/* roulang page: index */
:root {
      --primary: #1A3038;
      --secondary: #0E7490;
      --accent: #D97706;
      --surface: #F8FAFC;
      --dark: #0F172A;
      --border: #E2E8F0;
    }
    body {
      background-color: var(--surface);
      color: #334155;
      font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      -webkit-font-smoothing: antialiased;
    }
    .custom-shadow {
      box-shadow: 0 4px 20px -2px rgba(15, 23, 42, 0.05);
    }
    .hero-bg {
      background: linear-gradient(135deg, rgba(26, 48, 56, 0.94) 0%, rgba(15, 23, 42, 0.92) 100%), url('/assets/images/ff6374ce8da5e359.png') center/cover no-repeat;
    }
    .deep-mesh {
      background: radial-gradient(circle at 15% 20%, rgba(14, 116, 144, 0.15) 0%, transparent 40%),
                  radial-gradient(circle at 85% 80%, rgba(217, 119, 6, 0.08) 0%, transparent 40%),
                  #0F172A;
    }
    .nav-blur {
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
    }