.narsPage-head {
    width: 100%;
    position: relative;
    background: #fff;
}

.narsPage-head .headcenter {
    height: 3.75rem;
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    max-width: 75rem;
    margin: 0 auto;
}

.narsPage-head .headcenter .navitem {
    position: relative;
    margin-left: 4.375rem;
    color: #000;
    font-size: 1.0rem;
    cursor: pointer;
    display: inline-block;
}

.narsPage-head .headcenter .downimg {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    height: 15px;
    margin-left: 2px;
}

.narsPage-head .headcenter .children {
    display: none;
    position: absolute;
    top: 2.5rem;
    list-style: none;
    font-size: 1rem;
    color: #000;
    background-color: #fff;
    border-radius: 5px;
    box-shadow: 0 0 1px 0 #88909A;
    z-index: 9999;
}

.narsPage-head .headcenter .children li {
    padding: 0.5rem 1rem;
}

.narsPage-head .headcenter .navitem.hover,
.narsPage-head .headcenter .navitem:hover {
    color: #004bfa;
}

.narsPage-head .headcenter .logico {
    width: 12.375rem;
    height: 3.875rem;
}