.about_history .detail {
    padding: 160px 0 120px;
    position: relative;
    background: #F9F9F9;
}

@media only screen and (max-width:1280px) {
    .about_history .detail {
        padding: 120px 0
    }
}

@media only screen and (max-width:768px) {
    .about_history .detail {
        padding: 120px 3.334% 80px
    }
}

.about_history .detail .common-crump {
    z-index: 1;
    position: absolute;
    top: 60px;
    left: calc(7.8125% + 200px + 20px)
}

@media only screen and (max-width:1280px) {
    .about_history .detail .common-crump {
        top: 40px;
        left: calc(7.8125% + 120px + 20px)
    }
}

@media only screen and (max-width:768px) {
    .about_history .detail .common-crump {
        top: 80px;
        left: 7.8125%
    }
}

@media only screen and (max-width:575px) {
    .about_history .detail .common-crump {
        left: 40px
    }
}

.about_history .detail .container {
    margin: 0 auto;
    max-width: 1740px;
    width: calc(100% - 100px)
}

@media only screen and (max-width:768px) {
    .about_history .detail .container {
        width: 100%
    }
}

.about_history .detail .common-headerline-three {
    margin: 0 auto;
    max-width: 1000px;
    width: 100%;
    text-align: center
}

.about_history .detail .detail-content {
    margin-top: 60px
}

@media only screen and (max-width:768px) {
    .about_history .detail .detail-content {
        margin-top: 40px
    }
}

.about_history .detail .col {
    word-break: break-word;
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-align: start;
    -ms-flex-align: start;
    align-items: flex-start;
    -webkit-box-pack: justify;
    -ms-flex-pack: justify;
    justify-content: space-between;
    position: relative
}

@media only screen and (max-width:992px) {
    .about_history .detail .col {
        padding: 40px 60px;
        background: #323232;
        border-bottom: 1px solid rgba(209, 209, 209, 0.5);
        -webkit-box-orient: vertical;
        -webkit-box-direction: normal;
        -ms-flex-direction: column;
        flex-direction: column;
        -webkit-box-pack: start;
        -ms-flex-pack: start;
        justify-content: flex-start
    }
}

@media only screen and (max-width:768px) {
    .about_history .detail .col {
        padding: 40px
    }
}

.about_history .detail .col .year-wrap {
    padding: 20px 8.621% 0 0;
    max-width: 545px;
    width: 31.322%;
    font-weight: 700;
    font-size: 3.75rem;
    line-height: 1.5;
    color: #EFEFEF;
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-pack: end;
    -ms-flex-pack: end;
    justify-content: flex-end;
    position: sticky;
    top: 20vh;
    -webkit-transition: color 0.3s;
    transition: color 0.3s
}

@media only screen and (max-width:1200px) {
    .about_history .detail .col .year-wrap {
        padding: 20px 40px 0 0
    }
}

@media only screen and (max-width:992px) {
    .about_history .detail .col .year-wrap {
        padding: 0;
        max-width: none;
        width: 100%;
        color: #3051a2;
        -webkit-box-pack: start;
        -ms-flex-pack: start;
        justify-content: flex-start;
        position: static;
        top: auto
    }
}

.about_history .detail .col .year-wrap:before {
    content: "";
    display: block;
    border-style: solid;
    border-width: 12.5px 25px 12.5px 0;
    border-color: transparent;
    position: absolute;
    top: 60px;
    right: 0;
    -webkit-transition: border-color 0.7s;
    transition: border-color 0.7s
}

.about_history .detail .col .year-wrap>p {
    max-width: 150px;
    width: 100%
}

.about_history .detail .col .info-wrap {
    max-width: 1200px;
    width: 100%;
    position: relative;
    -webkit-transition: background 0.7s;
    transition: background 0.7s
}

@media only screen and (max-width:992px) {
    .about_history .detail .col .info-wrap {
        margin: 20px 0 0
    }
}

.about_history .detail .col .info-wrap .info-col {
    padding: 60px 80px;
    border-bottom: 1px solid rgba(209, 209, 209, 0.5);
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex
}

@media only screen and (max-width:1200px) {
    .about_history .detail .col .info-wrap .info-col {
        padding: 60px 40px
    }
}

@media only screen and (max-width:992px) {
    .about_history .detail .col .info-wrap .info-col {
        padding: 0;
        -webkit-box-orient: vertical;
        -webkit-box-direction: normal;
        -ms-flex-direction: column;
        flex-direction: column;
        border-bottom: none
    }
}

@media only screen and (max-width:992px) {
    .about_history .detail .col .info-wrap .info-col:not(:first-child) {
        margin-top: 80px
    }
}

.about_history .detail .col .info-wrap .date {
    max-width: 80px;
    width: 100%;
    font-weight: 700;
    font-size: 1.25rem;
    display: none;
    -webkit-transition: color 0.3s;
    transition: color 0.3s
}

@media only screen and (max-width:992px) {
    .about_history .detail .col .info-wrap .date {
        max-width: none;
        color: #3051a2
    }
}

.about_history .detail .col .info-wrap .info {
    margin-left: max(5.77%, 30px);
    max-width: 800px;
    width: 100%;
    -webkit-transition: color 0.3s;
    transition: color 0.3s
}

@media only screen and (max-width:992px) {
    .about_history .detail .col .info-wrap .info {
        margin: 20px 0 0;
        max-width: none;
        color: #fff
    }
}

.about_history .detail .col .info-wrap .info li:not(:first-child) {
    margin-top: 40px
}

.about_history .detail .col .info-wrap .info .txt-box {
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-align: start;
    -ms-flex-align: start;
    align-items: flex-start
}

.about_history .detail .col .info-wrap .info .txt-box:before {
    margin-right: 20px;
    content: "";
    display: block;
    width: 8px;
    height: 8px;
    background: #D1D1D1;
    -webkit-transform: translateY(10px);
    transform: translateY(10px);
    -ms-flex-negative: 0;
    flex-shrink: 0;
    -webkit-transition: background 0.3s;
    transition: background 0.3s
}

@media only screen and (max-width:992px) {
    .about_history .detail .col .info-wrap .info .txt-box:before {
        background: #3051a2
    }
}

.about_history .detail .col .info-wrap .title {
    font-weight: 500;
    font-size: 1.25rem;
    line-height: 1.5
}

.about_history .detail .col .info-wrap .txt {
    margin-top: 10px;
    line-height: 1.8
}

.about_history .detail .col .info-wrap .img-box {
    margin-top: 40px;
    position: relative
}

.about_history .detail .col .info-wrap .img-box:before {
    content: "";
    display: block;
    width: 100%;
    height: 100%;
    padding-bottom: 66.25%
}

.about_history .detail .col .info-wrap .img-box img {
    width: 100%;
    height: 100%;
    -o-object-fit: cover;
    object-fit: cover;
    position: absolute;
    left: 50%;
    top: 50%;
    -webkit-transform: translate(-50%, -50%);
    transform: translate(-50%, -50%)
}

@media only screen and (max-width:992px) {
    .about_history .detail .col .info-wrap .img-box {
        margin-top: 20px
    }
}

@media only screen and (min-width:993px) {
    .about_history .detail .col.active .year-wrap {
        color: #3051a2
    }

    .about_history .detail .col.active .year-wrap:before {
        border-color: transparent #323232 transparent transparent
    }

    .about_history .detail .col.active .info-wrap {
        background: #323232
    }

    .about_history .detail .col.active .date {
        color: #3051a2
    }

    .about_history .detail .col.active .info {
        color: #fff
    }

    .about_history .detail .col.active .info .txt-box:before {
        background: #3051a2
    }
}

.about_history .no-content {
    margin-top: 60px
}

@media only screen and (max-width:768px) {
    .about_history .no-content {
        margin-top: 40px
    }
}