/* 欢迎页面按钮容器 */
#welcome-buttons {
  display: flex;
  flex-direction: column; /* 垂直排列按钮 */
  justify-content: center;
  align-items: center;
  height: 100vh; /* 居中显示 */
  background-color: #f5f5f5;
}

/* 按钮样式 */
#welcome-buttons button {
  margin: 10px;
  padding: 15px 30px;
  font-size: 18px;
  border: none;
  background-color: #4CAF50;
  color: white;
  border-radius: 5px;
  cursor: pointer;
}

#welcome-buttons button:disabled {
  background-color: #d3d3d3; /* 灰色禁用按钮 */
  cursor: not-allowed;
}