.service_bd{height:248px;}


.service_bd{
	position:relative;overflow:hidden;
	}
.service_arrow{
	position:absolute;bottom:1px;left:78px;width:41px;height:21px;background:url(../image/ssj.gif) no-repeat;
	}
.service_main{
	position:relative;overflow:hidden; height:460px; 
	}
.service_main .prev, .service_main .next{
	position:absolute;top:250px;z-index:100;width:48px;height:48px;
	
	}
.service_main .prev{
	left:0; width:50px; height:50px; background:url(../image/left.png) no-repeat left top;

	}
.service_main .prev:hover{
	left:0;background-position:-96px -255px; background:url(../image/left.png) no-repeat right top;
	}
.service_main .next{
	right:0;width:50px; height:50px;background:url(../image/rigt.png) no-repeat left top;
	}
.service_main .next:hover{
	right:0;background-position:-144px -255px;background:url(../image/rigt.png) no-repeat right top;
	}
.service_main .item{
	position:absolute;top:0;left:-100%;z-index:1;width:100%;padding-top:7px;  
	overflow:hidden;
	 }