.sider-tool{
    background: #fff;
    position: fixed;
    bottom: 30%;
    right: 20px;
    z-index: 9999;
    display: block;
    border-radius: 50px;
    box-shadow: 0px 2px 16px 0px rgba(30, 39, 48, 0.16);
}
.sider-tool>div{
    padding: 15px 15px;
    position: relative;
    transition: transform 1s ease; /* 平滑过渡效果 */
}
.sider-tool>div:nth-child(1){
    border-radius: 50px 50px 0 0;
}
.sider-tool>div:last-child{
    border-radius: 0 0 50px 50px;
}
.sider-tool>div:not(:last-child){
    border-bottom: rgb(239, 239, 239) solid 1px;
}
.sider-tool img{
    width: 25px;
    height: 24px;
}
.sider-tool>div:hover{
    background-color: rgb(28, 181, 21);
}
.sider-tool>div:hover .boxwin{
    animation: rightToLeft 1s forwards; 
}
.boxwin{
    position: absolute;
    top:0;
    right: -275px;
    width: 240px;
    text-align: center;
    background-color: rgb(28, 181, 21);
    color: #fff;
    font-size: 18px;
    font-weight: bold;
    padding: 20px 10px;
    opacity: 0;
}

@keyframes rightToLeft {
    from {
        right: -220px;
        opacity: 0;
    }
    to {
        right: 55px; 
        opacity: 1;
    }
}