/* roulang page: index */
:root {
      --bg-main: #060B17;
      --bg-panel: rgba(15, 23, 42, 0.72);
      --border-glow: rgba(255, 255, 255, 0.08);
      --accent-cyan: #00D2FF;
      --accent-purple: #6366F1;
    }
    body {
      background-color: var(--bg-main);
      color: #F8FAFC;
      font-family: 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
      overflow-x: hidden;
    }
    .glass-card {
      background: var(--bg-panel);
      backdrop-filter: blur(16px);
      -webkit-backdrop-filter: blur(16px);
      border: 1px solid var(--border-glow);
      box-shadow: 0 10px 32px 0 rgba(0, 0, 0, 0.45);
    }
    .glass-card:hover {
      border-color: rgba(0, 210, 255, 0.28);
    }
    .glow-btn {
      background: linear-gradient(135deg, #00D2FF 0%, #6366F1 100%);
      box-shadow: 0 0 18px rgba(0, 210, 255, 0.35);
      transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }
    .glow-btn:hover {
      box-shadow: 0 0 30px rgba(0, 210, 255, 0.6);
      transform: translateY(-2px);
    }
    .glow-tag {
      background: rgba(0, 210, 255, 0.12);
      border: 1px solid rgba(0, 210, 255, 0.3);
      color: #00D2FF;
    }
    .text-gradient {
      background: linear-gradient(120deg, #FFFFFF 20%, #00D2FF 80%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    .radial-aura {
      position: absolute;
      width: 600px;
      height: 600px;
      background: radial-gradient(circle, rgba(0, 210, 255, 0.08) 0%, rgba(99, 102, 241, 0.03) 50%, transparent 70%);
      pointer-events: none;
      z-index: 0;
    }