/*侧边导航栏特效*/
.btn{
    background-color: white;
    border-top-right-radius: 10px;
    border-bottom-left-radius: 10px;
    transition:all 1s;
    position:relative;
    white-space:nowrap;
    overflow:hidden;
    text-overflow:ellipsis;
    width: 94%;
    text-align: initial !important;
    margin-left:-4%;
}
.sidenav{
    height:4rem;
    width:4rem;
    opacity: 0;
}
.div8{
    position:relative;
}
.btn::before{
    content: " ";
    border-left: 5px solid transparent;
    border-top: 5px solid transparent;
    width: 0px;
    height: 0px;
    position: absolute;
    top: 0px;
    left: 0px;
    transition:all 1s;
}
.btn::after{
    content: " ";
    border-right: 5px solid transparent;
    border-bottom: 5px solid transparent;
    width: 0px;
    height: 0px;
    position: absolute;
    bottom: 0%;
    right: 0%;
    transition:all 1s;
}
.btn:hover::before{
    border-color: black;
    width:100%;
    height:100%;
}
.btn:hover::after{
    border-color: black;
    width:100%;
    height:100%;
}
.btn a{
    font-size: 20px;
    font-weight: 600;
    text-decoration: none;
    color:black;
    white-space: nowrap;
    overflow: hidden;
    display: block;
    text-overflow: ellipsis;
}
/*侧边导航*/
.my-left-nav {
    position: sticky;
    height:375px;
    top:20%;
     display:flex;
    align-items: center;
    justify-content: right; 
    padding-right: 1%;
   width:75%;
   height:fit-content;
    }

    .my-left-nav ul {
        height:100%;
        list-style-type:none;
        padding:0;
    }
    .my-left-nav ul li{
        margin:5% 15%;
    }
     
    .nav-title{
        margin-left:15%;
        margin-top:5%;
        font-size: 30px;
    }
    /*盒子阴影效果*/
    .nav-box-shadow{
        box-shadow: rgba(136, 165, 191, 0.48) 6px 2px 16px 0px, rgba(255, 255, 255, 0.8) -6px -2px 16px 0px;
        margin-left:-2%;
    }