diff --git a/web-to-ppt/capture.js b/web-to-ppt/capture.js
index 922d33e..65fac4e 100644
--- a/web-to-ppt/capture.js
+++ b/web-to-ppt/capture.js
@@ -1008,13 +1008,15 @@
 
     // SVG → 序列化为 data URL 图片
     if ((element.tagName === "SVG" || element.tagName === "svg") && !node.backgroundImages.length) {
+      console.log('[WebToPPT] SVG found:', element.tagName, (element.className||'').slice(0,30));
       try {
         const svgClone = element.cloneNode(true);
         if (!svgClone.getAttribute("xmlns")) svgClone.setAttribute("xmlns", "http://www.w3.org/2000/svg");
         const svgStr = new XMLSerializer().serializeToString(svgClone);
         node.backgroundImages = ["data:image/svg+xml;base64," + btoa(unescape(encodeURIComponent(svgStr)))];
         node.type = "RECTANGLE";
-      } catch (e) { /* 静默失败 */ }
+        console.log('[WebToPPT] SVG captured:', node.backgroundImages[0].length, 'bytes');
+      } catch (e) { console.warn('[WebToPPT] SVG failed:', e.message); }
     }
 
     return node;