.part_c {
    width: 66vw;
    /* padding: 0 17vw; */
    /* margin-top: 4vw; */
    margin: 4vw auto;
    height: 50vw;
}

.part_a1 {
    padding: 0 17vw;
    height: 161vw;
    margin-top: 3vw;
}
.part_a1 img{
    margin-bottom: 4vw;
}


.shangyiye_1_{
    background-color: #ffffff;
    width: 10vw;
    height: 2vw;
    border: #e72450 solid 1px;
    font-size: 0.8vw;
    border-radius: 10vw;
    color: #e72450;
    bottom: 31vw;
    left: 25vw;
    margin: 40px 15vw;
}
.xiayiye_2_{
    background-color: #fff;
    width: 10vw;
    height: 2vw;
    /* margin-left: 14.5vw; */
    border: #e72450 solid 1px;
    font-size: 0.8vw;
    border-radius: 10vw;
    color: #e72450;
    margin: 40px 15vw;
}


.m_jianjie{
    width: 100%; padding: 1vw 25vw;
}

.m_tiaoti2{
    text-align: center;
    color: #d7294b;
    font-size: 1.4vw;
}

@media screen and (max-width:767px) {

    .part_c {
        width: 95vw;
        margin-top: 4vw;
        margin: 8vw auto;
        height: 264vw;
    }
    .part_a1 {
        padding: 0 6vw;
        height: 282vw;
        margin-top: 3vw;
    }
    .shangyiye_1_{
        background-color: #ffffff;
        width: 21vw;
        height: 8vw;
        border: #e72450 solid 1px;
        font-size: 15px;
        border-radius: 10vw;
        color: #e72450;
        bottom: 31vw;
        left: 25vw;
        margin: 40px 12vw;
    }
    .xiayiye_2_{
        background-color: #fff;
        width: 21vw;
        height: 8vw;
        /* margin-left: 14.5vw; */
        border: #e72450 solid 1px;
        font-size: 15px;
        border-radius: 10vw;
        color: #e72450;
        margin: 40px 15vw;
    }
    .m_jianjie{
        width: 100%;
        padding: 1vw 6vw;
    }

    .m_tiaoti2{
        text-align: center;
        color: #d7294b;
        font-size: 14px;
    }


}