/* roulang page: index */
:root {
      --primary-color: #0F4C81;
      --accent-color: #00D084;
      --text-main: #0F172A;
      --text-muted: #475569;
      --bg-light: #F8FAFC;
      --border-soft: rgba(226, 232, 240, 0.85);
    }
    html {
      scroll-behavior: smooth;
      font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    }
    body {
      color: var(--text-main);
      background-color: #ffffff;
      line-height: 1.75;
      overflow-x: hidden;
    }
    .custom-shadow {
      box-shadow: 0 10px 30px -4px rgba(15, 23, 42, 0.06);
    }
    .hero-skew-box {
      transform: skewY(-2.5deg);
      transform-origin: top left;
    }
    .hero-skew-content {
      transform: skewY(2.5deg);
    }