.history-shaft {
    margin-bottom: 80px;
    margin-top: 20px;
    position: relative;
}

.history-shaft .item {
    position: relative
}

.history-shaft .item.item2 {
    margin-top: -300px;
}

.history-shaft .item.item3 {
    margin-top: -65px;
}

.history-shaft .item.item4 {
    margin-top: -285px;
}

.history-shaft .item.item5 {
    margin-top: -78px;
}

.history-shaft .item.item6 {
    margin-top: 26px;
}

.history-shaft .item.item7,
.history-shaft .item.item9,
.history-shaft .item.item10,
.history-shaft .item.item11 {
    margin-top: -20px;
}

.history-shaft .item.item8 {
    margin-top: -40px;
}

.history-shaft .item .history {
    position: absolute;
    width: 140px;
    left: 50%;
    margin-left: -70px;
    top: 0;
}

.history-shaft .item .history span {
    padding: 0 25px
}

.history-shaft .item-l {
    position: relative;
    float: left;
    padding-right: 85px;
}

.history-shaft .item-r {
    position: relative;
    float: right;
    padding-left: 85px;
}

.history-shaft .item-l::after {
    content: '';
    position: absolute;
    right: 0;
    top: 23px;
    width: 85px;
    height: 1px;
    background: #ddd;
    z-index: 1;
}

.history-shaft .item-r::after {
    content: '';
    position: absolute;
    left: 0;
    top: 23px;
    width: 85px;
    height: 1px;
    background: #ddd;
    z-index: 1;
}

.history-shaft .item-l .real-box {
    text-align: right;
}

.history-shaft .real-box {
    padding: 28px 25px;
    border: 1px solid #ddd;
    margin-top: 5px;
}

.history-shaft .real-box .tit {
    font-size: 16px;
    font-weight: bold;
    color: #333;
    margin: 0 0 10px 0;
}

.history-shaft .real-box p {
    font-size: 16px;
    color: #666;
    margin-bottom: 0;
}

.history-shaft img {
    width: 100%;
    vertical-align: top;
    margin-top: 25px;
}

.history-shaft .history-body {
    width: 140px;
    height: 71%;
    position: absolute;
    left: 50%;
    margin-left: -70px;
    top: 0;
    text-align: center;
}

.history-shaft .history-body .history-bg {
    height: 100%;
    width: 4px;
    background-color: #E6E6E6;
    position: absolute;
    left: 69px
}

.history-shaft .history {
    width: 100%;
    padding: 5px 0;
    background-color: #fff;
    text-align: center
}

.history-shaft .history span {
    color: #fff;
    line-height: 36px;
    background-color: #C10F1F;
    padding: 0 15px;
    width: auto;
    display: inline-block;
    font-size: 16px;
    border-radius: 18px;
    position: relative;
    z-index: 2;
}

.history-shaft .item:last-of-type .real-box {
    position: relative;
    z-index: 9;
    background: #fff;
}

/* 
@media (min-width: 1200px) {
    .event-width{display:block!important;}
    .m-event-width{display:none!important;}
}
@media (min-width: 768px) and (max-width:991px) {
    .event-width{display:block!important;}
    .m-event-width{display:none!important;}
}
@media (min-width: 320px) and (max-width:700px) {
    .event-width{display:none!important;}
    .m-event-width{display:block!important;margin-top:30px;}
} */
@media (max-width:767px) {

    .history-shaft .item-r::after,
    .history-shaft .item-l::after {
        display: none;
    }

    .history-shaft .item-r,
    .history-shaft .item-l {
        float: none;
        padding: 0;
    }

    .history-shaft .real-box {
        padding: 14px;
        border: 0;
        margin: 0 14px 14px 14px;
    }

    .history-shaft .item .history {
        text-align: left;
        position: relative;
        left: 0;
        top: 0;
        margin: 0;
        padding: 0 14px;
        width: auto;
    }

    .history-shaft .item .history span {
        border-radius: 0 15px 15px 0;
        line-height: 30px;
        padding: 0 12px;
    }

    .history-shaft .history-body {
        width: 2px;
        left: 0;
        margin-left: 0;
        height: 81%;
    }

    .history-shaft .history-body .history-bg {
        left: 0;
        width: 2px;
    }

    .history-shaft .item-l .real-box {
        text-align: left;
    }

    .history-shaft .real-box p {
        font-size: 14px;
    }

    .history-shaft {
        margin-bottom: 40px;
        margin-top: 0;
    }

    .history-shaft img {
        margin-top: 10px;
    }

    .history-shaft .item.item1,
    .history-shaft .item.item2,
    .history-shaft .item.item3,
    .history-shaft .item.item4,
    .history-shaft .item.item5,
    .history-shaft .item.item6,
    .history-shaft .item.item7,
    .history-shaft .item.item8,
    .history-shaft .item.item9,
    .history-shaft .item.item10,
    .history-shaft .item.item11 {
        margin-top: 0;
    }
}