.ncc-header {}

.header {
    /* height: 115px; */
    /* height: 0.58rem; */
    height: 0.8rem;
    left: 0;
    min-width: 3.20rem;
    position: fixed;
    top: 0;
    transition: top 0s ease;
    width: 100%;
    z-index: 9100024;
    background-color: rgba(0, 0, 0, .7);
}

.header_top {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 0.16rem;
    /* height: 0.57rem; */
    height: 0.8rem;
    position: relative;
    box-sizing: border-box;

}

.logo {
    /* width: 0.71rem;
    height: 0.5rem; */
        width: 1.2rem;
    height: 0.7rem;
    background: url(https://static.web.sdo.com/aion2/pic/gw/web1/images/logo2.png) no-repeat;
    background-size: contain;
}

.header_top_link {
    width: 0.8rem;
    display: flex;
    align-items: center;
    margin-right: 1.85rem;
}

.header_top_link_item {
    display: block;
    /* width: 50px; */
    margin-right: 0.3rem;
    font-size: 0.16rem;
    color: #ffff;
    white-space: nowrap;
}

.header_nav {
    width: 100%;
    display: flex;
    align-items: flex-end;
    justify-content: flex-start;
    /* height: 0.58rem; */
    height: 0.8rem;
}

.header_nav_item {
    line-height: 0.5rem;
    font-size: 0.18rem;
    color: #737174;
    text-align: center;
    width: 1.0rem;
    cursor: pointer;
    transition: all .3s;
    white-space: nowrap;
}

.header_nav_item_active, .header_nav_item:hover {
    color: #fff;
}

.btn_download {
    width: 1.9rem;
    height: 0.57rem;

    position: absolute;
    bottom: 0;
    right: 0;
    background: url(https://static.web.sdo.com/aion2/pic/gw/web1/images/btn_download.png) no-repeat;
    background-size: contain;

}
.btn-Sign{
    width: 1.9rem;
    height: 0.57rem;

    position: absolute;
    /* bottom: 0;
    right: 0; */
    top: 50%;
    transform: translateY(-50%);
    right: 0.05rem;
    background: url(https://static.web.sdo.com/aion2/pic/gw/web1/images/btn-Sign.png) no-repeat;
    background-size: contain;
}