.list{
	height:420px;
	position: relative;
	z-index: 10;
}
.slide_screen{width:100%;margin:0 auto;overflow:hidden;zoom:1}
.slide_screen li{float:left;overflow:hidden;position:relative;margin-right:4px}
.slide_screen li.liA{width:350px;height:420px;float: left;}
.slide_screen li.liD{width:800px;height:420px;float: right;}
.slide_screen li.liA .window{width:2450px}
.slide_screen li.liD .window{width:5600px}
.slide_screen li img{display:block}
.slide_screen li .piece{float:left;position:relative;overflow:hidden;zoom:1}
.slide_screen li.liA,.slide_screen li.liA .piece,.slide_screen li.liA img{width:350px;height:420px}
.slide_screen li.liD,.slide_screen li.liD .piece,.slide_screen li.liD img{width:800px;height:420px;margin-right:0}

.libtn{
	width:160px;
	text-align:center;
	clear: both;
	float: right;
	margin-top: -33px;
	margin-right: 20px;
	margin-bottom: 0;
	margin-left: auto;
	position: relative;
	z-index: 100;
	height: auto;
}
.libtn li{
	width:13px;
	height:13px;
	float: left;
	display:inline;
	cursor:pointer;
	background-image: url(qhhbg.jpg);
	background-repeat: no-repeat;
	background-position: 0px 0px;
	margin-right: 7px;
	background-color: #FF0000;
	z-index: 80;
}
.libtn li.selected{
	background-image: url(qhhov.jpg);
	background-color: #000000;
}