.about_three {
    padding: 0;
    position: relative
}

.about_three .bg {
    background: url(../image/1.jpg) no-repeat center center/cover;
    padding-bottom: 42%
}

.about_three .auto-1400 {
    display: flex;
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 100%;
    height: 100%;
}

.about_three .item {
    flex: 1;
    padding-top: .8rem;
    cursor: pointer;
    color: #fff
}

.about_three .item:hover {
    background: rgba(0, 0, 0, .5)
}

.about_three .name {
    text-align: center;
    font-size: .35rem;
    padding-bottom: .1rem;
    margin-bottom: .15rem;
    position: relative
}

.about_three .name i {
    height: 2px;
    background: #14A83B;
    width: .3rem;
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    bottom: 0;
}

.about_three .note {
    text-align: center;
    padding: 0 .75rem;
    font-size: .2rem;
}

.about_three .note > p {
    line-height: .24rem
}

@media (max-width: 1024px) {
    .about_three .bg {
        padding-bottom: 55%
    }

    .about_three .auto-1400 {
        display: block
    }

    .about_three .item {
        padding-top: .4rem;
    }

    .about_three .item:hover {
        background: none
    }

    .about_three .name {
        text-align: left;
        font-size: .3rem;
        padding-bottom: .1rem;
        margin-bottom: .1rem
    }

    .about_three .name i {
        left: 0;
        transform: translateX(0)
    }

    .about_three .note {
        text-align: left;
        padding: 0;
        font-size: .2rem;
    }
}

@media (max-width: 480px) {
    .about_three .bg {
        padding-bottom: 100%
    }
}

.mCS-mytheme.mCSB_scrollTools .mCSB_dragger .mCSB_dragger_bar {
    background-color: #ccc;
    width: 5px
}

.mCS-mytheme.mCSB_scrollTools .mCSB_draggerRail {
    background-color: #eee;
}

.culture_popup {
    display: none;
    position: fixed;
    z-index: 999;
    width: 100%;
    height: 100%;
    left: 0;
    top: 0;
    background: rgba(0, 0, 0, .3)
}

.culture_popup .con {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: #fff;
    border-radius: .1rem;
    width: 60%;
    height: 700px;
    padding: .7rem;
}

.culture_popup .close {
    position: absolute;
    width: 16px;
    height: 16px;
    top: .7rem;
    right: .7rem;
    background: url(../image/btn_close.png);
    transition: .5s;
    cursor: pointer
}

.culture_popup .close:hover {
    transform: rotate(360deg)
}

.culture_popup .name {
    font-size: .3rem;
    color: #333;
    padding-bottom: .3rem;
    font-weight: 600
}

.culture_popup .content {
    font-size: .2rem;
    line-height: .35rem;
    margin-bottom: .2rem;
    overflow: hidden;
    height: 500px
}

@media (max-width: 1024px) {
    .culture_popup .con {
        width: 80%
    }
}

@media (max-width: 640px) {
    .culture_popup .con {
        height: 500px
    }

    .culture_popup .content {
        height: 400px
    }
}