html,body{
    font-size: 14px;
    color: #333;
}
body{
    margin: 0;
}
a{
    text-decoration: none;
    color: inherit;
}
a:hover{
    opacity: 0.75;
}
img{
    max-width: 100%;
    object-fit: cover;
}
*:focus{
    outline: none;
}
.pagination {
    display: inline-block;
    padding-left: 0;
    margin: 20px 0;
    border-radius: 4px;
}
.pagination > li {
    display: inline;
}
.pagination > li > a,
.pagination > li > span {
    position: relative;
    float: left;
    padding: 6px 12px;
    margin-left: -1px;
    line-height: 1.42857143;
    color: #337ab7;
    text-decoration: none;
    background-color: #ffffff;
    border: 1px solid #dddddd;
}
.pagination > li > a:hover,
.pagination > li > span:hover,
.pagination > li > a:focus,
.pagination > li > span:focus {
    z-index: 2;
    color: #23527c;
    background-color: #eeeeee;
    border-color: #dddddd;
}
.pagination > li:first-child > a,
.pagination > li:first-child > span {
    margin-left: 0;
    border-top-left-radius: 4px;
    border-bottom-left-radius: 4px;
}
.pagination > li:last-child > a,
.pagination > li:last-child > span {
    border-top-right-radius: 4px;
    border-bottom-right-radius: 4px;
}
.pagination > .active > a,
.pagination > .active > span,
.pagination > .active > a:hover,
.pagination > .active > span:hover,
.pagination > .active > a:focus,
.pagination > .active > span:focus {
    z-index: 3;
    color: #ffffff;
    cursor: default;
    background-color: #337ab7;
    border-color: #337ab7;
}
.pagination > .disabled > span,
.pagination > .disabled > span:hover,
.pagination > .disabled > span:focus,
.pagination > .disabled > a,
.pagination > .disabled > a:hover,
.pagination > .disabled > a:focus {
    color: #777777;
    cursor: not-allowed;
    background-color: #ffffff;
    border-color: #dddddd;
}
.pagination-lg > li > a,
.pagination-lg > li > span {
    padding: 10px 16px;
    font-size: 18px;
    line-height: 1.3333333;
}
.pagination-lg > li:first-child > a,
.pagination-lg > li:first-child > span {
    border-top-left-radius: 6px;
    border-bottom-left-radius: 6px;
}
.pagination-lg > li:last-child > a,
.pagination-lg > li:last-child > span {
    border-top-right-radius: 6px;
    border-bottom-right-radius: 6px;
}
.pagination-sm > li > a,
.pagination-sm > li > span {
    padding: 5px 10px;
    font-size: 12px;
    line-height: 1.5;
}
.pagination-sm > li:first-child > a,
.pagination-sm > li:first-child > span {
    border-top-left-radius: 3px;
    border-bottom-left-radius: 3px;
}
.pagination-sm > li:last-child > a,
.pagination-sm > li:last-child > span {
    border-top-right-radius: 3px;
    border-bottom-right-radius: 3px;
}
[class^="imghvr-shutter-out-"]:before, [class*=" imghvr-shutter-out-"]:before, [class^="imghvr-"] figcaption, [class*=" imghvr-"] figcaption {
    background-color: rgba(0,0,0,0.4) !important;
}

.wrap{
    width: 1200px;
    margin: 0 auto;
}
.header{
    position: absolute;
    left: 0;
    width: 100%;
    top: 0;
    z-index: 9999;
    color: #FFFFFF;
}
.header .wrap{
    display: flex;
    align-items: center;
    height: 100px;
}
.nav{
    margin-left: auto;
    display: flex;
    align-items: center;
    font-size: 17px;
}
.nav-item{
    height: 44px;
    padding: 0 15px;
    position: relative;
    z-index: 9999;
}
.nav-item-a{
    display: flex;
    height: 44px;
    box-sizing: border-box;
    padding: 0 20px;
    justify-content: center;
    align-items: center;
}
.nav-item-hover,.nav-item:hover{
    background: rgba(255,255,255,0.8);
    color: #259cf4;
}
.nav-sub{
    position: absolute;
    top: 44px;
    right: 0;
    width: 200px;
    background: #FFFFFF;
    color: #333333;
    padding: 20px 0;
    border-radius: 10px 0 10px 10px;
}
.nav-sub-item{

}
.nav-sub-item:hover{
    background: #259cf4;
    color: #FFFFFF;
}
.nav-sub-item-a{
    height: 44px;
    display: flex;
    align-items: center;
    padding: 0 20px;
}
#tab-header{
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 20px;
}
.tab-header-item{
    display: block;
    width: 160px;
    height: 40px;
    line-height: 40px;
    border-radius: 20px;
    text-align: center;
    font-size: 17px;
}
.tab-header-item.active{
    background: #259cf4;
    color: #ffffff;
}
#tab-content{
    margin-top: 60px;
}
.tab-content-item{
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}
.forum-cover{
    width: 100%;
    height: 200px;
    object-fit: cover;
}