.exhibitions-grid-container {
    width: 80%;
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr)); /* 关键：限制最小宽度 */
    box-sizing: border-box; /* 包含内边距和边框 */
    justify-content: space-between; /* 子项平均分布 */
    margin: 0 auto;
    row-gap: 80px;    /* 上下间距30px */
    column-gap: 10px; /* 左右间距10px */
}

.exhibitions-grid-item {
    width: 328px;
    min-width: 0; /* 防止内容撑宽 */
    margin: 0 auto;
    padding: 0;
    font-size: 14px;
    border: 1px solid #ddd;
    box-sizing: border-box;
    overflow: hidden; /* 可选：隐藏溢出内容 */
}

.exhibitions-item-title {
    font-size: 17px;
    color: #004277;
    padding: 10px;
    font-weight: 600;
}

.exhibitions-item-content {
    font-size: 14px;
    color: #666666;
    padding: 10px;
}

.exhibitions-item-img {

}

@media (max-width: 768px) {

    .exhibitions-grid-container {
        width: 100%;
        grid-template-columns: 1fr; /* 单列 */

        row-gap: 60px;    /* 上下间距30px */
    }

    .exhibitions-grid-item {
    }

    .exhibitions-item-title {
        font-size: 20px;
    }

    .exhibitions-hr {
        width: 90%;
    }

    .exhibitions-item-img img {
        width: 100%;
    }

}