.mobile-footer-nav {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 999;
    background-color: #ffffffee;
    backdrop-filter: blur(8px);
    border-top: 1px solid #e5e7eb;
    box-shadow: 0 -2px 10px rgba(0,0,0,0.05);
    transition: all 0.3s ease;
}

.mobile-footer-nav ul {
    display: flex;
    list-style: none;
    margin: 0;
    padding: 8px 0;
    min-height: 56px;
}

.mobile-footer-nav li {
    flex: 1;
    text-align: center;
    padding: 4px 0;
}

.mobile-footer-nav a {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    color: #333;
    height: 100%;
}

.mobile-footer-nav .mfn-icon {
    width: 32px;
    height: 32px;
    margin-bottom: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.mobile-footer-nav .mfn-icon img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
}

.mobile-footer-nav .mfn-text {
    font-size: 12px;
    line-height: 1.2;
}

.mobile-footer-nav a.active,
.mobile-footer-nav a:hover {
    color: #2196F3;
}

/* 桌面端隐藏（如需全设备显示，移除以下代码） */
@media (min-width: 768px) {
    .mobile-footer-nav {
        display: none;
    }
}