*{
    margin: 0;
    padding: 0;
}
li{
    list-style: none;
}
a{
    text-decoration: none;
    -webkit-tap-highlight-color:transparent;
}
body{
    width: 100%;
    font-size:15px;
    color: #333;
    background-color: #f6f5fa;
}
.page_container{
    width: 100%;
    max-width: 750px;
    margin: 0 auto;
    height: 100vh;
    padding-bottom: 0;
    overflow: hidden;
}
/*header*/
.header{
    position: fixed;
    top: 0;
    left: 0;
    z-index: 2;
    width: 90%;
    max-width: 750px;
    height: 60px;
    line-height: 60px;
    padding: 0 5%;
    font-size: 17px;
    background-color: #fff;
    border-bottom: 1px #dcdddd solid;
}
.back{
    float: left;
    width: 10%;
}
.back img{
    position: relative;
    top: 3px;
    width: 10px;
}
.h_title{
    float: left;
    width:80%;
    font-weight: bold;
    text-align: center;
}
.index img{
    position: relative;
    top: 3px;
    width: 25px;
}

.center{
    width: 100%;
    height: calc(100vh - 130px);
    overflow-y: auto;
    margin-top: 60px;
}

.foot{
    position: fixed;
    bottom: 0;
    left: 0;
    z-index: 100;
    width: 100%;
    max-width: 750px;
    color: #fff;
    text-align: center;
    line-height: 20px;
    font-size: 12px;
    padding: 10px 0;
    background-color: #373f5e;
}
@media screen and (min-width: 750px) {
    .header{
        left: calc((100% - 750px) / 2);
    }
    .foot{
        left: calc((100% - 750px) / 2);
    }
}

.piaochuang{
    position: fixed;
    right: 0;
    bottom: 30vh;
    z-index: 5;
    width: 60px;
}


.follow_modal_bg{
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    z-index: 20;
    width: 100%;
    height: 100vh;
    background-color: rgba(0,0,0,0.5);
}
.follow_modal{
    display: none;
    position: fixed;
    top: 25vh;
    left: calc((100% - 292px) / 2);
    z-index: 21;
    width: 252px;
    padding: 20px;
    text-align: center;
    font-size: 14px;
    color: #666;
    line-height: 28px;
    background-color: #fff;
    border-radius: 10px;
}
.modal_btn{
    width: 100%;
    text-align: right;
    margin-top: 10px;
}
.modal_btn a,.modal_btn span{
    display: inline-block;
    padding: 2px 10px;
    color: #fff;
    border-radius: 5px;
    font-size: 14px;
    margin:0 6px;
    background-color: cornflowerblue;
    border: 1px cornflowerblue solid;
}
.modal_btn span{
    color: #333;
    background-color: #efefef;
    border: 1px #ccc solid;
}
/*اه³‎¸،¶¯*/
.clearfix:after{
    content:".";
    display:block;
    height:0;
    visibility:hidden;
    clear:both;
}
.clearfix{
    zoom:1;
}