@media screen and (max-width:720px){
     .main{
   			 margin-top:0px; 
   }
   #home_des{
    width: 100%;
    /* height: 620px; */
    /* width: 100%; */
    min-height: 30vh;
    /* background: url(web/img/banner@2x.png) no-repeat 0px; */
    /* background-position: bottom; */
    /* background-size: cover; */
    /* background-position: center center; */
    /* background-size: cover;*/
}
.app_img {
     width: 50%;
    float: left;
    margin-left: 3%;
    margin-top: 2%;
}
.video_img {
    width: 100%;
}
.video_img {
     margin-top: 5rem;
    /* width: 50%; */
   /* margin-left: 5%;*/
    /* height: 100px; */
    /* background: #FFE1CF; */
    /* border-radius: 5px; */
    /* position: relative;*/
}
.video_img img{
    width: 50px;
    margin-left: 5%;
}
.android_txt {
    font-size: 12px;
    font-family: PingFang SC, PingFang SC-Bold;
    color: #ffffff;
    margin-top: 100px;
}
.android_icon {
    width: 18px;
    height: 21px;
    margin-right: 10px;
    position: relative;
    margin-bottom: -5px;
}
#ad_des{
    text-align: center;
    font-family: AliHYAiHei-Beta;
    font-weight: bold;
    color: #181C1F;
    margin-top: 2rem;
}
#home_buttom{
      float: right;
    right: 10px;
    /* margin-left: 1rem; */
        margin-top: 4.6rem;
    position: absolute;
    /* width: 100%; */
    /* left: 28%;*/
}
.el-button.is-round {
         border-radius: 20px;
    padding: 10px 12px 10px 10px;
    width: 4rem;
    /* width: 320px; */
    /* height: 90px; */
    /* line-height: 20px; */
    background: #181C1F;
    border-radius: 6px;
}
.el-button{
     font-size: 9px;
    font-family: Arial, Arial-Bold;
    font-weight: 700;
    text-align: center;
    color: #444444;
     margin-right: 0.5rem;
    padding: 6px 10px;
    background: #ff8024;
}
#learn_more{
    /*background: url(../img/web_bg1@2x.png) no-repeat 0px;*/
  background-position: 100%;
    background-size: contain;
    height:100%;
   
}
.learn1{
      

}
.learn1 p:first-child{
	 height: 16px;
    font-size: 17px;
    font-family: Arial, Arial-Bold;
    font-weight: 700;
    text-align: center;
    color: #555555;
    padding-top: 20px;
}
.learn1 p:nth-child(2){
	margin: 0px 1rem;
    font-size: 13px;
    font-family: Arial, Arial-Regular;
    font-weight: 400;
    text-align: left;
    color: #555555;
}
.learn1 p:nth-child(3) {
	margin: 0px 1rem;
    height: 12px;
    font-size: 13px;
    font-family: Arial, Arial-Regular;
    font-weight: 400;
    text-align: left;
    color: #555555;
}
#learn1_img{
     background: url(../img/bg_web_img2.png) no-repeat 0; 
     background-position: center; 
     background-size: contain; 
     height: 306px; 
     margin-top: 3rem;
     animation: rotate 60s infinite linear;
     width: 70%;
     margin-left: 15%;
     overflow-x: hidden;
}
.learn2{
    margin-top: 3rem;
    background: url(../img/bg_web_img3.png) no-repeat 0;
    background-position: 100%;
    background-size: 50% 70%;
    height: 436px;
    width: 100%;
}
.learn2 p:first-child{
   position: absolute;
    max-width: 200px;
    height: 16px;
    font-size: 17px;
    font-family: Arial, Arial-Bold;
    font-weight: 700;
    text-align: left;
    color: #555555;
    left: 5%;
    margin-top: 5rem;
}
.learn2 p:nth-child(2){
              position: absolute;
    width: 130px;
    height: 12px;
    font-size: 13px;
    font-family: Arial, Arial-Regular;
    font-weight: 400;
    text-align: left;
    color: #555555;
    left: 5%;
    margin-top: 10rem;
}
.learn2 p:nth-child(3){
              position: absolute;
    width: 130px;
    height: 12px;
    font-size: 13px;
    font-family: Arial, Arial-Regular;
    font-weight: 400;
    text-align: left;
    color: #555555;
    left: 5%;
    margin-top: 12rem;
}
.learn3{
           /* margin-top: -10rem; */
    background: url(../img/bg_web_img44.png) no-repeat 0;
    background-position: 0%;
    background-size: 50% 70%;
    height: 436px;
    width: 100%;
}
.learn3 p:first-child{
          position: absolute;
    max-width: 200px;
    height: 16px;
    font-size: 17px;
    font-family: Arial, Arial-Bold;
    font-weight: 700;
    /* text-align: left; */
    color: #555555;
    /* right: 0%; */
    margin-left: 57%;
    margin-top: 5rem;
}
.learn3 p:nth-child(2){
       position: absolute;
    width: 130px;
    height: 12px;
    font-size: 13px;
    font-family: Arial, Arial-Regular;
    font-weight: 400;
    /* text-align: left; */
    color: #555555;
    left: 57%;
    margin-top: 10rem;
}
.learn3 p:nth-child(3){
       position: absolute;
    width: 130px;
    height: 12px;
    font-size: 13px;
    font-family: Arial, Arial-Regular;
    font-weight: 400;
    /* text-align: left; */
    color: #555555;
    left: 57%;
    margin-top: 12rem;
}
.learn3-1{
           /* margin-top: -10rem; */
    background: url(../img/bg_web_img9.png) no-repeat 0;
    background-position: 0%;
    background-size: 50% 70%;
    height: 436px;
    width: 100%;
}
.learn3-1 p:first-child{
          position: absolute;
    max-width: 200px;
    height: 16px;
    font-size: 17px;
    font-family: Arial, Arial-Bold;
    font-weight: 700;
    /* text-align: left; */
    color: #555555;
    /* right: 0%; */
    margin-left: 57%;
    margin-top: 5rem;
}
.learn3-1 p:nth-child(2){
       position: absolute;
    width: 130px;
    height: 12px;
    font-size: 13px;
    font-family: Arial, Arial-Regular;
    font-weight: 400;
    /* text-align: left; */
    color: #555555;
    left: 57%;
    margin-top: 10rem;
}
.learn3-1 p:nth-child(3){
       position: absolute;
    width: 130px;
    height: 12px;
    font-size: 13px;
    font-family: Arial, Arial-Regular;
    font-weight: 400;
    /* text-align: left; */
    color: #555555;
    left: 57%;
    margin-top: 12rem;
}
.p_font{
       position: absolute;
    width: 350px;
    height: 16px;
    font-size: 17px;
    font-family: Arial, Arial-Bold;
    font-weight: 700;
    text-align: left;
    color: #555555;
    right: 0%;
}
.learn4{
   /* margin-top: -10rem;*/
    background: url(../img/bg_web_img5.png) no-repeat 0;
    background-position: 100%;
    background-size: 50% 70%;
    height: 436px;
    width: 100%;
}
.learn4 p:first-child{
   position: absolute;
    max-width: 150px;
    height: 16px;
    font-size: 17px;
    font-family: Arial, Arial-Bold;
    font-weight: 700;
    text-align: left;
    color: #555555;
    left: 5%;
    margin-top: 5rem;
}
.learn4 p:nth-child(2){
         position: absolute;
    width: 130px;
    height: 12px;
    font-size: 13px;
    font-family: Arial, Arial-Regular;
    font-weight: 400;
    text-align: left;
    color: #555555;
    left: 5%;
    margin-top: 10rem;
}
.learn4 p:nth-child(3){
         position: absolute;
    width: 130px;
    height: 12px;
    font-size: 13px;
    font-family: Arial, Arial-Regular;
    font-weight: 400;
    text-align: left;
    color: #555555;
    left: 5%;
    margin-top: 12rem;
}
.learn4-1{
   /* margin-top: -10rem;*/
    background: url(../img/bg_web_img6.png) no-repeat 0;
    background-position: 100%;
    background-size: 50% 70%;
    height: 436px;
    width: 100%;
}
.learn4-1 p:first-child{
   position: absolute;
    max-width: 150px;
    height: 16px;
    font-size: 17px;
    font-family: Arial, Arial-Bold;
    font-weight: 700;
    text-align: left;
    color: #555555;
    left: 5%;
    margin-top: 5rem;
}
.learn4-1 p:nth-child(2){
         position: absolute;
    width: 130px;
    height: 12px;
    font-size: 13px;
    font-family: Arial, Arial-Regular;
    font-weight: 400;
    text-align: left;
    color: #555555;
    left: 5%;
    margin-top: 10rem;
}
.el-message{min-width: 80px;}
.el-button:focus, .el-button:hover {
    /* color: #409EFF; */
    border-color: #ffffff;
    /*background-color: #ff8024;*/
}

 }
 @media screen and (min-width:721px){
 .main{
    margin-top:60px; 
}
.el-button.is-round:hover{
	/*background:#ff8024;*/
}
.app_img{
	    width: 40%;
    float: left;
    margin-left: 10%;
    margin-top: -5%;
}
#home_des{
     width: 100%; 
/*      height: 620px;  */
     min-height:100vh;
    /* background: url(../img/web_bg@3x.png) no-repeat 0px; */
     background-position: center;
     background-size: 100% 100%; 
/*     width: 100%; */
/*     min-height: 120vh; */
/*     background: url(web/img/banner@2x.png) no-repeat 0px; */
/*     background-position: bottom; */
/*     background-size: cover; */
/*     background-position: center center; */
/*     background-size: cover; */
}
#ad_des{
    font-family: AliHYAiHei-Beta;
    font-weight: bold;
    color: #181C1F;
    text-align: center;
    font-size: 40px;
    margin-top: 100px
}
#home_buttom{
        /*float: left; */
      position: absolute;
    top: 23rem;
    left: 55%;
    /* margin-left: 18rem; */
    /* margin-top: -6rem;*/
}
.android_icon{
	    width: 18px;
    height: 21px;
    margin-right: 10px;
    position: relative;
    margin-bottom: -5px;
}
.el-button{
     font-size: 16px;
    font-family: Arial, Arial-Bold;
    /*font-weight: 700;*/
    text-align: center;
    color: #ffffff;
    margin-right: 2rem;
        background: #ff8024;
        width: 160px;
}
.android_txt{
	    font-size: 16px;
    font-family: PingFang SC, PingFang SC-Bold;
    color: #ffffff;
    margin-top: 100px;
}
#learn_more{
    /*background: url(../img/web_bg1@2x.png) no-repeat 0px;*/
    background-position: top;
   background-size: cover;
    height:100%;
    margin-bottom: 200px; 
}
.learn1{
      

}
.learn1 p:first-child{
	height: 16px;
    font-size: 1.2rem;
    text-align: center;
    color: #555555;
    padding-top: 20px;
    margin-bottom: 5rem;
    font-family: Source Han Sans CN;
font-weight: 500;
color: #444444;
}
.learn1 p:nth-child(2){
	height: 12px;
    font-size: 1rem;
    font-family: Arial, Arial-Regular;
    font-weight: 400;
    text-align: left;
    color: #555555;
    margin-left: 10%;
    margin-right:10%;
    margin-bottom:5rem;
}
.learn1 p:nth-child(3){
	height: 12px;
    font-size: 1rem;
    font-family: Arial, Arial-Regular;
    font-weight: 400;
    text-align: left;
    color: #555555;
    margin-left: 10%;
    margin-right:10%;
}
#learn1_img{
     background: url(../img/bg_web_img2@2x.png) no-repeat 0; 
     background-position: center; 
     background-size: contain; 
     height: 506px; 
     width:100%; 
     margin-top: 100px;
      animation: rotate 60s infinite linear;
}
.learn2{
    margin-top: 100px;
    background: url(../img/bg_web_img3@2x.png) no-repeat 0;
    /*background-position: center;*/
    background-position: 80%;
    background-size: contain;
    height: 436px;
    width: 100%;
}
.learn2 p:first-child{
       position: absolute;
    width: 214px;
    height: 16px;
    font-size: 1.2rem;
    font-family: Arial, Arial-Bold;
    font-weight: 700;
    text-align: left;
    color: #555555;
    left: 20%;
    margin-top: 5rem;
}
.learn2 p:nth-child(2){
           position: absolute;
    /* width: 241px; */
    height: 12px;
    font-size: 1rem;
    font-family: Arial, Arial-Regular;
    font-weight: 400;
    text-align: left;
    color: #555555;
    left: 20%;
    margin-top: 10rem;
    width: 300px;
}
.learn2 p:nth-child(3){
           position: absolute;
    /* width: 241px; */
    height: 12px;
    font-size: 1rem;
    font-family: Arial, Arial-Regular;
    font-weight: 400;
    text-align: left;
    color: #555555;
    left: 20%;
    margin-top: 12rem;
    width: 300px;
}
.learn3{
    margin-top: 100px;
    background: url(../img/bg_web_img44@2x.png) no-repeat 0;
    background-position: 20%;
    background-size: contain;
    height: 436px;
    width: 100%;
}
.learn3 p:first-child{
     position: absolute;
    width: 214px;
    height: 1.2rem;
    font-size: 17px;
    font-family: Arial, Arial-Bold;
    font-weight: 700;
    text-align: left;
    color: #555555;
    /* left: 20%; */
    margin-top: 5rem;
}
.learn3 p:nth-child(2){
 position: absolute;
    /* width: 241px; */
    height: 12px;
    font-size: 1rem;
    font-family: Arial, Arial-Regular;
    font-weight: 400;
    /* text-align: left; */
    color: #555555;
    /* left: 20%; */
    margin-top: 10rem;
}
.learn3 p:nth-child(3){
 position: absolute;
    /* width: 241px; */
    height: 12px;
    font-size: 1rem;
    font-family: Arial, Arial-Regular;
    font-weight: 400;
    /* text-align: left; */
    color: #555555;
    /* left: 20%; */
    margin-top: 12rem;
}
.learn3-1{
    margin-top: 100px;
    background: url(../img/bg_web_img9@2x.png) no-repeat 0;
    background-position: 20%;
    background-size: contain;
    height: 436px;
    width: 100%;
}
.learn3-1 p:first-child{
     position: absolute;
    width: 214px;
    height: 1.2rem;
    font-size: 17px;
    font-family: Arial, Arial-Bold;
    font-weight: 700;
    text-align: left;
    color: #555555;
    /* left: 20%; */
    margin-top: 5rem;
}
.learn3-1 p:nth-child(2){
 position: absolute;
    /* width: 241px; */
    height: 12px;
    font-size: 1rem;
    font-family: Arial, Arial-Regular;
    font-weight: 400;
    /* text-align: left; */
    color: #555555;
    /* left: 20%; */
    margin-top: 10rem;
}
.learn3-1 p:nth-child(3){
 position: absolute;
    /* width: 241px; */
    height: 12px;
    font-size: 1rem;
    font-family: Arial, Arial-Regular;
    font-weight: 400;
    /* text-align: left; */
    color: #555555;
    /* left: 20%; */
    margin-top: 12rem;
}
.p_font{
       position: absolute;
    width: 350px;
    height: 1.2rem;
    font-size: 17px;
    font-family: Arial, Arial-Bold;
    font-weight: 700;
    text-align: left;
    color: #555555;
    right: 20%;
}
.learn4{
    margin-top: 100px;
    background: url(../img/bg_web_img5@2x.png) no-repeat 0;
    background-position: 80%;
    background-size: contain;
    height: 436px;
    width: 100%;
}
.learn4 p:first-child{
    position: absolute;
/*     width: 214px; */
    height: 16px;
    font-size: 1.2rem;
    font-family: Arial, Arial-Bold;
    font-weight: 700;
    text-align: right;
    color: #555555;
    left: 20%;
    margin-top: 5rem;
}
.learn4 p:nth-child(2){
        position: absolute;
   width: 300px;
    height: 12px;
    font-size: 1rem;
    font-family: Arial, Arial-Regular;
    font-weight: 400;
    text-align: left;
    color: #555555;
    left: 20%;
    margin-top: 10rem;
}
.learn4 p:nth-child(3){
        position: absolute;
   width: 300px;
    height: 12px;
    font-size: 1rem;
    font-family: Arial, Arial-Regular;
    font-weight: 400;
    text-align: left;
    color: #555555;
    left: 20%;
    margin-top: 12rem;
}
.learn4-1{
    margin-top: 100px;
    background: url(../img/bg_web_img6@2x.png) no-repeat 0;
    background-position: 80%;
    background-size: contain;
    height: 436px;
    width: 100%;
}
.learn4-1 p:first-child{
    position: absolute;
/*     width: 214px; */
    height: 16px;
    font-size: 1.2rem;
    font-family: Arial, Arial-Bold;
    font-weight: 700;
    text-align: right;
    color: #555555;
    left: 20%;
    margin-top: 5rem;
}
.learn4-1 p:nth-child(2){
        position: absolute;
   width: 300px;
    height: 12px;
    font-size: 1rem;
    font-family: Arial, Arial-Regular;
    font-weight: 400;
    text-align: left;
    color: #555555;
    left: 20%;
    margin-top: 10rem;
}

.el-button.is-round {
        background: #181C1F;
    border-radius: 12px;
  /* padding: 6px 10px;
    width: 8.2rem;*/
}
.video_img{
	
          margin-top: 40px;
    width: 100px;
    height: 100px;
    background: #FFE1CF;
    border-radius: 5px;
    position: relative;
    }
    .video_img, .down_box{
        float: left;
        margin-top: 55px;
            position: absolute;
    top: 23rem;
    left: 8rem;
    }
 .video_img .video_logo{
        width:100%;
    }
    .el-button:focus, .el-button:hover {
    /* color: #409EFF; */
    border-color: #ffffff;
    /*background-color: #ff8024;*/
}

	
}