a:hover,
a:focus {
  text-underline: none;
}
#main {
  margin-top: 50px;
}
#main > .tit > .en_tit {
  margin-bottom: 50px;
}
#main > .des {
  margin: 0px auto;
  width: 80%;
  border-top: 1px solid #ccc;
  padding: 40px 0 20px;
}
#main > .des > .des_imgbox {
  margin: 30px 0;
}
#main > .des > p {
  color: #555;
  font-size: 16px;
  line-height: 40px;
  text-indent: 2em;
}
#main > .des > p.lh_50 {
  line-height: 50px;
}
#main > .des > p.mt_20 {
  margin-top: 20px;
}
#main > .des > .des_imgbox > .item > img {
  display: block;
  margin: 0 auto;
  width: 90%;
  height: auto;
}