/* roulang page: index */
:root {
      --primary: #15803d;
      --primary-dark: #14532d;
      --secondary: #d97706;
      --bg-light: #f8fafc;
      --text-main: #1e293b;
      --text-muted: #64748b;
    }
    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      color: var(--text-main);
      background-color: #ffffff;
      line-height: 1.6;
    }
    .hero-gradient {
      background: radial-gradient(circle at top right, rgba(220, 252, 231, 0.6), transparent 50%),
                  radial-gradient(circle at bottom left, rgba(254, 243, 199, 0.5), transparent 50%),
                  #ffffff;
    }