/* roulang page: index */
/* ===== 设计变量 ===== */
        :root {
            --primary: #2563eb;
            --primary-dark: #1d4ed8;
            --primary-light: #3b82f6;
            --primary-bg: #eff6ff;
            --secondary: #0f172a;
            --secondary-light: #1e293b;
            --accent: #f59e0b;
            --accent-light: #fbbf24;
            --success: #10b981;
            --info: #06b6d4;
            --body-bg: #ffffff;
            --body-color: #1e293b;
            --text-muted: #64748b;
            --text-light: #94a3b8;
            --border-color: #e2e8f0;
            --border-light: #f1f5f9;
            --card-bg: #ffffff;
            --card-shadow: 0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
            --card-shadow-hover: 0 10px 25px rgba(0,0,0,0.08), 0 4px 10px rgba(0,0,0,0.04);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
            --container-max: 1200px;
            --header-height: 72px;
        }

        /* ===== Reset & Base ===== */
        *, *::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-size: 16px;
            line-height: 1.7;
            color: var(--body-color);
            background: var(--body-bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        a { color: var(--primary); text-decoration: none; transition: color var(--transition); }
        a:hover { color: var(--primary-dark); }
        img { max-width: 100%; height: auto; display: block; }
        .container { max-width: var(--container-max); padding-left: 20px; padding-right: 20px; }
        .container-fluid { padding-left: 24px; padding-right: 24px; }
        
        /* ===== 版式层级 ===== */
        h1, h2, h3, h4, h5, h6 {
            font-weight: 700;
            line-height: 1.3;
            color: var(--secondary);
            margin-top: 0;
        }
        h1 { font-size: 2.75rem; letter-spacing: -0.02em; }
        h2 { font-size: 2rem; letter-spacing: -0.01em; }
        h3 { font-size: 1.5rem; }
        h4 { font-size: 1.25rem; }
        h5 { font-size: 1.1rem; }
        .section-title { margin-bottom: 0.5rem; }
        .section-subtitle { color: var(--text-muted); font-size: 1.1rem; max-width: 640px; }

        /* ===== 导航 ===== */
        .navbar {
            height: var(--header-height);
            background: rgba(255,255,255,0.96);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-light);
            padding: 0;
            transition: box-shadow var(--transition);
        }
        .navbar.scrolled { box-shadow: 0 2px 20px rgba(0,0,0,0.06); }
        .navbar .container { height: 100%; display: flex; align-items: center; }
        .navbar-brand {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--secondary);
            letter-spacing: -0.03em;
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 0;
        }
        .navbar-brand:hover { color: var(--primary); }
        .navbar-brand .brand-icon {
            width: 38px; height: 38px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            border-radius: var(--radius-sm);
            display: flex; align-items: center; justify-content: center;
            color: #fff; font-size: 1.1rem; font-weight: 700;
        }
        .navbar-nav { gap: 4px; }
        .navbar-nav .nav-link {
            padding: 8px 18px;
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--body-color);
            border-radius: var(--radius-sm);
            transition: all var(--transition);
            position: relative;
        }
        .navbar-nav .nav-link:hover,
        .navbar-nav .nav-link:focus-visible {
            color: var(--primary);
            background: var(--primary-bg);
        }
        .navbar-nav .nav-link.active {
            color: var(--primary);
            background: var(--primary-bg);
            font-weight: 600;
        }
        .navbar-nav .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: var(--primary);
            border-radius: 2px;
        }
        .nav-cta {
            background: linear-gradient(135deg, var(--primary), var(--primary-dark)) !important;
            color: #fff !important;
            padding: 10px 24px !important;
            border-radius: var(--radius-sm) !important;
            font-weight: 600 !important;
            box-shadow: 0 4px 12px rgba(37,99,235,0.3);
            transition: all var(--transition);
        }
        .nav-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(37,99,235,0.35);
            background: linear-gradient(135deg, var(--primary-dark), #1e3a8a) !important;
            color: #fff !important;
        }
        .navbar-toggler {
            border: none;
            padding: 8px;
            border-radius: var(--radius-sm);
            color: var(--secondary);
        }
        .navbar-toggler:focus { box-shadow: 0 0 0 3px rgba(37,99,235,0.2); }
        .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='rgba(15,23,42,0.8)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2.5' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
            width: 24px; height: 24px;
        }

        /* ===== Hero 区块 ===== */
        .hero-section {
            min-height: 620px;
            background: linear-gradient(135deg, #0f172a 0%, #1e293b 50%, #0f172a 100%);
            position: relative;
            overflow: hidden;
            display: flex;
            align-items: center;
            padding: 80px 0 60px;
        }
        .hero-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            opacity: 0.2;
            mix-blend-mode: overlay;
        }
        .hero-section::after {
            content: '';
            position: absolute;
            top: -50%;
            right: -20%;
            width: 600px; height: 600px;
            background: radial-gradient(circle, rgba(37,99,235,0.15) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .hero-content { position: relative; z-index: 2; }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(37,99,235,0.15);
            backdrop-filter: blur(4px);
            border: 1px solid rgba(37,99,235,0.25);
            padding: 6px 16px;
            border-radius: 50px;
            font-size: 0.85rem;
            color: #93c5fd;
            margin-bottom: 20px;
        }
        .hero-badge i { color: var(--accent); font-size: 0.75rem; }
        .hero-title {
            font-size: 3.2rem;
            font-weight: 800;
            color: #ffffff;
            line-height: 1.15;
            letter-spacing: -0.02em;
            margin-bottom: 1rem;
        }
        .hero-title .highlight {
            background: linear-gradient(135deg, #60a5fa, #3b82f6);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .hero-desc {
            font-size: 1.15rem;
            color: rgba(255,255,255,0.7);
            max-width: 600px;
            margin-bottom: 2rem;
            line-height: 1.8;
        }
        .hero-actions { display: flex; flex-wrap: wrap; gap: 14px; }
        .hero-actions .btn {
            padding: 14px 36px;
            font-size: 1rem;
            font-weight: 600;
            border-radius: var(--radius-sm);
            transition: all var(--transition);
        }
        .btn-primary-custom {
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            border: none;
            color: #fff;
            box-shadow: 0 4px 16px rgba(37,99,235,0.35);
        }
        .btn-primary-custom:hover {
            transform: translateY(-3px);
            box-shadow: 0 10px 28px rgba(37,99,235,0.4);
            background: linear-gradient(135deg, var(--primary-dark), #1e3a8a);
            color: #fff;
        }
        .btn-outline-light-custom {
            background: transparent;
            border: 1.5px solid rgba(255,255,255,0.3);
            color: #fff;
        }
        .btn-outline-light-custom:hover {
            background: rgba(255,255,255,0.08);
            border-color: rgba(255,255,255,0.5);
            color: #fff;
            transform: translateY(-3px);
        }
        .hero-stats {
            display: flex;
            gap: 40px;
            margin-top: 3rem;
            padding-top: 2rem;
            border-top: 1px solid rgba(255,255,255,0.08);
        }
        .hero-stat-item { text-align: left; }
        .hero-stat-number {
            font-size: 1.75rem;
            font-weight: 800;
            color: #fff;
            line-height: 1.2;
        }
        .hero-stat-label {
            font-size: 0.85rem;
            color: rgba(255,255,255,0.5);
        }
        .hero-visual {
            position: relative;
            z-index: 2;
            display: flex;
            justify-content: center;
            align-items: center;
        }
        .hero-visual img {
            max-width: 100%;
            border-radius: var(--radius-lg);
            box-shadow: 0 20px 60px rgba(0,0,0,0.4);
            border: 1px solid rgba(255,255,255,0.06);
        }

        /* ===== 通用板块 ===== */
        .section-block {
            padding: 80px 0;
        }
        .section-block-alt {
            background: var(--primary-bg);
        }
        .section-block-dark {
            background: var(--secondary);
            color: rgba(255,255,255,0.8);
        }
        .section-block-dark h2,
        .section-block-dark h3,
        .section-block-dark .section-title { color: #fff; }
        .section-block-dark .section-subtitle { color: rgba(255,255,255,0.6); }

        /* ===== 卡片 ===== */
        .card-custom {
            background: var(--card-bg);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            box-shadow: var(--card-shadow);
            transition: all var(--transition);
            overflow: hidden;
            height: 100%;
        }
        .card-custom:hover {
            box-shadow: var(--card-shadow-hover);
            transform: translateY(-4px);
            border-color: transparent;
        }
        .card-custom .card-body { padding: 28px; }
        .card-custom .card-title { font-size: 1.15rem; font-weight: 700; margin-bottom: 10px; }
        .card-custom .card-text { color: var(--text-muted); font-size: 0.95rem; line-height: 1.7; }
        .card-icon {
            width: 52px; height: 52px;
            border-radius: var(--radius-sm);
            display: flex; align-items: center; justify-content: center;
            font-size: 1.4rem;
            margin-bottom: 16px;
            color: #fff;
        }
        .card-icon.blue { background: linear-gradient(135deg, #3b82f6, #2563eb); }
        .card-icon.green { background: linear-gradient(135deg, #34d399, #10b981); }
        .card-icon.amber { background: linear-gradient(135deg, #fbbf24, #f59e0b); }
        .card-icon.purple { background: linear-gradient(135deg, #a78bfa, #7c3aed); }
        .card-icon.rose { background: linear-gradient(135deg, #fb7185, #e11d48); }
        .card-icon.cyan { background: linear-gradient(135deg, #22d3ee, #0891b2); }

        /* ===== 分类卡片 ===== */
        .category-card {
            position: relative;
            border-radius: var(--radius-md);
            overflow: hidden;
            height: 260px;
            display: flex;
            align-items: flex-end;
            cursor: pointer;
            transition: all var(--transition);
            border: 1px solid var(--border-color);
        }
        .category-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--card-shadow-hover);
        }
        .category-card .cat-bg {
            position: absolute;
            inset: 0;
            background-size: cover;
            background-position: center;
            transition: transform 0.5s ease;
        }
        .category-card:hover .cat-bg { transform: scale(1.05); }
        .category-card .cat-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(0deg, rgba(15,23,42,0.85) 0%, rgba(15,23,42,0.2) 80%, transparent 100%);
        }
        .category-card .cat-body {
            position: relative;
            z-index: 2;
            padding: 28px 24px;
            width: 100%;
        }
        .category-card .cat-name {
            font-size: 1.25rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 4px;
        }
        .category-card .cat-count {
            font-size: 0.85rem;
            color: rgba(255,255,255,0.6);
        }

        /* ===== 资讯/文章卡片 ===== */
        .post-card {
            background: var(--card-bg);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all var(--transition);
            height: 100%;
        }
        .post-card:hover {
            box-shadow: var(--card-shadow-hover);
            transform: translateY(-4px);
            border-color: transparent;
        }
        .post-card .post-img {
            height: 200px;
            background-size: cover;
            background-position: center;
            position: relative;
        }
        .post-card .post-cat {
            position: absolute;
            top: 14px;
            left: 14px;
            background: rgba(37,99,235,0.9);
            backdrop-filter: blur(4px);
            padding: 4px 14px;
            border-radius: 50px;
            font-size: 0.75rem;
            color: #fff;
            font-weight: 600;
        }
        .post-card .post-body { padding: 22px 24px 24px; }
        .post-card .post-title {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 8px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .post-card .post-title a { color: var(--secondary); }
        .post-card .post-title a:hover { color: var(--primary); }
        .post-card .post-excerpt {
            color: var(--text-muted);
            font-size: 0.9rem;
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 12px;
        }
        .post-card .post-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            font-size: 0.82rem;
            color: var(--text-light);
        }
        .post-card .post-meta i { margin-right: 4px; }

        /* ===== 数据/统计 ===== */
        .stat-block {
            text-align: center;
            padding: 32px 20px;
            border-radius: var(--radius-md);
            background: rgba(255,255,255,0.04);
            border: 1px solid rgba(255,255,255,0.06);
            transition: all var(--transition);
        }
        .stat-block:hover {
            background: rgba(255,255,255,0.08);
            transform: translateY(-4px);
        }
        .stat-number {
            font-size: 2.8rem;
            font-weight: 800;
            color: #fff;
            line-height: 1.2;
            margin-bottom: 4px;
        }
        .stat-label {
            font-size: 0.95rem;
            color: rgba(255,255,255,0.6);
        }

        /* ===== 流程图/步骤 ===== */
        .step-item {
            text-align: center;
            padding: 32px 20px;
            position: relative;
        }
        .step-number {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            font-size: 1.4rem;
            font-weight: 700;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 16px;
            box-shadow: 0 4px 16px rgba(37,99,235,0.3);
        }
        .step-title {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 8px;
        }
        .step-desc {
            color: var(--text-muted);
            font-size: 0.92rem;
            line-height: 1.6;
        }
        .step-arrow {
            position: absolute;
            right: -20px;
            top: 44px;
            font-size: 1.4rem;
            color: var(--primary-light);
        }

        /* ===== FAQ ===== */
        .faq-item {
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            margin-bottom: 12px;
            overflow: hidden;
            transition: all var(--transition);
            background: var(--card-bg);
        }
        .faq-item:hover { border-color: var(--primary-light); }
        .faq-question {
            padding: 20px 24px;
            font-weight: 600;
            font-size: 1rem;
            color: var(--secondary);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            transition: all var(--transition);
            user-select: none;
        }
        .faq-question:hover { color: var(--primary); }
        .faq-question i { transition: transform var(--transition); color: var(--text-light); }
        .faq-item.open .faq-question i { transform: rotate(180deg); color: var(--primary); }
        .faq-answer {
            padding: 0 24px 20px;
            color: var(--text-muted);
            line-height: 1.8;
            font-size: 0.95rem;
            display: none;
        }
        .faq-item.open .faq-answer { display: block; }

        /* ===== CTA ===== */
        .cta-section {
            padding: 80px 0;
            background: linear-gradient(135deg, #0f172a 0%, #1e293b 50%, #0f172a 100%);
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            opacity: 0.1;
            mix-blend-mode: overlay;
        }
        .cta-content { position: relative; z-index: 2; text-align: center; }
        .cta-title {
            font-size: 2.2rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 1rem;
        }
        .cta-desc {
            color: rgba(255,255,255,0.6);
            max-width: 600px;
            margin: 0 auto 2rem;
            font-size: 1.05rem;
        }
        .cta-btn-group { display: flex; flex-wrap: wrap; justify-content: center; gap: 14px; }

        /* ===== 页脚 ===== */
        .footer {
            background: var(--secondary);
            color: rgba(255,255,255,0.7);
            padding: 60px 0 30px;
            border-top: 1px solid rgba(255,255,255,0.05);
        }
        .footer-brand {
            font-size: 1.4rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 8px;
        }
        .footer-desc {
            font-size: 0.9rem;
            color: rgba(255,255,255,0.5);
            max-width: 320px;
            line-height: 1.7;
        }
        .footer h5 {
            color: #fff;
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 16px;
        }
        .footer a {
            color: rgba(255,255,255,0.6);
            font-size: 0.9rem;
            transition: all var(--transition);
            display: inline-block;
            padding: 4px 0;
        }
        .footer a:hover { color: var(--primary-light); transform: translateX(4px); }
        .footer .social-links a {
            width: 40px; height: 40px;
            border-radius: 50%;
            background: rgba(255,255,255,0.06);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            margin-right: 8px;
            font-size: 1rem;
            color: rgba(255,255,255,0.6);
            transition: all var(--transition);
        }
        .footer .social-links a:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-3px);
        }
        .footer-divider {
            border-color: rgba(255,255,255,0.06);
            margin: 30px 0 20px;
        }
        .footer-copyright {
            font-size: 0.85rem;
            color: rgba(255,255,255,0.4);
            text-align: center;
        }

        /* ===== 标签/徽章 ===== */
        .badge-tag {
            display: inline-block;
            padding: 4px 14px;
            border-radius: 50px;
            font-size: 0.8rem;
            font-weight: 600;
            background: var(--primary-bg);
            color: var(--primary);
            border: 1px solid rgba(37,99,235,0.15);
            transition: all var(--transition);
        }
        .badge-tag:hover {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }
        .badge-status {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 3px 14px;
            border-radius: 50px;
            font-size: 0.78rem;
            font-weight: 600;
        }
        .badge-status.online { background: rgba(16,185,129,0.12); color: #059669; }
        .badge-status .dot {
            width: 6px; height: 6px;
            border-radius: 50%;
            display: inline-block;
        }
        .badge-status.online .dot { background: #10b981; animation: pulse-dot 2s infinite; }
        @keyframes pulse-dot {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.4; }
        }

        /* ===== 分隔线 ===== */
        .divider-custom {
            width: 50px;
            height: 4px;
            background: linear-gradient(90deg, var(--primary), var(--primary-light));
            border-radius: 4px;
            margin: 12px 0 20px;
        }
        .divider-center { margin-left: auto; margin-right: auto; }

        /* ===== 空状态 ===== */
        .empty-state {
            text-align: center;
            padding: 48px 20px;
            color: var(--text-muted);
        }
        .empty-state i { font-size: 3rem; color: var(--text-light); margin-bottom: 16px; display: block; }
        .empty-state p { font-size: 1rem; }

        /* ===== 响应式 ===== */
        @media (max-width: 992px) {
            :root { --header-height: 64px; }
            h1 { font-size: 2.2rem; }
            h2 { font-size: 1.7rem; }
            .hero-title { font-size: 2.4rem; }
            .hero-section { min-height: auto; padding: 60px 0 40px; }
            .hero-stats { gap: 24px; flex-wrap: wrap; }
            .step-arrow { display: none; }
            .navbar-nav { padding: 12px 0; }
            .navbar-nav .nav-link { padding: 10px 16px; }
            .navbar-nav .nav-link.active::after { display: none; }
            .stat-number { font-size: 2.2rem; }
            .cta-title { font-size: 1.8rem; }
        }
        @media (max-width: 768px) {
            .section-block { padding: 50px 0; }
            .hero-title { font-size: 1.9rem; }
            .hero-desc { font-size: 1rem; }
            .hero-actions .btn { padding: 12px 28px; font-size: 0.95rem; }
            .hero-stats { flex-direction: column; gap: 16px; }
            .hero-stat-number { font-size: 1.4rem; }
            .card-custom .card-body { padding: 22px; }
            .category-card { height: 200px; }
            .post-card .post-img { height: 180px; }
            .faq-question { padding: 16px 18px; font-size: 0.95rem; }
            .faq-answer { padding: 0 18px 16px; }
            .cta-title { font-size: 1.5rem; }
            .footer { padding: 40px 0 20px; }
            .navbar-brand { font-size: 1.25rem; }
            .navbar-brand .brand-icon { width: 32px; height: 32px; font-size: 0.95rem; }
        }
        @media (max-width: 520px) {
            .container { padding-left: 16px; padding-right: 16px; }
            h1 { font-size: 1.6rem; }
            .hero-title { font-size: 1.6rem; }
            .hero-section { padding: 40px 0 30px; }
            .hero-badge { font-size: 0.75rem; padding: 4px 12px; }
            .hero-actions { flex-direction: column; }
            .hero-actions .btn { width: 100%; text-align: center; }
            .category-card { height: 170px; }
            .category-card .cat-body { padding: 18px 16px; }
            .category-card .cat-name { font-size: 1.05rem; }
            .post-card .post-body { padding: 16px 18px; }
            .stat-number { font-size: 1.8rem; }
            .step-item { padding: 20px 12px; }
            .cta-btn-group { flex-direction: column; align-items: center; }
            .cta-btn-group .btn { width: 100%; max-width: 320px; }
            .footer .social-links a { margin-bottom: 8px; }
        }

        /* ===== 辅助 ===== */
        .gap-sm { gap: 8px; }
        .gap-md { gap: 16px; }
        .gap-lg { gap: 24px; }
        .mt-section { margin-top: 80px; }
        @media (max-width: 768px) { .mt-section { margin-top: 50px; } }
        .text-gradient {
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .bg-grid {
            background-image: 
                linear-gradient(rgba(37,99,235,0.04) 1px, transparent 1px),
                linear-gradient(90deg, rgba(37,99,235,0.04) 1px, transparent 1px);
            background-size: 30px 30px;
        }
        .focus-ring:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
            border-radius: 4px;
        }
        .btn:focus-visible { box-shadow: 0 0 0 3px rgba(37,99,235,0.3); }
        a:focus-visible, button:focus-visible { outline: 2px solid var(--primary); outline-offset: 2px; }

/* roulang page: article */
:root {
            --primary: #6c3ef0;
            --primary-dark: #5228c7;
            --primary-light: #8b6cf7;
            --primary-gradient: linear-gradient(135deg, #6c3ef0 0%, #3b1f94 100%);
            --secondary: #f0a63e;
            --secondary-light: #f5c542;
            --bg-dark: #0b0821;
            --bg-card: #13102e;
            --bg-section: #0f0c28;
            --text-primary: #f0edff;
            --text-secondary: #b8b0d9;
            --text-muted: #7a72a0;
            --border-color: rgba(108, 62, 240, 0.25);
            --border-glow: rgba(108, 62, 240, 0.4);
            --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.4);
            --shadow-hover: 0 16px 48px rgba(108, 62, 240, 0.25);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
            --font-base: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-base);
            background: var(--bg-dark);
            color: var(--text-primary);
            line-height: 1.7;
            margin: 0;
            padding: 0;
            -webkit-font-smoothing: antialiased;
        }

        a {
            color: var(--primary-light);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: #fff;
        }
        a:focus-visible {
            outline: 2px solid var(--primary-light);
            outline-offset: 2px;
        }

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

        .container {
            max-width: 1200px;
            padding-left: 24px;
            padding-right: 24px;
            margin: 0 auto;
        }

        /* ===== 导航 ===== */
        #mainNav {
            background: rgba(11, 8, 33, 0.92);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--border-color);
            padding: 0;
            min-height: 72px;
            transition: var(--transition);
        }
        #mainNav .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: 72px;
        }
        .navbar-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.35rem;
            font-weight: 700;
            color: #fff !important;
            letter-spacing: -0.3px;
        }
        .navbar-brand .brand-icon {
            display: inline-flex;
            width: 38px;
            height: 38px;
            background: var(--primary-gradient);
            border-radius: 10px;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 0.95rem;
            font-weight: 800;
            letter-spacing: 0;
        }
        .navbar-nav .nav-link {
            color: var(--text-secondary) !important;
            font-weight: 500;
            font-size: 0.95rem;
            padding: 8px 18px !important;
            border-radius: var(--radius-sm);
            transition: var(--transition);
            position: relative;
        }
        .navbar-nav .nav-link:hover,
        .navbar-nav .nav-link:focus {
            color: #fff !important;
            background: rgba(108, 62, 240, 0.15);
        }
        .navbar-nav .nav-link.active {
            color: #fff !important;
            background: rgba(108, 62, 240, 0.2);
        }
        .navbar-nav .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 4px;
            left: 18px;
            right: 18px;
            height: 2px;
            background: var(--primary-light);
            border-radius: 2px;
        }
        .nav-cta {
            background: var(--primary-gradient) !important;
            color: #fff !important;
            padding: 10px 24px !important;
            border-radius: 30px !important;
            font-weight: 600 !important;
            box-shadow: 0 4px 20px rgba(108, 62, 240, 0.35);
            border: none !important;
        }
        .nav-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 30px rgba(108, 62, 240, 0.5) !important;
            background: var(--primary-gradient) !important;
        }
        .navbar-toggler {
            border: 1px solid rgba(255, 255, 255, 0.2);
            padding: 8px 10px;
            border-radius: 8px;
            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(255,255,255,0.7)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
            width: 26px;
            height: 26px;
        }
        .navbar-toggler:focus {
            box-shadow: 0 0 0 3px rgba(108, 62, 240, 0.4);
        }

        /* ===== 文章页专用 ===== */
        .article-banner {
            background: var(--bg-section);
            padding: 140px 0 60px;
            position: relative;
            border-bottom: 1px solid var(--border-color);
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            background-attachment: fixed;
        }
        .article-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(11, 8, 33, 0.85) 0%, rgba(11, 8, 33, 0.95) 100%);
            z-index: 0;
        }
        .article-banner .container {
            position: relative;
            z-index: 1;
        }
        .article-banner .category-badge {
            display: inline-block;
            background: var(--primary-gradient);
            color: #fff;
            font-size: 0.8rem;
            font-weight: 600;
            padding: 4px 16px;
            border-radius: 30px;
            margin-bottom: 16px;
            letter-spacing: 0.5px;
        }
        .article-banner h1 {
            font-size: 2.4rem;
            font-weight: 800;
            line-height: 1.25;
            color: #fff;
            margin-bottom: 16px;
            max-width: 800px;
            letter-spacing: -0.5px;
        }
        .article-banner .meta {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            color: var(--text-secondary);
            font-size: 0.9rem;
        }
        .article-banner .meta i {
            margin-right: 6px;
            color: var(--primary-light);
        }

        .article-main {
            padding: 60px 0 80px;
            background: var(--bg-dark);
        }
        .article-content {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 48px;
            box-shadow: var(--shadow-card);
        }
        .article-content p {
            color: var(--text-secondary);
            font-size: 1.05rem;
            line-height: 1.9;
            margin-bottom: 1.5rem;
        }
        .article-content h2,
        .article-content h3,
        .article-content h4 {
            color: #fff;
            font-weight: 700;
            margin-top: 2rem;
            margin-bottom: 1rem;
            letter-spacing: -0.3px;
        }
        .article-content h2 {
            font-size: 1.7rem;
            border-bottom: 1px solid var(--border-color);
            padding-bottom: 12px;
        }
        .article-content h3 {
            font-size: 1.35rem;
        }
        .article-content ul,
        .article-content ol {
            color: var(--text-secondary);
            font-size: 1.05rem;
            line-height: 1.9;
            padding-left: 24px;
            margin-bottom: 1.5rem;
        }
        .article-content li {
            margin-bottom: 6px;
        }
        .article-content a {
            color: var(--primary-light);
            text-decoration: underline;
            text-underline-offset: 3px;
        }
        .article-content a:hover {
            color: #fff;
        }
        .article-content blockquote {
            border-left: 4px solid var(--primary);
            padding: 16px 24px;
            margin: 24px 0;
            background: rgba(108, 62, 240, 0.08);
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            color: var(--text-secondary);
            font-style: italic;
        }
        .article-content img {
            margin: 24px 0;
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-card);
        }
        .article-content .tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 32px;
            padding-top: 24px;
            border-top: 1px solid var(--border-color);
        }
        .article-content .tags .tag {
            background: rgba(108, 62, 240, 0.15);
            color: var(--primary-light);
            font-size: 0.85rem;
            padding: 4px 16px;
            border-radius: 30px;
            border: 1px solid rgba(108, 62, 240, 0.2);
        }
        .article-content .tags .tag:hover {
            background: rgba(108, 62, 240, 0.25);
        }

        .article-sidebar .widget {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 28px;
            margin-bottom: 24px;
            box-shadow: var(--shadow-card);
        }
        .article-sidebar .widget h5 {
            color: #fff;
            font-weight: 700;
            font-size: 1.1rem;
            margin-bottom: 16px;
            padding-bottom: 12px;
            border-bottom: 1px solid var(--border-color);
        }
        .article-sidebar .widget ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .article-sidebar .widget ul li {
            padding: 8px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.05);
        }
        .article-sidebar .widget ul li:last-child {
            border-bottom: none;
        }
        .article-sidebar .widget ul li a {
            color: var(--text-secondary);
            font-size: 0.95rem;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .article-sidebar .widget ul li a:hover {
            color: var(--primary-light);
        }
        .article-sidebar .widget ul li a i {
            width: 18px;
            color: var(--primary-light);
            font-size: 0.8rem;
        }

        /* ===== 未找到 ===== */
        .not-found-box {
            text-align: center;
            padding: 80px 24px;
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-card);
        }
        .not-found-box i {
            font-size: 4rem;
            color: var(--primary-light);
            margin-bottom: 24px;
            opacity: 0.6;
        }
        .not-found-box h2 {
            font-size: 2rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
        }
        .not-found-box p {
            color: var(--text-secondary);
            font-size: 1.1rem;
            max-width: 480px;
            margin: 0 auto 28px;
        }

        /* ===== 页脚 ===== */
        .footer {
            background: var(--bg-card);
            border-top: 1px solid var(--border-color);
            padding: 60px 0 30px;
        }
        .footer .footer-brand {
            font-size: 1.3rem;
            font-weight: 700;
            color: #fff;
            display: flex;
            align-items: center;
            gap: 8px;
            margin-bottom: 16px;
        }
        .footer .footer-desc {
            color: var(--text-muted);
            font-size: 0.92rem;
            max-width: 360px;
            line-height: 1.7;
        }
        .footer .social-links {
            display: flex;
            gap: 14px;
        }
        .footer .social-links a {
            display: inline-flex;
            width: 40px;
            height: 40px;
            background: rgba(255, 255, 255, 0.06);
            border-radius: 50%;
            align-items: center;
            justify-content: center;
            color: var(--text-secondary);
            font-size: 1.1rem;
            transition: var(--transition);
            border: 1px solid transparent;
        }
        .footer .social-links a:hover {
            background: var(--primary-gradient);
            color: #fff;
            border-color: var(--primary-light);
            transform: translateY(-3px);
            box-shadow: 0 8px 24px rgba(108, 62, 240, 0.3);
        }
        .footer h5 {
            color: #fff;
            font-weight: 600;
            font-size: 1rem;
            margin-bottom: 18px;
            letter-spacing: 0.3px;
        }
        .footer a {
            color: var(--text-muted);
            font-size: 0.92rem;
            display: inline-block;
            padding: 4px 0;
            transition: var(--transition);
        }
        .footer a:hover {
            color: var(--primary-light);
            transform: translateX(4px);
        }
        .footer-divider {
            border-color: rgba(255, 255, 255, 0.06);
            margin: 36px 0 24px;
        }
        .footer-copyright {
            color: var(--text-muted);
            font-size: 0.85rem;
            text-align: center;
            margin: 0;
            letter-spacing: 0.3px;
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .article-banner h1 {
                font-size: 2rem;
            }
            .article-content {
                padding: 32px;
            }
        }

        @media (max-width: 768px) {
            #mainNav {
                min-height: 64px;
            }
            #mainNav .container {
                min-height: 64px;
            }
            .navbar-brand {
                font-size: 1.15rem;
            }
            .navbar-nav .nav-link {
                padding: 10px 16px !important;
                text-align: center;
            }
            .navbar-nav .nav-link.active::after {
                display: none;
            }
            .nav-cta {
                margin-top: 8px;
                text-align: center;
            }
            .article-banner {
                padding: 120px 0 40px;
            }
            .article-banner h1 {
                font-size: 1.6rem;
            }
            .article-banner .meta {
                font-size: 0.85rem;
                gap: 12px;
            }
            .article-main {
                padding: 40px 0 60px;
            }
            .article-content {
                padding: 24px 20px;
                border-radius: var(--radius-md);
            }
            .article-content p {
                font-size: 0.98rem;
            }
            .article-content h2 {
                font-size: 1.4rem;
            }
            .article-content h3 {
                font-size: 1.15rem;
            }
            .article-sidebar .widget {
                padding: 20px;
            }
            .footer {
                padding: 40px 0 24px;
            }
            .footer .footer-brand {
                font-size: 1.15rem;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
            .article-banner h1 {
                font-size: 1.35rem;
            }
            .article-content {
                padding: 18px 14px;
            }
            .article-content p {
                font-size: 0.92rem;
            }
            .article-content h2 {
                font-size: 1.2rem;
            }
            .not-found-box {
                padding: 40px 16px;
            }
            .not-found-box i {
                font-size: 3rem;
            }
            .not-found-box h2 {
                font-size: 1.5rem;
            }
            .footer .social-links a {
                width: 36px;
                height: 36px;
                font-size: 1rem;
            }
        }

/* roulang page: category1 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #4f46e5;
            --primary-dark: #3730a3;
            --primary-light: #818cf8;
            --primary-bg: rgba(79, 70, 229, 0.08);
            --accent: #f59e0b;
            --accent-dark: #d97706;
            --success: #10b981;
            --bg: #0f0f1a;
            --bg-alt: #1a1a2e;
            --bg-card: #1e1e36;
            --bg-elevated: #252545;
            --text: #f1f5f9;
            --text-secondary: #94a3b8;
            --text-muted: #64748b;
            --border: rgba(255, 255, 255, 0.08);
            --border-light: rgba(255, 255, 255, 0.12);
            --radius: 16px;
            --radius-sm: 10px;
            --radius-lg: 24px;
            --shadow: 0 8px 32px rgba(0, 0, 0, 0.5);
            --shadow-sm: 0 4px 16px rgba(0, 0, 0, 0.3);
            --shadow-lg: 0 16px 64px rgba(0, 0, 0, 0.6);
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
            --container-max: 1200px;
        }

        /* ===== 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);
            background: var(--bg);
            color: var(--text);
            line-height: 1.7;
            font-size: 1rem;
            padding-top: 76px;
            overflow-x: hidden;
        }

        a {
            color: var(--primary-light);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: #a5b4fc;
        }
        a:focus-visible {
            outline: 2px solid var(--primary-light);
            outline-offset: 4px;
            border-radius: 4px;
        }

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

        button,
        input,
        textarea,
        select {
            font-family: inherit;
            font-size: inherit;
        }

        /* 容器 */
        .container {
            max-width: var(--container-max);
            padding-left: 20px;
            padding-right: 20px;
        }

        /* ===== 导航 ===== */
        #mainNav {
            background: rgba(15, 15, 26, 0.92);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border);
            padding: 0;
            transition: var(--transition);
            min-height: 76px;
        }
        #mainNav .container {
            display: flex;
            align-items: center;
            min-height: 76px;
        }
        .navbar-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 700;
            font-size: 1.35rem;
            color: var(--text) !important;
            letter-spacing: -0.5px;
            padding: 0;
        }
        .navbar-brand .brand-icon {
            display: inline-flex;
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            border-radius: 10px;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1.1rem;
            font-weight: 800;
            letter-spacing: 0;
        }
        .navbar-nav .nav-link {
            color: var(--text-secondary) !important;
            font-weight: 500;
            font-size: 0.95rem;
            padding: 8px 18px !important;
            border-radius: var(--radius-sm);
            transition: var(--transition);
            position: relative;
        }
        .navbar-nav .nav-link:hover {
            color: var(--text) !important;
            background: rgba(255, 255, 255, 0.05);
        }
        .navbar-nav .nav-link.active {
            color: #fff !important;
            background: rgba(79, 70, 229, 0.2);
        }
        .navbar-nav .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: var(--primary-light);
            border-radius: 4px;
        }
        .navbar-nav .nav-cta {
            background: linear-gradient(135deg, var(--primary), var(--primary-dark)) !important;
            color: #fff !important;
            padding: 10px 24px !important;
            border-radius: var(--radius-sm) !important;
            font-weight: 600;
            box-shadow: 0 4px 20px rgba(79, 70, 229, 0.35);
            transition: var(--transition);
        }
        .navbar-nav .nav-cta:hover {
            transform: translateY(-2px) scale(1.02);
            box-shadow: 0 8px 30px rgba(79, 70, 229, 0.5);
            background: linear-gradient(135deg, var(--primary-light), var(--primary)) !important;
        }
        .navbar-toggler {
            border: 1px solid var(--border-light);
            padding: 6px 10px;
            border-radius: var(--radius-sm);
            background: transparent;
        }
        .navbar-toggler:focus {
            box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.4);
        }
        .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(255,255,255,0.7)' stroke-width='2' stroke-linecap='round' d='M4 7h22M4 15h22M4 23h22'/%3E%3C/svg%3E");
        }

        /* ===== 页面横幅 ===== */
        .page-banner {
            background: linear-gradient(135deg, #1a1a2e 0%, #0f0f1a 50%, #1a1a2e 100%);
            padding: 80px 0 60px;
            position: relative;
            overflow: hidden;
            border-bottom: 1px solid var(--border);
        }
        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            opacity: 0.08;
            z-index: 0;
        }
        .page-banner .container {
            position: relative;
            z-index: 1;
        }
        .page-banner .breadcrumb {
            background: transparent;
            padding: 0;
            margin-bottom: 16px;
        }
        .page-banner .breadcrumb-item {
            color: var(--text-muted);
            font-size: 0.9rem;
        }
        .page-banner .breadcrumb-item a {
            color: var(--text-muted);
        }
        .page-banner .breadcrumb-item a:hover {
            color: var(--primary-light);
        }
        .page-banner .breadcrumb-item+.breadcrumb-item::before {
            color: var(--text-muted);
        }
        .page-banner h1 {
            font-size: 2.8rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 16px;
            letter-spacing: -1px;
            line-height: 1.2;
        }
        .page-banner h1 .highlight {
            background: linear-gradient(135deg, var(--primary-light), #a78bfa);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .page-banner .banner-desc {
            font-size: 1.15rem;
            color: var(--text-secondary);
            max-width: 650px;
            line-height: 1.7;
        }
        .page-banner .banner-stats {
            display: flex;
            flex-wrap: wrap;
            gap: 30px;
            margin-top: 28px;
        }
        .page-banner .banner-stats .stat-item {
            text-align: center;
        }
        .page-banner .banner-stats .stat-number {
            font-size: 2rem;
            font-weight: 700;
            color: #fff;
            line-height: 1.2;
        }
        .page-banner .banner-stats .stat-label {
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        /* ===== 板块通用 ===== */
        .section {
            padding: 80px 0;
        }
        .section-alt {
            background: var(--bg-alt);
        }
        .section-title {
            font-size: 2.2rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
            letter-spacing: -0.5px;
        }
        .section-subtitle {
            font-size: 1.05rem;
            color: var(--text-secondary);
            max-width: 580px;
            margin-bottom: 48px;
        }
        .section-header {
            text-align: center;
            margin-bottom: 48px;
        }
        .section-header .section-subtitle {
            margin-left: auto;
            margin-right: auto;
        }

        /* ===== 卡片 ===== */
        .card-custom {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 32px 28px;
            transition: var(--transition);
            height: 100%;
        }
        .card-custom:hover {
            border-color: var(--primary);
            transform: translateY(-6px);
            box-shadow: var(--shadow);
        }
        .card-custom .card-icon {
            width: 56px;
            height: 56px;
            background: var(--primary-bg);
            border-radius: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.6rem;
            color: var(--primary-light);
            margin-bottom: 20px;
            transition: var(--transition);
        }
        .card-custom:hover .card-icon {
            background: rgba(79, 70, 229, 0.2);
            transform: scale(1.05);
        }
        .card-custom h4 {
            font-size: 1.2rem;
            font-weight: 600;
            color: #fff;
            margin-bottom: 10px;
        }
        .card-custom p {
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.7;
            margin-bottom: 0;
        }
        .card-custom .badge-custom {
            display: inline-block;
            background: rgba(79, 70, 229, 0.15);
            color: var(--primary-light);
            font-size: 0.75rem;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 20px;
            margin-bottom: 14px;
        }

        /* ===== 步骤流程 ===== */
        .step-list {
            display: flex;
            flex-wrap: wrap;
            gap: 24px;
            counter-reset: step;
        }
        .step-item {
            flex: 1 1 180px;
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 28px 20px;
            text-align: center;
            position: relative;
            transition: var(--transition);
            counter-increment: step;
        }
        .step-item:hover {
            border-color: var(--primary);
            transform: translateY(-4px);
            box-shadow: var(--shadow-sm);
        }
        .step-item .step-number {
            width: 44px;
            height: 44px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 16px;
            font-size: 1.2rem;
            font-weight: 700;
            color: #fff;
        }
        .step-item h5 {
            font-size: 1.05rem;
            font-weight: 600;
            color: #fff;
            margin-bottom: 8px;
        }
        .step-item p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            margin-bottom: 0;
        }
        .step-item .step-arrow {
            position: absolute;
            top: 50%;
            right: -16px;
            transform: translateY(-50%);
            font-size: 1.2rem;
            color: var(--text-muted);
        }
        @media (max-width: 768px) {
            .step-item .step-arrow {
                display: none;
            }
        }

        /* ===== 特点列表 ===== */
        .feature-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 24px;
        }
        .feature-item {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 24px 20px;
            display: flex;
            gap: 16px;
            align-items: flex-start;
            transition: var(--transition);
        }
        .feature-item:hover {
            border-color: var(--primary-light);
            transform: translateX(4px);
            box-shadow: var(--shadow-sm);
        }
        .feature-item .fi-icon {
            flex-shrink: 0;
            width: 44px;
            height: 44px;
            background: var(--primary-bg);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            color: var(--primary-light);
        }
        .feature-item h5 {
            font-size: 1rem;
            font-weight: 600;
            color: #fff;
            margin-bottom: 4px;
        }
        .feature-item p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            margin-bottom: 0;
        }

        /* ===== FAQ ===== */
        .faq-accordion .accordion-item {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-sm) !important;
            margin-bottom: 12px;
            overflow: hidden;
        }
        .faq-accordion .accordion-button {
            background: transparent;
            color: var(--text);
            font-weight: 600;
            font-size: 1rem;
            padding: 20px 24px;
            border: none;
            box-shadow: none;
        }
        .faq-accordion .accordion-button:not(.collapsed) {
            background: rgba(79, 70, 229, 0.08);
            color: var(--primary-light);
        }
        .faq-accordion .accordion-button:focus {
            box-shadow: none;
            border-color: var(--primary);
        }
        .faq-accordion .accordion-button::after {
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='rgba(255,255,255,0.6)'%3E%3Cpath d='M8 2a.75.75 0 0 1 .75.75v4.5h4.5a.75.75 0 0 1 0 1.5h-4.5v4.5a.75.75 0 0 1-1.5 0v-4.5h-4.5a.75.75 0 0 1 0-1.5h4.5v-4.5A.75.75 0 0 1 8 2z'/%3E%3C/svg%3E");
            background-size: 1rem;
            transition: var(--transition);
        }
        .faq-accordion .accordion-button:not(.collapsed)::after {
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='rgba(129,140,248,0.8)'%3E%3Cpath d='M2 8a.75.75 0 0 1 .75-.75h10.5a.75.75 0 0 1 0 1.5H2.75A.75.75 0 0 1 2 8z'/%3E%3C/svg%3E");
        }
        .faq-accordion .accordion-body {
            padding: 0 24px 20px;
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.7;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--primary-dark), #1e1b4b);
            padding: 80px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            opacity: 0.06;
            z-index: 0;
        }
        .cta-section .container {
            position: relative;
            z-index: 1;
        }
        .cta-section h2 {
            font-size: 2.4rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
        }
        .cta-section p {
            color: rgba(255, 255, 255, 0.7);
            font-size: 1.1rem;
            max-width: 600px;
            margin: 0 auto 32px;
        }
        .cta-section .btn-cta {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: #fff;
            color: var(--primary-dark) !important;
            font-weight: 600;
            font-size: 1.05rem;
            padding: 16px 40px;
            border-radius: var(--radius-sm);
            transition: var(--transition);
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
            border: none;
            cursor: pointer;
        }
        .cta-section .btn-cta:hover {
            transform: translateY(-3px) scale(1.02);
            box-shadow: 0 12px 48px rgba(0, 0, 0, 0.4);
            background: #f1f5f9;
        }

        /* ===== 标签与徽章 ===== */
        .tag-group {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-bottom: 20px;
        }
        .tag {
            display: inline-block;
            background: var(--primary-bg);
            color: var(--primary-light);
            font-size: 0.8rem;
            font-weight: 500;
            padding: 4px 14px;
            border-radius: 20px;
            border: 1px solid rgba(79, 70, 229, 0.2);
            transition: var(--transition);
        }
        .tag:hover {
            background: rgba(79, 70, 229, 0.2);
            border-color: var(--primary);
        }

        .badge-status {
            display: inline-block;
            background: rgba(16, 185, 129, 0.15);
            color: var(--success);
            font-size: 0.75rem;
            font-weight: 600;
            padding: 3px 12px;
            border-radius: 20px;
            letter-spacing: 0.3px;
        }
        .badge-status.warning {
            background: rgba(245, 158, 11, 0.15);
            color: var(--accent);
        }

        /* ===== 图文区块 ===== */
        .media-block {
            display: flex;
            flex-wrap: wrap;
            gap: 40px;
            align-items: center;
        }
        .media-block .media-image {
            flex: 1 1 400px;
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
        }
        .media-block .media-image img {
            width: 100%;
            height: auto;
            display: block;
            transition: var(--transition);
        }
        .media-block .media-image:hover img {
            transform: scale(1.02);
        }
        .media-block .media-content {
            flex: 1 1 400px;
        }
        .media-block .media-content h3 {
            font-size: 1.8rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
        }
        .media-block .media-content p {
            font-size: 1rem;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 16px;
        }
        .media-block .media-content .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            border: 1px solid var(--primary-light);
            color: var(--primary-light);
            padding: 10px 24px;
            border-radius: var(--radius-sm);
            font-weight: 500;
            transition: var(--transition);
        }
        .media-block .media-content .btn-outline:hover {
            background: rgba(79, 70, 229, 0.15);
            border-color: #a5b4fc;
            color: #a5b4fc;
        }

        /* ===== 安全提示 ===== */
        .safety-tip {
            background: rgba(245, 158, 11, 0.08);
            border-left: 4px solid var(--accent);
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            padding: 20px 24px;
            margin-top: 24px;
        }
        .safety-tip h6 {
            color: var(--accent);
            font-weight: 600;
            margin-bottom: 6px;
        }
        .safety-tip p {
            color: var(--text-secondary);
            font-size: 0.9rem;
            margin-bottom: 0;
        }

        /* ===== 页脚 ===== */
        .footer {
            background: #0a0a14;
            border-top: 1px solid var(--border);
            padding: 60px 0 30px;
        }
        .footer .footer-brand {
            font-size: 1.3rem;
            font-weight: 700;
            color: #fff;
            display: flex;
            align-items: center;
            gap: 8px;
            margin-bottom: 16px;
        }
        .footer .footer-desc {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.7;
            max-width: 360px;
        }
        .footer .social-links a {
            display: inline-flex;
            width: 40px;
            height: 40px;
            background: rgba(255, 255, 255, 0.06);
            border-radius: 10px;
            align-items: center;
            justify-content: center;
            color: var(--text-secondary);
            font-size: 1.1rem;
            margin-right: 8px;
            transition: var(--transition);
        }
        .footer .social-links a:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-2px);
        }
        .footer h5 {
            font-size: 1rem;
            font-weight: 600;
            color: #fff;
            margin-bottom: 16px;
        }
        .footer a {
            color: var(--text-muted);
            font-size: 0.9rem;
            line-height: 2.2;
            transition: var(--transition);
        }
        .footer a:hover {
            color: var(--primary-light);
            padding-left: 4px;
        }
        .footer .footer-divider {
            border-color: var(--border);
            margin: 32px 0 20px;
        }
        .footer .footer-copyright {
            text-align: center;
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-bottom: 0;
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .page-banner h1 {
                font-size: 2.2rem;
            }
            .section-title {
                font-size: 1.8rem;
            }
            .step-list {
                gap: 16px;
            }
        }

        @media (max-width: 768px) {
            body {
                padding-top: 66px;
            }
            #mainNav {
                min-height: 66px;
            }
            #mainNav .container {
                min-height: 66px;
            }
            .navbar-brand {
                font-size: 1.15rem;
            }
            .navbar-brand .brand-icon {
                width: 32px;
                height: 32px;
                font-size: 0.95rem;
            }
            .navbar-nav .nav-link {
                padding: 10px 16px !important;
                border-radius: 0;
                border-bottom: 1px solid var(--border);
            }
            .navbar-nav .nav-link.active::after {
                display: none;
            }
            .navbar-nav .nav-cta {
                margin-top: 8px;
                border-radius: var(--radius-sm) !important;
                text-align: center;
            }

            .page-banner {
                padding: 60px 0 40px;
            }
            .page-banner h1 {
                font-size: 1.8rem;
            }
            .page-banner .banner-desc {
                font-size: 1rem;
            }
            .page-banner .banner-stats {
                gap: 20px;
            }
            .page-banner .banner-stats .stat-number {
                font-size: 1.6rem;
            }

            .section {
                padding: 56px 0;
            }
            .section-title {
                font-size: 1.5rem;
            }
            .section-subtitle {
                font-size: 0.95rem;
                margin-bottom: 32px;
            }

            .card-custom {
                padding: 24px 20px;
            }

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

            .media-block {
                flex-direction: column;
                gap: 24px;
            }
            .media-block .media-content h3 {
                font-size: 1.4rem;
            }

            .cta-section h2 {
                font-size: 1.6rem;
            }
            .cta-section .btn-cta {
                padding: 14px 28px;
                font-size: 0.95rem;
            }

            .footer {
                padding: 40px 0 20px;
            }
            .footer .footer-brand {
                font-size: 1.1rem;
            }
        }

        @media (max-width: 520px) {
            .page-banner h1 {
                font-size: 1.5rem;
            }
            .page-banner .banner-stats {
                flex-direction: column;
                gap: 12px;
            }
            .page-banner .banner-stats .stat-item {
                text-align: left;
                display: flex;
                gap: 10px;
                align-items: baseline;
            }
            .step-item {
                flex: 1 1 100%;
            }
            .section-title {
                font-size: 1.3rem;
            }
            .cta-section h2 {
                font-size: 1.3rem;
            }
            .cta-section p {
                font-size: 0.95rem;
            }
        }

        /* 工具类 */
        .text-primary-light {
            color: var(--primary-light) !important;
        }
        .text-muted-custom {
            color: var(--text-muted) !important;
        }
        .bg-card-custom {
            background: var(--bg-card) !important;
        }
        .border-custom {
            border-color: var(--border) !important;
        }
        .gap-2 {
            gap: 8px;
        }
        .gap-3 {
            gap: 16px;
        }
        .mb-0 {
            margin-bottom: 0 !important;
        }
        .mt-2 {
            margin-top: 8px;
        }

/* roulang page: category2 */
:root {
            --primary: #6c5ce7;
            --primary-dark: #4a3db8;
            --primary-light: #a29bfe;
            --secondary: #fd79a8;
            --accent: #00cec9;
            --bg-dark: #0a0a1a;
            --bg-card: #12122a;
            --bg-section: #0f0f24;
            --text-light: #f0f0ff;
            --text-muted: #9a9abf;
            --border-color: #2a2a4a;
            --radius: 16px;
            --radius-sm: 10px;
            --shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
            --shadow-hover: 0 16px 48px rgba(108, 92, 231, 0.25);
            --transition: all 0.35s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            --font-sans: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            margin: 0;
            padding: 0;
            font-family: var(--font-sans);
            background: var(--bg-dark);
            color: var(--text-light);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            padding-top: 76px;
        }

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

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

        .container {
            max-width: 1200px;
            padding: 0 20px;
        }

        /* 导航 */
        #mainNav {
            background: rgba(10, 10, 26, 0.92);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(108, 92, 231, 0.15);
            box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
            transition: var(--transition);
            padding-top: 0;
            padding-bottom: 0;
            min-height: 76px;
        }

        #mainNav .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: 76px;
        }

        #mainNav .navbar-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--text-light);
            letter-spacing: -0.5px;
            padding: 8px 0;
        }
        #mainNav .navbar-brand:hover {
            color: var(--primary-light);
        }
        #mainNav .brand-icon {
            display: inline-flex;
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            border-radius: 10px;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1.1rem;
            font-weight: 800;
            box-shadow: 0 4px 12px rgba(108, 92, 231, 0.35);
        }

        #mainNav .navbar-nav .nav-link {
            color: rgba(240, 240, 255, 0.7);
            font-size: 0.95rem;
            font-weight: 500;
            padding: 8px 18px;
            border-radius: 8px;
            transition: var(--transition);
            position: relative;
        }
        #mainNav .navbar-nav .nav-link:hover,
        #mainNav .navbar-nav .nav-link:focus {
            color: var(--text-light);
            background: rgba(108, 92, 231, 0.12);
        }
        #mainNav .navbar-nav .nav-link.active {
            color: var(--primary-light);
            background: rgba(108, 92, 231, 0.18);
        }
        #mainNav .navbar-nav .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 18px;
            right: 18px;
            height: 3px;
            background: linear-gradient(90deg, var(--primary), var(--secondary));
            border-radius: 3px 3px 0 0;
        }

        #mainNav .nav-cta {
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff !important;
            padding: 10px 24px !important;
            border-radius: 30px !important;
            font-weight: 600;
            box-shadow: 0 4px 16px rgba(108, 92, 231, 0.3);
            border: none;
        }
        #mainNav .nav-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(108, 92, 231, 0.45);
            background: linear-gradient(135deg, var(--primary-dark), var(--primary));
        }
        #mainNav .nav-cta::after {
            display: none !important;
        }

        .navbar-toggler {
            border: 1px solid rgba(240, 240, 255, 0.2);
            padding: 6px 12px;
            border-radius: 8px;
            color: var(--text-light);
            background: transparent;
        }
        .navbar-toggler:focus {
            box-shadow: 0 0 0 3px rgba(108, 92, 231, 0.3);
        }
        .navbar-toggler-icon {
            filter: invert(1) brightness(2);
        }

        /* 板块通用 */
        .section {
            padding: 80px 0;
        }
        .section-alt {
            background: var(--bg-section);
        }
        .section-title {
            font-size: 2.2rem;
            font-weight: 800;
            margin-bottom: 12px;
            letter-spacing: -1px;
            background: linear-gradient(135deg, var(--text-light), var(--primary-light));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .section-sub {
            font-size: 1.1rem;
            color: var(--text-muted);
            max-width: 700px;
            margin: 0 auto 48px;
        }
        .text-center .section-sub {
            margin-left: auto;
            margin-right: auto;
        }

        /* 横幅 */
        .page-banner {
            position: relative;
            padding: 100px 0 80px;
            background: linear-gradient(135deg, #0a0a1a 0%, #1a0a2e 50%, #0f0f24 100%);
            overflow: hidden;
            text-align: center;
        }
        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            opacity: 0.12;
            z-index: 0;
        }
        .page-banner::after {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 30% 50%, rgba(108, 92, 231, 0.15), transparent 70%),
                radial-gradient(ellipse at 70% 50%, rgba(253, 121, 168, 0.10), transparent 70%);
            z-index: 1;
        }
        .page-banner .container {
            position: relative;
            z-index: 2;
        }
        .page-banner h1 {
            font-size: 3rem;
            font-weight: 800;
            margin-bottom: 16px;
            letter-spacing: -1.5px;
            background: linear-gradient(135deg, #fff, var(--primary-light));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .page-banner p {
            font-size: 1.15rem;
            color: rgba(240, 240, 255, 0.7);
            max-width: 680px;
            margin: 0 auto;
        }
        .page-banner .breadcrumb-custom {
            display: flex;
            justify-content: center;
            gap: 8px;
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-bottom: 20px;
        }
        .page-banner .breadcrumb-custom a {
            color: var(--primary-light);
        }
        .page-banner .breadcrumb-custom span {
            color: rgba(240, 240, 255, 0.5);
        }

        /* 卡片 */
        .game-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius);
            overflow: hidden;
            transition: var(--transition);
            height: 100%;
            box-shadow: var(--shadow);
        }
        .game-card:hover {
            transform: translateY(-8px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(108, 92, 231, 0.3);
        }
        .game-card .card-img {
            aspect-ratio: 16/9;
            overflow: hidden;
            position: relative;
        }
        .game-card .card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition);
        }
        .game-card:hover .card-img img {
            transform: scale(1.05);
        }
        .game-card .card-img .badge-tag {
            position: absolute;
            top: 12px;
            left: 12px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            font-size: 0.75rem;
            font-weight: 600;
            padding: 4px 14px;
            border-radius: 20px;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
        }
        .game-card .card-body {
            padding: 20px;
        }
        .game-card .card-body h5 {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--text-light);
        }
        .game-card .card-body p {
            font-size: 0.92rem;
            color: var(--text-muted);
            margin-bottom: 14px;
        }
        .game-card .card-footer-info {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 12px 20px;
            border-top: 1px solid var(--border-color);
            background: rgba(0, 0, 0, 0.15);
        }
        .game-card .card-footer-info .rating {
            color: #f9ca24;
            font-size: 0.85rem;
        }
        .game-card .card-footer-info .download-count {
            color: var(--text-muted);
            font-size: 0.85rem;
        }
        .game-card .card-footer-info .download-count i {
            margin-right: 4px;
        }

        /* 标签筛选 */
        .filter-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            justify-content: center;
            margin-bottom: 40px;
        }
        .filter-tags .tag {
            display: inline-block;
            padding: 8px 22px;
            border-radius: 30px;
            font-size: 0.9rem;
            font-weight: 500;
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid var(--border-color);
            color: var(--text-muted);
            cursor: pointer;
            transition: var(--transition);
        }
        .filter-tags .tag:hover {
            background: rgba(108, 92, 231, 0.15);
            border-color: var(--primary);
            color: var(--text-light);
        }
        .filter-tags .tag.active {
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            border-color: transparent;
            color: #fff;
            box-shadow: 0 4px 16px rgba(108, 92, 231, 0.3);
        }

        /* 排行列表 */
        .rank-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .rank-list li {
            display: flex;
            align-items: center;
            gap: 16px;
            padding: 16px 20px;
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-sm);
            margin-bottom: 12px;
            transition: var(--transition);
        }
        .rank-list li:hover {
            border-color: rgba(108, 92, 231, 0.3);
            background: rgba(108, 92, 231, 0.05);
            transform: translateX(4px);
        }
        .rank-list .rank-num {
            font-size: 1.4rem;
            font-weight: 800;
            color: var(--primary-light);
            min-width: 36px;
            text-align: center;
        }
        .rank-list .rank-num.top {
            color: var(--secondary);
        }
        .rank-list .rank-info {
            flex: 1;
        }
        .rank-list .rank-info h6 {
            font-size: 1rem;
            font-weight: 600;
            margin-bottom: 2px;
            color: var(--text-light);
        }
        .rank-list .rank-info small {
            color: var(--text-muted);
            font-size: 0.82rem;
        }
        .rank-list .rank-score {
            font-weight: 700;
            color: #f9ca24;
            font-size: 1.1rem;
        }

        /* 特色区块 */
        .feature-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 24px;
            margin-top: 20px;
        }
        .feature-item {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius);
            padding: 30px 20px;
            text-align: center;
            transition: var(--transition);
        }
        .feature-item:hover {
            border-color: rgba(108, 92, 231, 0.3);
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }
        .feature-item .icon {
            font-size: 2.4rem;
            color: var(--primary-light);
            margin-bottom: 16px;
        }
        .feature-item h6 {
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--text-light);
            margin-bottom: 6px;
        }
        .feature-item p {
            font-size: 0.88rem;
            color: var(--text-muted);
            margin-bottom: 0;
        }

        /* CTA */
        .cta-section {
            background: linear-gradient(135deg, #1a0a2e, #0a0a1a);
            position: relative;
            overflow: hidden;
            padding: 70px 0;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-3.png') center center / cover no-repeat;
            opacity: 0.08;
            z-index: 0;
        }
        .cta-section .container {
            position: relative;
            z-index: 1;
        }
        .cta-section h3 {
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 12px;
        }
        .cta-section p {
            color: var(--text-muted);
            max-width: 600px;
            margin: 0 auto 28px;
            font-size: 1.05rem;
        }
        .btn-cta {
            display: inline-block;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            font-weight: 600;
            padding: 14px 40px;
            border-radius: 40px;
            font-size: 1.05rem;
            border: none;
            box-shadow: 0 4px 24px rgba(108, 92, 231, 0.35);
            transition: var(--transition);
            text-decoration: none;
        }
        .btn-cta:hover {
            transform: translateY(-3px);
            box-shadow: 0 10px 40px rgba(108, 92, 231, 0.45);
            color: #fff;
            background: linear-gradient(135deg, var(--primary-dark), var(--primary));
        }
        .btn-cta i {
            margin-left: 8px;
        }

        .btn-outline-cta {
            display: inline-block;
            background: transparent;
            color: var(--primary-light);
            font-weight: 600;
            padding: 12px 32px;
            border-radius: 40px;
            font-size: 1rem;
            border: 2px solid var(--primary);
            transition: var(--transition);
            text-decoration: none;
        }
        .btn-outline-cta:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(108, 92, 231, 0.3);
        }

        /* FAQ */
        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-sm);
            margin-bottom: 12px;
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: rgba(108, 92, 231, 0.2);
        }
        .faq-question {
            padding: 18px 24px;
            font-weight: 600;
            font-size: 1rem;
            color: var(--text-light);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            background: transparent;
            border: none;
            width: 100%;
            text-align: left;
            transition: var(--transition);
        }
        .faq-question:hover {
            color: var(--primary-light);
        }
        .faq-question i {
            transition: var(--transition);
            color: var(--primary-light);
        }
        .faq-question[aria-expanded="true"] i {
            transform: rotate(180deg);
        }
        .faq-answer {
            padding: 0 24px 18px;
            color: var(--text-muted);
            font-size: 0.95rem;
            line-height: 1.7;
        }

        /* 页脚 */
        .footer {
            background: #060612;
            border-top: 1px solid rgba(108, 92, 231, 0.1);
            padding: 60px 0 30px;
        }
        .footer .footer-brand {
            font-size: 1.4rem;
            font-weight: 700;
            color: var(--text-light);
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 12px;
        }
        .footer .footer-desc {
            color: var(--text-muted);
            font-size: 0.9rem;
            max-width: 360px;
            line-height: 1.7;
        }
        .footer h5 {
            color: var(--text-light);
            font-size: 1rem;
            font-weight: 600;
            margin-bottom: 16px;
            letter-spacing: 0.5px;
        }
        .footer a {
            color: rgba(240, 240, 255, 0.5);
            font-size: 0.9rem;
            line-height: 2.2;
            transition: var(--transition);
        }
        .footer a:hover {
            color: var(--primary-light);
            padding-left: 4px;
        }
        .social-links a {
            display: inline-flex;
            width: 38px;
            height: 38px;
            align-items: center;
            justify-content: center;
            border-radius: 10px;
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid var(--border-color);
            color: var(--text-muted);
            font-size: 1.1rem;
            margin-right: 10px;
            transition: var(--transition);
        }
        .social-links a:hover {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            transform: translateY(-3px);
            padding-left: 0;
        }
        .footer-divider {
            border-color: rgba(255, 255, 255, 0.05);
            margin: 30px 0 20px;
        }
        .footer-copyright {
            text-align: center;
            color: rgba(255, 255, 255, 0.25);
            font-size: 0.85rem;
            margin-bottom: 0;
        }

        /* 响应式 */
        @media (max-width: 991.98px) {
            body {
                padding-top: 66px;
            }
            #mainNav {
                min-height: 66px;
            }
            #mainNav .container {
                min-height: 66px;
            }
            #mainNav .navbar-collapse {
                background: rgba(10, 10, 26, 0.98);
                border-radius: 0 0 var(--radius) var(--radius);
                padding: 12px 0;
                box-shadow: 0 16px 40px rgba(0, 0, 0, 0.5);
            }
            #mainNav .navbar-nav .nav-link {
                padding: 10px 24px;
                border-radius: 0;
            }
            #mainNav .navbar-nav .nav-link.active::after {
                display: none;
            }
            #mainNav .nav-cta {
                margin: 8px 24px;
                text-align: center;
            }
            .page-banner {
                padding: 70px 0 50px;
            }
            .page-banner h1 {
                font-size: 2rem;
            }
            .section {
                padding: 50px 0;
            }
            .section-title {
                font-size: 1.7rem;
            }
        }

        @media (max-width: 767.98px) {
            .page-banner h1 {
                font-size: 1.6rem;
            }
            .page-banner p {
                font-size: 0.95rem;
            }
            .section-title {
                font-size: 1.4rem;
            }
            .section-sub {
                font-size: 0.95rem;
                margin-bottom: 32px;
            }
            .game-card .card-body {
                padding: 14px;
            }
            .game-card .card-body h5 {
                font-size: 1rem;
            }
            .filter-tags .tag {
                padding: 6px 16px;
                font-size: 0.82rem;
            }
            .rank-list li {
                padding: 12px 14px;
                gap: 10px;
            }
            .rank-list .rank-num {
                font-size: 1.1rem;
                min-width: 28px;
            }
            .feature-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .feature-item {
                padding: 20px 14px;
            }
            .feature-item .icon {
                font-size: 1.8rem;
            }
            .cta-section h3 {
                font-size: 1.5rem;
            }
            .footer .footer-brand {
                font-size: 1.2rem;
            }
        }

        @media (max-width: 520px) {
            .page-banner {
                padding: 50px 0 36px;
            }
            .page-banner h1 {
                font-size: 1.3rem;
            }
            .section {
                padding: 36px 0;
            }
            .section-title {
                font-size: 1.2rem;
            }
            .game-card .card-footer-info {
                flex-direction: column;
                align-items: flex-start;
                gap: 4px;
                padding: 10px 14px;
            }
            .feature-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .filter-tags {
                gap: 6px;
            }
            .filter-tags .tag {
                padding: 4px 12px;
                font-size: 0.75rem;
            }
            .rank-list li {
                flex-wrap: wrap;
                gap: 6px;
            }
            .rank-list .rank-num {
                min-width: 24px;
                font-size: 1rem;
            }
            .btn-cta {
                padding: 12px 28px;
                font-size: 0.95rem;
            }
        }

/* roulang page: category3 */
/* ===== Design Variables ===== */
        :root {
            --primary: #6C5CE7;
            --primary-dark: #4A3DBF;
            --primary-light: #A29BFE;
            --primary-gradient: linear-gradient(135deg, #6C5CE7 0%, #4A3DBF 100%);
            --accent: #FDCB6E;
            --accent-dark: #E5B155;
            --bg-dark: #0F0A2A;
            --bg-section: #F8F7FF;
            --bg-card: #FFFFFF;
            --text-primary: #1A1A2E;
            --text-secondary: #4A4A6A;
            --text-muted: #8A8AA0;
            --text-light: #FFFFFF;
            --border-color: #E8E6F0;
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-sm: 0 2px 8px rgba(108, 92, 231, 0.08);
            --shadow-md: 0 8px 30px rgba(108, 92, 231, 0.12);
            --shadow-lg: 0 20px 60px rgba(108, 92, 231, 0.18);
            --shadow-hover: 0 16px 48px rgba(108, 92, 231, 0.22);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Segoe UI', system-ui, -apple-system, BlinkMacSystemFont, 'Helvetica Neue', Arial, sans-serif;
            --container-max: 1200px;
        }

        /* ===== Reset / Base ===== */
        *, *::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-size: 1rem;
            line-height: 1.7;
            color: var(--text-primary);
            background: #fff;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        a { color: var(--primary); text-decoration: none; transition: var(--transition); }
        a:hover { color: var(--primary-dark); text-decoration: none; }
        img { max-width: 100%; height: auto; display: block; }
        button, input, textarea, select { font-family: inherit; font-size: inherit; }
        ul, ol { padding-left: 1.25rem; margin-bottom: 0; }
        p { margin-bottom: 0.75rem; }
        h1, h2, h3, h4, h5, h6 { font-weight: 700; line-height: 1.3; color: var(--text-primary); margin-bottom: 0.5rem; }

        /* ===== Container ===== */
        .container { max-width: var(--container-max); padding-left: 1.25rem; padding-right: 1.25rem; }

        /* ===== Navbar (品牌活动导航风格) ===== */
        #mainNav {
            background: rgba(15, 10, 42, 0.95);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(108, 92, 231, 0.2);
            padding: 0.6rem 0;
            box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
            transition: var(--transition);
        }
        #mainNav .navbar-brand {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-weight: 800;
            font-size: 1.4rem;
            color: var(--text-light);
            letter-spacing: -0.3px;
            padding: 0.25rem 0;
        }
        #mainNav .navbar-brand .brand-icon {
            display: inline-flex;
            width: 38px;
            height: 38px;
            background: var(--primary-gradient);
            border-radius: 10px;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1.1rem;
            font-weight: 800;
            box-shadow: 0 4px 12px rgba(108, 92, 231, 0.4);
        }
        #mainNav .navbar-brand:hover { color: var(--text-light); }
        .navbar-toggler {
            border: 1px solid rgba(255,255,255,0.2);
            padding: 0.4rem 0.6rem;
            border-radius: var(--radius-sm);
            background: transparent;
        }
        .navbar-toggler:focus { box-shadow: 0 0 0 3px rgba(108, 92, 231, 0.4); }
        .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(255,255,255,0.8)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
        }
        #mainNav .nav-link {
            color: rgba(255,255,255,0.7);
            font-weight: 500;
            font-size: 0.95rem;
            padding: 0.5rem 1rem !important;
            border-radius: var(--radius-sm);
            transition: var(--transition);
            position: relative;
        }
        #mainNav .nav-link:hover,
        #mainNav .nav-link.active {
            color: var(--text-light);
            background: rgba(108, 92, 231, 0.2);
        }
        #mainNav .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 60%;
            height: 3px;
            background: var(--primary-gradient);
            border-radius: 3px;
        }
        #mainNav .nav-cta {
            background: var(--primary-gradient) !important;
            color: var(--text-light) !important;
            padding: 0.5rem 1.25rem !important;
            border-radius: 50px !important;
            font-weight: 600;
            box-shadow: 0 4px 15px rgba(108, 92, 231, 0.35);
            border: none;
        }
        #mainNav .nav-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 25px rgba(108, 92, 231, 0.5);
        }
        #mainNav .nav-cta::after { display: none !important; }
        .navbar-collapse { transition: var(--transition); }

        /* ===== Page Banner ===== */
        .page-banner {
            padding: 8rem 0 3.5rem;
            background: var(--bg-dark);
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center center;
            background-blend-mode: overlay;
            position: relative;
            overflow: hidden;
        }
        .page-banner::before {
            content: '';
            position: absolute;
            top: 0; left: 0; right: 0; bottom: 0;
            background: linear-gradient(135deg, rgba(15,10,42,0.85) 0%, rgba(108,92,231,0.6) 100%);
            z-index: 1;
        }
        .page-banner .container { position: relative; z-index: 2; }
        .page-banner h1 {
            color: var(--text-light);
            font-size: 2.8rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            margin-bottom: 0.75rem;
            text-shadow: 0 4px 20px rgba(0,0,0,0.3);
        }
        .page-banner .breadcrumb {
            background: transparent;
            padding: 0;
            margin: 0 0 0.5rem 0;
        }
        .page-banner .breadcrumb-item,
        .page-banner .breadcrumb-item a {
            color: rgba(255,255,255,0.7);
            font-size: 0.9rem;
        }
        .page-banner .breadcrumb-item.active { color: var(--accent); }
        .page-banner .breadcrumb-item + .breadcrumb-item::before { color: rgba(255,255,255,0.4); }
        .page-banner .banner-desc {
            color: rgba(255,255,255,0.85);
            font-size: 1.1rem;
            max-width: 680px;
            line-height: 1.7;
        }
        .page-banner .banner-badge {
            display: inline-block;
            background: var(--primary-gradient);
            padding: 0.25rem 1rem;
            border-radius: 50px;
            color: #fff;
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.5px;
            margin-bottom: 0.75rem;
            box-shadow: 0 4px 12px rgba(108,92,231,0.3);
        }

        /* ===== Section通用 ===== */
        .section { padding: 4.5rem 0; }
        .section-title {
            font-size: 2rem;
            font-weight: 800;
            letter-spacing: -0.3px;
            margin-bottom: 0.5rem;
            color: var(--text-primary);
        }
        .section-subtitle {
            font-size: 1.05rem;
            color: var(--text-secondary);
            max-width: 640px;
            margin-bottom: 2.5rem;
        }
        .section-bg { background: var(--bg-section); }

        /* ===== 新闻分类Tab ===== */
        .news-tabs {
            display: flex;
            flex-wrap: wrap;
            gap: 0.5rem;
            margin-bottom: 2rem;
            border-bottom: 1px solid var(--border-color);
            padding-bottom: 1rem;
        }
        .news-tabs .tab-item {
            padding: 0.45rem 1.25rem;
            border-radius: 50px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-secondary);
            background: var(--bg-section);
            border: 1px solid var(--border-color);
            cursor: pointer;
            transition: var(--transition);
        }
        .news-tabs .tab-item:hover,
        .news-tabs .tab-item.active {
            background: var(--primary-gradient);
            color: #fff;
            border-color: transparent;
            box-shadow: 0 4px 15px rgba(108,92,231,0.3);
        }

        /* ===== 新闻卡片 ===== */
        .news-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
            transition: var(--transition);
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .news-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: var(--primary-light);
        }
        .news-card .card-img-wrap {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16 / 10;
            background: var(--bg-section);
        }
        .news-card .card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .news-card:hover .card-img-wrap img { transform: scale(1.05); }
        .news-card .card-badge {
            position: absolute;
            top: 12px;
            left: 12px;
            background: var(--primary-gradient);
            color: #fff;
            font-size: 0.7rem;
            font-weight: 600;
            padding: 0.2rem 0.75rem;
            border-radius: 50px;
            box-shadow: 0 2px 10px rgba(108,92,231,0.3);
        }
        .news-card .card-body-custom {
            padding: 1.25rem 1.25rem 1.5rem;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .news-card .card-meta {
            font-size: 0.8rem;
            color: var(--text-muted);
            margin-bottom: 0.5rem;
            display: flex;
            gap: 1rem;
            align-items: center;
        }
        .news-card .card-meta i { margin-right: 0.3rem; }
        .news-card .card-title {
            font-size: 1.1rem;
            font-weight: 700;
            line-height: 1.4;
            margin-bottom: 0.5rem;
            color: var(--text-primary);
            transition: var(--transition);
        }
        .news-card:hover .card-title { color: var(--primary); }
        .news-card .card-text {
            font-size: 0.9rem;
            color: var(--text-secondary);
            flex: 1;
            margin-bottom: 0.75rem;
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .news-card .card-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 0.4rem;
            margin-top: auto;
        }
        .news-card .card-tags .tag {
            font-size: 0.7rem;
            padding: 0.15rem 0.6rem;
            border-radius: 50px;
            background: var(--bg-section);
            color: var(--text-muted);
            border: 1px solid var(--border-color);
            transition: var(--transition);
        }
        .news-card .card-tags .tag:hover {
            background: var(--primary-light);
            color: #fff;
            border-color: var(--primary);
        }
        .news-card .read-more {
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            margin-top: 0.5rem;
        }
        .news-card .read-more i { transition: var(--transition); }
        .news-card .read-more:hover i { transform: translateX(4px); }

        /* ===== 特色文章 (大卡片) ===== */
        .featured-news {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-md);
            border: 1px solid var(--border-color);
            transition: var(--transition);
            margin-bottom: 2rem;
        }
        .featured-news:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }
        .featured-news .row { margin: 0; }
        .featured-news .col-lg-6 { padding: 0; }
        .featured-news .featured-img {
            width: 100%;
            height: 100%;
            min-height: 300px;
            object-fit: cover;
        }
        .featured-news .featured-body {
            padding: 2rem 2rem;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }
        .featured-news .featured-badge {
            display: inline-block;
            background: var(--accent);
            color: var(--bg-dark);
            font-size: 0.75rem;
            font-weight: 700;
            padding: 0.25rem 1rem;
            border-radius: 50px;
            margin-bottom: 0.75rem;
            align-self: flex-start;
        }
        .featured-news h3 {
            font-size: 1.6rem;
            font-weight: 800;
            margin-bottom: 0.75rem;
            line-height: 1.35;
        }
        .featured-news .featured-meta {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-bottom: 1rem;
            display: flex;
            gap: 1.5rem;
            flex-wrap: wrap;
        }
        .featured-news .featured-desc {
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.7;
            margin-bottom: 1.25rem;
        }

        /* ===== 资讯列表 ===== */
        .list-news-item {
            display: flex;
            gap: 1rem;
            padding: 1rem 0;
            border-bottom: 1px solid var(--border-color);
            transition: var(--transition);
            align-items: flex-start;
        }
        .list-news-item:last-child { border-bottom: none; }
        .list-news-item:hover { padding-left: 0.5rem; }
        .list-news-item .list-number {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--primary-light);
            min-width: 2.2rem;
            line-height: 1.2;
        }
        .list-news-item .list-content { flex: 1; }
        .list-news-item .list-title {
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 0.25rem;
            transition: var(--transition);
            display: block;
        }
        .list-news-item .list-title:hover { color: var(--primary); }
        .list-news-item .list-meta {
            font-size: 0.8rem;
            color: var(--text-muted);
        }
        .list-news-item .list-meta i { margin-right: 0.3rem; }

        /* ===== 标签云 ===== */
        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 0.6rem;
        }
        .tag-cloud .tag-item {
            padding: 0.4rem 1rem;
            border-radius: 50px;
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            color: var(--text-secondary);
            font-size: 0.85rem;
            font-weight: 500;
            transition: var(--transition);
        }
        .tag-cloud .tag-item:hover {
            background: var(--primary-gradient);
            color: #fff;
            border-color: transparent;
            box-shadow: 0 4px 15px rgba(108,92,231,0.25);
            transform: translateY(-2px);
        }

        /* ===== 分页 ===== */
        .pagination-custom {
            display: flex;
            gap: 0.4rem;
            justify-content: center;
            margin-top: 2.5rem;
            flex-wrap: wrap;
        }
        .pagination-custom .page-item .page-link {
            border: 1px solid var(--border-color);
            border-radius: var(--radius-sm);
            padding: 0.5rem 1rem;
            color: var(--text-secondary);
            font-weight: 500;
            background: var(--bg-card);
            transition: var(--transition);
        }
        .pagination-custom .page-item .page-link:hover {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }
        .pagination-custom .page-item.active .page-link {
            background: var(--primary-gradient);
            color: #fff;
            border-color: transparent;
            box-shadow: 0 4px 12px rgba(108,92,231,0.3);
        }

        /* ===== CTA板块 ===== */
        .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: 4rem 0;
            position: relative;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: 0; left: 0; right: 0; bottom: 0;
            background: linear-gradient(135deg, rgba(15,10,42,0.88) 0%, rgba(108,92,231,0.7) 100%);
            z-index: 1;
        }
        .cta-section .container { position: relative; z-index: 2; }
        .cta-section h2 {
            color: var(--text-light);
            font-size: 2rem;
            font-weight: 800;
        }
        .cta-section p {
            color: rgba(255,255,255,0.8);
            font-size: 1.05rem;
            max-width: 600px;
        }
        .cta-section .btn-cta {
            background: var(--accent);
            color: var(--bg-dark);
            padding: 0.75rem 2rem;
            border-radius: 50px;
            font-weight: 700;
            font-size: 1rem;
            border: none;
            transition: var(--transition);
            box-shadow: 0 4px 20px rgba(253, 203, 110, 0.3);
        }
        .cta-section .btn-cta:hover {
            transform: translateY(-3px);
            box-shadow: 0 8px 30px rgba(253, 203, 110, 0.5);
            background: #fff;
            color: var(--primary-dark);
        }
        .cta-section .btn-outline-cta {
            background: transparent;
            color: var(--text-light);
            border: 2px solid rgba(255,255,255,0.3);
            padding: 0.7rem 1.8rem;
            border-radius: 50px;
            font-weight: 600;
            transition: var(--transition);
        }
        .cta-section .btn-outline-cta:hover {
            background: rgba(255,255,255,0.1);
            border-color: rgba(255,255,255,0.6);
        }

        /* ===== Footer (与首页共用) ===== */
        .footer {
            background: var(--bg-dark);
            padding: 3.5rem 0 1.5rem;
            color: rgba(255,255,255,0.7);
            border-top: 1px solid rgba(108,92,231,0.15);
        }
        .footer .footer-brand {
            font-size: 1.25rem;
            font-weight: 800;
            color: var(--text-light);
            display: flex;
            align-items: center;
            gap: 0.5rem;
            margin-bottom: 0.75rem;
        }
        .footer .footer-desc {
            font-size: 0.9rem;
            color: rgba(255,255,255,0.5);
            max-width: 360px;
            line-height: 1.7;
        }
        .footer h5 {
            color: var(--text-light);
            font-size: 0.95rem;
            font-weight: 700;
            margin-bottom: 1rem;
            letter-spacing: 0.3px;
        }
        .footer a {
            color: rgba(255,255,255,0.55);
            font-size: 0.9rem;
            transition: var(--transition);
            display: inline-block;
            padding: 0.2rem 0;
        }
        .footer a:hover { color: var(--accent); transform: translateX(3px); }
        .footer .social-links a {
            display: inline-flex;
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: rgba(255,255,255,0.08);
            align-items: center;
            justify-content: center;
            color: rgba(255,255,255,0.6);
            font-size: 1rem;
            margin-right: 0.5rem;
            transition: var(--transition);
        }
        .footer .social-links a:hover {
            background: var(--primary-gradient);
            color: #fff;
            transform: translateY(-3px);
            box-shadow: 0 4px 15px rgba(108,92,231,0.3);
        }
        .footer .footer-divider {
            border-color: rgba(255,255,255,0.08);
            margin: 2rem 0 1.25rem;
        }
        .footer .footer-copyright {
            font-size: 0.85rem;
            color: rgba(255,255,255,0.35);
            text-align: center;
            margin-bottom: 0;
        }
        .footer .footer-copyright a { color: rgba(255,255,255,0.4); }
        .footer .footer-copyright a:hover { color: var(--accent); }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .page-banner h1 { font-size: 2.2rem; }
            .section-title { font-size: 1.7rem; }
            .featured-news h3 { font-size: 1.3rem; }
            .featured-news .featured-body { padding: 1.5rem; }
        }
        @media (max-width: 768px) {
            .page-banner { padding: 6rem 0 2.5rem; }
            .page-banner h1 { font-size: 1.8rem; }
            .page-banner .banner-desc { font-size: 0.95rem; }
            .section { padding: 3rem 0; }
            .section-title { font-size: 1.5rem; }
            .section-subtitle { font-size: 0.95rem; }
            .news-tabs { gap: 0.4rem; }
            .news-tabs .tab-item { font-size: 0.8rem; padding: 0.35rem 1rem; }
            .featured-news .featured-img { min-height: 220px; }
            .featured-news h3 { font-size: 1.15rem; }
            .featured-news .featured-body { padding: 1.25rem; }
            .news-card .card-title { font-size: 1rem; }
            .list-news-item .list-title { font-size: 0.9rem; }
            .cta-section h2 { font-size: 1.5rem; }
            .cta-section .btn-cta,
            .cta-section .btn-outline-cta { width: 100%; text-align: center; }
            #mainNav .navbar-brand { font-size: 1.15rem; }
            #mainNav .nav-link { padding: 0.4rem 0.8rem !important; font-size: 0.9rem; }
            .footer .footer-brand { font-size: 1.1rem; }
        }
        @media (max-width: 520px) {
            .page-banner h1 { font-size: 1.5rem; }
            .page-banner .banner-desc { font-size: 0.85rem; }
            .section-title { font-size: 1.3rem; }
            .news-card .card-body-custom { padding: 1rem; }
            .news-card .card-title { font-size: 0.95rem; }
            .featured-news h3 { font-size: 1rem; }
            .list-news-item { flex-direction: column; gap: 0.25rem; }
            .list-news-item .list-number { font-size: 1.2rem; min-width: 1.5rem; }
            .tag-cloud .tag-item { font-size: 0.75rem; padding: 0.3rem 0.8rem; }
            .pagination-custom .page-item .page-link { padding: 0.35rem 0.7rem; font-size: 0.8rem; }
            .footer { padding: 2.5rem 0 1rem; }
        }

        /* ===== 工具类 ===== */
        .text-primary-custom { color: var(--primary) !important; }
        .bg-primary-custom { background: var(--primary-gradient) !important; }
        .rounded-custom { border-radius: var(--radius-md) !important; }
        .shadow-custom { box-shadow: var(--shadow-md) !important; }
        .fw-800 { font-weight: 800 !important; }