/* roulang page: index */
:root {
            --primary: #0052D9;
            --primary-hover: #003CAB;
            --accent: #00A3C4;
            --text-title: #0F172A;
            --text-body: #475569;
            --text-muted: #64748B;
            --bg-page: #F8FAFC;
            --bg-card: #FFFFFF;
            --bg-dark: #0B1120;
            --border-color: #E2E8F0;
            --border-hover: #CBD5E1;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.05), 0 10px 15px -5px rgba(0, 82, 217, 0.05);
            --shadow-hover: 0 20px 25px -5px rgba(0, 82, 217, 0.12), 0 8px 10px -6px rgba(0, 82, 217, 0.08);
            --radius-container: 16px;
            --radius-card: 12px;
            --radius-btn: 8px;
            --font-sans: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Segoe UI", Roboto, sans-serif;
            --font-mono: "JetBrains Mono", Consolas, Menlo, Monaco, Courier, monospace;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-sans);
            background-color: var(--bg-page);
            color: var(--text-body);
            line-height: 1.6;
            font-size: 15px;
            overflow-x: hidden;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: all 0.25s ease;
        }

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

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

        /* 顶部辅助条 */
        .top-bar {
            height: 38px;
            background-color: #F1F5F9;
            border-bottom: 1px solid var(--border-color);
            font-size: 13px;
            color: var(--text-muted);
            display: flex;
            align-items: center;
        }

        .top-bar-inner {
            display: flex;
            justify-content: space-between;
            align-items: center;
            width: 100%;
        }

        .status-indicator {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-weight: 500;
            color: #0F172A;
        }

        .pulse-dot {
            width: 8px;
            height: 8px;
            background-color: #10B981;
            border-radius: 50%;
            box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7);
            animation: pulse 2s infinite;
        }

        @keyframes pulse {
            0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7); }
            70% { transform: scale(1); box-shadow: 0 0 0 6px rgba(16, 185, 129, 0); }
            100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(16, 185, 129, 0); }
        }

        .top-links {
            display: flex;
            gap: 20px;
        }

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

        /* 主导航栏 */
        .header-nav {
            position: sticky;
            top: 0;
            z-index: 1000;
            background-color: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(10px);
            border-bottom: 1px solid var(--border-color);
            height: 72px;
            display: flex;
            align-items: center;
            transition: all 0.3s ease;
        }

        .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
        }

        .brand-logo {
            font-size: 19px;
            font-weight: 700;
            color: var(--text-title);
            display: flex;
            align-items: center;
            gap: 10px;
            letter-spacing: -0.3px;
        }

        .brand-logo-icon {
            width: 34px;
            height: 34px;
            background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #FFFFFF;
            font-weight: 900;
            font-size: 18px;
        }

        .nav-menu {
            display: flex;
            align-items: center;
            list-style: none;
            gap: 24px;
        }

        .nav-link {
            font-size: 14px;
            font-weight: 500;
            color: var(--text-title);
            padding: 8px 4px;
            position: relative;
        }

        .nav-link:hover, .nav-link.active {
            color: var(--primary);
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 9px 18px;
            border-radius: var(--radius-btn);
            font-size: 14px;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.25s ease;
            white-space: nowrap;
            border: 1px solid transparent;
        }

        .btn-primary {
            background-color: var(--primary);
            color: #FFFFFF;
            box-shadow: 0 4px 12px rgba(0, 82, 217, 0.2);
        }

        .btn-primary:hover {
            background-color: var(--primary-hover);
            transform: translateY(-2px);
            box-shadow: 0 6px 18px rgba(0, 82, 217, 0.3);
        }

        .btn-outline {
            background-color: #FFFFFF;
            border-color: var(--border-hover);
            color: var(--text-title);
        }

        .btn-outline:hover {
            border-color: var(--primary);
            color: var(--primary);
            background-color: #F8FAFC;
        }

        .btn-white {
            background-color: #FFFFFF;
            color: var(--primary);
            box-shadow: 0 4px 14px rgba(0,0,0,0.1);
        }
        .btn-white:hover {
            background-color: #F8FAFC;
            transform: translateY(-2px);
        }

        .mobile-toggle {
            display: none;
            background: none;
            border: none;
            cursor: pointer;
            padding: 6px;
        }

        .mobile-toggle span {
            display: block;
            width: 22px;
            height: 2px;
            background-color: var(--text-title);
            margin: 5px 0;
            transition: all 0.3s;
        }

        /* 统一 Section 基础样式 */
        section {
            padding: 84px 0;
            position: relative;
        }

        .section-header {
            margin-bottom: 48px;
            text-align: center;
            max-width: 820px;
            margin-left: auto;
            margin-right: auto;
        }

        .section-tag {
            display: inline-block;
            background-color: #EFF6FF;
            color: var(--primary);
            font-size: 12px;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 20px;
            margin-bottom: 14px;
            text-transform: uppercase;
            letter-spacing: 0.5px;
            border: 1px solid rgba(0, 82, 217, 0.15);
        }

        .section-title {
            font-size: 32px;
            font-weight: 700;
            color: var(--text-title);
            line-height: 1.3;
            margin-bottom: 14px;
            letter-spacing: -0.5px;
        }

        .section-desc {
            font-size: 16px;
            color: var(--text-body);
            line-height: 1.7;
        }

        /* 1. Hero 裂变邀请与首屏大图 */
        .hero-section {
            padding: 50px 0 70px;
            background: linear-gradient(180deg, #FFFFFF 0%, #F1F5F9 100%);
            border-bottom: 1px solid var(--border-color);
            position: relative;
            overflow: hidden;
        }

        .hero-banner-card {
            background-color: #FFFFFF;
            border-radius: var(--radius-container);
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-sm);
            padding: 40px;
            display: grid;
            grid-template-columns: 1.15fr 0.85fr;
            gap: 40px;
            align-items: center;
            position: relative;
        }

        .hero-content h1 {
            font-size: 38px;
            font-weight: 800;
            line-height: 1.25;
            color: var(--text-title);
            margin-bottom: 18px;
            letter-spacing: -0.8px;
        }

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

        .hero-text {
            font-size: 16px;
            line-height: 1.75;
            color: var(--text-body);
            margin-bottom: 24px;
        }

        .referral-progress-wrap {
            background-color: #F8FAFC;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 18px 20px;
            margin-bottom: 24px;
        }

        .referral-status-head {
            display: flex;
            justify-content: space-between;
            font-size: 13px;
            margin-bottom: 8px;
            color: var(--text-title);
            font-weight: 600;
        }

        .progress-bar-bg {
            height: 8px;
            background-color: #E2E8F0;
            border-radius: 4px;
            overflow: hidden;
        }

        .progress-bar-fill {
            width: 78%;
            height: 100%;
            background: linear-gradient(90deg, var(--primary) 0%, var(--accent) 100%);
            border-radius: 4px;
        }

        .referral-reward-tip {
            font-size: 12px;
            color: var(--text-muted);
            margin-top: 8px;
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .hero-actions {
            display: flex;
            gap: 16px;
            align-items: center;
        }

        .hero-image-box {
            position: relative;
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: 0 16px 36px rgba(15, 23, 42, 0.12);
            border: 1px solid var(--border-color);
        }

        .hero-image-box img {
            width: 100%;
            height: 380px;
            object-fit: cover;
            display: block;
        }

        .hero-floating-badge {
            position: absolute;
            bottom: 16px;
            left: 16px;
            background: rgba(15, 23, 42, 0.85);
            backdrop-filter: blur(8px);
            color: #FFFFFF;
            padding: 10px 16px;
            border-radius: 8px;
            font-size: 13px;
            display: flex;
            align-items: center;
            gap: 10px;
            border: 1px solid rgba(255, 255, 255, 0.15);
        }

        /* 2. 行业接入痛点剖析 */
        .painpoints-section {
            background-color: #FFFFFF;
        }

        .grid-4 {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .pain-card {
            background-color: #FFF;
            border: 1px solid var(--border-color);
            border-top: 3px solid #EF4444;
            border-radius: var(--radius-card);
            padding: 24px;
            box-shadow: var(--shadow-sm);
            transition: all 0.3s;
        }

        .pain-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: #F87171;
        }

        .pain-card h3 {
            font-size: 17px;
            font-weight: 700;
            color: var(--text-title);
            margin-bottom: 10px;
        }

        .pain-card p {
            font-size: 14px;
            color: var(--text-body);
            line-height: 1.6;
        }

        /* 3. 架构拓扑解决方案 */
        .arch-section {
            background-color: #F8FAFC;
        }

        .arch-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }

        .arch-layer-item {
            background-color: #FFFFFF;
            border: 1px solid var(--border-color);
            border-left: 4px solid var(--primary);
            border-radius: 8px;
            padding: 16px 20px;
            margin-bottom: 16px;
            box-shadow: var(--shadow-sm);
        }

        .arch-layer-item h4 {
            font-size: 16px;
            color: var(--text-title);
            margin-bottom: 6px;
            display: flex;
            justify-content: space-between;
        }

        .arch-layer-item span {
            font-size: 12px;
            background: #EFF6FF;
            color: var(--primary);
            padding: 2px 8px;
            border-radius: 4px;
            font-family: var(--font-mono);
        }

        .arch-layer-item p {
            font-size: 13px;
            color: var(--text-body);
            margin: 0;
        }

        .arch-visual {
            position: relative;
            border-radius: var(--radius-container);
            overflow: hidden;
            box-shadow: var(--shadow-hover);
            border: 1px solid var(--border-color);
        }

        .arch-visual img {
            width: 100%;
            height: 420px;
            object-fit: cover;
        }

        /* 4. 核心技术优势（3x2 网格） */
        .advantages-section {
            background-color: #FFFFFF;
        }

        .grid-3 {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }

        .adv-card {
            background-color: #FFFFFF;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 30px;
            box-shadow: var(--shadow-sm);
            transition: all 0.3s ease;
        }

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

        .adv-icon-box {
            width: 48px;
            height: 48px;
            background-color: #EFF6FF;
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-weight: 700;
            font-size: 18px;
            margin-bottom: 20px;
        }

        .adv-card h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-title);
            margin-bottom: 12px;
        }

        .adv-card p {
            font-size: 14px;
            color: var(--text-body);
            line-height: 1.65;
        }

        /* 5. 热门娱乐产品矩阵 */
        .products-section {
            background-color: #F8FAFC;
        }

        .product-card {
            background-color: #FFFFFF;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 28px;
            box-shadow: var(--shadow-sm);
            display: flex;
            flex-direction: column;
            justify-content: space-between;
            transition: all 0.3s;
        }

        .product-card:hover {
            box-shadow: var(--shadow-hover);
            border-color: var(--primary);
        }

        .product-card-top {
            margin-bottom: 20px;
        }

        .product-badge {
            display: inline-block;
            font-size: 12px;
            font-weight: 600;
            padding: 3px 10px;
            border-radius: 4px;
            margin-bottom: 12px;
        }

        .badge-cyan { background-color: #E0F2FE; color: #0284C7; }
        .badge-indigo { background-color: #EEF2FF; color: #4F46E5; }
        .badge-emerald { background-color: #ECFDF5; color: #059669; }

        .product-card h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-title);
            margin-bottom: 10px;
        }

        .product-card-desc {
            font-size: 14px;
            color: var(--text-body);
            margin-bottom: 18px;
            line-height: 1.6;
        }

        .tech-spec-list {
            list-style: none;
            border-top: 1px solid var(--border-color);
            padding-top: 14px;
            margin-bottom: 22px;
        }

        .tech-spec-list li {
            display: flex;
            justify-content: space-between;
            font-size: 13px;
            padding: 7px 0;
            color: var(--text-muted);
        }

        .tech-spec-list li strong {
            color: var(--text-title);
            font-family: var(--font-mono);
        }

        /* 6. 企业级深色技术理念与私有化案例 */
        .dark-concept-section {
            background-color: var(--bg-dark);
            color: #E2E8F0;
            padding: 90px 0;
        }

        .dark-concept-section .section-title {
            color: #FFFFFF;
        }

        .dark-concept-section .section-desc {
            color: #94A3B8;
        }

        .dark-grid {
            display: grid;
            grid-template-columns: 1fr 1.1fr;
            gap: 40px;
            align-items: center;
        }

        .dark-content h3 {
            font-size: 24px;
            color: #FFFFFF;
            margin-bottom: 16px;
        }

        .dark-content p {
            font-size: 15px;
            color: #94A3B8;
            line-height: 1.7;
            margin-bottom: 20px;
        }

        .case-highlight-list {
            list-style: none;
            margin-bottom: 24px;
        }

        .case-highlight-list li {
            font-size: 14px;
            color: #CBD5E1;
            padding: 8px 0;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .code-box {
            background-color: #030712;
            border: 1px solid #1E293B;
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
        }

        .code-header {
            background-color: #0F172A;
            padding: 10px 16px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            border-bottom: 1px solid #1E293B;
            font-size: 12px;
            color: #94A3B8;
            font-family: var(--font-mono);
        }

        .code-dots {
            display: flex;
            gap: 6px;
        }

        .code-dot {
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background-color: #334155;
        }

        .code-body {
            padding: 18px;
            font-family: var(--font-mono);
            font-size: 13px;
            line-height: 1.6;
            color: #38BDF8;
            overflow-x: auto;
        }

        .code-body .keyword { color: #F472B6; }
        .code-body .string { color: #A7F3D0; }
        .code-body .number { color: #FBBF24; }

        /* 7. 标准接入方法与工作流 */
        .workflow-section {
            background-color: #FFFFFF;
        }

        .steps-container {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            position: relative;
        }

        .step-item {
            background-color: #F8FAFC;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 24px;
            position: relative;
        }

        .step-number {
            font-size: 28px;
            font-weight: 800;
            color: var(--primary);
            font-family: var(--font-mono);
            margin-bottom: 12px;
            opacity: 0.9;
        }

        .step-item h3 {
            font-size: 17px;
            color: var(--text-title);
            margin-bottom: 8px;
            font-weight: 700;
        }

        .step-item p {
            font-size: 13px;
            color: var(--text-body);
            line-height: 1.6;
        }

        /* 8. 成果数据统计条 */
        .metrics-section {
            background-color: #F8FAFC;
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
            padding: 60px 0;
        }

        .metrics-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            text-align: center;
        }

        .metric-card {
            background-color: #FFFFFF;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 28px 20px;
            box-shadow: var(--shadow-sm);
        }

        .metric-val {
            font-size: 42px;
            font-weight: 800;
            color: var(--primary);
            font-family: var(--font-mono);
            line-height: 1.1;
            margin-bottom: 8px;
        }

        .metric-label {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-title);
            margin-bottom: 4px;
        }

        .metric-sub {
            font-size: 12px;
            color: var(--text-muted);
        }

        /* 9. 标杆客户证言 */
        .testimonials-section {
            background-color: #FFFFFF;
        }

        .testi-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 30px;
        }

        .testi-card {
            background-color: #F8FAFC;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 32px;
            box-shadow: var(--shadow-sm);
            position: relative;
        }

        .quote-icon {
            font-size: 36px;
            color: var(--primary);
            line-height: 1;
            opacity: 0.3;
            margin-bottom: 10px;
        }

        .testi-text {
            font-size: 15px;
            line-height: 1.7;
            color: var(--text-body);
            margin-bottom: 20px;
            font-style: italic;
        }

        .testi-author {
            display: flex;
            align-items: center;
            gap: 14px;
            border-top: 1px solid var(--border-color);
            padding-top: 16px;
        }

        .author-avatar {
            width: 44px;
            height: 44px;
            background-color: #DBEAFE;
            color: var(--primary);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 16px;
        }

        .author-info h4 {
            font-size: 15px;
            color: var(--text-title);
            font-weight: 700;
        }

        .author-info p {
            font-size: 12px;
            color: var(--text-muted);
            margin: 0;
        }

        /* 10. 适用人群与场景生态 */
        .scenarios-section {
            background-color: #F8FAFC;
        }

        .scenarios-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .scenario-card {
            background-color: #FFFFFF;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 24px;
            box-shadow: var(--shadow-sm);
            transition: all 0.25s;
        }

        .scenario-card:hover {
            border-color: var(--accent);
            transform: translateY(-3px);
            box-shadow: var(--shadow-hover);
        }

        .scenario-card h3 {
            font-size: 17px;
            font-weight: 700;
            color: var(--text-title);
            margin-bottom: 10px;
        }

        .scenario-card p {
            font-size: 13px;
            color: var(--text-body);
            line-height: 1.6;
        }

        /* 11. 前沿资讯与动态 */
        .news-section {
            background-color: #FFFFFF;
        }

        .news-card {
            background-color: #FFFFFF;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            display: flex;
            flex-direction: column;
            transition: all 0.3s;
        }

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

        .news-thumb {
            height: 180px;
            width: 100%;
            object-fit: cover;
        }

        .news-body {
            padding: 24px;
            flex-grow: 1;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }

        .news-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 12px;
            color: var(--text-muted);
            margin-bottom: 10px;
        }

        .news-tag {
            background-color: #F1F5F9;
            color: var(--primary);
            padding: 2px 8px;
            border-radius: 4px;
            font-weight: 600;
        }

        .news-title {
            font-size: 17px;
            font-weight: 700;
            color: var(--text-title);
            margin-bottom: 10px;
            line-height: 1.4;
        }

        .news-summary {
            font-size: 13px;
            color: var(--text-body);
            line-height: 1.6;
            margin-bottom: 16px;
        }

        .news-link {
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        /* 12. 接入指南与FAQ */
        .faq-section {
            background-color: #F8FAFC;
        }

        .faq-container {
            max-width: 880px;
            margin: 0 auto;
        }

        .faq-item {
            background-color: #FFFFFF;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            margin-bottom: 14px;
            overflow: hidden;
            transition: all 0.25s;
        }

        .faq-item[open] {
            border-color: var(--primary);
            box-shadow: var(--shadow-sm);
        }

        .faq-question {
            padding: 20px 24px;
            font-size: 16px;
            font-weight: 700;
            color: var(--text-title);
            cursor: pointer;
            list-style: none;
            display: flex;
            justify-content: space-between;
            align-items: center;
            user-select: none;
        }

        .faq-question::-webkit-details-marker {
            display: none;
        }

        .faq-arrow {
            width: 16px;
            height: 16px;
            stroke: var(--primary);
            transition: transform 0.25s ease;
        }

        .faq-item[open] .faq-arrow {
            transform: rotate(180deg);
        }

        .faq-answer {
            padding: 0 24px 20px;
            font-size: 14px;
            color: var(--text-body);
            line-height: 1.7;
            border-top: 1px solid #F1F5F9;
            padding-top: 14px;
        }

        /* 13. 主转化闭环区 */
        .cta-section {
            background: linear-gradient(135deg, #0B1120 0%, #1E293B 100%);
            color: #FFFFFF;
            padding: 80px 0;
            text-align: center;
        }

        .cta-box {
            max-width: 760px;
            margin: 0 auto;
            background: radial-gradient(circle at 50% 0%, rgba(0, 82, 217, 0.3) 0%, transparent 70%);
            padding: 40px 24px;
            border-radius: var(--radius-container);
            border: 1px solid rgba(255, 255, 255, 0.1);
        }

        .cta-box h2 {
            font-size: 32px;
            font-weight: 800;
            margin-bottom: 16px;
            letter-spacing: -0.5px;
        }

        .cta-box p {
            font-size: 16px;
            color: #94A3B8;
            margin-bottom: 28px;
            line-height: 1.6;
        }

        .cta-actions {
            display: flex;
            justify-content: center;
            gap: 16px;
            margin-bottom: 18px;
        }

        .cta-guarantee {
            font-size: 13px;
            color: #64748B;
        }

        /* 页脚规范 */
        .site-footer {
            background-color: #0A0F1D;
            color: #94A3B8;
            padding: 70px 0 24px;
            border-top: 1px solid #1E293B;
            font-size: 14px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
            gap: 40px;
            margin-bottom: 50px;
        }

        .footer-brand h3 {
            color: #FFFFFF;
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 14px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .footer-brand p {
            font-size: 13px;
            line-height: 1.7;
            color: #64748B;
            margin-bottom: 18px;
        }

        .sla-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 12px;
            background: #1E293B;
            color: #38BDF8;
            padding: 5px 10px;
            border-radius: 4px;
            border: 1px solid #334155;
        }

        .footer-col h4 {
            color: #FFFFFF;
            font-size: 15px;
            font-weight: 600;
            margin-bottom: 16px;
        }

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

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

        .footer-links a {
            color: #94A3B8;
            font-size: 13px;
        }

        .footer-links a:hover {
            color: #FFFFFF;
            padding-left: 3px;
        }

        .contact-list {
            list-style: none;
            font-size: 13px;
            line-height: 1.8;
            color: #94A3B8;
        }

        .copyright-bar {
            border-top: 1px solid #1E293B;
            padding-top: 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 12px;
            color: #475569;
        }

        .copyright-bar a {
            color: #64748B;
        }

        .copyright-bar a:hover {
            color: #94A3B8;
        }

        /* 移动端抽屉与响应式断点 */
        @media (max-width: 1024px) {
            .grid-4, .scenarios-grid, .metrics-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .grid-3 {
                grid-template-columns: 1fr;
            }
            .steps-container {
                grid-template-columns: repeat(2, 1fr);
            }
            .hero-banner-card {
                grid-template-columns: 1fr;
            }
            .hero-image-box img {
                height: 300px;
            }
            .arch-grid, .dark-grid, .testi-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 768px) {
            .top-bar {
                display: none;
            }
            .header-nav {
                height: 64px;
            }
            .mobile-toggle {
                display: block;
            }
            .nav-actions {
                display: none;
            }
            .nav-menu {
                position: fixed;
                top: 64px;
                left: 0;
                width: 100%;
                height: calc(100vh - 64px);
                background-color: #FFFFFF;
                flex-direction: column;
                align-items: flex-start;
                padding: 24px;
                gap: 16px;
                transform: translateX(100%);
                transition: transform 0.3s ease-in-out;
                box-shadow: var(--shadow-hover);
                overflow-y: auto;
            }
            .nav-menu.open {
                transform: translateX(0);
            }
            .nav-link {
                font-size: 16px;
                width: 100%;
                border-bottom: 1px solid var(--border-color);
                padding-bottom: 12px;
            }
            section {
                padding: 56px 0;
            }
            .section-title {
                font-size: 26px;
            }
            .hero-content h1 {
                font-size: 28px;
            }
            .grid-4, .scenarios-grid, .metrics-grid, .steps-container {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
            .copyright-bar {
                flex-direction: column;
                gap: 10px;
                text-align: center;
            }
            .cta-actions {
                flex-direction: column;
            }
        }