/* roulang page: index */
:root {
      --primary: #1D4ED8;
      --primary-dark: #1E3A8A;
      --accent: #EA580C;
      --bg-slate: #F8FAFC;
      --text-main: #0F172A;
      --text-muted: #475569;
      --border-color: #E2E8F0;
    }
    html {
      scroll-behavior: smooth;
      font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Segoe UI", Roboto, sans-serif;
    }
    body {
      background-color: #F8FAFC;
      color: #334155;
      overflow-x: hidden;
      line-height: 1.65;
    }
    .hero-glow {
      background: radial-gradient(circle at 50% 30%, rgba(29, 78, 216, 0.15) 0%, rgba(248, 250, 252, 0) 70%);
    }
    .custom-scrollbar::-webkit-scrollbar {
      height: 6px;
      width: 6px;
    }
    .custom-scrollbar::-webkit-scrollbar-thumb {
      background: #CBD5E1;
      border-radius: 9999px;
    }
    details summary::-webkit-details-marker {
      display: none;
    }