.about-us {
  height: 310px;
  background: url(../img/xdy-index/about_us_bg.jpg);
  background-repeat: no-repeat;
  background-size: 100% 100%;
  -moz-background-size: 100% 100%;
}
.about-us-content {
  width: 9.1rem;
  height: 7.88rem;
  background: #ffffff;
  box-shadow: 0px 2px 6px 0px rgba(164, 164, 164, 0.5);
  margin: auto;
  position: relative;
  top: -100px;
  padding: 43px 83px 70px 70px;
}
.about-us-title {
  font-size: 0.18rem;
  font-family: PingFangSC-Medium;
  color: #333333;
  margin-bottom: 0.2rem;
}
.about-us-text {
  font-size: 0.14rem;
  font-family: PingFangSC-Regular;
  color: #999999;
  margin-bottom: 0.35rem;
  line-height: 0.28rem;
}