/* roulang page: index */
/* ===== 设计变量 ===== */
        :root {
            --primary: #FF6B35;
            --primary-dark: #E55A2B;
            --primary-light: #FF8C5A;
            --secondary: #1B1A3E;
            --secondary-light: #2D2B55;
            --accent: #F7931E;
            --accent-red: #E74C3C;
            --accent-green: #2ECC71;
            --bg-body: #F5F3F0;
            --bg-card: #FFFFFF;
            --bg-dark: #1B1A3E;
            --bg-section-alt: #F0EDE8;
            --text-primary: #1A1A2E;
            --text-secondary: #4A4A6A;
            --text-muted: #8A8AA0;
            --text-light: #F5F3F0;
            --text-white: #FFFFFF;
            --border-color: #E8E3DE;
            --border-light: #F0EDE8;
            --radius-sm: 8px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --radius-xl: 32px;
            --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
            --shadow-md: 0 8px 30px rgba(0,0,0,0.10);
            --shadow-lg: 0 16px 48px rgba(0,0,0,0.14);
            --shadow-hover: 0 12px 40px rgba(255,107,53,0.20);
            --transition: all 0.30s cubic-bezier(0.4, 0, 0.2, 1);
            --font-family: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
            --max-width: 1200px;
            --header-height: 80px;
        }

        /* ===== 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-family);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-primary);
            background: var(--bg-body);
            min-height: 100vh;
        }
        a { color: var(--primary); text-decoration: none; transition: var(--transition); }
        a:hover, a:focus { color: var(--primary-dark); text-decoration: none; }
        a:focus-visible { outline: 3px solid var(--primary); outline-offset: 2px; border-radius: 4px; }
        img { max-width: 100%; height: auto; display: block; }
        ul, ol { list-style: none; padding: 0; margin: 0; }
        button, input, textarea, select { font-family: inherit; font-size: inherit; outline: none; }
        button { cursor: pointer; border: none; background: none; }
        h1, h2, h3, h4, h5, h6 { font-weight: 700; line-height: 1.25; color: var(--text-primary); }
        h1 { font-size: 2.8rem; }
        h2 { font-size: 2.2rem; }
        h3 { font-size: 1.5rem; }
        h4 { font-size: 1.2rem; }
        p { margin-bottom: 0; color: var(--text-secondary); }
        .container { max-width: var(--max-width); margin: 0 auto; padding: 0 24px; width: 100%; }
        .section-padding { padding: 80px 0; }
        .section-padding-sm { padding: 50px 0; }
        .section-title { text-align: center; margin-bottom: 48px; }
        .section-title h2 { font-size: 2.2rem; margin-bottom: 12px; color: var(--text-primary); }
        .section-title p { font-size: 1.05rem; color: var(--text-muted); max-width: 600px; margin: 0 auto; }

        /* ===== 导航 Header ===== */
        .site-header {
            background: var(--bg-card);
            box-shadow: var(--shadow-sm);
            position: sticky;
            top: 0;
            z-index: 1000;
            height: var(--header-height);
            border-bottom: 1px solid var(--border-light);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
            gap: 20px;
        }
        .logo a {
            font-size: 1.6rem;
            font-weight: 800;
            color: var(--text-primary);
            display: flex;
            align-items: center;
            gap: 8px;
            letter-spacing: -0.5px;
        }
        .logo a i { color: var(--primary); font-size: 1.8rem; }
        .logo a span { color: var(--primary); }
        .logo a:hover { color: var(--primary); }
        .nav-list {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-shrink: 0;
        }
        .nav-list li a {
            display: inline-block;
            padding: 8px 18px;
            border-radius: var(--radius-sm);
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-secondary);
            transition: var(--transition);
            position: relative;
        }
        .nav-list li a:hover {
            color: var(--primary);
            background: rgba(255,107,53,0.08);
        }
        .nav-list li a.active {
            color: var(--text-white);
            background: var(--primary);
            box-shadow: 0 4px 14px rgba(255,107,53,0.30);
        }
        .nav-list li a.active:hover {
            background: var(--primary-dark);
            color: var(--text-white);
        }
        .header-search {
            flex: 1;
            max-width: 420px;
            position: relative;
        }
        .header-search .search-form {
            display: flex;
            align-items: center;
            background: var(--bg-body);
            border-radius: 50px;
            border: 2px solid var(--border-color);
            transition: var(--transition);
            overflow: hidden;
        }
        .header-search .search-form:focus-within {
            border-color: var(--primary);
            box-shadow: 0 0 0 4px rgba(255,107,53,0.12);
        }
        .header-search .search-form i {
            padding: 0 0 0 16px;
            color: var(--text-muted);
            font-size: 0.95rem;
        }
        .header-search .search-form input {
            flex: 1;
            background: transparent;
            border: none;
            padding: 12px 12px 12px 10px;
            font-size: 0.95rem;
            color: var(--text-primary);
            min-width: 0;
        }
        .header-search .search-form input::placeholder { color: var(--text-muted); }
        .header-search .search-form button {
            background: var(--primary);
            color: var(--text-white);
            padding: 10px 22px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.9rem;
            margin: 3px;
            transition: var(--transition);
            white-space: nowrap;
        }
        .header-search .search-form button:hover { background: var(--primary-dark); }
        .mobile-toggle { display: none; font-size: 1.6rem; color: var(--text-primary); padding: 8px; cursor: pointer; }
        .mobile-toggle:hover { color: var(--primary); }

        /* ===== Hero 首屏 ===== */
        .hero {
            background: linear-gradient(135deg, var(--secondary) 0%, var(--secondary-light) 60%, #3A2A5A 100%);
            padding: 100px 0 90px;
            position: relative;
            overflow: hidden;
        }
        .hero::before {
            content: '';
            position: absolute;
            top: -30%;
            right: -10%;
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(255,107,53,0.15) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .hero::after {
            content: '';
            position: absolute;
            bottom: -20%;
            left: -5%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(247,147,30,0.12) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .hero .container { position: relative; z-index: 1; }
        .hero-content { max-width: 780px; margin: 0 auto; text-align: center; }
        .hero-badge {
            display: inline-block;
            background: rgba(255,255,255,0.10);
            backdrop-filter: blur(8px);
            padding: 6px 22px;
            border-radius: 50px;
            font-size: 0.85rem;
            color: var(--text-light);
            border: 1px solid rgba(255,255,255,0.15);
            margin-bottom: 24px;
            letter-spacing: 0.3px;
        }
        .hero-badge i { color: var(--accent); margin-right: 6px; }
        .hero h1 {
            font-size: 3.2rem;
            font-weight: 800;
            color: var(--text-white);
            margin-bottom: 16px;
            letter-spacing: -0.5px;
        }
        .hero h1 span { color: var(--primary); }
        .hero p {
            font-size: 1.15rem;
            color: rgba(255,255,255,0.75);
            max-width: 600px;
            margin: 0 auto 32px;
            line-height: 1.7;
        }
        .hero-actions {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 16px 36px;
            border-radius: 50px;
            font-weight: 700;
            font-size: 1rem;
            transition: var(--transition);
            border: none;
            line-height: 1.2;
        }
        .btn-primary {
            background: var(--primary);
            color: var(--text-white);
            box-shadow: 0 8px 28px rgba(255,107,53,0.35);
        }
        .btn-primary:hover { background: var(--primary-dark); color: var(--text-white); transform: translateY(-2px); box-shadow: 0 12px 36px rgba(255,107,53,0.45); }
        .btn-outline {
            background: transparent;
            color: var(--text-white);
            border: 2px solid rgba(255,255,255,0.30);
        }
        .btn-outline:hover { background: rgba(255,255,255,0.10); border-color: var(--text-white); color: var(--text-white); transform: translateY(-2px); }
        .hero-stats {
            display: flex;
            justify-content: center;
            gap: 40px;
            margin-top: 48px;
            flex-wrap: wrap;
        }
        .hero-stat { text-align: center; }
        .hero-stat .num { font-size: 2rem; font-weight: 800; color: var(--text-white); display: block; }
        .hero-stat .label { font-size: 0.85rem; color: rgba(255,255,255,0.55); margin-top: 4px; }

        /* ===== 特色服务板块 ===== */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .feature-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 32px 24px;
            text-align: center;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            border: 1px solid var(--border-light);
        }
        .feature-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); border-color: var(--primary); }
        .feature-card .icon {
            width: 64px;
            height: 64px;
            border-radius: 50%;
            background: linear-gradient(135deg, rgba(255,107,53,0.12), rgba(247,147,30,0.12));
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 18px;
            font-size: 1.6rem;
            color: var(--primary);
            transition: var(--transition);
        }
        .feature-card:hover .icon { background: var(--primary); color: var(--text-white); }
        .feature-card h3 { font-size: 1.1rem; margin-bottom: 8px; }
        .feature-card p { font-size: 0.9rem; color: var(--text-muted); line-height: 1.6; }

        /* ===== 游戏分类板块 ===== */
        .section-categories { background: var(--bg-section-alt); }
        .category-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .category-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 28px 24px;
            display: flex;
            align-items: center;
            gap: 20px;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            border: 1px solid var(--border-light);
            cursor: pointer;
        }
        .category-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-hover); border-color: var(--primary); }
        .category-card .cat-icon {
            width: 52px;
            height: 52px;
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            flex-shrink: 0;
        }
        .category-card .cat-icon.orange { background: rgba(255,107,53,0.12); color: var(--primary); }
        .category-card .cat-icon.blue { background: rgba(27,26,62,0.10); color: var(--secondary); }
        .category-card .cat-icon.gold { background: rgba(247,147,30,0.12); color: var(--accent); }
        .category-card .cat-icon.green { background: rgba(46,204,113,0.12); color: var(--accent-green); }
        .category-card .cat-icon.red { background: rgba(231,76,60,0.10); color: var(--accent-red); }
        .category-card .cat-icon.purple { background: rgba(155,89,182,0.12); color: #9B59B6; }
        .category-card .cat-info h3 { font-size: 1.05rem; margin-bottom: 4px; }
        .category-card .cat-info p { font-size: 0.85rem; color: var(--text-muted); }
        .category-card .cat-arrow { margin-left: auto; color: var(--text-muted); font-size: 1.1rem; transition: var(--transition); }
        .category-card:hover .cat-arrow { color: var(--primary); transform: translateX(4px); }

        /* ===== 最新资讯 (CMS列表) ===== */
        .news-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }
        .news-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            border: 1px solid var(--border-light);
            display: flex;
            flex-direction: column;
        }
        .news-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-hover); border-color: var(--primary); }
        .news-card .news-img {
            height: 200px;
            background: linear-gradient(135deg, var(--secondary-light), var(--secondary));
            display: flex;
            align-items: center;
            justify-content: center;
            color: rgba(255,255,255,0.20);
            font-size: 2.8rem;
            position: relative;
        }
        .news-card .news-img .tag {
            position: absolute;
            top: 12px;
            left: 12px;
            background: var(--primary);
            color: var(--text-white);
            padding: 4px 14px;
            border-radius: 50px;
            font-size: 0.75rem;
            font-weight: 600;
        }
        .news-card .news-body { padding: 20px 24px 24px; flex: 1; display: flex; flex-direction: column; }
        .news-card .news-body .meta { font-size: 0.8rem; color: var(--text-muted); margin-bottom: 8px; display: flex; gap: 12px; align-items: center; }
        .news-card .news-body .meta i { margin-right: 4px; }
        .news-card .news-body h3 { font-size: 1.1rem; margin-bottom: 8px; line-height: 1.4; }
        .news-card .news-body h3 a { color: var(--text-primary); }
        .news-card .news-body h3 a:hover { color: var(--primary); }
        .news-card .news-body p { font-size: 0.9rem; color: var(--text-muted); line-height: 1.6; flex: 1; }
        .news-card .news-body .read-more {
            margin-top: 16px;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .news-card .news-body .read-more:hover { gap: 10px; }
        .news-empty {
            grid-column: 1 / -1;
            text-align: center;
            padding: 48px 24px;
            background: var(--bg-card);
            border-radius: var(--radius-md);
            color: var(--text-muted);
            font-size: 1rem;
            border: 1px dashed var(--border-color);
        }

        /* ===== 数据统计板块 ===== */
        .stats-section { background: var(--bg-dark); }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .stat-card {
            background: rgba(255,255,255,0.06);
            border-radius: var(--radius-md);
            padding: 36px 24px;
            text-align: center;
            border: 1px solid rgba(255,255,255,0.06);
            transition: var(--transition);
        }
        .stat-card:hover { background: rgba(255,255,255,0.10); transform: translateY(-2px); }
        .stat-card .num { font-size: 2.4rem; font-weight: 800; color: var(--primary); display: block; }
        .stat-card .label { font-size: 0.9rem; color: rgba(255,255,255,0.55); margin-top: 6px; }

        /* ===== 用户评价 ===== */
        .review-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .review-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 28px 24px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: var(--transition);
        }
        .review-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-hover); }
        .review-card .stars { color: var(--accent); font-size: 0.95rem; margin-bottom: 12px; }
        .review-card blockquote { font-size: 0.95rem; color: var(--text-secondary); line-height: 1.7; font-style: normal; margin-bottom: 16px; }
        .review-card .author { display: flex; align-items: center; gap: 12px; }
        .review-card .author .avatar {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary-light), var(--primary));
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-white);
            font-weight: 700;
            font-size: 0.9rem;
        }
        .review-card .author .name { font-weight: 600; font-size: 0.9rem; color: var(--text-primary); }
        .review-card .author .title { font-size: 0.8rem; color: var(--text-muted); }

        /* ===== FAQ ===== */
        .faq-list { max-width: 780px; margin: 0 auto; }
        .faq-item {
            background: var(--bg-card);
            border-radius: var(--radius-sm);
            margin-bottom: 12px;
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover { border-color: var(--primary); }
        .faq-item .faq-q {
            padding: 18px 24px;
            font-weight: 600;
            font-size: 1rem;
            color: var(--text-primary);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            transition: var(--transition);
            background: transparent;
            width: 100%;
            text-align: left;
            border: none;
        }
        .faq-item .faq-q:hover { color: var(--primary); }
        .faq-item .faq-q i { color: var(--text-muted); transition: var(--transition); font-size: 0.9rem; }
        .faq-item .faq-q[aria-expanded="true"] i { transform: rotate(180deg); color: var(--primary); }
        .faq-item .faq-a {
            padding: 0 24px 18px;
            font-size: 0.95rem;
            color: var(--text-secondary);
            line-height: 1.7;
            display: none;
        }
        .faq-item .faq-a.open { display: block; }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
            padding: 72px 0;
            text-align: center;
        }
        .cta-section h2 { font-size: 2.4rem; color: var(--text-white); margin-bottom: 12px; }
        .cta-section p { font-size: 1.1rem; color: rgba(255,255,255,0.80); margin-bottom: 32px; max-width: 600px; margin-left: auto; margin-right: auto; }
        .cta-section .btn-cta {
            background: var(--text-white);
            color: var(--primary);
            padding: 18px 48px;
            border-radius: 50px;
            font-weight: 700;
            font-size: 1.1rem;
            display: inline-flex;
            align-items: center;
            gap: 12px;
            transition: var(--transition);
            box-shadow: 0 8px 28px rgba(0,0,0,0.15);
        }
        .cta-section .btn-cta:hover { transform: translateY(-3px); box-shadow: 0 12px 36px rgba(0,0,0,0.25); color: var(--primary-dark); }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--secondary);
            padding: 48px 0 32px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 32px;
        }
        .footer-brand .logo a { color: var(--text-white); font-size: 1.4rem; }
        .footer-brand .logo a i { color: var(--primary); }
        .footer-brand p { font-size: 0.9rem; color: rgba(255,255,255,0.45); margin-top: 12px; line-height: 1.7; max-width: 320px; }
        .footer-col h4 { font-size: 1rem; color: var(--text-white); margin-bottom: 16px; font-weight: 600; }
        .footer-col ul li { margin-bottom: 8px; }
        .footer-col ul li a { font-size: 0.9rem; color: rgba(255,255,255,0.50); transition: var(--transition); }
        .footer-col ul li a:hover { color: var(--primary); padding-left: 4px; }
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.08);
            padding-top: 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 0.85rem;
            color: rgba(255,255,255,0.35);
        }
        .footer-bottom a { color: rgba(255,255,255,0.50); }
        .footer-bottom a:hover { color: var(--primary); }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .features-grid { grid-template-columns: repeat(2, 1fr); }
            .category-grid { grid-template-columns: repeat(2, 1fr); }
            .stats-grid { grid-template-columns: repeat(2, 1fr); }
            .review-grid { grid-template-columns: repeat(2, 1fr); }
            .footer-grid { grid-template-columns: repeat(2, 1fr); }
        }
        @media (max-width: 768px) {
            :root { --header-height: 64px; }
            h1 { font-size: 2rem; }
            h2 { font-size: 1.6rem; }
            .section-padding { padding: 50px 0; }
            .section-title { margin-bottom: 32px; }
            .hero { padding: 60px 0 50px; }
            .hero h1 { font-size: 2rem; }
            .hero p { font-size: 1rem; }
            .hero-stats { gap: 20px; }
            .hero-stat .num { font-size: 1.5rem; }
            .header-search { max-width: 280px; }
            .header-search .search-form button span { display: none; }
            .header-search .search-form button { padding: 10px 16px; }
            .nav-list { gap: 4px; }
            .nav-list li a { padding: 6px 12px; font-size: 0.85rem; }
            .features-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
            .category-grid { grid-template-columns: 1fr; }
            .news-grid { grid-template-columns: 1fr; }
            .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
            .review-grid { grid-template-columns: 1fr; }
            .footer-grid { grid-template-columns: 1fr; }
            .cta-section h2 { font-size: 1.8rem; }
            .cta-section .btn-cta { padding: 14px 32px; font-size: 1rem; }
        }
        @media (max-width: 520px) {
            .header-inner { gap: 12px; }
            .logo a { font-size: 1.2rem; }
            .logo a i { font-size: 1.4rem; }
            .header-search { max-width: 180px; }
            .header-search .search-form input { padding: 8px 6px; font-size: 0.85rem; }
            .header-search .search-form button { padding: 8px 12px; font-size: 0.8rem; }
            .nav-list li a { padding: 4px 8px; font-size: 0.78rem; }
            .hero h1 { font-size: 1.6rem; }
            .hero-stat { flex: 1; min-width: 80px; }
            .features-grid { grid-template-columns: 1fr; }
            .stats-grid { grid-template-columns: 1fr 1fr; gap: 12px; }
            .stat-card { padding: 24px 16px; }
            .stat-card .num { font-size: 1.6rem; }
            .footer-bottom { flex-direction: column; text-align: center; }
        }

        /* ===== 工具类 ===== */
        .text-center { text-align: center; }
        .mt-12 { margin-top: 12px; }
        .mb-12 { margin-bottom: 12px; }
        .gap-8 { gap: 8px; }
        .flex-center { display: flex; align-items: center; justify-content: center; }

        /* Foundation 覆盖 */
        .grid-container { max-width: var(--max-width); padding-left: 24px; padding-right: 24px; }

/* roulang page: article */
/* ===== 设计变量 ===== */
        :root {
            --primary: #e74c3c;
            --primary-dark: #c0392b;
            --primary-light: #fadbd8;
            --secondary: #f39c12;
            --secondary-dark: #e67e22;
            --accent: #2ecc71;
            --bg-body: #f8f9fa;
            --bg-white: #ffffff;
            --bg-dark: #1a1a2e;
            --bg-card: #ffffff;
            --text-primary: #2c3e50;
            --text-secondary: #5a6a7a;
            --text-light: #95a5a6;
            --text-white: #ffffff;
            --border-color: #e8ecf0;
            --border-light: #f0f2f5;
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
            --shadow-md: 0 6px 24px rgba(0,0,0,0.08);
            --shadow-lg: 0 16px 48px rgba(0,0,0,0.12);
            --shadow-hover: 0 12px 40px rgba(231,76,60,0.18);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-family: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
            --max-width: 1200px;
            --header-height: 72px;
        }

        /* ===== 基础 Reset ===== */
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
        body {
            font-family: var(--font-family);
            background: var(--bg-body);
            color: var(--text-primary);
            line-height: 1.7;
            font-size: 16px;
            padding-top: var(--header-height);
            overflow-x: hidden;
        }
        a { color: var(--primary); text-decoration: none; transition: var(--transition); }
        a:hover { color: var(--primary-dark); }
        a:focus-visible { outline: 3px solid var(--primary); outline-offset: 2px; border-radius: 4px; }
        img { max-width: 100%; height: auto; display: block; border-radius: var(--radius-sm); }
        h1, h2, h3, h4, h5, h6 { font-weight: 700; line-height: 1.3; color: var(--text-primary); margin-bottom: 0.5em; }
        h1 { font-size: 2.2rem; }
        h2 { font-size: 1.6rem; }
        h3 { font-size: 1.25rem; }
        p { margin-bottom: 1rem; color: var(--text-secondary); }
        ul, ol { list-style: none; }
        button, input, textarea { font-family: inherit; font-size: inherit; }
        button { cursor: pointer; border: none; background: none; }
        .container { max-width: var(--max-width); margin: 0 auto; padding: 0 20px; width: 100%; }

        /* ===== 头部导航 ===== */
        .site-header {
            position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
            background: rgba(255,255,255,0.96);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border-color);
            height: var(--header-height);
            transition: var(--transition);
            box-shadow: 0 1px 4px rgba(0,0,0,0.04);
        }
        .site-header .container {
            display: flex; align-items: center; justify-content: space-between;
            height: 100%; max-width: var(--max-width);
        }
        .logo a {
            font-size: 1.6rem; font-weight: 800; color: var(--text-primary);
            display: flex; align-items: center; gap: 8px;
            letter-spacing: -0.5px;
        }
        .logo a i { color: var(--primary); font-size: 1.5rem; }
        .logo a span { color: var(--primary); }
        .logo a:hover { color: var(--primary); }
        .nav-list { display: flex; align-items: center; gap: 6px; }
        .nav-list li a {
            display: block; padding: 8px 18px; border-radius: var(--radius-sm);
            font-size: 0.95rem; font-weight: 600; color: var(--text-secondary);
            transition: var(--transition); position: relative;
        }
        .nav-list li a:hover { color: var(--primary); background: var(--primary-light); }
        .nav-list li a.active { color: var(--primary); background: var(--primary-light); }
        .nav-list li a.active::after {
            content: ''; position: absolute; bottom: 2px; left: 50%; transform: translateX(-50%);
            width: 20px; height: 3px; background: var(--primary); border-radius: 4px;
        }
        .nav-search { display: flex; align-items: center; background: var(--bg-body); border-radius: 40px; padding: 0 16px; border: 1px solid var(--border-color); transition: var(--transition); }
        .nav-search:focus-within { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(231,76,60,0.12); }
        .nav-search input { border: none; background: transparent; padding: 10px 12px; font-size: 0.9rem; min-width: 180px; outline: none; color: var(--text-primary); }
        .nav-search input::placeholder { color: var(--text-light); }
        .nav-search button { color: var(--text-light); padding: 8px; font-size: 1rem; transition: var(--transition); }
        .nav-search button:hover { color: var(--primary); }
        .hamburger { display: none; flex-direction: column; gap: 5px; padding: 8px; cursor: pointer; background: none; border: none; }
        .hamburger span { display: block; width: 26px; height: 3px; background: var(--text-primary); border-radius: 4px; transition: var(--transition); }

        /* ===== 文章详情 ===== */
        .article-hero {
            background: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%);
            padding: 60px 0 50px; position: relative; overflow: hidden;
        }
        .article-hero::before {
            content: ''; position: absolute; top: -40%; right: -20%; width: 600px; height: 600px;
            background: radial-gradient(circle, rgba(231,76,60,0.12) 0%, transparent 70%);
            border-radius: 50%;
        }
        .article-hero::after {
            content: ''; position: absolute; bottom: -30%; left: -10%; width: 400px; height: 400px;
            background: radial-gradient(circle, rgba(243,156,18,0.08) 0%, transparent 70%);
            border-radius: 50%;
        }
        .article-hero .container { position: relative; z-index: 2; }
        .article-breadcrumb {
            display: flex; align-items: center; gap: 10px; font-size: 0.85rem;
            color: rgba(255,255,255,0.6); margin-bottom: 20px; flex-wrap: wrap;
        }
        .article-breadcrumb a { color: rgba(255,255,255,0.7); }
        .article-breadcrumb a:hover { color: #fff; }
        .article-breadcrumb span { color: rgba(255,255,255,0.4); }
        .article-hero h1 {
            font-size: 2.4rem; color: #fff; max-width: 900px; line-height: 1.3;
            margin-bottom: 18px; text-shadow: 0 2px 20px rgba(0,0,0,0.2);
        }
        .article-meta {
            display: flex; align-items: center; gap: 24px; flex-wrap: wrap;
            color: rgba(255,255,255,0.7); font-size: 0.9rem;
        }
        .article-meta .tag {
            display: inline-block; padding: 4px 16px; background: var(--primary);
            color: #fff; border-radius: 40px; font-size: 0.8rem; font-weight: 600;
        }
        .article-meta i { margin-right: 6px; }
        .article-meta .date i { color: var(--secondary); }

        .article-main { padding: 60px 0 80px; }
        .article-layout {
            display: grid; grid-template-columns: 1fr 320px; gap: 50px; align-items: start;
        }
        .article-content {
            background: var(--bg-white); border-radius: var(--radius-md);
            padding: 40px 44px; box-shadow: var(--shadow-sm); border: 1px solid var(--border-color);
        }
        .article-content .featured-image {
            width: 100%; border-radius: var(--radius-sm); margin-bottom: 30px;
            object-fit: cover; max-height: 460px;
        }
        .article-content .body-text {
            font-size: 1.05rem; line-height: 1.9; color: var(--text-primary);
        }
        .article-content .body-text p { margin-bottom: 1.4rem; }
        .article-content .body-text h2, .article-content .body-text h3 { margin-top: 2rem; }
        .article-content .body-text img { border-radius: var(--radius-sm); margin: 1.5rem 0; }
        .article-content .body-text ul, .article-content .body-text ol { margin: 1rem 0 1rem 1.6rem; }
        .article-content .body-text ul { list-style: disc; }
        .article-content .body-text ol { list-style: decimal; }
        .article-content .body-text li { margin-bottom: 0.5rem; color: var(--text-secondary); }
        .article-content .body-text blockquote {
            border-left: 4px solid var(--primary); padding: 16px 24px; background: var(--primary-light);
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0; margin: 1.5rem 0;
        }
        .article-content .body-text blockquote p { margin-bottom: 0; color: var(--text-primary); }
        .article-content .body-text a { color: var(--primary); font-weight: 600; }
        .article-content .body-text a:hover { text-decoration: underline; }

        .article-not-found {
            text-align: center; padding: 80px 20px; background: var(--bg-white);
            border-radius: var(--radius-md); box-shadow: var(--shadow-sm);
        }
        .article-not-found i { font-size: 3.6rem; color: var(--text-light); margin-bottom: 20px; }
        .article-not-found h2 { font-size: 1.8rem; color: var(--text-primary); margin-bottom: 12px; }
        .article-not-found p { color: var(--text-secondary); margin-bottom: 24px; }
        .article-not-found .btn-home {
            display: inline-flex; align-items: center; gap: 10px;
            padding: 14px 36px; background: var(--primary); color: #fff;
            border-radius: 40px; font-weight: 600; font-size: 1rem;
            transition: var(--transition);
        }
        .article-not-found .btn-home:hover { background: var(--primary-dark); transform: translateY(-2px); box-shadow: var(--shadow-md); color: #fff; }

        /* ===== 侧边栏 ===== */
        .article-sidebar {
            display: flex; flex-direction: column; gap: 30px;
        }
        .sidebar-card {
            background: var(--bg-white); border-radius: var(--radius-md);
            padding: 28px 24px; box-shadow: var(--shadow-sm); border: 1px solid var(--border-color);
        }
        .sidebar-card h3 {
            font-size: 1.1rem; margin-bottom: 18px; display: flex; align-items: center; gap: 10px;
            padding-bottom: 14px; border-bottom: 2px solid var(--primary-light);
        }
        .sidebar-card h3 i { color: var(--primary); }
        .sidebar-list li { border-bottom: 1px solid var(--border-light); padding: 12px 0; }
        .sidebar-list li:last-child { border-bottom: none; }
        .sidebar-list li a {
            display: flex; align-items: center; gap: 12px; color: var(--text-secondary);
            font-size: 0.92rem; font-weight: 500;
        }
        .sidebar-list li a:hover { color: var(--primary); }
        .sidebar-list li a i { color: var(--primary); font-size: 0.85rem; width: 18px; }
        .sidebar-list li a .date { margin-left: auto; font-size: 0.78rem; color: var(--text-light); }
        .sidebar-tags { display: flex; flex-wrap: wrap; gap: 10px; }
        .sidebar-tags a {
            display: inline-block; padding: 6px 16px; background: var(--bg-body);
            border-radius: 40px; font-size: 0.82rem; color: var(--text-secondary);
            border: 1px solid var(--border-color); transition: var(--transition);
        }
        .sidebar-tags a:hover { background: var(--primary-light); color: var(--primary); border-color: var(--primary); }
        .sidebar-cta {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            padding: 32px 24px; text-align: center; border-radius: var(--radius-md);
            color: #fff;
        }
        .sidebar-cta h4 { color: #fff; font-size: 1.15rem; margin-bottom: 10px; }
        .sidebar-cta p { color: rgba(255,255,255,0.85); font-size: 0.9rem; margin-bottom: 20px; }
        .sidebar-cta .btn-cta {
            display: inline-block; padding: 12px 30px; background: #fff; color: var(--primary);
            border-radius: 40px; font-weight: 700; font-size: 0.95rem;
            transition: var(--transition);
        }
        .sidebar-cta .btn-cta:hover { background: var(--secondary); color: #fff; transform: translateY(-2px); box-shadow: 0 8px 24px rgba(0,0,0,0.2); }

        /* ===== 相关文章 ===== */
        .related-section { padding: 0 0 60px; }
        .related-section h2 {
            font-size: 1.5rem; margin-bottom: 30px; display: flex; align-items: center; gap: 12px;
        }
        .related-section h2 i { color: var(--primary); }
        .related-grid {
            display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px;
        }
        .related-card {
            background: var(--bg-white); border-radius: var(--radius-md);
            padding: 24px; box-shadow: var(--shadow-sm); border: 1px solid var(--border-color);
            transition: var(--transition);
        }
        .related-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); border-color: var(--primary-light); }
        .related-card .cat { display: inline-block; padding: 2px 12px; background: var(--primary-light); color: var(--primary); border-radius: 40px; font-size: 0.75rem; font-weight: 600; margin-bottom: 10px; }
        .related-card h3 { font-size: 1.05rem; margin-bottom: 8px; }
        .related-card h3 a { color: var(--text-primary); }
        .related-card h3 a:hover { color: var(--primary); }
        .related-card p { font-size: 0.88rem; color: var(--text-light); margin-bottom: 12px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
        .related-card .meta { font-size: 0.78rem; color: var(--text-light); display: flex; justify-content: space-between; }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--bg-dark); color: rgba(255,255,255,0.85); padding: 60px 0 30px;
        }
        .site-footer .container { max-width: var(--max-width); }
        .footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1.2fr; gap: 40px; margin-bottom: 40px; }
        .footer-brand .logo a { color: #fff; }
        .footer-brand .logo a span { color: var(--primary); }
        .footer-brand p { font-size: 0.9rem; color: rgba(255,255,255,0.6); margin-top: 14px; line-height: 1.7; }
        .footer-col h4 { font-size: 1rem; color: #fff; margin-bottom: 18px; }
        .footer-col ul li { margin-bottom: 10px; }
        .footer-col ul li a { color: rgba(255,255,255,0.6); font-size: 0.9rem; display: flex; align-items: center; gap: 8px; }
        .footer-col ul li a:hover { color: var(--primary); }
        .footer-col ul li a i { width: 16px; }
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.08); padding-top: 24px;
            display: flex; justify-content: space-between; align-items: center;
            font-size: 0.85rem; color: rgba(255,255,255,0.4); flex-wrap: wrap; gap: 12px;
        }
        .footer-bottom a { color: rgba(255,255,255,0.6); }
        .footer-bottom a:hover { color: var(--primary); }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .article-layout { grid-template-columns: 1fr; }
            .related-grid { grid-template-columns: repeat(2, 1fr); }
            .footer-grid { grid-template-columns: repeat(2, 1fr); }
        }
        @media (max-width: 768px) {
            body { padding-top: 64px; }
            :root { --header-height: 64px; }
            .nav-list { display: none; }
            .nav-search { display: none; }
            .hamburger { display: flex; }
            .nav-list.open { display: flex; flex-direction: column; position: absolute; top: var(--header-height); left: 0; right: 0; background: rgba(255,255,255,0.98); backdrop-filter: blur(16px); padding: 20px; border-bottom: 1px solid var(--border-color); box-shadow: var(--shadow-md); gap: 4px; }
            .nav-list.open li a { padding: 14px 20px; border-radius: var(--radius-sm); }
            .nav-list.open li a.active::after { display: none; }
            .article-hero { padding: 40px 0 36px; }
            .article-hero h1 { font-size: 1.6rem; }
            .article-content { padding: 24px 20px; }
            .article-meta { gap: 14px; font-size: 0.82rem; }
            .related-grid { grid-template-columns: 1fr; }
            .footer-grid { grid-template-columns: 1fr; gap: 30px; }
            .footer-bottom { flex-direction: column; text-align: center; }
            .sidebar-card { padding: 20px; }
        }
        @media (max-width: 520px) {
            .article-hero h1 { font-size: 1.35rem; }
            .article-content { padding: 16px; }
            .article-content .body-text { font-size: 0.98rem; }
            .sidebar-card { padding: 16px; }
            .related-card { padding: 18px; }
            .article-breadcrumb { font-size: 0.78rem; gap: 6px; }
        }
        @media (max-width: 480px) {
            .logo a { font-size: 1.3rem; }
            .article-hero h1 { font-size: 1.2rem; }
            .article-content { padding: 14px; border-radius: var(--radius-sm); }
        }

        /* ===== 工具类 ===== */
        .text-center { text-align: center; }
        .mt-2 { margin-top: 20px; }
        .mb-2 { margin-bottom: 20px; }
        .gap-1 { gap: 10px; }
        .flex-center { display: flex; align-items: center; justify-content: center; }

/* roulang page: category1 */
/*****************************************************************
         *  1. 设计变量 (Design Tokens)
         *****************************************************************/
        :root {
            /* 主色 – 活力电竞蓝紫 */
            --clr-primary: #6c5ce7;
            --clr-primary-light: #a29bfe;
            --clr-primary-dark: #4a3db8;
            /* 辅色 – 亮橙点缀 */
            --clr-accent: #fd9644;
            --clr-accent-light: #fdcb6e;
            --clr-accent-dark: #e17055;
            /* 中性色 */
            --clr-bg: #f8f9fd;
            --clr-surface: #ffffff;
            --clr-card-bg: #ffffff;
            --clr-text: #1e1e2f;
            --clr-text-secondary: #5a5a7a;
            --clr-text-light: #8e8ea0;
            --clr-border: #e6e8f0;
            --clr-border-light: #f0f1f8;
            --clr-footer-bg: #14141f;
            --clr-footer-text: #c0c0d0;
            /* 圆角 */
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            /* 阴影 */
            --shadow-sm: 0 2px 8px rgba(108, 92, 231, 0.06);
            --shadow-md: 0 8px 24px rgba(108, 92, 231, 0.10);
            --shadow-lg: 0 16px 48px rgba(108, 92, 231, 0.14);
            --shadow-hover: 0 20px 40px rgba(108, 92, 231, 0.18);
            /* 间距 */
            --space-xs: 4px;
            --space-sm: 8px;
            --space-md: 16px;
            --space-lg: 24px;
            --space-xl: 32px;
            --space-2xl: 48px;
            --space-3xl: 64px;
            --space-4xl: 80px;
            /* 字体 */
            --font-sans: 'Segoe UI', system-ui, -apple-system, 'PingFang SC', 'Microsoft YaHei', sans-serif;
            --font-weight-normal: 400;
            --font-weight-medium: 500;
            --font-weight-semibold: 600;
            --font-weight-bold: 700;
            /* 过渡 */
            --transition: 0.25s cubic-bezier(0.25, 0.46, 0.45, 0.94);
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-sans);
            font-weight: var(--font-weight-normal);
            font-size: 16px;
            line-height: 1.6;
            color: var(--clr-text);
            background: var(--clr-bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        a {
            color: var(--clr-primary);
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover, a:focus {
            color: var(--clr-primary-dark);
        }
        a:focus-visible {
            outline: 2px solid var(--clr-primary-light);
            outline-offset: 2px;
            border-radius: var(--radius-sm);
        }

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

        ul, ol {
            list-style: none;
            padding: 0;
            margin: 0;
        }

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

        button {
            cursor: pointer;
            background: none;
        }

        /* Utility */
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 var(--space-lg);
        }

        .section-title {
            font-size: 2rem;
            font-weight: var(--font-weight-bold);
            line-height: 1.3;
            margin-bottom: var(--space-sm);
            color: var(--clr-text);
        }
        .section-subtitle {
            font-size: 1.1rem;
            color: var(--clr-text-secondary);
            margin-bottom: var(--space-xl);
            max-width: 640px;
        }
        .text-center {
            text-align: center;
        }

        .badge {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            padding: 2px 12px;
            border-radius: 100px;
            font-size: 0.75rem;
            font-weight: var(--font-weight-semibold);
            background: var(--clr-primary-light);
            color: #fff;
        }
        .badge-hot {
            background: #ff6b6b;
        }
        .badge-new {
            background: #2ecc71;
        }
        .badge-tip {
            background: var(--clr-accent);
        }

        /*****************************************************************
         *  3. 导航 (搜索主导航)
         *****************************************************************/
        .site-header {
            background: var(--clr-surface);
            border-bottom: 1px solid var(--clr-border-light);
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: var(--shadow-sm);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 68px;
            gap: var(--space-lg);
        }

        .logo a {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 1.5rem;
            font-weight: var(--font-weight-bold);
            color: var(--clr-text);
            transition: opacity var(--transition);
        }
        .logo a i {
            color: var(--clr-primary);
            font-size: 1.6rem;
        }
        .logo a span {
            color: var(--clr-primary);
        }
        .logo a:hover {
            opacity: 0.85;
        }

        /* 搜索框 – 导航视觉中心 */
        .nav-search {
            flex: 1;
            max-width: 480px;
            position: relative;
        }
        .nav-search input {
            width: 100%;
            padding: 10px 18px 10px 44px;
            border: 2px solid var(--clr-border);
            border-radius: 100px;
            background: var(--clr-bg);
            font-size: 0.95rem;
            transition: border-color var(--transition), box-shadow var(--transition);
        }
        .nav-search input:focus {
            border-color: var(--clr-primary);
            box-shadow: 0 0 0 4px rgba(108, 92, 231, 0.12);
        }
        .nav-search .search-icon {
            position: absolute;
            left: 16px;
            top: 50%;
            transform: translateY(-50%);
            color: var(--clr-text-light);
            font-size: 1rem;
            pointer-events: none;
        }

        /* 导航列表 */
        .nav-list {
            display: flex;
            align-items: center;
            gap: var(--space-sm);
        }
        .nav-list li a {
            display: inline-flex;
            align-items: center;
            padding: 8px 18px;
            border-radius: 100px;
            font-weight: var(--font-weight-medium);
            color: var(--clr-text-secondary);
            transition: background var(--transition), color var(--transition);
            font-size: 0.95rem;
            white-space: nowrap;
        }
        .nav-list li a:hover {
            background: rgba(108, 92, 231, 0.08);
            color: var(--clr-primary);
        }
        .nav-list li a.active {
            background: var(--clr-primary);
            color: #fff;
            box-shadow: 0 4px 12px rgba(108, 92, 231, 0.25);
        }
        .nav-list li a.active:hover {
            background: var(--clr-primary-dark);
        }

        /* 移动端菜单按钮 */
        .menu-toggle {
            display: none;
            font-size: 1.5rem;
            padding: 8px 12px;
            border-radius: var(--radius-sm);
            color: var(--clr-text);
            background: transparent;
            transition: background var(--transition);
        }
        .menu-toggle:hover {
            background: rgba(108, 92, 231, 0.08);
        }

        /*****************************************************************
         *  4. Hero / 分类首屏
         *****************************************************************/
        .category-hero {
            background: linear-gradient(135deg, #1e1e2f 0%, #2d2d44 50%, #1a1a2e 100%);
            padding: var(--space-3xl) 0;
            color: #fff;
            position: relative;
            overflow: hidden;
        }
        .category-hero::after {
            content: '';
            position: absolute;
            top: -40%;
            right: -20%;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(108, 92, 231, 0.25) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .category-hero .container {
            position: relative;
            z-index: 2;
        }
        .category-hero h1 {
            font-size: 2.6rem;
            font-weight: var(--font-weight-bold);
            margin-bottom: var(--space-md);
            line-height: 1.2;
        }
        .category-hero h1 i {
            color: var(--clr-accent);
            margin-right: 12px;
        }
        .category-hero p {
            font-size: 1.15rem;
            color: rgba(255, 255, 255, 0.75);
            max-width: 640px;
            margin-bottom: var(--space-lg);
        }
        .hero-stats {
            display: flex;
            gap: var(--space-xl);
            flex-wrap: wrap;
        }
        .hero-stats .stat-item {
            display: flex;
            align-items: center;
            gap: 10px;
            background: rgba(255, 255, 255, 0.08);
            backdrop-filter: blur(4px);
            padding: 10px 20px;
            border-radius: 100px;
            font-size: 0.95rem;
        }
        .hero-stats .stat-item i {
            color: var(--clr-accent);
            font-size: 1.2rem;
        }
        .hero-stats .stat-item strong {
            font-weight: var(--font-weight-bold);
            color: #fff;
            margin-right: 4px;
        }

        /*****************************************************************
         *  5. 板块通用间距
         *****************************************************************/
        .section {
            padding: var(--space-3xl) 0;
        }
        .section-alt {
            background: var(--clr-surface);
        }

        /*****************************************************************
         *  6. 游戏分类筛选标签
         *****************************************************************/
        .filter-tabs {
            display: flex;
            flex-wrap: wrap;
            gap: var(--space-sm);
            margin-bottom: var(--space-xl);
            justify-content: center;
        }
        .filter-tabs .filter-btn {
            padding: 8px 24px;
            border-radius: 100px;
            font-weight: var(--font-weight-medium);
            background: var(--clr-surface);
            border: 2px solid var(--clr-border);
            color: var(--clr-text-secondary);
            transition: all var(--transition);
            font-size: 0.95rem;
        }
        .filter-tabs .filter-btn:hover {
            border-color: var(--clr-primary-light);
            color: var(--clr-primary);
        }
        .filter-tabs .filter-btn.active {
            background: var(--clr-primary);
            border-color: var(--clr-primary);
            color: #fff;
            box-shadow: 0 4px 14px rgba(108, 92, 231, 0.25);
        }

        /*****************************************************************
         *  7. 游戏卡片网格
         *****************************************************************/
        .game-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
            gap: var(--space-lg);
        }

        .game-card {
            background: var(--clr-card-bg);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: transform var(--transition), box-shadow var(--transition);
            border: 1px solid var(--clr-border-light);
        }
        .game-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
        }
        .game-card .card-img {
            position: relative;
            height: 180px;
            overflow: hidden;
            background: #eef0f8;
        }
        .game-card .card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        .game-card:hover .card-img img {
            transform: scale(1.05);
        }
        .game-card .card-img .badge {
            position: absolute;
            top: 12px;
            left: 12px;
        }
        .game-card .card-body {
            padding: var(--space-md) var(--space-lg) var(--space-lg);
        }
        .game-card .card-body h3 {
            font-size: 1.1rem;
            font-weight: var(--font-weight-semibold);
            margin-bottom: 6px;
        }
        .game-card .card-body h3 a {
            color: var(--clr-text);
        }
        .game-card .card-body h3 a:hover {
            color: var(--clr-primary);
        }
        .game-card .card-body .meta {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 0.85rem;
            color: var(--clr-text-light);
            margin-bottom: var(--space-sm);
        }
        .game-card .card-body .meta i {
            margin-right: 4px;
        }
        .game-card .card-body .desc {
            font-size: 0.9rem;
            color: var(--clr-text-secondary);
            margin-bottom: var(--space-md);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .game-card .card-body .download-btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 8px 24px;
            border-radius: 100px;
            font-weight: var(--font-weight-semibold);
            background: var(--clr-primary);
            color: #fff;
            transition: background var(--transition), transform var(--transition);
            font-size: 0.9rem;
        }
        .game-card .card-body .download-btn:hover {
            background: var(--clr-primary-dark);
            transform: translateY(-2px);
            color: #fff;
        }
        .game-card .card-body .download-btn i {
            font-size: 0.85rem;
        }

        /*****************************************************************
         *  8. 排行榜 / 列表区块
         *****************************************************************/
        .rank-list {
            display: flex;
            flex-direction: column;
            gap: var(--space-md);
            max-width: 800px;
            margin: 0 auto;
        }
        .rank-item {
            display: flex;
            align-items: center;
            gap: var(--space-md);
            background: var(--clr-surface);
            padding: var(--space-md) var(--space-lg);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--clr-border-light);
            transition: transform var(--transition), box-shadow var(--transition);
        }
        .rank-item:hover {
            transform: translateX(6px);
            box-shadow: var(--shadow-md);
        }
        .rank-item .rank-number {
            font-size: 1.4rem;
            font-weight: var(--font-weight-bold);
            color: var(--clr-primary-light);
            min-width: 36px;
            text-align: center;
        }
        .rank-item .rank-number.top {
            color: var(--clr-accent);
        }
        .rank-item .rank-info {
            flex: 1;
        }
        .rank-item .rank-info h4 {
            font-size: 1rem;
            font-weight: var(--font-weight-semibold);
            margin-bottom: 2px;
        }
        .rank-item .rank-info .rank-meta {
            font-size: 0.85rem;
            color: var(--clr-text-light);
        }
        .rank-item .rank-action {
            flex-shrink: 0;
        }
        .rank-item .rank-action .btn-sm {
            padding: 6px 18px;
            border-radius: 100px;
            font-size: 0.85rem;
            font-weight: var(--font-weight-medium);
            background: var(--clr-primary);
            color: #fff;
            transition: background var(--transition);
        }
        .rank-item .rank-action .btn-sm:hover {
            background: var(--clr-primary-dark);
            color: #fff;
        }

        /*****************************************************************
         *  9. 下载流程步骤
         *****************************************************************/
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: var(--space-lg);
            counter-reset: step;
        }
        .step-item {
            background: var(--clr-surface);
            padding: var(--space-xl) var(--space-lg);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            text-align: center;
            border: 1px solid var(--clr-border-light);
            transition: transform var(--transition), box-shadow var(--transition);
            position: relative;
        }
        .step-item:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }
        .step-item::before {
            counter-increment: step;
            content: counter(step);
            position: absolute;
            top: -14px;
            left: 50%;
            transform: translateX(-50%);
            width: 32px;
            height: 32px;
            background: var(--clr-primary);
            color: #fff;
            font-weight: var(--font-weight-bold);
            font-size: 0.9rem;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 4px 12px rgba(108, 92, 231, 0.25);
        }
        .step-item .step-icon {
            font-size: 2.2rem;
            color: var(--clr-primary);
            margin-bottom: var(--space-sm);
        }
        .step-item h4 {
            font-size: 1.05rem;
            font-weight: var(--font-weight-semibold);
            margin-bottom: 6px;
        }
        .step-item p {
            font-size: 0.9rem;
            color: var(--clr-text-secondary);
        }

        /*****************************************************************
         *  10. FAQ
         *****************************************************************/
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: var(--space-sm);
        }
        .faq-item {
            background: var(--clr-surface);
            border-radius: var(--radius-md);
            border: 1px solid var(--clr-border-light);
            overflow: hidden;
            transition: box-shadow var(--transition);
        }
        .faq-item:hover {
            box-shadow: var(--shadow-sm);
        }
        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: var(--space-md) var(--space-lg);
            font-weight: var(--font-weight-medium);
            font-size: 1rem;
            color: var(--clr-text);
            background: transparent;
            text-align: left;
            transition: background var(--transition);
        }
        .faq-question:hover {
            background: rgba(108, 92, 231, 0.04);
        }
        .faq-question i {
            transition: transform var(--transition);
            color: var(--clr-text-light);
        }
        .faq-question[aria-expanded="true"] i {
            transform: rotate(180deg);
        }
        .faq-answer {
            padding: 0 var(--space-lg) var(--space-md);
            font-size: 0.95rem;
            color: var(--clr-text-secondary);
            line-height: 1.7;
            display: none;
        }
        .faq-answer.open {
            display: block;
        }

        /*****************************************************************
         *  11. CTA
         *****************************************************************/
        .cta-section {
            background: linear-gradient(135deg, var(--clr-primary) 0%, var(--clr-primary-dark) 100%);
            padding: var(--space-3xl) 0;
            color: #fff;
            text-align: center;
        }
        .cta-section h2 {
            font-size: 2rem;
            font-weight: var(--font-weight-bold);
            margin-bottom: var(--space-sm);
        }
        .cta-section p {
            font-size: 1.1rem;
            opacity: 0.85;
            margin-bottom: var(--space-lg);
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
        }
        .cta-btn-group {
            display: flex;
            gap: var(--space-md);
            justify-content: center;
            flex-wrap: wrap;
        }
        .cta-btn {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 36px;
            border-radius: 100px;
            font-weight: var(--font-weight-semibold);
            font-size: 1.05rem;
            transition: transform var(--transition), box-shadow var(--transition);
        }
        .cta-btn-primary {
            background: #fff;
            color: var(--clr-primary);
        }
        .cta-btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 28px rgba(0, 0, 0, 0.2);
            color: var(--clr-primary);
        }
        .cta-btn-outline {
            border: 2px solid rgba(255, 255, 255, 0.4);
            color: #fff;
        }
        .cta-btn-outline:hover {
            border-color: #fff;
            transform: translateY(-3px);
            color: #fff;
        }

        /*****************************************************************
         *  12. 页脚 (沿用首页结构)
         *****************************************************************/
        .site-footer {
            background: var(--clr-footer-bg);
            color: var(--clr-footer-text);
            padding: var(--space-3xl) 0 var(--space-lg);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.2fr;
            gap: var(--space-xl);
            margin-bottom: var(--space-xl);
        }
        .footer-brand .logo a {
            color: #fff;
            font-size: 1.4rem;
        }
        .footer-brand .logo a span {
            color: var(--clr-primary-light);
        }
        .footer-brand p {
            font-size: 0.9rem;
            color: var(--clr-footer-text);
            margin-top: var(--space-sm);
            line-height: 1.7;
            max-width: 360px;
        }
        .footer-col h4 {
            color: #fff;
            font-size: 1rem;
            font-weight: var(--font-weight-semibold);
            margin-bottom: var(--space-md);
        }
        .footer-col ul li {
            margin-bottom: 8px;
        }
        .footer-col ul li a {
            color: var(--clr-footer-text);
            font-size: 0.9rem;
            transition: color var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .footer-col ul li a:hover {
            color: #fff;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding-top: var(--space-lg);
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: var(--space-sm);
            font-size: 0.85rem;
            color: var(--clr-footer-text);
        }
        .footer-bottom a {
            color: var(--clr-primary-light);
        }
        .footer-bottom a:hover {
            color: #fff;
        }

        /*****************************************************************
         *  13. 响应式断点
         *****************************************************************/
        /* 平板 ≤ 1024px */
        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .category-hero h1 {
                font-size: 2.2rem;
            }
        }

        /* 平板 ≤ 768px */
        @media (max-width: 768px) {
            .header-inner {
                height: 60px;
            }
            .nav-list {
                display: none;
                position: absolute;
                top: 60px;
                left: 0;
                right: 0;
                background: var(--clr-surface);
                flex-direction: column;
                padding: var(--space-md);
                box-shadow: var(--shadow-lg);
                border-bottom: 1px solid var(--clr-border);
                gap: var(--space-xs);
                border-radius: 0 0 var(--radius-md) var(--radius-md);
            }
            .nav-list.open {
                display: flex;
            }
            .nav-list li a {
                width: 100%;
                padding: 12px 18px;
                border-radius: var(--radius-sm);
            }
            .menu-toggle {
                display: block;
            }
            .nav-search {
                max-width: 200px;
            }
            .nav-search input {
                padding: 8px 12px 8px 36px;
                font-size: 0.85rem;
            }
            .nav-search .search-icon {
                left: 12px;
                font-size: 0.85rem;
            }

            .category-hero {
                padding: var(--space-2xl) 0;
            }
            .category-hero h1 {
                font-size: 1.8rem;
            }
            .category-hero p {
                font-size: 1rem;
            }
            .hero-stats {
                gap: var(--space-sm);
            }
            .hero-stats .stat-item {
                padding: 6px 14px;
                font-size: 0.85rem;
            }

            .section {
                padding: var(--space-2xl) 0;
            }
            .section-title {
                font-size: 1.6rem;
            }
            .game-grid {
                grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
                gap: var(--space-md);
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: var(--space-lg);
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .steps-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        /* 手机 ≤ 520px */
        @media (max-width: 520px) {
            .container {
                padding: 0 var(--space-md);
            }
            .header-inner {
                gap: var(--space-sm);
            }
            .logo a {
                font-size: 1.2rem;
            }
            .nav-search {
                max-width: 140px;
            }
            .nav-search input {
                padding: 6px 10px 6px 30px;
                font-size: 0.8rem;
            }
            .nav-search .search-icon {
                left: 10px;
                font-size: 0.75rem;
            }
            .category-hero h1 {
                font-size: 1.5rem;
            }
            .category-hero h1 i {
                margin-right: 6px;
            }
            .hero-stats .stat-item {
                font-size: 0.8rem;
                padding: 4px 12px;
            }
            .section-title {
                font-size: 1.4rem;
            }
            .game-grid {
                grid-template-columns: 1fr;
            }
            .steps-grid {
                grid-template-columns: 1fr;
            }
            .filter-tabs .filter-btn {
                padding: 6px 16px;
                font-size: 0.85rem;
            }
            .cta-section h2 {
                font-size: 1.5rem;
            }
            .cta-btn {
                padding: 10px 24px;
                font-size: 0.95rem;
            }
            .rank-item {
                flex-wrap: wrap;
                gap: var(--space-sm);
            }
            .rank-item .rank-number {
                min-width: 28px;
                font-size: 1.2rem;
            }
        }

        /*****************************************************************
         *  14. 辅助 & 动画
         *****************************************************************/
        .fade-in-up {
            opacity: 0;
            transform: translateY(30px);
            transition: opacity 0.6s ease, transform 0.6s ease;
        }
        .fade-in-up.visible {
            opacity: 1;
            transform: translateY(0);
        }

/* roulang page: category2 */
/* ===== Design Variables ===== */
        :root {
            --color-primary: #e74c3c;
            --color-primary-dark: #c0392b;
            --color-primary-light: #f1948a;
            --color-secondary: #f39c12;
            --color-secondary-dark: #e67e22;
            --color-accent: #2ecc71;
            --color-bg: #f8f9fa;
            --color-bg-alt: #ffffff;
            --color-bg-dark: #1a1a2e;
            --color-bg-card: #ffffff;
            --color-text: #2c3e50;
            --color-text-light: #7f8c8d;
            --color-text-inverse: #ffffff;
            --color-border: #e8e8e8;
            --color-border-light: #f0f0f0;
            --color-shadow: rgba(0,0,0,0.08);
            --color-shadow-hover: rgba(0,0,0,0.15);
            --color-overlay: rgba(0,0,0,0.5);
            --color-glow: rgba(231,76,60,0.15);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-sm: 0 2px 12px var(--color-shadow);
            --shadow-md: 0 6px 28px var(--color-shadow);
            --shadow-lg: 0 12px 48px var(--color-shadow-hover);
            --shadow-glow: 0 0 30px var(--color-glow);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-family: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
            --max-width: 1200px;
            --nav-height: 72px;
            --spacing-section: 80px;
            --spacing-section-sm: 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-family);
            background: var(--color-bg);
            color: var(--color-text);
            line-height: 1.7;
            font-size: 16px;
            overflow-x: hidden;
        }

        a {
            color: var(--color-primary);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--color-primary-dark);
        }
        a:focus-visible {
            outline: 3px solid var(--color-primary);
            outline-offset: 2px;
            border-radius: 4px;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        ul, ol {
            list-style: none;
        }
        button, input, select, textarea {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
        }
        button {
            cursor: pointer;
            background: none;
        }
        h1, h2, h3, h4, h5, h6 {
            line-height: 1.3;
            font-weight: 700;
            color: var(--color-text);
        }

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

        .section-padding {
            padding: var(--spacing-section) 0;
        }
        .section-padding-sm {
            padding: var(--spacing-section-sm) 0;
        }

        /* ===== Header & Navigation (Foundation enhanced) ===== */
        .site-header {
            background: var(--color-bg-alt);
            border-bottom: 1px solid var(--color-border);
            position: sticky;
            top: 0;
            z-index: 1000;
            height: var(--nav-height);
            box-shadow: 0 2px 20px rgba(0,0,0,0.04);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
        }

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

        .logo a {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 1.6rem;
            font-weight: 800;
            color: var(--color-text);
            letter-spacing: -0.5px;
        }
        .logo a i {
            color: var(--color-primary);
            font-size: 1.8rem;
        }
        .logo a span {
            color: var(--color-primary);
        }
        .logo a:hover {
            color: var(--color-primary);
        }

        /* Search bar — nav centerpiece */
        .nav-search {
            flex: 1;
            max-width: 480px;
            position: relative;
        }
        .nav-search .search-input {
            width: 100%;
            padding: 10px 44px 10px 18px;
            border-radius: 50px;
            border: 2px solid var(--color-border);
            background: var(--color-bg);
            font-size: 0.95rem;
            transition: var(--transition);
        }
        .nav-search .search-input:focus {
            border-color: var(--color-primary);
            background: var(--color-bg-alt);
            box-shadow: 0 0 0 4px var(--color-glow);
        }
        .nav-search .search-btn {
            position: absolute;
            right: 6px;
            top: 50%;
            transform: translateY(-50%);
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: var(--color-primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: var(--transition);
        }
        .nav-search .search-btn:hover {
            background: var(--color-primary-dark);
            transform: translateY(-50%) scale(1.05);
        }

        .nav-list {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .nav-list li a {
            display: inline-block;
            padding: 8px 18px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.95rem;
            color: var(--color-text-light);
            transition: var(--transition);
            position: relative;
        }
        .nav-list li a:hover {
            color: var(--color-primary);
            background: var(--color-glow);
        }
        .nav-list li a.active {
            color: var(--color-text-inverse);
            background: var(--color-primary);
            box-shadow: var(--shadow-glow);
        }
        .nav-list li a.active:hover {
            background: var(--color-primary-dark);
            color: #fff;
        }

        /* Mobile menu toggle */
        .menu-toggle {
            display: none;
            width: 42px;
            height: 42px;
            border-radius: 50%;
            background: var(--color-bg);
            border: 1px solid var(--color-border);
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            color: var(--color-text);
            transition: var(--transition);
        }
        .menu-toggle:hover {
            background: var(--color-glow);
            border-color: var(--color-primary);
            color: var(--color-primary);
        }

        /* ===== Hero ===== */
        .gift-hero {
            background: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%);
            padding: 80px 0 60px;
            position: relative;
            overflow: hidden;
        }
        .gift-hero::before {
            content: '';
            position: absolute;
            top: -30%;
            right: -10%;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(231,76,60,0.12) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .gift-hero::after {
            content: '';
            position: absolute;
            bottom: -20%;
            left: -5%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(243,156,18,0.08) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .gift-hero .container {
            position: relative;
            z-index: 1;
            text-align: center;
        }
        .gift-hero h1 {
            color: #fff;
            font-size: 3rem;
            font-weight: 900;
            margin-bottom: 16px;
            letter-spacing: -1px;
        }
        .gift-hero h1 i {
            color: var(--color-secondary);
            margin-right: 10px;
        }
        .gift-hero p {
            color: rgba(255,255,255,0.8);
            font-size: 1.2rem;
            max-width: 640px;
            margin: 0 auto 28px;
            line-height: 1.8;
        }
        .gift-hero .hero-stats {
            display: flex;
            justify-content: center;
            gap: 48px;
            flex-wrap: wrap;
            margin-top: 12px;
        }
        .gift-hero .hero-stats .stat-item {
            text-align: center;
            color: #fff;
        }
        .gift-hero .hero-stats .stat-num {
            font-size: 2.2rem;
            font-weight: 900;
            color: var(--color-secondary);
            display: block;
        }
        .gift-hero .hero-stats .stat-label {
            font-size: 0.95rem;
            opacity: 0.75;
        }

        /* ===== Section Titles ===== */
        .section-title {
            text-align: center;
            margin-bottom: 48px;
        }
        .section-title h2 {
            font-size: 2.2rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            margin-bottom: 10px;
        }
        .section-title h2 i {
            color: var(--color-primary);
            margin-right: 8px;
        }
        .section-title p {
            color: var(--color-text-light);
            font-size: 1.05rem;
            max-width: 560px;
            margin: 0 auto;
        }

        /* ===== Gift Cards Grid ===== */
        .gift-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 28px;
        }

        .gift-card {
            background: var(--color-bg-card);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            padding: 28px 24px 24px;
            transition: var(--transition);
            border: 1px solid var(--color-border-light);
            position: relative;
            overflow: hidden;
        }
        .gift-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(90deg, var(--color-primary), var(--color-secondary));
            opacity: 0;
            transition: var(--transition);
        }
        .gift-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: transparent;
        }
        .gift-card:hover::before {
            opacity: 1;
        }

        .gift-card .gift-icon {
            width: 56px;
            height: 56px;
            border-radius: var(--radius-sm);
            background: var(--color-glow);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.8rem;
            color: var(--color-primary);
            margin-bottom: 16px;
        }
        .gift-card h3 {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 6px;
        }
        .gift-card .gift-desc {
            color: var(--color-text-light);
            font-size: 0.95rem;
            margin-bottom: 16px;
            line-height: 1.6;
        }
        .gift-card .gift-meta {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding-top: 16px;
            border-top: 1px solid var(--color-border-light);
        }
        .gift-card .gift-tag {
            display: inline-block;
            padding: 4px 14px;
            border-radius: 50px;
            font-size: 0.8rem;
            font-weight: 600;
            background: var(--color-glow);
            color: var(--color-primary);
        }
        .gift-card .gift-tag.hot {
            background: #fde8e8;
            color: #e74c3c;
        }
        .gift-card .gift-tag.new {
            background: #e8f8f0;
            color: #27ae60;
        }
        .gift-card .gift-tag.limited {
            background: #fef5e7;
            color: #f39c12;
        }
        .gift-card .gift-btn {
            padding: 6px 18px;
            border-radius: 50px;
            background: var(--color-primary);
            color: #fff;
            font-weight: 600;
            font-size: 0.85rem;
            transition: var(--transition);
        }
        .gift-card .gift-btn:hover {
            background: var(--color-primary-dark);
            transform: scale(1.04);
        }

        /* ===== Category Tabs ===== */
        .gift-tabs {
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            gap: 10px;
            margin-bottom: 40px;
        }
        .gift-tabs .tab-btn {
            padding: 10px 28px;
            border-radius: 50px;
            border: 2px solid var(--color-border);
            background: var(--color-bg-alt);
            font-weight: 600;
            font-size: 0.95rem;
            color: var(--color-text-light);
            transition: var(--transition);
        }
        .gift-tabs .tab-btn:hover {
            border-color: var(--color-primary);
            color: var(--color-primary);
        }
        .gift-tabs .tab-btn.active {
            border-color: var(--color-primary);
            background: var(--color-primary);
            color: #fff;
            box-shadow: var(--shadow-glow);
        }

        /* ===== Process Steps ===== */
        .process-steps {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 32px;
            counter-reset: step;
        }
        .process-step {
            text-align: center;
            position: relative;
            padding: 32px 20px 24px;
            background: var(--color-bg-card);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-light);
            transition: var(--transition);
        }
        .process-step:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }
        .process-step .step-num {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--color-primary);
            color: #fff;
            font-weight: 900;
            font-size: 1.3rem;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 16px;
            box-shadow: var(--shadow-glow);
        }
        .process-step h4 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 6px;
        }
        .process-step p {
            color: var(--color-text-light);
            font-size: 0.92rem;
            line-height: 1.6;
        }

        /* ===== Data / Stats ===== */
        .stats-row {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
            gap: 24px;
            text-align: center;
        }
        .stats-row .stat-box {
            background: var(--color-bg-card);
            border-radius: var(--radius-md);
            padding: 32px 16px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-light);
            transition: var(--transition);
        }
        .stats-row .stat-box:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }
        .stats-row .stat-box .num {
            font-size: 2.4rem;
            font-weight: 900;
            color: var(--color-primary);
            display: block;
        }
        .stats-row .stat-box .label {
            color: var(--color-text-light);
            font-size: 0.95rem;
            margin-top: 4px;
        }

        /* ===== Testimonials ===== */
        .testimonial-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 28px;
        }
        .testimonial-card {
            background: var(--color-bg-card);
            border-radius: var(--radius-md);
            padding: 28px 24px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-light);
            transition: var(--transition);
        }
        .testimonial-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }
        .testimonial-card .stars {
            color: var(--color-secondary);
            font-size: 1rem;
            margin-bottom: 10px;
        }
        .testimonial-card blockquote {
            color: var(--color-text);
            font-size: 0.98rem;
            line-height: 1.7;
            font-style: normal;
            margin-bottom: 16px;
        }
        .testimonial-card .user {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .testimonial-card .user .avatar {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: var(--color-glow);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--color-primary);
            font-weight: 700;
        }
        .testimonial-card .user .name {
            font-weight: 600;
            font-size: 0.95rem;
        }
        .testimonial-card .user .game {
            font-size: 0.82rem;
            color: var(--color-text-light);
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 760px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--color-bg-card);
            border-radius: var(--radius-sm);
            border: 1px solid var(--color-border-light);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: var(--color-border);
        }
        .faq-item .faq-q {
            padding: 18px 24px;
            font-weight: 600;
            font-size: 1rem;
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
            transition: var(--transition);
            user-select: none;
        }
        .faq-item .faq-q:hover {
            background: var(--color-bg);
        }
        .faq-item .faq-q i {
            transition: var(--transition);
            color: var(--color-text-light);
        }
        .faq-item.active .faq-q i {
            transform: rotate(180deg);
            color: var(--color-primary);
        }
        .faq-item .faq-a {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
            padding: 0 24px;
            color: var(--color-text-light);
            line-height: 1.7;
            font-size: 0.95rem;
        }
        .faq-item.active .faq-a {
            max-height: 240px;
            padding: 0 24px 20px;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, #1a1a2e 0%, #0f3460 100%);
            padding: 72px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: -50%;
            left: 50%;
            transform: translateX(-50%);
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(231,76,60,0.08) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .cta-section .container {
            position: relative;
            z-index: 1;
        }
        .cta-section h2 {
            color: #fff;
            font-size: 2.2rem;
            font-weight: 800;
            margin-bottom: 14px;
        }
        .cta-section p {
            color: rgba(255,255,255,0.8);
            font-size: 1.1rem;
            max-width: 520px;
            margin: 0 auto 28px;
        }
        .cta-section .cta-btn {
            display: inline-block;
            padding: 16px 48px;
            border-radius: 50px;
            background: var(--color-primary);
            color: #fff;
            font-weight: 700;
            font-size: 1.1rem;
            transition: var(--transition);
            box-shadow: var(--shadow-glow);
        }
        .cta-section .cta-btn:hover {
            background: var(--color-primary-dark);
            transform: scale(1.04);
            box-shadow: 0 0 40px rgba(231,76,60,0.3);
        }

        /* ===== Footer (共用首页结构) ===== */
        .site-footer {
            background: var(--color-bg-dark);
            color: rgba(255,255,255,0.7);
            padding: 60px 0 30px;
        }
        .site-footer .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.2fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .site-footer .footer-brand .logo a {
            color: #fff;
            font-size: 1.5rem;
        }
        .site-footer .footer-brand .logo a span {
            color: var(--color-primary);
        }
        .site-footer .footer-brand p {
            font-size: 0.92rem;
            line-height: 1.8;
            margin-top: 12px;
            opacity: 0.7;
        }
        .site-footer .footer-col h4 {
            color: #fff;
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 16px;
        }
        .site-footer .footer-col ul li {
            margin-bottom: 8px;
        }
        .site-footer .footer-col ul li a {
            color: rgba(255,255,255,0.6);
            font-size: 0.92rem;
            transition: var(--transition);
        }
        .site-footer .footer-col ul li a:hover {
            color: var(--color-primary);
        }
        .site-footer .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.08);
            padding-top: 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 0.88rem;
            opacity: 0.6;
        }
        .site-footer .footer-bottom a {
            color: rgba(255,255,255,0.8);
        }
        .site-footer .footer-bottom a:hover {
            color: var(--color-primary);
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .site-footer .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
            .gift-hero h1 {
                font-size: 2.4rem;
            }
        }

        @media (max-width: 768px) {
            :root {
                --nav-height: 64px;
                --spacing-section: 48px;
            }

            .header-inner {
                padding: 0 16px;
                gap: 12px;
            }
            .logo a {
                font-size: 1.3rem;
            }
            .logo a i {
                font-size: 1.4rem;
            }

            .nav-search {
                display: none;
            }

            .nav-list {
                display: none;
                position: absolute;
                top: var(--nav-height);
                left: 0;
                right: 0;
                background: var(--color-bg-alt);
                flex-direction: column;
                padding: 16px 20px;
                gap: 4px;
                border-bottom: 2px solid var(--color-border);
                box-shadow: var(--shadow-lg);
                z-index: 999;
            }
            .nav-list.open {
                display: flex;
            }
            .nav-list li a {
                display: block;
                padding: 12px 18px;
                border-radius: var(--radius-sm);
                width: 100%;
            }

            .menu-toggle {
                display: flex;
            }

            .gift-hero h1 {
                font-size: 1.8rem;
            }
            .gift-hero p {
                font-size: 1rem;
            }
            .gift-hero .hero-stats {
                gap: 24px;
            }
            .gift-hero .hero-stats .stat-num {
                font-size: 1.6rem;
            }

            .section-title h2 {
                font-size: 1.6rem;
            }

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

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

            .stats-row {
                grid-template-columns: 1fr 1fr;
            }

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

            .cta-section h2 {
                font-size: 1.6rem;
            }
            .cta-section .cta-btn {
                padding: 14px 36px;
                font-size: 1rem;
            }

            .site-footer .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .site-footer .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

        @media (max-width: 520px) {
            .gift-hero {
                padding: 48px 0 36px;
            }
            .gift-hero h1 {
                font-size: 1.5rem;
            }
            .gift-hero .hero-stats {
                flex-direction: column;
                gap: 12px;
            }
            .process-steps {
                grid-template-columns: 1fr;
            }
            .stats-row {
                grid-template-columns: 1fr;
            }
            .gift-tabs .tab-btn {
                padding: 8px 18px;
                font-size: 0.85rem;
            }
            .section-title h2 {
                font-size: 1.4rem;
            }
        }

        /* ===== Utility ===== */
        .text-center {
            text-align: center;
        }
        .mt-1 { margin-top: 12px; }
        .mt-2 { margin-top: 24px; }
        .mb-1 { margin-bottom: 12px; }
        .mb-2 { margin-bottom: 24px; }

/* 确保Foundation不覆盖自定义设计 */
        .site-header .header-inner .nav-list {
            margin: 0;
            list-style: none;
        }
        .site-footer ul {
            margin: 0;
            list-style: none;
        }
        .site-footer ul li {
            margin-bottom: 8px;
        }
        .gift-card .gift-btn,
        .cta-section .cta-btn {
            text-decoration: none;
        }
        .gift-tabs .tab-btn {
            cursor: pointer;
        }
        .faq-item .faq-q {
            cursor: pointer;
        }
        .menu-toggle {
            cursor: pointer;
        }
        .nav-search .search-btn {
            cursor: pointer;
            border: none;
        }
        .gift-card .gift-btn {
            display: inline-block;
            text-align: center;
        }
        /* 确保移动端导航不溢出 */
        @media (max-width: 768px) {
            .site-header .header-inner {
                flex-wrap: nowrap;
            }
            .nav-list.open {
                display: flex;
                position: absolute;
                top: var(--nav-height);
                left: 0;
                right: 0;
                background: var(--color-bg-alt);
                flex-direction: column;
                padding: 16px 20px;
                gap: 4px;
                border-bottom: 2px solid var(--color-border);
                box-shadow: var(--shadow-lg);
                z-index: 999;
            }
        }