diff --git a/js/script.js b/js/script.js
index b4d7527..8ca1bcd 100644
--- a/js/script.js
+++ b/js/script.js
@@ -1680,16 +1680,17 @@
     function initTextEditorToolbar() {
         // 加粗按钮
         boldBtn.addEventListener('click', () => {
-            if (!editingInput) return;
+            const targetInput = editingInput || selectedInput;
+            if (!targetInput) return;
             const selection = window.getSelection();
             if (selection.rangeCount > 0 && !selection.isCollapsed) {
                 document.execCommand('bold', false, null);
             } else {
                 const isBold = boldBtn.classList.contains('active');
                 if (isBold) {
-                    editingInput.style.fontWeight = 'normal';
+                    targetInput.style.fontWeight = 'normal';
                 } else {
-                    editingInput.style.fontWeight = 'bold';
+                    targetInput.style.fontWeight = 'bold';
                 }
                 boldBtn.classList.toggle('active');
             }
@@ -1697,16 +1698,17 @@
 
         // 斜体按钮
         italicBtn.addEventListener('click', () => {
-            if (!editingInput) return;
+            const targetInput = editingInput || selectedInput;
+            if (!targetInput) return;
             const selection = window.getSelection();
             if (selection.rangeCount > 0 && !selection.isCollapsed) {
                 document.execCommand('italic', false, null);
             } else {
                 const isItalic = italicBtn.classList.contains('active');
                 if (isItalic) {
-                    editingInput.style.fontStyle = 'normal';
+                    targetInput.style.fontStyle = 'normal';
                 } else {
-                    editingInput.style.fontStyle = 'italic';
+                    targetInput.style.fontStyle = 'italic';
                 }
                 italicBtn.classList.toggle('active');
             }
@@ -1714,19 +1716,21 @@
 
         // 颜色选择器
         colorPicker.addEventListener('input', () => {
-            if (!editingInput) return;
+            const targetInput = editingInput || selectedInput;
+            if (!targetInput) return;
             const selection = window.getSelection();
             if (selection.rangeCount > 0 && !selection.isCollapsed) {
                 document.execCommand('foreColor', false, colorPicker.value);
             } else {
-                editingInput.style.color = colorPicker.value;
+                targetInput.style.color = colorPicker.value;
             }
         });
 
         // 字体选择器
         fontPicker.addEventListener('change', () => {
-            if (!editingInput) return;
-            editingInput.style.fontFamily = fontPicker.value + ', sans-serif';
+            const targetInput = editingInput || selectedInput;
+            if (!targetInput) return;
+            targetInput.style.fontFamily = fontPicker.value + ', sans-serif';
         });
 
         // 字号选择器 - 密码锁式滚轮