.centrt-mask{
    position: fixed;
    /* width: 26rem;
    height: 16rem; */
    background-color: rgba(0,0,0,.4);
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    display: none;
}
.centrt-mask >div{
    position: relative;
    top: 3rem;
    left: 0;
    right: 0;
    margin: auto;
    width: 40rem;
    background:  #f2f2f2;;
    padding: 1rem;
}
.centrt-mask >div > .img{
    text-align: right;
    margin-bottom: 1rem;
}
.centrt-mask >div > .img >img{
    width: 32px;
    font-weight: 400;
    cursor: pointer;
}
.centrt-mask >div .title{
    color: #333;
    font-weight: 700;
    /*margin-bottom: 3rem;*/
    margin: 0 30px 3rem;
    font-size: 22px;
}
.centrt-mask >div .input-btn{
    height: 4.5rem;
    line-height: 4.5rem;
    /*margin-bottom: 3rem;*/
    margin: 0 30px 3rem;
    display: flex;
    justify-content: space-between;
}
.centrt-mask >div .input-btn >input{
    font-size: 22px;
    font-weight: 700;
    color: #626262;
    flex: 1;
    border: 1px solid #ccc;
    padding-left: 10px; /* 上下 10px，左右 10px */
    /*margin-right: 1rem;*/
}
.centrt-mask >div .input-btn >div{
    background-color: red;
    width: 95px;
    min-width: 70px;
    text-align: center;
    color: #fff;
    font-size: 16px;
    font-weight: 600;
}
/*@media (max-width:1200px){*/
/*    .centrt-mask >div .input-btn{*/
/*        margin: 0 30px 3rem;*/
/*    }*/
/*}*/
@media (max-width:650px){
    .centrt-mask >div .input-btn >input{
        width: auto;
        min-width: 200px;
    }
    .centrt-mask >div .input-btn{
        margin: 0 0 3rem 0 !important;
    }
    .centrt-mask >div .title{
        margin: 0 0 3rem 0 !important;
    }
    .centrt-mask >div{
        width: 100%;
    }
}
@media (max-width:767px){
    .coupon__logo span{
        margin-top: 10px !important;
    }
}