diff --git a/.memory/worklog.json b/.memory/worklog.json
index 1ce08fc..1e71c23 100644
--- a/.memory/worklog.json
+++ b/.memory/worklog.json
@@ -2979,6 +2979,25 @@
       "type": "session-heartbeat",
       "message": "Claude 会话活跃 · 最近命令：claude · 2 项未提交变更 · 最近提交：auto-save 2026-05-14 02:52 (~4)",
       "files_changed": 2
+    },
+    {
+      "ts": "2026-05-14T02:58:36+08:00",
+      "type": "commit",
+      "message": "auto-save 2026-05-14 02:58 (~6)",
+      "hash": "bdbaf75",
+      "files_changed": 6
+    },
+    {
+      "ts": "2026-05-13T18:58:48Z",
+      "type": "session-heartbeat",
+      "message": "Codex 会话活跃 · 最近命令：codex · 1 项未提交变更 · 最近提交：auto-save 2026-05-14 02:58 (~6)",
+      "files_changed": 1
+    },
+    {
+      "ts": "2026-05-13T19:03:11Z",
+      "type": "session-heartbeat",
+      "message": "Claude 会话活跃 · 最近命令：claude · 3 项未提交变更 · 最近提交：auto-save 2026-05-14 02:58 (~6)",
+      "files_changed": 3
     }
   ]
 }
diff --git a/docs/source-analysis.html b/docs/source-analysis.html
index 37c7a00..c1c980b 100644
--- a/docs/source-analysis.html
+++ b/docs/source-analysis.html
@@ -816,6 +816,18 @@ api/main.py
         <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>2026-05-14 · 删除确认改为页面内分层交互</h3>
+              <span class="tag violet">Canvas</span>
+              <span class="tag blue">UX</span>
+            </header>
+            <div class="body">
+              <p><strong>问题：</strong>浏览器原生删除确认会突然出现在页面顶部，和无限画布的操作上下文割裂；图片类素材如果每次删除都确认，也会拖慢快速整理素材的节奏。</p>
+              <p><strong>改动：</strong>输入视频和生成视频任务删除改为画布内确认层，背景轻遮罩并支持点击背景 / Esc 取消；关键帧和元素提取图属于可快速整理的图片素材，点击删除后直接执行。</p>
+              <p><strong>影响：</strong><code>web/components/nodes/index.tsx</code>、<code>docs/source-analysis.html</code>。视频删除仍走既有删除接口；图片删除仍走原有回调，只调整确认策略。</p>
+            </div>
+          </article>
           <article class="change">
             <header>
               <h3>2026-05-14 · 输入视频缩略图支持删除整个 job</h3>
diff --git a/web/components/nodes/index.tsx b/web/components/nodes/index.tsx
index caec67a..65fc598 100644
--- a/web/components/nodes/index.tsx
+++ b/web/components/nodes/index.tsx
@@ -311,6 +311,73 @@ function FloatingThumbnailStrip({
   )
 }
 
+function DeleteConfirmDialog({
+  title,
+  description,
+  confirmLabel = "删除",
+  onCancel,
+  onConfirm,
+}: {
+  title: string
+  description: string
+  confirmLabel?: string
+  onCancel: () => void
+  onConfirm: () => void
+}) {
+  useEffect(() => {
+    const onKeyDown = (e: KeyboardEvent) => {
+      if (e.key === "Escape") onCancel()
+    }
+    document.addEventListener("keydown", onKeyDown)
+    return () => document.removeEventListener("keydown", onKeyDown)
+  }, [onCancel])
+
+  if (typeof document === "undefined") return null
+
+  return createPortal(
+    <div
+      className="fixed inset-0 z-[1000] flex items-center justify-center bg-black/55 px-4 backdrop-blur-sm"
+      onMouseDown={(e) => {
+        e.stopPropagation()
+        if (e.target === e.currentTarget) onCancel()
+      }}
+    >
+      <div
+        role="dialog"
+        aria-modal="true"
+        aria-label={title}
+        className="w-full max-w-sm rounded-xl border border-white/14 bg-zinc-950/95 p-4 text-white shadow-2xl"
+        onMouseDown={(e) => e.stopPropagation()}
+      >
+        <div className="mb-2 flex items-center gap-2">
+          <div className="flex h-8 w-8 items-center justify-center rounded-full bg-rose-500/16 text-rose-200">
+            <Trash2 className="h-4 w-4" />
+          </div>
+          <div className="text-sm font-semibold">{title}</div>
+        </div>
+        <p className="text-xs leading-5 text-white/68">{description}</p>
+        <div className="mt-4 flex justify-end gap-2">
+          <button
+            type="button"
+            onClick={(e) => { e.stopPropagation(); onCancel() }}
+            className="rounded-md border border-white/12 bg-white/[0.04] px-3 py-1.5 text-xs font-medium text-white/78 transition hover:bg-white/[0.08] hover:text-white"
+          >
+            取消
+          </button>
+          <button
+            type="button"
+            onClick={(e) => { e.stopPropagation(); onConfirm() }}
+            className="rounded-md bg-rose-500 px-3 py-1.5 text-xs font-semibold text-white shadow-lg shadow-rose-950/35 transition hover:bg-rose-400"
+          >
+            {confirmLabel}
+          </button>
+        </div>
+      </div>
+    </div>,
+    document.body,
+  )
+}
+
 /* ============================================================
    1. InputNode — TK 链接 / 上传
    ============================================================ */
@@ -322,6 +389,7 @@ export function InputNode({ data, selected }: NodeProps<{ data: NodeData }> | an
   const [videoExpanded, setVideoExpanded] = useState(false)
   const [hoverPreviewJob, setHoverPreviewJob] = useState<PreviewAnchor<string> | null>(null)
   const [pinnedPreviewJob, setPinnedPreviewJob] = useState<PreviewAnchor<string> | null>(null)
+  const [deleteJobTarget, setDeleteJobTarget] = useState<Job | null>(null)
   const rootRef = useRef<HTMLDivElement>(null)
   const fileRef = useRef<HTMLInputElement>(null)
   const videoRef = useRef<HTMLVideoElement>(null)
@@ -417,9 +485,7 @@ export function InputNode({ data, selected }: NodeProps<{ data: NodeData }> | an
                     type="button"
                     onClick={(e) => {
                       e.stopPropagation()
-                      if (confirm(`删除视频任务 ${j.id.slice(0, 8)}？源视频、关键帧、元素提取图和生成视频都会一并删除。`)) {
-                        d.onDeleteJob?.(j.id)
-                      }
+                      setDeleteJobTarget(j)
                     }}
                     title="删除这个输入视频"
                     className="absolute right-1.5 top-1.5 z-[70] inline-flex h-7 w-7 items-center justify-center rounded-full bg-rose-500/95 text-white shadow-lg backdrop-blur transition hover:scale-110 hover:bg-rose-400"
@@ -433,6 +499,20 @@ export function InputNode({ data, selected }: NodeProps<{ data: NodeData }> | an
         </FloatingThumbnailStrip>
       )}
 
+      {deleteJobTarget && (
+        <DeleteConfirmDialog
+          title="删除这个输入视频？"
+          description={`会同时删除 ${deleteJobTarget.id.slice(0, 8)} 的源视频、关键帧、元素提取图、生成视频和本地任务目录。`}
+          confirmLabel="删除视频"
+          onCancel={() => setDeleteJobTarget(null)}
+          onConfirm={() => {
+            const id = deleteJobTarget.id
+            setDeleteJobTarget(null)
+            d.onDeleteJob?.(id)
+          }}
+        />
+      )}
+
       {(() => {
         const anchor = pinnedPreviewJob ?? hoverPreviewJob
         if (!anchor || videoExpanded) return null
@@ -714,6 +794,7 @@ export function VisualLabNode({ data, selected }: any) {
 
   const [hoverPreview, setHoverPreview] = useState<PreviewAnchor<string> | null>(null)
   const [pinnedPreview, setPinnedPreview] = useState<PreviewAnchor<string> | null>(null)
+  const [deleteVideoTarget, setDeleteVideoTarget] = useState<{ id: string; label: string; caption: string } | null>(null)
   const rootRef = useRef<HTMLDivElement>(null)
 
   const previews: VisualPreview[] = [
@@ -885,7 +966,7 @@ export function VisualLabNode({ data, selected }: any) {
                     type="button"
                     onClick={(e) => {
                       e.stopPropagation()
-                      if (confirm(`删除${p.label}？相关清洗 / 抠图 / 生成图都会一并清除。`)) d.onDeleteFrame?.(p.frameIdx)
+                      d.onDeleteFrame?.(p.frameIdx)
                     }}
                     title="删除该关键帧"
                     className="absolute top-1.5 right-1.5 z-[70] inline-flex h-7 w-7 items-center justify-center rounded-full bg-rose-500/95 text-white shadow-lg backdrop-blur transition hover:scale-110 hover:bg-rose-400"
@@ -899,9 +980,7 @@ export function VisualLabNode({ data, selected }: any) {
                     type="button"
                     onClick={(e) => {
                       e.stopPropagation()
-                      if (confirm(`删除元素提取图「${p.label}」？该 cutout 文件会被移除。`)) {
-                        d.onDeleteCutout?.(p.frameIdx, p.elementId, p.cutoutId)
-                      }
+                      d.onDeleteCutout?.(p.frameIdx, p.elementId, p.cutoutId)
                     }}
                     title="删除该提取图"
                     className="absolute top-1.5 right-1.5 z-[70] inline-flex h-7 w-7 items-center justify-center rounded-full bg-rose-500/95 text-white shadow-lg backdrop-blur transition hover:scale-110 hover:bg-rose-400"
@@ -915,7 +994,7 @@ export function VisualLabNode({ data, selected }: any) {
                     type="button"
                     onClick={(e) => {
                       e.stopPropagation()
-                      d.onDeleteVideo?.(p.videoId)
+                      setDeleteVideoTarget({ id: p.videoId, label: p.label, caption: p.caption })
                     }}
                     className="absolute right-1.5 top-1.5 z-[70] inline-flex h-7 w-7 items-center justify-center rounded-full bg-rose-500/95 text-white shadow-lg backdrop-blur transition hover:scale-110 hover:bg-rose-400"
                     title="删除这个视频任务"
@@ -929,6 +1008,20 @@ export function VisualLabNode({ data, selected }: any) {
         </FloatingThumbnailStrip>
       )}
 
+      {deleteVideoTarget && (
+        <DeleteConfirmDialog
+          title="删除这个视频任务？"
+          description={`会删除${deleteVideoTarget.label}的生成任务和本地视频文件。${deleteVideoTarget.caption}`}
+          confirmLabel="删除视频任务"
+          onCancel={() => setDeleteVideoTarget(null)}
+          onConfirm={() => {
+            const id = deleteVideoTarget.id
+            setDeleteVideoTarget(null)
+            d.onDeleteVideo?.(id)
+          }}
+        />
+      )}
+
       {(() => {
         const anchor = pinnedPreview ?? hoverPreview
         if (!anchor) return null
@@ -1107,9 +1200,7 @@ export function KeyframeNode({ data, selected }: any) {
                 <button
                   onClick={(e) => {
                     e.stopPropagation()
-                    if (confirm(`删除分镜 ${f.index + 1}（${f.timestamp.toFixed(1)}s）？相关清洗 / 抠图 / 生成图都会一并清除。`)) {
-                      d.onDeleteFrame?.(f.index)
-                    }
+                    d.onDeleteFrame?.(f.index)
                   }}
                   title="删除该关键帧"
                   className="absolute top-1.5 right-1.5 z-[70] inline-flex h-7 w-7 items-center justify-center rounded-full bg-rose-500/95 text-white shadow-lg backdrop-blur transition hover:scale-110 hover:bg-rose-400"
@@ -1608,9 +1699,7 @@ export function StoryboardNode({ data, selected }: any) {
                   <button
                     onClick={(e) => {
                       e.stopPropagation()
-                      if (confirm(`删除元素提取图「${p.name}」？该 cutout 文件会被移除。`)) {
-                        d.onDeleteCutout?.(p.frameIdx, p.elementId, p.cid)
-                      }
+                      d.onDeleteCutout?.(p.frameIdx, p.elementId, p.cid)
                     }}
                     title="删除该提取图"
                     className="absolute top-1.5 right-1.5 z-[70] inline-flex h-7 w-7 items-center justify-center rounded-full bg-rose-500/95 text-white shadow-lg backdrop-blur transition hover:scale-110 hover:bg-rose-400"
@@ -1684,6 +1773,7 @@ export function VideoGenNode({ data, selected }: any) {
   const videos = d.job?.generated_videos ?? []
   const rootRef = useRef<HTMLDivElement>(null)
   const [hoverPreviewVideo, setHoverPreviewVideo] = useState<PreviewAnchor<string> | null>(null)
+  const [deleteVideoTarget, setDeleteVideoTarget] = useState<{ id: string; label: string; caption: string } | null>(null)
   const running = videos.some((v) => v.status === "queued" || v.status === "in_progress")
   const completed = videos.filter((v) => v.status === "completed" && v.url)
   const failed = videos.some((v) => v.status === "failed")
@@ -1774,7 +1864,11 @@ export function VideoGenNode({ data, selected }: any) {
                 type="button"
                 onClick={(e) => {
                   e.stopPropagation()
-                  d.onDeleteVideo?.(v.id)
+                  setDeleteVideoTarget({
+                    id: v.id,
+                    label: `视频 ${i + 1}`,
+                    caption: `分镜 ${v.frame_idx + 1} · ${modelLabel(v.model)} · ${v.status}`,
+                  })
                 }}
                 className="absolute right-1.5 top-1.5 z-[70] inline-flex h-7 w-7 items-center justify-center rounded-full bg-rose-500/95 text-white shadow-lg backdrop-blur transition hover:scale-110 hover:bg-rose-400"
                 title="删除这个视频任务"
@@ -1785,6 +1879,19 @@ export function VideoGenNode({ data, selected }: any) {
           )})}
         </FloatingThumbnailStrip>
       )}
+      {deleteVideoTarget && (
+        <DeleteConfirmDialog
+          title="删除这个视频任务？"
+          description={`会删除${deleteVideoTarget.label}的生成任务和本地视频文件。${deleteVideoTarget.caption}`}
+          confirmLabel="删除视频任务"
+          onCancel={() => setDeleteVideoTarget(null)}
+          onConfirm={() => {
+            const id = deleteVideoTarget.id
+            setDeleteVideoTarget(null)
+            d.onDeleteVideo?.(id)
+          }}
+        />
+      )}
       {(() => {
         if (!hoverPreviewVideo) return null
         const item = videos.find((v) => v.id === hoverPreviewVideo.id)