/* roulang page: index */
:root {
      --primary: #0B0E14;
      --secondary: #161B26;
      --accent-green: #00F298;
      --accent-violet: #6C5CE7;
      --surface-light: #F4F6FB;
      --text-dark: #0F172A;
      --text-light: #F8FAFC;
    }
    body {
      font-family: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;
      line-height: 1.75;
      background-color: var(--primary);
      color: var(--text-light);
    }
    .neon-border {
      border: 1px solid rgba(0, 242, 152, 0.25);
      transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }
    .neon-border:hover {
      border-color: rgba(0, 242, 152, 0.8);
      box-shadow: 0 0 25px rgba(0, 242, 152, 0.2);
      transform: translateY(-3px);
    }
    .violet-border {
      border: 1px solid rgba(108, 92, 231, 0.3);
      transition: all 0.3s ease;
    }
    .violet-border:hover {
      border-color: rgba(108, 92, 231, 0.8);
      box-shadow: 0 0 25px rgba(108, 92, 231, 0.25);
      transform: translateY(-3px);
    }
    .hero-glow {
      background: radial-gradient(circle at 50% 30%, rgba(108, 92, 231, 0.22) 0%, rgba(11, 14, 20, 0) 70%);
    }