/* roulang page: index */
:root {
      --primary: #0F4C3A;
      --primary-light: #1B6B53;
      --accent: #E59866;
      --bg-surface: #F8F9FA;
      --text-main: #1F2937;
      --text-muted: #4B5563;
      --border-color: #E5E7EB;
    }
    body {
      color: var(--text-main);
      background-color: #FFFFFF;
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    }
    .hero-slide {
      transition: opacity 0.8s ease-in-out;
    }