.main {
  background: #fff;
}
.main .wrap {
  width: 1200px;
  margin: 0 auto;
}
.banner {
  height: 540px;
  background: url(../images/banner_0423.png) no-repeat center;
}
.download .wrap {
  position: relative;
  box-sizing: border-box;
  padding: 75px 0 75px 405px;
  font-size: 0;
}
.download .wrap .book {
  position: absolute;
  left: -80px;
  top: 65px;
  width: 445px;
}
.download .wrap h3 {
  position: relative;
  display: inline-block;
  font-size: 48px;
  color: #000;
  margin-bottom: 0px;
}
.download .wrap h3 > i {
  position: absolute;
  right: -68px;
  bottom: 21px;
  width: 50px;
  height: 9px;
  background: url(../images/title_i.png) no-repeat center;
}
.download .wrap h4 {
  font-size: 36px;
  color: #fff;
  text-transform: uppercase;
  letter-spacing: 1px;
  opacity: 0.15;
  margin-bottom: 40px;
  text-shadow: 1px 0 #000, -1px 0 #000, 0 1px #000, 0 -1px #000, 1px 1px #000, -1px -1px #000, 1px -1px #000, -1px 1px #000;
}
.download .wrap h5 {
  font-size: 24px;
  color: #333;
  text-indent: -10px;
  margin-bottom: 12px;
}
.download .wrap p {
  font-size: 18px;
  color: #666;
  line-height: 1.5em;
  margin-bottom: 10px;
}
.download .wrap > a {
  display: block;
  width: 202px;
  height: 41px;
  margin-top: 25px;
  background: url(../images/btn.png) no-repeat center;
}
.intro {
  padding: 90px 0;
  background: #000;
}
.intro img {
  display: block;
  width: 379px;
  margin: 0 auto 40px;
}
.intro p {
  font-family: SourceHanSansCN-Light;
  font-size: 18px;
  color: #fff;
  line-height: 30px;
  text-align: justify;
  text-indent: 2em;
  margin-bottom: 10px;
}
.intro p:last-child {
  margin-bottom: 0;
}