/* roulang page: index */
:root {
      --primary: #111827;
      --accent: #0D9488;
      --accent-hover: #0F766E;
      --bg-light: #F8FAFC;
      --bg-dark: #0B0F17;
      --text-main: #0F172A;
      --text-muted: #475569;
      --border-color: rgba(226, 232, 240, 0.8);
    }
    body {
      font-family: system-ui, -apple-system, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      color: var(--text-main);
      background-color: #FFFFFF;
      line-height: 1.75;
      text-rendering: optimizeLegibility;
      -webkit-font-smoothing: antialiased;
    }
    .custom-scrollbar::-webkit-scrollbar {
      height: 6px;
      width: 6px;
    }
    .custom-scrollbar::-webkit-scrollbar-thumb {
      background: #CBD5E1;
      border-radius: 4px;
    }
    details summary::-webkit-details-marker {
      display: none;
    }