*{
    margin: 0;
    padding: 0;
}
li{
    list-style: none;
}
a{
    text-decoration: none;
    -webkit-tap-highlight-color:transparent;
}
body{
    width: 100%;
    font-size:16px;
    color: #333;
    background-color: #fff;
}
.page_container{
    width: 100%;
    height: 100vh;
    overflow: hidden;
}
/*header*/
.header{
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 60px;
    line-height: 60px;
    font-size: 18px;
    font-weight: bold;
    background-color: #fff;
}
.back{
    float: left;
    margin-left: 4%;
}
.back img{
    position: relative;
    top: 4px;
    width: 12px;
}
.h_title{
    float: left;
    width:88%;
    text-align: center;
}
/*导航*/
.nav_list{
    position: fixed;
    top: 0;
    left: 0;
    width: 94%;
    height: 60px;
    line-height: 60px;
    padding: 0 3%;
    background-color: #2f8efd;
}
.nav_list ul li{
    float: left;
    width: 16.66%;
    text-align: center;
}
.nav_list ul li img{
    width: 40px;
    margin-top: 10px;
}
.nav_list ul li a{
    display: inline-block;
    width: 100%;
    color: #fff;
    font-weight: bold;
}
.banner{
    width: 100%;
}
.banner img{
    width: 100%;
}
/*中间*/
.center{
    width: 100%;
    height: calc(100vh - 120px);
    overflow-y: auto;
    margin-top: 60px;
}

/*底部*/
.footer{
    position: fixed;
    bottom: 0;
    width: 100%;
    padding: 20px 0;
    color: #fff;
    text-align: center;
    line-height: 25px;
    background-color: #282828;
    margin-top: 20px;
}


/*清除浮动*/
.clearfix:after{
    content:".";
    display:block;
    height:0;
    visibility:hidden;
    clear:both;
}
.clearfix{
    zoom:1;
}