* {
  margin: 0;
  padding: 0
}
em,i {
  font-style: normal
}
li {
  list-style: none
}
img {
  border: 0;
  vertical-align: middle
}
button {
  cursor: pointer
}
a {
  color: #000000;
text-decoration: none
}
.textarea {
padding: 0;
margin: 0;
font-family: Microsoft YaHei, sans-serif;
}
.header{
height: 80px;
width: 1200px;
margin: auto;
}
.header_left{
display:block;
float: left;
line-height:80px;
}
.header_right ul li{
float: right;
line-height:80px;
font-size: 16px;
padding: 0 25px;
cursor: pointer;
}
.default{
color: #fff;
background: #4d9688;
}
.default a{
color: #fff;
}
.content_1{
width: auto;
height: 100px;
background: url(../img/关于我们banner.png) no-repeat;
}
.content_2{
width: auto;
/* height: 420px; */
height: 100%;
background:url(../img/介绍bj.png);
}
.content_2_title{
width: 1200px;
height: 80px;
margin: auto;
padding-top: 40px;
}
.content_2_title_1{
color: #4d9688;
font-size: 24px;
float: left;
margin-right: 5PX;
}
.content_2_title_2{
color: #999999;
float: left;
padding-top: 10px;
}
.content_2_title_3{
float: right;
width: 460px;
cursor: pointer;
}
.content_2_title_3_1{
float: left;
width: 100px;
height: 40px;
background: #4d9688; 
border-radius: 6px;
color: #FFFFFF;
text-align: center;
line-height: 40px;
margin-right: 20px;
}
.content_2_title_3_2{
float: left;
width: 100px;
height: 40px;
background: #e3e3e3; 
border-radius: 6px;
text-align: center;
line-height: 40px;
margin-right: 20px;
}
.content_2_title_3_3{
float: left;
width: 100px;
height: 40px;
background: #e3e3e3; 
border-radius: 6px;
text-align: center;
line-height: 40px;
}
.content_2_c{
width: 1200px;
height: 100%;
height: 480px;
margin: auto;
color: #333333;
}
.content_2_c_l{
width: 20%;
float: left;
}
.content_2_c_l_img {
  width: 100%;
  height: auto;
  display: block;
}
.content_2_c_r{
width: 710px;
max-width: 710px;
line-height: 30px;
float: right;
}
.content_3{
width: 1200px;
height: 550px;
margin: auto;
color: #333333
}
.content_3_title{
width: 1200px;
height: 80px;
margin-top: 40px;
}
.content_3_title_1{
float: right;
color: #999999;
padding-top: 10px;
}
.content_3_title_2{
color: #4d9688;
font-size: 24px;
float: right;
margin-right: 5PX;
}
.content_3_c{
width: 1200px;
height: 50px;
margin: auto;
}
.content_3_c_l{
width: 710px;
line-height: 30px;
float: left;
}
.content_3_c_r{
width: 20%;
float: right;
}
.content_3_c_l_img {
  width: 100%;
  height: auto;
  display: block;
}
.footer{
width: auto;
height: 250px;
background-color: #333333;
color: #FFFFFF;
}
.footer_box{
width: 1200px;
margin: 0 auto;
line-height: normal;
}
.footer_box_1{
float: left;
margin-top: 50px;
margin-right: 120px;
}
.footer_box_1 h2 {
  font-size: 18px;
  color: #fff;
  margin-bottom: 30px;
font-weight: normal;
}
.footer_box_1 p {
  font-size: 14px;
  color: #CCCCCC;
  margin-bottom: 10px;
}
.footer_box_1 p a {
  font-size: 14px;
  color: #CCCCCC;
  margin-bottom: 10px;
}
.footer_box_2{
float: left;
margin-top: 50px;
}
.footer_box_2 h2 {
  font-size: 18px;
  color: #fff;
  margin-bottom: 30px;
font-weight: normal;
}
.textBold {
  font-size: 20px;
  font-weight: bold;
}