@charset "gb2312";
/*-- 公共样式 --*/
 /* CSS Document */
body{ overflow-x: hidden;margin:0px; padding:0px; font-size:13px; font-family:Arial, Helvetica, sans-serif,"微软雅黑","宋体"; color:#000000; font-weight:500;overflow-x: hidden;}
div,from,li,ul,dl,dd,dt,img,p,span{ margin:0;padding:0;border:0;  font-size:13px; font-weight:500;font-family:"微软雅黑","宋体";}
ul{list-style-type:none;}
li{list-style:none;}
a{text-decoration:none;cursor:pointer}
a:hover {text-decoration: none;}
* {	margin: 0px;padding: 0px;}  

/* CSS Document */
.banner1 {width:100%;height:199px; background:url(/statics/aist/zt/shouxiaotui2017/images/banner1.jpg) top center no-repeat;}
.banner2 {width:100%;height:200px; background:url(/statics/aist/zt/shouxiaotui2017/images/banner2.jpg) top center no-repeat;}
.banner3 {width:100%;height:199px; background:url(/statics/aist/zt/shouxiaotui2017/images/banner3.jpg) top center no-repeat;}

.m-con {width: 1100px;margin: 0 auto;}

.main1 div:nth-child(1){width:100%;height:222px; background:url(/statics/aist/zt/shouxiaotui2017/images/stz_05.jpg) top center no-repeat;}
.main1 div:nth-child(2){width:100%;height:273px; background:url(/statics/aist/zt/shouxiaotui2017/images/stz_06.jpg) top center no-repeat;}
.main1 div:nth-child(3){width:100%;height:188px; background:url(/statics/aist/zt/shouxiaotui2017/images/stz_07.jpg) top center no-repeat;}
.main1 div:nth-child(4){width:100%;height:205px; background:url(/statics/aist/zt/shouxiaotui2017/images/stz_08.jpg) top center no-repeat;}
.main1 div:nth-child(4) a {width: 100%;height: 100%;display: block;}

.main2 {width:100%;height:1337px; background:url(/statics/aist/zt/shouxiaotui2017/images/stz_09.jpg) top center no-repeat;}
.cler {clear: both;}
.slidemb { width:1100px; height:auto; overflow:hidden;margin:0 auto 10px;}
.slidemb .hd { width:650px; margin:20px auto; height:auto;padding-top: 142px;}
.slidemb .hd ul{zoom:1; width:100%;margin:0 auto; height:auto; }
.slidemb .hd ul li {width:315px;height:105px; float: left;}
.slidemb .hd ul a { width:315px;height:70px;font-size:18px; text-align:center; line-height:24px; display:block;color:#fff;background:url(/statics/aist/zt/shouxiaotui2017/images/hui.png) top center no-repeat;padding-top: 35px;}
.slidemb .hd ul a:hover {width:315px;height:70px;background:url(/statics/aist/zt/shouxiaotui2017/images/hover.png) top center no-repeat;color:#fff;}
.slidemb .hd li.on a {width:315px;height:70px;background:url(/statics/aist/zt/shouxiaotui2017/images/hover.png) top center no-repeat;color:#fff;}
.slidemb .bd{ position:relative; height:1040px;overflow:hidden; z-index:0;   }
.slidemb .bd ul{height:1040px; overflow:hidden; margin:0 auto; width:100%;}
.slidemb .bd li{ zoom:1; width:99% !important;height:1040px; text-align:center;overflow:hidden;background:none;}

.main3 {width:100%;height:854px; background:url(/statics/aist/zt/shouxiaotui2017/images/stz_10.jpg) top center no-repeat;}
.cler {clear: both;}
.slideal { width:1100px; height:auto; overflow:hidden;margin:0 auto 10px;}
.slideal .hd { width:650px; margin:20px auto; height:auto;padding-top: 142px;}
.slideal .hd ul{zoom:1; width:100%;margin:0 auto; height:auto; }
.slideal .hd ul li {width:315px;height:105px; float: left;}
.slideal .hd ul a { width:315px;height:70px;font-size:18px; text-align:center; line-height:24px; display:block;color:#fff;background:url(/statics/aist/zt/shouxiaotui2017/images/hui.png) top center no-repeat;padding-top: 45px;}
.slideal .hd ul a:hover {width:315px;height:70px;background:url(/statics/aist/zt/shouxiaotui2017/images/hover.png) top center no-repeat;color:#fff;}
.slideal .hd li.on a {width:315px;height:70px;background:url(/statics/aist/zt/shouxiaotui2017/images/hover.png) top center no-repeat;color:#fff;}
.slideal .bd{ position:relative; height:249px;overflow:hidden; z-index:0;padding-top: 50px;   }
.slideal .bd ul{height:249px; overflow:hidden; margin:0 auto; width:100%;}
.slideal .bd li{ zoom:1; width:100% !important;height:249px; text-align:center;overflow:hidden;background:none;}
.main3 .niu {width: 283px;margin: 0 auto;padding-top: 30px;}

.main4 div:nth-child(1){width:100%;height:200px; background:url(/statics/aist/zt/shouxiaotui2017/images/stz_11.jpg) top center no-repeat;}
.main4 div:nth-child(2){width:100%;height:196px; background:url(/statics/aist/zt/shouxiaotui2017/images/stz_12.jpg) top center no-repeat;}
.main4 div:nth-child(3){width:100%;height:565px; background:url(/statics/aist/zt/shouxiaotui2017/images/stz_13.jpg) top center no-repeat;}
.main4 div:nth-child(4){width:100%;height:238px; background:url(/statics/aist/zt/shouxiaotui2017/images/stz_14.jpg) top center no-repeat;}
.main4 div:nth-child(5){width:100%;height:251px; background:url(/statics/aist/zt/shouxiaotui2017/images/stz_15.jpg) top center no-repeat;}
.main4 div:nth-child(6){width:100%;height:327px; background:url(/statics/aist/zt/shouxiaotui2017/images/stz_16.jpg) top center no-repeat;}
.main4 div:nth-child(7){width:100%;height:248px; background:url(/statics/aist/zt/shouxiaotui2017/images/stz_17.jpg) top center no-repeat;}
.main4 div:nth-child(3) a {width: 100%;height: 100%;display: block;}
.main4 div:nth-child(7) a {width: 100%;height: 100%;display: block;}