.head {
    width: 100%;
    height: var(--height-head);
    position: fixed;
    top: 0;
    left: 0;
    background-color: var(--color-light);
    box-shadow: 0 3px 3px rgba(0, 0, 0, 0.3);
    z-index: 0;
    color: var(--color-dark);
}

.head .center {
    margin: 0 auto;
    width: var(--width-workspace);
    height: 100%;
    display: flex;
    justify-content: space-between;
}

.head .center .left {
    min-width: 180px;
    height: 100%;
    display: flex;
    align-items: center;
    font-size: 18px;
    font-weight: 800;
    color: var(--color-text-header-left);
}

.head .center .left .logo {
    width: 38px;
    height: 38px;
}

.head .center .left .sys-title {}

.head .center .left .sys-title-sub {
    font-size: 14px;
    font-weight: unset;
}

.head .center .right {
    height: 100%;
    padding-left: 60px;
    display: flex;
    justify-content: right;
}

.head .center .head-item {
    height: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 0 10px;
    font-size: var(--font-size-head);
    cursor: pointer;
    position: relative;
}