.content {
  width: 7.5rem;
  height: auto;
  overflow: hidden;
  margin: 0 auto;
}

.w100 {
  width: 100%;
  height: auto;
  overflow: hidden;
  margin: 0 auto;
}

.w68 {
  width: 6.86rem;
  height: auto;
  overflow: hidden;
  margin: 0 auto;
}

.clear:after {
  content: '';
  display: block;
  clear: both;
}

.clear {
  zoom: 1;
}

.mr0 {
  margin-right: 0 !important;
}

* {
  box-sizing: border-box;
  -webkit-tap-highlight-color: rgba(255, 0, 0, 0);
}

.home-img {
  position: relative;
  height: 4.5rem;
}

.home-img img {
  display: block;
  width: 100%;
  height: auto;
}

.home-img .hd {
  position: absolute;
  bottom: .35rem;
  left: 50%;
  transform: translateX(-50%);
}

.home-img .hd ul {
  display: flex;
  justify-content: center;
}

.home-img .hd li {
  width: .2rem;
  height: .2rem;
  font-size: 0;
  border-radius: 50%;
  background: #fff;
  margin: 0 .05rem;
}

.home-img .hd li.on {
  background: #285bd4;
}

.demo-a {
  padding: .5rem 0;
}

.demo-a ul {
  width: 6.86rem;
  height: 4.6rem;
  margin: 0 auto;
  height: auto;
  background: url(1.png) no-repeat center top;
  background-size: 100% auto;
}

.demo-a ul li {
  float: left;
  width: 1.71rem;
  height: 2.1rem;
  text-align: center;
  padding-top: .4rem;
  font-size: 0.24rem;
  color: #333333;
  line-height: 1em;
  margin-bottom: 0;
  font-weight: 900;
  margin-bottom: .15rem;
}

.em-tab {
  margin: .1rem auto .7rem;
}

.em-tab .hd {
  margin-bottom: .4rem;
}

.em-tab .hd ul {
  width: 6.33rem;
  display: flex;
  height: .4rem;
  justify-content: space-between;
}

.em-tab .hd li {
  font-size: 0.26rem;
  color: #7983a9;
  line-height: 0.4rem;
  margin-bottom: 0;
}

.em-tab .hd li.on {
  font-size: 0.36rem;
  color: #333333;
  line-height: 0.4rem;
  margin-bottom: 0;
  font-weight: 900;
}

.em-tab .bd ul .div-top {
  margin-bottom: .5rem;
}

.em-tab .bd ul .div-top div {
  float: left;
  height: 1.2rem;
  width: 3.3rem;
  margin: 0 .2rem .2rem 0;
}

.em-tab .bd ul .div-top div a {
  display: block;
  width: 100%;
  height: 100%;
  font-size: 0.26rem;
  color: #fff;
  line-height: 1.2rem;
  margin-bottom: 0;
  padding-left: 1.3rem;
}

.em-tab .bd ul .div-top div:nth-child(even) {
  margin-right: 0;
}

.em-tab .bd ul .div-top div:nth-child(1) {
  background: url(2.png) no-repeat center;
  background-size: 100% auto;
}

.em-tab .bd ul .div-top div:nth-child(2) {
  background: url(3.png) no-repeat center;
  background-size: 100% auto;
}

.em-tab .bd ul .div-top div:nth-child(3) {
  background: url(4.png) no-repeat center;
  background-size: 100% auto;
}

.em-tab .bd ul .div-top div:nth-child(4) {
  background: url(5.png) no-repeat center;
  background-size: 100% auto;
}

.em-tab .bd ul > ul > h1 {
  font-size: 0.3rem;
  color: #1a1a1a;
  line-height: 1em;
  margin-bottom: 0.3rem;
}

.em-tab .bd ul > ul > h1 a {
  float: right;
  font-size: .24rem;
  color: #7983a9;
}

.em-tab .bd ul > ul > li {
  background: url(6.png) no-repeat left center;
  background-size: .17rem auto;
}

.em-tab .bd ul > ul > li a {
  width: 100%;
  display: block;
  font-size: 0.26rem;
  color: #666;
  line-height: 0.56rem;
  margin-bottom: 0;
  padding-left: .36rem;
  height: .56rem;
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
}

.about {
  padding-bottom: .7rem;
}

.about h1 {
  font-size: 0.3rem;
  color: #1a1a1a;
  line-height: 1em;
  margin-bottom: 0.3rem;
}

.about img {
  display: block;
  margin-bottom: .2rem;
}

.about p {
  font-size: 0.26rem;
  color: #555b72;
  line-height: 0.36rem;
  margin-bottom: 0.5rem;
}

.about a {
  display: block;
  width: 100%;
  height: .8rem;
  font-size: 0.26rem;
  color: #ffffff;
  line-height: 0.8rem;
  margin-bottom: 0;
  text-align: center;
  background: #285bd4;
}