.about {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  padding: 100rem 0;
}
.about .box-title,
.about .box-desc {
  text-align: left;
}
.about .article-desc {
  line-height: 30rem;
  font-size: 16rem;
  margin-top: 53rem;
}
.about-image {
  margin-left: 60rem;
}
.about .data {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-pack: center;
      -ms-flex-pack: center;
          justify-content: center;
  text-align: center;
  margin-top: 53rem;
}
.about .data-item + .data-item {
  margin-left: 120rem;
}
.about .data-num {
  font-size: 36rem;
  font-weight: bold;
  color: #138db1;
}
.about .data-num span {
  font-size: 18rem;
  font-weight: 400;
}
.about .data-title {
  font-size: 16rem;
  margin-top: 17rem;
}

@media screen and (max-width: 1200px) {
  .about {
    display: block;
    padding: 30rem 0;
  }
  .about .article-desc {
    margin-top: 15rem;
  }
  .about-image {
    width: 100%;
    margin-left: 0;
    margin-top: 20rem;
  }
  .about .data {
    -ms-flex-pack: distribute;
        justify-content: space-around;
    margin-top: 15rem;
  }
  .about .data-item + .data-item {
    margin-left: 0;
  }
}
.box .box-content {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 60rem;
  margin-top: 60rem;
}
.box-item {
  position: relative;
  text-align: center;
  color: white;
}
.box-item-title {
  font-size: 36rem;
  font-weight: bold;
  margin-top: -52rem;
  -webkit-transition: margin-top 0.3s ease-out;
  transition: margin-top 0.3s ease-out;
}
.box-item-desc {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
      -ms-flex-align: center;
          align-items: center;
  -webkit-box-pack: center;
      -ms-flex-pack: center;
          justify-content: center;
  font-size: 16rem;
  height: 60rem;
  line-height: 24rem;
  margin-top: 16rem;
}
.box-item:hover .box-item-title {
  margin-top: 0;
}
.box-item:hover .box-mark {
  top: 0;
}
.box-image {
  width: 100%;
}
.box-mark {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
      -ms-flex-align: center;
          align-items: center;
  -webkit-box-pack: center;
      -ms-flex-pack: center;
          justify-content: center;
  -webkit-box-orient: vertical;
  -webkit-box-direction: normal;
      -ms-flex-direction: column;
          flex-direction: column;
  position: absolute;
  top: calc(100% - 60rem);
  left: 0;
  right: 0;
  bottom: 0;
  overflow: hidden;
  background-color: rgba(0, 0, 0, 0.4);
  -webkit-transition: top 0.3s ease-out;
  transition: top 0.3s ease-out;
}

@media screen and (max-width: 1200px) {
  .box .box-content {
    display: grid;
    grid-template-columns: repeat(1, 1fr);
    gap: 20rem;
    margin-top: 20rem;
  }
}