@media screen and (min-width:751px) {
    * {
        margin: 0;
        padding: 0;
        border: 0;
    }
    div{
        margin: 0;
        padding: 0;
        border: 0;
       
    }
    .w {
        width: 1200px;
        margin: 0 auto;
    }
    ul li{
        list-style: none;
    }
    .ck-slide {
        width: 100%;
        min-width: 1200px;
        height: 474px;
        position: relative;
    
    }
    .imageclass {
        width: 100%;
        height: 474px;
        position: relative;
        object-fit: cover;
    }
    header {
        width: 100%;
        height: 474px;
        min-width: 1200px;
        /* background-image: url("../aiimage/videophone/bannerbg.png"); */
        background-size: 100% 100%;
        position: relative;
    }
    .top {
        position: absolute;
        top: 119px;
        /* left: 360px; */
        width: 533px;
        text-align: left;
    }
    .title_one{
        font-family: Alibaba PuHuiTi;
        font-weight: 500;
        font-size: 36px;
        color: #FFFFFF;
    }
    .xian_one{
        width: 100px;
        height: 4px;
        background: #F5F2F6;
        margin: 34px 0 ;
    }
    .content{
        font-family: Alibaba PuHuiTi;
        font-weight: 400;
        font-size: 16px;
        color: #FFFFFF;
        line-height: 30px;
    }
    .section_one{
        width: 100%;
        min-width: 1200px;
    }
    .section_one_content{
        display: flex;
        justify-content: space-between;
        padding: 70px 0;
        box-sizing: border-box;
    }
    .section_one_content_left{
        width: 580px;
        height: 268px;
        background: #FFFFFF;
        box-shadow: 0px 0px 17px 1px rgba(0,0,0,0.09);
        border-radius: 10px;
    }
    .section_one_content_left_top{
        width: 580px;
        height: 70px;
        background: linear-gradient(86deg,  #29C7FB,#3D93FD);
        border-radius: 10px 10px 0px 0px;
        display: flex;
        align-items: center;
        justify-content: space-between;
        padding: 0 24px;
        box-sizing: border-box;
    }
    .sectiontitle{
        font-family: Alibaba PuHuiTi;
        font-weight: 500;
        font-size: 24px;
        color: #FFFFFF;
    }
    .sectioncontent{
        display: flex;
        margin-bottom: 20px;
    }
    .sectioncontent_bottom{
        height: 198px;
        padding: 24px 17px 27px 24px;
        box-sizing: border-box;
     
    }
    .bottom_one li{
        align-items: center;
    }
    .content_two{
        font-family: Alibaba PuHuiTi;
        font-weight: 400;
        font-size: 16px;
        color: #666666;
        margin-left: 7px;
        line-height: 18px;
    }
    .bluephone{
        width: 52px;
        height: 52px;
    }
    .rightimg{
        width: 22px;
        height: 22px;
    }
    .section_two{
        width: 100%;
        min-width: 1200px;
        height: 1729px;
        background-image: url("../aiimage/videophone/videbg.png");
        background-size: 100% 100%;
    }
    .neititle{
        font-family: Alibaba PuHuiTi;
        font-weight: 400;
        font-size: 28px;
        color: #333333;
        padding: 70px 0 23px 0;
        box-sizing: border-box;
        display: flex;
        align-items: center;
        justify-content: center;
    }
    .section_twocontent{
        padding: 70px 0 0 0;
        box-sizing: border-box;

    }
    .start_left_img{
        width: 14px;height: 14px;margin-right: 8px;
    }
    .start_right_img{
        width: 14px;height: 14px;margin-left: 8px;
    }
    .slide{
        display: flex;
        justify-content: space-between;
    }
    .neileft h2{
        font-family: Alibaba PuHuiTi;
        font-weight: 400;
        font-size: 22px;
        color: #10225A;
        margin-top: 143px;
    }
    .neileft p{
        font-family: Alibaba PuHuiTi;
        font-weight: 400;
        font-size: 16px;
        color: #333333;
    }
    .heixian{
        width: 40px;
        height: 4px;
        background: #10225A;
        margin-top: 19px;
    }
    .longxian{
        width: 500px;
        height: 1px;
        background: #ECEAEA;
        margin-bottom: 29px;
    }
    .left_right{
        display: flex;
        flex-direction: column;
        align-items: flex-end;
    }
    .section_three{
        width: 100%;
        height: 697px;
        min-width: 1200px;
        background: #2b2e32;
        background-image: url("../aiimage/videophone/bg.png");
        background-size: 100% 100%;
    }
    .section_three_bottom_left{
        display: flex;
        flex-wrap: wrap;
    }
    .section_three_bottom_left li{
        width: 219px;
        height: 206px;
        background: #445159;
        border-radius: 10px;
        display: flex;
        align-items: center;
        justify-content: space-between;
        flex-direction: column;
        padding: 31px 0 31px 0;
        box-sizing: border-box;
        margin:0 30px 30px 0;
    }
    .section_three_bottom_left li:nth-child(3n){
        margin-right: 0;
    }
    .section_three_bottom_left li:nth-child(1){
        padding: 34px 0 31px 0;
        box-sizing: border-box;
    }
    .videoimg{
        margin-top: 37px;
    }
    .videfour{
        width: 340px;
        height: 432px;
    }
    .section_three_bottom_left li p{
        font-family: Alibaba PuHuiTi;
        font-weight: 400;
        font-size: 18px;
        color: #FFFFFF;
        margin-top: 16px;
    }
    .neititlethree{
        font-family: Alibaba PuHuiTi;
        font-weight: 400;
        font-size: 28px;
        color: #FFFFFF;
        height: 26px;
    }
    .contentthree{
        text-align: center;
    }
    .section_three_bottom{
        display: flex;
        justify-content: space-between;
        margin-top: 50px;
    }
    .section_three_bottom_left{
        width: 717px;
    }
    .particularbox {
        min-width: 1200px;
        background: #F6F8FB;
        height: 334px;
        padding: 70px 0;
        box-sizing: border-box;

        
    }
    .particular {
       

    }
    .partstar {
        display: flex;
        justify-content: center;
        align-items: center;
        line-height: 26px;
   
    }
    .partstar h1 {
        font-family: Alibaba PuHuiTi;
        font-weight: 400;
        font-size: 28px;
        color: #333333;
    }

    .partstar img {
        margin: 0 8px;
    }
    .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);
    }

  

    .particular ul {
        display: flex;
        margin-top: 40px;
    }
    .particular ul li:nth-child(-n+3){
                margin-right: 20px;
        }
        .partbox {
            width: 285px;
            height: 116px;
            background: #FFFFFF;
            box-shadow: 0px 4px 9px 0px rgba(0, 0, 0, 0.05);
            border-radius: 10px;

           
        }
    .part-top {
        height: 50px;
        border-radius: 10px 10px 0px 0px;
        display: flex;
        align-items: center;
        justify-content: space-between;
        padding: 9px 17px 8px 19px;
        box-sizing: border-box;
    }
    .part-top  h6 {
        font-family: Alibaba PuHuiTi;
        font-weight: 400;
        font-size: 24px;
        color: #FFFFFF;
        height: 23px;
        line-height: 23px;
    }

  .heng {
        width: 25px;
        height: 3px;
        background: #FFFFFF;
        margin-top: 5px;
    }
  .easyimg{
        width: 34px;
        height: 33px;
    }
 .usreimg{
        width: 31px;
        height: 34px;
    }
.optionimg{
        width: 29px;
        height: 34px;
    }
    .toolimg{
        width: 35px;
        height: 32px;
    }
   .part-bot {
        display: flex;
        align-items: flex-start;
        padding-left: 19px;
        /* padding-right: 25px; */
        box-sizing: border-box;
        margin-top: 20px;

       
    }
    .part-bot img {
        width: 17px;
        height: 13px;
        margin-right: 7px;
        margin-top: 5px;
    }
   
    .part-bot p {
        font-family: Alibaba PuHuiTi;
        font-weight: 400;
        font-size: 16px;
        color: #333333;
    }
    .minivideoimgtwo{
        display: none;
    }
    .videoimgtwo{
        display: block;
    }
    .cardtitle{
        font-family: Alibaba PuHuiTi;
        font-weight: 400;
        font-size: 28px;
        color: #333333;
        text-align: center;
        display: flex;
        align-items: center;
        justify-content: center;
    }
}