.mainBg{
    overflow: visible;
}
.hisTop{
    position: relative;
    padding: 0 60px;
    background-color: #FFFFFF;
    height: 160px;
    transform: translateY(-35%);
    z-index: 1;
    text-align: center;
}
.hisTop::before,
.hisTop::after{
    display: block;
    content: "";
    width: 1px;
    height: 60px;
    background: #DDDDDD;
    position: absolute;
    top: 50%;
    margin-top: -30px;
}
.hisTop::before{
    left: 60px;
}
.hisTop::after{
    right: 60px;
}
.hisTop .prev,
.hisTop .next{
    display: block;
    width: 32px;
    height: 32px;
    background-position: center center;
    background-repeat: no-repeat;
    background-size: contain;
    position: absolute;
    top: 50%;
    margin-top: -16px;
    cursor: pointer;
}
.hisTop .prev{
    left: 14px;
    background-image: url(../images/about/prev.png);
}
.hisTop .next{
    right: 14px;
    background-image: url(../images/about/next.png);
}
.hisTop .swiper-button-disabled{
    opacity: .2;
    cursor: no-drop;
}
.hisCon{
    position: relative;
    display: flex;
    align-items: center;
    height: 100%;
    padding: 0 10px;
    cursor: pointer;
    margin-left: -1px;
}
.hisCon::before{
    display: block;
    content: "";
    width: 1px;
    height: 20px;
    background-color: #999999;
    position: absolute;
    left: 0;
    top: 50%;
    margin-top: -10px;
}
.hisDes{
    width: 100%;
    padding-top: 5px;
}
.title{
    width: 182px;
    height: 40px;
    font-size: 24px;
    font-family: PingFangSC-Semibold, PingFang SC;
    font-weight: 600;
    color: #FFFFFF;
    line-height: 20px;
    background: linear-gradient(180deg, #FFFFFF 0%, rgba(255, 255, 255, 0.1) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    text-transform: uppercase;
    margin: 0 auto -10px;
    max-height: 0;
    overflow: hidden;
    transition: all .3s linear;
}
.hisCon .year{
    font-size: 24px;
    font-family: PingFangSC-Semibold, PingFang SC;
    font-weight: 600;
    color: #666666;
    line-height: 1.4;
}
.hisCon .des{
    font-size: 16px;
    color: #999999;
    line-height: 1.8;
}
.swiper-slide-active .hisCon{
    background-color: #E60012;
}
.swiper-slide-active + .swiper-slide .hisCon::before,
.swiper-slide-active .hisCon::before{
    background-color: #E60012;
    display: none;
}
.swiper-slide-active .hisCon .year,
.swiper-slide-active .hisCon .des{
    color: #FFFFFF;
}
.swiper-slide-active .hisCon .title{
    max-height: 40px;
    transition: all .3s linear .2s;
}
.hisTop .swiper-slide:first-child .hisCon::before{
    display: none;
}
.hisBot{
    margin: 20px 0 0;
    padding-bottom: 100px;
}
.hisItem{
    display: flex;
    justify-content: space-between;
}
.hisImg{
    list-style: none;
    width: 37%;
    flex-shrink: 0;
}
.hisImg li{
    display: none;
}
.hisImg img{
    max-width: 100%;
    height: auto;
}
.month{
    position: relative;
    text-align: center;
    height: 150px;
    margin-top: 70px;
    flex: auto;
}
.monthTit{
    position: absolute;
    left: 50%;
    bottom: 100%;
    transform: translate(-51%,50%);
    text-align: center;
    font-size: 48px;
    font-family: DINAlternate-Bold, DINAlternate;
    font-weight: bold;
    color: rgba(51, 51, 51, 0);
    line-height: 48px;
    background: linear-gradient(180deg, rgba(230, 0, 18, 0.1) 0%, rgba(230, 0, 18, 0.05) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    text-transform: uppercase;
}
.monthTit span{
    display: none;
}
.monthText{
    font-size: 24px;
    font-family: DINAlternate-Bold, DINAlternate;
    font-weight: bold;
    color: #CCCCCC;
    line-height: 50px;
    transition: all .3s;
    cursor: pointer;
}
.swiper-slide-active .monthText{
    font-size: 36px;
    color: #333333;
}
.hisText{
    width: 40%;
    list-style: none;
    margin-top: 75px;
    flex-shrink: 0;
}
.hisText li{
    display: none;
}
.hisText .date{
    position: relative;
    font-size: 24px;
    font-family: DINAlternate-Bold, DINAlternate;
    font-weight: bold;
    color: #333333;
    line-height: 1.6;
}
.hisText .date::before{
    display: block;
    content: "";
    width: 60px;
    height: 2px;
    background-color: #CCCCCC;
    position: absolute;
    top: 50%;
    right: 100%;
    margin-right: 20px;
    margin-top: -1px;
}
.hisText .info{
    font-size: 16px;
    color: #666666;
    line-height: 2;
}
.hisText .info p{
    margin: 15px 0;
}
@media only screen and (min-width: 1200px) and (max-width: 1920px) {
    .mainBg{
        overflow: visible;
    }
    .hisTop{
        position: relative;
        padding: 0 3.125vw;
        background-color: #FFFFFF;
        height: 8.333vw;
        transform: translateY(-35%);
        z-index: 1;
        text-align: center;
    }
    .hisTop::before,
    .hisTop::after{
        display: block;
        content: "";
        width: 0.052vw;
        height: 3.125vw;
        background: #DDDDDD;
        position: absolute;
        top: 50%;
        margin-top: -1.562vw;
    }
    .hisTop::before{
        left: 3.125vw;
    }
    .hisTop::after{
        right: 3.125vw;
    }
    .hisTop .prev,
    .hisTop .next{
        display: block;
        width: 1.666vw;
        height: 1.666vw;
        background-position: center center;
        background-repeat: no-repeat;
        background-size: contain;
        position: absolute;
        top: 50%;
        margin-top: -0.833vw;
        cursor: pointer;
    }
    .hisTop .prev{
        left: 0.729vw;
        background-image: url(../images/about/prev.png);
    }
    .hisTop .next{
        right: 0.729vw;
        background-image: url(../images/about/next.png);
    }
    .hisTop .swiper-button-disabled{
        opacity: .2;
        cursor: no-drop;
    }
    .hisCon{
        position: relative;
        display: flex;
        flex-direction: column;
        justify-content: center;
        align-items: center;
        height: 100%;
        padding: 0 0.520vw;
        cursor: pointer;
    }
    .hisCon::before{
        display: block;
        content: "";
        width: 0.052vw;
        height: 1.041vw;
        background-color: #999999;
        position: absolute;
        left: 0;
        top: 50%;
        margin-top: -0.520vw;
    }
    .title{
        width: 9.479vw;
        height: 2.083vw;
        font-size: 1.25vw;
        font-family: PingFangSC-Semibold, PingFang SC;
        font-weight: 600;
        color: #FFFFFF;
        line-height: 1.041vw;
        background: linear-gradient(180deg, #FFFFFF 0%, rgba(255, 255, 255, 0.1) 100%);
        -webkit-background-clip: text;
        -webkit-text-fill-color: transparent;
        text-transform: uppercase;
        margin: 0 auto -0.520vw;
        max-height: 0;
        overflow: hidden;
        transition: all .3s linear;
    }
    .hisCon .year{
        font-size: 1.25vw;
        font-family: PingFangSC-Semibold, PingFang SC;
        font-weight: 600;
        color: #666666;
        line-height: 1.4;
    }
    .hisCon .des{
        font-size: 0.833vw;
        color: #999999;
        line-height: 1.8;
    }
    .swiper-slide-active .hisCon{
        background-color: #E60012;
    }
    .swiper-slide-active + .swiper-slide .hisCon::before,
    .swiper-slide-active .hisCon::before{
        background-color: #E60012;
        display: none;
    }
    .swiper-slide-active .hisCon .year,
    .swiper-slide-active .hisCon .des{
        color: #FFFFFF;
    }
    .swiper-slide-active .hisCon .title{
        max-height: 2.083vw;
        transition: all .3s linear .2s;
    }
    .hisBot{
        margin: 1.041vw 0 0;
        padding-bottom: 5.208vw;
    }
    .hisItem{
        display: flex;
        justify-content: space-between;
    }
    .hisImg{
        width: 37%;
        flex-shrink: 0;
    }
    .hisImg img{
        max-width: 100%;
        height: auto;
    }
    .month{
        position: relative;
        text-align: center;
        height: 7.812vw;
        margin-top: 3.645vw;
        flex: auto;
    }
    .monthTit{
        position: absolute;
        left: 50%;
        bottom: 100%;
        transform: translate(-51%,50%);
        text-align: center;
        font-size: 2.5vw;
        font-family: DINAlternate-Bold, DINAlternate;
        font-weight: bold;
        color: rgba(51, 51, 51, 0);
        line-height: 2.5vw;
        background: linear-gradient(180deg, rgba(230, 0, 18, 0.1) 0%, rgba(230, 0, 18, 0.05) 100%);
        -webkit-background-clip: text;
        -webkit-text-fill-color: transparent;
        text-transform: uppercase;
    }
    .monthText{
        font-size: 1.25vw;
        font-family: DINAlternate-Bold, DINAlternate;
        font-weight: bold;
        color: #CCCCCC;
        line-height: 2.604vw;
        transition: all .3s;
        cursor: pointer;
    }
    .swiper-slide-active .monthText{
        font-size: 1.875vw;
        color: #333333;
    }
    .hisText{
        width: 40%;
        list-style: none;
        margin-top: 3.906vw;
        flex-shrink: 0;
    }
    .hisText li{
        display: none;
    }
    .hisText .date{
        position: relative;
        font-size: 1.25vw;
        font-family: DINAlternate-Bold, DINAlternate;
        font-weight: bold;
        color: #333333;
        line-height: 1.6;
    }
    .hisText .date::before{
        display: block;
        content: "";
        width: 3.125vw;
        height: 0.104vw;
        background-color: #CCCCCC;
        position: absolute;
        top: 50%;
        right: 100%;
        margin-right: 1.041vw;
        margin-top: -0.052vw;
    }
    .hisText .info{
        font-size: 0.833vw;
        color: #666666;
        line-height: 2;
    }
    .hisText .info p{
        margin: 0.781vw 0;
    }
}
@media (max-width:1200px) {
    .hisTop{
        height: 110px;
        padding: 0 40px;
    }
    .hisTop::before,
    .hisTop::after{
        height: 40%;
        margin-top: 0;
         transform: translateY(-50%);
    }
    .hisTop::before{
        left: 40px;
    }
    .hisTop::after{
        right: 40px;
    }
    .hisTop .prev,
    .hisTop .next{
        width: 40px;
        height: 40px;
        background-size: 22px auto;
        margin-top: -20px;
    }
    .hisTop .prev{
        left: 0;
    }
    .hisTop .next{
        right: 0;
    }
    .title{
        width: 100%;
        font-size: 18px;
    }
    .hisCon .year{
        font-size: 20px;
    }
    .hisCon .des{
        font-size: 12px;
    }
    .hisBot{
        margin: 0;
        padding-bottom: 0.6rem;
    }
    .monthTit{
        font-size: 30px;
    }
    .month{
        margin-top: 30px;
        height: 120px;
    }
    .monthText{
        font-size: 18px;
        line-height: 40px;
    }
    .swiper-slide-active .monthText{
        font-size: 24px;
    }
    .hisText{
        margin-top: 36px;
    }
    .hisText .date{
        font-size: 18px;
    }
    .hisText .date::before{
        width: .4rem;
        margin-right: .1rem;
    }
    .hisText .info{
        font-size: 14px;
    }
    .hisText .info p{
        margin: .1rem 0;
    }
}
@media (max-width:767px) {
    .mainBg {
        overflow: hidden;
    }
    .hisTop{
        height: 80px;
        transform: translateY(0);
        margin: 0 -15px;
    }
    .title{
        font-size: 16px;
    }
    .hisCon .year{
        font-size: 18px;
    }
    .hisCon .des{
        display: none;
    }
    .hisBot{
        margin-top: .5rem;
    }
    .hisImg{
        display: none;
    }
    .month{
        width: 70px;
        flex-shrink: 0;
    }
    .monthTit{
        font-size: .28rem;
    }
    .monthText{
        font-size: 16px;
    }
    .swiper-slide-active .monthText{
        font-size: 20px;
    }
    .hisText{
        width: calc(100% - 70px);
        flex: auto;
    }
    .hisText .date{
        font-size: 16px;
    }
    .hisText .info{
        font-size: 12px;
    }
}
@media (max-width:460px) {
    .hisTop{
        height: 60px;
    }
    .title{
        font-size: 12px;
        line-height: 14px;
        height: 28px;
    }
    .hisDes{
        padding-top: 0;
    }
    .hisCon .year{
        font-size: 16px;
    }
}