/* roulang page: index */
:root {
      --primary-color: #0F766E;
      --accent-color: #F97316;
      --text-main: #0F172A;
      --text-muted: #475569;
      --bg-alt: #F8FAFC;
    }
    html {
      scroll-behavior: smooth;
    }
    body {
      font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      color: var(--text-main);
      background-color: #F8FAFC;
      line-height: 1.75;
      text-rendering: optimizeLegibility;
      -webkit-font-smoothing: antialiased;
    }
    .custom-scroll::-webkit-scrollbar {
      height: 6px;
      width: 6px;
    }
    .custom-scroll::-webkit-scrollbar-thumb {
      background: #CBD5E1;
      border-radius: 9999px;
    }
    .hero-bg-overlay {
      background: linear-gradient(135deg, rgba(15, 23, 42, 0.88) 0%, rgba(15, 118, 110, 0.82) 100%), url('/assets/images/2b6a388090c8998c.jpg') center/cover no-repeat;
    }
    .dark-glow {
      box-shadow: 0 20px 50px -15px rgba(15, 118, 110, 0.3);
    }