/* roulang page: index */
:root {
      --primary: #EA580C;
      --dark: #0F172A;
      --card-bg: #FFFFFF;
      --text-main: #334155;
      --text-muted: #64748B;
      --border-light: #E2E8F0;
    }
    html {
      scroll-behavior: smooth;
      font-family: system-ui, -apple-system, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    }
    .custom-scroll::-webkit-scrollbar {
      height: 6px;
    }
    .custom-scroll::-webkit-scrollbar-thumb {
      background: #CBD5E1;
      border-radius: 4px;
    }