/* roulang page: index */
:root {
      --primary: #1E40AF;
      --accent: #0284C7;
      --bg-base: #F8FAFC;
      --text-main: #0F172A;
      --text-muted: #475569;
      --border-color: #E2E8F0;
    }
    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Microsoft YaHei", sans-serif;
      background-color: var(--bg-base);
      color: var(--text-main);
      overflow-x: hidden;
      margin: 0;
      padding: 0;
      box-sizing: border-box;
    }
    .custom-scroll-bar::-webkit-scrollbar {
      height: 6px;
      width: 6px;
    }
    .custom-scroll-bar::-webkit-scrollbar-track {
      background: #f1f5f9;
    }
    .custom-scroll-bar::-webkit-scrollbar-thumb {
      background: #cbd5e1;
      border-radius: 9999px;
    }
    .hero-bg-overlay {
      background-image: linear-gradient(180deg, rgba(15, 23, 42, 0.85) 0%, rgba(15, 23, 42, 0.94) 100%), url('/assets/images/d43dc43d6210d1a3.webp');
      background-size: cover;
      background-position: center;
    }