/* roulang page: index */
:root {
      --primary: #0F172A;
      --secondary: #10B981;
      --accent: #F97316;
      --bg-light: #F8FAFC;
      --bg-dark: #020617;
      --card-bg: #FFFFFF;
      --card-dark: #0B1329;
      --text-main: #0F172A;
      --text-muted: #64748B;
      --text-light: #F1F5F9;
      --border-light: #E2E8F0;
      --border-dark: rgba(255, 255, 255, 0.08);
      --radius-sm: 8px;
      --radius-md: 12px;
      --radius-lg: 20px;
      --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.05), 0 10px 15px -5px rgba(0, 0, 0, 0.03);
      --shadow-hover: 0 20px 25px -5px rgba(16, 185, 129, 0.12), 0 8px 10px -6px rgba(16, 185, 129, 0.08);
      --font-family: system-ui, -apple-system, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    }

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

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

    body {
      font-family: var(--font-family);
      background-color: var(--bg-light);
      color: var(--text-main);
      line-height: 1.75;
      -webkit-font-smoothing: antialiased;
      overflow-x: hidden;
    }

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

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

    button, input, select, textarea {
      font-family: inherit;
      font-size: inherit;
    }

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

    /* 顶部导航系统 */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(15, 23, 42, 0.94);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      border-bottom: 1px solid rgba(255, 255, 255, 0.1);
      transition: background 0.3s ease;
    }

    .header-topbar {
      border-bottom: 1px solid rgba(255, 255, 255, 0.06);
      font-size: 0.825rem;
      color: #94A3B8;
      padding: 8px 0;
    }

    .header-topbar .container {
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 12px;
    }

    .topbar-meta {
      display: flex;
      align-items: center;
      gap: 20px;
    }

    .topbar-meta span {
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }

    .status-dot {
      width: 8px;
      height: 8px;
      background-color: var(--secondary);
      border-radius: 50%;
      display: inline-block;
      box-shadow: 0 0 8px var(--secondary);
    }

    .header-navbar {
      padding: 14px 0;
    }

    .header-navbar .container {
      display: flex;
      justify-content: space-between;
      align-items: center;
    }

    .brand-logo {
      display: flex;
      align-items: center;
      gap: 12px;
      font-size: 1.35rem;
      font-weight: 700;
      color: #FFFFFF;
      letter-spacing: -0.01em;
    }

    .brand-logo .logo-icon {
      width: 36px;
      height: 36px;
      background: linear-gradient(135deg, var(--secondary), #059669);
      border-radius: 10px;
      display: flex;
      align-items: center;
      justify-content: center;
      color: #FFFFFF;
      font-weight: 800;
      font-size: 1.1rem;
      box-shadow: 0 4px 12px rgba(16, 185, 129, 0.3);
    }

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

    .nav-link {
      color: #CBD5E1;
      font-size: 0.95rem;
      font-weight: 500;
      position: relative;
      padding: 6px 0;
    }

    .nav-link:hover, .nav-link:focus-visible {
      color: var(--secondary);
      outline: none;
    }

    .nav-link::after {
      content: '';
      position: absolute;
      bottom: 0;
      left: 0;
      width: 0;
      height: 2px;
      background-color: var(--secondary);
      transition: width 0.25s ease;
    }

    .nav-link:hover::after {
      width: 100%;
    }

    .btn-nav-cta {
      background-color: var(--secondary);
      color: #FFFFFF;
      padding: 10px 22px;
      border-radius: var(--radius-sm);
      font-weight: 600;
      font-size: 0.925rem;
      display: inline-flex;
      align-items: center;
      gap: 8px;
      transition: transform 0.2s ease, background-color 0.2s ease, box-shadow 0.2s ease;
      box-shadow: 0 4px 14px rgba(16, 185, 129, 0.35);
    }

    .btn-nav-cta:hover {
      background-color: #059669;
      transform: translateY(-2px);
      box-shadow: 0 6px 20px rgba(16, 185, 129, 0.45);
    }

    .btn-nav-cta:focus-visible {
      outline: 2px solid #FFFFFF;
      outline-offset: 2px;
    }

    .mobile-menu-toggle {
      display: none;
      background: none;
      border: none;
      cursor: pointer;
      padding: 8px;
      color: #FFFFFF;
    }

    .mobile-menu-toggle span {
      display: block;
      width: 24px;
      height: 2px;
      background-color: #FFFFFF;
      margin: 5px 0;
      transition: transform 0.3s ease, opacity 0.3s ease;
    }

    /* 通用Section布局与样式体系 */
    .section-wrap {
      padding: 96px 0;
      position: relative;
    }

    .section-dark {
      background-color: var(--bg-dark);
      color: #FFFFFF;
    }

    .section-subtle {
      background-color: #F1F5F9;
      border-top: 1px solid var(--border-light);
      border-bottom: 1px solid var(--border-light);
    }

    .section-header {
      margin-bottom: 56px;
    }

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

    .section-header.text-left {
      text-align: left;
      max-width: 820px;
    }

    .badge-tag {
      display: inline-block;
      font-size: 0.825rem;
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 0.05em;
      padding: 6px 14px;
      border-radius: 9999px;
      background-color: rgba(16, 185, 129, 0.12);
      color: var(--secondary);
      border: 1px solid rgba(16, 185, 129, 0.25);
      margin-bottom: 14px;
    }

    .section-title {
      font-size: 2.15rem;
      font-weight: 700;
      line-height: 1.3;
      margin-bottom: 16px;
      color: inherit;
      position: relative;
    }

    .section-header.text-left .section-title {
      padding-left: 20px;
      border-left: 5px solid var(--secondary);
    }

    .section-desc {
      font-size: 1.05rem;
      color: var(--text-muted);
      line-height: 1.8;
    }

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

    /* 按钮规范 */
    .btn-primary {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      background-color: var(--accent);
      color: #FFFFFF;
      padding: 14px 30px;
      border-radius: var(--radius-sm);
      font-weight: 600;
      font-size: 1rem;
      border: 1px solid transparent;
      cursor: pointer;
      transition: all 0.25s ease;
      box-shadow: 0 4px 14px rgba(249, 115, 22, 0.35);
    }

    .btn-primary:hover {
      background-color: #EA580C;
      transform: translateY(-2px);
      box-shadow: 0 8px 24px rgba(249, 115, 22, 0.45);
    }

    .btn-secondary {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      background-color: rgba(255, 255, 255, 0.08);
      color: #FFFFFF;
      padding: 14px 28px;
      border-radius: var(--radius-sm);
      font-weight: 600;
      font-size: 1rem;
      border: 1px solid rgba(255, 255, 255, 0.2);
      cursor: pointer;
      transition: all 0.25s ease;
    }

    .btn-secondary:hover {
      background-color: rgba(255, 255, 255, 0.16);
      border-color: rgba(255, 255, 255, 0.35);
      transform: translateY(-2px);
    }

    /* 板块 01: Hero 斜切色块首屏 */
    .hero-section {
      position: relative;
      background: linear-gradient(135deg, #0F172A 0%, #1E293B 100%);
      color: #FFFFFF;
      padding: 100px 0 140px;
      overflow: hidden;
    }

    .hero-bg-overlay {
      position: absolute;
      inset: 0;
      opacity: 0.18;
      background-image: url('/assets/images/557e2d1e826db12f.png');
      background-size: cover;
      background-position: center;
      mix-blend-mode: overlay;
    }

    .hero-skew-shape {
      position: absolute;
      bottom: -60px;
      left: -5%;
      width: 110%;
      height: 120px;
      background-color: var(--bg-light);
      transform: rotate(-2deg);
      z-index: 2;
    }

    .hero-grid {
      position: relative;
      z-index: 3;
      display: grid;
      grid-template-columns: 1.15fr 0.85fr;
      gap: 48px;
      align-items: center;
    }

    .hero-badge-wrap {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      background: rgba(16, 185, 129, 0.12);
      border: 1px solid rgba(16, 185, 129, 0.3);
      padding: 6px 16px;
      border-radius: 9999px;
      color: #34D399;
      font-size: 0.875rem;
      font-weight: 600;
      margin-bottom: 24px;
    }

    .hero-title {
      font-size: 2.85rem;
      font-weight: 800;
      line-height: 1.22;
      letter-spacing: -0.02em;
      margin-bottom: 24px;
      background: linear-gradient(to right, #FFFFFF 60%, #A7F3D0 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    .hero-intro {
      font-size: 1.15rem;
      line-height: 1.8;
      color: #CBD5E1;
      margin-bottom: 36px;
    }

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

    .hero-feature-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 20px;
      font-size: 0.9rem;
      color: #94A3B8;
    }

    .hero-feature-tags span {
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }

    .hero-feature-tags span::before {
      content: '✓';
      color: var(--secondary);
      font-weight: bold;
    }

    /* 右侧仪表盘概念组件 */
    .hero-dashboard-card {
      background: rgba(15, 23, 42, 0.8);
      border: 1px solid rgba(255, 255, 255, 0.12);
      border-radius: var(--radius-lg);
      padding: 24px;
      box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
      position: relative;
    }

    .dashboard-header {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding-bottom: 16px;
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
      margin-bottom: 20px;
    }

    .dashboard-live-node {
      display: flex;
      align-items: center;
      gap: 8px;
      font-size: 0.85rem;
      color: #34D399;
      background: rgba(16, 185, 129, 0.1);
      padding: 4px 10px;
      border-radius: 20px;
    }

    .dashboard-stats-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 16px;
      margin-bottom: 20px;
    }

    .stat-pill {
      background: rgba(255, 255, 255, 0.03);
      border: 1px solid rgba(255, 255, 255, 0.06);
      border-radius: var(--radius-sm);
      padding: 14px;
    }

    .stat-pill .label {
      font-size: 0.8rem;
      color: #94A3B8;
      display: block;
      margin-bottom: 4px;
    }

    .stat-pill .val {
      font-size: 1.4rem;
      font-weight: 700;
      color: #FFFFFF;
    }

    .stat-pill .unit {
      font-size: 0.85rem;
      color: var(--secondary);
      margin-left: 4px;
    }

    .live-stream-box {
      background: rgba(2, 6, 23, 0.7);
      border-radius: var(--radius-sm);
      padding: 16px;
      font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
      font-size: 0.8rem;
      color: #A7F3D0;
      line-height: 1.6;
    }

    .stream-line {
      display: flex;
      justify-content: space-between;
      border-bottom: 1px dashed rgba(255, 255, 255, 0.06);
      padding: 6px 0;
    }

    .stream-line:last-child {
      border-bottom: none;
    }

    /* 板块 02: 软硬件集成与感知架构 */
    .arch-intro-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 56px;
      align-items: center;
    }

    .arch-layers-stack {
      display: flex;
      flex-direction: column;
      gap: 16px;
    }

    .layer-card {
      background: #FFFFFF;
      border: 1px solid var(--border-light);
      border-radius: var(--radius-md);
      padding: 20px 24px;
      display: flex;
      align-items: flex-start;
      gap: 18px;
      box-shadow: var(--shadow-sm);
      transition: transform 0.25s ease, border-color 0.25s ease;
    }

    .layer-card:hover {
      transform: translateX(8px);
      border-color: var(--secondary);
    }

    .layer-badge {
      background: #ECFDF5;
      color: var(--secondary);
      border: 1px solid rgba(16, 185, 129, 0.3);
      padding: 6px 12px;
      border-radius: var(--radius-sm);
      font-weight: 700;
      font-size: 0.85rem;
      white-space: nowrap;
    }

    .layer-card h4 {
      font-size: 1.15rem;
      margin-bottom: 6px;
      color: var(--primary);
    }

    .layer-card p {
      font-size: 0.925rem;
      color: var(--text-muted);
      line-height: 1.6;
    }

    .spec-sheet-panel {
      background: #0F172A;
      color: #FFFFFF;
      border-radius: var(--radius-lg);
      padding: 36px;
      position: relative;
    }

    .spec-header {
      font-size: 1.25rem;
      font-weight: 700;
      margin-bottom: 20px;
      padding-bottom: 12px;
      border-bottom: 1px solid rgba(255, 255, 255, 0.1);
      color: #34D399;
    }

    .spec-item-row {
      display: flex;
      justify-content: space-between;
      padding: 12px 0;
      border-bottom: 1px solid rgba(255, 255, 255, 0.05);
      font-size: 0.95rem;
    }

    .spec-item-row span:first-child {
      color: #94A3B8;
    }

    .spec-item-row span:last-child {
      font-weight: 600;
      color: #F8FAFC;
    }

    /* 板块 03: 核心技术优势（6 卡片非对称网格） */
    .features-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }

    .feature-card {
      background: #FFFFFF;
      border: 1px solid var(--border-light);
      border-radius: var(--radius-md);
      padding: 32px 28px;
      box-shadow: var(--shadow-sm);
      transition: all 0.3s ease;
      position: relative;
      overflow: hidden;
    }

    .feature-card::before {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 4px;
      background: transparent;
      transition: background 0.3s ease;
    }

    .feature-card:hover {
      transform: translateY(-6px);
      box-shadow: var(--shadow-hover);
      border-color: rgba(16, 185, 129, 0.4);
    }

    .feature-card:hover::before {
      background: var(--secondary);
    }

    .feature-num {
      font-size: 2.25rem;
      font-weight: 800;
      color: rgba(15, 23, 42, 0.08);
      position: absolute;
      top: 20px;
      right: 24px;
      line-height: 1;
      font-family: ui-monospace, monospace;
    }

    .feature-icon-box {
      width: 48px;
      height: 48px;
      border-radius: 12px;
      background: rgba(16, 185, 129, 0.1);
      display: flex;
      align-items: center;
      justify-content: center;
      margin-bottom: 20px;
      color: var(--secondary);
    }

    .feature-icon-box svg {
      width: 26px;
      height: 26px;
      fill: currentColor;
    }

    .feature-card h3 {
      font-size: 1.25rem;
      font-weight: 700;
      margin-bottom: 12px;
      color: var(--primary);
    }

    .feature-card p {
      font-size: 0.95rem;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* 板块 04: 智能终端硬件区 */
    .products-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 32px;
    }

    .product-col-card {
      background: #FFFFFF;
      border: 1px solid var(--border-light);
      border-radius: var(--radius-lg);
      overflow: hidden;
      display: flex;
      flex-direction: column;
      box-shadow: var(--shadow-sm);
      transition: transform 0.3s ease, box-shadow 0.3s ease;
    }

    .product-col-card:hover {
      transform: translateY(-6px);
      box-shadow: var(--shadow-hover);
    }

    .product-img-box {
      height: 220px;
      background-color: #0F172A;
      position: relative;
      overflow: hidden;
    }

    .product-img-box img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.4s ease;
    }

    .product-col-card:hover .product-img-box img {
      transform: scale(1.06);
    }

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

    .product-body h3 {
      font-size: 1.3rem;
      margin-bottom: 12px;
      color: var(--primary);
    }

    .product-desc {
      font-size: 0.95rem;
      color: var(--text-muted);
      margin-bottom: 20px;
      line-height: 1.65;
    }

    .product-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      margin-bottom: 24px;
    }

    .product-tags span {
      background: #F1F5F9;
      color: #475569;
      font-size: 0.8rem;
      font-weight: 500;
      padding: 4px 10px;
      border-radius: 6px;
    }

    .product-action {
      margin-top: auto;
      border-top: 1px solid var(--border-light);
      padding-top: 18px;
    }

    .product-action .btn-link {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      color: var(--secondary);
      font-weight: 600;
      font-size: 0.95rem;
    }

    .product-action .btn-link:hover {
      color: #059669;
    }

    /* 板块 05: 拓扑视窗大屏演示 */
    .screen-stage-wrapper {
      background: #0B1329;
      border: 1px solid rgba(255, 255, 255, 0.1);
      border-radius: var(--radius-lg);
      padding: 28px;
      box-shadow: 0 30px 60px rgba(0, 0, 0, 0.6);
    }

    .stage-window-bar {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding-bottom: 18px;
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
      margin-bottom: 24px;
    }

    .window-dots {
      display: flex;
      gap: 8px;
    }

    .window-dots span {
      width: 12px;
      height: 12px;
      border-radius: 50%;
      display: inline-block;
    }

    .dot-red { background-color: #EF4444; }
    .dot-yellow { background-color: #F59E0B; }
    .dot-green { background-color: #10B981; }

    .window-tabs {
      display: flex;
      gap: 12px;
    }

    .tab-pill {
      background: rgba(255, 255, 255, 0.06);
      color: #94A3B8;
      border: 1px solid rgba(255, 255, 255, 0.1);
      padding: 6px 16px;
      border-radius: 6px;
      font-size: 0.85rem;
      cursor: pointer;
    }

    .tab-pill.active {
      background: var(--secondary);
      color: #FFFFFF;
      border-color: var(--secondary);
    }

    .stage-canvas {
      display: grid;
      grid-template-columns: 2fr 1fr;
      gap: 24px;
      align-items: stretch;
    }

    .screen-main-view {
      position: relative;
      border-radius: var(--radius-md);
      overflow: hidden;
      min-height: 420px;
      background-color: #020617;
      border: 1px solid rgba(255, 255, 255, 0.06);
    }

    .screen-main-view img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      opacity: 0.9;
    }

    .screen-sidebar-metrics {
      display: flex;
      flex-direction: column;
      gap: 16px;
    }

    .metric-gauge-card {
      background: rgba(15, 23, 42, 0.7);
      border: 1px solid rgba(255, 255, 255, 0.08);
      border-radius: var(--radius-md);
      padding: 20px;
    }

    .metric-gauge-card h5 {
      font-size: 0.9rem;
      color: #94A3B8;
      margin-bottom: 8px;
    }

    .metric-gauge-card .metric-val {
      font-size: 1.8rem;
      font-weight: 700;
      color: #34D399;
      font-family: ui-monospace, monospace;
    }

    .bar-meter {
      height: 6px;
      background: rgba(255, 255, 255, 0.1);
      border-radius: 9999px;
      margin-top: 10px;
      overflow: hidden;
    }

    .bar-meter-fill {
      height: 100%;
      background: var(--secondary);
      border-radius: 9999px;
    }

    /* 板块 06: 数字孪生落地理念 */
    .philosophy-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 60px;
      align-items: center;
    }

    .philosophy-text-lead {
      font-size: 1.35rem;
      font-weight: 600;
      line-height: 1.6;
      color: #F8FAFC;
      margin-bottom: 24px;
    }

    .philosophy-bullets {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 18px;
    }

    .philosophy-bullets li {
      display: flex;
      align-items: flex-start;
      gap: 14px;
      font-size: 1rem;
      color: #94A3B8;
    }

    .philosophy-bullets li strong {
      color: #FFFFFF;
      display: block;
      margin-bottom: 2px;
    }

    .bullet-check {
      width: 22px;
      height: 22px;
      border-radius: 50%;
      background: rgba(16, 185, 129, 0.2);
      border: 1px solid var(--secondary);
      color: var(--secondary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 0.75rem;
      flex-shrink: 0;
      margin-top: 3px;
    }

    .philosophy-visual-box {
      background: rgba(255, 255, 255, 0.03);
      border: 1px solid rgba(255, 255, 255, 0.1);
      border-radius: var(--radius-lg);
      padding: 32px;
      position: relative;
    }

    /* 板块 07: 行业解决方案场景 */
    .scenarios-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 30px;
    }

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

    .scenario-header-img {
      height: 200px;
      position: relative;
    }

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

    .scenario-tag {
      position: absolute;
      top: 14px;
      left: 14px;
      background: rgba(15, 23, 42, 0.85);
      color: #A7F3D0;
      padding: 4px 12px;
      border-radius: 6px;
      font-size: 0.8rem;
      font-weight: 600;
      backdrop-filter: blur(4px);
    }

    .scenario-content {
      padding: 24px;
      flex: 1;
      display: flex;
      flex-direction: column;
    }

    .scenario-content h3 {
      font-size: 1.25rem;
      margin-bottom: 12px;
      color: var(--primary);
    }

    .scenario-item-block {
      margin-top: 12px;
      font-size: 0.9rem;
      line-height: 1.6;
    }

    .scenario-item-block strong {
      color: var(--primary);
      display: inline-block;
      margin-right: 6px;
    }

    .scenario-kpi {
      margin-top: 18px;
      padding-top: 14px;
      border-top: 1px dashed var(--border-light);
      color: var(--secondary);
      font-weight: 700;
      font-size: 0.95rem;
    }

    /* 板块 08: 关键量化数据条 */
    .metric-strip-section {
      background: linear-gradient(90deg, #0F172A 0%, #1E293B 100%);
      color: #FFFFFF;
      padding: 60px 0;
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    }

    .metric-strip-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 32px;
      text-align: center;
    }

    .metric-strip-col {
      padding: 10px 16px;
      border-right: 1px solid rgba(255, 255, 255, 0.08);
    }

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

    .strip-big-number {
      font-size: 3.2rem;
      font-weight: 800;
      color: #34D399;
      font-family: ui-monospace, monospace;
      line-height: 1.1;
      margin-bottom: 8px;
    }

    .strip-big-number span {
      font-size: 1.5rem;
      font-weight: 600;
      margin-left: 2px;
    }

    .strip-title {
      font-size: 1.05rem;
      font-weight: 600;
      color: #F8FAFC;
      margin-bottom: 4px;
    }

    .strip-note {
      font-size: 0.85rem;
      color: #94A3B8;
    }

    /* 板块 09: 客户评价墙 */
    .testimonial-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }

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

    .stars-row {
      color: #F59E0B;
      font-size: 1rem;
      margin-bottom: 16px;
      letter-spacing: 2px;
    }

    .quote-content {
      font-size: 0.975rem;
      color: #334155;
      line-height: 1.75;
      margin-bottom: 24px;
    }

    .user-profile {
      display: flex;
      align-items: center;
      gap: 14px;
      padding-top: 16px;
      border-top: 1px solid var(--border-light);
    }

    .avatar-initial {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: #E2E8F0;
      color: var(--primary);
      font-weight: 700;
      font-size: 1.1rem;
      display: flex;
      align-items: center;
      justify-content: center;
    }

    .user-info .name {
      font-weight: 700;
      color: var(--primary);
      font-size: 0.95rem;
    }

    .user-info .role {
      font-size: 0.825rem;
      color: var(--text-muted);
    }

    /* 板块 10: 资讯与前沿动态 */
    .news-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 30px;
    }

    .news-card {
      background: #FFFFFF;
      border: 1px solid var(--border-light);
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
      transition: transform 0.25s ease;
      display: flex;
      flex-direction: column;
    }

    .news-card:hover {
      transform: translateY(-5px);
      box-shadow: var(--shadow-hover);
    }

    .news-thumb {
      height: 180px;
      overflow: hidden;
    }

    .news-thumb img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.3s ease;
    }

    .news-card:hover .news-thumb img {
      transform: scale(1.05);
    }

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

    .news-meta-row {
      display: flex;
      justify-content: space-between;
      align-items: center;
      margin-bottom: 12px;
      font-size: 0.8rem;
      color: var(--text-muted);
    }

    .news-category-badge {
      background: rgba(16, 185, 129, 0.1);
      color: var(--secondary);
      padding: 2px 8px;
      border-radius: 4px;
      font-weight: 600;
    }

    .news-body h3 {
      font-size: 1.15rem;
      margin-bottom: 12px;
      color: var(--primary);
      line-height: 1.45;
    }

    .news-body p {
      font-size: 0.9rem;
      color: var(--text-muted);
      line-height: 1.65;
      margin-bottom: 18px;
    }

    .news-link-btn {
      margin-top: auto;
      color: var(--primary);
      font-weight: 600;
      font-size: 0.9rem;
      display: inline-flex;
      align-items: center;
      gap: 4px;
    }

    .news-link-btn:hover {
      color: var(--secondary);
    }

    /* 板块 11: FAQ 手风琴 */
    .faq-container-narrow {
      max-width: 840px;
      margin: 0 auto;
    }

    .faq-accordion-group {
      display: flex;
      flex-direction: column;
      gap: 16px;
    }

    .faq-item {
      background: #FFFFFF;
      border: 1px solid var(--border-light);
      border-radius: var(--radius-md);
      overflow: hidden;
      transition: border-color 0.25s ease;
    }

    .faq-item[open] {
      border-color: var(--secondary);
      box-shadow: 0 4px 12px rgba(16, 185, 129, 0.08);
    }

    .faq-item summary {
      padding: 22px 24px;
      font-size: 1.1rem;
      font-weight: 600;
      color: var(--primary);
      cursor: pointer;
      list-style: none;
      display: flex;
      justify-content: space-between;
      align-items: center;
      user-select: none;
    }

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

    .faq-item summary::after {
      content: '+';
      font-size: 1.5rem;
      font-weight: 400;
      color: var(--secondary);
      transition: transform 0.25s ease;
      line-height: 1;
    }

    .faq-item[open] summary::after {
      content: '−';
      transform: rotate(180deg);
    }

    .faq-content-body {
      padding: 0 24px 22px;
      font-size: 0.975rem;
      color: #475569;
      line-height: 1.75;
      border-top: 1px solid #F1F5F9;
      margin-top: 4px;
      padding-top: 16px;
    }

    /* 板块 12: 底部接入转化区 */
    .cta-conversion-box {
      background: linear-gradient(135deg, #0F172A 0%, #1E293B 100%);
      border: 1px solid rgba(255, 255, 255, 0.12);
      border-radius: var(--radius-lg);
      padding: 64px 48px;
      color: #FFFFFF;
      box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.4);
      display: grid;
      grid-template-columns: 1.1fr 0.9fr;
      gap: 48px;
      align-items: center;
    }

    .cta-text-side h2 {
      font-size: 2.2rem;
      line-height: 1.3;
      margin-bottom: 18px;
      color: #FFFFFF;
    }

    .cta-text-side p {
      font-size: 1.05rem;
      color: #CBD5E1;
      line-height: 1.7;
      margin-bottom: 24px;
    }

    .cta-support-badges {
      display: flex;
      gap: 16px;
      flex-wrap: wrap;
    }

    .support-badge-pill {
      font-size: 0.85rem;
      background: rgba(255, 255, 255, 0.08);
      border: 1px solid rgba(255, 255, 255, 0.15);
      padding: 6px 14px;
      border-radius: 6px;
      color: #A7F3D0;
    }

    .cta-form-card {
      background: #FFFFFF;
      padding: 36px;
      border-radius: var(--radius-md);
      box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
      color: var(--primary);
    }

    .cta-form-card h4 {
      font-size: 1.25rem;
      margin-bottom: 6px;
      font-weight: 700;
    }

    .cta-form-card p {
      font-size: 0.875rem;
      color: var(--text-muted);
      margin-bottom: 20px;
    }

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

    .form-group-item label {
      display: block;
      font-size: 0.85rem;
      font-weight: 600;
      color: #334155;
      margin-bottom: 6px;
    }

    .form-group-item input,
    .form-group-item select {
      width: 100%;
      padding: 12px 14px;
      border: 1px solid var(--border-light);
      border-radius: var(--radius-sm);
      font-size: 0.95rem;
      color: var(--primary);
      background-color: #F8FAFC;
      transition: border-color 0.2s ease, box-shadow 0.2s ease;
    }

    .form-group-item input:focus,
    .form-group-item select:focus {
      outline: none;
      border-color: var(--secondary);
      box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.15);
    }

    .btn-submit-form {
      width: 100%;
      background: var(--secondary);
      color: #FFFFFF;
      border: none;
      padding: 14px;
      border-radius: var(--radius-sm);
      font-weight: 700;
      font-size: 1rem;
      cursor: pointer;
      transition: background-color 0.2s ease;
    }

    .btn-submit-form:hover {
      background-color: #059669;
    }

    /* 底部通用 Footer */
    .site-footer {
      background: #0B1329;
      color: #94A3B8;
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      padding: 72px 0 32px;
      font-size: 0.9rem;
    }

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

    .footer-col-brand .brand-logo {
      margin-bottom: 16px;
    }

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

    .footer-heading {
      font-size: 1rem;
      font-weight: 700;
      color: #FFFFFF;
      margin-bottom: 20px;
      text-transform: uppercase;
      letter-spacing: 0.04em;
    }

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

    .footer-nav-list a {
      color: #94A3B8;
    }

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

    .footer-contact-details li {
      margin-bottom: 12px;
      line-height: 1.5;
    }

    .footer-contact-details strong {
      color: #CBD5E1;
      display: inline-block;
      margin-right: 4px;
    }

    .footer-bottom-bar {
      border-top: 1px solid rgba(255, 255, 255, 0.06);
      padding-top: 28px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 16px;
      font-size: 0.85rem;
    }

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

    .footer-copyright a:hover {
      color: #CBD5E1;
    }

    /* 响应式断点控制 */
    @media (max-width: 1024px) {
      .hero-grid,
      .arch-intro-grid,
      .philosophy-grid,
      .stage-canvas,
      .cta-conversion-box {
        grid-template-columns: 1fr;
        gap: 40px;
      }

      .features-grid,
      .products-grid,
      .scenarios-grid,
      .testimonial-grid,
      .news-grid {
        grid-template-columns: repeat(2, 1fr);
      }

      .footer-main-grid {
        grid-template-columns: 1fr 1fr;
        gap: 36px;
      }

      .metric-strip-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 24px;
      }

      .metric-strip-col {
        border-right: none;
        border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        padding-bottom: 20px;
      }

      .hero-title {
        font-size: 2.3rem;
      }
    }

    @media (max-width: 768px) {
      .header-topbar {
        display: none;
      }

      .nav-menu {
        position: fixed;
        top: 65px;
        left: 0;
        width: 100%;
        background: #0F172A;
        flex-direction: column;
        align-items: flex-start;
        padding: 24px;
        gap: 18px;
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        display: none;
      }

      .nav-menu.show {
        display: flex;
      }

      .mobile-menu-toggle {
        display: block;
      }

      .header-navbar .btn-nav-cta {
        display: none;
      }

      .section-wrap {
        padding: 64px 0;
      }

      .hero-section {
        padding: 64px 0 100px;
      }

      .hero-title {
        font-size: 1.85rem;
      }

      .section-title {
        font-size: 1.65rem;
      }

      .features-grid,
      .products-grid,
      .scenarios-grid,
      .testimonial-grid,
      .news-grid {
        grid-template-columns: 1fr;
      }

      .metric-strip-grid {
        grid-template-columns: 1fr;
      }

      .footer-main-grid {
        grid-template-columns: 1fr;
      }

      .cta-conversion-box {
        padding: 36px 20px;
      }
    }