diff --git a/pipeline_bidding/bid_analysis_capability.py b/pipeline_bidding/bid_analysis_capability.py
index 3e8babb..35de7d2 100644
--- a/pipeline_bidding/bid_analysis_capability.py
+++ b/pipeline_bidding/bid_analysis_capability.py
@@ -516,15 +516,16 @@ async def create_chapter_outline(project_id, chapters="", who=None, agent_id=Non
                 if (tgt and tgt == cno) or (nm and (nm in title or title in nm)):
                     matched.append(s["id"])
                     msum += to_float(s.get("max_score"), 0.0)
+            sec = str(it.get("section") or _infer_section(title) or "technical")[:30]
             await sor.C("bid_chapters", {
                 "id": new_id(), "project_id": project_id,
                 "chapter_no": cno, "parent_no": str(it.get("parent_no") or "")[:30],
-                "title": title, "section": str(it.get("section") or "technical")[:30],
+                "title": title, "section": sec,
                 "scoring_item_ids": json.dumps(matched, ensure_ascii=False),
                 "outline": str(it.get("outline") or "")[:20000],
                 "status": CH_PENDING, "version": 1, "revise_count": 0,
                 "max_score": msum or None,
-                "assignee_role": "agent.bid_writer",
+                "assignee_role": "agent.bid_biz_writer" if sec == "business" else "agent.bid_writer",
                 "order_no": idx + 1,
             })
             created += 1