新增 Pinterest 参考模式：独立于 Google Trends 的完整链路（12国种子词池 / LLM搜索词json_schema+防重复+已用词限100 / 并发爬图 / 多模态分析→原创简报 / 生图带爬取图参考图生图 / UI流程选择）

graph/nodes/compose_node.py

@@ -157,15 +157,38 @@ def compose_node(state: Dict[str, Any]) -> Dict[str, Any]:
         from concurrent.futures import ThreadPoolExecutor, as_completed
 
         def _gen_one(i: int, b: Dict[str, Any]):
-            """单张设计稿生成（并发线程内调用，每设计一线程）。"""
+            """单张设计稿生成（并发线程内调用，每设计一线程）。
+
+            Pinterest 参考模式：简报带 ref_images（爬取图）→ 用 ib.print() 图生图，
+            把爬取图 + 多模态分析简报（已封装进 image_prompt）一起发给生图模型；
+            无参考图或图生图失败 → 回退 ib.generate() 纯文生图。
+            """
             try:
                 img_prompt = sanitize_image_prompt(b.get("image_prompt", ""))
                 img_prompt = ensure_rebrand_hint(b, img_prompt)   # review → 原创化魔改引导
-                out_path = ib.generate(
-                    img_prompt,
-                    str(design_dir / f"{country}_{i:02d}_design.png"),
-                    b.get("composite_negative", ""),
-                    size="1024x1024")   # 印花设计统一 1024x1024
+                out_path = str(design_dir / f"{country}_{i:02d}_design.png")
+                ref_images = [str(p) for p in (b.get("ref_images") or []) if str(p)]
+                if ref_images and hasattr(ib, "print"):
+                    try:
+                        # 图生图：以爬取图为参考，按分析简报生成原创设计（不复制原图）
+                        ref_prompt = img_prompt + (
+                            " Create an ORIGINAL, non-copying flat print design inspired ONLY by "
+                            "the reference image's style and mood. Do NOT reproduce the reference "
+                            "image, its characters, logos, or any text.")
+                        out_path = ib.print(
+                            ref_prompt, ref_images[0], out_path,
+                            b.get("composite_negative", ""),
+                            extra_images=ref_images[1:] or None,
+                            size="1024x1024")   # 印花设计统一 1024x1024
+                    except Exception as e:  # noqa: BLE001
+                        print(f"[compose] 图生图（参考图）失败，回退文生图 {b.get('topic','')}: {e}")
+                        out_path = ib.generate(
+                            img_prompt, str(design_dir / f"{country}_{i:02d}_design.png"),
+                            b.get("composite_negative", ""), size="1024x1024")
+                else:
+                    out_path = ib.generate(
+                        img_prompt, str(design_dir / f"{country}_{i:02d}_design.png"),
+                        b.get("composite_negative", ""), size="1024x1024")
                 return i, b, out_path, None
             except Exception as e:  # noqa: BLE001
                 return i, b, None, e