@charset "utf-8";
/* CSS Document */
* {
	margin: 0px; padding: 0px;
}
body{
    width:auto; height:auto; font-family:Verdana, Arial, Helvetica, sans-serif;font-size:14px; margin:0; padding:0; background:#e8e6e7;
}
ul{
    list-style-type:none;
}
.part_1{
	width:1002px; height:1048px; margin:0 auto; background:url(./image/1.jpg);
}
.video{
	width:750px; height:300px;  padding-top:540px; margin:0 auto;
}
.back_btn{
	width:117px; height:30px; position:relative; top:0px; left:850px;
}
.back_btn li{
	width:117px; height:30px; background:url(./image/btn1.png); line-height:30px; text-align:center; font-family:"΢ÈíÑźÚ"; list-style-type:none;
}
.back_btn li:hover{
	width:117px; height:30px; background:url(./image/btn2.png); line-height:30px; text-align:center; font-family:"΢ÈíÑźÚ"; list-style-type:none;
}
.back_btn li a{
	color:#fff; cursor:pointer; text-decoration:none;
}
.part_2{
	width:1002px; height:545px; margin:0 auto; background:url(./image/2.jpg);
}
.part_3{
	width:1002px; height:850px; margin:0 auto; background:url(./image/3.jpg) no-repeat;
}
.Work_collection{
	width:810px; height:765px; position: relative; top:60px; left:107px;
}

.Work_collection li{
	float:left; width:260px; margin-right:10px; margin-bottom:12px;
}

.Work_collection img{
	width:260px; height:195px; border:0; 
}