.waterfall-columns {
    column-count: 4; /* 4列 */
    column-gap: 20px; /* 列间距 */
}

.column-item {
    background: white;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    break-inside: avoid; /* 防止项目被分割到两列 */
    margin-bottom: 20px;
    transition: transform 0.3s ease;
}

.column-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
}

.column-item img {
    width: 100%;
    height: auto;
    display: block;
}

.column-item .content {
    padding: 15px;
}

.column-item h3 {
    margin-bottom: 10px;
    font-size: 16px;
    color: #333;
}

.column-item p {
    font-size: 14px;
    color: #666;
    line-height: 1.5;
}

/* 响应式设计 */
@media (max-width: 1200px) {
    .waterfall-columns {
        column-count: 3;
    }
}

@media (max-width: 768px) {
    .waterfall-columns {
        column-count: 2;
    }
}

@media (max-width: 480px) {
    .waterfall-columns {
        column-count: 1;
    }
}