header {
    width: 100%;
    height: 1rem;
    position: fixed;
    top: 0;
    background: transparent;
    z-index: 100;
    transition: all 0.3s;
    border-bottom: 0.01rem solid rgba(255,255,255,0.3);
}

.header-bg,.header-bg-search {
    background-color: #ffffff;
}

.header-main {
    display: flex;
    align-items: center;
    margin: 0 auto;
    justify-content: center;
}

.logo {
    width: 2.93rem;
    height: 0.58rem;
    margin-left: 2rem;
    box-shadow: none;
}

.logo img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: brightness(0) invert(1);
}

.nav {
    display: flex;
    height: 100%;
    line-height: 1rem;
    margin-left: 1.43rem;
}

.nav>div {
    margin-left: 0.6rem;
    height: 100%;
    width: max-content;
}

.nav>div>a {
    font-weight: 400;
    font-size: 0.18rem;
    text-align: center;
    color: #ffffff;
    display: block;
    font-weight: 400;
    position: relative;
}

.nav>div>a::after {
    content: '';
    width: 0;
    height: 0.02rem;
    background: #0055A7;
    position: absolute;
    bottom: 0;
    left: 0;
    transition: all .3s;
}

.nav div:hover a {
    color: #0055A7;
}

.nav>div:hover a::after {
    width: 100%;
}

.nav div:first-child {
    margin-left: 0;
}

.header-r {
    margin-left: 0.6rem;
    height: 100%;
    display: flex;
    align-items: center;
}

.header-r .headerSearch {
    width: 0.2rem;
    height: 0.2rem;
    ;
}

.header-r .headerSearch .Search_img1 {
    filter: brightness(0) invert(1);
}

.headerVr,
.headerVideo {
    height: 0.2rem;
    display: flex;
    padding-left: 0.1rem;
}

.vr-img,
.video-img {
    width: 0.2rem;
    height: 0.2rem;
}

.vr-img img,
.video-img img {
    filter: brightness(0) invert(1);
}

.headerVr a,
.headerVideo a {
    font-size: 0.16rem;
    color: #ffffff;
    font-weight: 400;
    padding: 0 0.1rem;
}

.headerVr {
    margin-left: 0.72rem;
}

.headerVideo {
    border-left: 0.01rem solid #ffffff;
}


/* 下拉菜单 */
.navDown {
    background: #F8F8F8;
    position: absolute;
    height: 0rem;
    top: 1rem;
    width: 100vw;
    left: 50%;
    transform: translateX(-50%);
    opacity: 0;
    transition: all 0.3s;
    overflow: hidden;
}

.navDownbox {
    display: flex;
}

.navDown-l {
    height: 100%;
    width: 5.85rem;
    padding: 0.8rem 0.85rem 0.9rem 2rem;
    border-right: 0.02rem solid #E1E1E1;
}

.navDown-l-t {
    width: 1.04rem;
    height: 0.37rem;
    font-family: Source Han Sans CN, Source Han Sans CN;
    font-weight: bold;
    font-size: 0.26rem;
    color: #000000;
    display: flex;
    align-items: center;
}

.navDown-l-img {
    margin-top: 0.3rem;
    width: 3rem;
    height: 2rem;
}

.nav-act .navDown {
    opacity: 1;
    height: 4.4rem;
}

.navDown-r {
    padding: 0.8rem 0rem 0.92rem 1.07rem;
    display: flex;
    flex-wrap: wrap;
    width: 13.45rem;
    height: 4.4rem;
    align-content: space-between;
    gap: 0.3rem;
}

.navDownIcon {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    height: 1.04rem;
    width: 2.4rem;
}

.navDownIcon img {
    filter: brightness(0.3) invert(0.5);
}

.navDownIcon:hover span {
    color: #0055A7;
}

.navDownIcon:hover img {
    filter: unset;
}

.navDownIcon>img {
    width: 0.65rem;
    height: 0.65rem;
}

.navDownIcon>span {
    font-family: Microsoft YaHei, Microsoft YaHei;
    font-weight: 400;
    font-size: 0.18rem;
    color: #333333;
    display: flex;
    align-items: center;
    height: 0.24rem;
    margin-top: 0.15rem;
}
.header-r .headerSearch:hover .Search_img1,
.header-r .headerSearch .Search_img2{
    display: none;
}
.header-r .headerSearch:hover .Search_img2{
    display: block;
}

/* 变色后 */
.header-bg{
    box-shadow: 0rem 0.03rem 0.06rem 0.01rem rgba(77, 77, 77, 0.16);
}
.header-bg .nav a {
    color: #000000;
}

.header-bg .header-r .headerSearch .Search_img1 {
    filter: brightness(1) invert(0);
}

.header-bg .headerVr a,
.header-bg .headerVideo a {
    color: #000000;
}

.header-bg .logo img {
    filter: brightness(1) invert(0);
}

.header-bg .headerVideo {
    border-left: 0.01rem solid #000000;
}

.header-bg .vr-img img,
.header-bg .video-img img {
    filter: brightness(1) invert(0);
}

.header-bg .nav a:hover {
    color: #0055A7;
}

.header-bg .nav a:hover::after {
    background-color: #0055A7;
}
.search-img{
        filter: brightness(0) invert(1);
}
.search-img:hover{
    filter: unset;
}
.header-bg .search-img:hover{
    filter: unset;
}
.header-bg .search-img{
     filter: brightness(0.5) invert(0);
}