*{
    margin: 0;
    padding: 0;
}
.header{
    width: 100%;
    height: 56px;
    display: flex;
    justify-content: center;
    align-items: center;
    background: rgba(0,0,0,.4);
    position: fixed;
    top: 0;
    z-index: 6;
}
.header .nav{
    width: 1200px;
    height: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.header .nav .left{
    width: 100px;
    height: 100%;
}
.header .nav .left img{
    width: 100%;
    height: 100%;
}
.header .nav .right{
    width: 40%;
    height: 100%;
    list-style-type: none;
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.header .nav .right>li{
    flex: 1;
    height: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
}
.header .nav .right>li>a{
    width: 100%;
    height: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    text-decoration: none;
    box-sizing: border-box;
    color: #fff;
    font-weight: 600;
    font-size: 14px;
    text-transform: uppercase;
}
.header .nav .right>li>a:hover{
    border-bottom:  1px solid rgb(255, 255, 255);
}

.banner{
    width: 100%;
    height: 395px;
    background: url("../images/about.jpg");
    background-size: 100%;
    background-position: 50% 100%;
    display: flex;
    justify-content: center;
    align-items: center;
}
.banner .box{
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    border-radius: 10px;
    color: #fff;
    justify-content: space-evenly;
}
.banner .box h3{
    margin-top: 55px;
    font-size: 54px;
}
.banner .box p{
    margin: 30px 0;
    line-height: 1.33;
    font-size: 22px;
    text-align: justify;
}
.main{
    width: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: column;
}

.data-container {
    margin-bottom: 20px;
    display: flex;
    flex-wrap: wrap;
    width: 80%;
}
.data-container img{
    width: 100%;
    transition: 0.3s;
}

.item {
    width: calc(33% - 2px);
    border: 1px solid #ccc;
    /*padding: 10px;*/
    margin-bottom: 10px;
    overflow: hidden;
    color: #333333;
    text-decoration: none;
}
.item:hover{
    border: 1px solid #6950ff;

}
.item-img>img:hover{
    transform: scale(1.1);
}
.item-img{
    width: 100%;
    height: 256px;
    overflow: hidden;
}
.item-text{
    width: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 40px;

}
.item-text:hover{
    text-decoration: underline;
}

.pagination {
    list-style: none;
    padding: 0;
    display: flex;
}

.pagination a {
    display: inline-block;
    padding: 5px 10px;
    background-color: #f2f2f2;
    color: #333;
    text-decoration: none;
    margin-right: 5px;
}

.pagination a.active {
    background-color: #ccc;
}
.data-container .item:not(:first-child):not(:nth-child(4)) {
    margin-left: 0.5%;
}
.main-tab{
    width: 80%;
    height: 55px;
    display: flex;
    justify-content: center;
    align-items: center;
    list-style-type: none;
    box-shadow: 0 0 15px rgba(0,0,0,.4);
    margin: 30px 0;
}
.main-tab li{
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100%;
}
.main-tab a{
    width: 100%;
    height: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    text-decoration: none;
    color: #333333;
}
.main-tab a:hover {
    background: #3178bd;
    color: #fff;
}

.bottom{
    margin-top: 60px;
    height: 75px;
    width: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    background: #132032;
    color: #fff;
}