.Min {
  position: relative;
}

.titPc {
  position: absolute;
  right: 0px;
  top: 20px;
  z-index: 9;
  width: 800px;
}

ul.history_year {
  width: 800px;
  border-bottom: 1px solid #007A91;
  text-align: center;
}

ul.history_year li {
  height: 30px;
  line-height: 30px;
  float: left;
  font-size: 16px;
  color: #828282;
  cursor: pointer;
  padding: 0 5px;
  border: 1px solid #ccc;
  border-bottom: none;
  margin-right: 10px;
}

ul.history_year li.active {
  background: #007A91;
  color: #fff;
}

ul.history_list {
  width: 100%;
  position: relative;
  padding: 80px 0;
}

ul.history_list li {
  line-height: 28px;
  margin-bottom: 15px;
  position: relative;
}

ul.history_list li h2.tit1 {
  line-height: 40px;
  font-size: 16px;
  text-indent: 100px;
}

ul.history_list li.history_li ul li h2.tit {
  margin: 0 0 10px 132px;
  font-size: 18px;
  color: #2175b7;
  padding-left: 25px;
  height: 38px;
  line-height: 30px;
}

ul.history_list li.history_li ul li h2::before {
  content: '';
  position: absolute;
  top: 7px;
  right: -13px;
  height: 0;
  width: 0;
  border: 7px solid transparent;
  border-left: 7px solid #007A91;
}

ul.history_list::before {
  content: '';
  position: absolute;
  top: 0;
  height: 100%;
  width: 4px;
  background: #e7f3fb;
  left: 84px;
  margin-left: -2px;
}

ul.history_list li h2.Title {
  width: 55px;
  text-align: right;
  padding: 0 4px;
  font-size: 16px;
  color: #fff;
  background: #007A91;
  position: relative;
}

ul.history_list li h2.Title::after {
  content: '';
  position: absolute;
  border-radius: 50%;
  width: 15px;
  height: 15px;
  background: #007A91;
  left: 147px;
  top: 6px;
  margin-left: -71px;
}

.con_box {
  width: 780px;
  padding: 10px;
  background: #f4f4f4;
  position: relative;
  border-radius: 0.25em;
}
.artlst_main img{
  width: 100%;
}

@media only screen and (max-width: 768px) {
  .article_right .pd5-15 img {
 display: block;
 width: 100%;
  }

  ul.history_year,
  .con_box {
 width: 86%;
 box-sizing: border-box;
  }

  .titPc {
 display: none;
  }

  ul.history_list {
 padding: 20px 0;
  }
}

@media only screen and (max-width: 700px) {
  ul.history_year {
 display: none;
  }

  ul.history_list {
 padding: 20px 0;
  }
}

@media only screen and (max-width: 640px) {

  ul.history_year,
  .con_box {
 width: 84%;
  }
}

@media only screen and (max-width:560px) {

  ul.history_year,
  .con_box {
 width: 82%;
  }
}

@media only screen and (max-width:500px) {

  ul.history_year,
  .con_box {
 width: 80%;
  }
}

@media only screen and (max-width:435px) {

  ul.history_year,
  .con_box {
 width: 74%;
  }
}

@media only screen and (max-width:360px) {

  ul.history_year,
  .con_box {
 width: 70%;
  }
}