }
    .related-card:hover .card-img img { transform: scale(1.05); }
    .related-card .card-body { padding: 20px; }
    .related-card .card-body h4 { font-size: 16px; color: #fff; margin-bottom: 8px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
    .related-card .card-body p { font-size: 13px; color: var(--text-muted); display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
    .related-card .card-meta { display: flex; align-items: center; gap: 12px; margin-top: 10px; font-size: 12px; color: var(--text-muted); }
    .related-card .card-meta i { color: var(--primary); margin-right: 4px; }

    @media (max-width: 768px) {
        .related-grid { grid-template-columns: 1fr 1fr; }
    }
    @media (max-width: 520px) {
        .related-grid { grid-template-columns: 1fr; }
    }

    /* ===== Not Found ===== */
    .not-found-box {
        text-align: center;
        padding: 60px 20px;
    }
    .not-found-box i {
        font-size: 72px;
        color: var(--text-muted);
        margin-bottom: 20px;
        opacity: 0.5;
    }
    .not-found-box h2 { font-size: 28px; color: #fff; margin-bottom: 12px; }
    .not-found-box p { color: var(--text-muted); margin-bottom: 24px; font-size: 16px; }
    .not-found-box .btn {
        display: inline-block;
        padding: 12px 36px;
        background: var(--primary-gradient);
        color: #fff;
        border-radius: 50px;
        font-weight: 600;
        text-decoration: none;
        box-shadow: 0 4px 20px rgba(231, 76, 60, 0.3);
        transition: var(--transition);
    }
    .not-found-box .btn:hover { transform: translateY(-2px); box-shadow: 0 8px 30px rgba(231, 76, 60, 0.4); }

    /* ===== Footer ===== */
    .site-footer {
        background: #0a0a16;
        border-top: 1px solid var(--border);
        padding: 60px 0 30px;
    }
    .footer-grid {
        display: grid;
        grid-template-columns: 2fr 1fr 1fr 1fr;
        gap: 40px;
        margin-bottom: 40px;
    }
    .footer-brand .logo { font-size: 22px; margin-bottom: 16px; }
    .footer-brand p { color: var(--text-muted); font-size: 14px; line-height: 1.8; max-width: 360px; }
    .footer-col h4 { color: #fff; font-size: 16px; margin-bottom: 16px; }
    .footer-col a {
        display: block;
        color: var(--text-muted);
        font-size: 14px;
        padding: 6px 0;
        transition: var(--transition);
        text-decoration: none;
    }
    .footer-col a:hover { color: var(--primary); padding-left: 4px; }
    .footer-bottom {
        border-top: 1px solid var(--border);
        padding-top: 24px;
        display: flex;
        justify-content: space-between;
        align-items: center;
        flex-wrap: wrap;
        gap: 12px;
        font-size: 13px;
        color: var(--text-muted);
    }
    .footer-bottom a { color: var(--text-muted); }
    .footer-bottom a:hover { color: var(--primary); }
    @media (max-width: 768px) {
        .footer-grid { grid-template-columns: 1fr 1fr; gap: 24px; }
        .footer-brand { grid-column: 1 / -1; }
        .footer-bottom { flex-direction: column; text-align: center; }
    }
    @media (max-width: 520px) {
        .footer-grid { grid-template-columns: 1fr; }
    }

    /* ===== Scrollbar ===== */
    ::-webkit-scrollbar { width: 8px; }
    ::-webkit-scrollbar-track { background: var(--bg); }
    ::-webkit-scrollbar-thumb { background: var(--border); border-radius: 10px; }
    ::-webkit-scrollbar-thumb:hover { background: var(--border-light); }

    /* ===== Utilities ===== */
    .text-center { text-align: center; }
    .mt-16 { margin-top: 16px; }
    .mb-16 { margin-bottom: 16px; }
    .gap-8 { gap: 8px; }
    .flex-center { display: flex; align-items: center; justify-content: center; }
    .sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); border: 0; }

/* roulang page: category1 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #e74c3c;
            --primary-dark: #c0392b;
            --primary-light: #f1948a;
            --secondary: #2c3e50;
            --secondary-light: #34495e;
            --accent: #f39c12;
            --accent-light: #f1c40f;
            --bg-body: #0f171e;
            --bg-card: #1a2530;
            --bg-card-hover: #1e2d3d;
            --bg-section: #121e28;
            --bg-section-alt: #0d151c;
            --text-primary: #ecf0f1;
            --text-secondary: #bdc3c7;
            --text-muted: #7f8c8d;
            --border-color: #2c3e50;
            --border-light: #34495e;
            --radius-sm: 8px;
            --radius-md: 14px;
            --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 16px 50px rgba(0, 0, 0, 0.5);
            --shadow-glow: 0 0 30px rgba(231, 76, 60, 0.15);
            --transition: 0.35s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
            --container-w: 1200px;
            --header-h: 72px;
        }

        /* ===== Reset & Base ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
        }
        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.6;
            color: var(--text-primary);
            background: var(--bg-body);
            overflow-x: hidden;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--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;
            transition: var(--transition);
        }
        ul,
        ol {
            list-style: none;
        }
        .container {
            max-width: var(--container-w);
            margin: 0 auto;
            padding: 0 20px;
        }

        /* ===== Header / Nav ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: var(--header-h);
            background: rgba(15, 23, 30, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid rgba(44, 62, 80, 0.5);
            z-index: 1000;
            transition: var(--transition);
        }
        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 22px;
            font-weight: 700;
            color: var(--text-primary);
            letter-spacing: 0.5px;
        }
        .logo:hover {
            color: var(--primary);
        }
        .logo-icon {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            background: var(--primary);
            border-radius: 10px;
            color: #fff;
            font-size: 18px;
            box-shadow: var(--shadow-glow);
        }
        .logo span:last-child {
            background: linear-gradient(135deg, var(--primary), var(--accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .nav-main {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .nav-main a {
            display: flex;
            align-items: center;
            gap: 6px;
            padding: 10px 18px;
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-weight: 500;
            color: var(--text-secondary);
            transition: var(--transition);
            position: relative;
        }
        .nav-main a i {
            font-size: 14px;
        }
        .nav-main a:hover {
            color: var(--text-primary);
            background: rgba(231, 76, 60, 0.08);
        }
        .nav-main a.active {
            color: var(--primary);
            background: rgba(231, 76, 60, 0.12);
        }
        .nav-main a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: var(--primary);
            border-radius: 4px;
        }
        .nav-main a.nav-cta {
            background: var(--primary);
            color: #fff;
            padding: 10px 22px;
            border-radius: var(--radius-md);
            font-weight: 600;
            box-shadow: 0 4px 15px rgba(231, 76, 60, 0.3);
        }
        .nav-main a.nav-cta:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 25px rgba(231, 76, 60, 0.4);
        }
        .nav-toggle {
            display: none;
            width: 42px;
            height: 42px;
            background: rgba(255, 255, 255, 0.05);
            border-radius: var(--radius-sm);
            color: var(--text-primary);
            font-size: 22px;
            cursor: pointer;
            align-items: center;
            justify-content: center;
            border: 1px solid var(--border-color);
        }
        .nav-toggle:hover {
            background: rgba(255, 255, 255, 0.1);
        }

        /* ===== Main / Hero Banner ===== */
        .page-hero {
            position: relative;
            padding: 140px 0 90px;
            min-height: 380px;
            display: flex;
            align-items: center;
            background: var(--bg-section);
            overflow: hidden;
        }
        .page-hero-bg {
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            opacity: 0.35;
            z-index: 0;
        }
        .page-hero-bg::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15, 23, 30, 0.88) 0%, rgba(15, 23, 30, 0.4) 100%);
        }
        .page-hero .container {
            position: relative;
            z-index: 2;
            text-align: center;
        }
        .page-hero h1 {
            font-size: 46px;
            font-weight: 800;
            letter-spacing: 1px;
            margin-bottom: 18px;
            line-height: 1.2;
        }
        .page-hero h1 span {
            background: linear-gradient(135deg, var(--primary), var(--accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .page-hero p {
            font-size: 18px;
            color: var(--text-secondary);
            max-width: 680px;
            margin: 0 auto 30px;
            line-height: 1.7;
        }
        .hero-badges {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            justify-content: center;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 8px 20px;
            border-radius: 50px;
            background: rgba(231, 76, 60, 0.12);
            border: 1px solid rgba(231, 76, 60, 0.2);
            color: var(--text-secondary);
            font-size: 14px;
            font-weight: 500;
        }
        .hero-badge i {
            color: var(--primary);
        }

        /* ===== Section通用 ===== */
        .section {
            padding: 80px 0;
        }
        .section-alt {
            background: var(--bg-section-alt);
        }
        .section-header {
            text-align: center;
            margin-bottom: 52px;
        }
        .section-header h2 {
            font-size: 34px;
            font-weight: 700;
            letter-spacing: 0.5px;
            margin-bottom: 14px;
        }
        .section-header h2 i {
            color: var(--primary);
            margin-right: 8px;
        }
        .section-header p {
            color: var(--text-muted);
            font-size: 17px;
            max-width: 580px;
            margin: 0 auto;
            line-height: 1.7;
        }
        .section-divider {
            width: 60px;
            height: 4px;
            background: linear-gradient(90deg, var(--primary), var(--accent));
            border-radius: 4px;
            margin: 16px auto 0;
        }

        /* ===== 分类导航标签 ===== */
        .category-tabs {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            justify-content: center;
            margin-bottom: 40px;
        }
        .category-tab {
            padding: 10px 24px;
            border-radius: 50px;
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid var(--border-color);
            color: var(--text-secondary);
            font-size: 14px;
            font-weight: 500;
            cursor: pointer;
            transition: var(--transition);
        }
        .category-tab:hover {
            border-color: var(--primary);
            color: var(--text-primary);
            background: rgba(231, 76, 60, 0.08);
        }
        .category-tab.active {
            background: var(--primary);
            border-color: var(--primary);
            color: #fff;
            box-shadow: 0 4px 20px rgba(231, 76, 60, 0.3);
        }
        .category-tab i {
            margin-right: 6px;
        }

        /* ===== 游戏卡片网格 ===== */
        .game-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 28px;
        }
        .game-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--border-color);
            transition: var(--transition);
            cursor: pointer;
            display: flex;
            flex-direction: column;
        }
        .game-card:hover {
            transform: translateY(-6px);
            border-color: var(--primary);
            box-shadow: var(--shadow-lg), var(--shadow-glow);
            background: var(--bg-card-hover);
        }
        .game-card-img {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16 / 10;
            background: var(--bg-section);
        }
        .game-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition);
        }
        .game-card:hover .game-card-img img {
            transform: scale(1.05);
        }
        .game-card-tag {
            position: absolute;
            top: 12px;
            left: 12px;
            padding: 4px 14px;
            background: var(--primary);
            color: #fff;
            border-radius: 50px;
            font-size: 12px;
            font-weight: 600;
            box-shadow: 0 2px 10px rgba(231, 76, 60, 0.3);
        }
        .game-card-hot {
            position: absolute;
            top: 12px;
            right: 12px;
            padding: 4px 12px;
            background: var(--accent);
            color: #1a1a2e;
            border-radius: 50px;
            font-size: 12px;
            font-weight: 700;
            display: flex;
            align-items: center;
            gap: 4px;
        }
        .game-card-body {
            padding: 20px 22px 22px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .game-card-body h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--text-primary);
        }
        .game-card-body p {
            color: var(--text-muted);
            font-size: 14px;
            line-height: 1.6;
            flex: 1;
            margin-bottom: 14px;
        }
        .game-card-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            padding-top: 12px;
            border-top: 1px solid var(--border-color);
            font-size: 13px;
            color: var(--text-muted);
        }
        .game-card-meta i {
            color: var(--primary);
            margin-right: 4px;
        }
        .game-card-meta span {
            display: flex;
            align-items: center;
        }

        /* ===== 特色区块 ===== */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
            gap: 24px;
        }
        .feature-item {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 32px 28px;
            border: 1px solid var(--border-color);
            transition: var(--transition);
            text-align: center;
        }
        .feature-item:hover {
            border-color: var(--primary);
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }
        .feature-icon {
            width: 64px;
            height: 64px;
            margin: 0 auto 18px;
            background: rgba(231, 76, 60, 0.1);
            border-radius: 18px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 28px;
            color: var(--primary);
            transition: var(--transition);
        }
        .feature-item:hover .feature-icon {
            background: var(--primary);
            color: #fff;
            transform: scale(1.05);
        }
        .feature-item h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 10px;
        }
        .feature-item p {
            color: var(--text-muted);
            font-size: 14px;
            line-height: 1.7;
        }

        /* ===== 排行榜 ===== */
        .rank-list {
            max-width: 780px;
            margin: 0 auto;
        }
        .rank-item {
            display: flex;
            align-items: center;
            gap: 18px;
            padding: 16px 22px;
            background: var(--bg-card);
            border-radius: var(--radius-sm);
            border: 1px solid var(--border-color);
            margin-bottom: 12px;
            transition: var(--transition);
        }
        .rank-item:hover {
            border-color: var(--primary-light);
            background: var(--bg-card-hover);
            transform: translateX(4px);
        }
        .rank-num {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.05);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 16px;
            color: var(--text-muted);
            flex-shrink: 0;
        }
        .rank-item:nth-child(1) .rank-num {
            background: var(--accent);
            color: #1a1a2e;
        }
        .rank-item:nth-child(2) .rank-num {
            background: var(--text-muted);
            color: var(--bg-body);
        }
        .rank-item:nth-child(3) .rank-num {
            background: var(--secondary-light);
            color: var(--text-primary);
        }
        .rank-info {
            flex: 1;
            display: flex;
            align-items: center;
            gap: 14px;
        }
        .rank-info img {
            width: 52px;
            height: 52px;
            border-radius: var(--radius-sm);
            object-fit: cover;
            flex-shrink: 0;
        }
        .rank-info h4 {
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 2px;
        }
        .rank-info span {
            font-size: 13px;
            color: var(--text-muted);
        }
        .rank-score {
            font-size: 18px;
            font-weight: 700;
            color: var(--accent);
            flex-shrink: 0;
        }

        /* ===== 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-sm);
            border: 1px solid var(--border-color);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: var(--primary);
        }
        .faq-question {
            padding: 18px 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            cursor: pointer;
            font-weight: 600;
            font-size: 16px;
            color: var(--text-primary);
            transition: var(--transition);
            user-select: none;
            background: none;
            width: 100%;
            text-align: left;
        }
        .faq-question i {
            color: var(--primary);
            transition: var(--transition);
            font-size: 14px;
        }
        .faq-item.open .faq-question i {
            transform: rotate(180deg);
        }
        .faq-answer {
            padding: 0 24px 18px;
            color: var(--text-muted);
            font-size: 15px;
            line-height: 1.7;
            display: none;
        }
        .faq-item.open .faq-answer {
            display: block;
        }

        /* ===== CTA ===== */
        .cta-section {
            padding: 70px 0;
            background: var(--bg-section);
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            opacity: 0.08;
            z-index: 0;
        }
        .cta-section .container {
            position: relative;
            z-index: 2;
            text-align: center;
        }
        .cta-section h2 {
            font-size: 36px;
            font-weight: 700;
            margin-bottom: 16px;
        }
        .cta-section p {
            color: var(--text-secondary);
            font-size: 18px;
            margin-bottom: 32px;
            max-width: 560px;
            margin-left: auto;
            margin-right: auto;
        }
        .cta-buttons {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            justify-content: center;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 34px;
            border-radius: var(--radius-md);
            font-size: 16px;
            font-weight: 600;
            transition: var(--transition);
            cursor: pointer;
            border: none;
        }
        .btn-primary {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 4px 20px rgba(231, 76, 60, 0.3);
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            transform: translateY(-3px);
            box-shadow: 0 8px 30px rgba(231, 76, 60, 0.4);
            color: #fff;
        }
        .btn-outline {
            background: transparent;
            color: var(--text-primary);
            border: 2px solid var(--border-color);
        }
        .btn-outline:hover {
            border-color: var(--primary);
            color: var(--primary);
            transform: translateY(-3px);
            background: rgba(231, 76, 60, 0.05);
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-section-alt);
            border-top: 1px solid var(--border-color);
            padding: 60px 0 30px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-brand .logo {
            font-size: 20px;
            margin-bottom: 16px;
        }
        .footer-brand p {
            color: var(--text-muted);
            font-size: 14px;
            line-height: 1.7;
            max-width: 320px;
        }
        .footer-col h4 {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 18px;
            color: var(--text-primary);
        }
        .footer-col a {
            display: block;
            color: var(--text-muted);
            font-size: 14px;
            padding: 5px 0;
            transition: var(--transition);
        }
        .footer-col a:hover {
            color: var(--primary);
            padding-left: 4px;
        }
        .footer-bottom {
            padding-top: 24px;
            border-top: 1px solid var(--border-color);
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            font-size: 13px;
            color: var(--text-muted);
        }
        .footer-bottom a {
            color: var(--text-muted);
        }
        .footer-bottom a:hover {
            color: var(--primary);
        }

        /* ===== Back to top ===== */
        .back-top {
            position: fixed;
            bottom: 30px;
            right: 30px;
            width: 46px;
            height: 46px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            box-shadow: var(--shadow-md);
            z-index: 999;
            opacity: 0;
            visibility: hidden;
            transform: translateY(20px);
            transition: var(--transition);
            cursor: pointer;
            border: none;
        }
        .back-top.visible {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
        }
        .back-top:hover {
            background: var(--primary-dark);
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 30px;
            }
            .page-hero h1 {
                font-size: 36px;
            }
        }

        @media (max-width: 768px) {
            .nav-main {
                display: none;
                position: fixed;
                top: var(--header-h);
                left: 0;
                width: 100%;
                background: rgba(15, 23, 30, 0.98);
                backdrop-filter: blur(20px);
                flex-direction: column;
                padding: 20px;
                gap: 6px;
                border-bottom: 1px solid var(--border-color);
                box-shadow: var(--shadow-lg);
            }
            .nav-main.open {
                display: flex;
            }
            .nav-main a {
                width: 100%;
                justify-content: center;
                padding: 14px 18px;
                font-size: 16px;
            }
            .nav-main a.active::after {
                display: none;
            }
            .nav-main a.nav-cta {
                margin-top: 6px;
            }
            .nav-toggle {
                display: flex;
            }
            .page-hero {
                padding: 120px 0 60px;
                min-height: 320px;
            }
            .page-hero h1 {
                font-size: 28px;
            }
            .page-hero p {
                font-size: 16px;
            }
            .section {
                padding: 50px 0;
            }
            .section-header h2 {
                font-size: 26px;
            }
            .game-grid {
                grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
                gap: 20px;
            }
            .features-grid {
                grid-template-columns: 1fr 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .rank-item {
                flex-wrap: wrap;
                padding: 14px 16px;
            }
            .rank-info img {
                width: 42px;
                height: 42px;
            }
            .cta-section h2 {
                font-size: 26px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .page-hero h1 {
                font-size: 24px;
            }
            .hero-badges {
                gap: 8px;
            }
            .hero-badge {
                font-size: 12px;
                padding: 6px 14px;
            }
            .game-grid {
                grid-template-columns: 1fr;
            }
            .features-grid {
                grid-template-columns: 1fr;
            }
            .section-header h2 {
                font-size: 22px;
            }
            .btn {
                padding: 12px 24px;
                font-size: 15px;
            }
            .logo {
                font-size: 18px;
            }
            .logo-icon {
                width: 34px;
                height: 34px;
                font-size: 15px;
            }
            .category-tab {
                font-size: 13px;
                padding: 8px 16px;
            }
            .faq-question {
                font-size: 15px;
                padding: 16px 18px;
            }
            .faq-answer {
                padding: 0 18px 16px;
            }
            .back-top {
                bottom: 20px;
                right: 20px;
                width: 40px;
                height: 40px;
                font-size: 16px;
            }
        }