.st-rag-chat{border:1px solid #ddd;border-radius:10px;padding:12px;max-width:760px;background:#fff}
.st-rag-messages{min-height:0;max-height:520px;overflow:auto;margin-bottom:0}
.st-rag-messages:empty{display:none}
.st-rag-messages:not(:empty){margin-bottom:10px}
.st-rag-msg{padding:10px 12px;border-radius:8px;margin:8px 0;line-height:1.65;white-space:normal}
.st-rag-user{background:#eef6ff;margin-left:15%}
.st-rag-bot{background:#f6f6f6;margin-right:10%}
.st-rag-form{display:flex;gap:8px;align-items:flex-end}
.st-rag-input{flex:1;padding:10px;border:1px solid #ccc;border-radius:8px;font-size:16px;line-height:1.6;min-height:calc(1.6em * 3 + 22px);max-height:220px;resize:vertical;box-sizing:border-box}
.st-rag-submit{padding:10px 16px;border:0;border-radius:8px;cursor:pointer}
@media (max-width:600px){.st-rag-form{display:block}.st-rag-submit{margin-top:8px;width:100%}.st-rag-user{margin-left:0}.st-rag-bot{margin-right:0}}

.st-rag-source{display:inline-flex;align-items:center;gap:3px;font-size:12px;font-weight:700;border-radius:999px;padding:2px 8px;margin-right:6px;background:#e7e7e7;color:#333;vertical-align:baseline;line-height:1.4;white-space:nowrap}
.st-rag-source-faq{background:#e8f5e9;color:#1b5e20;border:1px solid #c8e6c9}
.st-rag-source-ai{background:#e3f2fd;color:#0d47a1;border:1px solid #bbdefb}
.st-rag-source-error{background:#ffebee;color:#b71c1c;border:1px solid #ffcdd2}
.st-rag-answer-note{margin-top:8px;font-size:12px;color:#666;line-height:1.6}
.st-rag-version{margin-top:4px;font-size:11px;color:#999;line-height:1.4}
.st-rag-bot h6{margin:10px 0 6px;font-size:1em;line-height:1.5;font-weight:600}
.st-rag-bot p{margin:0 0 8px;line-height:1.75}
.st-rag-bot ul{margin:0 0 8px 1.25em;padding:0}
.st-rag-bot li{margin:0 0 4px;line-height:1.7}
.st-rag-feedback{margin-top:10px;padding-top:10px;border-top:1px solid #e5e5e5;font-size:14px}
.st-rag-feedback-question{margin-bottom:8px;color:#444}
.st-rag-feedback-actions,.st-rag-feedback-follow{display:flex;gap:8px;flex-wrap:wrap}
.st-rag-feedback button,.st-rag-feedback a{display:inline-block;padding:8px 12px;border-radius:8px;text-decoration:none;border:1px solid #ccd0d4;background:#fff;color:#2271b1;cursor:pointer}
.st-rag-feedback button:hover,.st-rag-feedback a:hover{background:#f6f7f7}
.st-rag-feedback-thanks,.st-rag-feedback-followtext{margin-top:8px;color:#444;line-height:1.7}