#cartel-chat-root{position:fixed;bottom:20px;right:20px;z-index:99999;font-family:Arial,Helvetica,sans-serif}
#cartel-chat-btn{width:56px;height:56px;border-radius:50%;border:none;background:#0a3e4b;color:#fff;font-size:24px;cursor:pointer;box-shadow:0 4px 14px rgba(0,0,0,.25)}
#cartel-chat-panel{display:none;width:320px;max-width:92vw;height:420px;max-height:70vh;background:#fff;border:1px solid #e8e8e8;border-radius:12px;box-shadow:0 8px 28px rgba(0,0,0,.18);flex-direction:column;overflow:hidden;margin-bottom:10px}
#cartel-chat-panel.open{display:flex}
#cartel-chat-head{background:#0a3e4b;color:#fff;padding:10px 12px;font-size:14px;font-weight:bold}
#cartel-chat-msgs{flex:1;overflow-y:auto;padding:10px;font-size:13px;line-height:1.4;background:#fafafa}
.cartel-msg{margin:0 0 8px;padding:8px 10px;border-radius:8px;max-width:92%;word-wrap:break-word}
.cartel-msg.user{background:#e8f4f6;margin-left:auto}
.cartel-msg.bot{background:#fff;border:1px solid #e0e0e0}
#cartel-chat-form{display:flex;border-top:1px solid #e8e8e8}
#cartel-chat-input{flex:1;border:none;padding:10px;font-size:13px;outline:none}
#cartel-chat-send{border:none;background:#0a3e4b;color:#fff;padding:0 14px;cursor:pointer;font-size:13px}