#rts-chat-root { position: fixed; right: 16px; bottom: 16px; z-index: 999999; }
.rts-hidden { display: none !important; }
.rts-chat-bubble { background:#2271b1; color:#fff; border-radius:999px; padding:10px 14px; cursor:pointer; box-shadow:0 2px 8px rgba(0,0,0,.2); }
.rts-chat-panel { width: 320px; max-width: 90vw; background:#fff; border:1px solid #c3c4c7; border-radius:8px; overflow:hidden; box-shadow:0 8px 28px rgba(0,0,0,.25); }
.rts-chat-head { background:#f0f6ff; border-bottom:1px solid #cfe3ff; padding:8px 10px; display:flex; align-items:center; justify-content:space-between; }
.rts-chat-head button { border:none; background:transparent; font-size:18px; cursor:pointer; }
.rts-chat-body { height: 260px; overflow:auto; padding:10px; background:#fbfbfc; }
.rts-chat-input { display:flex; gap:6px; padding:8px; border-top:1px solid #eee; }
.rts-chat-input input { flex:1; }
.msg { margin:8px 0; }
.msg .content { display:inline-block; padding:6px 8px; border-radius:6px; border:1px solid #ddd; background:#fff; }
.msg.a .content { background:#f0f7ff; border:1px solid #cfe3ff; }