@media (min-width: 0px) and (max-width:750px) {
    * {
        margin: 0;
        padding: 0;
        border: 0;
    }
    div{
        margin: 0;
        padding: 0;
        border: 0;
       
    }
    ul li{
        list-style: none;
    }
    .w {
        /* width: 100%; */
        margin: 0 auto;
    }
    .imageclass{
        display: none;
    }
    header {
        /* width: 100%; */
        height:4.6667rem;
        /* min-width: 100%; */
        /* background-image: url("../aiimage/FaceRecognition/minibanner.png"); */
        background-size: 100% 100%;
        position: relative;
    }
    .phoneimageclass{
        width: 100%;
        height: 4.6667rem;
    }
    .phonew{
        position: absolute;
        top:.6933rem;
        left: .6667rem;
        width: 5.0267rem;
       
    }
    .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;
    }
    .section_one{
        width: 100%;
        /* height: 12.24rem; */
        padding: .4rem 0;
        box-sizing: border-box;
    }
    .section_one_content{
        padding: 0 .4rem;
        box-sizing: border-box;
    }
    .section_one_content_left{
        width: 100%;
        height: 5.7067rem;
        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: .3467rem;
        color: #666666;
        margin-top: -0.0267rem;
    }
    .closeimg{
        width: .4133rem;
        height: .4133rem;
        margin-right: .12rem;
    }
    .sectioncontent_bottom{
        height: 4.7467rem;
        padding: .4rem .32rem .32rem 0.32rem;
        box-sizing: border-box;
        display: flex;
        flex-direction: column;
        justify-content: space-between;
      
    }
   
    .sectioncontent{
        display: flex;
    }
   
    .section_one_content_left{
        margin-bottom: .32rem;

    }
    .section_one_content_left:last-child{
        margin-bottom: 0;
    }
    .section_two{
        width: 100%;
        height: 11rem;
        background: #F6F8FB;
        
    }
    .section_two_content{
        padding: .5rem .4rem .6533rem .4rem;
        box-sizing: border-box;
    }
    .neititle{
        font-family: PingFang SC;
        font-weight: 500;
        font-size: .4267rem;
        color: #333333;
        box-sizing: border-box;
        display: flex;
        align-items: center;
        justify-content: center;
    }
    .start_left_img{
        width: .2667rem;height: .2667rem;margin-right: .1067rem;
    }
    .start_right_img{
        width: .2667rem;height: .2667rem;margin-left: .1067rem;
    }
    .section_two_content p{
        font-family: PingFang SC;
        font-weight: 400;
        font-size: .3467rem;
        color: #666666;
        text-align: center;
        margin-top: .3rem;
        margin-bottom: .4rem;
    }
    .equipment_img{
        display: none;
    }
    .equipment_miniimg{
        width: 9.2133rem;
        height: 6.9733rem;
        margin: 0 auto;
    }
    .section_three{
        width: 100%;
        /* height: 13.4667rem; */
        background: #2b2e32;
        background-image: url("../aiimage/FaceRecognition/minibgtwo.png");
        background-size: 100% 100%;
        padding: .6533rem .4rem .6667rem .4rem;
        box-sizing: border-box;
    }
    .neititleone{
        color: #FFFFFF;
    }
    .section_three_left li {
        margin-bottom: .35rem;
    }
    .section_three_left li p{
        margin-top: .0667rem;
    }
    .section_three_left li:last-child {
        margin-bottom: 0;
    }
    .section_three_left li h2{
        font-family: PingFang SC;
        font-weight: 500;
        font-size: .4rem;
        color: #FFFFFF;
        display: flex;
        align-items: center;
    }
    .section_three_left li h2 img{
        width: .44rem;
        height: .4rem;
        margin-right: .1333rem;
        
    }
    .section_three_left li p{
        font-family: PingFang SC;
        font-weight: 400;
        font-size: .3467rem;
        color: #FFFFFF;
        margin-left: .5733rem;
    }
    .device_img{
        width: 7.3467rem;
        height: 3.0667rem;
        margin: .8rem auto .5rem;
    }
    .section_three_box{
    
    }
    .section_three_content{
        display: flex;
        flex-direction: column-reverse;
      
    }
    .section_four{
        width: 100%;
        /* height: 25.04rem; */
        background-image: url("../aiimage/FaceRecognition/minibg.png");
        background-size: 100% 100%;
        padding: .6667rem .4rem;
        box-sizing: border-box;
    }
    .section_four_top ul li h2{
        font-family: PingFang SC;
        font-weight: 500;
        font-size: .4rem;
        color: #10225A;
        display: flex;
        align-items: center;
       
    }
    .section_four_top ul li h2 img{
        width: .3467rem;
        height: .3467rem;
        margin-right: .1333rem;
    }
    .section_four_top ul li p{
        font-family: PingFang SC;
        font-weight: 400;
        font-size: .3467rem;
        color: #666666;
        margin-left: .48rem;
    }
 
    .computer_img{
        width: 8.36rem;
        height: 4.92rem;
        margin: .6rem auto .6rem;
    }
    .phone_img{
        width: 7.8rem;
        /* height: 4.92rem; */
        margin: 1.0667rem auto .6667rem;
    }
    .top_resvie{
        display: flex;
        flex-direction: column-reverse;
    }
    .section_four_top ul li{
        margin-bottom: .4rem;
    }
    .section_four_top ul li:last-child{
        margin-bottom: 0;
    }
    .section_four_top ul li p{
        margin-top: .0933rem;
    }
    .section_four_bottom{
        display: flex;
        flex-direction: column;
    }
    nav{
        padding: 0 0.4rem;
        box-sizing: border-box;
    }
}