.pro_div {
    width: calc((100% - 80px) / 3);
    margin-right: 40px;
    margin-top: 30px;
}

.main_son .pro_div:nth-child(3n) {
    margin-right: 0;
}

.pro_div .imgBox {
    padding-bottom: 100%;
    background: #EEEEEE;
    border-radius: 12px 12px 12px 12px;
}

.pro_div_title {
    font-family: Exo-Bold;
    font-weight: bold;
    font-size: 20px;
    color: #333333;
    text-align: center;
    display: block;
    margin-top: 20px;
}

.pro_tips_box {
    margin-top: 5%;
}

.pro_tips_mian {
    display: flex;
    flex-wrap: wrap;
}

.pro_tips_div {
    width: calc((100% - 120px) / 3);
    margin-right: 60px;
    margin-top: 60px;
}

.pro_tips_mian .pro_tips_div:nth-child(3n) {
    margin-right: 0;
}

.pro_tips_div_top img {
    width: 34px;
    margin-right: 12px;
    flex-shrink: 0;
}

.pro_tips_div_top div {
    font-family: Open Sans-Bold;
    font-weight: bold;
    font-size: 20px;
    color: #FF5E14;
    line-height: 1.5em;
    height: 1.5em;
    overflow: hidden;
}

.pro_tips_div_bottom {
    margin-top: 15px;
    padding-left: 46px;
    font-family: Arial-Regular;
    font-weight: 400;
    font-size: 16px;
    color: #666666;
    line-height: 2;
}

.pro_faq_mian {
    margin-top: 5%;
}

.pro_faq_div {
    margin-top: 35px;
}

.pro_faq_div_top {
    background: #F3F3F3;
    border-radius: 12px 12px 12px 12px;
    padding: 15px 50px;
}

.pro_faq_div_top div {
    flex: 1;
    margin-right: 20px;
    font-family: Arial-Bold;
    font-weight: bold;
    font-size: 20px;
    color: #333333;
}

.pro_faq_div_top b {
    display: block;
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    background: url('img/faq_icon3.png') no-repeat;
    background-size: 100% 100%;
    transform: rotate(270deg);
}

.pro_faq_div_bottom {
    margin-top: 30px;
    font-family: Arial-Regular;
    font-weight: 400;
    font-size: 16px;
    color: #666666;
    line-height: 30px;
    display: none;
}

.pro_faq_div_act .pro_faq_div_top b{
    transform: none;
}

.pro_faq_div_act .pro_faq_div_bottom{
    display: block;
}

@media only screen and (max-width: 950px) {
    .pro_div{
        width: 100%;
        margin-right: 0;
    }

    .pro_tips_div{
        width: 100%;
        margin-right: 0;
        margin-top: 30px;
    }

    .pro_faq_div_top{
        padding: 15px;
    }
}