diff --git a/backend/tests/test_doc_center_20260924.py b/backend/tests/test_doc_center_20260924.py
index 6898e141..6136395c 100644
--- a/backend/tests/test_doc_center_20260924.py
+++ b/backend/tests/test_doc_center_20260924.py
@@ -209,7 +209,13 @@ class TestProdContentCanary:
         body = r.json()
         assert body["available"] is True and body["skipped"] == [], body["skipped"]
         assert body["count"] >= 20, f"迁移应有 20 篇，实际 {body['count']}"
-        assert [c["key"] for c in body["categories"]] == ["term", "formula", "practice", "faq"]
+        # 口径（2026-10-12 失鲜收口）：分类集合随内容扩展（当日新增 manual/模块手册，order 5），
+        # 故只断言「必备分类在场 + 相对顺序正确」，不再硬编码全集，避免下次扩类再留假红。
+        keys = [c["key"] for c in body["categories"]]
+        required = ["term", "formula", "practice", "faq"]
+        assert set(required) <= set(keys), \
+            f"生产内容缺必备分类：{sorted(set(required) - set(keys))}；实际 {keys}"
+        assert [k for k in keys if k in required] == required, f"必备分类相对顺序异常：{keys}"
         for slug in ("term-kpi", "formula-achievement-rate", "practice-threshold-tips", "faq-data-sync"):
             d = client.get(f"/api/cma/docs/{slug}", headers=auth_header(token)).json()
             assert d["title"] and d["content"].strip()