/* roulang page: index */
:root {
      --primary: #00DC82;
      --primary-hover: #05F19C;
      --primary-glow: rgba(0, 220, 130, 0.25);
      --accent: #7C3AED;
      --accent-light: #9061F9;
      --bg-light: #F8FAFC;
      --bg-card: #FFFFFF;
      --bg-dark: #0B0F19;
      --bg-dark-card: #111827;
      --text-main: #0F172A;
      --text-muted: #475569;
      --text-light: #F1F5F9;
      --text-light-muted: #94A3B8;
      --border-color: #E2E8F0;
      --border-dark: rgba(255, 255, 255, 0.1);
      --radius-sm: 8px;
      --radius-md: 14px;
      --radius-lg: 20px;
      --shadow-sm: 0 4px 6px -1px rgba(0, 0, 0, 0.05);
      --shadow-md: 0 10px 25px -5px rgba(0, 0, 0, 0.08), 0 8px 10px -6px rgba(0, 0, 0, 0.03);
      --shadow-glow: 0 0 25px rgba(0, 220, 130, 0.35);
      --transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    }

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

    html {
      scroll-behavior: smooth;
    }

    body {
      font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      background-color: var(--bg-light);
      color: var(--text-main);
      line-height: 1.65;
      font-size: 16px;
      overflow-x: hidden;
    }

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

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

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

    /* 顶部双行导航 */
    .top-bar {
      background-color: #060911;
      color: var(--text-light-muted);
      font-size: 13px;
      padding: 8px 0;
      border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    }
    .top-bar-inner {
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    .top-badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }
    .status-dot {
      width: 8px;
      height: 8px;
      background: var(--primary);
      border-radius: 50%;
      box-shadow: 0 0 8px var(--primary);
    }

    header.site-header {
      background: rgba(11, 15, 25, 0.95);
      backdrop-filter: blur(12px);
      position: sticky;
      top: 0;
      z-index: 999;
      border-bottom: 1px solid var(--border-dark);
    }
    .header-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 72px;
    }
    .brand-logo {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 19px;
      font-weight: 800;
      color: #FFFFFF;
      letter-spacing: -0.5px;
    }
    .brand-logo .logo-icon {
      width: 34px;
      height: 34px;
      background: linear-gradient(135deg, var(--primary), var(--accent));
      border-radius: var(--radius-sm);
      display: flex;
      align-items: center;
      justify-content: center;
      color: #0B0F19;
      font-weight: 900;
      font-size: 18px;
    }
    .nav-links {
      display: flex;
      list-style: none;
      gap: 28px;
      align-items: center;
    }
    .nav-links a {
      color: var(--text-light);
      font-size: 15px;
      font-weight: 500;
      padding: 6px 0;
      position: relative;
    }
    .nav-links a:hover, .nav-links a.active {
      color: var(--primary);
    }
    .nav-links a.active::after {
      content: "";
      position: absolute;
      bottom: -4px;
      left: 0;
      width: 100%;
      height: 2px;
      background: var(--primary);
      border-radius: 2px;
    }
    .header-cta-btn {
      background: var(--primary);
      color: #0B0F19;
      font-weight: 700;
      padding: 10px 22px;
      border-radius: var(--radius-sm);
      font-size: 14px;
      box-shadow: 0 2px 10px var(--primary-glow);
    }
    .header-cta-btn:hover {
      background: var(--primary-hover);
      box-shadow: var(--shadow-glow);
    }

    /* 移动端菜单开关 */
    .mobile-menu-toggle {
      display: none;
      flex-direction: column;
      gap: 5px;
      background: transparent;
      border: none;
      cursor: pointer;
      padding: 8px;
    }
    .mobile-menu-toggle span {
      display: block;
      width: 24px;
      height: 2px;
      background: #FFFFFF;
      transition: var(--transition);
    }

    /* 通用板块与排版 */
    section {
      padding: 84px 0;
      position: relative;
    }
    .section-header {
      text-align: center;
      max-width: 820px;
      margin: 0 auto 52px auto;
    }
    .section-tag {
      display: inline-block;
      font-size: 13px;
      font-weight: 700;
      color: var(--accent);
      background: rgba(124, 58, 237, 0.1);
      padding: 5px 14px;
      border-radius: 30px;
      margin-bottom: 14px;
      text-transform: uppercase;
      letter-spacing: 0.5px;
    }
    .section-tag.green {
      color: var(--primary);
      background: rgba(0, 220, 130, 0.12);
    }
    .section-title {
      font-size: 34px;
      font-weight: 800;
      color: var(--text-main);
      line-height: 1.3;
      margin-bottom: 16px;
    }
    .section-desc {
      font-size: 16px;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* 按钮规范 */
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      padding: 14px 28px;
      border-radius: var(--radius-sm);
      font-size: 15px;
      font-weight: 700;
      cursor: pointer;
      border: 1px solid transparent;
      transition: var(--transition);
    }
    .btn-primary {
      background: var(--primary);
      color: #0B0F19;
      box-shadow: 0 4px 15px var(--primary-glow);
    }
    .btn-primary:hover {
      background: var(--primary-hover);
      box-shadow: 0 6px 20px rgba(0, 220, 130, 0.45);
      transform: translateY(-2px);
    }
    .btn-outline-white {
      background: rgba(255, 255, 255, 0.08);
      border-color: rgba(255, 255, 255, 0.2);
      color: #FFFFFF;
    }
    .btn-outline-white:hover {
      background: rgba(255, 255, 255, 0.15);
      border-color: #FFFFFF;
      transform: translateY(-2px);
    }

    /* 1. Hero Banner 促销主视觉 + 爆炸贴角标 */
    .hero-section {
      background: linear-gradient(180deg, #0B0F19 0%, #111827 100%), url('/assets/images/037658822ed93b76.webp') center/cover no-repeat;
      background-blend-mode: overlay;
      color: #FFFFFF;
      padding: 100px 0 110px 0;
      position: relative;
      overflow: hidden;
    }
    .hero-grid {
      display: grid;
      grid-template-columns: 1.15fr 0.85fr;
      gap: 40px;
      align-items: center;
    }
    .hero-badge-wrap {
      display: flex;
      align-items: center;
      gap: 12px;
      margin-bottom: 20px;
      flex-wrap: wrap;
    }
    .explosion-badge {
      background: linear-gradient(135deg, #FF453A, #FF9F0A);
      color: #FFFFFF;
      font-size: 12px;
      font-weight: 900;
      padding: 4px 12px;
      border-radius: 4px;
      transform: rotate(-2deg);
      box-shadow: 0 4px 12px rgba(255, 69, 58, 0.4);
      display: inline-block;
    }
    .hero-h1 {
      font-size: 46px;
      font-weight: 900;
      line-height: 1.25;
      margin-bottom: 22px;
      letter-spacing: -0.5px;
    }
    .hero-h1 span.highlight {
      background: linear-gradient(90deg, var(--primary) 0%, #38BDF8 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    .hero-lead {
      font-size: 17px;
      color: var(--text-light-muted);
      line-height: 1.8;
      margin-bottom: 34px;
      max-width: 640px;
    }
    .hero-btn-group {
      display: flex;
      gap: 16px;
      margin-bottom: 40px;
      flex-wrap: wrap;
    }
    .hero-side-card {
      background: rgba(17, 24, 39, 0.85);
      border: 1px solid var(--border-dark);
      border-radius: var(--radius-lg);
      padding: 28px;
      backdrop-filter: blur(16px);
      box-shadow: 0 20px 40px rgba(0, 0, 0, 0.5);
      position: relative;
    }
    .hero-side-card .corner-tag {
      position: absolute;
      top: 16px;
      right: 16px;
      background: var(--accent);
      color: #FFFFFF;
      font-size: 11px;
      padding: 3px 10px;
      border-radius: 20px;
      font-weight: 700;
    }
    .card-metric-title {
      font-size: 14px;
      color: var(--text-light-muted);
      margin-bottom: 6px;
    }
    .card-metric-num {
      font-size: 32px;
      font-weight: 900;
      color: var(--primary);
      margin-bottom: 20px;
      display: flex;
      align-items: baseline;
      gap: 6px;
    }
    .card-metric-num span {
      font-size: 14px;
      color: var(--text-light-muted);
      font-weight: 400;
    }
    .engine-feature-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 12px;
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      padding-top: 16px;
    }
    .engine-feature-list li {
      font-size: 14px;
      color: var(--text-light);
      display: flex;
      align-items: center;
      gap: 10px;
    }
    .engine-feature-list li::before {
      content: "✔";
      color: var(--primary);
      font-weight: bold;
    }

    /* 2. KPI看板（指标看板） */
    .kpi-section {
      background: #0D1322;
      padding: 50px 0;
      border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    }
    .kpi-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
    }
    .kpi-item {
      background: rgba(255, 255, 255, 0.03);
      border: 1px solid rgba(255, 255, 255, 0.06);
      border-radius: var(--radius-md);
      padding: 24px;
      transition: var(--transition);
    }
    .kpi-item:hover {
      border-color: var(--primary);
      transform: translateY(-4px);
      background: rgba(255, 255, 255, 0.05);
    }
    .kpi-val {
      font-size: 38px;
      font-weight: 900;
      color: #FFFFFF;
      line-height: 1;
      margin-bottom: 10px;
    }
    .kpi-val em {
      font-style: normal;
      color: var(--primary);
      font-size: 22px;
      margin-left: 4px;
    }
    .kpi-label {
      font-size: 15px;
      font-weight: 700;
      color: #E2E8F0;
      margin-bottom: 6px;
    }
    .kpi-sub {
      font-size: 13px;
      color: var(--text-light-muted);
      line-height: 1.5;
    }

    /* 3. 服务矩阵（架构能力） */
    .matrix-section {
      background: #FFFFFF;
    }
    .matrix-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 30px;
    }
    .matrix-card {
      background: var(--bg-light);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 32px 28px;
      transition: var(--transition);
      position: relative;
    }
    .matrix-card:hover {
      box-shadow: var(--shadow-md);
      border-color: var(--accent);
      transform: translateY(-5px);
    }
    .matrix-icon-box {
      width: 52px;
      height: 52px;
      background: rgba(124, 58, 237, 0.08);
      border-radius: 12px;
      display: flex;
      align-items: center;
      justify-content: center;
      margin-bottom: 20px;
      color: var(--accent);
      font-size: 24px;
      font-weight: 900;
    }
    .matrix-title {
      font-size: 20px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 12px;
    }
    .matrix-desc {
      font-size: 15px;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 18px;
    }
    .matrix-pill-group {
      display: flex;
      gap: 8px;
      flex-wrap: wrap;
    }
    .matrix-pill {
      font-size: 12px;
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      padding: 3px 10px;
      border-radius: 12px;
      color: var(--text-muted);
    }

    /* 4. 核心优势六宫格 */
    .advantage-section {
      background: #F1F5F9;
    }
    .advantage-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .adv-card {
      background: #FFFFFF;
      border-radius: var(--radius-md);
      padding: 28px;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
    }
    .adv-card:hover {
      border-color: var(--primary);
      box-shadow: var(--shadow-md);
    }
    .adv-top {
      display: flex;
      justify-content: space-between;
      align-items: center;
      margin-bottom: 16px;
    }
    .adv-index {
      font-size: 14px;
      font-weight: 800;
      color: var(--accent);
      background: rgba(124, 58, 237, 0.08);
      padding: 2px 8px;
      border-radius: 6px;
    }
    .adv-badge {
      font-size: 12px;
      color: #059669;
      background: #ECFDF5;
      padding: 2px 8px;
      border-radius: 4px;
      font-weight: 600;
    }
    .adv-title {
      font-size: 18px;
      font-weight: 700;
      margin-bottom: 10px;
      color: var(--text-main);
    }
    .adv-detail {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.65;
    }

    /* 5. 跨平台产品矩阵容器（3大类型大卡片） */
    .product-section {
      background: #FFFFFF;
    }
    .product-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 30px;
    }
    .product-card {
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      overflow: hidden;
      background: #FFFFFF;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
    }
    .product-img-wrap {
      height: 200px;
      overflow: hidden;
      position: relative;
    }
    .product-img-wrap img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.5s ease;
    }
    .product-card:hover .product-img-wrap img {
      transform: scale(1.05);
    }
    .product-body {
      padding: 24px;
      flex: 1;
      display: flex;
      flex-direction: column;
    }
    .product-title {
      font-size: 19px;
      font-weight: 700;
      margin-bottom: 10px;
      color: var(--text-main);
    }
    .product-desc {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.65;
      margin-bottom: 18px;
      flex: 1;
    }
    .product-specs {
      border-top: 1px dashed var(--border-color);
      padding-top: 14px;
      display: flex;
      justify-content: space-between;
      font-size: 13px;
      color: var(--text-main);
      font-weight: 600;
    }
    .product-specs span {
      color: var(--accent);
    }

    /* 6. 深色内核理念对比区 */
    .kernel-section {
      background: var(--bg-dark);
      color: #FFFFFF;
      padding: 90px 0;
    }
    .kernel-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 50px;
      align-items: center;
    }
    .kernel-img-box {
      border-radius: var(--radius-lg);
      overflow: hidden;
      border: 1px solid var(--border-dark);
      position: relative;
      box-shadow: 0 20px 40px rgba(0,0,0,0.6);
    }
    .kernel-tech-list {
      display: flex;
      flex-direction: column;
      gap: 20px;
      margin-top: 24px;
    }
    .kernel-tech-item {
      display: flex;
      gap: 16px;
    }
    .kernel-tech-item .icon {
      flex-shrink: 0;
      width: 36px;
      height: 36px;
      border-radius: 8px;
      background: rgba(0, 220, 130, 0.15);
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: bold;
    }
    .kernel-tech-item h4 {
      font-size: 17px;
      margin-bottom: 6px;
      color: #FFFFFF;
    }
    .kernel-tech-item p {
      font-size: 14px;
      color: var(--text-light-muted);
      line-height: 1.6;
    }

    /* 7. 结果对比（实测运行性能评测表） */
    .comparison-section {
      background: var(--bg-light);
    }
    .table-container {
      background: #FFFFFF;
      border-radius: var(--radius-lg);
      box-shadow: var(--shadow-sm);
      border: 1px solid var(--border-color);
      overflow-x: auto;
    }
    .benchmark-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
      min-width: 680px;
    }
    .benchmark-table th, .benchmark-table td {
      padding: 18px 24px;
      font-size: 15px;
      border-bottom: 1px solid var(--border-color);
    }
    .benchmark-table th {
      background: #F8FAFC;
      color: var(--text-main);
      font-weight: 700;
    }
    .benchmark-table tr:last-child td {
      border-bottom: none;
    }
    .benchmark-table td.brand-col {
      font-weight: 700;
      color: #059669;
      background: #F0FDF4;
    }
    .benchmark-table .badge-opt {
      display: inline-block;
      font-size: 12px;
      background: #DCFCE7;
      color: #166534;
      padding: 2px 8px;
      border-radius: 4px;
      font-weight: 700;
    }

    /* 8. 成功路径与用户旅程条 */
    .journey-section {
      background: #FFFFFF;
    }
    .journey-steps {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      position: relative;
    }
    .journey-card {
      background: var(--bg-light);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px;
      position: relative;
    }
    .journey-num {
      width: 32px;
      height: 32px;
      background: var(--primary);
      color: #0B0F19;
      font-weight: 800;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      margin-bottom: 16px;
      font-size: 14px;
    }
    .journey-title {
      font-size: 17px;
      font-weight: 700;
      margin-bottom: 8px;
      color: var(--text-main);
    }
    .journey-desc {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.65;
    }

    /* 9. 里程碑与版本路线图 */
    .milestone-section {
      background: #0B0F19;
      color: #FFFFFF;
    }
    .milestone-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
    }
    .milestone-box {
      border: 1px solid var(--border-dark);
      border-radius: var(--radius-md);
      padding: 24px;
      background: rgba(255, 255, 255, 0.02);
      transition: var(--transition);
    }
    .milestone-box:hover {
      border-color: var(--primary);
      background: rgba(255, 255, 255, 0.04);
    }
    .milestone-time {
      font-size: 13px;
      font-weight: 700;
      color: var(--primary);
      margin-bottom: 8px;
      display: inline-block;
    }
    .milestone-h3 {
      font-size: 18px;
      font-weight: 700;
      margin-bottom: 10px;
      color: #FFFFFF;
    }
    .milestone-p {
      font-size: 14px;
      color: var(--text-light-muted);
      line-height: 1.6;
    }

    /* 10. 用户故事与实战案例 */
    .cases-section {
      background: #F8FAFC;
    }
    .cases-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 30px;
    }
    .case-card {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 32px;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .case-quote {
      font-size: 16px;
      color: var(--text-main);
      line-height: 1.75;
      margin-bottom: 24px;
      position: relative;
    }
    .case-author-wrap {
      display: flex;
      align-items: center;
      gap: 14px;
      border-top: 1px solid var(--border-color);
      padding-top: 20px;
    }
    .case-avatar {
      width: 48px;
      height: 48px;
      border-radius: 50%;
      background: #E2E8F0;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: bold;
      color: var(--accent);
      flex-shrink: 0;
    }
    .case-name {
      font-size: 15px;
      font-weight: 700;
      color: var(--text-main);
    }
    .case-title {
      font-size: 13px;
      color: var(--text-muted);
    }

    /* 11. 资讯动态列表 */
    .news-section {
      background: #FFFFFF;
    }
    .news-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 26px;
    }
    .news-card {
      background: var(--bg-light);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px;
      transition: var(--transition);
      display: flex;
      flex-direction: column;
    }
    .news-card:hover {
      border-color: var(--accent);
      transform: translateY(-4px);
    }
    .news-meta {
      display: flex;
      justify-content: space-between;
      font-size: 13px;
      color: var(--text-muted);
      margin-bottom: 12px;
    }
    .news-title {
      font-size: 18px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 10px;
      line-height: 1.4;
    }
    .news-summary {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.6;
      flex: 1;
    }

    /* 12. 平台保障与兼容认证矩阵 */
    .trust-section {
      background: #F1F5F9;
      padding: 60px 0;
    }
    .trust-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }
    .trust-badge-card {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 22px;
      text-align: center;
    }
    .trust-badge-card h4 {
      font-size: 16px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 6px;
    }
    .trust-badge-card p {
      font-size: 13px;
      color: var(--text-muted);
    }

    /* 13. 快速解答与常见问题 FAQ */
    .faq-section {
      background: #FFFFFF;
    }
    .faq-list {
      max-width: 860px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 16px;
    }
    .faq-item {
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
      background: #FFFFFF;
      transition: var(--transition);
    }
    .faq-item.active {
      border-color: var(--primary);
      box-shadow: var(--shadow-sm);
    }
    .faq-question {
      padding: 20px 24px;
      font-size: 17px;
      font-weight: 700;
      color: var(--text-main);
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      background: #FFFFFF;
      user-select: none;
    }
    .faq-icon {
      font-size: 20px;
      color: var(--accent);
      transition: transform 0.3s ease;
    }
    .faq-item.active .faq-icon {
      transform: rotate(45deg);
      color: var(--primary);
    }
    .faq-answer {
      display: none;
      padding: 0 24px 22px 24px;
      font-size: 15px;
      color: var(--text-muted);
      line-height: 1.7;
      border-top: 1px solid transparent;
    }
    .faq-item.active .faq-answer {
      display: block;
      border-top: 1px solid #F1F5F9;
      padding-top: 16px;
    }

    /* 14. 商业转化表单（预约与咨询收口） */
    .cta-section {
      background: linear-gradient(135deg, #0B0F19 0%, #172554 100%);
      color: #FFFFFF;
      padding: 80px 0;
    }
    .form-container {
      max-width: 760px;
      margin: 0 auto;
      background: rgba(255, 255, 255, 0.04);
      border: 1px solid var(--border-dark);
      border-radius: var(--radius-lg);
      padding: 40px;
      backdrop-filter: blur(10px);
    }
    .form-header {
      text-align: center;
      margin-bottom: 30px;
    }
    .form-header h2 {
      font-size: 28px;
      font-weight: 800;
      color: #FFFFFF;
      margin-bottom: 10px;
    }
    .form-header p {
      font-size: 15px;
      color: var(--text-light-muted);
    }
    .form-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 20px;
    }
    .form-full {
      grid-column: span 2;
    }
    .form-group label {
      display: block;
      font-size: 14px;
      font-weight: 600;
      color: var(--text-light);
      margin-bottom: 8px;
    }
    .form-control {
      width: 100%;
      padding: 12px 16px;
      border-radius: var(--radius-sm);
      background: rgba(255, 255, 255, 0.08);
      border: 1px solid rgba(255, 255, 255, 0.2);
      color: #FFFFFF;
      font-size: 15px;
      outline: none;
      transition: var(--transition);
    }
    .form-control:focus {
      border-color: var(--primary);
      box-shadow: 0 0 0 3px rgba(0, 220, 130, 0.2);
    }
    select.form-control {
      appearance: none;
      background-color: #111827;
    }
    .checkbox-group {
      display: flex;
      gap: 16px;
      flex-wrap: wrap;
      margin-top: 4px;
    }
    .checkbox-label {
      display: flex;
      align-items: center;
      gap: 6px;
      font-size: 14px;
      color: var(--text-light-muted);
      cursor: pointer;
    }
    .submit-btn {
      width: 100%;
      padding: 16px;
      font-size: 16px;
      font-weight: 700;
      background: var(--primary);
      color: #0B0F19;
      border: none;
      border-radius: var(--radius-sm);
      cursor: pointer;
      box-shadow: var(--shadow-glow);
      transition: var(--transition);
      margin-top: 10px;
    }
    .submit-btn:hover {
      background: var(--primary-hover);
      transform: translateY(-2px);
    }
    .form-notice {
      text-align: center;
      font-size: 12px;
      color: var(--text-light-muted);
      margin-top: 14px;
    }

    /* 页脚 */
    footer.site-footer {
      background: #060911;
      color: var(--text-light-muted);
      padding: 60px 0 30px 0;
      font-size: 14px;
      border-top: 1px solid rgba(255, 255, 255, 0.08);
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1.5fr;
      gap: 40px;
      margin-bottom: 40px;
    }
    .footer-brand h3 {
      color: #FFFFFF;
      font-size: 18px;
      font-weight: 800;
      margin-bottom: 14px;
    }
    .footer-brand p {
      line-height: 1.7;
      margin-bottom: 16px;
      max-width: 340px;
    }
    .footer-col h4 {
      color: #FFFFFF;
      font-size: 15px;
      font-weight: 700;
      margin-bottom: 16px;
    }
    .footer-links {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }
    .footer-links a:hover {
      color: var(--primary);
    }
    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.06);
      padding-top: 24px;
      text-align: center;
      font-size: 13px;
    }

    /* 响应式断点 */
    @media (max-width: 1024px) {
      .hero-grid, .kernel-grid {
        grid-template-columns: 1fr;
      }
      .kpi-grid, .milestone-grid, .trust-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .matrix-grid, .advantage-grid, .product-grid, .news-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .journey-steps {
        grid-template-columns: repeat(2, 1fr);
      }
      .footer-grid {
        grid-template-columns: repeat(2, 1fr);
      }
    }

    @media (max-width: 768px) {
      .mobile-menu-toggle {
        display: flex;
      }
      .nav-links {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        width: 100%;
        background: #0B0F19;
        flex-direction: column;
        padding: 24px;
        gap: 18px;
        border-bottom: 1px solid var(--border-dark);
      }
      .nav-links.open {
        display: flex;
      }
      .header-cta-btn {
        display: none;
      }
      .hero-h1 {
        font-size: 32px;
      }
      .section-title {
        font-size: 26px;
      }
      .matrix-grid, .advantage-grid, .product-grid, .news-grid, .cases-grid {
        grid-template-columns: 1fr;
      }
      .form-grid {
        grid-template-columns: 1fr;
      }
      .form-full {
        grid-column: span 1;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
    }

    @media (max-width: 480px) {
      .kpi-grid, .milestone-grid, .trust-grid, .journey-steps {
        grid-template-columns: 1fr;
      }
    }