html {
    height: 100%;
}

body {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    margin: 0;
}

main {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
}

.mfb-logo {
    width: 270px;
    height: auto;
    flex-shrink: 0; /* 防止 logo 被压缩 */
}

footer {
    background-color: #f8f9fa;
    padding: 10px 0;
    text-align: center;
    font-family: 'Helvetica Neue', Arial, sans-serif;
    color: #6c757d;
    border-top: 1px solid #e9ecef;
    line-height: 1.6;
}

footer p {
    margin: 10px 0;
    font-size: 14px;
}

footer a {
    text-decoration: none;
    color: #6c757d;
    transition: color 0.3s;
}
footer a:hover {
    color: #6ab0de !important;
}