a:link {
	color: #5c5c5c;
	text-decoration: none;
}
a:visited {
	text-decoration: none;
	color: #000000;
}
a:hover {
	color: #5c5c5c;
	text-decoration:underline;
	
}
a:active {
	text-decoration: none;
	color: #0f357b;
}
.b:link {
	color: #d2d2d2;
	text-decoration: none;
}
.b:visited {
	text-decoration: none;
	color: #d2d2d2;
}
.b:hover {
	color: #ffffff;
	text-decoration:underline;
	
}
.b:active {
	text-decoration: none;
	color: #d2d2d2;
}

.c:link {
	color: #ffffff;
	text-decoration: none;
}
.c:visited {
	text-decoration: none;
	color: #d2d2d2;
}
.c:hover {
	color: #cccccc;
	text-decoration:underline;
	
}
.c:active {
	text-decoration: none;
	color: #d2d2d2;
}
.d:link {
	color: #e1e1e1;
	text-decoration: none;
}
.d:visited {
	text-decoration: none;
	color: #d2d2d2;
}
.d:hover {
	color: #ffffff;
	text-decoration:underline;
	
}
.d:active {
	text-decoration: none;
	color: #e1e1e1;
}

.e:link {
	color: #3870bb;
	text-decoration: none;
}
.e:visited {
	text-decoration: none;
	color: #5c5c5c;
}
.e:hover {
	color: #014689;
	text-decoration:underline;
	
}
.e:active {
	text-decoration: none;
	color: #5c5c5c;
}
.f:link {
	color: #000000;
	text-decoration: none;
}
.f:visited {
	text-decoration: none;
	color: #5c5c5c;
}
.f:hover {
	color: #ffffff;
	text-decoration:underline;
	
}
.f:active {
	text-decoration: none;
	color: #5c5c5c;
}
.g:link {
	color: #000000;
	text-decoration: none;
}
.g:visited {
	text-decoration: none;
	color: #5c5c5c;
}
.g:hover {
	color: #ffffff;
	text-decoration:underline;
	
}
.g:active {
	text-decoration: none;
	color: #5c5c5c;
}
#layout{
width:100%;
height:200px;
background-image:url(../images/top.gif);
background-repeat:repeat-x;
}
#top{
margin:0 auto;
width:1000px;}
#top_sub1{
margin:0 auto;
width:1000px;}
#top_sub2{
margin:0 auto;
width:1000px;}
#top_sub3{
margin:0 auto;
width:1000px;
height:59px;
background-image:url(../images/nav_bg.jpg);
background-repeat:no-repeat;
float:left;}
#top_sub1_sub1{
float:left;
line-height:32px;}
#top_sub1_sub2{
float:left;
width:473px;
height:32px;
}
#top_sub1_sub3{
float:left;
width:45px;
height:32px;
background-image:url(../images/neiye_06.jpg);
background-repeat:no-repeat;
}
#top_sub1_sub4{
float:left;
width:54px;
height:32px;
}
#top_sub1_sub5{
float:left;
width:34px;
height:32px;
background-image:url(../images/neiye_08.jpg);
background-repeat:no-repeat;
}
#top_sub2_sub1{
float:left;}
#top_sub2_sub1 img{
width:500px;
height:109px;}

#top_sub2_sub2{
float:left;
width:201px;
height:100px;}
#top_sub2_sub3{
float:left;
width:299px;
height:109px;}

#top_sub2_sub3_sub1{
margin-top:32px;}

#top_sub2_sub3_sub2{
width:279px;
height:31px;
background-image:url(../images/1.gif);
background-repeat:no-repeat;
background-position:left top;
padding-left:20px;
padding-top:2px;
}
#top_sub2_sub3_sub2 img{
width:45px;
height:30px;
float:right;}
#top_sub3 ul{
list-style-type: none;
display:block;
padding:0px;
margin:0px;}
#top_sub3 li{
width:100px;
height:38px;
float:left;
color:#FFFFFF;
list-style-type: none;
display:block;
text-align:center;
padding-top:21px;
font-family:"微软雅黑","宋体";
font-size:14px;}
#top_sub3 li:hover{
width:100px;
height:38px;
float:left;
color:#b1b1b1;
list-style-type: none;
display:block;
text-align:center;
padding-top:21px;}


#ban{
margin:0 auto;
width:100%;
position:relative;
z-index:-20;}
#main{
width:100%;
background-color:#FFFFFF;
background-image:url(../images/main.jpg);
background-repeat:repeat-x;
+height:820px;}
#main_sub3{
width:1000px;
margin:0 auto;}
#main_sub2{
width:100%;
background-color:#FFFFFF;
background-image:url(../images/main.jpg);
background-repeat:repeat-x;
height:79px;}
#main_sub1_sub1{
width:1000px;
margin:0 auto;
}
#main_sub1_sub2{
width:1000px;
margin:0 auto;
}
#main_sub1_sub1_sub1{
width:272px;
height:49px;
background-image:url(../images/about_16.jpg);
padding-left:30px;
padding-top:30px;
float:left;}
#main_sub1_sub1_sub2{
width:668px;
height:49px;
background-image:url(../images/about_17.jpg);
float:left;
padding-left:30px;
padding-top:30px;
}
#main_sub1_sub1_sub2_sub1{
float:left;}
#main_sub1_sub1_sub2_sub2{
float:right;}
#main_sub3_sub1{
float:left;}
#main_sub3_sub2{
float:left;}
#main_sub3_sub1 ul{
list-style-type: none;
display:block;
padding:0px;
margin-left:15px;
margin-top:8px;}
#main_sub3_sub1 li{
width:280px;
height:26px;
color:#000000;
background-image:url(../images/38.gif);
background-repeat:repeat-x;
list-style-type: none;
display:block;
text-align:center;
padding-top:12px;
font-family:"微软雅黑","宋体";
font-size:14px;}
#main_sub3_sub1 li:hover{
width:280px;
height:26px;
color:#b1b1b1;
background-image:url(../images/39.gif);
background-repeat:repeat-x;
list-style-type: none;
display:block;
text-align:center;
padding-top:12px;}

#main_sub3_sub1_sub3{
padding-left:20px;}

#main_sub3_sub2_sub1{
width:31px;
height:476px;
background-image:url(../images/neiye_20.jpg);
background-repeat:no-repeat;
float:left;}
#main_sub3_sub2_sub2{
width:647px;
float:left;
padding-bottom:20px;}

#btm{
width:100%;
height:53px;
background-color:#014689;
float:left;}
#btm_sub1{
width:1000px;
margin:0 auto;}

#btm_sub1_sub1{
line-height:53px;
float:left;}
#btm_sub1_sub2{
line-height:53px;
float:right;}
#main_sub3_sub1_sub2 img{
width:302px;
height:122px;}
#sy{
width:100%;
height:849px;
background-image:url(../images/sy.jpg);
background-repeat:repeat-x;
}
#sy_sub1{
width:1000px;
margin:0 auto;}
#sy_sub1_sub1_sub1{
float:left;}
#sy_sub1_sub1_sub2{
float:left;}
#sy_sub1_sub1_sub3{
float:left;}

#sy_sub1_sub2_sub1{
width:296px;
height:221px;
float:left;}
#sy_sub1_sub2_sub1 img{
width:121px;
height:95px;}
#sy_sub1_sub2_sub3 img{
width:127px;
height:94px;}
#sy_sub1_sub2_sub2{
width:38px;
height:221px;
float:left;}
#sy_sub1_sub2_sub3{
width:368px;
height:221px;
float:left;}
#sy_sub1_sub2_sub4{
width:38px;
height:221px;
float:left;}
#sy_sub1_sub2_sub5{
width:240px;
height:221px;
float:left;
text-align:left;}
#sy_sub1_sub3_sub1{
width:120px;
height:52px;
background-image:url(../images/index3_15.jpg);
background-repeat:no-repeat;
float:left;}
#sy_sub1_sub3_sub2{
line-height:38px;
padding-top:14px;
float:right;}
#sy_sub1_sub4{
width:1000px;
height:218px;
margin:0 auto;
float:left;}
#sy_sub1_sub5_sub1{
width:300px;
height:68px;
float:left;}
#sy_sub1_sub5_sub2{
width:700px;
height:68px;
float:left;}

#sy_sub1_sub6_sub1{
width:280px;
height:219px;
padding-left:20px;
float:left;}
#sy_sub1_sub6_sub2{
width:38px;
height:219px;
float:left;}
#sy_sub1_sub6_sub3{
width:662px;
height:219px;
float:left;}


#sy_sub1_sub6_sub1 ul{
list-style-type: none;
display:block;
padding:0px;
margin:0px;}
#sy_sub1_sub6_sub1 li{
width:280px;
height:24px;
background-image:url(../images/bg_menu.jpg);
background-repeat:repeat-x;
color:#00000;
list-style-type: none;
display:block;
text-align:left;
font-family:"微软雅黑","宋体";
font-size:12px;}
#sy_sub1_sub6_sub1 li:hover{
width:280px;
height:24px;
background-image:url(../images/bg_menu.jpg);
background-repeat:repeat-x;
color:#b1b1b1;
list-style-type: none;
display:block;
text-align:left;
}
<!--下拉菜单开始-->


#navjx2 {
  list-style-type: none;
display:block;
padding:0px;
margin:0px;
}

#navjx2 a {
 display: block; text-align:center;
}

#navjx2 a:link  {
 color:#fff; text-decoration:none;
}
#navjx2 a:visited  {
 color:#fff;text-decoration:none;
}
#navjx2 a:hover  {
 color:#ccc;text-decoration:none;
}

#navjx2 li {
width:100px;
height:38px;
float:left;
color:#FFFFFF;
list-style-type: none;
display:block;
text-align:center;
padding-top:21px;
font-family:"微软雅黑","宋体";
font-size:14px;
}
#navjx2 li a:hover{
width:100px;
height:38px;
float:left;
color:#b1b1b1;
list-style-type: none;
display:block;
text-align:center;

}
#navjx2 li ul {
 list-style-type: none;text-align:center;
 left: -999em; 
  margin-top:0px;
  position:relative;
 

}
#navjx2 li ul li{
 float: left; 
 background: #014689;
 text-align:center;
 height:50px;
 padding-top:20px;
  border-bottom: #9ac9f6 solid 1px;

}


#navjx2 li ul a{
 display: block; text-align:center;
 width:100px;
  padding-top:20px;
 height:50px;

}

#navjx2 li ul a:link  {
background-color:#014689; text-decoration:none;
width:100px;
 height:50px;
  padding-top:20px;
border-bottom: #9ac9f6 solid 1px;
}
#navjx2 li ul a:visited  {
background-color:#014689; text-decoration:none;
width:100px;
 padding-top:20px;
height:50px;
border-bottom: #9ac9f6 solid 1px;
}
#navjx2 li ul a:hover  {
 color:#ffffff;text-decoration:none;font-weight:normal;
 background-ciolor:#4496e5;
 height:50px;
  padding-top:20px;
 border-bottom: #9ac9f6 solid 1px;
}

#navjx2 li:hover ul {
 left: auto;
}
#navjx2 li.sfhover ul {
 left: auto;
}
#content {
 clear: left;
}
<!--下拉菜单结束-->