/* roulang page: index */
:root {
      --bg-dark: #0B0E14;
      --bg-card: #141923;
      --bg-card-alt: #1B2230;
      --primary: #00F298;
      --primary-hover: #00d984;
      --primary-glow: rgba(0, 242, 152, 0.15);
      --text-main: #F8FAFC;
      --text-muted: #94A3B8;
      --text-dim: #64748B;
      --border-color: rgba(255, 255, 255, 0.08);
      --border-focus: rgba(0, 242, 152, 0.4);
      --danger: #FF4D4D;
      --info: #0EA5E9;
      --radius-sm: 4px;
      --radius-md: 6px;
      --transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
      --container-width: 1200px;
    }

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

    html {
      scroll-behavior: smooth;
      background-color: var(--bg-dark);
      color: var(--text-main);
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      line-height: 1.75;
      letter-spacing: -0.01em;
    }

    body {
      overflow-x: hidden;
      min-height: 100vh;
      display: flex;
      flex-direction: column;
    }

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

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

    button, input, textarea, select {
      font-family: inherit;
      color: inherit;
      border: none;
      outline: none;
    }

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

    /* 顶部状态条 */
    .top-status-bar {
      background: #06080C;
      border-bottom: 1px solid var(--border-color);
      font-size: 13px;
      color: var(--text-dim);
      padding: 6px 0;
    }
    .top-status-bar .container {
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 12px;
    }
    .status-badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      color: var(--text-muted);
    }
    .status-dot {
      width: 8px;
      height: 8px;
      background: var(--primary);
      border-radius: 50%;
      box-shadow: 0 0 8px var(--primary);
    }

    /* 主导航 */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 100;
      background: rgba(11, 14, 20, 0.95);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border-color);
    }
    .nav-inner {
      height: 72px;
      display: flex;
      align-items: center;
      justify-content: space-between;
    }
    .brand-logo {
      font-size: 20px;
      font-weight: 700;
      color: var(--text-main);
      display: flex;
      align-items: center;
      gap: 10px;
      letter-spacing: -0.02em;
    }
    .brand-logo-icon {
      width: 32px;
      height: 32px;
      border: 1px solid var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--primary);
      font-size: 14px;
      font-weight: 800;
      border-radius: var(--radius-sm);
    }
    .nav-menu {
      display: flex;
      align-items: center;
      gap: 24px;
      list-style: none;
    }
    .nav-menu a {
      font-size: 14px;
      color: var(--text-muted);
      font-weight: 500;
    }
    .nav-menu a:hover, .nav-menu a.active {
      color: var(--primary);
    }
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 10px 22px;
      font-size: 14px;
      font-weight: 600;
      border-radius: var(--radius-md);
      cursor: pointer;
      transition: var(--transition);
      white-space: nowrap;
    }
    .btn-primary {
      background: var(--primary);
      color: #06080C;
    }
    .btn-primary:hover {
      background: var(--primary-hover);
      box-shadow: 0 0 16px var(--primary-glow);
      transform: translateY(-2px);
    }
    .btn-outline {
      background: transparent;
      border: 1px solid var(--border-color);
      color: var(--text-main);
    }
    .btn-outline:hover {
      border-color: var(--primary);
      color: var(--primary);
      background: rgba(0, 242, 152, 0.05);
    }

    /* 移动端菜单按钮 */
    .menu-toggle {
      display: none;
      background: none;
      color: var(--text-main);
      font-size: 22px;
      cursor: pointer;
    }

    /* 板块通用 */
    section {
      padding: 96px 0;
      border-bottom: 1px solid var(--border-color);
      position: relative;
    }
    .section-alt {
      background: var(--bg-card);
    }
    .section-header {
      margin-bottom: 48px;
    }
    .section-tag {
      font-size: 12px;
      font-weight: 600;
      text-transform: uppercase;
      color: var(--primary);
      letter-spacing: 0.1em;
      margin-bottom: 12px;
      display: inline-block;
    }
    .section-title {
      font-size: 32px;
      font-weight: 700;
      line-height: 1.25;
      color: var(--text-main);
      letter-spacing: -0.02em;
      margin-bottom: 16px;
    }
    .section-desc {
      font-size: 16px;
      color: var(--text-muted);
      max-width: 800px;
      line-height: 1.8;
    }

    /* 1. Hero 品牌旗舰展示 */
    .hero-section {
      position: relative;
      padding: 120px 0 100px;
      background: linear-gradient(180deg, rgba(11, 14, 20, 0.8) 0%, rgba(11, 14, 20, 0.98) 100%),
                  url('/assets/images/3890b79b07c83b6f.webp') center/cover no-repeat;
      border-bottom: 1px solid var(--border-color);
      min-height: 680px;
      display: flex;
      align-items: center;
    }
    .hero-content {
      max-width: 860px;
    }
    .hero-title {
      font-size: 46px;
      font-weight: 800;
      line-height: 1.2;
      color: var(--text-main);
      letter-spacing: -0.02em;
      margin-bottom: 24px;
    }
    .hero-title span {
      color: var(--primary);
    }
    .hero-desc {
      font-size: 17px;
      color: var(--text-muted);
      line-height: 1.8;
      margin-bottom: 36px;
    }
    .hero-action-group {
      display: flex;
      gap: 16px;
      flex-wrap: wrap;
      margin-bottom: 48px;
    }
    .hero-nav-strip {
      display: flex;
      gap: 12px;
      border-top: 1px solid var(--border-color);
      padding-top: 24px;
      flex-wrap: wrap;
    }
    .nav-strip-item {
      font-size: 13px;
      color: var(--text-dim);
      display: flex;
      align-items: center;
      gap: 8px;
      background: rgba(20, 25, 35, 0.6);
      padding: 8px 14px;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
    }
    .nav-strip-item strong {
      color: var(--text-main);
    }

    /* 2. sec-intro: 服务总览与资质 */
    .intro-grid {
      display: grid;
      grid-template-columns: 1.2fr 1fr;
      gap: 48px;
      align-items: center;
    }
    .intro-text-block h3 {
      font-size: 22px;
      margin-bottom: 16px;
      color: var(--text-main);
    }
    .intro-text-block p {
      color: var(--text-muted);
      margin-bottom: 20px;
      line-height: 1.8;
    }
    .compliance-box {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      padding: 32px;
      border-radius: var(--radius-md);
    }
    .compliance-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 18px;
    }
    .compliance-item {
      display: flex;
      gap: 14px;
      align-items: flex-start;
    }
    .compliance-icon {
      color: var(--primary);
      font-weight: bold;
      line-height: 1.5;
    }
    .compliance-item h4 {
      font-size: 15px;
      color: var(--text-main);
      margin-bottom: 4px;
    }
    .compliance-item p {
      font-size: 13px;
      color: var(--text-dim);
      line-height: 1.6;
    }

    /* 3. sec-painpoints: 资产威胁剖析 */
    .pain-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .pain-card {
      background: var(--bg-dark);
      border: 1px solid var(--border-color);
      padding: 28px;
      border-radius: var(--radius-md);
      transition: var(--transition);
      position: relative;
      overflow: hidden;
    }
    .pain-card::before {
      content: "";
      position: absolute;
      top: 0;
      left: 0;
      width: 4px;
      height: 100%;
      background: var(--danger);
      opacity: 0.5;
      transition: var(--transition);
    }
    .pain-card:hover {
      border-color: rgba(255, 77, 77, 0.4);
      transform: translateY(-2px);
    }
    .pain-card:hover::before {
      opacity: 1;
    }
    .pain-tag {
      font-size: 11px;
      color: var(--danger);
      font-weight: 700;
      letter-spacing: 0.05em;
      margin-bottom: 12px;
    }
    .pain-card h3 {
      font-size: 18px;
      margin-bottom: 12px;
      color: var(--text-main);
    }
    .pain-card p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* 4. sec-features: 6卡片核心优势 */
    .features-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .feature-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      padding: 32px 28px;
      border-radius: var(--radius-md);
      transition: var(--transition);
    }
    .feature-card:hover {
      border-color: var(--border-focus);
      box-shadow: 0 0 15px var(--primary-glow);
      transform: translateY(-2px);
    }
    .feature-idx {
      font-family: monospace;
      font-size: 13px;
      color: var(--primary);
      margin-bottom: 16px;
      display: block;
    }
    .feature-card h3 {
      font-size: 18px;
      margin-bottom: 12px;
      color: var(--text-main);
    }
    .feature-card p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* 5. sec-products: 3卡片方案矩阵对比 */
    .products-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .product-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 36px 28px;
      display: flex;
      flex-direction: column;
      position: relative;
      transition: var(--transition);
    }
    .product-card.featured {
      border-color: var(--primary);
      background: linear-gradient(180deg, rgba(20, 25, 35, 1) 0%, rgba(14, 26, 27, 0.5) 100%);
    }
    .product-badge {
      position: absolute;
      top: -12px;
      right: 24px;
      background: var(--primary);
      color: #06080C;
      font-size: 11px;
      font-weight: 700;
      padding: 3px 8px;
      border-radius: 2px;
    }
    .product-title {
      font-size: 20px;
      font-weight: 700;
      margin-bottom: 8px;
    }
    .product-desc {
      font-size: 13px;
      color: var(--text-dim);
      margin-bottom: 24px;
      line-height: 1.6;
    }
    .product-specs {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 14px;
      margin-bottom: 32px;
      flex-grow: 1;
    }
    .product-specs li {
      font-size: 13px;
      color: var(--text-muted);
      display: flex;
      justify-content: space-between;
      border-bottom: 1px dashed rgba(255, 255, 255, 0.05);
      padding-bottom: 6px;
    }
    .product-specs li span:last-child {
      color: var(--text-main);
      font-weight: 600;
    }

    /* 6. sec-philosophy: 零信任理念反色全宽 */
    .sec-philosophy-box {
      background: #06080C;
      border: 1px solid var(--border-color);
      padding: 56px 48px;
      border-radius: var(--radius-md);
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 48px;
      align-items: center;
    }
    .philosophy-quote {
      font-size: 26px;
      font-weight: 700;
      line-height: 1.4;
      color: var(--text-main);
    }
    .philosophy-quote span {
      color: var(--primary);
    }
    .philosophy-details p {
      color: var(--text-muted);
      font-size: 15px;
      line-height: 1.8;
      margin-bottom: 18px;
    }

    /* 7. sec-workflow: 四步实施流程 */
    .workflow-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }
    .workflow-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      padding: 28px 24px;
      border-radius: var(--radius-md);
      position: relative;
    }
    .step-num {
      font-size: 32px;
      font-weight: 800;
      color: rgba(255, 255, 255, 0.06);
      margin-bottom: 12px;
      display: block;
    }
    .workflow-card h3 {
      font-size: 17px;
      color: var(--primary);
      margin-bottom: 10px;
    }
    .workflow-card p {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* 8. sec-metrics: 关键数据条 */
    .metrics-bar {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      padding: 40px 24px;
      border-radius: var(--radius-md);
      text-align: center;
    }
    .metric-item .val {
      font-size: 38px;
      font-weight: 800;
      color: var(--primary);
      font-family: monospace;
      margin-bottom: 6px;
    }
    .metric-item .label {
      font-size: 13px;
      color: var(--text-muted);
      letter-spacing: 0.02em;
    }

    /* 9. sec-audience: 适用场景画像 */
    .audience-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .audience-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
      display: flex;
      flex-direction: column;
    }
    .audience-img {
      width: 100%;
      height: 180px;
      object-fit: cover;
    }
    .audience-body {
      padding: 24px;
    }
    .audience-body h3 {
      font-size: 18px;
      margin-bottom: 10px;
      color: var(--text-main);
    }
    .audience-body p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 14px;
    }
    .audience-fit {
      font-size: 12px;
      color: var(--primary);
      background: rgba(0, 242, 152, 0.08);
      padding: 6px 10px;
      border-radius: var(--radius-sm);
      display: inline-block;
    }

    /* 10. sec-stories: 真实案例复盘 */
    .stories-container {
      display: flex;
      flex-direction: column;
      gap: 48px;
    }
    .story-item {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 40px;
      align-items: center;
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
    }
    .story-item.reverse {
      direction: rtl;
    }
    .story-item.reverse .story-content {
      direction: ltr;
    }
    .story-img {
      width: 100%;
      height: 320px;
      object-fit: cover;
    }
    .story-content {
      padding: 32px;
    }
    .story-tag {
      font-size: 12px;
      color: var(--info);
      font-weight: 600;
      margin-bottom: 8px;
      display: block;
    }
    .story-title {
      font-size: 20px;
      margin-bottom: 14px;
      color: var(--text-main);
    }
    .story-desc {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.8;
      margin-bottom: 20px;
    }
    .story-result {
      border-left: 2px solid var(--primary);
      padding-left: 12px;
      font-size: 13px;
      color: var(--text-dim);
    }

    /* 11. sec-reviews: 权威评价 */
    .reviews-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 24px;
    }
    .review-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      padding: 28px;
      border-radius: var(--radius-md);
    }
    .review-quote {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.8;
      margin-bottom: 20px;
      font-style: italic;
    }
    .review-meta {
      display: flex;
      justify-content: space-between;
      align-items: center;
      border-top: 1px solid rgba(255, 255, 255, 0.05);
      padding-top: 14px;
    }
    .reviewer-name {
      font-size: 14px;
      font-weight: 600;
      color: var(--text-main);
    }
    .reviewer-role {
      font-size: 12px;
      color: var(--text-dim);
    }
    .review-badge {
      font-size: 11px;
      color: var(--primary);
      border: 1px solid rgba(0, 242, 152, 0.3);
      padding: 2px 6px;
      border-radius: 2px;
    }

    /* 12. sec-news: 预警资讯速递 */
    .news-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .news-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      padding: 24px;
      border-radius: var(--radius-md);
      transition: var(--transition);
      cursor: pointer;
    }
    .news-card:hover {
      border-color: var(--border-focus);
      transform: translateY(-2px);
    }
    .news-meta {
      display: flex;
      justify-content: space-between;
      font-size: 12px;
      color: var(--text-dim);
      margin-bottom: 10px;
    }
    .news-meta span:last-child {
      color: var(--danger);
      font-family: monospace;
    }
    .news-title {
      font-size: 16px;
      color: var(--text-main);
      margin-bottom: 12px;
      line-height: 1.4;
    }
    .news-summary {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* 13. sec-faq: 手风琴问答 */
    .faq-list {
      max-width: 900px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 16px;
    }
    .faq-item {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
    }
    .faq-header {
      padding: 20px 24px;
      font-size: 16px;
      font-weight: 600;
      color: var(--text-main);
      display: flex;
      justify-content: space-between;
      align-items: center;
      cursor: pointer;
      user-select: none;
      transition: var(--transition);
    }
    .faq-header:hover {
      background: rgba(255, 255, 255, 0.02);
      color: var(--primary);
    }
    .faq-icon {
      font-size: 18px;
      color: var(--text-dim);
      transition: var(--transition);
    }
    .faq-body {
      padding: 0 24px 20px;
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.8;
      display: none;
      border-top: 1px solid rgba(255, 255, 255, 0.04);
    }
    .faq-item.active .faq-body {
      display: block;
      padding-top: 16px;
    }
    .faq-item.active .faq-icon {
      transform: rotate(45deg);
      color: var(--primary);
    }

    /* 询盘表单区 (交付收口) */
    .inquiry-wrapper {
      max-width: 800px;
      margin: 0 auto;
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      padding: 44px;
      border-radius: var(--radius-md);
    }
    .form-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 20px;
      margin-bottom: 20px;
    }
    .form-group {
      display: flex;
      flex-direction: column;
      gap: 8px;
    }
    .form-group.full {
      grid-column: span 2;
    }
    .form-group label {
      font-size: 13px;
      color: var(--text-muted);
    }
    .form-control {
      background: var(--bg-dark);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      padding: 12px 16px;
      font-size: 14px;
      color: var(--text-main);
      transition: var(--transition);
    }
    .form-control:focus {
      border-color: var(--primary);
      box-shadow: 0 0 10px var(--primary-glow);
    }

    /* 页脚 */
    .site-footer {
      background: #06080C;
      border-top: 1px solid var(--border-color);
      padding: 64px 0 32px;
      font-size: 13px;
      color: var(--text-dim);
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1.5fr;
      gap: 40px;
      margin-bottom: 48px;
    }
    .footer-brand h4 {
      font-size: 16px;
      color: var(--text-main);
      margin-bottom: 12px;
    }
    .footer-brand p {
      line-height: 1.8;
      margin-bottom: 16px;
      color: var(--text-muted);
    }
    .footer-col h5 {
      font-size: 14px;
      color: var(--text-main);
      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, 0.05);
      padding-top: 24px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 16px;
    }

    /* 响应式调整 */
    @media (max-width: 1024px) {
      .pain-grid, .features-grid, .products-grid, .news-grid, .audience-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .workflow-grid, .metrics-bar {
        grid-template-columns: repeat(2, 1fr);
      }
      .footer-grid {
        grid-template-columns: 1fr 1fr;
      }
    }

    @media (max-width: 768px) {
      .menu-toggle {
        display: block;
      }
      .nav-menu {
        position: fixed;
        top: 72px;
        left: 0;
        width: 100%;
        background: #0B0E14;
        border-bottom: 1px solid var(--border-color);
        flex-direction: column;
        padding: 24px;
        display: none;
        gap: 16px;
      }
      .nav-menu.open {
        display: flex;
      }
      .intro-grid, .sec-philosophy-box, .story-item, .reviews-grid {
        grid-template-columns: 1fr;
      }
      .pain-grid, .features-grid, .products-grid, .news-grid, .audience-grid, .workflow-grid, .metrics-bar {
        grid-template-columns: 1fr;
      }
      .form-grid {
        grid-template-columns: 1fr;
      }
      .form-group.full {
        grid-column: span 1;
      }
      .hero-title {
        font-size: 32px;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
    }