* {
  padding: 0px;
  margin: 0px;
}
.clearfix:after {
  content: ".";
  display: block;
  height: 0;
  font-size: 0;
  clear: both;
  visibility: hidden;
}
.clearfix {
  zoom: 1;
}
.down-box {
  width: 100%;
  background: url(../apple/images/lirenbg.jpg) no-repeat center center;
  -moz-background-size: cover;
  -webkit-background-size: cover;
  -o-background-size: cover;
  -ms-background-size: cover;
  background-size: cover;
}
.down-box .down-main {
  color: #ffffff;
  margin: 0 auto;
  width: 38%;
  padding: 60px 0px 100px;
}
.down-box .down-main h1 {
  font-size: 40px;
  line-height: 2;
}
.down-box .down-main h3 {
  font-size: 20px;
  line-height: 1.6;
}
.down-box .down-main .down-icon {
  overflow: hidden;
  margin: 35px 0px 0px;
}
.down-box .down-main .down-icon .platform-icon {
  position: relative;
  display: inline-block;
  width: 180px;
  float: left;
}
.down-box .down-main .down-icon .platform-icon a {
  display: block;
  left: 0;
}
.down-box .down-main .down-icon .platform-icon a img {
  width: 70%;
}
.down-box .down-main .down-icon .platform-icon a:first-child {
  margin-bottom: 72px;
}
.down-box .down-main .ercode {
  display: block;
  float: left;
}
.down-box .down-main .ercode img {
  width: 150px;
  max-width: 200px;
}
@media only screen and (max-width: 1920px) {
  .down-box .down-main {
    width: 30%;
  }
}
@media only screen and (max-width: 1024px) {
  .down-box .down-main {
    width: 39%;
  }
}
@media only screen and (max-width: 860px) {
  .down-box .down-main {
    width: 46%;
  }
}