update

2026-06-15 01:48:03 -06:00
parent 2bd1e0399a
commit 379ff41947
40 changed files with 2669 additions and 360 deletions
--- a/src/App.test.ts
+++ b/src/App.test.ts
@@ -0,0 +1,13 @@
+import { mount } from '@vue/test-utils'
+import { beforeEach, describe, expect, it } from 'vitest'
+import App from './App.vue'
+
+describe('App', () => {
+  beforeEach(() => localStorage.clear())
+
+  it('starts with the multi-file upload screen', () => {
+    const wrapper = mount(App)
+    expect(wrapper.get('input[type="file"]').attributes('multiple')).toBeDefined()
+    expect(wrapper.text()).toContain('上传 Markdown')
+  })
+})
--- a/src/App.vue
+++ b/src/App.vue
@@ -1,7 +1,174 @@
 <script setup lang="ts">
-import HelloWorld from './components/HelloWorld.vue'
+import { onMounted, ref } from 'vue'
+import A4Workspace from './components/A4Workspace.vue'
+import ImportConflictDialog from './components/ImportConflictDialog.vue'
+import LessonSidebar from './components/LessonSidebar.vue'
+import PrintBook from './components/PrintBook.vue'
+import RestoreDraftDialog from './components/RestoreDraftDialog.vue'
+import UploadDropzone from './components/UploadDropzone.vue'
+import WorkspaceToolbar from './components/WorkspaceToolbar.vue'
+import { type DuplicateStrategy, useTeachingBook } from './composables/useTeachingBook'
+import { clearStoredBook, loadStoredBook } from './services/bookStorage'
+import type { TeachingBook, TeachingDesign } from './domain/teachingDesign'
+import { createBookZip, downloadBlob } from './services/zipExporter'
+
+const {
+  book,
+  saveStatus,
+  lastError,
+  selectedDesign,
+  hasDesigns,
+  warningCount,
+  importFiles,
+  detectDuplicates,
+  selectPage,
+  moveDesign,
+  removeDesign,
+  updateCover,
+  updateDesign,
+  restore,
+  clearBook,
+} = useTeachingBook()
+
+const restoreCandidate = ref<TeachingBook | null>(null)
+const pendingFiles = ref<File[]>([])
+const duplicateNames = ref<string[]>([])
+const errorMessage = ref<string | null>(null)
+const uploadRef = ref<InstanceType<typeof UploadDropzone> | null>(null)
+
+onMounted(() => {
+  const stored = loadStoredBook()
+  if (stored && stored.designs.length > 0) {
+    restoreCandidate.value = stored
+  }
+})
+
+function restoreDraft(): void {
+  if (restoreCandidate.value) {
+    restore(restoreCandidate.value)
+  }
+  restoreCandidate.value = null
+}
+
+function discardDraft(): void {
+  clearStoredBook()
+  restoreCandidate.value = 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()
+    clearStoredBook()
+  }
+}
+
+function handleDesignUpdate(design: TeachingDesign): void {
+  updateDesign(design.id, (target) => Object.assign(target, design))
+}
 </script>

 <template>
-  <HelloWorld />
+  <div class="app-shell">
+    <RestoreDraftDialog
+      v-if="restoreCandidate"
+      :updated-at="restoreCandidate.updatedAt"
+      @restore="restoreDraft"
+      @discard="discardDraft"
+    />
+    <ImportConflictDialog
+      v-if="duplicateNames.length > 0"
+      :duplicates="duplicateNames"
+      @replace="resolveConflict('replace')"
+      @keep="resolveConflict('keep')"
+      @cancel="resolveConflict('cancel')"
+    />
+
+    <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>
+
+    <UploadDropzone v-if="!hasDesigns" @files="handleFiles" />
+
+    <template v-else>
+      <WorkspaceToolbar
+        :lesson-count="book.designs.length"
+        :warning-count="warningCount"
+        :save-status="saveStatus"
+        @upload="triggerUpload"
+        @print="handlePrint"
+        @export="handleExport"
+        @clear="handleClear"
+      />
+      <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" />
+  </div>
 </template>
--- a/src/assets/hero.png
+++ b/src/assets/hero.png
--- a/src/assets/vite.svg
+++ b/src/assets/vite.svg
--- a/src/assets/vue.svg
+++ b/src/assets/vue.svg
@@ -1 +0,0 @@
-<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" aria-hidden="true" role="img" class="iconify iconify--logos" width="37.07" height="36" preserveAspectRatio="xMidYMid meet" viewBox="0 0 256 198"><path fill="#41B883" d="M204.8 0H256L128 220.8L0 0h97.92L128 51.2L157.44 0h47.36Z"></path><path fill="#41B883" d="m0 0l128 220.8L256 0h-51.2L128 132.48L50.56 0H0Z"></path><path fill="#35495E" d="M50.56 0L128 133.12L204.8 0h-47.36L128 51.2L97.92 0H50.56Z"></path></svg>
--- a/src/components/A4Workspace.vue
+++ b/src/components/A4Workspace.vue
@@ -0,0 +1,37 @@
+<script setup lang="ts">
+import type { BookCover, TeachingDesign } from '../domain/teachingDesign'
+import CoverPage from './CoverPage.vue'
+import TeachingDesignPage from './TeachingDesignPage.vue'
+
+defineProps<{
+  cover: BookCover
+  selectedId: string
+  selectedDesign: TeachingDesign | null
+}>()
+
+const emit = defineEmits<{
+  'update:cover': [patch: Partial<BookCover>]
+  'update:design': [design: TeachingDesign]
+}>()
+</script>
+
+<template>
+  <div class="a4-workspace">
+    <div class="a4-paper">
+      <CoverPage
+        v-if="selectedId === 'cover'"
+        :course-name="cover.courseName"
+        :teacher-name="cover.teacherName"
+        :editable="true"
+        @update:course-name="emit('update:cover', { courseName: $event })"
+        @update:teacher-name="emit('update:cover', { teacherName: $event })"
+      />
+      <TeachingDesignPage
+        v-else-if="selectedDesign"
+        :design="selectedDesign"
+        :editable="true"
+        @update:design="emit('update:design', $event)"
+      />
+    </div>
+  </div>
+</template>
--- a/src/components/CoverPage.vue
+++ b/src/components/CoverPage.vue
@@ -0,0 +1,40 @@
+<script setup lang="ts">
+import EditableText from './EditableText.vue'
+
+defineProps<{
+  courseName: string
+  teacherName: string
+  editable: boolean
+}>()
+
+defineEmits<{
+  'update:courseName': [value: string]
+  'update:teacherName': [value: string]
+}>()
+</script>
+
+<template>
+  <section class="page cover-page">
+    <h1 class="cover-title">教学设计</h1>
+    <div class="cover-field">
+      <span class="cover-field-label">课程名称</span>
+      <EditableText
+        class="cover-field-value"
+        :model-value="courseName"
+        label="课程名称"
+        :editable="editable"
+        @update:model-value="$emit('update:courseName', $event)"
+      />
+    </div>
+    <div class="cover-field">
+      <span class="cover-field-label">教师姓名</span>
+      <EditableText
+        class="cover-field-value"
+        :model-value="teacherName"
+        label="教师姓名"
+        :editable="editable"
+        @update:model-value="$emit('update:teacherName', $event)"
+      />
+    </div>
+  </section>
+</template>
--- a/src/components/EditableMarkdown.test.ts
+++ b/src/components/EditableMarkdown.test.ts
@@ -0,0 +1,15 @@
+import { mount } from '@vue/test-utils'
+import { describe, expect, it } from 'vitest'
+import EditableMarkdown from './EditableMarkdown.vue'
+
+describe('EditableMarkdown', () => {
+  it('renders markdown when blurred and edits raw markdown when activated', async () => {
+    const wrapper = mount(EditableMarkdown, {
+      props: { modelValue: '**重点**内容', label: '教师活动' },
+    })
+
+    expect(wrapper.get('.markdown-preview strong').text()).toBe('重点')
+    await wrapper.get('.markdown-preview').trigger('click')
+    expect(wrapper.get('textarea').element.value).toBe('**重点**内容')
+  })
+})
--- a/src/components/EditableMarkdown.vue
+++ b/src/components/EditableMarkdown.vue
@@ -0,0 +1,79 @@
+<script setup lang="ts">
+import { nextTick, ref, watch } from 'vue'
+import { renderMarkdown } from '../services/markdownRenderer'
+
+const props = withDefaults(
+  defineProps<{
+    modelValue: string
+    label: string
+    editable?: boolean
+  }>(),
+  { editable: true },
+)
+
+const emit = defineEmits<{
+  'update:modelValue': [value: string]
+}>()
+
+const editing = ref(false)
+const textareaRef = ref<HTMLTextAreaElement | null>(null)
+
+function resize(): void {
+  const element = textareaRef.value
+  if (!element) return
+  element.style.height = 'auto'
+  element.style.height = `${element.scrollHeight}px`
+}
+
+function activate(): void {
+  if (!props.editable) return
+  editing.value = true
+  nextTick(() => {
+    textareaRef.value?.focus()
+    resize()
+  })
+}
+
+function deactivate(): void {
+  editing.value = false
+}
+
+function onInput(event: Event): void {
+  emit('update:modelValue', (event.target as HTMLTextAreaElement).value)
+  resize()
+}
+
+watch(
+  () => props.modelValue,
+  () => {
+    if (editing.value) nextTick(resize)
+  },
+)
+</script>
+
+<template>
+  <div class="editable-field editable-markdown">
+    <div
+      v-if="!editing"
+      class="markdown-preview"
+      :class="{ 'markdown-preview--empty': !modelValue }"
+      :tabindex="editable ? 0 : undefined"
+      :role="editable ? 'button' : undefined"
+      :aria-label="label"
+      @click="activate"
+      @keydown.enter.prevent="activate"
+      @keydown.space.prevent="activate"
+      v-html="modelValue ? renderMarkdown(modelValue) : '&nbsp;'"
+    ></div>
+    <textarea
+      v-else
+      ref="textareaRef"
+      class="markdown-source"
+      :aria-label="label"
+      :value="modelValue"
+      rows="1"
+      @input="onInput"
+      @blur="deactivate"
+    ></textarea>
+  </div>
+</template>
--- a/src/components/EditableText.test.ts
+++ b/src/components/EditableText.test.ts
@@ -0,0 +1,16 @@
+import { mount } from '@vue/test-utils'
+import { describe, expect, it } from 'vitest'
+import EditableText from './EditableText.vue'
+
+describe('EditableText', () => {
+  it('emits updates while keeping an accessible label', async () => {
+    const wrapper = mount(EditableText, {
+      props: { modelValue: '旧内容', label: '课题' },
+    })
+
+    await wrapper.get('textarea').setValue('新内容')
+
+    expect(wrapper.emitted('update:modelValue')?.[0]).toEqual(['新内容'])
+    expect(wrapper.get('textarea').attributes('aria-label')).toBe('课题')
+  })
+})
--- a/src/components/EditableText.vue
+++ b/src/components/EditableText.vue
@@ -0,0 +1,59 @@
+<script setup lang="ts">
+import { nextTick, onMounted, ref, watch } from 'vue'
+
+const props = withDefaults(
+  defineProps<{
+    modelValue: string
+    label: string
+    multiline?: boolean
+    editable?: boolean
+  }>(),
+  { editable: true },
+)
+
+const emit = defineEmits<{
+  'update:modelValue': [value: string]
+}>()
+
+const textareaRef = ref<HTMLTextAreaElement | null>(null)
+
+function resize(): void {
+  const element = textareaRef.value
+  if (!element) return
+  element.style.height = 'auto'
+  element.style.height = `${element.scrollHeight}px`
+}
+
+function onInput(event: Event): void {
+  const value = (event.target as HTMLTextAreaElement).value
+  emit('update:modelValue', value)
+  resize()
+}
+
+watch(
+  () => props.modelValue,
+  () => nextTick(resize),
+)
+
+onMounted(resize)
+</script>
+
+<template>
+  <textarea
+    v-if="editable"
+    ref="textareaRef"
+    class="editable-field editable-text"
+    :class="{ 'editable-text--multiline': multiline }"
+    :aria-label="label"
+    :value="modelValue"
+    rows="1"
+    @input="onInput"
+  ></textarea>
+  <span
+    v-else
+    class="editable-field editable-text editable-text--static"
+    :class="{ 'editable-text--multiline': multiline }"
+    :aria-label="label"
+    >{{ modelValue }}</span
+  >
+</template>
--- a/src/components/HelloWorld.vue
+++ b/src/components/HelloWorld.vue
@@ -1,95 +0,0 @@
-<script setup lang="ts">
-import { ref } from 'vue'
-import viteLogo from '../assets/vite.svg'
-import heroImg from '../assets/hero.png'
-import vueLogo from '../assets/vue.svg'
-
-const count = ref(0)
-</script>
-
-<template>
-  <section id="center">
-    <div class="hero">
-      <img :src="heroImg" class="base" width="170" height="179" alt="" />
-      <img :src="vueLogo" class="framework" alt="Vue logo" />
-      <img :src="viteLogo" class="vite" alt="Vite logo" />
-    </div>
-    <div>
-      <h1>Get started</h1>
-      <p>Edit <code>src/App.vue</code> and save to test <code>HMR</code></p>
-    </div>
-    <button type="button" class="counter" @click="count++">
-      Count is {{ count }}
-    </button>
-  </section>
-
-  <div class="ticks"></div>
-
-  <section id="next-steps">
-    <div id="docs">
-      <svg class="icon" role="presentation" aria-hidden="true">
-        <use href="/icons.svg#documentation-icon"></use>
-      </svg>
-      <h2>Documentation</h2>
-      <p>Your questions, answered</p>
-      <ul>
-        <li>
-          <a href="https://vite.dev/" target="_blank">
-            <img class="logo" :src="viteLogo" alt="" />
-            Explore Vite
-          </a>
-        </li>
-        <li>
-          <a href="https://vuejs.org/" target="_blank">
-            <img class="button-icon" :src="vueLogo" alt="" />
-            Learn more
-          </a>
-        </li>
-      </ul>
-    </div>
-    <div id="social">
-      <svg class="icon" role="presentation" aria-hidden="true">
-        <use href="/icons.svg#social-icon"></use>
-      </svg>
-      <h2>Connect with us</h2>
-      <p>Join the Vite community</p>
-      <ul>
-        <li>
-          <a href="https://github.com/vitejs/vite" target="_blank">
-            <svg class="button-icon" role="presentation" aria-hidden="true">
-              <use href="/icons.svg#github-icon"></use>
-            </svg>
-            GitHub
-          </a>
-        </li>
-        <li>
-          <a href="https://chat.vite.dev/" target="_blank">
-            <svg class="button-icon" role="presentation" aria-hidden="true">
-              <use href="/icons.svg#discord-icon"></use>
-            </svg>
-            Discord
-          </a>
-        </li>
-        <li>
-          <a href="https://x.com/vite_js" target="_blank">
-            <svg class="button-icon" role="presentation" aria-hidden="true">
-              <use href="/icons.svg#x-icon"></use>
-            </svg>
-            X.com
-          </a>
-        </li>
-        <li>
-          <a href="https://bsky.app/profile/vite.dev" target="_blank">
-            <svg class="button-icon" role="presentation" aria-hidden="true">
-              <use href="/icons.svg#bluesky-icon"></use>
-            </svg>
-            Bluesky
-          </a>
-        </li>
-      </ul>
-    </div>
-  </section>
-
-  <div class="ticks"></div>
-  <section id="spacer"></section>
-</template>
--- a/src/components/ImportConflictDialog.vue
+++ b/src/components/ImportConflictDialog.vue
@@ -0,0 +1,29 @@
+<script setup lang="ts">
+defineProps<{
+  duplicates: string[]
+}>()
+
+defineEmits<{
+  replace: []
+  keep: []
+  cancel: []
+}>()
+</script>
+
+<template>
+  <div class="dialog-overlay" role="dialog" aria-modal="true" aria-labelledby="import-conflict-title">
+    <div class="dialog">
+      <h2 id="import-conflict-title">发现重名教案</h2>
+      <p>以下文件名与当前书本中的教案重复：</p>
+      <ul class="dialog-filenames">
+        <li v-for="filename in duplicates" :key="filename">{{ filename }}</li>
+      </ul>
+      <p>「替换」会用新文件覆盖原位置上的教案；「保留两者」会将新文件作为新的一课追加导入。</p>
+      <div class="dialog-actions">
+        <button type="button" @click="$emit('replace')">替换</button>
+        <button type="button" @click="$emit('keep')">保留两者</button>
+        <button type="button" @click="$emit('cancel')">取消</button>
+      </div>
+    </div>
+  </div>
+</template>
--- a/src/components/LessonSidebar.test.ts
+++ b/src/components/LessonSidebar.test.ts
@@ -0,0 +1,18 @@
+import { mount } from '@vue/test-utils'
+import { describe, expect, it } from 'vitest'
+import { createEmptyTeachingDesign } from '../domain/teachingDesign'
+import LessonSidebar from './LessonSidebar.vue'
+
+describe('LessonSidebar', () => {
+  it('emits a move when one lesson is dropped on another', async () => {
+    const designs = [createEmptyTeachingDesign('1.md'), createEmptyTeachingDesign('2.md')]
+    const wrapper = mount(LessonSidebar, {
+      props: { designs, selectedId: designs[0]?.id ?? 'cover' },
+    })
+
+    await wrapper.get('[data-index="0"]').trigger('dragstart')
+    await wrapper.get('[data-index="1"]').trigger('drop')
+
+    expect(wrapper.emitted('move')?.[0]).toEqual([0, 1])
+  })
+})
--- a/src/components/LessonSidebar.vue
+++ b/src/components/LessonSidebar.vue
@@ -0,0 +1,75 @@
+<script setup lang="ts">
+import { ref } from 'vue'
+import type { DesignId, TeachingDesign } from '../domain/teachingDesign'
+
+defineProps<{
+  designs: TeachingDesign[]
+  selectedId: 'cover' | DesignId
+}>()
+
+const emit = defineEmits<{
+  select: [id: 'cover' | DesignId]
+  remove: [id: DesignId]
+  move: [from: number, to: number]
+}>()
+
+const dragSourceIndex = ref<number | null>(null)
+
+function onDragStart(index: number): void {
+  dragSourceIndex.value = index
+}
+
+function onDrop(targetIndex: number): void {
+  if (dragSourceIndex.value !== null && dragSourceIndex.value !== targetIndex) {
+    emit('move', dragSourceIndex.value, targetIndex)
+  }
+  dragSourceIndex.value = null
+}
+</script>
+
+<template>
+  <nav class="lesson-sidebar" aria-label="教案目录">
+    <button
+      type="button"
+      class="lesson-sidebar-item lesson-sidebar-cover"
+      :class="{ 'lesson-sidebar-item--active': selectedId === 'cover' }"
+      @click="emit('select', 'cover')"
+    >
+      封面
+    </button>
+
+    <ul class="lesson-sidebar-list">
+      <li
+        v-for="(design, index) in designs"
+        :key="design.id"
+        class="lesson-sidebar-item"
+        :class="{ 'lesson-sidebar-item--active': selectedId === design.id }"
+        :data-index="index"
+        draggable="true"
+        @dragstart="onDragStart(index)"
+        @dragover.prevent
+        @drop="onDrop(index)"
+      >
+        <button
+          type="button"
+          class="lesson-sidebar-select"
+          @click="emit('select', design.id)"
+        >
+          <span class="lesson-sidebar-number">{{ index + 1 }}</span>
+          <span class="lesson-sidebar-topic">{{ design.topic || design.originalFilename }}</span>
+          <span v-if="design.warnings.length" class="lesson-sidebar-badge">
+            {{ design.warnings.length }}
+          </span>
+        </button>
+        <button
+          type="button"
+          class="lesson-sidebar-remove"
+          aria-label="删除教案"
+          @click="emit('remove', design.id)"
+        >
+          ×
+        </button>
+      </li>
+    </ul>
+  </nav>
+</template>
--- a/src/components/PrintBook.test.ts
+++ b/src/components/PrintBook.test.ts
@@ -0,0 +1,23 @@
+import { mount } from '@vue/test-utils'
+import { describe, expect, it } from 'vitest'
+import { createEmptyTeachingDesign } from '../domain/teachingDesign'
+import PrintBook from './PrintBook.vue'
+
+describe('PrintBook', () => {
+  it('renders one cover and every lesson in current order', () => {
+    const first = createEmptyTeachingDesign('2.md')
+    first.topic = '第二课'
+    const second = createEmptyTeachingDesign('1.md')
+    second.topic = '第一课'
+
+    const wrapper = mount(PrintBook, {
+      props: {
+        cover: { courseName: 'Web 前端开发', teacherName: '张老师' },
+        designs: [first, second],
+      },
+    })
+
+    expect(wrapper.findAll('.print-section')).toHaveLength(3)
+    expect(wrapper.text().indexOf('第二课')).toBeLessThan(wrapper.text().indexOf('第一课'))
+  })
+})
--- a/src/components/PrintBook.vue
+++ b/src/components/PrintBook.vue
@@ -0,0 +1,25 @@
+<script setup lang="ts">
+import type { BookCover, TeachingDesign } from '../domain/teachingDesign'
+import CoverPage from './CoverPage.vue'
+import TeachingDesignPage from './TeachingDesignPage.vue'
+
+defineProps<{
+  cover: BookCover
+  designs: TeachingDesign[]
+}>()
+</script>
+
+<template>
+  <div class="print-book">
+    <div class="print-section">
+      <CoverPage
+        :course-name="cover.courseName"
+        :teacher-name="cover.teacherName"
+        :editable="false"
+      />
+    </div>
+    <div v-for="design in designs" :key="design.id" class="print-section">
+      <TeachingDesignPage :design="design" :editable="false" />
+    </div>
+  </div>
+</template>
--- a/src/components/RestoreDraftDialog.vue
+++ b/src/components/RestoreDraftDialog.vue
@@ -0,0 +1,24 @@
+<script setup lang="ts">
+defineProps<{
+  updatedAt: string
+}>()
+
+defineEmits<{
+  restore: []
+  discard: []
+}>()
+</script>
+
+<template>
+  <div class="dialog-overlay" role="dialog" aria-modal="true" aria-labelledby="restore-draft-title">
+    <div class="dialog">
+      <h2 id="restore-draft-title">发现未保存的草稿</h2>
+      <p>检测到本地保存的教案，最近更新时间：{{ updatedAt }}</p>
+      <p>是否恢复上次编辑的内容？</p>
+      <div class="dialog-actions">
+        <button type="button" @click="$emit('restore')">恢复</button>
+        <button type="button" @click="$emit('discard')">放弃</button>
+      </div>
+    </div>
+  </div>
+</template>
--- a/src/components/TeachingDesignPage.test.ts
+++ b/src/components/TeachingDesignPage.test.ts
@@ -0,0 +1,18 @@
+import { mount } from '@vue/test-utils'
+import { describe, expect, it } from 'vitest'
+import { createEmptyTeachingDesign, type TeachingDesign } from '../domain/teachingDesign'
+import TeachingDesignPage from './TeachingDesignPage.vue'
+
+describe('TeachingDesignPage', () => {
+  it('adds and removes teaching process rows', async () => {
+    const design = createEmptyTeachingDesign('1.md')
+    const wrapper = mount(TeachingDesignPage, {
+      props: { design, editable: true },
+    })
+
+    await wrapper.get('[data-testid="add-step"]').trigger('click')
+    expect(
+      wrapper.emitted<TeachingDesign[]>('update:design')?.at(-1)?.[0]?.processSteps,
+    ).toHaveLength(2)
+  })
+})
--- a/src/components/TeachingDesignPage.vue
+++ b/src/components/TeachingDesignPage.vue
@@ -0,0 +1,286 @@
+<script setup lang="ts">
+import { computed, toRaw } from 'vue'
+import { createTeachingStep, type TeachingDesign, type TeachingStep } from '../domain/teachingDesign'
+import EditableMarkdown from './EditableMarkdown.vue'
+import EditableText from './EditableText.vue'
+
+const props = defineProps<{
+  design: TeachingDesign
+  editable: boolean
+}>()
+
+const emit = defineEmits<{ 'update:design': [design: TeachingDesign] }>()
+
+function update(mutator: (design: TeachingDesign) => void): void {
+  const clone = JSON.parse(JSON.stringify(toRaw(props.design))) as TeachingDesign
+  mutator(clone)
+  emit('update:design', clone)
+}
+
+const displayTitle = computed(
+  () => props.design.title || `${props.design.topic} 教学设计`,
+)
+
+function setField<K extends keyof TeachingDesign>(field: K, value: TeachingDesign[K]): void {
+  update((design) => {
+    design[field] = value
+  })
+}
+
+function setStepField<K extends keyof TeachingStep>(
+  index: number,
+  field: K,
+  value: TeachingStep[K],
+): void {
+  update((design) => {
+    const step = design.processSteps[index]
+    if (step) step[field] = value
+  })
+}
+
+function addStep(): void {
+  update((design) => {
+    design.processSteps.push(createTeachingStep(design.processSteps.length + 1))
+  })
+}
+
+function removeStep(index: number): void {
+  update((design) => {
+    design.processSteps.splice(index, 1)
+  })
+}
+</script>
+
+<template>
+  <section class="page teaching-design-page">
+    <EditableText
+      class="design-title"
+      :model-value="displayTitle"
+      label="教案标题"
+      :editable="editable"
+      @update:model-value="setField('title', $event)"
+    />
+
+    <table class="basic-info-table">
+      <tbody>
+        <tr>
+          <th>课题</th>
+          <td>
+            <EditableText
+              :model-value="design.topic"
+              label="课题"
+              :editable="editable"
+              @update:model-value="setField('topic', $event)"
+            />
+          </td>
+        </tr>
+        <tr>
+          <th>课时</th>
+          <td>
+            <EditableText
+              :model-value="design.duration"
+              label="课时"
+              :editable="editable"
+              @update:model-value="setField('duration', $event)"
+            />
+          </td>
+        </tr>
+        <tr>
+          <th>教学目标</th>
+          <td class="objectives-cell">
+            <div class="objective-row">
+              <span class="objective-label">知识目标</span>
+              <EditableMarkdown
+                :model-value="design.knowledgeObjective"
+                label="知识目标"
+                :editable="editable"
+                @update:model-value="setField('knowledgeObjective', $event)"
+              />
+            </div>
+            <div class="objective-row">
+              <span class="objective-label">技能目标</span>
+              <EditableMarkdown
+                :model-value="design.skillObjective"
+                label="技能目标"
+                :editable="editable"
+                @update:model-value="setField('skillObjective', $event)"
+              />
+            </div>
+            <div class="objective-row">
+              <span class="objective-label">素养目标</span>
+              <EditableMarkdown
+                :model-value="design.literacyObjective"
+                label="素养目标"
+                :editable="editable"
+                @update:model-value="setField('literacyObjective', $event)"
+              />
+            </div>
+          </td>
+        </tr>
+        <tr>
+          <th>教学重难点</th>
+          <td class="objectives-cell">
+            <div class="objective-row">
+              <span class="objective-label">重点</span>
+              <EditableMarkdown
+                :model-value="design.keyPoint"
+                label="教学重点"
+                :editable="editable"
+                @update:model-value="setField('keyPoint', $event)"
+              />
+            </div>
+            <div class="objective-row">
+              <span class="objective-label">难点</span>
+              <EditableMarkdown
+                :model-value="design.difficultPoint"
+                label="教学难点"
+                :editable="editable"
+                @update:model-value="setField('difficultPoint', $event)"
+              />
+            </div>
+          </td>
+        </tr>
+        <tr>
+          <th>教学资源准备</th>
+          <td>
+            <EditableMarkdown
+              :model-value="design.resources"
+              label="教学资源准备"
+              :editable="editable"
+              @update:model-value="setField('resources', $event)"
+            />
+          </td>
+        </tr>
+      </tbody>
+    </table>
+
+    <h2 class="section-heading">教学过程</h2>
+    <table class="process-table">
+      <thead>
+        <tr>
+          <th>教学环节</th>
+          <th>教学内容</th>
+          <th>教师活动</th>
+          <th>学生活动</th>
+          <th>设计意图</th>
+          <th v-if="editable" class="no-print"></th>
+        </tr>
+      </thead>
+      <tbody>
+        <tr v-for="(step, index) in design.processSteps" :key="step.id">
+          <td class="process-step-name">
+            <EditableText
+              :model-value="step.name"
+              label="教学环节名称"
+              :editable="editable"
+              @update:model-value="setStepField(index, 'name', $event)"
+            />
+            <EditableText
+              :model-value="step.duration"
+              label="教学环节时长"
+              :editable="editable"
+              @update:model-value="setStepField(index, 'duration', $event)"
+            />
+          </td>
+          <td>
+            <EditableMarkdown
+              :model-value="step.content"
+              label="教学内容"
+              :editable="editable"
+              @update:model-value="setStepField(index, 'content', $event)"
+            />
+          </td>
+          <td>
+            <EditableMarkdown
+              :model-value="step.teacherActivity"
+              label="教师活动"
+              :editable="editable"
+              @update:model-value="setStepField(index, 'teacherActivity', $event)"
+            />
+          </td>
+          <td>
+            <EditableMarkdown
+              :model-value="step.studentActivity"
+              label="学生活动"
+              :editable="editable"
+              @update:model-value="setStepField(index, 'studentActivity', $event)"
+            />
+          </td>
+          <td>
+            <EditableMarkdown
+              :model-value="step.intention"
+              label="设计意图"
+              :editable="editable"
+              @update:model-value="setStepField(index, 'intention', $event)"
+            />
+          </td>
+          <td v-if="editable" class="no-print process-step-actions">
+            <button
+              type="button"
+              :data-testid="`remove-step-${index}`"
+              :disabled="design.processSteps.length <= 1"
+              @click="removeStep(index)"
+            >
+              删除环节
+            </button>
+          </td>
+        </tr>
+      </tbody>
+    </table>
+    <button v-if="editable" type="button" class="no-print" data-testid="add-step" @click="addStep">
+      添加教学环节
+    </button>
+
+    <h2 class="section-heading">板书设计</h2>
+    <EditableText
+      class="board-design"
+      :model-value="design.boardDesign"
+      label="板书设计"
+      multiline
+      :editable="editable"
+      @update:model-value="setField('boardDesign', $event)"
+    />
+
+    <h2 class="section-heading">教学成效与反思</h2>
+    <table class="reflection-table">
+      <tbody>
+        <tr>
+          <th>教学成效</th>
+          <td>
+            <EditableMarkdown
+              :model-value="design.effectiveness"
+              label="教学成效"
+              :editable="editable"
+              @update:model-value="setField('effectiveness', $event)"
+            />
+          </td>
+        </tr>
+        <tr>
+          <th>教学反思</th>
+          <td>
+            <EditableMarkdown
+              :model-value="design.reflection"
+              label="教学反思"
+              :editable="editable"
+              @update:model-value="setField('reflection', $event)"
+            />
+          </td>
+        </tr>
+      </tbody>
+    </table>
+
+    <template v-if="design.additionalContent || editable">
+      <h2 class="section-heading">附加内容</h2>
+      <EditableMarkdown
+        :model-value="design.additionalContent"
+        label="附加内容"
+        :editable="editable"
+        @update:model-value="setField('additionalContent', $event)"
+      />
+    </template>
+
+    <ul v-if="design.warnings.length" class="warning-summary no-print">
+      <li v-for="warning in design.warnings" :key="warning.code">{{ warning.message }}</li>
+    </ul>
+  </section>
+</template>
--- a/src/components/UploadDropzone.test.ts
+++ b/src/components/UploadDropzone.test.ts
@@ -0,0 +1,16 @@
+import { mount } from '@vue/test-utils'
+import { describe, expect, it } from 'vitest'
+import UploadDropzone from './UploadDropzone.vue'
+
+describe('UploadDropzone', () => {
+  it('emits every selected file', async () => {
+    const wrapper = mount(UploadDropzone)
+    const files = [new File(['# one'], '1.md'), new File(['# two'], '2.md')]
+    const input = wrapper.get('input[type="file"]')
+
+    Object.defineProperty(input.element, 'files', { value: files })
+    await input.trigger('change')
+
+    expect(wrapper.emitted('files')?.[0]?.[0]).toEqual(files)
+  })
+})
--- a/src/components/UploadDropzone.vue
+++ b/src/components/UploadDropzone.vue
@@ -0,0 +1,77 @@
+<script setup lang="ts">
+import { ref } from 'vue'
+
+withDefaults(defineProps<{ compact?: boolean }>(), {
+  compact: false,
+})
+
+const emit = defineEmits<{ files: [files: File[]] }>()
+
+const inputRef = ref<HTMLInputElement | null>(null)
+const isDragOver = ref(false)
+
+function openPicker(): void {
+  inputRef.value?.click()
+}
+
+function onChange(event: Event): void {
+  const input = event.target as HTMLInputElement
+  if (input.files) {
+    emit('files', Array.from(input.files))
+  }
+  input.value = ''
+}
+
+function onDrop(event: DragEvent): void {
+  isDragOver.value = false
+  const files = event.dataTransfer?.files
+  if (files) {
+    emit('files', Array.from(files))
+  }
+}
+
+function onDragOver(): void {
+  isDragOver.value = true
+}
+
+function onDragLeave(): void {
+  isDragOver.value = false
+}
+
+defineExpose({ openPicker })
+</script>
+
+<template>
+  <div
+    class="upload-dropzone"
+    :class="{
+      'upload-dropzone--compact': compact,
+      'upload-dropzone--drag-over': isDragOver,
+    }"
+    role="button"
+    tabindex="0"
+    @click="openPicker"
+    @keydown.enter.prevent="openPicker"
+    @keydown.space.prevent="openPicker"
+    @dragover.prevent="onDragOver"
+    @dragleave.prevent="onDragLeave"
+    @drop.prevent="onDrop"
+  >
+    <input
+      ref="inputRef"
+      type="file"
+      multiple
+      accept=".md,text/markdown,text/plain"
+      class="upload-dropzone-input"
+      @change="onChange"
+      @click.stop
+    />
+    <template v-if="compact">
+      <span class="upload-dropzone-label">导入教学设计</span>
+    </template>
+    <template v-else>
+      <p class="upload-dropzone-title">点击或拖拽上传 Markdown 教学设计文件</p>
+      <p class="upload-dropzone-hint">支持批量导入多个 .md 文件</p>
+    </template>
+  </div>
+</template>
--- a/src/components/WorkspaceToolbar.vue
+++ b/src/components/WorkspaceToolbar.vue
@@ -0,0 +1,40 @@
+<script setup lang="ts">
+import type { SaveStatus } from '../composables/useTeachingBook'
+
+const props = defineProps<{
+  lessonCount: number
+  warningCount: number
+  saveStatus: SaveStatus
+}>()
+
+defineEmits<{
+  upload: []
+  print: []
+  export: []
+  clear: []
+}>()
+
+const saveStatusLabel: Record<SaveStatus, string> = {
+  idle: '',
+  saving: '保存中…',
+  saved: '已保存到本地',
+  error: '保存失败',
+}
+</script>
+
+<template>
+  <header class="workspace-toolbar">
+    <button type="button" @click="$emit('upload')">导入教案</button>
+    <button type="button" :disabled="lessonCount === 0" @click="$emit('print')">打印整册</button>
+    <button type="button" :disabled="lessonCount === 0" @click="$emit('export')">导出 Markdown</button>
+    <button type="button" :disabled="lessonCount === 0" @click="$emit('clear')">清空</button>
+
+    <span class="workspace-toolbar-count">共 {{ lessonCount }} 课</span>
+    <span v-if="warningCount > 0" class="workspace-toolbar-warning">
+      {{ warningCount }} 处提示
+    </span>
+    <span class="workspace-toolbar-status" :class="`workspace-toolbar-status--${saveStatus}`">
+      {{ saveStatusLabel[props.saveStatus] }}
+    </span>
+  </header>
+</template>
--- a/src/composables/useTeachingBook.test.ts
+++ b/src/composables/useTeachingBook.test.ts
@@ -0,0 +1,38 @@
+import { beforeEach, describe, expect, it, vi } from 'vitest'
+import { useTeachingBook } from './useTeachingBook'
+
+describe('useTeachingBook', () => {
+  beforeEach(() => {
+    localStorage.clear()
+    vi.useFakeTimers()
+  })
+
+  it('imports files in natural order and selects the first lesson', async () => {
+    const store = useTeachingBook()
+    const files = [
+      new File(['# 第十课 教学设计'], '10.md', { type: 'text/markdown' }),
+      new File(['# 第二课 教学设计'], '2.md', { type: 'text/markdown' }),
+    ]
+
+    await store.importFiles(files, 'keep')
+
+    expect(store.book.value.designs.map((design) => design.originalFilename)).toEqual([
+      '2.md',
+      '10.md',
+    ])
+    expect(store.book.value.selectedId).toBe(store.book.value.designs[0]?.id)
+  })
+
+  it('reorders lessons without changing their identities', async () => {
+    const store = useTeachingBook()
+    await store.importFiles([
+      new File(['# One 教学设计'], '1.md'),
+      new File(['# Two 教学设计'], '2.md'),
+    ], 'keep')
+
+    const ids = store.book.value.designs.map((design) => design.id)
+    store.moveDesign(0, 1)
+
+    expect(store.book.value.designs.map((design) => design.id)).toEqual(ids.reverse())
+  })
+})
--- a/src/composables/useTeachingBook.ts
+++ b/src/composables/useTeachingBook.ts
@@ -0,0 +1,226 @@
+import { ref, watch, type Ref } from 'vue'
+import {
+  createEmptyBook,
+  type BookCover,
+  type DesignId,
+  type TeachingBook,
+  type TeachingDesign,
+} from '../domain/teachingDesign'
+import { saveBook } from '../services/bookStorage'
+import { parseTeachingDesign } from '../services/markdownParser'
+import { sortFilesNaturally } from '../services/naturalSort'
+
+const AUTOSAVE_DELAY_MS = 300
+
+export type DuplicateStrategy = 'replace' | 'keep'
+
+export type SaveStatus = 'idle' | 'saving' | 'saved' | 'error'
+
+export interface ImportResult {
+  imported: number
+  failed: Array<{ filename: string; message: string }>
+  duplicates: string[]
+}
+
+export interface TeachingBookStore {
+  book: Ref<TeachingBook>
+  saveStatus: Ref<SaveStatus>
+  lastError: Ref<string | null>
+  pendingDuplicateFiles: Ref<File[]>
+  selectedDesign: Ref<TeachingDesign | null>
+  hasDesigns: Ref<boolean>
+  warningCount: Ref<number>
+  importFiles: (files: readonly File[], strategy: DuplicateStrategy) => Promise<ImportResult>
+  detectDuplicates: (files: readonly File[]) => string[]
+  selectPage: (id: 'cover' | DesignId) => void
+  moveDesign: (from: number, to: number) => void
+  removeDesign: (id: DesignId) => void
+  updateCover: (patch: Partial<BookCover>) => void
+  updateDesign: (id: DesignId, updater: (design: TeachingDesign) => void) => void
+  restore: (book: TeachingBook) => void
+  clearBook: () => void
+}
+
+export function useTeachingBook(): TeachingBookStore {
+  const book = ref<TeachingBook>(createEmptyBook()) as Ref<TeachingBook>
+  const saveStatus = ref<SaveStatus>('idle')
+  const lastError = ref<string | null>(null)
+  const pendingDuplicateFiles = ref<File[]>([])
+
+  const selectedDesign = ref<TeachingDesign | null>(null)
+  const hasDesigns = ref(false)
+  const warningCount = ref(0)
+
+  function syncDerived(): void {
+    const current = book.value
+    hasDesigns.value = current.designs.length > 0
+    selectedDesign.value =
+      current.selectedId === 'cover'
+        ? null
+        : current.designs.find((design) => design.id === current.selectedId) ?? null
+    warningCount.value = current.designs.reduce(
+      (total, design) => total + design.warnings.length,
+      0,
+    )
+  }
+
+  syncDerived()
+
+  let autosaveTimer: ReturnType<typeof setTimeout> | undefined
+
+  function touch(): void {
+    book.value.updatedAt = new Date().toISOString()
+  }
+
+  watch(
+    book,
+    () => {
+      syncDerived()
+
+      if (autosaveTimer !== undefined) {
+        clearTimeout(autosaveTimer)
+      }
+
+      autosaveTimer = setTimeout(() => {
+        saveStatus.value = 'saving'
+        const result = saveBook(book.value)
+        if (result.ok) {
+          saveStatus.value = 'saved'
+          lastError.value = null
+        } else {
+          saveStatus.value = 'error'
+          lastError.value = result.message
+        }
+      }, AUTOSAVE_DELAY_MS)
+    },
+    { deep: true },
+  )
+
+  function detectDuplicates(files: readonly File[]): string[] {
+    const existingNames = new Set(book.value.designs.map((design) => design.originalFilename))
+    return files.map((file) => file.name).filter((name) => existingNames.has(name))
+  }
+
+  async function importFiles(
+    files: readonly File[],
+    strategy: DuplicateStrategy,
+  ): Promise<ImportResult> {
+    const markdownFiles = files.filter((file) => /\.md$/i.test(file.name))
+    const failed: ImportResult['failed'] = files
+      .filter((file) => !/\.md$/i.test(file.name))
+      .map((file) => ({ filename: file.name, message: '仅支持 .md 文件。' }))
+
+    const sortedFiles = sortFilesNaturally([...markdownFiles])
+    const duplicates: string[] = []
+    let imported = 0
+
+    for (const file of sortedFiles) {
+      try {
+        const text = await file.text()
+        const design = parseTeachingDesign(file.name, text)
+
+        const existingIndex = book.value.designs.findIndex(
+          (existing) => existing.originalFilename === file.name,
+        )
+
+        if (existingIndex !== -1) {
+          duplicates.push(file.name)
+          if (strategy === 'replace') {
+            book.value.designs.splice(existingIndex, 1, design)
+          } else {
+            book.value.designs.push(design)
+          }
+        } else {
+          book.value.designs.push(design)
+        }
+
+        imported++
+      } catch (error) {
+        failed.push({
+          filename: file.name,
+          message: error instanceof Error ? error.message : '解析失败。',
+        })
+      }
+    }
+
+    if (imported > 0 && book.value.selectedId === 'cover' && book.value.designs.length > 0) {
+      book.value.selectedId = book.value.designs[0]!.id
+    }
+
+    if (imported > 0) {
+      touch()
+    }
+
+    return { imported, failed, duplicates }
+  }
+
+  function selectPage(id: 'cover' | DesignId): void {
+    book.value.selectedId = id
+  }
+
+  function moveDesign(from: number, to: number): void {
+    const designs = book.value.designs
+    if (from < 0 || from >= designs.length || to < 0 || to >= designs.length) {
+      return
+    }
+    const [moved] = designs.splice(from, 1)
+    designs.splice(to, 0, moved!)
+    touch()
+  }
+
+  function removeDesign(id: DesignId): void {
+    const designs = book.value.designs
+    const index = designs.findIndex((design) => design.id === id)
+    if (index === -1) {
+      return
+    }
+    designs.splice(index, 1)
+
+    if (book.value.selectedId === id) {
+      book.value.selectedId = designs[index]?.id ?? designs[index - 1]?.id ?? 'cover'
+    }
+
+    touch()
+  }
+
+  function updateCover(patch: Partial<BookCover>): void {
+    Object.assign(book.value.cover, patch)
+    touch()
+  }
+
+  function updateDesign(id: DesignId, updater: (design: TeachingDesign) => void): void {
+    const design = book.value.designs.find((candidate) => candidate.id === id)
+    if (!design) {
+      return
+    }
+    updater(design)
+    touch()
+  }
+
+  function restore(restored: TeachingBook): void {
+    book.value = restored
+  }
+
+  function clearBook(): void {
+    book.value = createEmptyBook()
+  }
+
+  return {
+    book,
+    saveStatus,
+    lastError,
+    pendingDuplicateFiles,
+    selectedDesign,
+    hasDesigns,
+    warningCount,
+    importFiles,
+    detectDuplicates,
+    selectPage,
+    moveDesign,
+    removeDesign,
+    updateCover,
+    updateDesign,
+    restore,
+    clearBook,
+  }
+}
--- a/src/main.ts
+++ b/src/main.ts
@@ -1,5 +1,6 @@
 import { createApp } from 'vue'
 import './style.css'
+import './print.css'
 import App from './App.vue'

 createApp(App).mount('#app')
--- a/src/print.css
+++ b/src/print.css
@@ -0,0 +1,85 @@
+@page {
+  size: A4;
+  margin: 12mm;
+}
+
+.print-book {
+  display: none;
+}
+
+@media print {
+  html,
+  body,
+  #app {
+    margin: 0;
+    padding: 0;
+    background: #fff;
+  }
+
+  .app-shell > *:not(.print-book) {
+    display: none !important;
+  }
+
+  .print-book {
+    display: block;
+  }
+
+  .print-section {
+    break-before: page;
+  }
+
+  .print-section:first-child {
+    break-before: auto;
+  }
+
+  .page {
+    width: auto;
+    min-height: 0;
+    margin: 0;
+    padding: 0;
+    box-shadow: none;
+  }
+
+  .process-table {
+    break-inside: auto;
+  }
+
+  .process-table thead {
+    display: table-header-group;
+  }
+
+  .process-table tr {
+    break-inside: avoid;
+  }
+
+  .section-heading {
+    break-after: avoid;
+  }
+
+  .basic-info-table,
+  .reflection-table,
+  .board-design {
+    break-inside: avoid;
+  }
+
+  .no-print,
+  .warning-summary {
+    display: none !important;
+  }
+
+  .markdown-source {
+    display: none;
+  }
+
+  .editable-text--static,
+  .markdown-preview {
+    border-color: transparent;
+    background: none;
+    white-space: pre-wrap;
+    word-break: break-word;
+  }
+
+  .board-design {
+    word-break: break-word;
+  }
+}
--- a/src/services/bookStorage.test.ts
+++ b/src/services/bookStorage.test.ts
@@ -0,0 +1,26 @@
+import { beforeEach, describe, expect, it } from 'vitest'
+import { createEmptyBook } from '../domain/teachingDesign'
+import { clearStoredBook, loadStoredBook, saveBook } from './bookStorage'
+
+describe('bookStorage', () => {
+  beforeEach(() => localStorage.clear())
+
+  it('round-trips a versioned book', () => {
+    const book = createEmptyBook()
+    book.cover.courseName = 'Web 前端开发'
+
+    expect(saveBook(book)).toEqual({ ok: true })
+    expect(loadStoredBook()?.cover.courseName).toBe('Web 前端开发')
+  })
+
+  it('returns null for malformed storage', () => {
+    localStorage.setItem('teaching-design-book', '{bad json')
+    expect(loadStoredBook()).toBeNull()
+  })
+
+  it('clears saved work', () => {
+    saveBook(createEmptyBook())
+    clearStoredBook()
+    expect(loadStoredBook()).toBeNull()
+  })
+})
--- a/src/services/bookStorage.ts
+++ b/src/services/bookStorage.ts
@@ -0,0 +1,29 @@
+import { BOOK_SCHEMA_VERSION, type TeachingBook } from '../domain/teachingDesign'
+
+const STORAGE_KEY = 'teaching-design-book'
+
+export type SaveResult = { ok: true } | { ok: false; message: string }
+
+export function saveBook(book: TeachingBook): SaveResult {
+  try {
+    localStorage.setItem(STORAGE_KEY, JSON.stringify(book))
+    return { ok: true }
+  } catch {
+    return { ok: false, message: '浏览器存储空间不足，当前修改尚未暂存。' }
+  }
+}
+
+export function loadStoredBook(): TeachingBook | null {
+  try {
+    const raw = localStorage.getItem(STORAGE_KEY)
+    if (!raw) return null
+    const parsed = JSON.parse(raw) as TeachingBook
+    return parsed.schemaVersion === BOOK_SCHEMA_VERSION ? parsed : null
+  } catch {
+    return null
+  }
+}
+
+export function clearStoredBook(): void {
+  localStorage.removeItem(STORAGE_KEY)
+}
--- a/src/services/markdownParser.corpus.test.ts
+++ b/src/services/markdownParser.corpus.test.ts
@@ -0,0 +1,35 @@
+import { readFileSync, readdirSync } from 'node:fs'
+import { resolve } from 'node:path'
+import { describe, expect, it } from 'vitest'
+import { parseTeachingDesign } from './markdownParser'
+
+const fixture = (path: string) => readFileSync(resolve(process.cwd(), path), 'utf8')
+
+describe('teaching-design corpus', () => {
+  it.each([
+    ['data/Web/1.md', '个人主页——项目启动与开发环境搭建'],
+    ['data/Python/1.md', '智能学生选课推荐系统——项目启动与Python开发环境搭建'],
+    ['data/C#/8.md', '智能仓储管理系统——异常处理与调试确保系统稳定运行'],
+    ['data/C#/19.md', '智能教室环境监测系统——数据可视化与历史曲线绘制'],
+  ])('parses %s without losing its topic', (path, topic) => {
+    const design = parseTeachingDesign(path.split('/').at(-1) ?? path, fixture(path))
+    expect(design.topic).toBe(topic)
+    expect(design.processSteps.length).toBeGreaterThan(0)
+  })
+
+  it('imports every numbered corpus file without throwing', () => {
+    const directories = ['data/Web', 'data/Python', 'data/C#']
+    const paths = directories.flatMap((directory) =>
+      readdirSync(resolve(process.cwd(), directory))
+        .filter((name) => /^\d+\.md$/.test(name))
+        .map((name) => `${directory}/${name}`),
+    )
+
+    expect(paths).toHaveLength(55)
+    for (const path of paths) {
+      const design = parseTeachingDesign(path.split('/').at(-1) ?? path, fixture(path))
+      expect(design.topic || design.title).not.toBe('')
+      expect(design.originalFilename).toMatch(/\.md$/)
+    }
+  })
+})
--- a/src/services/markdownParser.test.ts
+++ b/src/services/markdownParser.test.ts
@@ -0,0 +1,82 @@
+import { describe, expect, it } from 'vitest'
+import { parseTeachingDesign } from './markdownParser'
+
+const standard = `# 个人主页——项目启动 教学设计
+
+| **课题** | **个人主页——项目启动** |
+|:---|:---|
+| **课时** | 1课时（40分钟） |
+| **教学目标** | **知识目标**：认识 HTML。<br>**技能目标**：创建页面。<br>**素养目标**：规范操作。 |
+| **教学重难点** | **重点**：HTML。<br>**难点**：路径。 |
+| **教学资源准备** | 浏览器。 |
+
+## 教学过程
+
+| 教学环节 | 教学内容 | 教师活动 | 学生活动 | 设计意图 |
+|:---|:---|:---|:---|:---|
+| **1. 导入**<br>（6分钟） | 展示案例。 | **情境创设**<br>提问。 | **观察思考**<br>回答。 | 建立目标。 |
+
+## 板书设计
+
+\`\`\`text
+HTML → 浏览器
+\`\`\`
+
+## 教学成效与反思
+
+| | |
+|:---|:---|
+| **教学成效** | 完成页面。 |
+| **教学反思** | 加强路径讲解。 |
+`
+
+describe('parseTeachingDesign', () => {
+  it('parses the complete teaching-design structure', () => {
+    const design = parseTeachingDesign('1.md', standard)
+
+    expect(design.topic).toBe('个人主页——项目启动')
+    expect(design.knowledgeObjective).toBe('认识 HTML。')
+    expect(design.processSteps[0]).toMatchObject({
+      name: '1. 导入',
+      duration: '6分钟',
+      content: '展示案例。',
+    })
+    expect(design.boardDesign).toContain('HTML → 浏览器')
+    expect(design.reflection).toBe('加强路径讲解。')
+    expect(design.warnings).toEqual([])
+  })
+
+  it('accepts half-width punctuation and reports missing sections', () => {
+    const markdown = standard
+      .replaceAll('：', ':')
+      .replace(/## 板书设计[\s\S]*?(?=## 教学成效与反思)/, '')
+
+    const design = parseTeachingDesign('8.md', markdown)
+
+    expect(design.knowledgeObjective).toBe('认识 HTML。')
+    expect(design.boardDesign).toBe('')
+    expect(design.warnings.some((warning) => warning.code === 'missing-board')).toBe(true)
+  })
+
+  it('parses process steps where the step number is outside the bold name', () => {
+    const markdown = standard.replace(
+      '| **1. 导入**<br>（6分钟） | 展示案例。 | **情境创设**<br>提问。 | **观察思考**<br>回答。 | 建立目标。 |',
+      '| 1. **导入**<br>(6分钟) | 展示案例。 | **情境创设**<br>提问。 | **观察思考**<br>回答。 | 建立目标。 |',
+    )
+
+    const design = parseTeachingDesign('1.md', markdown)
+
+    expect(design.processSteps[0]).toMatchObject({
+      name: '1. 导入',
+      duration: '6分钟',
+    })
+  })
+
+  it('reports a missing title when no level-one heading exists', () => {
+    const markdown = standard.replace('# 个人主页——项目启动 教学设计\n\n', '')
+
+    const design = parseTeachingDesign('1.md', markdown)
+
+    expect(design.warnings.some((warning) => warning.code === 'missing-title')).toBe(true)
+  })
+})
--- a/src/services/markdownParser.ts
+++ b/src/services/markdownParser.ts
@@ -0,0 +1,282 @@
+import {
+  createEmptyTeachingDesign,
+  createTeachingStep,
+  type ParseWarning,
+  type TeachingDesign,
+  type TeachingStep,
+} from '../domain/teachingDesign'
+import { extractMarkdownTable } from './markdownTable'
+
+const BR = /<br\s*\/?>/gi
+const LABEL_MARKS = /[*_`]/g
+const COLON = /[:：]\s*$/
+const PAREN_DURATION = /[（(]([^（）()]*)[）)]/
+
+const KNOWN_SECTION_HEADINGS = new Set(['教学过程', '板书设计', '教学成效与反思'])
+
+function cleanLabel(value: string): string {
+  return value.replace(LABEL_MARKS, '').trim()
+}
+
+function stripOuterBold(value: string): string {
+  return value.trim().replace(/^\*\*([\s\S]*)\*\*$/, '$1').trim()
+}
+
+function normalizeMultiline(value: string): string {
+  return value.replace(BR, '\n').trim()
+}
+
+function isSectionHeading(line: string, heading: string): boolean {
+  const trimmed = line.trim()
+  return (
+    new RegExp(`^##\\s+${heading}\\s*$`).test(trimmed) || trimmed === `**${heading}**`
+  )
+}
+
+function findSectionIndex(lines: readonly string[], heading: string, fromIndex = 0): number {
+  for (let index = fromIndex; index < lines.length; index += 1) {
+    if (isSectionHeading(lines[index] ?? '', heading)) return index
+  }
+  return -1
+}
+
+function isAnyHeading(line: string): boolean {
+  const trimmed = line.trim()
+  return /^##\s+\S/.test(trimmed) || /^\*\*[^*]+\*\*$/.test(trimmed)
+}
+
+function findNextHeadingIndex(lines: readonly string[], fromIndex: number): number {
+  for (let index = fromIndex; index < lines.length; index += 1) {
+    if (isAnyHeading(lines[index] ?? '')) return index
+  }
+  return -1
+}
+
+function headingName(line: string): string {
+  const trimmed = line.trim()
+  const levelTwo = trimmed.match(/^##\s+(.+)$/)
+  if (levelTwo) return levelTwo[1]!.trim()
+  return trimmed.slice(2, -2).trim()
+}
+
+function splitLabelledValue(value: string, labels: readonly string[]): Record<string, string> {
+  const normalized = value.replace(BR, '\n')
+  const alternation = labels.join('|')
+  const pattern = new RegExp(`(?:\\*\\*(?:${alternation})\\*\\*|(?:${alternation}))\\s*[:：]`, 'g')
+  const matches = [...normalized.matchAll(pattern)]
+  const result: Record<string, string> = {}
+
+  matches.forEach((match, index) => {
+    const label = cleanLabel(match[0].replace(COLON, ''))
+    const start = match.index + match[0].length
+    const end = index + 1 < matches.length ? matches[index + 1]!.index : normalized.length
+    result[label] = normalized.slice(start, end).trim()
+  })
+
+  return result
+}
+
+function parseStepNameCell(cell: string, fallbackIndex: number): { name: string; duration: string } {
+  const normalized = cell.replace(BR, '\n')
+  const parts = normalized
+    .split('\n')
+    .map((part) => part.trim())
+    .filter(Boolean)
+
+  let namePart = parts[0] ?? ''
+  let durationPart = parts[1] ?? ''
+  let duration = ''
+
+  const durationMatch = (durationPart || namePart).match(PAREN_DURATION)
+  if (durationMatch) {
+    duration = durationMatch[1]!.trim()
+    if (durationPart) {
+      durationPart = ''
+    } else {
+      namePart = namePart.replace(durationMatch[0], '').trim()
+    }
+  }
+
+  const name = cleanLabel(namePart) || createTeachingStep(fallbackIndex).name
+  return { name, duration }
+}
+
+function extractBoardContent(sectionLines: readonly string[]): string {
+  const fenceStart = sectionLines.findIndex((line) => /^\s*(`{3,}|~{3,})/.test(line))
+  if (fenceStart < 0) {
+    return sectionLines.join('\n').trim()
+  }
+
+  const fenceMatch = sectionLines[fenceStart]!.match(/^\s*(`{3,}|~{3,})/)!
+  const fenceChar = fenceMatch[1]![0]!
+  const fenceLength = fenceMatch[1]!.length
+  let fenceEnd = sectionLines.length
+
+  for (let index = fenceStart + 1; index < sectionLines.length; index += 1) {
+    const close = sectionLines[index]!.match(/^\s*(`+|~+)\s*$/)
+    if (close && close[1]![0] === fenceChar && close[1]!.length >= fenceLength) {
+      fenceEnd = index
+      break
+    }
+  }
+
+  return sectionLines.slice(fenceStart + 1, fenceEnd).join('\n').trim()
+}
+
+export function parseTeachingDesign(filename: string, markdown: string): TeachingDesign {
+  const design = createEmptyTeachingDesign(filename)
+  const warnings: ParseWarning[] = []
+  const lines = markdown.replace(/\r\n/g, '\n').split('\n')
+
+  const titleLineIndex = lines.findIndex((line) => /^#\s+\S/.test(line.trim()))
+  let headingTitle = ''
+  if (titleLineIndex >= 0) {
+    headingTitle = lines[titleLineIndex]!.trim().replace(/^#\s+/, '').trim()
+  } else {
+    warnings.push({ code: 'missing-title', message: '未找到课程标题（一级标题）。' })
+  }
+
+  const basicTable = extractMarkdownTable(lines, titleLineIndex + 1)
+  const basicFieldsFound = new Set<string>()
+
+  if (basicTable) {
+    for (const row of [basicTable.header, ...basicTable.rows]) {
+      const label = cleanLabel(row[0] ?? '')
+      const value = (row[1] ?? '').trim()
+
+      switch (label) {
+        case '课题':
+          design.topic = stripOuterBold(value)
+          basicFieldsFound.add('topic')
+          break
+        case '课时':
+          design.duration = value
+          basicFieldsFound.add('duration')
+          break
+        case '教学目标': {
+          const objectives = splitLabelledValue(value, ['知识目标', '技能目标', '素养目标'])
+          design.knowledgeObjective = objectives['知识目标'] ?? ''
+          design.skillObjective = objectives['技能目标'] ?? ''
+          design.literacyObjective = objectives['素养目标'] ?? ''
+          basicFieldsFound.add('objectives')
+          break
+        }
+        case '教学重难点': {
+          const points = splitLabelledValue(value, ['重点', '难点'])
+          design.keyPoint = points['重点'] ?? ''
+          design.difficultPoint = points['难点'] ?? ''
+          basicFieldsFound.add('points')
+          break
+        }
+        case '教学资源准备':
+          design.resources = value
+          basicFieldsFound.add('resources')
+          break
+        default:
+          break
+      }
+    }
+  }
+
+  if (!basicTable) {
+    warnings.push({ code: 'missing-basic-field', message: '未找到基本信息表格。' })
+  } else {
+    const requiredFields: Array<[string, string]> = [
+      ['topic', '课题'],
+      ['duration', '课时'],
+      ['objectives', '教学目标'],
+      ['points', '教学重难点'],
+      ['resources', '教学资源准备'],
+    ]
+    for (const [key, label] of requiredFields) {
+      if (!basicFieldsFound.has(key)) {
+        warnings.push({ code: 'missing-basic-field', message: `缺少"${label}"信息。` })
+      }
+    }
+  }
+
+  const titleWithoutSuffix = headingTitle.replace(/\s*教学设计\s*$/, '').trim()
+  design.title = titleWithoutSuffix && titleWithoutSuffix !== design.topic ? headingTitle : ''
+
+  const processIndex = findSectionIndex(lines, '教学过程', titleLineIndex + 1)
+  if (processIndex < 0) {
+    warnings.push({ code: 'missing-process', message: '未找到教学过程章节。' })
+  } else {
+    const processTable = extractMarkdownTable(lines, processIndex + 1)
+    if (!processTable || processTable.header.length < 5) {
+      warnings.push({ code: 'invalid-process-table', message: '教学过程表格格式不正确。' })
+    } else {
+      const steps: TeachingStep[] = []
+      processTable.rows.forEach((row, index) => {
+        if (row.length < 5) return
+        const [nameCell, content, teacherActivity, studentActivity, intention] = row
+        const { name, duration } = parseStepNameCell(nameCell ?? '', index + 1)
+        steps.push({
+          id: crypto.randomUUID(),
+          name,
+          duration,
+          content: normalizeMultiline(content ?? ''),
+          teacherActivity: normalizeMultiline(teacherActivity ?? ''),
+          studentActivity: normalizeMultiline(studentActivity ?? ''),
+          intention: normalizeMultiline(intention ?? ''),
+        })
+      })
+
+      if (steps.length > 0) {
+        design.processSteps = steps
+      } else {
+        warnings.push({ code: 'invalid-process-table', message: '教学过程表格中没有有效的环节行。' })
+      }
+    }
+  }
+
+  const boardIndex = findSectionIndex(lines, '板书设计', titleLineIndex + 1)
+  if (boardIndex < 0) {
+    warnings.push({ code: 'missing-board', message: '未找到板书设计章节。' })
+  } else {
+    const nextHeadingIndex = findNextHeadingIndex(lines, boardIndex + 1)
+    const sectionEnd = nextHeadingIndex < 0 ? lines.length : nextHeadingIndex
+    design.boardDesign = extractBoardContent(lines.slice(boardIndex + 1, sectionEnd))
+  }
+
+  const reflectionIndex = findSectionIndex(lines, '教学成效与反思', titleLineIndex + 1)
+  if (reflectionIndex < 0) {
+    warnings.push({ code: 'missing-reflection', message: '未找到教学成效与反思章节。' })
+  } else {
+    const reflectionTable = extractMarkdownTable(lines, reflectionIndex + 1)
+    if (!reflectionTable) {
+      warnings.push({ code: 'missing-reflection', message: '教学成效与反思表格格式不正确。' })
+    } else {
+      for (const row of reflectionTable.rows) {
+        const label = cleanLabel(row[0] ?? '')
+        const value = normalizeMultiline(row[1] ?? '')
+        if (label === '教学成效') design.effectiveness = value
+        if (label === '教学反思') design.reflection = value
+      }
+    }
+  }
+
+  const additionalParts: string[] = []
+  for (let index = 0; index < lines.length; index += 1) {
+    const line = lines[index]!
+    if (!isAnyHeading(line)) continue
+    const name = headingName(line)
+    if (KNOWN_SECTION_HEADINGS.has(name)) continue
+
+    const nextHeadingIndex = findNextHeadingIndex(lines, index + 1)
+    const sectionEnd = nextHeadingIndex < 0 ? lines.length : nextHeadingIndex
+    const content = lines.slice(index + 1, sectionEnd).join('\n').trim()
+
+    if (content) {
+      additionalParts.push(`## ${name}\n\n${content}`)
+    }
+  }
+
+  if (additionalParts.length > 0) {
+    design.additionalContent = additionalParts.join('\n\n')
+    warnings.push({ code: 'unclassified-content', message: '存在未识别的章节内容。' })
+  }
+
+  design.warnings = warnings
+  return design
+}
--- a/src/services/markdownRenderer.ts
+++ b/src/services/markdownRenderer.ts
@@ -0,0 +1,12 @@
+import MarkdownIt from 'markdown-it'
+
+const renderer = new MarkdownIt({
+  html: false,
+  breaks: true,
+  linkify: false,
+  typographer: false,
+})
+
+export function renderMarkdown(value: string): string {
+  return renderer.render(value || '')
+}
--- a/src/services/markdownTable.ts
+++ b/src/services/markdownTable.ts
@@ -101,23 +101,65 @@ export function splitMarkdownRow(row: string): string[] {

 const dividerCellPattern = /^:?-{3,}:?$/

-function startsWithPipe(line: string): boolean {
+const FENCE_OPEN_PATTERN = / {0,3}(`{3,}|~{3,})/
+const FENCE_CLOSE_PATTERN = / {0,3}(`+|~+)\s*$/
+
+function isTableRow(line: string): boolean {
+  const leading = line.match(/^[ \t]*/)?.[0] ?? ''
+  if (leading.includes('\t') || leading.length >= 4) {
+    return false
+  }
  return line.trimStart().startsWith('|')
 }

+function computeFenceMask(lines: readonly string[]): boolean[] {
+  const mask = new Array<boolean>(lines.length).fill(false)
+  let fenceChar: string | null = null
+  let fenceLength = 0
+
+  for (let index = 0; index < lines.length; index++) {
+    const line = lines[index]!
+
+    if (fenceChar === null) {
+      const open = line.match(new RegExp(`^${FENCE_OPEN_PATTERN.source}`))
+      if (open) {
+        mask[index] = true
+        fenceChar = open[1]![0]!
+        fenceLength = open[1]!.length
+      }
+      continue
+    }
+
+    mask[index] = true
+    const close = line.match(new RegExp(`^${FENCE_CLOSE_PATTERN.source}`))
+    if (close && close[1]![0] === fenceChar && close[1]!.length >= fenceLength) {
+      fenceChar = null
+      fenceLength = 0
+    }
+  }
+
+  return mask
+}
+
 export function extractMarkdownTable(
  lines: readonly string[],
  fromIndex = 0,
 ): MarkdownTable | null {
+  const insideFence = computeFenceMask(lines)
+
  for (
    let start = Math.max(0, fromIndex);
    start < lines.length - 1;
    start++
  ) {
+    if (insideFence[start] || insideFence[start + 1]) {
+      continue
+    }
+
    const headerLine = lines[start]!
    const dividerLine = lines[start + 1]!

-    if (!startsWithPipe(headerLine) || !startsWithPipe(dividerLine)) {
+    if (!isTableRow(headerLine) || !isTableRow(dividerLine)) {
      continue
    }

@@ -135,7 +177,11 @@ export function extractMarkdownTable(
    const rows: string[][] = []
    let end = start + 1

-    while (end + 1 < lines.length && startsWithPipe(lines[end + 1]!)) {
+    while (
+      end + 1 < lines.length &&
+      !insideFence[end + 1] &&
+      isTableRow(lines[end + 1]!)
+    ) {
      end++
      rows.push(splitMarkdownRow(lines[end]!))
    }
--- a/src/services/markdownWriter.test.ts
+++ b/src/services/markdownWriter.test.ts
@@ -0,0 +1,46 @@
+import { readFileSync } from 'node:fs'
+import { resolve } from 'node:path'
+import { describe, expect, it } from 'vitest'
+import { parseTeachingDesign } from './markdownParser'
+import { writeTeachingDesignMarkdown } from './markdownWriter'
+
+describe('writeTeachingDesignMarkdown', () => {
+  it('writes canonical sections that can be parsed again', () => {
+    const source = readFileSync(resolve(process.cwd(), 'data/Web/1.md'), 'utf8')
+    const parsed = parseTeachingDesign('1.md', source)
+    const output = writeTeachingDesignMarkdown(parsed)
+    const reparsed = parseTeachingDesign('1.md', output)
+
+    expect(output).toContain('## 板书设计')
+    expect(reparsed.topic).toBe(parsed.topic)
+    expect(reparsed.processSteps).toHaveLength(parsed.processSteps.length)
+    expect(reparsed.reflection).toBe(parsed.reflection)
+  })
+
+  it('escapes table-breaking pipes but preserves inline markdown', () => {
+    const source = parseTeachingDesign('1.md', readFileSync(
+      resolve(process.cwd(), 'data/Web/1.md'),
+      'utf8',
+    ))
+    source.resources = '终端 | 浏览器与 `index.html`'
+
+    expect(writeTeachingDesignMarkdown(source)).toContain(
+      '终端 \\| 浏览器与 `index.html`',
+    )
+  })
+
+  it('omits decorative parentheses for steps without a duration', () => {
+    const source = parseTeachingDesign('1.md', readFileSync(
+      resolve(process.cwd(), 'data/Web/1.md'),
+      'utf8',
+    ))
+    source.processSteps[0]!.duration = ''
+    source.processSteps[0]!.name = '1. 导入'
+
+    const output = writeTeachingDesignMarkdown(source)
+
+    expect(output).toContain('**1. 导入**')
+    expect(output).not.toContain('**1. 导入**<br>（）')
+    expect(output).not.toContain('**1. 导入**（）')
+  })
+})
--- a/src/services/markdownWriter.ts
+++ b/src/services/markdownWriter.ts
@@ -0,0 +1,76 @@
+import type { TeachingDesign } from '../domain/teachingDesign'
+
+function escapeCell(value: string): string {
+  return value
+    .replace(/\r?\n/g, '<br>')
+    .replace(/(?<!\\)\|/g, '\\|')
+    .trim()
+}
+
+function objectiveCell(design: TeachingDesign): string {
+  return [
+    `**知识目标**：${design.knowledgeObjective}`,
+    `**技能目标**：${design.skillObjective}`,
+    `**素养目标**：${design.literacyObjective}`,
+  ].join('\n')
+}
+
+function keyPointCell(design: TeachingDesign): string {
+  return [`**重点**：${design.keyPoint}`, `**难点**：${design.difficultPoint}`].join('\n')
+}
+
+function processNameCell(step: TeachingDesign['processSteps'][number]): string {
+  return step.duration ? `**${step.name}**\n（${step.duration}）` : `**${step.name}**`
+}
+
+export function writeTeachingDesignMarkdown(design: TeachingDesign): string {
+  const title = design.title || `${design.topic} 教学设计`
+
+  const processRows = design.processSteps.map((step) =>
+    [
+      escapeCell(processNameCell(step)),
+      escapeCell(step.content),
+      escapeCell(step.teacherActivity),
+      escapeCell(step.studentActivity),
+      escapeCell(step.intention),
+    ]
+      .map((cell) => `| ${cell}`)
+      .join(' ') + ' |',
+  )
+
+  const sections = [
+    `# ${title}`,
+    '',
+    `| **课题** | **${escapeCell(design.topic)}** |`,
+    '|:---|:---|',
+    `| **课时** | ${escapeCell(design.duration)} |`,
+    `| **教学目标** | ${escapeCell(objectiveCell(design))} |`,
+    `| **教学重难点** | ${escapeCell(keyPointCell(design))} |`,
+    `| **教学资源准备** | ${escapeCell(design.resources)} |`,
+    '',
+    '## 教学过程',
+    '',
+    '| 教学环节 | 教学内容 | 教师活动 | 学生活动 | 设计意图 |',
+    '|:---|:---|:---|:---|:---|',
+    ...processRows,
+    '',
+    '## 板书设计',
+    '',
+    '```text',
+    design.boardDesign.trim(),
+    '```',
+    '',
+    '## 教学成效与反思',
+    '',
+    '| | |',
+    '|:---|:---|',
+    `| **教学成效** | ${escapeCell(design.effectiveness)} |`,
+    `| **教学反思** | ${escapeCell(design.reflection)} |`,
+  ]
+
+  if (design.additionalContent.trim()) {
+    sections.push('', '## 附加内容', '', design.additionalContent.trim())
+  }
+
+  return `${sections.join('\n')}\n`
+}
--- a/src/services/zipExporter.test.ts
+++ b/src/services/zipExporter.test.ts
@@ -0,0 +1,35 @@
+import JSZip from 'jszip'
+import { describe, expect, it } from 'vitest'
+import { createEmptyTeachingDesign } from '../domain/teachingDesign'
+import { createBookZip } from './zipExporter'
+
+describe('createBookZip', () => {
+  it('keeps original lesson filenames and adds an order manifest', async () => {
+    const second = createEmptyTeachingDesign('2.md')
+    second.topic = '第二课'
+    const first = createEmptyTeachingDesign('1.md')
+    first.topic = '第一课'
+
+    const blob = await createBookZip([second, first])
+    const zip = await JSZip.loadAsync(blob)
+
+    expect(Object.keys(zip.files)).toEqual(
+      expect.arrayContaining(['2.md', '1.md', '课程顺序.txt']),
+    )
+    await expect(zip.file('课程顺序.txt')?.async('text')).resolves.toContain('1. 2.md')
+  })
+
+  it('disambiguates duplicate filenames', async () => {
+    const first = createEmptyTeachingDesign('1.md')
+    first.topic = '第一课甲'
+    const duplicate = createEmptyTeachingDesign('1.md')
+    duplicate.topic = '第一课乙'
+
+    const blob = await createBookZip([first, duplicate])
+    const zip = await JSZip.loadAsync(blob)
+
+    expect(Object.keys(zip.files)).toEqual(
+      expect.arrayContaining(['1.md', '1-2.md', '课程顺序.txt']),
+    )
+  })
+})
--- a/src/services/zipExporter.ts
+++ b/src/services/zipExporter.ts
@@ -0,0 +1,32 @@
+import JSZip from 'jszip'
+import type { TeachingDesign } from '../domain/teachingDesign'
+import { writeTeachingDesignMarkdown } from './markdownWriter'
+
+export async function createBookZip(designs: readonly TeachingDesign[]): Promise<Blob> {
+  const zip = new JSZip()
+  const usedNames = new Set<string>()
+  const order: string[] = []
+
+  designs.forEach((design, index) => {
+    let filename = design.originalFilename || `${index + 1}.md`
+    if (usedNames.has(filename)) {
+      const stem = filename.replace(/\.md$/i, '')
+      filename = `${stem}-${index + 1}.md`
+    }
+    usedNames.add(filename)
+    order.push(`${index + 1}. ${filename} — ${design.topic}`)
+    zip.file(filename, writeTeachingDesignMarkdown(design))
+  })
+
+  zip.file('课程顺序.txt', `${order.join('\n')}\n`)
+  return zip.generateAsync({ type: 'blob' })
+}
+
+export function downloadBlob(blob: Blob, filename: string): void {
+  const url = URL.createObjectURL(blob)
+  const anchor = document.createElement('a')
+  anchor.href = url
+  anchor.download = filename
+  anchor.click()
+  URL.revokeObjectURL(url)
+}
--- a/src/style.css
+++ b/src/style.css
@@ -1,296 +1,594 @@
 :root {
-  --text: #6b6375;
-  --text-h: #08060d;
-  --bg: #fff;
-  --border: #e5e4e7;
-  --code-bg: #f4f3ec;
-  --accent: #aa3bff;
-  --accent-bg: rgba(170, 59, 255, 0.1);
-  --accent-border: rgba(170, 59, 255, 0.5);
-  --social-bg: rgba(244, 243, 236, 0.5);
-  --shadow:
-    rgba(0, 0, 0, 0.1) 0 10px 15px -3px, rgba(0, 0, 0, 0.05) 0 4px 6px -2px;
-
-  --sans: system-ui, 'Segoe UI', Roboto, sans-serif;
-  --heading: system-ui, 'Segoe UI', Roboto, sans-serif;
-  --mono: ui-monospace, Consolas, monospace;
-
-  font: 18px/145% var(--sans);
-  letter-spacing: 0.18px;
-  color-scheme: light dark;
-  color: var(--text);
-  background: var(--bg);
+  font-family: Inter, "PingFang SC", "Microsoft YaHei", sans-serif;
+  color: #202a33;
+  background: #edf0f2;
  font-synthesis: none;
  text-rendering: optimizeLegibility;
-  -webkit-font-smoothing: antialiased;
-  -moz-osx-font-smoothing: grayscale;
-
-  @media (max-width: 1024px) {
-    font-size: 16px;
-  }
+  --green-700: #216447;
+  --green-600: #2d7a58;
+  --green-100: #dceee5;
+  --line: #cfd5da;
+  --muted: #68747f;
+  --paper-width: 210mm;
+  --paper-min-height: 297mm;
 }

-@media (prefers-color-scheme: dark) {
-  :root {
-    --text: #9ca3af;
-    --text-h: #f3f4f6;
-    --bg: #16171d;
-    --border: #2e303a;
-    --code-bg: #1f2028;
-    --accent: #c084fc;
-    --accent-bg: rgba(192, 132, 252, 0.15);
-    --accent-border: rgba(192, 132, 252, 0.5);
-    --social-bg: rgba(47, 48, 58, 0.5);
-    --shadow:
-      rgba(0, 0, 0, 0.4) 0 10px 15px -3px, rgba(0, 0, 0, 0.25) 0 4px 6px -2px;
-  }
-
-  #social .button-icon {
-    filter: invert(1) brightness(2);
-  }
+* {
+  box-sizing: border-box;
 }

 body {
  margin: 0;
+  min-width: 320px;
 }

-h1,
-h2 {
-  font-family: var(--heading);
-  font-weight: 500;
-  color: var(--text-h);
-}
-
-h1 {
-  font-size: 56px;
-  letter-spacing: -1.68px;
-  margin: 32px 0;
-  @media (max-width: 1024px) {
-    font-size: 36px;
-    margin: 20px 0;
-  }
-}
-h2 {
-  font-size: 24px;
-  line-height: 118%;
-  letter-spacing: -0.24px;
-  margin: 0 0 8px;
-  @media (max-width: 1024px) {
-    font-size: 20px;
-  }
-}
-p {
-  margin: 0;
-}
-
-code,
-.counter {
-  font-family: var(--mono);
-  display: inline-flex;
-  border-radius: 4px;
-  color: var(--text-h);
-}
-
-code {
-  font-size: 15px;
-  line-height: 135%;
-  padding: 4px 8px;
-  background: var(--code-bg);
-}
-
-.counter {
-  font-size: 16px;
-  padding: 5px 10px;
-  border-radius: 5px;
-  color: var(--accent);
-  background: var(--accent-bg);
-  border: 2px solid transparent;
-  transition: border-color 0.3s;
-  margin-bottom: 24px;
-
-  &:hover {
-    border-color: var(--accent-border);
-  }
-  &:focus-visible {
-    outline: 2px solid var(--accent);
-    outline-offset: 2px;
-  }
-}
-
-.hero {
-  position: relative;
-
-  .base,
-  .framework,
-  .vite {
-    inset-inline: 0;
-    margin: 0 auto;
-  }
-
-  .base {
-    width: 170px;
-    position: relative;
-    z-index: 0;
-  }
-
-  .framework,
-  .vite {
-    position: absolute;
-  }
-
-  .framework {
-    z-index: 1;
-    top: 34px;
-    height: 28px;
-    transform: perspective(2000px) rotateZ(300deg) rotateX(44deg) rotateY(39deg)
-      scale(1.4);
-  }
-
-  .vite {
-    z-index: 0;
-    top: 107px;
-    height: 26px;
-    width: auto;
-    transform: perspective(2000px) rotateZ(300deg) rotateX(40deg) rotateY(39deg)
-      scale(0.8);
-  }
+button,
+textarea,
+input {
+  font: inherit;
 }

 #app {
-  width: 1126px;
-  max-width: 100%;
-  margin: 0 auto;
-  text-align: center;
-  border-inline: 1px solid var(--border);
-  min-height: 100svh;
-  display: flex;
-  flex-direction: column;
-  box-sizing: border-box;
+  min-height: 100vh;
 }

-#center {
+.app-shell {
  display: flex;
  flex-direction: column;
-  gap: 25px;
-  place-content: center;
-  place-items: center;
-  flex-grow: 1;
-
-  @media (max-width: 1024px) {
-    padding: 32px 20px 24px;
-    gap: 18px;
-  }
+  min-height: 100vh;
 }

-#next-steps {
+/* Toolbar */
+.workspace-toolbar {
  display: flex;
-  border-top: 1px solid var(--border);
+  align-items: center;
+  gap: 16px;
+  height: 56px;
+  flex: 0 0 56px;
+  padding: 0 16px;
+  background: #fff;
+  border-bottom: 1px solid var(--line);
+}
+
+.workspace-toolbar button {
+  border: 1px solid var(--line);
+  background: #fff;
+  border-radius: 6px;
+  padding: 6px 14px;
+  color: var(--green-700);
+  cursor: pointer;
+}
+
+.workspace-toolbar button:hover:not(:disabled) {
+  background: var(--green-100);
+  border-color: var(--green-600);
+}
+
+.workspace-toolbar button:disabled {
+  color: var(--muted);
+  border-color: var(--line);
+  cursor: not-allowed;
+  opacity: 0.6;
+}
+
+.workspace-toolbar-count,
+.workspace-toolbar-warning,
+.workspace-toolbar-status {
+  font-size: 14px;
+  color: var(--muted);
+}
+
+.workspace-toolbar-warning {
+  color: #b65c00;
+}
+
+.workspace-toolbar-status--error {
+  color: #c0392b;
+}
+
+.workspace-toolbar-status--saved {
+  color: var(--green-700);
+}
+
+/* Layout */
+.workspace-layout {
+  display: flex;
+  flex: 1 1 auto;
+  min-height: 0;
+}
+
+/* Sidebar */
+.lesson-sidebar {
+  width: 260px;
+  flex: 0 0 260px;
+  background: #fff;
+  border-right: 1px solid var(--line);
+  overflow-y: auto;
+  display: flex;
+  flex-direction: column;
+}
+
+.lesson-sidebar-cover {
+  border: none;
+  border-bottom: 1px solid var(--line);
+  background: none;
  text-align: left;
-
-  & > div {
-    flex: 1 1 0;
-    padding: 32px;
-    @media (max-width: 1024px) {
-      padding: 24px 20px;
-    }
-  }
-
-  .icon {
-    margin-bottom: 16px;
-    width: 22px;
-    height: 22px;
-  }
-
-  @media (max-width: 1024px) {
-    flex-direction: column;
-    text-align: center;
-  }
+  padding: 12px 16px;
+  font-weight: 600;
+  color: var(--green-700);
+  cursor: pointer;
 }

-#docs {
-  border-right: 1px solid var(--border);
-
-  @media (max-width: 1024px) {
-    border-right: none;
-    border-bottom: 1px solid var(--border);
-  }
-}
-
-#next-steps ul {
+.lesson-sidebar-list {
  list-style: none;
+  margin: 0;
  padding: 0;
+}
+
+.lesson-sidebar-item {
  display: flex;
+  align-items: stretch;
+  border-bottom: 1px solid var(--line);
+}
+
+.lesson-sidebar-item--active {
+  background: var(--green-100);
+  box-shadow: inset 3px 0 0 var(--green-600);
+}
+
+.lesson-sidebar-select {
+  flex: 1 1 auto;
+  display: flex;
+  align-items: center;
  gap: 8px;
-  margin: 32px 0 0;
-
-  .logo {
-    height: 18px;
-  }
-
-  a {
-    color: var(--text-h);
-    font-size: 16px;
-    border-radius: 6px;
-    background: var(--social-bg);
-    display: flex;
-    padding: 6px 12px;
-    align-items: center;
-    gap: 8px;
-    text-decoration: none;
-    transition: box-shadow 0.3s;
-
-    &:hover {
-      box-shadow: var(--shadow);
-    }
-    .button-icon {
-      height: 18px;
-      width: 18px;
-    }
-  }
-
-  @media (max-width: 1024px) {
-    margin-top: 20px;
-    flex-wrap: wrap;
-    justify-content: center;
-
-    li {
-      flex: 1 1 calc(50% - 8px);
-    }
-
-    a {
-      width: 100%;
-      justify-content: center;
-      box-sizing: border-box;
-    }
-  }
+  border: none;
+  background: none;
+  text-align: left;
+  padding: 10px 12px;
+  cursor: pointer;
+  min-width: 0;
 }

-#spacer {
-  height: 88px;
-  border-top: 1px solid var(--border);
-  @media (max-width: 1024px) {
-    height: 48px;
-  }
+.lesson-sidebar-number {
+  flex: 0 0 auto;
+  color: var(--muted);
+  font-size: 13px;
 }

-.ticks {
-  position: relative;
+.lesson-sidebar-topic {
+  flex: 1 1 auto;
+  overflow: hidden;
+  text-overflow: ellipsis;
+  white-space: nowrap;
+}
+
+.lesson-sidebar-badge {
+  flex: 0 0 auto;
+  background: #e67e22;
+  color: #fff;
+  border-radius: 999px;
+  font-size: 12px;
+  line-height: 1.6;
+  min-width: 1.6em;
+  text-align: center;
+  padding: 0 4px;
+}
+
+.lesson-sidebar-remove {
+  flex: 0 0 auto;
+  border: none;
+  background: none;
+  color: var(--muted);
+  cursor: pointer;
+  padding: 0 12px;
+  font-size: 16px;
+}
+
+.lesson-sidebar-remove:hover {
+  color: #c0392b;
+}
+
+/* Paper canvas */
+.a4-workspace {
+  flex: 1 1 auto;
+  overflow: auto;
+  padding: 16mm;
+  display: flex;
+  justify-content: center;
+}
+
+.a4-paper {
+  flex: 0 0 auto;
+}
+
+/* A4 page */
+.page {
+  display: block;
+  width: var(--paper-width);
+  min-height: var(--paper-min-height);
+  margin: 0 auto;
+  padding: 16mm;
+  background: #fff;
+  box-shadow: 0 4px 18px rgba(32, 42, 51, 0.12);
+}
+
+.print-book .page {
+  box-shadow: none;
+}
+
+/* Cover page */
+.cover-page {
+  display: flex;
+  flex-direction: column;
+  align-items: center;
+  justify-content: center;
+  text-align: center;
+  gap: 24px;
+}
+
+.cover-title {
+  font-size: 40px;
+  font-weight: 700;
+  letter-spacing: 0.2em;
+  color: var(--green-700);
+  margin: 0;
+}
+
+.cover-field {
+  display: flex;
+  align-items: center;
+  gap: 12px;
+  font-size: 18px;
+}
+
+.cover-field-label {
+  color: var(--muted);
+}
+
+.cover-field-value {
+  min-width: 12em;
+  text-align: left;
+  border-bottom: 1px solid var(--line);
+}
+
+/* Teaching design page */
+.teaching-design-page {
+  display: flex;
+  flex-direction: column;
+  gap: 12px;
+}
+
+.design-title {
+  text-align: center;
+  font-size: 22px;
+  font-weight: 700;
+  color: var(--green-700);
+}
+
+.section-heading {
+  margin: 12px 0 0;
+  padding-left: 10px;
+  border-left: 4px solid var(--green-600);
+  font-size: 16px;
+  color: var(--green-700);
+}
+
+table {
  width: 100%;
+  border-collapse: collapse;
+  table-layout: fixed;
+}

-  &::before,
-  &::after {
-    content: '';
-    position: absolute;
-    top: -4.5px;
-    border: 5px solid transparent;
+.basic-info-table th,
+.basic-info-table td,
+.process-table th,
+.process-table td,
+.reflection-table th,
+.reflection-table td {
+  border: 1px solid var(--line);
+  padding: 6px 8px;
+  vertical-align: top;
+  text-align: left;
+}
+
+.basic-info-table th,
+.process-table th,
+.reflection-table th {
+  background: var(--green-100);
+  color: var(--green-700);
+  font-weight: 600;
+  width: 8em;
+}
+
+.process-table th {
+  width: auto;
+}
+
+.objectives-cell {
+  display: flex;
+  flex-direction: column;
+  gap: 4px;
+}
+
+.objective-row {
+  display: flex;
+  align-items: baseline;
+  gap: 6px;
+}
+
+.objective-label {
+  flex: 0 0 auto;
+  color: var(--muted);
+  font-size: 13px;
+}
+
+.process-step-name {
+  display: flex;
+  flex-direction: column;
+  gap: 4px;
+}
+
+.process-step-actions {
+  width: 6em;
+  text-align: center;
+}
+
+.process-step-actions button {
+  border: 1px solid var(--line);
+  background: #fff;
+  border-radius: 4px;
+  padding: 2px 6px;
+  font-size: 12px;
+  cursor: pointer;
+  color: #c0392b;
+}
+
+.process-step-actions button:disabled {
+  color: var(--muted);
+  cursor: not-allowed;
+}
+
+.board-design {
+  font-family: ui-monospace, "Cascadia Code", Consolas, monospace;
+  white-space: pre-wrap;
+  border: 1px solid var(--line);
+  border-radius: 4px;
+  padding: 8px;
+  min-height: 6em;
+}
+
+.warning-summary {
+  margin: 8px 0 0;
+  padding: 8px 12px;
+  border: 1px solid #e6c98b;
+  background: #fbf3e1;
+  border-radius: 4px;
+  color: #8a6116;
+  font-size: 13px;
+}
+
+/* Editable fields */
+.editable-field {
+  font: inherit;
+  color: inherit;
+  line-height: 1.6;
+}
+
+.editable-text {
+  display: block;
+  width: 100%;
+  border: 1px solid transparent;
+  border-radius: 4px;
+  padding: 2px 4px;
+  background: transparent;
+  resize: none;
+  overflow: hidden;
+}
+
+.editable-text--multiline {
+  white-space: pre-wrap;
+}
+
+.editable-text--static {
+  display: block;
+  width: 100%;
+  white-space: pre-wrap;
+  padding: 2px 4px;
+}
+
+.editable-text:hover {
+  background: var(--green-100);
+}
+
+.editable-text:focus {
+  background: #fff;
+  border-color: var(--green-600);
+  outline: none;
+}
+
+.editable-markdown {
+  width: 100%;
+}
+
+.markdown-preview {
+  min-height: 1.6em;
+  padding: 2px 4px;
+  border-radius: 4px;
+  border: 1px solid transparent;
+  cursor: text;
+}
+
+.markdown-preview--empty {
+  color: var(--muted);
+}
+
+.markdown-preview :first-child {
+  margin-top: 0;
+}
+
+.markdown-preview :last-child {
+  margin-bottom: 0;
+}
+
+.markdown-preview:hover {
+  background: var(--green-100);
+}
+
+.markdown-source {
+  display: block;
+  width: 100%;
+  border: 1px solid var(--green-600);
+  border-radius: 4px;
+  padding: 2px 4px;
+  background: #fff;
+  resize: none;
+  overflow: hidden;
+  outline: none;
+}
+
+/* Upload dropzone */
+.upload-dropzone {
+  display: flex;
+  flex-direction: column;
+  align-items: center;
+  justify-content: center;
+  gap: 8px;
+  margin: 16mm auto;
+  max-width: 480px;
+  min-height: 200px;
+  border: 2px dashed var(--line);
+  border-radius: 12px;
+  background: #fff;
+  color: var(--muted);
+  text-align: center;
+  padding: 24px;
+  cursor: pointer;
+}
+
+.upload-dropzone--drag-over {
+  border-color: var(--green-600);
+  background: var(--green-100);
+}
+
+.upload-dropzone--compact {
+  flex-direction: row;
+  min-height: 0;
+  margin: 0;
+  padding: 6px 14px;
+  border-radius: 6px;
+}
+
+.upload-dropzone-input {
+  position: absolute;
+  width: 1px;
+  height: 1px;
+  opacity: 0;
+}
+
+.upload-dropzone-title {
+  font-size: 16px;
+  color: #202a33;
+  margin: 0;
+}
+
+.upload-dropzone-hint {
+  font-size: 13px;
+  margin: 0;
+}
+
+/* Dialogs and notices */
+.dialog-overlay {
+  position: fixed;
+  inset: 0;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  background: rgba(32, 42, 51, 0.4);
+  z-index: 10;
+}
+
+.dialog {
+  background: #fff;
+  border-radius: 8px;
+  padding: 24px;
+  max-width: 420px;
+  box-shadow: 0 12px 32px rgba(32, 42, 51, 0.25);
+}
+
+.dialog-filenames {
+  margin: 8px 0;
+  padding-left: 20px;
+  color: var(--muted);
+}
+
+.dialog-actions {
+  display: flex;
+  justify-content: flex-end;
+  gap: 8px;
+  margin-top: 16px;
+}
+
+.dialog-actions button {
+  border: 1px solid var(--line);
+  background: #fff;
+  border-radius: 6px;
+  padding: 6px 14px;
+  cursor: pointer;
+}
+
+.app-notice {
+  margin: 0;
+  padding: 8px 16px;
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  gap: 12px;
+}
+
+.app-notice--error {
+  background: #fdecea;
+  color: #c0392b;
+  border-bottom: 1px solid #f5c6c0;
+}
+
+.app-notice button {
+  border: 1px solid currentcolor;
+  background: none;
+  border-radius: 4px;
+  padding: 2px 8px;
+  cursor: pointer;
+  color: inherit;
+}
+
+.visually-hidden {
+  position: absolute;
+  width: 1px;
+  height: 1px;
+  overflow: hidden;
+  clip: rect(0, 0, 0, 0);
+  white-space: nowrap;
+}
+
+/* Responsive */
+@media (max-width: 900px) {
+  .workspace-layout {
+    flex-direction: column;
  }

-  &::before {
-    left: 0;
-    border-left-color: var(--border);
+  .lesson-sidebar {
+    width: auto;
+    flex: 0 0 auto;
+    max-height: 180px;
+    border-right: none;
+    border-bottom: 1px solid var(--line);
  }
-  &::after {
-    right: 0;
-    border-right-color: var(--border);
+
+  .a4-workspace {
+    padding: 6mm;
+  }
+
+  .page {
+    width: 100%;
+    min-height: auto;
  }
 }
				`@@ -1 +0,0 @@`
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