.holder{
    height: 10vh;
    background: #F5F5F5;
}
.nav{
    background: #F5F5F5!important;
}

.banner{
    padding: 100px;
}
.banner-title{
    font-size: 3vh;
    font-weight: 550;
}
.banner-subtitle{
    font-size: 1.5vh;
    font-weight: 400;
    margin-top: 0.5vh;
}

.main{
    width: 100%;
    min-height: 60vh;
    display: flex;
    justify-content: space-between;
    margin-bottom: 1vh;
}
.main-left{
    width: 350px;
    border-right: 1px solid #EEEEEE;
    min-height: 60vh;
    position: relative;
    overflow: hidden;
}

.main-left::before{
    height:10vh;
    background: #0d6efd;
    content: '';
    position: absolute;
    right: -1px;
    top: 1vh;
    width: 3px;
}


.main-right{
    flex: 1;
    overflow: hidden;
    padding: 1vh 5vw 1vh 2vw;
}

.item{
    display: block;
    padding: 3vh;
}
.item-time{
    font-size: 2vh;
    margin-bottom: 1vh;
}
.item-title{
    font-size: 2vh;
    margin-bottom: 0.5vh;
}
.item-desc{
    font-size: 1.5vh;
    margin-bottom: 2vh;
    margin-top: 1vh;
    color: #888888;
}
.item-more{
    margin-bottom: 1vh;
    font-size: 1.5vh;
    color: #888;
}

.item:hover{
    background: #0d6efd;
    color: #fff;
}
.item:hover .item-desc{
    color: #fff;
}
.item:hover .item-more{
    color: #fff;
}


.cate{
    display: flex;
    flex-direction: column;
}
.cate-item{
    display: flex;
    align-items: center;
    justify-content: right;
    padding: 1vh 2vw;
    color: #333;
}
.cate-item.active{
    color: #0d6efd;
    font-weight: 550;
}


@media (max-width: 768px) {
    .main{
        flex-direction: column;
    }
    .main-left{
        width: 100%;
        min-height: 0;
        border: none;
    }
    .main-left::before{
        display: none;
    }
    .cate{
        flex-direction: row;
        padding: 0 2vw;
    }
    .cate-item{
        justify-content: center;
    }
}