diff --git a/CustomKeyboard/View/KBKeyboardView.m b/CustomKeyboard/View/KBKeyboardView.m
index 9b1dab4..622d270 100644
--- a/CustomKeyboard/View/KBKeyboardView.m
+++ b/CustomKeyboard/View/KBKeyboardView.m
@@ -21,7 +21,8 @@
     if (self = [super initWithFrame:frame]) {
         self.backgroundColor = [UIColor colorWithWhite:0.95 alpha:1.0];
         _layoutStyle = KBKeyboardLayoutStyleLetters;
-        _shiftOn = YES; // 初始使用大写，贴近截图效果
+        // 默认小写：与需求一致，初始不开启 Shift
+        _shiftOn = NO;
         [self buildBase];
         [self reloadKeys];
     }
@@ -108,14 +109,24 @@
     NSArray *r3chars = @[ @"Z", @"X", @"C", @"V", @"B", @"N", @"M" ];
 
     NSMutableArray *row1 = [NSMutableArray arrayWithCapacity:r1.count];
-    for (NSString *s in r1) { [row1 addObject:[KBKey keyWithTitle:s output:(self.shiftOn ? s : s.lowercaseString)]]; }
+    // 字母键标题与输出同时随 Shift 切换大小写，界面与输入保持一致
+    for (NSString *s in r1) {
+        NSString *shown = self.shiftOn ? s : s.lowercaseString;
+        [row1 addObject:[KBKey keyWithTitle:shown output:shown]];
+    }
 
     NSMutableArray *row2 = [NSMutableArray arrayWithCapacity:r2.count];
-    for (NSString *s in r2) { [row2 addObject:[KBKey keyWithTitle:s output:(self.shiftOn ? s : s.lowercaseString)]]; }
+    for (NSString *s in r2) {
+        NSString *shown = self.shiftOn ? s : s.lowercaseString;
+        [row2 addObject:[KBKey keyWithTitle:shown output:shown]];
+    }
 
     NSMutableArray *row3 = [NSMutableArray array];
     [row3 addObject:[KBKey keyWithTitle:@"⇧" type:KBKeyTypeShift]];
-    for (NSString *s in r3chars) { [row3 addObject:[KBKey keyWithTitle:s output:(self.shiftOn ? s : s.lowercaseString)]]; }
+    for (NSString *s in r3chars) {
+        NSString *shown = self.shiftOn ? s : s.lowercaseString;
+        [row3 addObject:[KBKey keyWithTitle:shown output:shown]];
+    }
     [row3 addObject:[KBKey keyWithTitle:@"⌫" type:KBKeyTypeBackspace]];
 
     NSArray *row4 = @[ [KBKey keyWithTitle:@"123" type:KBKeyTypeModeChange],
diff --git a/keyBoard.xcodeproj/project.pbxproj b/keyBoard.xcodeproj/project.pbxproj
index bbfd922..84a98a7 100644
--- a/keyBoard.xcodeproj/project.pbxproj
+++ b/keyBoard.xcodeproj/project.pbxproj
@@ -163,10 +163,10 @@
 				04C6EADC2EAF8CEB0089C901 /* KBToolBar.m */,
 				04FC95682EB05497007BD342 /* KBKeyButton.h */,
 				04FC95692EB05497007BD342 /* KBKeyButton.m */,
-				04FC95772EB09BC8007BD342 /* KBKeyBoardMainView.h */,
-				04FC95782EB09BC8007BD342 /* KBKeyBoardMainView.m */,
 				04FC956B2EB054B7007BD342 /* KBKeyboardView.h */,
 				04FC956C2EB054B7007BD342 /* KBKeyboardView.m */,
+				04FC95772EB09BC8007BD342 /* KBKeyBoardMainView.h */,
+				04FC95782EB09BC8007BD342 /* KBKeyBoardMainView.m */,
 				04FC956E2EB09516007BD342 /* KBFunctionView.h */,
 				04FC956F2EB09516007BD342 /* KBFunctionView.m */,
 				04FC95712EB09570007BD342 /* KBFunctionBarView.h */,