diff --git a/src/entrypoints/background.ts b/src/entrypoints/background.ts
index d1b177b..90f0771 100644
--- a/src/entrypoints/background.ts
+++ b/src/entrypoints/background.ts
@@ -65,8 +65,8 @@ export default defineBackground(() => {
     const tabId = sender?.tab?.id;
 
     if (!tabId) {
-      console.warn('[RightClickRestorer] Injection request missing tabId');
-      return { success: false, message: 'Missing tabId' };
+      console.warn('[RightClickRestorer] 注入请求缺少 tabId');
+      return { success: false, message: '缺少 tabId' };
     }
 
     try {
@@ -79,7 +79,7 @@ export default defineBackground(() => {
       return { success: true };
     } catch (err) {
       const errorMsg = err instanceof Error ? err.message : String(err);
-      console.error('[RightClickRestorer] executeScript failed:', errorMsg);
+      console.error('[RightClickRestorer] 执行脚本失败:', errorMsg);
       return { success: false, message: errorMsg };
     }
   });
diff --git a/src/entrypoints/content/uiPopover.ts b/src/entrypoints/content/uiPopover.ts
index faf985e..e9a514c 100644
--- a/src/entrypoints/content/uiPopover.ts
+++ b/src/entrypoints/content/uiPopover.ts
@@ -137,12 +137,11 @@ function escapeHtml(text: string): string {
 }
 
 function positionPopover(popover: HTMLElement, x: number, y: number): void {
-  // 此时借助 visibility: hidden，元素在隐藏状态下拥有真实的布局高宽
   const rect = popover.getBoundingClientRect();
   const viewportWidth = window.innerWidth;
   const viewportHeight = window.innerHeight;
 
-  let left = x + 8; // 微微追加水平偏置，防范直接遮挡用户的鼠标落点
+  let left = x + 8;
   let top = y + 8;
 
   if (left + rect.width > viewportWidth - 16) {
@@ -178,7 +177,7 @@ function showPopover(
 
     const titleSpan = document.createElement('span');
     titleSpan.className = 'popover-title';
-    titleSpan.textContent = title; // ✅ 强安全性护航
+    titleSpan.textContent = title;
 
     const closeBtn = document.createElement('button');
     closeBtn.className = 'popover-close';
@@ -194,10 +193,9 @@ function showPopover(
 
   const contentContainer = document.createElement('div');
   contentContainer.className = 'popover-content';
-  contentContainer.innerHTML = contentHtml; // 内部拼装的方法已提前完成全消毒转义
+  contentContainer.innerHTML = contentHtml;
   popover.appendChild(contentContainer);
 
-  // 提前移除激活类名，使 visibility: hidden 起效以供测量
   popover.classList.remove('visible');
 
   requestAnimationFrame(() => {
@@ -226,7 +224,6 @@ export function hidePopover(): void {
 }
 
 export function showTimestampResult(x: number, y: number, timestamp: string, result: string): void {
-  // 对外部传来的参数先全数塞入 escapeHtml 大闸进行纯氧化清洗
   const cleanTimestamp = escapeHtml(timestamp);
   const cleanResult = escapeHtml(result);
 
@@ -236,7 +233,7 @@ export function showTimestampResult(x: number, y: number, timestamp: string, res
     <div class="popover-label">转换结果</div>
     <div class="popover-value">${cleanResult}</div>
   `;
-  showPopover(x, y, content, '⏰ 时间戳转换');
+  showPopover(x, y, content, '转换结果');
 }
 
 export function showTextStatsResult(
@@ -246,7 +243,6 @@ export function showTextStatsResult(
   stats: { characters: number; words: number; lines: number; bytes: number },
 ): void {
   const truncatedText = text.length > 50 ? text.substring(0, 50) + '...' : text;
-  // 对选中的脏文本先进行严格转义
   const cleanText = escapeHtml(truncatedText);
 
   const content = `
@@ -271,5 +267,5 @@ export function showTextStatsResult(
       </div>
     </div>
   `;
-  showPopover(x, y, content, '📊 文本统计');
+  showPopover(x, y, content, '统计结果');
 }
diff --git a/src/pages/Base64Converter/components/Base64ConverterSection.tsx b/src/pages/Base64Converter/components/Base64ConverterSection.tsx
index 10c7088..75d19e4 100644
--- a/src/pages/Base64Converter/components/Base64ConverterSection.tsx
+++ b/src/pages/Base64Converter/components/Base64ConverterSection.tsx
@@ -41,6 +41,7 @@ export default function Base64ConverterSection({ mode }: Base64ConverterSectionP
     setCustomFileName,
     resetAll,
     safeFileSelect,
+    maxFileSizeStr,
   } = useBase64Converter({ mode });
 
   const handleDirectionChange = (next: Base64ConvertDirection) => {
@@ -136,7 +137,7 @@ export default function Base64ConverterSection({ mode }: Base64ConverterSectionP
                   {mode === 'image' ? '点击或拖拽图像到此处' : '点击或拖拽文件到此处'}
                 </span>
                 <span className="text-[10px] font-medium text-muted-foreground/60">
-                  {'最大文件大小：{{max}}'}
+                  {`最大文件大小：${maxFileSizeStr}`}
                 </span>
                 {mode === 'image' && (
                   <span className="text-[10px] font-medium text-muted-foreground/50">
diff --git a/src/pages/Base64Converter/components/DecodeResultPaper.tsx b/src/pages/Base64Converter/components/DecodeResultPaper.tsx
index dc9ebb2..0abfeb3 100644
--- a/src/pages/Base64Converter/components/DecodeResultPaper.tsx
+++ b/src/pages/Base64Converter/components/DecodeResultPaper.tsx
@@ -14,7 +14,7 @@ import { Label } from '@/components/ui/label';
 import { formatBytes } from '@/utils/format';
 
 interface DecodeResultPaperProps {
-  /** 标题文案，由调用方传入 i18n key 对应的值（如 decodedFileOutput / decodedImageOutput） */
+  /** 标题文案 */
   title: string;
   /** 解码后推断的 MIME 类型 */
   mimeType: string;
diff --git a/src/pages/TestDataGenerator/components/GenerateButton.tsx b/src/pages/TestDataGenerator/components/GenerateButton.tsx
index 0b577fc..14b0e06 100644
--- a/src/pages/TestDataGenerator/components/GenerateButton.tsx
+++ b/src/pages/TestDataGenerator/components/GenerateButton.tsx
@@ -35,7 +35,7 @@ export default function GenerateButton({
           {progress && (
             <div className="space-y-2">
               <div className="flex items-center justify-between text-xs text-muted-foreground">
-                <span>{'已生成 {{current}} / {{total}} 条'}</span>
+                <span>{`已生成 ${progress.generated} / ${progress.total} 条`}</span>
                 <span>{progress.progress}%</span>
               </div>
               <div className="h-2 bg-muted rounded-full overflow-hidden">
@@ -46,7 +46,7 @@ export default function GenerateButton({
               </div>
               {progress.estimatedTimeLeft !== undefined && (
                 <p className="text-xs text-muted-foreground text-center">
-                  {'预计剩余 {{time}} 秒'}
+                  {`预计剩余 ${progress.estimatedTimeLeft} 秒`}
                 </p>
               )}
             </div>
diff --git a/src/utils/base64Converter.ts b/src/utils/base64Converter.ts
index ce95bc5..a4ae322 100644
--- a/src/utils/base64Converter.ts
+++ b/src/utils/base64Converter.ts
@@ -165,12 +165,12 @@ export function isSupportedImageExtension(fileName: string): boolean {
 export function fileToBase64(file: File): Promise<FileToBase64Result> {
   return new Promise((resolve, reject) => {
     if (!file) {
-      reject(new Error('No file provided'));
+      reject(new Error('未提供文件'));
       return;
     }
 
     if (!isFileSizeValid(file.size)) {
-      reject(new Error(`File size exceeds the limit (${MAX_FILE_SIZE / 1024 / 1024} MB)`));
+      reject(new Error(`文件大小超出限制（最大 ${MAX_FILE_SIZE / 1024 / 1024} MB）`));
       return;
     }
 
@@ -192,7 +192,7 @@ export function fileToBase64(file: File): Promise<FileToBase64Result> {
     };
 
     reader.onerror = () => {
-      reject(new Error('Failed to read file'));
+      reject(new Error('读取文件失败'));
     };
 
     reader.readAsDataURL(file);
@@ -296,7 +296,7 @@ export function base64ToBlob(input: string): Base64ToBlobResult {
   const cleaned = prefixMatch ? trimmed.slice(prefixMatch[0].length) : trimmed;
 
   if (!isValidBase64(cleaned)) {
-    throw new Error('Invalid Base64 string');
+    throw new Error('无效的 Base64 字符串');
   }
 
   const bytes = base64ToBytes(cleaned);