.sub2 {
    height: 30px;
    font-size: 13px;
    padding-top: 4px;
    background-color: #f9f9f9;
}


/* 自定义底部菜单样式 */
.wechat-footer {
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100vw;
    background-color: #fff;
    border-top: 1px solid #eee;
    display: flex;
    justify-content: space-around;
    padding: 5px 0;
    box-shadow: 0 -2px 3px rgba(0,0,0,0.1);
}

.wechat-footer a {
    text-decoration: none;
    color: #333;
    display: block;
    text-align: center;
    font-size: 13px;
}

.wechat-footer a i {
    display: block;
    margin-bottom: 5px;
    font-size: 16px;
}