/* 移动端底部粘性固定导航 */
.mobile-bottom-nav {
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 60px;
    background-color: #5a6065;
    display: none;
    justify-content: space-around;
    align-items: center;
    z-index: 1000;
    box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.1);
}

.mobile-bottom-nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    color: #ffffff;
    font-size: 12px;
    flex: 1;
    height: 100%;
    transition: all 0.3s ease;
    padding: 5px 0;
}

.mobile-bottom-nav-item:hover {
    background-color: rgba(255, 255, 255, 0.1);
}

.mobile-bottom-nav-item:active {
    background-color: rgba(255, 255, 255, 0.2);
}

.mobile-bottom-nav-icon {
    width: 24px;
    height: 24px;
    margin-bottom: 4px;
    fill: currentColor;
    transition: all 0.3s ease;
}

.mobile-bottom-nav-text {
    font-size: 12px;
    font-weight: 500;
}

/* 仅在移动端显示底部导航 */
@media (max-width: 768px) {
    .mobile-bottom-nav {
        display: flex;
    }

    /* 调整浮动按钮位置，避免与底部导航重叠 */
    .floating-buttons-container {
        bottom: 80px;
    }
}

@media (max-width: 480px) {
    .floating-buttons-container {
        bottom: 70px;
    }
}