/* roulang page: index */
:root {
            --primary: #6366f1;
            --primary-dark: #4f46e5;
            --primary-light: #a5b4fc;
            --secondary: #06b6d4;
            --accent: #f59e0b;
            --bg-dark: #0f172a;
            --bg-card: #1e293b;
            --bg-section: #f8fafc;
            --text-primary: #1e293b;
            --text-secondary: #64748b;
            --text-light: #94a3b8;
            --border-color: #e2e8f0;
            --radius: 16px;
            --radius-sm: 10px;
            --shadow-card: 0 4px 24px rgba(0,0,0,0.06);
            --shadow-hover: 0 12px 40px rgba(99,102,241,0.15);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }
        * { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; }
        body {
            font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
            line-height: 1.6;
            color: var(--text-primary);
            background: #ffffff;
            -webkit-font-smoothing: antialiased;
        }
        a { color: inherit; text-decoration: none; transition: var(--transition); }
        img { max-width: 100%; height: auto; display: block; }
        button, input, textarea { font-family: inherit; }
        .container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
        .section-padding { padding: 80px 0; }
        .section-title {
            font-size: 2.25rem;
            font-weight: 800;
            line-height: 1.2;
            letter-spacing: -0.02em;
            margin-bottom: 12px;
        }
        .section-subtitle {
            font-size: 1.05rem;
            color: var(--text-secondary);
            max-width: 640px;
            margin: 0 auto 48px;
            line-height: 1.7;
        }
        .glass-card {
            background: rgba(255,255,255,0.8);
            backdrop-filter: blur(12px);
            border: 1px solid rgba(255,255,255,0.3);
            border-radius: var(--radius);
            box-shadow: var(--shadow-card);
            transition: var(--transition);
        }
        .glass-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.95rem;
            border: none;
            cursor: pointer;
            transition: var(--transition);
            line-height: 1.4;
        }
        .btn-primary {
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            color: #fff;
            box-shadow: 0 4px 16px rgba(99,102,241,0.35);
        }
        .btn-primary:hover {
            box-shadow: 0 8px 32px rgba(99,102,241,0.45);
            transform: translateY(-2px) scale(1.02);
        }
        .btn-outline {
            background: transparent;
            color: var(--primary);
            border: 2px solid var(--primary);
        }
        .btn-outline:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-2px);
        }
        .badge {
            display: inline-block;
            padding: 4px 14px;
            border-radius: 50px;
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.02em;
        }
        .badge-primary { background: rgba(99,102,241,0.12); color: var(--primary); }
        .badge-amber { background: rgba(245,158,11,0.12); color: #b45309; }
        .badge-cyan { background: rgba(6,182,212,0.12); color: #0e7490; }
        .badge-emerald { background: rgba(16,185,129,0.12); color: #047857; }
        .stat-number {
            font-size: 2.5rem;
            font-weight: 800;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            line-height: 1.1;
        }
        .glow-line {
            width: 60px;
            height: 4px;
            background: linear-gradient(90deg, var(--primary), var(--secondary));
            border-radius: 4px;
            margin: 16px auto 24px;
        }

        /* 导航 */
        .navbar {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(255,255,255,0.85);
            backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(226,232,240,0.5);
            transition: var(--transition);
            padding: 0 24px;
        }
        .navbar-inner {
            max-width: 1200px;
            margin: 0 auto;
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 68px;
        }
        .navbar-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.35rem;
            font-weight: 800;
            color: var(--text-primary);
            letter-spacing: -0.03em;
        }
        .navbar-logo .logo-icon {
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1.2rem;
            font-weight: 700;
        }
        .navbar-links {
            display: flex;
            align-items: center;
            gap: 8px;
            list-style: none;
        }
        .navbar-links a {
            padding: 8px 18px;
            border-radius: 50px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-secondary);
            transition: var(--transition);
        }
        .navbar-links a:hover,
        .navbar-links a.active {
            background: rgba(99,102,241,0.08);
            color: var(--primary);
        }
        .navbar-links a.active {
            font-weight: 600;
            color: var(--primary);
            background: rgba(99,102,241,0.12);
        }
        .navbar-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            background: none;
            border: none;
            cursor: pointer;
            padding: 4px;
        }
        .navbar-toggle span {
            width: 26px;
            height: 2.5px;
            background: var(--text-primary);
            border-radius: 4px;
            transition: var(--transition);
        }

        /* Hero */
        .hero {
            padding: 140px 0 80px;
            background: linear-gradient(160deg, #f0f4ff 0%, #e8f0fe 40%, #fff 100%);
            position: relative;
            overflow: hidden;
        }
        .hero::before {
            content: '';
            position: absolute;
            top: -30%;
            right: -10%;
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(99,102,241,0.08) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .hero::after {
            content: '';
            position: absolute;
            bottom: -20%;
            left: -5%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(6,182,212,0.06) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .hero-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
            position: relative;
            z-index: 1;
        }
        .hero h1 {
            font-size: 3.25rem;
            font-weight: 800;
            line-height: 1.15;
            letter-spacing: -0.03em;
            margin-bottom: 20px;
        }
        .hero h1 span {
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .hero p {
            font-size: 1.1rem;
            color: var(--text-secondary);
            line-height: 1.8;
            max-width: 520px;
            margin-bottom: 32px;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
        }
        .hero-image {
            position: relative;
            display: flex;
            justify-content: center;
            align-items: center;
        }
        .hero-image .mockup {
            width: 100%;
            max-width: 440px;
            border-radius: 24px;
            background: linear-gradient(135deg, #1e293b, #0f172a);
            padding: 24px;
            box-shadow: 0 24px 64px rgba(0,0,0,0.15);
            aspect-ratio: 4/3;
            display: flex;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            color: #fff;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .mockup .mockup-icon {
            font-size: 3rem;
            margin-bottom: 16px;
            opacity: 0.9;
        }
        .mockup .mockup-title {
            font-size: 1.4rem;
            font-weight: 700;
            margin-bottom: 8px;
        }
        .mockup .mockup-desc {
            font-size: 0.9rem;
            opacity: 0.7;
            max-width: 260px;
        }
        .mockup-glow {
            position: absolute;
            top: -20%;
            left: -20%;
            width: 140%;
            height: 140%;
            background: radial-gradient(circle at 30% 40%, rgba(99,102,241,0.15), transparent 60%);
            pointer-events: none;
        }

        /* 分类卡片 */
        .categories-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .category-card {
            background: #fff;
            border-radius: var(--radius);
            padding: 36px 28px 32px;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-color);
            transition: var(--transition);
            text-align: center;
        }
        .category-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-6px);
            border-color: var(--primary-light);
        }
        .category-card .cat-icon {
            width: 64px;
            height: 64px;
            margin: 0 auto 18px;
            border-radius: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.8rem;
            color: #fff;
        }
        .category-card h3 {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 10px;
        }
        .category-card p {
            font-size: 0.92rem;
            color: var(--text-secondary);
            line-height: 1.6;
            margin-bottom: 18px;
        }
        .category-card .cat-link {
            font-size: 0.88rem;
            font-weight: 600;
            color: var(--primary);
        }
        .category-card .cat-link i {
            transition: transform 0.2s;
        }
        .category-card .cat-link:hover i {
            transform: translateX(4px);
        }

        /* 最新资讯列表 */
        .news-list {
            display: grid;
            grid-template-columns: 1fr;
            gap: 16px;
        }
        .news-item {
            display: flex;
            align-items: center;
            gap: 20px;
            padding: 20px 24px;
            background: #fff;
            border-radius: var(--radius-sm);
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-color);
            transition: var(--transition);
        }
        .news-item:hover {
            box-shadow: var(--shadow-hover);
            transform: translateX(4px);
            border-color: var(--primary-light);
        }
        .news-item .news-badge {
            flex-shrink: 0;
        }
        .news-item .news-content {
            flex: 1;
            min-width: 0;
        }
        .news-item .news-content h4 {
            font-size: 1rem;
            font-weight: 600;
            margin-bottom: 4px;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }
        .news-item .news-content p {
            font-size: 0.85rem;
            color: var(--text-secondary);
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }
        .news-item .news-meta {
            flex-shrink: 0;
            text-align: right;
            font-size: 0.8rem;
            color: var(--text-light);
        }
        .news-empty {
            text-align: center;
            padding: 48px 24px;
            color: var(--text-secondary);
            background: #fff;
            border-radius: var(--radius-sm);
            border: 1px dashed var(--border-color);
        }
        .news-empty i {
            font-size: 2.5rem;
            color: var(--text-light);
            margin-bottom: 12px;
            display: block;
        }

        /* 数据统计 */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .stat-card {
            background: #fff;
            border-radius: var(--radius);
            padding: 32px 20px;
            text-align: center;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-color);
            transition: var(--transition);
        }
        .stat-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }
        .stat-card .stat-number {
            font-size: 2.2rem;
        }
        .stat-card .stat-label {
            font-size: 0.92rem;
            color: var(--text-secondary);
            margin-top: 8px;
            font-weight: 500;
        }

        /* 流程步骤 */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 32px;
            position: relative;
        }
        .steps-grid::before {
            content: '';
            position: absolute;
            top: 48px;
            left: 16%;
            right: 16%;
            height: 2px;
            background: linear-gradient(90deg, var(--primary-light), var(--secondary));
            opacity: 0.3;
        }
        .step-card {
            text-align: center;
            position: relative;
            z-index: 1;
        }
        .step-card .step-number {
            width: 56px;
            height: 56px;
            margin: 0 auto 20px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            font-weight: 700;
            box-shadow: 0 8px 24px rgba(99,102,241,0.25);
        }
        .step-card h4 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 8px;
        }
        .step-card p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.6;
            max-width: 280px;
            margin: 0 auto;
        }

        /* FAQ */
        .faq-grid {
            max-width: 800px;
            margin: 0 auto;
            display: grid;
            gap: 16px;
        }
        .faq-item {
            background: #fff;
            border-radius: var(--radius-sm);
            border: 1px solid var(--border-color);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: var(--primary-light);
        }
        .faq-question {
            padding: 18px 24px;
            font-weight: 600;
            font-size: 1rem;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            background: none;
            border: none;
            width: 100%;
            text-align: left;
            color: var(--text-primary);
            transition: var(--transition);
        }
        .faq-question:hover { color: var(--primary); }
        .faq-question i { transition: transform 0.3s; font-size: 0.85rem; color: var(--text-light); }
        .faq-item.open .faq-question i { transform: rotate(180deg); }
        .faq-answer {
            padding: 0 24px 18px;
            font-size: 0.92rem;
            color: var(--text-secondary);
            line-height: 1.7;
            display: none;
        }
        .faq-item.open .faq-answer { display: block; }

        /* CTA */
        .cta-section {
            background: linear-gradient(135deg, #1e293b, #0f172a);
            border-radius: var(--radius);
            padding: 64px 48px;
            text-align: center;
            color: #fff;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -20%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(99,102,241,0.1), transparent 70%);
            border-radius: 50%;
        }
        .cta-section h2 {
            font-size: 2rem;
            font-weight: 800;
            margin-bottom: 16px;
            position: relative;
            z-index: 1;
        }
        .cta-section p {
            font-size: 1.05rem;
            opacity: 0.8;
            max-width: 560px;
            margin: 0 auto 32px;
            position: relative;
            z-index: 1;
        }
        .cta-section .btn-primary {
            background: #fff;
            color: var(--text-primary);
            box-shadow: 0 4px 24px rgba(0,0,0,0.2);
        }
        .cta-section .btn-primary:hover {
            box-shadow: 0 8px 40px rgba(0,0,0,0.3);
            transform: translateY(-3px);
        }

        /* 页脚 */
        .footer {
            background: #0f172a;
            color: rgba(255,255,255,0.7);
            padding: 48px 0 32px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-brand {
            font-size: 1.2rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .footer-brand .logo-icon {
            width: 34px;
            height: 34px;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1rem;
            font-weight: 700;
            color: #fff;
        }
        .footer-desc {
            font-size: 0.9rem;
            line-height: 1.7;
            max-width: 320px;
        }
        .footer h4 {
            color: #fff;
            font-size: 0.95rem;
            font-weight: 600;
            margin-bottom: 16px;
        }
        .footer-links {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .footer-links a {
            font-size: 0.88rem;
            color: rgba(255,255,255,0.6);
            transition: var(--transition);
        }
        .footer-links a:hover {
            color: #fff;
            padding-left: 4px;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.08);
            padding-top: 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 0.85rem;
        }
        .footer-bottom a {
            color: rgba(255,255,255,0.6);
        }
        .footer-bottom a:hover { color: #fff; }

        /* 响应式 */
        @media (max-width: 1024px) {
            .hero-grid { grid-template-columns: 1fr; text-align: center; }
            .hero p { margin: 0 auto 32px; }
            .hero-actions { justify-content: center; }
            .hero-image .mockup { max-width: 360px; margin: 0 auto; }
            .categories-grid { grid-template-columns: repeat(2, 1fr); }
            .stats-grid { grid-template-columns: repeat(2, 1fr); }
            .steps-grid { grid-template-columns: repeat(2, 1fr); }
            .steps-grid::before { display: none; }
            .footer-grid { grid-template-columns: 1fr 1fr; }
        }
        @media (max-width: 768px) {
            .navbar-links {
                display: none;
                position: absolute;
                top: 68px;
                left: 0;
                right: 0;
                background: rgba(255,255,255,0.98);
                backdrop-filter: blur(20px);
                flex-direction: column;
                padding: 16px 24px;
                border-bottom: 1px solid var(--border-color);
                box-shadow: 0 12px 32px rgba(0,0,0,0.06);
            }
            .navbar-links.open { display: flex; }
            .navbar-toggle { display: flex; }
            .hero { padding: 120px 0 56px; }
            .hero h1 { font-size: 2.2rem; }
            .section-title { font-size: 1.75rem; }
            .categories-grid { grid-template-columns: 1fr; }
            .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
            .stat-number { font-size: 1.8rem; }
            .steps-grid { grid-template-columns: 1fr; gap: 28px; }
            .news-item { flex-direction: column; align-items: flex-start; gap: 8px; }
            .news-item .news-meta { text-align: left; }
            .cta-section { padding: 48px 24px; }
            .cta-section h2 { font-size: 1.5rem; }
            .footer-grid { grid-template-columns: 1fr; gap: 28px; }
            .footer-bottom { flex-direction: column; text-align: center; }
        }
        @media (max-width: 520px) {
            .container { padding: 0 16px; }
            .hero h1 { font-size: 1.8rem; }
            .hero p { font-size: 0.95rem; }
            .hero-actions { flex-direction: column; align-items: center; }
            .btn { width: 100%; justify-content: center; }
            .stats-grid { grid-template-columns: 1fr 1fr; gap: 12px; }
            .stat-card { padding: 20px 12px; }
            .stat-number { font-size: 1.5rem; }
            .section-padding { padding: 48px 0; }
            .news-item { padding: 14px 16px; }
        }

/* roulang page: category1 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #2563eb;
            --primary-dark: #1d4ed8;
            --primary-light: #3b82f6;
            --secondary: #0f172a;
            --accent: #f59e0b;
            --bg-body: #f8fafc;
            --bg-card: #ffffff;
            --bg-dark: #0b1121;
            --text-primary: #0f172a;
            --text-secondary: #475569;
            --text-muted: #94a3b8;
            --text-inverse: #f1f5f9;
            --border: #e2e8f0;
            --radius: 16px;
            --radius-sm: 10px;
            --shadow-card: 0 8px 30px rgba(0, 0, 0, 0.06);
            --shadow-card-hover: 0 18px 50px rgba(0, 0, 0, 0.10);
            --shadow-nav: 0 4px 20px rgba(0, 0, 0, 0.05);
            --font-sans: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
            --transition: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

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

        body {
            font-family: var(--font-sans);
            background-color: var(--bg-body);
            color: var(--text-primary);
            line-height: 1.7;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition);
        }

        a:focus-visible,
        button:focus-visible {
            outline: 3px solid var(--primary-light);
            outline-offset: 2px;
            border-radius: 4px;
        }

        ul {
            list-style: none;
        }

        /* ===== 容器 ===== */
        .container {
            max-width: 1200px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        @media (max-width: 640px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
        }

        /* ===== 导航 ===== */
        .navbar {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid rgba(226, 232, 240, 0.6);
            box-shadow: var(--shadow-nav);
            transition: background var(--transition);
        }

        .navbar-inner {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
        }

        .navbar-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 700;
            font-size: 1.4rem;
            color: var(--primary);
            letter-spacing: -0.3px;
            transition: opacity var(--transition);
        }

        .navbar-logo:hover {
            opacity: 0.85;
        }

        .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            background: var(--primary);
            color: #fff;
            border-radius: 10px;
            font-size: 1.2rem;
            font-weight: 700;
            flex-shrink: 0;
        }

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

        .navbar-links li a {
            padding: 8px 18px;
            border-radius: 40px;
            font-weight: 500;
            font-size: 0.95rem;
            color: var(--text-secondary);
            transition: background var(--transition), color var(--transition);
            white-space: nowrap;
        }

        .navbar-links li a:hover {
            background: rgba(37, 99, 235, 0.08);
            color: var(--primary);
        }

        .navbar-links li a.active {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 4px 14px rgba(37, 99, 235, 0.30);
        }

        .navbar-links li a.active:hover {
            background: var(--primary-dark);
        }

        /* 移动端汉堡按钮 */
        .navbar-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            background: transparent;
            border: none;
            cursor: pointer;
            padding: 6px 4px;
            border-radius: 6px;
        }

        .navbar-toggle span {
            display: block;
            width: 26px;
            height: 3px;
            background: var(--text-primary);
            border-radius: 4px;
            transition: transform var(--transition), opacity var(--transition);
        }

        .navbar-toggle.active span:nth-child(1) {
            transform: rotate(45deg) translate(5px, 6px);
        }
        .navbar-toggle.active span:nth-child(2) {
            opacity: 0;
        }
        .navbar-toggle.active span:nth-child(3) {
            transform: rotate(-45deg) translate(5px, -6px);
        }

        @media (max-width: 768px) {
            .navbar-toggle {
                display: flex;
            }

            .navbar-links {
                position: absolute;
                top: 72px;
                left: 0;
                right: 0;
                background: rgba(255, 255, 255, 0.98);
                backdrop-filter: blur(18px);
                flex-direction: column;
                padding: 18px 24px 28px;
                gap: 6px;
                border-bottom: 1px solid var(--border);
                box-shadow: 0 20px 40px rgba(0, 0, 0, 0.06);
                transform: translateY(-12px);
                opacity: 0;
                visibility: hidden;
                transition: transform 0.35s ease, opacity 0.35s ease, visibility 0.35s ease;
                border-radius: 0 0 20px 20px;
            }

            .navbar-links.open {
                transform: translateY(0);
                opacity: 1;
                visibility: visible;
            }

            .navbar-links li a {
                padding: 12px 20px;
                width: 100%;
                text-align: center;
                font-size: 1.05rem;
            }

            .navbar-links li a.active {
                background: var(--primary);
                color: #fff;
            }
        }

        @media (max-width: 480px) {
            .navbar-inner {
                padding: 0 16px;
                height: 64px;
            }
            .navbar-logo {
                font-size: 1.2rem;
            }
            .logo-icon {
                width: 32px;
                height: 32px;
                font-size: 1rem;
            }
        }

        /* ===== 公用板块标题 ===== */
        .section-title {
            font-size: 2.2rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            line-height: 1.25;
            color: var(--text-primary);
            margin-bottom: 14px;
        }

        .section-subtitle {
            font-size: 1.1rem;
            color: var(--text-secondary);
            max-width: 680px;
            line-height: 1.6;
        }

        @media (max-width: 640px) {
            .section-title {
                font-size: 1.6rem;
            }
            .section-subtitle {
                font-size: 1rem;
            }
        }

        /* ===== 卡片通用 ===== */
        .card {
            background: var(--bg-card);
            border-radius: var(--radius);
            box-shadow: var(--shadow-card);
            border: 1px solid rgba(226, 232, 240, 0.5);
            transition: transform var(--transition), box-shadow var(--transition);
        }

        .card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-card-hover);
        }

        /* ===== 按钮 ===== */
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 34px;
            background: var(--primary);
            color: #fff;
            font-weight: 600;
            font-size: 1rem;
            border: none;
            border-radius: 50px;
            cursor: pointer;
            transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
            box-shadow: 0 6px 24px rgba(37, 99, 235, 0.25);
        }

        .btn-primary:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 12px 32px rgba(37, 99, 235, 0.35);
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 4px 16px rgba(37, 99, 235, 0.20);
        }

        .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 12px 28px;
            background: transparent;
            color: var(--primary);
            font-weight: 600;
            font-size: 1rem;
            border: 2px solid var(--primary);
            border-radius: 50px;
            cursor: pointer;
            transition: background var(--transition), color var(--transition), transform var(--transition);
        }

        .btn-outline:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-2px);
        }

        /* ===== 标签 / 徽章 ===== */
        .badge {
            display: inline-block;
            padding: 4px 16px;
            background: rgba(37, 99, 235, 0.10);
            color: var(--primary);
            font-weight: 600;
            font-size: 0.85rem;
            border-radius: 50px;
            letter-spacing: 0.3px;
        }

        .badge-accent {
            background: rgba(245, 158, 11, 0.14);
            color: #b45309;
        }

        .badge-green {
            background: rgba(16, 185, 129, 0.14);
            color: #047857;
        }

        /* ===== Hero ===== */
        .hero-platform {
            padding: 80px 0 70px;
            background: linear-gradient(165deg, #f0f4ff 0%, #e6edfe 100%);
            border-bottom: 1px solid rgba(226, 232, 240, 0.5);
        }

        .hero-platform .container {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            align-items: center;
        }

        .hero-platform-content h1 {
            font-size: 2.8rem;
            font-weight: 800;
            line-height: 1.2;
            letter-spacing: -0.6px;
            color: var(--text-primary);
            margin-bottom: 18px;
        }

        .hero-platform-content h1 span {
            color: var(--primary);
        }

        .hero-platform-content p {
            font-size: 1.1rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 28px;
            max-width: 520px;
        }

        .hero-platform-visual {
            display: flex;
            justify-content: center;
            align-items: center;
            position: relative;
        }

        .hero-platform-visual .mock-card {
            background: #fff;
            border-radius: 20px;
            padding: 32px 36px;
            box-shadow: 0 20px 60px rgba(0, 0, 0, 0.08);
            border: 1px solid rgba(226, 232, 240, 0.5);
            width: 100%;
            max-width: 420px;
        }

        .hero-platform-visual .mock-card .mock-row {
            display: flex;
            align-items: center;
            gap: 14px;
            padding: 12px 0;
            border-bottom: 1px solid var(--border);
        }

        .hero-platform-visual .mock-card .mock-row:last-child {
            border-bottom: none;
        }

        .mock-dot {
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: var(--primary);
            flex-shrink: 0;
        }

        .mock-dot.green {
            background: #10b981;
        }
        .mock-dot.accent {
            background: var(--accent);
        }

        @media (max-width: 1024px) {
            .hero-platform-content h1 {
                font-size: 2.2rem;
            }
        }

        @media (max-width: 768px) {
            .hero-platform {
                padding: 56px 0 50px;
            }
            .hero-platform .container {
                grid-template-columns: 1fr;
                gap: 36px;
                text-align: center;
            }
            .hero-platform-content p {
                margin-left: auto;
                margin-right: auto;
            }
            .hero-platform-content .flex {
                justify-content: center;
            }
            .hero-platform-content h1 {
                font-size: 1.9rem;
            }
            .hero-platform-visual .mock-card {
                padding: 24px 20px;
            }
        }

        @media (max-width: 480px) {
            .hero-platform-content h1 {
                font-size: 1.6rem;
            }
        }

        /* ===== 功能特色 ===== */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }

        .feature-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            padding: 36px 30px 32px;
            box-shadow: var(--shadow-card);
            border: 1px solid rgba(226, 232, 240, 0.5);
            transition: transform var(--transition), box-shadow var(--transition);
        }

        .feature-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-card-hover);
        }

        .feature-card .icon-wrap {
            width: 56px;
            height: 56px;
            background: rgba(37, 99, 235, 0.10);
            border-radius: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.6rem;
            color: var(--primary);
            margin-bottom: 18px;
            transition: background var(--transition), color var(--transition);
        }

        .feature-card:hover .icon-wrap {
            background: var(--primary);
            color: #fff;
        }

        .feature-card h3 {
            font-size: 1.25rem;
            font-weight: 700;
            margin-bottom: 10px;
        }

        .feature-card p {
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.6;
        }

        @media (max-width: 1024px) {
            .features-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 640px) {
            .features-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .feature-card {
                padding: 28px 22px 24px;
            }
        }

        /* ===== 使用流程（带步骤线） ===== */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 28px;
            counter-reset: step;
            position: relative;
        }

        .steps-grid::before {
            content: '';
            position: absolute;
            top: 44px;
            left: calc(12.5% + 28px);
            right: calc(12.5% + 28px);
            height: 3px;
            background: linear-gradient(90deg, var(--primary), var(--accent));
            border-radius: 4px;
            z-index: 0;
        }

        .step-card {
            counter-increment: step;
            background: var(--bg-card);
            border-radius: var(--radius);
            padding: 32px 24px 28px;
            box-shadow: var(--shadow-card);
            border: 1px solid rgba(226, 232, 240, 0.5);
            position: relative;
            z-index: 1;
            text-align: center;
            transition: transform var(--transition), box-shadow var(--transition);
        }

        .step-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-card-hover);
        }

        .step-card .step-number {
            width: 52px;
            height: 52px;
            margin: 0 auto 16px;
            background: var(--primary);
            color: #fff;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 1.3rem;
            box-shadow: 0 6px 20px rgba(37, 99, 235, 0.25);
        }

        .step-card:nth-child(2) .step-number {
            background: #3b82f6;
        }
        .step-card:nth-child(3) .step-number {
            background: #6366f1;
        }
        .step-card:nth-child(4) .step-number {
            background: var(--accent);
        }

        .step-card h4 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 8px;
        }

        .step-card p {
            color: var(--text-secondary);
            font-size: 0.9rem;
            line-height: 1.5;
        }

        @media (max-width: 1024px) {
            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .steps-grid::before {
                display: none;
            }
        }

        @media (max-width: 640px) {
            .steps-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 820px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .faq-item {
            background: var(--bg-card);
            border-radius: var(--radius-sm);
            border: 1px solid var(--border);
            overflow: hidden;
            transition: box-shadow var(--transition);
        }

        .faq-item:hover {
            box-shadow: var(--shadow-card);
        }

        .faq-question {
            width: 100%;
            padding: 20px 28px;
            background: transparent;
            border: none;
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--text-primary);
            text-align: left;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
            transition: background var(--transition);
        }

        .faq-question:hover {
            background: rgba(37, 99, 235, 0.03);
        }

        .faq-question .faq-icon {
            font-size: 1.2rem;
            color: var(--primary);
            transition: transform var(--transition);
            flex-shrink: 0;
        }

        .faq-item.open .faq-question .faq-icon {
            transform: rotate(180deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.45s ease, padding 0.3s ease;
            padding: 0 28px;
            color: var(--text-secondary);
            line-height: 1.7;
            font-size: 0.95rem;
        }

        .faq-item.open .faq-answer {
            max-height: 280px;
            padding: 0 28px 24px;
        }

        @media (max-width: 640px) {
            .faq-question {
                padding: 16px 18px;
                font-size: 0.95rem;
            }
            .faq-answer {
                padding: 0 18px;
                font-size: 0.9rem;
            }
            .faq-item.open .faq-answer {
                padding: 0 18px 18px;
            }
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--secondary) 0%, #1a2332 100%);
            border-radius: var(--radius);
            padding: 64px 48px;
            text-align: center;
            color: #fff;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 30% 50%, rgba(37, 99, 235, 0.20) 0%, transparent 70%);
            pointer-events: none;
        }

        .cta-section h2 {
            font-size: 2.2rem;
            font-weight: 800;
            letter-spacing: -0.4px;
            margin-bottom: 14px;
            position: relative;
        }

        .cta-section p {
            font-size: 1.1rem;
            opacity: 0.85;
            max-width: 560px;
            margin: 0 auto 32px;
            line-height: 1.6;
            position: relative;
        }

        .cta-section .btn-primary {
            background: #fff;
            color: var(--primary);
            box-shadow: 0 8px 28px rgba(0, 0, 0, 0.20);
        }

        .cta-section .btn-primary:hover {
            background: #f1f5f9;
            transform: translateY(-3px);
            box-shadow: 0 14px 36px rgba(0, 0, 0, 0.25);
        }

        @media (max-width: 640px) {
            .cta-section {
                padding: 40px 24px;
                border-radius: var(--radius-sm);
            }
            .cta-section h2 {
                font-size: 1.6rem;
            }
            .cta-section p {
                font-size: 0.95rem;
            }
        }

        /* ===== 页脚 ===== */
        .footer {
            background: var(--bg-dark);
            color: var(--text-inverse);
            padding: 56px 0 0;
            margin-top: 60px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 700;
            font-size: 1.3rem;
            color: #fff;
            margin-bottom: 12px;
        }

        .footer-desc {
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.9rem;
            line-height: 1.7;
            max-width: 320px;
        }

        .footer h4 {
            color: #fff;
            font-weight: 600;
            font-size: 1rem;
            margin-bottom: 16px;
            letter-spacing: 0.3px;
        }

        .footer-links {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .footer-links li a {
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.9rem;
            transition: color var(--transition), padding-left var(--transition);
        }

        .footer-links li a:hover {
            color: #fff;
            padding-left: 4px;
        }

        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 24px 0;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.4);
            flex-wrap: wrap;
            gap: 12px;
        }

        .footer-bottom a {
            color: rgba(255, 255, 255, 0.5);
            transition: color var(--transition);
        }

        .footer-bottom a:hover {
            color: #fff;
        }

        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
            .footer-desc {
                max-width: 100%;
            }
        }

        @media (max-width: 640px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .footer {
                padding-top: 40px;
            }
        }

        /* ===== 工具类 ===== */
        .section-padding {
            padding: 72px 0;
        }

        @media (max-width: 640px) {
            .section-padding {
                padding: 48px 0;
            }
        }

        .text-center {
            text-align: center;
        }

        .mx-auto {
            margin-left: auto;
            margin-right: auto;
        }

        .flex-center {
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .gap-4 {
            gap: 16px;
        }
        .gap-6 {
            gap: 24px;
        }
        .mt-4 {
            margin-top: 16px;
        }
        .mt-8 {
            margin-top: 32px;
        }
        .mb-2 {
            margin-bottom: 8px;
        }
        .mb-4 {
            margin-bottom: 16px;
        }
        .mb-6 {
            margin-bottom: 24px;
        }
        .mb-8 {
            margin-bottom: 32px;
        }
        .mb-12 {
            margin-bottom: 48px;
        }
        .flex {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-wrap: wrap;
        }
        .flex-wrap {
            flex-wrap: wrap;
        }

        /* 浅色背景板块 */
        .bg-soft {
            background: #f1f5fe;
        }

        /* 分隔线装饰 */
        .divider {
            width: 60px;
            height: 4px;
            background: var(--primary);
            border-radius: 4px;
            margin: 0 auto 20px;
        }
        .divider-left {
            margin: 0 0 20px 0;
        }

        /* 平台介绍图文 */
        .intro-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            align-items: center;
        }

        .intro-grid .intro-text h2 {
            font-size: 2rem;
            font-weight: 800;
            letter-spacing: -0.4px;
            margin-bottom: 16px;
        }

        .intro-grid .intro-text p {
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 14px;
            font-size: 1rem;
        }

        .intro-grid .intro-visual {
            background: linear-gradient(145deg, #e6edfe, #dbe5fd);
            border-radius: var(--radius);
            padding: 40px 32px;
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            justify-content: center;
            min-height: 260px;
            align-items: center;
        }

        .intro-stat {
            background: #fff;
            border-radius: 16px;
            padding: 24px 28px;
            box-shadow: 0 6px 24px rgba(0, 0, 0, 0.04);
            text-align: center;
            min-width: 130px;
        }

        .intro-stat .num {
            font-size: 2rem;
            font-weight: 800;
            color: var(--primary);
        }

        .intro-stat .label {
            font-size: 0.85rem;
            color: var(--text-secondary);
            margin-top: 4px;
        }

        @media (max-width: 768px) {
            .intro-grid {
                grid-template-columns: 1fr;
                gap: 30px;
                text-align: center;
            }
            .intro-grid .intro-text h2 {
                font-size: 1.6rem;
            }
            .intro-stat {
                min-width: 110px;
                padding: 18px 16px;
            }
            .intro-stat .num {
                font-size: 1.6rem;
            }
            .divider-left {
                margin: 0 auto 20px;
            }
        }

        @media (max-width: 480px) {
            .intro-grid .intro-visual {
                padding: 24px 16px;
                gap: 14px;
            }
            .intro-stat {
                min-width: 90px;
                padding: 14px 12px;
            }
            .intro-stat .num {
                font-size: 1.3rem;
            }
        }

        /* ===== 分类标签导航 ===== */
        .category-tabs {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            justify-content: center;
            margin-bottom: 40px;
        }

        .category-tabs a {
            padding: 10px 24px;
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: 40px;
            font-weight: 500;
            font-size: 0.95rem;
            color: var(--text-secondary);
            transition: all var(--transition);
        }

        .category-tabs a:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: rgba(37, 99, 235, 0.04);
        }

        .category-tabs a.active-tab {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            box-shadow: 0 4px 16px rgba(37, 99, 235, 0.25);
        }

        /* ===== 内容列表 ===== */
        .content-list {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
        }

        .content-card {
            background: var(--bg-card);
            border-radius: var(--radius-sm);
            padding: 28px 26px;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-card);
            transition: transform var(--transition), box-shadow var(--transition);
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .content-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-card-hover);
        }

        .content-card .tag {
            align-self: flex-start;
        }

        .content-card h3 {
            font-size: 1.15rem;
            font-weight: 700;
            line-height: 1.4;
        }

        .content-card p {
            color: var(--text-secondary);
            font-size: 0.92rem;
            line-height: 1.6;
            flex: 1;
        }

        .content-card .meta {
            font-size: 0.82rem;
            color: var(--text-muted);
            margin-top: 8px;
        }

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

/* roulang page: article */
:root {
            --primary: #2563eb;
            --primary-dark: #1d4ed8;
            --primary-light: #3b82f6;
            --secondary: #0f172a;
            --accent: #f59e0b;
            --bg-body: #f8fafc;
            --bg-card: #ffffff;
            --text-main: #1e293b;
            --text-muted: #64748b;
            --text-light: #94a3b8;
            --border: #e2e8f0;
            --radius: 16px;
            --radius-sm: 10px;
            --radius-lg: 24px;
            --shadow-sm: 0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
            --shadow: 0 4px 20px rgba(0,0,0,0.08);
            --shadow-lg: 0 12px 40px rgba(0,0,0,0.12);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
        }
        * { margin: 0; padding: 0; box-sizing: border-box; }
        body { font-family: var(--font-sans); color: var(--text-main); background: var(--bg-body); line-height: 1.7; -webkit-font-smoothing: antialiased; }
        a { color: var(--primary); text-decoration: none; transition: var(--transition); }
        a:hover { color: var(--primary-dark); }
        img { max-width: 100%; height: auto; border-radius: var(--radius-sm); }
        .container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
        @media (max-width: 768px) { .container { padding: 0 16px; } }
        
        /* navbar */
        .navbar { background: rgba(255,255,255,0.95); backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px); border-bottom: 1px solid var(--border); position: sticky; top: 0; z-index: 100; }
        .navbar-inner { max-width: 1200px; margin: 0 auto; display: flex; align-items: center; justify-content: space-between; padding: 0 24px; height: 72px; }
        .navbar-logo { display: flex; align-items: center; gap: 10px; font-size: 1.35rem; font-weight: 700; color: var(--secondary); letter-spacing: -0.02em; }
        .navbar-logo:hover { color: var(--primary); }
        .logo-icon { display: inline-flex; align-items: center; justify-content: center; width: 36px; height: 36px; background: var(--primary); color: #fff; border-radius: 10px; font-size: 1.2rem; font-weight: 800; flex-shrink: 0; }
        .navbar-links { display: flex; list-style: none; gap: 4px; align-items: center; }
        .navbar-links li a { display: block; padding: 8px 18px; border-radius: 10px; font-size: 0.9rem; font-weight: 500; color: var(--text-muted); transition: var(--transition); position: relative; }
        .navbar-links li a:hover { color: var(--primary); background: rgba(37,99,235,0.06); }
        .navbar-links li a.active { color: var(--primary); background: rgba(37,99,235,0.1); font-weight: 600; }
        .navbar-toggle { display: none; flex-direction: column; gap: 5px; background: none; border: none; cursor: pointer; padding: 8px; border-radius: 8px; }
        .navbar-toggle span { display: block; width: 24px; height: 2.5px; background: var(--text-main); border-radius: 4px; transition: var(--transition); }
        @media (max-width: 768px) {
            .navbar-toggle { display: flex; }
            .navbar-links { position: fixed; top: 72px; left: 0; right: 0; background: rgba(255,255,255,0.98); backdrop-filter: blur(20px); flex-direction: column; padding: 16px 24px; gap: 4px; border-bottom: 1px solid var(--border); transform: translateY(-110%); opacity: 0; pointer-events: none; transition: var(--transition); box-shadow: var(--shadow); }
            .navbar-links.open { transform: translateY(0); opacity: 1; pointer-events: auto; }
            .navbar-links li a { padding: 12px 18px; font-size: 1rem; }
            .navbar-inner { padding: 0 16px; }
        }
        @media (max-width: 520px) {
            .navbar-logo { font-size: 1.1rem; }
            .logo-icon { width: 32px; height: 32px; font-size: 1rem; }
        }
        
        /* footer */
        .footer { background: var(--secondary); color: #cbd5e1; padding: 60px 0 0; margin-top: 80px; }
        .footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1fr; gap: 40px; padding-bottom: 40px; border-bottom: 1px solid rgba(255,255,255,0.08); }
        .footer-brand { display: flex; align-items: center; gap: 10px; font-size: 1.3rem; font-weight: 700; color: #fff; margin-bottom: 16px; }
        .footer-brand .logo-icon { background: rgba(255,255,255,0.15); color: #fff; }
        .footer-desc { font-size: 0.9rem; line-height: 1.7; color: #94a3b8; max-width: 320px; }
        .footer h4 { color: #fff; font-size: 0.95rem; font-weight: 600; margin-bottom: 16px; letter-spacing: 0.02em; }
        .footer-links { list-style: none; display: flex; flex-direction: column; gap: 10px; }
        .footer-links a { color: #94a3b8; font-size: 0.88rem; transition: var(--transition); }
        .footer-links a:hover { color: #fff; padding-left: 4px; }
        .footer-bottom { display: flex; justify-content: space-between; align-items: center; padding: 24px 0; font-size: 0.82rem; color: #64748b; flex-wrap: wrap; gap: 12px; }
        .footer-bottom a { color: #64748b; }
        .footer-bottom a:hover { color: #fff; }
        @media (max-width: 768px) {
            .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
            .footer { padding-top: 40px; }
        }
        @media (max-width: 520px) {
            .footer-grid { grid-template-columns: 1fr; gap: 28px; }
            .footer-bottom { flex-direction: column; text-align: center; }
        }
        
        /* article page */
        .article-hero { background: linear-gradient(135deg, #0f172a 0%, #1e293b 50%, #0f172a 100%); padding: 60px 0 50px; position: relative; overflow: hidden; }
        .article-hero::before { content: ''; position: absolute; top: -50%; right: -20%; width: 500px; height: 500px; background: radial-gradient(circle, rgba(37,99,235,0.15) 0%, transparent 70%); pointer-events: none; }
        .article-hero .container { position: relative; z-index: 1; }
        .article-breadcrumb { display: flex; align-items: center; gap: 8px; font-size: 0.85rem; color: #64748b; margin-bottom: 20px; flex-wrap: wrap; }
        .article-breadcrumb a { color: #94a3b8; }
        .article-breadcrumb a:hover { color: #fff; }
        .article-breadcrumb .sep { color: #475569; }
        .article-breadcrumb .current { color: #e2e8f0; }
        .article-hero h1 { font-size: 2.4rem; font-weight: 800; color: #fff; line-height: 1.25; margin-bottom: 16px; letter-spacing: -0.01em; max-width: 800px; }
        .article-meta { display: flex; align-items: center; gap: 20px; color: #94a3b8; font-size: 0.9rem; flex-wrap: wrap; }
        .article-meta .badge { display: inline-flex; align-items: center; gap: 6px; background: rgba(37,99,235,0.2); color: #93c5fd; padding: 4px 14px; border-radius: 20px; font-size: 0.8rem; font-weight: 500; }
        .article-meta .badge i { font-size: 0.7rem; }
        .article-meta span { display: flex; align-items: center; gap: 6px; }
        .article-meta i { font-size: 0.85rem; color: #64748b; }
        @media (max-width: 768px) {
            .article-hero { padding: 40px 0 32px; }
            .article-hero h1 { font-size: 1.6rem; }
        }
        @media (max-width: 520px) {
            .article-hero h1 { font-size: 1.3rem; }
            .article-meta { gap: 12px; font-size: 0.82rem; }
        }
        
        .article-main { padding: 48px 0 60px; }
        .article-layout { display: grid; grid-template-columns: 1fr 320px; gap: 48px; align-items: start; }
        .article-content { background: var(--bg-card); border-radius: var(--radius); box-shadow: var(--shadow-sm); padding: 40px; border: 1px solid var(--border); }
        .article-content .content-body { font-size: 1.05rem; line-height: 1.9; color: var(--text-main); }
        .article-content .content-body p { margin-bottom: 1.2em; }
        .article-content .content-body h2 { font-size: 1.5rem; font-weight: 700; margin: 1.6em 0 0.6em; color: var(--secondary); }
        .article-content .content-body h3 { font-size: 1.2rem; font-weight: 600; margin: 1.4em 0 0.5em; color: var(--secondary); }
        .article-content .content-body ul, .article-content .content-body ol { margin: 0.8em 0 1.2em; padding-left: 1.6em; }
        .article-content .content-body li { margin-bottom: 0.4em; }
        .article-content .content-body blockquote { border-left: 4px solid var(--primary); background: #f1f5f9; padding: 16px 24px; margin: 1.2em 0; border-radius: 0 var(--radius-sm) var(--radius-sm) 0; color: var(--text-muted); font-style: normal; }
        .article-content .content-body a { color: var(--primary); text-decoration: underline; text-underline-offset: 3px; }
        .article-content .content-body a:hover { color: var(--primary-dark); }
        .article-content .content-body img { border-radius: var(--radius-sm); margin: 1.2em 0; box-shadow: var(--shadow-sm); }
        .article-content .content-body code { background: #f1f5f9; padding: 2px 8px; border-radius: 4px; font-size: 0.9em; color: #0f172a; }
        .article-content .content-body pre { background: #0f172a; color: #e2e8f0; padding: 20px 24px; border-radius: var(--radius-sm); overflow-x: auto; margin: 1.2em 0; font-size: 0.9rem; line-height: 1.6; }
        .article-content .content-body pre code { background: none; padding: 0; color: inherit; }
        .article-notfound { text-align: center; padding: 80px 20px; }
        .article-notfound i { font-size: 3rem; color: var(--text-light); margin-bottom: 20px; display: block; }
        .article-notfound h2 { font-size: 1.6rem; font-weight: 700; margin-bottom: 12px; color: var(--text-main); }
        .article-notfound p { color: var(--text-muted); margin-bottom: 24px; }
        .article-notfound a { display: inline-flex; align-items: center; gap: 8px; padding: 12px 28px; background: var(--primary); color: #fff; border-radius: 10px; font-weight: 500; transition: var(--transition); }
        .article-notfound a:hover { background: var(--primary-dark); transform: translateY(-2px); box-shadow: var(--shadow); }
        @media (max-width: 768px) {
            .article-content { padding: 24px 20px; }
            .article-content .content-body { font-size: 1rem; }
        }
        
        .article-sidebar { display: flex; flex-direction: column; gap: 28px; }
        .sidebar-card { background: var(--bg-card); border-radius: var(--radius); box-shadow: var(--shadow-sm); padding: 24px; border: 1px solid var(--border); }
        .sidebar-card h3 { font-size: 1.05rem; font-weight: 700; color: var(--secondary); margin-bottom: 16px; padding-bottom: 12px; border-bottom: 2px solid var(--primary); display: flex; align-items: center; gap: 8px; }
        .sidebar-card h3 i { color: var(--primary); font-size: 0.9rem; }
        .sidebar-links { list-style: none; display: flex; flex-direction: column; gap: 2px; }
        .sidebar-links li a { display: flex; align-items: center; gap: 10px; padding: 10px 14px; border-radius: 8px; color: var(--text-main); font-size: 0.9rem; transition: var(--transition); }
        .sidebar-links li a:hover { background: rgba(37,99,235,0.06); color: var(--primary); padding-left: 20px; }
        .sidebar-links li a i { color: var(--text-light); font-size: 0.8rem; width: 18px; text-align: center; }
        .sidebar-tags { display: flex; flex-wrap: wrap; gap: 8px; }
        .sidebar-tags a { display: inline-block; padding: 6px 16px; border-radius: 20px; background: #f1f5f9; color: var(--text-muted); font-size: 0.82rem; font-weight: 500; transition: var(--transition); }
        .sidebar-tags a:hover { background: var(--primary); color: #fff; transform: translateY(-1px); }
        .sidebar-cta { background: linear-gradient(135deg, var(--primary) 0%, #1d4ed8 100%); color: #fff; border: none; text-align: center; padding: 28px 20px; }
        .sidebar-cta h3 { color: #fff; border-bottom-color: rgba(255,255,255,0.2); }
        .sidebar-cta h3 i { color: rgba(255,255,255,0.8); }
        .sidebar-cta p { font-size: 0.9rem; opacity: 0.9; margin-bottom: 20px; line-height: 1.6; }
        .sidebar-cta .btn-cta { display: inline-flex; align-items: center; gap: 8px; padding: 12px 28px; background: #fff; color: var(--primary); border-radius: 10px; font-weight: 600; font-size: 0.9rem; transition: var(--transition); }
        .sidebar-cta .btn-cta:hover { background: #f1f5f9; transform: translateY(-2px); box-shadow: 0 8px 30px rgba(0,0,0,0.2); color: var(--primary-dark); }
        @media (max-width: 1024px) {
            .article-layout { grid-template-columns: 1fr; gap: 32px; }
            .article-sidebar { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
        }
        @media (max-width: 640px) {
            .article-sidebar { grid-template-columns: 1fr; }
        }
        
        .article-nav { display: flex; justify-content: space-between; align-items: center; margin-top: 40px; padding-top: 24px; border-top: 1px solid var(--border); flex-wrap: wrap; gap: 16px; }
        .article-nav a { display: inline-flex; align-items: center; gap: 8px; padding: 10px 20px; border-radius: 10px; font-size: 0.9rem; font-weight: 500; transition: var(--transition); border: 1px solid var(--border); color: var(--text-main); }
        .article-nav a:hover { background: var(--primary); color: #fff; border-color: var(--primary); transform: translateY(-1px); box-shadow: var(--shadow-sm); }
        .article-nav a i { font-size: 0.8rem; }
        .article-nav .nav-back { background: #f1f5f9; border-color: transparent; }
        .article-nav .nav-back:hover { background: var(--primary); }
        @media (max-width: 520px) {
            .article-nav { flex-direction: column; align-items: stretch; }
            .article-nav a { justify-content: center; }
        }

/* roulang page: category2 */
:root {
            --primary: #4f46e5;
            --primary-dark: #4338ca;
            --primary-light: #818cf8;
            --secondary: #0ea5e9;
            --accent: #f59e0b;
            --bg-dark: #0b0f1a;
            --bg-section: #111827;
            --bg-card: #1e293b;
            --bg-card-hover: #273548;
            --text-white: #f1f5f9;
            --text-muted: #94a3b8;
            --text-dim: #64748b;
            --border-color: #334155;
            --radius: 12px;
            --radius-sm: 8px;
            --radius-lg: 20px;
            --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.45);
            --shadow-hover: 0 16px 48px rgba(79, 70, 229, 0.25);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
        }
        *,
        *::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-dark);
            color: var(--text-white);
            line-height: 1.7;
            min-height: 100vh;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: var(--transition);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
            transition: var(--transition);
        }
        button {
            cursor: pointer;
            background: none;
        }
        ul {
            list-style: none;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
        @media (max-width: 768px) {
            .container {
                padding: 0 16px;
            }
        }

        /* ===== NAVBAR ===== */
        .navbar {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(11, 15, 26, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid rgba(79, 70, 229, 0.15);
            padding: 0 24px;
            height: 70px;
            display: flex;
            align-items: center;
            transition: var(--transition);
        }
        .navbar-inner {
            max-width: 1200px;
            width: 100%;
            margin: 0 auto;
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }
        .navbar-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--text-white);
            letter-spacing: 0.5px;
            white-space: nowrap;
        }
        .navbar-logo .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            border-radius: 10px;
            font-size: 1.2rem;
            font-weight: 800;
            color: #fff;
            flex-shrink: 0;
            box-shadow: 0 4px 12px rgba(79, 70, 229, 0.35);
        }
        .navbar-logo:hover .logo-icon {
            transform: rotate(-5deg) scale(1.05);
        }
        .navbar-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 6px 4px;
            background: transparent;
            border: none;
            cursor: pointer;
            z-index: 1001;
        }
        .navbar-toggle span {
            display: block;
            width: 26px;
            height: 2.5px;
            background: var(--text-white);
            border-radius: 4px;
            transition: var(--transition);
        }
        .navbar-toggle.active span:nth-child(1) {
            transform: rotate(45deg) translate(5px, 5px);
        }
        .navbar-toggle.active span:nth-child(2) {
            opacity: 0;
        }
        .navbar-toggle.active span:nth-child(3) {
            transform: rotate(-45deg) translate(5px, -5px);
        }
        .navbar-links {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .navbar-links li a {
            display: block;
            padding: 8px 18px;
            border-radius: var(--radius-sm);
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-muted);
            transition: var(--transition);
            position: relative;
            letter-spacing: 0.3px;
        }
        .navbar-links li a:hover {
            color: var(--text-white);
            background: rgba(79, 70, 229, 0.12);
        }
        .navbar-links li a.active {
            color: #fff;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            box-shadow: 0 4px 16px rgba(79, 70, 229, 0.35);
        }
        .navbar-links li a.active:hover {
            box-shadow: 0 6px 24px rgba(79, 70, 229, 0.5);
            transform: translateY(-1px);
        }
        @media (max-width: 768px) {
            .navbar {
                padding: 0 16px;
                height: 64px;
            }
            .navbar-toggle {
                display: flex;
            }
            .navbar-links {
                position: fixed;
                top: 0;
                right: -100%;
                width: 280px;
                height: 100vh;
                background: rgba(15, 20, 35, 0.98);
                backdrop-filter: blur(20px);
                -webkit-backdrop-filter: blur(20px);
                flex-direction: column;
                align-items: stretch;
                padding: 80px 24px 40px;
                gap: 6px;
                border-left: 1px solid var(--border-color);
                transition: right 0.35s cubic-bezier(0.4, 0, 0.2, 1);
                box-shadow: -8px 0 40px rgba(0, 0, 0, 0.5);
                overflow-y: auto;
            }
            .navbar-links.open {
                right: 0;
            }
            .navbar-links li a {
                padding: 14px 20px;
                font-size: 1.05rem;
                border-radius: var(--radius-sm);
                text-align: center;
            }
            .navbar-links li a.active {
                background: linear-gradient(135deg, var(--primary), var(--secondary));
            }
        }

        /* ===== HERO ===== */
        .hero {
            padding: 140px 0 80px;
            background: linear-gradient(160deg, #0b0f1a 0%, #141b2d 40%, #1a1040 100%);
            position: relative;
            overflow: hidden;
        }
        .hero::before {
            content: '';
            position: absolute;
            top: -30%;
            right: -20%;
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(79, 70, 229, 0.15) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .hero::after {
            content: '';
            position: absolute;
            bottom: -20%;
            left: -10%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(14, 165, 233, 0.10) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .hero .container {
            position: relative;
            z-index: 1;
            display: flex;
            flex-direction: column;
            align-items: center;
            text-align: center;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 18px;
            background: rgba(79, 70, 229, 0.15);
            border: 1px solid rgba(79, 70, 229, 0.25);
            border-radius: 50px;
            font-size: 0.85rem;
            color: var(--primary-light);
            margin-bottom: 24px;
        }
        .hero-badge i {
            font-size: 0.75rem;
        }
        .hero h1 {
            font-size: clamp(2.2rem, 5.5vw, 4rem);
            font-weight: 800;
            line-height: 1.2;
            background: linear-gradient(135deg, #f1f5f9 0%, #818cf8 50%, #38bdf8 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            max-width: 900px;
            margin-bottom: 20px;
        }
        .hero p {
            font-size: 1.15rem;
            color: var(--text-muted);
            max-width: 680px;
            margin-bottom: 36px;
            line-height: 1.8;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            justify-content: center;
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 32px;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            color: #fff;
            font-weight: 600;
            font-size: 1rem;
            border-radius: 50px;
            box-shadow: 0 4px 20px rgba(79, 70, 229, 0.35);
            transition: var(--transition);
            border: none;
        }
        .btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 10px 36px rgba(79, 70, 229, 0.45);
        }
        .btn-secondary {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 32px;
            background: transparent;
            color: var(--text-white);
            font-weight: 600;
            font-size: 1rem;
            border-radius: 50px;
            border: 1.5px solid var(--border-color);
            transition: var(--transition);
        }
        .btn-secondary:hover {
            border-color: var(--primary-light);
            background: rgba(79, 70, 229, 0.08);
            transform: translateY(-3px);
        }
        @media (max-width: 768px) {
            .hero {
                padding: 110px 0 60px;
            }
            .hero p {
                font-size: 1rem;
            }
            .hero-actions {
                flex-direction: column;
                align-items: center;
            }
            .btn-primary,
            .btn-secondary {
                width: 100%;
                max-width: 320px;
                justify-content: center;
            }
        }

        /* ===== SECTION COMMON ===== */
        .section {
            padding: 80px 0;
        }
        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 4px 16px;
            background: rgba(79, 70, 229, 0.10);
            border: 1px solid rgba(79, 70, 229, 0.18);
            border-radius: 50px;
            font-size: 0.8rem;
            font-weight: 500;
            color: var(--primary-light);
            text-transform: uppercase;
            letter-spacing: 1px;
            margin-bottom: 16px;
        }
        .section-title {
            font-size: clamp(1.8rem, 3.5vw, 2.6rem);
            font-weight: 700;
            line-height: 1.25;
            margin-bottom: 16px;
            color: var(--text-white);
        }
        .section-sub {
            font-size: 1.05rem;
            color: var(--text-muted);
            max-width: 640px;
            line-height: 1.7;
        }
        .section-header {
            text-align: center;
            margin-bottom: 52px;
        }
        .section-header .section-sub {
            margin: 0 auto;
        }
        .bg-section-alt {
            background: var(--bg-section);
        }
        @media (max-width: 768px) {
            .section {
                padding: 56px 0;
            }
            .section-header {
                margin-bottom: 36px;
            }
        }

        /* ===== CARDS ===== */
        .card {
            background: var(--bg-card);
            border-radius: var(--radius);
            border: 1px solid var(--border-color);
            padding: 28px 24px;
            transition: var(--transition);
            box-shadow: var(--shadow-card);
        }
        .card:hover {
            border-color: rgba(79, 70, 229, 0.3);
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
        }
        .card-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 24px;
        }
        .card-icon {
            width: 52px;
            height: 52px;
            border-radius: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            color: #fff;
            margin-bottom: 18px;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            box-shadow: 0 4px 16px rgba(79, 70, 229, 0.25);
        }
        .card h3 {
            font-size: 1.2rem;
            font-weight: 600;
            margin-bottom: 10px;
            color: var(--text-white);
        }
        .card p {
            font-size: 0.95rem;
            color: var(--text-muted);
            line-height: 1.7;
        }
        .card .card-tag {
            display: inline-block;
            padding: 2px 12px;
            background: rgba(79, 70, 229, 0.12);
            border-radius: 50px;
            font-size: 0.75rem;
            color: var(--primary-light);
            margin-top: 12px;
        }

        /* ===== GAME CARDS ===== */
        .game-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            border: 1px solid var(--border-color);
            overflow: hidden;
            transition: var(--transition);
            box-shadow: var(--shadow-card);
            display: flex;
            flex-direction: column;
        }
        .game-card:hover {
            border-color: rgba(79, 70, 229, 0.3);
            box-shadow: var(--shadow-hover);
            transform: translateY(-5px);
        }
        .game-card-cover {
            position: relative;
            aspect-ratio: 16/9;
            background: linear-gradient(145deg, #1e293b, #0f172a);
            display: flex;
            align-items: center;
            justify-content: center;
            overflow: hidden;
        }
        .game-card-cover .game-icon-big {
            font-size: 3.2rem;
            opacity: 0.6;
            color: var(--primary-light);
        }
        .game-card-cover .game-badge {
            position: absolute;
            top: 12px;
            left: 12px;
            padding: 4px 12px;
            background: rgba(0, 0, 0, 0.7);
            backdrop-filter: blur(4px);
            border-radius: 50px;
            font-size: 0.7rem;
            font-weight: 500;
            color: var(--accent);
            border: 1px solid rgba(245, 158, 11, 0.2);
        }
        .game-card-body {
            padding: 20px 20px 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .game-card-body h3 {
            font-size: 1.1rem;
            font-weight: 600;
            margin-bottom: 6px;
            color: var(--text-white);
        }
        .game-card-body .game-meta {
            font-size: 0.85rem;
            color: var(--text-dim);
            margin-bottom: 12px;
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .game-card-body .game-meta span {
            display: flex;
            align-items: center;
            gap: 4px;
        }
        .game-card-body .game-desc {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.6;
            flex: 1;
            margin-bottom: 16px;
        }
        .game-card-body .game-actions {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
        }
        .game-btn {
            padding: 8px 20px;
            border-radius: 50px;
            font-size: 0.85rem;
            font-weight: 600;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .game-btn-primary {
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            color: #fff;
            box-shadow: 0 4px 12px rgba(79, 70, 229, 0.3);
        }
        .game-btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(79, 70, 229, 0.4);
        }
        .game-btn-outline {
            background: transparent;
            color: var(--text-muted);
            border: 1px solid var(--border-color);
        }
        .game-btn-outline:hover {
            border-color: var(--primary-light);
            color: var(--text-white);
        }

        /* ===== CATEGORY TABS ===== */
        .category-tabs {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            justify-content: center;
            margin-bottom: 40px;
        }
        .category-tab {
            padding: 8px 22px;
            border-radius: 50px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-muted);
            background: rgba(30, 41, 59, 0.6);
            border: 1px solid var(--border-color);
            transition: var(--transition);
            cursor: pointer;
        }
        .category-tab:hover {
            border-color: rgba(79, 70, 229, 0.3);
            color: var(--text-white);
            background: rgba(79, 70, 229, 0.08);
        }
        .category-tab.active {
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            color: #fff;
            border-color: transparent;
            box-shadow: 0 4px 16px rgba(79, 70, 229, 0.3);
        }

        /* ===== NEWS / LIST ===== */
        .news-list {
            display: grid;
            gap: 20px;
        }
        .news-item {
            display: flex;
            gap: 20px;
            padding: 20px 24px;
            background: var(--bg-card);
            border-radius: var(--radius);
            border: 1px solid var(--border-color);
            transition: var(--transition);
            align-items: flex-start;
        }
        .news-item:hover {
            border-color: rgba(79, 70, 229, 0.2);
            box-shadow: var(--shadow-card);
            transform: translateX(4px);
        }
        .news-item .news-icon {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            background: rgba(79, 70, 229, 0.12);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            color: var(--primary-light);
            flex-shrink: 0;
        }
        .news-item .news-content {
            flex: 1;
        }
        .news-item .news-content h4 {
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-white);
            margin-bottom: 4px;
        }
        .news-item .news-content p {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.6;
        }
        .news-item .news-content .news-meta {
            font-size: 0.8rem;
            color: var(--text-dim);
            margin-top: 8px;
            display: flex;
            align-items: center;
            gap: 12px;
        }
        @media (max-width: 640px) {
            .news-item {
                flex-direction: column;
                padding: 16px 18px;
                gap: 12px;
            }
            .news-item .news-icon {
                width: 40px;
                height: 40px;
                font-size: 1rem;
            }
        }

        /* ===== COMMUNITY ===== */
        .community-stats {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
            gap: 20px;
            margin-top: 32px;
        }
        .stat-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            border: 1px solid var(--border-color);
            padding: 24px 20px;
            text-align: center;
            transition: var(--transition);
        }
        .stat-card:hover {
            border-color: rgba(79, 70, 229, 0.2);
            box-shadow: var(--shadow-card);
            transform: translateY(-3px);
        }
        .stat-number {
            font-size: 2rem;
            font-weight: 800;
            background: linear-gradient(135deg, var(--primary-light), var(--secondary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .stat-label {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-top: 4px;
        }

        /* ===== FAQ ===== */
        .faq-grid {
            display: grid;
            gap: 16px;
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--bg-card);
            border-radius: var(--radius-sm);
            border: 1px solid var(--border-color);
            padding: 20px 24px;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: rgba(79, 70, 229, 0.2);
        }
        .faq-question {
            font-weight: 600;
            font-size: 1rem;
            color: var(--text-white);
            display: flex;
            align-items: center;
            gap: 12px;
            cursor: pointer;
        }
        .faq-question i {
            color: var(--primary-light);
            font-size: 0.9rem;
            transition: var(--transition);
        }
        .faq-answer {
            font-size: 0.95rem;
            color: var(--text-muted);
            line-height: 1.7;
            margin-top: 12px;
            padding-left: 28px;
            border-left: 2px solid rgba(79, 70, 229, 0.2);
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(160deg, #111827 0%, #1a1040 100%);
            border-top: 1px solid rgba(79, 70, 229, 0.15);
            border-bottom: 1px solid rgba(79, 70, 229, 0.15);
        }
        .cta-box {
            text-align: center;
            padding: 60px 20px;
        }
        .cta-box h2 {
            font-size: clamp(1.6rem, 3vw, 2.4rem);
            font-weight: 700;
            margin-bottom: 16px;
            color: var(--text-white);
        }
        .cta-box p {
            font-size: 1.05rem;
            color: var(--text-muted);
            max-width: 560px;
            margin: 0 auto 32px;
            line-height: 1.7;
        }
        .cta-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            justify-content: center;
        }

        /* ===== FOOTER ===== */
        .footer {
            background: #070b14;
            border-top: 1px solid var(--border-color);
            padding: 60px 0 30px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 14px;
        }
        .footer-brand .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            border-radius: 10px;
            font-size: 1.1rem;
            font-weight: 800;
            color: #fff;
            flex-shrink: 0;
        }
        .footer-desc {
            font-size: 0.9rem;
            color: var(--text-dim);
            line-height: 1.7;
            max-width: 360px;
        }
        .footer h4 {
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--text-white);
            margin-bottom: 16px;
        }
        .footer-links li {
            margin-bottom: 10px;
        }
        .footer-links li a {
            font-size: 0.9rem;
            color: var(--text-dim);
            transition: var(--transition);
        }
        .footer-links li a:hover {
            color: var(--primary-light);
            padding-left: 4px;
        }
        .footer-bottom {
            border-top: 1px solid var(--border-color);
            padding-top: 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 0.85rem;
            color: var(--text-dim);
        }
        .footer-bottom a {
            color: var(--text-dim);
        }
        .footer-bottom a:hover {
            color: var(--primary-light);
        }
        @media (max-width: 900px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 30px;
            }
        }
        @media (max-width: 640px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

        /* ===== SCROLLBAR ===== */
        ::-webkit-scrollbar {
            width: 6px;
        }
        ::-webkit-scrollbar-track {
            background: var(--bg-dark);
        }
        ::-webkit-scrollbar-thumb {
            background: var(--border-color);
            border-radius: 10px;
        }
        ::-webkit-scrollbar-thumb:hover {
            background: var(--text-dim);
        }

        /* ===== MISC ===== */
        .text-gradient {
            background: linear-gradient(135deg, #818cf8, #38bdf8);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .gap-section {
            height: 2px;
            background: linear-gradient(90deg, transparent, rgba(79, 70, 229, 0.15), transparent);
            margin: 0;
        }
        .fade-in {
            opacity: 0;
            transform: translateY(20px);
            animation: fadeUp 0.6s ease forwards;
        }
        @keyframes fadeUp {
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        .fade-in-delay-1 {
            animation-delay: 0.1s;
        }
        .fade-in-delay-2 {
            animation-delay: 0.2s;
        }
        .fade-in-delay-3 {
            animation-delay: 0.3s;
        }
        .fade-in-delay-4 {
            animation-delay: 0.4s;
        }

/* roulang page: category3 */
/* ===== 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;
            --bg-body: #f8fafc;
            --bg-card: #ffffff;
            --bg-dark: #0f172a;
            --text-primary: #0f172a;
            --text-secondary: #475569;
            --text-muted: #94a3b8;
            --text-inverse: #ffffff;
            --border-color: #e2e8f0;
            --border-light: #f1f5f9;
            --radius: 16px;
            --radius-sm: 10px;
            --radius-xs: 6px;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06), 0 1px 2px rgba(0, 0, 0, 0.04);
            --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.12);
            --shadow-xl: 0 24px 60px rgba(0, 0, 0, 0.15);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Inter', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', system-ui, sans-serif;
        }

        /* ===== 基础 Reset ===== */
        *,
        *::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-body);
            color: var(--text-primary);
            line-height: 1.7;
            font-size: 16px;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: var(--transition);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        textarea {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
            background: none;
        }
        button {
            cursor: pointer;
        }
        ul,
        ol {
            list-style: none;
        }

        /* ===== 容器 ===== */
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ===== 导航 ===== */
        .navbar {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-color);
            transition: var(--transition);
        }
        .navbar-inner {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
        }
        .navbar-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: -0.3px;
            transition: var(--transition);
        }
        .navbar-logo:hover {
            color: var(--primary-dark);
        }
        .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            background: var(--primary);
            color: #fff;
            border-radius: 10px;
            font-size: 1.2rem;
            font-weight: 700;
            flex-shrink: 0;
        }
        .navbar-links {
            display: flex;
            align-items: center;
            gap: 4px;
        }
        .navbar-links li a {
            padding: 8px 18px;
            border-radius: var(--radius-xs);
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-secondary);
            transition: var(--transition);
            position: relative;
        }
        .navbar-links li a:hover {
            color: var(--primary);
            background: var(--primary-bg);
        }
        .navbar-links li a.active {
            color: var(--primary);
            background: var(--primary-bg);
            font-weight: 600;
        }
        .navbar-links li a.active::after {
            content: '';
            position: absolute;
            bottom: 4px;
            left: 50%;
            transform: translateX(-50%);
            width: 24px;
            height: 3px;
            background: var(--primary);
            border-radius: 2px;
        }
        .navbar-toggle {
            display: none;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            width: 40px;
            height: 40px;
            border-radius: 10px;
            background: var(--bg-body);
            gap: 5px;
            padding: 8px;
        }
        .navbar-toggle span {
            display: block;
            width: 22px;
            height: 2.5px;
            background: var(--text-primary);
            border-radius: 2px;
            transition: var(--transition);
        }
        .navbar-toggle.active span:nth-child(1) {
            transform: rotate(45deg) translate(5px, 5px);
        }
        .navbar-toggle.active span:nth-child(2) {
            opacity: 0;
        }
        .navbar-toggle.active span:nth-child(3) {
            transform: rotate(-45deg) translate(5px, -5px);
        }

        /* ===== Hero ===== */
        .hero {
            padding: 80px 0 64px;
            background: linear-gradient(135deg, #eff6ff 0%, #dbeafe 50%, #e0e7ff 100%);
            position: relative;
            overflow: hidden;
        }
        .hero::before {
            content: '';
            position: absolute;
            top: -40%;
            right: -20%;
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(37, 99, 235, 0.08) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .hero::after {
            content: '';
            position: absolute;
            bottom: -30%;
            left: -10%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(245, 158, 11, 0.06) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .hero .container {
            position: relative;
            z-index: 1;
        }
        .hero-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(37, 99, 235, 0.12);
            color: var(--primary);
            padding: 6px 16px;
            border-radius: 50px;
            font-size: 0.85rem;
            font-weight: 600;
            margin-bottom: 20px;
            letter-spacing: 0.3px;
        }
        .hero-tag i {
            font-size: 0.75rem;
        }
        .hero h1 {
            font-size: 3rem;
            font-weight: 800;
            line-height: 1.2;
            color: var(--secondary);
            max-width: 720px;
            margin-bottom: 20px;
            letter-spacing: -0.5px;
        }
        .hero h1 span {
            color: var(--primary);
        }
        .hero p {
            font-size: 1.15rem;
            color: var(--text-secondary);
            max-width: 600px;
            margin-bottom: 32px;
            line-height: 1.8;
        }
        .hero-buttons {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 32px;
            background: var(--primary);
            color: #fff;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 1rem;
            transition: var(--transition);
            box-shadow: 0 4px 14px rgba(37, 99, 235, 0.35);
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(37, 99, 235, 0.4);
        }
        .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 32px;
            background: transparent;
            color: var(--primary);
            border: 2px solid var(--primary);
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 1rem;
            transition: var(--transition);
        }
        .btn-outline:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(37, 99, 235, 0.25);
        }
        .hero-stats {
            display: flex;
            gap: 40px;
            margin-top: 48px;
            padding-top: 32px;
            border-top: 1px solid rgba(37, 99, 235, 0.15);
        }
        .hero-stat h3 {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--secondary);
            line-height: 1.2;
        }
        .hero-stat h3 span {
            color: var(--primary);
        }
        .hero-stat p {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-bottom: 0;
        }

        /* ===== 板块通用 ===== */
        .section {
            padding: 72px 0;
        }
        .section-alt {
            background: var(--bg-card);
        }
        .section-dark {
            background: var(--bg-dark);
            color: var(--text-inverse);
        }
        .section-header {
            text-align: center;
            margin-bottom: 52px;
        }
        .section-header h2 {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--secondary);
            letter-spacing: -0.3px;
            margin-bottom: 14px;
        }
        .section-header p {
            font-size: 1.1rem;
            color: var(--text-secondary);
            max-width: 600px;
            margin: 0 auto;
        }
        .section-dark .section-header h2 {
            color: #fff;
        }
        .section-dark .section-header p {
            color: #cbd5e1;
        }
        .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--primary-bg);
            color: var(--primary);
            padding: 6px 18px;
            border-radius: 50px;
            font-size: 0.8rem;
            font-weight: 600;
            margin-bottom: 14px;
            letter-spacing: 0.5px;
        }
        .section-dark .section-tag {
            background: rgba(59, 130, 246, 0.2);
            color: #93c5fd;
        }

        /* ===== 卡片 ===== */
        .card {
            background: var(--bg-card);
            border-radius: var(--radius);
            box-shadow: var(--shadow-sm);
            padding: 28px 24px;
            transition: var(--transition);
            border: 1px solid var(--border-light);
        }
        .card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
            border-color: var(--border-color);
        }
        .card-icon {
            width: 52px;
            height: 52px;
            border-radius: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            color: #fff;
            margin-bottom: 18px;
            background: var(--primary);
        }
        .card h3 {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--secondary);
        }
        .card p {
            font-size: 0.95rem;
            color: var(--text-secondary);
            line-height: 1.7;
        }
        .card-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-top: 16px;
        }
        .card-tag {
            display: inline-block;
            padding: 4px 14px;
            background: var(--primary-bg);
            color: var(--primary);
            border-radius: 50px;
            font-size: 0.78rem;
            font-weight: 500;
        }

        /* ===== 游戏卡片（特色） ===== */
        .game-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            transition: var(--transition);
            border: 1px solid var(--border-light);
        }
        .game-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
        }
        .game-card-img {
            height: 180px;
            background: linear-gradient(135deg, #dbeafe, #e0e7ff);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 3rem;
            color: var(--primary);
            position: relative;
        }
        .game-card-img .badge {
            position: absolute;
            top: 12px;
            left: 12px;
            background: var(--accent);
            color: #fff;
            font-size: 0.7rem;
            font-weight: 700;
            padding: 4px 12px;
            border-radius: 50px;
            letter-spacing: 0.3px;
        }
        .game-card-body {
            padding: 20px 20px 24px;
        }
        .game-card-body h3 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--secondary);
            margin-bottom: 6px;
        }
        .game-card-body .meta {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-bottom: 12px;
        }
        .game-card-body p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 14px;
        }
        .game-card-body .btn-sm {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 20px;
            background: var(--primary);
            color: #fff;
            border-radius: var(--radius-xs);
            font-size: 0.85rem;
            font-weight: 600;
            transition: var(--transition);
        }
        .game-card-body .btn-sm:hover {
            background: var(--primary-dark);
        }

        /* ===== 网格 ===== */
        .grid-3 {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .grid-4 {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .grid-2 {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 28px;
        }

        /* ===== 列表条目 ===== */
        .list-item {
            display: flex;
            gap: 18px;
            padding: 20px 0;
            border-bottom: 1px solid var(--border-light);
        }
        .list-item:last-child {
            border-bottom: none;
        }
        .list-item .num {
            flex-shrink: 0;
            width: 40px;
            height: 40px;
            border-radius: 12px;
            background: var(--primary-bg);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 1.1rem;
        }
        .list-item .content h4 {
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--secondary);
            margin-bottom: 4px;
        }
        .list-item .content p {
            font-size: 0.9rem;
            color: var(--text-secondary);
        }

        /* ===== FAQ ===== */
        .faq-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
        }
        .faq-item {
            background: var(--bg-card);
            border-radius: var(--radius-sm);
            padding: 24px 24px 26px;
            border: 1px solid var(--border-light);
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: var(--border-color);
            box-shadow: var(--shadow-sm);
        }
        .faq-item h4 {
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--secondary);
            margin-bottom: 10px;
            display: flex;
            align-items: flex-start;
            gap: 10px;
        }
        .faq-item h4 i {
            color: var(--primary);
            font-size: 0.9rem;
            margin-top: 4px;
            flex-shrink: 0;
        }
        .faq-item p {
            font-size: 0.92rem;
            color: var(--text-secondary);
            line-height: 1.7;
            padding-left: 24px;
        }

        /* ===== CTA ===== */
        .cta-section {
            padding: 72px 0;
            background: linear-gradient(135deg, #1e3a5f 0%, #0f172a 100%);
            color: #fff;
            text-align: center;
        }
        .cta-section h2 {
            font-size: 2.4rem;
            font-weight: 800;
            margin-bottom: 16px;
            letter-spacing: -0.3px;
        }
        .cta-section p {
            font-size: 1.1rem;
            color: #cbd5e1;
            max-width: 540px;
            margin: 0 auto 32px;
        }
        .cta-section .btn-primary {
            background: #fff;
            color: var(--primary);
            box-shadow: 0 4px 20px rgba(255, 255, 255, 0.2);
        }
        .cta-section .btn-primary:hover {
            background: #f1f5f9;
            transform: translateY(-2px);
            box-shadow: 0 8px 30px rgba(255, 255, 255, 0.3);
        }
        .cta-section .btn-outline {
            border-color: rgba(255, 255, 255, 0.5);
            color: #fff;
        }
        .cta-section .btn-outline:hover {
            background: rgba(255, 255, 255, 0.12);
            border-color: #fff;
        }

        /* ===== 页脚 ===== */
        .footer {
            background: var(--secondary);
            color: #cbd5e1;
            padding: 60px 0 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 40px;
        }
        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.3rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 14px;
        }
        .footer-desc {
            font-size: 0.9rem;
            line-height: 1.8;
            color: #94a3b8;
            max-width: 320px;
        }
        .footer h4 {
            color: #fff;
            font-size: 0.95rem;
            font-weight: 600;
            margin-bottom: 18px;
            letter-spacing: 0.3px;
        }
        .footer-links li {
            margin-bottom: 10px;
        }
        .footer-links a {
            color: #94a3b8;
            font-size: 0.9rem;
            transition: var(--transition);
        }
        .footer-links a:hover {
            color: #fff;
            padding-left: 4px;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 24px 0;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 0.85rem;
            color: #64748b;
            flex-wrap: wrap;
            gap: 12px;
        }
        .footer-bottom a {
            color: #94a3b8;
        }
        .footer-bottom a:hover {
            color: #fff;
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .grid-4 {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
            .hero h1 {
                font-size: 2.4rem;
            }
        }

        @media (max-width: 768px) {
            .navbar-links {
                position: fixed;
                top: 72px;
                left: 0;
                width: 100%;
                background: rgba(255, 255, 255, 0.98);
                backdrop-filter: blur(20px);
                flex-direction: column;
                padding: 20px 24px 28px;
                gap: 4px;
                box-shadow: 0 20px 40px rgba(0, 0, 0, 0.08);
                transform: translateY(-120%);
                opacity: 0;
                transition: var(--transition);
                border-bottom: 1px solid var(--border-color);
                z-index: 999;
            }
            .navbar-links.open {
                transform: translateY(0);
                opacity: 1;
            }
            .navbar-links li a {
                padding: 12px 16px;
                width: 100%;
                border-radius: var(--radius-xs);
                font-size: 1rem;
            }
            .navbar-links li a.active::after {
                display: none;
            }
            .navbar-links li a.active {
                background: var(--primary-bg);
                color: var(--primary);
            }
            .navbar-toggle {
                display: flex;
            }
            .hero {
                padding: 56px 0 48px;
            }
            .hero h1 {
                font-size: 2rem;
            }
            .hero p {
                font-size: 1rem;
            }
            .hero-stats {
                gap: 24px;
                flex-wrap: wrap;
            }
            .hero-stat h3 {
                font-size: 1.4rem;
            }
            .section {
                padding: 48px 0;
            }
            .section-header h2 {
                font-size: 1.7rem;
            }
            .grid-3,
            .grid-2,
            .faq-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .grid-4 {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }
            .cta-section h2 {
                font-size: 1.8rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .navbar-inner {
                padding: 0 16px;
                height: 64px;
            }
            .navbar-logo {
                font-size: 1.1rem;
            }
            .logo-icon {
                width: 30px;
                height: 30px;
                font-size: 1rem;
            }
            .hero h1 {
                font-size: 1.6rem;
            }
            .hero-buttons .btn-primary,
            .hero-buttons .btn-outline {
                padding: 12px 22px;
                font-size: 0.9rem;
            }
            .grid-4 {
                grid-template-columns: 1fr;
            }
            .section-header h2 {
                font-size: 1.4rem;
            }
            .game-card-img {
                height: 140px;
                font-size: 2.4rem;
            }
            .faq-item h4 {
                font-size: 0.95rem;
            }
            .faq-item p {
                font-size: 0.85rem;
                padding-left: 0;
            }
            .cta-section h2 {
                font-size: 1.5rem;
            }
            .cta-section p {
                font-size: 0.95rem;
            }
        }

        /* ===== 工具类补充 ===== */
        .text-gradient {
            background: linear-gradient(135deg, var(--primary), #7c3aed);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .gap-2 {
            gap: 8px;
        }
        .gap-3 {
            gap: 12px;
        }
        .mt-2 {
            margin-top: 8px;
        }
        .mt-3 {
            margin-top: 12px;
        }
        .mt-4 {
            margin-top: 16px;
        }
        .mb-2 {
            margin-bottom: 8px;
        }
        .mb-3 {
            margin-bottom: 12px;
        }
        .mb-4 {
            margin-bottom: 16px;
        }
        .flex-wrap {
            display: flex;
            flex-wrap: wrap;
        }
        .items-center {
            display: flex;
            align-items: center;
        }
        .justify-center {
            display: flex;
            justify-content: center;
        }
        .text-center {
            text-align: center;
        }
        .w-full {
            width: 100%;
        }

        /* 游戏中心特有装饰 */
        .game-gradient-1 {
            background: linear-gradient(135deg, #dbeafe, #ede9fe);
        }
        .game-gradient-2 {
            background: linear-gradient(135deg, #fce7f3, #ffe4e6);
        }
        .game-gradient-3 {
            background: linear-gradient(135deg, #d1fae5, #a7f3d0);
        }
        .game-gradient-4 {
            background: linear-gradient(135deg, #fef3c7, #fde68a);
        }
        .game-gradient-5 {
            background: linear-gradient(135deg, #e0e7ff, #c7d2fe);
        }
        .game-gradient-6 {
            background: linear-gradient(135deg, #fce7f3, #fbcfe8);
        }