.scr {
  background-color: #fff;
  color: #666;
}
.scr-inner {
  margin: 0 1.1rem;
}
.scr-cicle {
  width: 4.2rem;
}
.scr-card-list {
  display: -webkit-flex;
  display: -ms-flexbox;
  display: flex;
  -webkit-flex-wrap: wrap;
      -ms-flex-wrap: wrap;
          flex-wrap: wrap;
  -webkit-justify-content: space-between;
      -ms-flex-pack: justify;
          justify-content: space-between;
}
.scr-card-item {
  display: block;
  width: 31%;
  color: #666;
}
.about-history {
  padding: 0.3rem 0;
}
@media (max-width: 1200px) {
  .scr-inner {
    width: 90%;
    margin: 0 auto;
  }
  .scr-cicle {
    width: 80%;
  }
  .scr-card-item {
    width: 48%;
  }
}