.alipay_img{
    width: 100%;
    max-width: 17.5rem;
    display: block;
    margin: auto;
    padding: 0.5rem;
    border-radius: 16px;
    box-shadow: 0 0 10px rgba(0,0,0,.1);
}
.alipay_span{
    width: 100%;
    height: 1.8rem;
    line-height: 1.8rem;
    max-width: 16.5rem;
    font-size: 0.65rem;
    display: block;
    text-align: center;
    border: 1px solid #ddd;
    margin: 0.75rem auto auto auto;
    border-radius: 4px;
    cursor: pointer;
    background-color: #e8e8fd;
}
.night .alipay_span{
    border: 1px solid #666;
    color: #ccc;
    background-color: #333;
}