/* roulang page: index */
:root {
      --primary: #1E40AF;
      --accent: #0284C7;
      --accent-light: #0EA5E9;
      --bg-base: #F8FAFC;
      --surface: #FFFFFF;
      --text-main: #0F172A;
      --text-body: #334155;
      --text-muted: #64748B;
      --border-color: #E2E8F0;
    }
    body {
      font-family: system-ui, -apple-system, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "WenQuanYi Micro Hei", sans-serif;
      background-color: var(--bg-base);
      color: var(--text-body);
      line-height: 1.75;
    }
    .custom-shadow {
      box-shadow: 0 1px 3px 0 rgb(0 0 0 / 0.08), 0 1px 2px -1px rgb(0 0 0 / 0.06);
    }
    .custom-shadow:hover {
      box-shadow: 0 10px 15px -3px rgb(0 0 0 / 0.08), 0 4px 6px -4px rgb(0 0 0 / 0.05);
      transform: translateY(-3px);
    }
    details summary::-webkit-details-marker {
      display: none;
    }