*{
padding:0;
margin:0;
text-decoration:none;
}
.big{
width:100%;
height:1520px;
margin:auto;
}
.sou{
width:100%;
height:70px;
background:#2a514d;
}
ul{
list-style:none;
width:100%;
height:70px;
padding-left:250px;
}
li{
  width:170px;
  height:70px;
  float:left;
  text-align:center;
  line-height:70px;
}
a{
  color:white;
  font-size:14px;
  display:block;
}
a:hover{
font-size:18px;
font-weight:bold;
}
#guanyu{
background:#986524;
}
#tou{
margin-top:0px;
margin-right:0px;
}
#logo{
position:absolute;
top:13px;
left:30px;
}
.nei{
width:100%;
height:1200px;
background:#668b78;
position:absolute;
top:620px;
z-index:8;
}
.one{
width:90%;
height:500px;
margin:30px auto;
border:1px solid #2a514d;
}
#jie{
color:white;
line-height:35px;
padding-left:420px;
}
span{
display:inline-block;
color:#2a514d;
font-size:18px;
}
.two{
width:90%;
height:400px;
margin:100px auto;
border:1px solid #2a514d;
}
#cheng{
color:white;
line-height:35px;
padding-right:370px;
}
.yewei{
width:100%;
height:100px;
background:#2a514d;
margin-top:50px;
}
#huanying{
font-size:24px;
color:white;
text-align:center;
padding-top:35px;
}