/* roulang page: index */
:root {
      --primary-navy: #0A2540;
      --accent-cyan: #00D4B2;
      --accent-amber: #F59E0B;
      --bg-light: #F8FAFC;
      --border-color: #E2E8F0;
    }
    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      color: #0F172A;
      background-color: #FFFFFF;
      overflow-x: hidden;
    }
    .custom-shadow {
      box-shadow: 0 4px 20px -2px rgba(10, 37, 64, 0.06), 0 2px 6px -1px rgba(10, 37, 64, 0.04);
    }
    .hover-lift {
      transition: transform 0.25s ease, box-shadow 0.25s ease;
    }
    .hover-lift:hover {
      transform: translateY(-4px);
      box-shadow: 0 12px 24px -6px rgba(10, 37, 64, 0.12);
    }
    .bg-grid-pattern {
      background-size: 32px 32px;
      background-image: linear-gradient(to right, rgba(226, 232, 240, 0.4) 1px, transparent 1px),
                        linear-gradient(to bottom, rgba(226, 232, 240, 0.4) 1px, transparent 1px);
    }