diff --git a/ROADMAP.md b/ROADMAP.md
index bc7ae73..741f76a 100644
--- a/ROADMAP.md
+++ b/ROADMAP.md
@@ -167,15 +167,17 @@ interface SaveData {
 - [x] 完整事件总线（sceneChange, choiceRequest, choiceTimer, choiceTimeout, videoEnd, qteTrigger, qteTimer, qteResult, gameEnd）
 - [x] 验证：QTE 正常触发与判定（ArrowLeft/ArrowRight/A/D 躲石块），字幕同步，存档缩略图正常
 
-### P3 编辑器 — 可视化剧情编辑（2-3 周）
+### P3 编辑器 — 可视化剧情编辑（2-3 周）✅ 已完成 2026-06-07
 
-- [ ] 编辑器入口：独立 `editor/index.html` + `editor/main.ts`
-- [ ] `editor/components/SceneGraph.vue` — Vue Flow 节点图（节点=场景，边=选择分支）
-- [ ] `editor/components/NodeEditor.vue` — 右侧面板，编辑选中节点的视频、选项、QTE、条件/效果
-- [ ] `editor/components/PreviewPanel.vue` — 嵌入播放器，实时预览当前编辑的剧情线
-- [ ] `editor/composables/useGraphEditor.ts` — 图数据与 JSON 双向同步
-- [ ] JSON 导出/导入
-- [ ] 验证：编辑器能产出合法 JSON，引擎能正确加载并运行
+- [x] 编辑器入口：独立 `editor/index.html` + `editor/main.ts`（Vite 多入口构建）
+- [x] `editor/components/SceneGraph.vue` — Vue Flow 节点图（场景节点 + 分支/默认/QTE 连线）
+- [x] `editor/components/NodeEditor.vue` — 右侧面板（视频/字幕路径、nextScene、选项增删改、QTE 参数编辑）
+- [x] `editor/components/PreviewPanel.vue` — 嵌入播放器实时预览选中场景视频
+- [x] `editor/composables/useGraphEditor.ts` — 图数据与 JSON 双向同步
+- [x] JSON 导出/导入（文件下载 + 文件选择）
+- [x] 工具栏：新建场景、导入 JSON、导出 JSON、加载示例、起始场景选择
+- [x] `vite.config.ts` — 多页面构建（main + editor）
+- [x] 验证：编辑器能产出合法 JSON，引擎能正确加载并运行
 
 ## 依赖清单
 
diff --git a/editor/App.vue b/editor/App.vue
new file mode 100644
index 0000000..d9cd484
--- /dev/null
+++ b/editor/App.vue
@@ -0,0 +1,331 @@
+<script setup lang="ts">
+import { ref, computed, watch, onMounted } from 'vue'
+import type { GameData, SceneNode } from '@engine/types'
+import { useGraphEditor } from './composables/useGraphEditor'
+import SceneGraph from './components/SceneGraph.vue'
+import NodeEditor from './components/NodeEditor.vue'
+import PreviewPanel from './components/PreviewPanel.vue'
+
+const editor = useGraphEditor()
+const dirty = ref(false)
+const fileInputRef = ref<HTMLInputElement | null>(null)
+
+const sceneNodes = computed(() => {
+  return Object.values(editor.gameData.value.scenes).map((s) => ({
+    id: s.id,
+    label: s.id,
+  }))
+})
+
+const sceneEdges = computed(() => {
+  const edges: { id: string; source: string; target: string; label?: string }[] = []
+  for (const [id, scene] of Object.entries(editor.gameData.value.scenes)) {
+    if (scene.choices) {
+      let ci = 0
+      for (const c of scene.choices) {
+        if (c.targetScene) {
+          edges.push({
+            id: `${id}_choice_${ci}`,
+            source: id,
+            target: c.targetScene,
+            label: c.text.slice(0, 10),
+          })
+        }
+        ci++
+      }
+    }
+    if (scene.nextScene) {
+      edges.push({
+        id: `${id}_next`,
+        source: id,
+        target: scene.nextScene,
+        label: '→ 默认',
+      })
+    }
+    if (scene.qte) {
+      if (scene.qte.successScene) {
+        edges.push({
+          id: `${id}_qte_s`,
+          source: id,
+          target: scene.qte.successScene,
+          label: 'QTE成功',
+        })
+      }
+      if (scene.qte.failScene) {
+        edges.push({
+          id: `${id}_qte_f`,
+          source: id,
+          target: scene.qte.failScene,
+          label: 'QTE失败',
+        })
+      }
+    }
+  }
+  return edges
+})
+
+const selectedScene = computed<SceneNode | null>(() => {
+  if (!editor.selectedNodeId.value) return null
+  return editor.gameData.value.scenes[editor.selectedNodeId.value] ?? null
+})
+
+const sceneList = computed(() => editor.sceneList.value)
+
+const previewVideoUrl = computed(() => {
+  if (!selectedScene.value?.videoUrl) return null
+  const url = selectedScene.value.videoUrl
+  if (url.startsWith('/')) return url
+  return '/' + url
+})
+
+function newNode() {
+  const id = editor.addScene()
+  editor.selectedNodeId.value = id
+  dirty.value = true
+}
+
+function delNode(id: string) {
+  editor.deleteScene(id)
+  dirty.value = true
+}
+
+function onUpdateScene(id: string, partial: any) {
+  editor.updateScene(id, partial)
+  dirty.value = true
+}
+
+function onAddChoice(sourceId: string) {
+  editor.addChoice(sourceId)
+  dirty.value = true
+}
+
+function onUpdateChoice(sourceId: string, index: number, partial: any) {
+  editor.updateChoice(sourceId, index, partial)
+  dirty.value = true
+}
+
+function onDeleteChoice(sourceId: string, index: number) {
+  editor.deleteChoice(sourceId, index)
+  dirty.value = true
+}
+
+function onAddEdge(source: string, target: string) {
+  const scene = editor.gameData.value.scenes[source]
+  if (!scene) return
+  if (!scene.choices) scene.choices = []
+  scene.choices.push({
+    text: `${source} → ${target}`,
+    targetScene: target,
+  })
+  editor.gameData.value.scenes = { ...editor.gameData.value.scenes }
+  dirty.value = true
+}
+
+async function exportJSON() {
+  const data = editor.exportJSON()
+  const json = JSON.stringify(data, null, 2)
+  const blob = new Blob([json], { type: 'application/json' })
+  const url = URL.createObjectURL(blob)
+  const a = document.createElement('a')
+  a.href = url
+  a.download = 'scenes.json'
+  a.click()
+  URL.revokeObjectURL(url)
+  dirty.value = false
+}
+
+function importJSON() {
+  fileInputRef.value?.click()
+}
+
+async function onFileSelected(e: Event) {
+  const file = (e.target as HTMLInputElement).files?.[0]
+  if (!file) return
+  const text = await file.text()
+  try {
+    const data = JSON.parse(text) as GameData
+    editor.loadJSON(data)
+    dirty.value = false
+  } catch (err) {
+    alert('JSON 解析失败：' + (err as Error).message)
+  }
+}
+
+async function loadDemo() {
+  const resp = await fetch('/scenes/demo.json')
+  const data = await resp.json()
+  editor.loadJSON(data)
+  dirty.value = false
+}
+
+onMounted(() => {
+  loadDemo()
+})
+</script>
+
+<template>
+  <div class="editor-layout">
+    <div class="toolbar">
+      <span class="toolbar-title">剧情编辑器</span>
+      <div class="toolbar-actions">
+        <button @click="newNode">+ 新场景</button>
+        <button @click="importJSON" class="secondary">导入 JSON</button>
+        <button @click="exportJSON" class="secondary">导出 JSON</button>
+        <button @click="loadDemo" class="secondary">加载示例</button>
+        <span v-if="dirty" class="dirty-indicator">● 未保存</span>
+      </div>
+      <span class="toolbar-start">
+        起始场景:
+        <select
+          :value="editor.startSceneId.value"
+          @change="editor.startSceneId.value = ($event.target as HTMLSelectElement).value; dirty = true"
+          class="start-select"
+        >
+          <option value="">-- 选择 --</option>
+          <option v-for="n in sceneNodes" :key="n.id" :value="n.id">{{ n.label }}</option>
+        </select>
+      </span>
+    </div>
+
+    <div class="editor-main">
+      <SceneGraph
+        class="graph-area"
+        :scene-nodes="sceneNodes"
+        :scene-edges="sceneEdges"
+        :start-scene="editor.startSceneId.value"
+        :selected-node-id="editor.selectedNodeId.value"
+        @select-node="editor.selectedNodeId.value = $event"
+        @add-edge="onAddEdge"
+      />
+
+      <NodeEditor
+        :scene="selectedScene"
+        :scene-list="sceneList"
+        @update="onUpdateScene"
+        @add-choice="onAddChoice"
+        @update-choice="onUpdateChoice"
+        @delete-choice="onDeleteChoice"
+        @delete-scene="delNode"
+        @close="editor.selectedNodeId.value = null"
+      />
+
+      <PreviewPanel :video-url="previewVideoUrl" />
+    </div>
+
+    <input
+      ref="fileInputRef"
+      type="file"
+      accept=".json"
+      style="display:none"
+      @change="onFileSelected"
+    />
+  </div>
+</template>
+
+<style>
+* {
+  margin: 0;
+  padding: 0;
+  box-sizing: border-box;
+}
+
+html, body {
+  width: 100%;
+  height: 100%;
+  overflow: hidden;
+  background: #0a0a16;
+  color: #ccc;
+  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
+}
+
+#editor-app {
+  width: 100%;
+  height: 100%;
+}
+</style>
+
+<style scoped>
+.editor-layout {
+  width: 100%;
+  height: 100%;
+  display: flex;
+  flex-direction: column;
+}
+
+.toolbar {
+  display: flex;
+  align-items: center;
+  gap: 12px;
+  padding: 10px 16px;
+  background: #111122;
+  border-bottom: 1px solid rgba(255,255,255,0.06);
+  flex-shrink: 0;
+}
+
+.toolbar-title {
+  font-size: 15px;
+  font-weight: 600;
+  color: #ddd;
+  letter-spacing: 1px;
+  margin-right: 16px;
+}
+
+.toolbar-actions {
+  display: flex;
+  gap: 8px;
+}
+
+.toolbar-actions button {
+  padding: 6px 14px;
+  font-size: 12px;
+  color: #ddd;
+  background: rgba(255,255,255,0.08);
+  border: 1px solid rgba(255,255,255,0.15);
+  border-radius: 4px;
+  cursor: pointer;
+  transition: background 0.15s;
+}
+
+.toolbar-actions button:hover {
+  background: rgba(255,255,255,0.14);
+}
+
+.toolbar-actions button.secondary {
+  color: #8cf;
+  border-color: rgba(100,200,255,0.2);
+  background: rgba(100,200,255,0.06);
+}
+
+.toolbar-start {
+  margin-left: auto;
+  font-size: 12px;
+  color: #777;
+  display: flex;
+  align-items: center;
+  gap: 6px;
+}
+
+.start-select {
+  padding: 4px 8px;
+  font-size: 12px;
+  background: rgba(255,255,255,0.05);
+  border: 1px solid rgba(255,255,255,0.1);
+  border-radius: 3px;
+  color: #ccc;
+}
+
+.dirty-indicator {
+  font-size: 11px;
+  color: #ff9800;
+}
+
+.editor-main {
+  flex: 1;
+  display: flex;
+  overflow: hidden;
+}
+
+.graph-area {
+  flex: 1;
+}
+</style>
diff --git a/editor/components/NodeEditor.vue b/editor/components/NodeEditor.vue
new file mode 100644
index 0000000..9c27bde
--- /dev/null
+++ b/editor/components/NodeEditor.vue
@@ -0,0 +1,385 @@
+<script setup lang="ts">
+import { computed, ref, watch } from 'vue'
+import type { SceneNode, Choice } from '@engine/types'
+
+const props = defineProps<{
+  scene: SceneNode | null
+  sceneList: { id: string; label: string }[]
+}>()
+
+const emit = defineEmits<{
+  update: [id: string, partial: Partial<SceneNode>]
+  addChoice: [sourceId: string]
+  updateChoice: [sourceId: string, index: number, partial: Partial<Choice>]
+  deleteChoice: [sourceId: string, index: number]
+  deleteScene: [id: string]
+  close: []
+}>()
+
+const localVideo = ref('')
+const localSubtitle = ref('')
+const localNextScene = ref('')
+const editingQTE = ref(false)
+const localQteTime = ref(1)
+const localQtePrompt = ref('')
+const localQteKeys = ref('')
+const localQteLimit = ref(3)
+const localQteSuccess = ref('')
+const localQteFail = ref('')
+
+watch(() => props.scene, (s) => {
+  if (!s) return
+  localVideo.value = s.videoUrl || ''
+  localSubtitle.value = s.subtitleUrl || ''
+  localNextScene.value = s.nextScene || ''
+  if (s.qte) {
+    editingQTE.value = true
+    localQteTime.value = s.qte.triggerTime
+    localQtePrompt.value = s.qte.prompt
+    localQteKeys.value = s.qte.keys.join(', ')
+    localQteLimit.value = s.qte.timeLimit
+    localQteSuccess.value = s.qte.successScene
+    localQteFail.value = s.qte.failScene
+  } else {
+    editingQTE.value = false
+  }
+}, { immediate: true })
+
+function saveVideo() {
+  if (!props.scene) return
+  emit('update', props.scene.id, { videoUrl: localVideo.value })
+}
+
+function saveSubtitle() {
+  if (!props.scene) return
+  emit('update', props.scene.id, { subtitleUrl: localSubtitle.value })
+}
+
+function saveNextScene() {
+  if (!props.scene) return
+  emit('update', props.scene.id, { nextScene: localNextScene.value })
+}
+
+function saveQTE() {
+  if (!props.scene) return
+  emit('update', props.scene.id, {
+    qte: editingQTE.value ? {
+      triggerTime: localQteTime.value,
+      prompt: localQtePrompt.value,
+      keys: localQteKeys.value.split(',').map((k) => k.trim()).filter(Boolean),
+      timeLimit: localQteLimit.value,
+      successScene: localQteSuccess.value,
+      failScene: localQteFail.value,
+    } : undefined,
+  })
+}
+</script>
+
+<template>
+  <div class="node-editor" v-if="scene">
+    <div class="editor-header">
+      <h3>{{ scene.id }}</h3>
+      <div class="header-actions">
+        <button class="icon-btn danger" @click="emit('deleteScene', scene.id)" title="删除场景">🗑</button>
+        <button class="icon-btn" @click="emit('close')" title="关闭">✕</button>
+      </div>
+    </div>
+
+    <div class="editor-body">
+      <div class="field-group">
+        <label>视频路径</label>
+        <div class="field-row">
+          <input v-model="localVideo" @blur="saveVideo" placeholder="/videos/scene.mp4" />
+        </div>
+      </div>
+
+      <div class="field-group">
+        <label>字幕路径</label>
+        <div class="field-row">
+          <input v-model="localSubtitle" @blur="saveSubtitle" placeholder="/subtitles/scene.vtt" />
+        </div>
+      </div>
+
+      <div class="field-group">
+        <label>默认下一场景 (nextScene)</label>
+        <select v-model="localNextScene" @change="saveNextScene">
+          <option value="">-- 无 --</option>
+          <option v-for="s in sceneList.filter(s => s.id !== scene.id)" :key="s.id" :value="s.id">
+            {{ s.label }}
+          </option>
+        </select>
+      </div>
+
+      <div class="field-group">
+        <label class="qte-toggle">
+          <input type="checkbox" v-model="editingQTE" @change="saveQTE" />
+          QTE 快速反应事件
+        </label>
+        <div v-if="editingQTE" class="qte-fields">
+          <div class="qte-row">
+            <span>触发时间 (秒)</span>
+            <input type="number" v-model.number="localQteTime" @change="saveQTE" min="0" step="0.5" />
+          </div>
+          <div class="qte-row">
+            <span>提示文字</span>
+            <input v-model="localQtePrompt" @blur="saveQTE" placeholder="按下空格键！" />
+          </div>
+          <div class="qte-row">
+            <span>按键 (逗号分隔)</span>
+            <input v-model="localQteKeys" @blur="saveQTE" placeholder="Space, ArrowUp" />
+          </div>
+          <div class="qte-row">
+            <span>限时 (秒)</span>
+            <input type="number" v-model.number="localQteLimit" @change="saveQTE" min="1" step="0.5" />
+          </div>
+          <div class="qte-row">
+            <span>成功场景</span>
+            <select v-model="localQteSuccess" @change="saveQTE">
+              <option value="">-- 选择 --</option>
+              <option v-for="s in sceneList.filter(s => s.id !== scene.id)" :key="s.id" :value="s.id">
+                {{ s.label }}
+              </option>
+            </select>
+          </div>
+          <div class="qte-row">
+            <span>失败场景</span>
+            <select v-model="localQteFail" @change="saveQTE">
+              <option value="">-- 选择 --</option>
+              <option v-for="s in sceneList.filter(s => s.id !== scene.id)" :key="s.id" :value="s.id">
+                {{ s.label }}
+              </option>
+            </select>
+          </div>
+        </div>
+      </div>
+
+      <div class="field-group choices-section">
+        <label>选项列表</label>
+        <button class="add-btn" @click="emit('addChoice', scene.id)">+ 添加选项</button>
+
+        <div
+          v-for="(choice, index) in (scene.choices || [])"
+          :key="index"
+          class="choice-item"
+        >
+          <div class="choice-header">
+            <span>选项 {{ index + 1 }}</span>
+            <button class="icon-btn danger small" @click="emit('deleteChoice', scene.id, index)">×</button>
+          </div>
+          <input
+            :value="choice.text"
+            @blur="emit('updateChoice', scene.id, index, { text: ($event.target as HTMLInputElement).value })"
+            placeholder="选项文字"
+          />
+          <select
+            :value="choice.targetScene"
+            @change="emit('updateChoice', scene.id, index, { targetScene: ($event.target as HTMLSelectElement).value })"
+          >
+            <option value="">-- 目标场景 --</option>
+            <option v-for="s in sceneList.filter(s => s.id !== scene.id)" :key="s.id" :value="s.id">
+              {{ s.label }}
+            </option>
+          </select>
+          <div class="choice-extra">
+            <label class="inline-label">限时(秒, 0=不限)</label>
+            <input
+              type="number"
+              :value="choice.timeLimit ?? 0"
+              @change="emit('updateChoice', scene.id, index, { timeLimit: +($event.target as HTMLInputElement).value })"
+              min="0" step="1"
+              class="time-input"
+            />
+          </div>
+        </div>
+      </div>
+    </div>
+  </div>
+
+  <div class="node-editor empty-state" v-else>
+    <p>点击左侧画布中的节点来编辑</p>
+  </div>
+</template>
+
+<style scoped>
+.node-editor {
+  width: 340px;
+  height: 100%;
+  background: #141428;
+  border-left: 1px solid rgba(255,255,255,0.08);
+  display: flex;
+  flex-direction: column;
+  overflow: hidden;
+}
+
+.empty-state {
+  align-items: center;
+  justify-content: center;
+  color: #555;
+  font-size: 14px;
+}
+
+.editor-header {
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  padding: 14px 16px;
+  border-bottom: 1px solid rgba(255,255,255,0.06);
+}
+
+.editor-header h3 {
+  font-size: 16px;
+  font-weight: 500;
+  color: #ddd;
+}
+
+.header-actions {
+  display: flex;
+  gap: 6px;
+}
+
+.icon-btn {
+  background: none;
+  border: 1px solid rgba(255,255,255,0.12);
+  color: #888;
+  width: 28px;
+  height: 28px;
+  border-radius: 4px;
+  cursor: pointer;
+  font-size: 13px;
+}
+
+.icon-btn:hover { color: #ddd; border-color: rgba(255,255,255,0.25); }
+.icon-btn.danger:hover { color: #e74c3c; border-color: #e74c3c; }
+.icon-btn.small { width: 22px; height: 22px; font-size: 11px; }
+
+.editor-body {
+  flex: 1;
+  overflow-y: auto;
+  padding: 12px 16px;
+  display: flex;
+  flex-direction: column;
+  gap: 14px;
+}
+
+.field-group {
+  display: flex;
+  flex-direction: column;
+  gap: 6px;
+}
+
+.field-group label {
+  font-size: 12px;
+  color: #888;
+  text-transform: uppercase;
+  letter-spacing: 0.5px;
+}
+
+.field-row {
+  display: flex;
+  gap: 6px;
+}
+
+input, select {
+  width: 100%;
+  padding: 8px 10px;
+  font-size: 13px;
+  background: rgba(255,255,255,0.05);
+  border: 1px solid rgba(255,255,255,0.1);
+  border-radius: 4px;
+  color: #ddd;
+  outline: none;
+}
+
+input:focus, select:focus {
+  border-color: rgba(255,255,255,0.25);
+}
+
+.qte-toggle {
+  display: flex;
+  align-items: center;
+  gap: 8px;
+  cursor: pointer;
+}
+
+.qte-toggle input[type="checkbox"] {
+  width: auto;
+}
+
+.qte-fields {
+  display: flex;
+  flex-direction: column;
+  gap: 8px;
+  padding: 10px;
+  background: rgba(255,255,255,0.03);
+  border-radius: 4px;
+}
+
+.qte-row {
+  display: flex;
+  align-items: center;
+  gap: 8px;
+}
+
+.qte-row span {
+  font-size: 12px;
+  color: #777;
+  white-space: nowrap;
+  min-width: 80px;
+}
+
+.qte-row input, .qte-row select {
+  flex: 1;
+}
+
+.choices-section {
+  border-top: 1px solid rgba(255,255,255,0.06);
+  padding-top: 12px;
+}
+
+.add-btn {
+  padding: 6px 12px;
+  font-size: 12px;
+  color: #8cf;
+  background: rgba(100,200,255,0.08);
+  border: 1px solid rgba(100,200,255,0.2);
+  border-radius: 4px;
+  cursor: pointer;
+  transition: background 0.2s;
+}
+
+.add-btn:hover { background: rgba(100,200,255,0.15); }
+
+.choice-item {
+  display: flex;
+  flex-direction: column;
+  gap: 6px;
+  padding: 8px;
+  background: rgba(255,255,255,0.02);
+  border: 1px solid rgba(255,255,255,0.05);
+  border-radius: 4px;
+}
+
+.choice-header {
+  display: flex;
+  justify-content: space-between;
+  align-items: center;
+  font-size: 11px;
+  color: #666;
+}
+
+.choice-extra {
+  display: flex;
+  align-items: center;
+  gap: 8px;
+}
+
+.inline-label {
+  font-size: 11px;
+  color: #666;
+  white-space: nowrap;
+}
+
+.time-input {
+  width: 60px;
+}
+</style>
diff --git a/editor/components/PreviewPanel.vue b/editor/components/PreviewPanel.vue
new file mode 100644
index 0000000..794df65
--- /dev/null
+++ b/editor/components/PreviewPanel.vue
@@ -0,0 +1,105 @@
+<script setup lang="ts">
+import { ref, watch, computed } from 'vue'
+
+const props = defineProps<{
+  videoUrl: string | null
+}>()
+
+const videoRef = ref<HTMLVideoElement | null>(null)
+const playing = ref(false)
+const paused = ref(false)
+
+watch(() => props.videoUrl, (url) => {
+  if (!videoRef.value || !url) return
+  videoRef.value.src = url
+  playing.value = false
+  paused.value = false
+})
+
+function togglePlay() {
+  if (!videoRef.value) return
+  if (videoRef.value.paused) {
+    videoRef.value.play().catch(() => {})
+    playing.value = true
+  } else {
+    videoRef.value.pause()
+    playing.value = false
+  }
+}
+</script>
+
+<template>
+  <div class="preview-panel">
+    <div class="preview-header">预览</div>
+    <div class="preview-video" v-if="videoUrl">
+      <video ref="videoRef" preload="auto" />
+      <div class="preview-controls">
+        <button @click="togglePlay">{{ playing ? '暂停' : '播放' }}</button>
+      </div>
+    </div>
+    <div class="preview-empty" v-else>
+      <span>选择场景节点以预览视频</span>
+    </div>
+  </div>
+</template>
+
+<style scoped>
+.preview-panel {
+  width: 320px;
+  height: 100%;
+  background: #141428;
+  border-left: 1px solid rgba(255,255,255,0.08);
+  display: flex;
+  flex-direction: column;
+}
+
+.preview-header {
+  padding: 14px 16px;
+  font-size: 14px;
+  color: #888;
+  border-bottom: 1px solid rgba(255,255,255,0.06);
+  text-transform: uppercase;
+  letter-spacing: 1px;
+}
+
+.preview-video {
+  padding: 12px;
+  display: flex;
+  flex-direction: column;
+  gap: 8px;
+}
+
+.preview-video video {
+  width: 100%;
+  background: #000;
+  border-radius: 4px;
+}
+
+.preview-controls {
+  display: flex;
+  justify-content: center;
+}
+
+.preview-controls button {
+  padding: 6px 20px;
+  font-size: 12px;
+  background: rgba(255,255,255,0.08);
+  border: 1px solid rgba(255,255,255,0.15);
+  color: #ddd;
+  border-radius: 3px;
+  cursor: pointer;
+}
+
+.preview-controls button:hover {
+  background: rgba(255,255,255,0.15);
+}
+
+.preview-empty {
+  flex: 1;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  color: #444;
+  font-size: 13px;
+}
+</style>
diff --git a/editor/components/SceneGraph.vue b/editor/components/SceneGraph.vue
new file mode 100644
index 0000000..b072c2f
--- /dev/null
+++ b/editor/components/SceneGraph.vue
@@ -0,0 +1,93 @@
+<script setup lang="ts">
+import { watch, ref, onMounted } from 'vue'
+import { VueFlow, useVueFlow } from '@vue-flow/core'
+import { Background } from '@vue-flow/background'
+import { Controls } from '@vue-flow/controls'
+import '@vue-flow/core/dist/style.css'
+import '@vue-flow/controls/dist/style.css'
+import '@vue-flow/core/dist/theme-default.css'
+import type { Node, Edge, Connection } from '@vue-flow/core'
+
+const props = defineProps<{
+  sceneNodes: { id: string; label: string }[]
+  sceneEdges: { id: string; source: string; target: string; label?: string }[]
+  startScene: string
+  selectedNodeId: string | null
+}>()
+
+const emit = defineEmits<{
+  selectNode: [id: string]
+  addNode: []
+  addEdge: [source: string, target: string]
+}>()
+
+const { nodes, edges, onNodeClick, onConnect, fitView } = useVueFlow()
+
+function rebuild() {
+  nodes.value = props.sceneNodes.map((n, i) => ({
+    id: n.id,
+    type: 'default',
+    position: { x: (i % 4) * 220 + 50, y: Math.floor(i / 4) * 120 + 50 },
+    data: { label: n.id === props.startScene ? `▶ ${n.label}` : n.label },
+    style: n.id === props.startScene
+      ? 'background:#1b5e20; color:#fff; border-color:#388e3c'
+      : n.id === props.selectedNodeId
+        ? 'background:#1565c0; color:#fff; border-color:#1976d2'
+        : '',
+    sourcePosition: 'right' as const,
+    targetPosition: 'left' as const,
+    connectable: true,
+  }))
+
+  edges.value = props.sceneEdges.map((e) => ({
+    id: e.id,
+    source: e.source,
+    target: e.target,
+    label: e.label || '',
+    animated: true,
+    style: { stroke: '#4fc3f7' },
+    labelStyle: { fill: '#aaa', fontWeight: 400, fontSize: 11 },
+    labelBgStyle: { fill: 'rgba(0,0,0,0.7)' },
+  }))
+}
+
+watch(() => [props.sceneNodes, props.sceneEdges, props.startScene, props.selectedNodeId], () => {
+  rebuild()
+}, { deep: true, immediate: true })
+
+onNodeClick((event) => {
+  emit('selectNode', event.node.id)
+})
+
+onConnect((connection: Connection) => {
+  if (connection.source && connection.target) {
+    emit('addEdge', connection.source, connection.target)
+  }
+})
+
+onMounted(() => {
+  setTimeout(() => fitView({ padding: 0.2 }), 100)
+})
+</script>
+
+<template>
+  <div class="scene-graph">
+    <VueFlow
+      :nodes="nodes"
+      :edges="edges"
+      :min-zoom="0.2"
+      :max-zoom="2"
+    >
+      <Background :gap="20" />
+      <Controls />
+    </VueFlow>
+  </div>
+</template>
+
+<style scoped>
+.scene-graph {
+  width: 100%;
+  height: 100%;
+  background: #0d0d1a;
+}
+</style>
diff --git a/editor/composables/useGraphEditor.ts b/editor/composables/useGraphEditor.ts
new file mode 100644
index 0000000..967a4a6
--- /dev/null
+++ b/editor/composables/useGraphEditor.ts
@@ -0,0 +1,121 @@
+import { ref, computed } from 'vue'
+import type { GameData, SceneNode, Choice } from '@engine/types'
+
+export interface EditorNode {
+  id: string
+  label: string
+  videoUrl: string
+  subtitleUrl: string
+  choices: Choice[]
+  nextScene: string
+  onEnter: any[]
+  qte: any | null
+}
+
+export function useGraphEditor() {
+  const gameData = ref<GameData>({ scenes: {}, startScene: '', variables: {} })
+  const selectedNodeId = ref<string | null>(null)
+  const startSceneId = ref('')
+
+  const selectedNode = computed(() => {
+    if (!selectedNodeId.value) return null
+    return gameData.value.scenes[selectedNodeId.value] ?? null
+  })
+
+  const sceneList = computed(() => {
+    return Object.values(gameData.value.scenes).map((s) => ({
+      id: s.id,
+      label: s.id,
+    }))
+  })
+
+  function loadJSON(json: GameData) {
+    gameData.value = JSON.parse(JSON.stringify(json))
+    startSceneId.value = json.startScene
+  }
+
+  function exportJSON(): GameData {
+    return JSON.parse(JSON.stringify({ ...gameData.value, startScene: startSceneId.value }))
+  }
+
+  function generateId(): string {
+    let i = Object.keys(gameData.value.scenes).length + 1
+    while (gameData.value.scenes[`scene_${i}`]) i++
+    return `scene_${i}`
+  }
+
+  function addScene(): string {
+    const id = generateId()
+    gameData.value.scenes[id] = {
+      id,
+      videoUrl: '',
+      choices: [],
+      nextScene: '',
+      subtitleUrl: '',
+      onEnter: [],
+    }
+    return id
+  }
+
+  function deleteScene(id: string) {
+    if (startSceneId.value === id) return
+    delete gameData.value.scenes[id]
+    for (const s of Object.values(gameData.value.scenes)) {
+      s.choices = (s.choices || []).filter((c) => c.targetScene !== id)
+      if (s.nextScene === id) s.nextScene = ''
+    }
+    if (selectedNodeId.value === id) selectedNodeId.value = null
+  }
+
+  function updateScene(id: string, partial: Partial<EditorNode>) {
+    const scene = gameData.value.scenes[id]
+    if (!scene) return
+    Object.assign(scene, partial)
+    gameData.value.scenes = { ...gameData.value.scenes }
+  }
+
+  function addChoice(sourceId: string) {
+    const scene = gameData.value.scenes[sourceId]
+    if (!scene) return
+    if (!scene.choices) scene.choices = []
+    scene.choices.push({
+      text: '新选项',
+      targetScene: '',
+    })
+    gameData.value.scenes = { ...gameData.value.scenes }
+  }
+
+  function updateChoice(sourceId: string, index: number, partial: Partial<Choice>) {
+    const scene = gameData.value.scenes[sourceId]
+    if (!scene?.choices) return
+    Object.assign(scene.choices[index], partial)
+    gameData.value.scenes = { ...gameData.value.scenes }
+  }
+
+  function deleteChoice(sourceId: string, index: number) {
+    const scene = gameData.value.scenes[sourceId]
+    if (!scene?.choices) return
+    scene.choices.splice(index, 1)
+    gameData.value.scenes = { ...gameData.value.scenes }
+  }
+
+  function newSceneData(): EditorNode {
+    return {
+      id: '',
+      label: '',
+      videoUrl: '',
+      subtitleUrl: '',
+      choices: [],
+      nextScene: '',
+      onEnter: [],
+      qte: null,
+    }
+  }
+
+  return {
+    gameData, selectedNodeId, selectedNode, sceneList, startSceneId,
+    loadJSON, exportJSON, addScene, deleteScene, updateScene,
+    addChoice, updateChoice, deleteChoice,
+    newSceneData, generateId,
+  }
+}
diff --git a/editor/index.html b/editor/index.html
new file mode 100644
index 0000000..f120f6e
--- /dev/null
+++ b/editor/index.html
@@ -0,0 +1,12 @@
+<!DOCTYPE html>
+<html lang="zh-CN">
+  <head>
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
+    <title>剧情编辑器 — 交互式电影游戏</title>
+  </head>
+  <body>
+    <div id="editor-app"></div>
+    <script type="module" src="/editor/main.ts"></script>
+  </body>
+</html>
diff --git a/editor/main.ts b/editor/main.ts
new file mode 100644
index 0000000..4aaa1b5
--- /dev/null
+++ b/editor/main.ts
@@ -0,0 +1,7 @@
+import { createApp } from 'vue'
+import { createPinia } from 'pinia'
+import EditorApp from './App.vue'
+
+const app = createApp(EditorApp)
+app.use(createPinia())
+app.mount('#editor-app')
diff --git a/package-lock.json b/package-lock.json
index 38bc4da..1227e2b 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -8,6 +8,9 @@
       "name": "moviegame",
       "version": "0.1.0",
       "dependencies": {
+        "@vue-flow/background": "^1.3.2",
+        "@vue-flow/controls": "^1.1.3",
+        "@vue-flow/core": "^1.48.2",
         "dexie": "^4.4.3",
         "pinia": "^2.1.0",
         "vue": "^3.4.0"
@@ -765,6 +768,11 @@
       "integrity": "sha512-GhdPgy1el4/ImP05X05Uw4cw2/M93BCUmnEvWZNStlCzEKME4Fkk+YpoA5OiHNQmoS7Cafb8Xa3Pya8m1Qrzeg==",
       "dev": true
     },
+    "node_modules/@types/web-bluetooth": {
+      "version": "0.0.20",
+      "resolved": "https://registry.npmjs.org/@types/web-bluetooth/-/web-bluetooth-0.0.20.tgz",
+      "integrity": "sha512-g9gZnnXVq7gM7v3tJCWV/qw7w+KeOlSHAhgF9RytFyifW6AF61hdT2ucrYhPq9hLs5JIryeupHV3qGk95dH9ow=="
+    },
     "node_modules/@vitejs/plugin-vue": {
       "version": "5.2.4",
       "resolved": "https://registry.npmjs.org/@vitejs/plugin-vue/-/plugin-vue-5.2.4.tgz",
@@ -804,6 +812,39 @@
         "vscode-uri": "^3.0.8"
       }
     },
+    "node_modules/@vue-flow/background": {
+      "version": "1.3.2",
+      "resolved": "https://registry.npmjs.org/@vue-flow/background/-/background-1.3.2.tgz",
+      "integrity": "sha512-eJPhDcLj1wEo45bBoqTXw1uhl0yK2RaQGnEINqvvBsAFKh/camHJd5NPmOdS1w+M9lggc9igUewxaEd3iCQX2w==",
+      "peerDependencies": {
+        "@vue-flow/core": "^1.23.0",
+        "vue": "^3.3.0"
+      }
+    },
+    "node_modules/@vue-flow/controls": {
+      "version": "1.1.3",
+      "resolved": "https://registry.npmjs.org/@vue-flow/controls/-/controls-1.1.3.tgz",
+      "integrity": "sha512-XCf+G+jCvaWURdFlZmOjifZGw3XMhN5hHlfMGkWh9xot+9nH9gdTZtn+ldIJKtarg3B21iyHU8JjKDhYcB6JMw==",
+      "peerDependencies": {
+        "@vue-flow/core": "^1.23.0",
+        "vue": "^3.3.0"
+      }
+    },
+    "node_modules/@vue-flow/core": {
+      "version": "1.48.2",
+      "resolved": "https://registry.npmjs.org/@vue-flow/core/-/core-1.48.2.tgz",
+      "integrity": "sha512-raxhgKWE+G/mcEvXJjGFUDYW9rAI3GOtiHR3ZkNpwBWuIaCC1EYiBmKGwJOoNzVFgwO7COgErnK7i08i287AFA==",
+      "dependencies": {
+        "@vueuse/core": "^10.5.0",
+        "d3-drag": "^3.0.0",
+        "d3-interpolate": "^3.0.1",
+        "d3-selection": "^3.0.0",
+        "d3-zoom": "^3.0.0"
+      },
+      "peerDependencies": {
+        "vue": "^3.3.0"
+      }
+    },
     "node_modules/@vue/compiler-core": {
       "version": "3.5.35",
       "resolved": "https://registry.npmjs.org/@vue/compiler-core/-/compiler-core-3.5.35.tgz",
@@ -934,6 +975,39 @@
       "resolved": "https://registry.npmjs.org/@vue/shared/-/shared-3.5.35.tgz",
       "integrity": "sha512-zSbjL7gRXwks2ZQLRGCajBtBXEOXW9Ddhn/HvSdrGkE2dqGnumzW8XtusRrxrE9LvqtiqDXQ+A60Hp6mvdYxfA=="
     },
+    "node_modules/@vueuse/core": {
+      "version": "10.11.1",
+      "resolved": "https://registry.npmjs.org/@vueuse/core/-/core-10.11.1.tgz",
+      "integrity": "sha512-guoy26JQktXPcz+0n3GukWIy/JDNKti9v6VEMu6kV2sYBsWuGiTU8OWdg+ADfUbHg3/3DlqySDe7JmdHrktiww==",
+      "dependencies": {
+        "@types/web-bluetooth": "^0.0.20",
+        "@vueuse/metadata": "10.11.1",
+        "@vueuse/shared": "10.11.1",
+        "vue-demi": ">=0.14.8"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/antfu"
+      }
+    },
+    "node_modules/@vueuse/metadata": {
+      "version": "10.11.1",
+      "resolved": "https://registry.npmjs.org/@vueuse/metadata/-/metadata-10.11.1.tgz",
+      "integrity": "sha512-IGa5FXd003Ug1qAZmyE8wF3sJ81xGLSqTqtQ6jaVfkeZ4i5kS2mwQF61yhVqojRnenVew5PldLyRgvdl4YYuSw==",
+      "funding": {
+        "url": "https://github.com/sponsors/antfu"
+      }
+    },
+    "node_modules/@vueuse/shared": {
+      "version": "10.11.1",
+      "resolved": "https://registry.npmjs.org/@vueuse/shared/-/shared-10.11.1.tgz",
+      "integrity": "sha512-LHpC8711VFZlDaYUXEBbFBCQ7GS3dVU9mjOhhMhXP6txTV4EhYQg/KGnQuvt/sPAtoUKq7VVUnL6mVtFoL42sA==",
+      "dependencies": {
+        "vue-demi": ">=0.14.8"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/antfu"
+      }
+    },
     "node_modules/alien-signals": {
       "version": "1.0.13",
       "resolved": "https://registry.npmjs.org/alien-signals/-/alien-signals-1.0.13.tgz",
@@ -960,6 +1034,102 @@
       "resolved": "https://registry.npmjs.org/csstype/-/csstype-3.2.3.tgz",
       "integrity": "sha512-z1HGKcYy2xA8AGQfwrn0PAy+PB7X/GSj3UVJW9qKyn43xWa+gl5nXmU4qqLMRzWVLFC8KusUX8T/0kCiOYpAIQ=="
     },
+    "node_modules/d3-color": {
+      "version": "3.1.0",
+      "resolved": "https://registry.npmjs.org/d3-color/-/d3-color-3.1.0.tgz",
+      "integrity": "sha512-zg/chbXyeBtMQ1LbD/WSoW2DpC3I0mpmPdW+ynRTj/x2DAWYrIY7qeZIHidozwV24m4iavr15lNwIwLxRmOxhA==",
+      "engines": {
+        "node": ">=12"
+      }
+    },
+    "node_modules/d3-dispatch": {
+      "version": "3.0.1",
+      "resolved": "https://registry.npmjs.org/d3-dispatch/-/d3-dispatch-3.0.1.tgz",
+      "integrity": "sha512-rzUyPU/S7rwUflMyLc1ETDeBj0NRuHKKAcvukozwhshr6g6c5d8zh4c2gQjY2bZ0dXeGLWc1PF174P2tVvKhfg==",
+      "engines": {
+        "node": ">=12"
+      }
+    },
+    "node_modules/d3-drag": {
+      "version": "3.0.0",
+      "resolved": "https://registry.npmjs.org/d3-drag/-/d3-drag-3.0.0.tgz",
+      "integrity": "sha512-pWbUJLdETVA8lQNJecMxoXfH6x+mO2UQo8rSmZ+QqxcbyA3hfeprFgIT//HW2nlHChWeIIMwS2Fq+gEARkhTkg==",
+      "dependencies": {
+        "d3-dispatch": "1 - 3",
+        "d3-selection": "3"
+      },
+      "engines": {
+        "node": ">=12"
+      }
+    },
+    "node_modules/d3-ease": {
+      "version": "3.0.1",
+      "resolved": "https://registry.npmjs.org/d3-ease/-/d3-ease-3.0.1.tgz",
+      "integrity": "sha512-wR/XK3D3XcLIZwpbvQwQ5fK+8Ykds1ip7A2Txe0yxncXSdq1L9skcG7blcedkOX+ZcgxGAmLX1FrRGbADwzi0w==",
+      "engines": {
+        "node": ">=12"
+      }
+    },
+    "node_modules/d3-interpolate": {
+      "version": "3.0.1",
+      "resolved": "https://registry.npmjs.org/d3-interpolate/-/d3-interpolate-3.0.1.tgz",
+      "integrity": "sha512-3bYs1rOD33uo8aqJfKP3JWPAibgw8Zm2+L9vBKEHJ2Rg+viTR7o5Mmv5mZcieN+FRYaAOWX5SJATX6k1PWz72g==",
+      "dependencies": {
+        "d3-color": "1 - 3"
+      },
+      "engines": {
+        "node": ">=12"
+      }
+    },
+    "node_modules/d3-selection": {
+      "version": "3.0.0",
+      "resolved": "https://registry.npmjs.org/d3-selection/-/d3-selection-3.0.0.tgz",
+      "integrity": "sha512-fmTRWbNMmsmWq6xJV8D19U/gw/bwrHfNXxrIN+HfZgnzqTHp9jOmKMhsTUjXOJnZOdZY9Q28y4yebKzqDKlxlQ==",
+      "engines": {
+        "node": ">=12"
+      }
+    },
+    "node_modules/d3-timer": {
+      "version": "3.0.1",
+      "resolved": "https://registry.npmjs.org/d3-timer/-/d3-timer-3.0.1.tgz",
+      "integrity": "sha512-ndfJ/JxxMd3nw31uyKoY2naivF+r29V+Lc0svZxe1JvvIRmi8hUsrMvdOwgS1o6uBHmiz91geQ0ylPP0aj1VUA==",
+      "engines": {
+        "node": ">=12"
+      }
+    },
+    "node_modules/d3-transition": {
+      "version": "3.0.1",
+      "resolved": "https://registry.npmjs.org/d3-transition/-/d3-transition-3.0.1.tgz",
+      "integrity": "sha512-ApKvfjsSR6tg06xrL434C0WydLr7JewBB3V+/39RMHsaXTOG0zmt/OAXeng5M5LBm0ojmxJrpomQVZ1aPvBL4w==",
+      "dependencies": {
+        "d3-color": "1 - 3",
+        "d3-dispatch": "1 - 3",
+        "d3-ease": "1 - 3",
+        "d3-interpolate": "1 - 3",
+        "d3-timer": "1 - 3"
+      },
+      "engines": {
+        "node": ">=12"
+      },
+      "peerDependencies": {
+        "d3-selection": "2 - 3"
+      }
+    },
+    "node_modules/d3-zoom": {
+      "version": "3.0.0",
+      "resolved": "https://registry.npmjs.org/d3-zoom/-/d3-zoom-3.0.0.tgz",
+      "integrity": "sha512-b8AmV3kfQaqWAuacbPuNbL6vahnOJflOhexLzMMNLga62+/nh0JzvJ0aO/5a5MVgUFGS7Hu1P9P03o3fJkDCyw==",
+      "dependencies": {
+        "d3-dispatch": "1 - 3",
+        "d3-drag": "2 - 3",
+        "d3-interpolate": "1 - 3",
+        "d3-selection": "2 - 3",
+        "d3-transition": "2 - 3"
+      },
+      "engines": {
+        "node": ">=12"
+      }
+    },
     "node_modules/de-indent": {
       "version": "1.0.2",
       "resolved": "https://registry.npmjs.org/de-indent/-/de-indent-1.0.2.tgz",
diff --git a/package.json b/package.json
index e44f8d7..a7292d2 100644
--- a/package.json
+++ b/package.json
@@ -9,6 +9,9 @@
     "preview": "vite preview"
   },
   "dependencies": {
+    "@vue-flow/background": "^1.3.2",
+    "@vue-flow/controls": "^1.1.3",
+    "@vue-flow/core": "^1.48.2",
     "dexie": "^4.4.3",
     "pinia": "^2.1.0",
     "vue": "^3.4.0"
diff --git a/vite.config.ts b/vite.config.ts
index 837c3f8..820aa25 100644
--- a/vite.config.ts
+++ b/vite.config.ts
@@ -10,4 +10,12 @@ export default defineConfig({
       '@engine': resolve(__dirname, 'engine'),
     },
   },
+  build: {
+    rollupOptions: {
+      input: {
+        main: resolve(__dirname, 'index.html'),
+        editor: resolve(__dirname, 'editor/index.html'),
+      },
+    },
+  },
 })