/* roulang page: index */
:root {
      --primary: #1E40AF;
      --primary-light: #2563EB;
      --accent-cyan: #06B6D4;
      --bg-slate: #F8FAFC;
    }
    body {
      font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "WenQuanYi Micro Hei", sans-serif;
      background-color: #FFFFFF;
      color: #1E293B;
      overflow-x: hidden;
    }
    .custom-shadow {
      box-shadow: 0 10px 30px -5px rgba(30, 64, 175, 0.08), 0 4px 6px -2px rgba(0, 0, 0, 0.04);
    }
    .hover-card-transition {
      transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }
    .hover-card-transition:hover {
      transform: translateY(-4px);
      box-shadow: 0 20px 35px -10px rgba(30, 64, 175, 0.15);
    }