body{
    overflow-x:hidden;
}
.side-ad{
    position:fixed;
    top:120px;
    width:160px;
    min-height:600px;
    background:linear-gradient(180deg,#0f1f44,#091224);
    border:1px solid #284b88;
    border-radius:18px;
    z-index:50;
    overflow:hidden;
    box-shadow:0 0 25px rgba(0,0,0,.45);
}
.side-ad img{
    width:100%;
    height:auto;
    display:block;
}
.side-ad .ad-inner{
    padding:14px;
    text-align:center;
}
.side-ad-left{
    left:15px;
}
.side-ad-right{
    right:15px;
}
.side-ad h3{
    color:#7fe7ff;
    margin:0 0 10px;
}
.side-ad p{
    color:#b9c9ea;
    font-size:14px;
}
.side-ad .ad-btn{
    display:inline-block;
    margin-top:10px;
    padding:10px 14px;
    border-radius:10px;
    background:#5b6cff;
    color:#fff;
}
@media(max-width:1500px){
    .side-ad{
        display:none;
    }
}