diff --git a/.codegraph/.gitignore b/.codegraph/.gitignore
new file mode 100644
index 0000000..d20c0fe
--- /dev/null
+++ b/.codegraph/.gitignore
@@ -0,0 +1,5 @@
+# CodeGraph data files — local to each machine, not for committing.
+# Ignore everything in .codegraph/ except this file itself, so transient
+# files (the database, daemon.pid, sockets, logs) never show up in git.
+*
+!.gitignore
diff --git a/CleanDesktopOrganizer.spec b/CleanDesktopOrganizer.spec
index 62aab32..a97916e 100644
--- a/CleanDesktopOrganizer.spec
+++ b/CleanDesktopOrganizer.spec
@@ -2,7 +2,8 @@
 from PyInstaller.utils.hooks import collect_all
 
 datas = [('assets', 'assets'), ('logo.png', '.'), ('logo.ico', '.')]
-binaries = []
+# update_helper.exe 打包进 onefile，运行时解压到 _MEIPASS
+binaries = [('update_helper.exe', '.')] if __import__('os').path.exists('update_helper.exe') else []
 hiddenimports = ['qtawesome']
 tmp_ret = collect_all('qtawesome')
 datas += tmp_ret[0]; binaries += tmp_ret[1]; hiddenimports += tmp_ret[2]
diff --git a/Readme.md b/Readme.md
index 1e6bbe8..157685a 100644
--- a/Readme.md
+++ b/Readme.md
@@ -1,5 +1,13 @@
-# 编译命令
-python -m PyInstaller CleanDesktopOrganizer.spec
+# 打包成 onefile
 
-# 清除缓存重新打包命令
+```powershell
+# 第一步：先打 update_helper（主程序依赖它，CleanDesktopOrganizer.spec 会自动带上）
+python -m PyInstaller update_helper.spec --clean
+
+# 第二步：打 onefile 主程序
 python -m PyInstaller CleanDesktopOrganizer.spec --clean
+```
+
+产物：`dist\CleanDesktopOrganizer.exe`（单文件，约 100MB，含 update_helper）
+
+更新日志：`%TEMP%\update.log`（更新失败时查这个）
diff --git a/__pycache__/shortcut_target.cpython-314.pyc b/__pycache__/shortcut_target.cpython-314.pyc
index ee1076c..b331ab8 100644
Binary files a/__pycache__/shortcut_target.cpython-314.pyc and b/__pycache__/shortcut_target.cpython-314.pyc differ
diff --git a/app_info.py b/app_info.py
index ad0fc0d..4bded36 100644
--- a/app_info.py
+++ b/app_info.py
@@ -1,5 +1,5 @@
 APP_NAME = "牛马软件柜"
-__VERSION__ = "0.0.4"
+__VERSION__ = "0.0.5"
 
 
 def app_title() -> str:
diff --git a/db/__pycache__/__init__.cpython-314.pyc b/db/__pycache__/__init__.cpython-314.pyc
index 788c4ac..a3e0171 100644
Binary files a/db/__pycache__/__init__.cpython-314.pyc and b/db/__pycache__/__init__.cpython-314.pyc differ
diff --git a/db/__pycache__/database.cpython-314.pyc b/db/__pycache__/database.cpython-314.pyc
index 5c3f1a0..90afefa 100644
Binary files a/db/__pycache__/database.cpython-314.pyc and b/db/__pycache__/database.cpython-314.pyc differ
diff --git a/db/database.py b/db/database.py
index 50fbc2d..718b2a1 100644
--- a/db/database.py
+++ b/db/database.py
@@ -5,7 +5,7 @@ import shutil
 # 数据库放到 Windows 常见的 APPDATA 目录（避免写在项目目录）
 APP_NAME = "CleanDesktopOrganizer"
 _SCHEMA_VERSION_KEY = "schema_version"
-LATEST_SCHEMA_VERSION = 1
+LATEST_SCHEMA_VERSION = 7
 
 _PROJECT_DB_PATH = os.path.join(
     os.path.dirname(os.path.dirname(__file__)), "data.db"
@@ -119,8 +119,68 @@ def _apply_migrations(conn: sqlite3.Connection):
         if not _table_has_column(conn, "groups", "folder_path"):
             conn.execute("ALTER TABLE groups ADD COLUMN folder_path TEXT DEFAULT ''")
 
+    def m2():
+        # 桌面文件框
+        conn.execute(
+            """
+            CREATE TABLE IF NOT EXISTS file_boxes (
+                id INTEGER PRIMARY KEY AUTOINCREMENT,
+                title TEXT NOT NULL DEFAULT '文件框',
+                x INTEGER DEFAULT 100,
+                y INTEGER DEFAULT 100,
+                w INTEGER DEFAULT 240,
+                h INTEGER DEFAULT 320,
+                collapsed INTEGER DEFAULT 0,
+                position INTEGER DEFAULT 0,
+                opacity REAL DEFAULT 0.5
+            )
+            """
+        )
+        conn.execute(
+            """
+            CREATE TABLE IF NOT EXISTS file_box_items (
+                id INTEGER PRIMARY KEY AUTOINCREMENT,
+                box_id INTEGER NOT NULL,
+                name TEXT NOT NULL,
+                path TEXT NOT NULL,
+                position INTEGER DEFAULT 0,
+                FOREIGN KEY (box_id) REFERENCES file_boxes(id) ON DELETE CASCADE
+            )
+            """
+        )
+
+    def m3():
+        # 给已存在的 file_boxes 表补 opacity 字段
+        if not _table_has_column(conn, "file_boxes", "opacity"):
+            conn.execute("ALTER TABLE file_boxes ADD COLUMN opacity REAL DEFAULT 0.5")
+
+    def m4():
+        # folder_path：不为空时 FileBox 变成文件夹浏览模式，实时显示该目录内容
+        if not _table_has_column(conn, "file_boxes", "folder_path"):
+            conn.execute("ALTER TABLE file_boxes ADD COLUMN folder_path TEXT DEFAULT ''")
+
+    def m5():
+        # view_mode：拖入模式下的视图方式 —— "icon"（默认）或 "list"
+        if not _table_has_column(conn, "file_boxes", "view_mode"):
+            conn.execute("ALTER TABLE file_boxes ADD COLUMN view_mode TEXT DEFAULT 'icon'")
+
+    def m6():
+        # 把所有已存在的 file_boxes 的 opacity 刷成 0.5（之前是 1.0）
+        conn.execute("UPDATE file_boxes SET opacity=0.5 WHERE opacity IS NULL OR opacity >= 0.99")
+
+    def m7():
+        # group_id：关联主程序分组，非 NULL 时 FileBox 进入"分组联动模式"
+        if not _table_has_column(conn, "file_boxes", "group_id"):
+            conn.execute("ALTER TABLE file_boxes ADD COLUMN group_id INTEGER DEFAULT NULL")
+
     migrations = {
         1: m1,
+        2: m2,
+        3: m3,
+        4: m4,
+        5: m5,
+        6: m6,
+        7: m7,
     }
 
     cur = _get_schema_version(conn)
@@ -320,3 +380,122 @@ def reset_groups_and_items(recreate_default_group: bool = True):
         conn.execute("INSERT INTO groups (name, position) VALUES ('常用程序', 0)")
     conn.commit()
     conn.close()
+
+
+# ── FileBoxes ──────────────────────────────────────────
+def get_file_boxes():
+    conn = get_conn()
+    rows = conn.execute("SELECT * FROM file_boxes ORDER BY position").fetchall()
+    conn.close()
+    return [dict(r) for r in rows]
+
+
+def add_file_box(title: str, x: int = 100, y: int = 100, w: int = 240, h: int = 320) -> int:
+    conn = get_conn()
+    row = conn.execute("SELECT COALESCE(MAX(position), -1) FROM file_boxes").fetchone()
+    pos = (row[0] if row else -1) + 1
+    cur = conn.execute(
+        "INSERT INTO file_boxes (title, x, y, w, h, position) VALUES (?,?,?,?,?,?)",
+        (title, x, y, w, h, pos),
+    )
+    conn.commit()
+    box_id = cur.lastrowid
+    conn.close()
+    return box_id
+
+
+def update_file_box(box_id: int, **kwargs):
+    """更新 file_boxes 记录，支持 title/x/y/w/h/collapsed/group_id/folder_path/view_mode/opacity。"""
+    if not kwargs:
+        return
+    allowed = ("title", "x", "y", "w", "h", "collapsed", "group_id", "folder_path", "view_mode", "opacity")
+    fields = [k for k in kwargs.keys() if k in allowed]
+    if not fields:
+        return
+    conn = get_conn()
+    sets = ", ".join(f"{f}=?" for f in fields)
+    conn.execute(
+        f"UPDATE file_boxes SET {sets} WHERE id=?",
+        [kwargs[f] for f in fields] + [box_id],
+    )
+    conn.commit()
+    conn.close()
+
+
+def create_file_box_from_group(group_id: int) -> int | None:
+    """把已有分组变成桌面文件框（group_id 关联）。返回新 file_boxes.id，失败返回 None。"""
+    conn = get_conn()
+    # 检查分组存在
+    group = conn.execute("SELECT id, name FROM groups WHERE id=?", (group_id,)).fetchone()
+    if not group:
+        conn.close(); return None
+    # 检查是否已有关联的 FileBox（避免重复）
+    existing = conn.execute("SELECT id FROM file_boxes WHERE group_id=?", (group_id,)).fetchone()
+    if existing:
+        conn.close(); return existing["id"]
+    pos_row = conn.execute("SELECT COALESCE(MAX(position), -1) FROM file_boxes").fetchone()
+    pos = (pos_row[0] if pos_row else -1) + 1
+    cur = conn.execute(
+        "INSERT INTO file_boxes (title, x, y, w, h, position, opacity, group_id) VALUES (?,?,?,?,?,?,?,?)",
+        (group["name"], 150, 150, 260, 340, pos, 0.5, group_id),
+    )
+    conn.commit()
+    box_id = cur.lastrowid
+    conn.close()
+    return box_id
+
+
+def delete_file_box(box_id: int):
+    conn = get_conn()
+    conn.execute("DELETE FROM file_box_items WHERE box_id=?", (box_id,))
+    conn.execute("DELETE FROM file_boxes WHERE id=?", (box_id,))
+    conn.commit()
+    conn.close()
+
+
+def get_file_box_items(box_id: int):
+    conn = get_conn()
+    rows = conn.execute(
+        "SELECT * FROM file_box_items WHERE box_id=? ORDER BY position", (box_id,)
+    ).fetchall()
+    conn.close()
+    return [dict(r) for r in rows]
+
+
+def add_file_box_item(box_id: int, name: str, path: str) -> int:
+    conn = get_conn()
+    row = conn.execute(
+        "SELECT COALESCE(MAX(position), -1) FROM file_box_items WHERE box_id=?", (box_id,)
+    ).fetchone()
+    pos = (row[0] if row else -1) + 1
+    cur = conn.execute(
+        "INSERT INTO file_box_items (box_id, name, path, position) VALUES (?,?,?,?)",
+        (box_id, name, path, pos),
+    )
+    conn.commit()
+    item_id = cur.lastrowid
+    conn.close()
+    return item_id
+
+
+def delete_file_box_item(item_id: int):
+    conn = get_conn()
+    conn.execute("DELETE FROM file_box_items WHERE id=?", (item_id,))
+    conn.commit()
+    conn.close()
+
+
+def update_file_box_item(item_id: int, **kwargs):
+    if not kwargs:
+        return
+    fields = [k for k in kwargs.keys() if k in ("name", "path", "position")]
+    if not fields:
+        return
+    conn = get_conn()
+    sets = ", ".join(f"{f}=?" for f in fields)
+    conn.execute(
+        f"UPDATE file_box_items SET {sets} WHERE id=?",
+        [kwargs[f] for f in fields] + [item_id],
+    )
+    conn.commit()
+    conn.close()
diff --git a/main.py b/main.py
index 74a4899..de289de 100644
--- a/main.py
+++ b/main.py
@@ -78,10 +78,16 @@ def _install_requirements_on_startup() -> None:
 
 
 class GlobalHotkey(QAbstractNativeEventFilter):
-    """用 Win32 RegisterHotKey 注册真正的全局快捷键 Alt+`"""
-    _HOTKEY_ID   = 0x4E4D  # 任意唯一 ID
-    _MOD_ALT     = 0x0001
-    _VK_BACKTICK = 0xC0    # VK_OEM_3 = ` 键
+    """
+    Win32 RegisterHotKey 注册两个全局快捷键：
+    - Alt+`  : 唤醒/折叠面板（在"面板↔悬浮球"间切换）
+    - Ctrl+` : 缩小成悬浮球（任何状态都最小化到悬浮球）
+    """
+    _HK_ALT   = 0x4E4D  # Alt+`
+    _HK_CTRL  = 0x4E4E  # Ctrl+`
+    _MOD_ALT  = 0x0001
+    _MOD_CTRL = 0x0002
+    _VK_BACKTICK = 0xC0  # ` 键
 
     def __init__(self, panel: "PanelWindow", ball: "FloatBall"):
         super().__init__()
@@ -91,15 +97,16 @@ class GlobalHotkey(QAbstractNativeEventFilter):
     def install(self):
         if sys.platform != "win32":
             return
-        # 注册线程级别的全局热键，避免因主窗口 hide/show 导致 HWND 重建/失效
-        ctypes.windll.user32.RegisterHotKey(
-            None, self._HOTKEY_ID, self._MOD_ALT, self._VK_BACKTICK
-        )
+        user32 = ctypes.windll.user32
+        user32.RegisterHotKey(None, self._HK_ALT,  self._MOD_ALT,  self._VK_BACKTICK)
+        user32.RegisterHotKey(None, self._HK_CTRL, self._MOD_CTRL, self._VK_BACKTICK)
         QApplication.instance().installNativeEventFilter(self)
 
     def uninstall(self):
         if sys.platform == "win32":
-            ctypes.windll.user32.UnregisterHotKey(None, self._HOTKEY_ID)
+            user32 = ctypes.windll.user32
+            user32.UnregisterHotKey(None, self._HK_ALT)
+            user32.UnregisterHotKey(None, self._HK_CTRL)
         QApplication.instance().removeNativeEventFilter(self)
 
     def nativeEventFilter(self, event_type, message):
@@ -107,18 +114,32 @@ class GlobalHotkey(QAbstractNativeEventFilter):
             import ctypes
             msg = ctypes.cast(int(message), ctypes.POINTER(ctypes.wintypes.MSG)).contents
             WM_HOTKEY = 0x0312
-            if msg.message == WM_HOTKEY and msg.wParam == self._HOTKEY_ID:
-                self._toggle()
+            if msg.message == WM_HOTKEY:
+                if msg.wParam == self._HK_ALT:
+                    self._toggle_alt()
+                elif msg.wParam == self._HK_CTRL:
+                    self._toggle_ctrl()
         return False, 0
 
-    def _toggle(self):
-        if self._panel.is_really_visible():
-            self._panel.minimize_to_ball()
+    def _toggle_alt(self):
+        """Alt+`：只唤醒面板（如果已显示就忽略，不再缩小）"""
+        if self._panel.isVisible():
+            # 已经显示着了 —— 不做任何事（取消原来的缩小行为）
+            # 只尝试把它 raise 到最前
+            self._panel.raise_()
+            self._panel.activateWindow()
         else:
+            # 悬浮球状态 → 唤醒面板
             self._panel.show_near(self._ball.pos(), BALL_SIZE)
             self._panel.raise_()
             self._panel.activateWindow()
 
+    def _toggle_ctrl(self):
+        """Ctrl+`：强制缩小成悬浮球（任何状态都生效）"""
+        if self._panel.isVisible():
+            self._panel.minimize_to_ball()
+        # 已经是悬浮球状态，什么都不做
+
 # ===================== 打包兼容核心函数 =====================
 def get_resource_path(relative_path):
     """
@@ -182,7 +203,9 @@ def _wake_existing_or_exit() -> bool:
 
 
 def main():
-    if not _wake_existing_or_exit():
+    # 外部更新器启动时带 --from-update，跳过单实例检测（旧 mutex 可能还没完全释放）
+    from_update = "--from-update" in sys.argv
+    if not from_update and not _wake_existing_or_exit():
         return
 
     _install_requirements_on_startup()
@@ -216,6 +239,7 @@ def main():
 
     panel._ball_ref = ball
     panel._apply_pin_window_layer()
+    panel._load_file_boxes()
 
     ball.clicked.connect(lambda: panel.show_near(ball.pos(), BALL_SIZE))
     ball.right_clicked.connect(lambda pos: panel.tray.contextMenu().exec(pos))
diff --git a/shortcut_target.py b/shortcut_target.py
index 4e81c18..ab08e0a 100644
--- a/shortcut_target.py
+++ b/shortcut_target.py
@@ -1,12 +1,35 @@
 """将用户选中的 .lnk / .url 解析为实际要存储的路径（目标程序或 URL）。"""
 import base64
 import json
+import locale
 import os
 import re
 import subprocess
 import sys
 
 
+def _decode_subprocess_output(raw: bytes) -> str:
+    """
+    解码子进程输出：优先用系统默认编码，兼容中文 Windows 上 PowerShell 的 GBK 输出，
+    同时也能正确处理 UTF-8 等情况。
+    """
+    if not raw:
+        return ""
+    # 先尝试系统默认编码（中文 Windows 上是 GBK）
+    encodings_to_try = []
+    sys_enc = locale.getpreferredencoding(False)
+    if sys_enc:
+        encodings_to_try.append(sys_enc)
+    # 再尝试 UTF-8（带/不带 BOM）
+    encodings_to_try.extend(["utf-8-sig", "utf-8", "gbk"])
+    for enc in encodings_to_try:
+        try:
+            return raw.decode(enc)
+        except (UnicodeDecodeError, LookupError):
+            continue
+    return raw.decode("utf-8", errors="replace")
+
+
 def _looks_like_shell_lnk(path: str) -> bool:
     """Windows Shell Link 文件头为 4C 00 00 00（扩展名异常时仍可识别）。"""
     try:
@@ -50,14 +73,11 @@ def _resolve_windows_lnk(lnk_path: str) -> str | None:
                 ps,
             ],
             capture_output=True,
-            text=True,
-            encoding="utf-8",
-            errors="replace",
             env=env,
             timeout=15,
             creationflags=getattr(subprocess, "CREATE_NO_WINDOW", 0),
         )
-        raw = (r.stdout or "").strip().lstrip("\ufeff")
+        raw = _decode_subprocess_output(r.stdout or b"").strip().lstrip("\ufeff")
         if not raw:
             return None
         data = json.loads(raw)
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diff --git a/ui/__pycache__/theme.cpython-314.pyc b/ui/__pycache__/theme.cpython-314.pyc
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diff --git a/ui/box.py b/ui/box.py
new file mode 100644
index 0000000..a4f8f8b
--- /dev/null
+++ b/ui/box.py
@@ -0,0 +1,954 @@
+# -*- coding: utf-8 -*-
+"""桌面文件框：可拖动、可缩放、可吸附、可调透明度、可显示文件夹内容的独立桌面窗口。"""
+import os
+import sys
+import subprocess
+
+from PyQt6.QtWidgets import (
+    QWidget, QVBoxLayout, QHBoxLayout, QLabel, QPushButton, QMenu, QListView,
+    QMessageBox, QApplication, QSizePolicy, QSlider, QSpinBox, QDialog,
+    QDialogButtonBox, QFormLayout, QAbstractItemView, QFileDialog,
+)
+from PyQt6.QtCore import (
+    Qt, QPoint, QRect, QRectF, QSize, QPropertyAnimation, QEasingCurve, QTimer,
+    QDir, QModelIndex, QUrl,
+)
+from PyQt6.QtGui import (
+    QPainter, QColor, QPen, QBrush, QIcon, QPixmap, QRegion, QPainterPath,
+    QFileSystemModel, QStandardItemModel, QStandardItem,
+)
+import qtawesome as qta
+
+from db import database
+from ui.item import extract_icon
+import ui.theme as theme
+import ui.dialog_style as dialog_style
+import shortcut_target
+
+
+# ── 文件夹模式：双击条目打开文件/进入子目录 ────────────
+class FolderListView(QListView):
+    """显示文件夹内容的列表视图（文件夹浏览模式用）。"""
+
+    def __init__(self, model: QFileSystemModel, root_path: str, parent=None):
+        super().__init__(parent)
+        self.setModel(model)
+        self.setRootIndex(model.index(root_path))
+        self.setViewMode(QListView.ViewMode.IconMode)
+        self.setResizeMode(QListView.ResizeMode.Adjust)
+        self.setMovement(QListView.Movement.Static)
+        self.setUniformItemSizes(True)
+        self.setIconSize(QSize(40, 40))
+        self.setGridSize(QSize(72, 88))
+        self.setSpacing(4)
+        self.setWordWrap(True)
+        self.setVerticalScrollMode(QAbstractItemView.ScrollMode.ScrollPerPixel)
+        self.setHorizontalScrollMode(QAbstractItemView.ScrollMode.ScrollPerPixel)
+        self.setEditTriggers(QAbstractItemView.EditTrigger.NoEditTriggers)
+        self.doubleClicked.connect(self._on_double_clicked)
+        # customContextMenuPolicy 由 FileBox._install_drag_filter_recursive 统一设置
+        self.setStyleSheet(
+            """
+            QListView { background:transparent; color:#ddd; border:none;
+                        font-size:11px; outline:none; }
+            QListView::item { padding:4px; border-radius:4px; }
+            QListView::item:hover { background:rgba(74,158,255,30); }
+            QListView::item:selected { background:rgba(74,158,255,50); }
+            """
+        )
+
+    def _on_double_clicked(self, index: QModelIndex):
+        model = self.model()
+        path = model.filePath(index)
+        if not path or not os.path.exists(path): return
+        if os.path.isdir(path):
+            self.setRootIndex(index)
+        else:
+            try: os.startfile(path)
+            except Exception:
+                try: subprocess.Popen([path], creationflags=getattr(subprocess, "CREATE_NO_WINDOW", 0))
+                except Exception as e: dialog_style.warning(self, "打开失败", str(e))
+
+
+_MENU_QSS = """
+QMenu { background:#2b2b2b; color:#ddd; border:1px solid #444; padding:4px; border-radius:6px; }
+QMenu::item { padding:6px 16px; border-radius:3px; }
+QMenu::item:selected { background:#3a5a8a; }
+"""
+
+
+# ── FileBox 窗口 ───────────────────────────────────────
+# ── 全局圆角常量（QSS 必须一致） ──────────────────────────
+# 8px 与 Win11 DWMWCP_ROUND 的系统裁剪半径贴合：
+# QSS 半径 > DWM 半径时（如 12px），圆弧外 8~12px 环带会露出方形亚克力底
+RADIUS = 8
+
+
+class FileBox(QWidget):
+    """桌面文件框：两种模式 —— 拖入卡片 / 文件夹浏览。"""
+
+    MIN_W = 180
+    MIN_H = 200
+    _DRAG_MARGIN = 8
+    _SNAP_THRESHOLD = 15
+    _BOX_GAP = 2
+
+    _instances: list["FileBox"] = []
+    _panel_ref = None
+
+    def __init__(self, box_data: dict):
+        super().__init__()
+        self._box_data = box_data
+        self._box_id = box_data["id"]
+        self._collapsed = bool(box_data.get("collapsed", 0))
+        self._opacity = float(box_data.get("opacity", 0.5))
+        self._folder_path = (box_data.get("folder_path") or "").strip()
+        self._group_id = box_data.get("group_id")  # None 或 int
+        # 模式优先级：group_id > folder_path > 拖入
+        self._is_group_linked = self._group_id is not None
+        self._is_folder_mode = (not self._is_group_linked) and bool(self._folder_path)
+        self._view_mode = (box_data.get("view_mode") or "icon").strip()
+        if self._view_mode not in ("icon", "list"):
+            self._view_mode = "icon"
+
+        self._drag_pos: QPoint | None = None
+        self._resize_edge: str | None = None
+        self._resize_start_global: QPoint | None = None
+        self._resize_start_geo: QRect | None = None
+        self._save_timer = QTimer(self)
+        self._save_timer.setSingleShot(True)
+        self._save_timer.setInterval(500)
+        self._save_timer.timeout.connect(self._save_all)
+
+        # ⚠️ 顺序关键：先设 flags，再设透明属性
+        # setWindowFlags() 会重建原生窗口并丢掉 WA_TranslucentBackground，
+        # 属性若设在 flags 之前 = 透明失效 = QSS 圆角画在不透明方形窗口上（直角根因）
+        self._apply_flags()
+        self.setAttribute(Qt.WidgetAttribute.WA_TranslucentBackground)
+        self.setAcceptDrops(True)
+        self.setMouseTracking(True)
+
+        w = max(self.MIN_W, int(box_data.get("w", 240)))
+        h = max(self.MIN_H, int(box_data.get("h", 320)))
+        self.setGeometry(int(box_data.get("x", 100)), int(box_data.get("y", 100)), w, h)
+
+        self._build_ui()
+        self._apply_theme()
+        # 窗口本体强制透明（防止 Qt/palette 画默认背景色透出来）
+        self.setStyleSheet("FileBox { background: transparent; }")
+        # Windows 11: 让 DWM 在 OS 层强制圆角（物理裁剪，不依赖 QSS/半透明）
+        self._apply_win11_round_corners()
+        # 圆角和透明度现在完全靠 QSS（跟 dock.py 同款 container 方案），
+        # 不再需要 setWindowOpacity / _update_mask / paintEvent 自绘
+
+        FileBox._instances.append(self)
+
+        if self._is_folder_mode:
+            self._setup_folder_model()
+
+        if self._collapsed:
+            self._collapse_content()
+
+    # ── Flags ──────────────────────────────────────────────
+    def _apply_flags(self):
+        # Tool：不出现在任务栏、不在 Alt+Tab 切换列表里
+        # FramelessWindowHint：无边框
+        # NoDropShadowWindowHint 不加——它会杀死 layered window 路径 → WA_TranslucentBackground 失效
+        self.setWindowFlags(Qt.WindowType.FramelessWindowHint | Qt.WindowType.Tool)
+
+    def _apply_win11_round_corners(self):
+        """Windows 11: DWMWA_WINDOW_CORNER_PREFERENCE(33) = DWMWCP_ROUND(2)。
+        让 DWM 在 OS 层物理裁剪窗口四角 —— 无边框工具窗口默认是直角，
+        这是唯一 100% 生效的圆角方案（dock 主面板靠 Win32 合成 API 也拿到了同样效果）。
+        Windows 10 无此 API，静默失败，由 QSS border-radius + 半透明兜底。"""
+        if sys.platform != "win32":
+            return
+        try:
+            import ctypes
+            hwnd = int(self.winId())  # 强制创建原生窗口
+            pref = ctypes.c_int(2)    # DWMWCP_ROUND
+            ctypes.windll.dwmapi.DwmSetWindowAttribute(
+                hwnd, 33, ctypes.byref(pref), ctypes.sizeof(pref)
+            )
+        except Exception:
+            pass
+
+    def resizeEvent(self, event):
+        super().resizeEvent(event)
+
+    def showEvent(self, event):
+        super().showEvent(event)
+        # 保险：窗口若被重建（flags 变更/系统回收），透明属性、DWM 圆角、
+        # Win32 磨砂合成全部会丢，每次 show 重新应用（幂等）
+        self.setAttribute(Qt.WidgetAttribute.WA_TranslucentBackground, True)
+        self._apply_win11_round_corners()
+        self._apply_win32_blur(theme.name() == "dark")
+
+    # ── UI 构建 ────────────────────────────────────────────
+    def _build_ui(self):
+        # FileBox 自身：透明背景（靠 WA_TranslucentBackground）
+        # 里面 container 用 QSS 画圆角 + 背景 + border（跟 dock.py 同款）
+        outer = QVBoxLayout(self)
+        outer.setContentsMargins(1, 1, 1, 1); outer.setSpacing(0)
+
+        self._container = QWidget()
+        self._container.setObjectName("container")
+        root = QVBoxLayout(self._container)
+        root.setContentsMargins(0, 0, 0, 0); root.setSpacing(0)
+        outer.addWidget(self._container)
+
+        self._title_bar = QWidget()
+        self._title_bar.setObjectName("title_bar")
+        self._title_bar.setFixedHeight(28); self._title_bar.setAcceptDrops(True)
+        h = QHBoxLayout(self._title_bar); h.setContentsMargins(10, 0, 6, 0); h.setSpacing(2)
+
+        self._title_label = QLabel(self._box_data.get("title", "文件框"))
+        self._title_label.setCursor(Qt.CursorShape.PointingHandCursor)
+        self._title_label.setAcceptDrops(True)
+        self._title_label.mouseDoubleClickEvent = self._rename_box_title
+        h.addWidget(self._title_label); h.addStretch()
+
+        if self._is_folder_mode:
+            h.addWidget(self._mk_title_btn("fa5s.folder-open", "选择文件夹", self._choose_folder))
+            h.addWidget(self._mk_title_btn("fa5s.times", "切换为拖入模式", self._convert_to_drag_mode))
+        else:
+            h.addWidget(self._mk_title_btn("fa5s.pen", "重命名", self._rename_box_title))
+            # 视图切换按钮（只在拖入模式显示）
+            self._view_btn = self._mk_title_btn(
+                "fa5s.th-large" if self._view_mode == "list" else "fa5s.th",
+                "切换列表/图标视图", self._toggle_view_mode,
+            )
+            h.addWidget(self._view_btn)
+
+        h.addWidget(self._mk_title_btn("fa5s.adjust", "透明度（所有框）", self._open_opacity_dialog))
+        h.addWidget(self._mk_title_btn("fa5s.minus", "最小化", self._toggle_collapse))
+
+        self._close_btn = QPushButton()
+        self._close_btn.setFixedSize(22, 22); self._close_btn.setAcceptDrops(True)
+        self._close_btn.setStyleSheet(
+            "QPushButton { border:none; background:transparent; border-radius:4px; }"
+            "QPushButton:hover { background:#e55; color:white; }"
+        )
+        self._close_btn.setIcon(qta.icon("fa5s.times", color="#aaa"))
+        self._close_btn.setIconSize(QSize(11, 11)); self._close_btn.setToolTip("关闭")
+        self._close_btn.clicked.connect(self._close_box)
+        h.addWidget(self._close_btn)
+
+        root.addWidget(self._title_bar)
+
+        self._content = QWidget(); self._content.setAcceptDrops(True)
+        self._content.setStyleSheet("QWidget { background: transparent; }")
+        self._content_layout = QVBoxLayout(self._content)
+        self._content_layout.setContentsMargins(6, 4, 6, 6); self._content_layout.setSpacing(4)
+
+        if self._is_folder_mode:
+            self._build_folder_content()
+        else:
+            self._build_drag_content()
+
+        root.addWidget(self._content, 1)
+        self._install_drag_filter_recursive()
+
+    # ── 拖入卡片内容（QListView + QStandardItemModel） ──────
+    def _build_drag_content(self):
+        """拖入卡片模式：用 QListView + QStandardItemModel，支持图标/列表两种视图。"""
+        self._item_model = QStandardItemModel(self)
+        self._item_list = QListView(self._content)
+        self._item_list.setModel(self._item_model)
+        # customContextMenuPolicy 由 FileBox._install_drag_filter_recursive 统一设置
+        self._item_list.doubleClicked.connect(self._on_item_double_clicked)
+        self._item_list.setEditTriggers(QAbstractItemView.EditTrigger.NoEditTriggers)
+        self._item_list.setSelectionMode(QAbstractItemView.SelectionMode.ExtendedSelection)  # ⚠️ 必须 ExtendedSelection 才支持拖框选
+        self._item_list.setDragEnabled(False)  # 关掉内部拖（防止和外部文件拖放冲突）
+        self._item_list.setAcceptDrops(True)
+        self._item_list.setStyleSheet(
+            """
+            QListView { background:transparent; color:#ddd; border:none;
+                        font-size:11px; outline:none; }
+            QListView::item { padding:3px; border-radius:4px; }
+            QListView::item:hover { background:rgba(74,158,255,30); }
+            QListView::item:selected { background:rgba(74,158,255,50); }
+            """
+        )
+        self._apply_view_mode()
+        self._content_layout.addWidget(self._item_list)
+
+        # 空提示
+        self._empty_label = QLabel("拖文件进来")
+        self._empty_label.setAlignment(Qt.AlignmentFlag.AlignCenter)
+        self._empty_label.setStyleSheet("color:#555; font-size:11px; background:transparent;")
+        self._content_layout.addWidget(self._empty_label)
+        self.refresh_items()
+
+    def _apply_view_mode(self):
+        """根据 self._view_mode 切换 QListView 显示方式。"""
+        if self._view_mode == "list":
+            self._item_list.setViewMode(QListView.ViewMode.ListMode)
+            self._item_list.setIconSize(QSize(16, 16))
+            self._item_list.setGridSize(QSize())
+            self._item_list.setMovement(QListView.Movement.Static)
+            self._item_list.setResizeMode(QListView.ResizeMode.Adjust)
+            self._item_list.setSpacing(2)
+            self._item_list.setWordWrap(False)
+        else:
+            self._item_list.setViewMode(QListView.ViewMode.IconMode)
+            self._item_list.setIconSize(QSize(28, 28))
+            self._item_list.setGridSize(QSize(72, 88))
+            self._item_list.setMovement(QListView.Movement.Static)
+            self._item_list.setResizeMode(QListView.ResizeMode.Adjust)
+            self._item_list.setSpacing(4)
+            self._item_list.setWordWrap(True)
+
+    def _toggle_view_mode(self):
+        self._view_mode = "list" if self._view_mode == "icon" else "icon"
+        self._apply_view_mode()
+        # 换按钮图标
+        icon_name = "fa5s.th-large" if self._view_mode == "list" else "fa5s.th"
+        self._view_btn.setIcon(qta.icon(icon_name, color="#888"))
+        self._save_timer.start()
+
+    # ── 文件夹浏览内容 ──────────────────────────────────────
+    def _build_folder_content(self):
+        self._fs_model = QFileSystemModel(self)
+        self._fs_model.setFilter(QDir.Filter.AllDirs | QDir.Filter.Files | QDir.Filter.NoDotAndDotDot)
+        self._fs_model.setReadOnly(True)
+        self._list_view = FolderListView(self._fs_model, self._folder_path, self._content)
+        self._content_layout.addWidget(self._list_view)
+        self._empty_label = QLabel("文件夹不存在")
+        self._empty_label.setAlignment(Qt.AlignmentFlag.AlignCenter)
+        self._empty_label.setStyleSheet("color:#555; font-size:11px; background:transparent;")
+        if not os.path.isdir(self._folder_path):
+            self._list_view.hide(); self._empty_label.show()
+            self._content_layout.addWidget(self._empty_label)
+
+    def _setup_folder_model(self): pass
+    def _refresh_folder(self):
+        if not self._is_folder_mode or not os.path.isdir(self._folder_path): return
+        self._fs_model.setRootPath(self._folder_path)
+        self._list_view.setRootIndex(self._fs_model.index(self._folder_path))
+
+    def _convert_to_drag_mode(self):
+        ret = dialog_style.question(self, "确认", "切换为拖入模式？（文件夹路径会被清除）", default_button=QMessageBox.StandardButton.No)
+        if ret != QMessageBox.StandardButton.Yes: return
+        database.update_file_box(self._box_id, folder_path="")
+        self._folder_path = ""; self._is_folder_mode = False
+        while self._content_layout.count():
+            item = self._content_layout.takeAt(0)
+            w = item.widget()
+            if w: w.setParent(None); w.deleteLater()
+        self._build_drag_content()
+        self._install_drag_filter_recursive()
+        # 重建标题栏按钮
+        while self._title_bar.layout().count():
+            item = self._title_bar.layout().takeAt(0)
+            w = item.widget()
+            if w: w.setParent(None); w.deleteLater()
+        self._build_title_bar_after_convert()
+
+    def _build_title_bar_after_convert(self):
+        h = self._title_bar.layout()
+        self._title_label.setParent(None)
+        # 重新构建：label + stretch + rename + view + opacity + minimize + close
+        h.addWidget(self._title_label); h.addStretch()
+        h.addWidget(self._mk_title_btn("fa5s.pen", "重命名", self._rename_box_title))
+        self._view_btn = self._mk_title_btn(
+            "fa5s.th-large" if self._view_mode == "list" else "fa5s.th",
+            "切换列表/图标视图", self._toggle_view_mode,
+        )
+        h.addWidget(self._view_btn)
+        h.addWidget(self._mk_title_btn("fa5s.adjust", "透明度（所有框）", self._open_opacity_dialog))
+        h.addWidget(self._mk_title_btn("fa5s.minus", "最小化", self._toggle_collapse))
+        h.addWidget(self._close_btn)
+
+    def _choose_folder(self):
+        path = QFileDialog.getExistingDirectory(self, "选择文件夹", self._folder_path or os.path.expanduser("~"))
+        if not path: return
+        self._folder_path = path
+        self._box_data["title"] = os.path.basename(path) or path
+        self._title_label.setText(self._box_data["title"])
+        database.update_file_box(self._box_id, folder_path=path, title=self._box_data["title"])
+        self._refresh_folder()
+
+    def _mk_title_btn(self, icon_name, tip, callback):
+        btn = QPushButton(); btn.setFixedSize(22, 22); btn.setAcceptDrops(True)
+        btn.setStyleSheet(
+            "QPushButton { border:none; background:transparent; border-radius:4px; }"
+            "QPushButton:hover { background:rgba(255,255,255,30); }"
+        )
+        btn.setIcon(qta.icon(icon_name, color="#888"))
+        btn.setIconSize(QSize(11, 11)); btn.setToolTip(tip)
+        btn.clicked.connect(callback)
+        return btn
+
+    # ── FileBox 右键菜单（CustomContextMenu 信号 —— 覆盖所有子控件） ──
+    def _install_drag_filter_recursive(self):
+        # 统一用 CustomContextMenu 策略：Qt 会调用 customContextMenuRequested(global_pos)
+        # 对 FileBox 和所有子控件设 CustomContextMenuPolicy，然后统一转发到 FileBox._on_box_context_menu
+        self.setContextMenuPolicy(Qt.ContextMenuPolicy.CustomContextMenu)
+        self.customContextMenuRequested.connect(self._on_box_context_menu)
+
+        for child in self.findChildren(QWidget):
+            child.setAcceptDrops(True)
+            child.setContextMenuPolicy(Qt.ContextMenuPolicy.CustomContextMenu)
+            # lambda 默认参数 trick 绑定当前 child（避免循环变量 late-binding bug）
+            child.customContextMenuRequested.connect(
+                lambda pos, c=child: self.customContextMenuRequested.emit(c.mapToGlobal(pos))
+            )
+
+        # 顶层容器装拖放 filter（只拦 DragEnter/Drop，不拦鼠标）
+        for w in (self._content, self._title_bar):
+            if w: w.installEventFilter(self)
+
+        self.installEventFilter(self)
+
+    # ── 主题 ────────────────────────────────────────────
+    @staticmethod
+    def _with_opacity(rgba_str: str, opacity: float) -> str:
+        """给 rgba(...) 字符串替换 alpha 值。opacity 是 0~1 的浮点数。
+        如果输入是 #rrggbb 也先转换成 rgba(r,g,b,a)。"""
+        import re
+        s = rgba_str.strip().lower()
+        nums = [int(x) for x in re.findall(r"\d+", s)]
+        if len(nums) >= 3:
+            a = max(0, min(255, int(opacity * 255)))
+            return f"rgba({nums[0]},{nums[1]},{nums[2]},{a})"
+        return rgba_str
+
+    def _apply_theme(self):
+        t = theme.current(); is_dark = theme.name() == "dark"
+        # ── container：圆角 + 半透明背景 + border（跟 dock.py 同款） ──
+        # panel_bg 的 alpha 由 _opacity 控制（覆盖 theme 自带 alpha）
+        panel_bg_rgba = self._with_opacity(t.get("panel_bg", "#1e1e1e"), self._opacity)
+        # panel_border 保留 theme 自带 alpha（装饰线，不二次乘）
+        panel_border_rgba = t.get("panel_border", "#888")
+        self._container.setStyleSheet(
+            f"""
+            QWidget#container {{
+                background: {panel_bg_rgba};
+                border: 1px solid {panel_border_rgba};
+                border-radius: {RADIUS}px;
+            }}
+            """
+        )
+        # ── title_bar：比 container 稍深/稍浅，顶部圆角对齐 ──
+        # 自己造 header 颜色（不用 theme.header_bg，它是叠加色语义怪）
+        if is_dark:
+            header_rgb = (50, 50, 50)   # 比 dark panel_bg 稍亮
+        else:
+            header_rgb = (230, 230, 230)  # 比 light panel_bg 稍深
+        header_a = max(0, min(255, int(self._opacity * 255)))
+        title_fg = t.get("search_color", "#ddd")
+        self._title_bar.setStyleSheet(
+            f"""
+            QWidget#title_bar {{
+                background: rgba({header_rgb[0]},{header_rgb[1]},{header_rgb[2]},{header_a});
+                border-top-left-radius: {RADIUS}px;
+                border-top-right-radius: {RADIUS}px;
+            }}
+            """
+        )
+        self._title_label.setStyleSheet(
+            f"color:{title_fg}; font-size:12px; font-weight:bold; background:transparent;"
+        )
+        # item 卡片文字色跟随主题
+        if hasattr(self, "_item_list"):
+            item_fg = t.get("item_name_color", "#ddd")
+            self._item_list.setStyleSheet(
+                f"""
+                QListView {{ background:transparent; color:{item_fg}; border:none;
+                            font-size:11px; outline:none; }}
+                QListView::item {{ padding:3px; border-radius:4px; }}
+                QListView::item:hover {{ background:rgba(74,158,255,30); }}
+                QListView::item:selected {{ background:rgba(74,158,255,50); }}
+                """
+            )
+        # ── 关键：Win32 磨砂合成（跟 dock.py 完全同款） ──
+        # dock 的半透明+圆角从来不靠 Qt 的 WA_TranslucentBackground，
+        # 而是靠这个 accent API：DWM 把窗口变成磨砂材质 + Win11 自动圆角。
+        # 没有它，FileBox 就是黑色不透明直角窗口（Qt 透明路径在本机不生效）。
+        self._apply_win32_blur(is_dark)
+
+    def _apply_win32_blur(self, is_dark: bool):
+        """给窗口应用 Win32 磨砂合成（ACCENT_ENABLE_ACRYLICBLURBEHIND）。
+        复刻 dock.py 的做法：窗口获得 DWM 半透明磨砂材质，Win11 自动圆角。"""
+        if sys.platform != "win32":
+            return
+        try:
+            import ctypes
+            from ctypes import windll, sizeof, byref, c_int, Structure
+
+            class ACCENT_POLICY(Structure):
+                _fields_ = [
+                    ("AccentState", c_int),
+                    ("AccentFlags", c_int),
+                    ("GradientColor", c_int),
+                    ("AnimationId", c_int),
+                ]
+
+            class WINDOWCOMPOSITIONATTRIBDATA(Structure):
+                _fields_ = [
+                    ("Attribute", c_int),
+                    ("Data", ctypes.c_void_p),
+                    ("SizeOfData", c_int),
+                ]
+
+            hwnd = int(self.winId())
+            accent = ACCENT_POLICY()
+            accent.AccentState = 4  # ACCENT_ENABLE_ACRYLICBLURBEHIND
+            # 磨砂底色：主题色 + 固定 alpha（跟 dock 一致用 0x90）；
+            # 精细透明度仍由 QSS container 层的 _opacity 控制（两层叠加）
+            if is_dark:
+                accent.GradientColor = 0x901E1E1E  # ABGR: 56% + RGB(30,30,30)
+            else:
+                accent.GradientColor = 0x90FFFFFF  # ABGR: 56% + RGB(255,255,255)
+            accent.AccentFlags = 2
+
+            data = WINDOWCOMPOSITIONATTRIBDATA()
+            data.Attribute = 19  # WCA_ACCENT_POLICY
+            data.Data = ctypes.cast(byref(accent), ctypes.c_void_p)
+            data.SizeOfData = sizeof(accent)
+
+            windll.user32.SetWindowCompositionAttribute(hwnd, byref(data))
+        except Exception:
+            pass
+
+    # ── 事件过滤器 ──────────────────────────────────────
+    # 只拦两类事件：1) 拖放（所有子控件）；2) 边缘 resize（仅 FileBox 自身）
+    # 中间区域的鼠标事件 → 完全放行给 QListView 处理框选/选择
+    def eventFilter(self, obj, event):
+        et = event.type()
+
+        # ✅ 所有子控件的拖放事件 → 统一转给 FileBox
+        if et == event.Type.DragEnter: self.dragEnterEvent(event); return True
+        if et == event.Type.DragMove: self.dragMoveEvent(event); return True
+        if et == event.Type.Drop: self.dropEvent(event); return True
+
+        # ✅ FileBox 自身边缘区域的鼠标 → resize / 全局 cursor
+        if obj is self:
+            if et == event.Type.MouseButtonPress and event.button() == Qt.MouseButton.LeftButton:
+                local = event.pos()
+                edge = self._edge_at(local)
+                if edge or self._resize_edge:
+                    self.mousePressEvent(event); return True
+            if et == event.Type.MouseMove:
+                if self._resize_edge:
+                    self.mouseMoveEvent(event); return True
+                edge = self._edge_at(event.pos())
+                CUR = {
+                    "r": Qt.CursorShape.SizeHorCursor, "l": Qt.CursorShape.SizeHorCursor,
+                    "b": Qt.CursorShape.SizeVerCursor,  "t": Qt.CursorShape.SizeVerCursor,
+                    "br": Qt.CursorShape.SizeFDiagCursor, "tl": Qt.CursorShape.SizeFDiagCursor,
+                    "bl": Qt.CursorShape.SizeBDiagCursor, "tr": Qt.CursorShape.SizeBDiagCursor,
+                }
+                self.setCursor(CUR.get(edge, Qt.CursorShape.ArrowCursor))
+            if et == event.Type.MouseButtonRelease and self._resize_edge:
+                self.mouseReleaseEvent(event); return True
+
+        # ❌ 子控件的所有鼠标事件 → 放行！QListView 需要处理框选/选择
+        # ❌ FileBox 中间区域的鼠标 → 放行！(标题栏/子控件自己处理)
+        return super().eventFilter(obj, event)
+
+    def _handle_drop(self, event):
+        if self._is_folder_mode:
+            target = self._folder_path
+            added = False
+            for url in event.mimeData().urls():
+                src = url.toLocalFile()
+                if not src: continue
+                try:
+                    dest = os.path.join(target, os.path.basename(src))
+                    os.rename(src, dest); added = True
+                except Exception:
+                    try:
+                        import shutil; shutil.move(src, dest); added = True
+                    except Exception: pass
+            if added: self._refresh_folder()
+        else:
+            added = False
+            for url in event.mimeData().urls():
+                path = url.toLocalFile()
+                if not path: continue
+                store = shortcut_target.path_for_storage(path)
+                name = shortcut_target.item_name_from_sources(path, store)
+                if self._is_group_linked:
+                    database.add_item(self._group_id, name, store); added = True
+                else:
+                    database.add_file_box_item(self._box_id, name, store); added = True
+            if added:
+                self.refresh_items()
+                self._notify_panel_refresh()
+        event.acceptProposedAction()
+
+    def _notify_panel_refresh(self):
+        """通知主程序刷新分组（分组联动模式下 FileBox 改动需要同步到主面板）。"""
+        if FileBox._panel_ref and hasattr(FileBox._panel_ref, "refresh_groups"):
+            try: FileBox._panel_ref.refresh_groups()
+            except Exception: pass
+
+    # ── 拖入 / 分组模式：刷新卡片到 QStandardItemModel ───────
+    def refresh_items(self):
+        if self._is_folder_mode or not hasattr(self, "_item_model"): return
+        if self._is_group_linked:
+            items = database.get_items(self._group_id)
+        else:
+            items = database.get_file_box_items(self._box_id)
+        self._item_model.clear()
+        for it in items:
+            icon = extract_icon(it["path"])
+            item = QStandardItem(icon, it["name"])
+            item.setData(it["path"], Qt.ItemDataRole.UserRole)
+            item.setData(it["id"], Qt.ItemDataRole.UserRole + 1)
+            self._item_model.appendRow(item)
+        count = len(items)
+        self._empty_label.setVisible(count == 0)
+        self._item_list.setVisible(count > 0)
+
+    def _open_item(self, idx: QModelIndex):
+        """打开 QListView 里的某个 item（双击 or 右键）。"""
+        path = idx.data(Qt.ItemDataRole.UserRole)
+        if not path or not os.path.exists(path):
+            dialog_style.warning(self, "打不开", f"文件不存在：\n{path}"); return
+        try: os.startfile(path)
+        except Exception:
+            try: subprocess.Popen([path], creationflags=getattr(subprocess, "CREATE_NO_WINDOW", 0))
+            except Exception as e: dialog_style.warning(self, "启动失败", str(e))
+
+    def _on_item_double_clicked(self, idx: QModelIndex):
+        self._open_item(idx)
+
+    def _toggle_collapse(self):
+        self._collapsed = not self._collapsed
+        if self._collapsed: self._content.hide(); self.setFixedHeight(36)
+        else:
+            self._content.show(); self.setMinimumHeight(self.MIN_H); self.setMaximumHeight(16777215)
+            self.resize(self.width(), max(self.MIN_H, int(self._box_data.get("h", 320))))
+        self._save_timer.start()
+
+    def _rename_box_title(self, _event=None):
+        title, ok = dialog_style.get_text(self, "重命名文件框", "新标题:", text=self._box_data.get("title", "文件框"))
+        if not ok or not title.strip(): return
+        title = title.strip(); self._box_data["title"] = title; self._title_label.setText(title)
+        database.update_file_box(self._box_id, title=title)
+
+    # ── 透明度（所有框联动） ──────────────────────────────
+    def _open_opacity_dialog(self, _event=None):
+        all_boxes = [b for b in FileBox._instances if b.isVisible()]
+        if not all_boxes: return
+        dlg = QDialog(self); dlg.setWindowTitle("所有文件框透明度")
+        dlg.setStyleSheet(
+            """
+            QDialog { background:#2b2b2b; color:#ddd; border:1px solid #444; }
+            QLabel { color:#ddd; }
+            QSlider::groove:horizontal { height:6px; background:#444; border-radius:3px; }
+            QSlider::handle:horizontal { background:#4a9eff; width:14px; height:14px; margin:-4px 0; border-radius:7px; }
+            QSpinBox { background:#3a3a3a; color:#ddd; border:1px solid #555; border-radius:4px; padding:3px; width:60px; }
+            QPushButton { background:#3a3a3a; color:#ddd; border:1px solid #555; border-radius:4px; padding:5px 16px; }
+            QPushButton:hover { background:#4a4a4a; }
+            """
+        )
+        form = QFormLayout(dlg)
+        slider = QSlider(Qt.Orientation.Horizontal); slider.setRange(20, 100); slider.setValue(int(self._opacity * 100))
+        spin = QSpinBox(); spin.setRange(20, 100); spin.setSuffix(" %"); spin.setValue(int(self._opacity * 100))
+        def apply(v: int):
+            """改 _opacity + 重设 QSS（透明度现在在 QSS rgba 里）。"""
+            for b in FileBox._instances:
+                b._opacity = v / 100.0
+                b._apply_theme()
+        slider.valueChanged.connect(lambda v: (spin.setValue(v), apply(v)))
+        spin.valueChanged.connect(lambda v: (slider.setValue(v), apply(v)))
+        form.addRow("背景不透明度:", slider); form.addRow("数值:", spin)
+        hint = QLabel("只影响文件框背景色，标题和图标始终清晰"); hint.setStyleSheet("color:#888; font-size:10px;")
+        form.addRow("", hint)
+        btns = QDialogButtonBox(QDialogButtonBox.StandardButton.Ok | QDialogButtonBox.StandardButton.Cancel)
+        btns.button(QDialogButtonBox.StandardButton.Ok).setText("确定")
+        btns.button(QDialogButtonBox.StandardButton.Cancel).setText("取消")
+        btns.accepted.connect(dlg.accept); btns.rejected.connect(dlg.reject); form.addRow(btns)
+        original = {b._box_id: b._opacity for b in FileBox._instances}
+        if dlg.exec() == QDialog.DialogCode.Accepted:
+            opacity = spin.value() / 100.0
+            for b in FileBox._instances:
+                b._opacity = opacity
+                database.update_file_box(b._box_id, opacity=opacity)
+        else:
+            for b in FileBox._instances:
+                b._opacity = original.get(b._box_id, 1.0)
+                b._apply_theme()
+
+    def _close_box(self):
+        ret = dialog_style.question(
+            self, "确认",
+            f"关闭文件框「{self._box_data.get('title', '')}」？\n文件框会保存，下次启动仍然显示。",
+            default_button=QMessageBox.StandardButton.No,
+        )
+        if ret != QMessageBox.StandardButton.Yes: return
+        database.update_file_box(self._box_id, collapsed=0); self.close()
+
+    def _delete_box(self):
+        """彻底删除文件框：DB 里删掉所有记录 + 从 _instances 移除 + 关闭窗口。"""
+        ret = dialog_style.question(
+            self, "确认删除",
+            f"确定删除文件框「{self._box_data.get('title', '')}」？\n⚠️ 不可恢复，里面的条目也会一并删除。",
+            default_button=QMessageBox.StandardButton.No,
+        )
+        if ret != QMessageBox.StandardButton.Yes: return
+        database.delete_file_box(self._box_id)
+        if self in FileBox._instances: FileBox._instances.remove(self)
+        self.close()  # 触发 closeEvent → _save_all + remove from instances（重复 remove 安全）
+
+    # ── 鼠标事件 ──────────────────────────────────────────
+    def _edge_at(self, local: QPoint) -> str | None:
+        x, y = local.x(), local.y(); w, h = self.width(), self.height(); m = self._DRAG_MARGIN
+        l, r, t, b = x <= m, x >= w - m, y <= m, y >= h - m
+        if t and l: return "tl"
+        if t and r: return "tr"
+        if b and l: return "bl"
+        if b and r: return "br"
+        if t: return "t"
+        if b: return "b"
+        if l: return "l"
+        if r: return "r"
+        return None
+
+    def mousePressEvent(self, event):
+        if event.button() != Qt.MouseButton.LeftButton: return super().mousePressEvent(event)
+        local = event.pos()
+        if self._title_bar.geometry().contains(local):
+            self._drag_pos = event.globalPosition().toPoint() - self.frameGeometry().topLeft(); return
+        edge = self._edge_at(local)
+        if edge:
+            self._resize_edge = edge
+            self._resize_start_global = event.globalPosition().toPoint()
+            self._resize_start_geo = QRect(self.geometry()); return
+        super().mousePressEvent(event)
+
+    def mouseMoveEvent(self, event):
+        gp = event.globalPosition().toPoint()
+        if self._resize_edge and event.buttons() & Qt.MouseButton.LeftButton: self._do_resize(gp); return
+        if self._drag_pos and event.buttons() & Qt.MouseButton.LeftButton: self.move(gp - self._drag_pos); return
+        edge = self._edge_at(event.pos())
+        CUR = {
+            "r": Qt.CursorShape.SizeHorCursor, "l": Qt.CursorShape.SizeHorCursor,
+            "b": Qt.CursorShape.SizeVerCursor,  "t": Qt.CursorShape.SizeVerCursor,
+            "br": Qt.CursorShape.SizeFDiagCursor, "tl": Qt.CursorShape.SizeFDiagCursor,
+            "bl": Qt.CursorShape.SizeBDiagCursor, "tr": Qt.CursorShape.SizeBDiagCursor,
+        }
+        self.setCursor(CUR.get(edge, Qt.CursorShape.ArrowCursor))
+
+    def mouseReleaseEvent(self, event):
+        self._drag_pos = None; self._resize_edge = None
+        self._resize_start_global = None; self._resize_start_geo = None
+        self._save_timer.start(); self._do_snap()
+        super().mouseReleaseEvent(event)
+
+    # ── FileBox 右键菜单（统一入口：所有子控件都转发到这里） ──
+    def _on_box_context_menu(self, global_pos):
+        """global_pos 是屏幕坐标。根据点到的位置决定弹哪个菜单：
+        - QListView item 上 → item 级菜单（打开/重命名/删除）
+        - 空白处 → FileBox 级菜单（刷新/新增/关闭）
+        """
+        # 先检测：点在哪个 QListView 上？
+        for lv, is_folder_mode_lv in (
+            (getattr(self, "_item_list", None), False),
+            (getattr(self, "_list_view", None), True),
+        ):
+            if lv is None: continue
+            local_lv = lv.mapFromGlobal(global_pos)
+            if not lv.rect().contains(local_lv): continue
+
+            # 在 QListView 上 → 判断是 item 还是空白
+            idx = lv.indexAt(local_lv)
+            if idx.isValid():
+                # ✅ item 上右键 → 弹 item 级菜单
+                if is_folder_mode_lv:
+                    self._show_folder_lv_item_menu(lv, idx, global_pos)
+                else:
+                    self._show_item_list_menu(idx, global_pos)
+                return
+            # QListView 空白处也弹 FileBox 菜单（让用户方便新增）
+            break  # 跳出循环，继续往下弹 FileBox 菜单
+
+        # ✅ 标题栏按钮 / 标题栏空白 / FileBox 背景 / QListView 空白
+        menu = QMenu(self); menu.setStyleSheet(_MENU_QSS)
+        if self._is_folder_mode:
+            menu.addAction(qta.icon("fa5s.sync", color="#4a9eff"), "刷新").triggered.connect(self._refresh_folder)
+            menu.addAction(qta.icon("fa5s.folder-open", color="#aaa"), "选择文件夹").triggered.connect(self._choose_folder)
+        else:
+            menu.addAction(qta.icon("fa5s.sync", color="#4a9eff"), "刷新").triggered.connect(self.refresh_items)
+            menu.addAction(qta.icon("fa5s.file", color="#aaa"), "新增文件...").triggered.connect(self._pick_files)
+            menu.addAction(qta.icon("fa5s.folder", color="#aaa"), "新增文件夹...").triggered.connect(self._pick_folders)
+            menu.addSeparator()
+            menu.addAction(qta.icon("fa5s.plus-square", color="#aaa"), "新建文件夹").triggered.connect(self._create_new_folder_in_box)
+        menu.addSeparator()
+        menu.addAction(qta.icon("fa5s.pen", color="#aaa"), "重命名文件框").triggered.connect(self._rename_box_title)
+        menu.addSeparator()
+        menu.addAction(qta.icon("fa5s.window-close", color="#888"), "关闭文件框（保存）").triggered.connect(self._close_box)
+        menu.addAction(qta.icon("fa5s.trash", color="#e55"), "删除文件框（不可恢复）").triggered.connect(self._delete_box)
+        menu.exec(global_pos)
+
+    def _show_item_list_menu(self, idx: QModelIndex, global_pos):
+        """拖入 / 分组模式：QListView 卡片级右键菜单。"""
+        path = idx.data(Qt.ItemDataRole.UserRole)
+        item_id = idx.data(Qt.ItemDataRole.UserRole + 1)
+        name = idx.data()
+        if not path: return
+        is_linked = self._is_group_linked
+        menu = QMenu(self); menu.setStyleSheet(_MENU_QSS)
+
+        def open_folder():
+            import ctypes
+            ctypes.windll.shell32.ShellExecuteW(None, "open", "explorer.exe", f'/select,"{path}"', None, 1)
+
+        def rename():
+            nonlocal idx, name
+            new_name, ok = dialog_style.get_text(self, "重命名", "新名称:", text=name)
+            if not ok or not new_name.strip(): return
+            new_name = new_name.strip()
+            if is_linked: database.update_item(item_id, name=new_name)
+            else: database.update_file_box_item(item_id, name=new_name)
+            self._item_model.itemFromIndex(idx).setText(new_name)
+            self._notify_panel_refresh()
+
+        def delete():
+            nonlocal idx
+            ret = dialog_style.question(self, "确认", f"删除「{name}」？", default_button=QMessageBox.StandardButton.No)
+            if ret != QMessageBox.StandardButton.Yes: return
+            if is_linked: database.delete_item(item_id)
+            else: database.delete_file_box_item(item_id)
+            self._item_model.removeRow(idx.row())
+            if self._item_model.rowCount() == 0:
+                self._empty_label.show(); self._item_list.hide()
+            self._notify_panel_refresh()
+
+        menu.addAction(qta.icon("fa5s.play", color="#4a9eff"), "打开").triggered.connect(lambda: self._open_item(idx))
+        menu.addAction(qta.icon("fa5s.folder-open", color="#aaa"), "打开文件夹位置").triggered.connect(open_folder)
+        menu.addAction(qta.icon("fa5s.pen", color="#aaa"), "重命名").triggered.connect(rename)
+        menu.addSeparator()
+        menu.addAction(qta.icon("fa5s.trash", color="#e55"), "删除").triggered.connect(delete)
+        menu.exec(global_pos)
+
+    def _show_folder_lv_item_menu(self, lv, idx: QModelIndex, global_pos):
+        """文件夹浏览模式：QListView 条目级右键菜单。"""
+        path = lv.model().filePath(idx)
+        if not path or not os.path.exists(path): return
+        menu = QMenu(self); menu.setStyleSheet(_MENU_QSS)
+        menu.addAction(qta.icon("fa5s.play", color="#4a9eff"), "打开").triggered.connect(lambda: os.startfile(path))
+        def open_folder():
+            import ctypes
+            ctypes.windll.shell32.ShellExecuteW(None, "open", "explorer.exe", f'/select,"{path}"', None, 1)
+        menu.addAction(qta.icon("fa5s.folder-open", color="#aaa"), "打开文件夹位置").triggered.connect(open_folder)
+        menu.exec(global_pos)
+
+    def _pick_files(self):
+        files, _ = QFileDialog.getOpenFileNames(self, "选择文件")
+        if not files: return
+        added = 0
+        for p in files:
+            store = shortcut_target.path_for_storage(p)
+            name = shortcut_target.item_name_from_sources(p, store)
+            database.add_file_box_item(self._box_id, name, store); added += 1
+        if added: self.refresh_items()
+
+    def _pick_folders(self):
+        folder = QFileDialog.getExistingDirectory(self, "选择文件夹")
+        if not folder: return
+        store = shortcut_target.path_for_storage(folder)
+        name = os.path.basename(folder) or folder
+        database.add_file_box_item(self._box_id, name, store)
+        self.refresh_items()
+
+    def _create_new_folder_in_box(self):
+        """在拖入模式下创建一个真实文件夹并添加到文件框。"""
+        name, ok = dialog_style.get_text(self, "新建文件夹", "文件夹名称:", text="新建文件夹")
+        if not ok or not name.strip(): return
+        # 先选父目录
+        parent = QFileDialog.getExistingDirectory(self, "选择创建位置")
+        if not parent: return
+        new_path = os.path.join(parent, name.strip())
+        try:
+            os.makedirs(new_path, exist_ok=False)
+        except Exception as e:
+            dialog_style.warning(self, "失败", str(e)); return
+        store = shortcut_target.path_for_storage(new_path)
+        database.add_file_box_item(self._box_id, name.strip(), store)
+        self.refresh_items()
+
+    def _do_resize(self, gp: QPoint):
+        if not self._resize_start_geo or not self._resize_start_global: return
+        d = gp - self._resize_start_global; g = self._resize_start_geo
+        x, y, w, h = g.x(), g.y(), g.width(), g.height(); e = self._resize_edge
+        min_w, min_h = self.MIN_W, 28 if self._collapsed else self.MIN_H
+        if "r" in e: w = max(min_w, w + d.x())
+        if "l" in e: nw = max(min_w, w - d.x()); x += w - nw; w = nw
+        if "b" in e: h = max(min_h, h + d.y())
+        if "t" in e: nh = max(min_h, h - d.y()); y += h - nh; h = nh
+        self.setGeometry(x, y, w, h)
+
+    # ── 磁吸 ──────────────────────────────────────────────
+    def _do_snap(self):
+        t = self._SNAP_THRESHOLD; gap = self._BOX_GAP
+        sx, sy, sw, sh = self.x(), self.y(), self.width(), self.height(); changed = False
+        screen = QApplication.screenAt(self.geometry().center())
+        if not screen: screen = QApplication.primaryScreen()
+        geom = screen.availableGeometry()
+        candidates = []
+        if abs(sy - geom.top()) <= t: candidates.append(("top", geom.top()))
+        if abs((sy + sh) - geom.bottom()) <= t: candidates.append(("bottom", geom.bottom() - sh))
+        if abs(sx - geom.left()) <= t: candidates.append(("left", geom.left()))
+        if abs((sx + sw) - geom.right()) <= t: candidates.append(("right", geom.right() - sw))
+        if candidates:
+            edge, pos = min(candidates, key=lambda c: (abs(c[1] - sy) if c[0] in ("top", "bottom") else abs(c[1] - sx)))
+            if edge in ("top", "bottom"): sy = pos
+            else: sx = pos
+            changed = True
+        for other in FileBox._instances:
+            if other is self: continue
+            ox, oy, ow, oh = other.x(), other.y(), other.width(), other.height()
+            x_c = [("ll", abs(sx - ox), ox), ("lr", abs(sx - (ox + ow)), ox + ow + gap),
+                   ("rl", abs((sx + sw) - ox), ox - sw - gap), ("rr", abs((sx + sw) - (ox + ow)), ox + ow - sw),
+                   ("cx", abs((sx + sw/2) - (ox + ow/2)), ox + ow/2 - sw/2)]
+            y_c = [("tt", abs(sy - oy), oy), ("tb", abs(sy - (oy + oh)), oy + oh + gap),
+                   ("bt", abs((sy + sh) - oy), oy - sh - gap), ("bb", abs((sy + sh) - (oy + oh)), oy + oh - sh),
+                   ("cy", abs((sy + sh/2) - (oy + oh/2)), oy + oh/2 - sh/2)]
+            x_best = min(x_c, key=lambda c: c[1])
+            if x_best[1] <= t:
+                sx = int(x_best[2]); changed = True
+                if x_best[0] not in ("lr", "rl"): sw = max(sw, ow)
+            y_best = min(y_c, key=lambda c: c[1])
+            if y_best[1] <= t:
+                sy = int(y_best[2]); changed = True
+                if y_best[0] not in ("tb", "bt"): sh = max(sh, oh)
+        sx = max(geom.left(), min(sx, geom.right() - sw))
+        sy = max(geom.top(), min(sy, geom.bottom() - sh))
+        if changed or sx != self.x() or sy != self.y() or sw != self.width() or sh != self.height():
+            self._snap_anim = QPropertyAnimation(self, b"geometry")
+            self._snap_anim.setDuration(150); self._snap_anim.setEasingCurve(QEasingCurve.Type.OutCubic)
+            self._snap_anim.setStartValue(self.geometry())
+            self._snap_anim.setEndValue(QRect(sx, sy, sw, sh))
+            self._snap_anim.start()
+
+    # ── 持久化 ────────────────────────────────────────────
+    def _save_all(self):
+        database.update_file_box(
+            self._box_id,
+            x=self.x(), y=self.y(), w=self.width(), h=self.height(),
+            collapsed=1 if self._collapsed else 0,
+            opacity=self._opacity,
+            folder_path=self._folder_path if self._is_folder_mode else "",
+            view_mode=self._view_mode if not self._is_folder_mode else "icon",
+            title=self._box_data.get("title", ""),
+        )
+
+    def closeEvent(self, event):
+        if self in FileBox._instances: FileBox._instances.remove(self)
+        self._save_all(); event.accept()
+
+    # ── 顶层窗口兜底拖放 ─────────────────────────────────
+    def dragEnterEvent(self, event):
+        if event.mimeData().hasUrls(): event.acceptProposedAction()
+        else: event.ignore()
+
+    def dragMoveEvent(self, event):
+        if event.mimeData().hasUrls(): event.acceptProposedAction()
+
+    def dropEvent(self, event):
+        self._handle_drop(event)
diff --git a/ui/dock.py b/ui/dock.py
index c96212b..364570c 100644
--- a/ui/dock.py
+++ b/ui/dock.py
@@ -432,6 +432,8 @@ class PanelWindow(QWidget):
     def showEvent(self, event):
         super().showEvent(event)
         self._apply_win32_blur(theme.name() == "dark")
+        # 亚克力方形底靠 DWM 圆角裁剪盖掉；窗口重建后属性丢失，每次 show 重应用
+        self._apply_win11_round_corners()
         if not self._screen_hooked:
             wh = self.windowHandle()
             if wh is not None:
@@ -571,6 +573,8 @@ class PanelWindow(QWidget):
         每项: (tooltip, qtawesome_icon, callback)
         排除重启/退出。"""
         return [
+            ("新建桌面文件框",        "fa5s.window-restore", self._create_file_box),
+            ("新建文件夹框",          "fa5s.folder-open",   self._create_folder_box),
             ("微信多开",              "fa5b.weixin",    self._open_wechat_multi),
             ("管理员运行 CMD",        "fa5s.terminal",  self._open_admin_cmd),
             ("管理员运行 PowerShell", "fa5b.windows",   self._open_admin_powershell),
@@ -840,7 +844,7 @@ class PanelWindow(QWidget):
             f"""
             QWidget#container {{
                 background: {t['panel_bg']};
-                border-radius: 12px;
+                border-radius: 8px;
                 border: 1px solid {t['panel_border']};
             }}
         """
@@ -964,7 +968,7 @@ class PanelWindow(QWidget):
             f"""
             QWidget#bottom_bar {{
                 background: {bar_bg2};
-                border-radius: 0 0 12px 12px;
+                border-radius: 0 0 8px 8px;
                 border-top: 1px solid {t['panel_border']};
             }}
             QPushButton {{ border:none; background:transparent; border-radius:4px; }}
@@ -993,6 +997,14 @@ class PanelWindow(QWidget):
             if item and item.widget():
                 item.widget()._apply_theme()
 
+        # ✅ 主题变化时通知所有 FileBox 重绘
+        try:
+            from ui.box import FileBox
+            for b in FileBox._instances:
+                b._apply_theme()  # 重设 QSS（container + title_bar 都会刷新）
+        except Exception:
+            pass
+
     def _apply_tooltip_theme(self, t: dict, is_dark: bool):
         """让所有控件 tooltip 跟随主题（含快捷栏按钮）。"""
         from PyQt6.QtGui import QPalette, QColor
@@ -1093,6 +1105,54 @@ class PanelWindow(QWidget):
         dlg = WechatMultiDialog(self)
         dlg.exec()
 
+    # ── FileBoxes ─────────────────────────────────────────
+    _file_boxes: list = []
+
+    def _create_file_box(self):
+        """新建一个空的拖入卡片文件框。"""
+        self._create_box_common(title="文件框", folder_path="")
+
+    def _create_folder_box(self):
+        """新建文件夹框 — 先让用户选文件夹。"""
+        from PyQt6.QtWidgets import QFileDialog
+        folder = QFileDialog.getExistingDirectory(self, "选择文件夹", os.path.expanduser("~"))
+        if not folder: return
+        title = os.path.basename(folder) or folder
+        self._create_box_common(title=title, folder_path=folder)
+
+    def _create_box_common(self, title: str, folder_path: str):
+        from ui.box import FileBox
+        # 注册 panel 引用 —— FileBox 在 mousePress 时会 raise_ 主面板
+        FileBox._panel_ref = self
+        screen = QApplication.primaryScreen().availableGeometry()
+        idx = len(self._file_boxes)
+        x = screen.center().x() - 120 + idx * 20
+        y = screen.center().y() - 160 + idx * 20
+        new_id = database.add_file_box(title, x=x, y=y, w=240, h=320)
+        database.update_file_box(new_id, folder_path=folder_path)  # 文件夹框模式
+        box = FileBox({
+            "id": new_id, "title": title, "x": x, "y": y,
+            "w": 240, "h": 320, "folder_path": folder_path,
+        })
+        self._file_boxes.append(box)
+        box.show(); box.raise_(); box.activateWindow()
+        # 主面板始终在 FileBox 之上
+        self.raise_()
+
+    def _load_file_boxes(self):
+        """启动时从 DB 恢复所有文件框。"""
+        from ui.box import FileBox
+        FileBox._panel_ref = self
+        for d in database.get_file_boxes():
+            box = FileBox(d)
+            self._file_boxes.append(box)
+            box.show()
+
+    def _close_all_file_boxes(self):
+        for b in list(self._file_boxes):
+            b.close()
+        self._file_boxes.clear()
+
     def _toggle_theme(self):
         theme.set_theme("light" if theme.name() == "dark" else "dark")
         self._apply_theme()
@@ -1210,6 +1270,18 @@ class PanelWindow(QWidget):
         self._open_url_in_browser("https://www.doubao.com/chat/", "豆包")
 
     def refresh_groups(self):
+        # 同步刷新所有分组联动的 FileBox（双向联动）
+        try:
+            from ui.box import FileBox
+            for b in FileBox._instances:
+                if b._is_group_linked:
+                    b.refresh_items()
+                    # 如果分组被删了 → 自动解除关联
+                    if not database.get_items(b._group_id):
+                        pass  # 分组可能空了，正常
+        except Exception:
+            pass
+
         # 记录当前折叠状态
         collapsed_ids = set()
         for i in range(self.groups_layout.count() - 1):
@@ -1308,6 +1380,8 @@ class PanelWindow(QWidget):
                 self.setGeometry(geo)
                 self.show()
                 self._apply_win32_blur(theme.name() == "dark")
+                # setWindowFlags 重建了原生窗口，DWM 圆角属性丢失，重新应用
+                self._apply_win11_round_corners()
         ball = getattr(self, "_ball_ref", None)
         if ball is not None:
             ball.set_stays_on_top(on_top)
@@ -1653,7 +1727,8 @@ class PanelWindow(QWidget):
                 if event.buttons() & Qt.MouseButton.LeftButton and self._win_drag_pos:
                     self._dock_state = "none"
                     self._is_collapsed = False
-                    self.move(gp - self._win_drag_pos)
+                    raw_pos = gp - self._win_drag_pos
+                    self.move(self._magnetic_snap(raw_pos))
                     return True
                 # 悬停时更新光标
                 self._update_cursor(gp)
@@ -1676,7 +1751,8 @@ class PanelWindow(QWidget):
         if event.buttons() & Qt.MouseButton.LeftButton and self._win_drag_pos:
             self._dock_state = "none"
             self._is_collapsed = False
-            self.move(event.globalPosition().toPoint() - self._win_drag_pos)
+            raw_pos = event.globalPosition().toPoint() - self._win_drag_pos
+            self.move(self._magnetic_snap(raw_pos))
             return
         self._update_cursor(event.globalPosition().toPoint())
 
@@ -1764,6 +1840,39 @@ class PanelWindow(QWidget):
                 self.show_near(self._ball_ref.pos(), self._ball_ref.width())
 
     # ── 边缘吸附与收起 ─────────────────────────────────────
+    _SNAP_THRESHOLD = 30  # 拖拽中磁吸触发阈值（像素）
+
+    def _magnetic_snap(self, pos: QPoint) -> QPoint:
+        """拖拽中实时磁吸：窗口接近边缘时自动吸附到边缘，给用户"磁性"手感。"""
+        screen = QApplication.screenAt(pos)
+        if not screen:
+            screen = QApplication.primaryScreen()
+        geom = screen.availableGeometry()
+        x, y, w, h = pos.x(), pos.y(), self.width(), self.height()
+        t = self._SNAP_THRESHOLD
+
+        # 优先吸附距离最近的边缘
+        top_dist    = abs(y - geom.top())
+        bottom_dist = abs((y + h) - geom.bottom())
+        left_dist   = abs(x - geom.left())
+        right_dist  = abs((x + w) - geom.right())
+        min_dist = min(top_dist, bottom_dist, left_dist, right_dist)
+
+        if min_dist <= t:
+            if min_dist == top_dist:
+                y = geom.top()
+            elif min_dist == bottom_dist:
+                y = geom.bottom() - h
+            elif min_dist == left_dist:
+                x = geom.left()
+            else:
+                x = geom.right() - w
+
+        # 限制在屏幕范围内
+        x = max(geom.left(), min(x, geom.right() - w))
+        y = max(geom.top(), min(y, geom.bottom() - h))
+        return QPoint(x, y)
+
     def _check_dock_state(self):
         if self._pinned:
             self._dock_state = "none"
@@ -1772,10 +1881,11 @@ class PanelWindow(QWidget):
         screen = QApplication.screenAt(self.geometry().center())
         if not screen:
             screen = QApplication.primaryScreen()
-        screen_geom = screen.geometry()
+        # 用 availableGeometry 排除任务栏区域，避免吸附到任务栏上
+        screen_geom = screen.availableGeometry()
 
         x, y, w, h = self.x(), self.y(), self.width(), self.height()
-        threshold = 20
+        threshold = 30  # 吸附阈值（像素）
 
         # 检测顶部吸附
         if abs(y - screen_geom.top()) <= threshold:
@@ -1803,7 +1913,7 @@ class PanelWindow(QWidget):
         if not is_hovered:
             screen = QApplication.screenAt(cursor_pos)
             if screen:
-                screen_geom = screen.geometry()
+                screen_geom = screen.availableGeometry()
                 tolerance = 3
                 if self._dock_state == "top" and cursor_pos.y() <= screen_geom.top() + tolerance:
                     if geom.left() <= cursor_pos.x() <= geom.right():
@@ -1831,7 +1941,7 @@ class PanelWindow(QWidget):
         screen = QApplication.screenAt(self.geometry().center())
         if not screen:
             screen = QApplication.primaryScreen()
-        screen_geom = screen.geometry()
+        screen_geom = screen.availableGeometry()
 
         x, y, w, h = self.x(), self.y(), self.width(), self.height()
         target_x, target_y = x, y
@@ -1854,7 +1964,7 @@ class PanelWindow(QWidget):
         screen = QApplication.screenAt(self.geometry().center())
         if not screen:
             screen = QApplication.primaryScreen()
-        screen_geom = screen.geometry()
+        screen_geom = screen.availableGeometry()
 
         x, y, w, h = self.x(), self.y(), self.width(), self.height()
         target_x, target_y = x, y
@@ -1881,6 +1991,26 @@ class PanelWindow(QWidget):
             self._dock_anim.finished.connect(self.raise_)
         self._dock_anim.start()
 
+    def _apply_win11_round_corners(self):
+        """Windows 11: DWMWA_WINDOW_CORNER_PREFERENCE(33) = DWMWCP_ROUND(2)。
+
+        必须调用：亚克力合成层(SetWindowCompositionAttribute)作用于**整个方形窗口**，
+        QSS border-radius 只能裁 Qt 内容层，裁不掉 OS 层的方形亚克力 →
+        四角圆弧外露出方形底座（"圆角下面垫着直角"的根因）。
+        DWMWCP_ROUND 让 DWM 在 OS 层物理裁剪窗口四角，亚克力方形一起被裁掉。
+        setWindowFlags 重建窗口后 DWM 属性会丢，需在 showEvent / 置顶切换后重应用。"""
+        if sys.platform != "win32":
+            return
+        try:
+            import ctypes
+            hwnd = int(self.winId())
+            pref = ctypes.c_int(2)    # DWMWCP_ROUND
+            ctypes.windll.dwmapi.DwmSetWindowAttribute(
+                hwnd, 33, ctypes.byref(pref), ctypes.sizeof(pref)
+            )
+        except Exception:
+            pass
+
     def _apply_win32_blur(self, is_dark: bool):
         if sys.platform != "win32":
             return
diff --git a/ui/flow_layout.py b/ui/flow_layout.py
index bdbb9d8..7469905 100644
--- a/ui/flow_layout.py
+++ b/ui/flow_layout.py
@@ -25,6 +25,7 @@ class FlowContainer(QWidget):
 
     def add_widget(self, w: QWidget):
         w.setParent(self)
+        w.show()  # ⚠️ 关键：必须显式 show，否则从 clear_widgets 里 hide() 后不会自动显示
         self._widgets.append(w)
         if self.width() > 0:
             self._relayout()
diff --git a/ui/group.py b/ui/group.py
index 4681f8b..cea332a 100644
--- a/ui/group.py
+++ b/ui/group.py
@@ -486,6 +486,13 @@ class GroupWidget(QWidget):
             self._add_btn.click() if e.button() == Qt.MouseButton.LeftButton else None
         )
 
+        # 🖥️ 变成桌面文件框按钮（放在加号左边）
+        self._dock_btn = QPushButton()
+        self._dock_btn.setFixedSize(22, 22)
+        self._dock_btn.setToolTip("变成桌面文件框")
+        self._dock_btn.setStyleSheet("border:none; background:transparent;")
+        self._dock_btn.clicked.connect(self._toggle_dock_box)
+
         self._more_btn = QPushButton()
         self._more_btn.setFixedSize(22, 22)
         self._more_btn.setStyleSheet("border:none; background:transparent;")
@@ -496,6 +503,7 @@ class GroupWidget(QWidget):
         h_layout.addWidget(self.title_label)
         h_layout.addStretch()
         h_layout.addWidget(self.path_label)
+        h_layout.addWidget(self._dock_btn)
         h_layout.addWidget(self._add_btn)
         h_layout.addWidget(self._more_btn)
 
@@ -511,10 +519,65 @@ class GroupWidget(QWidget):
         n = item_count_for_group(self.group_data["id"])
         self.title_label.setText(f"{self.group_data['name']} ({n})")
 
+    def _has_docked_box(self) -> bool:
+        """检查本分组是否已有关联的桌面文件框。"""
+        conn = database.get_conn()
+        row = conn.execute("SELECT id FROM file_boxes WHERE group_id=?",
+                           (self.group_data["id"],)).fetchone()
+        conn.close()
+        return row is not None
+
+    def _toggle_dock_box(self):
+        """点击 🖥️ 按钮：创建或恢复/聚焦已关联的桌面文件框。"""
+        from db import database as db_mod
+        from ui.box import FileBox
+
+        gid = self.group_data["id"]
+        box_id = db_mod.create_file_box_from_group(gid)
+        if box_id is None:
+            # 已存在 → 找出来 show + raise
+            conn = db_mod.get_conn()
+            row = conn.execute("SELECT id FROM file_boxes WHERE group_id=?", (gid,)).fetchone()
+            conn.close()
+            if row:
+                box_id = row["id"]
+
+        # 拿到 PanelWindow 引用
+        main = self.window() if hasattr(self, "window") else None
+        from ui.dock import PanelWindow
+        if isinstance(main, PanelWindow):
+            main._load_file_boxes()
+        else:
+            # 直接构造一个 FileBox 并 show
+            conn = db_mod.get_conn()
+            box_row = conn.execute("SELECT * FROM file_boxes WHERE id=?", (box_id,)).fetchone()
+            conn.close()
+            if box_row:
+                box_data = dict(box_row)
+                # 如果 FileBox._panel_ref 还没设，尝试找一个
+                if FileBox._panel_ref is None:
+                    # 扫描 QApplication topLevelWidgets 找 PanelWindow
+                    from PyQt6.QtWidgets import QApplication
+                    for w in QApplication.topLevelWidgets():
+                        if isinstance(w, PanelWindow):
+                            FileBox._panel_ref = w; break
+                box = FileBox(box_data)
+                box.show()
+
+        self._apply_theme()  # 刷新按钮状态色
+
     def _apply_theme(self):
         t = theme.current()
         ic = "#cccccc" if theme.name() == "dark" else "#555555"
 
+        # 已关联文件框 → 用蓝色高亮按钮
+        if self._has_docked_box():
+            dock_color = "#4a9eff"
+            self._dock_btn.setToolTip("已在桌面文件框（点击聚焦）")
+        else:
+            dock_color = ic
+            self._dock_btn.setToolTip("变成桌面文件框")
+
         self.header.setStyleSheet(f"""
             QWidget {{ background:{t['header_bg']}; border-radius:5px; }}
             QWidget:hover {{ background:{t['header_hover']}; }}
@@ -526,6 +589,8 @@ class GroupWidget(QWidget):
         arrow = "fa5s.chevron-down" if not self.collapsed else "fa5s.chevron-right"
         self.toggle_icon.setPixmap(qta.icon(arrow, color=ic).pixmap(14, 14))
 
+        self._dock_btn.setIcon(qta.icon("fa5s.desktop", color=dock_color))
+        self._dock_btn.setIconSize(QSize(11, 11))
         self._add_btn.setIcon(qta.icon("fa5s.plus", color=ic))
         self._add_btn.setIconSize(QSize(11, 11))
         self._more_btn.setIcon(qta.icon("fa5s.ellipsis-h", color=ic))
@@ -573,6 +638,7 @@ class GroupWidget(QWidget):
             QMenu::item:selected {{ background:{t['menu_selected']}; }}
         """)
         rename_act = menu.addAction("重命名")
+        dock_act = menu.addAction("🖥️ 变成桌面文件框")
         del_act = menu.addAction("删除分组")
         action = menu.exec(QCursor.pos())
         if action == rename_act:
@@ -583,6 +649,28 @@ class GroupWidget(QWidget):
                 database.rename_group(self.group_data["id"], name.strip())
                 self.group_data["name"] = name.strip()
                 self._update_title_count()
+        elif action == dock_act:
+            from db import database as db_mod
+            from ui.dock import PanelWindow  # 延迟 import
+            box_id = db_mod.create_file_box_from_group(self.group_data["id"])
+            if box_id is None:
+                dialog_style.information(self, "提示", "该分组已关联桌面文件框")
+            else:
+                # 通知主面板立即加载这个新 FileBox
+                main_window = self.window()
+                if isinstance(main_window, PanelWindow):
+                    main_window._load_file_boxes()
+                    # 找到刚创建的 FileBox 并 show
+                    from ui.box import FileBox
+                    for b in FileBox._instances:
+                        if b._group_id == self.group_data["id"] and not b.isVisible():
+                            b.show()
+                            break
+                dialog_style.information(
+                    self, "成功",
+                    f"分组「{self.group_data['name']}」已变成桌面文件框 ✅\n"
+                    f"两者数据实时联动"
+                )
         elif action == del_act:
             ret = dialog_style.question(
                 self,
diff --git a/ui/item.py b/ui/item.py
index 3c47f51..54184c7 100644
--- a/ui/item.py
+++ b/ui/item.py
@@ -265,6 +265,7 @@ class ItemWidget(QWidget):
         menu.setStyleSheet(menu_style)
 
         open_act = menu.addAction(qta.icon("fa5s.play", color="#4a9eff"), "打开")
+        open_folder_act = menu.addAction(qta.icon("fa5s.folder-open", color="#aaa"), "打开文件夹位置")
         menu.addSeparator()
 
         item_id = self.item_data.get("id")
@@ -291,6 +292,8 @@ class ItemWidget(QWidget):
 
         if action == open_act:
             self._launch()
+        elif action == open_folder_act:
+            self._open_folder()
         elif action == rename_act:
             self._rename()
         elif repath_act and action == repath_act:
@@ -423,13 +426,40 @@ class ItemWidget(QWidget):
         except OSError:
             try:
                 import subprocess
+                creationflags = getattr(subprocess, "CREATE_NO_WINDOW", 0)
                 if sys.platform == "win32":
-                    # shell=True 无法直接“运行” .lnk，需交给 start 做关联打开
-                    subprocess.Popen(
-                        ["cmd", "/c", "start", "", path],
-                        creationflags=getattr(subprocess, "CREATE_NO_WINDOW", 0),
-                    )
+                    # 尝试直接启动（适用于 .exe / .bat / .cmd）
+                    ext = os.path.splitext(path)[1].lower()
+                    if ext in (".exe", ".bat", ".cmd"):
+                        subprocess.Popen([path], creationflags=creationflags)
+                    else:
+                        # .lnk / .url 等走 start 关联打开
+                        subprocess.Popen(
+                            ["cmd", "/c", "start", "", path],
+                            creationflags=creationflags,
+                        )
                 else:
                     subprocess.Popen(["xdg-open", path])
             except Exception as e:
                 print(f"启动失败: {path!r} -> {e}")
+
+    def _open_folder(self):
+        """在系统资源管理器中打开文件所在文件夹并选中该文件。"""
+        path = (self.item_data.get("path") or "").strip()
+        if not path:
+            return
+        path = os.path.normpath(path)
+        try:
+            if sys.platform == "win32":
+                # explorer /select,"路径" —— /select,"..." 必须作为一个整体参数
+                import ctypes
+                ctypes.windll.shell32.ShellExecuteW(
+                    None, "open", "explorer.exe",
+                    '/select,"{}"'.format(path),
+                    None, 1,  # SW_SHOWNORMAL
+                )
+            else:
+                folder = os.path.dirname(path)
+                subprocess.Popen(["xdg-open", folder])
+        except Exception as e:
+            print(f"打开文件夹失败: {path!r} -> {e}")
diff --git a/ui/updater.py b/ui/updater.py
index d3c11c3..a122bc0 100644
--- a/ui/updater.py
+++ b/ui/updater.py
@@ -1,16 +1,20 @@
 # -*- coding: utf-8 -*-
 """
-软件自动更新模块
-- 检查版本：GET https://api.yunzer.cn/api/softwareupgrade/check?code=niumasortware
-- 下载新版 exe，替换当前程序后重启
+软件自动更新模块 —— 主程序负责"下载 + 启动外部更新器 + 退出"，
+真正的替换/重启由 update_helper.py 完成（独立进程，不随主程序死）。
+
+更新包格式（自动识别）：
+  .exe  → onefile 直接替换启动器，清理遗留 _internal/ 死目录
+  .zip  → 解压整包，备份旧目录 → 原子替换 → 清理
+
+检查接口: GET https://api.yunzer.cn/api/softwareupgrade/check?code=niumasortware
 """
 import os
 import sys
 import subprocess
 import tempfile
 import json
-import ctypes
-import base64
+import argparse  # noqa: F401  # update_helper 用 PyQt6 环境也行
 from PyQt6.QtCore import QThread, pyqtSignal, QObject
 from PyQt6.QtWidgets import QProgressDialog, QMessageBox, QApplication
 import urllib.request
@@ -77,57 +81,152 @@ class _DownloadWorker(QThread):
             self.error.emit(str(e))
 
 
-def _replace_and_restart(new_exe: str):
-    if not getattr(sys, "frozen", False):
-        subprocess.Popen([new_exe])
+# ────────── 启动外部更新器 ─────────────────────────────────
+def _launch_update_helper(downloaded_path: str) -> None:
+    """下载完成 → 启动 update_helper 独立进程 → 主程序退出。
+    update_helper 负责：等待主进程退出 → 替换文件/目录 → 启动新版本 → 清理。"""
+    is_frozen = getattr(sys, "frozen", False)
+
+    if not is_frozen:
+        # 开发态：无法自更新（运行时不能替换自己），只提示用户下载
+        dialog_style.information(
+            None, "开发模式",
+            "开发环境无法自动更新。\n请手动下载新版本，解压后替换原目录。",
+        )
         QApplication.quit()
         return
 
-    current_exe = sys.executable
+    # ─── onefile vs onedir 路径差异 ────────────────────────
+    # onefile 模式：sys.executable = _MEIPASS 里的临时副本，需要用 GetModuleFileNameW 找原始 exe
+    # onedir 模式：sys.executable 就是真实路径，直接用
+    if hasattr(sys, "_MEIPASS"):
+        # onefile：原始 exe 路径
+        import ctypes
+        from ctypes import wintypes
+        buf = ctypes.create_unicode_buffer(wintypes.MAX_PATH)
+        ctypes.windll.kernel32.GetModuleFileNameW(None, buf, wintypes.MAX_PATH)
+        dst_exe = buf.value
+    else:
+        dst_exe = sys.executable
+
+    # ─── 包类型匹配检查 ───────────────────────────────────
+    # 防止 onefile(100MB) ↔ onedir 启动器(几MB) 混更导致更新后跑不起来
+    try:
+        cur_size = os.path.getsize(dst_exe)
+        new_size = os.path.getsize(downloaded_path)
+        size_diff_abs = abs(cur_size - new_size)
+        # onefile 通常 > 50MB，onedir 启动器通常 < 10MB，差 > 30MB 就报警
+        if size_diff_abs > 30 * 1024 * 1024:
+            ret = dialog_style.warning(
+                None, "更新包格式异常",
+                f"下载的更新包大小（{new_size / 1024 / 1024:.1f} MB）"
+                f"与当前程序（{cur_size / 1024 / 1024:.1f} MB）差异较大，"
+                f"可能是包格式不匹配（如 onefile vs onedir 混更）。\n\n"
+                f"继续更新可能导致程序无法启动。是否仍要继续？",
+            )
+            if ret != QMessageBox.StandardButton.Yes:
+                try:
+                    os.remove(downloaded_path)
+                except Exception:
+                    pass
+                return
+    except Exception:
+        pass
+
+    # ─── 找 update_helper.exe ─────────────────────────────
+    # onedir: 与主 exe 同级
+    # onefile: 打包进 onefile exe 解压到 _MEIPASS，需复制到系统 temp 防止清理
+    app_dir = os.path.dirname(os.path.abspath(dst_exe))
+    helper_exe = os.path.join(app_dir, "update_helper.exe")
+    helper_py  = os.path.join(app_dir, "_internal", "update_helper.py")
+
+    # onefile 解压目录里的 helper
+    meipass_helper = None
+    if hasattr(sys, "_MEIPASS"):
+        meipass_helper = os.path.join(sys._MEIPASS, "update_helper.exe")
+        if not os.path.exists(helper_exe) and os.path.exists(meipass_helper):
+            # 从 _MEIPASS 复制到系统 temp（_MEIPASS 在主进程退出后可能被清理）
+            import tempfile
+            tmp_helper = os.path.join(tempfile.gettempdir(), "niumasoft_update_helper.exe")
+            try:
+                import shutil
+                shutil.copy2(meipass_helper, tmp_helper)
+                helper_exe = tmp_helper
+                print(f"[updater] copied helper from _MEIPASS to {tmp_helper}")
+            except Exception as e:
+                print(f"[updater] copy helper failed: {e}")
+                helper_exe = meipass_helper  # 退而求其次，直接用 _MEIPASS 里的
+
+    # 如果 exe 不存在，尝试用 python 跑 py 脚本（开发态兜底）
+    if not os.path.exists(helper_exe) and not os.path.exists(helper_py):
+        # 最后兜底：找项目根目录的 update_helper.py
+        fallback = os.path.join(os.path.dirname(os.path.dirname(os.path.abspath(__file__))),
+                                "update_helper.py")
+        if os.path.exists(fallback):
+            helper_py = fallback
+
     pid = os.getpid()
 
-    ps_script = f"""
-$pid_target = {pid}
-$src = '{new_exe.replace(chr(92), chr(92)*2)}'
-$dst = '{current_exe.replace(chr(92), chr(92)*2)}'
+    if os.path.exists(helper_exe):
+        cmd = [
+            helper_exe,
+            "--src", downloaded_path,
+            "--dst", dst_exe,
+            "--pid", str(pid),
+            "--restart",
+            "--mode", "auto",
+        ]
+    elif os.path.exists(helper_py):
+        cmd = [
+            sys.executable if os.path.exists(sys.executable) and sys.executable.lower().endswith("python.exe")
+                else "python",
+            helper_py,
+            "--src", downloaded_path,
+            "--dst", dst_exe,
+            "--pid", str(pid),
+            "--restart",
+            "--mode", "auto",
+        ]
+    else:
+        # 什么都找不到，放弃
+        dialog_style.warning(None, "更新失败", "找不到 update_helper 更新器组件。")
+        return
 
-$waited = 0
-while ((Get-Process -Id $pid_target -ErrorAction SilentlyContinue) -and $waited -lt 30) {{
-    Start-Sleep -Milliseconds 500
-    $waited += 0.5
-}}
+    _log_update_request(downloaded_path, dst_exe, pid)
 
-$ok = $false
-for ($i = 0; $i -lt 10; $i++) {{
-    try {{
-        Copy-Item -Path $src -Destination $dst -Force
-        $ok = $true
-        break
-    }} catch {{
-        Start-Sleep -Milliseconds 800
-    }}
-}}
+    try:
+        # CREATE_NEW_CONSOLE：子进程创建独立控制台（不受父进程生命周期影响）
+        # CREATE_NO_WINDOW：  控制台窗口不显示（静默运行）
+        # 不用 DETACHED_PROCESS——它在 Python GUI 程序里不可靠，父进程退出时子进程可能被系统回收
+        subprocess.Popen(
+            cmd,
+            creationflags=subprocess.CREATE_NEW_CONSOLE | subprocess.CREATE_NO_WINDOW,
+        )
+    except Exception as e:
+        dialog_style.warning(None, "更新失败", f"无法启动更新器：\n{e}")
+        return
 
-if ($ok) {{
-    Remove-Item $src -Force -ErrorAction SilentlyContinue
-    Start-Process $dst
-}}
-"""
-    tmp = tempfile.NamedTemporaryFile(
-        delete=False, suffix=".ps1", mode="w", encoding="utf-8"
-    )
-    tmp.write(ps_script)
-    tmp.close()
-
-    subprocess.Popen(
-        ["powershell", "-WindowStyle", "Hidden",
-         "-NonInteractive", "-ExecutionPolicy", "Bypass",
-         "-File", tmp.name],
-        creationflags=subprocess.DETACHED_PROCESS | subprocess.CREATE_NO_WINDOW,
-    )
+    # 给 update_helper 一点时间就位（OpenProcess 还没拿到句柄就退了主进程，
+    # WaitForSingleObject 会立刻返回 0，这其实正好是我们想要的，但留 1 秒保险）
+    import time as _t
+    _t.sleep(0.5)
     QApplication.quit()
 
 
+def _log_update_request(src: str, dst: str, pid: int) -> None:
+    """在 update_helper 同目录写一份请求 JSON，方便计划任务/管理员提权模式读取。"""
+    try:
+        app_dir = os.path.dirname(os.path.abspath(sys.executable))
+        req = {
+            "src": src, "dst": dst, "pid": pid,
+            "restart": True, "ts": __import__("time").time(),
+        }
+        with open(os.path.join(app_dir, "update_request.json"), "w", encoding="utf-8") as f:
+            json.dump(req, f, ensure_ascii=False, indent=2)
+    except Exception:
+        pass
+
+
 class Updater(QObject):
     def __init__(self, parent=None):
         super().__init__(parent)
@@ -143,7 +242,7 @@ class Updater(QObject):
     def _on_check_result(self, data: dict):
         current = _current_version()
         latest  = data.get("latestVersion", "")
-        url     = data.get("downloadUrl", "")
+        url     = data.get("downloadUrls", {}).get("windows") or data.get("downloadUrl", "")
 
         if not _is_newer(latest, current):
             if not self._silent:
@@ -167,11 +266,14 @@ class Updater(QObject):
             dialog_style.warning(self._parent_widget, "检查更新失败", f"无法连接更新服务器：\n{err}")
 
     def _download(self, url: str):
-        if getattr(sys, "frozen", False):
-            dest_dir = os.path.dirname(sys.executable)
-        else:
-            dest_dir = tempfile.gettempdir()
-        dest = os.path.join(dest_dir, "_update_new.exe")
+        # 统一下载到系统 temp 目录（不污染安装目录、避免文件锁冲突）
+        tmp = tempfile.gettempdir()
+        # 根据 URL 后缀决定文件名
+        name = os.path.basename(url.split("?")[0]) or "_niumasoft_update"
+        if not os.path.splitext(name)[1]:
+            # 不知道是什么，先存成 zip（update_helper 会自动识别）
+            name += ".zip"
+        dest = os.path.join(tmp, name)
 
         self._progress = QProgressDialog("正在下载更新...", "取消", 0, 100, self._parent_widget)
         self._progress.setWindowTitle("下载更新")
@@ -187,7 +289,7 @@ class Updater(QObject):
 
     def _on_download_done(self, path: str):
         self._progress.close()
-        _replace_and_restart(path)
+        _launch_update_helper(path)
 
     def _on_download_error(self, err: str):
         self._progress.close()
diff --git a/ui/wechat_multi.py b/ui/wechat_multi.py
index 8c462ce..b12f290 100644
--- a/ui/wechat_multi.py
+++ b/ui/wechat_multi.py
@@ -3,7 +3,6 @@
 """
 import os
 import subprocess
-import tempfile
 
 from PyQt6.QtWidgets import (
     QDialog, QVBoxLayout, QHBoxLayout, QLabel, QLineEdit,
@@ -203,22 +202,12 @@ class WechatMultiDialog(QDialog):
         database.set_setting(_DB_KEY_PATH, exe)
         database.set_setting(_DB_KEY_COUNT, str(count))
 
-        # 写临时 bat，连续 start 多次
-        lines = ["@echo off"]
+        # 直接多次启动，避免 bat 文件中文路径编码问题
         for _ in range(count):
-            lines.append(f'start "" "{exe}"')
-        bat_content = "\r\n".join(lines) + "\r\n"
-
-        tmp = tempfile.NamedTemporaryFile(
-            delete=False, suffix=".bat", mode="w", encoding="gbk"
-        )
-        tmp.write(bat_content)
-        tmp.close()
-
-        subprocess.Popen(
-            ["cmd", "/c", tmp.name],
-            creationflags=subprocess.CREATE_NO_WINDOW
-        )
+            subprocess.Popen(
+                [exe],
+                creationflags=getattr(subprocess, "CREATE_NO_WINDOW", 0),
+            )
         self.accept()
 
     # 无边框拖动
diff --git a/update_helper.py b/update_helper.py
index 2d34d21..d85f391 100644
--- a/update_helper.py
+++ b/update_helper.py
@@ -1,141 +1,381 @@
+# -*- coding: utf-8 -*-
 """
-以“计划任务(最高权限)”方式执行静默覆盖更新。
+外部独立更新器 —— 主进程退出后完成真正的替换/重启。
 
-工作流：
-- 主程序（普通权限）下载新 exe 到可写目录（建议 ProgramData）并写入 update_request.json
-- 计划任务以 SYSTEM/管理员身份运行本程序
-- 本程序读取请求文件 -> 等待主程序退出 -> 覆盖安装目录 exe -> 重启 -> 清理请求文件
+不随主进程死、不被主进程文件锁影响、失败可回滚。
+
+用法（主程序 Popen 启动）:
+    update_helper.exe --src <下载包路径> --dst <目标exe路径> --pid <当前PID> [--restart] [--mode auto|onefile|zip] [--keepbackup]
+
+不依赖计划任务，普通用户权限即可覆盖自己的安装目录。
+如果用户装在 C:\\Program Files 等受限目录，需配合计划任务提权（保留 update_helper.spec 打包为 exe 的能力）。
 """
-
 from __future__ import annotations
 
+import argparse
+import ctypes
+import ctypes.wintypes as wt
 import json
 import os
+import shutil
 import subprocess
 import sys
+import tempfile
 import time
+import traceback
+import zipfile
 
 
-APP_NAME = "CleanDesktopOrganizer"
-REQUEST_FILE = "update_request.json"
 LOG_FILE = "update.log"
 
 
-def _programdata_dir() -> str:
-    base = os.environ.get("PROGRAMDATA") or r"C:\ProgramData"
-    return os.path.join(base, APP_NAME)
-
-
-def _request_path() -> str:
-    return os.path.join(_programdata_dir(), REQUEST_FILE)
-
-
-def _log(msg: str):
+# ────────── 日志 ────────────────────────────────────────────
+def _log(msg: str) -> None:
     try:
-        os.makedirs(_programdata_dir(), exist_ok=True)
-        p = os.path.join(_programdata_dir(), LOG_FILE)
+        p = os.path.join(tempfile.gettempdir(), LOG_FILE)
         with open(p, "a", encoding="utf-8") as f:
-            f.write(msg.rstrip() + "\n")
+            f.write(f"[{time.strftime('%Y-%m-%d %H:%M:%S')}] {msg}\n")
     except Exception:
         pass
 
 
-def _read_request() -> dict:
-    p = _request_path()
-    with open(p, "r", encoding="utf-8") as f:
-        return json.load(f)
-
-
-def _pid_exists(pid: int) -> bool:
+# ────────── 等待进程退出（Win32 精准版） ───────────────────
+def _wait_process_exit(pid: int, timeout_sec: float = 90.0) -> bool:
+    """用 OpenProcess + WaitForSingleObject 等进程退出。
+    比 tasklist 轮询精准：能检测 zombie（已退出但句柄未释放）、
+    能被进程句柄自动释放（不依赖命令行解析）。"""
     if pid <= 0:
-        return False
+        _log("wait: no pid, skip")
+        return True
+    user32 = ctypes.windll.user32
+    kernel32 = ctypes.windll.kernel32
+    SYNCHRONIZE = 0x00100000
+    PROCESS_QUERY_LIMITED_INFORMATION = 0x1000
+    handle = kernel32.OpenProcess(SYNCHRONIZE | PROCESS_QUERY_LIMITED_INFORMATION, False, pid)
+    if not handle:
+        # OpenProcess 失败通常意味着进程已不存在（访问拒绝）
+        _log(f"wait: OpenProcess pid={pid} failed, assume gone")
+        return True
     try:
-        # tasklist 不需要管理员权限，SYSTEM 下也可用
-        out = subprocess.run(
-            ["tasklist", "/FI", f"PID eq {pid}"],
-            capture_output=True,
-            text=True,
-            encoding="utf-8",
-            errors="replace",
-            creationflags=subprocess.CREATE_NO_WINDOW,
-        ).stdout
-        return str(pid) in out
-    except Exception:
-        return False
+        waited = 0.0
+        step = 0.5
+        while True:
+            rc = kernel32.WaitForSingleObject(handle, int(step * 1000))
+            waited += step
+            if rc == 0:
+                _log(f"wait: pid={pid} exited after {waited:.1f}s")
+                return True
+            if waited >= timeout_sec:
+                _log(f"wait: pid={pid} TIMEOUT after {timeout_sec}s")
+                return False
+    finally:
+        kernel32.CloseHandle(handle)
 
 
-def _copy_with_retries(src: str, dst: str, retries: int = 10) -> bool:
-    for _ in range(max(1, retries)):
+# ────────── 文件操作（带重试 + 原子替换） ────────────────────
+def _atomic_replace(src: str, dst: str, backup: str | None = None, retries: int = 12) -> bool:
+    """原子替换：备份旧文件 → os.replace 覆盖 → 失败则恢复备份。"""
+    # 1. 备份旧文件
+    old_exists = os.path.exists(dst)
+    if old_exists and backup:
         try:
-            os.makedirs(os.path.dirname(dst), exist_ok=True)
-            if os.path.exists(dst):
-                try:
-                    os.chmod(dst, 0o666)
-                except Exception:
-                    pass
-            # 用二进制流复制，避免权限/锁问题时直接抛错
-            with open(src, "rb") as rf:
-                data = rf.read()
-            with open(dst, "wb") as wf:
-                wf.write(data)
+            os.replace(dst, backup)
+            _log(f"backup: {dst} -> {backup}")
+        except Exception as e:
+            _log(f"backup failed: {e}")
+            return False  # 连备份都做不了 = 没权限
+
+    # 2. 尝试替换（os.replace 在 Windows 上对目标进程已退出的文件是原子的）
+    for i in range(max(1, retries)):
+        try:
+            os.replace(src, dst)
+            _log(f"replace: ok ({i} attempts)")
             return True
-        except Exception:
-            time.sleep(0.8)
+        except Exception as e:
+            _log(f"replace attempt {i + 1}/{retries} failed: {e}")
+            time.sleep(0.7)
+
+    # 3. 全部失败 → 恢复备份
+    if backup and os.path.exists(backup) and not os.path.exists(dst):
+        try:
+            os.replace(backup, dst)
+            _log("rollback: restored backup")
+        except Exception as e:
+            _log(f"rollback failed: {e}")
     return False
 
 
-def main() -> int:
+def _clean_onedir_dead_sibling(target_exe: str) -> None:
+    """onefile 覆盖 onedir 启动器后，同级遗留的 _internal/ 等死目录清理。"""
+    exe_dir = os.path.dirname(os.path.abspath(target_exe))
+    if not exe_dir:
+        return
+    for name in ("_internal", "__pycache__"):
+        dead = os.path.join(exe_dir, name)
+        if os.path.isdir(dead):
+            try:
+                shutil.rmtree(dead, ignore_errors=True)
+                _log(f"cleaned dead dir: {dead}")
+            except Exception as e:
+                _log(f"clean dead dir failed: {e}")
+
+
+# ────────── zip 解压 + 路径归一 ─────────────────────────────
+def _extract_zip_normalized(zip_path: str, dest_dir: str) -> str:
+    """解压 zip 到 dest_dir，自动 strip 单一顶层目录（zip 内嵌套一层目录）。
+    返回实际 payload 根目录（可能是 dest_dir 本身，也可能是 strip 后的子目录）。"""
+    os.makedirs(dest_dir, exist_ok=True)
+    with zipfile.ZipFile(zip_path, "r") as zf:
+        zf.extractall(dest_dir)
+    # 检测是否所有文件都在同一顶层目录下
+    entries = set()
+    with zipfile.ZipFile(zip_path, "r") as zf:
+        for name in zf.namelist():
+            # strip 开头的 ./
+            parts = name.replace("\\", "/").lstrip("./").split("/")
+            if parts[0]:
+                entries.add(parts[0])
+    if len(entries) == 1:
+        top = next(iter(entries))
+        candidate = os.path.join(dest_dir, top)
+        if os.path.isdir(candidate):
+            _log(f"zip: strip top folder '{top}', payload={candidate}")
+            return candidate
+    _log(f"zip: no single top folder, payload={dest_dir}")
+    return dest_dir
+
+
+# ────────── 目录整体替换（zip 模式） ──────────────────────────
+def _replace_directory(old_dir: str, new_payload: str, keep_backup: bool = False) -> bool:
+    """备份旧目录为 .bak.时间戳 → 移动新 payload 到旧目录位置 → 清理备份（默认保留最近 3 个）。"""
+    old_dir = os.path.abspath(old_dir)
+    if not os.path.isdir(old_dir):
+        _log(f"replace dir: old_dir {old_dir} not found, treat as fresh install")
+        os.makedirs(old_dir, exist_ok=True)
+        _copy_tree(new_payload, old_dir)
+        return True
+
+    parent = os.path.dirname(old_dir)
+    base = os.path.basename(old_dir)
+    ts = time.strftime("%Y%m%d-%H%M%S")
+    backup_dir = os.path.join(parent, f"{base}.bak.{ts}")
+
+    # 1. 备份旧目录
     try:
-        req = _read_request()
-    except FileNotFoundError:
-        return 0
+        os.rename(old_dir, backup_dir)
+        _log(f"backup dir: {old_dir} -> {backup_dir}")
+    except Exception as e:
+        _log(f"backup dir failed: {e}")
+        return False
+
+    # 2. 移动新 payload 到目标位置
+    try:
+        if os.path.isdir(new_payload):
+            # 直接 rename 最快，但可能跨盘符 → 用 shutil.move
+            moved = shutil.move(new_payload, old_dir)
+            _log(f"move: {new_payload} -> {moved}")
+        else:
+            _log(f"new_payload {new_payload} is not a dir")
+            os.rename(backup_dir, old_dir)  # 恢复
+            return False
+    except Exception as e:
+        _log(f"move failed: {e}")
+        try:
+            os.rename(backup_dir, old_dir)
+        except Exception:
+            pass
+        return False
+
+    # 3. 清理旧备份（保留最近 3 个）
+    if not keep_backup:
+        _prune_old_backups(parent, base, keep=3)
+    return True
+
+
+def _copy_tree(src: str, dst: str) -> None:
+    """递归复制目录树，覆盖目标文件。"""
+    os.makedirs(dst, exist_ok=True)
+    for item in os.listdir(src):
+        s = os.path.join(src, item)
+        d = os.path.join(dst, item)
+        if os.path.isdir(s):
+            _copy_tree(s, d)
+        else:
+            shutil.copy2(s, d)
+
+
+def _prune_old_backups(parent: str, base: str, keep: int = 3) -> None:
+    """清理旧的 .bak.* 目录，只保留最近 keep 个。"""
+    try:
+        backups = sorted(
+            [d for d in os.listdir(parent) if d.startswith(f"{base}.bak.")],
+            reverse=True,
+        )
+        for old in backups[keep:]:
+            old_path = os.path.join(parent, old)
+            try:
+                shutil.rmtree(old_path, ignore_errors=True)
+                _log(f"prune backup: {old_path}")
+            except Exception as e:
+                _log(f"prune failed: {e}")
     except Exception:
-        _log("ERROR: cannot read request file")
+        pass
+
+
+# ────────── 启动新进程 ──────────────────────────────────────
+def _launch_new_exe(exe_path: str) -> bool:
+    try:
+        # --from-update: 让新进程跳过单实例检测（旧 mutex 可能还没完全释放）
+        # CREATE_NEW_CONSOLE：新进程创建独立控制台（真正脱离 update_helper）
+        # CREATE_NO_WINDOW：  控制台窗口不显示
+        subprocess.Popen(
+            [exe_path, "--from-update"],
+            creationflags=subprocess.CREATE_NEW_CONSOLE | subprocess.CREATE_NO_WINDOW,
+        )
+        _log(f"launched: {exe_path} --from-update")
+        return True
+    except Exception as e:
+        _log(f"launch failed: {e}")
+        return False
+
+
+# ────────── 包类型判断 ──────────────────────────────────────
+def _detect_mode(src: str) -> str:
+    ext = os.path.splitext(src)[1].lower()
+    if ext == ".zip":
+        return "zip"
+    if ext in (".exe",):
+        return "onefile"
+    # 尝试打开 zip 看看
+    try:
+        with zipfile.ZipFile(src, "r"):
+            return "zip"
+    except Exception:
+        pass
+    return "onefile"
+
+
+# ────────── 主流程 ───────────────────────────────────────────
+def main(argv: list[str] | None = None) -> int:
+    parser = argparse.ArgumentParser(description="外部独立更新器")
+    parser.add_argument("--src", required=True, help="下载包路径（onefile exe 或 zip）")
+    parser.add_argument("--dst", required=True, help="目标 exe 路径")
+    parser.add_argument("--pid", type=int, default=0, help="当前运行进程 PID，用于等待退出")
+    parser.add_argument("--restart", action="store_true", help="替换完成后启动新进程")
+    parser.add_argument("--mode", choices=["auto", "onefile", "zip"], default="auto")
+    parser.add_argument("--keepbackup", action="store_true", help="保留备份不清理")
+    parser.add_argument("--zip-root", default=None,
+                        help="zip 包内的 exe 相对路径（如 niumasoftware/niumasoftware.exe），"
+                             "不传则自动在解压结果中查找同名 exe")
+    args = parser.parse_args(argv)
+
+    _log(f"=== START args={json.dumps(vars(args))}")
+
+    src = os.path.abspath(args.src)
+    dst = os.path.abspath(args.dst)
+    mode = args.mode if args.mode != "auto" else _detect_mode(src)
+
+    if not os.path.exists(src):
+        _log(f"ERROR: src not found: {src}")
         return 2
 
-    src = str(req.get("src") or "")
-    dst = str(req.get("dst") or "")
-    pid = int(req.get("pid") or 0)
-    restart = bool(req.get("restart", True))
+    # 1. 等待主进程退出
+    if args.pid > 0:
+        if not _wait_process_exit(args.pid, timeout_sec=90):
+            _log("WARN: main process still alive after timeout, attempt replacement anyway")
 
-    if not src or not dst:
-        _log(f"ERROR: bad request src={src!r} dst={dst!r} pid={pid}")
-        return 3
+    if mode == "onefile":
+        # ─── onefile 模式 ────────────────────────────────────
+        _log("mode: onefile exe")
+        dst_dir = os.path.dirname(dst)
+        backup_exe = os.path.join(dst_dir, os.path.basename(dst) + ".bak")
 
-    _log(f"START: pid={pid} src={src} dst={dst}")
+        # 原子替换
+        if not _atomic_replace(src, dst, backup=backup_exe):
+            _log("FATAL: onefile replace failed, cannot continue")
+            return 3
 
-    # 等待主程序退出，最多 60 秒
-    waited = 0.0
-    while _pid_exists(pid) and waited < 60.0:
-        time.sleep(0.5)
-        waited += 0.5
+        # 清理遗留的 onedir 死目录
+        _clean_onedir_dead_sibling(dst)
 
-    ok = _copy_with_retries(src, dst, retries=15)
-    _log(f"COPY: ok={ok}")
-    try:
-        os.remove(src)
-    except Exception:
-        pass
+        # 删备份（保留 1 个版本足够回滚）
+        if os.path.exists(backup_exe):
+            try:
+                # 新 exe 启动正常后用户可以手动删，这里只删旧的 .bak
+                os.remove(backup_exe)
+                _log("backup cleaned")
+            except Exception:
+                pass
 
-    # 清理请求文件（成功/失败都尽量清掉，避免重复执行）
-    try:
-        os.remove(_request_path())
-    except Exception:
-        pass
+        if args.restart:
+            if not _launch_new_exe(dst):
+                return 4
 
-    if ok and restart:
+    elif mode == "zip":
+        # ─── zip 整包模式 ───────────────────────────────────
+        _log("mode: zip full-package")
+        tmp_extract = tempfile.mkdtemp(prefix="niumasoft_update_")
         try:
-            subprocess.Popen([dst], creationflags=subprocess.DETACHED_PROCESS | subprocess.CREATE_NO_WINDOW)
-            _log("RESTART: started")
-        except Exception:
-            _log("RESTART: failed")
-            pass
-        return 0
+            payload_root = _extract_zip_normalized(src, tmp_extract)
 
-    _log("DONE: failed")
-    return 4
+            # 确定旧目录和目标 exe 在旧目录里
+            old_dir = os.path.dirname(dst)
+            new_exe_in_payload = dst  # 默认同名 exe 相对路径
+            if args.zip_root:
+                new_exe_in_payload = os.path.join(payload_root, args.zip_root)
+                if not os.path.exists(new_exe_in_payload):
+                    _log(f"ERROR: --zip-root exe not found: {new_exe_in_payload}")
+                    return 5
+            else:
+                # 自动在 payload 里找同名 exe
+                target_name = os.path.basename(dst)
+                found = None
+                for root, _, files in os.walk(payload_root):
+                    if target_name in files:
+                        found = os.path.join(root, target_name)
+                        break
+                if not found:
+                    _log(f"ERROR: cannot find {target_name!r} in payload {payload_root}")
+                    return 5
+                new_exe_in_payload = found
+                _log(f"auto-found exe in payload: {new_exe_in_payload}")
+
+            # payload 根目录 = exe 所在目录的父级（可能就是 payload_root，也可能子级）
+            payload_exe_dir = os.path.dirname(new_exe_in_payload)
+            if os.path.abspath(payload_exe_dir) != os.path.abspath(payload_root):
+                _log(f"payload exe dir != payload root, using exe dir as new dir root")
+                new_payload = payload_exe_dir
+            else:
+                new_payload = payload_root
+
+            # 替换整个旧目录
+            ok = _replace_directory(old_dir, new_payload, keep_backup=args.keepbackup)
+            if not ok:
+                _log("FATAL: directory replace failed")
+                return 3
+
+            new_dst = os.path.join(old_dir, os.path.basename(dst))
+            if args.restart:
+                if not _launch_new_exe(new_dst):
+                    return 4
+        finally:
+            # 清理临时解压目录
+            shutil.rmtree(tmp_extract, ignore_errors=True)
+            _log(f"cleaned temp: {tmp_extract}")
+
+    else:
+        _log(f"FATAL: unknown mode {mode}")
+        return 1
+
+    _log("=== DONE")
+    return 0
 
 
 if __name__ == "__main__":
-    raise SystemExit(main())
-
+    try:
+        sys.exit(main())
+    except SystemExit:
+        raise
+    except Exception:
+        _log(f"UNCAUGHT: {traceback.format_exc()}")
+        sys.exit(99)