/* 管理后台样式 */
.hidden { display: none; }

.tab-link.active {
    background-color: #eff6ff;
    color: #1d4ed8;
    font-weight: 600;
    border-right: 3px solid #2563eb;
}

.tab-content {
    animation: fadeIn 0.2s ease-in;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(5px); }
    to { opacity: 1; transform: translateY(0); }
}

table th {
    position: sticky;
    top: 0;
    z-index: 1;
}

tbody tr:hover {
    background-color: #f8fafc;
}

.hot-bar {
    height: 24px;
    border-radius: 4px;
    transition: width 0.5s ease;
}

#school-modal {
    transition: opacity 0.2s;
}

.btn-group .btn {
    margin-right: 4px;
}

.btn-sm {
    padding: 4px 8px;
    font-size: 12px;
    border-radius: 4px;
}