/* roulang page: index */
:root {
      --primary: #0A4DA2;
      --primary-hover: #083c7e;
      --accent-blue: #0086FF;
      --accent-cyan: #00B4D8;
      --bg-page: #F8FAFC;
      --bg-white: #FFFFFF;
      --bg-dark: #0F172A;
      --bg-dark-card: #1E293B;
      --text-main: #1E293B;
      --text-muted: #64748B;
      --text-light: #94A3B8;
      --border-color: #E2E8F0;
      --border-dark: #334155;
      --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.05), 0 1px 2px rgba(0, 0, 0, 0.02);
      --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.07), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
      --shadow-lg: 0 10px 25px -5px rgba(10, 77, 162, 0.08), 0 8px 10px -6px rgba(10, 77, 162, 0.04);
      --radius-sm: 6px;
      --radius-md: 10px;
      --radius-lg: 16px;
      --container-max: 1280px;
      --transition: all 0.25s ease-in-out;
    }

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

    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif;
      color: var(--text-main);
      background-color: var(--bg-page);
      line-height: 1.6;
      font-size: 16px;
      -webkit-font-smoothing: antialiased;
    }

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

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

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

    /* 顶部双行导航 */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.96);
      backdrop-filter: blur(10px);
      box-shadow: 0 1px 3px rgba(0,0,0,0.06);
    }

    .top-bar {
      background: #F1F5F9;
      border-bottom: 1px solid var(--border-color);
      font-size: 13px;
      color: var(--text-muted);
      padding: 6px 0;
    }

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

    .top-meta-list {
      display: flex;
      gap: 20px;
      list-style: none;
    }

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

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

    .brand-logo {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 20px;
      font-weight: 700;
      color: var(--primary);
      letter-spacing: -0.3px;
    }

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

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

    .nav-link {
      font-size: 15px;
      font-weight: 500;
      color: var(--text-main);
      position: relative;
      padding: 6px 0;
    }

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

    .nav-link.active::after {
      content: "";
      position: absolute;
      bottom: 0;
      left: 0;
      width: 100%;
      height: 2px;
      background: var(--accent-blue);
      border-radius: 2px;
    }

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

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 10px 22px;
      font-size: 15px;
      font-weight: 600;
      border-radius: var(--radius-sm);
      cursor: pointer;
      transition: var(--transition);
      border: 1px solid transparent;
      line-height: 1.4;
      text-align: center;
    }

    .btn-primary {
      background-color: var(--primary);
      color: #FFFFFF;
    }

    .btn-primary:hover {
      background-color: var(--primary-hover);
      box-shadow: 0 4px 12px rgba(10, 77, 162, 0.25);
    }

    .btn-accent {
      background-color: var(--accent-blue);
      color: #FFFFFF;
    }

    .btn-accent:hover {
      background-color: #0073dc;
      box-shadow: 0 4px 12px rgba(0, 134, 255, 0.3);
    }

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

    .btn-outline:hover {
      border-color: var(--primary);
      color: var(--primary);
      background-color: rgba(10, 77, 162, 0.03);
    }

    .btn-pill {
      border-radius: 9999px;
      padding: 8px 20px;
    }

    /* 移动端菜单切换 */
    .mobile-toggle {
      display: none;
      background: none;
      border: none;
      cursor: pointer;
      padding: 6px;
    }

    .mobile-toggle span {
      display: block;
      width: 24px;
      height: 2px;
      background: var(--text-main);
      margin: 5px 0;
      transition: var(--transition);
    }

    /* 板块通用 */
    section {
      padding: 90px 0;
      position: relative;
    }

    .section-white {
      background-color: var(--bg-white);
    }

    .section-slate {
      background-color: var(--bg-page);
    }

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

    .section-header {
      text-align: center;
      max-width: 860px;
      margin: 0 auto 56px;
    }

    .section-badge {
      display: inline-block;
      padding: 4px 14px;
      font-size: 13px;
      font-weight: 600;
      color: var(--accent-blue);
      background: rgba(0, 134, 255, 0.08);
      border-radius: 9999px;
      margin-bottom: 14px;
      letter-spacing: 0.5px;
    }

    .section-dark .section-badge {
      background: rgba(0, 180, 216, 0.15);
      color: var(--accent-cyan);
    }

    .section-title {
      font-size: 32px;
      font-weight: 700;
      color: var(--text-main);
      line-height: 1.35;
      margin-bottom: 16px;
    }

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

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

    .section-dark .section-desc {
      color: var(--text-light);
    }

    /* 板块 1: Hero (无大图，图标矩阵 + 状态条 + 短标题) */
    .hero-strip {
      padding: 70px 0 60px;
      background: linear-gradient(180deg, #FFFFFF 0%, #F1F5F9 100%);
      border-bottom: 1px solid var(--border-color);
    }

    .hero-content {
      max-width: 900px;
      margin: 0 auto;
      text-align: center;
    }

    .status-badge-strip {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      background: #FFFFFF;
      padding: 6px 16px;
      border-radius: 9999px;
      box-shadow: var(--shadow-sm);
      border: 1px solid var(--border-color);
      font-size: 13px;
      margin-bottom: 24px;
      color: var(--text-muted);
    }

    .status-pulse {
      width: 8px;
      height: 8px;
      background-color: #10B981;
      border-radius: 50%;
      box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.2);
    }

    .hero-h1 {
      font-size: 40px;
      font-weight: 800;
      color: var(--text-main);
      letter-spacing: -0.5px;
      line-height: 1.25;
      margin-bottom: 20px;
    }

    .hero-lead {
      font-size: 17px;
      color: var(--text-muted);
      line-height: 1.8;
      margin-bottom: 36px;
    }

    .hero-cta-group {
      display: flex;
      justify-content: center;
      gap: 16px;
      margin-bottom: 50px;
    }

    .icon-matrix {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 16px;
      text-align: left;
    }

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

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

    .matrix-icon {
      width: 40px;
      height: 40px;
      background: rgba(10, 77, 162, 0.08);
      color: var(--primary);
      border-radius: var(--radius-sm);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      margin-bottom: 12px;
      font-size: 16px;
    }

    .matrix-title {
      font-size: 16px;
      font-weight: 600;
      margin-bottom: 6px;
      color: var(--text-main);
    }

    .matrix-text {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.5;
    }

    /* 板块 2: 能力概览 (架构与参数规范) */
    .arch-grid {
      display: grid;
      grid-template-columns: 1.1fr 0.9fr;
      gap: 40px;
      align-items: center;
    }

    .arch-specs {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 16px;
      margin-top: 28px;
    }

    .spec-box {
      background: var(--bg-page);
      border: 1px solid var(--border-color);
      padding: 16px;
      border-radius: var(--radius-sm);
    }

    .spec-value {
      font-size: 22px;
      font-weight: 700;
      color: var(--primary);
      display: block;
      margin-bottom: 4px;
    }

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

    .arch-preview {
      background: var(--bg-dark);
      border-radius: var(--radius-lg);
      padding: 24px;
      box-shadow: var(--shadow-lg);
      color: #fff;
    }

    .topo-header {
      display: flex;
      align-items: center;
      justify-content: space-between;
      border-bottom: 1px solid var(--border-dark);
      padding-bottom: 14px;
      margin-bottom: 20px;
      font-size: 14px;
      color: var(--text-light);
    }

    .topo-flow {
      display: flex;
      flex-direction: column;
      gap: 14px;
    }

    .topo-node {
      background: var(--bg-dark-card);
      border: 1px solid var(--border-dark);
      border-radius: var(--radius-sm);
      padding: 14px 18px;
      display: flex;
      justify-content: space-between;
      align-items: center;
    }

    .node-title {
      font-weight: 600;
      font-size: 14px;
      color: #FFFFFF;
    }

    .node-tag {
      font-size: 12px;
      padding: 2px 8px;
      border-radius: 4px;
      background: rgba(0, 180, 216, 0.2);
      color: var(--accent-cyan);
    }

    /* 板块 3: 行业场景 */
    .scene-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .scene-card {
      background: var(--bg-white);
      border-radius: var(--radius-md);
      overflow: hidden;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
      display: flex;
      flex-direction: column;
    }

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

    .scene-img-wrap {
      height: 180px;
      overflow: hidden;
      background-color: #E2E8F0;
    }

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

    .scene-card:hover .scene-img-wrap img {
      transform: scale(1.04);
    }

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

    .scene-title {
      font-size: 18px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 10px;
    }

    .scene-desc {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 18px;
      flex-grow: 1;
    }

    .feature-points {
      list-style: none;
      margin-bottom: 20px;
    }

    .feature-points li {
      font-size: 13px;
      color: var(--text-main);
      display: flex;
      align-items: center;
      gap: 8px;
      margin-bottom: 8px;
    }

    .feature-points li::before {
      content: "✓";
      color: var(--accent-blue);
      font-weight: bold;
    }

    /* 板块 4: 核心优势矩阵 */
    .advantage-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .advantage-card {
      background: var(--bg-white);
      padding: 28px;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
    }

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

    .advantage-num {
      font-size: 14px;
      font-weight: 700;
      color: var(--accent-blue);
      letter-spacing: 1px;
      margin-bottom: 12px;
      display: inline-block;
    }

    .advantage-title {
      font-size: 18px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 10px;
    }

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

    /* 板块 5: 深色理念与数字化训练科研体系 */
    .method-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 48px;
      align-items: center;
    }

    .method-card-list {
      display: flex;
      flex-direction: column;
      gap: 20px;
    }

    .method-item {
      background: var(--bg-dark-card);
      border: 1px solid var(--border-dark);
      padding: 20px;
      border-radius: var(--radius-md);
    }

    .method-item-title {
      font-size: 17px;
      font-weight: 600;
      color: var(--accent-cyan);
      margin-bottom: 8px;
    }

    .method-item-desc {
      font-size: 14px;
      color: var(--text-light);
      line-height: 1.6;
    }

    .method-visual {
      background: var(--bg-dark-card);
      border: 1px solid var(--border-dark);
      border-radius: var(--radius-lg);
      padding: 30px;
      text-align: center;
    }

    .chart-mock {
      display: flex;
      align-items: flex-end;
      justify-content: space-between;
      height: 180px;
      padding-top: 20px;
      border-bottom: 1px solid var(--border-dark);
      margin-bottom: 16px;
    }

    .chart-bar-wrap {
      display: flex;
      flex-direction: column;
      align-items: center;
      gap: 8px;
      flex: 1;
    }

    .chart-bar {
      width: 24px;
      background: linear-gradient(180deg, var(--accent-cyan) 0%, var(--primary) 100%);
      border-radius: 4px 4px 0 0;
    }

    .chart-label {
      font-size: 12px;
      color: var(--text-light);
    }

    /* 板块 6: 资质墙与保障标准 */
    .trust-strip {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }

    .trust-card {
      background: var(--bg-white);
      border: 1px solid var(--border-color);
      padding: 24px;
      border-radius: var(--radius-md);
      text-align: center;
    }

    .trust-icon {
      font-size: 24px;
      margin-bottom: 12px;
      color: var(--primary);
    }

    .trust-title {
      font-size: 16px;
      font-weight: 700;
      margin-bottom: 6px;
      color: var(--text-main);
    }

    .trust-text {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.5;
    }

    /* 板块 7: 交付流程 */
    .flow-steps {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
      position: relative;
    }

    .step-item {
      background: var(--bg-white);
      border: 1px solid var(--border-color);
      padding: 24px;
      border-radius: var(--radius-md);
      position: relative;
    }

    .step-num {
      width: 32px;
      height: 32px;
      background: var(--primary);
      color: #fff;
      font-weight: 700;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      margin-bottom: 16px;
      font-size: 14px;
    }

    .step-title {
      font-size: 16px;
      font-weight: 700;
      margin-bottom: 8px;
    }

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

    /* 板块 8: 成功案例与用户故事 */
    .case-container {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 36px;
      align-items: center;
      background: var(--bg-white);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 36px;
      box-shadow: var(--shadow-sm);
    }

    .case-img-box {
      border-radius: var(--radius-md);
      overflow: hidden;
      height: 320px;
    }

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

    .case-detail h4 {
      font-size: 22px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 12px;
    }

    .case-detail p {
      font-size: 15px;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 20px;
    }

    .case-stats {
      display: flex;
      gap: 28px;
      border-top: 1px solid var(--border-color);
      padding-top: 18px;
    }

    .case-stat-num {
      font-size: 24px;
      font-weight: 700;
      color: var(--primary);
    }

    .case-stat-desc {
      font-size: 12px;
      color: var(--text-muted);
    }

    /* 板块 9: 平台指标统计条 */
    .metrics-bar {
      background: linear-gradient(90deg, #0A4DA2 0%, #0086FF 100%);
      color: #fff;
      padding: 48px 0;
    }

    .metrics-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      text-align: center;
    }

    .metric-value {
      font-size: 38px;
      font-weight: 800;
      letter-spacing: -1px;
      margin-bottom: 6px;
    }

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

    /* 板块 10: 资讯列表 */
    .news-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .news-card {
      background: var(--bg-white);
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
    }

    .news-img {
      height: 160px;
      overflow: hidden;
    }

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

    .news-info {
      padding: 20px;
      flex-grow: 1;
      display: flex;
      flex-direction: column;
    }

    .news-date {
      font-size: 12px;
      color: var(--text-light);
      margin-bottom: 8px;
    }

    .news-heading {
      font-size: 16px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 10px;
      line-height: 1.45;
    }

    .news-excerpt {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.6;
      flex-grow: 1;
      margin-bottom: 14px;
    }

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

    /* 板块 11: 常见答疑 FAQ    .faq-container {
      max-width: 860px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 14px;
    }

    .faq-item {
      background: var(--bg-white);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
      transition: var(--transition);
    }

    .faq-item[open] {
      box-shadow: var(--shadow-md);
      border-color: var(--accent-blue);
    }

    .faq-question {
      padding: 18px 24px;
      font-size: 16px;
      font-weight: 600;
      color: var(--text-main);
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      list-style: none;
      user-select: none;
    }

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

    .faq-icon {
      font-size: 18px;
      color: var(--accent-blue);
      transition: transform 0.25s ease;
    }

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

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

    /* 板块 12: 询盘表单与接入转化 */
    .cta-card {
      background: linear-gradient(135deg, #0A4DA2 0%, #0F172A 100%);
      border-radius: var(--radius-lg);
      padding: 56px 48px;
      color: #FFFFFF;
      display: grid;
      grid-template-columns: 1.1fr 0.9fr;
      gap: 48px;
      align-items: center;
      box-shadow: var(--shadow-lg);
    }

    .cta-title {
      font-size: 28px;
      font-weight: 700;
      margin-bottom: 16px;
      line-height: 1.35;
    }

    .cta-desc {
      font-size: 15px;
      color: var(--text-light);
      line-height: 1.7;
      margin-bottom: 24px;
    }

    .cta-features {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 10px;
      font-size: 13px;
      color: #CBD5E1;
    }

    .cta-features li::before {
      content: "●";
      color: var(--accent-cyan);
      margin-right: 8px;
    }

    .cta-form {
      background: rgba(255, 255, 255, 0.05);
      border: 1px solid rgba(255, 255, 255, 0.15);
      padding: 30px;
      border-radius: var(--radius-md);
      backdrop-filter: blur(10px);
    }

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

    .form-label {
      display: block;
      font-size: 13px;
      margin-bottom: 6px;
      color: #E2E8F0;
    }

    .form-control {
      width: 100%;
      padding: 11px 14px;
      border-radius: var(--radius-sm);
      border: 1px solid rgba(255, 255, 255, 0.2);
      background: rgba(255, 255, 255, 0.1);
      color: #FFFFFF;
      font-size: 14px;
      outline: none;
      transition: var(--transition);
    }

    .form-control:focus {
      border-color: var(--accent-cyan);
      background: rgba(255, 255, 255, 0.18);
    }

    .form-control::placeholder {
      color: #94A3B8;
    }

    .form-submit {
      width: 100%;
      padding: 13px;
      font-size: 15px;
      margin-top: 8px;
    }

    /* 页脚 */
    .site-footer {
      background-color: var(--bg-dark);
      color: var(--text-light);
      padding: 70px 0 30px;
      font-size: 14px;
      border-top: 1px solid var(--border-dark);
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
      gap: 40px;
      margin-bottom: 50px;
    }

    .footer-brand h3 {
      color: #FFFFFF;
      font-size: 18px;
      font-weight: 700;
      margin-bottom: 14px;
    }

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

    .footer-col h4 {
      color: #FFFFFF;
      font-size: 15px;
      font-weight: 600;
      margin-bottom: 18px;
      letter-spacing: 0.5px;
    }

    .footer-links {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 10px;
      font-size: 13px;
    }

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

    .footer-contact {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 12px;
      font-size: 13px;
    }

    .footer-bottom {
      border-top: 1px solid var(--border-dark);
      padding-top: 24px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-size: 12px;
      color: #64748B;
    }

    /* 移动端与响应式断点 */
    @media (max-width: 1024px) {
      .icon-matrix {
        grid-template-columns: repeat(2, 1fr);
      }
      .arch-grid, .cta-card, .case-container, .method-grid {
        grid-template-columns: 1fr;
      }
      .trust-strip, .flow-steps, .metrics-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .footer-grid {
        grid-template-columns: repeat(2, 1fr);
      }
    }

    @media (max-width: 768px) {
      .top-bar {
        display: none;
      }
      .mobile-toggle {
        display: block;
      }
      .nav-menu {
        position: fixed;
        top: 65px;
        left: 0;
        right: 0;
        background: #FFFFFF;
        flex-direction: column;
        align-items: flex-start;
        padding: 24px;
        box-shadow: 0 10px 20px rgba(0,0,0,0.1);
        display: none;
        gap: 16px;
      }
      .nav-menu.is-active {
        display: flex;
      }
      .header-actions .btn {
        display: none;
      }
      .hero-h1 {
        font-size: 28px;
      }
      .hero-cta-group {
        flex-direction: column;
      }
      .scene-grid, .advantage-grid, .news-grid {
        grid-template-columns: 1fr;
      }
      .arch-specs {
        grid-template-columns: 1fr;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
      .footer-bottom {
        flex-direction: column;
        gap: 10px;
        text-align: center;
      }
      .trust-strip, .flow-steps, .metrics-grid {
        grid-template-columns: 1fr;
      }
      .cta-card {
        padding: 32px 20px;
      }
    }