.level-product-list ul {
    display: flex;
    flex-wrap: wrap;
}

.level-product-list ul li {
    display: block;
    /*float: left;*/
    margin: 20px 0px 0 10px;
}

.level-product-list ul li span {
    width: 260px;
    height: 30px;
    display: flex;
    justify-content: center;
    /* 水平居中 */
    align-items: center;
    /* 垂直居中 */
    font-size: 14px;
}

.level-product-list ul li span:hover {
    color: #104492;
    text-decoration: underline;
}

.level-product-list ul li .Square {
    width: 258px;
    height: 258px;
    border: 1px solid #c7c7c7;
    display: flex;
    justify-content: center;
    /* 水平居中 */
    align-items: center;
    /* 垂直居中 */
}

.level-product-list ul li .Square:hover {
    border: 1px solid #104492;
}

.level-product-list ul li .Square:hover img {
    opacity: 0.7;
}

.level-item-content>p {
    margin-left: 10px;
    font-size: 14px;
}

.level-item-content h2 {
    margin-left: 10px;
    color: #333333;
}

.Explosion-Proof>h4,
p {
    margin-top: 5px;
    margin-bottom: 5px;
}

hr {
    color: #999999;
}