/* roulang page: index */
:root {
      --primary: #0C7670;
      --primary-hover: #085450;
      --accent: #E07A5F;
      --bg-surface: #F8FAFA;
      --text-dark: #1A252C;
      --border-color: #E2E8F0;
    }
    body {
      font-family: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
      color: var(--text-dark);
      background-color: var(--bg-surface);
      line-height: 1.75;
    }
    .shadow-soft {
      box-shadow: 0 10px 30px -5px rgba(12, 118, 112, 0.08);
    }
    .shadow-hover {
      transition: transform 0.25s ease, box-shadow 0.25s ease;
    }
    .shadow-hover:hover {
      transform: translateY(-4px);
      box-shadow: 0 15px 35px -5px rgba(12, 118, 112, 0.14);
    }