@media (min-width: 0px) and (max-width:750px) {
    .imageclass{
        display: none;
    }
    * {
        margin: 0;
        padding: 0;
        border: 0;
    }
    div{
        margin: 0;
        padding: 0;
        border: 0;
    
    }
    header {
        width: 100%;
        height: 4.6667rem;
        min-width: 100%;
        /* background-image: url("../aiimage/Education/minibannger.png");
        background-size: 100% 100%; */
        position: relative;
    }
    .phoneimageclass{
        width: 100%;
        height: 4.6667rem;
    }
    ul li {
        list-style: none;
    }

    .w{
        /* width: 100%; */
    }
    .phonew{
        position: absolute;
       top:.6933rem;
        left: .6667rem;
        width:5.12rem;
    }
    .title_one{
        font-family: Alibaba PuHuiTi;
        font-weight: 500;
        font-size: .48rem;
        color: #FFFFFF;
    }
    .xian_one{
        width: 1.3333rem;
        height: .0533rem;
        background: #F5F2F6;
        margin: .3rem 0 0.4rem;

    }
    .content{
        font-family: Alibaba PuHuiTi;
        font-weight: 400;
        font-size: .2133rem;
        color: #FFFFFF;
        line-height: .4rem;
    }
    .neirongbigbox{
        width: 100%;
        height: 6.4267rem;
        background: #F6F8FB;
        padding: .4rem;
        box-sizing: border-box;
    }
    .neirongbox{
        display: flex;
        flex-wrap: wrap;
        justify-content: space-between;
    }
    .neirongbox li{
        width: 4.4667rem;
        height: 2.68rem;
        background: #FFFFFF;
        box-shadow: 0rem .0933rem .12rem 0rem rgba(7,64,102,0.08);
        border-radius: .1333rem;
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        margin-bottom: .2667rem;
    }
    .neirongbox li img{
        margin-left: -0.1333rem;
    }
    .box_title{
        font-family: PingFang SC;
        font-weight: 500;
        font-size: .4rem;
        color: #333333;
    }
    .box_one{
        font-family: PingFang SC;
        font-weight: 400;
        font-size: .2933rem;
        color: #999999;
    }
    .section_one{
        width: 100%;
        /* height: 10.9733rem; */
        padding: .6667rem 0;
        box-sizing: border-box;
    }
    .section_one_content{
        padding: 0 .4rem;
        box-sizing: border-box;
    }
    .section_one_content_left{
        width: 100%;
        height: 4.5rem;
        background: #FFFFFF;
        box-shadow: 0rem 0rem .2267rem .0133rem rgba(0,0,0,0.09);
        border-radius: .2667rem;
    }
    .section_one_content_left_top{
        width: 100%;
        height: .96rem;
        background: linear-gradient(86deg,  #29C7FB,#3D93FD);
        border-radius: .2667rem .2667rem 0rem 0rem;
        display: flex;
        align-items: center;
        justify-content: space-between;
        padding: 0 .32rem;
        box-sizing: border-box;
    }
    .sectiontitle{
        font-family: PingFang SC;
        font-weight: 500;
        font-size: .4rem;
        color: #FFFFFF;
    }
    .iconimg{
        width: .72rem;
        height: .72rem;
    }
    .content_two{
        font-family: PingFang SC;
        font-weight: 400;
        font-size: .33rem;
        color: #666666;
        margin-top: -0.0267rem;
    }
    .closeimg{
        width: .4133rem;
        height: .4133rem;
        margin-right: .12rem;
    }
    .sectioncontent_bottom{
        padding: .4rem .32rem .32rem 0.4rem;
        box-sizing: border-box;
        display: flex;
        flex-direction: column;
        /* justify-content: space-between; */
      
    }
    .sectioncontent{
        display: flex;
        margin-bottom: .3rem;
        font-family: PingFang SC;
        font-weight: 400;
        font-size: .3467rem;
    }
  
    .section_one_content_left{
        margin-bottom: .32rem;

    }
    .left_two{
        height: 5rem;
        margin-bottom: 0 !important;
       }
    .eduction_two{
        display: none;
    }
    .section_two_content{
        width: 100%;
        height: 17.48rem;
        background: #F6F8FB;
        padding: .5333rem .4rem;
        box-sizing: border-box;
    }
    .minieduction_two{
     width: 9.2rem;
     height: 16.4133rem;
     margin: 0 auto;
    }
    .section_four{
        width: 100%;
        height: 15.2267rem;
        background-color: #fff;
        padding: .6667rem .4rem;
        box-sizing: border-box;
    }
    .start_left_img{
        width: .2667rem;height: .2667rem;margin-right: .1067rem;
    }
    .start_right_img{
        width: .2667rem;height: .2667rem;margin-left: .1067rem;
    }
  
    .particularbox{
        padding: .6667rem 0;
        box-sizing: border-box;
        background: #Ffff;
    }
    .partstar {
        display: flex;
        justify-content: center;
        align-items: center;
        
        margin-bottom: .4rem;
    }
    .partstar h1{
        font-family: PingFang SC;
        font-weight: 500;
        font-size: .4267rem;
        color: #333333;
    }
    .partbox{
        width: 9.2rem;
        background: #FFFFFF;
        box-shadow: 0rem .08rem .08rem 0rem rgba(7,64,102,0.09);
        border-radius: .2667rem;
        margin:0 auto .4rem;
        padding-bottom: .44rem;
    }
    .partbox:last-child{
        margin-bottom: 0;
    }
    .blue {
        background: linear-gradient(-86deg, #3D93FD, #29C7FB);
    }

    .orange {
        background: linear-gradient(90deg, #FFB966, #FD7E31);
    }

    .green {
        background: linear-gradient(-90deg, #21E179, #2EF398);
    }

    .yellow {
        background: linear-gradient(-90deg, #FFA60A, #F7C92A);
    }
    .part-top {
        height: 1.04rem;
        border-radius: .2667rem .2667rem 0 0;
        display: flex;
        align-items: center;
        justify-content: space-between;
        padding: 0 .3333rem;
        box-sizing: border-box;
    }
    .heng{
        width: .4267rem;
        height: .04rem;
        background: #FFFFFF;
    }
    .easyimg{
        width: .6133rem;
        height: .72rem;
    }
    .left h6{
        font-family: PingFang SC;
        font-weight: 500;
        font-size: .4rem;
        color: #FFFFFF;
    }
    .part-bot{
        display: flex;
        align-items: center;
        padding-left:.32rem;
        padding-right: .3333rem;
        box-sizing: border-box;
        margin-top: .3067rem;
    }
    .part-bot p {
        font-family: PingFang SC;
        font-weight: 400;
        font-size: .3467rem;
        color: #333333;
    }
    .part-bot img{
        width: .3867rem;
        height: .3067rem;
        margin-right: .1333rem;
    }
    .optionimg{
        width: .8133rem;
        height: .7333rem;
    }
    .toolimg{
        width: .8rem;
        height: .72rem;
    }
    .usreimg{
       width: .6667rem;
       height: .75rem;
    }
    .cardtitle{
        font-family: PingFang SC;
        font-weight: 500;
        font-size: .4267rem;
        color: #333333;
        text-align: center;
        display: flex;
        align-items: center;
        justify-content: center;
        height: .3467rem;
    }
    .section_four{
        width: 100%;
        height: 16.3067rem;
        background: #F6F8FB;
        padding: .6667rem .4rem ;
        box-sizing: border-box;
    }
    .section_four ul{
        margin-top: .3867rem;
    }
    .section_four ul li{
        width: 9.2rem;
        height: 4.4533rem;
        border-radius: .2667rem;
        position: relative;
        margin-bottom: .4rem;
    }
    .four_bottom{
        width: 9.2rem;
        height: 1.92rem;
        background: #FFFFFF;
        border-radius: .2667rem;
        position: absolute;
        left: 0;
        bottom: 0;
        padding: .3333rem 0 0 .2533rem;
        box-sizing: border-box;
    }
    .four_bottom_top{
        font-family: PingFang SC;
        font-weight: 500;
        font-size: .4rem;
        color: #333333;
        display: flex;
        align-items: center;
    }
    .four_bottom p{
        font-family: PingFang SC;
        font-weight: 400;
        font-size: .3467rem;
        color: #999999;
        margin-left: .1rem;
    }
    .four_bottom_top img{
        margin-right: .08rem;
    }
  
    .section_four_box ul li:first-child{
        background-image: url("../aiimage/Education/minieduciton_three.png");
        background-size: 100% 100%;
    }
    .section_four_box ul li:nth-child(2){
        background-image: url("../aiimage/Education/minieduciton_four.png");
        background-size: 100% 100%;
    }
    .section_four_box ul li:last-child{
        background-image: url("../aiimage/Education/minieduciton_five.png");
        background-size: 100% 100%;
    }
    .neirongbox li img{
        width: 1.04rem;
        height: .9733rem;
    }
    .four_bottom_top img{
        width: .6133rem;
        height: .6rem;
    }
    nav{
        padding: 0 0.4rem;
        box-sizing: border-box;
    }
}