.itemBox {
    display: flex;
    flex-wrap: wrap;
}

.itemBox .item {
    width: calc(25% - 60px);
    margin: 0 30px;
    margin-bottom: 30px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    align-items: center;
}

.itemBox .item img {
    width: 100%;
}

.itemBox .item h1 {
    font-size: 16px;
    margin: 0;
    line-height: 3;
}

@media screen and (max-width:1200px) and (min-width: 0px) {
    .itemBox .item {
        width: calc(25% - 30px);
        margin: 0 15px;
    }
}


@media screen and (max-width:992px) and (min-width: 0px) {
    .itemBox .item {
        width: calc(50% - 30px);
        margin: 0 15px;
    }
}






/* 相册组件 */
.bigimg {
    width: auto !important;
    height: auto !important;
    max-width: 75%;
    max-height: 75%;
    position: fixed;
    left: 0;
    top: 0;
    right: 0;
    bottom: 0;
    margin: auto;
    display: none;
    z-index: 9999;
    border: 10px solid #fff;
}

.mask {
    position: fixed;
    left: 0;
    top: 0;
    right: 0;
    bottom: 0;
    background-color: #000;
    opacity: 0.5;
    filter: Alpha(opacity=50);
    z-index: 98;
    transition: all 1s;
    display: none
}

.bigbox {
    width: 840px;
    background: #fff;
    border: 1px solid #ededed;
    margin: 0 auto;
    border-radius: 10px;
    overflow: hidden;
    padding: 10px;
}

.bigbox>.imgbox {
    width: 400px;
    height: 250px;
    float: left;
    border-radius: 5px;
    overflow: hidden;
    margin: 0 10px 10px 10px;
}

.bigbox>.imgbox>img {
    width: 100%;
}

.imgbox:hover {
    cursor: zoom-in
}

.mask:hover {
    cursor: zoom-out
}

.mask>img {
    position: fixed;
    right: 10px;
    top: 10px;
    width: 60px;
}

.mask>img:hover {
    cursor: pointer
}