.page13_1 .who {
    background-position: center;
    background: url('../page13_1/images/page13_1_who_bg.png')no-repeat;
    background-size: cover;
}

.who .page_tit h1,
.who .page_tit p {
    color: #fff;
}

.who .page_tit b {
    color: #4ab5d5
}

.who ul {
    display: flex;
    margin-top: 80px;
    justify-content: space-between;
}

.who ul li {
    width: 20%;
    position: relative;
}

.who ul li img {
    width: 200px;
    height: 200px;
    object-fit: cover;
    display: block;
    margin: 0 auto;
    transition: all .5s;
}

.who ul li p {
    width: fit-content;
    margin: 0 auto;
    font-size: 22px;
    padding-top: 30px;
    color: #fff;
    font-weight: 500;
    text-align: center;
}

.who ul li p span {
    font-size: 13px;
    font-weight: 900;
    display: block;
    color: #4ab5d5;
    letter-spacing: 2px;
    padding-bottom: 15px;
    margin-bottom: 15px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.3);
}

.who ul li:after {
    position: absolute;
    content: "";
    display: block;
    width: 50px;
    height: 50px;
    border-radius: 50px;
    background: #4ab5d5;
    right: 25px;
    top: -25px;
    opacity: 0;
}

.who ul li:hover:after {
    opacity: 0.5;
    transition: all .5s;
}


.effect_list ul {
    border-top: 3px solid #000;
    width: 1000px;
    margin: 0 auto;
    display: flex;
    justify-content: center;
    margin-top: 80px;
}

.effect_list ul li {
    border: 1px solid #e4e4e4;
    padding: 100px 40px 40px 40px;
    line-height: 32px;
    font-size: 22px;
    font-weight: 600;
    width: 250px;
    border-right: 0;
    position: relative;
}

.effect_list ul li:last-child {
    border-right: 1px solid #e4e4e4;
}

.effect_list ul li img {
    display: block;
    width: 50px;
    height: 50px;
    position: absolute;
    top: 40px;
    right: 40px;
}

.effect_list ul li span {
    display: block;
    color: #f6a000;
    border-bottom: 1px solid #e4e4e4;
    margin-bottom: 15px;
    padding-bottom: 15px;
    font-weight: 900;
    font-size: 14px;
    letter-spacing: 2px;
}

@media screen and (max-width:799px) {
    .effect_list ul {
        width: 100%;
        flex-wrap: wrap;
        margin-top: 40px;
    }

    .effect_list ul li {
        padding: 30px 20px 20px 20px;
        width: 50%;
        border-right: 0;
        line-height: 20px;
        font-size: 15px;
    }

    .effect_list ul li span {
        font-size: 11px;
    }

    .effect_list ul li:nth-child(2n) {
        border-right: 1px solid #e4e4e4;
    }

    .effect_list ul li:nth-child(n+3) {
        border-top: 0
    }

    .effect_list ul li img {
        display: block;
        width: 35px;
        height: 35px;
        position: absolute;
        top: 15px;
        right: 20px;
    }
}