/* roulang page: index */
:root {
      --primary-color: #0F5B5C;
      --primary-dark: #0A2628;
      --accent-green: #10B981;
      --accent-warm: #F59E0B;
      --bg-page: #F8FAFB;
      --text-main: #1E293B;
      --text-muted: #475569;
    }
    html {
      scroll-behavior: smooth;
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    }
    body {
      background-color: var(--bg-page);
      color: var(--text-main);
      overflow-x: hidden;
      line-height: 1.6;
    }
    .custom-scroll::-webkit-scrollbar {
      height: 6px;
    }
    .custom-scroll::-webkit-scrollbar-thumb {
      background: #CBD5E1;
      border-radius: 9999px;
    }
    details summary::-webkit-details-marker {
      display: none;
    }
    details[open] summary svg {
      transform: rotate(180deg);
    }