/* roulang page: index */
:root {
      --primary: #1e3a8a;
      --primary-hover: #2563eb;
      --secondary: #0284c7;
      --bg-body: #f8fafc;
      --surface: #ffffff;
      --text-main: #0f172a;
      --text-muted: #64748b;
      --border-color: #e2e8f0;
      --shadow-soft: 0 4px 20px -2px rgba(15, 23, 42, 0.05);
      --shadow-hover: 0 16px 32px -4px rgba(30, 58, 138, 0.12);
    }
    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Microsoft YaHei", sans-serif;
      background-color: var(--bg-body);
      color: var(--text-main);
      overflow-x: hidden;
    }
    .custom-container {
      width: 100%;
      max-width: 1240px;
      margin-left: auto;
      margin-right: auto;
      padding-left: 1.25rem;
      padding-right: 1.25rem;
    }
    .card-hover-effect {
      transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
    }
    .card-hover-effect:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-hover);
      border-color: #bfdbfe;
    }
    .badge-primary {
      background: linear-gradient(135deg, rgba(37, 99, 235, 0.1) 0%, rgba(2, 132, 199, 0.15) 100%);
      color: #1e40af;
      border: 1px solid rgba(191, 219, 254, 0.8);
    }