diff --git a/components-diy/diy-recommend-code.vue b/components-diy/diy-recommend-code.vue
index 8024c65..94b1016 100644
--- a/components-diy/diy-recommend-code.vue
+++ b/components-diy/diy-recommend-code.vue
@@ -327,6 +327,9 @@
 </view>
     <!-- 登录组件占位（ns-login 全局 mixin 已注册） -->
     <ns-login ref="nsLoginBox" :popup="true" @getUserInfo="onLoginSuccess"></ns-login>
+    <!-- ============ 分享海报 canvas（隐藏，仅小程序分享时生成推荐码组件的截图） ============ -->
+    <canvas v-if="!isH5Platform" canvas-id="sharePosterCanvas" id="sharePosterCanvas"
+            style="position:fixed;left:-9999px;top:-9999px;width:375px;height:480px;z-index:-1;"></canvas>
   </view>
 </template>
 
@@ -732,12 +735,197 @@ export default {
   onShareAppMessage() {
     const v = this.nc;
     const title = v.shareTitle || v.title || '邀您入驻低空经济产业平台';
+    // 小程序环境下,生成「仅推荐码组件」的截图海报作为分享图
+    // H5 平台不进入 canvas 路径,直接用 diyData.shareImageUrl
+    if (!this.isH5Platform) {
+      return new Promise((resolve) => {
+        // 先生成海报;失败或非小程序时回退到默认 imageUrl
+        this.generateSharePoster()
+          .then((posterPath) => {
+            resolve({
+              title,
+              path: this.extractMiniProgramPath(),
+              imageUrl: posterPath || (v.shareImageUrl || '')
+            });
+          })
+          .catch(() => {
+            resolve({
+              title,
+              path: this.extractMiniProgramPath(),
+              imageUrl: v.shareImageUrl || ''
+            });
+          });
+      });
+    }
     return {
       title,
       path: this.extractMiniProgramPath(),
       imageUrl: v.shareImageUrl || ''
     };
   },
+  /**
+   * 生成推荐码组件的分享海报
+   * 画布内容:白底 + 标题 + 推荐码大字 + 二维码(如果有) + 简短提示
+   * 返回 Promise<tempFilePath>
+   */
+  generateSharePoster() {
+    const v = this.nc;
+    const code = this.code || v.placeholderCode || 'ABCD1234';
+    const title = v.title || '我的推荐码';
+    const W = 375;
+    const H = 480;
+    return new Promise((resolve, reject) => {
+      try {
+        const ctx = uni.createCanvasContext('sharePosterCanvas', this);
+        if (!ctx) return reject(new Error('createCanvasContext 失败'));
+        // 1. 白底
+        ctx.setFillStyle('#FFFFFF');
+        ctx.fillRect(0, 0, W, H);
+        // 2. 顶部标题
+        ctx.setFontSize(18);
+        ctx.setFillStyle('#1A1A1A');
+        ctx.setTextAlign('left');
+        ctx.fillText(title, 24, 44);
+        // 3. 提示文字
+        ctx.setFontSize(12);
+        ctx.setFillStyle('#999999');
+        ctx.fillText('分享给好友,邀请入驻获得奖励', 24, 70);
+        // 4. 米黄背景区
+        ctx.setFillStyle('#FFF8F0');
+        const blockY = 90, blockH = 120, blockX = 24, blockW = W - 48;
+        this._roundRect(ctx, blockX, blockY, blockW, blockH, 12);
+        ctx.fill();
+        // 5. 推荐码(居中)
+        ctx.setFontSize(36);
+        ctx.setFillStyle(v.codeColor || '#DC143C');
+        ctx.setTextAlign('center');
+        ctx.setFontWeight('bold');
+        ctx.fillText(code, W / 2, blockY + blockH / 2 + 12);
+        // 6. 二维码(如果有 url)
+        const qr = this.qrcodeRenderUrl;
+        if (qr) {
+          // 先下载到本地临时路径
+          this._downloadImage(qr).then((localPath) => {
+            // 二维码绘制在中部下方,正方形 180x180
+            const qrSize = 180;
+            const qrX = (W - qrSize) / 2;
+            const qrY = blockY + blockH + 24;
+            // 白色边框区
+            ctx.setFillStyle('#FFFFFF');
+            this._roundRect(ctx, qrX - 6, qrY - 6, qrSize + 12, qrSize + 12, 12);
+            ctx.fill();
+            ctx.drawImage(localPath, qrX, qrY, qrSize, qrSize);
+            // 7. 底部提示
+            ctx.setFontSize(11);
+            ctx.setFillStyle('#999999');
+            ctx.setTextAlign('center');
+            ctx.fillText(v.posterQrTip || '扫码进入并填写入驻信息', W / 2, qrY + qrSize + 24);
+            this._exportCanvas(W, H).then(resolve).catch(reject);
+          }).catch(() => {
+            // 二维码加载失败,直接导出无二维码版
+            this._exportCanvas(W, H).then(resolve).catch(reject);
+          });
+        } else {
+          this._exportCanvas(W, H).then(resolve).catch(reject);
+        }
+      } catch (e) {
+        reject(e);
+      }
+    });
+  },
+  /**
+   * canvas 转图片(uni.canvasToTempFilePath Promise 化)
+   */
+  _exportCanvas(W, H) {
+    return new Promise((resolve, reject) => {
+      // 微信小程序: type=2d canvas,需要传入 canvas 实例
+      // 旧版非 type=2d: 用 canvasId 字符串
+      // 这里两种方式都尝试
+      const query = uni.createSelectorQuery().in(this);
+      query.select('#sharePosterCanvas')
+        .fields({ node: true, size: true })
+        .exec((res) => {
+          if (res && res[0] && res[0].node) {
+            // 新版 type=2d canvas
+            uni.canvasToTempFilePath({
+              canvas: res[0].node,
+              width: W,
+              height: H,
+              destWidth: W * 2,
+              destHeight: H * 2,
+              fileType: 'png',
+              quality: 1,
+              success: (r) => resolve(r.tempFilePath),
+              fail: (err) => {
+                // 退化到旧 API
+                uni.canvasToTempFilePath({
+                  canvasId: 'sharePosterCanvas',
+                  width: W,
+                  height: H,
+                  destWidth: W * 2,
+                  destHeight: H * 2,
+                  fileType: 'png',
+                  quality: 1,
+                  success: (r2) => resolve(r2.tempFilePath),
+                  fail: (err2) => reject(err2 || err)
+                }, this);
+              }
+            }, this);
+          } else {
+            // 旧版 canvas:ctx.draw(false, ...) 后导出
+            const ctx = uni.createCanvasContext('sharePosterCanvas', this);
+            if (ctx && ctx.draw) {
+              ctx.draw(false, () => {
+                uni.canvasToTempFilePath({
+                  canvasId: 'sharePosterCanvas',
+                  width: W,
+                  height: H,
+                  destWidth: W * 2,
+                  destHeight: H * 2,
+                  fileType: 'png',
+                  quality: 1,
+                  success: (r) => resolve(r.tempFilePath),
+                  fail: (err) => reject(err)
+                }, this);
+              });
+            } else {
+              reject(new Error('canvas 初始化失败'));
+            }
+          }
+        });
+    });
+  },
+  /**
+   * 圆角矩形路径(canvas API)
+   */
+  _roundRect(ctx, x, y, w, h, r) {
+    ctx.beginPath();
+    ctx.moveTo(x + r, y);
+    ctx.arcTo(x + w, y, x + w, y + h, r);
+    ctx.arcTo(x + w, y + h, x, y + h, r);
+    ctx.arcTo(x, y + h, x, y, r);
+    ctx.arcTo(x, y, x + w, y, r);
+    ctx.closePath();
+  },
+  /**
+   * 下载图片到临时路径(Promise 化)
+   * 支持本地路径直接返回
+   */
+  _downloadImage(url) {
+    return new Promise((resolve, reject) => {
+      if (!url) return reject(new Error('url 为空'));
+      // 已是临时/本地路径
+      if (!/^https?:\/\//i.test(url)) return resolve(url);
+      uni.downloadFile({
+        url,
+        success: (res) => {
+          if (res.statusCode === 200 && res.tempFilePath) resolve(res.tempFilePath);
+          else reject(new Error('下载失败:' + res.statusCode));
+        },
+        fail: reject
+      });
+    });
+  },
   onShareTimeline() {
     const v = this.nc;
     // 从H5分享链接中提取完整查询参数，与分享给好友保持一致