/* roulang page: index */
:root {
      --primary-color: #0F5B6C;
      --secondary-color: #10B981;
      --accent-color: #F59E0B;
      --bg-base: #F8FAFC;
      --text-main: #1E293B;
      --text-muted: #64748B;
    }
    html {
      scroll-behavior: smooth;
    }
    body {
      background-color: var(--bg-base);
      color: var(--text-main);
      font-family: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;
      line-height: 1.75;
      overflow-x: hidden;
    }
    .custom-scroll::-webkit-scrollbar {
      height: 6px;
    }
    .custom-scroll::-webkit-scrollbar-track {
      background: #F1F5F9;
      border-radius: 4px;
    }
    .custom-scroll::-webkit-scrollbar-thumb {
      background: #CBD5E1;
      border-radius: 4px;
    }
    .hero-mask {
      background: linear-gradient(135deg, rgba(15, 91, 108, 0.94) 0%, rgba(10, 37, 64, 0.88) 100%);
    }
    .badge-subtle {
      background: rgba(16, 185, 129, 0.12);
      color: #059669;
    }