/* 标签筛选样式 */
.case-item.hide,
.article-card.hide {
    display: none !important;
}

.case-item.show,
.article-card.show {
    display: block !important;
}

.tab-btn.active {
    background-color: #007bff;
    color: white;
    border-color: #007bff;
}

.tab-btn {
    transition: all 0.3s ease;
}

.tab-btn:hover {
    background-color: #0056b3;
    color: white;
}

/* 动画效果 */
.case-item,
.article-card {
    transition: opacity 0.3s ease;
}

.case-item.show,
.article-card.show {
    opacity: 1;
}

.case-item.hide,
.article-card.hide {
    opacity: 0;
}