body,h1,h2,h3,h4,h5,h6,hr,p,blockquote,dl,dt,dd,ul,ol,li,pre,form,fieldset,legend,button,input,textarea,th,td,div{margin:0;padding:0;}
h1,h2,h3,h4,h5,h6{font-size:100%;}
address,cite,dfn,em,var{font-style:normal;}
body{font-family:"微软雅黑";color:#333;font-size:14px;}
ul,ol{list-style:none;}
a{text-decoration:none;}
a:hover{text-decoration:underline;}
table{border-collapse:collapse;border-spacing:0;}
.clearfix:after{content:".";display:block;height:0;clear:both;visibility:hidden;}
.f_l{float:left;}.f_r{float:right;}
input{outline:none;text-indent:0.5em;}
.black_box{width:100%;height:100%;position:fixed;top:0;left:0;right:0;bottom:0;z-index:999998;background:rgba(0,0,0,0.5);}
.alert_box{position:fixed;z-index:999999;top:50%;left:50%;right:0;bottom:0;text-align:center;margin-left: -300px;margin-top: -180px;}
.w1200{width:1200px;margin: 0 auto;}