/* roulang page: index */
:root {
      --bg-base: #0D1117;
      --bg-panel: #161B22;
      --border-color: #30363D;
      --accent: #6366F1;
      --cyan: #06B6D4;
      --text-main: #F0F6FC;
      --text-muted: #8B949E;
    }
    html {
      scroll-behavior: smooth;
      background-color: var(--bg-base);
      color: var(--text-main);
    }
    body {
      font-family: 'PingFang SC', 'Microsoft YaHei', system-ui, sans-serif;
      margin: 0;
      padding: 0;
      overflow-x: hidden;
    }
    .custom-scrollbar::-webkit-scrollbar {
      width: 6px;
      height: 6px;
    }
    .custom-scrollbar::-webkit-scrollbar-thumb {
      background: var(--border-color);
      border-radius: 4px;
    }
    .glow-card {
      transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
      border: 1px solid rgba(255, 255, 255, 0.08);
    }
    .glow-card:hover {
      border-color: rgba(6, 182, 212, 0.5);
      box-shadow: 0 0 25px rgba(6, 182, 212, 0.15);
      transform: translateY(-4px);
    }
    .badge-tag {
      font-family: 'JetBrains Mono', Consolas, monospace;
      font-size: 0.75rem;
      letter-spacing: 0.05em;
    }