.about_up{margin-top:50px;}
body{    background: #f4f4f4;}
.sider-con{
  background: #fff;
  height: 639px;
  float: left;
  border:1px solid #e6e6e6;
  margin-right: 10px;
}
.sider-con li{
  width: 198px;
  height: 48px;
  line-height: 48px;
  text-align: center;
  cursor: pointer;
}
.sider-con li a{
  color: #222;
  height: 100%;
  width: 100%;
  display: block;
}
.sider-con li .cur{
  background: #1e79de;
  color: white;
}
.sider-con li a:hover{
  color: #1e79de;
}
.sider-con li .cur:hover{
  color: white;
}
.right-content{
  /* height: 579px; */
  border: 1px solid #e6e6e6;
  background: white;
  float: left;
  width: 875px;
  padding: 30px 48px;
}
.right-content h2{
  color: #222;
  font-size: 18px;
  margin-bottom: 30px;
}
.right-content p{
  color: #666;
  line-height: 24px;
  text-align: justify;
}