diff --git a/.memory/worklog.json b/.memory/worklog.json
index c880a01..08797d8 100644
--- a/.memory/worklog.json
+++ b/.memory/worklog.json
@@ -482,6 +482,13 @@
       "message": "auto-save 2026-05-12 23:38 (~5)",
       "hash": "447f116",
       "files_changed": 5
+    },
+    {
+      "ts": "2026-05-12T23:44:18+08:00",
+      "type": "commit",
+      "message": "auto-save 2026-05-12 23:44 (~2)",
+      "hash": "494d990",
+      "files_changed": 2
     }
   ]
 }
diff --git a/web/components/lightbox.tsx b/web/components/lightbox.tsx
index 6594b50..6ca7935 100644
--- a/web/components/lightbox.tsx
+++ b/web/components/lightbox.tsx
@@ -1,5 +1,6 @@
 "use client"
 import { useEffect, useState } from "react"
+import { createPortal } from "react-dom"
 import { X, ChevronLeft, ChevronRight, Check, Sparkles, Wand2, Loader2, Eye, RefreshCw, Copy } from "lucide-react"
 import { frameUrl, describeFrame, type KeyFrame, type Job } from "@/lib/api"
 import { toast } from "sonner"
@@ -18,6 +19,8 @@ interface Props {
 export function FrameLightbox({ jobId, frames, activeIndex, selected, onClose, onChange, onToggleSelect, onJobUpdate }: Props) {
   const [extractPrompt, setExtractPrompt] = useState("")
   const [describing, setDescribing] = useState(false)
+  const [mounted, setMounted] = useState(false)
+  useEffect(() => setMounted(true), [])
 
   useEffect(() => {
     if (activeIndex === null) return
@@ -37,7 +40,7 @@ export function FrameLightbox({ jobId, frames, activeIndex, selected, onClose, o
     return () => window.removeEventListener("keydown", onKey)
   }, [activeIndex, frames.length, onClose, onChange, onToggleSelect])
 
-  if (activeIndex === null || !frames[activeIndex]) return null
+  if (activeIndex === null || !frames[activeIndex] || !mounted) return null
   const f = frames[activeIndex]
   const isSelected = selected.has(f.index)
   const desc = f.description
@@ -59,68 +62,76 @@ export function FrameLightbox({ jobId, frames, activeIndex, selected, onClose, o
     navigator.clipboard.writeText(text).then(() => toast.success("已复制"))
   }
 
-  return (
+  return createPortal(
     <div
-      className="fixed inset-0 z-[100] bg-black/85 backdrop-blur-sm flex items-center justify-center"
-      onClick={onClose}
+      onClick={(e) => e.stopPropagation()}
+      className="fixed z-[100] rounded-2xl border border-white/15 bg-black/70 backdrop-blur-2xl overflow-hidden flex flex-col"
+      style={{
+        top: 80,
+        right: 16,
+        width: 740,
+        maxHeight: "calc(100vh - 96px)",
+        boxShadow: "0 40px 100px -20px rgba(0,0,0,0.7), 0 0 0 1px rgba(255,255,255,0.05)",
+        animation: "drawer-in 0.24s cubic-bezier(0.32, 0.72, 0, 1)",
+      }}
     >
-      <button
-        onClick={(e) => { e.stopPropagation(); onClose() }}
-        className="absolute top-5 right-5 h-10 w-10 rounded-full bg-white/10 hover:bg-white/20 text-white flex items-center justify-center z-10"
-      >
-        <X className="h-5 w-5" />
-      </button>
-
-      {activeIndex > 0 && (
+      {/* 顶部工具栏 — 切换 / 关闭 */}
+      <div className="flex items-center justify-between px-4 py-2 border-b border-white/10 bg-white/[0.03]">
+        <div className="flex items-center gap-2">
+          <button
+            onClick={(e) => { e.stopPropagation(); if (activeIndex > 0) onChange(activeIndex - 1) }}
+            disabled={activeIndex === 0}
+            className="h-7 w-7 rounded-md bg-white/10 hover:bg-white/20 text-white inline-flex items-center justify-center disabled:opacity-30 disabled:cursor-not-allowed"
+          >
+            <ChevronLeft className="h-4 w-4" />
+          </button>
+          <button
+            onClick={(e) => { e.stopPropagation(); if (activeIndex < frames.length - 1) onChange(activeIndex + 1) }}
+            disabled={activeIndex >= frames.length - 1}
+            className="h-7 w-7 rounded-md bg-white/10 hover:bg-white/20 text-white inline-flex items-center justify-center disabled:opacity-30 disabled:cursor-not-allowed"
+          >
+            <ChevronRight className="h-4 w-4" />
+          </button>
+          <span className="text-[11px] font-mono text-white/70 ml-1">
+            分镜 {String(f.index + 1).padStart(2, "0")} / {String(frames.length).padStart(2, "0")}
+            <span className="mx-1.5 text-white/30">·</span>
+            <span className="text-white/60">{f.timestamp.toFixed(2)}s</span>
+          </span>
+        </div>
         <button
-          onClick={(e) => { e.stopPropagation(); onChange(activeIndex - 1) }}
-          className="absolute left-5 top-1/2 -translate-y-1/2 h-12 w-12 rounded-full bg-white/10 hover:bg-white/20 text-white flex items-center justify-center z-10"
+          onClick={onClose}
+          className="h-7 w-7 rounded-md bg-white/10 hover:bg-white/20 text-white inline-flex items-center justify-center"
         >
-          <ChevronLeft className="h-6 w-6" />
+          <X className="h-4 w-4" />
         </button>
-      )}
-      {activeIndex < frames.length - 1 && (
-        <button
-          onClick={(e) => { e.stopPropagation(); onChange(activeIndex + 1) }}
-          className="absolute right-5 top-1/2 -translate-y-1/2 h-12 w-12 rounded-full bg-white/10 hover:bg-white/20 text-white flex items-center justify-center z-10"
-        >
-          <ChevronRight className="h-6 w-6" />
-        </button>
-      )}
+      </div>
 
-      <div onClick={(e) => e.stopPropagation()} className="flex gap-4 max-w-[92vw] max-h-[92vh] items-start">
+      {/* 主体 — 左大图 + 右识别面板 */}
+      <div className="flex gap-3 p-3 overflow-hidden flex-1 min-h-0">
         {/* 左侧大图 */}
-        <div className="flex flex-col items-center gap-3 flex-shrink-0">
+        <div className="flex flex-col items-center gap-2 flex-shrink-0">
           <img
             src={frameUrl(jobId, f.index)}
             alt={`frame ${f.index}`}
-            className="rounded-xl shadow-2xl object-contain"
-            style={{ maxWidth: "60vw", maxHeight: "80vh" }}
+            className="rounded-lg object-contain"
+            style={{ maxWidth: 320, maxHeight: "70vh" }}
           />
-          <div className="flex items-center gap-3 text-white">
-            <div className="font-mono text-sm tabular-nums text-white/80">
-              {String(f.index + 1).padStart(2, "0")} / {String(frames.length).padStart(2, "0")}
-              <span className="mx-2 text-white/40">·</span>
-              <span className="text-white/60">{f.timestamp.toFixed(2)}s</span>
-            </div>
-            <button
-              onClick={() => onToggleSelect(f.index)}
-              className={`px-4 py-1.5 rounded-lg text-[13px] font-medium inline-flex items-center gap-2 transition ${
-                isSelected
-                  ? "bg-emerald-500 text-white hover:bg-emerald-400"
-                  : "bg-white/10 text-white hover:bg-white/20"
-              }`}
-            >
-              <Check className="h-4 w-4" />
-              {isSelected ? "已选用" : "选用此帧"}
-            </button>
-          </div>
+          <button
+            onClick={() => onToggleSelect(f.index)}
+            className={`w-full px-3 py-1.5 rounded-md text-[12px] font-medium inline-flex items-center justify-center gap-1.5 transition ${
+              isSelected
+                ? "bg-emerald-500 text-white hover:bg-emerald-400"
+                : "bg-white/10 text-white hover:bg-white/20"
+            }`}
+          >
+            <Check className="h-3.5 w-3.5" />
+            {isSelected ? "已选用" : "选用此帧"}
+          </button>
         </div>
 
         {/* 右侧识别面板 */}
         <div
-          className="flex flex-col gap-3 overflow-y-auto rounded-2xl border border-white/15 bg-black/40 backdrop-blur-xl p-4"
-          style={{ width: 360, maxHeight: "80vh" }}
+          className="flex flex-col gap-2.5 overflow-y-auto flex-1 min-h-0"
         >
           {/* 识别到的元素 */}
           <section>
@@ -246,9 +257,10 @@ export function FrameLightbox({ jobId, frames, activeIndex, selected, onClose, o
         </div>
       </div>
 
-      <div className="absolute bottom-3 left-1/2 -translate-x-1/2 text-[10.5px] text-white/40 font-mono">
-        ←/→ 切换 · Space 选用 · ESC 关闭
+      <div className="px-4 py-1.5 text-[10px] text-white/40 font-mono text-center border-t border-white/5 bg-white/[0.02]">
+        ←/→ 切换 · Space 选用 · ESC 关闭 · 可拖侧画布看背后
       </div>
-    </div>
+    </div>,
+    document.body,
   )
 }