/* roulang page: index */
:root {
      --bg-dark: #0B0E14;
      --card-bg: #141923;
      --accent-green: #00F5A0;
      --accent-purple: #7928CA;
    }
    body {
      background-color: var(--bg-dark);
      color: #FFFFFF;
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Microsoft YaHei", sans-serif;
    }
    .text-gradient {
      background: linear-gradient(135deg, #00F5A0 0%, #00D8F6 50%, #7928CA 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    .cyber-border {
      border: 1px solid rgba(255, 255, 255, 0.08);
      transition: all 0.3s ease;
    }
    .cyber-border:hover {
      border-color: rgba(0, 245, 160, 0.4);
      box-shadow: 0 8px 30px rgba(0, 245, 160, 0.12);
    }
    .code-mask {
      background: radial-gradient(circle at top right, rgba(121, 40, 202, 0.15), transparent 70%),
                  radial-gradient(circle at bottom left, rgba(0, 245, 160, 0.1), transparent 70%);
    }