.header-brand {
    background-color: #f8f9fa;
}
.image-brand-hmv {
    width: 150px;
}
.image-brand-xinlei {
    width: 120px;
}
.site-brand {
    text-align: center;
}
@media (min-width: 768px) {
    .image-brand-hmv {
        width: 200px;
    }
    .image-brand-xinlei {
        display: none;
    }
    .site-brand {
        text-align: left;
    }
}