html, body {
    height: 100%;
    background-color: #f8f9fa;
}

.login-card {
    max-width: 400px;
    width: 100%;
}

.beian-footer {
    font-size: 12px;
    color: #888;
}

    .beian-footer a {
        color: inherit;
        text-decoration: none;
    }