@media only screen and (min-width: 320px){
    .introductionSummit{
        display:flex;
        min-height:300px;  
    }
    .introductionSummit .leftBox{
        flex:1;
        position: relative;
    }
    .introductionSummit .leftBox .zu14{
        position:absolute;
        right:20px;
        top:0;
        height:200px;
    }
    .introductionSummit .leftBox .contentSummit{
        position:relative;
        z-index:100;
        width:95%;
        margin:0 auto;
    }
    .introductionSummit .leftBox .contentSummit>h3{
        margin-top:40px;
    }
    .introductionSummit .leftBox .contentSummit>h3>img{
        height:60px;
    }
    .introductionSummit .leftBox .contentSummit p{
        font-size:14px;
        width:95%;
        margin:40px auto;
        line-height:30px;
        display:flex;
    }
    .introductionSummit .leftBox .contentSummit>p>img{
        width:95%;
        display: block;
        margin:0 auto;
    }
}
@media only screen and (min-width: 768px){
    .introductionSummit{
        display:flex;
        min-height:300px;  
    }
    .introductionSummit .leftBox{
        flex:1;
        position: relative;
    }
    .introductionSummit .leftBox .zu14{
        position:absolute;
        right:20px;
        top:0;
        height:200px;
    }
    .introductionSummit .leftBox .contentSummit{
        position:relative;
        z-index:100;
        width:90%;
        margin:0 auto;
    }
    .introductionSummit .leftBox .contentSummit>h3{
        margin-top:40px;
    }
    .introductionSummit .leftBox .contentSummit>h3>img{
        height:100px;
    }
    .introductionSummit .leftBox .contentSummit p{
        font-size:16px;
        width:95%;
        margin:40px auto;
        line-height:40px;
        display:flex;
    }
    .introductionSummit .leftBox .contentSummit>p>img{
        width:95%;
        display: block;
        margin:0 auto;
    }
}
@media only screen and (min-width: 1024px){
    .introductionSummit{
        display:flex;
        min-height:300px;  
    }
    .introductionSummit .leftBox{
        flex:1;
        position: relative;
    }
    .introductionSummit .leftBox .zu14{
        position:absolute;
        right:20px;
        top:0;
        height:700px;
    }
    .introductionSummit .leftBox .contentSummit{
        position:relative;
        z-index:100;
        width:80%;
        margin:0 auto;
    }
    .introductionSummit .leftBox .contentSummit>h3{
        margin-top:120px;
    }
    .introductionSummit .leftBox .contentSummit>h3>img{
        height:120px;
    }
    .introductionSummit .leftBox .contentSummit p{
        font-size:24px;
        width:95%;
        margin:60px auto;
        line-height:45px;
        display:flex;
    }
    .introductionSummit .leftBox .contentSummit>p>img{
        width:90%;
        display: block;
        margin:0 auto;
    }
}