body {margin:0; padding:0; font:12px 'Arial',"\5B8B\4F53",san-serif;background:#fff;}
div,dl,dt,dd,ul,ol,li,h1,h2,h3,h4,h5,h6,pre,form,fieldset,input,textarea,blockquote,p{padding:0; margin:0;}
table,td,tr,th{font-size:12px;}
li{list-style-type:none;}
img{vertical-align:top;border:0;}
ol,ul {list-style:none;}
h1,h2,h3,h4,h5,h6 {font-size:12px; font-weight:normal;}
address,cite,code,em,th {font-weight:normal; font-style:normal;}
/*nav*/
.footer{
    position: fixed;
    bottom: 0;
    width: 100%;
    height:.98rem;
    display: -webkit-flex;
    flex-wrap: wrap;
    align-content:flex-start;
    opacity:0.87;
    background:#ffffff;
}
.footer>section{
    flex: 1;
    height: .98rem;
    cursor: pointer;
}
.footer p{
    font-family:PingFangSC-Regular;
    padding-top: .12rem;
    font-size:.2rem;
    color:#9c9c9c;
    letter-spacing:1.59px;
    line-height:.2rem;
    text-align:center;
}
.footer img{
    margin-top: .15rem;
}
.nav1_img{
    width: .48rem;
    height: .44rem;
    margin-left: .7rem;
}
.nav2_img{
    width: .44rem;
    height: .44rem;
    margin-left: .72rem;
}
.nav3_img{
    width: .38rem;
    height: .44rem;
    margin-left: .76rem;
}
.nav4_img{
    width: .42rem;
    height: .44rem;
    margin-left: .73rem;
}