header {
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 100;
    background-color: inherit;
}

header .sys-bar {
    width: 100%;
    color: #fff;
    padding: 1rem;
    display: flow-root;
}

.clear-fix {
    width: 100%;
    padding-top: 9.5rem;
}

.sys-bar .sys-bar-item {
    padding: 0 1rem;
    margin: 0 3rem;
    color: #fff;
    font-size: 1.6rem;
}

.text-white,
.text-white:hover {
    color: #fff;
}

.am-btn-inherit {
    background-color: inherit;
    border-color: #fff;
    border-radius: .5rem;
}

.am-btn-inherit:hover,
.am-btn-inherit:focus {
    color: #fff;
}

header .nav {
    width: 100%;
    background-color: #fff;
    height: 70px;
}

header .user-brand {
    padding: 1rem 1rem;
    font-size: 1.6rem;
}

@media screen and (max-width: 640px) {
    header .user-brand {
        padding: 0 0 1rem;
        font-size: 1.6rem;
        border-bottom: 1px solid #aaa;
    }
}