.banner {
    width: 100%;
    height: auto;
    font-size: 2vw;
    color: #fff;
    font-weight: 600;
    text-align: center;
    position: relative;
}
.banner .text{
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%,-50%);
}

.center {
    background-color: #fff;
}


.centerRegion {
    width: 55%;
    margin: 0 auto;
}

.tab1 {
    margin-top: 3vw;
    width: 100%;
    float: left;
    padding-right: 2vw;
    margin-bottom: 4vw;
}

.tab1 .title {
    text-align: center;
    font-weight: 600;
    font-size: 1.4vw;
}

.tab1 .time {
    margin: 1vw 1.6vw;
    text-align: right;
    font-weight: 500;
    font-size: 0.8vw;
    color: #0009;
}

.tab1 .info {
    margin: 1.6vw;
    color: #0009;
    font-size: 0.8vw;
    line-height: 1.4vw;
}

.tab1 .info img{
    max-width: 100%;
    max-height: max-content;
}
.tab1 .img {
    width: 60%;
    margin-left: 20%;
}

.tab1 .pre {
    width: 40%;
    float: left;
    font-weight: 600;
    overflow: hidden;
    white-space: nowrap;
    text-overflow: ellipsis;
}

.tab1 .next {
    width: 40%;
    float: right;
    font-weight: 600;
    overflow: hidden;
    white-space: nowrap;
    text-overflow: ellipsis;
}

.tab2 {
    margin-top: 3vw;
    margin-left: calc(2vw - 5px);
    width: 35%;
    float: left;
    margin-bottom: 2vw;
}


.tab2 .item {
    float: left;
    width: 80%;
    margin-right: 2%;
    height: 17vw;
    background-color: #f7f7f7;
    margin-top: 2vw;
    color: #3e3a39;
    position: relative;
    overflow: hidden;
    position: relative;
}

.tab2 .item:first-child {
    margin-top: 0;
}

.tab2 .item .img {
    width: 100%;
    height: calc(100% - 2vw);
}

.tab2 .item .info {
    z-index: 1;
    position: absolute;
    top: calc(100% - 2vw);
    transform: translateY(0);
    left: 10%;
    width: 80%;
    transition-duration: 1s;
}

.tab2 .item .info .title1 {
    font-size: 1vw;
    font-weight: 600;
    line-height: 2vw;
    color: #000;
    transition-duration: 1s;
}

.tab2 .item .hoverbg {
    z-index: 0;
    width: 100%;
    height: 100%;
    background-color: #ff5500;
    position: absolute;
    top: 100%;
    transition-duration: 1s;
}

.tab2 .item:hover .hoverbg {
    top: 0%;
}

.tab2 .item:hover .info {
    top: 1vw;
}

.tab2 .item:hover .info .title1 {
    color: #0000;
}