/* 正常状态：黑底白字 */
  .custom-inquiry-btn {
    background-color: #000 !important;
    color: #fff !important;
    border: 1px solid #000 !important;
    transition: all 0.3s ease !important;
    cursor: pointer;
  }
  
  /* 滑过状态：白底黑字 */
  .custom-inquiry-btn:hover {
    background-color: #fff !important;
    color: #000 !important;
    border: 1px solid #000 !important;
  }