/* roulang page: index */
:root {
      --bg-main: #0c0e12;
      --bg-card: rgba(22, 27, 34, 0.85);
      --bg-card-hover: rgba(29, 36, 46, 0.95);
      --primary: #00ff9d;
      --primary-dim: rgba(0, 255, 157, 0.12);
      --accent: #ff5722;
      --accent-dim: rgba(255, 87, 34, 0.12);
      --text-main: #f0f6fc;
      --text-sub: #8b949e;
      --text-muted: #57606a;
      --border: rgba(255, 255, 255, 0.08);
      --border-light: rgba(0, 255, 157, 0.25);
      --radius: 12px;
      --font-mono: "SF Mono", Monaco, Inconsolata, "Roboto Mono", Consolas, monospace;
      --shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
      --transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    }

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

    body {
      background-color: var(--bg-main);
      color: var(--text-main);
      font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      line-height: 1.7;
      overflow-x: hidden;
      font-size: 16px;
    }

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

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

    .container {
      width: 100%;
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 24px;
    }

    /* 顶部导航 */
    .header-nav {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(12, 14, 18, 0.85);
      backdrop-filter: blur(16px);
      -webkit-backdrop-filter: blur(16px);
      border-bottom: 1px solid var(--border);
    }

    .nav-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 72px;
    }

    .brand-logo {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 1.25rem;
      font-weight: 700;
      letter-spacing: -0.5px;
      color: #fff;
    }

    .brand-icon {
      width: 32px;
      height: 32px;
      border-radius: 8px;
      background: linear-gradient(135deg, var(--primary), #00b36b);
      display: flex;
      align-items: center;
      justify-content: center;
      color: #0c0e12;
      font-weight: 900;
      font-family: var(--font-mono);
      font-size: 14px;
    }

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

    .nav-links a {
      font-size: 0.95rem;
      color: var(--text-sub);
      font-weight: 500;
    }

    .nav-links a:hover,
    .nav-links a.active {
      color: var(--primary);
    }

    .nav-btn {
      display: inline-flex;
      align-items: center;
      padding: 9px 20px;
      background: var(--primary);
      color: #0c0e12;
      font-weight: 600;
      font-size: 0.9rem;
      border-radius: 6px;
      border: 1px solid var(--primary);
    }

    .nav-btn:hover {
      box-shadow: 0 0 15px rgba(0, 255, 157, 0.4);
      transform: translateY(-1px);
    }

    /* 移动端汉堡 */
    .menu-toggle {
      display: none;
      background: none;
      border: none;
      color: var(--text-main);
      font-size: 24px;
      cursor: pointer;
    }

    /* 板块通用 */
    section {
      padding: 90px 0;
      border-bottom: 1px solid var(--border);
      position: relative;
    }

    .section-head {
      margin-bottom: 48px;
    }

    .section-tag {
      display: inline-block;
      font-size: 0.8rem;
      text-transform: uppercase;
      font-family: var(--font-mono);
      letter-spacing: 1px;
      color: var(--primary);
      background: var(--primary-dim);
      padding: 4px 10px;
      border-radius: 4px;
      margin-bottom: 12px;
      border: 1px solid var(--border-light);
    }

    .section-title {
      font-size: 2.25rem;
      font-weight: 700;
      letter-spacing: -0.5px;
      line-height: 1.3;
      margin-bottom: 14px;
    }

    .section-desc {
      color: var(--text-sub);
      font-size: 1.05rem;
      max-width: 780px;
      line-height: 1.8;
    }

    /* Hero */
    .hero-section {
      position: relative;
      padding: 120px 0 100px;
      background: radial-gradient(circle at 80% 20%, rgba(0, 255, 157, 0.08) 0%, transparent 50%),
                  radial-gradient(circle at 10% 80%, rgba(255, 87, 34, 0.05) 0%, transparent 40%),
                  linear-gradient(180deg, #10141b 0%, var(--bg-main) 100%);
      overflow: hidden;
    }

    .hero-bg-media {
      position: absolute;
      top: 0;
      right: 0;
      bottom: 0;
      left: 0;
      background-image: url('/assets/images/342d957eb23e7ec0.webp');
      background-size: cover;
      background-position: center;
      opacity: 0.12;
      mix-blend-mode: luminosity;
      pointer-events: none;
    }

    .hero-content {
      position: relative;
      z-index: 2;
      max-width: 820px;
    }

    .hero-title {
      font-size: 3.25rem;
      font-weight: 800;
      letter-spacing: -1px;
      line-height: 1.2;
      margin-bottom: 24px;
    }

    .hero-title span {
      background: linear-gradient(90deg, #fff, var(--primary));
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    .hero-summary {
      font-size: 1.15rem;
      color: var(--text-sub);
      margin-bottom: 36px;
      line-height: 1.8;
    }

    .hero-actions {
      display: flex;
      gap: 16px;
      align-items: center;
      flex-wrap: wrap;
    }

    .btn-primary {
      padding: 14px 28px;
      background: var(--primary);
      color: #0c0e12;
      font-weight: 700;
      font-size: 1rem;
      border-radius: 6px;
      border: 1px solid var(--primary);
      cursor: pointer;
    }

    .btn-primary:hover {
      box-shadow: 0 0 20px rgba(0, 255, 157, 0.5);
      transform: translateY(-2px);
    }

    .btn-outline {
      padding: 14px 28px;
      background: rgba(255, 255, 255, 0.04);
      color: var(--text-main);
      font-weight: 600;
      font-size: 1rem;
      border-radius: 6px;
      border: 1px solid var(--border);
    }

    .btn-outline:hover {
      background: rgba(255, 255, 255, 0.08);
      border-color: rgba(255, 255, 255, 0.2);
    }

    /* 指标看板 */
    .dashboard-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }

    .dash-card {
      background: var(--bg-card);
      border: 1px solid var(--border);
      border-radius: var(--radius);
      padding: 24px;
      position: relative;
      overflow: hidden;
      backdrop-filter: blur(8px);
      transition: var(--transition);
    }

    .dash-card:hover {
      border-color: var(--border-light);
      transform: translateY(-4px);
      box-shadow: var(--shadow);
    }

    .dash-metric {
      font-family: var(--font-mono);
      font-size: 2.75rem;
      font-weight: 700;
      color: var(--primary);
      margin-bottom: 6px;
      line-height: 1.1;
    }

    .dash-metric span {
      font-size: 1.25rem;
      color: var(--text-sub);
    }

    .dash-label {
      font-size: 1.05rem;
      font-weight: 600;
      margin-bottom: 8px;
      color: #fff;
    }

    .dash-card p {
      font-size: 0.875rem;
      color: var(--text-sub);
      line-height: 1.6;
    }

    /* 服务矩阵 */
    .matrix-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .matrix-card {
      background: var(--bg-card);
      border: 1px solid var(--border);
      border-radius: var(--radius);
      padding: 32px 24px;
      transition: var(--transition);
    }

    .matrix-card:hover {
      border-color: var(--border-light);
      background: var(--bg-card-hover);
    }

    .matrix-icon {
      width: 48px;
      height: 48px;
      background: rgba(0, 255, 157, 0.1);
      border-radius: 8px;
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--primary);
      margin-bottom: 20px;
      font-size: 1.25rem;
      font-family: var(--font-mono);
      font-weight: 700;
    }

    .matrix-card h3 {
      font-size: 1.25rem;
      margin-bottom: 12px;
    }

    .matrix-card p {
      color: var(--text-sub);
      font-size: 0.95rem;
      line-height: 1.7;
    }

    /* 结果对比选型 */
    .compare-table-wrapper {
      background: var(--bg-card);
      border: 1px solid var(--border);
      border-radius: var(--radius);
      overflow-x: auto;
    }

    .compare-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
      font-size: 0.95rem;
    }

    .compare-table th,
    .compare-table td {
      padding: 18px 24px;
      border-bottom: 1px solid var(--border);
    }

    .compare-table th {
      background: rgba(255, 255, 255, 0.02);
      font-weight: 600;
      color: var(--text-main);
    }

    .compare-table tr.highlight-row {
      background: rgba(0, 255, 157, 0.03);
    }

    .compare-table tr:last-child td {
      border-bottom: none;
    }

    .badge-fast {
      background: var(--primary-dim);
      color: var(--primary);
      padding: 4px 8px;
      border-radius: 4px;
      font-size: 0.85rem;
      font-weight: 600;
    }

    .badge-slow {
      background: rgba(255, 87, 34, 0.1);
      color: var(--accent);
      padding: 4px 8px;
      border-radius: 4px;
      font-size: 0.85rem;
    }

    /* 里程碑流程 */
    .timeline-track {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      position: relative;
    }

    .timeline-item {
      background: var(--bg-card);
      border: 1px solid var(--border);
      border-radius: var(--radius);
      padding: 24px;
      position: relative;
    }

    .timeline-step {
      font-family: var(--font-mono);
      color: var(--primary);
      font-size: 0.9rem;
      font-weight: 700;
      margin-bottom: 12px;
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .timeline-item h4 {
      font-size: 1.15rem;
      margin-bottom: 10px;
    }

    .timeline-item p {
      font-size: 0.9rem;
      color: var(--text-sub);
    }

    /* 资讯与热榜混排蓝图 */
    .media-stream-wrap {
      display: grid;
      grid-template-columns: 2fr 1fr;
      gap: 32px;
    }

    .blog-item {
      display: flex;
      gap: 20px;
      padding: 20px;
      background: var(--bg-card);
      border: 1px solid var(--border);
      border-radius: var(--radius);
      margin-bottom: 20px;
      transition: var(--transition);
    }

    .blog-item:hover {
      border-color: var(--border-light);
      transform: translateX(4px);
    }

    .blog-img {
      width: 180px;
      height: 120px;
      border-radius: 8px;
      object-fit: cover;
      flex-shrink: 0;
    }

    .blog-info h4 {
      font-size: 1.15rem;
      margin-bottom: 8px;
      line-height: 1.4;
    }

    .blog-info p {
      font-size: 0.9rem;
      color: var(--text-sub);
      line-height: 1.6;
    }

    .hot-list {
      background: var(--bg-card);
      border: 1px solid var(--border);
      border-radius: var(--radius);
      padding: 24px;
      height: fit-content;
    }

    .hot-list h3 {
      font-size: 1.25rem;
      margin-bottom: 18px;
      padding-bottom: 12px;
      border-bottom: 1px solid var(--border);
    }

    .hot-item {
      display: flex;
      gap: 12px;
      align-items: flex-start;
      margin-bottom: 16px;
    }

    .hot-index {
      font-family: var(--font-mono);
      font-size: 1rem;
      font-weight: 700;
      color: var(--accent);
      min-width: 24px;
    }

    .hot-title {
      font-size: 0.95rem;
      line-height: 1.5;
      color: var(--text-main);
    }

    /* 平台保障 */
    .security-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .security-box {
      background: var(--bg-card);
      border: 1px solid var(--border);
      border-radius: var(--radius);
      padding: 28px;
    }

    .security-box h3 {
      font-size: 1.2rem;
      margin-bottom: 10px;
      color: var(--text-main);
    }

    .security-box p {
      color: var(--text-sub);
      font-size: 0.925rem;
    }

    /* 客户案例 */
    .case-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .case-card {
      background: var(--bg-card);
      border: 1px solid var(--border);
      border-radius: var(--radius);
      overflow: hidden;
      display: flex;
      flex-direction: column;
    }

    .case-cover {
      height: 180px;
      width: 100%;
      object-fit: cover;
    }

    .case-body {
      padding: 24px;
      flex: 1;
    }

    .case-tag {
      font-size: 0.75rem;
      color: var(--primary);
      text-transform: uppercase;
      margin-bottom: 8px;
      display: block;
      font-family: var(--font-mono);
    }

    .case-body h3 {
      font-size: 1.2rem;
      margin-bottom: 10px;
    }

    .case-body p {
      font-size: 0.9rem;
      color: var(--text-sub);
      line-height: 1.6;
    }

    /* 用户评价与故事 */
    .reviews-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .review-card {
      background: var(--bg-card);
      border: 1px solid var(--border);
      border-radius: var(--radius);
      padding: 28px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .review-stars {
      color: #ffb703;
      margin-bottom: 12px;
      font-size: 1.1rem;
    }

    .review-text {
      font-size: 0.95rem;
      color: var(--text-main);
      line-height: 1.7;
      margin-bottom: 20px;
    }

    .review-author {
      display: flex;
      align-items: center;
      gap: 12px;
    }

    .author-meta h5 {
      font-size: 0.95rem;
      color: #fff;
    }

    .author-meta span {
      font-size: 0.8rem;
      color: var(--text-sub);
    }

    /* FAQ 手风琴 */
    .faq-container {
      max-width: 860px;
      margin: 0 auto;
    }

    .faq-item {
      background: var(--bg-card);
      border: 1px solid var(--border);
      border-radius: var(--radius);
      margin-bottom: 16px;
      overflow: hidden;
    }

    .faq-question {
      padding: 20px 24px;
      font-size: 1.1rem;
      font-weight: 600;
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      user-select: none;
    }

    .faq-question::after {
      content: '+';
      font-family: var(--font-mono);
      font-size: 1.5rem;
      color: var(--primary);
      transition: transform 0.2s ease;
    }

    .faq-item.active .faq-question::after {
      transform: rotate(45deg);
    }

    .faq-answer {
      padding: 0 24px;
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s cubic-bezier(0, 1, 0, 1);
      color: var(--text-sub);
      font-size: 0.95rem;
      line-height: 1.8;
    }

    .faq-item.active .faq-answer {
      max-height: 400px;
      padding-bottom: 20px;
      transition: max-height 0.3s ease-in-out;
    }

    /* 转化表单 */
    .form-wrap {
      max-width: 720px;
      margin: 0 auto;
      background: var(--bg-card);
      border: 1px solid var(--border);
      border-radius: var(--radius);
      padding: 40px;
    }

    .form-row {
      margin-bottom: 20px;
    }

    .form-row label {
      display: block;
      font-size: 0.9rem;
      margin-bottom: 8px;
      color: var(--text-main);
    }

    .form-control {
      width: 100%;
      padding: 12px 16px;
      background: rgba(0, 0, 0, 0.4);
      border: 1px solid var(--border);
      border-radius: 6px;
      color: #fff;
      font-size: 0.95rem;
    }

    .form-control:focus {
      outline: none;
      border-color: var(--primary);
    }

    textarea.form-control {
      resize: vertical;
      min-height: 100px;
    }

    /* 页脚 */
    footer {
      background: #08090b;
      padding: 60px 0 30px;
      border-top: 1px solid var(--border);
      font-size: 0.875rem;
      color: var(--text-sub);
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1fr;
      gap: 40px;
      margin-bottom: 40px;
    }

    .footer-brand p {
      margin-top: 14px;
      line-height: 1.7;
      max-width: 320px;
    }

    .footer-links h4 {
      color: #fff;
      font-size: 1rem;
      margin-bottom: 16px;
    }

    .footer-links ul {
      list-style: none;
    }

    .footer-links li {
      margin-bottom: 10px;
    }

    .footer-links a:hover {
      color: var(--primary);
    }

    .footer-bottom {
      padding-top: 30px;
      border-top: 1px solid rgba(255, 255, 255, 0.05);
      display: flex;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 16px;
    }

    /* 响应式断点 */
    @media (max-width: 1024px) {
      .dashboard-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .matrix-grid,
      .security-grid,
      .case-grid,
      .reviews-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .timeline-track {
        grid-template-columns: repeat(2, 1fr);
      }
      .media-stream-wrap {
        grid-template-columns: 1fr;
      }
      .footer-grid {
        grid-template-columns: 1fr 1fr;
      }
    }

    @media (max-width: 768px) {
      .menu-toggle {
        display: block;
      }
      .nav-links {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        right: 0;
        background: #10141b;
        flex-direction: column;
        padding: 24px;
        border-bottom: 1px solid var(--border);
      }
      .nav-links.active {
        display: flex;
      }
      .nav-btn {
        display: none;
      }
      .hero-title {
        font-size: 2.25rem;
      }
      .dashboard-grid,
      .matrix-grid,
      .security-grid,
      .case-grid,
      .reviews-grid,
      .timeline-track {
        grid-template-columns: 1fr;
      }
      .blog-item {
        flex-direction: column;
      }
      .blog-img {
        width: 100%;
        height: 160px;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
    }