#Download {
    width: 1110px;
    height: 71px;
    position: absolute;
    top: 876px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 999;
}

#Download>a {
    display: inline-block;
    width: 307px;
    height: 71px;
    margin-right: 85px;
    cursor: pointer;
}

.btn_down_dlk {
    background: url(../image/btn1.png);
}

.btn_down_bd {
    background: url(../image/btn2.png);
}

.btn_jiechi {
    background: url(../image/btn3.png);
}