diff --git a/src/components/WorkspaceView.test.ts b/src/components/WorkspaceView.test.ts
new file mode 100644
index 0000000..55767f3
--- /dev/null
+++ b/src/components/WorkspaceView.test.ts
@@ -0,0 +1,90 @@
+import { flushPromises, mount } from '@vue/test-utils'
+import { beforeEach, describe, expect, it, vi } from 'vitest'
+import { createEmptyBook, createEmptyTeachingDesign } from '../domain/teachingDesign'
+import * as booksApi from '../services/booksApi'
+import GenerateLessonDialog from './GenerateLessonDialog.vue'
+import WorkspaceView from './WorkspaceView.vue'
+
+vi.mock('../services/booksApi')
+
+function mockBook(data = createEmptyBook()): void {
+  vi.mocked(booksApi.getBook).mockResolvedValue({
+    id: 'b1',
+    name: '示例整本',
+    updatedAt: '2026-01-01T00:00:00.000Z',
+    data,
+  })
+}
+
+describe('WorkspaceView', () => {
+  beforeEach(() => {
+    vi.clearAllMocks()
+  })
+
+  it('shows a loading state while the book loads', () => {
+    vi.mocked(booksApi.getBook).mockReturnValue(new Promise(() => {}))
+
+    const wrapper = mount(WorkspaceView, { props: { bookId: 'b1' } })
+
+    expect(wrapper.text()).toContain('加载中')
+  })
+
+  it('shows an error and emits back when loading fails', async () => {
+    vi.mocked(booksApi.getBook).mockRejectedValue(new Error('整本不存在。'))
+
+    const wrapper = mount(WorkspaceView, { props: { bookId: 'missing' } })
+    await flushPromises()
+
+    expect(wrapper.text()).toContain('整本不存在。')
+
+    await wrapper.get('button').trigger('click')
+    expect(wrapper.emitted('back')).toHaveLength(1)
+  })
+
+  it('renders the toolbar and emits back when loaded', async () => {
+    mockBook()
+
+    const wrapper = mount(WorkspaceView, { props: { bookId: 'b1' } })
+    await flushPromises()
+
+    expect(wrapper.text()).toContain('点击或拖拽上传')
+
+    await wrapper.get('[data-testid="back"]').trigger('click')
+    expect(wrapper.emitted('back')).toHaveLength(1)
+  })
+
+  it('opens the generate dialog and adds a generated lesson on submit', async () => {
+    mockBook()
+    vi.mocked(booksApi.generateLesson).mockResolvedValue({
+      filename: 'css-flex.md',
+      markdown: '# CSS 弹性布局 教学设计',
+    })
+
+    const wrapper = mount(WorkspaceView, { props: { bookId: 'b1' } })
+    await flushPromises()
+
+    await wrapper.get('[data-testid="generate"]').trigger('click')
+    const dialog = wrapper.getComponent(GenerateLessonDialog)
+
+    dialog.vm.$emit('submit', 'CSS 弹性布局')
+    await flushPromises()
+
+    expect(booksApi.generateLesson).toHaveBeenCalledWith('CSS 弹性布局')
+    expect(wrapper.findComponent(GenerateLessonDialog).exists()).toBe(false)
+    expect(wrapper.text()).toContain('CSS 弹性布局')
+  })
+
+  it('clears the lessons after confirmation', async () => {
+    const data = createEmptyBook()
+    data.designs.push(createEmptyTeachingDesign('1.md'))
+    mockBook(data)
+    vi.spyOn(window, 'confirm').mockReturnValue(true)
+
+    const wrapper = mount(WorkspaceView, { props: { bookId: 'b1' } })
+    await flushPromises()
+
+    await wrapper.get('[data-testid="clear"]').trigger('click')
+
+    expect(wrapper.text()).toContain('点击或拖拽上传')
+  })
+})
diff --git a/src/components/WorkspaceView.vue b/src/components/WorkspaceView.vue
new file mode 100644
index 0000000..8f287be
--- /dev/null
+++ b/src/components/WorkspaceView.vue
@@ -0,0 +1,198 @@
+<script setup lang="ts">
+import { ref } from 'vue'
+import { type DuplicateStrategy, useTeachingBook } from '../composables/useTeachingBook'
+import type { TeachingDesign } from '../domain/teachingDesign'
+import { createBookZip, downloadBlob } from '../services/zipExporter'
+import A4Workspace from './A4Workspace.vue'
+import GenerateLessonDialog from './GenerateLessonDialog.vue'
+import ImportConflictDialog from './ImportConflictDialog.vue'
+import LessonSidebar from './LessonSidebar.vue'
+import PrintBook from './PrintBook.vue'
+import UploadDropzone from './UploadDropzone.vue'
+import WorkspaceToolbar from './WorkspaceToolbar.vue'
+
+const props = defineProps<{ bookId: string }>()
+
+defineEmits<{ back: [] }>()
+
+const {
+  book,
+  loadStatus,
+  loadError,
+  saveStatus,
+  lastError,
+  selectedDesign,
+  hasDesigns,
+  warningCount,
+  importFiles,
+  detectDuplicates,
+  selectPage,
+  moveDesign,
+  removeDesign,
+  updateCover,
+  updateDesign,
+  clearBook,
+  generateLesson,
+} = useTeachingBook(props.bookId)
+
+const pendingFiles = ref<File[]>([])
+const duplicateNames = ref<string[]>([])
+const errorMessage = ref<string | null>(null)
+const uploadRef = ref<InstanceType<typeof UploadDropzone> | null>(null)
+
+const showGenerateDialog = ref(false)
+const generateLoading = ref(false)
+const generateError = ref<string | null>(null)
+
+async function runImport(files: File[], strategy: DuplicateStrategy): Promise<void> {
+  const result = await importFiles(files, strategy)
+  if (result.failed.length > 0) {
+    errorMessage.value = `${result.failed.length} 个文件导入失败：${result.failed
+      .map((entry) => `${entry.filename}（${entry.message}）`)
+      .join('、')}`
+  }
+}
+
+async function handleFiles(files: File[]): Promise<void> {
+  const duplicates = detectDuplicates(files)
+  if (duplicates.length > 0) {
+    pendingFiles.value = files
+    duplicateNames.value = duplicates
+    return
+  }
+  await runImport(files, 'keep')
+}
+
+async function resolveConflict(strategy: DuplicateStrategy | 'cancel'): Promise<void> {
+  const files = pendingFiles.value
+  pendingFiles.value = []
+  duplicateNames.value = []
+  if (strategy === 'cancel') return
+  await runImport(files, strategy)
+}
+
+function triggerUpload(): void {
+  uploadRef.value?.openPicker()
+}
+
+function handlePrint(): void {
+  window.print()
+}
+
+async function handleExport(): Promise<void> {
+  try {
+    const blob = await createBookZip(book.value.designs)
+    downloadBlob(blob, 'teaching-design-book.zip')
+  } catch {
+    errorMessage.value = '导出失败，请重试。'
+  }
+}
+
+function handleClear(): void {
+  if (book.value.designs.length === 0) {
+    return
+  }
+  if (window.confirm('确定要清空当前所有教案吗？此操作无法撤销。')) {
+    clearBook()
+  }
+}
+
+function handleDesignUpdate(design: TeachingDesign): void {
+  updateDesign(design.id, (target) => Object.assign(target, design))
+}
+
+function openGenerateDialog(): void {
+  generateError.value = null
+  showGenerateDialog.value = true
+}
+
+async function handleGenerateSubmit(topic: string): Promise<void> {
+  generateLoading.value = true
+  generateError.value = null
+  const result = await generateLesson(topic)
+  generateLoading.value = false
+
+  if (result.ok) {
+    showGenerateDialog.value = false
+  } else {
+    generateError.value = result.message
+  }
+}
+
+function cancelGenerate(): void {
+  showGenerateDialog.value = false
+  generateError.value = null
+}
+</script>
+
+<template>
+  <div class="app-shell">
+    <p v-if="loadStatus === 'loading'">加载中…</p>
+
+    <div v-else-if="loadStatus === 'error'" class="app-notice app-notice--error" role="alert">
+      <span>{{ loadError }}</span>
+      <button type="button" @click="$emit('back')">返回列表</button>
+    </div>
+
+    <template v-else>
+      <ImportConflictDialog
+        v-if="duplicateNames.length > 0"
+        :duplicates="duplicateNames"
+        @replace="resolveConflict('replace')"
+        @keep="resolveConflict('keep')"
+        @cancel="resolveConflict('cancel')"
+      />
+      <GenerateLessonDialog
+        v-if="showGenerateDialog"
+        :loading="generateLoading"
+        :error="generateError"
+        @submit="handleGenerateSubmit"
+        @cancel="cancelGenerate"
+      />
+
+      <p v-if="errorMessage" class="app-notice app-notice--error" role="alert">
+        {{ errorMessage }}
+        <button type="button" @click="errorMessage = null">关闭</button>
+      </p>
+      <p v-if="saveStatus === 'error' && lastError" class="app-notice app-notice--error" role="alert">
+        {{ lastError }}
+      </p>
+
+      <WorkspaceToolbar
+        :lesson-count="book.designs.length"
+        :warning-count="warningCount"
+        :save-status="saveStatus"
+        @back="$emit('back')"
+        @upload="triggerUpload"
+        @generate="openGenerateDialog"
+        @print="handlePrint"
+        @export="handleExport"
+        @clear="handleClear"
+      />
+
+      <UploadDropzone v-if="!hasDesigns" @files="handleFiles" />
+
+      <template v-else>
+        <div class="workspace-layout">
+          <LessonSidebar
+            :designs="book.designs"
+            :selected-id="book.selectedId"
+            @select="selectPage"
+            @remove="removeDesign"
+            @move="moveDesign"
+          />
+          <A4Workspace
+            :cover="book.cover"
+            :selected-id="book.selectedId"
+            :selected-design="selectedDesign"
+            @update:cover="updateCover"
+            @update:design="handleDesignUpdate"
+          />
+        </div>
+        <UploadDropzone ref="uploadRef" compact class="visually-hidden" @files="handleFiles" />
+      </template>
+
+      <PrintBook :cover="book.cover" :designs="book.designs" />
+    </template>
+  </div>
+</template>