/* roulang page: index */
:root {
            --primary: #1A6BFF;
            --primary-dark: #0D4FBF;
            --secondary: #8833FF;
            --accent: #00D4FF;
            --bg-deep: #080C1A;
            --bg-section: #0B0F22;
            --glass-bg: rgba(255,255,255,0.04);
            --glass-border: rgba(255,255,255,0.08);
            --glass-blur: 24px;
            --text-primary: #FFFFFF;
            --text-body: rgba(255,255,255,0.88);
            --text-secondary: rgba(255,255,255,0.62);
            --text-muted: rgba(255,255,255,0.35);
            --radius-card: 16px;
            --radius-panel: 24px;
            --radius-btn: 12px;
            --radius-sm: 8px;
            --shadow-card: 0 8px 32px rgba(0,0,0,0.45);
            --shadow-glow: 0 0 30px rgba(26,107,255,0.35);
            --shadow-glow-purple: 0 0 30px rgba(136,51,255,0.30);
            --font-sans: 'PingFang SC','Microsoft YaHei','Noto Sans SC',sans-serif;
            --font-mono: 'JetBrains Mono','Courier New',monospace;
            --nav-height: 72px;
            --container-max: 1280px;
            --section-padding: 80px;
            --section-padding-mobile: 48px;
        }

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

        html { scroll-behavior: smooth; }

        body {
            font-family: var(--font-sans);
            background: var(--bg-deep);
            color: var(--text-body);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

        a { color: var(--primary); text-decoration: none; transition: color 0.3s ease; }
        a:hover, a:focus { color: var(--accent); }

        img { max-width: 100%; height: auto; display: block; }
        button { cursor: pointer; font-family: var(--font-sans); }
        input, textarea, select { font-family: var(--font-sans); }

        .container { max-width: var(--container-max); margin: 0 auto; padding: 0 24px; }
        @media screen and (max-width: 767px) { .container { padding: 0 16px; } }

        section { padding: var(--section-padding) 0; }
        @media screen and (max-width: 767px) { section { padding: var(--section-padding-mobile) 0; } }

        .section-title { font-size: 36px; line-height: 44px; font-weight: 800; color: var(--text-primary); text-align: center; margin-bottom: 16px; }
        .section-subtitle { font-size: 16px; line-height: 26px; color: var(--text-secondary); text-align: center; margin-bottom: 48px; max-width: 720px; margin-left: auto; margin-right: auto; }
        @media screen and (max-width: 767px) { .section-title { font-size: 28px; line-height: 36px; } .section-subtitle { font-size: 14px; line-height: 22px; margin-bottom: 32px; } }

        .glow-line { width: 60px; height: 4px; background: linear-gradient(90deg, var(--primary), var(--secondary)); border-radius: 4px; margin: 0 auto 24px; box-shadow: 0 0 20px rgba(26,107,255,0.4); }

        /* ===== Navigation ===== */
        .site-header {
            position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
            height: var(--nav-height);
            background: rgba(11,15,34,0.92);
            backdrop-filter: blur(30px);
            -webkit-backdrop-filter: blur(30px);
            border-bottom: 1px solid rgba(255,255,255,0.06);
            transition: background 0.3s ease;
        }
        .site-header .container { height: 100%; display: flex; align-items: center; justify-content: space-between; }

        .logo-text {
            font-size: 24px; font-weight: 800;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            -webkit-background-clip: text; -webkit-text-fill-color: transparent;
            background-clip: text;
            letter-spacing: 1px;
        }
        .logo-icon { display: inline-block; margin-right: 8px; font-size: 28px; background: linear-gradient(135deg, var(--primary), var(--secondary)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }

        .nav-links { display: flex; align-items: center; gap: 32px; list-style: none; }
        .nav-links a {
            font-size: 15px; font-weight: 500; color: var(--text-secondary);
            transition: color 0.3s ease; position: relative; padding: 8px 0;
        }
        .nav-links a:hover, .nav-links a:focus { color: var(--text-primary); }
        .nav-links a.active {
            color: var(--primary);
        }
        .nav-links a.active::after {
            content: ''; position: absolute; bottom: -2px; left: 0; right: 0; height: 2px;
            background: var(--primary); border-radius: 2px; box-shadow: 0 0 12px rgba(26,107,255,0.5);
        }

        .nav-cta {
            display: inline-flex; align-items: center; gap: 8px;
            background: linear-gradient(90deg, var(--primary), var(--secondary));
            color: #fff; font-weight: 700; font-size: 15px;
            padding: 10px 28px; border-radius: var(--radius-btn);
            box-shadow: var(--shadow-glow);
            transition: all 0.3s ease; border: none;
        }
        .nav-cta:hover { background: linear-gradient(90deg, var(--secondary), var(--primary)); box-shadow: 0 0 50px rgba(26,107,255,0.55); transform: translateY(-1px); color: #fff; }
        .nav-cta:active { transform: scale(0.97); box-shadow: 0 0 20px rgba(26,107,255,0.3); }

        .hamburger { display: none; background: none; border: none; color: var(--text-primary); font-size: 28px; padding: 8px; cursor: pointer; }

        .mobile-nav-overlay {
            display: none; position: fixed; top: var(--nav-height); left: 0; right: 0; bottom: 0;
            background: rgba(11,15,34,0.98);
            backdrop-filter: blur(30px); -webkit-backdrop-filter: blur(30px);
            z-index: 999; flex-direction: column; align-items: center; justify-content: center; gap: 32px;
        }
        .mobile-nav-overlay.open { display: flex; }
        .mobile-nav-overlay a { font-size: 22px; font-weight: 600; color: var(--text-secondary); transition: color 0.3s; }
        .mobile-nav-overlay a:hover, .mobile-nav-overlay a.active { color: var(--primary); }

        @media screen and (max-width: 1023px) {
            .nav-links { display: none; }
            .hamburger { display: block; }
        }
        @media screen and (max-width: 767px) {
            .nav-cta { padding: 8px 20px; font-size: 14px; }
            .logo-text { font-size: 20px; }
        }

        /* ===== Hero ===== */
        .hero {
            min-height: 100vh; display: flex; align-items: center;
            background: var(--bg-deep);
            position: relative; overflow: hidden;
            padding-top: var(--nav-height);
        }
        .hero-bg {
            position: absolute; inset: 0;
            background: url('/assets/images/backpic/back-1.webp') center center / cover no-repeat;
            opacity: 0.25;
            z-index: 0;
        }
        .hero-bg::after {
            content: ''; position: absolute; inset: 0;
            background: linear-gradient(135deg, rgba(8,12,26,0.92) 0%, rgba(11,15,34,0.70) 50%, rgba(8,12,26,0.85) 100%);
        }
        .hero-grid {
            position: relative; z-index: 1;
            display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center;
            width: 100%; max-width: var(--container-max); margin: 0 auto; padding: 0 24px;
        }
        .hero-left h1 {
            font-size: 48px; line-height: 56px; font-weight: 900; color: var(--text-primary);
            margin-bottom: 20px; letter-spacing: 1px;
        }
        .hero-left h1 span { background: linear-gradient(135deg, var(--primary), var(--accent)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
        .hero-left p { font-size: 18px; line-height: 28px; color: var(--text-secondary); margin-bottom: 32px; max-width: 520px; }
        .hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }
        .hero-actions .btn-primary {
            display: inline-flex; align-items: center; gap: 8px;
            background: linear-gradient(90deg, var(--primary), var(--secondary));
            color: #fff; font-weight: 700; font-size: 16px; padding: 14px 36px;
            border-radius: var(--radius-btn); border: none;
            box-shadow: var(--shadow-glow);
            transition: all 0.3s ease;
        }
        .hero-actions .btn-primary:hover { background: linear-gradient(90deg, var(--secondary), var(--primary)); box-shadow: 0 0 50px rgba(26,107,255,0.55); transform: translateY(-2px); color: #fff; }
        .hero-actions .btn-primary:active { transform: scale(0.97); }
        .hero-actions .btn-secondary {
            display: inline-flex; align-items: center; gap: 8px;
            background: var(--glass-bg); backdrop-filter: blur(12px);
            border: 1px solid rgba(26,107,255,0.3); color: var(--primary);
            font-weight: 600; font-size: 16px; padding: 14px 36px;
            border-radius: var(--radius-btn); transition: all 0.3s ease;
        }
        .hero-actions .btn-secondary:hover { border-color: var(--primary); background: rgba(26,107,255,0.1); color: var(--primary); }

        .hero-right { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
        .hero-stat {
            background: rgba(255,255,255,0.04);
            backdrop-filter: blur(24px); -webkit-backdrop-filter: blur(24px);
            border: 1px solid rgba(255,255,255,0.08);
            border-radius: var(--radius-card);
            padding: 24px 20px; text-align: center;
            box-shadow: var(--shadow-card);
            transition: all 0.3s ease;
        }
        .hero-stat:hover { border-color: rgba(255,255,255,0.15); box-shadow: 0 8px 40px rgba(0,0,0,0.5); }
        .hero-stat .num {
            font-family: var(--font-mono); font-size: 48px; line-height: 56px; font-weight: 800;
            color: var(--accent); text-shadow: 0 0 20px rgba(0,212,255,0.3);
        }
        .hero-stat .label { font-size: 14px; line-height: 22px; color: rgba(255,255,255,0.7); margin-top: 8px; }

        @media screen and (max-width: 1023px) {
            .hero-grid { grid-template-columns: 1fr; gap: 32px; text-align: center; }
            .hero-left p { margin-left: auto; margin-right: auto; }
            .hero-actions { justify-content: center; }
            .hero-right { max-width: 480px; margin: 0 auto; }
            .hero-left h1 { font-size: 40px; line-height: 48px; }
        }
        @media screen and (max-width: 767px) {
            .hero-left h1 { font-size: 32px; line-height: 40px; }
            .hero-left p { font-size: 16px; line-height: 24px; }
            .hero-stat .num { font-size: 36px; line-height: 44px; }
            .hero-stat { padding: 16px 12px; }
            .hero-actions .btn-primary, .hero-actions .btn-secondary { padding: 12px 24px; font-size: 15px; }
        }

        /* ===== Game Categories (服务矩阵) ===== */
        .categories { background: var(--bg-section); }
        .cat-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
        .cat-card {
            background: rgba(255,255,255,0.04);
            backdrop-filter: blur(24px); -webkit-backdrop-filter: blur(24px);
            border: 1px solid rgba(255,255,255,0.08);
            border-radius: var(--radius-card);
            padding: 24px; text-align: center;
            box-shadow: var(--shadow-card);
            transition: all 0.3s ease; cursor: pointer;
            position: relative; overflow: hidden;
        }
        .cat-card::before {
            content: ''; position: absolute; top: -50%; left: -50%; width: 200%; height: 200%;
            background: conic-gradient(from 0deg, transparent, rgba(26,107,255,0.08), transparent, rgba(136,51,255,0.08), transparent);
            animation: rotate-glow 6s linear infinite; opacity: 0; transition: opacity 0.5s ease;
        }
        .cat-card:hover::before { opacity: 1; }
        @keyframes rotate-glow { 0% { transform: rotate(0deg); } 100% { transform: rotate(360deg); } }

        .cat-card:hover { border-color: rgba(255,255,255,0.15); transform: translateY(-4px); box-shadow: 0 12px 48px rgba(0,0,0,0.5); }
        .cat-card .icon { font-size: 40px; margin-bottom: 16px; display: block; }
        .cat-card h4 { font-size: 18px; font-weight: 700; color: var(--text-primary); margin-bottom: 8px; }
        .cat-card p { font-size: 14px; color: var(--text-secondary); margin-bottom: 16px; line-height: 22px; }
        .cat-card .cat-link { font-size: 14px; font-weight: 600; color: var(--primary); }
        .cat-card:hover .cat-link { color: var(--accent); }

        .cat-card .thumb {
            width: 100%; aspect-ratio: 16/9; border-radius: var(--radius-sm);
            object-fit: cover; margin-bottom: 16px; transition: transform 0.4s ease;
        }
        .cat-card:hover .thumb { transform: scale(1.05); }

        @media screen and (max-width: 1023px) { .cat-grid { grid-template-columns: repeat(2, 1fr); } }
        @media screen and (max-width: 767px) { .cat-grid { grid-template-columns: 1fr; } }

        /* ===== Advantages (结果对比/优势对比) ===== */
        .advantages { background: var(--bg-deep); }
        .adv-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center; }
        .adv-left h3 { font-size: 28px; line-height: 36px; font-weight: 800; color: var(--text-primary); margin-bottom: 16px; }
        .adv-left p { font-size: 16px; line-height: 26px; color: var(--text-secondary); margin-bottom: 32px; }
        .adv-list { list-style: none; display: flex; flex-direction: column; gap: 16px; }
        .adv-list li { display: flex; align-items: center; gap: 12px; font-size: 16px; color: var(--text-body); }
        .adv-list li i { color: var(--accent); font-size: 20px; width: 24px; text-align: center; }

        .adv-right { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
        .adv-bar {
            background: rgba(255,255,255,0.04);
            backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px);
            border: 1px solid rgba(255,255,255,0.06);
            border-radius: var(--radius-card); padding: 20px;
            text-align: center; transition: all 0.3s ease;
        }
        .adv-bar:hover { border-color: rgba(255,255,255,0.12); transform: translateY(-2px); }
        .adv-bar .bar-label { font-size: 14px; color: var(--text-secondary); margin-bottom: 12px; }
        .adv-bar .bar-value { font-family: var(--font-mono); font-size: 36px; font-weight: 800; color: var(--accent); text-shadow: 0 0 16px rgba(0,212,255,0.25); margin-bottom: 8px; }
        .adv-bar .bar-track { height: 6px; background: rgba(255,255,255,0.08); border-radius: 6px; overflow: hidden; }
        .adv-bar .bar-fill { height: 100%; border-radius: 6px; background: linear-gradient(90deg, var(--primary), var(--accent)); width: 0%; transition: width 1s ease; }
        .adv-bar .bar-fill.fill-1 { width: 95%; }
        .adv-bar .bar-fill.fill-2 { width: 88%; }
        .adv-bar .bar-fill.fill-3 { width: 92%; }
        .adv-bar .bar-fill.fill-4 { width: 85%; }

        @media screen and (max-width: 1023px) { .adv-grid { grid-template-columns: 1fr; gap: 32px; } .adv-right { max-width: 480px; margin: 0 auto; } }
        @media screen and (max-width: 767px) { .adv-left h3 { font-size: 24px; line-height: 32px; } .adv-bar .bar-value { font-size: 28px; } }

        /* ===== Latest News (CMS) ===== */
        .latest-news { background: var(--bg-section); }
        .news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
        .news-card {
            background: rgba(255,255,255,0.04);
            backdrop-filter: blur(24px); -webkit-backdrop-filter: blur(24px);
            border: 1px solid rgba(255,255,255,0.08);
            border-radius: var(--radius-card); overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: all 0.3s ease;
        }
        .news-card:hover { border-color: rgba(255,255,255,0.15); transform: translateY(-4px); box-shadow: 0 12px 48px rgba(0,0,0,0.5); }
        .news-card .news-img { width: 100%; aspect-ratio: 16/9; object-fit: cover; }
        .news-card .news-body { padding: 20px; }
        .news-card .news-tag {
            display: inline-block; font-size: 12px; font-weight: 600;
            background: rgba(26,107,255,0.15); backdrop-filter: blur(8px);
            border: 1px solid rgba(26,107,255,0.2); color: var(--accent);
            padding: 4px 12px; border-radius: 20px; margin-bottom: 12px;
        }
        .news-card h4 { font-size: 18px; font-weight: 700; color: var(--text-primary); margin-bottom: 8px; line-height: 26px; }
        .news-card p { font-size: 14px; color: var(--text-secondary); line-height: 22px; margin-bottom: 12px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
        .news-card .news-meta { display: flex; align-items: center; justify-content: space-between; font-size: 12px; color: var(--text-muted); }
        .news-card .news-meta a { font-size: 13px; color: var(--primary); font-weight: 600; }
        .news-card .news-meta a:hover { color: var(--accent); }

        .news-empty { text-align: center; padding: 48px 24px; color: var(--text-secondary); font-size: 16px; background: rgba(255,255,255,0.02); border-radius: var(--radius-card); border: 1px dashed rgba(255,255,255,0.1); }

        @media screen and (max-width: 1023px) { .news-grid { grid-template-columns: repeat(2, 1fr); } }
        @media screen and (max-width: 767px) { .news-grid { grid-template-columns: 1fr; } }

        /* ===== FAQ ===== */
        .faq { background: var(--bg-deep); }
        .faq-container { max-width: 800px; margin: 0 auto; }
        .accordion-item {
            background: rgba(255,255,255,0.04);
            backdrop-filter: blur(24px); -webkit-backdrop-filter: blur(24px);
            border: 1px solid rgba(255,255,255,0.08);
            border-radius: var(--radius-card); margin-bottom: 12px;
            overflow: hidden; transition: all 0.3s ease;
        }
        .accordion-item:hover { border-color: rgba(255,255,255,0.12); }
        .accordion-title {
            display: flex; align-items: center; justify-content: space-between;
            padding: 20px 24px; font-size: 17px; font-weight: 700; color: var(--text-primary);
            cursor: pointer; transition: color 0.3s; background: none; border: none; width: 100%; text-align: left;
        }
        .accordion-title:hover { color: var(--primary); }
        .accordion-title i { transition: transform 0.3s ease; color: var(--text-muted); font-size: 14px; }
        .accordion-item.active .accordion-title i { transform: rotate(180deg); color: var(--primary); }
        .accordion-content {
            max-height: 0; overflow: hidden; transition: max-height 0.4s ease, padding 0.3s ease;
            padding: 0 24px; color: var(--text-secondary); font-size: 16px; line-height: 26px;
        }
        .accordion-item.active .accordion-content { max-height: 300px; padding: 0 24px 20px; }

        /* ===== Registration Form ===== */
        .cta-form { background: var(--bg-section); position: relative; overflow: hidden; }
        .cta-form::before {
            content: ''; position: absolute; top: -50%; left: -50%; width: 200%; height: 200%;
            background: radial-gradient(circle at 30% 50%, rgba(26,107,255,0.08), transparent 60%);
            pointer-events: none;
        }
        .form-panel {
            max-width: 600px; margin: 0 auto;
            background: rgba(255,255,255,0.04);
            backdrop-filter: blur(24px); -webkit-backdrop-filter: blur(24px);
            border: 1px solid rgba(255,255,255,0.08);
            border-radius: var(--radius-panel); padding: 48px 40px;
            box-shadow: var(--shadow-card); position: relative; z-index: 1;
        }
        .form-panel h3 { font-size: 28px; font-weight: 800; color: var(--text-primary); text-align: center; margin-bottom: 8px; }
        .form-panel .form-sub { text-align: center; color: var(--text-secondary); margin-bottom: 32px; font-size: 15px; }
        .form-panel label { font-size: 14px; font-weight: 600; color: var(--text-body); margin-bottom: 6px; display: block; }
        .form-panel input[type="text"], .form-panel input[type="password"], .form-panel input[type="tel"] {
            width: 100%; padding: 14px 16px; border-radius: var(--radius-btn);
            background: rgba(255,255,255,0.08); border: 1px solid rgba(255,255,255,0.12);
            color: var(--text-primary); font-size: 15px; transition: all 0.3s ease;
            margin-bottom: 20px;
        }
        .form-panel input:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px rgba(26,107,255,0.15); }
        .form-panel input::placeholder { color: var(--text-muted); }
        .form-panel .checkbox-group { display: flex; align-items: center; gap: 10px; margin-bottom: 24px; font-size: 14px; color: var(--text-secondary); }
        .form-panel .checkbox-group input[type="checkbox"] { width: 18px; height: 18px; accent-color: var(--primary); }
        .form-panel .checkbox-group a { color: var(--primary); }
        .form-panel .submit-btn {
            width: 100%; padding: 16px; border-radius: var(--radius-btn);
            background: linear-gradient(90deg, var(--primary), var(--secondary));
            color: #fff; font-weight: 700; font-size: 17px; border: none;
            box-shadow: var(--shadow-glow); transition: all 0.3s ease;
        }
        .form-panel .submit-btn:hover { background: linear-gradient(90deg, var(--secondary), var(--primary)); box-shadow: 0 0 50px rgba(26,107,255,0.55); transform: translateY(-1px); }
        .form-panel .submit-btn:active { transform: scale(0.97); }
        .form-panel .form-footer { text-align: center; margin-top: 20px; font-size: 14px; color: var(--text-secondary); }
        .form-panel .form-footer a { color: var(--primary); font-weight: 600; }

        @media screen and (max-width: 767px) { .form-panel { padding: 32px 20px; } .form-panel h3 { font-size: 24px; } }

        /* ===== Footer ===== */
        .site-footer {
            background: #060A15; padding: 64px 0 32px;
            border-top: 1px solid rgba(255,255,255,0.04);
        }
        .footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1.5fr; gap: 40px; }
        .footer-col h5 { font-size: 16px; font-weight: 700; color: var(--text-primary); margin-bottom: 20px; }
        .footer-col p { font-size: 14px; color: var(--text-secondary); line-height: 22px; }
        .footer-col .footer-logo { font-size: 22px; font-weight: 800; background: linear-gradient(135deg, var(--primary), var(--secondary)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; margin-bottom: 12px; display: block; }
        .footer-col ul { list-style: none; display: flex; flex-direction: column; gap: 10px; }
        .footer-col ul a { font-size: 14px; color: var(--text-secondary); transition: color 0.3s; }
        .footer-col ul a:hover { color: var(--primary); }
        .footer-col .social-links { display: flex; gap: 16px; margin-top: 12px; }
        .footer-col .social-links a { width: 40px; height: 40px; border-radius: 50%; background: rgba(255,255,255,0.06); display: flex; align-items: center; justify-content: center; color: var(--text-secondary); font-size: 18px; transition: all 0.3s; }
        .footer-col .social-links a:hover { background: rgba(26,107,255,0.15); color: var(--primary); }
        .footer-bottom { margin-top: 48px; padding-top: 24px; border-top: 1px solid rgba(255,255,255,0.06); display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 12px; font-size: 13px; color: rgba(255,255,255,0.4); }
        .footer-bottom a { color: rgba(255,255,255,0.4); }
        .footer-bottom a:hover { color: var(--primary); }

        @media screen and (max-width: 1023px) { .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; } }
        @media screen and (max-width: 767px) { .footer-grid { grid-template-columns: 1fr; gap: 24px; } .footer-bottom { flex-direction: column; text-align: center; } }

        /* ===== Utility ===== */
        .text-gradient { background: linear-gradient(135deg, var(--primary), var(--accent)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }

        /* Foundation overrides */
        .grid-x { margin: 0; }
        .cell { padding: 0; }
        .accordion { background: transparent; border: none; margin: 0; }
        .accordion .accordion-item { background: transparent; border: 1px solid rgba(255,255,255,0.08); margin-bottom: 12px; border-radius: var(--radius-card); }
        .accordion .accordion-item .accordion-title { background: transparent; border: none; color: var(--text-primary); font-size: 17px; font-weight: 700; padding: 20px 24px; border-radius: var(--radius-card); }
        .accordion .accordion-item .accordion-title:hover { background: transparent; color: var(--primary); }
        .accordion .accordion-item .accordion-content { border: none; background: transparent; color: var(--text-secondary); font-size: 16px; line-height: 26px; padding: 0 24px 20px; }
        .accordion .accordion-item.is-active .accordion-title { background: transparent; color: var(--primary); }

        /* touch targets */
        @media (pointer: coarse) {
            .nav-links a, .nav-cta, .cat-card, .news-card, .accordion-title, .submit-btn, .social-links a { min-height: 44px; }
        }

/* roulang page: article */
/* ===== Design Variables ===== */
        :root {
            --primary: #1A6BFF;
            --primary-dark: #0D4FBF;
            --secondary: #8833FF;
            --accent: #00D4FF;
            --bg-deep: #080C1A;
            --bg-section: #0B0F22;
            --glass-bg: rgba(255, 255, 255, 0.04);
            --glass-border: rgba(255, 255, 255, 0.08);
            --glass-blur: 24px;
            --text-primary: #FFFFFF;
            --text-body: rgba(255, 255, 255, 0.88);
            --text-secondary: rgba(255, 255, 255, 0.62);
            --text-muted: rgba(255, 255, 255, 0.35);
            --radius-card: 16px;
            --radius-btn: 12px;
            --radius-sm: 8px;
            --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.45);
            --shadow-glow: 0 0 30px rgba(26, 107, 255, 0.35);
            --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
            --font-mono: 'JetBrains Mono', 'Courier New', monospace;
            --nav-height: 72px;
            --container-max: 1280px;
            --section-padding: 80px;
            --section-padding-mobile: 48px;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-sans);
            background: var(--bg-deep);
            color: var(--text-body);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        a {
            color: var(--primary);
            text-decoration: none;
            transition: color 0.3s ease;
        }

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

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

        ul,
        ol {
            list-style: none;
        }

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

        /* ===== Navigation ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: var(--nav-height);
            background: rgba(11, 15, 34, 0.92);
            backdrop-filter: blur(30px);
            -webkit-backdrop-filter: blur(30px);
            border-bottom: 1px solid var(--glass-border);
            z-index: 1000;
            transition: background 0.3s ease;
        }

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

        .logo-text {
            font-size: 24px;
            font-weight: 800;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            display: flex;
            align-items: center;
            gap: 10px;
            letter-spacing: 0.5px;
        }

        .logo-icon {
            font-size: 28px;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

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

        .nav-links li a {
            padding: 8px 18px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: var(--radius-sm);
            transition: all 0.3s ease;
            position: relative;
        }

        .nav-links li a:hover {
            color: var(--text-primary);
            background: rgba(255, 255, 255, 0.06);
        }

        .nav-links li a.active {
            color: var(--primary);
            background: rgba(26, 107, 255, 0.1);
            box-shadow: 0 0 20px rgba(26, 107, 255, 0.15);
        }

        .nav-links li a.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 60%;
            height: 2px;
            background: linear-gradient(90deg, var(--primary), var(--secondary));
            border-radius: 2px;
        }

        .nav-cta {
            padding: 10px 28px;
            font-size: 15px;
            font-weight: 700;
            color: #fff;
            background: linear-gradient(90deg, var(--primary), var(--secondary));
            border-radius: var(--radius-btn);
            box-shadow: 0 0 30px rgba(26, 107, 255, 0.35), 0 4px 16px rgba(0, 0, 0, 0.3);
            transition: all 0.3s ease;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            border: none;
            cursor: pointer;
        }

        .nav-cta:hover {
            background: linear-gradient(90deg, var(--secondary), var(--primary));
            box-shadow: 0 0 50px rgba(26, 107, 255, 0.55), 0 6px 24px rgba(0, 0, 0, 0.4);
            color: #fff;
            transform: translateY(-1px);
        }

        .nav-cta:active {
            transform: scale(0.97);
            box-shadow: 0 0 20px rgba(26, 107, 255, 0.25);
        }

        .hamburger {
            display: none;
            background: none;
            border: none;
            color: var(--text-primary);
            font-size: 24px;
            cursor: pointer;
            padding: 8px 12px;
            border-radius: var(--radius-sm);
            transition: background 0.3s ease;
        }

        .hamburger:hover {
            background: rgba(255, 255, 255, 0.06);
        }

        /* ===== Mobile Navigation ===== */
        .mobile-menu {
            display: none;
            position: fixed;
            top: var(--nav-height);
            left: 0;
            width: 100%;
            background: rgba(11, 15, 34, 0.98);
            backdrop-filter: blur(30px);
            -webkit-backdrop-filter: blur(30px);
            border-bottom: 1px solid var(--glass-border);
            padding: 20px 24px;
            z-index: 999;
            box-shadow: 0 20px 60px rgba(0, 0, 0, 0.6);
        }

        .mobile-menu.open {
            display: block;
        }

        .mobile-menu ul {
            display: flex;
            flex-direction: column;
            gap: 6px;
        }

        .mobile-menu ul li a {
            display: block;
            padding: 14px 16px;
            font-size: 18px;
            color: var(--text-secondary);
            border-radius: var(--radius-sm);
            transition: all 0.3s ease;
        }

        .mobile-menu ul li a:hover {
            color: var(--text-primary);
            background: rgba(255, 255, 255, 0.06);
        }

        .mobile-menu ul li a.active {
            color: var(--primary);
            background: rgba(26, 107, 255, 0.1);
        }

        /* ===== Article Hero ===== */
        .article-hero {
            padding: 140px 0 40px;
            background: var(--bg-section);
            position: relative;
            overflow: hidden;
        }

        .article-hero::before {
            content: '';
            position: absolute;
            top: -30%;
            right: -10%;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(136, 51, 255, 0.15), transparent 70%);
            pointer-events: none;
        }

        .article-hero::after {
            content: '';
            position: absolute;
            bottom: -20%;
            left: -10%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(26, 107, 255, 0.1), transparent 70%);
            pointer-events: none;
        }

        .breadcrumb {
            font-size: 14px;
            color: var(--text-muted);
            margin-bottom: 20px;
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
        }

        .breadcrumb a {
            color: var(--text-secondary);
            transition: color 0.3s ease;
        }

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

        .breadcrumb span {
            color: var(--text-muted);
        }

        .article-title {
            font-size: 40px;
            font-weight: 800;
            line-height: 1.2;
            color: var(--text-primary);
            margin-bottom: 16px;
            max-width: 900px;
        }

        .article-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 16px 24px;
            font-size: 14px;
            color: var(--text-secondary);
            margin-bottom: 24px;
            align-items: center;
        }

        .article-meta .meta-item {
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .article-meta .meta-item i {
            font-size: 13px;
            color: var(--text-muted);
        }

        .article-category-tag {
            display: inline-block;
            padding: 4px 14px;
            font-size: 12px;
            font-weight: 600;
            color: var(--accent);
            background: rgba(0, 212, 255, 0.1);
            border: 1px solid rgba(0, 212, 255, 0.2);
            border-radius: 20px;
        }

        .article-cover {
            margin-top: 24px;
            border-radius: var(--radius-card);
            overflow: hidden;
            aspect-ratio: 16 / 9;
            background: var(--glass-bg);
            border: 1px solid var(--glass-border);
            box-shadow: var(--shadow-card);
        }

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

        .article-cover:hover img {
            transform: scale(1.02);
        }

        /* ===== Article Content ===== */
        .article-content-section {
            padding: 48px 0 60px;
            background: var(--bg-deep);
        }

        .article-body-wrapper {
            max-width: 800px;
            margin: 0 auto;
        }

        .article-body {
            font-size: 16px;
            line-height: 1.8;
            color: var(--text-body);
        }

        .article-body h2 {
            font-size: 28px;
            font-weight: 700;
            color: var(--text-primary);
            margin: 40px 0 16px;
            line-height: 1.3;
        }

        .article-body h3 {
            font-size: 22px;
            font-weight: 700;
            color: var(--text-primary);
            margin: 32px 0 12px;
            line-height: 1.3;
        }

        .article-body p {
            margin-bottom: 20px;
            color: var(--text-body);
        }

        .article-body ul,
        .article-body ol {
            margin: 16px 0 20px;
            padding-left: 24px;
            color: var(--text-body);
        }

        .article-body ul li {
            list-style-type: disc;
            margin-bottom: 8px;
        }

        .article-body ol li {
            list-style-type: decimal;
            margin-bottom: 8px;
        }

        .article-body blockquote {
            margin: 24px 0;
            padding: 20px 24px;
            border-left: 4px solid var(--primary);
            background: rgba(26, 107, 255, 0.06);
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            color: var(--text-secondary);
            font-style: italic;
        }

        .article-body a {
            color: var(--primary);
            text-decoration: underline;
            text-underline-offset: 2px;
        }

        .article-body a:hover {
            color: var(--accent);
        }

        .article-body img {
            border-radius: var(--radius-sm);
            margin: 24px 0;
            box-shadow: var(--shadow-card);
        }

        .article-body figure {
            margin: 24px 0;
            text-align: center;
        }

        .article-body figure figcaption {
            font-size: 13px;
            color: var(--text-muted);
            margin-top: 8px;
        }

        .article-body code {
            font-family: var(--font-mono);
            background: rgba(255, 255, 255, 0.06);
            padding: 2px 8px;
            border-radius: 4px;
            font-size: 14px;
            color: var(--accent);
        }

        .article-body pre {
            background: rgba(255, 255, 255, 0.06);
            padding: 20px;
            border-radius: var(--radius-sm);
            overflow-x: auto;
            margin: 24px 0;
            border: 1px solid var(--glass-border);
        }

        .article-body pre code {
            background: none;
            padding: 0;
            color: var(--text-body);
        }

        /* Tags */
        .article-tags {
            margin-top: 40px;
            padding-top: 24px;
            border-top: 1px solid var(--glass-border);
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }

        .article-tags .tag-badge {
            display: inline-block;
            padding: 6px 16px;
            font-size: 13px;
            color: var(--text-secondary);
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid var(--glass-border);
            border-radius: 20px;
            transition: all 0.3s ease;
        }

        .article-tags .tag-badge:hover {
            color: var(--primary);
            border-color: rgba(26, 107, 255, 0.3);
            background: rgba(26, 107, 255, 0.06);
        }

        /* ===== Related Articles ===== */
        .related-section {
            padding: 60px 0 80px;
            background: var(--bg-section);
        }

        .related-section .section-title {
            font-size: 28px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 8px;
        }

        .related-section .section-subtitle {
            font-size: 16px;
            color: var(--text-secondary);
            margin-bottom: 32px;
        }

        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .related-card {
            background: var(--glass-bg);
            border: 1px solid var(--glass-border);
            border-radius: var(--radius-card);
            overflow: hidden;
            transition: all 0.4s ease;
            backdrop-filter: blur(var(--glass-blur));
            -webkit-backdrop-filter: blur(var(--glass-blur));
            box-shadow: var(--shadow-card);
        }

        .related-card:hover {
            border-color: rgba(255, 255, 255, 0.15);
            box-shadow: 0 12px 48px rgba(0, 0, 0, 0.55);
            transform: translateY(-4px);
        }

        .related-card .card-img {
            aspect-ratio: 16 / 9;
            overflow: hidden;
            background: var(--glass-bg);
        }

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

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

        .related-card .card-body {
            padding: 16px 20px 20px;
        }

        .related-card .card-body h4 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 8px;
            line-height: 1.4;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .related-card .card-body .card-date {
            font-size: 13px;
            color: var(--text-muted);
            display: flex;
            align-items: center;
            gap: 6px;
        }

        /* ===== Not Found ===== */
        .not-found-box {
            text-align: center;
            padding: 80px 20px;
        }

        .not-found-box .nf-icon {
            font-size: 64px;
            color: var(--text-muted);
            margin-bottom: 20px;
        }

        .not-found-box h2 {
            font-size: 28px;
            color: var(--text-primary);
            margin-bottom: 12px;
        }

        .not-found-box p {
            font-size: 16px;
            color: var(--text-secondary);
            margin-bottom: 24px;
        }

        .not-found-box .btn-back {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 32px;
            font-size: 16px;
            font-weight: 600;
            color: #fff;
            background: linear-gradient(90deg, var(--primary), var(--secondary));
            border-radius: var(--radius-btn);
            box-shadow: var(--shadow-glow);
            transition: all 0.3s ease;
        }

        .not-found-box .btn-back:hover {
            background: linear-gradient(90deg, var(--secondary), var(--primary));
            box-shadow: 0 0 50px rgba(26, 107, 255, 0.55);
            transform: translateY(-2px);
            color: #fff;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: #060A15;
            border-top: 1px solid var(--glass-border);
            padding: 60px 0 30px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
            gap: 40px;
            margin-bottom: 40px;
        }

        .footer-logo {
            font-size: 22px;
            font-weight: 800;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            display: flex;
            align-items: center;
            gap: 8px;
            margin-bottom: 12px;
        }

        .footer-col p {
            font-size: 14px;
            line-height: 1.7;
            color: var(--text-muted);
            margin-bottom: 0;
        }

        .footer-col h5 {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 16px;
        }

        .footer-col ul li {
            margin-bottom: 10px;
        }

        .footer-col ul li a {
            font-size: 14px;
            color: var(--text-muted);
            transition: color 0.3s ease;
        }

        .footer-col ul li a:hover {
            color: var(--primary);
        }

        .footer-col ul li i {
            color: var(--text-muted);
            width: 16px;
        }

        .social-links {
            display: flex;
            gap: 12px;
            margin-top: 16px;
        }

        .social-links a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            font-size: 18px;
            color: var(--text-muted);
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid var(--glass-border);
            border-radius: 50%;
            transition: all 0.3s ease;
        }

        .social-links a:hover {
            color: var(--primary);
            border-color: rgba(26, 107, 255, 0.3);
            background: rgba(26, 107, 255, 0.06);
            transform: translateY(-2px);
        }

        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            padding-top: 24px;
            border-top: 1px solid var(--glass-border);
            font-size: 13px;
            color: var(--text-muted);
        }

        .footer-bottom a {
            color: var(--text-muted);
            transition: color 0.3s ease;
        }

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

        /* ===== Responsive ===== */
        @media (max-width: 1023px) {
            .nav-links {
                display: none;
            }

            .hamburger {
                display: block;
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }

            .article-title {
                font-size: 32px;
            }

            .related-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 767px) {
            .container {
                padding: 0 16px;
            }

            :root {
                --section-padding: 48px;
                --nav-height: 64px;
            }

            .logo-text {
                font-size: 20px;
            }

            .nav-cta {
                padding: 8px 18px;
                font-size: 14px;
            }

            .nav-cta span {
                display: none;
            }

            .article-hero {
                padding: 100px 0 24px;
            }

            .article-title {
                font-size: 26px;
            }

            .article-meta {
                gap: 10px 16px;
                font-size: 13px;
            }

            .article-body-wrapper {
                padding: 0;
            }

            .article-body {
                font-size: 15px;
                line-height: 1.7;
            }

            .article-body h2 {
                font-size: 22px;
            }

            .article-body h3 {
                font-size: 18px;
            }

            .related-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }

            .related-section .section-title {
                font-size: 24px;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }

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

            .breadcrumb {
                font-size: 12px;
            }
        }

        @media (max-width: 520px) {
            .article-title {
                font-size: 22px;
            }

            .article-meta {
                flex-direction: column;
                gap: 6px;
            }

            .nav-cta {
                padding: 8px 14px;
                font-size: 13px;
            }

            .nav-cta i {
                font-size: 14px;
            }
        }

        /* ===== Helper ===== */
        .text-center {
            text-align: center;
        }

        .mt-20 {
            margin-top: 20px;
        }

        .mb-20 {
            margin-bottom: 20px;
        }

        .glow-line {
            width: 60px;
            height: 3px;
            background: linear-gradient(90deg, var(--primary), var(--secondary));
            border-radius: 4px;
            margin-bottom: 16px;
        }

        .glow-line.center {
            margin-left: auto;
            margin-right: auto;
        }

/* roulang page: category1 */
:root {
            --primary: #1A6BFF;
            --primary-dark: #0D4FBF;
            --secondary: #8833FF;
            --accent: #00D4FF;
            --bg-deep: #080C1A;
            --bg-section: #0B0F22;
            --glass-bg: rgba(255,255,255,0.04);
            --glass-border: rgba(255,255,255,0.08);
            --glass-blur: 24px;
            --text-primary: #FFFFFF;
            --text-body: rgba(255,255,255,0.88);
            --text-secondary: rgba(255,255,255,0.62);
            --text-muted: rgba(255,255,255,0.35);
            --radius-card: 16px;
            --radius-btn: 12px;
            --shadow-card: 0 8px 32px rgba(0,0,0,0.4);
            --shadow-glow: 0 0 30px rgba(26,107,255,0.35);
            --font-sans: 'PingFang SC','Microsoft YaHei','Noto Sans SC',sans-serif;
            --font-mono: 'JetBrains Mono','Courier New',monospace;
            --nav-height: 72px;
            --container-max: 1280px;
            --section-padding: 80px;
            --section-padding-mobile: 48px;
        }

        *,
        *::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);
            background: var(--bg-deep);
            color: var(--text-body);
            line-height: 1.6;
            font-size: 16px;
            overflow-x: hidden;
            min-height: 100vh;
        }

        a {
            color: var(--primary);
            text-decoration: none;
            transition: color 0.3s ease;
        }
        a:hover {
            color: var(--accent);
        }

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

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

        /* === 导航 === */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: var(--nav-height);
            background: rgba(11, 15, 34, 0.92);
            backdrop-filter: blur(30px);
            -webkit-backdrop-filter: blur(30px);
            border-bottom: 1px solid var(--glass-border);
            z-index: 1000;
            transition: background 0.3s ease;
        }
        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }
        .logo-text {
            font-size: 24px;
            font-weight: 800;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            display: flex;
            align-items: center;
            gap: 10px;
            letter-spacing: 1px;
        }
        .logo-text .logo-icon {
            -webkit-text-fill-color: var(--accent);
            font-size: 28px;
        }
        .nav-links {
            display: flex;
            list-style: none;
            gap: 8px;
            align-items: center;
        }
        .nav-links li a {
            color: var(--text-secondary);
            font-size: 16px;
            font-weight: 500;
            padding: 8px 18px;
            border-radius: 8px;
            transition: all 0.3s ease;
            position: relative;
        }
        .nav-links li a:hover {
            color: var(--text-primary);
            background: rgba(255,255,255,0.06);
        }
        .nav-links li a.active {
            color: var(--text-primary);
            background: rgba(26,107,255,0.15);
            box-shadow: inset 0 -2px 0 var(--primary);
        }
        .nav-cta {
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            color: var(--text-primary) !important;
            padding: 10px 28px;
            border-radius: var(--radius-btn);
            font-weight: 700;
            font-size: 15px;
            box-shadow: 0 0 30px rgba(26,107,255,0.35), 0 4px 16px rgba(0,0,0,0.3);
            transition: all 0.3s ease;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .nav-cta:hover {
            background: linear-gradient(135deg, var(--secondary), var(--primary));
            box-shadow: 0 0 50px rgba(26,107,255,0.55);
            transform: translateY(-2px);
            color: var(--text-primary) !important;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: var(--text-primary);
            font-size: 26px;
            cursor: pointer;
            padding: 8px;
            border-radius: 8px;
            transition: background 0.3s;
        }
        .hamburger:hover {
            background: rgba(255,255,255,0.08);
        }

        /* === 移动端导航 === */
        @media (max-width: 1023px) {
            .nav-links {
                position: fixed;
                top: var(--nav-height);
                left: 0;
                width: 100%;
                background: rgba(11, 15, 34, 0.96);
                backdrop-filter: blur(30px);
                flex-direction: column;
                padding: 20px 24px;
                gap: 6px;
                transform: translateY(-110%);
                opacity: 0;
                transition: all 0.4s ease;
                border-bottom: 1px solid var(--glass-border);
                z-index: 999;
                pointer-events: none;
            }
            .nav-links.open {
                transform: translateY(0);
                opacity: 1;
                pointer-events: auto;
            }
            .nav-links li a {
                font-size: 20px;
                padding: 12px 16px;
                width: 100%;
                display: block;
            }
            .hamburger {
                display: block;
            }
            .nav-cta {
                padding: 8px 18px;
                font-size: 14px;
            }
        }

        @media (max-width: 520px) {
            .logo-text {
                font-size: 20px;
            }
            .nav-cta span {
                display: none;
            }
            .container {
                padding: 0 16px;
            }
        }

        /* === Hero 分类 === */
        .category-hero {
            padding: 140px 0 60px;
            background: linear-gradient(135deg, #0B0F22 0%, #1A1A3A 50%, #0B0F22 100%);
            position: relative;
            overflow: hidden;
            min-height: 360px;
            display: flex;
            align-items: center;
        }
        .category-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.webp') center center / cover no-repeat;
            opacity: 0.25;
            mix-blend-mode: overlay;
        }
        .category-hero::after {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 30% 40%, rgba(136,51,255,0.15) 0%, transparent 60%),
                radial-gradient(ellipse at 70% 60%, rgba(0,212,255,0.08) 0%, transparent 50%);
            pointer-events: none;
        }
        .category-hero .container {
            position: relative;
            z-index: 2;
            text-align: center;
        }
        .category-hero h1 {
            font-size: 52px;
            font-weight: 900;
            color: var(--text-primary);
            margin-bottom: 16px;
            line-height: 1.2;
            text-shadow: 0 0 40px rgba(26,107,255,0.3);
        }
        .category-hero h1 .highlight {
            background: linear-gradient(135deg, var(--accent), var(--secondary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .category-hero .subtitle {
            font-size: 18px;
            color: var(--text-secondary);
            max-width: 680px;
            margin: 0 auto 24px;
            line-height: 1.7;
        }
        .category-hero .hero-tags {
            display: flex;
            gap: 12px;
            justify-content: center;
            flex-wrap: wrap;
        }
        .category-hero .hero-tags span {
            background: var(--glass-bg);
            backdrop-filter: blur(12px);
            border: 1px solid var(--glass-border);
            padding: 6px 20px;
            border-radius: 20px;
            font-size: 14px;
            color: var(--text-secondary);
        }

        @media (max-width: 1023px) {
            .category-hero {
                padding: 120px 0 48px;
                min-height: 300px;
            }
            .category-hero h1 {
                font-size: 38px;
            }
            .category-hero .subtitle {
                font-size: 16px;
            }
        }
        @media (max-width: 520px) {
            .category-hero h1 {
                font-size: 30px;
            }
            .category-hero .subtitle {
                font-size: 14px;
            }
        }

        /* === 板块通用 === */
        .section {
            padding: var(--section-padding) 0;
        }
        .section-alt {
            background: var(--bg-section);
        }
        .section-title {
            font-size: 36px;
            font-weight: 800;
            color: var(--text-primary);
            text-align: center;
            margin-bottom: 12px;
            line-height: 1.2;
        }
        .section-sub {
            font-size: 16px;
            color: var(--text-secondary);
            text-align: center;
            max-width: 600px;
            margin: 0 auto 48px;
        }
        .section-title .glow {
            display: inline-block;
            position: relative;
        }
        .section-title .glow::after {
            content: '';
            display: block;
            width: 60px;
            height: 4px;
            background: linear-gradient(90deg, var(--primary), var(--secondary));
            border-radius: 4px;
            margin: 8px auto 0;
            box-shadow: 0 0 20px rgba(26,107,255,0.4);
        }

        @media (max-width: 768px) {
            .section {
                padding: var(--section-padding-mobile) 0;
            }
            .section-title {
                font-size: 28px;
            }
            .section-sub {
                font-size: 14px;
                margin-bottom: 32px;
            }
        }

        /* === 游戏卡片网格 === */
        .game-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 32px;
        }
        .game-card {
            background: var(--glass-bg);
            backdrop-filter: blur(var(--glass-blur));
            -webkit-backdrop-filter: blur(var(--glass-blur));
            border: 1px solid var(--glass-border);
            border-radius: var(--radius-card);
            overflow: hidden;
            transition: all 0.4s ease;
            box-shadow: var(--shadow-card), inset 0 1px 0 rgba(255,255,255,0.06);
            position: relative;
        }
        .game-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            border-radius: var(--radius-card);
            padding: 1px;
            background: linear-gradient(135deg, rgba(26,107,255,0.3), rgba(136,51,255,0.1), transparent 60%);
            -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
            -webkit-mask-composite: xor;
            mask-composite: exclude;
            pointer-events: none;
            opacity: 0;
            transition: opacity 0.4s ease;
        }
        .game-card:hover::before {
            opacity: 1;
        }
        .game-card:hover {
            border-color: rgba(255,255,255,0.15);
            transform: translateY(-6px);
            box-shadow: 0 12px 48px rgba(0,0,0,0.6), inset 0 1px 0 rgba(255,255,255,0.1);
        }
        .game-card .card-img {
            width: 100%;
            aspect-ratio: 16 / 9;
            object-fit: cover;
            display: block;
            transition: transform 0.5s ease;
        }
        .game-card:hover .card-img {
            transform: scale(1.05);
        }
        .game-card .card-body {
            padding: 20px 22px 24px;
        }
        .game-card .card-body h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 8px;
            line-height: 1.3;
        }
        .game-card .card-body p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.6;
            margin-bottom: 16px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .game-card .card-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 13px;
            color: var(--text-muted);
            flex-wrap: wrap;
        }
        .game-card .card-meta .badge {
            background: rgba(26,107,255,0.2);
            backdrop-filter: blur(8px);
            border: 1px solid rgba(26,107,255,0.2);
            padding: 2px 14px;
            border-radius: 20px;
            font-size: 12px;
            color: var(--accent);
            font-weight: 600;
        }
        .game-card .card-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--primary);
            font-weight: 600;
            font-size: 14px;
            margin-top: 12px;
            transition: gap 0.3s ease;
        }
        .game-card .card-link:hover {
            gap: 12px;
            color: var(--accent);
        }

        @media (max-width: 1023px) {
            .game-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 24px;
            }
        }
        @media (max-width: 520px) {
            .game-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .game-card .card-body {
                padding: 16px 18px 20px;
            }
            .game-card .card-body h3 {
                font-size: 18px;
            }
        }

        /* === 排行榜 === */
        .rank-list {
            max-width: 800px;
            margin: 0 auto;
        }
        .rank-item {
            display: flex;
            align-items: center;
            gap: 20px;
            padding: 18px 24px;
            background: var(--glass-bg);
            backdrop-filter: blur(12px);
            border: 1px solid var(--glass-border);
            border-radius: 14px;
            margin-bottom: 12px;
            transition: all 0.3s ease;
            cursor: default;
        }
        .rank-item:hover {
            border-color: rgba(26,107,255,0.2);
            background: rgba(255,255,255,0.06);
            transform: translateX(4px);
        }
        .rank-num {
            font-family: var(--font-mono);
            font-size: 28px;
            font-weight: 800;
            color: var(--accent);
            min-width: 48px;
            text-align: center;
            text-shadow: 0 0 20px rgba(0,212,255,0.3);
        }
        .rank-num.top {
            color: #FFD700;
            text-shadow: 0 0 20px rgba(255,215,0,0.4);
        }
        .rank-info {
            flex: 1;
        }
        .rank-info h4 {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 4px;
        }
        .rank-info p {
            font-size: 14px;
            color: var(--text-secondary);
        }
        .rank-score {
            font-family: var(--font-mono);
            font-size: 18px;
            font-weight: 700;
            color: var(--primary);
            text-shadow: 0 0 15px rgba(26,107,255,0.3);
        }

        @media (max-width: 520px) {
            .rank-item {
                padding: 14px 16px;
                gap: 12px;
            }
            .rank-num {
                font-size: 22px;
                min-width: 36px;
            }
            .rank-info h4 {
                font-size: 16px;
            }
            .rank-score {
                font-size: 15px;
            }
        }

        /* === 特色板块 === */
        .feature-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .feature-card {
            background: var(--glass-bg);
            backdrop-filter: blur(var(--glass-blur));
            border: 1px solid var(--glass-border);
            border-radius: var(--radius-card);
            padding: 32px 28px;
            text-align: center;
            transition: all 0.4s ease;
            box-shadow: var(--shadow-card);
        }
        .feature-card:hover {
            border-color: rgba(26,107,255,0.2);
            transform: translateY(-4px);
            box-shadow: 0 12px 40px rgba(0,0,0,0.5);
        }
        .feature-card .icon {
            font-size: 40px;
            color: var(--accent);
            margin-bottom: 16px;
            display: inline-block;
            background: rgba(0,212,255,0.1);
            padding: 16px;
            border-radius: 50%;
            width: 72px;
            height: 72px;
            line-height: 40px;
        }
        .feature-card h4 {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 10px;
        }
        .feature-card p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        @media (max-width: 1023px) {
            .feature-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }
        }
        @media (max-width: 520px) {
            .feature-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .feature-card {
                padding: 24px 20px;
            }
        }

        /* === 相关分类入口 === */
        .related-cats {
            display: flex;
            gap: 20px;
            justify-content: center;
            flex-wrap: wrap;
        }
        .related-cat-item {
            background: var(--glass-bg);
            backdrop-filter: blur(16px);
            border: 1px solid var(--glass-border);
            border-radius: 14px;
            padding: 20px 32px;
            display: flex;
            align-items: center;
            gap: 16px;
            transition: all 0.3s ease;
            min-width: 200px;
            justify-content: center;
        }
        .related-cat-item:hover {
            border-color: var(--primary);
            background: rgba(26,107,255,0.08);
            transform: translateY(-3px);
            box-shadow: 0 8px 30px rgba(26,107,255,0.15);
        }
        .related-cat-item .cat-icon {
            font-size: 28px;
            color: var(--accent);
        }
        .related-cat-item .cat-name {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-primary);
        }
        .related-cat-item .cat-arrow {
            color: var(--primary);
            font-size: 18px;
        }

        @media (max-width: 520px) {
            .related-cat-item {
                width: 100%;
                padding: 16px 24px;
            }
        }

        /* === CTA === */
        .cta-section {
            text-align: center;
            padding: 80px 0;
            background: linear-gradient(135deg, #0B0F22 0%, #1A1A3A 50%, #0B0F22 100%);
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at center, rgba(26,107,255,0.08) 0%, transparent 70%);
        }
        .cta-section .container {
            position: relative;
            z-index: 2;
        }
        .cta-section h2 {
            font-size: 38px;
            font-weight: 800;
            color: var(--text-primary);
            margin-bottom: 16px;
        }
        .cta-section p {
            font-size: 18px;
            color: var(--text-secondary);
            max-width: 560px;
            margin: 0 auto 32px;
        }
        .cta-btn-group {
            display: flex;
            gap: 16px;
            justify-content: center;
            flex-wrap: wrap;
        }
        .btn-primary {
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            color: var(--text-primary) !important;
            padding: 14px 36px;
            border-radius: var(--radius-btn);
            font-weight: 700;
            font-size: 16px;
            box-shadow: 0 0 30px rgba(26,107,255,0.35), 0 4px 16px rgba(0,0,0,0.3);
            transition: all 0.3s ease;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            border: none;
            cursor: pointer;
        }
        .btn-primary:hover {
            background: linear-gradient(135deg, var(--secondary), var(--primary));
            box-shadow: 0 0 50px rgba(26,107,255,0.55), 0 8px 24px rgba(0,0,0,0.4);
            transform: translateY(-2px);
            color: var(--text-primary) !important;
        }
        .btn-primary:active {
            transform: scale(0.97);
            box-shadow: 0 0 20px rgba(26,107,255,0.3);
        }
        .btn-secondary {
            background: var(--glass-bg);
            backdrop-filter: blur(12px);
            border: 1px solid rgba(26,107,255,0.3);
            color: var(--primary) !important;
            padding: 14px 36px;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 16px;
            transition: all 0.3s ease;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            cursor: pointer;
        }
        .btn-secondary:hover {
            border-color: var(--primary);
            background: rgba(26,107,255,0.1);
            transform: translateY(-2px);
            color: var(--accent) !important;
        }

        @media (max-width: 768px) {
            .cta-section {
                padding: 56px 0;
            }
            .cta-section h2 {
                font-size: 28px;
            }
            .cta-section p {
                font-size: 15px;
            }
            .btn-primary,
            .btn-secondary {
                padding: 12px 28px;
                font-size: 14px;
            }
        }

        /* === FAQ 手风琴 === */
        .faq-container {
            max-width: 780px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--glass-bg);
            backdrop-filter: blur(12px);
            border: 1px solid var(--glass-border);
            border-radius: 14px;
            margin-bottom: 12px;
            overflow: hidden;
            transition: border-color 0.3s ease;
        }
        .faq-item:hover {
            border-color: rgba(26,107,255,0.15);
        }
        .faq-question {
            padding: 20px 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            cursor: pointer;
            font-size: 18px;
            font-weight: 700;
            color: var(--text-primary);
            transition: background 0.3s ease;
            user-select: none;
            gap: 12px;
        }
        .faq-question:hover {
            background: rgba(255,255,255,0.03);
        }
        .faq-question .faq-toggle {
            font-size: 20px;
            color: var(--primary);
            transition: transform 0.3s ease;
            flex-shrink: 0;
        }
        .faq-item.open .faq-toggle {
            transform: rotate(180deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
            padding: 0 24px;
            color: var(--text-secondary);
            font-size: 15px;
            line-height: 1.7;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 24px 20px;
        }

        @media (max-width: 520px) {
            .faq-question {
                font-size: 16px;
                padding: 16px 18px;
            }
            .faq-answer {
                font-size: 14px;
            }
            .faq-item.open .faq-answer {
                padding: 0 18px 16px;
            }
        }

        /* === 页脚 === */
        .site-footer {
            background: #060A15;
            padding: 60px 0 0;
            border-top: 1px solid rgba(255,255,255,0.04);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255,255,255,0.05);
        }
        .footer-col .footer-logo {
            font-size: 22px;
            font-weight: 800;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            margin-bottom: 14px;
        }
        .footer-col p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
            max-width: 320px;
        }
        .footer-col h5 {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 16px;
        }
        .footer-col ul {
            list-style: none;
        }
        .footer-col ul li {
            margin-bottom: 8px;
        }
        .footer-col ul li a {
            color: var(--text-muted);
            font-size: 14px;
            transition: color 0.3s ease;
        }
        .footer-col ul li a:hover {
            color: var(--primary);
        }
        .social-links {
            display: flex;
            gap: 12px;
            margin-top: 16px;
        }
        .social-links a {
            color: var(--text-muted);
            font-size: 22px;
            transition: color 0.3s ease, transform 0.3s ease;
        }
        .social-links a:hover {
            color: var(--primary);
            transform: translateY(-3px);
        }
        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 24px 0;
            font-size: 13px;
            color: var(--text-muted);
            flex-wrap: wrap;
            gap: 12px;
        }
        .footer-bottom a {
            color: var(--text-muted);
        }
        .footer-bottom a:hover {
            color: var(--primary);
        }

        @media (max-width: 1023px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
        }
        @media (max-width: 520px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

        /* === 通用工具 === */
        .text-center {
            text-align: center;
        }
        .mt-48 {
            margin-top: 48px;
        }
        .mb-48 {
            margin-bottom: 48px;
        }

        /* === 动画 === */
        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(30px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        .animate-in {
            animation: fadeInUp 0.7s ease forwards;
        }
        .animate-in-d1 {
            animation-delay: 0.1s;
        }
        .animate-in-d2 {
            animation-delay: 0.2s;
        }
        .animate-in-d3 {
            animation-delay: 0.3s;
        }
        .animate-in-d4 {
            animation-delay: 0.4s;
        }

        @media (prefers-reduced-motion: reduce) {
            .animate-in,
            .animate-in-d1,
            .animate-in-d2,
            .animate-in-d3,
            .animate-in-d4 {
                animation: none;
            }
        }

        /* 滚动渐入 */
        .reveal {
            opacity: 0;
            transform: translateY(24px);
            transition: opacity 0.6s ease, transform 0.6s ease;
        }
        .reveal.visible {
            opacity: 1;
            transform: translateY(0);
        }

/* roulang page: category2 */
/* ===== Design Variables ===== */
        :root {
            --primary: #1A6BFF;
            --primary-dark: #0D4FBF;
            --secondary: #8833FF;
            --accent: #00D4FF;
            --bg-deep: #080C1A;
            --bg-section: #0B0F22;
            --glass-bg: rgba(255,255,255,0.04);
            --glass-border: rgba(255,255,255,0.08);
            --glass-blur: 24px;
            --text-primary: #FFFFFF;
            --text-body: rgba(255,255,255,0.88);
            --text-secondary: rgba(255,255,255,0.62);
            --text-muted: rgba(255,255,255,0.35);
            --radius-card: 16px;
            --radius-btn: 12px;
            --radius-lg: 24px;
            --radius-sm: 8px;
            --shadow-card: 0 8px 32px rgba(0,0,0,0.4);
            --shadow-glow: 0 0 30px rgba(26,107,255,0.35);
            --shadow-glow-purple: 0 0 30px rgba(136,51,255,0.3);
            --font-sans: 'PingFang SC','Microsoft YaHei','Noto Sans SC',sans-serif;
            --font-mono: 'JetBrains Mono','Courier New',monospace;
            --nav-height: 72px;
            --container-max: 1280px;
            --section-padding: 80px;
            --section-padding-mobile: 48px;
        }

        /* ===== Reset & Base ===== */
        *,*::before,*::after { box-sizing: border-box; margin:0; padding:0; }
        html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
        body {
            font-family: var(--font-sans);
            background: var(--bg-deep);
            color: var(--text-body);
            line-height: 1.6;
            font-size: 16px;
            overflow-x: hidden;
        }
        a { color: var(--primary); text-decoration: none; transition: color 0.3s ease; }
        a:hover { color: var(--accent); }
        img { max-width: 100%; height: auto; display: block; }
        ul,ol { list-style: none; }
        h1,h2,h3,h4,h5,h6 { color: var(--text-primary); font-weight: 700; line-height: 1.2; }
        .container { max-width: var(--container-max); margin: 0 auto; padding: 0 24px; }
        @media (max-width: 767px) { .container { padding: 0 16px; } }

        /* ===== Glass Mixin ===== */
        .glass {
            background: linear-gradient(135deg, rgba(255,255,255,0.04) 0%, rgba(13,18,36,0.75) 100%);
            backdrop-filter: blur(var(--glass-blur)) saturate(1.1);
            -webkit-backdrop-filter: blur(var(--glass-blur)) saturate(1.1);
            border: 1px solid var(--glass-border);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card), inset 0 1px 0 rgba(255,255,255,0.06);
            transition: border-color 0.3s ease, box-shadow 0.3s ease;
        }
        .glass:hover {
            border-color: rgba(255,255,255,0.15);
            box-shadow: 0 12px 48px rgba(0,0,0,0.5), inset 0 1px 0 rgba(255,255,255,0.08);
        }
        .glass-glow {
            position: relative;
            overflow: hidden;
        }
        .glass-glow::before {
            content: '';
            position: absolute;
            top: -50%; left: -50%;
            width: 200%; height: 200%;
            background: radial-gradient(circle at 20% 20%, rgba(26,107,255,0.08) 0%, transparent 60%),
                        radial-gradient(circle at 80% 80%, rgba(136,51,255,0.06) 0%, transparent 60%);
            pointer-events: none;
            opacity: 0;
            transition: opacity 0.5s ease;
        }
        .glass-glow:hover::before { opacity: 1; }

        /* ===== Buttons ===== */
        .btn-primary {
            display: inline-flex; align-items: center; gap: 8px;
            background: linear-gradient(90deg, #1A6BFF, #8833FF);
            color: #fff; font-weight: 700; font-size: 16px;
            padding: 14px 36px; border: none; border-radius: var(--radius-btn);
            box-shadow: var(--shadow-glow), 0 4px 16px rgba(0,0,0,0.3);
            cursor: pointer; transition: all 0.3s ease;
            text-decoration: none; line-height: 1.2;
        }
        .btn-primary:hover {
            background: linear-gradient(90deg, #8833FF, #1A6BFF);
            box-shadow: 0 0 50px rgba(26,107,255,0.55), 0 6px 24px rgba(0,0,0,0.4);
            color: #fff; transform: translateY(-2px);
        }
        .btn-primary:active { transform: scale(0.97); box-shadow: 0 0 20px rgba(26,107,255,0.35); }
        .btn-secondary {
            display: inline-flex; align-items: center; gap: 8px;
            background: rgba(255,255,255,0.04);
            backdrop-filter: blur(16px) saturate(1.1);
            -webkit-backdrop-filter: blur(16px) saturate(1.1);
            border: 1px solid rgba(26,107,255,0.3);
            color: var(--primary); font-weight: 600; font-size: 16px;
            padding: 14px 36px; border-radius: var(--radius-btn);
            cursor: pointer; transition: all 0.3s ease;
            text-decoration: none; line-height: 1.2;
        }
        .btn-secondary:hover {
            border-color: var(--primary); color: var(--primary);
            background: rgba(26,107,255,0.1); transform: translateY(-2px);
        }
        .btn-secondary:active { transform: scale(0.97); }
        .btn-full { width: 100%; justify-content: center; }
        @media (max-width: 767px) {
            .btn-primary, .btn-secondary { padding: 12px 28px; font-size: 15px; }
        }

        /* ===== Badge / Tag ===== */
        .badge {
            display: inline-block;
            background: rgba(255,255,255,0.06);
            backdrop-filter: blur(12px) saturate(1.1);
            -webkit-backdrop-filter: blur(12px) saturate(1.1);
            border: 1px solid rgba(255,255,255,0.1);
            border-radius: 8px;
            padding: 4px 14px;
            font-size: 12px; line-height: 1.6;
            color: var(--text-secondary);
            transition: all 0.3s ease;
        }
        .badge:hover { border-color: var(--primary); color: var(--primary); }
        .badge-accent { border-color: rgba(0,212,255,0.3); color: var(--accent); }
        .badge-accent:hover { border-color: var(--accent); color: var(--accent); }
        .badge-purple { border-color: rgba(136,51,255,0.3); color: var(--secondary); }
        .badge-purple:hover { border-color: var(--secondary); color: var(--secondary); }

        /* ===== Section Spacing ===== */
        .section { padding: var(--section-padding) 0; }
        .section-header {
            text-align: center;
            margin-bottom: 48px;
        }
        .section-header h2 {
            font-size: 36px; line-height: 44px;
            font-weight: 800;
            margin-bottom: 12px;
            background: linear-gradient(135deg, #fff 60%, rgba(255,255,255,0.6));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .section-header .subtitle {
            font-size: 16px; line-height: 26px;
            color: var(--text-secondary);
            max-width: 600px; margin: 0 auto;
        }
        .section-divider {
            width: 60px; height: 3px;
            background: linear-gradient(90deg, var(--primary), var(--secondary));
            border-radius: 4px; margin: 16px auto 0;
        }
        @media (max-width: 767px) {
            .section { padding: var(--section-padding-mobile) 0; }
            .section-header { margin-bottom: 32px; }
            .section-header h2 { font-size: 28px; line-height: 36px; }
            .section-header .subtitle { font-size: 15px; }
        }

        /* ===== Header / Navigation ===== */
        .site-header {
            position: fixed; top: 0; left: 0; right: 0;
            height: var(--nav-height);
            background: rgba(11,15,34,0.92);
            backdrop-filter: blur(30px) saturate(1.2);
            -webkit-backdrop-filter: blur(30px) saturate(1.2);
            border-bottom: 1px solid rgba(255,255,255,0.06);
            z-index: 1000;
            transition: background 0.3s ease;
        }
        .site-header .container {
            display: flex; align-items: center; justify-content: space-between;
            height: 100%;
        }
        .logo-text {
            display: flex; align-items: center; gap: 10px;
            font-size: 22px; font-weight: 800;
            background: linear-gradient(135deg, #1A6BFF, #8833FF);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            text-decoration: none;
            letter-spacing: 0.5px;
        }
        .logo-text .logo-icon { font-size: 24px; -webkit-text-fill-color: initial; color: var(--primary); }
        .nav-links { display: flex; align-items: center; gap: 8px; }
        .nav-links li { margin: 0; }
        .nav-links a {
            display: block;
            padding: 8px 18px;
            font-size: 15px; font-weight: 500;
            color: var(--text-secondary);
            border-radius: 8px;
            transition: all 0.3s ease;
            position: relative;
        }
        .nav-links a:hover { color: var(--text-primary); background: rgba(255,255,255,0.06); }
        .nav-links a.active {
            color: var(--primary);
            background: rgba(26,107,255,0.12);
            box-shadow: inset 0 -2px 0 var(--primary);
        }
        .nav-cta {
            display: inline-flex; align-items: center; gap: 8px;
            background: linear-gradient(90deg, #1A6BFF, #8833FF);
            color: #fff; font-weight: 700; font-size: 14px;
            padding: 10px 24px; border-radius: var(--radius-btn);
            box-shadow: 0 0 20px rgba(26,107,255,0.3);
            transition: all 0.3s ease;
            text-decoration: none;
        }
        .nav-cta:hover { background: linear-gradient(90deg, #8833FF, #1A6BFF); box-shadow: 0 0 40px rgba(26,107,255,0.5); color: #fff; transform: translateY(-1px); }
        .hamburger {
            display: none;
            background: none; border: none;
            font-size: 24px; color: var(--text-primary);
            cursor: pointer; padding: 8px;
            transition: color 0.3s ease;
        }
        .hamburger:hover { color: var(--primary); }
        @media (max-width: 1023px) {
            .nav-links { display: none; }
            .hamburger { display: block; }
            .nav-cta { font-size: 13px; padding: 8px 18px; }
        }
        @media (max-width: 767px) {
            .logo-text { font-size: 18px; }
            .logo-text .logo-icon { font-size: 20px; }
            .nav-cta span { display: none; }
            .nav-cta { padding: 8px 14px; font-size: 14px; }
        }

        /* ===== Mobile Off-canvas ===== */
        .off-canvas {
            position: fixed; top: 0; left: -280px;
            width: 280px; height: 100vh;
            background: rgba(11,15,34,0.98);
            backdrop-filter: blur(30px) saturate(1.2);
            -webkit-backdrop-filter: blur(30px) saturate(1.2);
            border-right: 1px solid rgba(255,255,255,0.06);
            z-index: 1100;
            transition: left 0.35s cubic-bezier(0.4,0,0.2,1);
            padding: 24px 20px;
            overflow-y: auto;
        }
        .off-canvas.open { left: 0; }
        .off-canvas-overlay {
            position: fixed; inset: 0;
            background: rgba(0,0,0,0.6);
            z-index: 1050;
            opacity: 0; pointer-events: none;
            transition: opacity 0.35s ease;
        }
        .off-canvas-overlay.open { opacity: 1; pointer-events: auto; }
        .off-canvas .close-btn {
            background: none; border: none;
            color: var(--text-primary); font-size: 28px;
            cursor: pointer; margin-bottom: 24px;
            transition: color 0.3s ease;
        }
        .off-canvas .close-btn:hover { color: var(--primary); }
        .off-canvas ul { display: flex; flex-direction: column; gap: 4px; }
        .off-canvas li { margin: 0; }
        .off-canvas a {
            display: block;
            padding: 14px 18px;
            font-size: 18px; font-weight: 500;
            color: var(--text-secondary);
            border-radius: 10px;
            transition: all 0.3s ease;
        }
        .off-canvas a:hover { color: var(--text-primary); background: rgba(255,255,255,0.06); }
        .off-canvas a.active { color: var(--primary); background: rgba(26,107,255,0.12); }
        .off-canvas .mobile-cta { margin-top: 16px; }

        /* ===== Hero Category ===== */
        .hero-category {
            position: relative;
            min-height: 360px;
            display: flex; align-items: center;
            padding: calc(var(--nav-height) + 40px) 0 60px;
            background: var(--bg-deep);
            overflow: hidden;
        }
        .hero-category-bg {
            position: absolute; inset: 0;
            background: url('/assets/images/backpic/back-2.webp') center center / cover no-repeat;
            opacity: 0.25;
            mask-image: linear-gradient(to bottom, rgba(0,0,0,0.8) 0%, rgba(0,0,0,0) 100%);
            -webkit-mask-image: linear-gradient(to bottom, rgba(0,0,0,0.8) 0%, rgba(0,0,0,0) 100%);
        }
        .hero-category .overlay {
            position: absolute; inset: 0;
            background: linear-gradient(135deg, rgba(8,12,26,0.85) 0%, rgba(11,15,34,0.6) 50%, rgba(8,12,26,0.85) 100%);
        }
        .hero-category .grid-x { position: relative; z-index: 2; width: 100%; }
        .hero-category h1 {
            font-size: 48px; line-height: 56px;
            font-weight: 900;
            background: linear-gradient(135deg, #fff 50%, rgba(0,212,255,0.8));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            margin-bottom: 16px;
        }
        .hero-category .hero-desc {
            font-size: 18px; line-height: 30px;
            color: var(--text-secondary);
            max-width: 600px;
            margin-bottom: 24px;
        }
        .hero-category .hero-meta {
            display: flex; flex-wrap: wrap; gap: 24px 40px;
            margin-top: 8px;
        }
        .hero-category .hero-meta-item {
            display: flex; align-items: center; gap: 8px;
            font-size: 14px; color: var(--text-muted);
        }
        .hero-category .hero-meta-item i { color: var(--accent); font-size: 18px; }
        .hero-category .breadcrumb {
            font-size: 14px; color: var(--text-muted);
            margin-bottom: 20px;
            display: flex; flex-wrap: wrap; gap: 6px;
        }
        .hero-category .breadcrumb a { color: var(--text-muted); }
        .hero-category .breadcrumb a:hover { color: var(--primary); }
        .hero-category .breadcrumb span { color: var(--text-secondary); }
        .hero-category .breadcrumb .sep { color: var(--text-muted); margin: 0 4px; }
        @media (max-width: 1023px) {
            .hero-category h1 { font-size: 38px; line-height: 46px; }
            .hero-category .hero-desc { font-size: 16px; line-height: 26px; }
        }
        @media (max-width: 767px) {
            .hero-category { min-height: 300px; padding: calc(var(--nav-height) + 24px) 0 40px; }
            .hero-category h1 { font-size: 30px; line-height: 38px; }
            .hero-category .hero-desc { font-size: 15px; line-height: 24px; }
            .hero-category .hero-meta { gap: 16px 24px; }
        }

        /* ===== Featured Games ===== */
        .game-card {
            background: linear-gradient(135deg, rgba(255,255,255,0.04) 0%, rgba(13,18,36,0.75) 100%);
            backdrop-filter: blur(24px) saturate(1.1);
            -webkit-backdrop-filter: blur(24px) saturate(1.1);
            border: 1px solid var(--glass-border);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-card), inset 0 1px 0 rgba(255,255,255,0.06);
            overflow: hidden;
            transition: all 0.4s ease;
            height: 100%;
            display: flex; flex-direction: column;
        }
        .game-card:hover {
            border-color: rgba(255,255,255,0.15);
            transform: translateY(-8px);
            box-shadow: 0 20px 60px rgba(0,0,0,0.5), 0 0 40px rgba(26,107,255,0.08);
        }
        .game-card .card-img {
            position: relative;
            aspect-ratio: 16/9;
            overflow: hidden;
            border-radius: var(--radius-lg) var(--radius-lg) 0 0;
        }
        .game-card .card-img img {
            width: 100%; height: 100%;
            object-fit: cover;
            transition: transform 0.6s ease;
        }
        .game-card:hover .card-img img { transform: scale(1.05); }
        .game-card .card-img .badge-pos {
            position: absolute; top: 12px; left: 12px;
            display: flex; gap: 6px; flex-wrap: wrap;
        }
        .game-card .card-body {
            padding: 20px 24px 24px;
            flex: 1;
            display: flex; flex-direction: column;
        }
        .game-card .card-body h4 {
            font-size: 20px; line-height: 28px;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--text-primary);
        }
        .game-card .card-body p {
            font-size: 14px; line-height: 22px;
            color: var(--text-secondary);
            margin-bottom: 16px;
            flex: 1;
        }
        .game-card .card-footer {
            display: flex; align-items: center;
            justify-content: space-between;
            padding-top: 12px;
            border-top: 1px solid rgba(255,255,255,0.06);
        }
        .game-card .card-footer .badge-group { display: flex; gap: 6px; flex-wrap: wrap; }
        .game-card .card-footer a {
            font-size: 14px; font-weight: 600;
            color: var(--primary);
            transition: color 0.3s ease;
        }
        .game-card .card-footer a:hover { color: var(--accent); }
        @media (max-width: 767px) {
            .game-card .card-body { padding: 16px 18px 18px; }
            .game-card .card-body h4 { font-size: 18px; line-height: 24px; }
        }

        /* ===== Features Strip ===== */
        .feature-item {
            text-align: center;
            padding: 32px 20px;
            border-radius: var(--radius-lg);
            background: linear-gradient(135deg, rgba(255,255,255,0.03) 0%, rgba(13,18,36,0.6) 100%);
            border: 1px solid rgba(255,255,255,0.05);
            transition: all 0.4s ease;
            height: 100%;
        }
        .feature-item:hover {
            border-color: rgba(26,107,255,0.2);
            transform: translateY(-4px);
            box-shadow: 0 12px 40px rgba(0,0,0,0.3);
        }
        .feature-item .icon-wrap {
            width: 64px; height: 64px;
            border-radius: 16px;
            background: linear-gradient(135deg, rgba(26,107,255,0.15), rgba(136,51,255,0.15));
            border: 1px solid rgba(26,107,255,0.15);
            display: flex; align-items: center; justify-content: center;
            margin: 0 auto 20px;
            font-size: 28px;
            color: var(--accent);
            transition: all 0.4s ease;
        }
        .feature-item:hover .icon-wrap {
            background: linear-gradient(135deg, rgba(26,107,255,0.25), rgba(136,51,255,0.25));
            border-color: var(--primary);
            box-shadow: 0 0 30px rgba(26,107,255,0.15);
        }
        .feature-item h5 {
            font-size: 20px; line-height: 28px;
            font-weight: 700;
            margin-bottom: 8px;
        }
        .feature-item p {
            font-size: 14px; line-height: 22px;
            color: var(--text-secondary);
        }
        @media (max-width: 767px) {
            .feature-item { padding: 24px 16px; }
            .feature-item .icon-wrap { width: 52px; height: 52px; font-size: 22px; }
            .feature-item h5 { font-size: 18px; }
        }

        /* ===== Process Steps ===== */
        .process-step {
            display: flex; gap: 20px;
            align-items: flex-start;
            padding: 24px;
            border-radius: var(--radius-card);
            background: rgba(255,255,255,0.02);
            border: 1px solid rgba(255,255,255,0.04);
            transition: all 0.3s ease;
            margin-bottom: 16px;
        }
        .process-step:hover {
            border-color: rgba(26,107,255,0.15);
            background: rgba(26,107,255,0.04);
        }
        .process-step .step-num {
            flex-shrink: 0;
            width: 44px; height: 44px;
            border-radius: 12px;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            display: flex; align-items: center; justify-content: center;
            font-size: 18px; font-weight: 800;
            color: #fff;
            font-family: var(--font-mono);
        }
        .process-step .step-content { flex: 1; }
        .process-step .step-content h5 {
            font-size: 18px; line-height: 26px;
            font-weight: 700;
            margin-bottom: 4px;
        }
        .process-step .step-content p {
            font-size: 14px; line-height: 22px;
            color: var(--text-secondary);
        }
        @media (max-width: 767px) {
            .process-step { padding: 18px; gap: 14px; }
            .process-step .step-num { width: 38px; height: 38px; font-size: 16px; }
        }

        /* ===== Testimonials ===== */
        .testimonial-card {
            padding: 28px 24px;
            border-radius: var(--radius-lg);
            background: linear-gradient(135deg, rgba(255,255,255,0.03) 0%, rgba(13,18,36,0.6) 100%);
            border: 1px solid rgba(255,255,255,0.05);
            transition: all 0.4s ease;
            height: 100%;
            display: flex; flex-direction: column;
        }
        .testimonial-card:hover {
            border-color: rgba(136,51,255,0.2);
            box-shadow: 0 8px 32px rgba(0,0,0,0.3);
        }
        .testimonial-card .stars {
            color: #FFD700;
            font-size: 14px;
            letter-spacing: 2px;
            margin-bottom: 12px;
        }
        .testimonial-card blockquote {
            font-size: 15px; line-height: 24px;
            color: var(--text-body);
            margin-bottom: 16px;
            flex: 1;
            font-style: italic;
            border-left: 3px solid var(--secondary);
            padding-left: 16px;
        }
        .testimonial-card .author {
            display: flex; align-items: center; gap: 12px;
            padding-top: 12px;
            border-top: 1px solid rgba(255,255,255,0.05);
        }
        .testimonial-card .author .avatar {
            width: 40px; height: 40px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            display: flex; align-items: center; justify-content: center;
            color: #fff; font-size: 16px; font-weight: 700;
        }
        .testimonial-card .author .info { flex: 1; }
        .testimonial-card .author .info .name { font-size: 14px; font-weight: 600; color: var(--text-primary); }
        .testimonial-card .author .info .role { font-size: 12px; color: var(--text-muted); }
        @media (max-width: 767px) {
            .testimonial-card { padding: 20px 18px; }
            .testimonial-card blockquote { font-size: 14px; line-height: 22px; }
        }

        /* ===== CTA Section ===== */
        .cta-section {
            position: relative;
            padding: 80px 0;
            background: var(--bg-section);
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute; inset: 0;
            background: url('/assets/images/backpic/back-3.png') center center / cover no-repeat;
            opacity: 0.08;
        }
        .cta-section .cta-inner {
            position: relative; z-index: 2;
            text-align: center;
            max-width: 700px; margin: 0 auto;
        }
        .cta-section h2 {
            font-size: 36px; line-height: 44px;
            font-weight: 800;
            margin-bottom: 16px;
            background: linear-gradient(135deg, #fff 60%, rgba(255,255,255,0.6));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .cta-section p {
            font-size: 16px; line-height: 26px;
            color: var(--text-secondary);
            margin-bottom: 32px;
        }
        .cta-section .btn-group { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }
        @media (max-width: 767px) {
            .cta-section { padding: 48px 0; }
            .cta-section h2 { font-size: 28px; line-height: 36px; }
            .cta-section p { font-size: 15px; }
            .cta-section .btn-group { flex-direction: column; align-items: center; }
        }

        /* ===== FAQ Accordion ===== */
        .faq-list { max-width: 800px; margin: 0 auto; }
        .faq-item {
            border-bottom: 1px solid rgba(255,255,255,0.06);
            padding: 4px 0;
        }
        .faq-item:first-child { border-top: 1px solid rgba(255,255,255,0.06); }
        .faq-question {
            display: flex; align-items: center; justify-content: space-between;
            width: 100%;
            background: none; border: none;
            padding: 20px 8px;
            font-size: 18px; line-height: 26px;
            font-weight: 600;
            color: var(--text-primary);
            cursor: pointer;
            text-align: left;
            transition: color 0.3s ease;
            font-family: var(--font-sans);
        }
        .faq-question:hover { color: var(--primary); }
        .faq-question .icon {
            flex-shrink: 0;
            font-size: 20px;
            color: var(--text-muted);
            transition: transform 0.3s ease, color 0.3s ease;
            margin-left: 16px;
        }
        .faq-item.open .faq-question .icon { transform: rotate(180deg); color: var(--primary); }
        .faq-answer {
            max-height: 0; overflow: hidden;
            transition: max-height 0.4s ease, padding 0.4s ease;
            padding: 0 8px;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 8px 20px;
        }
        .faq-answer p {
            font-size: 16px; line-height: 26px;
            color: var(--text-secondary);
        }
        @media (max-width: 767px) {
            .faq-question { font-size: 16px; padding: 16px 4px; }
            .faq-answer p { font-size: 15px; }
        }

        /* ===== Footer ===== */
        .site-footer {
            background: #060A15;
            padding: 60px 0 24px;
            border-top: 1px solid rgba(255,255,255,0.04);
        }
        .site-footer .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.5fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .site-footer .footer-logo {
            display: flex; align-items: center; gap: 10px;
            font-size: 20px; font-weight: 800;
            background: linear-gradient(135deg, #1A6BFF, #8833FF);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            margin-bottom: 16px;
        }
        .site-footer .footer-logo i { -webkit-text-fill-color: initial; color: var(--primary); }
        .site-footer .footer-col p {
            font-size: 14px; line-height: 22px;
            color: rgba(255,255,255,0.5);
            margin-bottom: 0;
        }
        .site-footer .footer-col h5 {
            font-size: 16px; font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 16px;
        }
        .site-footer .footer-col ul { display: flex; flex-direction: column; gap: 8px; }
        .site-footer .footer-col ul li {
            font-size: 14px;
            color: rgba(255,255,255,0.5);
        }
        .site-footer .footer-col ul li a { color: rgba(255,255,255,0.5); transition: color 0.3s ease; }
        .site-footer .footer-col ul li a:hover { color: var(--primary); }
        .site-footer .social-links { display: flex; gap: 12px; margin-top: 16px; }
        .site-footer .social-links a {
            width: 36px; height: 36px;
            border-radius: 10px;
            background: rgba(255,255,255,0.06);
            border: 1px solid rgba(255,255,255,0.08);
            display: flex; align-items: center; justify-content: center;
            color: rgba(255,255,255,0.5);
            font-size: 16px;
            transition: all 0.3s ease;
        }
        .site-footer .social-links a:hover {
            background: var(--primary); color: #fff;
            border-color: var(--primary);
            transform: translateY(-2px);
        }
        .site-footer .footer-bottom {
            display: flex; flex-wrap: wrap;
            justify-content: space-between; align-items: center;
            padding-top: 24px;
            border-top: 1px solid rgba(255,255,255,0.05);
            font-size: 13px;
            color: rgba(255,255,255,0.35);
        }
        .site-footer .footer-bottom a { color: rgba(255,255,255,0.35); }
        .site-footer .footer-bottom a:hover { color: var(--primary); }
        .site-footer .footer-bottom span { margin: 4px 0; }
        @media (max-width: 1023px) {
            .site-footer .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
        }
        @media (max-width: 767px) {
            .site-footer { padding: 40px 0 20px; }
            .site-footer .footer-grid { grid-template-columns: 1fr; gap: 28px; }
            .site-footer .footer-bottom { flex-direction: column; gap: 8px; text-align: center; }
        }

        /* ===== Utility ===== */
        .text-glow { text-shadow: 0 0 20px rgba(26,107,255,0.3); }
        .text-accent { color: var(--accent); }
        .text-primary { color: var(--primary); }
        .mt-16 { margin-top: 16px; }
        .mb-16 { margin-bottom: 16px; }
        .gap-24 { gap: 24px; }
        .gap-16 { gap: 16px; }
        .flex-center { display: flex; align-items: center; justify-content: center; }

        /* ===== Responsive Grid Overrides ===== */
        @media (max-width: 1023px) {
            .medium-6 { width: 50%; }
        }
        @media (max-width: 767px) {
            .small-12 { width: 100%; }
            .cell { padding: 0 8px; }
        }

        /* ===== Floating Particles Animation ===== */
        @keyframes float {
            0%,100% { transform: translateY(0) rotate(0deg); }
            33% { transform: translateY(-12px) rotate(1deg); }
            66% { transform: translateY(6px) rotate(-1deg); }
        }
        .float-anim { animation: float 8s ease-in-out infinite; }
        .float-anim-delayed { animation: float 10s ease-in-out infinite 2s; }

        /* ===== Scrollbar ===== */
        ::-webkit-scrollbar { width: 6px; }
        ::-webkit-scrollbar-track { background: var(--bg-deep); }
        ::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.12); border-radius: 8px; }
        ::-webkit-scrollbar-thumb:hover { background: rgba(255,255,255,0.2); }

/* roulang page: category3 */
/* ===== CSS Variables ===== */
        :root {
            --primary: #1A6BFF;
            --primary-dark: #0D4FBF;
            --secondary: #8833FF;
            --accent: #00D4FF;
            --bg-deep: #080C1A;
            --bg-section: #0B0F22;
            --glass-bg: rgba(255,255,255,0.04);
            --glass-border: rgba(255,255,255,0.08);
            --glass-blur: 24px;
            --text-primary: #FFFFFF;
            --text-body: rgba(255,255,255,0.88);
            --text-secondary: rgba(255,255,255,0.62);
            --text-muted: rgba(255,255,255,0.35);
            --radius-card: 16px;
            --radius-btn: 12px;
            --radius-panel: 24px;
            --radius-sm: 8px;
            --shadow-card: 0 8px 32px rgba(0,0,0,0.4);
            --shadow-glow: 0 0 30px rgba(26,107,255,0.35);
            --shadow-glow-purple: 0 0 30px rgba(136,51,255,0.3);
            --font-sans: 'PingFang SC','Microsoft YaHei','Noto Sans SC',sans-serif;
            --font-mono: 'JetBrains Mono','Courier New',monospace;
            --nav-height: 72px;
            --container-max: 1280px;
            --section-padding: 80px;
            --section-padding-mobile: 48px;
            --transition: 0.3s ease;
        }

        /* ===== Reset & Base ===== */
        *,*::before,*::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
        body {
            font-family: var(--font-sans);
            background: var(--bg-deep);
            color: var(--text-body);
            line-height: 1.6;
            font-size: 16px;
            overflow-x: hidden;
            min-height: 100vh;
        }
        a { color: var(--primary); text-decoration: none; transition: color var(--transition); }
        a:hover { color: var(--accent); }
        img { max-width: 100%; height: auto; display: block; aspect-ratio: auto; }
        ul, ol { list-style: none; }
        h1, h2, h3, h4, h5, h6 { font-family: var(--font-sans); font-weight: 700; color: var(--text-primary); line-height: 1.2; }
        .container { max-width: var(--container-max); margin: 0 auto; padding: 0 24px; }
        @media screen and (max-width: 767px) { .container { padding: 0 16px; } }

        /* ===== Glass Mixin ===== */
        .glass {
            background: rgba(255,255,255,0.04);
            backdrop-filter: blur(var(--glass-blur)) saturate(1.1);
            -webkit-backdrop-filter: blur(var(--glass-blur)) saturate(1.1);
            border: 1px solid var(--glass-border);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card), inset 0 1px 0 rgba(255,255,255,0.06);
            transition: border-color var(--transition), box-shadow var(--transition);
        }
        .glass:hover {
            border-color: rgba(255,255,255,0.15);
            box-shadow: 0 12px 48px rgba(0,0,0,0.5), inset 0 1px 0 rgba(255,255,255,0.1);
        }
        .glass-panel {
            background: rgba(13,18,36,0.75);
            backdrop-filter: blur(var(--glass-blur)) saturate(1.1);
            -webkit-backdrop-filter: blur(var(--glass-blur)) saturate(1.1);
            border: 1px solid var(--glass-border);
            border-radius: var(--radius-panel);
            box-shadow: var(--shadow-card), inset 0 1px 0 rgba(255,255,255,0.06);
        }

        /* ===== Buttons ===== */
        .btn-primary {
            display: inline-flex; align-items: center; gap: 8px;
            background: linear-gradient(90deg, #1A6BFF, #8833FF);
            color: #fff; font-weight: 700; padding: 14px 36px;
            border-radius: var(--radius-btn); border: none;
            box-shadow: 0 0 30px rgba(26,107,255,0.35), 0 4px 16px rgba(0,0,0,0.3);
            cursor: pointer; transition: all var(--transition);
            font-size: 16px; line-height: 1; font-family: var(--font-sans);
        }
        .btn-primary:hover {
            background: linear-gradient(90deg, #8833FF, #1A6BFF);
            box-shadow: 0 0 50px rgba(26,107,255,0.55), 0 6px 24px rgba(0,0,0,0.4);
            color: #fff; transform: translateY(-2px);
        }
        .btn-primary:active { transform: scale(0.97); box-shadow: 0 0 20px rgba(26,107,255,0.25); }
        .btn-secondary {
            display: inline-flex; align-items: center; gap: 8px;
            background: rgba(255,255,255,0.04);
            backdrop-filter: blur(16px) saturate(1.1);
            -webkit-backdrop-filter: blur(16px) saturate(1.1);
            color: var(--primary); font-weight: 600; padding: 14px 36px;
            border-radius: var(--radius-btn); border: 1px solid rgba(26,107,255,0.3);
            cursor: pointer; transition: all var(--transition);
            font-size: 16px; line-height: 1; font-family: var(--font-sans);
        }
        .btn-secondary:hover {
            border-color: var(--primary); color: var(--accent);
            background: rgba(255,255,255,0.08); transform: translateY(-2px);
        }
        .btn-secondary:active { transform: scale(0.97); }

        /* ===== Navigation ===== */
        .site-header {
            position: fixed; top: 0; left: 0; width: 100%; z-index: 1000;
            background: rgba(11,15,34,0.92);
            backdrop-filter: blur(30px) saturate(1.2);
            -webkit-backdrop-filter: blur(30px) saturate(1.2);
            border-bottom: 1px solid rgba(255,255,255,0.06);
            height: var(--nav-height); transition: background var(--transition);
        }
        .site-header .container {
            display: flex; align-items: center; justify-content: space-between;
            height: 100%; max-width: var(--container-max); margin: 0 auto;
            padding: 0 24px;
        }
        .logo-text {
            font-size: 24px; font-weight: 800; letter-spacing: 1px;
            background: linear-gradient(135deg, #1A6BFF, #8833FF);
            -webkit-background-clip: text; -webkit-text-fill-color: transparent;
            background-clip: text; display: flex; align-items: center; gap: 10px;
        }
        .logo-text .logo-icon { font-size: 26px; -webkit-text-fill-color: #1A6BFF; color: #1A6BFF; }
        .nav-links { display: flex; align-items: center; gap: 32px; }
        .nav-links li a {
            font-size: 15px; font-weight: 500; color: var(--text-secondary);
            padding: 6px 0; position: relative; transition: color var(--transition);
            letter-spacing: 0.3px;
        }
        .nav-links li a::after {
            content: ''; position: absolute; bottom: -2px; left: 0; width: 0;
            height: 2px; background: linear-gradient(90deg, #1A6BFF, #8833FF);
            border-radius: 2px; transition: width var(--transition);
        }
        .nav-links li a:hover { color: var(--text-primary); }
        .nav-links li a:hover::after { width: 100%; }
        .nav-links li a.active { color: var(--text-primary); }
        .nav-links li a.active::after { width: 100%; }
        .nav-cta {
            display: inline-flex; align-items: center; gap: 8px;
            background: linear-gradient(90deg, #1A6BFF, #8833FF);
            color: #fff; font-weight: 700; padding: 10px 24px;
            border-radius: var(--radius-btn); border: none;
            box-shadow: 0 0 20px rgba(26,107,255,0.3);
            transition: all var(--transition); font-size: 14px; font-family: var(--font-sans);
        }
        .nav-cta:hover {
            background: linear-gradient(90deg, #8833FF, #1A6BFF);
            box-shadow: 0 0 40px rgba(26,107,255,0.5);
            color: #fff; transform: translateY(-1px);
        }
        .hamburger {
            display: none; background: none; border: none; color: var(--text-primary);
            font-size: 24px; cursor: pointer; padding: 8px; line-height: 1;
            transition: color var(--transition);
        }
        .hamburger:hover { color: var(--primary); }

        /* ===== Mobile Nav Overlay ===== */
        .mobile-nav-overlay {
            display: none; position: fixed; top: var(--nav-height); left: 0; width: 100%;
            background: rgba(11,15,34,0.98);
            backdrop-filter: blur(32px) saturate(1.2);
            -webkit-backdrop-filter: blur(32px) saturate(1.2);
            z-index: 999; padding: 24px 16px; border-top: 1px solid rgba(255,255,255,0.06);
            box-shadow: 0 24px 48px rgba(0,0,0,0.6);
        }
        .mobile-nav-overlay.open { display: block; }
        .mobile-nav-overlay ul { display: flex; flex-direction: column; gap: 8px; }
        .mobile-nav-overlay ul li a {
            display: block; font-size: 20px; font-weight: 600; color: var(--text-secondary);
            padding: 14px 16px; border-radius: var(--radius-sm);
            transition: background var(--transition), color var(--transition);
        }
        .mobile-nav-overlay ul li a:hover,
        .mobile-nav-overlay ul li a.active { background: rgba(255,255,255,0.06); color: var(--text-primary); }

        /* ===== Hero (分类页小尺寸) ===== */
        .category-hero {
            position: relative; min-height: 360px; display: flex; align-items: center;
            justify-content: center; text-align: center; padding: 120px 24px 60px;
            background: linear-gradient(135deg, #0B0F22 0%, #1a1040 50%, #0B0F22 100%);
            overflow: hidden;
        }
        .category-hero::before {
            content: ''; position: absolute; top: 0; left: 0; width: 100%; height: 100%;
            background: url('/assets/images/backpic/back-1.webp') center center / cover no-repeat;
            opacity: 0.2; z-index: 0;
        }
        .category-hero::after {
            content: ''; position: absolute; top: 0; left: 0; width: 100%; height: 100%;
            background: linear-gradient(135deg, rgba(11,15,34,0.85) 0%, rgba(26,16,64,0.7) 100%);
            z-index: 1;
        }
        .category-hero .hero-content { position: relative; z-index: 2; max-width: 800px; }
        .category-hero .hero-content h1 {
            font-size: 52px; font-weight: 800; color: var(--text-primary);
            text-shadow: 0 0 40px rgba(136,51,255,0.3);
            letter-spacing: 2px; margin-bottom: 16px;
        }
        .category-hero .hero-content p {
            font-size: 18px; color: var(--text-secondary);
            line-height: 1.7; max-width: 600px; margin: 0 auto;
        }
        .category-hero .hero-badge {
            display: inline-flex; align-items: center; gap: 6px;
            background: rgba(136,51,255,0.2); border: 1px solid rgba(136,51,255,0.3);
            color: var(--accent); padding: 6px 18px; border-radius: 20px;
            font-size: 14px; font-weight: 600; margin-bottom: 20px;
            backdrop-filter: blur(8px);
        }

        /* ===== Section Spacing ===== */
        .section { padding: var(--section-padding) 0; }
        .section-title {
            text-align: center; margin-bottom: 48px;
        }
        .section-title h2 {
            font-size: 38px; font-weight: 800; color: var(--text-primary);
            letter-spacing: 1px; margin-bottom: 12px;
        }
        .section-title p {
            font-size: 16px; color: var(--text-secondary);
            max-width: 600px; margin: 0 auto; line-height: 1.7;
        }
        .section-title .title-accent {
            display: inline-block; width: 60px; height: 3px;
            background: linear-gradient(90deg, #1A6BFF, #8833FF);
            border-radius: 4px; margin-top: 12px;
        }
        @media screen and (max-width: 767px) {
            .section { padding: var(--section-padding-mobile) 0; }
            .section-title h2 { font-size: 28px; }
        }

        /* ===== Stats Bar ===== */
        .stats-grid {
            display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px;
        }
        .stat-card {
            text-align: center; padding: 32px 16px;
            background: rgba(255,255,255,0.04);
            backdrop-filter: blur(16px) saturate(1.1);
            border: 1px solid var(--glass-border);
            border-radius: var(--radius-card);
            transition: all var(--transition);
        }
        .stat-card:hover {
            border-color: rgba(26,107,255,0.2);
            box-shadow: 0 8px 32px rgba(0,0,0,0.3);
        }
        .stat-card .stat-number {
            font-family: var(--font-mono); font-size: 48px; font-weight: 700;
            color: var(--accent); text-shadow: 0 0 20px rgba(0,212,255,0.2);
            line-height: 1.1; margin-bottom: 8px;
        }
        .stat-card .stat-label {
            font-size: 15px; color: var(--text-secondary); font-weight: 500;
        }
        @media screen and (max-width: 1023px) { .stats-grid { grid-template-columns: repeat(2, 1fr); } }
        @media screen and (max-width: 520px) { .stats-grid { grid-template-columns: 1fr; } }

        /* ===== Benefit Cards Grid ===== */
        .benefit-grid {
            display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px;
        }
        .benefit-card {
            background: rgba(255,255,255,0.04);
            backdrop-filter: blur(20px) saturate(1.1);
            border: 1px solid var(--glass-border);
            border-radius: var(--radius-card);
            padding: 32px 24px 24px;
            transition: all var(--transition); position: relative; overflow: hidden;
        }
        .benefit-card::before {
            content: ''; position: absolute; top: -2px; left: -2px; width: 60%; height: 60%;
            background: linear-gradient(135deg, rgba(26,107,255,0.15), rgba(136,51,255,0.05));
            border-radius: 50%; filter: blur(40px); pointer-events: none;
        }
        .benefit-card:hover {
            border-color: rgba(255,255,255,0.15);
            transform: translateY(-4px);
            box-shadow: 0 12px 48px rgba(0,0,0,0.5), 0 0 30px rgba(136,51,255,0.1);
        }
        .benefit-card .card-icon {
            font-size: 40px; margin-bottom: 16px; display: block;
            background: linear-gradient(135deg, #1A6BFF, #8833FF);
            -webkit-background-clip: text; -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .benefit-card h4 { font-size: 20px; font-weight: 700; margin-bottom: 10px; color: var(--text-primary); }
        .benefit-card p { font-size: 14px; color: var(--text-secondary); line-height: 1.6; margin-bottom: 16px; }
        .benefit-card .card-tag {
            display: inline-block; font-size: 12px; font-weight: 600;
            padding: 4px 14px; border-radius: 20px;
            background: rgba(0,212,255,0.1); border: 1px solid rgba(0,212,255,0.2);
            color: var(--accent);
        }
        @media screen and (max-width: 1023px) { .benefit-grid { grid-template-columns: repeat(2, 1fr); } }
        @media screen and (max-width: 520px) { .benefit-grid { grid-template-columns: 1fr; } }

        /* ===== Process Steps ===== */
        .process-grid {
            display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px;
            counter-reset: step;
        }
        .process-step {
            text-align: center; padding: 32px 16px; position: relative;
            background: rgba(255,255,255,0.03);
            border: 1px solid var(--glass-border);
            border-radius: var(--radius-card);
            transition: all var(--transition);
        }
        .process-step:hover {
            border-color: rgba(26,107,255,0.2);
            transform: translateY(-2px);
        }
        .process-step .step-num {
            width: 48px; height: 48px; line-height: 48px; border-radius: 50%;
            background: linear-gradient(135deg, #1A6BFF, #8833FF);
            color: #fff; font-size: 20px; font-weight: 700; font-family: var(--font-mono);
            margin: 0 auto 16px; box-shadow: 0 0 20px rgba(26,107,255,0.25);
        }
        .process-step h5 { font-size: 18px; font-weight: 700; margin-bottom: 8px; color: var(--text-primary); }
        .process-step p { font-size: 14px; color: var(--text-secondary); line-height: 1.6; }
        @media screen and (max-width: 1023px) { .process-grid { grid-template-columns: repeat(2, 1fr); } }
        @media screen and (max-width: 520px) { .process-grid { grid-template-columns: 1fr; } }

        /* ===== Testimonials ===== */
        .testimonial-grid {
            display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px;
        }
        .testimonial-card {
            background: rgba(255,255,255,0.04);
            backdrop-filter: blur(16px) saturate(1.1);
            border: 1px solid var(--glass-border);
            border-radius: var(--radius-card);
            padding: 28px 24px; transition: all var(--transition);
        }
        .testimonial-card:hover {
            border-color: rgba(255,255,255,0.12);
            box-shadow: 0 8px 32px rgba(0,0,0,0.3);
        }
        .testimonial-card .stars { color: #FFD700; font-size: 14px; margin-bottom: 12px; letter-spacing: 2px; }
        .testimonial-card blockquote {
            font-size: 15px; color: var(--text-body); line-height: 1.7;
            font-style: italic; margin-bottom: 16px; padding: 0; border: none;
        }
        .testimonial-card .author {
            display: flex; align-items: center; gap: 12px;
        }
        .testimonial-card .author .avatar {
            width: 40px; height: 40px; border-radius: 50%;
            background: linear-gradient(135deg, #1A6BFF, #8833FF);
            display: flex; align-items: center; justify-content: center;
            font-size: 18px; color: #fff; font-weight: 700;
        }
        .testimonial-card .author .name { font-size: 14px; font-weight: 600; color: var(--text-primary); }
        .testimonial-card .author .game { font-size: 12px; color: var(--text-muted); }
        @media screen and (max-width: 1023px) { .testimonial-grid { grid-template-columns: repeat(2, 1fr); } }
        @media screen and (max-width: 520px) { .testimonial-grid { grid-template-columns: 1fr; } }

        /* ===== FAQ (Accordion) ===== */
        .faq-container { max-width: 800px; margin: 0 auto; }
        .accordion-item {
            background: rgba(255,255,255,0.03);
            border: 1px solid var(--glass-border);
            border-radius: var(--radius-card);
            margin-bottom: 12px; overflow: hidden;
            transition: border-color var(--transition);
        }
        .accordion-item:hover { border-color: rgba(255,255,255,0.1); }
        .accordion-title {
            display: flex; align-items: center; justify-content: space-between;
            padding: 18px 24px; font-size: 17px; font-weight: 600;
            color: var(--text-primary); cursor: pointer;
            background: transparent; border: none; width: 100%; text-align: left;
            font-family: var(--font-sans); transition: color var(--transition);
        }
        .accordion-title:hover { color: var(--accent); }
        .accordion-title .fa-chevron-down {
            transition: transform var(--transition); font-size: 14px; color: var(--text-muted);
        }
        .accordion-item.is-active .accordion-title .fa-chevron-down { transform: rotate(180deg); }
        .accordion-content {
            padding: 0 24px 18px; color: var(--text-secondary); font-size: 15px;
            line-height: 1.7; display: none;
        }
        .accordion-item.is-active .accordion-content { display: block; }
        .accordion-content p { margin-bottom: 0; }

        /* ===== CTA Section ===== */
        .cta-section {
            background: linear-gradient(135deg, rgba(11,15,34,0.95), rgba(26,16,64,0.8));
            border-top: 1px solid rgba(255,255,255,0.05);
            border-bottom: 1px solid rgba(255,255,255,0.05);
            text-align: center; padding: 80px 24px;
        }
        .cta-section h2 {
            font-size: 38px; font-weight: 800; margin-bottom: 16px;
            text-shadow: 0 0 30px rgba(136,51,255,0.2);
        }
        .cta-section p { font-size: 18px; color: var(--text-secondary); margin-bottom: 32px; max-width: 600px; margin-left: auto; margin-right: auto; }
        .cta-section .btn-primary { font-size: 18px; padding: 16px 48px; }
        @media screen and (max-width: 767px) {
            .cta-section { padding: 56px 16px; }
            .cta-section h2 { font-size: 28px; }
        }

        /* ===== Footer ===== */
        .site-footer {
            background: #060A15; padding: 60px 0 30px;
            border-top: 1px solid rgba(255,255,255,0.04);
        }
        .footer-grid {
            display: grid; grid-template-columns: 2fr 1fr 1fr 1.5fr; gap: 40px;
            margin-bottom: 40px;
        }
        .footer-col .footer-logo {
            font-size: 22px; font-weight: 800;
            background: linear-gradient(135deg, #1A6BFF, #8833FF);
            -webkit-background-clip: text; -webkit-text-fill-color: transparent;
            background-clip: text; display: inline-block; margin-bottom: 16px;
        }
        .footer-col .footer-logo .fa-gamepad { -webkit-text-fill-color: #1A6BFF; color: #1A6BFF; margin-right: 8px; }
        .footer-col p { font-size: 14px; color: var(--text-muted); line-height: 1.7; margin-bottom: 0; }
        .footer-col h5 {
            font-size: 16px; font-weight: 700; color: var(--text-primary);
            margin-bottom: 18px; letter-spacing: 0.5px;
        }
        .footer-col ul li { margin-bottom: 10px; }
        .footer-col ul li a { font-size: 14px; color: var(--text-muted); transition: color var(--transition); }
        .footer-col ul li a:hover { color: var(--primary); }
        .footer-col ul li i { color: var(--text-muted); font-size: 14px; }
        .social-links { display: flex; gap: 16px; margin-top: 16px; }
        .social-links a {
            display: inline-flex; align-items: center; justify-content: center;
            width: 40px; height: 40px; border-radius: 50%;
            background: rgba(255,255,255,0.06); color: var(--text-muted);
            font-size: 18px; transition: all var(--transition);
        }
        .social-links a:hover { background: rgba(26,107,255,0.2); color: var(--primary); transform: translateY(-2px); }
        .footer-bottom {
            display: flex; justify-content: space-between; align-items: center;
            padding-top: 24px; border-top: 1px solid rgba(255,255,255,0.05);
            font-size: 13px; color: var(--text-muted); flex-wrap: wrap; gap: 12px;
        }
        .footer-bottom a { color: var(--text-muted); transition: color var(--transition); }
        .footer-bottom a:hover { color: var(--primary); }
        @media screen and (max-width: 1023px) { .footer-grid { grid-template-columns: 1fr 1fr; } }
        @media screen and (max-width: 520px) { .footer-grid { grid-template-columns: 1fr; } .footer-bottom { flex-direction: column; text-align: center; } }

        /* ===== Responsive Nav ===== */
        @media screen and (max-width: 1023px) {
            .nav-links { display: none; }
            .hamburger { display: block; }
            .nav-cta { display: none; }
            .site-header .container { padding: 0 16px; }
            .category-hero { min-height: 300px; padding: 100px 16px 40px; }
            .category-hero .hero-content h1 { font-size: 34px; }
        }
        @media screen and (min-width: 1024px) {
            .mobile-nav-overlay { display: none !important; }
        }

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

        /* ===== Scrollbar ===== */
        ::-webkit-scrollbar { width: 8px; }
        ::-webkit-scrollbar-track { background: var(--bg-deep); }
        ::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.1); border-radius: 4px; }
        ::-webkit-scrollbar-thumb:hover { background: rgba(255,255,255,0.2); }

        /* ===== Floating particles (decoration) ===== */
        .floating-particles {
            position: absolute; top: 0; left: 0; width: 100%; height: 100%;
            pointer-events: none; overflow: hidden; z-index: 1;
        }
        .floating-particles span {
            position: absolute; display: block; width: 6px; height: 6px;
            background: rgba(0,212,255,0.2); border-radius: 50%;
            animation: floatUp 12s infinite linear;
        }
        .floating-particles span:nth-child(1) { left: 10%; bottom: -10%; animation-duration: 14s; animation-delay: 0s; }
        .floating-particles span:nth-child(2) { left: 30%; bottom: -10%; animation-duration: 18s; animation-delay: 2s; width: 8px; height: 8px; background: rgba(136,51,255,0.15); }
        .floating-particles span:nth-child(3) { left: 55%; bottom: -10%; animation-duration: 16s; animation-delay: 4s; }
        .floating-particles span:nth-child(4) { left: 75%; bottom: -10%; animation-duration: 20s; animation-delay: 1s; width: 4px; height: 4px; background: rgba(26,107,255,0.2); }
        .floating-particles span:nth-child(5) { left: 90%; bottom: -10%; animation-duration: 15s; animation-delay: 3s; width: 10px; height: 10px; background: rgba(0,212,255,0.1); }
        @keyframes floatUp {
            0% { transform: translateY(0) scale(1); opacity: 1; }
            100% { transform: translateY(-120vh) scale(0.5); opacity: 0; }
        }