/* roulang page: index */
:root {
      --primary: #0A192F;
      --accent: #FF5500;
      --secondary: #00C49F;
      --bg-light: #F8FAFC;
      --border-color: rgba(15, 23, 42, 0.08);
    }
    html {
      scroll-behavior: smooth;
    }
    body {
      color: #334155;
      background-color: #FFFFFF;
      font-family: 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
      line-height: 1.7;
    }
    .custom-shadow {
      box-shadow: 0 10px 30px -10px rgba(10, 25, 47, 0.08);
    }
    .custom-shadow-hover {
      transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }
    .custom-shadow-hover:hover {
      transform: translateY(-4px);
      box-shadow: 0 20px 35px -10px rgba(10, 25, 47, 0.16);
    }
    .glow-orange {
      box-shadow: 0 0 20px rgba(255, 85, 0, 0.35);
    }
    .glow-teal {
      box-shadow: 0 0 20px rgba(0, 196, 159, 0.35);
    }