/* roulang page: index */
:root {
      --primary: #10b981;
      --primary-dark: #064e3b;
      --accent: #f97316;
      --bg-light: #f8fafc;
      --text-main: #0f172a;
      --text-muted: #475569;
    }
    * {
      box-sizing: border-box;
      scroll-behavior: smooth;
    }
    body {
      font-family: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", sans-serif;
      color: var(--text-main);
      background-color: var(--bg-light);
      line-height: 1.75;
    }
    .custom-shadow {
      box-shadow: 0 10px 30px -5px rgba(16, 185, 129, 0.08), 0 4px 12px -2px rgba(0, 0, 0, 0.04);
    }
    .card-transition {
      transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }
    .card-transition:hover {
      transform: translateY(-4px);
      box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    }
    details summary::-webkit-details-marker {
      display: none;
    }