diff --git a/src/components/settings/SettingsPage.tsx b/src/components/settings/SettingsPage.tsx
index 2819738fd..6ccba2531 100644
--- a/src/components/settings/SettingsPage.tsx
+++ b/src/components/settings/SettingsPage.tsx
@@ -215,7 +215,7 @@ export function SettingsPage({
               {t("settings.tabAdvanced")}
             </TabsTrigger>
             <TabsTrigger value="usage">
-              {t("usage.title", "使用统计")}
+              {t("usage.title")}
             </TabsTrigger>
             <TabsTrigger value="about">{t("common.about")}</TabsTrigger>
           </TabsList>
@@ -254,10 +254,10 @@ export function SettingsPage({
                           <FolderSearch className="h-5 w-5 text-primary" />
                           <div className="text-left">
                             <h3 className="text-base font-semibold">
-                              配置文件目录
+                              {t("settings.advanced.configDir.title")}
                             </h3>
                             <p className="text-sm text-muted-foreground font-normal">
-                              管理 Claude、Codex 和 Gemini 的配置存储路径
+                              {t("settings.advanced.configDir.description")}
                             </p>
                           </div>
                         </div>
@@ -289,10 +289,10 @@ export function SettingsPage({
                             <Server className="h-5 w-5 text-green-500" />
                             <div className="text-left">
                               <h3 className="text-base font-semibold">
-                                本地代理
+                                {t("settings.advanced.proxy.title")}
                               </h3>
                               <p className="text-sm text-muted-foreground font-normal">
-                                控制代理服务开关、查看状态与端口信息
+                                {t("settings.advanced.proxy.description")}
                               </p>
                             </div>
                           </div>
@@ -307,7 +307,7 @@ export function SettingsPage({
                             <Activity
                               className={`h-3 w-3 ${isRunning ? "animate-pulse" : ""}`}
                             />
-                            {isRunning ? "运行中" : "已停止"}
+                            {isRunning ? t("settings.advanced.proxy.running") : t("settings.advanced.proxy.stopped")}
                           </Badge>
                           <Switch
                             checked={isRunning}
@@ -330,10 +330,10 @@ export function SettingsPage({
                           <Activity className="h-5 w-5 text-indigo-500" />
                           <div className="text-left">
                             <h3 className="text-base font-semibold">
-                              模型测试配置
+                              {t("settings.advanced.modelTest.title")}
                             </h3>
                             <p className="text-sm text-muted-foreground font-normal">
-                              配置模型测试使用的默认模型和提示词
+                              {t("settings.advanced.modelTest.description")}
                             </p>
                           </div>
                         </div>
@@ -353,10 +353,10 @@ export function SettingsPage({
                             <Activity className="h-5 w-5 text-orange-500" />
                             <div className="text-left">
                               <h3 className="text-base font-semibold">
-                                自动故障转移
+                                {t("settings.advanced.failover.title")}
                               </h3>
                               <p className="text-sm text-muted-foreground font-normal">
-                                配置故障转移队列和熔断策略
+                                {t("settings.advanced.failover.description")}
                               </p>
                             </div>
                           </div>
@@ -376,13 +376,10 @@ export function SettingsPage({
                           <div className="space-y-4">
                             <div>
                               <h4 className="text-sm font-semibold">
-                                {t("proxy.failoverQueue.title", "故障转移队列")}
+                                {t("proxy.failoverQueue.title")}
                               </h4>
                               <p className="text-xs text-muted-foreground">
-                                {t(
-                                  "proxy.failoverQueue.description",
-                                  "管理各应用的供应商故障转移顺序",
-                                )}
+                                {t("proxy.failoverQueue.description")}
                               </p>
                             </div>
                             <Tabs defaultValue="claude" className="w-full">
@@ -432,10 +429,10 @@ export function SettingsPage({
                           <Coins className="h-5 w-5 text-yellow-500" />
                           <div className="text-left">
                             <h3 className="text-base font-semibold">
-                              成本定价
+                              {t("settings.advanced.pricing.title")}
                             </h3>
                             <p className="text-sm text-muted-foreground font-normal">
-                              管理各模型 Token 计费规则
+                              {t("settings.advanced.pricing.description")}
                             </p>
                           </div>
                         </div>
@@ -454,10 +451,10 @@ export function SettingsPage({
                           <Database className="h-5 w-5 text-blue-500" />
                           <div className="text-left">
                             <h3 className="text-base font-semibold">
-                              数据管理
+                              {t("settings.advanced.data.title")}
                             </h3>
                             <p className="text-sm text-muted-foreground font-normal">
-                              导入导出配置与备份恢复
+                              {t("settings.advanced.data.description")}
                             </p>
                           </div>
                         </div>
diff --git a/src/components/usage/ModelTestConfigPanel.tsx b/src/components/usage/ModelTestConfigPanel.tsx
index d6c972705..998b954ad 100644
--- a/src/components/usage/ModelTestConfigPanel.tsx
+++ b/src/components/usage/ModelTestConfigPanel.tsx
@@ -47,12 +47,12 @@ export function ModelTestConfigPanel() {
     try {
       setIsSaving(true);
       await saveStreamCheckConfig(config);
-      toast.success(t("streamCheck.configSaved", "健康检查配置已保存"), {
+      toast.success(t("streamCheck.configSaved"), {
         closeButton: true,
       });
     } catch (e) {
       toast.error(
-        t("streamCheck.configSaveFailed", "保存失败") + ": " + String(e),
+        t("streamCheck.configSaveFailed") + ": " + String(e),
       );
     } finally {
       setIsSaving(false);
@@ -78,12 +78,12 @@ export function ModelTestConfigPanel() {
       {/* 测试模型配置 */}
       <div className="space-y-4">
         <h4 className="text-sm font-medium text-muted-foreground">
-          {t("streamCheck.testModels", "测试模型")}
+          {t("streamCheck.testModels")}
         </h4>
         <div className="grid grid-cols-1 md:grid-cols-3 gap-4">
           <div className="space-y-2">
             <Label htmlFor="claudeModel">
-              {t("streamCheck.claudeModel", "Claude 模型")}
+              {t("streamCheck.claudeModel")}
             </Label>
             <Input
               id="claudeModel"
@@ -97,7 +97,7 @@ export function ModelTestConfigPanel() {
 
           <div className="space-y-2">
             <Label htmlFor="codexModel">
-              {t("streamCheck.codexModel", "Codex 模型")}
+              {t("streamCheck.codexModel")}
             </Label>
             <Input
               id="codexModel"
@@ -111,7 +111,7 @@ export function ModelTestConfigPanel() {
 
           <div className="space-y-2">
             <Label htmlFor="geminiModel">
-              {t("streamCheck.geminiModel", "Gemini 模型")}
+              {t("streamCheck.geminiModel")}
             </Label>
             <Input
               id="geminiModel"
@@ -128,12 +128,12 @@ export function ModelTestConfigPanel() {
       {/* 检查参数配置 */}
       <div className="space-y-4">
         <h4 className="text-sm font-medium text-muted-foreground">
-          {t("streamCheck.checkParams", "检查参数")}
+          {t("streamCheck.checkParams")}
         </h4>
         <div className="grid grid-cols-1 md:grid-cols-3 gap-4">
           <div className="space-y-2">
             <Label htmlFor="timeoutSecs">
-              {t("streamCheck.timeout", "超时时间（秒）")}
+              {t("streamCheck.timeout")}
             </Label>
             <Input
               id="timeoutSecs"
@@ -152,7 +152,7 @@ export function ModelTestConfigPanel() {
 
           <div className="space-y-2">
             <Label htmlFor="maxRetries">
-              {t("streamCheck.maxRetries", "最大重试次数")}
+              {t("streamCheck.maxRetries")}
             </Label>
             <Input
               id="maxRetries"
@@ -171,7 +171,7 @@ export function ModelTestConfigPanel() {
 
           <div className="space-y-2">
             <Label htmlFor="degradedThresholdMs">
-              {t("streamCheck.degradedThreshold", "降级阈值（毫秒）")}
+              {t("streamCheck.degradedThreshold")}
             </Label>
             <Input
               id="degradedThresholdMs"
@@ -196,12 +196,12 @@ export function ModelTestConfigPanel() {
           {isSaving ? (
             <>
               <Loader2 className="mr-2 h-4 w-4 animate-spin" />
-              {t("common.saving", "保存中...")}
+              {t("common.saving")}
             </>
           ) : (
             <>
               <Save className="mr-2 h-4 w-4" />
-              {t("common.save", "保存")}
+              {t("common.save")}
             </>
           )}
         </Button>
diff --git a/src/components/usage/PricingConfigPanel.tsx b/src/components/usage/PricingConfigPanel.tsx
index 85182221e..3a3cee317 100644
--- a/src/components/usage/PricingConfigPanel.tsx
+++ b/src/components/usage/PricingConfigPanel.tsx
@@ -63,7 +63,7 @@ export function PricingConfigPanel() {
           <div className="flex items-center gap-2">
             <ChevronRight className="h-4 w-4" />
             <CardTitle className="text-base">
-              {t("usage.modelPricing", "模型定价")}
+              {t("usage.modelPricing")}
             </CardTitle>
           </div>
         </CardHeader>
@@ -85,7 +85,7 @@ export function PricingConfigPanel() {
               <ChevronRight className="h-4 w-4" />
             )}
             <CardTitle className="text-base">
-              {t("usage.modelPricing", "模型定价")}
+              {t("usage.modelPricing")}
             </CardTitle>
           </div>
         </CardHeader>
@@ -93,7 +93,7 @@ export function PricingConfigPanel() {
           <CardContent>
             <Alert variant="destructive">
               <AlertDescription>
-                {t("usage.loadPricingError", "加载定价数据失败")}:{" "}
+                {t("usage.loadPricingError")}:{" "}
                 {String(error)}
               </AlertDescription>
             </Alert>
@@ -107,7 +107,7 @@ export function PricingConfigPanel() {
     <div className="space-y-4">
       <div className="flex items-center justify-between mb-4">
         <h4 className="text-sm font-medium text-muted-foreground">
-          {t("usage.modelPricingDesc", "配置各模型的 Token 成本")} (每百万)
+          {t("usage.modelPricingDesc")} {t("usage.perMillion")}
         </h4>
         <Button
           onClick={(e) => {
@@ -117,7 +117,7 @@ export function PricingConfigPanel() {
           size="sm"
         >
           <Plus className="mr-1 h-4 w-4" />
-          {t("common.add", "新增")}
+          {t("common.add")}
         </Button>
       </div>
 
@@ -125,10 +125,7 @@ export function PricingConfigPanel() {
         {!pricing || pricing.length === 0 ? (
           <Alert>
             <AlertDescription>
-              {t(
-                "usage.noPricingData",
-                '暂无定价数据。点击"新增"添加模型定价配置。',
-              )}
+              {t("usage.noPricingData")}
             </AlertDescription>
           </Alert>
         ) : (
@@ -136,22 +133,22 @@ export function PricingConfigPanel() {
             <Table>
               <TableHeader>
                 <TableRow>
-                  <TableHead>{t("usage.model", "模型")}</TableHead>
-                  <TableHead>{t("usage.displayName", "显示名称")}</TableHead>
+                  <TableHead>{t("usage.model")}</TableHead>
+                  <TableHead>{t("usage.displayName")}</TableHead>
                   <TableHead className="text-right">
-                    {t("usage.inputCost", "输入成本")}
+                    {t("usage.inputCost")}
                   </TableHead>
                   <TableHead className="text-right">
-                    {t("usage.outputCost", "输出成本")}
+                    {t("usage.outputCost")}
                   </TableHead>
                   <TableHead className="text-right">
-                    {t("usage.cacheReadCost", "缓存读取")}
+                    {t("usage.cacheReadCost")}
                   </TableHead>
                   <TableHead className="text-right">
-                    {t("usage.cacheWriteCost", "缓存写入")}
+                    {t("usage.cacheWriteCost")}
                   </TableHead>
                   <TableHead className="text-right">
-                    {t("common.actions", "操作")}
+                    {t("common.actions")}
                   </TableHead>
                 </TableRow>
               </TableHeader>
@@ -183,7 +180,7 @@ export function PricingConfigPanel() {
                             setIsAddingNew(false);
                             setEditingModel(model);
                           }}
-                          title={t("common.edit", "编辑")}
+                          title={t("common.edit")}
                         >
                           <Pencil className="h-4 w-4" />
                         </Button>
@@ -191,7 +188,7 @@ export function PricingConfigPanel() {
                           variant="ghost"
                           size="icon"
                           onClick={() => setDeleteConfirm(model.modelId)}
-                          title={t("common.delete", "删除")}
+                          title={t("common.delete")}
                           className="text-destructive hover:text-destructive"
                         >
                           <Trash2 className="h-4 w-4" />
@@ -224,18 +221,15 @@ export function PricingConfigPanel() {
         <DialogContent>
           <DialogHeader>
             <DialogTitle>
-              {t("usage.deleteConfirmTitle", "确认删除")}
+              {t("usage.deleteConfirmTitle")}
             </DialogTitle>
             <DialogDescription>
-              {t(
-                "usage.deleteConfirmDesc",
-                "确定要删除此模型定价配置吗？此操作无法撤销。",
-              )}
+              {t("usage.deleteConfirmDesc")}
             </DialogDescription>
           </DialogHeader>
           <DialogFooter>
             <Button variant="outline" onClick={() => setDeleteConfirm(null)}>
-              {t("common.cancel", "取消")}
+              {t("common.cancel")}
             </Button>
             <Button
               variant="destructive"
@@ -243,8 +237,8 @@ export function PricingConfigPanel() {
               disabled={deleteMutation.isPending}
             >
               {deleteMutation.isPending
-                ? t("common.deleting", "删除中...")
-                : t("common.delete", "删除")}
+                ? t("common.deleting")
+                : t("common.delete")}
             </Button>
           </DialogFooter>
         </DialogContent>
diff --git a/src/components/usage/RequestLogTable.tsx b/src/components/usage/RequestLogTable.tsx
index 69565c657..39d8d7169 100644
--- a/src/components/usage/RequestLogTable.tsx
+++ b/src/components/usage/RequestLogTable.tsx
@@ -84,11 +84,11 @@ export function RequestLogTable() {
             }
           >
             <SelectTrigger className="w-[130px] bg-background">
-              <SelectValue placeholder={t("usage.appType", "应用类型")} />
+              <SelectValue placeholder={t("usage.appType")} />
             </SelectTrigger>
             <SelectContent>
               <SelectItem value="all">
-                {t("usage.allApps", { defaultValue: "全部应用" })}
+                {t("usage.allApps")}
               </SelectItem>
               <SelectItem value="claude">Claude</SelectItem>
               <SelectItem value="codex">Codex</SelectItem>
@@ -106,10 +106,10 @@ export function RequestLogTable() {
             }
           >
             <SelectTrigger className="w-[130px] bg-background">
-              <SelectValue placeholder={t("usage.statusCode", "状态码")} />
+              <SelectValue placeholder={t("usage.statusCode")} />
             </SelectTrigger>
             <SelectContent>
-              <SelectItem value="all">{t("common.all", "全部状态")}</SelectItem>
+              <SelectItem value="all">{t("common.all")}</SelectItem>
               <SelectItem value="200">200 OK</SelectItem>
               <SelectItem value="400">400 Bad Request</SelectItem>
               <SelectItem value="401">401 Unauthorized</SelectItem>
@@ -122,10 +122,7 @@ export function RequestLogTable() {
             <div className="relative flex-1">
               <Search className="absolute left-2.5 top-2.5 h-4 w-4 text-muted-foreground" />
               <Input
-                placeholder={t(
-                  "usage.searchProviderPlaceholder",
-                  "搜索供应商...",
-                )}
+                placeholder={t("usage.searchProviderPlaceholder")}
                 className="pl-9 bg-background"
                 value={tempFilters.providerName || ""}
                 onChange={(e) =>
@@ -137,7 +134,7 @@ export function RequestLogTable() {
               />
             </div>
             <Input
-              placeholder={t("usage.searchModelPlaceholder", "搜索模型...")}
+              placeholder={t("usage.searchModelPlaceholder")}
               className="w-[180px] bg-background"
               value={tempFilters.model || ""}
               onChange={(e) =>
@@ -153,7 +150,7 @@ export function RequestLogTable() {
         <div className="flex flex-wrap items-center justify-between gap-3">
           <div className="flex items-center gap-2 text-sm text-muted-foreground">
             <span className="whitespace-nowrap">
-              {t("usage.timeRange", { defaultValue: "时间范围" })}:
+              {t("usage.timeRange")}:
             </span>
             <Input
               type="datetime-local"
@@ -204,7 +201,7 @@ export function RequestLogTable() {
               className="h-8"
             >
               <Search className="mr-2 h-3.5 w-3.5" />
-              {t("common.search", "查询")}
+              {t("common.search")}
             </Button>
             <Button
               size="sm"
@@ -213,7 +210,7 @@ export function RequestLogTable() {
               className="h-8"
             >
               <X className="mr-2 h-3.5 w-3.5" />
-              {t("common.reset", "重置")}
+              {t("common.reset")}
             </Button>
             <Button
               size="sm"
@@ -236,34 +233,34 @@ export function RequestLogTable() {
               <TableHeader>
                 <TableRow>
                   <TableHead className="whitespace-nowrap">
-                    {t("usage.time", "时间")}
+                    {t("usage.time")}
                   </TableHead>
                   <TableHead className="whitespace-nowrap">
-                    {t("usage.provider", "供应商")}
+                    {t("usage.provider")}
                   </TableHead>
                   <TableHead className="min-w-[280px] whitespace-nowrap">
-                    {t("usage.billingModel", "计费模型")}
+                    {t("usage.billingModel")}
                   </TableHead>
                   <TableHead className="text-right whitespace-nowrap">
-                    {t("usage.inputTokens", "输入")}
+                    {t("usage.inputTokens")}
                   </TableHead>
                   <TableHead className="text-right whitespace-nowrap">
-                    {t("usage.outputTokens", "输出")}
+                    {t("usage.outputTokens")}
                   </TableHead>
                   <TableHead className="text-right min-w-[90px] whitespace-nowrap">
-                    {t("usage.cacheReadTokens", "缓存读取")}
+                    {t("usage.cacheReadTokens")}
                   </TableHead>
                   <TableHead className="text-right min-w-[90px] whitespace-nowrap">
-                    {t("usage.cacheCreationTokens", "缓存写入")}
+                    {t("usage.cacheCreationTokens")}
                   </TableHead>
                   <TableHead className="text-right whitespace-nowrap">
-                    {t("usage.totalCost", "成本")}
+                    {t("usage.totalCost")}
                   </TableHead>
                   <TableHead className="text-center min-w-[140px] whitespace-nowrap">
-                    {t("usage.timingInfo", "用时/首字")}
+                    {t("usage.timingInfo")}
                   </TableHead>
                   <TableHead className="whitespace-nowrap">
-                    {t("usage.status", "状态")}
+                    {t("usage.status")}
                   </TableHead>
                 </TableRow>
               </TableHeader>
@@ -274,7 +271,7 @@ export function RequestLogTable() {
                       colSpan={10}
                       className="text-center text-muted-foreground"
                     >
-                      {t("usage.noData", "暂无数据")}
+                      {t("usage.noData")}
                     </TableCell>
                   </TableRow>
                 ) : (
@@ -287,7 +284,7 @@ export function RequestLogTable() {
                       </TableCell>
                       <TableCell>
                         {log.providerName ||
-                          t("usage.unknownProvider", "未知供应商")}
+                          t("usage.unknownProvider")}
                       </TableCell>
                       <TableCell
                         className="font-mono text-sm max-w-[280px] truncate"
@@ -355,8 +352,8 @@ export function RequestLogTable() {
                             }`}
                           >
                             {log.isStreaming
-                              ? t("usage.stream", "流")
-                              : t("usage.nonStream", "非流")}
+                              ? t("usage.stream")
+                              : t("usage.nonStream")}
                           </span>
                         </div>
                       </TableCell>
@@ -382,7 +379,7 @@ export function RequestLogTable() {
           {total > 0 && (
             <div className="flex items-center justify-between px-2">
               <span className="text-sm text-muted-foreground">
-                {t("usage.totalRecords", "共 {{total}} 条记录", { total })}
+                {t("usage.totalRecords", { total })}
               </span>
               <div className="flex items-center gap-1">
                 <Button
diff --git a/src/components/usage/UsageDashboard.tsx b/src/components/usage/UsageDashboard.tsx
index d9af2b0c1..32666824b 100644
--- a/src/components/usage/UsageDashboard.tsx
+++ b/src/components/usage/UsageDashboard.tsx
@@ -25,9 +25,9 @@ export function UsageDashboard() {
     >
       <div className="flex flex-col sm:flex-row sm:items-center justify-between gap-4">
         <div className="flex flex-col gap-1">
-          <h2 className="text-2xl font-bold">{t("usage.title", "使用统计")}</h2>
+          <h2 className="text-2xl font-bold">{t("usage.title")}</h2>
           <p className="text-sm text-muted-foreground">
-            {t("usage.subtitle", "查看 AI 模型的使用情况和成本统计")}
+            {t("usage.subtitle")}
           </p>
         </div>
 
@@ -41,19 +41,19 @@ export function UsageDashboard() {
               value="1d"
               className="flex-1 sm:flex-none sm:px-6 data-[state=active]:bg-primary/10 data-[state=active]:text-primary hover:text-primary transition-colors"
             >
-              {t("usage.today", "24小时")}
+              {t("usage.today")}
             </TabsTrigger>
             <TabsTrigger
               value="7d"
               className="flex-1 sm:flex-none sm:px-6 data-[state=active]:bg-primary/10 data-[state=active]:text-primary hover:text-primary transition-colors"
             >
-              {t("usage.last7days", "7天")}
+              {t("usage.last7days")}
             </TabsTrigger>
             <TabsTrigger
               value="30d"
               className="flex-1 sm:flex-none sm:px-6 data-[state=active]:bg-primary/10 data-[state=active]:text-primary hover:text-primary transition-colors"
             >
-              {t("usage.last30days", "30天")}
+              {t("usage.last30days")}
             </TabsTrigger>
           </TabsList>
         </Tabs>
@@ -69,15 +69,15 @@ export function UsageDashboard() {
             <TabsList className="bg-muted/50">
               <TabsTrigger value="logs" className="gap-2">
                 <ListFilter className="h-4 w-4" />
-                {t("usage.requestLogs", "请求日志")}
+                {t("usage.requestLogs")}
               </TabsTrigger>
               <TabsTrigger value="providers" className="gap-2">
                 <Activity className="h-4 w-4" />
-                {t("usage.providerStats", "Provider 统计")}
+                {t("usage.providerStats")}
               </TabsTrigger>
               <TabsTrigger value="models" className="gap-2">
                 <BarChart3 className="h-4 w-4" />
-                {t("usage.modelStats", "模型统计")}
+                {t("usage.modelStats")}
               </TabsTrigger>
             </TabsList>
           </div>
diff --git a/src/components/usage/UsageSummaryCards.tsx b/src/components/usage/UsageSummaryCards.tsx
index a6d9397ff..8e19f51bf 100644
--- a/src/components/usage/UsageSummaryCards.tsx
+++ b/src/components/usage/UsageSummaryCards.tsx
@@ -34,7 +34,7 @@ export function UsageSummaryCards({ days }: UsageSummaryCardsProps) {
 
     return [
       {
-        title: t("usage.totalRequests", "总请求数"),
+        title: t("usage.totalRequests"),
         value: totalRequests.toLocaleString(),
         icon: Activity,
         color: "text-blue-500",
@@ -42,7 +42,7 @@ export function UsageSummaryCards({ days }: UsageSummaryCardsProps) {
         subValue: null,
       },
       {
-        title: t("usage.totalCost", "总成本"),
+        title: t("usage.totalCost"),
         value: `$${totalCost.toFixed(4)}`,
         icon: DollarSign,
         color: "text-green-500",
@@ -50,7 +50,7 @@ export function UsageSummaryCards({ days }: UsageSummaryCardsProps) {
         subValue: null,
       },
       {
-        title: t("usage.totalTokens", "总 Token 数"),
+        title: t("usage.totalTokens"),
         value: totalTokens.toLocaleString(),
         icon: Layers,
         color: "text-purple-500",
@@ -58,13 +58,13 @@ export function UsageSummaryCards({ days }: UsageSummaryCardsProps) {
         subValue: (
             <div className="flex flex-col gap-1 text-xs text-muted-foreground mt-3 pt-3 border-t border-border/50">
             <div className="flex justify-between items-center">
-              <span>{t("usage.input", { defaultValue: "Input" })}</span>
+              <span>{t("usage.input")}</span>
               <span className="text-foreground/80">
                 {(inputTokens / 1000).toFixed(1)}k
               </span>
             </div>
             <div className="flex justify-between items-center">
-              <span>{t("usage.output", { defaultValue: "Output" })}</span>
+              <span>{t("usage.output")}</span>
               <span className="text-foreground/80">
                 {(outputTokens / 1000).toFixed(1)}k
               </span>
@@ -73,7 +73,7 @@ export function UsageSummaryCards({ days }: UsageSummaryCardsProps) {
         ),
       },
       {
-        title: t("usage.cacheTokens", "缓存 Token"),
+        title: t("usage.cacheTokens"),
         value: totalCacheTokens.toLocaleString(),
         icon: Database,
         color: "text-orange-500",
@@ -81,13 +81,13 @@ export function UsageSummaryCards({ days }: UsageSummaryCardsProps) {
           subValue: (
             <div className="flex flex-col gap-1 text-xs text-muted-foreground mt-3 pt-3 border-t border-border/50">
               <div className="flex justify-between items-center">
-                <span>{t("usage.cacheWrite", { defaultValue: "Write" })}</span>
+                <span>{t("usage.cacheWrite")}</span>
                 <span className="text-foreground/80">
                   {(cacheWriteTokens / 1000).toFixed(1)}k
                 </span>
               </div>
               <div className="flex justify-between items-center">
-                <span>{t("usage.cacheRead", { defaultValue: "Read" })}</span>
+                <span>{t("usage.cacheRead")}</span>
                 <span className="text-foreground/80">
                   {(cacheReadTokens / 1000).toFixed(1)}k
                 </span>
diff --git a/src/i18n/locales/en.json b/src/i18n/locales/en.json
index 322d42282..321f0861f 100644
--- a/src/i18n/locales/en.json
+++ b/src/i18n/locales/en.json
@@ -32,7 +32,11 @@
     "back": "Back",
     "refresh": "Refresh",
     "refreshing": "Refreshing...",
-    "notInstalled": "Not installed"
+    "all": "All",
+    "search": "Search",
+    "reset": "Reset",
+    "actions": "Actions",
+    "deleting": "Deleting..."
   },
   "apiKeyInput": {
     "placeholder": "Enter API Key",
@@ -142,6 +146,34 @@
     "general": "General",
     "tabGeneral": "General",
     "tabAdvanced": "Advanced",
+    "advanced": {
+      "configDir": {
+        "title": "Configuration Directory",
+        "description": "Manage storage paths for Claude, Codex and Gemini configurations"
+      },
+      "proxy": {
+        "title": "Local Proxy",
+        "description": "Control proxy service toggle, view status and port info",
+        "running": "Running",
+        "stopped": "Stopped"
+      },
+      "modelTest": {
+        "title": "Model Test Config",
+        "description": "Configure default models and prompts for model testing"
+      },
+      "failover": {
+        "title": "Auto Failover",
+        "description": "Configure failover queue and circuit breaker strategy"
+      },
+      "pricing": {
+        "title": "Cost Pricing",
+        "description": "Manage token pricing rules for each model"
+      },
+      "data": {
+        "title": "Data Management",
+        "description": "Import/export configurations and backup/restore"
+      }
+    },
     "language": "Language",
     "languageHint": "Preview interface language immediately after switching, takes effect permanently after saving.",
     "theme": "Theme",
@@ -365,6 +397,50 @@
     "hint": "You can continue to adjust the fields below after selecting a preset."
   },
   "usage": {
+    "title": "Usage Statistics",
+    "subtitle": "View AI model usage and cost statistics",
+    "today": "24 Hours",
+    "last7days": "7 Days",
+    "last30days": "30 Days",
+    "totalRequests": "Total Requests",
+    "totalCost": "Total Cost",
+    "cost": "Cost",
+    "perMillion": "(per million)",
+    "trends": "Usage Trends",
+    "rangeToday": "Today (hourly)",
+    "rangeLast7Days": "Last 7 days",
+    "rangeLast30Days": "Last 30 days",
+    "totalTokens": "Total Tokens",
+    "cacheTokens": "Cache Tokens",
+    "requestLogs": "Request Logs",
+    "providerStats": "Provider Stats",
+    "modelStats": "Model Stats",
+    "time": "Time",
+    "provider": "Provider",
+    "billingModel": "Billing Model",
+    "inputTokens": "Input",
+    "outputTokens": "Output",
+    "cacheReadTokens": "Cache Read",
+    "cacheCreationTokens": "Cache Write",
+    "timingInfo": "Duration/TTFT",
+    "status": "Status",
+    "noData": "No data",
+    "unknownProvider": "Unknown Provider",
+    "stream": "Stream",
+    "nonStream": "Non-stream",
+    "totalRecords": "{{total}} records total",
+    "modelPricing": "Model Pricing",
+    "loadPricingError": "Failed to load pricing data",
+    "modelPricingDesc": "Configure token costs for each model",
+    "noPricingData": "No pricing data. Click \"Add\" to add model pricing configuration.",
+    "model": "Model",
+    "displayName": "Display Name",
+    "inputCost": "Input Cost",
+    "outputCost": "Output Cost",
+    "cacheReadCost": "Cache Read",
+    "cacheWriteCost": "Cache Write",
+    "deleteConfirmTitle": "Confirm Delete",
+    "deleteConfirmDesc": "Are you sure you want to delete this model pricing? This action cannot be undone.",
     "queryFailed": "Query failed",
     "refreshUsage": "Refresh usage",
     "planUsage": "Plan usage",
@@ -944,5 +1020,17 @@
       "errorRateLabel": "Error Rate Threshold",
       "errorRateExplain": "Open circuit breaker when error rate exceeds this value, even if failure threshold not reached"
     }
+  },
+  "streamCheck": {
+    "configSaved": "Health check config saved",
+    "configSaveFailed": "Save failed",
+    "testModels": "Test Models",
+    "claudeModel": "Claude Model",
+    "codexModel": "Codex Model",
+    "geminiModel": "Gemini Model",
+    "checkParams": "Check Parameters",
+    "timeout": "Timeout (seconds)",
+    "maxRetries": "Max Retries",
+    "degradedThreshold": "Degraded Threshold (ms)"
   }
 }
diff --git a/src/i18n/locales/ja.json b/src/i18n/locales/ja.json
index 6a3f9ba9d..e12829d4c 100644
--- a/src/i18n/locales/ja.json
+++ b/src/i18n/locales/ja.json
@@ -32,7 +32,11 @@
     "back": "戻る",
     "refresh": "更新",
     "refreshing": "更新中...",
-    "notInstalled": "未インストール"
+    "all": "すべて",
+    "search": "検索",
+    "reset": "リセット",
+    "actions": "操作",
+    "deleting": "削除中..."
   },
   "apiKeyInput": {
     "placeholder": "API Key を入力",
@@ -142,6 +146,34 @@
     "general": "一般",
     "tabGeneral": "一般",
     "tabAdvanced": "詳細",
+    "advanced": {
+      "configDir": {
+        "title": "設定ディレクトリ",
+        "description": "Claude、Codex、Gemini の設定保存パスを管理"
+      },
+      "proxy": {
+        "title": "ローカルプロキシ",
+        "description": "プロキシサービスの切り替え、ステータスとポート情報を表示",
+        "running": "実行中",
+        "stopped": "停止中"
+      },
+      "modelTest": {
+        "title": "モデルテスト設定",
+        "description": "モデルテストで使用するデフォルトモデルとプロンプトを設定"
+      },
+      "failover": {
+        "title": "自動フェイルオーバー",
+        "description": "フェイルオーバーキューとサーキットブレーカー戦略を設定"
+      },
+      "pricing": {
+        "title": "コスト計算",
+        "description": "各モデルのトークン料金ルールを管理"
+      },
+      "data": {
+        "title": "データ管理",
+        "description": "設定のインポート/エクスポートとバックアップ/復元"
+      }
+    },
     "language": "言語",
     "languageHint": "切り替えるとすぐにプレビューされ、保存後に永続化されます。",
     "theme": "テーマ",
@@ -365,6 +397,50 @@
     "hint": "プリセットを選んだ後でも、下のフィールドで調整できます。"
   },
   "usage": {
+    "title": "利用統計",
+    "subtitle": "AI モデルの利用状況とコスト統計を表示",
+    "today": "24時間",
+    "last7days": "7日間",
+    "last30days": "30日間",
+    "totalRequests": "総リクエスト数",
+    "totalCost": "総コスト",
+    "cost": "コスト",
+    "perMillion": "(100万あたり)",
+    "trends": "利用トレンド",
+    "rangeToday": "今日 (時間別)",
+    "rangeLast7Days": "過去7日間",
+    "rangeLast30Days": "過去30日間",
+    "totalTokens": "総トークン数",
+    "cacheTokens": "キャッシュトークン",
+    "requestLogs": "リクエストログ",
+    "providerStats": "プロバイダー統計",
+    "modelStats": "モデル統計",
+    "time": "時間",
+    "provider": "プロバイダー",
+    "billingModel": "課金モデル",
+    "inputTokens": "入力",
+    "outputTokens": "出力",
+    "cacheReadTokens": "キャッシュ読取",
+    "cacheCreationTokens": "キャッシュ書込",
+    "timingInfo": "応答時間/TTFT",
+    "status": "ステータス",
+    "noData": "データなし",
+    "unknownProvider": "不明なプロバイダー",
+    "stream": "ストリーム",
+    "nonStream": "非ストリーム",
+    "totalRecords": "全 {{total}} 件",
+    "modelPricing": "モデル料金",
+    "loadPricingError": "料金データの読み込みに失敗しました",
+    "modelPricingDesc": "各モデルのトークンコストを設定",
+    "noPricingData": "料金データがありません。「追加」をクリックしてモデル料金を設定してください。",
+    "model": "モデル",
+    "displayName": "表示名",
+    "inputCost": "入力コスト",
+    "outputCost": "出力コスト",
+    "cacheReadCost": "キャッシュ読取",
+    "cacheWriteCost": "キャッシュ書込",
+    "deleteConfirmTitle": "削除の確認",
+    "deleteConfirmDesc": "このモデル料金を削除しますか？この操作は元に戻せません。",
     "queryFailed": "照会に失敗しました",
     "refreshUsage": "利用状況を更新",
     "planUsage": "プラン利用状況",
@@ -944,5 +1020,17 @@
       "errorRateLabel": "エラー率しきい値",
       "errorRateExplain": "失敗しきい値に達していなくても、エラー率がこの値を超えるとサーキットブレーカーが開きます"
     }
+  },
+  "streamCheck": {
+    "configSaved": "ヘルスチェック設定を保存しました",
+    "configSaveFailed": "保存に失敗しました",
+    "testModels": "テストモデル",
+    "claudeModel": "Claude モデル",
+    "codexModel": "Codex モデル",
+    "geminiModel": "Gemini モデル",
+    "checkParams": "チェックパラメーター",
+    "timeout": "タイムアウト（秒）",
+    "maxRetries": "最大リトライ回数",
+    "degradedThreshold": "劣化しきい値（ミリ秒）"
   }
 }
diff --git a/src/i18n/locales/zh.json b/src/i18n/locales/zh.json
index 9126ce13c..7ddabe595 100644
--- a/src/i18n/locales/zh.json
+++ b/src/i18n/locales/zh.json
@@ -32,7 +32,11 @@
     "back": "返回",
     "refresh": "刷新",
     "refreshing": "刷新中...",
-    "notInstalled": "未安装"
+    "all": "全部",
+    "search": "查询",
+    "reset": "重置",
+    "actions": "操作",
+    "deleting": "删除中..."
   },
   "apiKeyInput": {
     "placeholder": "请输入API Key",
@@ -142,6 +146,34 @@
     "general": "通用",
     "tabGeneral": "通用",
     "tabAdvanced": "高级",
+    "advanced": {
+      "configDir": {
+        "title": "配置文件目录",
+        "description": "管理 Claude、Codex 和 Gemini 的配置存储路径"
+      },
+      "proxy": {
+        "title": "本地代理",
+        "description": "控制代理服务开关、查看状态与端口信息",
+        "running": "运行中",
+        "stopped": "已停止"
+      },
+      "modelTest": {
+        "title": "模型测试配置",
+        "description": "配置模型测试使用的默认模型和提示词"
+      },
+      "failover": {
+        "title": "自动故障转移",
+        "description": "配置故障转移队列和熔断策略"
+      },
+      "pricing": {
+        "title": "成本定价",
+        "description": "管理各模型 Token 计费规则"
+      },
+      "data": {
+        "title": "数据管理",
+        "description": "导入导出配置与备份恢复"
+      }
+    },
     "language": "界面语言",
     "languageHint": "切换后立即预览界面语言，保存后永久生效。",
     "theme": "外观主题",
@@ -365,6 +397,50 @@
     "hint": "选择预设后可继续调整下方字段。"
   },
   "usage": {
+    "title": "使用统计",
+    "subtitle": "查看 AI 模型的使用情况和成本统计",
+    "today": "24小时",
+    "last7days": "7天",
+    "last30days": "30天",
+    "totalRequests": "总请求数",
+    "totalCost": "总成本",
+    "cost": "成本",
+    "perMillion": "(每百万)",
+    "trends": "使用趋势",
+    "rangeToday": "今天 (按小时)",
+    "rangeLast7Days": "过去 7 天",
+    "rangeLast30Days": "过去 30 天",
+    "totalTokens": "总 Token 数",
+    "cacheTokens": "缓存 Token",
+    "requestLogs": "请求日志",
+    "providerStats": "Provider 统计",
+    "modelStats": "模型统计",
+    "time": "时间",
+    "provider": "供应商",
+    "billingModel": "计费模型",
+    "inputTokens": "输入",
+    "outputTokens": "输出",
+    "cacheReadTokens": "缓存读取",
+    "cacheCreationTokens": "缓存写入",
+    "timingInfo": "用时/首字",
+    "status": "状态",
+    "noData": "暂无数据",
+    "unknownProvider": "未知供应商",
+    "stream": "流",
+    "nonStream": "非流",
+    "totalRecords": "共 {{total}} 条记录",
+    "modelPricing": "模型定价",
+    "loadPricingError": "加载定价数据失败",
+    "modelPricingDesc": "配置各模型的 Token 成本",
+    "noPricingData": "暂无定价数据。点击\"新增\"添加模型定价配置。",
+    "model": "模型",
+    "displayName": "显示名称",
+    "inputCost": "输入成本",
+    "outputCost": "输出成本",
+    "cacheReadCost": "缓存读取",
+    "cacheWriteCost": "缓存写入",
+    "deleteConfirmTitle": "确认删除",
+    "deleteConfirmDesc": "确定要删除此模型定价配置吗？此操作无法撤销。",
     "queryFailed": "查询失败",
     "refreshUsage": "刷新用量",
     "planUsage": "套餐用量",
@@ -944,5 +1020,17 @@
       "errorRateLabel": "错误率阈值",
       "errorRateExplain": "错误率超过此值时，即使未达到失败阈值也会打开熔断器"
     }
+  },
+  "streamCheck": {
+    "configSaved": "健康检查配置已保存",
+    "configSaveFailed": "保存失败",
+    "testModels": "测试模型",
+    "claudeModel": "Claude 模型",
+    "codexModel": "Codex 模型",
+    "geminiModel": "Gemini 模型",
+    "checkParams": "检查参数",
+    "timeout": "超时时间（秒）",
+    "maxRetries": "最大重试次数",
+    "degradedThreshold": "降级阈值（毫秒）"
   }
 }