.bigbox-banner{ width:1300px; margin:0 auto; background:url(bannerbj.png) no-repeat; height:130px; }
.mr_frbox{height:128px;padding:35px 0px 0px;}
.mr_frBtnL{float:left;margin:0px 20px 0px 0px;cursor:pointer;display:inline; width:36px; height:60px;}
.mr_frUl{float:left;height:80px;width:1200px;}
.mr_frBtnR{float:right;margin-top:0px;cursor:pointer;z-index: 99999;
    position: relative;}
.mr_frUl ul li{display:inline;float:left;height:80px;width:220px;margin-right:20px;overflow:hidden; }
.mr_frUl ul li img{display:block;width:220px; height:61px;}
.mr_frUl ul li a:hover img{}
@media screen and  (max-width:1300px){	
.bigbox-banner{ width:1092px; margin:0 auto; background:none; border:1px solid #a22125; height:130px; }
.mr_frUl{float:left;height:80px;width:1000px;overflow: hidden;}
.mr_frUl ul li{display:inline;float:left;height:80px;width:220px;margin-right:30px;}
}
@media screen and  (max-width:1092px){	
.bigbox-banner{ width:843px;}
.mr_frUl{float:left;height:80px;width:749px;}
}
@media screen and  (max-width:843px){	
.bigbox-banner{ width:570px;}
.mr_frUl{float:left;height:80px;width:477px;}
.mr_frUl ul li{margin-right:20px;}
}

@media screen and  (max-width:570px){
.bigbox-banner{ width:99%; height:90px;}	
.mr_frUl{float:left;height:auto;width:91%;}
.mr_frbox{height:60px;padding:15px 0px 0px;}
.mr_frUl ul li{height:auto;width:49%;margin-right:5px;}	
.mr_frUl ul li img{display:block;width:100%}
.mr_frBtnL{ width:20px; margin:10px 5px 0px 0px;height:auto;}
.mr_frBtnR{width:20px;margin-top:10px; height:auto;}
}
@media screen and  (max-width:500px){
.bigbox-banner{ width:99%; height:80px;}
.mr_frbox{height:60px;padding:12px 0px 0px;}
.mr_frUl{float:left;height:auto;width:85%;}	
.mr_frBtnL{ width:20px; margin:5px 5px 0px 0px;height:auto;}
.mr_frBtnR{width:20px;margin-top:5px; height:auto;}
}