.dp_detail {background: url(../images/khd/app_bg.png) no-repeat right top;}

.khd{
    width: 1200px;
    margin: 50px auto;
}
.khd_title{
    margin-bottom: 70px;
}
.app_qh{
    overflow: hidden;
    margin: 80px 0;
}
.app_left{
    float: left;
}
.app_left li {
    width: 215px;
    height: 51px;
    cursor: pointer;
}
.app_left li:first-child{
    margin-bottom: 45px;
}
.app_left .android{
    background: url(../images/khd/app_btn.png) no-repeat left 0;
    transition:none;
}
.app_left .iphone{
    background: url(../images/khd/app_btn.png) no-repeat left -180px;
    transition:none;
}
.app_left .android.on {
    background: url(../images/khd/app_btn.png) no-repeat left -91px;
}
.app_left .iphone.on{
    background: url(../images/khd/app_btn.png) no-repeat left -267px;

}
.app_right{
    float: left;
    margin-left: 50px;
}
.app_right div img {
    width: 130px;
    height: 130px;
}
.app_right div{
    display: none;
    text-align: center;
}
.app_right div.on {
    display: block;
}
.khd_f p {
    line-height: 28px;
}

@media (max-width:768px){
    .dp_detail{
        background:none;
    }
    .khd{
        width:100%;
        margin: 0;
    }
    .app_qh{
        margin: 0 auto;
        width: 215px;
    }
    .khd_title{
        margin-bottom:20px;
    }
    .app_left li:first-child,.app_left li{
        margin-bottom:20px;
    }
}