#lara-ai-btn{position:fixed;right:20px;bottom:20px;width:64px;height:64px;border:none;padding:0;background:#fff;border-radius:50%;overflow:hidden;cursor:pointer;z-index:99999;box-shadow:0 8px 25px rgba(0,0,0,.18)}
#lara-ai-btn img{width:100%;height:100%;object-fit:cover}
#lara-ai-bubble{position:fixed;right:95px;bottom:32px;background:#fff;padding:10px 14px;border-radius:12px;box-shadow:0 4px 15px rgba(0,0,0,.12);font-size:14px;z-index:99998;display:none;white-space:nowrap}
#lara-chat-window{position:fixed;right:20px;bottom:95px;width:360px;height:500px;background:#fff;border-radius:16px;overflow:hidden;display:none;flex-direction:column;z-index:99999;box-shadow:0 15px 40px rgba(0,0,0,.20)}
.lara-header{background:#0d47a1;color:#fff;padding:14px;display:flex;justify-content:space-between;align-items:center}
.lara-header-left{display:flex;align-items:center;gap:10px}
.lara-header-left img{width:40px;height:40px;border-radius:50%}
.lara-header-left span{display:block;font-size:12px;color:#dbeafe;margin-top:2px}
#lara-close-btn{background:none;border:none;color:#fff;font-size:18px;cursor:pointer}
.lara-body{flex:1;overflow-y:auto;padding:15px;background:#fafafa}
.lara-bot-message{background:#eef5ff;padding:12px;border-radius:12px;line-height:1.6;max-width:85%;font-size:13px}
.lara-user-message{background:#1976d2;color:#fff;padding:12px;border-radius:12px;margin-top:10px;margin-left:auto;max-width:85%;font-size:13px}
.lara-chat-input{display:flex;gap:8px;padding:12px;border-top:1px solid #eee;background:#fff}
.lara-chat-input input{flex:1;padding:10px 12px;border:1px solid #ddd;border-radius:10px;outline:none}
.lara-chat-input input:focus{border-color:#1976d2;box-shadow:0 0 0 3px rgba(25,118,210,.12)}
.lara-chat-input button{border:none;background:#1976d2;color:#fff;padding:0 16px;border-radius:10px;cursor:pointer;font-weight:800}
@media(max-width:768px){#lara-ai-btn{right:14px;bottom:14px;width:56px;height:56px}#lara-ai-bubble{display:none!important}#lara-chat-window{left:10px;right:10px;width:auto;height:68vh;bottom:82px}}