fix: 重构模型开关点击逻辑，使用原生 JS 强制点击底层元素解决无头浏览器下点击失效的问题

deepseek_browser.py

@@ -286,39 +286,41 @@ class DeepSeekBrowser:
 
     async def switch_model(self, model: str):
         try:
+            # Inject a robust clicker that finds the innermost element containing specific text
+            # and clicks it directly via JS, bypassing Playwright's actionability checks.
+            click_js = """(texts) => {
+                const els = Array.from(document.querySelectorAll('*'));
+                const target = els.reverse().find(el => {
+                    if (!el.innerText || el.children.length > 0) return false;
+                    return texts.some(t => el.innerText.includes(t)) && el.offsetParent !== null;
+                });
+                if (target) {
+                    target.click();
+                    return true;
+                }
+                return false;
+            }"""
+
             # 极速思考模式
             if 'fast' in model or 'lite' in model:
-                fast_btn = self.page.locator(
-                    'text="极速思考", text="快速模式"'
-                ).first
-                if await fast_btn.count() > 0:
-                    await fast_btn.click()
-                    await asyncio.sleep(0.5)
+                await self.page.evaluate(click_js, ['极速思考', '快速模式'])
+                await asyncio.sleep(0.5)
+                
             # 深度思考 (DeepThink R1)
             elif 'reasoner' in model or 'thinking' in model or 'pro' in model:
-                thinking_btn = self.page.locator(
-                    'text="深度思考", text="DeepThink", text="R1"'
-                ).first
-                if await thinking_btn.count() > 0:
-                    await thinking_btn.click()
-                    await asyncio.sleep(0.5)
+                await self.page.evaluate(click_js, ['深度思考', 'DeepThink', 'R1'])
+                await asyncio.sleep(0.5)
 
             # 专家模式 (独立开关)
             if 'expert' in model:
-                expert_btn = self.page.locator(
-                    'text="专家模式"'
-                ).first
-                if await expert_btn.count() > 0:
-                    await expert_btn.click()
-                    await asyncio.sleep(0.5)
+                await self.page.evaluate(click_js, ['专家模式'])
+                await asyncio.sleep(0.5)
 
             if 'search' in model:
-                search_btn = self.page.locator('text="智能搜索"').first
-                if await search_btn.count() > 0:
-                    await search_btn.click()
-                    await asyncio.sleep(0.5)
-        except Exception:
-            pass
+                await self.page.evaluate(click_js, ['智能搜索'])
+                await asyncio.sleep(0.5)
+        except Exception as e:
+            logger.warning("[switch_model] click error: %s", e)
 
     async def send_message(self, prompt: str, timeout: int = 120, model: str = "deepseek-chat") -> dict:
         """Send message and return {'content': str, 'reasoning_content': str}."""