.b_slides{width:100%;height:700px;position:relative;overflow:hidden; background-color:#000000;}
.b_slideInner{height:700px;position:relative;left:0;margin-left:0;}
.b_slideInner a{display:block;height:700px;background-size:cover;background-position:center center;position:relative;text-align:center;z-index:1;}
.b_slideInner .b_slide3 .b_img2{top:200px;}
.b_slideInner .b_slide3 .b_img3{width:181px;height:286px;position:absolute;left:50%;margin-left:330px;top:330px;}
.b_nav{width:1200px;position:relative;left:50%;margin-left:-600px;display:none;}
.b_nav a{display:block;width:41px;height:119px;opacity:.8;z-index:9;}
.b_nav a.b_prev{position:absolute;left:0;top:-350px;margin-top:-58px;background:url(../images/ban_pre.png) no-repeat;}
.b_nav a.b_next{position:absolute;right:0;top:-350px;margin-top:-58px;background:url(../images/ban_next.png) no-repeat;}
.b_navListBox{position:absolute;left:50%;top:675px;z-index:99;}
.b_navListBox li{width:12px;height:12px;float:left;margin-left:5px;border-radius:50%;overflow:hidden;}
.b_navListBox li:first-child{margin-left:0;}
.b_navListBox li a{display:block;width:100%;height:100%;border-radius:50%;background-color:#fff;box-shadow:0 0 5px #666 inset;}
.b_navListBox li a.b_active{background-color:#55ddff;}

#b_slides_ss{ position:absolute; left:50%; top:50%; margin-left:-250px; margin-top:-140px; width:500px; height:280px; background-image:url(../images/b_tm.png); z-index:8; }
.b_slides_search{ position:relative; float:left; height:48px; width:479px; margin-top:116px; margin-left: 4px; line-height:48px; z-index:8; border-top:1px solid #ffffff; border-bottom:1px solid #ffffff;  border-left:1px solid #ffffff; }
.b_slides_search:hover{  -webkit-box-shadow:0 0 3px #777;  -moz-box-shadow:0 0 3px #777;  box-shadow:0 0 3px #777; border-radius:0 48px 48px 0; border-radius:48px; overflow:hidden; border-top:1px solid #17a3ff; border-bottom:1px solid #17a3ff;border-left:1px solid #17a3ff; }
.b_slides_search_text{ float:left; height:48px; width:337px; line-height:48px; text-align:left; text-indent:15px; border:0px; background-color:#FFFFFF; }
.b_slides_search_submit{ float:left; height:48px; width:142px; line-height:48px; text-align:center; font-size:16px; border:0px; cursor:pointer; background:none; background-color:#17a3ff; color:#FFFFFF; }
.b_slides_search:hover .b_slides_search_submit{ background-color:#d9963b; }
.b_slides_sou{ position:absolute; right:16px; top:68px; height:144px; width:143px; z-index:7; }
.b_slides_sou li{ float:left; height:48px; width:142px; line-height:48px; text-align:center; color:#FFFFFF; font-size:16px; cursor:pointer; }
.b_slideInner a div.b_img1{ position:absolute; left:50%; top:50%; margin-left:-250px; margin-top:-140px; width:330px; height:60px; font-size:48px; font-family:Impact; text-align:left; color:#FFFFFF; z-index:9; }
.b_slideInner a div.b_img2{ position:absolute; left:50%; top:50%; margin-left:-250px; margin-top:-80px; width:330px; height:20px; font-size:14px; font-family:Impact; text-align:left; color:#FFFFFF; z-index:9; }
@media screen and (min-width:1420px){ /* 执行1200px版的css*/   
}
@media screen and (min-width: 1220px) and (max-width: 1419px) { /*执行1000px版的css*/  
}
@media screen and (min-width: 750px) and (max-width: 1219px) { /*执行750px版的css*/  
}
@media screen and (max-width: 749px) { /*执行100%宽度版的css*/  
.b_slides{width:100%;height:300px;position:relative;overflow:hidden;}
.b_slideInner{height:300px;position:relative;left:0;margin-left:0;}
.b_slideInner a{display:block;height:300px;background-size:cover;background-position:center center;position:relative;text-align:center;z-index:1;}

#b_slides_ss{ position:absolute; left:50%; top:50%; margin-left:-151px; margin-top:-72px; width:302px; height:144px; background-image:none; z-index:8; }
.b_slides_search{ position:relative; float:left; height:48px; width:300px; margin-top:100px; margin-left: 0px; line-height:48px; z-index:8; border-top:1px solid #ffffff; border-bottom:1px solid #ffffff;  border:1px solid #ffffff; }
.b_slides_search:hover{  -webkit-box-shadow:0 0 3px #777;  -moz-box-shadow:0 0 3px #777;  box-shadow:0 0 3px #777; border-radius:0 48px 48px 0; border-radius:48px; overflow:hidden; border-top:1px solid #17a3ff; border-bottom:1px solid #17a3ff;border:1px solid #17a3ff; }
.b_slides_search_text{ float:left; height:48px; width:220px; line-height:48px; text-align:left; text-indent:15px; border:0px; background-color:#FFFFFF; }
.b_slides_search_submit{ float:left; height:48px; width:80px; line-height:48px; text-align:center; font-size:16px; border:0px; cursor:pointer; background:none; background-color:#17a3ff; color:#FFFFFF; }
.b_slides_sou{ position:absolute; right:0px; top:53px; height:144px; width:80px; z-index:7; }
.b_slides_sou li{ float:left; height:48px; width:80px; line-height:48px; text-align:center; color:#FFFFFF; font-size:16px; cursor:pointer; }
.b_slideInner a div.b_img1{ position:absolute; left:50%; top:50%; margin-left:-150px; margin-top:-80px; width:300px; height:30px; font-size:18px; font-family:Impact; text-align:left; color:#FFFFFF; z-index:9; }
.b_slideInner a div.b_img2{ position:absolute; left:50%; top:50%; margin-left:-150px; margin-top:-50px; width:300px; height:20px; font-size:12px; font-family:Impact; text-align:left; color:#FFFFFF; z-index:9; }
}