/* roulang page: index */
:root {
      --primary: #ea580c;
      --primary-dark: #c2410c;
      --bg-light: #f8fafc;
      --text-main: #0f172a;
      --text-muted: #64748b;
      --border-color: rgba(226, 232, 240, 0.8);
    }
    body {
      font-family: system-ui, -apple-system, 'PingFang SC', 'Microsoft YaHei', sans-serif;
      color: var(--text-main);
      background-color: var(--bg-light);
      scroll-padding-top: 80px;
    }
    .custom-card-shadow {
      box-shadow: 0 10px 25px -5px rgba(15, 23, 42, 0.05), 0 8px 10px -6px rgba(15, 23, 42, 0.04);
      transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }
    .custom-card-shadow:hover {
      box-shadow: 0 20px 25px -5px rgba(234, 88, 12, 0.12), 0 8px 10px -6px rgba(234, 88, 12, 0.08);
      transform: translateY(-2px);
    }
    .nav-blur {
      backdrop-filter: blur(12px);
      background-color: rgba(255, 255, 255, 0.95);
    }