/* roulang page: index */
:root {
      --primary-teal: #0F766E;
      --primary-gradient: linear-gradient(135deg, #0D9488 0%, #14B8A6 100%);
      --accent-orange: #F97316;
      --bg-slate: #F8FAFC;
    }
    html {
      scroll-behavior: smooth;
    }
    body {
      background-color: var(--bg-slate);
      color: #0F172A;
      font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    }
    .card-shadow {
      box-shadow: 0 10px 25px -5px rgba(15, 118, 110, 0.06), 0 8px 10px -6px rgba(0, 0, 0, 0.04);
    }
    .card-shadow-hover:hover {
      box-shadow: 0 20px 30px -10px rgba(15, 118, 110, 0.12), 0 10px 15px -5px rgba(0, 0, 0, 0.05);
    }
    details summary::-webkit-details-marker {
      display: none;
    }