/* roulang page: index */
:root {
      --bg-main: #F8FAFC;
      --bg-alt: #F1F5F9;
      --bg-dark: #0B0F19;
      --text-main: #0F172A;
      --text-body: #334155;
      --text-muted: #64748B;
      --primary: #1E3A8A;
      --primary-hover: #1D4ED8;
      --accent-teal: #0D9488;
      --border-color: rgba(226, 232, 240, 0.9);
      --border-dark: rgba(255, 255, 255, 0.12);
      --radius-sm: 6px;
      --radius-md: 8px;
      --radius-lg: 12px;
      --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.05);
      --shadow-card: 0 10px 25px -5px rgba(15, 23, 42, 0.04), 0 8px 10px -6px rgba(15, 23, 42, 0.04);
      --shadow-hover: 0 20px 25px -5px rgba(15, 23, 42, 0.08), 0 8px 10px -6px rgba(15, 23, 42, 0.06);
      --font-stack: system-ui, -apple-system, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    }

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

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

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

    a {
      color: inherit;
      text-decoration: none;
      transition: all 0.25s 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-left: auto;
      margin-right: auto;
      padding-left: 24px;
      padding-right: 24px;
    }

    /* 双行导航 Header */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 999;
      background: rgba(255, 255, 255, 0.95);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border-color);
    }

    .header-topbar {
      background: var(--bg-dark);
      color: #94A3B8;
      font-size: 13px;
      padding: 6px 0;
    }

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

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

    .status-dot {
      width: 8px;
      height: 8px;
      background: #10B981;
      border-radius: 50%;
      box-shadow: 0 0 8px #10B981;
    }

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

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

    .brand-logo {
      display: flex;
      align-items: center;
      gap: 10px;
      font-weight: 700;
      font-size: 1.25rem;
      color: var(--text-main);
      letter-spacing: -0.5px;
    }

    .brand-mark {
      width: 32px;
      height: 32px;
      background: var(--primary);
      color: #fff;
      border-radius: var(--radius-sm);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 800;
      font-size: 16px;
    }

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

    .nav-links a {
      font-size: 0.95rem;
      color: var(--text-body);
      font-weight: 500;
    }

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

    .header-cta-btn {
      background: var(--primary);
      color: #FFFFFF;
      padding: 9px 20px;
      border-radius: var(--radius-sm);
      font-size: 0.9rem;
      font-weight: 600;
      border: 1px solid var(--primary);
      display: inline-flex;
      align-items: center;
      justify-content: center;
      cursor: pointer;
    }

    .header-cta-btn:hover {
      background: var(--primary-hover);
      border-color: var(--primary-hover);
      color: #FFF;
      box-shadow: 0 4px 12px rgba(30, 58, 138, 0.2);
    }

    /* 板块通用规范 */
    section {
      padding: 88px 0;
      position: relative;
    }

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

    .section-head.center {
      text-align: center;
      max-width: 840px;
      margin-left: auto;
      margin-right: auto;
      margin-bottom: 56px;
    }

    .badge-sub {
      display: inline-block;
      font-size: 0.8rem;
      font-weight: 700;
      letter-spacing: 1px;
      color: var(--accent-teal);
      text-transform: uppercase;
      margin-bottom: 12px;
      background: rgba(13, 148, 136, 0.08);
      padding: 4px 12px;
      border-radius: 100px;
      border: 1px solid rgba(13, 148, 136, 0.2);
    }

    .section-title {
      font-size: 2.25rem;
      font-weight: 700;
      color: var(--text-main);
      line-height: 1.3;
      margin-bottom: 16px;
      letter-spacing: -0.5px;
    }

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

    /* 板块一：Hero 首屏全宽沉浸 */
    .hero-section {
      position: relative;
      background-color: #070B14;
      color: #F8FAFC;
      padding: 100px 0 90px;
      overflow: hidden;
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    }

    .hero-bg-cover {
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      object-fit: cover;
      opacity: 0.28;
      filter: saturate(1.2) contrast(1.1);
    }

    .hero-overlay {
      position: absolute;
      inset: 0;
      background: radial-gradient(circle at 70% 30%, rgba(30, 58, 138, 0.4) 0%, rgba(7, 11, 20, 0.95) 75%);
    }

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

    .hero-text h1 {
      font-size: 3.25rem;
      line-height: 1.2;
      font-weight: 800;
      color: #FFFFFF;
      margin-bottom: 24px;
      letter-spacing: -1px;
    }

    .hero-summary {
      font-size: 1.125rem;
      line-height: 1.85;
      color: #CBD5E1;
      margin-bottom: 36px;
    }

    .hero-cta-group {
      display: flex;
      gap: 16px;
      align-items: center;
      flex-wrap: wrap;
    }

    .btn-hero-primary {
      background: #2563EB;
      color: #FFFFFF;
      padding: 14px 32px;
      border-radius: var(--radius-sm);
      font-weight: 600;
      font-size: 1rem;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      box-shadow: 0 10px 20px -3px rgba(37, 99, 235, 0.4);
    }

    .btn-hero-primary:hover {
      background: #1D4ED8;
      transform: translateY(-2px);
    }

    .btn-hero-secondary {
      background: rgba(255, 255, 255, 0.08);
      color: #F8FAFC;
      border: 1px solid rgba(255, 255, 255, 0.2);
      padding: 14px 28px;
      border-radius: var(--radius-sm);
      font-weight: 600;
      font-size: 1rem;
      backdrop-filter: blur(4px);
    }

    .btn-hero-secondary:hover {
      background: rgba(255, 255, 255, 0.16);
      border-color: rgba(255, 255, 255, 0.4);
    }

    .hero-metrics-pill {
      margin-top: 36px;
      display: flex;
      gap: 24px;
      padding-top: 24px;
      border-top: 1px solid rgba(255, 255, 255, 0.12);
    }

    .metric-pill-item {
      display: flex;
      flex-direction: column;
    }

    .metric-pill-item .val {
      font-size: 1.5rem;
      font-weight: 700;
      color: #38BDF8;
    }

    .metric-pill-item .lbl {
      font-size: 0.85rem;
      color: #94A3B8;
    }

    .hero-mockup-window {
      background: rgba(15, 23, 42, 0.85);
      border: 1px solid rgba(255, 255, 255, 0.15);
      border-radius: var(--radius-lg);
      overflow: hidden;
      box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.7);
    }

    .mockup-header {
      background: rgba(30, 41, 59, 0.7);
      padding: 12px 16px;
      display: flex;
      align-items: center;
      gap: 8px;
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    }

    .window-ctrl {
      width: 10px;
      height: 10px;
      border-radius: 50%;
      background: rgba(255, 255, 255, 0.2);
    }

    .window-title {
      font-size: 0.8rem;
      color: #94A3B8;
      margin-left: auto;
      font-family: monospace;
    }

    .mockup-body {
      padding: 8px;
    }

    .mockup-body img {
      border-radius: 6px;
      width: 100%;
      height: 340px;
      object-fit: cover;
    }

    /* 板块二：技术底座与中台架构 */
    .arch-section {
      background: #FFFFFF;
      border-bottom: 1px solid var(--border-color);
    }

    .arch-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 56px;
      align-items: center;
    }

    .arch-img-frame {
      position: relative;
      border-radius: var(--radius-lg);
      overflow: hidden;
      box-shadow: var(--shadow-card);
      border: 1px solid var(--border-color);
    }

    .arch-img-frame img {
      width: 100%;
      height: 400px;
      object-fit: cover;
    }

    .trust-specs-list {
      margin-top: 32px;
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 20px;
    }

    .spec-item {
      background: var(--bg-alt);
      padding: 18px 20px;
      border-radius: var(--radius-md);
      border-left: 3px solid var(--primary);
    }

    .spec-item h4 {
      font-size: 1.05rem;
      color: var(--text-main);
      margin-bottom: 6px;
    }

    .spec-item p {
      font-size: 0.875rem;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 板块三：六大支撑基座卡片 2x3 网格 */
    .grid-pillars {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }

    .pillar-card {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 32px 28px;
      position: relative;
      transition: all 0.3s ease;
      box-shadow: var(--shadow-sm);
    }

    .pillar-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-hover);
      border-color: rgba(30, 58, 138, 0.3);
    }

    .pillar-num {
      font-size: 1.1rem;
      font-weight: 800;
      color: var(--accent-teal);
      margin-bottom: 16px;
      font-family: monospace;
    }

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

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

    .card-meta-param {
      margin-top: 20px;
      padding-top: 16px;
      border-top: 1px dashed var(--border-color);
      font-size: 0.85rem;
      color: var(--text-muted);
      display: flex;
      justify-content: space-between;
    }

    /* 板块四：热门产品子系统矩阵 */
    .products-section {
      background: var(--bg-alt);
      border-bottom: 1px solid var(--border-color);
    }

    .product-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 32px;
    }

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

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

    .product-thumb {
      height: 200px;
      width: 100%;
      overflow: hidden;
      position: relative;
    }

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

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

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

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

    .product-card-body p {
      font-size: 0.95rem;
      color: var(--text-body);
      line-height: 1.7;
      margin-bottom: 20px;
      flex-grow: 1;
    }

    .product-specs-list {
      list-style: none;
      margin-bottom: 24px;
      border-top: 1px solid var(--border-color);
      padding-top: 16px;
    }

    .product-specs-list li {
      font-size: 0.88rem;
      color: var(--text-muted);
      margin-bottom: 8px;
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .product-specs-list li::before {
      content: "•";
      color: var(--primary);
      font-weight: bold;
    }

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

    /* 板块五：深色沉浸式转型标杆演示 */
    .showcase-dark-section {
      background: var(--bg-dark);
      color: #F8FAFC;
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
      position: relative;
    }

    .showcase-grid {
      display: grid;
      grid-template-columns: 0.9fr 1.1fr;
      gap: 48px;
      align-items: center;
    }

    .showcase-text .section-title {
      color: #FFFFFF;
    }

    .showcase-text .section-desc {
      color: #94A3B8;
      margin-bottom: 32px;
    }

    .ladder-metrics {
      display: flex;
      flex-direction: column;
      gap: 18px;
    }

    .ladder-step {
      background: rgba(255, 255, 255, 0.04);
      border: 1px solid rgba(255, 255, 255, 0.08);
      padding: 16px 20px;
      border-radius: var(--radius-md);
      display: flex;
      align-items: center;
      justify-content: space-between;
    }

    .ladder-step-name {
      font-size: 0.95rem;
      color: #E2E8F0;
      font-weight: 500;
    }

    .ladder-step-value {
      font-size: 1.15rem;
      font-weight: 700;
      color: #38BDF8;
    }

    .showcase-frame {
      border: 1px solid rgba(255, 255, 255, 0.15);
      border-radius: var(--radius-lg);
      overflow: hidden;
      box-shadow: 0 20px 40px rgba(0, 0, 0, 0.6);
    }

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

    /* 板块六：集团多业态场景矩阵 Tab */
    .scenarios-section {
      background: #FFFFFF;
      border-bottom: 1px solid var(--border-color);
    }

    .scenarios-tabs-nav {
      display: flex;
      justify-content: center;
      gap: 12px;
      margin-bottom: 40px;
      flex-wrap: wrap;
    }

    .scenario-tab-btn {
      background: var(--bg-alt);
      border: 1px solid var(--border-color);
      padding: 10px 24px;
      border-radius: 100px;
      font-size: 0.95rem;
      font-weight: 600;
      color: var(--text-body);
      cursor: pointer;
      transition: all 0.2s ease;
    }

    .scenario-tab-btn.active,
    .scenario-tab-btn:hover {
      background: var(--primary);
      border-color: var(--primary);
      color: #FFFFFF;
    }

    .scenario-tab-content {
      display: none;
      grid-template-columns: 1fr 1fr;
      gap: 48px;
      align-items: center;
      background: var(--bg-main);
      padding: 40px;
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-color);
    }

    .scenario-tab-content.active {
      display: grid;
    }

    .scenario-info h3 {
      font-size: 1.6rem;
      color: var(--text-main);
      margin-bottom: 16px;
    }

    .scenario-info p {
      font-size: 1rem;
      color: var(--text-body);
      line-height: 1.8;
      margin-bottom: 24px;
    }

    .scenario-pain-resolve {
      display: flex;
      flex-direction: column;
      gap: 14px;
    }

    .resolve-row {
      display: flex;
      align-items: flex-start;
      gap: 12px;
      font-size: 0.92rem;
    }

    .resolve-tag {
      background: rgba(30, 58, 138, 0.1);
      color: var(--primary);
      font-weight: 700;
      padding: 2px 8px;
      border-radius: 4px;
      font-size: 0.8rem;
      white-space: nowrap;
    }

    .scenario-visual img {
      border-radius: var(--radius-md);
      width: 100%;
      height: 320px;
      object-fit: cover;
      border: 1px solid var(--border-color);
    }

    /* 板块七：用户故事与数字化重构历程 */
    .journey-section {
      background: var(--bg-alt);
      border-bottom: 1px solid var(--border-color);
    }

    .journey-card {
      background: #FFFFFF;
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-color);
      padding: 48px;
      display: grid;
      grid-template-columns: 1.2fr 0.8fr;
      gap: 48px;
      box-shadow: var(--shadow-card);
    }

    .journey-story h3 {
      font-size: 1.7rem;
      color: var(--text-main);
      margin-bottom: 16px;
    }

    .journey-story p {
      font-size: 1rem;
      color: var(--text-body);
      line-height: 1.8;
      margin-bottom: 24px;
    }

    .journey-author {
      display: flex;
      align-items: center;
      gap: 16px;
      padding-top: 20px;
      border-top: 1px solid var(--border-color);
    }

    .author-avatar {
      width: 48px;
      height: 48px;
      background: var(--primary);
      border-radius: 50%;
      color: #fff;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
    }

    .author-meta h4 {
      font-size: 1rem;
      color: var(--text-main);
    }

    .author-meta span {
      font-size: 0.85rem;
      color: var(--text-muted);
    }

    .journey-metrics-block {
      background: var(--bg-main);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 32px;
      display: flex;
      flex-direction: column;
      justify-content: space-around;
      gap: 24px;
    }

    .compare-stat {
      border-bottom: 1px solid var(--border-color);
      padding-bottom: 16px;
    }

    .compare-stat:last-child {
      border-bottom: none;
      padding-bottom: 0;
    }

    .compare-stat .val-big {
      font-size: 2.2rem;
      font-weight: 800;
      color: var(--primary);
      line-height: 1.2;
    }

    .compare-stat .title-stat {
      font-size: 0.9rem;
      color: var(--text-muted);
      margin-top: 4px;
    }

    /* 板块八：硬核数据统计条 */
    .stat-banner-section {
      background: #0B0F19;
      color: #FFFFFF;
      padding: 64px 0;
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    }

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

    .stat-strip-item {
      padding: 0 16px;
      position: relative;
    }

    .stat-strip-item:not(:last-child)::after {
      content: "";
      position: absolute;
      right: 0;
      top: 20%;
      height: 60%;
      width: 1px;
      background: rgba(255, 255, 255, 0.15);
    }

    .stat-strip-val {
      font-size: 3rem;
      font-weight: 800;
      color: #38BDF8;
      letter-spacing: -1px;
      line-height: 1.1;
      margin-bottom: 8px;
    }

    .stat-strip-lbl {
      font-size: 0.95rem;
      color: #94A3B8;
      font-weight: 500;
    }

    /* 板块九：套餐价格与规格卡片 */
    .pricing-section {
      background: #FFFFFF;
      border-bottom: 1px solid var(--border-color);
    }

    .pricing-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 32px;
      align-items: stretch;
    }

    .pricing-card {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 40px 32px;
      display: flex;
      flex-direction: column;
      position: relative;
      transition: all 0.3s ease;
    }

    .pricing-card.featured {
      border-color: var(--primary);
      box-shadow: 0 20px 30px -10px rgba(30, 58, 138, 0.15);
      transform: scale(1.03);
      z-index: 2;
    }

    .featured-badge {
      position: absolute;
      top: -14px;
      left: 50%;
      transform: translateX(-50%);
      background: var(--primary);
      color: #FFFFFF;
      font-size: 0.75rem;
      font-weight: 700;
      padding: 4px 16px;
      border-radius: 100px;
      letter-spacing: 0.5px;
    }

    .price-plan-name {
      font-size: 1.35rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 8px;
    }

    .price-plan-desc {
      font-size: 0.9rem;
      color: var(--text-muted);
      margin-bottom: 24px;
      min-height: 48px;
    }

    .price-amount-box {
      margin-bottom: 28px;
      padding-bottom: 24px;
      border-bottom: 1px solid var(--border-color);
    }

    .price-val {
      font-size: 2.5rem;
      font-weight: 800;
      color: var(--text-main);
    }

    .price-unit {
      font-size: 0.9rem;
      color: var(--text-muted);
    }

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

    .price-features-list li {
      font-size: 0.9rem;
      color: var(--text-body);
      margin-bottom: 12px;
      display: flex;
      align-items: center;
      gap: 10px;
    }

    .price-features-list li::before {
      content: "✓";
      color: var(--accent-teal);
      font-weight: 800;
    }

    .btn-plan-action {
      display: block;
      text-align: center;
      padding: 12px 24px;
      border-radius: var(--radius-sm);
      font-weight: 600;
      font-size: 0.95rem;
      border: 1px solid var(--primary);
      background: transparent;
      color: var(--primary);
    }

    .btn-plan-action:hover,
    .pricing-card.featured .btn-plan-action {
      background: var(--primary);
      color: #FFFFFF;
    }

    .pricing-card.featured .btn-plan-action:hover {
      background: var(--primary-hover);
      border-color: var(--primary-hover);
    }

    /* 板块十：管理层评价墙 */
    .reviews-section {
      background: var(--bg-alt);
      border-bottom: 1px solid var(--border-color);
    }

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

    .review-card {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 32px 28px;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .review-quote {
      font-size: 0.95rem;
      color: var(--text-body);
      line-height: 1.75;
      margin-bottom: 24px;
      position: relative;
    }

    .review-person {
      display: flex;
      align-items: center;
      gap: 14px;
      border-top: 1px dashed var(--border-color);
      padding-top: 18px;
    }

    .review-avatar-text {
      width: 42px;
      height: 42px;
      background: #E2E8F0;
      color: var(--primary);
      border-radius: 50%;
      font-weight: 700;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 0.9rem;
    }

    .review-info-name {
      font-size: 0.95rem;
      font-weight: 700;
      color: var(--text-main);
    }

    .review-info-corp {
      font-size: 0.82rem;
      color: var(--text-muted);
    }

    /* 板块十一：资讯与白皮书 */
    .news-section {
      background: #FFFFFF;
      border-bottom: 1px solid var(--border-color);
    }

    .news-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 32px;
    }

    .news-card {
      background: var(--bg-main);
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-color);
      overflow: hidden;
      display: flex;
      flex-direction: column;
      transition: all 0.3s ease;
    }

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

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

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

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

    .news-date {
      font-size: 0.8rem;
      color: var(--accent-teal);
      font-weight: 600;
      margin-bottom: 8px;
    }

    .news-title {
      font-size: 1.15rem;
      color: var(--text-main);
      margin-bottom: 12px;
      line-height: 1.4;
      font-weight: 700;
    }

    .news-desc {
      font-size: 0.9rem;
      color: var(--text-muted);
      line-height: 1.65;
      margin-bottom: 20px;
      flex-grow: 1;
    }

    .news-link {
      font-size: 0.88rem;
      font-weight: 600;
      color: var(--primary);
    }

    /* 板块十二：FAQ 手风琴 */
    .faq-section {
      background: var(--bg-alt);
      border-bottom: 1px solid var(--border-color);
    }

    .faq-accordion-wrap {
      max-width: 860px;
      margin: 0 auto;
    }

    .faq-item {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      margin-bottom: 16px;
      overflow: hidden;
    }

    .faq-question {
      padding: 20px 24px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      cursor: pointer;
      font-size: 1.05rem;
      font-weight: 600;
      color: var(--text-main);
      user-select: none;
    }

    .faq-toggle-icon {
      font-size: 1.4rem;
      line-height: 1;
      color: var(--text-muted);
      transition: transform 0.25s ease;
    }

    .faq-item.active .faq-toggle-icon {
      transform: rotate(45deg);
      color: var(--primary);
    }

    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease-out;
      background: #FAFAFA;
      border-top: 0 solid var(--border-color);
    }

    .faq-item.active .faq-answer {
      border-top-width: 1px;
    }

    .faq-answer-inner {
      padding: 20px 24px;
      font-size: 0.95rem;
      color: var(--text-body);
      line-height: 1.8;
    }

    /* 板块十三：收尾转化 CTA 容器 */
    .cta-final-section {
      background: #0B0F19;
      color: #FFFFFF;
      padding: 90px 0;
      position: relative;
      overflow: hidden;
    }

    .cta-card-box {
      background: linear-gradient(135deg, rgba(30, 58, 138, 0.4) 0%, rgba(15, 23, 42, 0.8) 100%);
      border: 1px solid rgba(255, 255, 255, 0.15);
      border-radius: var(--radius-lg);
      padding: 60px;
      display: grid;
      grid-template-columns: 1.1fr 0.9fr;
      gap: 56px;
      align-items: center;
    }

    .cta-info h2 {
      font-size: 2.4rem;
      font-weight: 800;
      line-height: 1.3;
      margin-bottom: 20px;
      letter-spacing: -0.5px;
    }

    .cta-info p {
      font-size: 1.05rem;
      color: #CBD5E1;
      line-height: 1.8;
      margin-bottom: 28px;
    }

    .cta-promises {
      display: flex;
      gap: 24px;
      flex-wrap: wrap;
    }

    .promise-tag {
      font-size: 0.85rem;
      color: #94A3B8;
      display: flex;
      align-items: center;
      gap: 6px;
    }

    .promise-tag::before {
      content: "✔";
      color: #38BDF8;
    }

    .cta-form-wrapper {
      background: #FFFFFF;
      padding: 36px;
      border-radius: var(--radius-md);
      color: var(--text-main);
      box-shadow: 0 20px 30px rgba(0, 0, 0, 0.3);
    }

    .cta-form-title {
      font-size: 1.25rem;
      font-weight: 700;
      margin-bottom: 20px;
      text-align: center;
    }

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

    .form-group label {
      display: block;
      font-size: 0.85rem;
      font-weight: 600;
      color: var(--text-body);
      margin-bottom: 6px;
    }

    .form-group input,
    .form-group select {
      width: 100%;
      padding: 10px 14px;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      outline: none;
      transition: border-color 0.2s;
    }

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

    .btn-submit-cta {
      width: 100%;
      background: var(--primary);
      color: #FFFFFF;
      padding: 12px;
      border-radius: var(--radius-sm);
      border: none;
      font-weight: 700;
      font-size: 1rem;
      cursor: pointer;
      margin-top: 8px;
      transition: background 0.2s ease;
    }

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

    /* 页脚 Footer */
    .site-footer {
      background: #06090F;
      color: #94A3B8;
      padding: 80px 0 32px;
      font-size: 0.9rem;
      border-top: 1px solid rgba(255, 255, 255, 0.08);
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
      gap: 48px;
      margin-bottom: 64px;
    }

    .footer-brand-title {
      font-size: 1.2rem;
      font-weight: 700;
      color: #F8FAFC;
      margin-bottom: 16px;
    }

    .footer-desc {
      line-height: 1.7;
      margin-bottom: 20px;
      color: #64748B;
    }

    .footer-col h4 {
      font-size: 1rem;
      color: #F8FAFC;
      margin-bottom: 20px;
      font-weight: 600;
    }

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

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

    .footer-links-list a:hover {
      color: #FFFFFF;
    }

    .footer-bottom-bar {
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      padding-top: 32px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 16px;
      font-size: 0.85rem;
      color: #64748B;
    }

    .footer-bottom-bar a {
      color: #94A3B8;
    }

    /* 移动端汉堡与自适应 */
    .mobile-menu-btn {
      display: none;
      background: transparent;
      border: none;
      cursor: pointer;
      padding: 6px;
    }

    .mobile-menu-icon {
      width: 24px;
      height: 2px;
      background: var(--text-main);
      position: relative;
      display: block;
    }

    .mobile-menu-icon::before,
    .mobile-menu-icon::after {
      content: "";
      position: absolute;
      width: 24px;
      height: 2px;
      background: var(--text-main);
      left: 0;
      transition: all 0.25s ease;
    }

    .mobile-menu-icon::before { top: -7px; }
    .mobile-menu-icon::after { bottom: -7px; }

    @media (max-width: 1024px) {
      .grid-pillars,
      .product-grid,
      .pricing-grid,
      .reviews-grid,
      .news-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .arch-grid,
      .showcase-grid,
      .journey-card,
      .cta-card-box {
        grid-template-columns: 1fr;
      }
      .footer-grid {
        grid-template-columns: repeat(2, 1fr);
      }
    }

    @media (max-width: 768px) {
      .header-topbar {
        display: none;
      }
      .mobile-menu-btn {
        display: block;
      }
      .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background: #FFFFFF;
        flex-direction: column;
        padding: 24px;
        gap: 16px;
        border-bottom: 1px solid var(--border-color);
        box-shadow: 0 10px 15px rgba(0,0,0,0.05);
      }
      .nav-links.open {
        display: flex;
      }
      .header-actions {
        display: none;
      }
      .hero-content-wrap {
        grid-template-columns: 1fr;
      }
      .hero-text h1 {
        font-size: 2.25rem;
      }
      .section-title {
        font-size: 1.85rem;
      }
      .grid-pillars,
      .product-grid,
      .pricing-grid,
      .reviews-grid,
      .news-grid,
      .stat-strip-grid {
        grid-template-columns: 1fr;
      }
      .scenario-tab-content {
        grid-template-columns: 1fr;
        padding: 24px;
      }
      .stat-strip-item:not(:last-child)::after {
        display: none;
      }
      .stat-strip-item {
        margin-bottom: 24px;
      }
      .cta-card-box {
        padding: 32px 20px;
      }
      .footer-grid {
        grid-template-columns: 1fr;
        gap: 32px;
      }
      .footer-bottom-bar {
        flex-direction: column;
        text-align: center;
      }
    }