/* roulang page: index */
:root {
      --primary: #0F2B48;
      --accent: #00C48C;
      --accent-purple: #6C5CE7;
      --bg-light: #F8FAFC;
      --text-main: #0F172A;
      --text-body: #334155;
    }
    body {
      color: var(--text-body);
      background-color: #ffffff;
      font-family: 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
      -webkit-font-smoothing: antialiased;
    }
    .custom-gradient-bg {
      background: linear-gradient(135deg, rgba(15, 43, 72, 0.96) 0%, rgba(10, 25, 47, 0.98) 100%);
    }
    .card-hover-effect {
      transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }
    .card-hover-effect:hover {
      transform: translateY(-4px);
      box-shadow: 0 20px 25px -5px rgba(15, 23, 42, 0.08), 0 8px 10px -6px rgba(15, 23, 42, 0.04);
    }
    .text-glow {
      text-shadow: 0 0 20px rgba(0, 196, 140, 0.4);
    }