diff --git a/internal/providers/geminiweb/playwright_provider.go b/internal/providers/geminiweb/playwright_provider.go
index ef2317b..126740e 100644
--- a/internal/providers/geminiweb/playwright_provider.go
+++ b/internal/providers/geminiweb/playwright_provider.go
@@ -393,10 +393,61 @@ func (p *PlaywrightProvider) typeInput(text string) error {
 	}
 
 	if !found {
-		// 顯示 debug 信息
+		// 保存診斷信息
+		screenshotPath := "/tmp/gemini-debug.png"
+		htmlPath := "/tmp/gemini-debug.html"
+
+		// 截圖
+		if _, err := p.page.Screenshot(playwright.PageScreenshotOptions{
+			Path: playwright.String(screenshotPath),
+		}); err == nil {
+			fmt.Printf("[GeminiWeb] Screenshot saved: %s\n", screenshotPath)
+		}
+
+		// HTML
+		if html, err := p.page.Content(); err == nil {
+			if err := os.WriteFile(htmlPath, []byte(html), 0644); err == nil {
+				fmt.Printf("[GeminiWeb] HTML saved: %s\n", htmlPath)
+			}
+		}
+
+		// 輸出調試信息
 		url := p.page.URL()
 		title, _ := p.page.Title()
-		return fmt.Errorf("input field not found (URL=%s, Title=%s)", url, title)
+		fmt.Printf("[GeminiWeb] DEBUG: URL=%s\n", url)
+		fmt.Printf("[GeminiWeb] DEBUG: Title=%s\n", title)
+
+		// 嘗試用 JavaScript 找輸入框
+		fmt.Println("[GeminiWeb] Trying JavaScript element search...")
+		_, _ = p.page.Evaluate(`
+			() => {
+				console.log('=== DEBUG: Looking for input elements ===');
+				const selectors = [
+					'.ProseMirror',
+					'rich-textarea',
+					'div[role="textbox"]',
+					'div[contenteditable="true"]',
+					'textarea',
+					'input'
+				];
+				for (const sel of selectors) {
+					const els = document.querySelectorAll(sel);
+					if (els.length > 0) {
+						console.log('Found', els.length, 'elements for:', sel);
+					}
+				}
+				
+				// 檢查頁面中所有可交互元素
+				const interactable = document.querySelectorAll('div[contenteditable="true"], textarea, input[type="text"], [role="textbox"]');
+				console.log('Total interactable elements:', interactable.length);
+				
+				return { found: false };
+			}
+		`)
+
+		// 顯示最後的URL和標題
+		return fmt.Errorf("input field not found (URL=%s, Title=%s). Screenshot saved to %s, HTML saved to %s",
+			url, title, screenshotPath, htmlPath)
 	}
 
 	// Focus 並填充（Playwright 自動等待）