.item_text_box {
  margin: 0 auto;
  padding: 70px 0px;
  width: 90%;
  max-width: 1200px;
}
.item_text_box .item_pro_text_3 {
  margin: 0 auto;
  width: 80%;
  color: rgba(0, 0, 0, 0.65);
  font-size: 22px;
  font-weight: 600;
  line-height: 42px;
  text-align: center;
}
@media screen and (max-width: 960px) {
  .item_text_box{
    width: 100%;
    padding: 70px 20px;
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    box-sizing: border-box;
  }
  .item_text_box .item_pro_text_3 {
    width: 100%;
    padding: 0 17px;
    font-size: 18px;
    line-height: 36px;
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    box-sizing: border-box;
  }
}
@media screen and (max-width: 750px) {
  .item_text_box{
    padding: 70px 15px;
 
  }
}