/* roulang page: index */
:root {
      --primary: #0F3E3D;
      --primary-dark: #0B2020;
      --accent: #1D7373;
      --highlight: #D97706;
      --bg-base: #F8FAF9;
      --text-main: #0A1C1C;
      --text-muted: #4A5568;
    }
    html { scroll-behavior: smooth; }
    body {
      font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      background-color: var(--bg-base);
      color: var(--text-main);
      overflow-x: hidden;
    }
    .custom-shadow { box-shadow: 0 10px 30px -5px rgba(15, 62, 61, 0.08); }
    .hero-bg {
      background-image: linear-gradient(rgba(11, 32, 32, 0.88), rgba(15, 62, 61, 0.94)), url('/assets/images/84e19b4c4c89d63e.webp');
      background-size: cover;
      background-position: center;
    }