/* roulang page: index */
:root {
      --primary: #059669;
      --primary-hover: #047857;
      --accent: #f97316;
      --dark-slate: #0f172a;
      --light-bg: #f8fafc;
      --text-main: #0f172a;
      --text-muted: #475569;
      --border-color: #e2e8f0;
    }
    body {
      color: var(--text-main);
      background-color: #ffffff;
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      overflow-x: hidden;
    }
    .hero-bg-overlay {
      background: linear-gradient(135deg, rgba(15, 23, 42, 0.94) 0%, rgba(6, 78, 59, 0.90) 100%), url('/assets/images/287e05aca80baf05.png') center/cover no-repeat;
    }
    .code-dark-panel {
      background: #090d16;
      border: 1px solid #1e293b;
      box-shadow: 0 20px 35px -10px rgba(0,0,0,0.5);
    }