/* roulang page: index */
:root {
      --primary: #2563eb;
      --primary-hover: #1d4ed8;
      --bg-dark: #0F141C;
      --bg-light: #F9FAFB;
      --text-main: #1E293B;
      --text-muted: #64748B;
      --border-color: #E2E8F0;
    }
    html {
      scroll-behavior: smooth;
      font-family: Inter, -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    }
    body {
      background-color: #ffffff;
      color: var(--text-main);
      line-height: 1.75;
      overflow-x: hidden;
    }
    .hero-glow {
      background: radial-gradient(circle at 50% 30%, rgba(37, 99, 235, 0.12) 0%, rgba(15, 20, 28, 0) 70%);
    }
    .glass-card {
      background: rgba(255, 255, 255, 0.95);
      backdrop-filter: blur(12px);
      border: 1px solid rgba(226, 232, 240, 0.8);
    }
    .custom-shadow {
      box-shadow: 0 10px 30px -5px rgba(15, 23, 42, 0.05), 0 4px 6px -2px rgba(15, 23, 42, 0.02);
    }
    .hover-lift {
      transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    }
    .hover-lift:hover {
      transform: translateY(-4px);
      box-shadow: 0 20px 35px -10px rgba(15, 23, 42, 0.12);
    }
    .badge-indicator {
      display: inline-flex;
      align-items: center;
      padding: 0.25rem 0.75rem;
      border-radius: 9999px;
      font-size: 0.8125rem;
      font-weight: 500;
    }
    details summary::-webkit-details-marker {
      display: none;
    }