body{
    font-size: 14px;
    -webkit-text-size-adjust: none;
}
.header-top{
    z-index: 2;
    position: absolute;
    top: 0;
    width:100%;
    height:3.4rem;
    margin: 0 auto;
    background-image: url(../images/vr-h5-head-top.png);
    background-repeat: no-repeat;
    background-position: center center;
    background-size: 40% 100%;
    text-align: center;
   
}
.header-top .address{
   line-height:3.4rem;
   font-size:16px;
   color:#fff;
}
.go-back{
	    z-index: 2;
	    position: fixed;
	    top: 70px;
	    left: 0;
	    width:120px;
	    height: 50px;
	    background-color: rgba(0, 0, 0, 0.3);
	    border-radius: 0 10px 10px 0;
	    text-align: center;
	    line-height: 50px;
	    color: #fff;
	    font-size: 20px;
	    cursor: pointer;
	    user-select: none;
	    display: flex;
		align-items: center;
		padding-left: 20px;
		transition: all 0.3s;
}
.control-btn{
	z-index: 2;
	position: fixed;
    top: 70px;
    right: 20px;
}
.control-btn .btn{
	margin-bottom: 20px;
	 width: 50px;
	 height:50px;
	 line-height: 50px;
	 text-align: center;
	 background-color: rgba(0, 0, 0, 0.3);
	 border-radius: 50%;
	 display: flex;
	 align-items: center;
	 justify-content: center;
   cursor: pointer;
}

.layui-product .layui-layer-content{
	padding: 20px;
	color: #000;
}
.layui-qcode{
	border-left-width:0
}
.layui-qcode .layui-layer-content img{
	width:160px;
	height:160px;
	margin: 0 auto;
	text-align: center;
}
@media screen and (min-width: 320px) and (max-width: 480px) {
    /* 在这里写小屏幕设备的样式 */
    .header-top{
        background-size: 40% 100%;
    }
    .header-top .address{
        font-size:14px;
     }
  }
  
  @media only screen and (min-width: 321px) and (max-width: 1024px) {
    /* 这里写宽度大于321px小于1024px的样式(一般是平板电脑) */
    .header-top{
        background-size: 90% 100%;
    }
    .header-top .address{
        font-size:14px;
     }
  }
  
  @media only screen and (min-width: 1029px) {
    .header-top{
        background-size: 40% 100%;

    }
    .header-top .address{
        font-size:16px;
     }
    /* 这里写pc客户端的样式 */
  }