.banner_width {
  background: #ffffff;
}
.second_text {
  text-align: center;
  height: 50px;
  font-size: 28px;
  font-family: PingFangSC-Semibold, PingFang SC;
  font-weight: 600;
  color: #222222;
  line-height: 50px;
}
.second_content {
  margin: 90px auto 60px auto !important;
  display: flex;
  justify-content: center;
  align-items: center;
  flex-direction: column;
}
.second_content_bottom {
  margin-top: 40px;
  height: 427px;
  font-size: 18px;
  font-family: PingFangSC-Regular, PingFang SC;
  font-weight: 400;
  color: #333333;
  line-height: 32px;
  letter-spacing: 1px;
}
.banner_width {
  width: 100%;
  height: 320px;
  background: #ffffff;
  background-image: url(../img/shengtai/shengtai.png);
  margin-top: 10px;
}
.banner_width_bottom_text {
  font-size: 40px;
  font-family: PingFangSC-Regular, PingFang SC;
  font-weight: 400;
  color: #ffffff;
  line-height: 56px;
}
.banner_bottom {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 400px;
  padding-bottom: 70px;
}
.banner_width_bottom {
  text-align: center;
  width: 875px;
  height: 22px;
  font-size: 16px;
  font-family: PingFangSC-Regular, PingFang SC;
  font-weight: 400;
  color: #ffffff;
  line-height: 22px;
}
.st_third_content {
  display: flex;
  justify-content: center;
  margin-top: 58px;
}
.st_third_left {
  background-image: url('../img/shengtai/zongbao.png');
  background-repeat: no-repeat;
  background-size: cover;
  width: 411.11px;
  height: 233.33px;
  padding-left: 47px;
  padding-top: 27px;
  transition: width 1s;
  -moz-transition: width 1s; /* Firefox 4 */
  -webkit-transition: width 1s; /* Safari and Chrome */
  -o-transition: width 1s; /* Opera */
}
.st_third_right {
  background-image: url('../img/shengtai/zengliang.png');
  background-repeat: no-repeat;
  background-size: cover;
  width: 588.89px;
  height: 234.44px;
  padding-left: 47px;
  padding-top: 27px;
  color: white;
  transition: width 1s;
  -moz-transition: width 1s; /* Firefox 4 */
  -webkit-transition: width 1s; /* Safari and Chrome */
  -o-transition: width 1s; /* Opera */
}
.st_third_left_second {
  height: 27px;
  font-size: 16px;
  font-family: PingFangSC-Semibold, PingFang SC;
  font-weight: 600;
  color: #222222;
  line-height: 27px;
}
.st_third_left_third {
  width: 490px;
  height: 60px;
  font-size: 12px;
  font-family: PingFangSC-Regular, PingFang SC;
  font-weight: 400;
  color: #222222;
  line-height: 20px;
}
.sttlt_2 {
  width: 352px;
}
.st_fourth_content {
  display: flex;
  justify-content: center;
  flex-direction: column;
  align-items: center;
  margin: 90px auto 0 auto !important;
}
.st_fourth_bottom {
  display: flex;
  justify-content: center;
  margin-bottom: 140px;
}
.st_fourth_bottom_text {
  width: 491px;
  margin-top: 80px;
  font-size: 12px;
  font-family: PingFangSC-Regular, PingFang SC;
  font-weight: 400;
  color: #222222;
  line-height: 30px;
}