.floating-chat-btn{position:fixed;bottom:30px;right:30px;width:60px;height:60px;background:#007bff;color:#fff;border-radius:50%;text-align:center;line-height:60px;font-size:24px;box-shadow:0 4px 10px rgba(0,0,0,0.3);cursor:pointer;z-index:9999;transition:transform .3s}
.floating-chat-btn:hover{transform:scale(1.1)}