.join {
    width: 100%;
    height: 700px;
    background-color: #fff;
    background-image: url(../images/350.jpg);
    background-size: 100% 100%;
    position: relative;
}

.deliver {
    width: 250px;
    height: 60px;
    font-size: 30px;
    line-height: 60px;
    color: #fff;
    background: linear-gradient(to bottom, rgba(255, 159, 95, 0.8), rgba(255, 107, 61, 0.9));
    text-shadow: 3px 3px 2px rgb(0 63 170 / 30%);
    box-shadow: 3px 3px 5px rgb(0 0 0 / 30%);
    transition: all .5s;
    text-align: center;
    cursor: pointer;
    border-radius: 30px;
    position: absolute;
    top: 80%;
    left: 50%;
    transform: translate(-50%, -50%);
    user-select: none;
}

.deliver:hover {
    transform: translate(-50%, -70%);
}

.join_container {
    width: 100%;
    height: 500px;
    background-image: url(../images/wg.png);
    background-size: 100% 100%;
    margin-top: 50px;
}

.join_container_title {
    border-bottom: 1px solid #000;
    font-size: 30px;
    font-weight: bold;
    margin-bottom: 30px;
}

.recruitment {
    font-size: 20px;
    color: #ccc;
    margin-left: 20px;
}

.step {
    position: relative;
    width: 250px;
    height: 250px;
    border-radius: 50%;
    background-color: rgb(255, 255, 255);
    margin: auto;
    /* overflow: hidden; */
    /* border: #ccc 1px solid; */
    box-shadow: rgba(100, 100, 111, 0.2) 0px 7px 29px 0px;

}

.step_content {
    background-color: rgb(255, 255, 255);
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.contents {
    text-align: center;
}

.contents-title {
    font-weight: bold;
}

.contents-heading {
    color: #4540df;
    font-weight: bold;
}

.next {
    position: absolute;
    width: 30%;
    color: #4540df;
    font-size: 15px;
    top: 50%;
    right: 0;
    transform: translate(100%, -50%);
}



/**********************分辨率样式***********************/
@media (min-width:1600px) {
    .container {
        width: 1400px;
        margin: 0 auto;
    }

}

@media (max-width:1600px) {
    .container {
        width: 1400px;
        margin: 0 auto;
    }

}

@media (max-width:1500px) {
    .container {
        width: 1300px;
        margin: 0 auto;
    }

}

@media (max-width:1400px) {
    .container {
        width: 1100px;
        margin: 0 auto;
    }

    .join {
        height: 666px;
    }


}

@media (max-width:1200px) {
    .container {
        width: 900px;
        margin: 0 auto;
    }

    .join {
        height: 510px;
    }

    .join_container_title {
        font-size: 22px;
        margin-bottom: 50px;
    }

    .recruitment {
        font-size: 17px;
    }

    .col-md-3 {
        float: left;
    }

    .step {
        width: 190px;
        height: 190px;
    }

    .next {
        width: 50%;
    }

    .contents-title {
        font-size: 20px;
    }

    .contents-heading {
        font-size: 16px;
    }
}



@media (max-width:992px) {
    .join {
        height: 470px;
    }

    .col-md-3 {
        float: left;
    }

    .step {
        width: 150px;
        height: 150px;
        overflow: hidden;
    }

    .step_content {
        width: 110px;
    }
}

@media (max-width:769px) {
    .container {
        width: 620px;
    }

    .join {
        height: 400px;
    }

    .deliver {
        width: 180px;
        height: 40px;
        font-size: 16px;
        line-height: 40px;
    }

    .join_container {
        height: 340px;
    }

    .step {
        width: 110px;
        height: 110px;
    }

    .contents-title {
        font-size: 16px;
    }

    .contents-heading {
        font-size: 14px;
    }

    .step_content {
        width: 90px;
    }

}

@media (max-width:640px) {
    .container {
        width: 460px;
    }

    .join {
        height: 290px;
    }

    .deliver {
        width: 150px;
        height: 30px;
        font-size: 14px;
        line-height: 30px;
    }

    .join_container {
        height: 230px;
    }

    .join_container_title {
        font-size: 15px;
        margin-bottom: 20px;
    }

    .recruitment {
        font-size: 12px;
        margin-left: 14px;
    }

    .step {
        width: 75px;
        height: 75px;
    }

    .step_content {
        width: 50px;
    }

    .contents {
        margin-top: 10px;
    }

    .contents-title {
        font-size: 12px;
    }

    .contents-heading {
        font-size: 10px;
    }
}

@media (max-width:460px) {
    .container {
        width: 340px;
    }

    .join {
        height: 230px;
    }

    .join_container {
        margin-top: 20px;
        height: 330px;
    }

    .col-md-3 {
        width: 50%;
        margin-bottom: 20px;
    }
}

@media (max-width:360px) {
    .container {
        width: 290px;
    }

    .join {
        height: 180px;
    }

    .deliver {
        width: 100px;
        height: 20px;
        font-size: 11px;
        line-height: 20px;
    }
}

@media (max-width:300px) {
    .container {
        width: 270px;
        padding-left: 0;
        padding-right: 0;
    }

    .join {
        height: 160px;
    }

}