.vprc-chat{border:1px solid #e2e8f0;border-radius:12px;padding:12px;max-width:680px}
.vprc-chat-log{height:280px;overflow:auto;padding:8px;background:#f8fafc;border-radius:8px;margin-bottom:8px}
.vprc-chat-msg{margin:6px 0}
.vprc-chat-msg .role{font-weight:600;margin-right:6px}
.vprc-chat-row{display:flex;gap:8px}
.vprc-chat-row input{flex:1;padding:10px;border-radius:8px;border:1px solid #cbd5e1}
.vprc-chat-row button{padding:10px 14px;border-radius:8px;border:1px solid #0ea5e9;background:#0284c7;color:#fff;cursor:pointer}