.about_3_box {
    width: 100%;
    padding-top: calc(6px + 5rem);
    padding-bottom: calc(4px + 1.5rem);
}

.about_3 {
    max-width: 1475px;
    width: 85%;
    margin: auto;
}

.cer_list {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    row-gap: calc(8px + 1.5rem);
    margin-top: calc(3px + 4rem);
}

.cer_item {
    width: 23.0508%;
    height: calc(20px + 15rem);
    background: #FFFFFF;
    box-shadow: 0px calc(2px + 0.1rem) calc(5px + 0.25rem) 0px rgba(216, 216, 216, 0.2);
    border-radius: calc(5px + 0.25rem);
    border: 1px solid #D8D8D8;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: 0 calc(10px + 0.5rem);
}

.cer_item_pic {
    width: 100%;
    height: calc(20px + 10rem);
    background: #F7F8FC;
    border-radius: calc(5px + 0.25rem);
    display: flex;
    justify-content: center;
    align-items: center;
}

.cer_item_pic img {
    height: calc(100px + 5rem);
}

.cer_item .p1 {
    font-family: Roboto_Regular;
    font-weight: 400;
    font-size: calc(6px + 0.5rem);
    color: #222222;
    line-height: calc(10px + 1rem);
    text-align: center;
    margin-top: calc(10px + 0.5rem);
}
.position_box {
    display: none;
}
@media screen and (max-width: 1100px){
    .position_box {
        display: block;
    }
    .cer_item{
        width: 48.5%;
        height: auto;
        padding: calc(10px + 1rem) 0;
    }
    .cer_item .p1{
        font-size: calc(12px + 1rem);
       
    }
    .cer_item_pic img {
        width: 100%;
        height: auto;
    }
    .cer_item_pic{
        height: auto;
    }
}