.progress-charts {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
    margin-top: 20px;
}

.chart-container {
    background: var(--card-background);
    backdrop-filter: blur(10px);
    border-radius: var(--border-radius);
    padding: 20px;
    height: 300px;
}

.chart-container h3 {
    margin-bottom: 20px;
    color: var(--text-secondary);
    font-size: 1rem;
    text-align: center;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .progress-charts {
        grid-template-columns: 1fr;
    }

    .chart-container {
        height: 250px;
    }
}