.page-header {
  margin: 81px 0 20px;
  padding-top: 112px;
  border: 0;
  background: url("../images/about.png") no-repeat;
  background-size: cover;
  height: 322px;
  color: #e4e4e4;
}
.page-header h1 {
  font-family: 'Helvetica-Neue';
  margin-top: 0;
  margin-bottom: 30px;
  font-size: 40px;
  letter-spacing: 2px;
}
.page-header > p{
  width: 40%; 
  margin: auto;
  font-size: 16px;
  letter-spacing: 1px;
  font-family: 'Helvetica-Neue';
  line-height: 1.5;
}
.squareDot {
  height: 12px;
  width: 12px;
  margin: 0;
  background: #646464;
  display: inline-block;
}
.diffBg {
  background-color: #e6e6e6;
}
.diffBg .container {
  position: relative;
}
.diffBg .container .about {
  background-color: #fff;
  padding: 27px 25px;
  margin: 30px auto;
}
.diffBg .container .abt_history{
  margin-bottom: 50px;
}
.diffBg .about .head{
  color: #646464;
  font-size: 16px;
  margin-bottom: 15px;
}
.diffBg .about p {
  color: #646464;
  margin-bottom: 0;
  font-size: 15px;
}
.about .abt_container{padding: 0 10px;text-align: center;}
.about .abt_container > img{margin-bottom: 10px;}
.diffBg .container .about .history {
  padding: 15px;
}
.diffBg .aboutData .col-height {
  background-color: #fff;
  border-color: #e6e6e6;
  border-style: solid;
  border-width: 0 15px;
  padding: 30px;
  color: #646464;
}
.aboutData .list_condet > li{
  margin: 13px 0;
  display: table;
  width: 100%;
}
.aboutData .list_condet > li:first-child{margin-top: 0;}
.aboutData .list_condet > li:last-child{margin-bottom: 0;}
.aboutData .div li > div{
  display: table-cell;
  width: 40%;
  font-size: 15px;
  letter-spacing: 1px;
}
.aboutData .div li > div:last-child{width: 60%;}
.about .list_history > li{
  display: table;
  width: 100%;
  margin-bottom: 11px;
}
.about .list_history > li:last-child{
  margin-bottom: 0;
}
.about .list_history{
  margin-top: 10px;
}
.about .list_history li > div{
  display: table-cell;
  width: 9%;
  font-size: 15px;
  letter-spacing: 1px;
  color: #646464;
}
.about .list_history li > div:last-child{width: 91%;}
/*.abt_datacon .aboutData{padding: 0 55px;}*/