diff --git a/services/kdocs_uploader.py b/services/kdocs_uploader.py
index 02b6440..8bd0724 100644
--- a/services/kdocs_uploader.py
+++ b/services/kdocs_uploader.py
@@ -202,6 +202,7 @@ class KDocsUploader:
     def _open_document(self, doc_url: str, *, fast: bool = False) -> bool:
         try:
             self._doc_url = doc_url
+            self._ensure_clipboard_permissions(doc_url)
             if fast:
                 doc_pages = self._find_doc_pages(doc_url)
                 if doc_pages:
@@ -232,6 +233,18 @@ class KDocsUploader:
             self._last_error = f"打开文档失败: {e}"
             return False
 
+    def _ensure_clipboard_permissions(self, doc_url: str) -> None:
+        if not self._context or not doc_url:
+            return
+        try:
+            parsed = urlparse(doc_url)
+            if not parsed.scheme or not parsed.netloc:
+                return
+            origin = f"{parsed.scheme}://{parsed.netloc}"
+            self._context.grant_permissions(["clipboard-read", "clipboard-write"], origin=origin)
+        except Exception:
+            return
+
     def _normalize_doc_url(self, url: str) -> str:
         if not url:
             return ""
@@ -953,38 +966,70 @@ class KDocsUploader:
                     continue
 
     def _get_current_cell_address(self) -> str:
-        name_box = self._page.locator('#root input[type="text"]').first
-        return name_box.input_value()
+        try:
+            name_box = self._page.locator("input.edit-box").first
+            return name_box.input_value()
+        except Exception:
+            name_box = self._page.locator('#root input[type="text"]').first
+            return name_box.input_value()
 
     def _navigate_to_cell(self, cell_address: str) -> None:
-        name_box = self._page.locator('#root input[type="text"]').first
-        name_box.click()
-        name_box.fill(cell_address)
-        name_box.press("Enter")
+        try:
+            name_box = self._page.locator("input.edit-box").first
+            name_box.click()
+            name_box.fill(cell_address)
+            name_box.press("Enter")
+        except Exception:
+            name_box = self._page.locator('#root input[type="text"]').first
+            name_box.click()
+            name_box.fill(cell_address)
+            name_box.press("Enter")
         time.sleep(0.3)
 
+    def _focus_grid(self) -> None:
+        try:
+            info = self._page.evaluate(
+                """() => {
+                    const canvases = Array.from(document.querySelectorAll("canvas"));
+                    let best = null;
+                    for (const c of canvases) {
+                        const rect = c.getBoundingClientRect();
+                        if (!rect.width || !rect.height) continue;
+                        if (rect.width < 200 || rect.height < 200) continue;
+                        const area = rect.width * rect.height;
+                        if (!best || area > best.area) {
+                            best = {x: rect.left + rect.width / 2, y: rect.top + rect.height / 2, area};
+                        }
+                    }
+                    return best;
+                }"""
+            )
+            if info and info.get("x") and info.get("y"):
+                self._page.mouse.click(info["x"], info["y"])
+                time.sleep(0.1)
+        except Exception:
+            pass
+
+    def _read_clipboard_text(self) -> str:
+        try:
+            return self._page.evaluate("() => navigator.clipboard.readText()") or ""
+        except Exception:
+            return ""
+
     def _get_cell_value(self, cell_address: str) -> str:
         self._navigate_to_cell(cell_address)
         time.sleep(0.3)
         try:
-            formula_bar = self._page.locator('input[type="text"]').nth(1)
-            value = formula_bar.input_value()
-            if value:
-                return value.strip()
+            self._page.evaluate("() => navigator.clipboard.writeText('')")
         except Exception:
             pass
+        self._focus_grid()
         try:
-            formula_inputs = self._page.locator('textbox')
-            for i in range(formula_inputs.count()):
-                try:
-                    value = formula_inputs.nth(i).input_value()
-                    if value:
-                        import re
-
-                        if not re.match(r"^[A-Z]+\d+$", value.strip()):
-                            return value.strip()
-                except Exception:
-                    continue
+            self._page.keyboard.press("Control+c")
+            time.sleep(0.2)
+            value = self._read_clipboard_text()
+            if value:
+                return value.strip()
         except Exception:
             pass
         return ""
@@ -1020,6 +1065,7 @@ class KDocsUploader:
         return True
 
     def _search_person(self, name: str) -> None:
+        self._focus_grid()
         self._page.keyboard.press("Control+f")
         time.sleep(0.3)
         search_input = None