* {
  margin: 0;
  padding: 0;
  text-shadow: none;
  box-sizing: content-box;
  -webkit-box-sizing: content-box;
  text-decoration: none;
  -webkit-tap-highlight-color: transparent;
  text-decoration: none;
  -webkit-tap-highlight-color: transparent;
  -webkit-touch-callout: none;
  -webkit-user-select: none;
  -webkit-tap-highlight-color: rgba(255, 0, 0, 0);
}

p {
  margin: 0;
}

body {
  font-family: "Microsoft YaHei", "微软雅黑";
  padding: 0;
  margin: 0;
  background-color: #e5e5e5;
}

b,
h1,
h2,
h3,
h4,
h5,
h6,
strong {
  font-weight: normal;
  padding: 0;
  margin: 0;
}

i,
em {
  font-style: normal;
}

ul,
ol,
li {
  list-style: none
}

img {
  border: 0;
  vertical-align: middle
}

a {
  text-decoration: none;
  color: #000;
}

a img {
  display: block;
  border: none;
}

a:hover,
a:active {
  outline: none;
  text-decoration: none;
}

a:focus {
  text-decoration: none;
  outline: none
}
.fl {
  float: left;
}

.fr {
  float: right;
}

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

.clearfix {
  zoom: 1;
}
html, body {
  margin: 0;
  padding: 0;
  font-family: PingFangSC-Semibold;
}
ul li {
  list-style-type: none;
}
a{
  text-decoration: none;
  cursor: pointer;
}
body{
  background-color: #fff;
}
.main{
  width: 100%;
  padding-bottom: 150px;
  position: relative;
  overflow: hidden;
}
.main .header{
  background-image: url("../images/bannerbg.png");
  background-repeat: no-repeat;
  background-size: contain;
  background-position: center top;
  width: 100%;
  min-height: 450px;
  padding: 0 2.5%;
  background-size: 100% 100%;
  overflow: hidden;
  margin: 0px auto;
  position: relative;
  box-sizing: border-box;
}
.main .header .logo {
  margin-top: 90px;
  font-size: 42px;
  color: #FFFFFF;
  letter-spacing: 8.17px;
  display: flex;
  line-height: 78px;
  justify-self: start;
}
.main .header .logo img{
  width: 78px;
  height: 78px;
}
.main .header .logo p{
  margin-left: 23px;
}
.main .header .header_ul{
  margin-top: 74px;
  display: flex;
  justify-content: space-between;
}
.main .header .btn_group{
  width: 50%;
  position: relative;
  display: flex;
  justify-content: space-between;
}
.main .header .download_btn{
  bottom: 0px;
  position: absolute;
  width: 271px;
  height: 60px;
  line-height: 60px;
  text-align: center;
  background: #3F5DD2;
  border-radius: 30px;
  display: inline-block;
  font-family: PingFangSC-Medium;
  font-size: 24px;
  color: #FFFFFF;
  letter-spacing: 0;
}
.download_btn.btn1{
  right: 310px;
}
.main .header .download_btn.btn2{
  width: 299px;
  right: 0px;
}
.main .header .download_btn img{
  width: 34px;
  height: 34px;
  display: inline-block;
  margin-right: 7px;
}
.header .title{
  font-size: 42px;
  color: #FFFFFF;
  letter-spacing: 2.33px;
  display: block;
  font-family: PingFangSC-Semibold;
}
.header .desc{
  font-size: 26px;
  color: #FFFFFF;
  letter-spacing: 1.44px;
  display: block;
  margin-top: 20px;
  font-family: PingFangSC-Regular;
  white-space: nowrap;
  text-overflow: ellipsis;
  overflow: hidden;
  word-break: break-all;
}
@media screen and (max-width:1400px) {
  .main .header{
    background-image: url("../images/bannerbg.png");
    background-repeat: no-repeat;
    background-size: contain;
    background-position: center top;
    width: 100%;
    min-height: 450px;
    padding: 0 1.5%;
    background-size: 100% 100%;
    overflow: hidden;
    margin: 0px auto;
    position: relative;
    box-sizing: border-box;
  }
  .main .header .logo {
    margin-top: 90px;
    font-size: 42px;
    color: #FFFFFF;
    letter-spacing: 8.17px;
    display: flex;
    line-height: 78px;
    justify-self: start;
  }
  .main .header .logo img{
    width: 78px;
    height: 78px;
  }
  .main .header .logo p{
    margin-left: 23px;
  }
  .main .header .header_ul{
    margin-top: 74px;
    display: flex;
    justify-content: space-between;
  }
  .main .header .btn_group{
    width: 50%;
    position: relative;
    display: flex;
    justify-content: space-between;
  }
  .main .header .download_btn{
    bottom: 0px;
    position: absolute;
    width: 250px;
    height: 50px;
    line-height: 50px;
    text-align: center;
    background: #3F5DD2;
    border-radius: 30px;
    display: inline-block;
    font-family: PingFangSC-Medium;
    font-size: 22px;
    color: #FFFFFF;
    letter-spacing: 0;
  }
  .download_btn.btn1{
    right: 280px;
  }
  .main .header .download_btn.btn2{
    width: 270px;
    right: 0px;
  }
  .main .header .download_btn img{
    width: 34px;
    height: 34px;
    display: inline-block;
    margin-right: 7px;
  }
  .header .title{
    font-size: 42px;
    color: #FFFFFF;
    letter-spacing: 2.33px;
    display: block;
    font-family: PingFangSC-Semibold;
  }
  .header .desc{
    font-size: 25px;
    color: #FFFFFF;
    letter-spacing: 1.44px;
    display: block;
    margin-top: 20px;
    font-family: PingFangSC-Regular;
    white-space: nowrap;
    text-overflow: ellipsis;
    overflow: hidden;
    word-break: break-all;
  }
}

@media screen and (max-width:1250px) {
  .main .header{
    background-image: url("../images/bannerbg.png");
    background-repeat: no-repeat;
    background-size: contain;
    background-position: center top;
    width: 100%;
    min-height: 450px;
    padding: 0 0.5%;
    background-size: 100% 100%;
    overflow: hidden;
    margin: 0px auto;
    position: relative;
    box-sizing: border-box;
  }
  .main .header .logo {
    margin-top: 90px;
    font-size: 42px;
    color: #FFFFFF;
    letter-spacing: 8.17px;
    display: flex;
    line-height: 78px;
    justify-self: start;
  }
  .main .header .logo img{
    width: 78px;
    height: 78px;
  }
  .main .header .logo p{
    margin-left: 23px;
  }
  .main .header .header_ul{
    margin-top: 74px;
    display: flex;
    justify-content: space-between;
  }
  .main .header .btn_group{
    width: 50%;
    position: relative;
    display: flex;
    justify-content: space-between;
  }
  .main .header .download_btn{
    bottom: 0px;
    position: absolute;
    width: 250px;
    height: 50px;
    line-height: 50px;
    text-align: center;
    background: #3F5DD2;
    border-radius: 30px;
    display: inline-block;
    font-family: PingFangSC-Medium;
    font-size: 22px;
    color: #FFFFFF;
    letter-spacing: 0;
  }
  .download_btn.btn1{
    right: 280px;
  }
  .main .header .download_btn.btn2{
    width: 270px;
    right: 0px;
  }
  .main .header .download_btn img{
    width: 34px;
    height: 34px;
    display: inline-block;
    margin-right: 7px;
  }
  .header .title{
    font-size: 42px;
    color: #FFFFFF;
    letter-spacing: 2.33px;
    display: block;
    font-family: PingFangSC-Semibold;
  }
  .header .desc{
    font-size: 24px;
    color: #FFFFFF;
    letter-spacing: 1.44px;
    display: block;
    margin-top: 20px;
    font-family: PingFangSC-Regular;
    white-space: nowrap;
    text-overflow: ellipsis;
    overflow: hidden;
    word-break: break-all;
  }
}
.main .content{
  width: 100%;
  margin-top: 100px;
}
.main .content .btn_ul{
  width: 80%;
  margin: 30px auto;
  display: flex;
  justify-content: space-around;
}
.main .content .btn_ul li{
  display: block;
  cursor: pointer;
}
.main .content .btn_ul li a{
  display: block;
  border-radius:50% ;
  width: 176px;
  height: 176px;
  text-align: center;
  background-color: #EAECF0;
  background-position: center center;
  background-repeat: no-repeat;
}
.main .content .btn_ul .title{
  font-size: 24px;
  color: #323232;
  letter-spacing: 0;
  text-align: center;
  margin: 20px 0px 10px 0px;
  font-family: PingFangSC-Semibold;
  font-size: 24px;
  color: #0A3AAA;
  letter-spacing: 0;
  text-align: center;
}
.main .content .btn_ul .desc{
  font-size: 20px;
  color: #616161;
  letter-spacing: 0;
  text-align: center;
  margin-top: 10px;
  font-family: PingFangSC-Semibold;
}
.main .content .btn_ul li a.btn1,.main .content .btn_ul li a.btn2,
.main .content .btn_ul li a.btn3,.main .content .btn_ul li a.btn4,.main .content .btn_ul li a.btn5{
  display: block;
  width: 176px;
  height: 176px;
  text-align: center;
  position: relative;
  border-radius:inherit;
  background-repeat: no-repeat;
  background-color: inherit;
  /* transition: all .4s; */
}
.main .content ul li .btn10,.main .content ul li .btn20,
.main .content ul li .btn30,.main .content ul li .btn40, .main .content ul li .btn50{
  display: block;
  border-radius:50% ;
  width: 176px;
  height: 176px;
  text-align: center;
  background-color: #EAECF0;
  background-position: center center;
  background-repeat: no-repeat;
  opacity: 1;
}
.main .content ul li .btn11,.main .content ul li .btn21{
  display: block;
  width: 100%;
  height: 100%;
  background-repeat: no-repeat;
  background-position: center center;
  background-size: 100% 100%;
  position: absolute;
  left: 0;
  top: 0;
  transform:scale(1.333,1.333);
  opacity: 0;
  border: none;
}
.main .content ul li .btn31,.main .content ul li .btn41 {
  display: block;
  width: 100%;
  height: 100%;
  background-repeat: no-repeat;
  background-position: center center;
  /* background-size: 100% 100%; */
  position: absolute;
  left: 0;
  top: 0;
  transform:scale(1.333,1.333);
  opacity: 0;
  border: none;
}
.main .content ul li .btn31,.main .content ul li .btn41,.main .content ul li .btn51{
  display: block;
  width: 100%;
  height: 100%;
  background-repeat: no-repeat;
  background-position: center center;
  position: absolute;
  left: 0;
  top: 0;
  transform:scale(1.333,1.333);
  opacity: 0;
  border: none;
  background-color: #EAECF0;
  border-radius:50% ;
  line-height: 176px;
  color: #8B90A1;
  font-size: 24px;
  letter-spacing: 1.33px;
  text-align: center;
}
.main .content ul li .btn10{
  background-image: url("../images/android.png");
}
.main .content ul li .btn11 {
  background-image: url("../images/andriodewm.jpg");
}
.main .content ul li.btn01:hover .btn10,.main .content ul li.btn02:hover .btn20,
.main .content ul li.btn03:hover .btn30,.main .content ul li.btn04:hover .btn40,
.main .content ul li.btn05:hover .btn50{
  opacity: 0;
  transform:scaleX(0.8,0.8);
  transition: all 0.4s;
}
.main .content ul li.btn01:hover .btn11,.main .content ul li.btn02:hover .btn21,
.main .content ul li.btn03:hover .btn31,.main .content ul li.btn04:hover .btn41,
.main .content ul li.btn05:hover .btn51{
  opacity: 1;
  transform:scaleX(1);
  transition: all 0.4s;
}
.main .content ul li .btn20 {
  background-image: url("../images/ios.png");
}
.main .content ul li .btn21 {
  background-image: url("../images/andriodewm.jpg");
}
.main .content ul li .btn30 {
  background-image: url("../images/windows.png");
}
.main .content ul li .btn31,.main .content ul li .btn41 {
  background-image: url("../images/downicon.png");
}
.main .content ul li .btn40 {
  background-image: url("../images/mac.png");
}
.main .content ul li .btn50 {
  background-image: url("../images/techinno.png");
}
.main .bottom{
  width: 100%;
  position: absolute;
  bottom: 0px;
  height: 60px;
  line-height: 60px;
  background: #E8E8E8;
  font-family: PingFangSC-Regular;
  font-size: 18px;
  color: #656565;
  text-align: center;
}
.main .bottom span{
  color: #3E96FF;
}