diff --git a/components-diy/diy-recommend-code.vue b/components-diy/diy-recommend-code.vue
index 7aac3a0..9ac0596 100644
--- a/components-diy/diy-recommend-code.vue
+++ b/components-diy/diy-recommend-code.vue
@@ -1322,7 +1322,12 @@ onShareClick() {
           ctx.setFontSize(36);
           ctx.setFillStyle(v.codeColor || '#DC143C');
           ctx.setTextAlign('center');
-          ctx.setFontWeight('bold');
+          // setFontWeight 是新版 canvas 2d API,旧版不支持;用 font 字符串兜底
+          if (typeof ctx.setFontWeight === 'function') {
+            ctx.setFontWeight('bold');
+          } else {
+            try { ctx.font = 'bold 36px sans-serif'; } catch(e) {}
+          }
           ctx.fillText(code, W / 2, blockY + blockH / 2 + 12);
           // 6. 二维码(如果有 url)
           const qr = this.qrcodeRenderUrl;