diff --git a/homebrew/brew-upgrade-manager.sh b/homebrew/brew-upgrade-manager.sh
index 44ba3f9..f377c86 100644
--- a/homebrew/brew-upgrade-manager.sh
+++ b/homebrew/brew-upgrade-manager.sh
@@ -126,7 +126,7 @@ echo -e "\n${CYAN}>>> [2/2] Upgrading GUI Casks (brew cu -yaq)...${NC}"
 export HOMEBREW_COLOR=1
 
 # --- 终端宽度处理 ---
-# 交互式终端里让子进程读取 PTY 的实时尺寸；非交互环境或固定宽度模式下提供 COLUMNS 兜底。
+# 交互式终端里让 brew 直接读取当前 TTY，避免 sudo 时间戳因新建 PTY 失效。
 if [[ -n "$FIXED_TERMINAL_WIDTH" || ! -t 1 ]]; then
     export COLUMNS
     COLUMNS="$(terminal_width)"
@@ -134,91 +134,7 @@ else
     unset COLUMNS
 fi
 
-# 使用 Python 原生 PTY 自建极简转发引擎。它只转发用户输入，不保存、不注入 sudo 密码。
-python3 -c '
-import pty, os, sys, select, fcntl, termios, struct, tty, signal
-
-cmd = sys.argv[1:]
-pid, fd = pty.fork()
-
-if pid == 0:
-    os.execvp(cmd[0], cmd)
-else:
-    def sync_winsize(*_):
-        s = struct.pack("HHHH", 0, 0, 0, 0)
-        try:
-            winsize = fcntl.ioctl(sys.stdout.fileno(), termios.TIOCGWINSZ, s)
-            rows, cols, xpix, ypix = struct.unpack("HHHH", winsize)
-            if rows > 0 and cols > 0:
-                fcntl.ioctl(fd, termios.TIOCSWINSZ, winsize)
-                return
-        except Exception:
-            pass
-
-        try:
-            fallback_cols = int(os.environ.get("COLUMNS", "130") or "130")
-        except ValueError:
-            fallback_cols = 130
-        try:
-            fallback_rows = int(os.environ.get("LINES", "40") or "40")
-        except ValueError:
-            fallback_rows = 40
-        fallback = struct.pack("HHHH", fallback_rows, fallback_cols, 0, 0)
-        fcntl.ioctl(fd, termios.TIOCSWINSZ, fallback)
-
-    sync_winsize()
-    signal.signal(signal.SIGWINCH, sync_winsize)
-
-    stdin_fd = sys.stdin.fileno()
-    stdout_fd = sys.stdout.fileno()
-    forward_stdin = sys.stdin.isatty()
-    old_stdin_attrs = None
-    if forward_stdin:
-        old_stdin_attrs = termios.tcgetattr(stdin_fd)
-        tty.setraw(stdin_fd)
-
-    exit_code = 0
-    try:
-        while True:
-            try:
-                watch = [fd]
-                if forward_stdin:
-                    watch.append(stdin_fd)
-                try:
-                    rfds, _, _ = select.select(watch, [], [], 0.1)
-                except InterruptedError:
-                    continue
-
-                if fd in rfds:
-                    data = os.read(fd, 8192)
-                    if not data:
-                        break
-                    os.write(stdout_fd, data)
-
-                if forward_stdin and stdin_fd in rfds:
-                    data = os.read(stdin_fd, 8192)
-                    if data:
-                        os.write(fd, data)
-
-            except OSError:
-                break
-
-            try:
-                wpid, wstatus = os.waitpid(pid, os.WNOHANG)
-                if wpid == pid:
-                    if os.WIFEXITED(wstatus):
-                        exit_code = os.WEXITSTATUS(wstatus)
-                    else:
-                        exit_code = 1
-                    break
-            except ChildProcessError:
-                break
-    finally:
-        if old_stdin_attrs is not None:
-            termios.tcsetattr(stdin_fd, termios.TCSADRAIN, old_stdin_attrs)
-
-    sys.exit(exit_code)
-' brew cu -yaq
+brew cu -yaq
 
 separator
 printf "\n"