/* roulang page: index */
:root {
      --primary: #0B2530;
      --primary-dark: #06151C;
      --accent: #00E599;
      --accent-hover: #00c784;
      --pulse: #1E6BFF;
      --bg-light: #F7FAFC;
      --text-main: #1E293B;
      --text-muted: #64748B;
      --border-color: rgba(226, 232, 240, 0.9);
      --card-bg: #FFFFFF;
      --radius-sm: 8px;
      --radius-lg: 12px;
      --shadow-sm: 0 4px 20px -2px rgba(11, 37, 48, 0.05);
      --shadow-lg: 0 12px 32px -4px rgba(11, 37, 48, 0.12);
    }
    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }
    html {
      scroll-behavior: smooth;
      font-size: 16px;
    }
    body {
      font-family: system-ui, -apple-system, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      line-height: 1.75;
      color: var(--text-main);
      background-color: var(--bg-light);
      -webkit-font-smoothing: antialiased;
    }
    a {
      color: inherit;
      text-decoration: none;
      transition: all 0.2s ease;
    }
    img {
      max-width: 100%;
      height: auto;
      display: block;
    }
    button, input, select, textarea {
      font-family: inherit;
    }
    .container {
      width: 100%;
      max-width: 1240px;
      margin-left: auto;
      margin-right: auto;
      padding-left: 1.5rem;
      padding-right: 1.5rem;
    }
    /* 顶部顶层条 */
    .top-bar {
      background-color: var(--primary-dark);
      color: #94A3B8;
      font-size: 0.8125rem;
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
      padding: 0.5rem 0;
    }
    .top-bar-inner {
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 0.5rem;
    }
    .top-bar-badge {
      display: inline-flex;
      align-items: center;
      gap: 0.35rem;
      color: #E2E8F0;
    }
    .top-bar-badge::before {
      content: "";
      width: 6px;
      height: 6px;
      border-radius: 50%;
      background: var(--accent);
      display: inline-block;
    }
    /* 主导航 */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 100;
      background: rgba(255, 255, 255, 0.96);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border-color);
    }
    .header-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 72px;
    }
    .brand-logo {
      display: flex;
      align-items: center;
      gap: 0.75rem;
      font-size: 1.25rem;
      font-weight: 700;
      color: var(--primary);
    }
    .brand-icon {
      width: 38px;
      height: 38px;
      border-radius: var(--radius-sm);
      background: linear-gradient(135deg, var(--primary) 0%, #174557 100%);
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--accent);
      font-weight: 800;
      font-size: 1.1rem;
      border: 1px solid rgba(0, 229, 153, 0.3);
    }
    .nav-list {
      display: flex;
      list-style: none;
      align-items: center;
      gap: 2rem;
    }
    .nav-link {
      font-size: 0.9375rem;
      font-weight: 500;
      color: #334155;
      padding: 0.35rem 0;
      position: relative;
    }
    .nav-link:hover, .nav-link.active {
      color: var(--primary);
    }
    .nav-link::after {
      content: "";
      position: absolute;
      bottom: 0;
      left: 0;
      width: 0;
      height: 2px;
      background: var(--accent);
      transition: width 0.2s ease;
    }
    .nav-link:hover::after, .nav-link.active::after {
      width: 100%;
    }
    .header-action {
      display: flex;
      align-items: center;
      gap: 1rem;
    }
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      font-size: 0.9375rem;
      font-weight: 600;
      padding: 0.625rem 1.35rem;
      border-radius: var(--radius-sm);
      cursor: pointer;
      border: 1px solid transparent;
      transition: all 0.2s ease;
      min-height: 44px;
    }
    .btn-accent {
      background-color: var(--accent);
      color: var(--primary-dark);
      border-color: var(--accent);
    }
    .btn-accent:hover {
      background-color: var(--accent-hover);
      box-shadow: 0 4px 14px rgba(0, 229, 153, 0.35);
      transform: translateY(-1px);
    }
    .btn-outline {
      background: transparent;
      border-color: rgba(255, 255, 255, 0.3);
      color: #FFFFFF;
    }
    .btn-outline:hover {
      background: rgba(255, 255, 255, 0.1);
      border-color: #FFFFFF;
    }
    .btn-primary {
      background-color: var(--primary);
      color: #FFFFFF;
    }
    .btn-primary:hover {
      background-color: #123545;
      transform: translateY(-1px);
    }
    /* Section通用结构 */
    .section-wrap {
      padding: 5rem 0;
      position: relative;
    }
    .section-dark {
      background-color: var(--primary-dark);
      color: #F8FAFC;
    }
    .section-slate {
      background-color: #F1F5F9;
    }
    .section-header {
      margin-bottom: 3.25rem;
      text-align: center;
      max-width: 820px;
      margin-left: auto;
      margin-right: auto;
    }
    .section-tag {
      display: inline-block;
      font-size: 0.8125rem;
      font-weight: 700;
      letter-spacing: 0.05em;
      text-transform: uppercase;
      color: var(--pulse);
      background: rgba(30, 107, 255, 0.08);
      padding: 0.25rem 0.75rem;
      border-radius: 9999px;
      margin-bottom: 0.85rem;
    }
    .section-dark .section-tag {
      color: var(--accent);
      background: rgba(0, 229, 153, 0.12);
    }
    .section-title {
      font-size: clamp(1.75rem, 3.2vw, 2.35rem);
      font-weight: 800;
      line-height: 1.35;
      margin-bottom: 1.1rem;
      color: var(--primary);
    }
    .section-dark .section-title {
      color: #FFFFFF;
    }
    .section-desc {
      font-size: 1rem;
      color: var(--text-muted);
      line-height: 1.8;
    }
    .section-dark .section-desc {
      color: #94A3B8;
    }
    /* 1. Hero 板块 */
    .hero-section {
      position: relative;
      background-image: linear-gradient(170deg, rgba(6, 21, 28, 0.92) 0%, rgba(11, 37, 48, 0.95) 100%), url('/assets/images/48b94880c259bbc3.jpg');
      background-size: cover;
      background-position: center;
      color: #FFFFFF;
      padding: 6.5rem 0 6rem;
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    }
    .hero-content {
      max-width: 880px;
    }
    .hero-tag {
      display: inline-flex;
      align-items: center;
      gap: 0.5rem;
      padding: 0.35rem 0.85rem;
      border-radius: 9999px;
      background: rgba(0, 229, 153, 0.15);
      border: 1px solid rgba(0, 229, 153, 0.3);
      color: var(--accent);
      font-size: 0.875rem;
      font-weight: 600;
      margin-bottom: 1.5rem;
    }
    .hero-title {
      font-size: clamp(2.1rem, 4.5vw, 3.4rem);
      font-weight: 800;
      line-height: 1.25;
      margin-bottom: 1.5rem;
      letter-spacing: -0.02em;
    }
    .hero-lead {
      font-size: 1.125rem;
      color: #CBD5E1;
      line-height: 1.85;
      margin-bottom: 2.25rem;
      max-width: 820px;
    }
    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 1.25rem;
      align-items: center;
    }
    .hero-verify-panel {
      margin-top: 3.5rem;
      background: rgba(255, 255, 255, 0.05);
      border: 1px solid rgba(255, 255, 255, 0.12);
      backdrop-filter: blur(8px);
      padding: 1.5rem;
      border-radius: var(--radius-lg);
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
      gap: 1.25rem;
    }
    .verify-item {
      display: flex;
      flex-direction: column;
      gap: 0.35rem;
    }
    .verify-item span:first-child {
      font-size: 0.8125rem;
      color: #94A3B8;
    }
    .verify-item span:last-child {
      font-size: 1.05rem;
      font-weight: 700;
      color: #FFFFFF;
    }
    /* 2. 安全主张区 */
    .pillar-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
      gap: 2rem;
    }
    .pillar-card {
      background: var(--card-bg);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 2.25rem;
      box-shadow: var(--shadow-sm);
      transition: transform 0.2s ease, box-shadow 0.2s ease;
    }
    .pillar-card:hover {
      transform: translateY(-3px);
      box-shadow: var(--shadow-lg);
      border-color: rgba(0, 229, 153, 0.4);
    }
    .pillar-icon {
      width: 48px;
      height: 48px;
      border-radius: 10px;
      background: rgba(11, 37, 48, 0.05);
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 800;
      font-size: 1.25rem;
      margin-bottom: 1.25rem;
    }
    .pillar-title {
      font-size: 1.25rem;
      font-weight: 700;
      margin-bottom: 0.75rem;
      color: var(--primary);
    }
    .pillar-text {
      font-size: 0.9375rem;
      color: var(--text-muted);
      line-height: 1.7;
    }
    /* 3. 检查项清单 */
    .check-list-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 1.5rem;
    }
    .check-card {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 1.75rem;
      display: flex;
      gap: 1.25rem;
    }
    .check-num {
      font-size: 1.5rem;
      font-weight: 800;
      color: var(--pulse);
      line-height: 1;
    }
    .check-title {
      font-size: 1.05rem;
      font-weight: 700;
      color: var(--primary);
      margin-bottom: 0.5rem;
    }
    .check-detail {
      font-size: 0.875rem;
      color: var(--text-muted);
      line-height: 1.65;
    }
    /* 4. 合规徽章与标准体系 */
    .standards-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
      gap: 1.75rem;
    }
    .standard-badge-card {
      background: rgba(255, 255, 255, 0.03);
      border: 1px solid rgba(255, 255, 255, 0.1);
      border-radius: var(--radius-lg);
      padding: 2rem 1.5rem;
      text-align: center;
      transition: border-color 0.2s;
    }
    .standard-badge-card:hover {
      border-color: var(--accent);
    }
    .standard-code {
      display: inline-block;
      padding: 0.25rem 0.75rem;
      background: rgba(0, 229, 153, 0.1);
      color: var(--accent);
      border-radius: var(--radius-sm);
      font-size: 0.875rem;
      font-weight: 700;
      margin-bottom: 1rem;
    }
    .standard-name {
      font-size: 1.15rem;
      font-weight: 700;
      color: #FFFFFF;
      margin-bottom: 0.65rem;
    }
    .standard-desc {
      font-size: 0.875rem;
      color: #94A3B8;
      line-height: 1.6;
    }
    /* 5. 认证服务矩阵区 */
    .service-matrix {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(270px, 1fr));
      gap: 1.75rem;
    }
    .service-box {
      background: var(--card-bg);
      border-radius: var(--radius-lg);
      overflow: hidden;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
      transition: all 0.25s ease;
      display: flex;
      flex-direction: column;
    }
    .service-box:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-lg);
      border-color: var(--pulse);
    }
    .service-img-wrap {
      height: 180px;
      overflow: hidden;
      background: #CBD5E1;
    }
    .service-img-wrap img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.3s ease;
    }
    .service-box:hover .service-img-wrap img {
      transform: scale(1.05);
    }
    .service-body {
      padding: 1.5rem;
      flex-grow: 1;
      display: flex;
      flex-direction: column;
    }
    .service-title {
      font-size: 1.15rem;
      font-weight: 700;
      color: var(--primary);
      margin-bottom: 0.75rem;
    }
    .service-p {
      font-size: 0.875rem;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 1.25rem;
      flex-grow: 1;
    }
    .service-badge-row {
      display: flex;
      gap: 0.5rem;
      flex-wrap: wrap;
    }
    .service-sub-tag {
      font-size: 0.75rem;
      background: #F1F5F9;
      color: #475569;
      padding: 0.2rem 0.6rem;
      border-radius: 4px;
    }
    /* 6. 参数速览 */
    .specs-table-wrap {
      background: #FFFFFF;
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-color);
      overflow-x: auto;
      box-shadow: var(--shadow-sm);
    }
    .specs-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
      font-size: 0.9375rem;
    }
    .specs-table th {
      background: #F8FAFC;
      color: var(--primary);
      padding: 1.15rem 1.5rem;
      font-weight: 700;
      border-bottom: 1px solid var(--border-color);
    }
    .specs-table td {
      padding: 1.15rem 1.5rem;
      border-bottom: 1px solid var(--border-color);
      color: #475569;
    }
    .specs-table tr:last-child td {
      border-bottom: none;
    }
    .specs-table tr:hover td {
      background: #F8FAFC;
    }
    /* 7. 边界说明 */
    .boundary-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 2rem;
    }
    .boundary-box {
      border-radius: var(--radius-lg);
      padding: 2.25rem;
      background: #FFFFFF;
      border: 1px solid var(--border-color);
    }
    .boundary-box.allow {
      border-left: 4px solid var(--accent);
    }
    .boundary-box.deny {
      border-left: 4px solid #EF4444;
    }
    .boundary-head {
      display: flex;
      align-items: center;
      gap: 0.75rem;
      margin-bottom: 1.25rem;
    }
    .boundary-head h3 {
      font-size: 1.2rem;
      font-weight: 700;
      color: var(--primary);
    }
    .boundary-items {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 0.85rem;
    }
    .boundary-items li {
      font-size: 0.9375rem;
      color: #475569;
      position: relative;
      padding-left: 1.5rem;
      line-height: 1.6;
    }
    .boundary-items li::before {
      content: "•";
      position: absolute;
      left: 0.35rem;
      font-weight: 800;
      font-size: 1.2rem;
      line-height: 1;
    }
    .boundary-box.allow li::before {
      color: #059669;
    }
    .boundary-box.deny li::before {
      color: #DC2626;
    }
    /* 8. 解决方案与深色存证案例 */
    .case-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
      gap: 2rem;
    }
    .case-card {
      background: rgba(255, 255, 255, 0.04);
      border: 1px solid rgba(255, 255, 255, 0.12);
      border-radius: var(--radius-lg);
      padding: 2rem;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .case-meta {
      display: flex;
      justify-content: space-between;
      align-items: center;
      margin-bottom: 1.25rem;
      padding-bottom: 0.85rem;
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
      font-size: 0.8125rem;
      color: #94A3B8;
    }
    .case-hash {
      font-family: monospace;
      color: var(--accent);
      background: rgba(0, 229, 153, 0.1);
      padding: 0.2rem 0.5rem;
      border-radius: 4px;
    }
    .case-title {
      font-size: 1.25rem;
      font-weight: 700;
      color: #FFFFFF;
      margin-bottom: 0.85rem;
    }
    .case-desc {
      font-size: 0.9375rem;
      color: #CBD5E1;
      line-height: 1.7;
      margin-bottom: 1.5rem;
    }
    .case-stat {
      display: flex;
      gap: 1.5rem;
      background: rgba(0, 0, 0, 0.25);
      padding: 0.85rem 1.25rem;
      border-radius: var(--radius-sm);
    }
    .case-stat-num {
      font-weight: 700;
      color: #FFFFFF;
      font-size: 1.1rem;
    }
    .case-stat-label {
      font-size: 0.75rem;
      color: #94A3B8;
    }
    /* 9. 关键指标统计条 */
    .metrics-bar {
      background: linear-gradient(90deg, #071C25 0%, var(--primary) 100%);
      color: #FFFFFF;
      padding: 3.5rem 0;
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    }
    .metrics-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
      gap: 2rem;
      text-align: center;
    }
    .metric-num {
      font-size: clamp(2rem, 3.5vw, 2.75rem);
      font-weight: 800;
      color: var(--accent);
      line-height: 1.1;
      margin-bottom: 0.5rem;
    }
    .metric-label {
      font-size: 0.9375rem;
      color: #CBD5E1;
    }
    /* 10. 认证产品服务包（三列卡片） */
    .tier-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
      gap: 2rem;
      align-items: stretch;
    }
    .tier-card {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 2.5rem 2rem;
      display: flex;
      flex-direction: column;
      position: relative;
      transition: all 0.2s ease;
    }
    .tier-card.featured {
      border: 2px solid var(--pulse);
      box-shadow: 0 12px 30px rgba(30, 107, 255, 0.12);
      transform: translateY(-4px);
    }
    .tier-ribbon {
      position: absolute;
      top: -14px;
      right: 24px;
      background: var(--pulse);
      color: #FFFFFF;
      font-size: 0.75rem;
      font-weight: 700;
      padding: 0.3rem 0.85rem;
      border-radius: 9999px;
    }
    .tier-name {
      font-size: 1.35rem;
      font-weight: 800;
      color: var(--primary);
      margin-bottom: 0.5rem;
    }
    .tier-brief {
      font-size: 0.875rem;
      color: var(--text-muted);
      margin-bottom: 1.75rem;
      min-height: 48px;
    }
    .tier-features {
      list-style: none;
      margin-bottom: 2rem;
      flex-grow: 1;
    }
    .tier-features li {
      padding: 0.5rem 0;
      border-bottom: 1px dashed var(--border-color);
      font-size: 0.9375rem;
      color: #334155;
      display: flex;
      align-items: center;
      gap: 0.5rem;
    }
    .tier-features li::before {
      content: "✓";
      color: var(--pulse);
      font-weight: 800;
    }
    /* 11. 资讯动态区 */
    .news-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
      gap: 2rem;
    }
    .news-card {
      background: #FFFFFF;
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-color);
      overflow: hidden;
      display: flex;
      flex-direction: column;
    }
    .news-cover {
      height:175px;
      overflow: hidden;
      background: #E2E8F0;
    }
    .news-cover img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }
    .news-content {
      padding: 1.5rem;
      display: flex;
      flex-direction: column;
      flex-grow: 1;
    }
    .news-date {
      font-size: 0.8125rem;
      color: var(--text-muted);
      margin-bottom: 0.5rem;
    }
    .news-title {
      font-size: 1.125rem;
      font-weight: 700;
      color: var(--primary);
      margin-bottom: 0.75rem;
      line-height: 1.45;
    }
    .news-summary {
      font-size: 0.875rem;
      color: #64748B;
      line-height: 1.65;
      margin-bottom: 1.25rem;
      flex-grow: 1;
    }
    .news-link-btn {
      font-size: 0.875rem;
      font-weight: 600;
      color: var(--pulse);
      display: inline-flex;
      align-items: center;
      gap: 0.25rem;
    }
    .news-link-btn:hover {
      color: #124ec2;
    }
    /* 12. 合作伙伴与生态互认 */
    .partners-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
      gap: 1.25rem;
    }
    .partner-item {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      padding: 1.25rem 1rem;
      text-align: center;
      font-size: 0.9375rem;
      font-weight: 600;
      color: #475569;
      display: flex;
      align-items: center;
      justify-content: center;
      min-height: 72px;
      box-shadow: var(--shadow-sm);
    }
    /* 13. FAQ 手风琴 */
    .faq-list {
      max-width: 860px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 1rem;
    }
    .faq-item {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      overflow: hidden;
    }
    .faq-question {
      padding: 1.25rem 1.5rem;
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-weight: 700;
      color: var(--primary);
      user-select: none;
      font-size: 1.05rem;
    }
    .faq-toggle-icon {
      font-size: 1.25rem;
      color: var(--text-muted);
      transition: transform 0.25s ease;
      line-height: 1;
    }
    .faq-answer {
      display: none;
      padding: 0 1.5rem 1.35rem;
      color: #475569;
      font-size: 0.9375rem;
      line-height: 1.75;
      border-top: 1px solid #F1F5F9;
    }
    .faq-item.active .faq-answer {
      display: block;
    }
    .faq-item.active .faq-toggle-icon {
      transform: rotate(45deg);
      color: var(--pulse);
    }
    /* 14. 落地转化条 */
    .cta-banner {
      background: linear-gradient(135deg, var(--primary) 0%, #06151C 100%);
      color: #FFFFFF;
      border-radius: var(--radius-lg);
      padding: 3rem 2.5rem;
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 2.5rem;
      align-items: center;
      border: 1px solid rgba(0, 229, 153, 0.2);
    }
    .cta-form {
      display: flex;
      flex-direction: column;
      gap: 0.85rem;
      background: rgba(255, 255, 255, 0.04);
      padding: 1.75rem;
      border-radius: var(--radius-lg);
      border: 1px solid rgba(255, 255, 255, 0.1);
    }
    .cta-input {
      padding: 0.75rem 1rem;
      border-radius: var(--radius-sm);
      border: 1px solid rgba(255, 255, 255, 0.2);
      background: rgba(11, 37, 48, 0.6);
      color: #FFFFFF;
      font-size: 0.9375rem;
      outline: none;
    }
    .cta-input:focus {
      border-color: var(--accent);
    }
    /* 页脚 */
    .site-footer {
      background: var(--primary-dark);
      color: #94A3B8;
      padding-top: 4.5rem;
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      font-size: 0.9375rem;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1.5fr;
      gap: 3rem;
      margin-bottom: 3.5rem;
    }
    .footer-col-title {
      font-size: 1rem;
      font-weight: 700;
      color: #FFFFFF;
      margin-bottom: 1.25rem;
    }
    .footer-links {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 0.75rem;
    }
    .footer-links a:hover {
      color: var(--accent);
    }
    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      padding: 1.75rem 0;
      text-align: center;
      font-size: 0.8125rem;
      color: #64748B;
    }
    .footer-bottom-inner {
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 1rem;
    }
    /* 移动端汉堡菜单 */
    .mobile-menu-btn {
      display: none;
      background: none;
      border: none;
      font-size: 1.5rem;
      color: var(--primary);
      cursor: pointer;
    }
    /* 响应式断点 */
    @media (max-width: 1024px) {
      .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 2rem;
      }
      .boundary-grid {
        grid-template-columns: 1fr;
      }
      .cta-banner {
        grid-template-columns: 1fr;
      }
    }
    @media (max-width: 768px) {
      .top-bar-inner {
        justify-content: center;
        text-align: center;
      }
      .mobile-menu-btn {
        display: block;
      }
      .nav-list {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        width: 100%;
        background: #FFFFFF;
        flex-direction: column;
        padding: 1.5rem;
        border-bottom: 1px solid var(--border-color);
        box-shadow: var(--shadow-lg);
        gap: 1rem;
      }
      .nav-list.active {
        display: flex;
      }
      .header-action {
        display: none;
      }
      .section-wrap {
        padding: 3.5rem 0;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
      .footer-bottom-inner {
        flex-direction: column;
        text-align: center;
      }
    }