/* roulang page: index */
:root {
            --primary: #0F172A;
            --primary-light: #1E293B;
            --accent: #2563EB;
            --accent-hover: #1D4ED8;
            --purple: #7C3AED;
            --green: #10B981;
            --orange: #F59E0B;
            --bg-main: #F8FAFC;
            --bg-white: #FFFFFF;
            --bg-dark: #090D16;
            --text-dark: #0F172A;
            --text-body: #334155;
            --text-muted: #64748B;
            --text-light: #F1F5F9;
            --border: rgba(226, 232, 240, 0.9);
            --border-dark: rgba(255, 255, 255, 0.1);
            --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
            --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.07), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
            --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -4px rgba(0, 0, 0, 0.04);
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-full: 9999px;
            --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
            --container-max: 1200px;
        }

        /* Reset & Base */
        *, *::before, *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            background-color: var(--bg-main);
            color: var(--text-body);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: var(--transition);
        }
        button, input, select, textarea {
            font-family: inherit;
            font-size: inherit;
        }

        .container {
            width: 100%;
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px;
        }

        /* Typography & Utilities */
        .sec-head {
            text-align: center;
            max-width: 780px;
            margin: 0 auto 50px;
        }
        .sec-head .tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 4px 12px;
            background: rgba(37, 99, 235, 0.1);
            color: var(--accent);
            font-size: 0.85rem;
            font-weight: 600;
            border-radius: var(--radius-full);
            margin-bottom: 12px;
            letter-spacing: 0.5px;
        }
        .sec-head.dark .tag {
            background: rgba(37, 99, 235, 0.2);
            color: #60A5FA;
        }
        .sec-title {
            font-size: 2.1rem;
            font-weight: 800;
            color: var(--text-dark);
            line-height: 1.3;
            margin-bottom: 14px;
            letter-spacing: -0.5px;
        }
        .sec-head.dark .sec-title {
            color: var(--bg-white);
        }
        .sec-desc {
            font-size: 1rem;
            color: var(--text-muted);
            line-height: 1.7;
        }
        .sec-head.dark .sec-desc {
            color: #94A3B8;
        }
        
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 26px;
            font-size: 0.95rem;
            font-weight: 600;
            border-radius: var(--radius-md);
            cursor: pointer;
            border: 1px solid transparent;
            transition: var(--transition);
            min-height: 46px;
        }
        .btn-primary {
            background-color: var(--accent);
            color: var(--bg-white);
            box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3);
        }
        .btn-primary:hover {
            background-color: var(--accent-hover);
            transform: translateY(-2px);
            box-shadow: 0 6px 16px rgba(37, 99, 235, 0.4);
        }
        .btn-outline {
            background-color: transparent;
            color: var(--text-dark);
            border-color: var(--border);
        }
        .btn-outline:hover {
            background-color: #F1F5F9;
            border-color: #CBD5E1;
            transform: translateY(-2px);
        }
        .btn-white {
            background-color: var(--bg-white);
            color: var(--accent);
        }
        .btn-white:hover {
            background-color: #F8FAFC;
            transform: translateY(-2px);
        }

        /* Top Utility Bar */
        .top-bar {
            background-color: var(--primary);
            color: #94A3B8;
            font-size: 0.8rem;
            border-bottom: 1px solid rgba(255,255,255,0.06);
            padding: 6px 0;
        }
        .top-bar-inner {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .top-bar-left span {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            margin-right: 20px;
        }
        .top-bar-right a {
            color: #94A3B8;
            margin-left: 16px;
        }
        .top-bar-right a:hover {
            color: var(--bg-white);
        }

        /* Main Header Navigation */
        .site-header {
            background-color: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(10px);
            border-bottom: 1px solid var(--border);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 70px;
        }
        .brand-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.35rem;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: -0.5px;
        }
        .brand-logo i {
            font-size: 1.5rem;
            color: var(--accent);
        }
        .nav-menu {
            display: flex;
            align-items: center;
            list-style: none;
            gap: 28px;
        }
        .nav-menu a {
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--text-body);
            position: relative;
            padding: 6px 0;
        }
        .nav-menu a:hover,
        .nav-menu a.active {
            color: var(--accent);
        }
        .nav-menu a.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 100%;
            height: 2px;
            background-color: var(--accent);
            border-radius: 2px;
        }
        .header-cta {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .mobile-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.4rem;
            color: var(--text-dark);
            cursor: pointer;
            padding: 8px;
        }

        /* 1. Hero Section (竖屏感主视觉 + 数据看板) */
        .hero-section {
            background: linear-gradient(135deg, #0F172A 0%, #1E293B 100%);
            color: var(--bg-white);
            padding: 80px 0 60px;
            position: relative;
            overflow: hidden;
        }
        .hero-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/b98196372bea3f2a.jpg') center/cover no-repeat;
            opacity: 0.12;
            mix-blend-mode: overlay;
        }
        .hero-grid {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 50px;
            align-items: center;
            position: relative;
            z-index: 2;
        }
        .hero-content h1 {
            font-size: 2.8rem;
            font-weight: 900;
            line-height: 1.2;
            margin-bottom: 20px;
            letter-spacing: -1px;
        }
        .hero-content h1 span {
            color: #60A5FA;
        }
        .hero-desc {
            font-size: 1.05rem;
            color: #94A3B8;
            line-height: 1.8;
            margin-bottom: 32px;
            max-width: 620px;
        }
        .hero-btns {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
            margin-bottom: 40px;
        }
        .hero-stats-bar {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
            padding-top: 24px;
            border-top: 1px solid rgba(255,255,255,0.1);
        }
        .hero-stat-item strong {
            display: block;
            font-size: 1.5rem;
            font-weight: 800;
            color: #38BDF8;
            font-family: monospace, sans-serif;
        }
        .hero-stat-item span {
            font-size: 0.8rem;
            color: #94A3B8;
        }

        /* Hero 竖屏微卡片展示 */
        .hero-vertical-card {
            background: rgba(30, 41, 59, 0.7);
            border: 1px solid rgba(255, 255, 255, 0.15);
            border-radius: var(--radius-lg);
            padding: 18px;
            backdrop-filter: blur(12px);
            box-shadow: 0 20px 40px rgba(0,0,0,0.4);
            max-width: 360px;
            margin: 0 auto;
        }
        .vertical-preview-box {
            position: relative;
            border-radius: var(--radius-md);
            overflow: hidden;
            aspect-ratio: 9 / 14;
            background-color: #000;
        }
        .vertical-preview-box img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            opacity: 0.85;
            transition: var(--transition);
        }
        .vertical-preview-box:hover img {
            transform: scale(1.04);
        }
        .vertical-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 40%, rgba(0,0,0,0.9) 100%);
            display: flex;
            flex-direction: column;
            justify-content: flex-end;
            padding: 20px;
        }
        .vertical-badge {
            align-self: flex-start;
            background: rgba(37, 99, 235, 0.9);
            color: #fff;
            font-size: 0.75rem;
            font-weight: 700;
            padding: 3px 8px;
            border-radius: 4px;
            margin-bottom: 8px;
        }
        .vertical-title {
            font-size: 1.15rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 4px;
        }
        .vertical-meta {
            font-size: 0.8rem;
            color: #CBD5E1;
            display: flex;
            align-items: center;
            gap: 12px;
        }

        /* 2. 痛点剖析区 (Pain Points) */
        .pain-section {
            padding: 80px 0;
            background-color: var(--bg-white);
        }
        .pain-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .pain-card {
            background: #FEF2F2;
            border: 1px solid #FEE2E2;
            padding: 28px 24px;
            border-radius: var(--radius-md);
            transition: var(--transition);
        }
        .pain-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }
        .pain-icon {
            width: 44px;
            height: 44px;
            border-radius: 8px;
            background: #EF4444;
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            margin-bottom: 16px;
        }
        .pain-card h3 {
            font-size: 1.15rem;
            font-weight: 700;
            color: #991B1B;
            margin-bottom: 10px;
        }
        .pain-card p {
            font-size: 0.9rem;
            color: #7F1D1D;
            line-height: 1.6;
        }

        /* 3. 架构与解决方案区 (Architecture Solutions) */
        .solution-section {
            padding: 90px 0;
            background-color: var(--bg-main);
        }
        .solution-box {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 40px;
            box-shadow: var(--shadow-sm);
        }
        .solution-img-wrap {
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-md);
        }
        .solution-list {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 16px;
            margin-top: 24px;
        }
        .solution-item {
            display: flex;
            gap: 14px;
            align-items: flex-start;
        }
        .solution-item i {
            color: var(--green);
            font-size: 1.2rem;
            margin-top: 3px;
        }
        .solution-item h4 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 2px;
        }
        .solution-item p {
            font-size: 0.88rem;
            color: var(--text-muted);
            line-height: 1.5;
        }

        /* 4. 核心优势矩阵区 (Service Matrix) */
        .matrix-section {
            padding: 90px 0;
            background-color: var(--bg-white);
        }
        .matrix-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .matrix-card {
            background: var(--bg-main);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 30px 24px;
            transition: var(--transition);
        }
        .matrix-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
            border-color: #BFDBFE;
            background: #fff;
        }
        .matrix-icon {
            width: 50px;
            height: 50px;
            border-radius: 12px;
            background: rgba(37, 99, 235, 0.1);
            color: var(--accent);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.35rem;
            margin-bottom: 20px;
        }
        .matrix-card h3 {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 10px;
        }
        .matrix-card p {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* 5. 热门手游产品分发 (Hot Games Showcase) */
        .games-section {
            padding: 90px 0;
            background-color: #F1F5F9;
        }
        .games-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .game-card {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }
        .game-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-lg);
        }
        .game-cover {
            position: relative;
            height: 180px;
            overflow: hidden;
            background: #1E293B;
        }
        .game-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition);
        }
        .game-card:hover .game-cover img {
            transform: scale(1.05);
        }
        .game-tag-float {
            position: absolute;
            top: 12px;
            right: 12px;
            background: rgba(15, 23, 42, 0.85);
            backdrop-filter: blur(4px);
            color: #fff;
            font-size: 0.75rem;
            padding: 3px 8px;
            border-radius: 4px;
        }
        .game-body {
            padding: 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .game-body h3 {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 6px;
        }
        .game-meta {
            font-size: 0.82rem;
            color: var(--text-muted);
            margin-bottom: 12px;
            display: flex;
            gap: 12px;
        }
        .game-desc {
            font-size: 0.88rem;
            color: var(--text-body);
            line-height: 1.6;
            margin-bottom: 20px;
            flex: 1;
        }
        .game-action {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding-top: 14px;
            border-top: 1px solid var(--border);
        }
        .game-downloads {
            font-size: 0.82rem;
            color: var(--text-muted);
        }
        .game-downloads i {
            color: var(--orange);
        }

        /* 6. 深色战略理念与技术底座 (Dark Tech Foundation) */
        .tech-dark-section {
            background-color: var(--bg-dark);
            color: var(--bg-white);
            padding: 100px 0;
            position: relative;
        }
        .tech-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            align-items: center;
        }
        .tech-info h2 {
            font-size: 2.2rem;
            font-weight: 800;
            line-height: 1.3;
            margin-bottom: 20px;
            color: #fff;
        }
        .tech-info p {
            font-size: 1rem;
            color: #94A3B8;
            line-height: 1.8;
            margin-bottom: 30px;
        }
        .tech-stats {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
        }
        .tech-stat-card {
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid var(--border-dark);
            padding: 20px;
            border-radius: var(--radius-md);
        }
        .tech-stat-card .num {
            font-size: 1.8rem;
            font-weight: 800;
            color: #38BDF8;
            font-family: monospace, sans-serif;
            margin-bottom: 4px;
        }
        .tech-stat-card .label {
            font-size: 0.85rem;
            color: #CBD5E1;
        }
        .tech-code-panel {
            background: #000;
            border: 1px solid rgba(255,255,255,0.15);
            border-radius: var(--radius-md);
            padding: 24px;
            font-family: monospace;
            font-size: 0.88rem;
            color: #A5B4FC;
            box-shadow: 0 10px 30px rgba(0,0,0,0.5);
        }
        .tech-code-panel .code-line {
            margin-bottom: 8px;
        }
        .code-keyword { color: #F472B6; }
        .code-string { color: #34D399; }
        .code-comment { color: #64748B; }

        /* 7. 效能对比区 (Comparison vs Traditional) */
        .compare-section {
            padding: 90px 0;
            background-color: var(--bg-white);
        }
        .compare-table-wrapper {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            overflow-x: auto;
            box-shadow: var(--shadow-sm);
        }
        .compare-table {
            width: 100%;
            border-collapse: collapse;
            text-align: left;
        }
        .compare-table th, .compare-table td {
            padding: 18px 24px;
            border-bottom: 1px solid var(--border);
            font-size: 0.95rem;
        }
        .compare-table th {
            background-color: #F8FAFC;
            font-weight: 700;
            color: var(--text-dark);
        }
        .compare-table td.highlight {
            color: var(--accent);
            font-weight: 700;
            background-color: rgba(37, 99, 235, 0.02);
        }
        .compare-table tr:last-child td {
            border-bottom: none;
        }

        /* 8. 里程碑时间线 (Milestone Timeline) */
        .milestone-section {
            padding: 90px 0;
            background-color: var(--bg-main);
        }
        .timeline {
            position: relative;
            max-width: 860px;
            margin: 0 auto;
        }
        .timeline::before {
            content: '';
            position: absolute;
            top: 0;
            bottom: 0;
            left: 50%;
            width: 2px;
            background: #CBD5E1;
            transform: translateX(-50%);
        }
        .timeline-item {
            position: relative;
            margin-bottom: 40px;
            width: 50%;
            padding: 0 30px;
        }
        .timeline-item:nth-child(odd) {
            left: 0;
            text-align: right;
        }
        .timeline-item:nth-child(even) {
            left: 50%;
            text-align: left;
        }
        .timeline-dot {
            position: absolute;
            top: 8px;
            width: 16px;
            height: 16px;
            background: var(--accent);
            border: 3px solid #fff;
            border-radius: 50%;
            box-shadow: 0 0 0 2px var(--accent);
            z-index: 2;
        }
        .timeline-item:nth-child(odd) .timeline-dot {
            right: -8px;
        }
        .timeline-item:nth-child(even) .timeline-dot {
            left: -8px;
        }
        .timeline-content {
            background: var(--bg-white);
            border: 1px solid var(--border);
            padding: 20px;
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
        }
        .timeline-date {
            font-size: 0.85rem;
            font-weight: 700;
            color: var(--accent);
            margin-bottom: 6px;
            font-family: monospace;
        }
        .timeline-content h4 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 6px;
        }
        .timeline-content p {
            font-size: 0.88rem;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* 9. 开发者与玩家用户故事 (Story Cards) */
        .stories-section {
            padding: 90px 0;
            background-color: var(--bg-white);
        }
        .stories-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 30px;
        }
        .story-card {
            background: var(--bg-main);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 30px;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }
        .story-quote {
            font-size: 0.95rem;
            color: var(--text-body);
            line-height: 1.8;
            margin-bottom: 24px;
            position: relative;
        }
        .story-author {
            display: flex;
            align-items: center;
            gap: 14px;
        }
        .story-avatar {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: #E2E8F0;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-muted);
            font-size: 1.2rem;
            overflow: hidden;
        }
        .story-avatar img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .story-name {
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--text-dark);
        }
        .story-role {
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        /* 10. 全宽紧凑数据条 (Metric Ticker) */
        .metric-ticker-section {
            background: linear-gradient(90deg, #1E293B 0%, #0F172A 100%);
            color: #fff;
            padding: 40px 0;
            border-top: 1px solid rgba(255,255,255,0.08);
            border-bottom: 1px solid rgba(255,255,255,0.08);
        }
        .ticker-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            text-align: center;
        }
        .ticker-item h3 {
            font-size: 2.2rem;
            font-weight: 800;
            color: #60A5FA;
            font-family: monospace, sans-serif;
            margin-bottom: 4px;
        }
        .ticker-item p {
            font-size: 0.88rem;
            color: #94A3B8;
        }

        /* 11. 资讯动态内嵌 (News Grid) */
        .news-section {
            padding: 90px 0;
            background-color: var(--bg-main);
        }
        .news-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .news-card {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--border);
            display: flex;
            flex-direction: column;
            transition: var(--transition);
        }
        .news-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }
        .news-thumb {
            height: 160px;
            background: #CBD5E1;
            overflow: hidden;
        }
        .news-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition);
        }
        .news-card:hover .news-thumb img {
            transform: scale(1.05);
        }
        .news-body {
            padding: 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .news-date {
            font-size: 0.78rem;
            color: var(--text-muted);
            margin-bottom: 8px;
        }
        .news-body h3 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 10px;
            line-height: 1.4;
        }
        .news-body p {
            font-size: 0.88rem;
            color: var(--text-body);
            line-height: 1.6;
            margin-bottom: 16px;
            flex: 1;
        }
        .news-link {
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--accent);
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        /* 12. 平台合规与安全保障体系 (Security & Badges) */
        .security-section {
            padding: 90px 0;
            background-color: var(--bg-white);
        }
        .security-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .security-card {
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 24px 20px;
            text-align: center;
            background: #FAF5FF;
            border-color: #E9D5FF;
            transition: var(--transition);
        }
        .security-card:hover {
            transform: translateY(-4px);
        }
        .security-card i {
            font-size: 2rem;
            color: var(--purple);
            margin-bottom: 14px;
        }
        .security-card h4 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 6px;
        }
        .security-card p {
            font-size: 0.82rem;
            color: var(--text-muted);
            line-height: 1.5;
        }

        /* 13. 常见问题解答区 (FAQ Accordion) */
        .faq-section {
            padding: 90px 0;
            background-color: var(--bg-main);
        }
        .faq-container {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 14px;
        }
        .faq-item {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item summary {
            padding: 18px 22px;
            font-size: 1rem;
            font-weight: 700;
            color: var(--text-dark);
            cursor: pointer;
            list-style: none;
            display: flex;
            justify-content: space-between;
            align-items: center;
            user-select: none;
        }
        .faq-item summary::-webkit-details-marker {
            display: none;
        }
        .faq-item summary i {
            color: var(--accent);
            transition: transform 0.3s ease;
        }
        .faq-item[open] summary i {
            transform: rotate(180deg);
        }
        .faq-content {
            padding: 0 22px 20px;
            font-size: 0.92rem;
            color: var(--text-muted);
            line-height: 1.7;
            border-top: 1px solid #F1F5F9;
            padding-top: 14px;
        }

        /* 14. 底部行动转化表单区 (CTA Block) */
        .cta-section {
            background: linear-gradient(135deg, #1E293B 0%, #0F172A 100%);
            color: #fff;
            padding: 90px 0;
            text-align: center;
        }
        .cta-box {
            max-width: 680px;
            margin: 0 auto;
        }
        .cta-box h2 {
            font-size: 2.2rem;
            font-weight: 800;
            margin-bottom: 14px;
        }
        .cta-box p {
            font-size: 1rem;
            color: #94A3B8;
            margin-bottom: 32px;
        }
        .cta-form {
            display: flex;
            gap: 10px;
            max-width: 520px;
            margin: 0 auto;
        }
        .cta-input {
            flex: 1;
            padding: 14px 18px;
            border-radius: var(--radius-md);
            border: 1px solid rgba(255,255,255,0.2);
            background: rgba(255,255,255,0.08);
            color: #fff;
            outline: none;
        }
        .cta-input::placeholder {
            color: #64748B;
        }
        .cta-input:focus {
            border-color: var(--accent);
            background: rgba(255,255,255,0.15);
        }

        /* 浮动吸底转化条 (Floating Bar) */
        .floating-cta-bar {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            background: rgba(15, 23, 42, 0.95);
            backdrop-filter: blur(8px);
            border-top: 1px solid rgba(255,255,255,0.1);
            padding: 12px 20px;
            z-index: 999;
            display: flex;
            align-items: center;
            justify-content: space-between;
            color: #fff;
            box-shadow: 0 -4px 20px rgba(0,0,0,0.2);
        }
        .floating-cta-text {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 0.92rem;
        }
        .floating-cta-text span {
            color: #38BDF8;
            font-weight: 700;
        }

        /* 页脚 Footer */
        .site-footer {
            background-color: #0B0F19;
            color: #64748B;
            padding: 70px 0 30px;
            font-size: 0.88rem;
            border-top: 1px solid rgba(255,255,255,0.05);
            margin-bottom: 60px; /* 留出浮动条空间 */
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
            gap: 40px;
            margin-bottom: 50px;
        }
        .footer-brand h3 {
            color: #fff;
            font-size: 1.25rem;
            margin-bottom: 14px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .footer-brand p {
            line-height: 1.7;
            margin-bottom: 16px;
        }
        .footer-col h4 {
            color: #fff;
            font-size: 0.95rem;
            margin-bottom: 18px;
            font-weight: 700;
        }
        .footer-links {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .footer-links a:hover {
            color: #fff;
        }
        .footer-bottom {
            padding-top: 30px;
            border-top: 1px solid rgba(255,255,255,0.05);
            text-align: center;
            font-size: 0.8rem;
            line-height: 1.8;
        }
        .footer-bottom a {
            color: #94A3B8;
        }

        /* 响应式断点适配 */
        @media (max-width: 1024px) {
            .hero-grid { grid-template-columns: 1fr; gap: 40px; text-align: center; }
            .hero-desc { margin: 0 auto 32px; }
            .hero-btns { justify-content: center; }
            .hero-stats-bar { max-width: 600px; margin: 0 auto; }
            .solution-box { grid-template-columns: 1fr; }
            .tech-grid { grid-template-columns: 1fr; }
            .matrix-grid, .pain-grid, .games-grid, .news-grid { grid-template-columns: repeat(2, 1fr); }
            .security-grid { grid-template-columns: repeat(2, 1fr); }
            .footer-grid { grid-template-columns: 1fr 1fr; }
        }

        @media (max-width: 768px) {
            .top-bar { display: none; }
            .mobile-toggle { display: block; }
            .nav-menu {
                position: absolute;
                top: 70px;
                left: 0;
                right: 0;
                background: #fff;
                flex-direction: column;
                padding: 24px;
                gap: 16px;
                border-bottom: 1px solid var(--border);
                box-shadow: var(--shadow-md);
                display: none;
            }
            .nav-menu.show { display: flex; }
            .header-cta { display: none; }
            .hero-content h1 { font-size: 2.1rem; }
            .sec-title { font-size: 1.7rem; }
            .matrix-grid, .pain-grid, .games-grid, .news-grid, .stories-grid, .security-grid { grid-template-columns: 1fr; }
            .timeline::before { left: 20px; }
            .timeline-item { width: 100%; padding-left: 50px; text-align: left !important; }
            .timeline-item:nth-child(even) { left: 0; }
            .timeline-dot { left: 12px !important; right: auto !important; }
            .ticker-grid { grid-template-columns: 1fr 1fr; }
            .cta-form { flex-direction: column; }
            .floating-cta-bar { flex-direction: column; gap: 8px; text-align: center; }
            .footer-grid { grid-template-columns: 1fr; }
        }