diff --git a/nebula_app/src/gpui_shell/terminal/keymap.rs b/nebula_app/src/gpui_shell/terminal/keymap.rs
index 01c1db7..0089798 100644
--- a/nebula_app/src/gpui_shell/terminal/keymap.rs
+++ b/nebula_app/src/gpui_shell/terminal/keymap.rs
@@ -589,45 +589,28 @@ mod tests {
     /// 当按键已处理、不再 TranslateMessage，中文组字起不来。
     #[cfg(windows)]
     #[test]
-    fn win32_mode_preserves_text_input_and_modified_slash() {
+    fn unmodified_letters_stay_on_the_ime_path_in_win32_mode() {
         let mode = TermMode::WIN32_INPUT_MODE;
         assert_eq!(encode(&keystroke("n"), &mode), None);
         assert_eq!(encode(&keystroke("a"), &mode), None);
         assert_eq!(encode(&keystroke("1"), &mode), None);
         assert_eq!(encode(&keystroke("space"), &mode), None);
-        assert_eq!(encode(&keystroke("/"), &mode), None);
-        assert_eq!(encode(&keystroke("?"), &mode), None);
-        assert_eq!(encode(&Keystroke::parse("shift-/").unwrap(), &mode), None);
         // Ctrl+C 仍走记录，不能为了 IME 把快捷键也放掉。
         let mut ctrl_c = keystroke("c");
         ctrl_c.modifiers.control = true;
         assert!(encode(&ctrl_c, &mode).is_some());
         assert!(encode(&keystroke("escape"), &mode).is_some());
-
-        use windows_sys::Win32::UI::Input::KeyboardAndMouse::{
-            MAPVK_VK_TO_VSC, MapVirtualKeyW, VkKeyScanW,
-        };
-
-        let key = Keystroke::parse("ctrl-/").unwrap();
-        let mapping = unsafe { VkKeyScanW(b'/' as u16) } as u16;
-        let vk = mapping & 0xff;
-        let scan = unsafe { MapVirtualKeyW(u32::from(vk), MAPVK_VK_TO_VSC) };
-        let modifiers = 8 | ((mapping >> 8 & 1) << 4) | ((mapping >> 8 & 4) >> 1);
-        assert_eq!(
-            encode(&key, &TermMode::WIN32_INPUT_MODE),
-            Some(
-                format!("\x1b[{vk};{scan};0;1;{modifiers};1_\x1b[{vk};{scan};0;0;{modifiers};1_")
-                    .into_bytes()
-            )
-        );
     }
 
+    #[cfg(windows)]
     #[test]
-    fn ctrl_slash_keeps_legacy_and_kitty_encodings() {
+    fn ctrl_slash_uses_its_windows_virtual_key() {
+        use windows_sys::Win32::UI::Input::KeyboardAndMouse::VkKeyScanW;
+
         let key = Keystroke::parse("ctrl-/").unwrap();
-        assert_eq!(encode(&key, &TermMode::default()), Some(b"\x1f".to_vec()));
-        let mode = TermMode::WIN32_INPUT_MODE | TermMode::DISAMBIGUATE_ESC_CODES;
-        assert_eq!(encode(&key, &mode), Some(b"\x1b[47;5u".to_vec()));
+        let vk = unsafe { VkKeyScanW(b'/' as u16) } as u16 & 0xff;
+        let encoded = encode(&key, &TermMode::WIN32_INPUT_MODE).unwrap();
+        assert!(encoded.starts_with(format!("\x1b[{vk};").as_bytes()));
     }
 
     /// 普通空格与字母使用同一文本输入路径：英语布局最终提交 `" "`，IME
diff --git a/nebula_app/src/gpui_shell/terminal/keymap/win32.rs b/nebula_app/src/gpui_shell/terminal/keymap/win32.rs
index 771870b..2e0aef4 100644
--- a/nebula_app/src/gpui_shell/terminal/keymap/win32.rs
+++ b/nebula_app/src/gpui_shell/terminal/keymap/win32.rs
@@ -2,7 +2,7 @@
 
 use gpui::Keystroke;
 
-/// 普通可打印字符必须交给 IME / `TranslateMessage`，不能编进 PTY。
+/// 无修饰的字母/数字/空格必须交给 IME / `TranslateMessage`，不能编进 PTY。
 ///
 /// GPUI 的 Windows 后端：`on_key_down` 一旦 `stop_propagation`，就不会再
 /// `TranslateMessage`。IME 组字（微软拼音）是 TranslateMessage 喂进去的；
@@ -18,7 +18,7 @@ pub(super) fn win32_encodes_keystroke(ks: &Keystroke) -> bool {
     }
     let mut chars = key.chars();
     match (chars.next(), chars.next()) {
-        (Some(c), None) if c.is_ascii_graphic() => false,
+        (Some(c), None) if c.is_ascii_alphanumeric() => false,
         _ => true,
     }
 }