feat: add multi-product-to-single-scene batch replacement mode

components/scene-fusion-view.tsx

@@ -27,7 +27,7 @@ import { ScrollArea } from "@/components/ui/scroll-area";
 const fetcher = (url: string) => fetch(url).then((res) => res.json());
 const MAX_BATCH_ITEMS = 10;
 
-type BatchMode = "scene-fission" | "random-bg" | "rmbg" | "enhance" | "watermark";
+type BatchMode = "scene-fission" | "multi-product-scene" | "random-bg" | "rmbg" | "enhance" | "watermark";
 type ItemStatus = "pending" | "processing" | "completed" | "failed";
 
 interface ProcessItem {
@@ -77,6 +77,7 @@ const randomBackgroundStyles = [
 
 const modeOptions: Array<{ id: BatchMode; label: string; description: string; icon: React.ComponentType<{ className?: string }> }> = [
   { id: "scene-fission", label: "裂变场景", description: "1张产品图 + 多张参考图", icon: Layers },
+  { id: "multi-product-scene", label: "多产品替换", description: "10张产品图 + 1张参考图", icon: ImageIcon },
   { id: "random-bg", label: "随机换背景", description: "1张图随机生成多种背景", icon: Wand2 },
   { id: "rmbg", label: "批量抠图", description: "多图同步去背景", icon: Eraser },
   { id: "enhance", label: "批量变清晰", description: "多图同步增强画质", icon: Sparkles },
@@ -87,6 +88,8 @@ function getModeActionLabel(mode: BatchMode, count: number) {
   switch (mode) {
     case "scene-fission":
       return `开始裂变 (${count} 张)`;
+    case "multi-product-scene":
+      return `开始多产品替换 (${count} 张)`;
     case "random-bg":
       return `开始换背景 (${count} 张)`;
     case "rmbg":
@@ -131,6 +134,10 @@ export function SceneFusionView({ onBack, initialProductImage, initialProductNam
   const [productName, setProductName] = useState(initialProductName || "");
 
   const [sceneItems, setSceneItems] = useState<ProcessItem[]>([]);
+  const [multiProductItems, setMultiProductItems] = useState<ProcessItem[]>([]);
+  const [referenceSceneImage, setReferenceSceneImage] = useState<string | null>(null);
+  const [referenceTargetName, setReferenceTargetName] = useState("");
+  const [referenceCustomPrompt, setReferenceCustomPrompt] = useState("");
   const [randomItems, setRandomItems] = useState<ProcessItem[]>([]);
   const [randomCount, setRandomCount] = useState<number>(4);
   const [randomPrompt, setRandomPrompt] = useState("");
@@ -139,20 +146,24 @@ export function SceneFusionView({ onBack, initialProductImage, initialProductNam
 
   const productInputRef = useRef<HTMLInputElement>(null);
   const sceneInputRef = useRef<HTMLInputElement>(null);
+  const multiProductInputRef = useRef<HTMLInputElement>(null);
+  const referenceSceneInputRef = useRef<HTMLInputElement>(null);
   const batchInputRef = useRef<HTMLInputElement>(null);
   const productPreviewObjectUrlRef = useRef<string | null>(null);
 
   const resultItems = useMemo(() => {
     if (mode === "scene-fission") return sceneItems;
+    if (mode === "multi-product-scene") return multiProductItems;
     if (mode === "random-bg") return randomItems;
     return batchItems;
-  }, [batchItems, mode, randomItems, sceneItems]);
+  }, [batchItems, mode, multiProductItems, randomItems, sceneItems]);
 
   const modeCanStart = useMemo(() => {
     if (mode === "scene-fission") return Boolean(productImage) && sceneItems.length > 0;
+    if (mode === "multi-product-scene") return multiProductItems.length > 0 && Boolean(referenceSceneImage);
     if (mode === "random-bg") return Boolean(productImage) && randomCount > 0;
     return batchItems.length > 0;
-  }, [batchItems.length, mode, productImage, randomCount, sceneItems.length]);
+  }, [batchItems.length, mode, multiProductItems.length, productImage, randomCount, referenceSceneImage, sceneItems.length]);
 
   const updateProductPreview = (previewUrl: string | null, isObjectUrl = false) => {
     if (productPreviewObjectUrlRef.current) {
@@ -244,6 +255,54 @@ export function SceneFusionView({ onBack, initialProductImage, initialProductNam
     e.target.value = "";
   };
 
+  const handleMultiProductUpload = (e: React.ChangeEvent<HTMLInputElement>) => {
+    const files = Array.from(e.target.files || []);
+    if (files.length === 0) return;
+    if (multiProductItems.length + files.length > MAX_BATCH_ITEMS) {
+      toast.error(`单次最多上传 ${MAX_BATCH_ITEMS} 张产品图`);
+      return;
+    }
+
+    files.forEach((file) => {
+      if (file.size > 50 * 1024 * 1024) {
+        toast.error(`图片 ${file.name} 大小不能超过 50MB`);
+        return;
+      }
+      const reader = new FileReader();
+      reader.onload = (event) => {
+        const image = event.target?.result as string;
+        setMultiProductItems((prev) => [
+          ...prev,
+          {
+            id: Math.random().toString(36).slice(2, 10),
+            image,
+            status: "pending",
+          },
+        ]);
+      };
+      reader.readAsDataURL(file);
+    });
+
+    e.target.value = "";
+  };
+
+  const handleReferenceSceneUpload = (e: React.ChangeEvent<HTMLInputElement>) => {
+    const file = e.target.files?.[0];
+    if (!file) return;
+    if (file.size > 50 * 1024 * 1024) {
+      toast.error("图片大小不能超过 50MB");
+      return;
+    }
+
+    const reader = new FileReader();
+    reader.onload = (event) => {
+      const image = event.target?.result as string;
+      setReferenceSceneImage(image);
+    };
+    reader.readAsDataURL(file);
+    e.target.value = "";
+  };
+
   const handleBatchUpload = (e: React.ChangeEvent<HTMLInputElement>) => {
     const files = Array.from(e.target.files || []);
     if (files.length === 0) return;
@@ -283,6 +342,10 @@ export function SceneFusionView({ onBack, initialProductImage, initialProductNam
     setSceneItems((prev) => prev.filter((item) => item.id !== id));
   };
 
+  const removeMultiProductItem = (id: string) => {
+    setMultiProductItems((prev) => prev.filter((item) => item.id !== id));
+  };
+
   const removeBatchItem = (id: string) => {
     setBatchItems((prev) => prev.filter((item) => item.id !== id));
   };
@@ -431,6 +494,180 @@ export function SceneFusionView({ onBack, initialProductImage, initialProductNam
     }
   };
 
+  const runSingleSceneFusionRequest = async (params: {
+    productImageInput: string;
+    sceneImageInput: string;
+    requestId: string;
+    targetName?: string;
+    customPrompt?: string;
+  }) => {
+    const response = await fetch("/api/scene-fusion", {
+      method: "POST",
+      headers: { "Content-Type": "application/json" },
+      body: JSON.stringify({
+        productImage: params.productImageInput,
+        productName: productName || undefined,
+        aspectRatio,
+        imageSize,
+        scenes: [
+          {
+            id: params.requestId,
+            image: params.sceneImageInput,
+            targetName: params.targetName || undefined,
+            customPrompt: params.customPrompt || undefined,
+          },
+        ],
+      }),
+    });
+
+    if (!response.ok) {
+      const errorData = await response.json().catch(() => null);
+      throw new Error(errorData?.error || "处理失败");
+    }
+
+    const reader = response.body?.getReader();
+    if (!reader) {
+      throw new Error("读取流式响应失败");
+    }
+
+    const decoder = new TextDecoder();
+    let buffer = "";
+
+    while (true) {
+      const { done, value } = await reader.read();
+      if (done) break;
+
+      buffer += decoder.decode(value, { stream: true });
+      const lines = buffer.split("\n");
+      buffer = lines.pop() || "";
+
+      for (const line of lines) {
+        if (!line.trim()) continue;
+        const msg = JSON.parse(line) as {
+          type: string;
+          data?: {
+            id: string;
+            status: "completed" | "failed";
+            result?: string;
+            originalUrl?: string;
+            error?: string;
+          };
+          error?: string;
+        };
+
+        if (msg.type === "result" && msg.data?.id === params.requestId) {
+          if (msg.data.status === "completed") {
+            return {
+              result: msg.data.result || params.sceneImageInput,
+              originalUrl: msg.data.originalUrl || msg.data.result || params.sceneImageInput,
+            };
+          }
+          throw new Error(msg.data.error || "生成失败");
+        }
+
+        if (msg.type === "error") {
+          throw new Error(msg.error || "处理失败");
+        }
+      }
+    }
+
+    throw new Error("未收到生成结果");
+  };
+
+  const runMultiProductSceneMode = async () => {
+    if (multiProductItems.length === 0) {
+      toast.error("请先上传产品图");
+      return;
+    }
+    if (!referenceSceneImage) {
+      toast.error("请先上传参考图");
+      return;
+    }
+    if (config?.enabled === false) {
+      toast.error("批量处理功能已被管理员禁用");
+      return;
+    }
+
+    let itemsToProcess = multiProductItems.filter((item) => item.status === "pending" || item.status === "failed");
+    if (itemsToProcess.length === 0) {
+      itemsToProcess = multiProductItems;
+    }
+
+    if (itemsToProcess.length > MAX_BATCH_ITEMS) {
+      toast.error(`单次最多处理 ${MAX_BATCH_ITEMS} 张产品图`);
+      return;
+    }
+
+    setIsProcessing(true);
+    setMultiProductItems((prev) =>
+      prev.map((item) =>
+        itemsToProcess.some((target) => target.id === item.id)
+          ? { ...item, status: "processing", error: undefined }
+          : item
+      )
+    );
+
+    const queue = [...itemsToProcess];
+    const workerCount = Math.max(1, Math.min(2, queue.length));
+    let successCount = 0;
+    let failedCount = 0;
+
+    const workers = Array.from({ length: workerCount }, async () => {
+      while (queue.length > 0) {
+        const current = queue.shift();
+        if (!current) break;
+        const requestId = `multi-product-${current.id}-${Date.now()}`;
+
+        try {
+          const result = await runSingleSceneFusionRequest({
+            productImageInput: current.image,
+            sceneImageInput: referenceSceneImage,
+            requestId,
+            targetName: referenceTargetName || undefined,
+            customPrompt: referenceCustomPrompt || undefined,
+          });
+          successCount += 1;
+          setMultiProductItems((prev) =>
+            prev.map((item) =>
+              item.id === current.id
+                ? {
+                    ...item,
+                    status: "completed",
+                    result: result.result,
+                    originalUrl: result.originalUrl,
+                    error: undefined,
+                  }
+                : item
+            )
+          );
+        } catch (error) {
+          const message = error instanceof Error ? error.message : "处理失败";
+          failedCount += 1;
+          setMultiProductItems((prev) =>
+            prev.map((item) =>
+              item.id === current.id
+                ? {
+                    ...item,
+                    status: "failed",
+                    error: message,
+                  }
+                : item
+            )
+          );
+        }
+      }
+    });
+
+    await Promise.all(workers);
+    setIsProcessing(false);
+
+    if (successCount > 0 && failedCount === 0) {
+      toast.success(`多产品替换完成：${successCount} 张`);
+    } else {
+      toast.warning(`多产品替换完成：${successCount} 成功，${failedCount} 失败`);
+    }
+  };
+
   const buildRandomItems = () => {
     const count = Math.max(1, Math.min(MAX_BATCH_ITEMS, randomCount));
     const stylePool = [...randomBackgroundStyles].sort(() => Math.random() - 0.5);
@@ -626,6 +863,11 @@ export function SceneFusionView({ onBack, initialProductImage, initialProductNam
       return;
     }
 
+    if (mode === "multi-product-scene") {
+      await runMultiProductSceneMode();
+      return;
+    }
+
     await runBatchImageMode();
   };
 
@@ -659,6 +901,20 @@ export function SceneFusionView({ onBack, initialProductImage, initialProductNam
       return;
     }
 
+    if (mode === "multi-product-scene") {
+      if (!referenceSceneImage) {
+        toast.error("请先上传参考图");
+        return;
+      }
+      setMultiProductItems((prev) =>
+        prev.map((productItem) =>
+          productItem.id === item.id ? { ...productItem, status: "pending", error: undefined } : productItem
+        )
+      );
+      await runMultiProductSceneMode();
+      return;
+    }
+
     setBatchItems((prev) =>
       prev.map((batchItem) =>
         batchItem.id === item.id ? { ...batchItem, status: "pending", error: undefined } : batchItem
@@ -754,109 +1010,109 @@ export function SceneFusionView({ onBack, initialProductImage, initialProductNam
               </div>
 
               {(mode === "scene-fission" || mode === "random-bg") && (
-                <>
-                  <div className="space-y-2">
-                    <div className="flex items-center justify-between">
-                      <Label className="text-base font-medium">主图 A (必须)</Label>
-                      {(productImagePreview || productImage) && (
-                        <Button
-                          variant="ghost"
-                          size="sm"
-                          className="h-6 text-xs text-muted-foreground hover:text-destructive"
-                          onClick={clearProductImage}
-                        >
-                          清除
-                        </Button>
-                      )}
-                    </div>
-
-                    <div
-                      className={cn(
-                        "border-2 border-dashed rounded-lg p-4 transition-colors text-center cursor-pointer relative group",
-                        productImagePreview || productImage
-                          ? "border-primary/50 bg-primary/5"
-                          : "border-muted-foreground/25 hover:border-primary/50 hover:bg-muted/50"
-                      )}
-                      onClick={() => !(productImagePreview || productImage) && productInputRef.current?.click()}
-                    >
-                      <input
-                        type="file"
-                        ref={productInputRef}
-                        className="hidden"
-                        accept="image/png,image/jpeg,image/webp"
-                        onChange={handleProductUpload}
-                      />
-                      {productImagePreview || productImage ? (
-                        <div className="relative aspect-square w-full max-w-[200px] mx-auto">
-                          <img
-                            src={productImagePreview || productImage || ""}
-                            alt="主图"
-                            className="w-full h-full object-contain rounded-md"
-                          />
-                        </div>
-                      ) : (
-                        <div className="py-8 flex flex-col items-center gap-2 text-muted-foreground">
-                          <Upload className="w-8 h-8 opacity-50" />
-                          <span className="text-sm">点击上传主图</span>
-                        </div>
-                      )}
-                    </div>
-
+                <div className="space-y-2">
+                  <div className="flex items-center justify-between">
+                    <Label className="text-base font-medium">主图 A (必须)</Label>
                     {(productImagePreview || productImage) && (
-                      <Input
-                        placeholder="主图名称（如：沙发、椅子）"
-                        value={productName}
-                        onChange={(e) => setProductName(e.target.value)}
-                        className="h-9 text-sm"
-                        disabled={isProcessing}
-                      />
+                      <Button
+                        variant="ghost"
+                        size="sm"
+                        className="h-6 text-xs text-muted-foreground hover:text-destructive"
+                        onClick={clearProductImage}
+                      >
+                        清除
+                      </Button>
                     )}
                   </div>
 
-                  <div className="space-y-3">
-                    <Label className="text-base font-medium">输出设置</Label>
-                    <div className="space-y-1.5">
-                      <label className="text-xs text-muted-foreground">图片比例</label>
-                      <div className="flex flex-wrap gap-1.5">
-                        {aspectRatioOptions.map((option) => (
-                          <button
-                            key={option.value}
-                            onClick={() => setAspectRatio(option.value)}
-                            disabled={isProcessing}
-                            className={cn(
-                              "px-2.5 py-1 text-xs rounded-md border transition-colors",
-                              aspectRatio === option.value
-                                ? "bg-primary text-primary-foreground border-primary"
-                                : "bg-background hover:bg-muted border-input"
-                            )}
-                          >
-                            {option.label}
-                          </button>
-                        ))}
+                  <div
+                    className={cn(
+                      "border-2 border-dashed rounded-lg p-4 transition-colors text-center cursor-pointer relative group",
+                      productImagePreview || productImage
+                        ? "border-primary/50 bg-primary/5"
+                        : "border-muted-foreground/25 hover:border-primary/50 hover:bg-muted/50"
+                    )}
+                    onClick={() => !(productImagePreview || productImage) && productInputRef.current?.click()}
+                  >
+                    <input
+                      type="file"
+                      ref={productInputRef}
+                      className="hidden"
+                      accept="image/png,image/jpeg,image/webp"
+                      onChange={handleProductUpload}
+                    />
+                    {productImagePreview || productImage ? (
+                      <div className="relative aspect-square w-full max-w-[200px] mx-auto">
+                        <img
+                          src={productImagePreview || productImage || ""}
+                          alt="主图"
+                          className="w-full h-full object-contain rounded-md"
+                        />
                       </div>
-                    </div>
-                    <div className="space-y-1.5">
-                      <label className="text-xs text-muted-foreground">输出分辨率</label>
-                      <div className="flex flex-wrap gap-1.5">
-                        {imageSizeOptions.map((option) => (
-                          <button
-                            key={option.value}
-                            onClick={() => setImageSize(option.value)}
-                            disabled={isProcessing}
-                            className={cn(
-                              "px-2.5 py-1 text-xs rounded-md border transition-colors",
-                              imageSize === option.value
-                                ? "bg-primary text-primary-foreground border-primary"
-                                : "bg-background hover:bg-muted border-input"
-                            )}
-                          >
-                            {option.label}
-                          </button>
-                        ))}
+                    ) : (
+                      <div className="py-8 flex flex-col items-center gap-2 text-muted-foreground">
+                        <Upload className="w-8 h-8 opacity-50" />
+                        <span className="text-sm">点击上传主图</span>
                       </div>
+                    )}
+                  </div>
+
+                  {(productImagePreview || productImage) && (
+                    <Input
+                      placeholder="主图名称（如：沙发、椅子）"
+                      value={productName}
+                      onChange={(e) => setProductName(e.target.value)}
+                      className="h-9 text-sm"
+                      disabled={isProcessing}
+                    />
+                  )}
+                </div>
+              )}
+
+              {(mode === "scene-fission" || mode === "random-bg" || mode === "multi-product-scene") && (
+                <div className="space-y-3">
+                  <Label className="text-base font-medium">输出设置</Label>
+                  <div className="space-y-1.5">
+                    <label className="text-xs text-muted-foreground">图片比例</label>
+                    <div className="flex flex-wrap gap-1.5">
+                      {aspectRatioOptions.map((option) => (
+                        <button
+                          key={option.value}
+                          onClick={() => setAspectRatio(option.value)}
+                          disabled={isProcessing}
+                          className={cn(
+                            "px-2.5 py-1 text-xs rounded-md border transition-colors",
+                            aspectRatio === option.value
+                              ? "bg-primary text-primary-foreground border-primary"
+                              : "bg-background hover:bg-muted border-input"
+                          )}
+                        >
+                          {option.label}
+                        </button>
+                      ))}
                     </div>
                   </div>
-                </>
+                  <div className="space-y-1.5">
+                    <label className="text-xs text-muted-foreground">输出分辨率</label>
+                    <div className="flex flex-wrap gap-1.5">
+                      {imageSizeOptions.map((option) => (
+                        <button
+                          key={option.value}
+                          onClick={() => setImageSize(option.value)}
+                          disabled={isProcessing}
+                          className={cn(
+                            "px-2.5 py-1 text-xs rounded-md border transition-colors",
+                            imageSize === option.value
+                              ? "bg-primary text-primary-foreground border-primary"
+                              : "bg-background hover:bg-muted border-input"
+                          )}
+                        >
+                          {option.label}
+                        </button>
+                      ))}
+                    </div>
+                  </div>
+                </div>
               )}
 
               {mode === "scene-fission" && (
@@ -937,6 +1193,134 @@ export function SceneFusionView({ onBack, initialProductImage, initialProductNam
                 </div>
               )}
 
+              {mode === "multi-product-scene" && (
+                <div className="space-y-4">
+                  <div className="space-y-2">
+                    <div className="flex items-center justify-between">
+                      <Label className="text-base font-medium">产品图列表 ({multiProductItems.length}/{MAX_BATCH_ITEMS})</Label>
+                      <Button
+                        variant="outline"
+                        size="sm"
+                        className="h-7 text-xs gap-1"
+                        onClick={() => multiProductInputRef.current?.click()}
+                        disabled={multiProductItems.length >= MAX_BATCH_ITEMS || isProcessing}
+                      >
+                        <Plus className="w-3 h-3" /> 批量添加
+                      </Button>
+                      <input
+                        type="file"
+                        ref={multiProductInputRef}
+                        className="hidden"
+                        multiple
+                        accept="image/png,image/jpeg,image/webp"
+                        onChange={handleMultiProductUpload}
+                      />
+                    </div>
+                    {multiProductItems.length === 0 ? (
+                      <div
+                        className="border-2 border-dashed border-muted-foreground/25 rounded-lg p-8 text-center cursor-pointer hover:bg-muted/50 transition-colors"
+                        onClick={() => multiProductInputRef.current?.click()}
+                      >
+                        <ImageIcon className="w-8 h-8 mx-auto opacity-20 mb-2" />
+                        <p className="text-sm text-muted-foreground">点击上传产品图（可多张）</p>
+                        <p className="text-xs text-muted-foreground/60 mt-1">最多 {MAX_BATCH_ITEMS} 张</p>
+                      </div>
+                    ) : (
+                      <div className="space-y-3">
+                        {multiProductItems.map((item, index) => (
+                          <div key={item.id} className="border rounded-lg p-3 bg-background relative group">
+                            <div className="flex gap-3 items-center">
+                              <div className="w-20 h-20 shrink-0 bg-muted rounded-md overflow-hidden border">
+                                <img src={item.image} alt={`产品 ${index + 1}`} className="w-full h-full object-cover" />
+                              </div>
+                              <div className="flex-1">
+                                <div className="text-xs font-medium text-muted-foreground">产品 {index + 1}</div>
+                                <div className="text-xs text-muted-foreground mt-1">
+                                  状态：{item.status === "pending" ? "等待" : item.status === "processing" ? "处理中" : item.status === "completed" ? "完成" : "失败"}
+                                </div>
+                                {item.error && <div className="text-xs text-destructive mt-1 line-clamp-2">{item.error}</div>}
+                              </div>
+                              {!isProcessing && (
+                                <Button
+                                  variant="ghost"
+                                  size="icon"
+                                  className="h-7 w-7 text-muted-foreground hover:text-destructive"
+                                  onClick={() => removeMultiProductItem(item.id)}
+                                >
+                                  <Trash2 className="w-3.5 h-3.5" />
+                                </Button>
+                              )}
+                            </div>
+                          </div>
+                        ))}
+                      </div>
+                    )}
+                  </div>
+
+                  <div className="space-y-2">
+                    <div className="flex items-center justify-between">
+                      <Label className="text-base font-medium">参考图 B（统一替换目标）</Label>
+                      {referenceSceneImage && (
+                        <Button
+                          variant="ghost"
+                          size="sm"
+                          className="h-6 text-xs text-muted-foreground hover:text-destructive"
+                          onClick={() => setReferenceSceneImage(null)}
+                        >
+                          清除
+                        </Button>
+                      )}
+                    </div>
+                    <div
+                      className={cn(
+                        "border-2 border-dashed rounded-lg p-4 transition-colors text-center cursor-pointer relative group",
+                        referenceSceneImage
+                          ? "border-primary/50 bg-primary/5"
+                          : "border-muted-foreground/25 hover:border-primary/50 hover:bg-muted/50"
+                      )}
+                      onClick={() => !referenceSceneImage && referenceSceneInputRef.current?.click()}
+                    >
+                      <input
+                        type="file"
+                        ref={referenceSceneInputRef}
+                        className="hidden"
+                        accept="image/png,image/jpeg,image/webp"
+                        onChange={handleReferenceSceneUpload}
+                      />
+                      {referenceSceneImage ? (
+                        <div className="relative aspect-square w-full max-w-[220px] mx-auto">
+                          <img
+                            src={referenceSceneImage}
+                            alt="参考图"
+                            className="w-full h-full object-cover rounded-md"
+                          />
+                        </div>
+                      ) : (
+                        <div className="py-8 flex flex-col items-center gap-2 text-muted-foreground">
+                          <Upload className="w-8 h-8 opacity-50" />
+                          <span className="text-sm">点击上传参考图</span>
+                        </div>
+                      )}
+                    </div>
+
+                    <Input
+                      placeholder="被替换物体（可选，如：椅子、花瓶）"
+                      value={referenceTargetName}
+                      onChange={(e) => setReferenceTargetName(e.target.value)}
+                      className="h-8 text-xs"
+                      disabled={isProcessing}
+                    />
+                    <Input
+                      placeholder="补充要求（可选）"
+                      value={referenceCustomPrompt}
+                      onChange={(e) => setReferenceCustomPrompt(e.target.value)}
+                      className="h-8 text-xs"
+                      disabled={isProcessing}
+                    />
+                  </div>
+                </div>
+              )}
+
               {mode === "random-bg" && (
                 <div className="space-y-3">
                   <Label className="text-base font-medium">随机背景参数</Label>