.mask {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.75);
    z-index: 100;
    display: none;
}
/*弹框*/
.pop_group {
    display: none;
    border-radius: 4px;
    font-size: 20px
}

.pop_group .pop_rong_Box {
    position: relative;
    width: 100%;
    height: 100%;
}

/*进入主页的弹框*/
.pop_index {
    width: 1200px;
    height: 668px;
    color: #939393;
    line-height: 1.8;
    background: url(../img/pop_bg/pop_pt.png) no-repeat;
    background-size: cover;
    left: 45%!important;
}

.pop_group .btns_close_pop {
    position: absolute;
    top: 120px;
    right: 89px;
    width: 20px;
    height: 20px;
}

.btn_ji {
    display: inline-block;
    background-image: url(../img/pop_close.png);
    background-repeat: no-repeat;
    vertical-align: middle;
}

.pop-btn {
    width: 200px;
    height: 56px;
    background: url(../img/pop_btn/pop_pt_bt.png) no-repeat;
    background-size: cover;
    position: absolute;
    left: 50%;
    margin-left: 79px;
    bottom: 303px;
}