.banner {
  width: 100%;
  height: 600px;
  background: url('../images/banner.png') no-repeat center center / cover;
}
.download {
  padding: 95px 0 94px;
}
.produce-img {
  position: absolute;
  top: 0;
  left: -190px;
}
.download-right {
  margin-left: 439px;
}
.mulu {
  width: 100%;
  box-sizing: border-box;
  padding-top: 84px;
}
.mulu .wrap .muluInfoBox {
  width: 100%;
  display: flex;
  grid-gap: 78px;
  box-sizing: border-box;
}
.mulu .wrap .muluInfoBox .muluInfo {
  flex: 1;
  background-color: #f4f3f3;
  box-sizing: border-box;
  border-radius: 12px;
  padding: 24px 30px;
  transition: all 0.5s;
  cursor: default;
}
.mulu .wrap .muluInfoBox .muluInfo .icon {
  width: 60px;
  height: 60px;
  box-sizing: border-box;
  position: relative;
}
.mulu .wrap .muluInfoBox .muluInfo .icon img {
  position: absolute;
  top: 0;
  left: 0;
  opacity: 0;
  transition: opacity 0.5s;
}
.mulu .wrap .muluInfoBox .muluInfo .icon .aimg {
  opacity: 1;
}
.mulu .wrap .muluInfoBox .muluInfo .title {
  font-size: 25px;
  line-height: 40px;
  margin: 24px 0;
  font-weight: 900;
  color: #2d2d2d;
  transition: color 0.5s;
}
.mulu .wrap .muluInfoBox .muluInfo .desc {
  font-size: 14px;
  line-height: 24px;
  color: #2d2d2d;
  transition: color 0.5s;
}
.mulu .wrap .muluInfoBox .muluInfo:hover {
  background-color: #233c64;
}
.mulu .wrap .muluInfoBox .muluInfo:hover .icon .aimg {
  opacity: 0;
}
.mulu .wrap .muluInfoBox .muluInfo:hover .icon .img {
  opacity: 1;
}
.mulu .wrap .muluInfoBox .muluInfo:hover .title {
  color: #fff;
}
.mulu .wrap .muluInfoBox .muluInfo:hover .desc {
  color: #fff;
}
.download-title {
  margin-bottom: 51px;
}
.download-title-text {
  margin-bottom: 20px;
  font-family: SourceHanSansCN-Bold;
  font-size: 26px;
  font-weight: bold;
  font-stretch: normal;
  line-height: 1;
  letter-spacing: 0px;
  color: #333333;
}
.download-content {
  margin-bottom: 47px;
  font-family: SourceHanSansCN-Light;
  font-size: 18px;
  font-weight: normal;
  font-stretch: normal;
  line-height: 30px;
  letter-spacing: 0px;
  color: #666666;
}
.intro {
  padding: 91px 0 90px;
  background-color: #000000;
}
.intro p {
  margin-bottom: 10px;
  font-family: SourceHanSansCN-Light;
  font-size: 18px;
  font-weight: normal;
  font-stretch: normal;
  line-height: 30px;
  letter-spacing: 0px;
  color: #ffffff;
  text-align: justify;
  text-indent: 2em;
}
.intro-title {
  display: block;
  margin: 0 auto;
  margin-bottom: 49px;
}