@media only screen and (min-device-width: 768px){
    /* 加入我们半透明的遮罩层 */
    #join_hidden,#info_hidden {
        background: #000;
        /* filter: alpha(opacity=50); */
        /* IE的透明度 */
        /* opacity: 0.5; */
        /* 透明度 */
        display: none;
        position: fixed;
        top: 0;
        width: 100%;
        height: 100%;
        color: #FFF;
        z-index: 100;
        /* 此处的图层要大于页面 */
    }
    #join_hidden .main {
        width: 16rem;
        height: 5rem;
        margin: 0 auto;
        display: flex;
        flex-wrap: wrap;
        justify-content: space-between;
        align-items: center;
    }
    #join_hidden .main .join_item {
        height: .7467rem;
        margin:0 0.5rem;
        border-radius: .3733rem;
        font-size: .3067rem;
        line-height: .7467rem;
        text-align: center;
        border: .0267rem solid #fff;
        padding: 0 .8rem 0 0.5rem;
        position: relative;
    }
    #join_hidden #join_title {
        color: #fff;
        position: absolute;
        top: .67rem;
        left: 4rem;
        font-size: .45rem;
    }
    #join_hidden .main .item {
        position: relative;
        /* background-color: #fff; */
        margin: 2rem auto;
    }
    #join_hidden .main .join_item:hover {
        transform: scale(1.1);
    }
    #join_hidden .main .icon {
        width: .1333rem;
        height: .2333rem;
        background-image: url(../images/icon_next.png);
        background-size: cover;
        position: absolute;
        top: 0.28rem;
        right: 0.7rem;
    }
    #join_hidden .main .join_item:hover {
        cursor: pointer;
    }
    #join_return {
        width: .2667rem;
        height: .4667rem;
        background-image: url(../images/icon_back.png);
        background-size: cover;
        position: absolute;
        top: .7rem;
        left: 1.5733rem;
    }
    #join_return:hover {
        cursor: pointer;
    }
    /*展示具体职位招聘信息的遮罩层*/
    #info_hidden #info_return {
        width: .2667rem;
        height: .4667rem;
        font-size: 0.5333rem;
        background-image: url(../images/icon_back.png);
        background-size: cover;
        background-position: center;
        position: absolute;
        top: .7rem;
        left: 1.5733rem;
    }
    #info_hidden #info_return:hover {
        cursor: pointer;
    }
    #info_hidden .main {
        width: 9.28rem;
        height: 9.3333rem;
        position: absolute;
        left: 4.8rem;
        top: .7733rem;
        color: #fff;
    }
    #info_hidden .main .info_title {
        font-size: .4rem;
    }
    #info_hidden .main .title {
        width: 9.28rem;
        height: .6667rem;
        line-height: .5rem;
    }
    #info_hidden .main .responsibility {
        width: 9.28rem;
        margin-top: .5rem;
    }
    #info_hidden .main .title {
        font-size: .32rem;
    }
    #info_hidden .main .text {
        margin-top: .3rem;
        font-size: .2rem;
        line-height: .35rem;
    }
    #info_hidden .main .qualification {
        width: 9.28rem;
        margin-top: .3rem;
    }
    #info_hidden .main .contact {
        width: 9.28rem;
        height: .3333rem;
        margin-top: .2rem;
    }
    #info_hidden .main .contact {
        height: .3333rem;
        line-height: .3333rem;
    }
    #info_hidden .main .contact .icon {
        width: .3333rem;
        height: .3333rem;
        float: left;
        background-image: url("../images/join_us/icon_mail.png");
        background-size: cover;
        margin-right: .3rem;
    }
    #info_hidden .main .contact .text {
        font-size: .24rem;
        line-height: .333rem;
    }
}
@media only screen and (max-device-width: 768px){
    /* 加入我们半透明的遮罩层 */
    #join_hidden,#info_hidden {
        background: #000;
        /* filter: alpha(opacity=50); */
        /* IE的透明度 */
        /* opacity: 0.5; */
        /* 透明度 */
        display: none;
        position: fixed;
        top: 0;
        width: 100%;
        height: 100%;
        color: #FFF;
        z-index: 100;
        /* 此处的图层要大于页面 */
    }
    #join_hidden .main {
        width: 3rem;
        height: 5rem;
        margin: 0 auto;
        display: flex;
        flex-wrap: wrap;
        justify-content: space-between;
        align-items: center;
    }
    #join_hidden .main .join_item {
        height: .3467rem;
        margin:0 0.5rem;
        border-radius: .3733rem;
        font-size: .18rem;
        line-height: .2567rem;
        text-align: center;
        border: .0267rem solid #fff;
        padding: 0 .2rem 0 0.2rem;
        position: relative;
    }
    #join_hidden #join_title {
        color: #fff;
        position: absolute;
        top: .37rem;
        left: 1rem;
        font-size: .2rem;
    }
    #join_hidden .main .item {
        position: relative;
        /* background-color: #fff; */
        margin: 0.8rem auto;
    }
    #join_hidden .main .join_item:hover {
        transform: scale(1.1);
    }
    #join_hidden .main .join_item:hover {
        cursor: pointer;
    }
    #join_return {
        width: .1333rem;
        height: .2333rem;
        background-image: url(../images/icon_back.png);
        background-size: cover;
        position: absolute;
        top: .4rem;
        left: .2rem;
    }
    #join_return:hover {
        cursor: pointer;
    }
    /*展示具体职位招聘信息的遮罩层*/
    #info_hidden #info_return {
        width: .1333rem;
        height: .2333rem;
        font-size: 0.18rem;
        background-image: url(../images/icon_back.png);
        background-size: cover;
        background-position: center;
        position: absolute;
        top: .38rem;
        left: .2rem;
    }
    #info_hidden #info_return:hover {
        cursor: pointer;
    }
    #info_hidden .main {
        width: 3.75rem;
        height: 9.3333rem;
        position: absolute;
        left: .2rem;
        top: .7733rem;
        color: #fff;
    }
    #info_hidden .main .info_title {
        font-size: .22rem;
    }
    #info_hidden .main .title {
        width: 3.75rem;
        height: .6667rem;
        line-height: .25rem;
    }
    #info_hidden .main .responsibility {
        width: 3.75rem;
        margin-top: .25rem;
    }
    #info_hidden .main .title {
        position: absolute;
        top:.5rem;
        font-size: .22rem;
    }
    #info_hidden .main #text1 {
        position: absolute;
        top: 1rem;
        width: 3.45rem;
        margin-top: 0;
        font-size: .12rem;
        line-height: .22rem;
    }
    #info_hidden .main #text2 {
        position: absolute;
        top: 1rem;
        width: 3.45rem;
        font-size: .12rem;
        line-height: .22rem;
    }
    #info_hidden .main .qualification {
        position: absolute;
        top: 2.8rem;
        width: 3.75rem;
    }
    #info_hidden .main .contact {
        width: 3.75rem;
        height: .3333rem;
        margin-top: .2rem;
    }
    #info_hidden .main .contact {
        height: .3333rem;
        line-height: .2rem;
    }
    #info_hidden .main .contact .icon {
        position: absolute;
        top: 6.77rem;
        width: .3333rem;
        height: .3333rem;
        background-image: url("../images/join_us/icon_mail.png");
        background-size: cover;
        margin-right: .3rem;
    }
    #info_hidden .main .contact .text {
        position: absolute;
        left: .5rem;
        top: 6.86rem;
        font-size: .12rem;
        line-height: .15rem;
    }
}