/* roulang page: index */
:root {
      --bg-main: #070B19;
      --bg-darker: #040711;
      --accent-cyan: #00F2FE;
      --accent-blue: #4FACFE;
      --glass-card: rgba(255, 255, 255, 0.05);
      --glass-border: rgba(255, 255, 255, 0.12);
      --text-white: #FFFFFF;
      --text-sub: #CBD5E1;
      --text-muted: #94A3B8;
      --radius-lg: 16px;
      --radius-md: 12px;
    }
    body {
      background-color: var(--bg-main);
      color: var(--text-white);
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      overflow-x: hidden;
      margin: 0;
      padding: 0;
      box-sizing: border-box;
    }
    .glass-box {
      background: var(--glass-card);
      backdrop-filter: blur(16px);
      -webkit-backdrop-filter: blur(16px);
      border: 1px solid var(--glass-border);
      border-radius: var(--radius-lg);
      transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }
    .glass-box:hover {
      border-color: rgba(0, 242, 254, 0.4);
      background: rgba(255, 255, 255, 0.07);
      box-shadow: 0 10px 30px -10px rgba(0, 242, 254, 0.2);
    }
    .glow-btn-primary {
      background: linear-gradient(135deg, #00F2FE 0%, #4FACFE 100%);
      color: #040711;
      font-weight: 700;
      border-radius: 9999px;
      box-shadow: 0 0 25px rgba(0, 242, 254, 0.35);
      transition: all 0.3s ease;
    }
    .glow-btn-primary:hover {
      box-shadow: 0 0 35px rgba(0, 242, 254, 0.6);
      transform: translateY(-2px);
    }
    .glow-btn-secondary {
      background: rgba(255, 255, 255, 0.08);
      color: #FFFFFF;
      border: 1px solid rgba(255, 255, 255, 0.2);
      border-radius: 9999px;
      transition: all 0.3s ease;
    }
    .glow-btn-secondary:hover {
      background: rgba(255, 255, 255, 0.15);
      border-color: var(--accent-cyan);
      transform: translateY(-2px);
    }
    .glow-text-cyan {
      background: linear-gradient(135deg, #00F2FE 0%, #4FACFE 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }