html{margin:0;padding:0;}
body{margin:0px;padding:0px;overflow-x:hidden;}
*{font-family:"Microsoft YaHei","微软雅黑",sans-serif,"宋体";-webkit-box-sizing:border-box;-moz-box-sizing:border-box;box-sizing:border-box}
*{-webkit-box-sizing:border-box;-moz-box-sizing:border-box;box-sizing:border-box}
*:before,*:after{-webkit-box-sizing:border-box;-moz-box-sizing:border-box;box-sizing:border-box}
ul{margin-top:0;margin-bottom:10px}
div,p{margin:0;padding:0;list-style:none}
a{text-decoration:none}
a:link{text-decoration:none}
a:visited{color:#737373;text-decoration:none}
a:hover{text-decoration:none}
a:active{color:#737373;text-decoration:none}
img{object-fit:cover}
ul{list-style:none}
.pr{position:relative}
.pb{position:absolute}
a{color:#525152}
dd,dl{margin:0;padding:0}
em{font-style:normal}
.main-middle{width:1200px;margin:0 auto}
.fl{float:left}
.fr{float:right}
.main{width:100%;padding:30px 0;flex:1}
.main-gray{width:100%;background-color:#f7f7f7;padding:30px 0;flex:1}
.clear{clear:both;width:100%;font-size:0px}
.tr{text-align:right}
.clear{clear:both}
a:focus{text-decoration:none}
.clearfix:after{visibility:hidden;display:block;font-size:0;content:" ";clear:both;height:0}
.clearfix{*zoom:1}
h1,h2,h3,h4,h5,h6,h7{margin:0;padding:0}
div,span,p,ul,li,h3,img,section{margin:0;padding:0;border:0 none;outline:none}
div:hover{text-decoration:none}
.overf{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.b-shadow{-o-box-shadow:0 0 25px rgba(0,0,0,.08);-ms-box-shadow:0 0 25px rgba(0,0,0,.08);-moz-box-shadow:0 0 25px rgba(0,0,0,.08);-webkit-box-shadow:0 0 25px rgba(0,0,0,.08);box-shadow:0 0 25px rgba(0,0,0,.08)}
@media (max-width:768px){
/* html{height: 100%;}
body{height: 100%;display: flex;flex-direction: column;} */
.main{padding:0}
.main-middle{width:100%}
}
.bg_gray{
    background-color: #f5f5f5;
}