#intro {
  padding: 0 0.4rem 0.4rem;
  background: #fff;
}
.intro-title {
  height: 1.04rem;
  line-height: 1.04rem;
}
.intro-title span {
  color: #111;
  font-size: 0.34rem;
  line-height: inherit;
  float: left;
  font-weight: bold;
}
.intro-title b {
  color: #666;
  font-size: 0.28rem;
  line-height: inherit;
  float: right;
  font-weight: normal;
}
.intro-title b u {
  text-decoration: none;
  display: none;
}
.intro-title b u.explode {
  display: inline-block;
}
.intro-title b:after {
  margin-left: 0.12rem;
  content: '';
  display: inline-block;
  height: 0.14rem;
  width: 0.14rem;
  position: relative;
  top: -0.06rem;
  -webkit-transform: rotate(135deg);
  -moz-transform: rotate(135deg);
  -ms-transform: rotate(135deg);
  -o-transform: rotate(135deg);
  transform: rotate(135deg);
  border-top: 0.04rem solid #999;
  border-right: 0.04rem solid #999;
}
.intro-title b.fold u {
  display: none;
}
.intro-title b.fold u.fold {
  display: inline-block;
}
.intro-title b.fold:after {
  top: 0;
  -webkit-transform: rotate(-45deg);
  -moz-transform: rotate(-45deg);
  -ms-transform: rotate(-45deg);
  -o-transform: rotate(-45deg);
  transform: rotate(-45deg);
}
#about-us img {
  width: 100%;
  margin-bottom: 0.24rem;
  display: block;
}
#about-us p {
  color: #333;
  font-size: 0.28rem;
  line-height: 0.4rem;
  padding-bottom: 0.08rem;
}
#about-us p.text_overflow {
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 10;
  overflow: hidden;
  height: 4rem;
}
.environment-certificate {
  width: calc(100.1%);
  margin-left: -0.1rem;
}
.environment-certificate.overflow {
  height: 4.8rem;
  overflow: hidden;
}
.environment-certificate li {
  float: left;
  width: calc(49.9%);
  margin-left: 0.1rem;
  border: 1px solid #f0f0f0;
  margin-bottom: 0.1rem;
  height: 2.30rem;
  position: relative;
}
.environment-certificate li img {
  width: 100%;
  position: absolute;
  top: 50%;
  left: 50%;
  -webkit-transform: translate(-50%, -50%);
  -moz-transform: translate(-50%, -50%);
  -ms-transform: translate(-50%, -50%);
  -o-transform: translate(-50%, -50%);
  transform: translate(-50%, -50%);
}
#connect-us {
  width: 100%;
  padding: 0.32rem;
  height: 3.08rem;
  background: linear-gradient(135deg, #4098ff 0%, #005ede 100%);
  -webkit-box-shadow: 0px 2px 10px 0px rgba(0, 0, 0, 0.1);
  -moz-box-shadow: 0px 2px 10px 0px rgba(0, 0, 0, 0.1);
  box-shadow: 0px 2px 10px 0px rgba(0, 0, 0, 0.1);
  -webkit-border-radius: 6px;
  -moz-border-radius: 6px;
  border-radius: 6px;
  font-size: 0.28rem;
  font-family: PingFang-SC-Regular;
  font-weight: 400;
  color: #ffffff;
  line-height: 0.4rem;
}
#connect-us span {
  line-height: 0.4rem;
}
#connect-us p {
  margin-bottom: 0.1rem;
}
#connect-us p .content {
  padding-left: 1.4rem;
  display: block;
}