.sub_menu{margin:0px auto;width:86%;height:auto;padding:0.4rem 0% 0% 0%;text-align:center;clear:both;}
.sub_menu ul{float:left;width:100%;height:auto;text-align:center;}
.sub_menu li {float:left;width:20%;height:auto;margin:0.1rem 5% 0.1rem 0rem;position:relative;}
.sub_menu li a{display:block;width:100%;height:0.65rem;line-height:0.65rem;margin-bottom:0.09rem;z-index:2;color:#222222;font-size:0.18rem;font-weight:600;background-color:#F5F5F5;text-align:center;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.sub_menu li:before{display:block;z-index:1;position:absolute;content:'';left:47%;bottom:0.09rem;width:0;height:0;border-left:0.09rem solid transparent;border-right:0.09rem solid transparent;-webkit-transition:all .3s ease-out;transition:all .3s ease-out;}
.sub_menu li.current a,.sub_menu li.current a:hover{color:#ffffff;background-color:#DA251D;}
.sub_menu li.current:before,.sub_menu li.current:hover:before{border-top:0.09rem solid #DA251D;bottom:0;}
.sub_menu li:hover a{color:#ffffff;background-color:#DA251D;}
.sub_menu li:hover:before {border-top:0.09rem solid #DA251D;bottom:0;}
.sub_menu li:nth-child(3n){margin:0.1rem 0rem 0.1rem 0rem;}

@media screen and (min-width:1921px){
.sub_menu{width:16rem;}
}

@media screen and (min-width:1441px) and (max-width:1680px){
.sub_menu{width:96%;}
}

@media screen and (min-width:1200px) and (max-width:1440px){
.sub_menu{width:96%;}

.sub_menu li a{font-size:0.16rem;}
}

@media screen and (min-width:900px) and (max-width:1199px){
.sub_menu{width:96%;}

.sub_menu li {width:30%;margin:0.1rem 1.66% 0.1rem 1.66%;}
.sub_menu li a{height:0.55rem;line-height:0.55rem;font-size:0.16rem;}
}

@media screen and (max-width:899px){
.sub_menu{width:90%;}

.sub_menu li {width:100%;margin:0.1rem 0% 0.1rem 0%;}
.sub_menu li a{height:0.7rem;line-height:0.7rem;font-size:0.24rem;}
.sub_menu li:before{bottom:0.12rem;border-left:0.12rem solid transparent;border-right:0.12rem solid transparent;}
.sub_menu li.current:before,.sub_menu li.current:hover:before,.sub_menu li:hover:before{border-top:0.12rem solid #DA251D;}
.sub_menu li:nth-child(2n){margin-right:0%;}
}