/* roulang page: index */
:root {
      --primary: #4F46E5;
      --secondary: #7C3AED;
      --bg-dark: #090D16;
      --text-main: #0F172A;
      --text-muted: #64748B;
      --border-color: #E2E8F0;
    }
    body {
      background-color: #F8FAFC;
      color: var(--text-main);
      overflow-x: hidden;
      font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    }
    .custom-gradient-btn {
      background: linear-gradient(135deg, #4F46E5 0%, #7C3AED 100%);
      transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }
    .custom-gradient-btn:hover {
      box-shadow: 0 8px 25px rgba(79, 70, 229, 0.35);
      transform: translateY(-2px);
    }
    .gradient-border-card {
      border: 1px solid #E2E8F0;
      transition: all 0.3s ease;
    }
    .gradient-border-card:hover {
      border-color: #7C3AED;
      box-shadow: 0 12px 30px -4px rgba(79, 70, 229, 0.12);
      transform: translateY(-4px);
    }
    .badge-pill {
      display: inline-flex;
      align-items: center;
      background: rgba(16, 185, 129, 0.08);
      border: 1px solid rgba(16, 185, 129, 0.25);
      color: #047857;
    }
    .code-console {
      background: #0B0F19;
      border: 1px solid #1E293B;
      font-family: Consolas, Monaco, "Courier New", monospace;
    }
    .step-line::after {
      content: '';
      position: absolute;
      top: 24px;
      left: 100%;
      width: 100%;
      height: 2px;
      background: #E2E8F0;
      z-index: 1;
    }
    @media (max-width: 1023px) {
      .step-line::after {
        display: none;
      }
    }
    details summary::-webkit-details-marker {
      display: none;
    }