@charset "utf-8";

@media (max-width: 1300px) { /*小于1300时*/
  .productCourseware .submenu_list{
    width: 100%;
    text-align: center;
    margin-top: 15px;
    margin-bottom: 15px;
    padding-left: 10px;
  }

}



@media (max-width: 1000px) { /*小于1000时*/
  .productCourseware .submenu_btn{
    font-size: 16px;
    width: 100px;
    margin-right: 10px;
    margin-bottom: 10px;
  }
  .productCourseware_container img{
    width: 180px;
    height: auto;
  }

  .productIntroduce_img img{
    width: 220px;
    height: auto;
    margin-right: 40px;
  }

  .productIntroduce_content p{
    font-size: 16px;
  }

}



@media (max-width: 767px) { /*小于767时*/
  .productIntroduce_img{
    text-align: center;
  }

  .productIntroduce_img img{
    width: 210px;
    height: auto;
    margin-right: 0;
    float: none;
  }

  .productIntroduce_content img{
    margin-top: 5px;
    margin-left: 0;
    width: 180px;
  }

  .productIntroduce_content p{
    font-size: 14px;
    line-height: 25px;
  }

  .productCourseware_container img{
    width: 160px;
  }

  .submenu_list .submenu_btn:last-child{
    margin-right: 10px;
  }
  .productIntroduce{
    margin-bottom: 35px;
  }

}