/* roulang page: index */
:root {
      --color-brand: #0A5C67;
      --color-brand-dark: #063B43;
      --color-brand-accent: #E76F51;
      --color-bg-light: #F4F7F6;
      --color-text-main: #1F2937;
      --color-text-muted: #4B5563;
    }
    body {
      background-color: #FAFCFB;
      color: var(--color-text-main);
      line-height: 1.75;
      font-family: system-ui, -apple-system, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      overflow-x: hidden;
    }
    .custom-scroll::-webkit-scrollbar {
      height: 4px;
    }
    .custom-scroll::-webkit-scrollbar-thumb {
      background: #CBD5E1;
      border-radius: 4px;
    }
    details summary::-webkit-details-marker {
      display: none;
    }