.ols-page .service .ser-list li {
    width: 25%;
}
.ols-page .service .ser-list li a {
    display: flex;
    margin: 15px;
    justify-content: center;
    align-items: center;
    
}

.ols-page .service .ser-list li sup  {
    font-size: 0.6em; /* 字体更小 */
    vertical-align: super; /* 确保是上标 */
    margin-left: 2px; /* 和主标题加一点间距 */
	color: #777;
    
}