.side-bar {
    bottom: 200px;
    position: fixed;
    right: 10px;
    z-index: 999;
}

.side-bar a {
    display: block;
    cursor: pointer;
    width: 46px;
    height: 46px;
    line-height: 46px;
    background: var(--color-primary);
    position: relative;
    text-align: center;
    box-sizing: border-box;
    border-radius: 5px;
}

.side-bar a+a {
    margin-top: 10px;
}

.side-bar a i {
    display: inline-block;
    font-size: 30px;
    color: var(--san-service-icon-color);
}

.side-bar a:last-child i {
    color: #fff;
    font-size: 22px;
}