.kf-index{
    background: url(../images/online.gif) no-repeat #ff6000 center;
}
.read_bt {
    width: 66%;
    margin: 1px auto;
}
.read_bt .search{
    display: flex;
}
.read_bt .search .qr-btn{
    width: 88px;
    background-color: #EF5051;
    border: 1px solid #EF5051;
    color: #fff;
    font-weight: 600;
    border-radius: 0 4px 4px 0;
}
.read_bt .search .expressNo{
    background-color: #201f33;
    color: #fff;
    font-size:12px;
}