.about {
  height: 730px;
  margin-top: 90px;
  margin-bottom: 100px;
  text-align: left;
}
.about span {
  display: inline-block;
  width: 490px;
  height: 350px;
  padding-top: 30px;
}
.about span .tit_yel {
  margin: 10px 0 20px 0;
}
.about img {
  float: right;
  margin-top: 110px;
}
.qiye {
  text-align: center;
  margin-bottom: 120px;
}
.qiye .tit_yel {
  margin: 10px auto 60px;
}
.service {
  width: 100%;
  height: 612px;
  background: url(../../img/about/b11.png) no-repeat;
  margin-bottom: 100px;
}
.service .w {
  position: relative;
}
.service .box {
  position: absolute;
  top: 168px;
  right: 80px;
  color: #fff;
}
.service .box .b {
  margin: 10px 0 40px;
}
.service .box h4 {
  margin-bottom: 20px;
}
.address {
  text-align: center;
  margin-bottom: 120px;
}