/* roulang page: index */
:root {
      --color-primary: #0F241D;
      --color-accent: #10B981;
      --color-accent-hover: #059669;
      --color-secondary: #F59E0B;
      --color-dark-surface: #091310;
      --color-light-surface: #F8FAFC;
      --color-border: #E2E8F0;
      --color-text-main: #0F172A;
      --color-text-body: #334155;
      --color-text-muted: #64748B;
      --radius-sm: 6px;
      --radius-md: 8px;
      --radius-lg: 16px;
    }

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

    html {
      scroll-behavior: smooth;
      font-family: 'Plus Jakarta Sans', 'Noto Sans SC', system-ui, -apple-system, sans-serif;
      color: var(--color-text-body);
      background-color: #FFFFFF;
      overflow-x: hidden;
    }

    /* 保证锚点跳转不被固定顶部栏遮挡 */
    section[id], div[id] {
      scroll-margin-top: 100px;
    }

    /* 经典卡片质感 */
    .saas-card {
      background: #FFFFFF;
      border: 1px solid var(--color-border);
      border-radius: var(--radius-md);
      box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.04);
      transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
    }
    .saas-card:hover {
      transform: translateY(-4px);
      border-color: rgba(16, 185, 129, 0.4);
      box-shadow: 0 10px 25px -5px rgba(15, 36, 29, 0.08);
    }

    .saas-dark-card {
      background: #12211B;
      border: 1px solid rgba(255, 255, 255, 0.08);
      border-radius: var(--radius-md);
      transition: all 0.25s ease;
    }
    .saas-dark-card:hover {
      border-color: rgba(16, 185, 129, 0.4);
      background: #172B23;
    }

    .btn-primary {
      background-color: var(--color-accent);
      color: #FFFFFF;
      font-weight: 600;
      border-radius: var(--radius-sm);
      transition: all 0.15s ease;
      display: inline-flex;
      align-items: center;
      justify-content: center;
    }
    .btn-primary:hover {
      background-color: var(--color-accent-hover);
      box-shadow: 0 4px 12px rgba(16, 185, 129, 0.25);
    }
    .btn-primary:active {
      transform: scale(0.98);
    }

    .btn-outline {
      border: 1px solid var(--color-border);
      color: var(--color-text-main);
      font-weight: 600;
      border-radius: var(--radius-sm);
      transition: all 0.15s ease;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      background: #FFFFFF;
    }
    .btn-outline:hover {
      border-color: var(--color-accent);
      color: var(--color-accent);
      background-color: #F0FDF4;
    }

    .badge-status {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      font-size: 0.75rem;
      font-weight: 600;
      padding: 2px 10px;
      border-radius: 9999px;
    }

    /* 手风琴原生细节美化 */
    details > summary {
      list-style: none;
    }
    details > summary::-webkit-details-marker {
      display: none;
    }
    details[open] summary svg {
      transform: rotate(180deg);
    }

    /* 极简无衬线大数字 */
    .metric-number {
      font-family: 'Plus Jakarta Sans', sans-serif;
      letter-spacing: -0.03em;
    }