/* roulang page: index */
:root {
      --primary: #0F62FE;
      --primary-hover: #0353E9;
      --accent: #00D2B4;
      --dark-bg: #0B0F19;
      --dark-card: #111827;
      --surface-bg: #F8FAFC;
      --text-main: #111827;
      --text-muted: #4B5563;
      --border-color: #E2E8F0;
    }
    body {
      font-family: system-ui, -apple-system, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      color: var(--text-main);
      background-color: var(--surface-bg);
      line-height: 1.75;
    }
    .custom-shadow {
      box-shadow: 0 4px 20px -2px rgba(15, 23, 42, 0.05), 0 2px 6px -1px rgba(15, 23, 42, 0.03);
    }
    .custom-shadow-hover:hover {
      box-shadow: 0 20px 25px -5px rgba(15, 98, 254, 0.08), 0 10px 10px -5px rgba(15, 98, 254, 0.04);
      transform: translateY(-2px);
    }
    .hero-bg {
      background-image: linear-gradient(to right, rgba(11, 15, 25, 0.95), rgba(15, 23, 42, 0.88)), url('/assets/images/60829089d7c935e0.webp');
      background-size: cover;
      background-position: center;
    }
    .tech-bg {
      background-image: linear-gradient(180deg, #0B0F19 0%, #111827 100%);
    }