/* roulang page: index */
:root {
      --primary: #0E4B5B;
      --primary-dark: #0A2533;
      --accent: #059669;
      --accent-light: #10B981;
      --bg-page: #F8FAFB;
      --text-main: #111827;
      --text-body: #374151;
      --text-muted: #6B7280;
    }
    html {
      scroll-behavior: smooth;
      font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "WenQuanYi Micro Hei", sans-serif;
    }
    body {
      background-color: var(--bg-page);
      color: var(--text-body);
      line-height: 1.75;
      overflow-x: hidden;
    }
    .custom-shadow {
      box-shadow: 0 4px 20px -2px rgba(14, 75, 91, 0.06);
    }
    .custom-shadow-hover:hover {
      box-shadow: 0 10px 25px -5px rgba(14, 75, 91, 0.12);
      transform: translateY(-2px);
    }
    .hero-mask {
      background: linear-gradient(135deg, rgba(10, 37, 51, 0.94) 0%, rgba(14, 75, 91, 0.88) 100%);
    }