/* roulang page: index */
:root {
            --bg-base: #0B0E14;
            --bg-surface: #121824;
            --bg-elevated: #1A2234;
            --bg-darker: #07090E;
            --primary: #00F2A5;
            --primary-glow: rgba(0, 242, 165, 0.25);
            --primary-hover: #00d993;
            --secondary: #7042FF;
            --secondary-glow: rgba(112, 66, 255, 0.2);
            --text-main: #F8FAFC;
            --text-muted: #94A3B8;
            --text-faint: #64748B;
            --border-dim: #1E293B;
            --border-light: rgba(255, 255, 255, 0.1);
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-pill: 9999px;
            --shadow-card: 0 10px 30px -10px rgba(0, 242, 165, 0.08);
            --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
        }

        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            -webkit-tap-highlight-color: transparent;
        }

        html {
            scroll-behavior: smooth;
            font-size: 16px;
            background-color: var(--bg-base);
            color: var(--text-main);
        }

        body {
            font-family: var(--font-family);
            line-height: 1.75;
            overflow-x: hidden;
            background-color: var(--bg-base);
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: all 0.2s ease;
        }

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

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

        .container {
            width: 100%;
            max-width: 1240px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* 顶部通告条与主导航 */
        .header-wrap {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(11, 14, 20, 0.92);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-dim);
        }

        .top-bar {
            background: var(--bg-darker);
            border-bottom: 1px solid rgba(255, 255, 255, 0.05);
            font-size: 13px;
            color: var(--text-muted);
            padding: 6px 0;
        }

        .top-bar-inner {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .status-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .pulse-dot {
            width: 8px;
            height: 8px;
            background-color: var(--primary);
            border-radius: 50%;
            box-shadow: 0 0 8px var(--primary);
            animation: pulse 2s infinite;
        }

        @keyframes pulse {
            0% { transform: scale(0.95); opacity: 0.8; }
            50% { transform: scale(1.2); opacity: 1; }
            100% { transform: scale(0.95); opacity: 0.8; }
        }

        .main-nav {
            display: flex;
            justify-content: space-between;
            align-items: center;
            height: 72px;
        }

        .logo-box {
            display: flex;
            align-items: center;
            gap: 12px;
            font-weight: 700;
            font-size: 20px;
            letter-spacing: -0.5px;
            color: var(--text-main);
        }

        .logo-box i {
            font-size: 24px;
            color: var(--primary);
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 32px;
            list-style: none;
        }

        .nav-links a {
            color: var(--text-muted);
            font-size: 15px;
            font-weight: 500;
        }

        .nav-links a:hover {
            color: var(--primary);
        }

        .nav-cta-btn {
            background: var(--primary);
            color: var(--bg-darker);
            font-weight: 600;
            font-size: 14px;
            padding: 10px 22px;
            border-radius: var(--radius-sm);
            display: inline-flex;
            align-items: center;
            gap: 8px;
            box-shadow: 0 4px 14px var(--primary-glow);
        }

        .nav-cta-btn:hover {
            background: var(--primary-hover);
            transform: translateY(-1px);
        }

        .mobile-menu-btn {
            display: none;
            background: transparent;
            color: var(--text-main);
            font-size: 22px;
            cursor: pointer;
            padding: 8px;
        }

        /* 板块公用样式 */
        .section-block {
            padding: 88px 0;
            position: relative;
        }

        .section-alt {
            background-color: var(--bg-surface);
            border-top: 1px solid var(--border-dim);
            border-bottom: 1px solid var(--border-dim);
        }

        .section-deep {
            background-color: var(--bg-darker);
            border-top: 1px solid rgba(0, 242, 165, 0.15);
            border-bottom: 1px solid rgba(0, 242, 165, 0.15);
        }

        .section-header {
            text-align: center;
            max-width: 820px;
            margin: 0 auto 56px;
        }

        .section-tag {
            display: inline-block;
            background: rgba(0, 242, 165, 0.1);
            color: var(--primary);
            font-size: 13px;
            font-weight: 600;
            padding: 4px 14px;
            border-radius: var(--radius-pill);
            margin-bottom: 14px;
            letter-spacing: 0.5px;
            border: 1px solid rgba(0, 242, 165, 0.2);
        }

        .section-title {
            font-size: 32px;
            font-weight: 700;
            color: var(--text-main);
            line-height: 1.35;
            margin-bottom: 16px;
            letter-spacing: -0.5px;
        }

        .section-desc {
            font-size: 16px;
            color: var(--text-muted);
            line-height: 1.8;
            margin: 0 auto;
        }

        /* 1. Hero 促销主视觉区 */
        #hero {
            position: relative;
            padding: 96px 0 110px;
            background: radial-gradient(circle at 80% 20%, rgba(112, 66, 255, 0.18), transparent 45%),
                        radial-gradient(circle at 20% 80%, rgba(0, 242, 165, 0.12), transparent 45%),
                        var(--bg-base);
            border-bottom: 1px solid var(--border-dim);
            overflow: hidden;
        }

        .hero-bg-overlay {
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/7422fcfab5b7b5e9.jpg');
            background-size: cover;
            background-position: center;
            opacity: 0.12;
            mix-blend-mode: luminosity;
            pointer-events: none;
        }

        .hero-layout {
            position: relative;
            z-index: 2;
            display: grid;
            grid-template-columns: 1.15fr 0.85fr;
            gap: 48px;
            align-items: center;
        }

        .hero-sale-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: linear-gradient(90deg, rgba(255, 75, 75, 0.2), rgba(112, 66, 255, 0.2));
            border: 1px solid #ff4b4b;
            color: #ff8585;
            padding: 6px 14px;
            border-radius: var(--radius-pill);
            font-size: 13px;
            font-weight: 700;
            margin-bottom: 24px;
            animation: pulse-border 2.5s infinite;
        }

        .hero-h1 {
            font-size: 42px;
            font-weight: 800;
            line-height: 1.25;
            margin-bottom: 22px;
            letter-spacing: -1px;
            background: linear-gradient(135deg, #FFFFFF 30%, #E2E8F0 70%, #00F2A5 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .hero-subtext {
            font-size: 16px;
            line-height: 1.8;
            color: var(--text-muted);
            margin-bottom: 36px;
            max-width: 640px;
        }

        .hero-action-group {
            display: flex;
            align-items: center;
            gap: 18px;
            flex-wrap: wrap;
        }

        .btn-prime {
            background: var(--primary);
            color: #07090E;
            font-size: 16px;
            font-weight: 700;
            padding: 14px 32px;
            border-radius: var(--radius-sm);
            display: inline-flex;
            align-items: center;
            gap: 10px;
            box-shadow: 0 0 25px var(--primary-glow);
        }

        .btn-prime:hover {
            background: #25ffb4;
            transform: translateY(-2px);
        }

        .btn-outline {
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid var(--border-light);
            color: var(--text-main);
            font-size: 16px;
            font-weight: 600;
            padding: 14px 28px;
            border-radius: var(--radius-sm);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .btn-outline:hover {
            border-color: var(--primary);
            background: rgba(0, 242, 165, 0.05);
        }

        .hero-topo-card {
            background: var(--bg-surface);
            border: 1px solid var(--border-dim);
            border-radius: var(--radius-lg);
            padding: 24px;
            position: relative;
            box-shadow: var(--shadow-card);
        }

        .topo-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            border-bottom: 1px solid var(--border-dim);
            padding-bottom: 16px;
            margin-bottom: 20px;
        }

        .topo-header-title {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-main);
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .topo-stats-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 14px;
            margin-bottom: 20px;
        }

        .topo-stat-item {
            background: var(--bg-darker);
            border: 1px solid var(--border-dim);
            border-radius: var(--radius-sm);
            padding: 14px;
        }

        .topo-stat-num {
            font-size: 24px;
            font-weight: 800;
            color: var(--primary);
            font-feature-settings: "tnum";
        }

        .topo-stat-label {
            font-size: 13px;
            color: var(--text-faint);
            margin-top: 4px;
        }

        .topo-img-wrap {
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--border-dim);
        }

        /* 2. 资讯流与热榜板块 (左资讯流 + 右热榜) */
        .split-feed-grid {
            display: grid;
            grid-template-columns: 1.4fr 0.8fr;
            gap: 40px;
        }

        .feed-card {
            background: var(--bg-surface);
            border: 1px solid var(--border-dim);
            border-radius: var(--radius-md);
            padding: 22px;
            margin-bottom: 20px;
            display: flex;
            gap: 20px;
            transition: transform 0.2s ease, border-color 0.2s ease;
        }

        .feed-card:hover {
            transform: translateY(-3px);
            border-color: rgba(0, 242, 165, 0.4);
        }

        .feed-img-holder {
            width: 140px;
            height: 96px;
            flex-shrink: 0;
            border-radius: var(--radius-sm);
            overflow: hidden;
            background: var(--bg-darker);
        }

        .feed-img-holder img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .feed-content h3 {
            font-size: 17px;
            font-weight: 700;
            line-height: 1.4;
            margin-bottom: 8px;
            color: var(--text-main);
        }

        .feed-content p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.6;
        }

        .feed-meta {
            font-size: 12px;
            color: var(--text-faint);
            margin-top: 8px;
            display: flex;
            align-items: center;
            gap: 14px;
        }

        .sidebar-rank-card {
            background: var(--bg-surface);
            border: 1px solid var(--border-dim);
            border-radius: var(--radius-md);
            padding: 24px;
        }

        .rank-title {
            font-size: 18px;
            font-weight: 700;
            padding-bottom: 14px;
            margin-bottom: 16px;
            border-bottom: 1px solid var(--border-dim);
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .rank-list {
            list-style: none;
        }

        .rank-item {
            display: flex;
            align-items: flex-start;
            gap: 14px;
            padding: 12px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.04);
        }

        .rank-num {
            width: 24px;
            height: 24px;
            border-radius: 4px;
            background: var(--bg-elevated);
            color: var(--text-muted);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 12px;
            font-weight: 700;
            flex-shrink: 0;
        }

        .rank-item:nth-child(1) .rank-num { background: #FF4B4B; color: #fff; }
        .rank-item:nth-child(2) .rank-num { background: #FF8F00; color: #fff; }
        .rank-item:nth-child(3) .rank-num { background: #00F2A5; color: #07090E; }

        .rank-text h4 {
            font-size: 14px;
            font-weight: 600;
            margin-bottom: 4px;
        }

        .rank-text span {
            font-size: 12px;
            color: var(--text-faint);
        }

        /* 3. 专题条板块 (Bento 条块化) */
        .special-topic-strip {
            background: linear-gradient(90deg, #121824, #1A2234);
            border: 1px solid var(--border-dim);
            border-radius: var(--radius-lg);
            padding: 36px 44px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 32px;
        }

        .special-text h3 {
            font-size: 24px;
            font-weight: 800;
            margin-bottom: 10px;
            color: var(--text-main);
        }

        .special-text p {
            color: var(--text-muted);
            font-size: 15px;
            max-width: 700px;
        }

        .special-badge-pill {
            background: rgba(112, 66, 255, 0.2);
            border: 1px solid var(--secondary);
            color: #d1b8ff;
            font-size: 12px;
            padding: 4px 12px;
            border-radius: var(--radius-pill);
            display: inline-block;
            margin-bottom: 8px;
        }

        /* 4. 分发服务体系概览 (#intro) */
        .intro-grid {
            display: grid;
            grid-template-columns: 1fr 1.1fr;
            gap: 52px;
            align-items: center;
        }

        .intro-media {
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border-dim);
            position: relative;
        }

        .tech-spec-table {
            width: 100%;
            margin-top: 24px;
            border-collapse: collapse;
        }

        .tech-spec-table th, .tech-spec-table td {
            padding: 12px 14px;
            border-bottom: 1px solid var(--border-dim);
            font-size: 14px;
            text-align: left;
        }

        .tech-spec-table th {
            color: var(--text-faint);
            font-weight: 500;
            width: 35%;
        }

        .tech-spec-table td {
            color: var(--text-main);
            font-weight: 600;
        }

        /* 5. 多端全渠道分发矩阵 (#solutions) */
        .matrix-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .matrix-card {
            background: var(--bg-surface);
            border: 1px solid var(--border-dim);
            border-radius: var(--radius-md);
            padding: 28px 22px;
            transition: all 0.3s ease;
        }

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

        .matrix-icon-box {
            width: 48px;
            height: 48px;
            border-radius: 8px;
            background: rgba(0, 242, 165, 0.1);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            margin-bottom: 20px;
        }

        .matrix-card h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 12px;
        }

        .matrix-card p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
        }

        /* 6. 核心技术优势 6 卡片网格 (#advantages) */
        .advantage-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }

        .adv-card {
            background: var(--bg-surface);
            border: 1px solid var(--border-dim);
            border-radius: var(--radius-md);
            padding: 30px;
            position: relative;
            transition: all 0.25s ease;
        }

        .adv-card:hover {
            border-color: var(--primary);
            transform: translateY(-4px);
        }

        .adv-icon-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 18px;
        }

        .adv-icon {
            font-size: 26px;
            color: var(--primary);
        }

        .adv-tag {
            font-size: 11px;
            background: var(--bg-elevated);
            color: var(--text-faint);
            padding: 3px 8px;
            border-radius: 4px;
        }

        .adv-card h3 {
            font-size: 19px;
            font-weight: 700;
            margin-bottom: 12px;
            color: var(--text-main);
        }

        .adv-card p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
        }

        /* 7. 热门内容分发产品 (#products) */
        .product-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }

        .product-card {
            background: var(--bg-surface);
            border: 1px solid var(--border-dim);
            border-radius: var(--radius-lg);
            overflow: hidden;
            display: flex;
            flex-direction: column;
            transition: transform 0.25s ease;
        }

        .product-card:hover {
            transform: translateY(-5px);
            border-color: rgba(0, 242, 165, 0.35);
        }

        .product-media {
            height: 180px;
            overflow: hidden;
            position: relative;
        }

        .product-media img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .product-body {
            padding: 28px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .product-body h3 {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 12px;
        }

        .product-body p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 20px;
            flex: 1;
        }

        .product-meta-row {
            border-top: 1px solid var(--border-dim);
            padding-top: 18px;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .product-meta-val {
            font-size: 13px;
            color: var(--text-faint);
        }

        .product-meta-val strong {
            color: var(--primary);
            font-size: 16px;
        }

        /* 8. 深色沉浸式案例与调度架构 (#infrastructure) */
        .infra-container {
            border: 1px solid rgba(0, 242, 165, 0.2);
            border-radius: var(--radius-lg);
            background: #07090E;
            padding: 44px;
            position: relative;
        }

        .infra-flow-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            margin-top: 36px;
        }

        .infra-flow-node {
            background: #0D121D;
            border: 1px solid var(--border-dim);
            border-radius: var(--radius-md);
            padding: 20px;
            position: relative;
        }

        .infra-flow-node::after {
            content: "\f054";
            font-family: "Font Awesome 6 Free";
            font-weight: 900;
            position: absolute;
            right: -14px;
            top: 50%;
            transform: translateY(-50%);
            color: var(--primary);
            font-size: 12px;
        }

        .infra-flow-node:last-child::after {
            display: none;
        }

        .infra-node-step {
            font-size: 11px;
            color: var(--primary);
            font-weight: 700;
            text-transform: uppercase;
            margin-bottom: 8px;
        }

        .infra-flow-node h4 {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 8px;
        }

        .infra-flow-node p {
            font-size: 13px;
            color: var(--text-faint);
            line-height: 1.6;
        }

        /* 9. 精选客户分发实战拆解 (#cases) */
        .case-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 32px;
        }

        .case-block {
            background: var(--bg-surface);
            border: 1px solid var(--border-dim);
            border-radius: var(--radius-lg);
            padding: 32px;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }

        .case-badge-title {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 16px;
        }

        .case-title {
            font-size: 20px;
            font-weight: 700;
        }

        .case-metric-box {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
            margin: 24px 0;
            background: var(--bg-darker);
            border: 1px solid var(--border-dim);
            border-radius: var(--radius-sm);
            padding: 18px;
        }

        .case-metric-cell h5 {
            font-size: 13px;
            color: var(--text-faint);
            margin-bottom: 4px;
        }

        .case-metric-cell span {
            font-size: 22px;
            font-weight: 800;
            color: var(--primary);
        }

        /* 10. 全球分发能力度量看板 (#metrics) */
        .metrics-bar-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .metric-card-big {
            background: var(--bg-surface);
            border: 1px solid var(--border-dim);
            border-radius: var(--radius-md);
            padding: 32px 20px;
            text-align: center;
        }

        .metric-card-big .num {
            font-size: 40px;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.1;
            margin-bottom: 8px;
            font-feature-settings: "tnum";
        }

        .metric-card-big .label {
            font-size: 15px;
            color: var(--text-main);
            font-weight: 600;
            margin-bottom: 6px;
        }

        .metric-card-big .sub {
            font-size: 13px;
            color: var(--text-faint);
        }

        /* 11. 适用场景矩阵 (#scenarios) */
        .scenario-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }

        .scenario-box {
            background: var(--bg-surface);
            border: 1px solid var(--border-dim);
            border-radius: var(--radius-lg);
            overflow: hidden;
        }

        .scenario-img {
            height: 160px;
            overflow: hidden;
        }

        .scenario-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .scenario-content {
            padding: 24px;
        }

        .scenario-content h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 12px;
        }

        .scenario-content p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
        }

        /* 12. 成本与计费模型方案 (#pricing) */
        .pricing-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
            align-items: stretch;
        }

        .price-card {
            background: var(--bg-surface);
            border: 1px solid var(--border-dim);
            border-radius: var(--radius-lg);
            padding: 36px 28px;
            display: flex;
            flex-direction: column;
            position: relative;
        }

        .price-card.featured {
            border-color: var(--primary);
            box-shadow: 0 0 30px rgba(0, 242, 165, 0.15);
            background: linear-gradient(180deg, #162030, #121824);
        }

        .price-featured-badge {
            position: absolute;
            top: -12px;
            left: 50%;
            transform: translateX(-50%);
            background: var(--primary);
            color: #07090E;
            font-size: 12px;
            font-weight: 800;
            padding: 3px 14px;
            border-radius: var(--radius-pill);
        }

        .price-card h3 {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 12px;
        }

        .price-val {
            font-size: 36px;
            font-weight: 800;
            color: var(--text-main);
            margin: 16px 0 24px;
            display: flex;
            align-items: baseline;
            gap: 4px;
        }

        .price-val small {
            font-size: 14px;
            color: var(--text-faint);
            font-weight: normal;
        }

        .price-features-list {
            list-style: none;
            margin-bottom: 32px;
            flex: 1;
        }

        .price-features-list li {
            font-size: 14px;
            color: var(--text-muted);
            padding: 8px 0;
            display: flex;
            align-items: center;
            gap: 10px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.04);
        }

        .price-features-list li i {
            color: var(--primary);
            font-size: 14px;
        }

        /* 13. 发行商与开发者评价墙 (#testimonials) */
        .testimonial-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }

        .testi-card {
            background: var(--bg-surface);
            border: 1px solid var(--border-dim);
            border-radius: var(--radius-md);
            padding: 28px;
        }

        .testi-stars {
            color: #FFB800;
            margin-bottom: 16px;
            font-size: 14px;
        }

        .testi-text {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.8;
            margin-bottom: 20px;
        }

        .testi-author {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .testi-author-info h4 {
            font-size: 15px;
            font-weight: 600;
        }

        .testi-author-info span {
            font-size: 13px;
            color: var(--text-faint);
        }

        /* 媒体合作与合作品牌墙 */
        .partner-grid {
            display: grid;
            grid-template-columns: repeat(6, 1fr);
            gap: 16px;
        }

        .partner-box {
            background: var(--bg-darker);
            border: 1px solid var(--border-dim);
            border-radius: var(--radius-sm);
            height: 72px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 14px;
            color: var(--text-faint);
            letter-spacing: 0.5px;
        }

        /* 技术接入手风琴 (FAQ) */
        .faq-accordion-wrap {
            max-width: 880px;
            margin: 0 auto;
        }

        .faq-item {
            border: 1px solid var(--border-dim);
            border-radius: var(--radius-md);
            background: var(--bg-surface);
            margin-bottom: 14px;
            overflow: hidden;
        }

        .faq-question {
            padding: 20px 24px;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 16px;
            font-weight: 600;
            user-select: none;
        }

        .faq-question i {
            transition: transform 0.25s ease;
            color: var(--primary);
        }

        .faq-answer {
            padding: 0 24px 20px;
            color: var(--text-muted);
            font-size: 15px;
            line-height: 1.75;
            display: block;
        }

        .faq-item:not(.active) .faq-answer {
            display: none;
        }

        .faq-item.active .faq-question i {
            transform: rotate(180deg);
        }

        /* 14. 全网极速分发开通转化区 (#cta) */
        .cta-section-wrapper {
            background: linear-gradient(135deg, #101622 0%, #070A0F 100%);
            border: 1px solid var(--border-dim);
            border-radius: var(--radius-lg);
            padding: 56px 48px;
            box-shadow: 0 0 40px rgba(0, 242, 165, 0.05);
        }

        .cta-inner-grid {
            display: grid;
            grid-template-columns: 1.1fr 0.9fr;
            gap: 56px;
            align-items: center;
        }

        .cta-left h2 {
            font-size: 34px;
            font-weight: 800;
            line-height: 1.3;
            margin-bottom: 18px;
            color: var(--text-main);
        }

        .cta-left p {
            font-size: 16px;
            color: var(--text-muted);
            line-height: 1.8;
            margin-bottom: 30px;
        }

        .cta-form-box {
            background: var(--bg-surface);
            border: 1px solid var(--border-dim);
            border-radius: var(--radius-md);
            padding: 32px;
        }

        .form-row {
            margin-bottom: 18px;
        }

        .form-row label {
            display: block;
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 6px;
            font-weight: 500;
        }

        .form-input, .form-select {
            width: 100%;
            background: var(--bg-darker);
            border: 1px solid var(--border-dim);
            border-radius: var(--radius-sm);
            padding: 12px 14px;
            color: var(--text-main);
            font-size: 14px;
            transition: border-color 0.2s ease;
        }

        .form-input:focus, .form-select:focus {
            border-color: var(--primary);
        }

        .form-submit-btn {
            width: 100%;
            background: var(--primary);
            color: #07090E;
            font-weight: 700;
            padding: 14px;
            border-radius: var(--radius-sm);
            cursor: pointer;
            font-size: 15px;
            transition: background 0.2s ease;
            margin-top: 8px;
        }

        .form-submit-btn:hover {
            background: var(--primary-hover);
        }

        /* 页脚规范 Footer */
        .site-footer {
            background: var(--bg-darker);
            border-top: 1px solid var(--border-dim);
            padding: 64px 0 32px;
            color: var(--text-muted);
            font-size: 14px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
            gap: 40px;
            margin-bottom: 48px;
        }

        .footer-col h4 {
            color: var(--text-main);
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 20px;
        }

        .footer-nav-list {
            list-style: none;
        }

        .footer-nav-list li {
            margin-bottom: 10px;
        }

        .footer-nav-list a:hover {
            color: var(--primary);
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            padding-top: 28px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 13px;
            color: var(--text-faint);
            flex-wrap: wrap;
            gap: 16px;
        }

        /* 响应式断点 */
        @media (max-width: 1024px) {
            .matrix-grid, .advantage-grid, .product-grid, .pricing-grid, .testimonial-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .metrics-bar-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .hero-layout, .split-feed-grid, .intro-grid, .case-grid, .cta-inner-grid {
                grid-template-columns: 1fr;
            }
            .infra-flow-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .partner-grid {
                grid-template-columns: repeat(3, 1fr);
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 768px) {
            .nav-links, .nav-cta-btn {
                display: none;
            }
            .mobile-menu-btn {
                display: block;
            }
            .hero-h1 {
                font-size: 30px;
            }
            .section-title {
                font-size: 26px;
            }
            .matrix-grid, .advantage-grid, .product-grid, .pricing-grid, .testimonial-grid, .scenario-grid {
                grid-template-columns: 1fr;
            }
            .special-topic-strip {
                flex-direction: column;
                align-items: flex-start;
                padding: 24px;
            }
            .cta-section-wrapper {
                padding: 32px 20px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
            .feed-card {
                flex-direction: column;
            }
            .feed-img-holder {
                width: 100%;
                height: 140px;
            }
        }