diff --git a/config.py b/config.py
index db0b753..75bd402 100644
--- a/config.py
+++ b/config.py
@@ -325,7 +325,7 @@ YOUTUBE_API_KEY = os.getenv('YOUTUBE_API_KEY', '')
 # ==========================================
 # 系統版本與路徑
 # ==========================================
-SYSTEM_VERSION = "V10.420"
+SYSTEM_VERSION = "V10.421"
 LOG_FILE_PATH = os.path.join(BASE_DIR, 'logs/system.log')
 public_url = PUBLIC_URL  # 用於模板顯示
 
diff --git a/docs/memory/history_logs.md b/docs/memory/history_logs.md
index a04f832..cc0faaf 100644
--- a/docs/memory/history_logs.md
+++ b/docs/memory/history_logs.md
@@ -13,6 +13,7 @@
 ## 📅 詳細更新日誌 (考古存檔)
 
 ### 2026-05-24：PChome 近門檻身份回收第二輪
+- **V10.421 Kanebo Milano / hoi 蠟燭品類防錯配**: marketplace matcher 追加 `kanebo_milano_type_conflict` 與 `hoi_candle_line_conflict`，將 Kanebo Milano Collection 蜜粉餅 vs 絕色香水、hoi 日京山風香氛蠟燭 vs hoi!LAB 實驗室香氛蠟燭經典篇列為 hard veto；同品牌、同系列字樣或同容量仍不可跨品類/跨產品線直接比價。
 - **V10.420 111 Ollama LAN allowlist proxy**: 追查 111 高負載時確認來源不是 momo-pro，而是 110 上 `awoooi-cd` 臨時測試與 121 VMware VM 直接打 `192.168.0.111:11434`，繞過 `ai_calls` 與 momo-pro router 載入 7B runner。新增 `scripts/ops/ollama111_allow_proxy.py`，將真實 Ollama 收斂到 `127.0.0.1:11434`，由 user-space proxy 綁 `192.168.0.111:11434` 並預設只允許 111 本機與 188 生產宿主；110 / 121 會被 reset，111 fallback 保留給 momo production。
 - **V10.419 Dr.Hsieh LabSmart 精華品線防錯配**: marketplace matcher 追加 `dr_hsieh_labsmart_line_conflict`，只針對 Dr.Hsieh/達特醫的 `LabSmart Hi-Tech` / `LabSmart Classic` 精華被拿去對 `神經醯胺多重修復保濕精華液` 的近門檻錯配做 hard veto；同品牌同容量但不同產品線不再因規格相同停在 `true_low_confidence` 或被誤推進比價。
 - **V10.419 production pilot**: 正式回刷 SKU `10413050` / `10413051`，兩筆 Dr.Hsieh LabSmart 精華 vs 神經醯胺多重修復精華皆由 `true_low_confidence` 轉為 `identity_veto`，`diagnostic_codes=["dr_hsieh_labsmart_line_conflict"]`；`matched` 維持 1619、`true_low_confidence` 753→751、`identity_veto` 4011→4013，無正式 `competitor_prices` 覆寫。
diff --git a/services/marketplace_product_matcher.py b/services/marketplace_product_matcher.py
index cd04149..5343362 100644
--- a/services/marketplace_product_matcher.py
+++ b/services/marketplace_product_matcher.py
@@ -1909,6 +1909,12 @@ def score_marketplace_match(
     cotton_swab_variant_conflict = _has_cotton_swab_variant_conflict(left, right)
     if cotton_swab_variant_conflict:
         reasons.append("cotton_swab_variant_conflict")
+    kanebo_milano_type_conflict = _has_kanebo_milano_powder_perfume_conflict(left, right)
+    if kanebo_milano_type_conflict:
+        reasons.append("kanebo_milano_type_conflict")
+    hoi_candle_line_conflict = _has_hoi_candle_line_conflict(left, right)
+    if hoi_candle_line_conflict:
+        reasons.append("hoi_candle_line_conflict")
     variant_selection_review = _has_named_variant_selection_review(left, right, shared_anchor)
     if variant_selection_review:
         reasons.append("variant_selection_review")
@@ -1948,6 +1954,10 @@ def score_marketplace_match(
         hard_veto = True
     if cotton_swab_variant_conflict:
         hard_veto = True
+    if kanebo_milano_type_conflict:
+        hard_veto = True
+    if hoi_candle_line_conflict:
+        hard_veto = True
 
     focused_exact_line_reason = _has_focused_low_score_exact_identity_line(left, right)
     if focused_exact_line_reason in FOCUSED_IDENTITY_REVIEW_ONLY_REASONS:
@@ -2790,6 +2800,41 @@ def _has_cotton_swab_variant_conflict(left: ProductIdentity, right: ProductIdent
     return bool(left_hits and right_hits and left_hits.isdisjoint(right_hits))
 
 
+def _has_kanebo_milano_powder_perfume_conflict(left: ProductIdentity, right: ProductIdentity) -> bool:
+    left_text = left.searchable_name
+    right_text = right.searchable_name
+    if not ({"kanebo", "佳麗寶"} & (left.brand_tokens & right.brand_tokens)):
+        return False
+    if not (
+        ("milano" in left_text or "米蘭" in left_text or "collection" in left_text)
+        and ("milano" in right_text or "米蘭" in right_text or "collection" in right_text)
+    ):
+        return False
+    powder_terms = ("蜜粉", "粉餅")
+    fragrance_terms = ("香水", "淡香精", "淡香水", "perfume")
+    left_powder = any(term in left_text for term in powder_terms)
+    right_powder = any(term in right_text for term in powder_terms)
+    left_fragrance = any(term in left_text for term in fragrance_terms)
+    right_fragrance = any(term in right_text for term in fragrance_terms)
+    return bool((left_powder and right_fragrance) or (right_powder and left_fragrance))
+
+
+def _has_hoi_candle_line_conflict(left: ProductIdentity, right: ProductIdentity) -> bool:
+    left_text = left.searchable_name
+    right_text = right.searchable_name
+    if "hoi" not in (left.brand_tokens & right.brand_tokens):
+        return False
+    if "蠟燭" not in left_text or "蠟燭" not in right_text:
+        return False
+    day_mountain_terms = ("日京山風",)
+    lab_terms = ("hoi!lab", "hoilab", "實驗室香氛", "經典篇")
+    left_day_mountain = any(term in left_text for term in day_mountain_terms)
+    right_day_mountain = any(term in right_text for term in day_mountain_terms)
+    left_lab = any(term in left_text for term in lab_terms)
+    right_lab = any(term in right_text for term in lab_terms)
+    return bool((left_day_mountain and right_lab) or (right_day_mountain and left_lab))
+
+
 def _has_taicend_baby_spray_equivalence(left: ProductIdentity, right: ProductIdentity) -> bool:
     brand_tokens = {"taicend", "泰陞"}
     return (
diff --git a/tests/test_marketplace_product_matcher.py b/tests/test_marketplace_product_matcher.py
index 119c9c5..a05dc03 100644
--- a/tests/test_marketplace_product_matcher.py
+++ b/tests/test_marketplace_product_matcher.py
@@ -1410,6 +1410,50 @@ def test_marketplace_matcher_rejects_dr_hsieh_labsmart_vs_repair_serum_line_gap(
     assert "dr_hsieh_labsmart_line_conflict" not in same_line.reasons
 
 
+def test_marketplace_matcher_rejects_kanebo_milano_powder_vs_perfume_type_gap():
+    from services.marketplace_product_matcher import score_marketplace_match
+
+    diagnostics = score_marketplace_match(
+        "【Kanebo 佳麗寶】Milano Collection 2024絕色蜜粉餅GR 30g",
+        "Kanebo Milano Collection 2026 絕色香水30mL",
+        momo_price=3500,
+        competitor_price=2900,
+    )
+
+    assert diagnostics.score < 0.76
+    assert diagnostics.hard_veto is True
+    assert diagnostics.comparison_mode == "not_comparable"
+    assert "kanebo_milano_type_conflict" in diagnostics.reasons
+
+    same_powder = score_marketplace_match(
+        "【Kanebo 佳麗寶】Milano Collection 2024絕色蜜粉餅GR 30g",
+        "Kanebo Milano Collection 2024 絕色蜜粉餅 GR 30g",
+    )
+    assert "kanebo_milano_type_conflict" not in same_powder.reasons
+
+
+def test_marketplace_matcher_rejects_hoi_candle_product_line_gap():
+    from services.marketplace_product_matcher import score_marketplace_match
+
+    diagnostics = score_marketplace_match(
+        "【hoi! 好好生活】日京山風香氛天然蠟燭150g",
+        "hoi!LAB 實驗室香氛天然大豆香氛蠟燭經典篇 150g",
+        momo_price=780,
+        competitor_price=699,
+    )
+
+    assert diagnostics.score < 0.76
+    assert diagnostics.hard_veto is True
+    assert diagnostics.comparison_mode == "not_comparable"
+    assert "hoi_candle_line_conflict" in diagnostics.reasons
+
+    same_line = score_marketplace_match(
+        "【hoi! 好好生活】日京山風香氛天然蠟燭150g",
+        "hoi! 日京山風 香氛天然蠟燭 150g",
+    )
+    assert "hoi_candle_line_conflict" not in same_line.reasons
+
+
 def test_marketplace_matcher_rejects_refill_core_vs_case_only_pack():
     from services.marketplace_product_matcher import score_marketplace_match