diff --git a/web-to-ppt/capture.js b/web-to-ppt/capture.js
index 77043c5..f894ebc 100644
--- a/web-to-ppt/capture.js
+++ b/web-to-ppt/capture.js
@@ -985,7 +985,7 @@
     pushCaptureChild(children, afterNode);
 
     // SVG → 序列化为 data URL 图片
-    if (element.tagName === "SVG" && !backgroundUrls.length) {
+    if ((element.tagName === "SVG" || element.tagName === "svg") && !backgroundUrls.length) {
       try {
         const svgClone = element.cloneNode(true);
         // 确保有 xmlns