body,p,a,span,h3,h4,h5{
    font-family: "微软雅黑","Microsoft Yahei","Helvetica Neue",Helvetica,Arial,sans-serif;
}
body {
    position: relative;
    padding-top: 50px;
    height: 2000px;
}
.zw{
    height: 35px;
}
h3{
    padding-top: 70px;
    margin-top: -50px;
}
h4{
    padding: 5px 0;
}
footer{
    background-color: #333;
}
.footer {
    display: flex;
    justify-content: center;
    margin-top: 100px;
    padding: 20px;
    color: #999;
}
.footer_div{
    width: 130px;
    margin-right: 60px;
}
.footer_div h5{
    border-bottom: 1px solid #555;
    color: #999;
    font-size: 14px;
    font-weight: normal;
    padding-bottom: 10px;
    margin-bottom: 10px;
}
.footer_div ul{
    margin-left: 0;
    padding-left: 0;
}
footer li{
    list-style: none;
    height: 25px;
    line-height: 25px;
}
footer li a{
    font-size: 12px;
    color: #777;
    transition: .3s;
}
footer li a:hover{
    color: #999;
}
footer copyright p{
    font-size: 12px;
    margin: -10px auto 0;
    padding-bottom: 10px !important;
    text-align: center;
    color: #999;
}
footer copyright p a{
    color: #777;
    transition: .3s;
 }
footer copyright p a:hover{
    color: #999;
}
@media (max-width:768px) {
    .zw{
        display: none;
    }
    .footer_div{
        width: 100%;
    }
    .footer_div ul li{
        float: left;
        margin-right: 10px;
    }
    .fo_hidden{
        display: none;
    }
    footer copyright p{
        text-align: left;
        text-indent: 2em;
    }
}