body{
padding:0px;
margin:0px;
text-align:center;
background:black;
position:relative;
perspective:2000px;
}
#loading{
	position: fixed;
	top:0;
	right: 0;
	bottom: 0;
	left: 0;
	margin: auto;
	width: 300px;
	height: 300px;
	background:url(../png/loading.gif) no-repeat center center;
	background-size: 450px 360px;
}
#center{
width:861px;		
margin:0px auto;
position:relative;
top:-2000px;
transition:transform 3s;
}
.rotate_X{
transform:rotateX(80deg);
}
#center:hover{
transform:rotateX(0deg);
}
#nav_img{
width:861px;
height:0px;
margin:auto;
overflow:hidden;
}
#head_k{
width:861px;
height:50px;
margin:auto;
background:black;
}
#header{
width:861px;
height:73px;
margin:auto;
background:url(../png/01.png) no-repeat;
}
#content{
position:relative;
width:861px;
height:auto;
margin:auto;
color:#33b;
background:url(../png/03.png) repeat-y;
overflow:hidden;
}
#lr_tel{
width:861px;
height:51px;
margin:auto;
background:url(../png/02.png) no-repeat;
}
#nav{
width:861px;
margin:auto;
clear:both;
}
#footer{
width:861px;
height:229px;
margin:auto;
background:url(../png/05.png) no-repeat;
}
a{text-decoration:none;outline:none;blr:expression(this.onFocus=this.blur());/*IE Remove frame*/}
a:focus{outline:none;} /*FF Remove frame*/
area,a {behavior:url(Scripts/sk.htc)} 
a,img{border:0;}
#nav { height: 316px; }
#nav span { float: left; }
#nav span a {
display:block;
height:316px;
overflow:hidden;
background-repeat:no-repeat;
}
#nav span a:hover {
background-position: 0px -316px;
}
#nav span a:active {
background-position: 0 -632px;
}
#nav_a a { width: 245px; background-image: url(../png/4-1.png);}
#nav_b a { width: 183px; background-image: url(../png/4-2.png);}
#nav_c a { width: 183px; background-image: url(../png/4-3.png);}
#nav_d a { width: 250px; background-image: url(../png/4-4.png); }
#works_a,#works_b,#works_c,#works_d{
position:relative;
bottom:-1500px;
width:760px;
height:0px;
margin:0px auto;
background:#060680;
border:1px solid #0d0d9c;
overflow: hidden;
}
.kh {
width:760px;
height:0px;
display:none;
}
.bt {
width:760px;
height:30px;
margin:10px auto 5px;
font-size:14px;
vertical-align:middle;
line-height:30px;
}
.dk {
width:760px;
height:140px;
}
.xk {
float:left;
width:190px;
display:block;
}
.tp { 
width:190px;
display:block;
}
.smwz {
width:190px;
height:25px;
color:#11c;
font-size:12px;
vertical-align:middle;
line-height:25px;
}
.dk_190{
height:190px;
}
.dk_220{
height:220px;
}

#fastgpt-chatbot-button{
bottom:-15px !important;