/* roulang page: index */
:root {
      --field-green: #0A5C36;
      --volt-neon: #D4F82C;
      --pitch-dark: #11161B;
      --snow-white: #F8FAFC;
    }
    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      background-color: var(--snow-white);
      color: #334155;
      line-height: 1.7;
    }
    .neon-btn {
      background-color: var(--volt-neon);
      color: #0A2912;
      transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    }
    .neon-btn:hover {
      transform: translateY(-2px);
      box-shadow: 0 10px 25px -5px rgba(212, 248, 44, 0.45);
    }
    .glass-card {
      background: rgba(255, 255, 255, 0.85);
      backdrop-filter: blur(12px);
      border: 1px solid rgba(226, 232, 240, 0.8);
    }
    .dark-glass {
      background: rgba(17, 22, 27, 0.85);
      backdrop-filter: blur(14px);
      border: 1px solid rgba(255, 255, 255, 0.08);
    }
    details summary::-webkit-details-marker {
      display: none;
    }