.btn-li{
    margin: 20px auto 50px 105px;
}

.btn-li ul li {
    display: inline-block;
    margin-right: 10px;
}

.btn-li ul li a {
    display: inline-block;
    width: 45px;
    height: 40px;
    border: 1px solid #07913a;
    background: #fff;
    border-radius: 8px;
    font-size: 17px;
    color: #666;
    text-decoration: none;
    font-family: '微软雅黑';
    z-index: 1;
    position: relative;
    line-height: 38px;
    padding-left: 15px;
}

.btn-li ul li a::before {
    content: "";
    position: absolute;
    width: 44px;
    height: 40px;
    top: 0;
    left: 0;
    bottom: 0;
    right: 0;
    background-color: #07913a;
    border-radius: 8px;
    z-index: -1;
    transform: scale(0);
    transition: 0.5s;
}

.btn-li ul li a:hover{
    color: #fff;
}

.btn-li ul li a:hover::before {
    transform: scale(1,1);
}

.product-a{
    font-size: 20px;
    color: #000;
    font-weight: 550;
    text-decoration: none; 
    color: inherit; 
    cursor: pointer;
}
.product-a-s{
    font-size: 16px;
    font-weight: 400;
    text-decoration: none; 
    color: inherit; 
    cursor: pointer;
}