diff --git a/.memory/worklog.json b/.memory/worklog.json
index dae9ae3..ad6bae4 100644
--- a/.memory/worklog.json
+++ b/.memory/worklog.json
@@ -1,12 +1,5 @@
 {
   "entries": [
-    {
-      "files_changed": 1,
-      "hash": "4a22ca0",
-      "message": "docs: record width-first layout deployment",
-      "ts": "2026-05-20T19:01:07+08:00",
-      "type": "commit"
-    },
     {
       "files_changed": 3,
       "message": "Codex 会话活跃 · 最近命令：codex · 分支 main · 3 项未提交变更 · 最近提交：docs: record width-first layout deployment",
@@ -3192,6 +3185,13 @@
       "message": "auto-save 2026-05-27 14:42 (~2)",
       "hash": "a699899",
       "files_changed": 2
+    },
+    {
+      "ts": "2026-05-27T14:47:45+08:00",
+      "type": "commit",
+      "message": "auto-save 2026-05-27 14:47 (~2)",
+      "hash": "22398c1",
+      "files_changed": 2
     }
   ]
 }
diff --git a/.playwright-cli/page-2026-05-27T06-52-23-524Z.yml b/.playwright-cli/page-2026-05-27T06-52-23-524Z.yml
new file mode 100644
index 0000000..b5f318d
--- /dev/null
+++ b/.playwright-cli/page-2026-05-27T06-52-23-524Z.yml
@@ -0,0 +1,29 @@
+- generic [active] [ref=e1]:
+  - main [ref=e2]:
+    - iframe [ref=e3]:
+      - generic [active] [ref=f1e1]:
+        - button "Settings":
+          - img
+    - generic [ref=e4]:
+      - generic:
+        - generic:
+          - generic:
+            - generic:
+              - generic:
+                - img
+      - generic [ref=e5]:
+        - generic [ref=e6]:
+          - generic [ref=e8]:
+            - img [ref=e9]
+            - textbox [ref=e12]
+          - generic [ref=e14]:
+            - img [ref=e15]
+            - textbox [ref=e19]
+            - button [ref=e20]:
+              - img [ref=e21]
+        - generic [ref=e24] [cursor=pointer]:
+          - checkbox "保持登录" [checked] [ref=e25]
+          - generic [ref=e26]: 保持登录
+        - button [ref=e27]:
+          - img [ref=e28]
+  - alert [ref=e30]
\ No newline at end of file
diff --git a/.playwright-cli/page-2026-05-27T06-52-55-049Z.yml b/.playwright-cli/page-2026-05-27T06-52-55-049Z.yml
new file mode 100644
index 0000000..e69de29
diff --git a/docs/source-analysis.html b/docs/source-analysis.html
index bef9e9a..8e19c9b 100644
--- a/docs/source-analysis.html
+++ b/docs/source-analysis.html
@@ -1277,6 +1277,18 @@ ProductRefStateItem {
         <h2>变更记录</h2>
         <p>这个记录不是 git log 的替代品。它记录“产品理解发生了什么变化、影响了哪些源码、你以后描述需求时该怎么说”。后续每次改功能都要补一条。</p>
         <div class="changelog">
+          <article class="change">
+            <header>
+              <h3>2026-05-27 · 视频完成后自动回填画布节点</h3>
+              <span class="tag violet">Canvas</span>
+              <span class="tag amber">Video</span>
+            </header>
+            <div class="body">
+              <p><strong>问题：</strong>画布视频任务提交后，完成状态主要依赖单个 <code>VideoNode.vue</code> 组件内部长轮询。如果组件轮询中断、页面后台挂起或节点未稳定挂载，服务端已经生成好的视频不会立刻写回当前画布，用户需要刷新页面后才看到结果。</p>
+              <p><strong>改动：</strong><code>web/canvas-app/src/hooks/useApi.js</code> 新增 <code>readVideoTask</code>，用于按 <code>skg:&lt;jobId&gt;:&lt;videoId&gt;</code> 读取服务端当前视频状态；<code>web/canvas-app/src/views/Canvas.vue</code> 增加页面级待完成视频同步器，每 5 秒扫描带 <code>taskId</code> 且没有 <code>url</code> 的视频节点，完成后自动写入视频 URL、清掉 <code>taskId</code> 并保存画布；<code>VideoNode.vue</code> 只负责展示节点状态，不再承担任务同步。</p>
+              <p><strong>影响：</strong>视频排队、生成中和完成状态会在当前打开的画布里自动更新；刷新页面仍可恢复未完成任务，但不再是看到视频结果的必要步骤。</p>
+            </div>
+          </article>
           <article class="change">
             <header>
               <h3>2026-05-27 · 修复刷新后画布记录被本地缓存覆盖</h3>
diff --git a/web/canvas-app/src/components/nodes/VideoNode.vue b/web/canvas-app/src/components/nodes/VideoNode.vue
index f94e7a9..ba7be18 100644
--- a/web/canvas-app/src/components/nodes/VideoNode.vue
+++ b/web/canvas-app/src/components/nodes/VideoNode.vue
@@ -140,12 +140,11 @@
  * Video node component | 视频节点组件
  * Displays and manages video content
  */
-import { ref, nextTick, watch, onMounted } from 'vue'
+import { ref, nextTick } from 'vue'
 import { Handle, Position, useVueFlow } from '@vue-flow/core'
 import { NIcon, NSpin } from 'naive-ui'
 import { TrashOutline, ExpandOutline, VideocamOutline, CopyOutline, CloseCircleOutline, DownloadOutline, EyeOutline, CreateOutline } from '@vicons/ionicons5'
 import { updateNode, removeNode, duplicateNode, addNode, addEdge, nodes } from '../../stores/canvas'
-import { useVideoGeneration } from '../../hooks/useApi'
 import NodeHandleMenu from './NodeHandleMenu.vue'
 
 const props = defineProps({
@@ -156,9 +155,6 @@ const props = defineProps({
 // Vue Flow instance
 const { updateNodeInternals } = useVueFlow()
 
-// Get pollVideoTask from useVideoGeneration | 从 useVideoGeneration 获取轮询函数
-const { pollVideoTask } = useVideoGeneration()
-
 // Hover state | 悬浮状态
 const showActions = ref(false)
 const showHandleMenu = ref(false)
@@ -173,61 +169,6 @@ const operations = [
   { type: 'videoConfig', label: '生视频', icon: VideocamOutline }
 ]
 
-// Polling state | 轮询状态
-const isPolling = ref(false)
-
-// Watch for taskId changes and start polling | 监听 taskId 变化并开始轮询
-watch(() => props.data?.taskId, (taskId) => {
-  if (taskId && !props.data?.url && !isPolling.value) {
-    startPolling(taskId)
-  }
-})
-
-// 页面刷新后恢复轮询 | Resume polling after page refresh
-onMounted(() => {
-  const { taskId, url } = props.data || {}
-  if (taskId && !url && !isPolling.value) {
-    startPolling(taskId)
-  }
-})
-
-// Start polling for video result | 开始轮询获取视频结果
-const startPolling = async (taskId) => {
-  if (isPolling.value) return
-
-  isPolling.value = true
-
-  try {
-    const result = await pollVideoTask(taskId, (attempt, percentage) => {
-      // 更新进度
-      updateNode(props.id, {
-        progress: percentage,
-        attempt
-      })
-    })
-    // 轮询成功，更新视频节点
-    updateNode(props.id, {
-      url: result.url,
-      loading: false,
-      progress: 100,
-      label: '视频生成',
-      taskId: null  // 清除 taskId
-    })
-    window.$message?.success('视频生成成功')
-  } catch (err) {
-    // 轮询失败
-    updateNode(props.id, {
-      loading: false,
-      error: err.message || '生成失败',
-      label: '生成失败',
-      taskId: null  // 清除 taskId
-    })
-    window.$message?.error(err.message || '视频生成失败')
-  } finally {
-    isPolling.value = false
-  }
-}
-
 // Handle menu select | 处理菜单选择
 const handleSelect = (item) => {
   const currentNode = nodes.value.find(n => n.id === props.id)
diff --git a/web/canvas-app/src/hooks/index.js b/web/canvas-app/src/hooks/index.js
index e3f21e6..277ddfb 100644
--- a/web/canvas-app/src/hooks/index.js
+++ b/web/canvas-app/src/hooks/index.js
@@ -18,6 +18,7 @@ export {
   useChat,
   useImageGeneration,
   useVideoGeneration,
+  readVideoTask,
   useApi
 } from './useApi'
 
diff --git a/web/canvas-app/src/hooks/useApi.js b/web/canvas-app/src/hooks/useApi.js
index e9480f0..fe2d79f 100644
--- a/web/canvas-app/src/hooks/useApi.js
+++ b/web/canvas-app/src/hooks/useApi.js
@@ -91,6 +91,7 @@ const parseVideoTaskId = (pollTaskId) => {
 
 export const readVideoTask = async (pollTaskId) => {
   const { jobId, videoId } = parseVideoTaskId(pollTaskId)
+  // Canvas-level video sync reads one snapshot at a time instead of owning a long node-local poll.
   const job = await requestJson(`/jobs/${jobId}`, { method: 'GET' })
   const item = (job.generated_videos || []).find(v => v.id === videoId)
   if (!item) {
diff --git a/web/canvas-app/src/views/Canvas.vue b/web/canvas-app/src/views/Canvas.vue
index 70702e3..9d597f0 100644
--- a/web/canvas-app/src/views/Canvas.vue
+++ b/web/canvas-app/src/views/Canvas.vue
@@ -299,7 +299,7 @@ import {
 } from '@vicons/ionicons5'
 import { nodes, edges, addNode, addNodes, addEdge, addEdges, updateNode, initSampleData, loadProject, saveProject, clearCanvas, canvasViewport, updateViewport, undo, redo, canUndo, canRedo, manualSaveHistory, startBatchOperation, endBatchOperation } from '../stores/canvas'
 import { loadAllModels } from '../stores/models'
-import { useChat, useWorkflowOrchestrator } from '../hooks'
+import { useChat, useWorkflowOrchestrator, readVideoTask } from '../hooks'
 import { useModelStore } from '../stores/pinia'
 import { projects, initProjectsStore, updateProject, renameProject, currentProject } from '../stores/projects'
 import { myWorkflows, workflowSyncStatus, loadMyWorkflows, saveMyWorkflow, deleteMyWorkflow } from '../stores/workflows'
@@ -436,6 +436,10 @@ const projectName = computed(() => {
 
 const loadingMyWorkflows = computed(() => workflowSyncStatus.value === 'syncing')
 
+const videoTaskSyncing = new Set()
+let videoTaskSyncTimer = null
+let videoTaskSyncToastShown = false
+
 // Project dropdown options | 项目下拉选项
 const projectOptions = [
   { label: '重命名', key: 'rename' },
@@ -631,6 +635,106 @@ const handleDeleteWorkflow = async (workflow) => {
   }
 }
 
+const pendingVideoNodes = () => nodes.value.filter(node =>
+  node.type === 'video' && node.data?.taskId && !node.data?.url
+)
+
+const syncPendingVideoNodes = async () => {
+  const pending = pendingVideoNodes()
+  if (!pending.length) return
+
+  for (const node of pending) {
+    const taskId = node.data?.taskId
+    const syncKey = `${node.id}:${taskId}`
+    if (!taskId || videoTaskSyncing.has(syncKey)) continue
+
+    videoTaskSyncing.add(syncKey)
+    readVideoTask(taskId)
+      .then((snapshot) => {
+        const item = snapshot.video
+        if (item.status === 'completed') {
+          updateNode(node.id, {
+            url: snapshot.url,
+            loading: false,
+            progress: 100,
+            label: '视频生成',
+            taskId: null,
+            error: '',
+            syncError: '',
+            updatedAt: Date.now()
+          })
+          window.$message?.success('视频生成成功，已自动回填到画布')
+          return
+        }
+
+        if (item.status === 'failed') {
+          updateNode(node.id, {
+            loading: false,
+            error: item.error || '视频生成失败',
+            label: '生成失败',
+            taskId: null,
+            queueMessage: '',
+            syncError: '',
+            updatedAt: Date.now()
+          })
+          window.$message?.error(item.error || '视频生成失败')
+          return
+        }
+
+        updateNode(node.id, {
+          loading: true,
+          progress: item.progress || node.data?.progress || 0,
+          queuePosition: item.queue_position || 0,
+          queueSize: item.queue_size || 0,
+          queueMessage: item.queue_message || '',
+          error: '',
+          syncError: '',
+          updatedAt: Date.now()
+        })
+      })
+      .catch((err) => {
+        if (err.terminal) {
+          updateNode(node.id, {
+            loading: false,
+            error: err.message || '视频任务不存在',
+            label: '生成失败',
+            taskId: null,
+            syncError: '',
+            updatedAt: Date.now()
+          })
+          return
+        }
+
+        updateNode(node.id, {
+          loading: true,
+          syncError: err.message || '视频状态同步暂时中断',
+          updatedAt: Date.now()
+        })
+      })
+      .finally(() => {
+        videoTaskSyncing.delete(syncKey)
+      })
+  }
+
+  if (!videoTaskSyncToastShown) {
+    videoTaskSyncToastShown = true
+    window.$message?.info('视频生成中，完成后会自动显示在画布里')
+  }
+}
+
+const startVideoTaskSync = () => {
+  if (videoTaskSyncTimer) return
+  syncPendingVideoNodes()
+  videoTaskSyncTimer = window.setInterval(syncPendingVideoNodes, 5000)
+}
+
+const stopVideoTaskSync = () => {
+  if (!videoTaskSyncTimer) return
+  window.clearInterval(videoTaskSyncTimer)
+  videoTaskSyncTimer = null
+  videoTaskSyncing.clear()
+}
+
 // Handle connection | 处理连接
 const onConnect = (params) => {
   // Check connection types | 检查连接类型
@@ -952,6 +1056,16 @@ watch(showWorkflowPanel, (visible) => {
   }
 })
 
+watch(
+  () => nodes.value
+    .filter(node => node.type === 'video')
+    .map(node => `${node.id}:${node.data?.taskId || ''}:${node.data?.url || ''}`)
+    .join('|'),
+  () => {
+    if (pendingVideoNodes().length) syncPendingVideoNodes()
+  }
+)
+
 // Initialize | 初始化
 onMounted(async () => {
   checkMobile()
@@ -963,6 +1077,7 @@ onMounted(async () => {
   // Load project data | 加载项目数据
   loadProjectById(route.params.id)
   refreshMyWorkflows()
+  startVideoTaskSync()
 
   // Check for initial prompt from home page | 检查来自首页的初始提示词
   const initialPrompt = sessionStorage.getItem('ai-canvas-initial-prompt')
@@ -979,6 +1094,7 @@ onMounted(async () => {
 // Cleanup on unmount | 卸载时清理
 onUnmounted(() => {
   window.removeEventListener('resize', checkMobile)
+  stopVideoTaskSync()
   // Save project before leaving | 离开前保存项目
   saveProject()
 })