diff --git a/AGENTS.md b/AGENTS.md
index 8bf23bc..9160f34 100644
--- a/AGENTS.md
+++ b/AGENTS.md
@@ -1,3 +1,13 @@
+## AI八荣八耻
+
+1. Shame in guessing APIs, Honor in careful research.
+2. Shame in vague execution, Honor in seeking confirmation.
+3. Shame in assuming business logic, Honor in human verification.
+4. Shame in creating interfaces, Honor in reusing existing ones.
+5. Shame in skipping validation, Honor in proactive testing.
+6. Shame in breaking architecture, Honor in following specifications.
+7. Shame in pretending to understand, Honor in honest ignorance.
+8. Shame in blind modification, Honor in careful refactoring.
 
 ## 必须遵循
 
diff --git a/app/composables/useLlmChat.ts b/app/composables/useLlmChat.ts
new file mode 100644
index 0000000..5960ffa
--- /dev/null
+++ b/app/composables/useLlmChat.ts
@@ -0,0 +1,128 @@
+import { processDataStream } from 'ai'
+
+export interface LlmChatMessage {
+  id: string
+  role: 'user' | 'assistant'
+  content: string
+  reasoning?: string
+}
+
+export interface UseLlmChatOptions {
+  modelId: () => number | null
+  apiEndpoint?: string
+  systemPrompt?: () => string
+  enableThinking?: () => boolean
+}
+
+export function useLlmChat(options: UseLlmChatOptions) {
+  const {
+    modelId,
+    apiEndpoint = '/api/llm/chat',
+    systemPrompt,
+    enableThinking,
+  } = options
+
+  const messages = ref<LlmChatMessage[]>([])
+  const isLoading = ref(false)
+  const errorMessage = ref('')
+
+  let abortController: AbortController | null = null
+
+  function generateId(): string {
+    return Date.now().toString(36) + Math.random().toString(36).slice(2)
+  }
+
+  async function sendMessage(text: string) {
+    const trimmed = text.trim()
+    const mid = modelId()
+    if (!trimmed || mid === null || isLoading.value) return
+
+    errorMessage.value = ''
+
+    const userMsg: LlmChatMessage = { id: generateId(), role: 'user', content: trimmed }
+    messages.value.push(userMsg)
+
+    const assistantMsg: LlmChatMessage = { id: generateId(), role: 'assistant', content: '' }
+    messages.value.push(assistantMsg)
+    const assistantIdx = messages.value.length - 1
+
+    isLoading.value = true
+    abortController = new AbortController()
+
+    try {
+      const res = await fetch(apiEndpoint, {
+        method: 'POST',
+        headers: { 'Content-Type': 'application/json' },
+        body: JSON.stringify({
+          modelId: mid,
+          messages: [
+            ...(systemPrompt?.() ? [{ role: 'system' as const, content: systemPrompt() }] : []),
+            ...messages.value
+              .filter(m => m.content)
+              .map(m => ({ role: m.role, content: m.content })),
+          ],
+          enableThinking: enableThinking?.() ?? false,
+        }),
+        signal: abortController.signal,
+      })
+
+      if (!res.ok) {
+        const errText = await res.text()
+        throw new Error(errText || `请求失败 (${res.status})`)
+      }
+
+      if (!res.body) {
+        throw new Error('响应体为空')
+      }
+
+      await processDataStream({
+        stream: res.body,
+        onReasoningPart: (text) => {
+          const msg = messages.value[assistantIdx]
+          if (msg) msg.reasoning = (msg.reasoning ?? '') + text
+        },
+        onTextPart: (text) => {
+          const msg = messages.value[assistantIdx]
+          if (msg) msg.content += text
+        },
+        onErrorPart: (error) => {
+          errorMessage.value = error || '流式响应出错'
+        },
+      })
+    } catch (err: any) {
+      if (err.name === 'AbortError') {
+        // user stopped
+      } else {
+        errorMessage.value = err.message || '请求失败'
+        const msg = messages.value[assistantIdx]
+        if (msg && !msg.content) {
+          messages.value.splice(assistantIdx, 1)
+        }
+      }
+    } finally {
+      isLoading.value = false
+      abortController = null
+    }
+  }
+
+  function stopGeneration() {
+    if (abortController) {
+      abortController.abort()
+      abortController = null
+    }
+  }
+
+  function clearChat() {
+    messages.value = []
+    errorMessage.value = ''
+  }
+
+  return {
+    messages,
+    isLoading,
+    errorMessage,
+    sendMessage,
+    stopGeneration,
+    clearChat,
+  }
+}
diff --git a/app/pages/settings/llm-test/index.vue b/app/pages/settings/llm-test/index.vue
index 45ad4cf..d80d928 100644
--- a/app/pages/settings/llm-test/index.vue
+++ b/app/pages/settings/llm-test/index.vue
@@ -1,5 +1,4 @@
 <script setup lang="ts">
-import { processDataStream } from 'ai'
 interface ModelOption {
   id: number
   name: string
@@ -16,11 +15,7 @@ interface ProviderWithModels {
   models: ModelOption[]
 }
 
-interface ChatMessage {
-  id: string
-  role: 'user' | 'assistant'
-  content: string
-}
+const { $toast } = useNuxtApp()
 
 const { data: modelsData, refresh: refreshModels } = await useHttpFetch('/api/llm/chat/models', {
   getCachedData: () => undefined,
@@ -43,28 +38,22 @@ const allModels = computed(() => {
 })
 
 const selectedModelId = ref<number | null>(null)
+const systemPrompt = ref('')
+const enableThinking = ref(false)
 const chatContainer = ref<HTMLElement | null>(null)
-const messages = ref<ChatMessage[]>([])
-const inputMessage = ref('')
-const isLoading = ref(false)
-const errorMessage = ref('')
-let abortController: AbortController | null = null
 
 const selectedModel = computed(() => {
   if (!selectedModelId.value) return null
   return allModels.value.find(m => m.id === selectedModelId.value) ?? null
 })
 
-function showToast(message: string, type: 'success' | 'error' = 'success') {
-  if (import.meta.client) {
-    const event = new CustomEvent('toast', { detail: { message, type } })
-    window.dispatchEvent(event)
-  }
-}
+const { messages, isLoading, errorMessage, sendMessage, stopGeneration, clearChat } = useLlmChat({
+  modelId: () => selectedModelId.value,
+  systemPrompt: () => systemPrompt.value,
+  enableThinking: () => enableThinking.value,
+})
 
-function generateId() {
-  return Date.now().toString(36) + Math.random().toString(36).slice(2)
-}
+const inputMessage = ref('')
 
 watch(messages, () => {
   nextTick(() => {
@@ -74,87 +63,23 @@ watch(messages, () => {
   })
 }, { deep: true })
 
-async function sendMessage() {
+watch(errorMessage, (val) => {
+  if (val) {
+    $toast.error(val)
+  }
+})
+
+async function handleSend() {
   const text = inputMessage.value.trim()
   if (!text || !selectedModelId.value || isLoading.value) return
-
-  errorMessage.value = ''
   inputMessage.value = ''
-
-  const userMsg: ChatMessage = { id: generateId(), role: 'user', content: text }
-  messages.value.push(userMsg)
-
-  const assistantMsg: ChatMessage = { id: generateId(), role: 'assistant', content: '' }
-  messages.value.push(assistantMsg)
-  const assistantIdx = messages.value.length - 1
-
-  isLoading.value = true
-  abortController = new AbortController()
-
-  try {
-    const res = await fetch('/api/llm/chat', {
-      method: 'POST',
-      headers: { 'Content-Type': 'application/json' },
-      body: JSON.stringify({
-        modelId: selectedModelId.value,
-        messages: messages.value
-          .filter(m => m.content)
-          .map(m => ({ role: m.role, content: m.content })),
-      }),
-      signal: abortController.signal,
-    })
-
-    if (!res.ok) {
-      const errText = await res.text()
-      throw new Error(errText || `请求失败 (${res.status})`)
-    }
-
-    if (!res.body) {
-      throw new Error('响应体为空')
-    }
-
-    await processDataStream({
-      stream: res.body,
-      onTextPart: (text) => {
-        messages.value[assistantIdx].content += text
-      },
-      onErrorPart: (error) => {
-        errorMessage.value = error || '流式响应出错'
-        showToast(errorMessage.value, 'error')
-      },
-    })
-  } catch (err: any) {
-    if (err.name === 'AbortError') {
-      // user stopped
-    } else {
-      errorMessage.value = err.message || '请求失败'
-      showToast(err.message || '请求失败', 'error')
-      if (!messages.value[assistantIdx].content) {
-        messages.value.splice(assistantIdx, 1)
-      }
-    }
-  } finally {
-    isLoading.value = false
-    abortController = null
-  }
-}
-
-function stopGeneration() {
-  if (abortController) {
-    abortController.abort()
-    abortController = null
-  }
-}
-
-function clearChat() {
-  messages.value = []
-  errorMessage.value = ''
+  await sendMessage(text)
 }
 
 function handleKeydown(e: KeyboardEvent) {
   if (e.key === 'Enter' && !e.shiftKey) {
     e.preventDefault()
-    sendMessage()
+    handleSend()
   }
 }
 
@@ -167,20 +92,10 @@ function modelTypeClass(type: string) {
   const map: Record<string, string> = { text: 'type-text', vision: 'type-vision', multimodal: 'type-multimodal' }
   return map[type] ?? 'type-text'
 }
-
-function renderContent(content: string): string {
-  if (!content) return ''
-  return content
-    .replace(/&/g, '&amp;')
-    .replace(/</g, '&lt;')
-    .replace(/>/g, '&gt;')
-    .replace(/\n/g, '<br>')
-    .replace(/`([^`]+)`/g, '<code>$1</code>')
-    .replace(/\*\*([^*]+)\*\*/g, '<strong>$1</strong>')
-}
 </script>
 
 <template>
+  <ClientOnly>
   <div class="llm-test-page">
     <header class="page-header">
       <div class="header-left">
@@ -203,6 +118,29 @@ function renderContent(content: string): string {
           </select>
         </div>
 
+        <div class="panel-section">
+          <label class="panel-label">系统提示词</label>
+          <textarea
+            v-model="systemPrompt"
+            class="system-prompt-input"
+            placeholder="设定模型的角色和行为..."
+            rows="3"
+          ></textarea>
+        </div>
+
+        <div class="panel-section">
+          <label class="panel-label thinking-toggle">
+            <span>思考模式</span>
+            <button
+              :class="['toggle-switch', { active: enableThinking }]"
+              @click="enableThinking = !enableThinking"
+            >
+              <span class="toggle-knob"></span>
+            </button>
+          </label>
+          <p class="panel-hint">启用后，支持推理的模型会展示思考过程</p>
+        </div>
+
         <div v-if="selectedModel" class="model-info-card">
           <div class="model-info-header">
             <span class="model-info-name">{{ selectedModel.name }}</span>
@@ -254,34 +192,14 @@ function renderContent(content: string): string {
               <p class="welcome-hint">输入消息测试模型连接和响应效果</p>
             </div>
 
-            <template v-for="msg in messages" :key="msg.id">
-              <div
-                v-if="msg.content || msg.role === 'user'"
-                class="chat-message"
-                :class="[`message-${msg.role}`]"
-              >
-                <div class="message-avatar">
-                  <Icon v-if="msg.role === 'user'" name="lucide:user" />
-                  <Icon v-else name="lucide:bot" />
-                </div>
-                <div class="message-body">
-                  <div class="message-role">{{ msg.role === 'user' ? '你' : '助手' }}</div>
-                  <div class="message-content" v-html="renderContent(msg.content)"></div>
-                </div>
-              </div>
-            </template>
-
-            <div v-if="isLoading && messages.length > 0 && messages[messages.length - 1]?.content === ''" class="chat-message message-assistant">
-              <div class="message-avatar">
-                <Icon name="lucide:bot" />
-              </div>
-              <div class="message-body">
-                <div class="message-role">助手</div>
-                <div class="message-content typing-indicator">
-                  <span></span><span></span><span></span>
-                </div>
-              </div>
-            </div>
+            <BoChatBubble
+              v-for="msg in messages"
+              :key="msg.id"
+              :role="msg.role"
+              :content="msg.content"
+              :reasoning="msg.reasoning"
+              :loading="msg.role === 'assistant' && isLoading && !msg.content && !msg.reasoning"
+            />
           </div>
 
           <div v-if="errorMessage" class="chat-error">
@@ -312,7 +230,7 @@ function renderContent(content: string): string {
                   v-else
                   class="btn-send"
                   :disabled="!inputMessage.trim() || !selectedModelId"
-                  @click="sendMessage"
+                  @click="handleSend"
                 >
                   <Icon name="lucide:send" />
                 </button>
@@ -323,6 +241,7 @@ function renderContent(content: string): string {
       </div>
     </div>
   </div>
+  </ClientOnly>
 </template>
 
 <style scoped>
@@ -398,6 +317,75 @@ function renderContent(content: string): string {
   box-shadow: 0 0 0 3px rgba(204, 120, 92, 0.15);
 }
 
+.system-prompt-input {
+  width: 100%;
+  padding: 10px 14px;
+  background: var(--color-surface-card);
+  border: 1px solid var(--color-hairline);
+  border-radius: 8px;
+  font-size: 13px;
+  color: var(--color-ink);
+  resize: vertical;
+  line-height: 1.5;
+  font-family: inherit;
+  min-height: 60px;
+}
+
+.system-prompt-input:focus {
+  outline: none;
+  border-color: var(--color-primary);
+  box-shadow: 0 0 0 3px rgba(204, 120, 92, 0.15);
+}
+
+.system-prompt-input::placeholder {
+  color: var(--color-muted);
+}
+
+.thinking-toggle {
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+}
+
+.toggle-switch {
+  position: relative;
+  width: 36px;
+  height: 20px;
+  background: var(--color-hairline);
+  border: none;
+  border-radius: 10px;
+  cursor: pointer;
+  transition: background 0.2s ease;
+  padding: 0;
+  flex-shrink: 0;
+}
+
+.toggle-switch.active {
+  background: var(--color-primary);
+}
+
+.toggle-knob {
+  position: absolute;
+  top: 2px;
+  left: 2px;
+  width: 16px;
+  height: 16px;
+  background: #fff;
+  border-radius: 50%;
+  transition: transform 0.2s ease;
+}
+
+.toggle-switch.active .toggle-knob {
+  transform: translateX(16px);
+}
+
+.panel-hint {
+  font-size: 12px;
+  color: var(--color-muted);
+  margin: 0;
+  line-height: 1.4;
+}
+
 .model-info-card {
   background: var(--color-surface-card);
   border-radius: 10px;
@@ -578,129 +566,6 @@ function renderContent(content: string): string {
   margin: 0;
 }
 
-.chat-message {
-  display: flex;
-  gap: 12px;
-  max-width: 85%;
-}
-
-.message-user {
-  align-self: flex-end;
-  flex-direction: row-reverse;
-}
-
-.message-assistant {
-  align-self: flex-start;
-}
-
-.message-avatar {
-  width: 32px;
-  height: 32px;
-  border-radius: 8px;
-  display: flex;
-  align-items: center;
-  justify-content: center;
-  flex-shrink: 0;
-}
-
-.message-user .message-avatar {
-  background: var(--color-primary);
-  color: var(--color-on-primary);
-}
-
-.message-assistant .message-avatar {
-  background: var(--color-surface-soft);
-  color: var(--color-body-strong);
-}
-
-.message-avatar :deep(svg) {
-  width: 16px;
-  height: 16px;
-}
-
-.message-body {
-  display: flex;
-  flex-direction: column;
-  gap: 4px;
-}
-
-.message-role {
-  font-size: 11px;
-  font-weight: 500;
-  color: var(--color-muted);
-}
-
-.message-user .message-role {
-  text-align: right;
-}
-
-.message-content {
-  font-size: 14px;
-  line-height: 1.6;
-  color: var(--color-body);
-  word-break: break-word;
-}
-
-.message-user .message-content {
-  background: var(--color-primary);
-  color: var(--color-on-primary);
-  padding: 10px 14px;
-  border-radius: 12px 12px 4px 12px;
-}
-
-.message-assistant .message-content {
-  background: var(--color-canvas);
-  padding: 10px 14px;
-  border-radius: 12px 12px 12px 4px;
-  border: 1px solid var(--color-hairline);
-}
-
-.message-content :deep(code) {
-  background: rgba(0, 0, 0, 0.06);
-  padding: 1px 5px;
-  border-radius: 4px;
-  font-size: 13px;
-  font-family: monospace;
-}
-
-.message-user .message-content :deep(code) {
-  background: rgba(255, 255, 255, 0.2);
-}
-
-.typing-indicator {
-  display: flex;
-  gap: 4px;
-  align-items: center;
-  padding: 10px 14px;
-}
-
-.typing-indicator span {
-  width: 6px;
-  height: 6px;
-  border-radius: 50%;
-  background: var(--color-muted);
-  animation: typing 1.4s infinite;
-}
-
-.typing-indicator span:nth-child(2) {
-  animation-delay: 0.2s;
-}
-
-.typing-indicator span:nth-child(3) {
-  animation-delay: 0.4s;
-}
-
-@keyframes typing {
-  0%, 60%, 100% {
-    opacity: 0.3;
-    transform: scale(0.8);
-  }
-  30% {
-    opacity: 1;
-    transform: scale(1);
-  }
-}
-
 .chat-error {
   display: flex;
   align-items: center;
@@ -835,9 +700,5 @@ function renderContent(content: string): string {
   .chat-panel {
     min-height: 500px;
   }
-
-  .chat-message {
-    max-width: 95%;
-  }
 }
 </style>
diff --git a/packages/bolt-ui/README.md b/packages/bolt-ui/README.md
index 520d460..3132ba9 100644
--- a/packages/bolt-ui/README.md
+++ b/packages/bolt-ui/README.md
@@ -20,6 +20,7 @@ When used via the `bolt-ui/nuxt` module (already wired in `nuxt.config.ts`), com
 | `BoDialog` | Modal dialog with Teleport + Mask + Transition |
 | `BoDrawer` | Side-sliding panel (left/right) with mask, focus trap, and body scroll lock |
 | `BoMask` | Full-screen mask overlay |
+| `BoChatBubble` | Chat message bubble with user/assistant variants, simple Markdown rendering, and typing indicator |
 
 ## Drawer 抽屉
 
@@ -81,3 +82,30 @@ useClickOutside(elementRef, (event) => {
 ```
 
 监听元素外部的点击事件，可选地忽略某些元素。SSR 期间无操作，客户端 mount 后挂载。
+
+## ChatBubble 聊天气泡
+
+通用聊天气泡组件，支持用户/助手两种角色，内置简易 Markdown 渲染和打字指示器。
+
+### 基础用法
+
+```vue
+<BoChatBubble role="user" content="你好" />
+<BoChatBubble role="assistant" content="**你好！** 有什么可以帮你的？" />
+<BoChatBubble role="assistant" :loading="true" />
+```
+
+### Props
+
+| 名称 | 类型 | 默认值 | 说明 |
+|------|------|--------|------|
+| `role` | `'user' \| 'assistant'` | — | 消息角色，决定气泡方向和样式 |
+| `content` | `string` | `''` | 消息文本内容，支持简易 Markdown（code、bold、换行） |
+| `loading` | `boolean` | `false` | 是否显示打字指示器（三点动画） |
+
+### Slots
+
+| 名称 | 说明 |
+|------|------|
+| `default` | 自定义消息内容，覆盖 content 渲染 |
+| `avatar` | 自定义头像，覆盖默认图标 |
diff --git a/packages/bolt-ui/components/ChatBubble/index.ts b/packages/bolt-ui/components/ChatBubble/index.ts
new file mode 100644
index 0000000..0f48a68
--- /dev/null
+++ b/packages/bolt-ui/components/ChatBubble/index.ts
@@ -0,0 +1,5 @@
+import { withInstall } from 'bolt-ui/utils/vue/install'
+import ChatBubble from './src/ChatBubble.vue'
+
+export const BoChatBubble = withInstall(ChatBubble)
+export default BoChatBubble
diff --git a/packages/bolt-ui/components/ChatBubble/src/ChatBubble.vue b/packages/bolt-ui/components/ChatBubble/src/ChatBubble.vue
new file mode 100644
index 0000000..2fc0190
--- /dev/null
+++ b/packages/bolt-ui/components/ChatBubble/src/ChatBubble.vue
@@ -0,0 +1,66 @@
+<template>
+  <div :class="[b(), m(role)]">
+    <div :class="e('avatar')">
+      <slot name="avatar">
+        <svg v-if="role === 'user'" xmlns="http://www.w3.org/2000/svg" width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><path d="M19 21v-2a4 4 0 0 0-4-4H9a4 4 0 0 0-4 4v2"/><circle cx="12" cy="7" r="4"/></svg>
+        <svg v-else xmlns="http://www.w3.org/2000/svg" width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><path d="M12 8V4H8"/><rect width="16" height="12" x="4" y="8" rx="2"/><path d="M2 14h2"/><path d="M20 14h2"/><path d="M15 13v2"/><path d="M9 13v2"/></svg>
+      </slot>
+    </div>
+    <div :class="e('body')">
+      <div :class="e('role')">{{ role === 'user' ? '你' : '助手' }}</div>
+      <div v-if="role === 'assistant' && reasoning" :class="e('reasoning')">
+        <div :class="e('reasoning-header')" @click="reasoningExpanded = !reasoningExpanded">
+          <svg xmlns="http://www.w3.org/2000/svg" width="12" height="12" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><path d="M12 2a8 8 0 0 0-8 8c0 3.4 2.1 6.3 5 7.5V20h6v-2.5c2.9-1.2 5-4.1 5-7.5a8 8 0 0 0-8-8Z"/><path d="M9 22h6"/></svg>
+          <span>思考过程</span>
+          <svg :class="[e('reasoning-arrow'), { 'is-expanded': reasoningExpanded }]" xmlns="http://www.w3.org/2000/svg" width="12" height="12" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><path d="m6 9 6 6 6-6"/></svg>
+        </div>
+        <div v-show="reasoningExpanded" :class="e('reasoning-content')" v-html="renderedReasoning"></div>
+      </div>
+      <div :class="e('content')">
+        <slot>
+          <span v-if="!content && !reasoning && loading" :class="e('typing')">
+            <span></span><span></span><span></span>
+          </span>
+          <span v-else v-html="renderedContent"></span>
+        </slot>
+      </div>
+    </div>
+  </div>
+</template>
+
+<script setup lang="ts">
+import { useNamespace } from 'bolt-ui/utils/hooks/use-namespace'
+
+const props = withDefaults(
+  defineProps<{
+    role: 'user' | 'assistant'
+    content?: string
+    reasoning?: string
+    loading?: boolean
+  }>(),
+  {
+    content: '',
+    reasoning: '',
+    loading: false,
+  },
+)
+
+const { b, m, e } = useNamespace('chat-bubble')
+defineOptions({ name: 'BoChatBubble' })
+
+const reasoningExpanded = ref(true)
+
+function renderSimpleMarkdown(text: string): string {
+  if (!text) return ''
+  return text
+    .replace(/&/g, '&amp;')
+    .replace(/</g, '&lt;')
+    .replace(/>/g, '&gt;')
+    .replace(/\n/g, '<br>')
+    .replace(/`([^`]+)`/g, '<code>$1</code>')
+    .replace(/\*\*([^*]+)\*\*/g, '<strong>$1</strong>')
+}
+
+const renderedContent = computed(() => renderSimpleMarkdown(props.content))
+const renderedReasoning = computed(() => renderSimpleMarkdown(props.reasoning))
+</script>
diff --git a/packages/bolt-ui/components/index.ts b/packages/bolt-ui/components/index.ts
index ebfe828..9562338 100644
--- a/packages/bolt-ui/components/index.ts
+++ b/packages/bolt-ui/components/index.ts
@@ -4,4 +4,5 @@ export * from './Container'
 export * from './Dialog'
 export * from './Mask'
 export * from './Drawer'
-export * from './MdEditor'
\ No newline at end of file
+export * from './MdEditor'
+export * from './ChatBubble'
\ No newline at end of file
diff --git a/packages/bolt-ui/theme-chalk/src/chat-bubble.scss b/packages/bolt-ui/theme-chalk/src/chat-bubble.scss
new file mode 100644
index 0000000..70cea8d
--- /dev/null
+++ b/packages/bolt-ui/theme-chalk/src/chat-bubble.scss
@@ -0,0 +1,217 @@
+@use 'core/_base' as *;
+
+@include setNamespace('chat-bubble');
+
+#{b()} {
+  display: flex;
+  gap: 10px;
+  max-width: 85%;
+  align-items: flex-start;
+
+  #{e('avatar')} {
+    width: 28px;
+    height: 28px;
+    border-radius: 50%;
+    display: flex;
+    align-items: center;
+    justify-content: center;
+    flex-shrink: 0;
+    margin-top: 2px;
+  }
+
+  #{e('body')} {
+    display: flex;
+    flex-direction: column;
+    gap: 4px;
+  }
+
+  #{e('role')} {
+    font-size: 12px;
+    font-weight: 500;
+    color: var(--color-muted);
+  }
+
+  #{e('content')} {
+    font-size: 14px;
+    line-height: 1.6;
+    color: var(--color-body);
+    word-break: break-word;
+    padding: 10px 14px;
+    position: relative;
+
+    :deep(code) {
+      background: rgba(0, 0, 0, 0.06);
+      padding: 1px 5px;
+      border-radius: 4px;
+      font-size: 13px;
+      font-family: monospace;
+    }
+
+    :deep(strong) {
+      font-weight: 600;
+    }
+  }
+
+  #{e('reasoning')} {
+    margin-bottom: 4px;
+  }
+
+  #{e('reasoning-header')} {
+    display: flex;
+    align-items: center;
+    gap: 4px;
+    padding: 6px 10px;
+    font-size: 12px;
+    font-weight: 500;
+    color: var(--color-muted);
+    cursor: pointer;
+    border-radius: 8px 8px 0 0;
+    background: var(--color-surface-soft);
+    border: 1px solid var(--color-hairline);
+    border-bottom: none;
+    user-select: none;
+    transition: background 0.15s ease;
+
+    &:hover {
+      background: var(--color-hairline);
+    }
+  }
+
+  #{e('reasoning-arrow')} {
+    margin-left: auto;
+    transition: transform 0.2s ease;
+
+    &.is-expanded {
+      transform: rotate(180deg);
+    }
+  }
+
+  #{e('reasoning-content')} {
+    padding: 8px 10px;
+    font-size: 13px;
+    line-height: 1.5;
+    color: var(--color-muted);
+    background: var(--color-surface-soft);
+    border: 1px solid var(--color-hairline);
+    border-radius: 0 0 8px 8px;
+    white-space: pre-wrap;
+
+    :deep(code) {
+      background: rgba(0, 0, 0, 0.06);
+      padding: 1px 5px;
+      border-radius: 4px;
+      font-size: 12px;
+      font-family: monospace;
+    }
+  }
+
+  #{e('typing')} {
+    display: flex;
+    gap: 4px;
+    align-items: center;
+
+    span {
+      width: 6px;
+      height: 6px;
+      border-radius: 50%;
+      background: var(--color-muted);
+      animation: bo-chat-bubble-typing 1.4s infinite;
+
+      &:nth-child(2) {
+        animation-delay: 0.2s;
+      }
+
+      &:nth-child(3) {
+        animation-delay: 0.4s;
+      }
+    }
+  }
+
+  // ── user variant ──
+  &#{m('user')} {
+    align-self: flex-end;
+    flex-direction: row-reverse;
+
+    #{e('avatar')} {
+      background: var(--color-primary);
+      color: var(--color-on-primary);
+    }
+
+    #{e('role')} {
+      text-align: right;
+    }
+
+    #{e('content')} {
+      background: var(--color-primary);
+      color: var(--color-on-primary);
+      border-radius: 12px 12px 4px 12px;
+
+      &::after {
+        content: '';
+        position: absolute;
+        right: -6px;
+        top: 8px;
+        width: 0;
+        height: 0;
+        border-left: 6px solid var(--color-primary);
+        border-top: 4px solid transparent;
+        border-bottom: 4px solid transparent;
+      }
+
+      :deep(code) {
+        background: rgba(255, 255, 255, 0.2);
+      }
+    }
+  }
+
+  // ── assistant variant ──
+  &#{m('assistant')} {
+    align-self: flex-start;
+
+    #{e('avatar')} {
+      background: var(--color-surface-soft);
+      color: var(--color-body-strong);
+    }
+
+    #{e('content')} {
+      background: var(--color-canvas);
+      border-radius: 12px 12px 12px 4px;
+      border: 1px solid var(--color-hairline);
+
+      &::after {
+        content: '';
+        position: absolute;
+        left: -6px;
+        top: 8px;
+        width: 0;
+        height: 0;
+        border-right: 6px solid var(--color-canvas);
+        border-top: 4px solid transparent;
+        border-bottom: 4px solid transparent;
+      }
+
+      &::before {
+        content: '';
+        position: absolute;
+        left: -7px;
+        top: 8px;
+        width: 0;
+        height: 0;
+        border-right: 7px solid var(--color-hairline);
+        border-top: 4.5px solid transparent;
+        border-bottom: 4.5px solid transparent;
+      }
+    }
+  }
+}
+
+@keyframes bo-chat-bubble-typing {
+  0%, 60%, 100% {
+    opacity: 0.3;
+    transform: scale(0.8);
+  }
+  30% {
+    opacity: 1;
+    transform: scale(1);
+  }
+}
diff --git a/packages/drizzle-pkg/db.sqlite b/packages/drizzle-pkg/db.sqlite
index b4abbac..1816764 100644
Binary files a/packages/drizzle-pkg/db.sqlite and b/packages/drizzle-pkg/db.sqlite differ
diff --git a/server/api/llm/chat/index.post.ts b/server/api/llm/chat/index.post.ts
index 621e79a..7c49a6d 100644
--- a/server/api/llm/chat/index.post.ts
+++ b/server/api/llm/chat/index.post.ts
@@ -10,9 +10,10 @@ export default defineEventHandler(async (event) => {
   }
 
   const body = await readBody(event);
-  const { modelId: llmModelId, messages } = body as {
+  const { modelId: llmModelId, messages, enableThinking } = body as {
     modelId: number;
     messages: { role: "user" | "assistant" | "system"; content: string }[];
+    enableThinking?: boolean;
   };
 
   if (!llmModelId || !messages || !Array.isArray(messages) || messages.length === 0) {
@@ -48,7 +49,8 @@ export default defineEventHandler(async (event) => {
     model: openai(model.modelId),
     messages,
     maxTokens: model.maxTokens || undefined,
+    ...(enableThinking ? { providerOptions: { openai: { reasoningEffort: 'high' } } } : {}),
   });
 
-  return result.toDataStreamResponse();
+  return result.toDataStreamResponse({ sendReasoning: true });
 });