body {
    margin: 0 auto;
    min-width: 320px;
    max-width: 750px;
    background: white;
    font-size: 12px;
    font-family: -apple-system,Helvetica,sans-serif Microsoft YaHei;
    line-height: 1;
    color: #666;
    overflow-x:hidden;
    -webkit-font-smoothing: antialiased;
    scroll-behavior:smooth
}
html{
    font-size: 13.333333vw;
    scroll-behavior:smooth;
    overflow-x: hidden;
}
@media screen and (max-width:320px){

    html{
        font-size: 43px!important;
    }
}

@media screen and (min-width:750px){
    html{
        font-size: 100px!important;
    }
}
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
em,
i {
    font-style: normal;
}

li {
    list-style: none;
}

img,button,input {
    border: 0;
    vertical-align: middle;
}
a{
    text-decoration: none;
    color: #666;
}
/*.clearfix::after,.clearfix::before {*/
/*    visibility: hidden;*/
/*    clear: both;*/
/*    display: block;*/
/*    content: ".";*/
/*    height: 0;*/
/*}*/

/*.clearfix {*/
/*    *zoom: 1;*/
/*}*/

/*//平滑属性*/
html,body{
    scroll-behavior:smooth
}
/*去除移动端点击背景高亮*/
* {
    -webkit-tap-highlight-color: transparent;
}
/*改变移动控件在不同端的显示*/
input {
    -webkit-appearance: none;
}
/*禁止长按a,img标签弹出默认系统菜单*/
img,
a {
    -webkit-touch-callout: none;
}