@media only screen and (max-width: 760px) {
    .header{
        height: 50px;
    }
    .header .logo img{
        height: 50px;
        padding-top: 0;
    }
    .header .nav{
        display: none;
    }
    .fullSlide {
        width: 100%;
        height: 200px;
    }
    .fullSlide .bd li {
        width: 500px;
        height: 200px;
    }
    .fullSlide .bd li a {
        display: block;
        height: 200px
    }

    .youshi{
        min-height: 100px;
        padding: 0;
        background: #fff;
    }
    .youshi ul li{
        height: 200px;
        float: none;
    }
    .youshi ul li:nth-child(2){
        margin-left: 0;
    }
    .youshi ul li:nth-child(3){
        margin-left: 0;
    }
}