.main_item {
  padding-top: 64px;
  padding-bottom: 51px;
}
.main_item:first-child {
  padding-top: 0;
}
.main_item_img {
  width: 77px;
  height: 67px;
  margin-right: 55px;
}
.main_item_title {
  height: 22px;
  line-height: 22px;
  font-size: 22px;
  font-family: Microsoft YaHei;
  font-weight: 400;
  color: #394e69;
  margin-bottom: 22px;
  overflow: hidden;
}
.main_item_content {
  line-height: 30px;
  height: 60px;
  overflow: hidden;
}
@media (max-width: 819px) {
  .main_item {
    padding-top: 35px;
    padding-bottom: 25px;
  }
  .main_item_img {
    margin-right: 20px;
  }
  .main_item_title {
    margin-bottom: 15px;
  }
  .main_item_content {
    line-height: 22px;
    height: 66px;
  }
}