/* roulang page: index */
:root {
      --primary: #1e40af;
      --primary-hover: #1d4ed8;
      --accent: #0284c7;
      --bg-page: #f8fafc;
      --surface: #ffffff;
      --text-main: #0f172a;
      --text-muted: #475569;
      --border-light: #e2e8f0;
      --shadow-soft: 0 4px 20px -2px rgba(15, 23, 42, 0.05);
      --shadow-hover: 0 20px 30px -10px rgba(30, 64, 175, 0.12);
    }

    body {
      background-color: var(--bg-page);
      color: var(--text-main);
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      overflow-x: hidden;
    }

    .custom-container {
      max-width: 1280px;
      margin-left: auto;
      margin-right: auto;
      padding-left: 1.25rem;
      padding-right: 1.25rem;
    }

    .card-hover {
      transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    }
    .card-hover:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-hover);
    }

    .mega-menu {
      opacity: 0;
      visibility: hidden;
      transform: translateY(8px);
      transition: all 0.2s ease-in-out;
    }
    .group-mega:hover .mega-menu {
      opacity: 1;
      visibility: visible;
      transform: translateY(0);
    }

    .hero-mesh {
      background-image: linear-gradient(135deg, rgba(239, 246, 255, 0.85) 0%, rgba(248, 250, 252, 0.95) 100%), url('/assets/images/281c02e8eb0b50d0.png');
      background-size: cover;
      background-position: center;
    }

    .cta-mesh {
      background-image: radial-gradient(circle at top right, #1e40af 0%, #0f172a 80%);
    }