/* 全局样式 */
body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 100;
}

.container {
    width: 840px;
    margin: 0 auto;
    padding: 50px;
    background-color: #fff;
}

/* 图片网格布局 */
.image-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 50px 20px;
}

.image-item {
    text-align: center;
    position: relative;
}

.image-item img {
    width: 180px;
    height: 180px;
    transition: all 0.3s ease; /* 所有属性变化都应用过渡效果 */
    border-radius: 6px;
    overflow: hidden;
    border: 0.5px solid #CCCCCC;
    box-shadow: 0 0 0 rgba(0, 0, 0, 0); /* 初始状态无阴影 */
    transform: translateY(0); /* 初始位置 */
}

.image-item a {
    display: block;
    position: relative;
}

/* 覆盖层样式 */
.overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s;
}

.image-item:hover .overlay {
    opacity: 1;
}

.image-item:hover img {
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2); /* 添加阴影效果 */
	transform: scale(1.05);
	transform: translateY(-5px);
}

.overlay p {
    margin: 0;
    font-size: 14px;
    text-align: center;
}