/* roulang page: index */
:root {
      --color-primary: #0A4D68;
      --color-secondary: #088395;
      --color-cyan: #05BFDB;
      --color-accent: #FF6B6B;
      --color-dark: #051923;
      --color-bg: #F4F9F9;
      --color-text: #1E293B;
      --color-muted: #64748B;
    }
    body {
      font-family: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;
      color: var(--color-text);
      background-color: var(--color-bg);
      line-height: 1.7;
    }
    .custom-shadow {
      box-shadow: 0 10px 25px -5px rgba(8, 131, 149, 0.08), 0 8px 10px -6px rgba(10, 77, 104, 0.05);
    }
    .hero-bg-overlay {
      background: linear-gradient(135deg, rgba(5, 25, 35, 0.88) 0%, rgba(10, 77, 104, 0.82) 100%);
    }