/* roulang page: index */
:root {
            --primary: #0F3A3A;
            --primary-light: #164848;
            --primary-dark: #092424;
            --accent: #22C55E;
            --accent-gold: #C5A880;
            --bg-main: #F8F9FA;
            --bg-card: #FFFFFF;
            --bg-dark: #0B1315;
            --text-main: #111827;
            --text-muted: #4B5563;
            --text-sub: #9CA3AF;
            --border-color: #E5E7EB;
            --border-dark: #1E292B;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
            --shadow-md: 0 8px 24px -4px rgba(0, 0, 0, 0.06);
            --shadow-lg: 0 16px 36px -6px rgba(0, 0, 0, 0.1);
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
        }

        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            font-family: var(--font-family);
            background-color: var(--bg-main);
            color: var(--text-main);
            line-height: 1.75;
            letter-spacing: -0.01em;
        }

        body {
            overflow-x: hidden;
            display: flex;
            flex-direction: column;
            min-height: 100vh;
        }

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

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

        .container {
            width: 100%;
            max-width: 1200px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        /* 顶部通栏 */
        .top-notice-bar {
            background-color: var(--primary-dark);
            color: #A3B8B8;
            font-size: 13px;
            padding: 8px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }
        .top-notice-inner {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .top-notice-tags {
            display: flex;
            gap: 16px;
        }
        .top-notice-tags span {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .top-notice-tags span::before {
            content: "•";
            color: var(--accent);
        }

        /* 导航栏 */
        .site-header {
            background-color: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(12px);
            position: sticky;
            top: 0;
            z-index: 1000;
            border-bottom: 1px solid var(--border-color);
            transition: all 0.3s ease;
        }
        .navbar {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
        }
        .brand-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: -0.02em;
        }
        .brand-logo svg {
            width: 32px;
            height: 32px;
            color: var(--primary);
        }
        .nav-links {
            display: flex;
            gap: 32px;
            list-style: none;
        }
        .nav-links a {
            font-size: 15px;
            font-weight: 500;
            color: var(--text-muted);
            padding: 6px 0;
            position: relative;
        }
        .nav-links a:hover, .nav-links a.active {
            color: var(--primary);
        }
        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background-color: var(--primary);
            transition: width 0.25s ease;
        }
        .nav-links a:hover::after, .nav-links a.active::after {
            width: 100%;
        }
        .nav-cta-btn {
            background-color: var(--primary);
            color: #FFFFFF;
            padding: 10px 22px;
            border-radius: var(--radius-sm);
            font-size: 14px;
            font-weight: 600;
            border: 1px solid var(--primary);
            cursor: pointer;
            transition: all 0.2s ease;
            box-shadow: 0 2px 6px rgba(15, 58, 58, 0.2);
        }
        .nav-cta-btn:hover {
            background-color: var(--primary-light);
            box-shadow: 0 4px 12px rgba(15, 58, 58, 0.3);
            transform: translateY(-1px);
        }

        /* 模块基础样式 */
        .section-padding {
            padding: 88px 0;
        }
        .section-header {
            margin-bottom: 56px;
            max-width: 760px;
        }
        .section-header.center {
            margin-left: auto;
            margin-right: auto;
            text-align: center;
        }
        .section-badge {
            display: inline-block;
            font-size: 12px;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.08em;
            color: var(--primary);
            background-color: rgba(15, 58, 58, 0.08);
            padding: 4px 12px;
            border-radius: 4px;
            margin-bottom: 14px;
        }
        .section-title {
            font-size: 32px;
            font-weight: 800;
            color: var(--text-main);
            line-height: 1.3;
            margin-bottom: 16px;
            letter-spacing: -0.02em;
        }
        .section-subtitle {
            font-size: 16px;
            color: var(--text-muted);
            line-height: 1.7;
        }

        /* 1. Hero 工业参数首屏 */
        .hero-section {
            background: linear-gradient(180deg, #FFFFFF 0%, #F3F5F5 100%);
            border-bottom: 1px solid var(--border-color);
            padding: 80px 0 70px;
            position: relative;
        }
        .hero-grid {
            display: grid;
            grid-template-columns: 1.15fr 0.85fr;
            gap: 48px;
            align-items: center;
        }
        .hero-badge-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: #E8F0EF;
            color: var(--primary);
            font-size: 13px;
            font-weight: 600;
            padding: 6px 14px;
            border-radius: 20px;
            margin-bottom: 24px;
        }
        .hero-badge-tag .pulse-dot {
            width: 8px;
            height: 8px;
            background: var(--accent);
            border-radius: 50%;
            display: inline-block;
            box-shadow: 0 0 0 0 rgba(34, 197, 94, 0.7);
            animation: pulse 1.8s infinite;
        }
        @keyframes pulse {
            0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(34, 197, 94, 0.7); }
            70% { transform: scale(1); box-shadow: 0 0 0 6px rgba(34, 197, 94, 0); }
            100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(34, 197, 94, 0); }
        }
        .hero-title {
            font-size: 46px;
            font-weight: 900;
            line-height: 1.2;
            color: var(--primary);
            letter-spacing: -0.03em;
            margin-bottom: 20px;
        }
        .hero-desc {
            font-size: 17px;
            color: var(--text-muted);
            line-height: 1.8;
            margin-bottom: 32px;
        }
        .hero-actions {
            display: flex;
            gap: 16px;
            align-items: center;
            margin-bottom: 36px;
        }
        .btn-primary {
            background-color: var(--primary);
            color: #FFFFFF;
            padding: 14px 30px;
            font-size: 15px;
            font-weight: 600;
            border-radius: var(--radius-sm);
            border: none;
            cursor: pointer;
            transition: all 0.25s ease;
            box-shadow: var(--shadow-md);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .btn-primary:hover {
            background-color: var(--primary-light);
            transform: translateY(-2px);
            box-shadow: var(--shadow-lg);
        }
        .btn-secondary {
            background-color: #FFFFFF;
            color: var(--primary);
            padding: 14px 28px;
            font-size: 15px;
            font-weight: 600;
            border-radius: var(--radius-sm);
            border: 1px solid var(--border-color);
            cursor: pointer;
            transition: all 0.2s ease;
        }
        .btn-secondary:hover {
            background-color: #F8F9FA;
            border-color: var(--primary);
        }
        .hero-param-box {
            background-color: #FFFFFF;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 24px;
            box-shadow: var(--shadow-md);
        }
        .param-bar-header {
            font-size: 14px;
            font-weight: 700;
            color: var(--primary);
            text-transform: uppercase;
            letter-spacing: 0.05em;
            margin-bottom: 16px;
            border-bottom: 1px solid var(--border-color);
            padding-bottom: 8px;
        }
        .param-bar-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 16px;
        }
        .param-bar-item {
            display: flex;
            flex-direction: column;
        }
        .param-bar-value {
            font-size: 26px;
            font-weight: 800;
            color: var(--primary);
            font-variant-numeric: tabular-nums;
        }
        .param-bar-label {
            font-size: 13px;
            color: var(--text-sub);
            margin-top: 2px;
        }
        .hero-banner-visual {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-lg);
            background: #EAEAEA;
        }
        .hero-banner-visual img {
            width: 100%;
            height: 380px;
            object-fit: cover;
        }

        /* 2. 倒计时预警状态条 */
        .countdown-strip-section {
            background-color: var(--primary-dark);
            color: #FFFFFF;
            padding: 36px 0;
            border-bottom: 1px solid var(--border-dark);
        }
        .countdown-flex {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            flex-wrap: wrap;
        }
        .countdown-info h3 {
            font-size: 18px;
            font-weight: 700;
            color: #FFFFFF;
            margin-bottom: 4px;
        }
        .countdown-info p {
            font-size: 14px;
            color: #8C9EA0;
        }
        .countdown-timer-group {
            display: flex;
            gap: 12px;
        }
        .timer-unit {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.12);
            padding: 10px 18px;
            border-radius: var(--radius-sm);
            text-align: center;
            min-width: 68px;
        }
        .timer-unit .num {
            font-size: 22px;
            font-weight: 800;
            color: var(--accent);
            display: block;
            font-variant-numeric: tabular-nums;
        }
        .timer-unit .lbl {
            font-size: 11px;
            color: #A3B8B8;
        }
        .strip-status-badge {
            background: rgba(34, 197, 94, 0.15);
            color: var(--accent);
            border: 1px solid var(--accent);
            padding: 6px 14px;
            border-radius: 4px;
            font-size: 13px;
            font-weight: 600;
        }

        /* 3. 架构机制拆解（左右图文） */
        .tech-arch-section {
            background-color: #FFFFFF;
        }
        .arch-split-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 56px;
            align-items: center;
        }
        .arch-flow-diagram {
            background-color: var(--bg-main);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 32px;
            position: relative;
        }
        .flow-step-node {
            display: flex;
            align-items: flex-start;
            gap: 16px;
            margin-bottom: 24px;
            position: relative;
        }
        .flow-step-node:last-child {
            margin-bottom: 0;
        }
        .node-icon-box {
            width: 44px;
            height: 44px;
            background: #FFFFFF;
            border: 1px solid var(--border-color);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            color: var(--primary);
            flex-shrink: 0;
            box-shadow: var(--shadow-sm);
        }
        .node-content h4 {
            font-size: 16px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 4px;
        }
        .node-content p {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* 4. 卖点三连进阶（六宫格） */
        .features-grid-section {
            background-color: var(--bg-main);
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
        }
        .six-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .feature-card {
            background: #FFFFFF;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 32px 28px;
            transition: all 0.3s ease;
        }
        .feature-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
            border-color: var(--primary-light);
        }
        .card-icon {
            width: 48px;
            height: 48px;
            background: rgba(15, 58, 58, 0.05);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            margin-bottom: 20px;
        }
        .feature-card h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 12px;
        }
        .feature-card p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.65;
        }

        /* 5. 热门方案矩阵（3纵向卡片） */
        .matrix-section {
            background-color: #FFFFFF;
        }
        .matrix-cards-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 32px;
            align-items: stretch;
        }
        .matrix-card {
            background: var(--bg-main);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 40px 32px;
            display: flex;
            flex-direction: column;
            position: relative;
            transition: all 0.3s ease;
        }
        .matrix-card.elevated {
            background: #FFFFFF;
            border: 2px solid var(--primary);
            box-shadow: var(--shadow-lg);
            transform: translateY(-8px);
        }
        .matrix-badge-top {
            position: absolute;
            top: -14px;
            left: 50%;
            transform: translateX(-50%);
            background: var(--primary);
            color: #FFFFFF;
            font-size: 12px;
            font-weight: 700;
            padding: 4px 16px;
            border-radius: 20px;
        }
        .matrix-card-title {
            font-size: 22px;
            font-weight: 800;
            color: var(--primary);
            margin-bottom: 10px;
        }
        .matrix-card-desc {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.6;
            margin-bottom: 24px;
            min-height: 68px;
        }
        .matrix-spec-list {
            list-style: none;
            margin-bottom: 32px;
            flex-grow: 1;
        }
        .matrix-spec-list li {
            font-size: 14px;
            color: var(--text-main);
            margin-bottom: 12px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .matrix-spec-list li svg {
            color: var(--accent);
            flex-shrink: 0;
        }

        /* 6. 场景沉浸演示区（左步进卡+右交互预览） */
        .scene-demo-section {
            background-color: var(--bg-main);
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
        }
        .scene-container-box {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            background: #FFFFFF;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 40px;
            box-shadow: var(--shadow-md);
        }
        .scene-step-timeline {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }
        .timeline-item {
            padding: 16px;
            border-left: 3px solid var(--primary);
            background: #F9FAFB;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
        }
        .timeline-item.active {
            background: #E8F0EF;
            border-color: var(--accent);
        }
        .timeline-tag {
            font-size: 12px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 4px;
        }
        .timeline-title {
            font-size: 15px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 6px;
        }
        .timeline-desc {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.6;
        }
        .scene-preview-card {
            background: var(--primary-dark);
            border-radius: var(--radius-md);
            padding: 24px;
            color: #FFFFFF;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }
        .preview-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            border-bottom: 1px solid rgba(255,255,255,0.1);
            padding-bottom: 14px;
            margin-bottom: 18px;
        }
        .preview-content-box {
            background: rgba(255, 255, 255, 0.05);
            border-radius: var(--radius-sm);
            padding: 18px;
            font-family: monospace;
            font-size: 13px;
            line-height: 1.8;
            color: #C1D5D5;
        }
        .preview-footer-note {
            margin-top: 18px;
            font-size: 12px;
            color: #8C9EA0;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        /* 7. 深色理念与数据安全区 */
        .dark-security-section {
            background-color: var(--bg-dark);
            color: #FFFFFF;
            position: relative;
        }
        .dark-security-section .section-title {
            color: #FFFFFF;
        }
        .dark-security-section .section-subtitle {
            color: #9CA3AF;
        }
        .security-cards-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .security-card-box {
            background: #121E20;
            border: 1px solid var(--border-dark);
            border-radius: var(--radius-md);
            padding: 32px 24px;
        }
        .security-card-box h3 {
            font-size: 18px;
            color: #FFFFFF;
            margin-bottom: 12px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .security-card-box p {
            font-size: 14px;
            color: #9CA3AF;
            line-height: 1.7;
        }

        /* 8. 关键数据统计条 */
        .stats-stripe-section {
            background-color: #FFFFFF;
            border-bottom: 1px solid var(--border-color);
            padding: 56px 0;
        }
        .stats-stripe-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
            text-align: center;
        }
        .stat-block {
            padding: 0 16px;
            border-right: 1px solid var(--border-color);
        }
        .stat-block:last-child {
            border-right: none;
        }
        .stat-num-val {
            font-size: 38px;
            font-weight: 900;
            color: var(--primary);
            line-height: 1.1;
            margin-bottom: 8px;
            font-variant-numeric: tabular-nums;
        }
        .stat-desc-title {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 4px;
        }
        .stat-desc-sub {
            font-size: 12px;
            color: var(--text-sub);
        }

        /* 9. 用户真实故事与信赖案例 */
        .stories-section {
            background-color: var(--bg-main);
        }
        .stories-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .story-card {
            background: #FFFFFF;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 32px;
            box-shadow: var(--shadow-sm);
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }
        .story-user-meta {
            display: flex;
            align-items: center;
            gap: 14px;
            margin-bottom: 18px;
        }
        .story-avatar-ph {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--primary);
            color: #FFFFFF;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 15px;
        }
        .story-author-info h4 {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-main);
        }
        .story-author-info span {
            font-size: 12px;
            color: var(--text-sub);
        }
        .story-body-quote {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 20px;
            font-style: italic;
        }
        .story-impact-tag {
            font-size: 12px;
            font-weight: 600;
            color: var(--primary);
            background: #F0F5F5;
            padding: 6px 12px;
            border-radius: 4px;
            display: inline-block;
        }

        /* 10. 竞品对比差异区 */
        .comparison-section {
            background-color: #FFFFFF;
            border-top: 1px solid var(--border-color);
        }
        .comparison-table-wrapper {
            overflow-x: auto;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            background: #FFFFFF;
            box-shadow: var(--shadow-sm);
        }
        .comparison-table {
            width: 100%;
            border-collapse: collapse;
            text-align: left;
        }
        .comparison-table th, .comparison-table td {
            padding: 18px 24px;
            border-bottom: 1px solid var(--border-color);
            font-size: 14px;
        }
        .comparison-table th {
            background-color: #F9FAFB;
            color: var(--text-main);
            font-weight: 700;
        }
        .comparison-table th.highlight-col {
            background-color: #EDF4F4;
            color: var(--primary);
            font-weight: 800;
            border-left: 1px solid var(--border-color);
            border-right: 1px solid var(--border-color);
        }
        .comparison-table td.highlight-col {
            background-color: rgba(15, 58, 58, 0.02);
            color: var(--primary);
            font-weight: 600;
            border-left: 1px solid var(--border-color);
            border-right: 1px solid var(--border-color);
        }
        .comparison-table tr:last-child td {
            border-bottom: none;
        }

        /* 11. 财务资讯与风控知识区 */
        .insights-section {
            background-color: var(--bg-main);
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
        }
        .insights-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .insight-card {
            background: #FFFFFF;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            overflow: hidden;
            display: flex;
            flex-direction: column;
            transition: all 0.3s ease;
        }
        .insight-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }
        .insight-thumb {
            width: 100%;
            height: 190px;
            object-fit: cover;
        }
        .insight-content-box {
            padding: 24px;
            display: flex;
            flex-direction: column;
            flex-grow: 1;
        }
        .insight-category {
            font-size: 12px;
            font-weight: 700;
            color: var(--primary);
            text-transform: uppercase;
            margin-bottom: 8px;
        }
        .insight-title {
            font-size: 17px;
            font-weight: 700;
            color: var(--text-main);
            line-height: 1.4;
            margin-bottom: 12px;
        }
        .insight-summary {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.65;
            margin-bottom: 16px;
            flex-grow: 1;
        }
        .insight-meta-date {
            font-size: 12px;
            color: var(--text-sub);
            border-top: 1px solid var(--border-color);
            padding-top: 12px;
        }

        /* 12. FAQ 交互式手风琴区 */
        .faq-section {
            background-color: #FFFFFF;
        }
        .faq-accordion-container {
            max-width: 820px;
            margin: 0 auto;
        }
        .faq-accordion-item {
            border: 1px solid var(--border-color);
            border-radius: var(--radius-sm);
            margin-bottom: 16px;
            background: #FFFFFF;
            overflow: hidden;
            transition: border-color 0.2s ease;
        }
        .faq-accordion-item.active {
            border-color: var(--primary);
        }
        .faq-accordion-header {
            padding: 20px 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
            user-select: none;
            background: #FFFFFF;
        }
        .faq-accordion-header h3 {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-main);
        }
        .faq-toggle-icon {
            font-size: 18px;
            font-weight: 600;
            color: var(--primary);
            transition: transform 0.25s ease;
        }
        .faq-accordion-item.active .faq-toggle-icon {
            transform: rotate(45deg);
        }
        .faq-accordion-body {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease, padding 0.3s ease;
            background-color: #F9FAFB;
        }
        .faq-accordion-item.active .faq-accordion-body {
            max-height: 240px;
            padding: 20px 24px;
            border-top: 1px solid var(--border-color);
        }
        .faq-accordion-body p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
        }

        /* 13. 终极转化与服务保障条 */
        .final-cta-section {
            background: linear-gradient(180deg, #F3F5F5 0%, #E8F0EF 100%);
            border-top: 1px solid var(--border-color);
            padding: 96px 0;
        }
        .guarantee-bar {
            display: flex;
            justify-content: space-around;
            gap: 24px;
            margin-bottom: 56px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(15, 58, 58, 0.15);
            flex-wrap: wrap;
        }
        .guarantee-item {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .guarantee-item svg {
            width: 24px;
            height: 24px;
            color: var(--primary);
        }
        .guarantee-item span {
            font-size: 15px;
            font-weight: 700;
            color: var(--primary);
        }
        .final-action-card {
            background: #FFFFFF;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 56px 48px;
            text-align: center;
            max-width: 860px;
            margin: 0 auto;
            box-shadow: var(--shadow-lg);
        }
        .final-action-card h2 {
            font-size: 32px;
            font-weight: 800;
            color: var(--primary);
            margin-bottom: 14px;
        }
        .final-action-card p {
            font-size: 16px;
            color: var(--text-muted);
            max-width: 600px;
            margin: 0 auto 36px;
        }
        .action-form-inline {
            display: flex;
            gap: 12px;
            justify-content: center;
            max-width: 520px;
            margin: 0 auto 20px;
        }
        .action-input-field {
            flex-grow: 1;
            padding: 14px 18px;
            font-size: 15px;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-sm);
            outline: none;
            transition: border-color 0.2s;
        }
        .action-input-field:focus {
            border-color: var(--primary);
        }
        .action-btn-submit {
            background-color: var(--primary);
            color: #FFFFFF;
            border: none;
            padding: 14px 28px;
            font-size: 15px;
            font-weight: 600;
            border-radius: var(--radius-sm);
            cursor: pointer;
            transition: all 0.2s;
            white-space: nowrap;
        }
        .action-btn-submit:hover {
            background-color: var(--primary-light);
        }
        .security-micro-badge {
            font-size: 12px;
            color: var(--text-sub);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        /* 页脚 */
        .site-footer {
            background-color: var(--primary-dark);
            color: #A3B8B8;
            padding: 64px 0 32px;
            border-top: 1px solid var(--border-dark);
            font-size: 14px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.5fr;
            gap: 48px;
            margin-bottom: 48px;
        }
        .footer-brand h4 {
            color: #FFFFFF;
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 14px;
        }
        .footer-brand p {
            font-size: 13px;
            line-height: 1.7;
            color: #8C9EA0;
            margin-bottom: 16px;
        }
        .footer-col h5 {
            color: #FFFFFF;
            font-size: 15px;
            font-weight: 700;
            margin-bottom: 16px;
        }
        .footer-col ul {
            list-style: none;
        }
        .footer-col ul li {
            margin-bottom: 10px;
        }
        .footer-col ul li a {
            color: #8C9EA0;
            transition: color 0.2s;
        }
        .footer-col ul li a:hover {
            color: #FFFFFF;
        }
        .footer-contact-item {
            font-size: 13px;
            margin-bottom: 8px;
            color: #8C9EA0;
        }
        .footer-bottom {
            border-top: 1px solid var(--border-dark);
            padding-top: 32px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 13px;
            color: #718486;
            flex-wrap: wrap;
            gap: 16px;
        }
        .footer-bottom a {
            color: #718486;
        }
        .footer-bottom a:hover {
            color: #A3B8B8;
        }

        /* 移动端菜单抽屉样式 */
        .mobile-menu-btn {
            display: none;
            background: none;
            border: none;
            cursor: pointer;
            padding: 8px;
        }
        .mobile-menu-btn span {
            display: block;
            width: 24px;
            height: 2px;
            background-color: var(--primary);
            margin: 5px 0;
            transition: all 0.3s;
        }

        /* 响应式断点 */
        @media (max-width: 1024px) {
            .hero-title {
                font-size: 38px;
            }
            .six-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .matrix-cards-grid {
                grid-template-columns: 1fr;
            }
            .matrix-card.elevated {
                transform: none;
            }
            .scene-container-box {
                grid-template-columns: 1fr;
            }
            .stats-stripe-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 24px;
            }
            .stat-block:nth-child(2) {
                border-right: none;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 768px) {
            .top-notice-bar {
                display: none;
            }
            .mobile-menu-btn {
                display: block;
            }
            .nav-links {
                position: fixed;
                top: 72px;
                left: 0;
                width: 100%;
                background: #FFFFFF;
                flex-direction: column;
                padding: 24px;
                gap: 16px;
                box-shadow: var(--shadow-md);
                display: none;
            }
            .nav-links.open {
                display: flex;
            }
            .nav-cta-btn {
                display: none;
            }
            .hero-grid {
                grid-template-columns: 1fr;
            }
            .arch-split-grid {
                grid-template-columns: 1fr;
            }
            .six-grid {
                grid-template-columns: 1fr;
            }
            .security-cards-grid {
                grid-template-columns: 1fr;
            }
            .stories-grid {
                grid-template-columns: 1fr;
            }
            .insights-grid {
                grid-template-columns: 1fr;
            }
            .action-form-inline {
                flex-direction: column;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }