.app {
    width: 1200px;
    display: flex;
    justify-content: space-between;
    position: relative;
}

.box {
    width: 280px;
    overflow: hidden;
    background: #f6f6f6;
    box-sizing: border-box;
    padding: 0 15px 25px 15px;
}

.box a {
    display: flex;
    flex-direction: column;
    align-items: center;
    color: #535353;
    text-decoration: none;
}

.box a:hover {
    color: #e52d67;
}

.imgBox {
    width: 280px;
    height: 186.67px;
    overflow: hidden;
}

.imgBox img {
    width: 100%;
    height: 100%;
    transition: all 0.6s linear;
}


.title {
    margin-bottom: 20px;
    font-size: 20px;
}

.detail {
    font-size: 14px;
    line-height: 160%;
    text-align: justify;
    width: 100%;
}

/*鼠标hover效果*/

.box>a::after {
    content: '';
    width: 280px;
    position: absolute;
    background: #e52d67;
    bottom: 0;
    height: 0px;
    transition: height 0.3s linear;
    /*利用伪类高度，实现动画效果*/
}

.box>a:hover::after {
    height: 10px;
}

.box:hover img {
    transform: scale(2);
}