.engine-into-box:nth-child(odd) {
  background-color: #f0f2f4;
}
.sub-engine-into {
  padding-top: 50px;
  padding-bottom: 50px;
}
@media (min-width: 769px) {
  .sub-engine-into {
    padding-top: 100px;
    padding-bottom: 100px;
  }
}
.sub-engine-into .sub-engine-into_head {
  display: flex;
  justify-content: center;
  align-items: center;
}
.sub-engine-into .sub-engine-into_head .en_icon {
  width: 100px;
}
@media (min-width: 769px) {
  .sub-engine-into .sub-engine-into_head .en_icon {
    width: 200px;
  }
}
.sub-engine-into .sub-engine-into_head .title {
  font-size: 22px;
  color: #333;
  margin: 0 10px;
}
@media (min-width: 769px) {
  .sub-engine-into .sub-engine-into_head .title {
    margin: 0 25px;
    font-size: 36px;
  }
}
.sub-engine-into .sub-engine-into_body  {
  color: #444;
  font-size: 16px;
  margin: 25px 0;
  line-height: 25px;
}
@media (min-width: 769px) {
  .sub-engine-into .sub-engine-into_body  {
    margin: 50px 0;
    font-size: 18px;
    line-height: 30px;
  }
}
.sub-engine-into .sub-engine-into_body .text {
  font-size: 18px;
}
@media (min-width: 769px) {
  .sub-engine-into .sub-engine-into_body .text {
    font-size: 24px;
  }
}
.sub-engine-into .sub-engine-into_body img {
  max-width: 100%;
}