/* roulang page: index */
:root {
      --bg-main: #060B17;
      --bg-secondary: #0A1124;
      --cyan-glow: #00F0FF;
      --purple-glow: #7928CA;
      --text-main: #FFFFFF;
      --text-muted: #94A3B8;
      --text-sub: #64748B;
      --glass-card: rgba(15, 23, 42, 0.75);
      --glass-border: rgba(0, 240, 255, 0.18);
    }
    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }
    body {
      background-color: var(--bg-main);
      color: var(--text-main);
      font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Segoe UI", sans-serif;
      line-height: 1.6;
      overflow-x: hidden;
    }
    a {
      text-decoration: none;
      color: inherit;
    }
    .neon-border {
      border: 1px solid var(--glass-border);
      backdrop-filter: blur(16px);
      -webkit-backdrop-filter: blur(16px);
      transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }
    .neon-border:hover {
      border-color: rgba(0, 240, 255, 0.5);
      box-shadow: 0 0 25px rgba(0, 240, 255, 0.2);
    }
    .btn-glow {
      background: linear-gradient(135deg, #00F0FF 0%, #7928CA 100%);
      color: #FFFFFF;
      font-weight: 600;
      box-shadow: 0 0 20px rgba(0, 240, 255, 0.35);
      transition: all 0.25s ease-in-out;
    }
    .btn-glow:hover {
      transform: translateY(-2px);
      box-shadow: 0 0 30px rgba(0, 240, 255, 0.6);
    }
    .btn-outline {
      border: 1px solid rgba(0, 240, 255, 0.4);
      background: rgba(11, 19, 43, 0.6);
      transition: all 0.2s ease;
    }
    .btn-outline:hover {
      border-color: #00F0FF;
      background: rgba(0, 240, 255, 0.1);
      color: #00F0FF;
    }
    .text-glow {
      text-shadow: 0 0 15px rgba(0, 240, 255, 0.4);
    }
    /* 滚动条定制 */
    ::-webkit-scrollbar {
      width: 8px;
    }
    ::-webkit-scrollbar-track {
      background: #060B17;
    }
    ::-webkit-scrollbar-thumb {
      background: #1E293B;
      border-radius: 4px;
    }
    ::-webkit-scrollbar-thumb:hover {
      background: #00F0FF;
    }