/* 遮罩层整体 */
#age-warning {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0,0,0,0.8);
  color: #fff;
  
  display: none; 
  
  align-items: center;
  justify-content: center;
  z-index: 9999;
}

/* 提示框 */
#age-warning .warning-box {
  background: #222;
  padding: 20px;
  border-radius: 8px;
  text-align: center;
  max-width: 400px;
  box-shadow: 0 0 10px rgba(0,0,0,0.5);
}

/* 标题 */
#age-warning h2 {
  margin: 0 0 10px;
  font-size: 20px;
}

/* 文本 */
#age-warning p {
  margin: 0 0 15px;
  font-size: 16px;
  line-height: 1.5;
}

/* 按钮通用样式 */
#age-warning button {
  margin: 10px;
  padding: 8px 16px;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  font-size: 16px;
}

/* 确认按钮 */
#enter-site {
  background: #4caf50;
  color: #fff;
}

/* 离开按钮 */
#leave-site {
  background: #f44336;
  color: #fff;
}