*{padding:0;margin: 0;}
html {font-size:100px;    font-family: Microsoft YaHei, Arial, Helvetica, sans-serif;
-webkit-text-size-adjust:none;}
body{
    font-size: 12px;
}
.ds_bg{
    width:100%;
}
.flex{
    display: flex;
    display: -webkit-flex;
    align-items:center;
    -webkit-align-items:center;
    justify-content:space-around; 
    flex-direction:row;
    -webkit-flex-direction:row;
    -webkit-justify-content:space-around;
}
.pr{position: relative;}
.pa{position: absolute;}
.ds_1_introduce{
    top: 13.9rem;
    left: 10rem;
    width: 3.57rem;
}
.ds_tit{
    color: #ff5004;
    font-size: .3rem;
    font-weight: bold;
}
.ds_footer_tit{
    font-size: .3rem;
    font-weight: bold;
}
.ds_des{
    font-size: .24rem;
    color: #231815;
    margin-top: .3rem;
    line-height: .36rem;

} 
.ds_footer_des{
     font-size: .24rem;
    margin-top: .3rem;
    line-height: .36rem;
}  
.ds_2_introduce{
    width: 3.6rem;
    top: 22.36rem;
    left: 8.3rem;
}
.ds_3_introduce{
    width: 3.6rem;
    top: 26rem;
    left: 8.3rem;
}
.ds_4_introduce{
    width: 3.6rem;
    top: 29.7rem;
    left: 8.3rem;
}
.ds_5_introduce{
    width: 3.6rem;
    top: 33.5rem;
    left: 8.3rem;
}
.ds_6_introduce{
    width: 3.6rem;
    top: 37.3rem;
    left: 8.3rem;
}
.ds_7_introduce{
    width: 3.56rem;
    top: 40.9rem;
    left: 8.3rem;
}
.ds_footer{width: 11.3rem;bottom:2.45rem;color: #fff; left: 50%;margin-left: -5.56rem;}
.ds_ewm{
    width: 5.82rem;
    height: 5.21rem;
}
.ds_8_introduce{width: 5.5rem;
    padding-top: 3rem;
    vertical-align: bottom;}