diff --git a/3DTank/docs/KtRebuild_Plan.md b/3DTank/docs/KtRebuild_Plan.md
index df25b18..1e124bc 100644
--- a/3DTank/docs/KtRebuild_Plan.md
+++ b/3DTank/docs/KtRebuild_Plan.md
@@ -143,7 +143,7 @@
     `names/root_wiring.json` + `TankiOffline/.../App/State/RootState.kt`、`RootWiring.kt`。
     - 根状态 `z6`（`TOState`）的 **89 个槽位**全部入表；字段顺序取 `toString`，槽位取构造函数 `<名>_1`。
     - 根 reducer `k6` 的逐切片委派记全：reducer 引用、委派表达式、顶层 `instanceof` 动作名。
-  - 已迁移切片 **86/89**：
+  - 已迁移切片 **87/89**：
     - `inviteState` → `aD` / `pD.er5`（`InviteReducer.kt`）
     - `loginByPassword` → `gD` / `MD.cr6`（`LoginReducer.kt`，含 `SetLogin`/`SetPassword` 把 status 打回 `NONE` 的原语义）
     - `twitchState` → `g9` / `y9.gta`（`TwitchReducer.kt`；`SetAccount` 是 Twitch 账号，不是 UID）
@@ -435,12 +435,16 @@
       `IgnoreUserMessages`/`ShowUserMessages` 增删屏蔽名单（`_C` 重载时清空）；
       `rN`（用户资料刷新）依赖消息内的用户对象，离线重建按 no-op；`SendMessageToServer` 的时间戳留给中间件。
       消息复用生成物 `ChatMessage`。
+    - `itemNotifications` → `_1` / `A1().dso`（`ItemNotificationsReducer.kt`）：1 字段，6 个分支。
+      `AddItemNotification(s)` 加入（构造 `ItemNotificationData`）；`RemoveItemNotification` 先按有效期过滤，
+      再删掉匹配谓词的通知；`UpdateItemNotification` 对匹配项应用 handler；
+      `S1` 只做持久化（no-op）；`_C` 重载时只保留有效期内的通知。
     - `launchParams` → `(pass-through)`：原根 reducer 对 `hpx_1` 没有调用，缺省是 `ag()` 空 Map；
       `RootState.LaunchParams` 收口为 `LaunchParamsStateSlice = Map<String, String>`，不新增 reducer/动作。
-  - `App/State/RootReducer.kt`：`ReduceRoot(State0, Action)` 归约上述 85 个有 reducer 的切片，
-    `launchParams` 与其余 **3 个字段原样透传**；
-    迁移进度用 `RootReducer.Coverage`（`已迁移 86/89`）与 `RootWiring.Unmigrated` 暴露。
-  - 自检：`TankiOffline/tools/RunStateTest.ps1` **953 项全绿**，含 89 槽位完整性、85 个归约切片一次归约互不串片、未迁移字段透传，
+  - `App/State/RootReducer.kt`：`ReduceRoot(State0, Action)` 归约上述 86 个有 reducer 的切片，
+    `launchParams` 与其余 **2 个字段原样透传**；
+    迁移进度用 `RootReducer.Coverage`（`已迁移 87/89`）与 `RootWiring.Unmigrated` 暴露。
+  - 自检：`TankiOffline/tools/RunStateTest.ps1` **964 项全绿**，含 89 槽位完整性、86 个归约切片一次归约互不串片、未迁移字段透传，
     以及用 `action_trace_merged.json` 真实派发的两条商店动作（`SetCoinPaymentProviderUrl` / `ToggleShopActivity`）回放。
   - 委派表里的已知形态：`shop` / `home` / `localBattleUserState` / `partner` 是内联 IIFE，
     已按字段具名为 `(inline@<field>)` 并从函数体抓到顶层动作名（69 / 1 / 2 / 11 个）；
diff --git a/3DTank/names/root_wiring.json b/3DTank/names/root_wiring.json
index 403849a..e8fd75c 100644
--- a/3DTank/names/root_wiring.json
+++ b/3DTank/names/root_wiring.json
@@ -1,5 +1,5 @@
 {
-  "generatedAt": "2026-10-24T14:08:05.684Z",
+  "generatedAt": "2026-10-24T14:12:51.294Z",
   "module": "module_10032.js",
   "RootState": {
     "Class": "z6",
@@ -92,7 +92,8 @@
     "challenges",
     "clansStorage",
     "clan",
-    "chatState"
+    "chatState",
+    "itemNotifications"
   ],
   "AnonymousActions": [
     {
@@ -1636,6 +1637,12 @@
       "Name": "SetChatConfig",
       "DispatchedAt": "未在 action_trace_merged.json 中出现；按 reducer 分支效果定名",
       "Effect": "config（原名 Configure，与匹配大厅同名类冲突，改名 SetChatConfig）"
+    },
+    {
+      "Local": "S1",
+      "Name": "PersistItemNotifications",
+      "DispatchedAt": "未在 action_trace_merged.json 中出现；按 reducer 分支效果定名",
+      "Effect": "通知列表变化后写回存储（纯 reducer 里 no-op）"
     }
   ],
   "Markers": [
@@ -3218,15 +3225,15 @@
       "Reducer": "A1().dso",
       "Delegate": "A1().dso(t, n.xpx_1)",
       "Actions": [
-        "?S1",
         "AddItemNotification",
         "AddItemNotifications",
+        "PersistItemNotifications",
         "RemoveItemNotification",
         "ResetSettingsFromStorage",
         "UpdateItemNotification"
       ],
       "Default": "new _1()",
-      "Migrated": false
+      "Migrated": true
     },
     {
       "Field": "contextTutorial",
diff --git a/3DTank/tools/gen_root_wiring.js b/3DTank/tools/gen_root_wiring.js
index 6e84d00..7bcd173 100644
--- a/3DTank/tools/gen_root_wiring.js
+++ b/3DTank/tools/gen_root_wiring.js
@@ -368,6 +368,8 @@ const AnonymousActionNames = new Map([
   ['sN', 'MarkFirstChannelMessagesLoaded'],
   // YP 的 toString 名 Configure 与匹配大厅同名类冲突，改名避免字段错配。
   ['YP', 'SetChatConfig'],
+  // itemNotifications 切片（_1 / I1.dso）：S1 没有 toString。
+  ['S1', 'PersistItemNotifications'],
 ]);
 
 // 非动作的 `instanceof`：屏幕标识类，用于 GoTo 分支判断（不是 dispatch 的动作）。
@@ -858,6 +860,7 @@ const Migrated = {
   clansStorage: { Type: 'ClanStorageStateSlice', Reduce: 'ReduceClanStorage' },
   clan: { Type: 'ClanStateSlice', Reduce: 'ReduceClan' },
   chatState: { Type: 'ChatStateSlice', Reduce: 'ReduceChat' },
+  itemNotifications: { Type: 'ItemNotificationsStateSlice', Reduce: 'ReduceItemNotifications' },
 };
 
 for (const R of Rows) R.Migrated = Object.prototype.hasOwnProperty.call(Migrated, R.Field);
@@ -1306,6 +1309,7 @@ const AppSettingsAnonymousEffects = {
   qN: 'isNeedScroll=true',
   sN: 'isFirstChannelMessagesLoad=false',
   YP: 'config（原名 Configure，与匹配大厅同名类冲突，改名 SetChatConfig）',
+  S1: '通知列表变化后写回存储（纯 reducer 里 no-op）',
 };
 fs.writeFileSync(
   path.join(P, 'names', 'root_wiring.json'),
diff --git a/TankiOffline/app/src/jsMain/kotlin/App/State/Reducers/ItemNotificationsReducer.kt b/TankiOffline/app/src/jsMain/kotlin/App/State/Reducers/ItemNotificationsReducer.kt
new file mode 100644
index 0000000..4563200
--- /dev/null
+++ b/TankiOffline/app/src/jsMain/kotlin/App/State/Reducers/ItemNotificationsReducer.kt
@@ -0,0 +1,126 @@
+// ItemNotificationsReducer.kt —— 物品「新」标记切片（对应 module_10032 的 _1 状态 + I1.dso）
+//
+// 证据链：
+//   状态类 _1：1 个字段，toString 名 "ItemNotificationsState(notifications=…)"。
+//   默认：notifications = emptySet()。
+//   根委派：`A1().dso(t, n.xpx_1)`。
+//   reducer：
+//     q1（AddItemNotifications）   → 批量加入（逐条去重）
+//     y1（AddItemNotification）    → 用 6 个字段构造 `ItemNotificationData` 后加入
+//     $1（RemoveItemNotification） → 先按有效期过滤，再删掉匹配谓词的通知
+//                                    （section/itemId/type/parentId/excludeType；ssn_1 = 跳过有效期检查）
+//     j1（UpdateItemNotification） → 保留不匹配项，对匹配项应用 updateHandler
+//     S1（无 toString）            → 只做持久化标记（纯 reducer 里 no-op）
+//     _C（ResetSettingsFromStorage）→ 从存储重载并过滤过期（Kotlin 侧按「只保留有效期内的」收口）
+//
+// 有效期判定 `msm`：`(startTime == null || startTime <= now) && (endTime == null || endTime > now)`。
+// 通知模型直接复用生成物 `ItemNotificationData`（section / itemId / type / parentId / startTime / endTime）。
+package App.State.Reducers
+
+import App.State.AddItemNotification
+import App.State.AddItemNotifications
+import App.State.ItemNotificationData
+import App.State.RemoveItemNotification
+import App.State.UpdateItemNotification
+
+/* ------------------------------------------------------------------ 匿名动作 */
+
+/** 原 `S1`：通知列表变化后写回存储（纯 reducer 里 no-op）。 */
+object PersistItemNotifications
+
+/* ------------------------------------------------------------------ 状态 */
+
+data class ItemNotificationsStateSlice(
+    val Notifications: Set<Any?> = emptySet(),
+)
+
+/* ------------------------------------------------------------------ reducer */
+
+private fun Now(): Double = (js("Date.now()") as Number).toDouble()
+
+private fun TimeOf(Value: Any?): Double? = (Value as? Number)?.toDouble()
+
+/** 原 `msm`：有效期判定。 */
+private fun InPeriod(Item: ItemNotificationData): Boolean {
+    val Now = Now()
+    val Start = TimeOf(Item.startTime)
+    val End = TimeOf(Item.endTime)
+    return (Start == null || Start <= Now) && (End == null || End > Now)
+}
+
+/** 原 `tsm`：删除 / 更新谓词（忽略最后一个 `skipPeriodCheck` 参数）。 */
+private fun Matches(
+    Item: ItemNotificationData,
+    Section: Any?,
+    ItemId: Any?,
+    Type: Any?,
+    ParentId: Any?,
+    ExcludeType: Any?,
+): Boolean {
+    val WantedId = (ItemId as? Number)?.toLong() ?: ItemId
+    return (Section == null || Item.section == Section) &&
+        (ItemId == null || Item.itemId == WantedId) &&
+        (Type == null || Item.type == Type) &&
+        (ParentId == null || Item.parentId == ParentId) &&
+        (ExcludeType == null || Item.type != ExcludeType)
+}
+
+private fun AsItem(Value: Any?): ItemNotificationData? = Value as? ItemNotificationData
+
+fun ReduceItemNotifications(
+    State0: ItemNotificationsStateSlice,
+    Action: Any,
+): ItemNotificationsStateSlice = when (Action) {
+    is AddItemNotifications ->
+        State0.copy(Notifications = State0.Notifications + Action.data)
+    is AddItemNotification -> State0.copy(
+        Notifications = State0.Notifications + ItemNotificationData(
+            section = Action.section,
+            itemId = Action.itemId,
+            type = Action.type,
+            parentId = Action.parentId,
+            startTime = Action.startTime,
+            endTime = Action.endTime,
+        ),
+    )
+    is RemoveItemNotification -> State0.copy(
+        Notifications = State0.Notifications.filterNot {
+            val Item = AsItem(it) ?: return@filterNot false
+            val Skipped = Action.skipPeriodCheck == true
+            (Skipped || InPeriod(Item)) &&
+                Matches(
+                    Item,
+                    Action.section,
+                    Action.itemId,
+                    Action.type,
+                    Action.parentId,
+                    Action.excludeType,
+                )
+        }.toSet(),
+    )
+    is UpdateItemNotification -> State0.copy(
+        Notifications = State0.Notifications.map {
+            val Item = AsItem(it) ?: return@map it
+            if (!Matches(
+                    Item,
+                    Action.section,
+                    Action.itemId,
+                    Action.type,
+                    Action.parentId,
+                    Action.excludeType,
+                )
+            ) {
+                it
+            } else {
+                @Suppress("UNCHECKED_CAST")
+                val Transform = Action.updateHandler as? Function1<ItemNotificationData, ItemNotificationData>
+                Transform?.invoke(Item) ?: it
+            }
+        }.toSet(),
+    )
+    is PersistItemNotifications -> State0
+    is ResetSettingsFromStorage -> State0.copy(
+        Notifications = State0.Notifications.filter { AsItem(it)?.let(::InPeriod) ?: true }.toSet(),
+    )
+    else -> State0
+}
diff --git a/TankiOffline/app/src/jsMain/kotlin/App/State/RootReducer.kt b/TankiOffline/app/src/jsMain/kotlin/App/State/RootReducer.kt
index 50c0a96..26e59bf 100644
--- a/TankiOffline/app/src/jsMain/kotlin/App/State/RootReducer.kt
+++ b/TankiOffline/app/src/jsMain/kotlin/App/State/RootReducer.kt
@@ -1,7 +1,7 @@
 // RootReducer.kt —— 根 reducer 骨架（对应 module_10032 的根状态 z6 / TOState 与根 reducer k6）
 //
 // 原包 k6 对 89 个切片逐个调用各自的 reducer，再 `return n.cti(...)`（copy 出新状态）。
-// 这里采用同一形状。已迁移的 86 个切片里，85 个真正调用 reducer，launchParams 只做类型收口：
+// 这里采用同一形状。已迁移的 87 个切片里，86 个真正调用 reducer，launchParams 只做类型收口：
 //
 //   inviteState      → ReduceInvite（aD / pD.er5）
 //   loginByPassword  → ReduceLoginByPassword（gD / MD.cr6）
@@ -88,9 +88,10 @@
 //   clansStorage     → ReduceClanStorage（lO / me.vr1，根委派 `me.vr1(t, n.rpv_1)`）
 //   clan             → ReduceClan（jN / we.hr0，根委派 `we.hr0(t, n.qpv_1)`）
 //   chatState        → ReduceChat（LP / $r.wqv，根委派 `$r.wqv(t, n.opv_1)`）
+//   itemNotifications → ReduceItemNotifications（_1 / A1().dso，根委派 `A1().dso(t, n.xpx_1)`）
 //   launchParams     → 无 reducer（原根 reducer 原样透传；默认 `ag()` = emptyMap()）
 //
-// 其余 3 个字段按原样透传（defaultValue 取原构造）。每个切片 reducer 对无关动作都返回原状态，
+// 其余 2 个字段按原样透传（defaultValue 取原构造）。每个切片 reducer 对无关动作都返回原状态，
 // 所以一次 copy 里串起全部已迁移 reducer，与按动作路由再归约的结果一致。
 // 迁移进度与每个字段的证据见生成物 RootWiring.kt（不要手改）。
 package App.State
@@ -132,6 +133,7 @@ import App.State.Reducers.ReduceGraphicsSettings
 import App.State.Reducers.ReduceHome
 import App.State.Reducers.ReduceIcons
 import App.State.Reducers.ReduceInvite
+import App.State.Reducers.ReduceItemNotifications
 import App.State.Reducers.ReduceKeyboardSettings
 import App.State.Reducers.ReduceLanguage
 import App.State.Reducers.ReduceLocalBattleUser
@@ -279,6 +281,7 @@ object RootReducer {
         ClansStorage = ReduceClanStorage(State0.ClansStorage, Action),
         Clan = ReduceClan(State0.Clan, Action),
         ChatState = ReduceChat(State0.ChatState, Action),
+        ItemNotifications = ReduceItemNotifications(State0.ItemNotifications, Action),
     )
 }
 
diff --git a/TankiOffline/app/src/jsMain/kotlin/App/State/RootState.kt b/TankiOffline/app/src/jsMain/kotlin/App/State/RootState.kt
index 4fde8ab..1e7ed7d 100644
--- a/TankiOffline/app/src/jsMain/kotlin/App/State/RootState.kt
+++ b/TankiOffline/app/src/jsMain/kotlin/App/State/RootState.kt
@@ -42,6 +42,7 @@ import App.State.Reducers.GraphicsSettingsStateSlice
 import App.State.Reducers.HomeStateSlice
 import App.State.Reducers.IconsStateSlice
 import App.State.Reducers.InviteStateSlice
+import App.State.Reducers.ItemNotificationsStateSlice
 import App.State.Reducers.KeyboardSettingsStateSlice
 import App.State.Reducers.LobbyLoaderStateSlice
 import App.State.Reducers.LocalBattleUserStateSlice
@@ -248,8 +249,8 @@ data class RootState(
     val TwitchState: TwitchStateSlice = TwitchStateSlice(),
     /** 原 icons（oH / vs.kru）。已迁移。 */
     val Icons: IconsStateSlice = IconsStateSlice(),
-    /** 原 itemNotifications（_1 / A1().dso）。未迁移：原样透传。 */
-    val ItemNotifications: Any? = null,
+    /** 原 itemNotifications（_1 / A1().dso）。已迁移。 */
+    val ItemNotifications: ItemNotificationsStateSlice = ItemNotificationsStateSlice(),
     /** 原 contextTutorial（Mst / Jst().tth）。已迁移。 */
     val ContextTutorial: ContextTutorialStateSlice = ContextTutorialStateSlice(),
     /** 原 suppliesTutorial（ust / Uw.uth）。已迁移。 */
diff --git a/TankiOffline/app/src/jsMain/kotlin/App/State/RootWiring.kt b/TankiOffline/app/src/jsMain/kotlin/App/State/RootWiring.kt
index 923d982..d39f428 100644
--- a/TankiOffline/app/src/jsMain/kotlin/App/State/RootWiring.kt
+++ b/TankiOffline/app/src/jsMain/kotlin/App/State/RootWiring.kt
@@ -91,7 +91,7 @@ object RootWiring {
         SliceWiring("rewardedVideosState", "upx_1", "JQ", "xh.zsl", "xh.zsl(t, n.upx_1)", listOf("SetDisplayState")),
         SliceWiring("twitchState", "vpx_1", "g9", "uf.gta", "uf.gta(t, n.vpx_1)", listOf("SetAccount", "SetDaysForNextLinking", "SetTwitchEnabled")),
         SliceWiring("icons", "wpx_1", "oH", "vs.kru", "vs.kru(t, n.wpx_1)", listOf("SetIcons")),
-        SliceWiring("itemNotifications", "xpx_1", "_1", "A1().dso", "A1().dso(t, n.xpx_1)", listOf("?S1", "AddItemNotification", "AddItemNotifications", "RemoveItemNotification", "ResetSettingsFromStorage", "UpdateItemNotification")),
+        SliceWiring("itemNotifications", "xpx_1", "_1", "A1().dso", "A1().dso(t, n.xpx_1)", listOf("AddItemNotification", "AddItemNotifications", "PersistItemNotifications", "RemoveItemNotification", "ResetSettingsFromStorage", "UpdateItemNotification")),
         SliceWiring("contextTutorial", "ypx_1", "Mst", "Jst().tth", "Jst().tth(t, n.ypx_1)", listOf("LoadCurrentElement", "MarkElementAsViewed", "SetLoadedElements", "SetMissionToElement", "SetUnViewedElements")),
         SliceWiring("suppliesTutorial", "zpx_1", "ust", "Uw.uth", "Uw.uth(t, n.zpx_1)", listOf("ActivatedInCurrentBattle", "SetLoadedElement")),
         SliceWiring("questCategories", "apy_1", "zZ", "th.lsh", "th.lsh(t, n.apy_1)", listOf("RemoveQuestCategory", "RequestQuestCategoriesStatistic", "SetQuestCategories", "SetQuestCategoriesStatistic")),
@@ -106,7 +106,7 @@ object RootWiring {
     )
 
     /** 已迁移（强类型；launchParams 为透传，不调用 reducer）的字段。 */
-    val Migrated: Set<String> = setOf("inviteState", "loginByPassword", "twitchState", "home", "localBattleUserState", "shop", "screen", "lootBoxes", "garage", "garagePreview", "entrance", "user", "settings", "accountSettings", "proBattle", "language", "announcement", "launchParams", "news", "notifications", "quests", "lobbyLoader", "purchaseDialogState", "promoCode", "supportUrl", "rulesUpdated", "notificationByCountry", "availabilityByRank", "icons", "questCategories", "mainQuest", "securitySettings", "referralEvent", "tipsState", "rankUpDialogState", "battleResult", "captchaState", "modalScreen", "droppableGold", "eventGoods", "creatorTagState", "rewardedVideosState", "passwordChangeState", "system", "contextTutorial", "battleTutorial", "spectator", "twoStepVerificationState", "antiAddiction", "moderation", "migrationState", "register", "userReportsState", "friends", "suppliesState", "clanUserInfo", "battleInviteState", "partner", "userRenameState", "battlePauseState", "battleViewState", "tankActionsLogState", "suppliesTutorial", "clanChatState", "battleSearchState", "battleStatistics", "soundSettings", "gameSettings", "keyboardSettings", "touchscreenHudSettings", "graphicsSettings", "controlSettings", "battleSettings", "contractState", "tankBuilderState", "battleMessage", "maps", "battleChat", "remoteUserDataStorage", "matchmaking", "battlesSelect", "battleUsers", "challenges", "clansStorage", "clan", "chatState")
+    val Migrated: Set<String> = setOf("inviteState", "loginByPassword", "twitchState", "home", "localBattleUserState", "shop", "screen", "lootBoxes", "garage", "garagePreview", "entrance", "user", "settings", "accountSettings", "proBattle", "language", "announcement", "launchParams", "news", "notifications", "quests", "lobbyLoader", "purchaseDialogState", "promoCode", "supportUrl", "rulesUpdated", "notificationByCountry", "availabilityByRank", "icons", "questCategories", "mainQuest", "securitySettings", "referralEvent", "tipsState", "rankUpDialogState", "battleResult", "captchaState", "modalScreen", "droppableGold", "eventGoods", "creatorTagState", "rewardedVideosState", "passwordChangeState", "system", "contextTutorial", "battleTutorial", "spectator", "twoStepVerificationState", "antiAddiction", "moderation", "migrationState", "register", "userReportsState", "friends", "suppliesState", "clanUserInfo", "battleInviteState", "partner", "userRenameState", "battlePauseState", "battleViewState", "tankActionsLogState", "suppliesTutorial", "clanChatState", "battleSearchState", "battleStatistics", "soundSettings", "gameSettings", "keyboardSettings", "touchscreenHudSettings", "graphicsSettings", "controlSettings", "battleSettings", "contractState", "tankBuilderState", "battleMessage", "maps", "battleChat", "remoteUserDataStorage", "matchmaking", "battlesSelect", "battleUsers", "challenges", "clansStorage", "clan", "chatState", "itemNotifications")
 
     /** 未迁移字段：归约时原样透传，作为后续迁移清单。 */
     val Unmigrated: List<SliceWiring> get() = All.filter { it.Field !in Migrated }
diff --git a/TankiOffline/app/src/jsMain/kotlin/App/StateCheck.kt b/TankiOffline/app/src/jsMain/kotlin/App/StateCheck.kt
index 601b63b..c08fc87 100644
--- a/TankiOffline/app/src/jsMain/kotlin/App/StateCheck.kt
+++ b/TankiOffline/app/src/jsMain/kotlin/App/StateCheck.kt
@@ -19,7 +19,7 @@
 //        System / ContextTutorial / BattleTutorial / Spectator / TwoStepVerification / AntiAddiction /
 //        Moderation / MigrationState / Register / UserReports /
 //        Friends / Supplies / ClanUserInfo / BattleInvite / Partner / UserRename /
-//        BattlePause / BattleView / TankActionsLog / SuppliesTutorial / ClanChat / BattleSearch / BattleStatistics / SoundSettings / GameSettings / KeyboardSettings / TouchscreenHudSettings / GraphicsSettings / ControlSettings / BattleSettings / ContractState / TankBuilder / BattleMessage / Maps / BattleChat / RemoteUserDataStorage / Matchmaking / BattlesSelect / BattleUsers / Challenges / ClansStorage / Clan / ChatState；
+//        BattlePause / BattleView / TankActionsLog / SuppliesTutorial / ClanChat / BattleSearch / BattleStatistics / SoundSettings / GameSettings / KeyboardSettings / TouchscreenHudSettings / GraphicsSettings / ControlSettings / BattleSettings / ContractState / TankBuilder / BattleMessage / Maps / BattleChat / RemoteUserDataStorage / Matchmaking / BattlesSelect / BattleUsers / Challenges / ClansStorage / Clan / ChatState / ItemNotifications；
 //        ㉑ launchParams 是纯透传切片（无 reducer/动作），只做 Map 类型收口；⑭ 根 reducer 的 89 槽位委派
 //
 // 用法：$env:TANKIOFFLINE_STATE_TEST='1'; node …（见 TankiOffline/tools/RunStateTest.ps1）
@@ -904,6 +904,14 @@ import App.State.Reducers.RequireHideChatKeyboard
 import App.State.Reducers.ResetChat
 import App.State.Reducers.SetChatConfig
 import App.State.Reducers.ShowChatKeyboard
+import App.State.AddItemNotification
+import App.State.AddItemNotifications
+import App.State.ItemNotificationData
+import App.State.RemoveItemNotification
+import App.State.UpdateItemNotification
+import App.State.Reducers.ItemNotificationsStateSlice
+import App.State.Reducers.PersistItemNotifications
+import App.State.Reducers.ReduceItemNotifications
 import App.State.Reducers.UserRankBounds
 import App.State.Reducers.UserStateSlice
 import App.State.Reducers.ClearHullData
@@ -1331,7 +1339,7 @@ object StateCheck {
             Check("切片 LocalBattleUser：接 Store 派发后状态已归约", Store.State.IsReArmorTemporaryDisabled)
         }
 
-        // ⑭ 根 reducer：89 个槽位的委派表 + 86 个已迁移切片（85 归约 + launchParams 透传）
+        // ⑭ 根 reducer：89 个槽位的委派表 + 87 个已迁移切片（86 归约 + launchParams 透传）
         run {
             Check("根：根状态 89 个切片槽位", RootWiring.All.size == 89)
             Check(
@@ -1395,7 +1403,7 @@ object StateCheck {
                     LocalBattleW.Reducer == "(inline@localBattleUserState)"
             )
             Check(
-                "根：迁移表 = 86 个已迁移字段，其余 3 个待迁",
+                "根：迁移表 = 87 个已迁移字段，其余 2 个待迁",
                 RootReducer.Migrated ==
                     setOf(
                         "inviteState", "loginByPassword", "twitchState", "home",
@@ -1419,9 +1427,9 @@ object StateCheck {
                         "soundSettings", "gameSettings", "keyboardSettings", "touchscreenHudSettings",
                         "graphicsSettings", "controlSettings", "battleSettings", "contractState",
                         "tankBuilderState", "battleMessage", "maps", "battleChat",
-                        "remoteUserDataStorage", "matchmaking", "battlesSelect", "battleUsers", "challenges", "clansStorage", "clan", "chatState",
+                        "remoteUserDataStorage", "matchmaking", "battlesSelect", "battleUsers", "challenges", "clansStorage", "clan", "chatState", "itemNotifications",
                     ) &&
-                    RootWiring.Unmigrated.size == 3
+                    RootWiring.Unmigrated.size == 2
             )
 
             // 一次 ReduceRoot 里多个切片各归约自己的动作，互不串片
@@ -1477,7 +1485,7 @@ object StateCheck {
                 S5.User.Uid == "user-1" && S5.Screen.Current == NamedScreen("Preloader")
             )
             Check("根：无关动作返回等值状态", ReduceRoot(S5, AddFrags(1)) == S5)
-            Check("根：Coverage 文本", RootReducer.Coverage == "已迁移 86/89")
+            Check("根：Coverage 文本", RootReducer.Coverage == "已迁移 87/89")
 
             val Store = ReduxStore(RootState(), { S, A -> ReduceRoot(S, A) })
             Store.Dispatch(SetStatus("LOGGING_IN"))
@@ -7346,6 +7354,83 @@ object StateCheck {
             )
         }
 
+        // 97 切片 reducer：ItemNotifications（_1 / A1().dso，1 字段；6 个动作）
+        run {
+            fun Item(Id: Long, End: Any? = null): ItemNotificationData = ItemNotificationData(
+                section = "shop", itemId = Id, type = "new", parentId = null,
+                startTime = null, endTime = End,
+            )
+
+            val S0 = ItemNotificationsStateSlice()
+            Check("切片 ItemNotifications：默认空集合", S0.Notifications.isEmpty())
+            val S1 = ReduceItemNotifications(S0, AddItemNotification("shop", 1L, "new", null, null, null))
+            Check(
+                "切片 ItemNotifications：AddItemNotification 构造并入集合",
+                S1.Notifications.size == 1 &&
+                    (S1.Notifications.first() as ItemNotificationData).itemId == 1L
+            )
+            val S2 = ReduceItemNotifications(S1, AddItemNotifications(listOf(Item(2L), Item(3L))))
+            Check(
+                "切片 ItemNotifications：AddItemNotifications 批量加入",
+                (S2.Notifications.map { (it as ItemNotificationData).itemId }).toSet() ==
+                    setOf(1L, 2L, 3L)
+            )
+            Check(
+                "切片 ItemNotifications：RemoveItemNotification 按 section+itemId 删",
+                ReduceItemNotifications(
+                    S2,
+                    RemoveItemNotification("shop", 2L, null, null, null, true),
+                ).Notifications.size == 2
+            )
+            Check(
+                "切片 ItemNotifications：excludeType 命中时保留",
+                ReduceItemNotifications(
+                    S2,
+                    RemoveItemNotification("shop", null, null, null, "new", true),
+                ).Notifications.size == 3
+            )
+            Check(
+                "切片 ItemNotifications：UpdateItemNotification 对匹配项应用 handler",
+                ReduceItemNotifications(
+                    S2,
+                    UpdateItemNotification("shop", 1L, null, null, null, { Item: ItemNotificationData ->
+                        Item.copy(section = "updated")
+                    }),
+                ).let { Updated ->
+                    (Updated.Notifications.first { (it as ItemNotificationData).itemId == 1L }
+                        as ItemNotificationData).section == "updated"
+                }
+            )
+            Check(
+                "切片 ItemNotifications：PersistItemNotifications 是 no-op",
+                ReduceItemNotifications(S2, PersistItemNotifications) == S2
+            )
+            Check(
+                "切片 ItemNotifications：过期项在重载时被过滤",
+                ReduceItemNotifications(
+                    ReduceItemNotifications(S0, AddItemNotification("shop", 9L, "new", null, null, 1L)),
+                    ResetSettingsFromStorage,
+                ).Notifications.isEmpty()
+            )
+            Check(
+                "切片 ItemNotifications：无关动作不改状态",
+                ReduceItemNotifications(S2, AddFrags(1)) == S2
+            )
+
+            val Root0 = RootState()
+            val Root1 = ReduceRoot(Root0, AddItemNotification("shop", 1L, "new", null, null, null))
+            Check(
+                "根：AddItemNotification 只动 itemNotifications",
+                Root1.ItemNotifications.Notifications.size == 1 &&
+                    Root1.ChatState == Root0.ChatState
+            )
+            val W = RootWiring.ByField("itemNotifications")!!
+            Check(
+                "根：itemNotifications 委派到 _1 / A1().dso 且 6 个动作",
+                W.SliceClass == "_1" && W.Reducer == "A1().dso" && W.Actions.size == 6
+            )
+        }
+
         val Failed = Results.filter { !it.second }
         println("TankiOffline 状态层自检：${Results.size} 项")
         for ((Name, Ok) in Results) println((if (Ok) "  ✓ " else "  ✗ ") + Name)