diff --git a/.memory/worklog.json b/.memory/worklog.json
index 264ff27..b3696f2 100644
--- a/.memory/worklog.json
+++ b/.memory/worklog.json
@@ -293,6 +293,13 @@
       "message": "auto-save 2026-05-12 19:58 (+1, ~4)",
       "hash": "375494e",
       "files_changed": 5
+    },
+    {
+      "ts": "2026-05-12T20:04:48+08:00",
+      "type": "commit",
+      "message": "auto-save 2026-05-12 20:04 (~3)",
+      "hash": "ca0d6f1",
+      "files_changed": 3
     }
   ]
 }
diff --git a/web/app/page.tsx b/web/app/page.tsx
index 6c7b389..1c3f471 100644
--- a/web/app/page.tsx
+++ b/web/app/page.tsx
@@ -57,12 +57,42 @@ const EDGES_RAW: Array<[string, string]> = [
 
 export default function Home() {
   const { resolvedTheme } = useTheme()
-  const [job, setJob] = useState<Job | null>(null)
+  const [jobs, setJobs] = useState<Job[]>([])
+  const [activeJobId, setActiveJobId] = useState<string | null>(null)
+  const job = useMemo(() => jobs.find((j) => j.id === activeJobId) ?? null, [jobs, activeJobId])
   const [submitting, setSubmitting] = useState(false)
   const [analyzing, setAnalyzing] = useState(false)
   const [selectedFrames, setSelectedFrames] = useState<Set<number>>(new Set())
   const [expandedFrame, setExpandedFrame] = useState<number | null>(null)
   const [videoLightboxOpen, setVideoLightboxOpen] = useState(false)
+
+  // 把 setJob(prev=>...) 翻译成 setJobs 里更新当前 active
+  const setJob = useCallback((updater: Job | ((prev: Job | null) => Job | null) | null) => {
+    setJobs((prev) => {
+      const current = prev.find((j) => j.id === activeJobId) ?? null
+      const next = typeof updater === "function" ? (updater as (p: Job | null) => Job | null)(current) : updater
+      if (!next) return prev
+      const idx = prev.findIndex((j) => j.id === next.id)
+      if (idx < 0) {
+        setActiveJobId(next.id)
+        return [...prev, next]
+      }
+      const arr = [...prev]
+      arr[idx] = next
+      return arr
+    })
+  }, [activeJobId])
+
+  // 新增 job + 设为 active
+  const addJob = useCallback((j: Job) => {
+    setJobs((prev) => [...prev.filter((x) => x.id !== j.id), j])
+    setActiveJobId(j.id)
+  }, [])
+
+  const handleSwitchJob = useCallback((id: string) => {
+    setActiveJobId(id)
+    setSelectedFrames(new Set())
+  }, [])
   const pollRef = useRef<ReturnType<typeof setInterval> | null>(null)
 
   const handleSubmit = useCallback(async (url: string) => {
@@ -70,14 +100,14 @@ export default function Home() {
     setSelectedFrames(new Set())
     try {
       const created = await createJob(url)
-      setJob(created)
+      addJob(created)
       toast.success(`已创建任务 ${created.id.slice(0, 8)}`)
     } catch (e) {
       toast.error("提交失败：" + (e instanceof Error ? e.message : String(e)))
     } finally {
       setSubmitting(false)
     }
-  }, [])
+  }, [addJob])
 
   const handleUpload = useCallback(async (file: File) => {
     setSubmitting(true)
@@ -85,14 +115,14 @@ export default function Home() {
     try {
       toast.info(`上传中：${file.name} (${(file.size / 1024 / 1024).toFixed(1)} MB)`)
       const created = await uploadJob(file)
-      setJob(created)
+      addJob(created)
       toast.success(`已上传 ${created.id.slice(0, 8)}`)
     } catch (e) {
       toast.error("上传失败：" + (e instanceof Error ? e.message : String(e)))
     } finally {
       setSubmitting(false)
     }
-  }, [])
+  }, [addJob])
 
   const handleAnalyze = useCallback(async () => {
     if (!job) return
@@ -130,23 +160,29 @@ export default function Home() {
     })
   }, [])
 
-  // URL ?job=xxx 自动恢复 job state
+  // URL ?job=xxx,yyy 自动恢复多个 job
   useEffect(() => {
     const params = new URLSearchParams(window.location.search)
-    const id = params.get("job")
-    if (id && !job) {
-      getJob(id).then(setJob).catch(() => toast.error(`找不到 job ${id}`))
-    }
+    const idsStr = params.get("job") ?? ""
+    const ids = idsStr.split(",").filter(Boolean)
+    if (ids.length === 0) return
+    Promise.all(ids.map((id) => getJob(id).catch(() => null))).then((results) => {
+      const valid = results.filter((j): j is Job => !!j)
+      if (valid.length > 0) {
+        setJobs(valid)
+        setActiveJobId(valid[valid.length - 1].id)
+      }
+    })
   // eslint-disable-next-line react-hooks/exhaustive-deps
   }, [])
 
-  // 写回 URL（不刷新页面）
+  // 写回 URL（所有 jobs id 用 , 分隔）
   useEffect(() => {
-    if (!job) return
+    if (jobs.length === 0) return
     const url = new URL(window.location.href)
-    url.searchParams.set("job", job.id)
+    url.searchParams.set("job", jobs.map((j) => j.id).join(","))
     window.history.replaceState({}, "", url.toString())
-  }, [job?.id])
+  }, [jobs.length])
 
   // 轮询 Job（downloaded / transcribed / failed 三态停止）
   const prevStatusRef = useRef<string | null>(null)
@@ -174,6 +210,8 @@ export default function Home() {
 
   const nodeData: NodeData = useMemo(() => ({
     job,
+    jobs,
+    activeJobId,
     submitting,
     analyzing,
     selectedFrames,
@@ -184,7 +222,8 @@ export default function Home() {
     onExpandFrame: setExpandedFrame,
     onAddManualFrame: handleAddManualFrame,
     onOpenVideoLightbox: () => setVideoLightboxOpen(true),
-  }), [job, submitting, analyzing, selectedFrames, handleSubmit, handleUpload, handleAnalyze, handleToggleFrame, handleAddManualFrame])
+    onSwitchJob: handleSwitchJob,
+  }), [job, jobs, activeJobId, submitting, analyzing, selectedFrames, handleSubmit, handleUpload, handleAnalyze, handleToggleFrame, handleAddManualFrame, handleSwitchJob])
 
   // 用 useNodesState 让 ReactFlow 自己管位置（避免轮询时重置 drag）
   const [nodes, setNodes, onNodesChange] = useNodesState<Node>(
diff --git a/web/components/nodes/index.tsx b/web/components/nodes/index.tsx
index f2bf7a2..587d138 100644
--- a/web/components/nodes/index.tsx
+++ b/web/components/nodes/index.tsx
@@ -9,7 +9,9 @@ import { NodeShell, type NodeStatus, type NodeKind } from "./node-shell"
 import { type Job, frameUrl, videoUrl } from "@/lib/api"
 
 export interface NodeData {
-  job: Job | null
+  job: Job | null            // 当前 active job
+  jobs: Job[]                // 所有 job 列表
+  activeJobId: string | null
   submitting: boolean
   analyzing: boolean
   selectedFrames: Set<number>
@@ -20,6 +22,7 @@ export interface NodeData {
   onExpandFrame: (idx: number) => void
   onAddManualFrame: (t: number) => void
   onOpenVideoLightbox: () => void
+  onSwitchJob: (id: string) => void
 }
 
 /* ---- 状态映射工具 ---- */
@@ -79,37 +82,62 @@ export function InputNode({ data, selected }: NodeProps<{ data: NodeData }> | an
 
   return (
     <div className="relative" style={{ width: 320 }}>
-      {/* 视频缩略图浮于节点上方 — 跟关键帧缩略图同尺寸（小），点击稍微放大可选帧 */}
-      {hasVideo && job && !videoExpanded && (
-        <div className="absolute left-0 right-0 flex justify-center" style={{ bottom: "calc(100% + 12px)" }}>
+      {/* 多视频缩略图浮条 — 每个 job 一张 + 末尾「+」按钮再上传 */}
+      {!videoExpanded && d.jobs.length > 0 && (
+        <div className="absolute left-0 right-0 flex justify-center items-end gap-1.5 flex-wrap" style={{ bottom: "calc(100% + 12px)" }}>
+          {d.jobs.map((j) => {
+            const isActive = j.id === d.activeJobId
+            const ready = !!j.video_url
+            return (
+              <button
+                key={j.id}
+                type="button"
+                onClick={(e) => {
+                  e.stopPropagation()
+                  if (isActive && ready) setVideoExpanded(true)
+                  else d.onSwitchJob(j.id)
+                }}
+                title={ready ? `${j.width}×${j.height} · ${j.duration.toFixed(1)}s · ${isActive ? "点击展开" : "点击切换"}` : "下载中…"}
+                className={`group relative rounded-md overflow-hidden border shadow-lg transition hover:-translate-y-0.5 ${
+                  isActive ? "border-violet-400 ring-2 ring-violet-400/60" : "border-white/25"
+                }`}
+                style={{ width: 80, aspectRatio: ready ? `${j.width}/${j.height}` : "9/16" }}
+              >
+                {ready ? (
+                  <video
+                    src={videoUrl(j.id)}
+                    muted
+                    loop
+                    playsInline
+                    preload="metadata"
+                    className="block w-full h-full object-cover bg-black"
+                    onMouseEnter={(e) => (e.target as HTMLVideoElement).play().catch(() => {})}
+                    onMouseLeave={(e) => {
+                      const v = e.target as HTMLVideoElement
+                      v.pause()
+                      v.currentTime = 0
+                    }}
+                  />
+                ) : (
+                  <div className="w-full h-full bg-black/60 flex items-center justify-center">
+                    <Loader2 className="h-4 w-4 animate-spin text-white/60" />
+                  </div>
+                )}
+                <div className="absolute bottom-0.5 right-0.5 bg-black/70 text-white text-[9px] font-mono px-1 py-0.5 rounded">
+                  {ready ? `${j.duration.toFixed(1)}s` : "…"}
+                </div>
+              </button>
+            )
+          })}
+          {/* + 再加一个 */}
           <button
             type="button"
-            onClick={(e) => { e.stopPropagation(); setVideoExpanded(true) }}
-            title="点击展开 · 可拖时间轴选帧"
-            className="group relative rounded-md overflow-hidden border border-white/30 shadow-lg hover:-translate-y-0.5 transition"
-            style={{ width: 80 }}
+            onClick={(e) => { e.stopPropagation(); fileRef.current?.click() }}
+            title="再上传一个视频"
+            className="rounded-md border border-dashed border-white/30 hover:border-white/50 bg-white/[0.04] hover:bg-white/[0.08] inline-flex items-center justify-center text-white/60 hover:text-white transition"
+            style={{ width: 36, height: 64 }}
           >
-            <video
-              src={videoUrl(job.id)}
-              muted
-              loop
-              playsInline
-              preload="metadata"
-              className="block w-full bg-black"
-              style={{ aspectRatio: `${job.width}/${job.height}` }}
-              onMouseEnter={(e) => {
-                const v = e.target as HTMLVideoElement
-                v.play().catch(() => {})
-              }}
-              onMouseLeave={(e) => {
-                const v = e.target as HTMLVideoElement
-                v.pause()
-                v.currentTime = 0
-              }}
-            />
-            <div className="absolute bottom-0.5 right-0.5 bg-black/70 text-white text-[9px] font-mono px-1 py-0.5 rounded">
-              {job.duration.toFixed(1)}s
-            </div>
+            <Plus className="h-4 w-4" />
           </button>
         </div>
       )}