/* roulang page: index */
:root {
            --primary: #0052D9;
            --primary-hover: #003CAB;
            --primary-light: #EBF3FF;
            --primary-active: #166FF7;
            --success: #2BA471;
            --warning: #E37318;
            --danger: #D54941;
            --dark-navy: #0B1528;
            --footer-bg: #0B132B;
            --bg-page: #F7F9FC;
            --bg-white: #FFFFFF;
            --text-heading: #0F172A;
            --text-body: #334155;
            --text-muted: #64748B;
            --border-light: rgba(226, 232, 240, 0.85);
            --border-hover: rgba(0, 82, 217, 0.3);
            --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.04);
            --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
            --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.08), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --container-max: 1280px;
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }

        body {
            font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Segoe UI", sans-serif;
            background-color: var(--bg-page);
            color: var(--text-body);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }

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

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

        button, input {
            font-family: inherit;
        }

        .container {
            width: 100%;
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 clamp(1rem, 3.5vw, 2rem);
        }

        /* 顶部通栏 */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(10px);
            border-bottom: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
        }

        .top-notice {
            background-color: #EEF2F8;
            font-size: 12px;
            color: var(--text-muted);
            padding: 6px 0;
            border-bottom: 1px solid rgba(226, 232, 240, 0.6);
        }

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

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

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

        .brand-symbol {
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, var(--primary) 0%, #166FF7 100%);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 18px;
            font-weight: 800;
            box-shadow: 0 4px 10px rgba(0, 82, 217, 0.25);
        }

        .main-menu {
            display: flex;
            align-items: center;
            list-style: none;
            gap: 28px;
        }

        .main-menu a {
            font-size: 15px;
            font-weight: 500;
            color: var(--text-body);
            position: relative;
            padding: 8px 0;
        }

        .main-menu a:hover,
        .main-menu a.active {
            color: var(--primary);
        }

        .main-menu a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background-color: var(--primary);
            transition: var(--transition);
        }

        .main-menu a:hover::after,
        .main-menu a.active::after {
            width: 100%;
        }

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

        /* 通用按钮 */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 10px 24px;
            font-size: 15px;
            font-weight: 600;
            border-radius: var(--radius-sm);
            transition: var(--transition);
            cursor: pointer;
            border: 1px solid transparent;
            white-space: nowrap;
        }

        .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 16px rgba(0, 82, 217, 0.3);
        }

        .btn-outline {
            border-color: var(--primary);
            color: var(--primary);
            background-color: transparent;
        }

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

        .btn-lg {
            padding: 14px 32px;
            font-size: 16px;
            border-radius: var(--radius-md);
        }

        /* 移动端菜单按钮 */
        .mobile-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 24px;
            cursor: pointer;
            color: var(--text-heading);
        }

        /* Section 通用规范 */
        .section-block {
            padding: 96px 0;
            position: relative;
        }

        .section-block.bg-alt {
            background-color: #FFFFFF;
            border-top: 1px solid var(--border-light);
            border-bottom: 1px solid var(--border-light);
        }

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

        .section-tag {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            text-transform: uppercase;
            color: var(--primary);
            background-color: var(--primary-light);
            padding: 4px 14px;
            border-radius: 20px;
            margin-bottom: 14px;
            letter-spacing: 0.5px;
        }

        .section-title {
            font-size: clamp(24px, 3vw, 36px);
            font-weight: 700;
            color: var(--text-heading);
            margin-bottom: 18px;
            line-height: 1.35;
        }

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

        /* 卡片基础 */
        .feature-card {
            background: var(--bg-white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            padding: 32px 28px;
            box-shadow: var(--shadow-md);
            transition: var(--transition);
            display: flex;
            flex-direction: column;
            position: relative;
        }

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

        /* 1. Hero 板块 */
        .hero-section {
            padding: 60px 0 90px 0;
            background: radial-gradient(circle at 85% 15%, rgba(0, 82, 217, 0.08) 0%, rgba(247, 249, 252, 0) 70%), linear-gradient(180deg, #F0F4FA 0%, #F7F9FC 100%);
            position: relative;
            overflow: hidden;
            border-bottom: 1px solid var(--border-light);
        }

        .hero-grid {
            display: grid;
            grid-template-columns: 1.15fr 0.85fr;
            gap: 48px;
            align-items: center;
        }

        .hero-badge-row {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 20px;
            flex-wrap: wrap;
        }

        .badge-status {
            background: #E8F7F0;
            color: var(--success);
            font-size: 13px;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 4px;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            border: 1px solid rgba(43, 164, 113, 0.2);
        }

        .badge-status::before {
            content: '';
            width: 8px;
            height: 8px;
            background-color: var(--success);
            border-radius: 50%;
            display: inline-block;
        }

        .hero-title {
            font-size: clamp(30px, 3.8vw, 48px);
            font-weight: 800;
            color: var(--text-heading);
            line-height: 1.25;
            margin-bottom: 22px;
            letter-spacing: -0.5px;
        }

        .hero-lead {
            font-size: 16px;
            color: var(--text-body);
            line-height: 1.8;
            margin-bottom: 32px;
        }

        .hero-actions {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
            margin-bottom: 36px;
        }

        .group-status-box {
            background: #FFFFFF;
            border: 1px solid #D6E4FF;
            border-radius: var(--radius-md);
            padding: 16px 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            box-shadow: 0 4px 14px rgba(0, 82, 217, 0.06);
        }

        .group-meta {
            display: flex;
            align-items: center;
            gap: 14px;
        }

        .avatar-pile {
            display: flex;
        }

        .avatar-pile span {
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: #0052D9;
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 11px;
            font-weight: 700;
            border: 2px solid #fff;
            margin-left: -8px;
        }

        .avatar-pile span:first-child {
            margin-left: 0;
            background: #166FF7;
        }

        .avatar-pile span:nth-child(2) {
            background: #2BA471;
        }

        .group-text {
            font-size: 13px;
            color: var(--text-muted);
        }

        .group-text strong {
            color: var(--text-heading);
            font-size: 14px;
        }

        .hero-visual {
            position: relative;
        }

        .hero-card-display {
            background: #FFFFFF;
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-lg);
            overflow: hidden;
            position: relative;
        }

        .hero-card-header {
            background: #F1F5F9;
            padding: 12px 18px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            border-bottom: 1px solid var(--border-light);
        }

        .dot-controls {
            display: flex;
            gap: 6px;
        }

        .dot-controls span {
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: #CBD5E1;
        }

        .dot-controls span:first-child { background: #FF5F56; }
        .dot-controls span:nth-child(2) { background: #FFBD2E; }
        .dot-controls span:nth-child(3) { background: #27C93F; }

        .system-status-indicator {
            font-size: 12px;
            color: var(--text-muted);
            font-weight: 500;
        }

        .hero-img-wrap {
            position: relative;
            aspect-ratio: 16/10;
            background-color: #0B1528;
            overflow: hidden;
        }

        .hero-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            opacity: 0.95;
            transition: var(--transition);
        }

        .hero-img-wrap:hover img {
            transform: scale(1.02);
        }

        .floating-stat-overlay {
            position: absolute;
            bottom: 16px;
            left: 16px;
            right: 16px;
            background: rgba(11, 21, 40, 0.85);
            backdrop-filter: blur(8px);
            border-radius: var(--radius-sm);
            padding: 12px 16px;
            display: flex;
            justify-content: space-around;
            color: #FFFFFF;
            border: 1px solid rgba(255, 255, 255, 0.15);
        }

        .stat-mini-item {
            text-align: center;
        }

        .stat-mini-item .num {
            font-size: 16px;
            font-weight: 700;
            color: #4BA2FF;
            display: block;
        }

        .stat-mini-item .lbl {
            font-size: 11px;
            color: #94A3B8;
        }

        /* 2. 核心痛点与空域管控挑战区 */
        .pain-points-grid {
            display: grid;
            grid-template-columns: 1fr 1.3fr;
            gap: 40px;
            align-items: center;
        }

        .pain-lead-box {
            background: linear-gradient(135deg, #0B1528 0%, #152238 100%);
            color: #FFFFFF;
            padding: 44px;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-lg);
        }

        .pain-lead-box h3 {
            font-size: 26px;
            font-weight: 700;
            margin-bottom: 20px;
            line-height: 1.4;
            color: #FFFFFF;
        }

        .pain-lead-box p {
            font-size: 15px;
            color: #CBD5E1;
            line-height: 1.8;
            margin-bottom: 24px;
        }

        .pain-tag-pill {
            display: inline-block;
            background: rgba(227, 115, 24, 0.2);
            color: #FFAA5B;
            padding: 4px 12px;
            border-radius: 4px;
            font-size: 13px;
            font-weight: 600;
            margin-bottom: 16px;
            border: 1px solid rgba(227, 115, 24, 0.3);
        }

        .pain-cards-stack {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .pain-sub-card {
            background: #FFFFFF;
            border: 1px solid var(--border-light);
            border-left: 4px solid var(--warning);
            border-radius: var(--radius-sm);
            padding: 22px 24px;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
        }

        .pain-sub-card:hover {
            transform: translateX(4px);
            box-shadow: var(--shadow-md);
        }

        .pain-sub-card h4 {
            font-size: 18px;
            color: var(--text-heading);
            margin-bottom: 8px;
            display: flex;
            align-items: center;
            justify-content: space-between;
        }

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

        /* 3. 架构与全栈介绍区 */
        .overview-layout {
            display: grid;
            grid-template-columns: 1fr 1.1fr;
            gap: 48px;
            align-items: center;
        }

        .overview-image-side {
            position: relative;
        }

        .overview-img-container {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
            border: 1px solid var(--border-light);
            background: #fff;
        }

        .overview-img-container img {
            width: 100%;
            height: auto;
            object-fit: cover;
        }

        .tech-spec-bar {
            margin-top: 24px;
            background: #F1F5F9;
            border-radius: var(--radius-md);
            padding: 16px 20px;
            border: 1px solid var(--border-light);
            font-size: 13px;
            color: var(--text-body);
            line-height: 1.6;
        }

        .spec-highlight {
            font-weight: 700;
            color: var(--primary);
        }

        .overview-content-side h3 {
            font-size: 28px;
            font-weight: 700;
            color: var(--text-heading);
            margin-bottom: 20px;
            line-height: 1.35;
        }

        .overview-content-side p {
            font-size: 15px;
            color: var(--text-body);
            line-height: 1.8;
            margin-bottom: 24px;
        }

        .overview-feature-list {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .overview-feature-list li {
            font-size: 14px;
            display: flex;
            align-items: flex-start;
            gap: 10px;
            color: var(--text-body);
        }

        .bullet-icon {
            width: 18px;
            height: 18px;
            border-radius: 50%;
            background: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 11px;
            font-weight: 800;
            margin-top: 2px;
            flex-shrink: 0;
        }

        /* 4. 六大核心技术优势网格 */
        .grid-3x2 {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }

        .advantage-icon {
            width: 48px;
            height: 48px;
            border-radius: var(--radius-sm);
            background: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 20px;
        }

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

        .advantage-text {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.65;
        }

        /* 5. 热门标准化管理软件产品矩阵 */
        .products-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .product-card {
            background: #FFFFFF;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-md);
            display: flex;
            flex-direction: column;
            transition: var(--transition);
        }

        .product-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-lg);
            border-color: var(--border-hover);
        }

        .product-card-banner {
            padding: 24px;
            background: linear-gradient(135deg, #F8FAFC 0%, #EEF2F8 100%);
            border-bottom: 1px solid var(--border-light);
        }

        .product-tag {
            font-size: 12px;
            font-weight: 600;
            background: var(--primary);
            color: #FFFFFF;
            padding: 3px 8px;
            border-radius: 3px;
            display: inline-block;
            margin-bottom: 8px;
        }

        .product-name {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-heading);
            margin-bottom: 6px;
        }

        .product-desc {
            font-size: 13px;
            color: var(--text-muted);
        }

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

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

        .spec-list li {
            font-size: 13px;
            color: var(--text-body);
            padding: 8px 0;
            border-bottom: 1px dashed var(--border-light);
            display: flex;
            justify-content: space-between;
        }

        .spec-list li span:first-child {
            color: var(--text-muted);
        }

        .spec-list li span:last-child {
            font-weight: 600;
            color: var(--text-heading);
        }

        /* 6. 深色沉浸式数字孪生理念区 */
        .section-dark {
            background-color: var(--dark-navy);
            color: #FFFFFF;
            padding: 96px 0;
            position: relative;
            background-image: radial-gradient(rgba(0, 82, 217, 0.15) 1px, transparent 1px);
            background-size: 32px 32px;
        }

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

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

        .section-dark .section-tag {
            background-color: rgba(0, 82, 217, 0.3);
            color: #70B6FF;
        }

        .architecture-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            position: relative;
            margin-top: 48px;
        }

        .arch-step-box {
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: var(--radius-md);
            padding: 28px 22px;
            transition: var(--transition);
            backdrop-filter: blur(4px);
        }

        .arch-step-box:hover {
            background: rgba(255, 255, 255, 0.08);
            border-color: rgba(0, 82, 217, 0.6);
            transform: translateY(-4px);
        }

        .arch-index {
            font-size: 13px;
            font-weight: 700;
            color: #388BFD;
            margin-bottom: 12px;
            letter-spacing: 1px;
        }

        .arch-title {
            font-size: 17px;
            font-weight: 700;
            color: #FFFFFF;
            margin-bottom: 12px;
        }

        .arch-desc {
            font-size: 13px;
            color: #94A3B8;
            line-height: 1.6;
        }

        /* 7. 流程步骤演示 */
        .process-timeline {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            position: relative;
        }

        .timeline-step-card {
            background: #FFFFFF;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            padding: 28px 24px;
            box-shadow: var(--shadow-sm);
            position: relative;
        }

        .step-number-tag {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: var(--primary);
            color: #FFFFFF;
            font-size: 15px;
            font-weight: 700;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 16px;
        }

        .step-heading {
            font-size: 17px;
            font-weight: 700;
            color: var(--text-heading);
            margin-bottom: 10px;
        }

        .step-detail {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* 8. 标杆行业客户用户故事 */
        .case-studies-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .case-card {
            background: #FFFFFF;
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-md);
            display: flex;
            flex-direction: column;
            transition: var(--transition);
        }

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

        .case-cover-img {
            height: 190px;
            overflow: hidden;
            background-color: #E2E8F0;
        }

        .case-cover-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition);
        }

        .case-card:hover .case-cover-img img {
            transform: scale(1.05);
        }

        .case-body {
            padding: 24px;
            display: flex;
            flex-direction: column;
            flex-grow: 1;
        }

        .case-industry {
            font-size: 12px;
            color: var(--primary);
            font-weight: 600;
            margin-bottom: 8px;
        }

        .case-title {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-heading);
            margin-bottom: 12px;
            line-height: 1.4;
        }

        .case-story {
            font-size: 13px;
            color: var(--text-body);
            line-height: 1.65;
            margin-bottom: 18px;
            flex-grow: 1;
        }

        .case-metric-highlight {
            background: #F8FAFC;
            border-radius: var(--radius-sm);
            padding: 10px 14px;
            border-left: 3px solid var(--success);
            font-size: 12px;
            color: var(--text-muted);
        }

        .case-metric-highlight strong {
            color: var(--text-heading);
            font-size: 13px;
        }

        /* 9. 关键数据指标统计条 */
        .metrics-bar-section {
            background: linear-gradient(90deg, #0052D9 0%, #166FF7 100%);
            padding: 56px 0;
            color: #FFFFFF;
        }

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

        .metric-cell {
            padding: 0 16px;
            border-right: 1px solid rgba(255, 255, 255, 0.2);
        }

        .metric-cell:last-child {
            border-right: none;
        }

        .metric-value {
            font-size: clamp(32px, 3.5vw, 44px);
            font-weight: 800;
            line-height: 1;
            margin-bottom: 10px;
            color: #FFFFFF;
            font-variant-numeric: tabular-nums;
        }

        .metric-label {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.85);
            font-weight: 500;
        }

        /* 10. 行业客户评价区 */
        .testimonials-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }

        .testimonial-card {
            background: #FFFFFF;
            border-radius: var(--radius-md);
            padding: 30px;
            box-shadow: var(--shadow-md);
            border: 1px solid var(--border-light);
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }

        .stars-row {
            color: #F59E0B;
            font-size: 14px;
            margin-bottom: 16px;
            letter-spacing: 2px;
        }

        .testimonial-quote {
            font-size: 14px;
            color: var(--text-body);
            line-height: 1.7;
            margin-bottom: 24px;
            font-style: normal;
        }

        .testimonial-author {
            display: flex;
            align-items: center;
            gap: 14px;
        }

        .author-icon-avatar {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: #E2E8F0;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            color: var(--text-heading);
            font-size: 15px;
            border: 2px solid var(--primary-light);
        }

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

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

        /* 11. 资讯动态摘要区 */
        .news-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }

        .news-card {
            background: #FFFFFF;
            border-radius: var(--radius-md);
            border: 1px solid var(--border-light);
            padding: 26px;
            box-shadow: var(--shadow-sm);
            display: flex;
            flex-direction: column;
            transition: var(--transition);
        }

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

        .news-meta {
            font-size: 12px;
            color: var(--text-muted);
            margin-bottom: 12px;
            display: flex;
            justify-content: space-between;
        }

        .news-title {
            font-size: 17px;
            font-weight: 700;
            color: var(--text-heading);
            margin-bottom: 12px;
            line-height: 1.45;
        }

        .news-excerpt {
            font-size: 13px;
            color: var(--text-body);
            line-height: 1.65;
            margin-bottom: 18px;
            flex-grow: 1;
        }

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

        /* 12. FAQ 手风琴答疑区 */
        .faq-accordion-list {
            max-width: 860px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .faq-item {
            background: #FFFFFF;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
        }

        .faq-item:hover {
            border-color: rgba(0, 82, 217, 0.4);
        }

        .faq-item details {
            width: 100%;
        }

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

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

        .faq-icon-arrow {
            width: 20px;
            height: 20px;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: transform 0.25s ease;
            color: var(--primary);
            font-weight: 800;
            font-size: 18px;
        }

        .faq-item details[open] summary .faq-icon-arrow {
            transform: rotate(45deg);
        }

        .faq-content {
            padding: 0 24px 22px 24px;
            font-size: 14px;
            color: var(--text-body);
            line-height: 1.7;
            border-top: 1px solid rgba(226, 232, 240, 0.5);
            padding-top: 16px;
        }

        /* 13. 全宽行动呼吁与示范预约区 */
        .cta-section-wrapper {
            background: linear-gradient(135deg, #0B1528 0%, #162C4E 100%);
            border-radius: var(--radius-lg);
            padding: 64px 48px;
            color: #FFFFFF;
            box-shadow: var(--shadow-lg);
            border: 1px solid rgba(255, 255, 255, 0.1);
        }

        .cta-grid {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 48px;
            align-items: center;
        }

        .cta-text-side h3 {
            font-size: clamp(24px, 3vw, 34px);
            font-weight: 800;
            margin-bottom: 18px;
            line-height: 1.3;
        }

        .cta-text-side p {
            font-size: 15px;
            color: #CBD5E1;
            line-height: 1.75;
            margin-bottom: 24px;
        }

        .form-reservation {
            background: #FFFFFF;
            padding: 32px;
            border-radius: var(--radius-md);
            color: var(--text-heading);
            box-shadow: var(--shadow-lg);
        }

        .form-reservation h4 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 16px;
            text-align: center;
            color: var(--text-heading);
        }

        .form-group {
            margin-bottom: 16px;
        }

        .form-group label {
            display: block;
            font-size: 13px;
            font-weight: 600;
            margin-bottom: 6px;
            color: var(--text-body);
        }

        .form-input {
            width: 100%;
            padding: 10px 14px;
            border-radius: var(--radius-sm);
            border: 1px solid #CBD5E1;
            font-size: 14px;
            transition: var(--transition);
        }

        .form-input:focus {
            outline: none;
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(0, 82, 217, 0.15);
        }

        .form-notice {
            font-size: 11px;
            color: var(--text-muted);
            margin-top: 10px;
            text-align: center;
        }

        /* 底部页脚 */
        .site-footer {
            background-color: var(--footer-bg);
            color: #94A3B8;
            padding: 72px 0 28px 0;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            font-size: 13px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
            gap: 40px;
            margin-bottom: 48px;
        }

        .footer-brand .brand-logo {
            color: #FFFFFF;
            margin-bottom: 16px;
        }

        .footer-intro {
            line-height: 1.7;
            margin-bottom: 20px;
            color: #94A3B8;
        }

        .footer-col h5 {
            font-size: 15px;
            font-weight: 700;
            color: #FFFFFF;
            margin-bottom: 20px;
            letter-spacing: 0.5px;
        }

        .footer-links {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

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

        .footer-contact-list {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .footer-contact-list li {
            display: flex;
            gap: 8px;
            line-height: 1.5;
        }

        .footer-bottom {
            padding-top: 28px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 16px;
            font-size: 12px;
        }

        /* 响应式断点控制 */
        @media (max-width: 1024px) {
            .hero-grid,
            .pain-points-grid,
            .overview-layout,
            .cta-grid {
                grid-template-columns: 1fr;
                gap: 40px;
            }

            .grid-3x2,
            .products-grid,
            .case-studies-grid,
            .testimonials-grid,
            .news-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .architecture-grid,
            .process-timeline,
            .metrics-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }

            .metric-cell {
                border-right: none;
                border-bottom: 1px solid rgba(255, 255, 255, 0.15);
                padding: 16px 0;
            }

            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 768px) {
            .section-block {
                padding: 56px 0;
            }

            .top-notice {
                display: none;
            }

            .main-menu {
                position: absolute;
                top: 72px;
                left: 0;
                right: 0;
                background: #FFFFFF;
                flex-direction: column;
                padding: 24px;
                gap: 16px;
                border-bottom: 1px solid var(--border-light);
                box-shadow: var(--shadow-md);
                display: none;
            }

            .main-menu.is-open {
                display: flex;
            }

            .mobile-toggle {
                display: block;
            }

            .header-actions .btn {
                display: none;
            }

            .grid-3x2,
            .products-grid,
            .case-studies-grid,
            .testimonials-grid,
            .news-grid,
            .architecture-grid,
            .process-timeline,
            .metrics-grid {
                grid-template-columns: 1fr;
            }

            .cta-section-wrapper {
                padding: 36px 20px;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }

            .footer-bottom {
                flex-direction: column;
                text-align: center;
                justify-content: center;
            }
        }