/* roulang page: index */
/* ===== 设计变量 ===== */
        :root {
            --primary: #0d2137;
            --primary-light: #1a3a5c;
            --primary-dark: #081524;
            --accent: #f0b90b;
            --accent-hover: #d4a509;
            --accent-light: #fce38a;
            --bg-light: #f4f6f8;
            --bg-card: #ffffff;
            --bg-dark: #0d2137;
            --text-primary: #1a1a2e;
            --text-secondary: #4a4a5a;
            --text-muted: #7a7a8a;
            --text-light: #f8f9fa;
            --border-color: #e2e6ea;
            --border-radius: 14px;
            --border-radius-sm: 8px;
            --border-radius-lg: 20px;
            --shadow-sm: 0 2px 8px rgba(0,0,0,0.04);
            --shadow-md: 0 6px 24px rgba(0,0,0,0.08);
            --shadow-lg: 0 12px 40px rgba(0,0,0,0.12);
            --shadow-accent: 0 6px 24px rgba(240,185,11,0.25);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
            --spacer: 2rem;
            --header-height: 72px;
        }

        /* ===== 基础重置 ===== */
        *, *::before, *::after { box-sizing: border-box; }
        html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
        body {
            margin: 0;
            padding: 0;
            font-family: var(--font-sans);
            font-weight: 400;
            font-size: 1rem;
            line-height: 1.65;
            color: var(--text-primary);
            background: var(--bg-light);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            padding-top: var(--header-height);
        }
        img { max-width: 100%; height: auto; display: block; }
        a { color: var(--primary); text-decoration: none; transition: var(--transition); }
        a:hover { color: var(--accent); }
        button, input, textarea { font-family: inherit; }
        ul, ol { padding-left: 0; list-style: none; margin: 0; }
        h1, h2, h3, h4, h5, h6 { line-height: 1.25; font-weight: 700; color: var(--primary); margin-top: 0; }
        p { margin-top: 0; }

        /* ===== 容器 ===== */
        .container-custom {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.25rem;
        }

        /* ===== 导航 ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1050;
            height: var(--header-height);
            background: rgba(13, 33, 55, 0.96);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(255,255,255,0.06);
            box-shadow: 0 2px 20px rgba(0,0,0,0.15);
            transition: var(--transition);
        }
        .site-header .navbar {
            padding: 0;
            height: var(--header-height);
        }
        .site-header .navbar-brand {
            font-size: 1.35rem;
            font-weight: 800;
            color: #fff;
            letter-spacing: 0.5px;
            padding: 0;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .site-header .navbar-brand i {
            color: var(--accent);
            font-size: 1.6rem;
        }
        .site-header .navbar-brand:hover { color: var(--accent); }
        .site-header .navbar-brand span { color: var(--accent); }

        .navbar-nav .nav-link {
            color: rgba(255,255,255,0.75) !important;
            font-weight: 500;
            font-size: 0.95rem;
            padding: 0.5rem 0.9rem !important;
            border-radius: var(--border-radius-sm);
            transition: var(--transition);
            position: relative;
        }
        .navbar-nav .nav-link:hover,
        .navbar-nav .nav-link:focus {
            color: #fff !important;
            background: rgba(255,255,255,0.08);
        }
        .navbar-nav .nav-link.active {
            color: var(--accent) !important;
            background: rgba(240,185,11,0.12);
        }
        .navbar-nav .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: var(--accent);
            border-radius: 4px;
        }

        .nav-cta-btn {
            background: var(--accent);
            color: var(--primary-dark) !important;
            font-weight: 700;
            padding: 0.5rem 1.4rem !important;
            border-radius: 50px;
            transition: var(--transition);
            margin-left: 0.5rem;
        }
        .nav-cta-btn:hover {
            background: var(--accent-hover);
            color: var(--primary-dark) !important;
            transform: translateY(-1px);
            box-shadow: var(--shadow-accent);
        }
        .nav-cta-btn i { margin-right: 0.4rem; }

        .navbar-toggler {
            border: 1px solid rgba(255,255,255,0.2);
            padding: 0.4rem 0.6rem;
            color: #fff;
            border-radius: var(--border-radius-sm);
        }
        .navbar-toggler:focus { box-shadow: 0 0 0 3px rgba(240,185,11,0.3); }
        .navbar-toggler-icon { filter: brightness(0) invert(1); }

        /* ===== Hero 首屏 ===== */
        .hero-section {
            position: relative;
            min-height: 580px;
            display: flex;
            align-items: center;
            background: var(--primary-dark) url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            overflow: hidden;
        }
        .hero-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(13,33,55,0.88) 30%, rgba(13,33,55,0.55) 70%, rgba(13,33,55,0.3) 100%);
            z-index: 1;
        }
        .hero-section::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 120px;
            background: linear-gradient(to top, var(--bg-light), transparent);
            z-index: 2;
        }
        .hero-content {
            position: relative;
            z-index: 3;
            width: 100%;
            padding: 3rem 0;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: rgba(240,185,11,0.15);
            border: 1px solid rgba(240,185,11,0.3);
            color: var(--accent);
            font-weight: 600;
            font-size: 0.85rem;
            padding: 0.35rem 1.2rem;
            border-radius: 50px;
            margin-bottom: 1.5rem;
            backdrop-filter: blur(4px);
        }
        .hero-badge i { font-size: 0.75rem; }
        .hero-title {
            font-size: 3rem;
            font-weight: 800;
            color: #fff;
            line-height: 1.15;
            margin-bottom: 1.2rem;
            text-shadow: 0 2px 20px rgba(0,0,0,0.2);
        }
        .hero-title span { color: var(--accent); }
        .hero-sub {
            font-size: 1.15rem;
            color: rgba(255,255,255,0.8);
            max-width: 600px;
            margin-bottom: 2rem;
            line-height: 1.7;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
            align-items: center;
        }
        .btn-hero {
            background: var(--accent);
            color: var(--primary-dark);
            font-weight: 700;
            font-size: 1.05rem;
            padding: 0.85rem 2.5rem;
            border-radius: 50px;
            border: none;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 0.6rem;
            box-shadow: var(--shadow-accent);
        }
        .btn-hero:hover {
            background: var(--accent-hover);
            color: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 10px 30px rgba(240,185,11,0.35);
        }
        .btn-hero-outline {
            background: transparent;
            color: #fff;
            font-weight: 600;
            font-size: 1rem;
            padding: 0.8rem 2.2rem;
            border-radius: 50px;
            border: 2px solid rgba(255,255,255,0.3);
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 0.6rem;
        }
        .btn-hero-outline:hover {
            border-color: var(--accent);
            color: var(--accent);
            background: rgba(240,185,11,0.08);
            transform: translateY(-2px);
        }
        .hero-stats {
            display: flex;
            gap: 2.5rem;
            margin-top: 2.8rem;
            flex-wrap: wrap;
        }
        .hero-stat-item {
            color: rgba(255,255,255,0.85);
        }
        .hero-stat-item .num {
            font-size: 1.8rem;
            font-weight: 800;
            color: #fff;
            display: block;
            line-height: 1.2;
        }
        .hero-stat-item .label {
            font-size: 0.85rem;
            color: rgba(255,255,255,0.6);
        }

        /* ===== 通用板块标题 ===== */
        .section-title {
            text-align: center;
            margin-bottom: 3rem;
        }
        .section-title h2 {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--primary);
            margin-bottom: 0.6rem;
        }
        .section-title p {
            font-size: 1.05rem;
            color: var(--text-muted);
            max-width: 600px;
            margin: 0 auto;
        }
        .section-title .title-accent {
            display: inline-block;
            width: 50px;
            height: 4px;
            background: var(--accent);
            border-radius: 4px;
            margin-top: 0.8rem;
        }

        /* ===== 通用板块间距 ===== */
        .section-block {
            padding: 4.5rem 0;
        }
        .section-block-alt {
            background: var(--bg-card);
        }
        .section-block-dark {
            background: var(--primary-dark);
            color: #fff;
        }
        .section-block-dark .section-title h2 { color: #fff; }
        .section-block-dark .section-title p { color: rgba(255,255,255,0.65); }

        /* ===== 平台特色卡片 ===== */
        .feature-card {
            background: var(--bg-card);
            border-radius: var(--border-radius);
            padding: 2rem 1.8rem;
            height: 100%;
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            text-align: center;
        }
        .feature-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-md);
            border-color: rgba(240,185,11,0.2);
        }
        .feature-card .icon-wrap {
            width: 64px;
            height: 64px;
            border-radius: 16px;
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            color: var(--accent);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.6rem;
            margin: 0 auto 1.2rem;
            transition: var(--transition);
        }
        .feature-card:hover .icon-wrap {
            transform: scale(1.05);
            box-shadow: 0 6px 20px rgba(13,33,55,0.2);
        }
        .feature-card h3 {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 0.6rem;
            color: var(--primary);
        }
        .feature-card p {
            font-size: 0.95rem;
            color: var(--text-secondary);
            margin-bottom: 0;
            line-height: 1.6;
        }

        /* ===== 分类入口卡片 ===== */
        .cat-card {
            position: relative;
            border-radius: var(--border-radius);
            overflow: hidden;
            height: 260px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: var(--primary-dark);
            box-shadow: var(--shadow-md);
            transition: var(--transition);
            cursor: pointer;
        }
        .cat-card img {
            position: absolute;
            inset: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition);
        }
        .cat-card .overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(13,33,55,0.75) 0%, rgba(13,33,55,0.3) 100%);
            z-index: 1;
            transition: var(--transition);
        }
        .cat-card .cat-body {
            position: relative;
            z-index: 2;
            text-align: center;
            color: #fff;
            padding: 1.5rem;
        }
        .cat-card .cat-body i {
            font-size: 2.2rem;
            color: var(--accent);
            margin-bottom: 0.8rem;
            display: block;
        }
        .cat-card .cat-body h3 {
            color: #fff;
            font-size: 1.4rem;
            font-weight: 700;
            margin-bottom: 0.4rem;
        }
        .cat-card .cat-body p {
            color: rgba(255,255,255,0.7);
            font-size: 0.9rem;
            margin-bottom: 1rem;
        }
        .cat-card .cat-body .btn-cat {
            display: inline-block;
            background: var(--accent);
            color: var(--primary-dark);
            font-weight: 600;
            padding: 0.4rem 1.6rem;
            border-radius: 50px;
            font-size: 0.9rem;
            transition: var(--transition);
        }
        .cat-card .cat-body .btn-cat:hover {
            background: var(--accent-hover);
            transform: translateY(-1px);
        }
        .cat-card:hover img { transform: scale(1.08); }
        .cat-card:hover .overlay { background: linear-gradient(135deg, rgba(13,33,55,0.85) 0%, rgba(13,33,55,0.4) 100%); }
        .cat-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }

        /* ===== 游戏推荐卡片 ===== */
        .game-card {
            background: var(--bg-card);
            border-radius: var(--border-radius);
            overflow: hidden;
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            height: 100%;
        }
        .game-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-md);
        }
        .game-card .game-img {
            height: 180px;
            background: var(--primary-light);
            position: relative;
            overflow: hidden;
        }
        .game-card .game-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .game-card .game-img .game-tag {
            position: absolute;
            top: 12px;
            left: 12px;
            background: var(--accent);
            color: var(--primary-dark);
            font-weight: 700;
            font-size: 0.75rem;
            padding: 0.2rem 0.9rem;
            border-radius: 50px;
        }
        .game-card .game-body {
            padding: 1.2rem 1.2rem 1.4rem;
        }
        .game-card .game-body h4 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 0.3rem;
            color: var(--primary);
        }
        .game-card .game-body .game-meta {
            font-size: 0.85rem;
            color: var(--text-muted);
            display: flex;
            align-items: center;
            gap: 0.8rem;
            margin-bottom: 0.6rem;
        }
        .game-card .game-body .game-meta i { margin-right: 0.3rem; }
        .game-card .game-body p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            margin-bottom: 1rem;
            line-height: 1.5;
        }
        .game-card .game-body .btn-game {
            background: var(--primary);
            color: #fff;
            font-weight: 600;
            font-size: 0.85rem;
            padding: 0.4rem 1.4rem;
            border-radius: 50px;
            border: none;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
        }
        .game-card .game-body .btn-game:hover {
            background: var(--primary-light);
            transform: translateY(-1px);
        }

        /* ===== 最新资讯列表 ===== */
        .news-card {
            background: var(--bg-card);
            border-radius: var(--border-radius);
            padding: 1.2rem 1.5rem;
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            margin-bottom: 1rem;
        }
        .news-card:hover {
            border-color: rgba(240,185,11,0.25);
            box-shadow: var(--shadow-md);
            transform: translateX(4px);
        }
        .news-card .news-meta {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 0.8rem;
            font-size: 0.82rem;
            color: var(--text-muted);
            margin-bottom: 0.4rem;
        }
        .news-card .news-meta .badge-cat {
            background: rgba(240,185,11,0.12);
            color: var(--accent);
            font-weight: 600;
            padding: 0.15rem 0.8rem;
            border-radius: 50px;
        }
        .news-card .news-meta .badge-cat i { margin-right: 0.3rem; }
        .news-card h4 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 0.3rem;
            color: var(--primary);
        }
        .news-card h4 a { color: inherit; }
        .news-card h4 a:hover { color: var(--accent); }
        .news-card p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            margin-bottom: 0;
            line-height: 1.5;
        }
        .news-empty {
            text-align: center;
            padding: 2.5rem 1rem;
            color: var(--text-muted);
            background: var(--bg-card);
            border-radius: var(--border-radius);
            border: 1px dashed var(--border-color);
        }
        .news-empty i { font-size: 2rem; margin-bottom: 0.5rem; display: block; }

        /* ===== 使用流程 ===== */
        .step-card {
            text-align: center;
            padding: 1.5rem 1rem;
            position: relative;
        }
        .step-card .step-num {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--accent);
            color: var(--primary-dark);
            font-weight: 800;
            font-size: 1.2rem;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 1rem;
            box-shadow: 0 4px 16px rgba(240,185,11,0.3);
        }
        .step-card h4 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 0.4rem;
            color: var(--primary);
        }
        .step-card p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            margin-bottom: 0;
            line-height: 1.5;
        }
        .step-arrow {
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            color: var(--accent);
            padding: 0 0.5rem;
        }
        @media (max-width: 767.98px) {
            .step-arrow { transform: rotate(90deg); padding: 0.5rem 0; }
        }

        /* ===== 数据统计 ===== */
        .stat-block {
            text-align: center;
            padding: 1.8rem 1rem;
        }
        .stat-block .stat-icon {
            font-size: 2.2rem;
            color: var(--accent);
            margin-bottom: 0.6rem;
        }
        .stat-block .stat-num {
            font-size: 2.5rem;
            font-weight: 800;
            color: #fff;
            line-height: 1.2;
            margin-bottom: 0.2rem;
        }
        .stat-block .stat-label {
            font-size: 0.95rem;
            color: rgba(255,255,255,0.65);
        }

        /* ===== FAQ ===== */
        .faq-item {
            background: var(--bg-card);
            border-radius: var(--border-radius-sm);
            border: 1px solid var(--border-color);
            margin-bottom: 0.8rem;
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover { border-color: rgba(240,185,11,0.2); }
        .faq-item .faq-q {
            padding: 1rem 1.4rem;
            font-weight: 600;
            font-size: 1rem;
            color: var(--primary);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            background: transparent;
            border: none;
            width: 100%;
            text-align: left;
            transition: var(--transition);
        }
        .faq-item .faq-q:hover { color: var(--accent); }
        .faq-item .faq-q i { color: var(--accent); transition: var(--transition); }
        .faq-item .faq-q[aria-expanded="true"] i { transform: rotate(180deg); }
        .faq-item .faq-a {
            padding: 0 1.4rem 1rem;
            font-size: 0.92rem;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* ===== CTA 区块 ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
            padding: 4rem 0;
            text-align: center;
        }
        .cta-section h2 {
            color: #fff;
            font-size: 2rem;
            font-weight: 800;
            margin-bottom: 0.8rem;
        }
        .cta-section p {
            color: rgba(255,255,255,0.75);
            font-size: 1.05rem;
            margin-bottom: 2rem;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
        }
        .cta-section .btn-cta {
            background: var(--accent);
            color: var(--primary-dark);
            font-weight: 700;
            font-size: 1.1rem;
            padding: 0.9rem 3rem;
            border-radius: 50px;
            border: none;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 0.6rem;
            box-shadow: var(--shadow-accent);
        }
        .cta-section .btn-cta:hover {
            background: var(--accent-hover);
            transform: translateY(-2px);
            box-shadow: 0 10px 30px rgba(240,185,11,0.35);
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--primary-dark);
            color: rgba(255,255,255,0.6);
            padding: 3rem 0 1.8rem;
            border-top: 1px solid rgba(255,255,255,0.06);
        }
        .site-footer .footer-brand {
            font-size: 1.2rem;
            font-weight: 800;
            color: #fff;
            display: flex;
            align-items: center;
            gap: 0.5rem;
            margin-bottom: 0.8rem;
        }
        .site-footer .footer-brand i { color: var(--accent); }
        .site-footer .footer-brand span { color: var(--accent); }
        .site-footer p { font-size: 0.88rem; line-height: 1.6; margin-bottom: 0.5rem; }
        .site-footer .footer-links {
            display: flex;
            flex-wrap: wrap;
            gap: 0.8rem 1.5rem;
            justify-content: center;
            margin-bottom: 1rem;
        }
        .site-footer .footer-links a {
            color: rgba(255,255,255,0.55);
            font-size: 0.88rem;
            transition: var(--transition);
        }
        .site-footer .footer-links a:hover { color: var(--accent); }
        .site-footer .footer-divider {
            border-color: rgba(255,255,255,0.06);
            margin: 1.2rem 0;
        }
        .site-footer .copyright {
            font-size: 0.82rem;
            color: rgba(255,255,255,0.4);
            text-align: center;
        }

        /* ===== 按钮通用 ===== */
        .btn-outline-accent {
            border: 2px solid var(--accent);
            color: var(--accent);
            background: transparent;
            font-weight: 600;
            border-radius: 50px;
            padding: 0.5rem 1.6rem;
            transition: var(--transition);
        }
        .btn-outline-accent:hover {
            background: var(--accent);
            color: var(--primary-dark);
            transform: translateY(-1px);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1199.98px) {
            .hero-title { font-size: 2.6rem; }
        }
        @media (max-width: 991.98px) {
            .hero-title { font-size: 2.2rem; }
            .hero-section { min-height: 480px; }
            .section-title h2 { font-size: 1.8rem; }
            .section-block { padding: 3.5rem 0; }
            .cat-card { height: 220px; }
        }
        @media (max-width: 767.98px) {
            body { padding-top: 62px; }
            :root { --header-height: 62px; }
            .site-header .navbar-brand { font-size: 1.1rem; }
            .site-header .navbar-brand i { font-size: 1.3rem; }
            .hero-section { min-height: 400px; }
            .hero-title { font-size: 1.7rem; }
            .hero-sub { font-size: 0.95rem; }
            .hero-stats { gap: 1.5rem; }
            .hero-stat-item .num { font-size: 1.4rem; }
            .section-block { padding: 2.8rem 0; }
            .section-title h2 { font-size: 1.5rem; }
            .feature-card { padding: 1.5rem 1.2rem; }
            .cat-card { height: 180px; }
            .cat-card .cat-body h3 { font-size: 1.1rem; }
            .stat-block .stat-num { font-size: 1.8rem; }
            .cta-section h2 { font-size: 1.5rem; }
            .cta-section .btn-cta { padding: 0.7rem 2rem; font-size: 0.95rem; }
            .navbar-nav .nav-link { padding: 0.4rem 0.8rem !important; font-size: 0.9rem; }
            .nav-cta-btn { margin-left: 0; margin-top: 0.3rem; }
        }
        @media (max-width: 520px) {
            .hero-title { font-size: 1.4rem; }
            .hero-sub { font-size: 0.88rem; }
            .hero-actions { flex-direction: column; align-items: stretch; }
            .btn-hero, .btn-hero-outline { justify-content: center; }
            .hero-stats { gap: 1rem; justify-content: space-between; }
            .hero-stat-item .num { font-size: 1.2rem; }
            .section-title h2 { font-size: 1.3rem; }
            .game-card .game-img { height: 140px; }
            .news-card { padding: 0.9rem 1.1rem; }
            .news-card h4 { font-size: 0.95rem; }
            .faq-item .faq-q { font-size: 0.9rem; padding: 0.8rem 1rem; }
            .faq-item .faq-a { font-size: 0.85rem; padding: 0 1rem 0.8rem; }
        }

        /* ===== 可访问性 ===== */
        a:focus-visible, button:focus-visible, input:focus-visible {
            outline: 3px solid var(--accent);
            outline-offset: 2px;
        }
        .navbar-nav .nav-link:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }

        /* ===== 动画辅助 ===== */
        .fade-in-up {
            opacity: 0;
            transform: translateY(20px);
            animation: fadeInUp 0.6s ease forwards;
        }
        @keyframes fadeInUp {
            to { opacity: 1; transform: translateY(0); }
        }
        .delay-1 { animation-delay: 0.1s; }
        .delay-2 { animation-delay: 0.2s; }
        .delay-3 { animation-delay: 0.3s; }
        .delay-4 { animation-delay: 0.4s; }

/* roulang page: article */
/* ===== 设计变量 ===== */
        :root {
            --primary: #e74c3c;
            --primary-dark: #c0392b;
            --primary-light: #fadbd8;
            --primary-gradient: linear-gradient(135deg, #e74c3c, #c0392b);
            --secondary: #2c3e50;
            --secondary-light: #34495e;
            --accent: #f39c12;
            --accent-gradient: linear-gradient(135deg, #f39c12, #e67e22);
            --bg-body: #f8f9fa;
            --bg-white: #ffffff;
            --bg-dark: #1a1a2e;
            --bg-footer: #0d0d1a;
            --text-primary: #1a1a2e;
            --text-secondary: #4a4a6a;
            --text-muted: #8888a0;
            --text-white: #ffffff;
            --text-light: #f0f0f5;
            --border-color: #e8e8f0;
            --border-light: #f0f0f5;
            --radius-sm: 8px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --radius-xl: 32px;
            --shadow-sm: 0 2px 8px rgba(0,0,0,0.04);
            --shadow-md: 0 8px 30px rgba(0,0,0,0.08);
            --shadow-lg: 0 16px 48px rgba(0,0,0,0.12);
            --shadow-hover: 0 20px 60px rgba(231,76,60,0.15);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
            --container-width: 1200px;
            --header-height: 72px;
        }

        /* ===== Reset & Base ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-family);
            background-color: var(--bg-body);
            color: var(--text-primary);
            line-height: 1.7;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            padding-top: var(--header-height);
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--primary-dark);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container-custom {
            max-width: var(--container-width);
            margin: 0 auto;
            padding: 0 24px;
        }
        @media (max-width: 768px) {
            .container-custom {
                padding: 0 16px;
            }
        }

        /* ===== Header / Nav ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1040;
            height: var(--header-height);
            background: rgba(255,255,255,0.97);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-color);
            box-shadow: 0 2px 20px rgba(0,0,0,0.04);
            transition: var(--transition);
        }
        .site-header .navbar {
            padding: 0;
            height: 100%;
        }
        .site-header .navbar-brand {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--text-primary);
            display: flex;
            align-items: center;
            gap: 10px;
            letter-spacing: -0.5px;
            padding: 0;
        }
        .site-header .navbar-brand i {
            color: var(--primary);
            font-size: 1.6rem;
            background: var(--primary-gradient);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .site-header .navbar-brand span {
            color: var(--primary);
            -webkit-text-fill-color: var(--primary);
        }
        .site-header .navbar-brand:hover {
            color: var(--text-primary);
        }
        .nav-link {
            font-weight: 500;
            color: var(--text-secondary) !important;
            padding: 0.5rem 1rem !important;
            border-radius: var(--radius-sm);
            transition: var(--transition);
            position: relative;
            font-size: 0.95rem;
        }
        .nav-link:hover,
        .nav-link:focus {
            color: var(--primary) !important;
            background: rgba(231,76,60,0.06);
        }
        .nav-link.active {
            color: var(--primary) !important;
            background: rgba(231,76,60,0.1);
        }
        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: var(--primary-gradient);
            border-radius: 4px;
        }
        .nav-cta-btn {
            background: var(--primary-gradient) !important;
            color: #fff !important;
            padding: 0.5rem 1.4rem !important;
            border-radius: 50px !important;
            font-weight: 600;
            box-shadow: 0 4px 15px rgba(231,76,60,0.3);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            margin-left: 8px;
        }
        .nav-cta-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 25px rgba(231,76,60,0.4);
            color: #fff !important;
            background: linear-gradient(135deg, #c0392b, #e74c3c) !important;
        }
        .navbar-toggler {
            border: none;
            padding: 6px 10px;
            border-radius: var(--radius-sm);
            background: rgba(231,76,60,0.08);
        }
        .navbar-toggler:focus {
            box-shadow: 0 0 0 3px rgba(231,76,60,0.2);
        }
        .navbar-toggler-icon {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='%23e74c3c' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
        }
        @media (max-width: 991px) {
            .site-header .navbar-collapse {
                background: rgba(255,255,255,0.98);
                backdrop-filter: blur(20px);
                padding: 16px 20px;
                border-radius: var(--radius-md);
                box-shadow: var(--shadow-lg);
                margin-top: 8px;
            }
            .nav-link.active::after {
                display: none;
            }
            .nav-cta-btn {
                margin-left: 0;
                margin-top: 8px;
                justify-content: center;
            }
        }

        /* ===== Article Hero Banner ===== */
        .article-hero {
            position: relative;
            padding: 60px 0 40px;
            background: var(--bg-dark);
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            background-attachment: fixed;
            overflow: hidden;
        }
        .article-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(26,26,46,0.92), rgba(231,76,60,0.6));
            z-index: 1;
        }
        .article-hero .container-custom {
            position: relative;
            z-index: 2;
        }
        .article-hero .breadcrumb-custom {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 8px;
            font-size: 0.9rem;
            color: rgba(255,255,255,0.7);
            margin-bottom: 20px;
        }
        .article-hero .breadcrumb-custom a {
            color: rgba(255,255,255,0.8);
            transition: var(--transition);
        }
        .article-hero .breadcrumb-custom a:hover {
            color: #fff;
        }
        .article-hero .breadcrumb-custom .separator {
            color: rgba(255,255,255,0.4);
        }
        .article-hero .breadcrumb-custom .current {
            color: #fff;
            font-weight: 500;
        }
        .article-hero h1 {
            font-size: 2.6rem;
            font-weight: 800;
            color: #fff;
            line-height: 1.25;
            margin-bottom: 16px;
            max-width: 800px;
            letter-spacing: -0.5px;
        }
        .article-hero .meta-bar {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 20px;
            color: rgba(255,255,255,0.8);
            font-size: 0.95rem;
        }
        .article-hero .meta-bar .badge-category {
            display: inline-block;
            padding: 4px 16px;
            background: rgba(255,255,255,0.15);
            backdrop-filter: blur(10px);
            border-radius: 50px;
            font-weight: 500;
            color: #fff;
            font-size: 0.85rem;
            border: 1px solid rgba(255,255,255,0.2);
        }
        .article-hero .meta-bar i {
            margin-right: 6px;
            color: var(--accent);
        }
        @media (max-width: 768px) {
            .article-hero {
                padding: 40px 0 30px;
            }
            .article-hero h1 {
                font-size: 1.8rem;
            }
            .article-hero .meta-bar {
                gap: 12px;
                font-size: 0.85rem;
            }
        }
        @media (max-width: 520px) {
            .article-hero h1 {
                font-size: 1.4rem;
            }
        }

        /* ===== Article Main Content ===== */
        .article-main {
            padding: 50px 0 60px;
        }
        .article-content-wrapper {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            padding: 40px 48px;
            border: 1px solid var(--border-color);
        }
        .article-content-wrapper .article-body {
            font-size: 1.05rem;
            line-height: 1.9;
            color: var(--text-secondary);
        }
        .article-content-wrapper .article-body h2,
        .article-content-wrapper .article-body h3,
        .article-content-wrapper .article-body h4 {
            color: var(--text-primary);
            font-weight: 700;
            margin-top: 32px;
            margin-bottom: 16px;
        }
        .article-content-wrapper .article-body h2 {
            font-size: 1.6rem;
            border-bottom: 2px solid var(--border-light);
            padding-bottom: 10px;
        }
        .article-content-wrapper .article-body h3 {
            font-size: 1.25rem;
        }
        .article-content-wrapper .article-body p {
            margin-bottom: 20px;
        }
        .article-content-wrapper .article-body ul,
        .article-content-wrapper .article-body ol {
            margin-bottom: 20px;
            padding-left: 24px;
        }
        .article-content-wrapper .article-body li {
            margin-bottom: 8px;
        }
        .article-content-wrapper .article-body a {
            color: var(--primary);
            font-weight: 500;
            text-decoration: underline;
            text-underline-offset: 3px;
        }
        .article-content-wrapper .article-body a:hover {
            color: var(--primary-dark);
        }
        .article-content-wrapper .article-body img {
            border-radius: var(--radius-md);
            margin: 24px 0;
            box-shadow: var(--shadow-md);
        }
        .article-content-wrapper .article-body blockquote {
            border-left: 4px solid var(--primary);
            padding: 16px 24px;
            margin: 24px 0;
            background: var(--primary-light);
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            font-style: italic;
            color: var(--text-secondary);
        }
        .article-content-wrapper .article-body code {
            background: #f0f0f5;
            padding: 2px 10px;
            border-radius: 4px;
            font-size: 0.9em;
            color: var(--primary-dark);
        }
        .article-content-wrapper .article-body pre {
            background: var(--bg-dark);
            color: #f8f8f8;
            padding: 20px 24px;
            border-radius: var(--radius-md);
            overflow-x: auto;
            margin: 24px 0;
        }
        .article-content-wrapper .article-body pre code {
            background: transparent;
            padding: 0;
            color: inherit;
        }
        .article-content-wrapper .article-body table {
            width: 100%;
            border-collapse: collapse;
            margin: 24px 0;
        }
        .article-content-wrapper .article-body th,
        .article-content-wrapper .article-body td {
            padding: 12px 16px;
            border: 1px solid var(--border-color);
            text-align: left;
        }
        .article-content-wrapper .article-body th {
            background: var(--bg-body);
            font-weight: 600;
            color: var(--text-primary);
        }
        .article-content-wrapper .article-body .content-image-caption {
            text-align: center;
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-top: -12px;
            margin-bottom: 24px;
        }
        @media (max-width: 768px) {
            .article-content-wrapper {
                padding: 24px 20px;
            }
            .article-content-wrapper .article-body {
                font-size: 0.98rem;
            }
            .article-content-wrapper .article-body h2 {
                font-size: 1.35rem;
            }
        }

        /* ===== Article Sidebar / Related ===== */
        .article-sidebar .card-relate {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
            padding: 24px;
            margin-bottom: 24px;
        }
        .article-sidebar .card-relate h5 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 16px;
            padding-bottom: 12px;
            border-bottom: 2px solid var(--border-light);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .article-sidebar .card-relate h5 i {
            color: var(--primary);
        }
        .article-sidebar .relate-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .article-sidebar .relate-list li {
            padding: 10px 0;
            border-bottom: 1px solid var(--border-light);
            display: flex;
            align-items: flex-start;
            gap: 10px;
        }
        .article-sidebar .relate-list li:last-child {
            border-bottom: none;
        }
        .article-sidebar .relate-list li a {
            color: var(--text-secondary);
            font-weight: 500;
            line-height: 1.5;
            transition: var(--transition);
            flex: 1;
        }
        .article-sidebar .relate-list li a:hover {
            color: var(--primary);
        }
        .article-sidebar .relate-list li .relate-date {
            font-size: 0.8rem;
            color: var(--text-muted);
            white-space: nowrap;
            margin-top: 2px;
        }
        .article-sidebar .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }
        .article-sidebar .tag-cloud .tag-item {
            display: inline-block;
            padding: 4px 14px;
            background: var(--bg-body);
            border-radius: 50px;
            font-size: 0.85rem;
            color: var(--text-secondary);
            border: 1px solid var(--border-color);
            transition: var(--transition);
        }
        .article-sidebar .tag-cloud .tag-item:hover {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            transform: translateY(-2px);
        }

        /* ===== CTA Section ===== */
        .article-cta {
            padding: 60px 0;
            background: var(--bg-dark);
            background-image: url('/assets/images/backpic/back-3.png');
            background-size: cover;
            background-position: center;
            background-attachment: fixed;
            position: relative;
        }
        .article-cta::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(26,26,46,0.9), rgba(231,76,60,0.5));
            z-index: 1;
        }
        .article-cta .container-custom {
            position: relative;
            z-index: 2;
            text-align: center;
        }
        .article-cta h2 {
            font-size: 2.2rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 16px;
        }
        .article-cta p {
            font-size: 1.1rem;
            color: rgba(255,255,255,0.85);
            max-width: 600px;
            margin: 0 auto 28px;
        }
        .article-cta .btn-cta {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 36px;
            background: var(--primary-gradient);
            color: #fff;
            font-weight: 700;
            font-size: 1.1rem;
            border-radius: 50px;
            box-shadow: 0 8px 30px rgba(231,76,60,0.4);
            transition: var(--transition);
            border: none;
        }
        .article-cta .btn-cta:hover {
            transform: translateY(-4px);
            box-shadow: 0 12px 40px rgba(231,76,60,0.5);
            color: #fff;
        }
        @media (max-width: 768px) {
            .article-cta h2 {
                font-size: 1.6rem;
            }
            .article-cta p {
                font-size: 0.98rem;
            }
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-footer);
            color: rgba(255,255,255,0.8);
            padding: 50px 0 30px;
            border-top: 3px solid var(--primary);
        }
        .site-footer .footer-brand {
            font-size: 1.4rem;
            font-weight: 800;
            color: #fff;
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 10px;
        }
        .site-footer .footer-brand i {
            color: var(--primary);
            font-size: 1.5rem;
        }
        .site-footer .footer-brand span {
            color: var(--primary);
        }
        .site-footer p {
            font-size: 0.9rem;
            color: rgba(255,255,255,0.6);
            max-width: 320px;
        }
        .site-footer .footer-links {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 8px 20px;
        }
        .site-footer .footer-links a {
            color: rgba(255,255,255,0.65);
            font-size: 0.9rem;
            font-weight: 500;
            transition: var(--transition);
            position: relative;
        }
        .site-footer .footer-links a::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--primary);
            transition: var(--transition);
        }
        .site-footer .footer-links a:hover {
            color: #fff;
        }
        .site-footer .footer-links a:hover::after {
            width: 100%;
        }
        .site-footer .footer-divider {
            border-color: rgba(255,255,255,0.08);
            margin: 24px 0 20px;
        }
        .site-footer .copyright {
            text-align: center;
            font-size: 0.85rem;
            color: rgba(255,255,255,0.4);
        }
        @media (max-width: 768px) {
            .site-footer .footer-links {
                gap: 6px 14px;
            }
            .site-footer .footer-brand {
                justify-content: center;
            }
            .site-footer p {
                text-align: center;
                margin: 0 auto 16px;
            }
        }

        /* ===== Article Not Found ===== */
        .not-found-box {
            text-align: center;
            padding: 60px 20px;
        }
        .not-found-box .not-found-icon {
            font-size: 4rem;
            color: var(--text-muted);
            margin-bottom: 20px;
        }
        .not-found-box h2 {
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 12px;
        }
        .not-found-box p {
            font-size: 1.05rem;
            color: var(--text-secondary);
            margin-bottom: 24px;
        }
        .not-found-box .btn-back {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            background: var(--primary-gradient);
            color: #fff;
            border-radius: 50px;
            font-weight: 600;
            transition: var(--transition);
        }
        .not-found-box .btn-back:hover {
            transform: translateY(-3px);
            box-shadow: 0 8px 25px rgba(231,76,60,0.3);
            color: #fff;
        }

        /* ===== Responsive fine-tune ===== */
        @media (max-width: 991px) {
            .article-sidebar {
                margin-top: 32px;
            }
        }
        @media (max-width: 520px) {
            .article-hero h1 {
                font-size: 1.3rem;
            }
            .article-content-wrapper {
                padding: 16px 14px;
            }
            .article-content-wrapper .article-body {
                font-size: 0.93rem;
            }
            .article-cta h2 {
                font-size: 1.3rem;
            }
            .article-cta .btn-cta {
                padding: 12px 24px;
                font-size: 0.98rem;
            }
        }

/* roulang page: category1 */
/* ========== 设计变量 ========== */
        :root {
            --primary: #e63946;
            --primary-dark: #c1121f;
            --primary-light: #f8d7da;
            --secondary: #1d3557;
            --secondary-light: #457b9d;
            --accent: #f4a261;
            --accent-dark: #e76f51;
            --bg-body: #f8f9fa;
            --bg-dark: #1a1a2e;
            --bg-card: #ffffff;
            --text-dark: #212529;
            --text-main: #343a40;
            --text-muted: #6c757d;
            --text-light: #f8f9fa;
            --border-color: #dee2e6;
            --border-light: #e9ecef;
            --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 20px 60px rgba(0, 0, 0, 0.15);
            --transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
            --container-w: 1200px;
            --header-h: 72px;
        }

        /* ========== Reset / Base ========== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-main);
            background: var(--bg-body);
            -webkit-font-smoothing: antialiased;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--primary-dark);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        textarea,
        select {
            font-family: inherit;
            font-size: inherit;
        }
        ul,
        ol {
            list-style: none;
        }

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

        /* ========== 导航 Header ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1050;
            height: var(--header-h);
            background: rgba(26, 26, 46, 0.96);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            box-shadow: 0 2px 20px rgba(0, 0, 0, 0.20);
        }
        .site-header .navbar {
            padding: 0;
            height: 100%;
        }
        .site-header .navbar-brand {
            font-size: 1.35rem;
            font-weight: 800;
            color: #fff;
            letter-spacing: 0.5px;
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 0;
            margin: 0;
        }
        .site-header .navbar-brand i {
            color: var(--primary);
            font-size: 1.6rem;
        }
        .site-header .navbar-brand span {
            color: var(--accent);
        }
        .site-header .navbar-brand:hover {
            color: #fff;
        }
        .site-header .nav-link {
            color: rgba(255, 255, 255, 0.80) !important;
            font-weight: 500;
            font-size: 0.95rem;
            padding: 8px 18px !important;
            border-radius: var(--radius-sm);
            transition: var(--transition);
            position: relative;
        }
        .site-header .nav-link:hover,
        .site-header .nav-link:focus {
            color: #fff !important;
            background: rgba(255, 255, 255, 0.08);
        }
        .site-header .nav-link.active {
            color: #fff !important;
            background: rgba(230, 57, 70, 0.25);
        }
        .site-header .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            border-radius: 2px;
            background: var(--primary);
        }
        .site-header .nav-cta-btn {
            background: var(--primary) !important;
            color: #fff !important;
            padding: 8px 22px !important;
            border-radius: 50px;
            font-weight: 600;
            display: flex;
            align-items: center;
            gap: 6px;
            margin-left: 8px;
        }
        .site-header .nav-cta-btn:hover {
            background: var(--primary-dark) !important;
            transform: translateY(-1px);
            box-shadow: 0 4px 16px rgba(230, 57, 70, 0.35);
        }
        .navbar-toggler {
            border: none;
            padding: 0;
            background: transparent;
        }
        .navbar-toggler-icon {
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3E%3Cpath stroke='rgba(255,255,255,0.85)' stroke-width='2.5' stroke-linecap='round' d='M4 7h22M4 15h22M4 23h22'/%3E%3C/svg%3E") !important;
            width: 28px;
            height: 28px;
        }
        @media (max-width: 991px) {
            .site-header {
                height: auto;
                min-height: var(--header-h);
            }
            .site-header .navbar-collapse {
                background: rgba(26, 26, 46, 0.98);
                padding: 16px 0;
                border-radius: 0 0 var(--radius-md) var(--radius-md);
                margin-top: 4px;
            }
            .site-header .nav-link {
                padding: 12px 20px !important;
                text-align: center;
            }
            .site-header .nav-link.active::after {
                display: none;
            }
            .site-header .nav-cta-btn {
                margin: 10px auto 0;
                justify-content: center;
                max-width: 200px;
            }
        }

        /* ========== 按钮 ========== */
        .btn-custom {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 32px;
            font-weight: 600;
            border-radius: 50px;
            border: none;
            transition: var(--transition);
            cursor: pointer;
            font-size: 1rem;
        }
        .btn-custom-primary {
            background: var(--primary);
            color: #fff;
        }
        .btn-custom-primary:hover {
            background: var(--primary-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(230, 57, 70, 0.30);
        }
        .btn-custom-secondary {
            background: var(--secondary);
            color: #fff;
        }
        .btn-custom-secondary:hover {
            background: #15263e;
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(29, 53, 87, 0.30);
        }
        .btn-custom-outline {
            background: transparent;
            color: var(--primary);
            border: 2px solid var(--primary);
        }
        .btn-custom-outline:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-2px);
        }
        .btn-custom-lg {
            padding: 16px 44px;
            font-size: 1.1rem;
        }

        /* ========== 标签 / 徽章 ========== */
        .badge-custom {
            display: inline-block;
            padding: 4px 16px;
            font-size: 0.8rem;
            font-weight: 600;
            border-radius: 50px;
            background: var(--primary-light);
            color: var(--primary-dark);
            letter-spacing: 0.3px;
        }
        .badge-custom-dark {
            background: rgba(255, 255, 255, 0.12);
            color: #fff;
        }
        .badge-custom-accent {
            background: rgba(244, 162, 97, 0.20);
            color: var(--accent-dark);
        }

        /* ========== Hero / Banner ========== */
        .page-banner {
            position: relative;
            padding: 100px 0 80px;
            background: var(--bg-dark);
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            background-blend-mode: overlay;
            min-height: 320px;
            display: flex;
            align-items: center;
        }
        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(26, 26, 46, 0.88) 0%, rgba(230, 57, 70, 0.40) 100%);
            z-index: 1;
        }
        .page-banner .container-custom {
            position: relative;
            z-index: 2;
        }
        .page-banner h1 {
            font-size: 2.8rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 16px;
            line-height: 1.2;
        }
        .page-banner p {
            font-size: 1.15rem;
            color: rgba(255, 255, 255, 0.85);
            max-width: 680px;
            margin-bottom: 0;
        }
        .page-banner .banner-badge {
            display: inline-block;
            padding: 6px 20px;
            background: rgba(230, 57, 70, 0.30);
            border: 1px solid rgba(255, 255, 255, 0.15);
            border-radius: 50px;
            color: #fff;
            font-size: 0.85rem;
            font-weight: 500;
            margin-bottom: 20px;
            backdrop-filter: blur(4px);
        }
        @media (max-width: 768px) {
            .page-banner {
                padding: 80px 0 60px;
                min-height: 240px;
            }
            .page-banner h1 {
                font-size: 2rem;
            }
            .page-banner p {
                font-size: 1rem;
            }
        }

        /* ========== 板块通用 ========== */
        .section-padding {
            padding: 80px 0;
        }
        .section-title {
            font-size: 2rem;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 12px;
        }
        .section-subtitle {
            font-size: 1.05rem;
            color: var(--text-muted);
            max-width: 640px;
            margin: 0 auto 48px;
            text-align: center;
        }
        .section-divider {
            width: 60px;
            height: 4px;
            border-radius: 2px;
            background: var(--primary);
            margin: 0 auto 16px;
        }
        .text-center .section-divider {
            margin-left: auto;
            margin-right: auto;
        }
        @media (max-width: 768px) {
            .section-padding {
                padding: 56px 0;
            }
            .section-title {
                font-size: 1.6rem;
            }
            .section-subtitle {
                font-size: 0.95rem;
                margin-bottom: 36px;
            }
        }

        /* ========== 卡片 ========== */
        .card-custom {
            background: var(--bg-card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: var(--transition);
            height: 100%;
        }
        .card-custom:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-md);
            border-color: transparent;
        }
        .card-custom .card-img-top {
            width: 100%;
            height: 200px;
            object-fit: cover;
        }
        .card-custom .card-body {
            padding: 24px;
        }
        .card-custom .card-title {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 10px;
        }
        .card-custom .card-text {
            font-size: 0.95rem;
            color: var(--text-muted);
            margin-bottom: 16px;
            line-height: 1.6;
        }
        .card-custom .card-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 0.85rem;
            color: var(--text-muted);
        }
        .card-custom .card-meta i {
            color: var(--primary);
        }

        /* ========== 步骤 / 时间轴 ========== */
        .step-timeline {
            position: relative;
            padding-left: 40px;
        }
        .step-timeline::before {
            content: '';
            position: absolute;
            left: 16px;
            top: 0;
            bottom: 0;
            width: 3px;
            background: linear-gradient(to bottom, var(--primary), var(--secondary-light));
            border-radius: 2px;
        }
        .step-item {
            position: relative;
            padding-bottom: 40px;
            padding-left: 20px;
        }
        .step-item:last-child {
            padding-bottom: 0;
        }
        .step-item::before {
            content: '';
            position: absolute;
            left: -32px;
            top: 4px;
            width: 16px;
            height: 16px;
            border-radius: 50%;
            background: var(--primary);
            border: 3px solid #fff;
            box-shadow: 0 0 0 3px var(--primary);
        }
        .step-item .step-num {
            font-size: 0.8rem;
            font-weight: 700;
            color: var(--primary);
            text-transform: uppercase;
            letter-spacing: 1px;
            margin-bottom: 4px;
        }
        .step-item h4 {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 6px;
        }
        .step-item p {
            font-size: 0.95rem;
            color: var(--text-muted);
            margin-bottom: 0;
            line-height: 1.6;
        }
        @media (max-width: 576px) {
            .step-timeline {
                padding-left: 32px;
            }
            .step-item {
                padding-left: 12px;
            }
            .step-item::before {
                left: -26px;
                width: 14px;
                height: 14px;
            }
        }

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

        /* ========== CTA ========== */
        .cta-section {
            background: var(--bg-dark);
            background-image: url('/assets/images/backpic/back-3.png');
            background-size: cover;
            background-position: center;
            background-blend-mode: overlay;
            padding: 80px 0;
            text-align: center;
            position: relative;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(26, 26, 46, 0.90) 0%, rgba(230, 57, 70, 0.50) 100%);
            z-index: 1;
        }
        .cta-section .container-custom {
            position: relative;
            z-index: 2;
        }
        .cta-section h2 {
            font-size: 2.2rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
        }
        .cta-section p {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.80);
            max-width: 600px;
            margin: 0 auto 32px;
        }
        .cta-section .btn-custom {
            font-size: 1.1rem;
            padding: 16px 48px;
        }
        @media (max-width: 768px) {
            .cta-section {
                padding: 56px 0;
            }
            .cta-section h2 {
                font-size: 1.6rem;
            }
            .cta-section p {
                font-size: 0.95rem;
            }
        }

        /* ========== 页脚 Footer ========== */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(255, 255, 255, 0.70);
            padding: 48px 0 32px;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
        }
        .site-footer .footer-brand {
            font-size: 1.3rem;
            font-weight: 700;
            color: #fff;
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 8px;
        }
        .site-footer .footer-brand i {
            color: var(--primary);
        }
        .site-footer .footer-brand span {
            color: var(--accent);
        }
        .site-footer p {
            font-size: 0.9rem;
            margin-bottom: 0;
            color: rgba(255, 255, 255, 0.55);
        }
        .site-footer .footer-links {
            display: flex;
            flex-wrap: wrap;
            gap: 8px 24px;
            justify-content: center;
        }
        .site-footer .footer-links a {
            color: rgba(255, 255, 255, 0.65);
            font-size: 0.9rem;
            transition: var(--transition);
            position: relative;
        }
        .site-footer .footer-links a:hover {
            color: var(--primary);
        }
        .site-footer .footer-links a::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--primary);
            transition: var(--transition);
        }
        .site-footer .footer-links a:hover::after {
            width: 100%;
        }
        .site-footer .footer-divider {
            border-color: rgba(255, 255, 255, 0.08);
            margin: 24px 0 20px;
        }
        .site-footer .copyright {
            text-align: center;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.40);
        }
        @media (max-width: 768px) {
            .site-footer .footer-links {
                gap: 6px 16px;
                justify-content: center;
            }
            .site-footer .footer-brand {
                justify-content: center;
            }
            .site-footer p {
                text-align: center;
            }
        }

        /* ========== 工具类 ========== */
        .bg-soft-primary {
            background: rgba(230, 57, 70, 0.04);
        }
        .bg-soft-dark {
            background: rgba(26, 26, 46, 0.03);
        }
        .rounded-custom {
            border-radius: var(--radius-md);
        }
        .shadow-custom {
            box-shadow: var(--shadow-sm);
        }
        .mb-section {
            margin-bottom: 80px;
        }
        @media (max-width: 768px) {
            .mb-section {
                margin-bottom: 56px;
            }
        }

        /* ========== 分类页特有 ========== */
        .guide-card {
            background: var(--bg-card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            padding: 32px 28px;
            transition: var(--transition);
            height: 100%;
            text-align: center;
        }
        .guide-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-md);
            border-color: transparent;
        }
        .guide-card .guide-icon {
            width: 64px;
            height: 64px;
            border-radius: 50%;
            background: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 20px;
            font-size: 1.6rem;
            transition: var(--transition);
        }
        .guide-card:hover .guide-icon {
            background: var(--primary);
            color: #fff;
            transform: scale(1.05);
        }
        .guide-card h5 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 10px;
        }
        .guide-card p {
            font-size: 0.92rem;
            color: var(--text-muted);
            margin-bottom: 16px;
            line-height: 1.6;
        }
        .guide-card .guide-step {
            font-size: 0.85rem;
            color: var(--secondary-light);
            font-weight: 500;
        }

        .tip-box {
            background: linear-gradient(135deg, rgba(230, 57, 70, 0.06), rgba(69, 123, 157, 0.06));
            border-left: 4px solid var(--primary);
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            padding: 20px 24px;
            margin-bottom: 20px;
        }
        .tip-box .tip-title {
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 4px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .tip-box .tip-title i {
            color: var(--primary);
        }
        .tip-box p {
            margin-bottom: 0;
            color: var(--text-muted);
            font-size: 0.95rem;
        }

        /* ========== 响应式微调 ========== */
        @media (max-width: 576px) {
            .guide-card {
                padding: 24px 18px;
            }
            .guide-card .guide-icon {
                width: 52px;
                height: 52px;
                font-size: 1.3rem;
            }
        }

        /* ========== 图片区块 ========== */
        .img-rounded {
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
        }

        /* ========== 统计数字 ========== */
        .stat-number {
            font-size: 2.4rem;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
        }
        .stat-label {
            font-size: 0.95rem;
            color: var(--text-muted);
        }

/* roulang page: category2 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #2563eb;
            --primary-dark: #1d4ed8;
            --primary-light: #60a5fa;
            --primary-bg: #eff6ff;
            --secondary: #f59e0b;
            --secondary-dark: #d97706;
            --secondary-light: #fbbf24;
            --accent: #8b5cf6;
            --accent-light: #a78bfa;
            --bg: #ffffff;
            --bg-alt: #f8fafc;
            --bg-card: #ffffff;
            --text: #0f172a;
            --text-secondary: #475569;
            --text-muted: #94a3b8;
            --border: #e2e8f0;
            --border-light: #f1f5f9;
            --radius: 16px;
            --radius-sm: 8px;
            --radius-lg: 24px;
            --shadow: 0 4px 24px rgba(0, 0, 0, 0.06);
            --shadow-hover: 0 12px 40px rgba(0, 0, 0, 0.10);
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
            --transition: all 0.30s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
            --container-max: 1200px;
            --header-h: 72px;
        }

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

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

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text);
            background: var(--bg);
            padding-top: var(--header-h);
        }

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

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        button,
        input,
        textarea {
            font-family: inherit;
            font-size: inherit;
            transition: var(--transition);
        }
        button:focus-visible,
        input:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--primary-light);
            outline-offset: 2px;
        }

        ul,
        ol {
            list-style: none;
        }

        /* ===== 容器 ===== */
        .container-custom {
            max-width: var(--container-max);
            margin-left: auto;
            margin-right: auto;
            padding-left: 24px;
            padding-right: 24px;
        }

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

        /* ===== 头部 / 导航 ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1050;
            height: var(--header-h);
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border);
            box-shadow: 0 1px 8px rgba(0, 0, 0, 0.04);
            transition: var(--transition);
        }

        .site-header .navbar {
            padding: 0;
            height: 100%;
            flex-wrap: nowrap;
        }

        .site-header .navbar-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--text);
            letter-spacing: -0.3px;
            padding: 0;
            margin: 0;
        }
        .site-header .navbar-brand i {
            color: var(--primary);
            font-size: 1.6rem;
        }
        .site-header .navbar-brand span {
            color: var(--primary);
        }

        .site-header .navbar-nav .nav-link {
            padding: 8px 18px;
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: var(--radius-sm);
            transition: var(--transition);
            white-space: nowrap;
        }
        .site-header .navbar-nav .nav-link:hover,
        .site-header .navbar-nav .nav-link:focus {
            color: var(--primary);
            background: var(--primary-bg);
        }
        .site-header .navbar-nav .nav-link.active {
            color: var(--primary);
            background: var(--primary-bg);
            font-weight: 600;
        }

        .site-header .navbar-nav .nav-cta-btn {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 24px;
            background: var(--primary);
            color: #fff !important;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.95rem;
            margin-left: 8px;
            box-shadow: 0 4px 14px rgba(37, 99, 235, 0.30);
        }
        .site-header .navbar-nav .nav-cta-btn:hover {
            background: var(--primary-dark);
            transform: translateY(-1px);
            box-shadow: 0 6px 20px rgba(37, 99, 235, 0.40);
        }
        .site-header .navbar-nav .nav-cta-btn i {
            font-size: 0.9rem;
        }

        .navbar-toggler {
            border: none;
            padding: 4px 8px;
            border-radius: var(--radius-sm);
            color: var(--text);
        }
        .navbar-toggler:focus {
            box-shadow: none;
            outline: 2px solid var(--primary-light);
        }
        .navbar-toggler-icon {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(15,23,42,0.7)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
        }

        @media (max-width: 991.98px) {
            .site-header .navbar-collapse {
                background: rgba(255, 255, 255, 0.98);
                backdrop-filter: blur(16px);
                border-radius: var(--radius);
                padding: 16px 20px;
                margin-top: 8px;
                box-shadow: var(--shadow-hover);
                border: 1px solid var(--border);
            }
            .site-header .navbar-nav .nav-link {
                padding: 10px 16px;
                font-size: 1rem;
            }
            .site-header .navbar-nav .nav-cta-btn {
                margin-left: 0;
                margin-top: 8px;
                justify-content: center;
            }
        }

        @media (max-width: 576px) {
            .site-header .navbar-brand {
                font-size: 1.1rem;
            }
            .site-header .navbar-brand i {
                font-size: 1.3rem;
            }
        }

        /* ===== 页面标题区 ===== */
        .page-hero {
            padding: 60px 0 50px;
            background: linear-gradient(135deg, var(--primary-bg) 0%, #f0f4ff 100%);
            border-bottom: 1px solid var(--border);
            position: relative;
            overflow: hidden;
        }
        .page-hero::before {
            content: '';
            position: absolute;
            top: -40%;
            right: -10%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(37, 99, 235, 0.06) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .page-hero h1 {
            font-size: 2.6rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            color: var(--text);
            margin-bottom: 12px;
        }
        .page-hero h1 i {
            color: var(--primary);
            margin-right: 10px;
        }
        .page-hero p {
            font-size: 1.15rem;
            color: var(--text-secondary);
            max-width: 680px;
            margin: 0 auto;
        }
        .page-hero .breadcrumb-custom {
            display: flex;
            justify-content: center;
            gap: 8px;
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-bottom: 20px;
        }
        .page-hero .breadcrumb-custom a {
            color: var(--primary);
        }
        .page-hero .breadcrumb-custom span {
            color: var(--text-secondary);
        }

        @media (max-width: 768px) {
            .page-hero {
                padding: 40px 0 36px;
            }
            .page-hero h1 {
                font-size: 1.8rem;
            }
            .page-hero p {
                font-size: 1rem;
            }
        }

        /* ===== 通用板块 ===== */
        .section-block {
            padding: 70px 0;
        }
        .section-block-alt {
            background: var(--bg-alt);
        }
        .section-title {
            font-size: 2rem;
            font-weight: 700;
            letter-spacing: -0.3px;
            color: var(--text);
            margin-bottom: 8px;
        }
        .section-subtitle {
            font-size: 1.05rem;
            color: var(--text-secondary);
            max-width: 600px;
            margin: 0 auto 40px;
        }
        .section-divider {
            width: 50px;
            height: 4px;
            background: var(--primary);
            border-radius: 4px;
            margin: 12px auto 28px;
        }

        @media (max-width: 768px) {
            .section-block {
                padding: 48px 0;
            }
            .section-title {
                font-size: 1.6rem;
            }
            .section-subtitle {
                font-size: 0.95rem;
                margin-bottom: 28px;
            }
        }

        /* ===== 游戏卡片 ===== */
        .game-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
            border: 1px solid var(--border);
            transition: var(--transition);
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .game-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
            border-color: var(--primary-light);
        }
        .game-card .card-img-wrap {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16 / 10;
            background: var(--bg-alt);
        }
        .game-card .card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition);
        }
        .game-card:hover .card-img-wrap img {
            transform: scale(1.05);
        }
        .game-card .card-img-wrap .badge-top {
            position: absolute;
            top: 12px;
            left: 12px;
            background: var(--secondary);
            color: #fff;
            font-size: 0.75rem;
            font-weight: 600;
            padding: 4px 14px;
            border-radius: 50px;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
        }
        .game-card .card-img-wrap .badge-hot {
            background: #ef4444;
        }
        .game-card .card-img-wrap .badge-new {
            background: var(--accent);
        }
        .game-card .card-body {
            padding: 20px 22px 22px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .game-card .card-body h3 {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 6px;
        }
        .game-card .card-body .game-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
            margin-bottom: 10px;
        }
        .game-card .card-body .game-tags span {
            font-size: 0.75rem;
            padding: 2px 12px;
            border-radius: 50px;
            background: var(--primary-bg);
            color: var(--primary);
            font-weight: 500;
        }
        .game-card .card-body p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            flex: 1;
            margin-bottom: 14px;
            line-height: 1.6;
        }
        .game-card .card-body .game-meta {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding-top: 12px;
            border-top: 1px solid var(--border-light);
            font-size: 0.85rem;
            color: var(--text-muted);
        }
        .game-card .card-body .game-meta .rating {
            color: var(--secondary);
        }
        .game-card .card-body .game-meta .rating i {
            margin-right: 2px;
        }
        .game-card .card-body .btn-play {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 20px;
            border-radius: 50px;
            background: var(--primary);
            color: #fff;
            font-size: 0.85rem;
            font-weight: 600;
            border: none;
            transition: var(--transition);
        }
        .game-card .card-body .btn-play:hover {
            background: var(--primary-dark);
            transform: translateY(-1px);
            box-shadow: 0 4px 14px rgba(37, 99, 235, 0.30);
        }

        /* ===== 分类筛选标签 ===== */
        .filter-tabs {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 10px;
            margin-bottom: 36px;
        }
        .filter-tabs .filter-btn {
            padding: 8px 24px;
            border-radius: 50px;
            font-size: 0.9rem;
            font-weight: 500;
            background: var(--bg);
            border: 1px solid var(--border);
            color: var(--text-secondary);
            cursor: pointer;
            transition: var(--transition);
        }
        .filter-tabs .filter-btn:hover {
            border-color: var(--primary-light);
            color: var(--primary);
            background: var(--primary-bg);
        }
        .filter-tabs .filter-btn.active {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            box-shadow: 0 4px 14px rgba(37, 99, 235, 0.25);
        }

        /* ===== 排行榜 ===== */
        .rank-list {
            counter-reset: rank;
        }
        .rank-item {
            display: flex;
            align-items: center;
            gap: 18px;
            padding: 18px 22px;
            background: var(--bg-card);
            border-radius: var(--radius);
            border: 1px solid var(--border);
            margin-bottom: 12px;
            transition: var(--transition);
            cursor: default;
        }
        .rank-item:hover {
            border-color: var(--primary-light);
            box-shadow: var(--shadow-sm);
            transform: translateX(4px);
        }
        .rank-item .rank-num {
            counter-increment: rank;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: var(--primary-bg);
            color: var(--primary);
            font-weight: 700;
            font-size: 1rem;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }
        .rank-item:nth-child(1) .rank-num {
            background: var(--secondary);
            color: #fff;
        }
        .rank-item:nth-child(2) .rank-num {
            background: #94a3b8;
            color: #fff;
        }
        .rank-item:nth-child(3) .rank-num {
            background: #b45309;
            color: #fff;
        }
        .rank-item .rank-info {
            flex: 1;
            min-width: 0;
        }
        .rank-item .rank-info h4 {
            font-size: 1rem;
            font-weight: 600;
            margin-bottom: 2px;
        }
        .rank-item .rank-info p {
            font-size: 0.85rem;
            color: var(--text-secondary);
            margin: 0;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }
        .rank-item .rank-score {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--secondary);
            flex-shrink: 0;
        }
        .rank-item .rank-score small {
            font-size: 0.75rem;
            font-weight: 400;
            color: var(--text-muted);
        }

        @media (max-width: 576px) {
            .rank-item {
                flex-wrap: wrap;
                gap: 10px;
                padding: 14px 16px;
            }
            .rank-item .rank-info p {
                white-space: normal;
            }
            .rank-item .rank-score {
                width: 100%;
                text-align: right;
            }
        }

        /* ===== 特色区块 ===== */
        .feature-grid .feature-item {
            text-align: center;
            padding: 32px 20px;
            border-radius: var(--radius);
            background: var(--bg-card);
            border: 1px solid var(--border);
            transition: var(--transition);
            height: 100%;
        }
        .feature-grid .feature-item:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow);
            border-color: var(--primary-light);
        }
        .feature-grid .feature-item .icon-wrap {
            width: 64px;
            height: 64px;
            border-radius: 50%;
            background: var(--primary-bg);
            color: var(--primary);
            font-size: 1.6rem;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 16px;
            transition: var(--transition);
        }
        .feature-grid .feature-item:hover .icon-wrap {
            background: var(--primary);
            color: #fff;
        }
        .feature-grid .feature-item h4 {
            font-size: 1.1rem;
            font-weight: 600;
            margin-bottom: 8px;
        }
        .feature-grid .feature-item p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            margin: 0;
        }

        /* ===== FAQ ===== */
        .faq-accordion .accordion-item {
            border: 1px solid var(--border);
            border-radius: var(--radius-sm) !important;
            margin-bottom: 10px;
            overflow: hidden;
            background: var(--bg-card);
        }
        .faq-accordion .accordion-button {
            font-size: 1rem;
            font-weight: 600;
            color: var(--text);
            padding: 18px 22px;
            background: transparent;
            box-shadow: none;
            border: none;
        }
        .faq-accordion .accordion-button:not(.collapsed) {
            color: var(--primary);
            background: var(--primary-bg);
        }
        .faq-accordion .accordion-button::after {
            background-size: 1rem;
            transition: var(--transition);
        }
        .faq-accordion .accordion-button:focus {
            box-shadow: none;
            outline: 2px solid var(--primary-light);
            outline-offset: -2px;
        }
        .faq-accordion .accordion-body {
            padding: 0 22px 18px;
            font-size: 0.95rem;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            padding: 60px 0;
            color: #fff;
            text-align: center;
            border-radius: 0;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: -30%;
            right: -10%;
            width: 400px;
            height: 400px;
            background: rgba(255, 255, 255, 0.04);
            border-radius: 50%;
            pointer-events: none;
        }
        .cta-section h2 {
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 12px;
        }
        .cta-section p {
            font-size: 1.1rem;
            opacity: 0.9;
            max-width: 600px;
            margin: 0 auto 28px;
        }
        .cta-section .btn-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 40px;
            border-radius: 50px;
            background: #fff;
            color: var(--primary);
            font-weight: 700;
            font-size: 1.05rem;
            border: none;
            transition: var(--transition);
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.15);
        }
        .cta-section .btn-cta:hover {
            background: var(--secondary);
            color: #fff;
            transform: translateY(-3px);
            box-shadow: 0 12px 40px rgba(0, 0, 0, 0.25);
        }

        @media (max-width: 768px) {
            .cta-section {
                padding: 44px 0;
            }
            .cta-section h2 {
                font-size: 1.5rem;
            }
            .cta-section p {
                font-size: 0.95rem;
            }
            .cta-section .btn-cta {
                padding: 12px 30px;
                font-size: 0.95rem;
            }
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: #0f172a;
            color: #cbd5e1;
            padding: 48px 0 32px;
            font-size: 0.9rem;
        }
        .site-footer .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.25rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 6px;
        }
        .site-footer .footer-brand i {
            color: var(--primary-light);
            font-size: 1.4rem;
        }
        .site-footer .footer-brand span {
            color: var(--primary-light);
        }
        .site-footer p {
            color: #94a3b8;
            margin: 6px 0 0;
            font-size: 0.9rem;
        }
        .site-footer .footer-links {
            display: flex;
            flex-wrap: wrap;
            justify-content: flex-end;
            gap: 8px 20px;
        }
        .site-footer .footer-links a {
            color: #94a3b8;
            font-size: 0.9rem;
            transition: var(--transition);
            position: relative;
        }
        .site-footer .footer-links a::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 1px;
            background: var(--primary-light);
            transition: var(--transition);
        }
        .site-footer .footer-links a:hover {
            color: #fff;
        }
        .site-footer .footer-links a:hover::after {
            width: 100%;
        }
        .site-footer .footer-divider {
            border-color: rgba(255, 255, 255, 0.08);
            margin: 28px 0 20px;
        }
        .site-footer .copyright {
            text-align: center;
            color: #64748b;
            font-size: 0.85rem;
        }

        @media (max-width: 768px) {
            .site-footer .footer-links {
                justify-content: center;
            }
            .site-footer .footer-brand {
                justify-content: center;
            }
            .site-footer p {
                text-align: center;
            }
        }

        /* ===== 附加工具 ===== */
        .text-primary-custom {
            color: var(--primary);
        }
        .bg-primary-soft {
            background: var(--primary-bg);
        }
        .rounded-custom {
            border-radius: var(--radius);
        }
        .shadow-custom {
            box-shadow: var(--shadow);
        }

        /* ===== 响应式微调 ===== */
        @media (max-width: 576px) {
            .filter-tabs .filter-btn {
                padding: 6px 16px;
                font-size: 0.8rem;
            }
            .game-card .card-body {
                padding: 16px 16px 18px;
            }
            .game-card .card-body h3 {
                font-size: 1rem;
            }
        }