/*ÂÖ²¥*/
	.banner{position:relative;margin:0 auto;overflow:hidden;}
	.img{width:100%;height:450px;overflow:hidden;position:relative;margin:0 auto;}
	.img>a{width:100%;height:450px;overflow:hidden;position:absolute;top:0;left:0;background-position:center center;background-repeat:no-repeat;}
	.btn{width:100%;position:relative;bottom:240px;display:none;}
	.btn_left,.btn_right{width:40px;height:80px;display:block;position:absolute;top:0;}
	.btn_left{background:url(/Content/pc_ch/img/btn_01.png) no-repeat;left:4%;}
	.btn_right{background:url(/Content/pc_ch/img/btn_02.png) no-repeat;right:4%;}
	.btn_left:hover{background:url(/Content/pc_ch/img/btn_1.jpg) no-repeat;}
	.btn_right:hover{background:url(/Content/pc_ch/img/btn_2.jpg) no-repeat;}
	.dot{width:100%;height:18px;text-align:center;position:absolute;bottom:20px;z-index:10;}
	.dot>span{width:18px;height:18px;display:inline-block;margin-left:10px;cursor:pointer;background:url(/Content/pc_ch/img/dot_01.png) no-repeat;}
	.dot>.active{background:url(/Content/pc_ch/img/dot_1.png) no-repeat;}
	.banner:hover .btn{display:block;}
	/*ÊÖ·çÇÙ*/
	.content_box{width:100%;height:165px;overflow:hidden;margin-top:40px;}
	.content_box>a{width:200px;height:165px;display:block;float:left;}