/* roulang page: index */
:root {
      --primary: #0F4C81;
      --primary-hover: #1E5BB0;
      --secondary: #1B2533;
      --accent: #00A3C4;
      --bg-light: #F8FAFC;
      --bg-white: #FFFFFF;
      --bg-dark: #0D1522;
      --text-main: #0F172A;
      --text-body: #334155;
      --text-muted: #64748B;
      --border-color: #E2E8F0;
      --border-focus: #0F4C81;
      --shadow-sm: 0 2px 4px rgba(15, 76, 129, 0.04);
      --shadow-md: 0 10px 25px -5px rgba(15, 76, 129, 0.06), 0 8px 10px -6px rgba(15, 76, 129, 0.04);
      --shadow-hover: 0 16px 32px -6px rgba(15, 76, 129, 0.12), 0 10px 14px -5px rgba(0, 163, 196, 0.08);
      --radius-sm: 6px;
      --radius-md: 10px;
      --radius-lg: 16px;
      --transition: all 0.3s ease;
    }

    * {
      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", "WenQuanYi Micro Hei", sans-serif;
      line-height: 1.65;
      color: var(--text-body);
      background-color: var(--bg-light);
      -webkit-font-smoothing: antialiased;
      overflow-x: hidden;
    }

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

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

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

    .container {
      width: 100%;
      max-width: 1280px;
      margin: 0 auto;
      padding: 0 24px;
    }

    /* 顶部双行导航 */
    .top-bar {
      background-color: var(--secondary);
      color: #94A3B8;
      font-size: 13px;
      border-bottom: 1px solid rgba(255,255,255,0.08);
      padding: 8px 0;
    }
    .top-bar-inner {
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    .top-bar-left {
      display: flex;
      align-items: center;
      gap: 20px;
    }
    .top-badge {
      background: rgba(0, 163, 196, 0.15);
      color: var(--accent);
      padding: 2px 8px;
      border-radius: 4px;
      font-size: 12px;
      font-weight: 500;
    }
    .main-header {
      background-color: var(--bg-white);
      border-bottom: 1px solid var(--border-color);
      position: sticky;
      top: 0;
      z-index: 1000;
      box-shadow: var(--shadow-sm);
    }
    .header-inner {
      display: flex;
      justify-content: space-between;
      align-items: center;
      height: 72px;
    }
    .logo-box {
      display: flex;
      align-items: center;
      gap: 10px;
      font-weight: 800;
      font-size: 22px;
      color: var(--primary);
      letter-spacing: -0.5px;
    }
    .logo-icon {
      width: 32px;
      height: 32px;
      background: linear-gradient(135deg, var(--primary), var(--accent));
      border-radius: var(--radius-sm);
      display: flex;
      align-items: center;
      justify-content: center;
      color: #fff;
      font-weight: bold;
      font-size: 18px;
    }
    .nav-menu {
      display: flex;
      align-items: center;
      gap: 28px;
      list-style: none;
    }
    .nav-link {
      font-size: 15px;
      font-weight: 500;
      color: var(--text-main);
      padding: 8px 0;
      position: relative;
    }
    .nav-link:hover, .nav-link.active {
      color: var(--primary);
    }
    .nav-link.active::after {
      content: '';
      position: absolute;
      bottom: -4px;
      left: 0;
      width: 100%;
      height: 2px;
      background-color: var(--primary);
      border-radius: 2px;
    }
    .header-cta-btn {
      background-color: var(--primary);
      color: #fff;
      padding: 10px 22px;
      border-radius: 4px;
      font-size: 14px;
      font-weight: 600;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      box-shadow: 0 4px 12px rgba(15, 76, 129, 0.2);
    }
    .header-cta-btn:hover {
      background-color: var(--primary-hover);
      transform: translateY(-1px);
    }

    /* 板块标准排版与通用组件 */
    section {
      padding: 96px 0;
      position: relative;
    }
    .section-title-wrap {
      text-align: center;
      max-width: 800px;
      margin: 0 auto 60px;
    }
    .section-tag {
      display: inline-block;
      color: var(--primary);
      background-color: rgba(15, 76, 129, 0.08);
      font-size: 13px;
      font-weight: 600;
      padding: 4px 12px;
      border-radius: 20px;
      margin-bottom: 12px;
      text-transform: uppercase;
      letter-spacing: 0.5px;
    }
    .section-title {
      font-size: 34px;
      font-weight: 700;
      color: var(--text-main);
      line-height: 1.3;
      margin-bottom: 16px;
    }
    .section-desc {
      font-size: 16px;
      color: var(--text-muted);
      line-height: 1.8;
    }

    .card {
      background: var(--bg-white);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      box-shadow: var(--shadow-md);
      transition: var(--transition);
      overflow: hidden;
    }
    .card:hover {
      transform: translateY(-3px);
      box-shadow: var(--shadow-hover);
      border-color: #CBD5E1;
    }

    /* 板块 1: Hero（线索获客提问式首屏） */
    .hero-section {
      background: linear-gradient(135deg, rgba(15, 76, 129, 0.03) 0%, rgba(0, 163, 196, 0.05) 100%), #FFFFFF;
      padding: 80px 0 100px;
      border-bottom: 1px solid var(--border-color);
    }
    .hero-grid {
      display: grid;
      grid-template-columns: 1.15fr 0.85fr;
      gap: 50px;
      align-items: center;
    }
    .hero-content h1 {
      font-size: 44px;
      line-height: 1.25;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 24px;
      letter-spacing: -0.5px;
    }
    .hero-question {
      font-size: 18px;
      color: var(--primary);
      font-weight: 700;
      margin-bottom: 16px;
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .hero-question::before {
      content: "";
      width: 4px;
      height: 18px;
      background: var(--accent);
      border-radius: 2px;
    }
    .hero-desc {
      font-size: 16px;
      color: var(--text-body);
      line-height: 1.85;
      margin-bottom: 32px;
    }
    .hero-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      margin-bottom: 32px;
    }
    .hero-tag-item {
      font-size: 13px;
      background: #F1F5F9;
      color: var(--text-muted);
      padding: 6px 14px;
      border-radius: 4px;
      border: 1px solid #E2E8F0;
    }
    .hero-form-card {
      background: #FFFFFF;
      border-radius: var(--radius-lg);
      padding: 36px 32px;
      border: 1px solid #CBD5E1;
      box-shadow: 0 20px 40px -10px rgba(15, 76, 129, 0.12);
      position: relative;
    }
    .hero-form-title {
      font-size: 20px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 8px;
    }
    .hero-form-subtitle {
      font-size: 13px;
      color: var(--text-muted);
      margin-bottom: 24px;
    }
    .form-group {
      margin-bottom: 16px;
    }
    .form-label {
      display: block;
      font-size: 13px;
      font-weight: 600;
      color: var(--text-main);
      margin-bottom: 6px;
    }
    .form-control {
      width: 100%;
      padding: 11px 14px;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      font-size: 14px;
      color: var(--text-main);
      background-color: #F8FAFC;
      transition: var(--transition);
    }
    .form-control:focus {
      outline: none;
      border-color: var(--primary);
      background-color: #FFF;
      box-shadow: 0 0 0 3px rgba(15, 76, 129, 0.1);
    }
    .btn-submit {
      width: 100%;
      background: linear-gradient(135deg, var(--primary) 0%, #155FA0 100%);
      color: #FFF;
      border: none;
      padding: 13px;
      border-radius: 4px;
      font-size: 15px;
      font-weight: 700;
      cursor: pointer;
      transition: var(--transition);
      box-shadow: 0 4px 14px rgba(15, 76, 129, 0.25);
    }
    .btn-submit:hover {
      transform: translateY(-2px);
      box-shadow: 0 8px 20px rgba(15, 76, 129, 0.35);
    }
    .form-privacy-note {
      font-size: 12px;
      color: var(--text-muted);
      text-align: center;
      margin-top: 14px;
    }

    /* 板块 2: 合集目录与产品工程架构 */
    .overview-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 50px;
      align-items: center;
    }
    .overview-img-wrap {
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: var(--shadow-md);
      border: 1px solid var(--border-color);
    }
    .spec-item {
      display: flex;
      gap: 16px;
      margin-bottom: 24px;
    }
    .spec-icon-box {
      flex-shrink: 0;
      width: 44px;
      height: 44px;
      background: rgba(15, 76, 129, 0.08);
      border-radius: 8px;
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--primary);
      font-weight: bold;
      font-size: 18px;
    }
    .spec-text h4 {
      font-size: 17px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 6px;
    }
    .spec-text p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 板块 3: 核心功能与技术竞争亮点 */
    .features-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 30px;
    }
    .feature-card {
      padding: 36px 28px;
    }
    .feature-icon-badge {
      width: 48px;
      height: 48px;
      background: linear-gradient(135deg, rgba(15, 76, 129, 0.1), rgba(0, 163, 196, 0.15));
      border-radius: 8px;
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 20px;
      font-weight: bold;
      margin-bottom: 20px;
    }
    .feature-card h3 {
      font-size: 18px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 12px;
    }
    .feature-card p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* 板块 4: 热门推荐与量产产品方案矩阵 */
    .products-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 30px;
    }
    .product-card {
      display: flex;
      flex-direction: column;
      height: 100%;
    }
    .product-img {
      height: 200px;
      object-fit: cover;
      width: 100%;
      border-bottom: 1px solid var(--border-color);
    }
    .product-body {
      padding: 28px;
      display: flex;
      flex-direction: column;
      flex-grow: 1;
    }
    .product-level {
      font-size: 12px;
      font-weight: 700;
      color: var(--accent);
      text-transform: uppercase;
      margin-bottom: 6px;
    }
    .product-body h3 {
      font-size: 20px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 16px;
    }
    .product-specs {
      list-style: none;
      margin-bottom: 24px;
      flex-grow: 1;
    }
    .product-specs li {
      font-size: 13px;
      color: var(--text-body);
      padding: 6px 0;
      border-bottom: 1px dashed #EDF2F7;
      display: flex;
      justify-content: space-between;
    }
    .product-specs li span:first-child {
      color: var(--text-muted);
    }
    .btn-outline {
      display: inline-block;
      text-align: center;
      padding: 10px 18px;
      border: 1px solid var(--primary);
      color: var(--primary);
      border-radius: 4px;
      font-size: 14px;
      font-weight: 600;
      transition: var(--transition);
    }
    .btn-outline:hover {
      background-color: var(--primary);
      color: #FFF;
    }

    /* 板块 5: 深色沉浸式设计与研发哲学 */
    .dark-section {
      background-color: var(--bg-dark);
      color: #FFF;
    }
    .dark-section .section-title {
      color: #FFF;
    }
    .dark-section .section-desc {
      color: #94A3B8;
    }
    .dark-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 60px;
      align-items: center;
    }
    .dark-text h2 {
      font-size: 32px;
      font-weight: 700;
      margin-bottom: 20px;
      line-height: 1.35;
    }
    .dark-text p {
      color: #94A3B8;
      font-size: 15px;
      line-height: 1.8;
      margin-bottom: 24px;
    }
    .dark-metrics-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 20px;
    }
    .dark-metric-card {
      background: rgba(255, 255, 255, 0.04);
      border: 1px solid rgba(255, 255, 255, 0.08);
      border-radius: var(--radius-md);
      padding: 24px;
    }
    .dark-metric-num {
      font-size: 34px;
      font-weight: 800;
      color: var(--accent);
      line-height: 1.1;
      margin-bottom: 8px;
      font-family: monospace;
    }
    .dark-metric-label {
      font-size: 14px;
      color: #CBD5E1;
      font-weight: 600;
      margin-bottom: 4px;
    }
    .dark-metric-desc {
      font-size: 12px;
      color: #64748B;
      line-height: 1.5;
    }

    /* 板块 6: 场景演示与典型出行生态 */
    .scenarios-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 30px;
    }
    .scenario-card {
      background: var(--bg-white);
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      overflow: hidden;
    }
    .scenario-body {
      padding: 24px;
    }
    .scenario-tag {
      font-size: 12px;
      color: var(--primary);
      font-weight: 600;
      margin-bottom: 8px;
      display: block;
    }
    .scenario-body h3 {
      font-size: 18px;
      color: var(--text-main);
      margin-bottom: 12px;
    }
    .scenario-body p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* 板块 7: 成功数据对比条 */
    .metrics-bar-section {
      background: #FFFFFF;
      padding: 56px 0;
      border-top: 1px solid var(--border-color);
      border-bottom: 1px solid var(--border-color);
    }
    .stat-row {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      text-align: center;
    }
    .stat-item {
      border-right: 1px solid var(--border-color);
      padding: 0 16px;
    }
    .stat-item:last-child {
      border-right: none;
    }
    .stat-number {
      font-size: 40px;
      font-weight: 800;
      color: var(--primary);
      line-height: 1.1;
      margin-bottom: 6px;
      font-family: monospace;
    }
    .stat-title {
      font-size: 15px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 4px;
    }
    .stat-subtitle {
      font-size: 12px;
      color: var(--text-muted);
    }

    /* 板块 8: 工业设计与软硬件能力矩阵 */
    .matrix-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
    }
    .matrix-card {
      background: var(--bg-white);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 28px 20px;
      text-align: center;
      transition: var(--transition);
    }
    .matrix-card:hover {
      border-color: var(--primary);
      box-shadow: var(--shadow-sm);
    }
    .matrix-badge {
      display: inline-block;
      width: 40px;
      height: 40px;
      line-height: 40px;
      border-radius: 50%;
      background: rgba(15, 76, 129, 0.08);
      color: var(--primary);
      font-weight: bold;
      margin-bottom: 16px;
    }
    .matrix-card h4 {
      font-size: 16px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 10px;
    }
    .matrix-card p {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 板块 9: 供应链与车规配套联盟 */
    .partners-section {
      background-color: #F8FAFC;
    }
    .partners-grid {
      display: grid;
      grid-template-columns: repeat(6, 1fr);
      gap: 20px;
    }
    .partner-item {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      height: 80px;
      display: flex;
      align-items: center;
      justify-content: center;
      padding: 12px;
      text-align: center;
      font-size: 14px;
      font-weight: 600;
      color: #64748B;
      transition: var(--transition);
    }
    .partner-item:hover {
      border-color: var(--primary);
      color: var(--primary);
      box-shadow: var(--shadow-sm);
    }

    /* 板块 10: 行业资讯与技术前瞻 */
    .news-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 30px;
    }
    .news-card {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
      display: flex;
      flex-direction: column;
    }
    .news-card-img {
      height: 190px;
      object-fit: cover;
      width: 100%;
    }
    .news-content {
      padding: 24px;
      display: flex;
      flex-direction: column;
      flex-grow: 1;
    }
    .news-date {
      font-size: 12px;
      color: var(--text-muted);
      margin-bottom: 8px;
    }
    .news-title {
      font-size: 17px;
      font-weight: 700;
      color: var(--text-main);
      line-height: 1.4;
      margin-bottom: 12px;
    }
    .news-summary {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 16px;
      flex-grow: 1;
    }
    .news-link {
      font-size: 13px;
      font-weight: 600;
      color: var(--primary);
      display: inline-flex;
      align-items: center;
      gap: 4px;
    }

    /* 板块 11: 收藏分享与专题架构索引 */
    .index-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 30px;
    }
    .index-box {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 28px;
    }
    .index-box h3 {
      font-size: 18px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 16px;
      padding-bottom: 10px;
      border-bottom: 1px solid var(--border-color);
    }
    .index-list {
      list-style: none;
    }
    .index-list li {
      padding: 8px 0;
      font-size: 14px;
      color: var(--text-body);
      display: flex;
      align-items: center;
      justify-content: space-between;
    }
    .index-list li a:hover {
      color: var(--primary);
    }
    .badge-gray {
      background: #F1F5F9;
      color: var(--text-muted);
      font-size: 11px;
      padding: 2px 6px;
      border-radius: 3px;
    }

    /* 板块 12: 用户口碑与工程交付实测评价 */
    .reviews-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 30px;
    }
    .review-card {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 30px;
      box-shadow: var(--shadow-sm);
    }
    .stars {
      color: #F59E0B;
      font-size: 14px;
      margin-bottom: 14px;
    }
    .review-quote {
      font-size: 14px;
      color: var(--text-body);
      line-height: 1.8;
      margin-bottom: 20px;
      font-style: normal;
    }
    .reviewer-meta {
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .reviewer-avatar {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: #E2E8F0;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: bold;
      color: var(--primary);
      font-size: 16px;
    }
    .reviewer-info h4 {
      font-size: 14px;
      font-weight: 700;
      color: var(--text-main);
    }
    .reviewer-info p {
      font-size: 12px;
      color: var(--text-muted);
    }

    /* 板块 13: 常见技术接入解答（手风琴） */
    .faq-wrapper {
      max-width: 860px;
      margin: 0 auto;
    }
    .faq-item {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      margin-bottom: 14px;
      overflow: hidden;
    }
    .faq-header {
      padding: 18px 24px;
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      background: #FFF;
      user-select: none;
      transition: var(--transition);
    }
    .faq-header:hover {
      background-color: #F8FAFC;
    }
    .faq-title {
      font-size: 16px;
      font-weight: 600;
      color: var(--text-main);
    }
    .faq-toggle-icon {
      font-size: 18px;
      color: var(--primary);
      transition: transform 0.3s ease;
    }
    .faq-item.active .faq-toggle-icon {
      transform: rotate(180deg);
    }
    .faq-body {
      padding: 0 24px 20px;
      display: none;
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.8;
      border-top: 1px solid transparent;
    }
    .faq-item.active .faq-body {
      display: block;
      border-top-color: #F1F5F9;
      padding-top: 16px;
    }

    /* 板块 14: 底部工程接入与行动收口 */
    .cta-box-section {
      background: linear-gradient(135deg, #EFF6FF 0%, #DBEAFE 100%);
      border-radius: var(--radius-lg);
      padding: 60px 48px;
      border: 1px solid #BFDBFE;
      margin-bottom: 80px;
    }
    .cta-box-grid {
      display: grid;
      grid-template-columns: 1.2fr 0.8fr;
      gap: 40px;
      align-items: center;
    }
    .cta-box-text h2 {
      font-size: 30px;
      font-weight: 800;
      color: var(--primary);
      margin-bottom: 14px;
    }
    .cta-box-text p {
      font-size: 15px;
      color: var(--text-body);
      line-height: 1.8;
      margin-bottom: 24px;
    }
    .cta-trust-items {
      display: flex;
      gap: 20px;
    }
    .cta-trust-item {
      font-size: 13px;
      color: var(--text-muted);
      display: flex;
      align-items: center;
      gap: 6px;
    }
    .cta-trust-item span {
      color: var(--accent);
      font-weight: bold;
    }
    .cta-form-container {
      background: #FFFFFF;
      padding: 28px;
      border-radius: var(--radius-md);
      box-shadow: var(--shadow-md);
      border: 1px solid #CBD5E1;
    }

    /* 页脚系统规范 */
    footer {
      background-color: var(--secondary);
      color: #94A3B8;
      padding: 80px 0 30px;
      border-top: 1px solid #334155;
      font-size: 14px;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
      gap: 50px;
      margin-bottom: 60px;
    }
    .footer-col h4 {
      color: #FFF;
      font-size: 16px;
      font-weight: 700;
      margin-bottom: 20px;
      letter-spacing: 0.5px;
    }
    .footer-about p {
      line-height: 1.8;
      margin-bottom: 20px;
      font-size: 13px;
    }
    .footer-links {
      list-style: none;
    }
    .footer-links li {
      margin-bottom: 10px;
    }
    .footer-links a:hover {
      color: #FFF;
      padding-left: 4px;
    }
    .footer-contact-list {
      list-style: none;
      line-height: 1.9;
      font-size: 13px;
    }
    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      padding-top: 30px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-size: 13px;
    }

    /* 移动端与自适应断点 */
    @media (max-width: 1024px) {
      .hero-grid, .overview-grid, .dark-grid, .cta-box-grid {
        grid-template-columns: 1fr;
      }
      .features-grid, .products-grid, .scenarios-grid, .news-grid, .index-grid, .reviews-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .matrix-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .partners-grid {
        grid-template-columns: repeat(3, 1fr);
      }
      .footer-grid {
        grid-template-columns: repeat(2, 1fr);
      }
    }

    @media (max-width: 768px) {
      section {
        padding: 56px 0;
      }
      .top-bar {
        display: none;
      }
      .nav-menu {
        display: none; /* 移动端精简处理 */
      }
      .hero-content h1 {
        font-size: 30px;
      }
      .section-title {
        font-size: 26px;
      }
      .features-grid, .products-grid, .scenarios-grid, .news-grid, .index-grid, .reviews-grid, .matrix-grid {
        grid-template-columns: 1fr;
      }
      .stat-row {
        grid-template-columns: repeat(2, 1fr);
        gap: 30px 10px;
      }
      .stat-item {
        border-right: none;
      }
      .partners-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .cta-box-section {
        padding: 36px 20px;
      }
      .footer-grid {
        grid-template-columns: 1fr;
        gap: 36px;
      }
      .footer-bottom {
        flex-direction: column;
        gap: 12px;
        text-align: center;
      }
    }