* {
    margin: 0;
    padding: 0;
    line-height: 1;
}
html,body{
    width: 100%;
    max-width: 750px;
    height: auto;
    margin: 0 auto;
}
.wrap{
    width: 100%;
    height: auto;
    position: relative;
}
.wrap > img{
    width: 100%;
    display: block;
    height: auto;
    border: none;
}
.btn_down{
    display: block;
    position: absolute;
    top: 9.81rem;
    left: 50%;
    margin-left: -2.79rem;
    width:5.58rem;
    height:.98rem;
    line-height: .98rem;
    font-size:.32rem;
    text-align: center;
    font-family:PingFang-SC-Bold;
    font-weight:bold;
    color:rgba(255,255,255,1);
    background:rgba(255,193,0,1);
    border-radius:.08rem;
    box-shadow:0 0 .14rem 0 rgba(237,123,0,0.7);
    border: none;
    outline: none;
    cursor: pointer;
    text-decoration: none;
}

/* loading 效果*/
.loading-wrap{
    width: 100%;
    height: 100%;
    position: fixed;
    left:0;
    top:0;
    z-index: 1888;
    background:#fff;
}
.load-box{
    display: block;
    position: absolute;
    left: 50%;
    top:40%;
    margin-top:-50px;
    margin-left: -50px;
    width: 100px;
    height: 130px;
}
.load-txt{
    color: #303030;
    text-indent: 5px;
    font-size: 0.28rem;
}
/* loading end */
.shareBox {
    position: fixed;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    background: rgba(0,0,0,0.7);
    z-index: 999;
    text-align: center;
    display: none;
}
.share-box-1 {
    width: 3.27rem;
    height: 3rem;
    margin: 0 auto;
    margin-top: 3rem;
}
.share-box-2 {
    position: fixed;
    top: .4rem;
    right: .4rem;
    width: 1.95rem;
    height: 2.29rem;
}
.shareBox p {
    margin-top: .4rem;
    font-size: .4rem;
    color: #F9C623;
    text-align: center;
}