diff --git a/config.py b/config.py
index 6340787..de10723 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 = "V10.415"
+SYSTEM_VERSION = "V10.416"
 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 fc686c9..63d2897 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
+- **V10.416 私密清潔 / 彩妝用途 / 棉棒 / 蘭蔻品線防錯配**: marketplace matcher 追加窄範圍 hard-veto guard，讓 SAUGELLA 日用/加強 vs 黃金女郎型、Lactacyd 清新舒涼 vs 生理呵護、LUNASOL 頰彩 vs 眼彩、MUJI 細軸棉棒 vs 黑色棉棒、LANCOME 超極光晶露 vs 超極限肌因精華露不再停留在模糊 `true_low_confidence`，而是以 `*_variant_conflict` / `makeup_usage_conflict` / `lancome_line_conflict` 明確拒絕；不調整 `MIN_MATCH_SCORE`，也不放寬真同款進 matched 的門檻。
 - **V10.415 Hermes 預設不落 111 + 比對保護**: `OllamaService.generate()` 新增 `allow_111_fallback` 參數，預設維持三主機相容；Hermes intent / competitor analyst 改以 `HERMES_ALLOW_111_FALLBACK=false` 預設只跑 GCP-A → GCP-B，兩台都不可用時交給規則引擎或 DB 證據 fallback，不再把批量價格分析與意圖分類轉嫁到 111。同版 marketplace matcher 將防曬類列入 variant-sensitive，排除 SPF/PA/UVA/UVB 這類規格 token 被誤當型號，避免「兒童防曬乳」與「海洋友善保濕防曬乳」誤配；Recipe Box 兒童防曬氣墊粉餅保留精準同品線例外；另新增 `pack_quantity_difference`，讓 Beauty Foot 足膜 5入 vs 4入走 unit comparable，不再卡在低信心。
 - **V10.415 production pilot**: 上線後以 SKU `12670442` 單筆回刷驗證 Beauty Foot 足膜 5入 vs 4入：最新 attempt 由 `true_low_confidence` 轉為 `refresh_unit_comparable`，`diagnostic_codes` 補上 `pack_quantity_difference` / `unit_comparable`，`matched` 不增加、正式 `competitor_prices` 不覆寫；整體最新分布由 `true_low_confidence=760, refresh_unit_comparable=64` 變為 `true_low_confidence=759, refresh_unit_comparable=65`，符合「可單位價覆核但不可直接當同款總價告警」邊界。
 - **V10.414 MCP fetch run readiness gate**: 新增 `mcp_fetch_run_readiness` read-only builder、GET/POST endpoint、UI run readiness 審核面板與 deployment readiness smoke target，在 run package 後檢查 command preview、receipt path、artifact path、節流/timeout/dry-run-first 與操作員 shell-only 邊界；API/UI 不執行 CLI、不抓外站、不寫檔、不開 DB、不掛 scheduler，只放行到人工 shell dry-run 與後續 receipt gate。
diff --git a/services/marketplace_product_matcher.py b/services/marketplace_product_matcher.py
index a26ab1a..eb80a8a 100644
--- a/services/marketplace_product_matcher.py
+++ b/services/marketplace_product_matcher.py
@@ -1891,6 +1891,21 @@ def score_marketplace_match(
     variant_option_conflict = _has_explicit_variant_option_conflict(left, right, shared_anchor)
     if variant_option_conflict:
         reasons.append("variant_option_conflict")
+    saugella_variant_conflict = _has_saugella_private_wash_variant_conflict(left, right)
+    if saugella_variant_conflict:
+        reasons.append("saugella_variant_conflict")
+    lactacyd_variant_conflict = _has_lactacyd_private_wash_variant_conflict(left, right)
+    if lactacyd_variant_conflict:
+        reasons.append("lactacyd_variant_conflict")
+    makeup_usage_conflict = _has_makeup_usage_conflict(left, right)
+    if makeup_usage_conflict:
+        reasons.append("makeup_usage_conflict")
+    lancome_line_conflict = _has_lancome_ultra_line_conflict(left, right)
+    if lancome_line_conflict:
+        reasons.append("lancome_line_conflict")
+    cotton_swab_variant_conflict = _has_cotton_swab_variant_conflict(left, right)
+    if cotton_swab_variant_conflict:
+        reasons.append("cotton_swab_variant_conflict")
     variant_selection_review = _has_named_variant_selection_review(left, right, shared_anchor)
     if variant_selection_review:
         reasons.append("variant_selection_review")
@@ -1918,6 +1933,16 @@ def score_marketplace_match(
         hard_veto = True
     if variant_option_conflict:
         hard_veto = True
+    if saugella_variant_conflict:
+        hard_veto = True
+    if lactacyd_variant_conflict:
+        hard_veto = True
+    if makeup_usage_conflict:
+        hard_veto = True
+    if lancome_line_conflict:
+        hard_veto = True
+    if cotton_swab_variant_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:
@@ -2664,6 +2689,82 @@ def _has_serum_formulation_conflict(left: ProductIdentity, right: ProductIdentit
     return bool(left_hit and right_hit and left_hit != right_hit)
 
 
+def _has_saugella_private_wash_variant_conflict(left: ProductIdentity, right: ProductIdentity) -> bool:
+    left_text = left.searchable_name
+    right_text = right.searchable_name
+    if not (
+        ("saugella" in left_text or "賽吉兒" in left_text)
+        and ("saugella" in right_text or "賽吉兒" in right_text)
+    ):
+        return False
+    variant_tokens = ("日用", "加強", "黃金女郎型")
+    left_hits = {token for token in variant_tokens if token in left_text}
+    right_hits = {token for token in variant_tokens if token in right_text}
+    return bool(left_hits and right_hits and left_hits.isdisjoint(right_hits))
+
+
+def _has_lactacyd_private_wash_variant_conflict(left: ProductIdentity, right: ProductIdentity) -> bool:
+    left_text = left.searchable_name
+    right_text = right.searchable_name
+    if not (
+        ("lactacyd" in left_text or "立朵舒" in left_text)
+        and ("lactacyd" in right_text or "立朵舒" in right_text)
+    ):
+        return False
+    variant_tokens = (
+        "清新舒涼",
+        "生理呵護",
+        "滋潤緊緻",
+        "加倍修護",
+        "柔軟滋潤",
+        "亮肌柔滑",
+        "全日清爽",
+    )
+    left_hits = {token for token in variant_tokens if token in left_text}
+    right_hits = {token for token in variant_tokens if token in right_text}
+    return bool(left_hits and right_hits and left_hits.isdisjoint(right_hits))
+
+
+def _has_makeup_usage_conflict(left: ProductIdentity, right: ProductIdentity) -> bool:
+    left_text = left.searchable_name
+    right_text = right.searchable_name
+    cheek_terms = ("頰彩", "腮紅", "blush")
+    eye_terms = ("眼彩", "眼影", "eyeshadow")
+    left_cheek = any(term in left_text for term in cheek_terms)
+    right_cheek = any(term in right_text for term in cheek_terms)
+    left_eye = any(term in left_text for term in eye_terms)
+    right_eye = any(term in right_text for term in eye_terms)
+    return bool((left_cheek and right_eye) or (left_eye and right_cheek))
+
+
+def _has_lancome_ultra_line_conflict(left: ProductIdentity, right: ProductIdentity) -> bool:
+    left_text = left.searchable_name
+    right_text = right.searchable_name
+    if not (
+        ("lancome" in left_text or "蘭蔻" in left_text)
+        and ("lancome" in right_text or "蘭蔻" in right_text)
+    ):
+        return False
+    glow_terms = ("超極光", "極光水", "晶露", "活粹晶露", "四重酸")
+    genifique_terms = ("超極限", "肌因", "小黑瓶", "賦活露", "肌因精華")
+    left_glow = any(term in left_text for term in glow_terms)
+    right_glow = any(term in right_text for term in glow_terms)
+    left_genifique = any(term in left_text for term in genifique_terms)
+    right_genifique = any(term in right_text for term in genifique_terms)
+    return bool((left_glow and right_genifique) or (left_genifique and right_glow))
+
+
+def _has_cotton_swab_variant_conflict(left: ProductIdentity, right: ProductIdentity) -> bool:
+    left_text = left.searchable_name
+    right_text = right.searchable_name
+    if "棉棒" not in left_text or "棉棒" not in right_text:
+        return False
+    variant_tokens = ("細軸", "黑色")
+    left_hits = {token for token in variant_tokens if token in left_text}
+    right_hits = {token for token in variant_tokens if token in right_text}
+    return bool(left_hits and right_hits and left_hits.isdisjoint(right_hits))
+
+
 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 ce4e5d5..4547ddd 100644
--- a/tests/test_marketplace_product_matcher.py
+++ b/tests/test_marketplace_product_matcher.py
@@ -1356,6 +1356,33 @@ def test_marketplace_matcher_keeps_high_variant_low_score_lines_outside_focused_
 
     assert sunscreen_line_gap.hard_veto is True
     assert "variant_descriptor_conflict" in sunscreen_line_gap.reasons
+    assert lactacyd.hard_veto is True
+    assert "lactacyd_variant_conflict" in lactacyd.reasons
+    assert lunasol.hard_veto is True
+    assert "makeup_usage_conflict" in lunasol.reasons
+    assert muji_swab.hard_veto is True
+    assert "cotton_swab_variant_conflict" in muji_swab.reasons
+    assert lancome_line_gap.hard_veto is True
+    assert "lancome_line_conflict" in lancome_line_gap.reasons
+
+
+def test_marketplace_matcher_rejects_saugella_private_wash_variant_gap():
+    from services.marketplace_product_matcher import score_marketplace_match
+
+    for momo_name in (
+        "【SAUGELLA 賽吉兒】菁萃潔浴凝露日用250ml二入組",
+        "【SAUGELLA 賽吉兒】菁萃潔浴凝露加強250ml二入組",
+    ):
+        diagnostics = score_marketplace_match(
+            momo_name,
+            "SAUGELLA賽吉兒 pH3.5菁萃婦潔凝露【黃金女郎型】250ml(2入特惠)",
+            momo_price=1080,
+            competitor_price=990,
+        )
+        assert diagnostics.score < 0.76
+        assert diagnostics.hard_veto is True
+        assert diagnostics.comparison_mode == "not_comparable"
+        assert "saugella_variant_conflict" in diagnostics.reasons
 
 
 def test_marketplace_matcher_rejects_refill_core_vs_case_only_pack():