feat: add detail reference stitch workflow

components/agents/AgentDetailReferenceStitchDialog.tsx

@@ -0,0 +1,630 @@
+"use client";
+
+import {
+  useCallback,
+  useEffect,
+  useMemo,
+  useRef,
+  useState,
+  type PointerEvent as ReactPointerEvent,
+} from "react";
+import { Loader2, Plus, RotateCcw, Scissors, Trash2 } from "lucide-react";
+import { toast } from "sonner";
+import { Button } from "@/components/ui/button";
+import {
+  Dialog,
+  DialogContent,
+  DialogDescription,
+  DialogHeader,
+  DialogTitle,
+} from "@/components/ui/dialog";
+import { fetchUploadWithRetry } from "@/lib/client/upload-with-retry";
+import { buildImageProxyUrl } from "@/lib/image-delivery";
+import { cn } from "@/lib/utils";
+import type { AgentDetailReplacementReferenceItem } from "@/types/agent";
+
+const MERGED_IMAGE_MAX_WIDTH = 1600;
+const MIN_SLICE_HEIGHT = 120;
+const MERGED_IMAGE_MAX_PIXELS = 42_000_000;
+
+type LoadedReferenceImage = {
+  card: AgentDetailReplacementReferenceItem;
+  image: HTMLImageElement;
+  width: number;
+  height: number;
+  scaledHeight: number;
+};
+
+type MergedSnapshot = {
+  width: number;
+  height: number;
+  defaultCutLines: number[];
+  loadedImages: LoadedReferenceImage[];
+};
+
+function clamp(value: number, min: number, max: number) {
+  return Math.max(min, Math.min(max, value));
+}
+
+function loadImage(url: string) {
+  return new Promise<HTMLImageElement>((resolve, reject) => {
+    const image = new Image();
+    image.crossOrigin = "anonymous";
+    image.onload = () => resolve(image);
+    image.onerror = () => reject(new Error("图片加载失败"));
+    image.src = buildImageProxyUrl(url, {
+      width: MERGED_IMAGE_MAX_WIDTH,
+      quality: 92,
+      format: "png",
+    });
+  });
+}
+
+function buildMergedSnapshot(images: LoadedReferenceImage[]) {
+  const baseWidth = Math.max(
+    1,
+    Math.min(
+      MERGED_IMAGE_MAX_WIDTH,
+      Math.max(...images.map((item) => item.width), 1)
+    )
+  );
+  const baseTotalHeight = images.reduce((total, item) => {
+    return total + Math.max(1, Math.round((baseWidth / Math.max(item.width, 1)) * item.height));
+  }, 0);
+  const basePixels = baseWidth * baseTotalHeight;
+  const safeScale =
+    basePixels > MERGED_IMAGE_MAX_PIXELS
+      ? Math.sqrt(MERGED_IMAGE_MAX_PIXELS / Math.max(basePixels, 1))
+      : 1;
+  const targetWidth = Math.max(
+    1,
+    Math.min(
+      baseWidth,
+      Math.max(baseWidth > 720 ? 720 : baseWidth, Math.round(baseWidth * safeScale))
+    )
+  );
+
+  let totalHeight = 0;
+  const defaultCutLines: number[] = [];
+  const normalizedImages = images.map((item, index) => {
+    const scaledHeight = Math.max(
+      1,
+      Math.round((targetWidth / Math.max(item.width, 1)) * item.height)
+    );
+    totalHeight += scaledHeight;
+    if (index < images.length - 1) {
+      defaultCutLines.push(totalHeight);
+    }
+    return {
+      ...item,
+      scaledHeight,
+    };
+  });
+
+  const canvas = document.createElement("canvas");
+  canvas.width = targetWidth;
+  canvas.height = totalHeight;
+  const context = canvas.getContext("2d");
+  if (!context) {
+    throw new Error("无法初始化拼合画布");
+  }
+
+  context.fillStyle = "#ffffff";
+  context.fillRect(0, 0, canvas.width, canvas.height);
+
+  let offsetY = 0;
+  normalizedImages.forEach((item) => {
+    context.drawImage(item.image, 0, offsetY, targetWidth, item.scaledHeight);
+    offsetY += item.scaledHeight;
+  });
+
+  return {
+    canvas,
+    snapshot: {
+      width: targetWidth,
+      height: totalHeight,
+      defaultCutLines,
+      loadedImages: normalizedImages,
+    } satisfies MergedSnapshot,
+  };
+}
+
+interface AgentDetailReferenceStitchDialogProps {
+  open: boolean;
+  onOpenChange: (open: boolean) => void;
+  cards: AgentDetailReplacementReferenceItem[];
+  sourceLabel?: string;
+  onApply: (nextCards: AgentDetailReplacementReferenceItem[]) => void;
+}
+
+export function AgentDetailReferenceStitchDialog({
+  open,
+  onOpenChange,
+  cards,
+  sourceLabel = "详情参考图",
+  onApply,
+}: AgentDetailReferenceStitchDialogProps) {
+  const previewCanvasRef = useRef<HTMLCanvasElement | null>(null);
+  const previewContainerRef = useRef<HTMLDivElement | null>(null);
+  const mergedCanvasRef = useRef<HTMLCanvasElement | null>(null);
+  const [snapshot, setSnapshot] = useState<MergedSnapshot | null>(null);
+  const [cutLines, setCutLines] = useState<number[]>([]);
+  const [draggingLineIndex, setDraggingLineIndex] = useState<number | null>(null);
+  const [isLoading, setIsLoading] = useState(false);
+  const [isApplying, setIsApplying] = useState(false);
+  const [applyProgressText, setApplyProgressText] = useState("");
+  const [errorText, setErrorText] = useState<string | null>(null);
+
+  const validCards = useMemo(
+    () =>
+      cards.filter(
+        (card): card is AgentDetailReplacementReferenceItem & { imageUrl: string } =>
+          Boolean(String(card.imageUrl || "").trim())
+      ),
+    [cards]
+  );
+
+  const normalizedCutLines = useMemo(
+    () =>
+      [...cutLines]
+        .filter((value) => Number.isFinite(value))
+        .sort((left, right) => left - right),
+    [cutLines]
+  );
+
+  const sliceSegments = useMemo(() => {
+    if (!snapshot) return [];
+    const points = [0, ...normalizedCutLines, snapshot.height];
+    return Array.from({ length: Math.max(points.length - 1, 0) }, (_, index) => ({
+      index,
+      top: points[index],
+      height: Math.max(points[index + 1] - points[index], 1),
+    }));
+  }, [normalizedCutLines, snapshot]);
+
+  const redrawPreviewCanvas = useCallback(() => {
+    const previewCanvas = previewCanvasRef.current;
+    const mergedCanvas = mergedCanvasRef.current;
+    if (!previewCanvas || !mergedCanvas || !snapshot) {
+      return;
+    }
+
+    previewCanvas.width = snapshot.width;
+    previewCanvas.height = snapshot.height;
+    const context = previewCanvas.getContext("2d");
+    if (!context) {
+      return;
+    }
+    context.clearRect(0, 0, snapshot.width, snapshot.height);
+    context.drawImage(mergedCanvas, 0, 0);
+  }, [snapshot]);
+
+  useEffect(() => {
+    redrawPreviewCanvas();
+  }, [redrawPreviewCanvas]);
+
+  useEffect(() => {
+    if (!open) {
+      setDraggingLineIndex(null);
+      return;
+    }
+
+    if (validCards.length === 0) {
+      setSnapshot(null);
+      setCutLines([]);
+      setErrorText(`当前没有可拼合的${sourceLabel}`);
+      return;
+    }
+
+    let cancelled = false;
+
+    const setup = async () => {
+      try {
+        setIsLoading(true);
+        setErrorText(null);
+
+        const loadedImages = await Promise.all(
+          validCards.map(async (card) => {
+            const image = await loadImage(card.imageUrl);
+            return {
+              card,
+              image,
+              width: image.naturalWidth,
+              height: image.naturalHeight,
+              scaledHeight: image.naturalHeight,
+            } satisfies LoadedReferenceImage;
+          })
+        );
+
+        if (cancelled) return;
+
+        const next = buildMergedSnapshot(loadedImages);
+        mergedCanvasRef.current = next.canvas;
+        setSnapshot(next.snapshot);
+        setCutLines(next.snapshot.defaultCutLines);
+      } catch (error) {
+        if (cancelled) return;
+        console.error("[AgentDetailReferenceStitchDialog] Failed to prepare merged image:", error);
+        setSnapshot(null);
+        setCutLines([]);
+        setErrorText(error instanceof Error ? error.message : "拼合参考图失败");
+      } finally {
+        if (!cancelled) {
+          setIsLoading(false);
+        }
+      }
+    };
+
+    void setup();
+
+    return () => {
+      cancelled = true;
+    };
+  }, [open, sourceLabel, validCards]);
+
+  useEffect(() => {
+    if (draggingLineIndex === null || !snapshot) {
+      return;
+    }
+
+    const handlePointerMove = (event: PointerEvent) => {
+      const container = previewContainerRef.current;
+      if (!container) return;
+      const rect = container.getBoundingClientRect();
+      if (rect.height <= 0) return;
+
+      const rawY = ((event.clientY - rect.top) / rect.height) * snapshot.height;
+      setCutLines((current) => {
+        const next = [...current].sort((left, right) => left - right);
+        const minY =
+          draggingLineIndex === 0
+            ? MIN_SLICE_HEIGHT
+            : next[draggingLineIndex - 1] + MIN_SLICE_HEIGHT;
+        const maxY =
+          draggingLineIndex === next.length - 1
+            ? snapshot.height - MIN_SLICE_HEIGHT
+            : next[draggingLineIndex + 1] - MIN_SLICE_HEIGHT;
+        next[draggingLineIndex] = clamp(rawY, minY, maxY);
+        return next;
+      });
+    };
+
+    const handlePointerUp = () => {
+      setDraggingLineIndex(null);
+    };
+
+    window.addEventListener("pointermove", handlePointerMove);
+    window.addEventListener("pointerup", handlePointerUp);
+
+    return () => {
+      window.removeEventListener("pointermove", handlePointerMove);
+      window.removeEventListener("pointerup", handlePointerUp);
+    };
+  }, [draggingLineIndex, snapshot]);
+
+  const handleAddCutLine = useCallback(() => {
+    if (!snapshot) return;
+    const points = [0, ...normalizedCutLines, snapshot.height];
+    let bestIndex = -1;
+    let bestHeight = 0;
+
+    for (let index = 0; index < points.length - 1; index += 1) {
+      const currentHeight = points[index + 1] - points[index];
+      if (currentHeight > bestHeight) {
+        bestHeight = currentHeight;
+        bestIndex = index;
+      }
+    }
+
+    if (bestIndex < 0 || bestHeight < MIN_SLICE_HEIGHT * 2) {
+      toast.error("当前没有足够空间继续添加切线");
+      return;
+    }
+
+    const nextY = Math.round((points[bestIndex] + points[bestIndex + 1]) / 2);
+    setCutLines((current) =>
+      [...current, nextY].sort((left, right) => left - right)
+    );
+  }, [normalizedCutLines, snapshot]);
+
+  const handleResetCutLines = useCallback(() => {
+    if (!snapshot) return;
+    setCutLines(snapshot.defaultCutLines);
+  }, [snapshot]);
+
+  const handleRemoveCutLine = useCallback((index: number) => {
+    setCutLines((current) => current.filter((_, currentIndex) => currentIndex !== index));
+  }, []);
+
+  const handleLinePointerDown = useCallback(
+    (index: number) => (event: ReactPointerEvent<HTMLDivElement>) => {
+      event.preventDefault();
+      setDraggingLineIndex(index);
+    },
+    []
+  );
+
+  const handleApply = useCallback(async () => {
+    if (!snapshot || !mergedCanvasRef.current) {
+      toast.error("当前还没有可用的拼合图");
+      return;
+    }
+
+    if (sliceSegments.length === 0) {
+      toast.error("当前没有可切割的参考图");
+      return;
+    }
+
+    setIsApplying(true);
+    setApplyProgressText(`正在上传切片 1/${sliceSegments.length}`);
+
+    try {
+      const nextCards: AgentDetailReplacementReferenceItem[] = [];
+      const sourceCanvas = mergedCanvasRef.current;
+      const sourceCandidateId = validCards[0]?.candidateId || null;
+      const timestamp = Date.now();
+
+      for (const segment of sliceSegments) {
+        setApplyProgressText(`正在上传切片 ${segment.index + 1}/${sliceSegments.length}`);
+
+        const sliceCanvas = document.createElement("canvas");
+        sliceCanvas.width = snapshot.width;
+        sliceCanvas.height = segment.height;
+        const context = sliceCanvas.getContext("2d");
+        if (!context) {
+          throw new Error("切片画布初始化失败");
+        }
+
+        context.fillStyle = "#ffffff";
+        context.fillRect(0, 0, sliceCanvas.width, sliceCanvas.height);
+        context.drawImage(
+          sourceCanvas,
+          0,
+          segment.top,
+          snapshot.width,
+          segment.height,
+          0,
+          0,
+          snapshot.width,
+          segment.height
+        );
+
+        const blob = await new Promise<Blob>((resolve, reject) => {
+          sliceCanvas.toBlob(
+            (value) => {
+              if (value) {
+                resolve(value);
+                return;
+              }
+              reject(new Error("切片导出失败"));
+            },
+            "image/jpeg",
+            0.92
+          );
+        });
+
+        const formData = new FormData();
+        formData.append(
+          "file",
+          new File([blob], `detail-reference-slice-${timestamp}-${segment.index + 1}.jpg`, {
+            type: "image/jpeg",
+          })
+        );
+
+        const response = await fetchUploadWithRetry(formData);
+        const result = await response.json().catch(() => ({}));
+        if (!response.ok || !result?.url) {
+          throw new Error(result?.error || `第 ${segment.index + 1} 张切片上传失败`);
+        }
+
+        nextCards.push({
+          id: `detail-stitch-slice-${timestamp}-${segment.index + 1}`,
+          label: `拼合切片 ${segment.index + 1}`,
+          imageUrl: String(result.url),
+          candidateId: sourceCandidateId,
+          sortOrder: segment.index,
+        });
+      }
+
+      onApply(nextCards);
+      onOpenChange(false);
+      toast.success(`已生成 ${nextCards.length} 张切片参考图`);
+    } catch (error) {
+      console.error("[AgentDetailReferenceStitchDialog] Failed to apply slices:", error);
+      toast.error(error instanceof Error ? error.message : "切割参考图失败");
+    } finally {
+      setIsApplying(false);
+      setApplyProgressText("");
+    }
+  }, [onApply, onOpenChange, sliceSegments, snapshot, validCards]);
+
+  return (
+    <Dialog open={open} onOpenChange={onOpenChange}>
+      <DialogContent
+        className="h-[92vh] max-w-[1440px] overflow-hidden border-white/10 bg-[#060809] p-0 text-white"
+        overlayClassName="bg-black/85 backdrop-blur-sm"
+      >
+        <DialogHeader className="border-b border-white/10 px-6 py-5">
+          <div className="flex flex-wrap items-start justify-between gap-4">
+            <div className="space-y-1">
+              <DialogTitle className="flex items-center gap-2 text-white">
+                <Scissors className="h-5 w-5 text-emerald-300" />
+                拼合切割{sourceLabel}
+              </DialogTitle>
+              <DialogDescription className="text-white/45">
+                先把当前参考图按顺序纵向拼成一张长图，再通过横向切线重新切成多屏，继续用于详情替换逐屏生成。
+              </DialogDescription>
+            </div>
+            <div className="flex flex-wrap items-center gap-2">
+              <div className="rounded-full border border-white/10 bg-white/[0.04] px-3 py-1 text-xs text-white/58">
+                原始 {validCards.length} 张
+              </div>
+              <div className="rounded-full border border-emerald-400/20 bg-emerald-500/[0.08] px-3 py-1 text-xs text-emerald-100/85">
+                当前将切成 {sliceSegments.length || 0} 张
+              </div>
+            </div>
+          </div>
+        </DialogHeader>
+
+        <div className="grid h-full min-h-0 grid-cols-1 xl:grid-cols-[minmax(0,1fr)_320px]">
+          <div className="min-h-0 border-b border-white/10 xl:border-b-0 xl:border-r">
+            <div className="flex flex-wrap items-center gap-2 border-b border-white/10 px-6 py-4">
+              <Button
+                type="button"
+                variant="outline"
+                onClick={handleAddCutLine}
+                disabled={!snapshot || isLoading || isApplying}
+                className="border-white/12 bg-white/[0.03] text-white hover:bg-white/[0.08] hover:text-white"
+              >
+                <Plus className="mr-2 h-4 w-4" />
+                添加切线
+              </Button>
+              <Button
+                type="button"
+                variant="outline"
+                onClick={handleResetCutLines}
+                disabled={!snapshot || isLoading || isApplying}
+                className="border-white/12 bg-white/[0.03] text-white hover:bg-white/[0.08] hover:text-white"
+              >
+                <RotateCcw className="mr-2 h-4 w-4" />
+                恢复原页边界
+              </Button>
+              <div className="text-xs text-white/42">
+                默认切线已按原始详情页边界生成，可直接拖动横线微调。
+              </div>
+            </div>
+
+            <div className="agent-dark-scrollbar h-full overflow-auto px-6 py-5">
+              {isLoading ? (
+                <div className="flex min-h-[420px] flex-col items-center justify-center gap-3 rounded-[24px] border border-dashed border-white/12 bg-black/20 text-center">
+                  <Loader2 className="h-6 w-6 animate-spin text-emerald-300" />
+                  <div className="text-sm text-white/75">正在拼合参考图...</div>
+                  <div className="text-xs text-white/42">会按当前参考图顺序从上到下拼成一张长图</div>
+                </div>
+              ) : errorText ? (
+                <div className="flex min-h-[420px] flex-col items-center justify-center rounded-[24px] border border-dashed border-red-400/20 bg-red-500/[0.05] px-6 text-center">
+                  <div className="text-sm font-medium text-red-100">{errorText}</div>
+                  <div className="mt-2 text-xs leading-6 text-red-100/60">
+                    请先确认当前已经成功加载参考详情图，再进入拼合切割。
+                  </div>
+                </div>
+              ) : snapshot ? (
+                <div className="space-y-4">
+                  <div
+                    ref={previewContainerRef}
+                    className="relative overflow-hidden rounded-[24px] border border-white/10 bg-white"
+                  >
+                    <canvas
+                      ref={previewCanvasRef}
+                      className="block h-auto w-full select-none"
+                    />
+
+                    <div className="pointer-events-none absolute inset-0">
+                      {normalizedCutLines.map((lineY, index) => {
+                        const topPercent = (lineY / snapshot.height) * 100;
+                        return (
+                          <div
+                            key={`cut-line-${index}-${lineY}`}
+                            className="absolute inset-x-0"
+                            style={{ top: `${topPercent}%` }}
+                          >
+                            <div
+                              onPointerDown={handleLinePointerDown(index)}
+                              className={cn(
+                                "pointer-events-auto absolute inset-x-0 flex -translate-y-1/2 cursor-row-resize items-center justify-center",
+                                draggingLineIndex === index && "z-20"
+                              )}
+                              style={{ touchAction: "none" }}
+                            >
+                              <div className="relative w-full">
+                                <div className="h-[2px] w-full bg-emerald-400 shadow-[0_0_16px_rgba(52,211,153,0.42)]" />
+                                <div className="absolute left-3 top-1/2 -translate-y-1/2 rounded-full border border-emerald-300/35 bg-black/72 px-2 py-1 text-[11px] text-emerald-100">
+                                  切线 {index + 1}
+                                </div>
+                                <button
+                                  type="button"
+                                  onClick={(event) => {
+                                    event.stopPropagation();
+                                    handleRemoveCutLine(index);
+                                  }}
+                                  className="absolute right-3 top-1/2 pointer-events-auto -translate-y-1/2 rounded-full border border-white/12 bg-black/72 px-2 py-1 text-[11px] text-white/78 transition-colors hover:border-white/20 hover:text-white"
+                                >
+                                  删除
+                                </button>
+                              </div>
+                            </div>
+                          </div>
+                        );
+                      })}
+                    </div>
+                  </div>
+
+                  <div className="rounded-[20px] border border-white/10 bg-black/20 px-4 py-3 text-xs leading-6 text-white/48">
+                    向下拖动可浏览整张拼合长图。每条横线代表一次切割边界，应用后会替换当前详情参考图列表。
+                  </div>
+                </div>
+              ) : null}
+            </div>
+          </div>
+
+          <div className="flex min-h-0 flex-col">
+            <div className="border-b border-white/10 px-5 py-4">
+              <div className="text-sm font-semibold text-white">切割结果预估</div>
+              <div className="mt-1 text-xs text-white/42">
+                应用切割后，下方每一段都会回到详情替换参考图区，继续逐屏生成。
+              </div>
+            </div>
+
+            <div className="agent-dark-scrollbar flex-1 space-y-3 overflow-y-auto px-5 py-4">
+              {sliceSegments.length > 0 ? (
+                sliceSegments.map((segment) => (
+                  <div
+                    key={`slice-segment-${segment.index}`}
+                    className="rounded-[20px] border border-white/10 bg-white/[0.03] p-3"
+                  >
+                    <div className="flex items-center justify-between gap-3">
+                      <div className="text-sm font-medium text-white">
+                        切片 {segment.index + 1}
+                      </div>
+                      <div className="rounded-full border border-white/10 bg-black/30 px-2.5 py-1 text-[11px] text-white/52">
+                        高度 {segment.height}px
+                      </div>
+                    </div>
+                    <div className="mt-2 text-xs leading-6 text-white/42">
+                      从 {Math.round(segment.top)}px 到 {Math.round(segment.top + segment.height)}px
+                    </div>
+                  </div>
+                ))
+              ) : (
+                <div className="flex min-h-[220px] items-center justify-center rounded-[20px] border border-dashed border-white/12 bg-black/20 px-5 text-center text-sm text-white/42">
+                  当前还没有可切割的长图。
+                </div>
+              )}
+            </div>
+
+            <div className="border-t border-white/10 px-5 py-4">
+              <Button
+                type="button"
+                onClick={handleApply}
+                disabled={isLoading || isApplying || !snapshot || sliceSegments.length === 0}
+                className="h-11 w-full rounded-[18px] bg-emerald-500 text-black hover:bg-emerald-400 disabled:opacity-50"
+              >
+                {isApplying ? (
+                  <>
+                    <Loader2 className="mr-2 h-4 w-4 animate-spin" />
+                    {applyProgressText || "正在应用切割"}
+                  </>
+                ) : (
+                  <>
+                    <Scissors className="mr-2 h-4 w-4" />
+                    应用切割并替换参考图
+                  </>
+                )}
+              </Button>
+            </div>
+          </div>
+        </div>
+      </DialogContent>
+    </Dialog>
+  );
+}

components/agents/AgentGenerationWorkspaceDarkV2.tsx

@@ -39,6 +39,7 @@ import {
 import { ImageParamsBar, type ImageGenerationParams } from "@/components/image-params-bar";
 import { ImageGenerationLoading } from "@/components/image-generation-loading";
 import { AgentWorkflowShowcaseBanner } from "@/components/agents/AgentWorkflowShowcaseBanner";
+import { AgentDetailReferenceStitchDialog } from "@/components/agents/AgentDetailReferenceStitchDialog";
 import { useCanvasStore } from "@/store/canvas";
 import { fetchUploadWithRetry } from "@/lib/client/upload-with-retry";
 import { buildImageProxyUrl } from "@/lib/image-delivery";
@@ -551,6 +552,7 @@ export function AgentGenerationWorkspaceDarkV2({
     isLoading: false,
     lastQuery: null,
   });
+  const [detailReferenceStitchDialogOpen, setDetailReferenceStitchDialogOpen] = useState(false);
   const [activeDetailReferenceCardId, setActiveDetailReferenceCardId] = useState<string | null>(null);
   const [skuReplacementSearchState, setSkuReplacementSearchState] = useState<{
     isLoading: boolean;
@@ -1756,6 +1758,15 @@ export function AgentGenerationWorkspaceDarkV2({
       references: [],
     }));
   }, [updateDetailReplacementState]);
+  const handleApplyStitchedDetailReferenceCards = useCallback(
+    (nextCards: AgentModeWorkspaceState["detailReplacement"]["references"]) => {
+      updateDetailReplacementState((current) => ({
+        ...current,
+        references: nextCards,
+      }));
+    },
+    [updateDetailReplacementState]
+  );
   const handleSkuReplacementSearch = useCallback(async () => {
     const normalized = skuReplacementQueryInput.trim().toUpperCase();
     if (!workflowStoreName) {
@@ -2381,6 +2392,16 @@ export function AgentGenerationWorkspaceDarkV2({
                       `查询${detailReferenceSourceLabel}`
                     )}
                   </Button>
+                  {detailReplacementReferenceCards.length > 0 ? (
+                    <Button
+                      type="button"
+                      variant="outline"
+                      onClick={() => setDetailReferenceStitchDialogOpen(true)}
+                      className="h-12 rounded-[22px] border-emerald-400/20 bg-emerald-500/[0.08] px-5 text-sm text-emerald-100 hover:bg-emerald-500/[0.14] hover:text-emerald-50"
+                    >
+                      拼合切割参考图
+                    </Button>
+                  ) : null}
                   {detailReplacementReferenceCards.length > 0 ? (
                     <Button
                       type="button"
@@ -2520,6 +2541,16 @@ export function AgentGenerationWorkspaceDarkV2({
             </motion.section>
           ) : null}
 
+          {isDetailReplacementPreset ? (
+            <AgentDetailReferenceStitchDialog
+              open={detailReferenceStitchDialogOpen}
+              onOpenChange={setDetailReferenceStitchDialogOpen}
+              cards={detailReplacementReferenceCards}
+              sourceLabel={`${detailReferenceSourceLabel}参考图`}
+              onApply={handleApplyStitchedDetailReferenceCards}
+            />
+          ) : null}
+
           <motion.section
             id="agent-anchor-results"
             className={cn(
@@ -2682,8 +2713,19 @@ export function AgentGenerationWorkspaceDarkV2({
                         仅支持按 SPU 查询任务整套候选，并切换某一套的{detailReferenceSourceLabel}参考图。
                       </div>
                     </div>
-                    <div className="rounded-full border border-white/10 bg-white/[0.03] px-3 py-1 text-xs text-white/55">
-                      {detailReplacementReferenceCards.length} 张
+                    <div className="flex items-center gap-2">
+                      {detailReplacementReferenceCards.length > 0 ? (
+                        <button
+                          type="button"
+                          onClick={() => setDetailReferenceStitchDialogOpen(true)}
+                          className="rounded-full border border-emerald-400/20 bg-emerald-500/[0.08] px-3 py-1 text-xs text-emerald-100 transition-colors hover:bg-emerald-500/[0.14]"
+                        >
+                          拼合切割
+                        </button>
+                      ) : null}
+                      <div className="rounded-full border border-white/10 bg-white/[0.03] px-3 py-1 text-xs text-white/55">
+                        {detailReplacementReferenceCards.length} 张
+                      </div>
                     </div>
                   </div>
 

components/agents/AgentWorkflowPanelDarkV2.tsx

@@ -611,30 +611,6 @@ export function AgentWorkflowPanelDarkV2({
                         })}
                         </div>
                       </div>
-
-                      <div>
-                        <div className="mb-2 flex items-center gap-2 text-lg font-semibold text-white">
-                          <span className="flex h-7 w-7 items-center justify-center rounded-md bg-emerald-500/20 text-xs font-bold text-emerald-400">
-                            {activeEmbeddedStepIndex + 2}
-                          </span>
-                          {activeEmbeddedStepEntry.step.title}
-                          {activeEmbeddedStepEntry.depth > 1 ? (
-                            <span className="rounded-full border border-white/12 px-2 py-0.5 text-[11px] font-medium text-white/45">
-                              {activeEmbeddedStepEntry.depth === 2 ? "二级模块" : "三级模块"}
-                            </span>
-                          ) : null}
-                        </div>
-                        <div className="mb-2 text-xs text-white/55">
-                          {stepSelectionSummaryMap[activeEmbeddedStepEntry.step.key]
-                            ? `已选：${stepSelectionSummaryMap[activeEmbeddedStepEntry.step.key]}`
-                            : "待选择：完成当前卡片后会自动推进到下一步"}
-                        </div>
-                        {activeEmbeddedStepEntry.step.description ? (
-                          <p className="text-sm text-white/40">
-                            {activeEmbeddedStepEntry.step.description}
-                          </p>
-                        ) : null}
-                      </div>
                     </div>
 
                     {renderOptionLevels(