diff --git a/src/main/presenter/configPresenter/providers.ts b/src/main/presenter/configPresenter/providers.ts
index dd84070a9..6e20f6892 100644
--- a/src/main/presenter/configPresenter/providers.ts
+++ b/src/main/presenter/configPresenter/providers.ts
@@ -199,6 +199,21 @@ export const DEFAULT_PROVIDERS: LLM_PROVIDER_BASE[] = [
       defaultBaseUrl: 'https://openrouter.ai/api/v1/'
     }
   },
+  {
+    id: 'poe',
+    name: 'Poe',
+    apiType: 'poe',
+    apiKey: '',
+    baseUrl: 'https://api.poe.com/v1',
+    enable: false,
+    websites: {
+      official: 'https://poe.com/',
+      apiKey: 'https://poe.com/api_key',
+      docs: 'https://creator.poe.com/docs/external-applications/openai-compatible-api',
+      models: 'https://api.poe.com/v1/models',
+      defaultBaseUrl: 'https://api.poe.com/v1'
+    }
+  },
   {
     id: '302ai',
     name: '302.AI',
diff --git a/src/main/presenter/llmProviderPresenter/index.ts b/src/main/presenter/llmProviderPresenter/index.ts
index 1fa8f7311..a428be748 100644
--- a/src/main/presenter/llmProviderPresenter/index.ts
+++ b/src/main/presenter/llmProviderPresenter/index.ts
@@ -47,6 +47,7 @@ import { AihubmixProvider } from './providers/aihubmixProvider'
 import { _302AIProvider } from './providers/_302AIProvider'
 import { ModelscopeProvider } from './providers/modelscopeProvider'
 import { VercelAIGatewayProvider } from './providers/vercelAIGatewayProvider'
+import { PoeProvider } from './providers/poeProvider'
 
 // Rate limit configuration interface
 interface RateLimitConfig {
@@ -212,6 +213,8 @@ export class LLMProviderPresenter implements ILlmProviderPresenter {
           return new GroqProvider(provider, this.configPresenter)
         case 'vercel-ai-gateway':
           return new VercelAIGatewayProvider(provider, this.configPresenter)
+        case 'poe':
+          return new PoeProvider(provider, this.configPresenter)
         case 'aws-bedrock':
           return new AwsBedrockProvider(provider, this.configPresenter)
         default:
@@ -264,6 +267,8 @@ export class LLMProviderPresenter implements ILlmProviderPresenter {
           return new GrokProvider(provider, this.configPresenter)
         case 'vercel-ai-gateway':
           return new VercelAIGatewayProvider(provider, this.configPresenter)
+        case 'poe':
+          return new PoeProvider(provider, this.configPresenter)
         case 'aws-bedrock':
           return new AwsBedrockProvider(provider, this.configPresenter)
         default:
diff --git a/src/main/presenter/llmProviderPresenter/providers/poeProvider.ts b/src/main/presenter/llmProviderPresenter/providers/poeProvider.ts
new file mode 100644
index 000000000..9eca00ef5
--- /dev/null
+++ b/src/main/presenter/llmProviderPresenter/providers/poeProvider.ts
@@ -0,0 +1,25 @@
+import { LLM_PROVIDER, MODEL_META, IConfigPresenter } from '@shared/presenter'
+import { OpenAICompatibleProvider } from './openAICompatibleProvider'
+
+/**
+ * PoeProvider integrates Poe's OpenAI-compatible API surface with the shared
+ * BaseLLMProvider contract so the rest of the app can treat it just like
+ * any other OpenAI-style backend.
+ *
+ * Poe exposes hundreds of community and frontier models through a single
+ * endpoint. We reuse the OpenAICompatibleProvider implementation and only
+ * tweak metadata so the renderer can present a clearer group name.
+ */
+export class PoeProvider extends OpenAICompatibleProvider {
+  constructor(provider: LLM_PROVIDER, configPresenter: IConfigPresenter) {
+    super(provider, configPresenter)
+  }
+
+  protected async fetchOpenAIModels(options?: { timeout: number }): Promise<MODEL_META[]> {
+    const models = await super.fetchOpenAIModels(options)
+    return models.map((model) => ({
+      ...model,
+      group: 'Poe'
+    }))
+  }
+}
diff --git a/src/renderer/settings/components/DisplaySettings.vue b/src/renderer/settings/components/DisplaySettings.vue
index cdea6c001..48dccbf08 100644
--- a/src/renderer/settings/components/DisplaySettings.vue
+++ b/src/renderer/settings/components/DisplaySettings.vue
@@ -212,6 +212,29 @@
         </ButtonGroup>
       </div>
 
+      <!-- 代码字体大小设置 -->
+      <div class="flex flex-col gap-2 px-2 py-2">
+        <span
+          class="flex items-center gap-2 text-sm font-medium shrink-0 min-w-[220px]"
+          :dir="languageStore.dir"
+        >
+          <Icon icon="lucide:code" class="w-4 h-4 text-muted-foreground" />
+          <span class="truncate">{{ t('settings.display.codeFontSize') }}</span>
+        </span>
+        <ButtonGroup class="flex-wrap">
+          <Button
+            v-for="(sizeOption, index) in codeFontSizeOptions"
+            :key="index"
+            :variant="codeFontSizeLevel === index ? 'default' : 'outline'"
+            size="sm"
+            class="px-2 py-1.5 text-xs shrink-0"
+            @click="codeFontSizeLevel = index"
+          >
+            {{ sizeOption }}
+          </Button>
+        </ButtonGroup>
+      </div>
+
       <!-- 投屏保护开关 -->
       <div class="flex items-center gap-3 px-2 py-2">
         <span
@@ -410,6 +433,14 @@ const fontSizeLevel = computed({
   set: (value) => settingsStore.updateFontSizeLevel(value)
 })
 
+// --- Code Font Size Settings ---
+const codeFontSizeOptions = ['12px', '14px', '16px', '18px', '20px']
+
+const codeFontSizeLevel = computed({
+  get: () => settingsStore.codeFontSizeLevel,
+  set: (value) => settingsStore.updateCodeFontSizeLevel(value)
+})
+
 // --- Content Protection Settings ---
 const contentProtectionEnabled = computed({
   get: () => {
diff --git a/src/renderer/src/App.vue b/src/renderer/src/App.vue
index 933cbb755..094279707 100644
--- a/src/renderer/src/App.vue
+++ b/src/renderer/src/App.vue
@@ -18,6 +18,7 @@ import ThreadView from '@/components/ThreadView.vue'
 import ModelCheckDialog from '@/components/settings/ModelCheckDialog.vue'
 import { useModelCheckStore } from '@/stores/modelCheck'
 import MessageDialog from './components/ui/MessageDialog.vue'
+import { useCodeFontSize } from '@/composables/useCodeFontSize'
 import 'vue-sonner/style.css' // vue-sonner v2 requires this import
 
 const route = useRoute()
@@ -30,6 +31,9 @@ const themeStore = useThemeStore()
 const langStore = useLanguageStore()
 const modelCheckStore = useModelCheckStore()
 const { t } = useI18n()
+
+// Initialize code font size
+useCodeFontSize()
 // Error notification queue and currently displayed error
 const errorQueue = ref<Array<{ id: string; title: string; message: string; type: string }>>([])
 const currentErrorId = ref<string | null>(null)
diff --git a/src/renderer/src/assets/style.css b/src/renderer/src/assets/style.css
index c46dc5edb..0633e71f1 100644
--- a/src/renderer/src/assets/style.css
+++ b/src/renderer/src/assets/style.css
@@ -150,6 +150,7 @@
 
   html {
     --dc-font-scale: 1;
+    --dc-code-font-size: 14px;
   }
 
   html.text-sm {
@@ -979,3 +980,12 @@
     font-weight: var(--text-weight);
   }
 }
+
+/* Code font size customization */
+.prose pre,
+.prose code,
+.prose pre code,
+.cm-editor .cm-content,
+.cm-editor .cm-line {
+  font-size: var(--dc-code-font-size) !important;
+}
diff --git a/src/renderer/src/components/ChatInput.vue b/src/renderer/src/components/ChatInput.vue
index 4ac0a4899..67d6c1d4a 100644
--- a/src/renderer/src/components/ChatInput.vue
+++ b/src/renderer/src/components/ChatInput.vue
@@ -1,6 +1,6 @@
 <template>
   <div
-    class="w-full max-w-4xl mx-auto"
+    class="w-full"
     @dragenter.prevent="handleDragEnter"
     @dragover.prevent="handleDragOver"
     @drop.prevent="handleDrop"
diff --git a/src/renderer/src/components/icons/ModelIcon.vue b/src/renderer/src/components/icons/ModelIcon.vue
index b1464e1c9..91b574e42 100644
--- a/src/renderer/src/components/icons/ModelIcon.vue
+++ b/src/renderer/src/components/icons/ModelIcon.vue
@@ -44,6 +44,7 @@ import ppioColorIcon from '@/assets/llm-icons/ppio-color.svg?url'
 import tokenfluxColorIcon from '@/assets/llm-icons/tokenflux-color.svg?url'
 import moonshotColorIcon from '@/assets/llm-icons/moonshot.svg?url'
 import openrouterColorIcon from '@/assets/llm-icons/openrouter.svg?url'
+import poeColorIcon from '@/assets/llm-icons/poe-color.svg?url'
 import geminiColorIcon from '@/assets/llm-icons/gemini-color.svg?url'
 import githubColorIcon from '@/assets/llm-icons/github.svg?url'
 import azureOpenaiColorIcon from '@/assets/llm-icons/azure-color.svg?url'
@@ -119,6 +120,7 @@ const icons = {
   qwen: qwenColorIcon,
   moonshot: moonshotColorIcon,
   openrouter: openrouterColorIcon,
+  poe: poeColorIcon,
   gemini: geminiColorIcon,
   github: githubColorIcon,
   anthropic: claudeColorIcon,
diff --git a/src/renderer/src/composables/useCodeFontSize.ts b/src/renderer/src/composables/useCodeFontSize.ts
new file mode 100644
index 000000000..d58243438
--- /dev/null
+++ b/src/renderer/src/composables/useCodeFontSize.ts
@@ -0,0 +1,25 @@
+import { watch } from 'vue'
+import { useSettingsStore } from '@/stores/settings'
+
+/**
+ * Composable for managing code font size
+ * Updates the CSS custom property when the setting changes
+ */
+export function useCodeFontSize() {
+  const settingsStore = useSettingsStore()
+
+  // Update CSS custom property when code font size changes
+  watch(
+    () => settingsStore.codeFontSizeValue,
+    (newSize) => {
+      document.documentElement.style.setProperty('--dc-code-font-size', newSize)
+    },
+    { immediate: true }
+  )
+
+  return {
+    codeFontSizeLevel: settingsStore.codeFontSizeLevel,
+    codeFontSizeValue: settingsStore.codeFontSizeValue,
+    updateCodeFontSizeLevel: settingsStore.updateCodeFontSizeLevel
+  }
+}
diff --git a/src/renderer/src/i18n/en-US/settings.json b/src/renderer/src/i18n/en-US/settings.json
index df9b44355..824f95283 100644
--- a/src/renderer/src/i18n/en-US/settings.json
+++ b/src/renderer/src/i18n/en-US/settings.json
@@ -754,6 +754,7 @@
     "text-lg": "Large",
     "text-xl": "X-Large",
     "text-2xl": "XX-Large",
+    "codeFontSize": "Code font size",
     "floatingButton": "Floating Button",
     "floatingButtonDesc": "Display a floating button on the desktop to quickly activate the application window"
   },
diff --git a/src/renderer/src/i18n/zh-CN/settings.json b/src/renderer/src/i18n/zh-CN/settings.json
index 119b7cf22..010e8b9f1 100644
--- a/src/renderer/src/i18n/zh-CN/settings.json
+++ b/src/renderer/src/i18n/zh-CN/settings.json
@@ -754,6 +754,7 @@
     "text-lg": "大",
     "text-xl": "特大",
     "text-2xl": "超大",
+    "codeFontSize": "代码字体大小",
     "floatingButton": "悬浮按钮",
     "floatingButtonDesc": "在桌面显示一个悬浮按钮，可以快速唤起应用窗口"
   },
diff --git a/src/renderer/src/stores/settings.ts b/src/renderer/src/stores/settings.ts
index 96570c8b2..96155d8df 100644
--- a/src/renderer/src/stores/settings.ts
+++ b/src/renderer/src/stores/settings.ts
@@ -16,6 +16,10 @@ import { useThrottleFn } from '@vueuse/core'
 const FONT_SIZE_CLASSES = ['text-sm', 'text-base', 'text-lg', 'text-xl', 'text-2xl']
 const DEFAULT_FONT_SIZE_LEVEL = 1 // 对应 'text-base'
 
+// 定义代码字体大小级别对应的 CSS 值
+const CODE_FONT_SIZE_VALUES = ['12px', '14px', '16px', '18px', '20px']
+const DEFAULT_CODE_FONT_SIZE_LEVEL = 1 // 对应 '14px'
+
 export const useSettingsStore = defineStore('settings', () => {
   const configP = usePresenter('configPresenter')
   const llmP = usePresenter('llmproviderPresenter')
@@ -35,6 +39,7 @@ export const useSettingsStore = defineStore('settings', () => {
   const copyWithCotEnabled = ref<boolean>(true)
   const notificationsEnabled = ref<boolean>(true) // 系统通知是否启用，默认启用
   const fontSizeLevel = ref<number>(DEFAULT_FONT_SIZE_LEVEL) // 字体大小级别，默认为 1
+  const codeFontSizeLevel = ref<number>(DEFAULT_CODE_FONT_SIZE_LEVEL) // 代码字体大小级别，默认为 1
   // Ollama 相关状态
   const ollamaRunningModels = ref<OllamaModel[]>([])
   const ollamaLocalModels = ref<OllamaModel[]>([])
@@ -231,6 +236,11 @@ export const useSettingsStore = defineStore('settings', () => {
     () => FONT_SIZE_CLASSES[fontSizeLevel.value] || FONT_SIZE_CLASSES[DEFAULT_FONT_SIZE_LEVEL]
   )
 
+  // 代码字体大小对应的 CSS 值
+  const codeFontSizeValue = computed(
+    () => CODE_FONT_SIZE_VALUES[codeFontSizeLevel.value] || CODE_FONT_SIZE_VALUES[DEFAULT_CODE_FONT_SIZE_LEVEL]
+  )
+
   // 维护 provider 状态变更时间戳的映射
   const providerTimestamps = ref<Record<string, number>>({})
 
@@ -312,6 +322,14 @@ export const useSettingsStore = defineStore('settings', () => {
         fontSizeLevel.value = DEFAULT_FONT_SIZE_LEVEL
       }
 
+      // 获取代码字体大小级别
+      codeFontSizeLevel.value =
+        (await configP.getSetting<number>('codeFontSizeLevel')) ?? DEFAULT_CODE_FONT_SIZE_LEVEL
+      // 确保级别在有效范围内
+      if (codeFontSizeLevel.value < 0 || codeFontSizeLevel.value >= CODE_FONT_SIZE_VALUES.length) {
+        codeFontSizeLevel.value = DEFAULT_CODE_FONT_SIZE_LEVEL
+      }
+
       // 获取搜索预览设置
       searchPreviewEnabled.value = await configP.getSearchPreviewEnabled()
 
@@ -642,6 +660,15 @@ export const useSettingsStore = defineStore('settings', () => {
     }
   }
 
+  // 更新代码字体大小级别
+  const updateCodeFontSizeLevel = async (level: number) => {
+    const validLevel = Math.max(0, Math.min(level, CODE_FONT_SIZE_VALUES.length - 1))
+    if (codeFontSizeLevel.value !== validLevel) {
+      codeFontSizeLevel.value = validLevel
+      await configP.setSetting('codeFontSizeLevel', validLevel)
+    }
+  }
+
   // 监听 provider 设置变化
   const setupProviderListener = () => {
     // 监听配置变更事件
@@ -1750,6 +1777,8 @@ export const useSettingsStore = defineStore('settings', () => {
     providers,
     fontSizeLevel, // Expose font size level
     fontSizeClass, // Expose font size class
+    codeFontSizeLevel, // Expose code font size level
+    codeFontSizeValue, // Expose code font size CSS value
     enabledModels,
     allProviderModels,
     customModels,
@@ -1763,6 +1792,7 @@ export const useSettingsStore = defineStore('settings', () => {
     loggingEnabled,
     updateProvider,
     updateFontSizeLevel, // Expose update function
+    updateCodeFontSizeLevel, // Expose code font size update function
     initSettings,
     searchModels,
     refreshAllModels,