diff --git a/AGENTS.md b/AGENTS.md
new file mode 100644
index 0000000..00ad40f
--- /dev/null
+++ b/AGENTS.md
@@ -0,0 +1,166 @@
+# AGENTS 指南（MyTool）
+
+本文件面向在本仓库内工作的自动化 coding agents，目标是快速、安全地完成任务并保持项目一致性。
+
+## 1. 仓库概览
+- `backend/`：Spring Boot 2.7 + Java 8。
+- `frontend/`：Vue 3 + Vite + TypeScript + Element Plus。
+- `docker/`：单容器部署脚本与镜像构建。
+- 生产环境为同源部署：后端托管前端构建产物。
+
+## 2. Cursor / Copilot 规则检查
+- 已检查 `.cursor/rules/`、`.cursorrules`、`.github/copilot-instructions.md`。
+- 当前仓库未发现上述规则文件。
+- 结论：请以本 `AGENTS.md` 作为主要执行规范。
+
+## 3. 构建 / 运行 / Lint / 测试命令
+
+### 3.1 前端（在 `frontend/` 目录执行）
+安装依赖：
+```bash
+npm ci
+```
+本地开发：
+```bash
+npm run dev
+```
+生产构建：
+```bash
+npm run build
+```
+预览构建：
+```bash
+npm run preview
+```
+Lint（当前为占位脚本）：
+```bash
+npm run lint
+```
+说明：当前 `lint` 实际输出 `no linter configured yet`，不是强校验。
+
+### 3.2 后端（在 `backend/` 目录执行）
+编译：
+```bash
+mvn clean compile
+```
+打包：
+```bash
+mvn clean package
+```
+运行服务：
+```bash
+mvn spring-boot:run
+```
+运行全部测试：
+```bash
+mvn test
+```
+运行单个测试类（重点）：
+```bash
+mvn -Dtest=SomeServiceTest test
+```
+运行单个测试方法（重点）：
+```bash
+mvn -Dtest=SomeServiceTest#shouldHandleEdgeCase test
+```
+跳过测试打包（Docker 构建同策略）：
+```bash
+mvn clean package -DskipTests
+```
+
+### 3.3 Docker（在仓库根目录或 `docker/`）
+启动：
+```bash
+cd docker && docker compose up -d --build
+```
+日志：
+```bash
+cd docker && docker compose logs -f
+```
+停止：
+```bash
+cd docker && docker compose down
+```
+
+## 4. 测试现状
+- `backend/src/test` 已有基础测试（如 `FileTransferUtilsTest`、`DedupServiceInternalTest`、`ConvertServiceInternalTest`、`TraditionalFilterServiceTest`、`ProgressStoreTest`）。
+- 前端未配置 Vitest/Jest，暂无 `*.spec.ts` / `*.test.ts`。
+- 新增功能时，优先补后端单测，至少覆盖核心服务分支。
+- 若引入前端测试框架，需同步更新 `package.json` 与本文件命令。
+
+## 5. 后端代码规范（Java / Spring）
+
+### 5.1 分层与职责
+- 根包固定为 `com.music`。
+- 目录分层遵循 `controller` / `service` / `dto` / `config` / `common` / `exception`。
+- Controller 负责参数校验与编排，不写重业务逻辑。
+- Service 负责核心业务流程，异常要转为可读的业务失败信息。
+
+### 5.2 命名规范
+- 类名：`PascalCase`（如 `ConvertService`、`GlobalExceptionHandler`）。
+- 方法/字段：`camelCase`。
+- 常量：`UPPER_SNAKE_CASE`（如 `LOSSLESS_EXTENSIONS`）。
+- DTO 命名：`XxxRequest` / `XxxResponse`。
+
+### 5.3 导入、格式、语言特性
+- 使用显式 import，避免 `*` 通配符导入。
+- 4 空格缩进，K&R 花括号风格，保持与现有代码一致。
+- 保持 Java 8 兼容，不引入高版本语法。
+- 文件编码 UTF-8。
+
+### 5.4 参数校验与类型
+- 接口入参使用 DTO，并配合 `@Valid`、`@NotBlank` 等注解。
+- 业务模式值（如 `copy`/`move`）做显式校验，错误走业务异常。
+- 路径、文件系统相关逻辑先校验再执行，避免抛裸异常到接口层。
+
+### 5.5 错误处理与返回结构
+- 统一返回 `Result<T>`：成功 `Result.success(...)`，失败 `Result.failure(...)`。
+- 业务异常使用 `BusinessException(code, message)`。
+- 全局异常由 `GlobalExceptionHandler` 兜底处理。
+- 不向前端暴露堆栈或底层实现细节，错误信息保持可读。
+- 异步任务失败需通过进度消息体现失败状态与原因。
+
+## 6. 前端代码规范（Vue 3 + TypeScript）
+
+### 6.1 组织与分层
+- 页面主逻辑放在 `src/components/*Tab.vue`。
+- 请求封装放在 `src/api/*.ts`，组件内不要直接拼 axios 细节。
+- WebSocket 逻辑集中在 `src/composables/useWebSocket.ts`。
+- 全局入口保持在 `src/main.ts`，避免散落初始化逻辑。
+
+### 6.2 命名与类型
+- 组件文件使用 `PascalCase.vue`。
+- 组合式函数使用 `useXxx`。
+- TS 接口和类型用 `PascalCase`。
+- 变量和函数用 `camelCase`。
+- 避免 `any`；优先显式接口、联合类型或 `unknown` + 类型收窄。
+
+### 6.3 编码风格
+- 使用 ESM 导入，默认相对路径。
+- 保持单引号、分号、2 空格缩进。
+- 默认使用 `<script setup lang="ts">`。
+- 组件样式默认 `scoped`，仅在必要场景使用 `:deep(...)`。
+
+### 6.4 状态与异常处理
+- 表单对象优先 `reactive`，标量状态优先 `ref`。
+- 接口返回默认遵循后端 `Result<T>`，通过 `src/api/request.ts` 统一解包。
+- 用户可恢复错误通过 `ElMessage.warning/error` 提示。
+- 长任务遵循“WebSocket 实时 + 轮询兜底”模式，注意组件卸载时清理连接与定时器。
+
+## 7. 代理工作约束
+- 变更前先确认影响层次：后端 DTO/Controller/Service 与前端 api/组件是否要同步。
+- 新增后端接口优先沿用 `/api/...` 风格与现有响应结构。
+- 不随意引入新框架或重型依赖（状态管理、UI 库、构建链）。
+- 新增命令、脚本、测试框架时，务必更新本文件。
+- 提交前至少执行受影响模块的构建或测试命令。
+
+## 8. 提交前快速检查
+- 是否保持 `Result<T>` + 统一异常处理链路？
+- 是否保持前后端字段命名和类型一致（尤其进度消息）？
+- 是否避免在组件中堆叠网络协议细节？
+- 是否给出最小可执行验证命令（build/test）？
+- 是否同步更新文档与脚本说明？
+
+---
+
+若后续新增 Cursor/Copilot 规则文件，请将关键约束合并到本文件，避免规范冲突。
diff --git a/backend/pom.xml b/backend/pom.xml
index eca2bdf..f540202 100644
--- a/backend/pom.xml
+++ b/backend/pom.xml
@@ -72,6 +72,13 @@
             <artifactId>pinyin4j</artifactId>
             <version>2.5.1</version>
         </dependency>
+
+        <!-- OpenCC Java 实现：繁简转换（词典驱动，减少手工维护成本） -->
+        <dependency>
+            <groupId>com.github.houbb</groupId>
+            <artifactId>opencc4j</artifactId>
+            <version>1.13.1</version>
+        </dependency>
     </dependencies>
 
     <build>
@@ -93,4 +100,3 @@
         </plugins>
     </build>
 </project>
-
diff --git a/backend/src/main/java/com/music/common/FileTransferUtils.java b/backend/src/main/java/com/music/common/FileTransferUtils.java
new file mode 100644
index 0000000..5e44531
--- /dev/null
+++ b/backend/src/main/java/com/music/common/FileTransferUtils.java
@@ -0,0 +1,43 @@
+package com.music.common;
+
+import java.io.IOException;
+import java.nio.file.AtomicMoveNotSupportedException;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.nio.file.StandardCopyOption;
+
+/**
+ * 文件传输工具：提供跨文件系统安全移动能力。
+ */
+public final class FileTransferUtils {
+
+    private FileTransferUtils() {
+    }
+
+    /**
+     * 安全移动文件：优先原子移动，失败后回退普通移动，再回退 copy + delete。
+     */
+    public static void moveWithFallback(Path source, Path target) throws IOException {
+        Path parent = target.getParent();
+        if (parent != null) {
+            Files.createDirectories(parent);
+        }
+
+        try {
+            Files.move(source, target, StandardCopyOption.REPLACE_EXISTING, StandardCopyOption.ATOMIC_MOVE);
+            return;
+        } catch (AtomicMoveNotSupportedException ignored) {
+            // 跨文件系统常见，继续回退
+        }
+
+        try {
+            Files.move(source, target, StandardCopyOption.REPLACE_EXISTING);
+            return;
+        } catch (IOException ignored) {
+            // 继续回退到 copy + delete
+        }
+
+        Files.copy(source, target, StandardCopyOption.REPLACE_EXISTING);
+        Files.delete(source);
+    }
+}
diff --git a/backend/src/main/java/com/music/dto/ProgressMessage.java b/backend/src/main/java/com/music/dto/ProgressMessage.java
index efd6e49..129d2f0 100644
--- a/backend/src/main/java/com/music/dto/ProgressMessage.java
+++ b/backend/src/main/java/com/music/dto/ProgressMessage.java
@@ -14,5 +14,19 @@ public class ProgressMessage {
     private String currentFile; // 当前处理文件
     private String message;     // 进度消息
     private boolean completed;  // 是否完成
-}
 
+    // 以下为按任务类型细化后的标准化字段，前端可优先读取
+    private Integer duplicateGroups;   // dedup: 重复组数量
+    private Integer movedFiles;        // dedup: 移动/复制的重复文件数量
+
+    private Integer organizedFiles;    // organize: 整理成功数量
+    private Integer manualFixFiles;    // organize: 需人工修复数量
+
+    private Integer traditionalEntries; // zhconvert: 繁体标签条目数量
+    private Integer failedFiles;        // zhconvert: 失败文件数量
+
+    private Integer albumsMerged;      // merge: 已合并专辑数
+    private Integer tracksMerged;      // merge: 已合并曲目数
+    private Integer upgradedFiles;     // merge: 升级替换文件数
+    private Integer skippedFiles;      // merge: 跳过文件数
+}
diff --git a/backend/src/main/java/com/music/dto/ZhConvertRequest.java b/backend/src/main/java/com/music/dto/ZhConvertRequest.java
index 422766f..dcb2e75 100644
--- a/backend/src/main/java/com/music/dto/ZhConvertRequest.java
+++ b/backend/src/main/java/com/music/dto/ZhConvertRequest.java
@@ -24,7 +24,7 @@ public class ZhConvertRequest {
      * - 预览模式：忽略该字段
      * - 执行模式：
      *   - 为空：在原文件上就地修改标签
-     *   - 非空：在该目录下生成一份带简体标签的副本
+     *   - 非空：将包含繁体标签的文件移动到该目录（保留相对路径）后再修改标签
      */
     private String outputDir;
 
@@ -41,4 +41,3 @@ public class ZhConvertRequest {
     @NotBlank(message = "处理模式不能为空")
     private String mode;
 }
-
diff --git a/backend/src/main/java/com/music/service/AggregatorService.java b/backend/src/main/java/com/music/service/AggregatorService.java
index fa13b2a..90d6f90 100644
--- a/backend/src/main/java/com/music/service/AggregatorService.java
+++ b/backend/src/main/java/com/music/service/AggregatorService.java
@@ -1,5 +1,6 @@
 package com.music.service;
 
+import com.music.common.FileTransferUtils;
 import com.music.dto.ProgressMessage;
 import org.springframework.messaging.simp.SimpMessagingTemplate;
 import org.springframework.scheduling.annotation.Async;
@@ -74,7 +75,7 @@ public class AggregatorService {
                     
                     if ("move".equalsIgnoreCase(mode)) {
                         // 移动模式
-                        Files.move(sourceFile, targetFile, StandardCopyOption.REPLACE_EXISTING);
+                        FileTransferUtils.moveWithFallback(sourceFile, targetFile);
                     } else {
                         // 复制模式
                         Files.copy(sourceFile, targetFile, StandardCopyOption.REPLACE_EXISTING);
diff --git a/backend/src/main/java/com/music/service/ConvertService.java b/backend/src/main/java/com/music/service/ConvertService.java
index a7ff88b..38da759 100644
--- a/backend/src/main/java/com/music/service/ConvertService.java
+++ b/backend/src/main/java/com/music/service/ConvertService.java
@@ -16,6 +16,7 @@ import java.util.HashSet;
 import java.util.List;
 import java.util.Set;
 import java.util.concurrent.atomic.AtomicInteger;
+import java.util.concurrent.TimeUnit;
 
 @Service
 public class ConvertService {
@@ -33,6 +34,9 @@ public class ConvertService {
     ));
 
     private static final int FFMPEG_COMPRESSION_LEVEL = 5;
+    private static final int FFMPEG_CHECK_TIMEOUT_SECONDS = 10;
+    private static final int FFMPEG_CONVERT_TIMEOUT_SECONDS = 600;
+    private static final String FFMPEG_BIN_PROPERTY = "mangtool.ffmpeg.bin";
 
     private final SimpMessagingTemplate messagingTemplate;
     private final ProgressStore progressStore;
@@ -77,6 +81,13 @@ public class ConvertService {
                 Files.createDirectories(dstPath);
             }
 
+            // 预检查 ffmpeg 可用性
+            String ffmpegCheckError = checkFfmpegAvailable();
+            if (ffmpegCheckError != null) {
+                sendProgress(taskId, 0, 0, 0, 0, null, ffmpegCheckError, true);
+                return;
+            }
+
             // 扫描输入目录，查找需要转换的文件
             List<Path> toConvert = new ArrayList<>();
             Files.walkFileTree(srcPath, new SimpleFileVisitor<Path>() {
@@ -128,10 +139,11 @@ public class ConvertService {
                             "已处理: " + fileName, false);
                 } catch (Exception e) {
                     failed.incrementAndGet();
-                    log.warn("转码失败: {} - {}", fileName, e.getMessage());
+                    String reason = classifyConvertError(e);
+                    log.warn("转码失败: {} - {}", fileName, reason);
                     sendProgress(taskId, total, processed.incrementAndGet(),
                             success.get(), failed.get(), fileName,
-                            "转码失败: " + fileName + " - " + e.getMessage(), false);
+                            "转码失败: " + fileName + " - " + reason, false);
                 }
             }
 
@@ -165,7 +177,7 @@ public class ConvertService {
 
     private void runFfmpeg(Path input, Path output) throws IOException, InterruptedException {
         ProcessBuilder pb = new ProcessBuilder(
-                "ffmpeg",
+                getFfmpegCommand(),
                 "-y",
                 "-i", input.toAbsolutePath().toString(),
                 "-compression_level", String.valueOf(FFMPEG_COMPRESSION_LEVEL),
@@ -173,12 +185,66 @@ public class ConvertService {
         );
         pb.redirectErrorStream(true);
         Process p = pb.start();
-        int exit = p.waitFor();
+        boolean finished = p.waitFor(FFMPEG_CONVERT_TIMEOUT_SECONDS, TimeUnit.SECONDS);
+        if (!finished) {
+            p.destroyForcibly();
+            throw new RuntimeException("ffmpeg 转码超时（" + FFMPEG_CONVERT_TIMEOUT_SECONDS + "s）");
+        }
+        int exit = p.exitValue();
         if (exit != 0) {
             throw new RuntimeException("ffmpeg 退出码: " + exit);
         }
     }
 
+    private String checkFfmpegAvailable() {
+        try {
+            ProcessBuilder pb = new ProcessBuilder(getFfmpegCommand(), "-version");
+            pb.redirectErrorStream(true);
+            Process p = pb.start();
+            boolean finished = p.waitFor(FFMPEG_CHECK_TIMEOUT_SECONDS, TimeUnit.SECONDS);
+            if (!finished) {
+                p.destroyForcibly();
+                return "ffmpeg 预检查超时，请检查环境配置";
+            }
+            if (p.exitValue() != 0) {
+                return "ffmpeg 不可用，请确认已正确安装并加入 PATH";
+            }
+            return null;
+        } catch (IOException e) {
+            return "ffmpeg 不可用，请确认已正确安装并加入 PATH";
+        } catch (InterruptedException e) {
+            Thread.currentThread().interrupt();
+            return "ffmpeg 预检查被中断";
+        }
+    }
+
+    private String classifyConvertError(Exception e) {
+        if (e instanceof InterruptedException) {
+            Thread.currentThread().interrupt();
+            return "任务线程被中断";
+        }
+
+        String message = e.getMessage();
+        if (message == null || message.trim().isEmpty()) {
+            return "未知错误";
+        }
+        if (message.contains("超时")) {
+            return message;
+        }
+        if (message.contains("ffmpeg 退出码")) {
+            return message + "（可能是源文件损坏或编码不支持）";
+        }
+        return message;
+    }
+
+    private String getFfmpegCommand() {
+        String configured = System.getProperty(FFMPEG_BIN_PROPERTY);
+        if (configured == null || configured.trim().isEmpty()) {
+            return "ffmpeg";
+        }
+        return configured.trim();
+    }
+
     private Path resolveTargetFile(Path targetDir, String fileName) throws IOException {
         Path target = targetDir.resolve(fileName);
         if (!Files.exists(target)) return target;
diff --git a/backend/src/main/java/com/music/service/DedupService.java b/backend/src/main/java/com/music/service/DedupService.java
index 3d9d4c8..562743f 100644
--- a/backend/src/main/java/com/music/service/DedupService.java
+++ b/backend/src/main/java/com/music/service/DedupService.java
@@ -1,5 +1,6 @@
 package com.music.service;
 
+import com.music.common.FileTransferUtils;
 import com.music.dto.ProgressMessage;
 import org.jaudiotagger.audio.AudioFile;
 import org.jaudiotagger.audio.AudioFileIO;
@@ -109,6 +110,7 @@ public class DedupService {
             AtomicInteger duplicateGroups = new AtomicInteger(0);
             AtomicInteger moved = new AtomicInteger(0);
             AtomicInteger failed = new AtomicInteger(0);
+            Set<Path> processedDuplicates = new HashSet<>();
 
             sendProgress(taskId, total, 0, 0, 0,
                     "开始扫描音乐库...", false);
@@ -147,7 +149,7 @@ public class DedupService {
             // 第二阶段：处理 MD5 去重结果（完全二进制重复）
             if (useMd5) {
                 for (Map.Entry<String, List<Path>> entry : md5Groups.entrySet()) {
-                    List<Path> group = entry.getValue();
+                    List<Path> group = filterProcessableCandidates(entry.getValue(), processedDuplicates);
                     if (group.size() <= 1) {
                         continue;
                     }
@@ -158,15 +160,15 @@ public class DedupService {
                     List<Path> duplicates = new ArrayList<>(group);
                     duplicates.remove(keep);
 
-                    moved.addAndGet(handleDuplicates(duplicates, keep, trashPath, mode, taskId, total,
-                            scanned, duplicateGroups, failed));
+                    handleDuplicates(duplicates, keep, trashPath, mode, taskId, total,
+                            scanned, duplicateGroups, moved, failed, processedDuplicates);
                 }
             }
 
             if (useMetadata) {
                 // 第三阶段：处理元数据匹配去重结果
                 for (Map.Entry<MetadataKey, List<Path>> entry : metadataGroups.entrySet()) {
-                    List<Path> group = entry.getValue();
+                    List<Path> group = filterProcessableCandidates(entry.getValue(), processedDuplicates);
                     if (group.size() <= 1) {
                         continue;
                     }
@@ -177,8 +179,8 @@ public class DedupService {
                     List<Path> duplicates = new ArrayList<>(group);
                     duplicates.remove(keep);
 
-                    moved.addAndGet(handleDuplicates(duplicates, keep, trashPath, mode, taskId, total,
-                            scanned, duplicateGroups, failed));
+                    handleDuplicates(duplicates, keep, trashPath, mode, taskId, total,
+                            scanned, duplicateGroups, moved, failed, processedDuplicates);
                 }
             }
 
@@ -362,30 +364,30 @@ public class DedupService {
 
     /**
      * 将重复文件移动/复制到回收站，并更新统计与进度
-     *
-     * @return 实际成功移动/复制的文件数量
      */
-    private int handleDuplicates(List<Path> duplicates,
-                                 Path keep,
-                                 Path trashPath,
-                                 String mode,
-                                 String taskId,
-                                 int total,
-                                 AtomicInteger scanned,
-                                 AtomicInteger duplicateGroups,
-                                 AtomicInteger failed) {
-        int movedCount = 0;
+    private void handleDuplicates(List<Path> duplicates,
+                                  Path keep,
+                                  Path trashPath,
+                                  String mode,
+                                  String taskId,
+                                  int total,
+                                  AtomicInteger scanned,
+                                  AtomicInteger duplicateGroups,
+                                  AtomicInteger moved,
+                                  AtomicInteger failed,
+                                  Set<Path> processedDuplicates) {
         for (Path dup : duplicates) {
             try {
                 Path target = resolveTargetFile(trashPath, dup.getFileName().toString());
                 if ("move".equalsIgnoreCase(mode)) {
-                    Files.move(dup, target, StandardCopyOption.REPLACE_EXISTING);
+                    FileTransferUtils.moveWithFallback(dup, target);
                 } else {
                     Files.copy(dup, target, StandardCopyOption.REPLACE_EXISTING);
                 }
-                movedCount++;
+                moved.incrementAndGet();
+                processedDuplicates.add(toNormalizedAbsolutePath(dup));
                 sendProgress(taskId, total, scanned.get(),
-                        duplicateGroups.get(), movedCount,
+                        duplicateGroups.get(), moved.get(),
                         String.format("重复文件: %s (保留: %s)",
                                 dup.getFileName(), keep.getFileName()),
                         false);
@@ -394,7 +396,24 @@ public class DedupService {
                 log.warn("处理重复文件失败: {}", dup, e);
             }
         }
-        return movedCount;
+    }
+
+    private List<Path> filterProcessableCandidates(List<Path> group, Set<Path> processedDuplicates) {
+        List<Path> candidates = new ArrayList<>(group.size());
+        for (Path file : group) {
+            Path normalized = toNormalizedAbsolutePath(file);
+            if (processedDuplicates.contains(normalized)) {
+                continue;
+            }
+            if (Files.exists(file)) {
+                candidates.add(file);
+            }
+        }
+        return candidates;
+    }
+
+    private Path toNormalizedAbsolutePath(Path path) {
+        return path.toAbsolutePath().normalize();
     }
 
     /**
@@ -424,8 +443,8 @@ public class DedupService {
      * 字段语义（供前端展示用）：
      * - total：扫描到的音频文件总数
      * - processed：已扫描文件数
-     * - success：重复组数量
-     * - failed：移动/复制的重复文件数量
+     * - duplicateGroups / success：重复组数量
+     * - movedFiles / failed：移动/复制的重复文件数量
      *
      * 由于进度字段在不同任务中的含义略有差异，前端可根据 type === "dedup" 做专门映射。
      */
@@ -443,6 +462,8 @@ public class DedupService {
         pm.setProcessed(processed);
         pm.setSuccess(success);
         pm.setFailed(failed);
+        pm.setDuplicateGroups(success);
+        pm.setMovedFiles(failed);
         pm.setCurrentFile(null);
         pm.setMessage(message);
         pm.setCompleted(completed);
@@ -451,4 +472,3 @@ public class DedupService {
         messagingTemplate.convertAndSend("/topic/progress/" + taskId, pm);
     }
 }
-
diff --git a/backend/src/main/java/com/music/service/LibraryMergeService.java b/backend/src/main/java/com/music/service/LibraryMergeService.java
index ae77ae2..e9e95b8 100644
--- a/backend/src/main/java/com/music/service/LibraryMergeService.java
+++ b/backend/src/main/java/com/music/service/LibraryMergeService.java
@@ -1,5 +1,6 @@
 package com.music.service;
 
+import com.music.common.FileTransferUtils;
 import com.music.dto.ProgressMessage;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
@@ -29,6 +30,9 @@ public class LibraryMergeService {
 
     private static final Set<String> LYRICS_EXTENSIONS = new HashSet<>(Arrays.asList("lrc"));
     private static final Set<String> COVER_NAMES = new HashSet<>(Arrays.asList("cover.jpg", "cover.png", "folder.jpg", "folder.png"));
+    private static final Set<String> EXCLUDED_ROOT_DIRS = new HashSet<>(Arrays.asList(
+            "_Manual_Fix_Required_", "_Reports"
+    ));
 
     private final SimpMessagingTemplate messagingTemplate;
     private final ProgressStore progressStore;
@@ -46,19 +50,19 @@ public class LibraryMergeService {
         try {
             // 基本校验
             if (srcDir == null || srcDir.trim().isEmpty()) {
-                sendProgress(taskId, 0, 0, 0, 0, 0, null, "源目录不能为空", true);
+                sendProgress(taskId, 0, 0, 0, 0, 0, 0, null, "源目录不能为空", true);
                 return;
             }
             if (!Files.exists(srcPath) || !Files.isDirectory(srcPath)) {
-                sendProgress(taskId, 0, 0, 0, 0, 0, null, "源目录不存在或不是目录", true);
+                sendProgress(taskId, 0, 0, 0, 0, 0, 0, null, "源目录不存在或不是目录", true);
                 return;
             }
             if (dstDir == null || dstDir.trim().isEmpty()) {
-                sendProgress(taskId, 0, 0, 0, 0, 0, null, "目标目录不能为空", true);
+                sendProgress(taskId, 0, 0, 0, 0, 0, 0, null, "目标目录不能为空", true);
                 return;
             }
             if (srcPath.normalize().equals(dstPath.normalize())) {
-                sendProgress(taskId, 0, 0, 0, 0, 0, null, "源目录与目标目录不能相同", true);
+                sendProgress(taskId, 0, 0, 0, 0, 0, 0, null, "源目录与目标目录不能相同", true);
                 return;
             }
 
@@ -72,6 +76,14 @@ public class LibraryMergeService {
             Map<Path, Path> coverMap = new HashMap<>(); // 专辑目录 -> 封面文件
 
             Files.walkFileTree(srcPath, new SimpleFileVisitor<Path>() {
+                @Override
+                public FileVisitResult preVisitDirectory(Path dir, BasicFileAttributes attrs) {
+                    if (isExcludedSystemDirectory(srcPath, dir)) {
+                        return FileVisitResult.SKIP_SUBTREE;
+                    }
+                    return FileVisitResult.CONTINUE;
+                }
+
                 @Override
                 public FileVisitResult visitFile(Path file, BasicFileAttributes attrs) {
                     String fileName = file.getFileName().toString().toLowerCase();
@@ -97,7 +109,7 @@ public class LibraryMergeService {
 
             int total = audioFiles.size();
             if (total == 0) {
-                sendProgress(taskId, 0, 0, 0, 0, 0, null, "未在源目录中找到音频文件", true);
+                sendProgress(taskId, 0, 0, 0, 0, 0, 0, null, "未在源目录中找到音频文件", true);
                 return;
             }
 
@@ -109,7 +121,7 @@ public class LibraryMergeService {
 
             Set<String> processedAlbums = new HashSet<>();
 
-            sendProgress(taskId, total, 0, 0, 0, 0, null, "开始合并...", false);
+            sendProgress(taskId, total, 0, 0, 0, 0, 0, null, "开始合并...", false);
 
             for (Path audioFile : audioFiles) {
                 try {
@@ -141,7 +153,7 @@ public class LibraryMergeService {
                                             targetPath.getFileName().toString() + ".backup");
                                     Files.copy(targetPath, backupPath, StandardCopyOption.REPLACE_EXISTING);
                                 }
-                                Files.move(audioFile, targetPath, StandardCopyOption.REPLACE_EXISTING);
+                                FileTransferUtils.moveWithFallback(audioFile, targetPath);
                                 wasUpgraded = true;
                                 upgraded.incrementAndGet();
                             } else {
@@ -149,7 +161,7 @@ public class LibraryMergeService {
                                 int p = processed.incrementAndGet();
                                 if (p % 20 == 0 || p == total) {
                                     sendProgress(taskId, total, p, albumsMerged.get(), tracksMerged.get(),
-                                            upgraded.get(), audioFile.getFileName().toString(),
+                                            upgraded.get(), skipped.get(), audioFile.getFileName().toString(),
                                             String.format("已处理 %d/%d (升级: %d)", p, total, upgraded.get()), false);
                                 }
                                 continue; // 跳过，不升级
@@ -160,7 +172,7 @@ public class LibraryMergeService {
                             int p = processed.incrementAndGet();
                             if (p % 20 == 0 || p == total) {
                                 sendProgress(taskId, total, p, albumsMerged.get(), tracksMerged.get(),
-                                        upgraded.get(), audioFile.getFileName().toString(),
+                                        upgraded.get(), skipped.get(), audioFile.getFileName().toString(),
                                         String.format("已处理 %d/%d (升级: %d)", p, total, upgraded.get()), false);
                             }
                             continue;
@@ -168,7 +180,7 @@ public class LibraryMergeService {
                     } else {
                         // 新文件，直接移动
                         Files.createDirectories(targetPath.getParent());
-                        Files.move(audioFile, targetPath, StandardCopyOption.REPLACE_EXISTING);
+                        FileTransferUtils.moveWithFallback(audioFile, targetPath);
                     }
 
                     tracksMerged.incrementAndGet();
@@ -178,7 +190,7 @@ public class LibraryMergeService {
                     if (lyricsFile != null && Files.exists(lyricsFile)) {
                         Path lyricsTarget = targetPath.resolveSibling(lyricsFile.getFileName().toString());
                         if (!Files.exists(lyricsTarget) || wasUpgraded) {
-                            Files.move(lyricsFile, lyricsTarget, StandardCopyOption.REPLACE_EXISTING);
+                            FileTransferUtils.moveWithFallback(lyricsFile, lyricsTarget);
                         }
                     }
 
@@ -190,7 +202,7 @@ public class LibraryMergeService {
                             Path coverTarget = albumDir.resolve("cover.jpg");
                             if (!Files.exists(coverTarget)) {
                                 // 目标目录没有封面，直接移动
-                                Files.move(coverFile, coverTarget, StandardCopyOption.REPLACE_EXISTING);
+                                FileTransferUtils.moveWithFallback(coverFile, coverTarget);
                             } else {
                                 // 比较封面，保留更好的版本
                                 if (isBetterCover(coverFile, coverTarget)) {
@@ -198,7 +210,7 @@ public class LibraryMergeService {
                                         Path backupPath = coverTarget.resolveSibling("cover.jpg.backup");
                                         Files.copy(coverTarget, backupPath, StandardCopyOption.REPLACE_EXISTING);
                                     }
-                                    Files.move(coverFile, coverTarget, StandardCopyOption.REPLACE_EXISTING);
+                                    FileTransferUtils.moveWithFallback(coverFile, coverTarget);
                                 }
                             }
                         }
@@ -212,20 +224,20 @@ public class LibraryMergeService {
                 int p = processed.incrementAndGet();
                 if (p % 20 == 0 || p == total) {
                     sendProgress(taskId, total, p, albumsMerged.get(), tracksMerged.get(),
-                            upgraded.get(), audioFile.getFileName().toString(),
+                            upgraded.get(), skipped.get(), audioFile.getFileName().toString(),
                             String.format("已处理 %d/%d (升级: %d)", p, total, upgraded.get()), false);
                 }
             }
 
             sendProgress(taskId, total, processed.get(), albumsMerged.get(), tracksMerged.get(),
-                    upgraded.get(), null,
+                    upgraded.get(), skipped.get(), null,
                     String.format("合并完成！专辑: %d, 曲目: %d, 升级: %d, 跳过: %d",
                             albumsMerged.get(), tracksMerged.get(), upgraded.get(), skipped.get()),
                     true);
 
         } catch (Exception e) {
             log.error("合并任务执行失败", e);
-            sendProgress(taskId, 0, 0, 0, 0, 0, null, "任务执行失败: " + e.getMessage(), true);
+            sendProgress(taskId, 0, 0, 0, 0, 0, 0, null, "任务执行失败: " + e.getMessage(), true);
         }
     }
 
@@ -325,11 +337,29 @@ public class LibraryMergeService {
         return i > 0 ? fileName.substring(0, i) : fileName;
     }
 
+    private boolean isExcludedSystemDirectory(Path sourceRoot, Path dir) {
+        if (dir == null || sourceRoot == null) {
+            return false;
+        }
+        if (dir.equals(sourceRoot)) {
+            return false;
+        }
+
+        Path relative = sourceRoot.relativize(dir);
+        if (relative.getNameCount() <= 0) {
+            return false;
+        }
+
+        String firstSegment = relative.getName(0).toString();
+        return EXCLUDED_ROOT_DIRS.contains(firstSegment);
+    }
+
     /**
      * 发送进度消息
      */
     private void sendProgress(String taskId, int total, int processed, int albumsMerged,
-                             int tracksMerged, int upgraded, String currentFile, String message, boolean completed) {
+                             int tracksMerged, int upgraded, int skipped,
+                             String currentFile, String message, boolean completed) {
         try {
             ProgressMessage pm = new ProgressMessage();
             pm.setTaskId(taskId);
@@ -338,6 +368,10 @@ public class LibraryMergeService {
             pm.setProcessed(processed);
             pm.setSuccess(albumsMerged); // 使用 success 字段存储专辑数
             pm.setFailed(tracksMerged);  // 使用 failed 字段存储曲目数
+            pm.setAlbumsMerged(albumsMerged);
+            pm.setTracksMerged(tracksMerged);
+            pm.setUpgradedFiles(upgraded);
+            pm.setSkippedFiles(skipped);
             pm.setCurrentFile(currentFile);
             pm.setMessage(message);
             pm.setCompleted(completed);
diff --git a/backend/src/main/java/com/music/service/OrganizeService.java b/backend/src/main/java/com/music/service/OrganizeService.java
index b9a6ffc..78da35a 100644
--- a/backend/src/main/java/com/music/service/OrganizeService.java
+++ b/backend/src/main/java/com/music/service/OrganizeService.java
@@ -1,5 +1,6 @@
 package com.music.service;
 
+import com.music.common.FileTransferUtils;
 import com.music.dto.ProgressMessage;
 import net.sourceforge.pinyin4j.PinyinHelper;
 import net.sourceforge.pinyin4j.format.HanyuPinyinCaseType;
@@ -194,7 +195,7 @@ public class OrganizeService {
 
                     Files.createDirectories(destDir);
                     Path destFile = resolveTargetFile(destDir, destFileName);
-                    Files.move(file, destFile, StandardCopyOption.REPLACE_EXISTING);
+                    FileTransferUtils.moveWithFallback(file, destFile);
                     organized.incrementAndGet();
 
                     String albumKey = (isVarious ? VARIOUS_ARTISTS : index + "|" + safeArtist) + "|" + safeAlbum + "|" + year;
@@ -258,7 +259,7 @@ public class OrganizeService {
             Path sub = manualRoot.resolve(reason);
             Files.createDirectories(sub);
             Path target = resolveTargetFile(sub, fileName);
-            Files.move(file, target, StandardCopyOption.REPLACE_EXISTING);
+            FileTransferUtils.moveWithFallback(file, target);
             manualFix.incrementAndGet();
         } catch (IOException e) {
             log.warn("移动至人工修复目录失败: {} - {}", file, e.getMessage());
@@ -461,6 +462,8 @@ public class OrganizeService {
             pm.setProcessed(processed);
             pm.setSuccess(success);
             pm.setFailed(failed);
+            pm.setOrganizedFiles(success);
+            pm.setManualFixFiles(failed);
             pm.setCurrentFile(currentFile);
             pm.setMessage(message);
             pm.setCompleted(completed);
diff --git a/backend/src/main/java/com/music/service/ProgressStore.java b/backend/src/main/java/com/music/service/ProgressStore.java
index 77fbd1b..3e9ff91 100644
--- a/backend/src/main/java/com/music/service/ProgressStore.java
+++ b/backend/src/main/java/com/music/service/ProgressStore.java
@@ -3,7 +3,10 @@ package com.music.service;
 import com.music.dto.ProgressMessage;
 import org.springframework.stereotype.Service;
 
+import java.util.Iterator;
+import java.util.Map;
 import java.util.concurrent.ConcurrentHashMap;
+import java.util.concurrent.atomic.AtomicInteger;
 
 /**
  * 进度缓存：用于 WebSocket 消息丢失时的兜底查询
@@ -11,20 +14,55 @@ import java.util.concurrent.ConcurrentHashMap;
 @Service
 public class ProgressStore {
 
-    private final ConcurrentHashMap<String, ProgressMessage> latest = new ConcurrentHashMap<>();
+    private static final long EXPIRE_MILLIS = 30L * 60L * 1000L;
+
+    private final ConcurrentHashMap<String, StoredProgress> latest = new ConcurrentHashMap<>();
+    private final AtomicInteger writeCounter = new AtomicInteger(0);
 
     public void put(ProgressMessage message) {
         if (message == null || message.getTaskId() == null) {
             return;
         }
-        latest.put(message.getTaskId(), message);
+        long now = System.currentTimeMillis();
+        latest.put(message.getTaskId(), new StoredProgress(message, now));
+        if (writeCounter.incrementAndGet() % 100 == 0) {
+            cleanupExpired(now);
+        }
     }
 
     public ProgressMessage get(String taskId) {
         if (taskId == null) {
             return null;
         }
-        return latest.get(taskId);
+        StoredProgress stored = latest.get(taskId);
+        if (stored == null) {
+            return null;
+        }
+        long now = System.currentTimeMillis();
+        if (now - stored.updatedAt > EXPIRE_MILLIS) {
+            latest.remove(taskId, stored);
+            return null;
+        }
+        return stored.message;
+    }
+
+    private void cleanupExpired(long now) {
+        Iterator<Map.Entry<String, StoredProgress>> it = latest.entrySet().iterator();
+        while (it.hasNext()) {
+            Map.Entry<String, StoredProgress> entry = it.next();
+            if (now - entry.getValue().updatedAt > EXPIRE_MILLIS) {
+                it.remove();
+            }
+        }
+    }
+
+    private static class StoredProgress {
+        private final ProgressMessage message;
+        private final long updatedAt;
+
+        private StoredProgress(ProgressMessage message, long updatedAt) {
+            this.message = message;
+            this.updatedAt = updatedAt;
+        }
     }
 }
-
diff --git a/backend/src/main/java/com/music/service/TraditionalFilterService.java b/backend/src/main/java/com/music/service/TraditionalFilterService.java
index 4567ecd..606d67b 100644
--- a/backend/src/main/java/com/music/service/TraditionalFilterService.java
+++ b/backend/src/main/java/com/music/service/TraditionalFilterService.java
@@ -1,5 +1,6 @@
 package com.music.service;
 
+import com.github.houbb.opencc4j.util.ZhConverterUtil;
 import org.springframework.stereotype.Service;
 
 import java.util.HashMap;
@@ -54,7 +55,148 @@ public class TraditionalFilterService {
         addMapping('錄', '录');
         addMapping('戲', '戏');
         addMapping('畫', '画');
-        addMapping('聲', '声');
+        addMapping('專', '专');
+        addMapping('業', '业');
+        addMapping('劃', '划');
+        addMapping('劍', '剑');
+        addMapping('劑', '剂');
+        addMapping('勝', '胜');
+        addMapping('區', '区');
+        addMapping('華', '华');
+        addMapping('萬', '万');
+        addMapping('與', '与');
+        addMapping('東', '东');
+        addMapping('絲', '丝');
+        addMapping('兩', '两');
+        addMapping('嚴', '严');
+        addMapping('麗', '丽');
+        addMapping('亂', '乱');
+        addMapping('為', '为');
+        addMapping('義', '义');
+        addMapping('烏', '乌');
+        addMapping('喬', '乔');
+        addMapping('喚', '唤');
+        addMapping('團', '团');
+        addMapping('園', '园');
+        addMapping('圖', '图');
+        addMapping('學', '学');
+        addMapping('寶', '宝');
+        addMapping('實', '实');
+        addMapping('寫', '写');
+        addMapping('將', '将');
+        addMapping('對', '对');
+        addMapping('屆', '届');
+        addMapping('屬', '属');
+        addMapping('嶺', '岭');
+        addMapping('島', '岛');
+        addMapping('峯', '峰');
+        addMapping('廣', '广');
+        addMapping('張', '张');
+        addMapping('彈', '弹');
+        addMapping('強', '强');
+        addMapping('當', '当');
+        addMapping('復', '复');
+        addMapping('戀', '恋');
+        addMapping('戶', '户');
+        addMapping('撫', '抚');
+        addMapping('擇', '择');
+        addMapping('擁', '拥');
+        addMapping('擇', '择');
+        addMapping('數', '数');
+        addMapping('樂', '乐');
+        addMapping('機', '机');
+        addMapping('檔', '档');
+        addMapping('檢', '检');
+        addMapping('歸', '归');
+        addMapping('歲', '岁');
+        addMapping('歷', '历');
+        addMapping('氣', '气');
+        addMapping('漢', '汉');
+        addMapping('濤', '涛');
+        addMapping('灣', '湾');
+        addMapping('無', '无');
+        addMapping('獎', '奖');
+        addMapping('產', '产');
+        addMapping('發', '发');
+        addMapping('盧', '卢');
+        addMapping('盡', '尽');
+        addMapping('盤', '盘');
+        addMapping('眾', '众');
+        addMapping('碼', '码');
+        addMapping('礦', '矿');
+        addMapping('禮', '礼');
+        addMapping('穩', '稳');
+        addMapping('竇', '窦');
+        addMapping('籤', '签');
+        addMapping('級', '级');
+        addMapping('紅', '红');
+        addMapping('細', '细');
+        addMapping('經', '经');
+        addMapping('網', '网');
+        addMapping('線', '线');
+        addMapping('練', '练');
+        addMapping('總', '总');
+        addMapping('編', '编');
+        addMapping('續', '续');
+        addMapping('藝', '艺');
+        addMapping('蘇', '苏');
+        addMapping('號', '号');
+        addMapping('葉', '叶');
+        addMapping('萬', '万');
+        addMapping('裝', '装');
+        addMapping('複', '复');
+        addMapping('視', '视');
+        addMapping('覺', '觉');
+        addMapping('覽', '览');
+        addMapping('訊', '讯');
+        addMapping('輯', '辑');
+        addMapping('選', '选');
+        addMapping('詞', '词');
+        addMapping('試', '试');
+        addMapping('詩', '诗');
+        addMapping('語', '语');
+        addMapping('說', '说');
+        addMapping('讀', '读');
+        addMapping('譜', '谱');
+        addMapping('豐', '丰');
+        addMapping('貝', '贝');
+        addMapping('資', '资');
+        addMapping('質', '质');
+        addMapping('購', '购');
+        addMapping('轉', '转');
+        addMapping('輸', '输');
+        addMapping('這', '这');
+        addMapping('進', '进');
+        addMapping('遠', '远');
+        addMapping('還', '还');
+        addMapping('邊', '边');
+        addMapping('鄧', '邓');
+        addMapping('鄭', '郑');
+        addMapping('醜', '丑');
+        addMapping('醫', '医');
+        addMapping('釋', '释');
+        addMapping('鐘', '钟');
+        addMapping('鋼', '钢');
+        addMapping('錄', '录');
+        addMapping('長', '长');
+        addMapping('陳', '陈');
+        addMapping('陸', '陆');
+        addMapping('陰', '阴');
+        addMapping('陽', '阳');
+        addMapping('雙', '双');
+        addMapping('雜', '杂');
+        addMapping('雲', '云');
+        addMapping('靈', '灵');
+        addMapping('韓', '韩');
+        addMapping('頁', '页');
+        addMapping('頒', '颁');
+        addMapping('類', '类');
+        addMapping('顏', '颜');
+        addMapping('風', '风');
+        addMapping('飛', '飞');
+        addMapping('馬', '马');
+        addMapping('驗', '验');
+        addMapping('體', '体');
 
         // 可以根据需要逐步补充更多常见映射
     }
@@ -72,19 +214,36 @@ public class TraditionalFilterService {
             return new ZhStats(0, 0);
         }
 
+        String simplified = toSimplified(text);
         int chineseCount = 0;
         int traditionalCount = 0;
+        int compareLength = Math.min(text.length(), simplified.length());
 
-        for (int i = 0; i < text.length(); i++) {
+        for (int i = 0; i < compareLength; i++) {
             char c = text.charAt(i);
             if (isCjk(c)) {
                 chineseCount++;
-                if (TRADITIONAL_SET.contains(c)) {
+                if (c != simplified.charAt(i)) {
                     traditionalCount++;
                 }
             }
         }
 
+        // 正常繁简转换通常长度一致。若长度不一致，退回到本地字典统计，避免漏算。
+        if (text.length() != simplified.length()) {
+            chineseCount = 0;
+            traditionalCount = 0;
+            for (int i = 0; i < text.length(); i++) {
+                char c = text.charAt(i);
+                if (isCjk(c)) {
+                    chineseCount++;
+                    if (TRADITIONAL_SET.contains(c)) {
+                        traditionalCount++;
+                    }
+                }
+            }
+        }
+
         return new ZhStats(chineseCount, traditionalCount);
     }
 
@@ -95,13 +254,17 @@ public class TraditionalFilterService {
         if (text == null || text.isEmpty()) {
             return text;
         }
-        StringBuilder sb = new StringBuilder(text.length());
-        for (int i = 0; i < text.length(); i++) {
-            char c = text.charAt(i);
-            Character mapped = TRAD_TO_SIMP_MAP.get(c);
-            sb.append(mapped != null ? mapped : c);
+        try {
+            return ZhConverterUtil.toSimple(text);
+        } catch (Exception e) {
+            StringBuilder sb = new StringBuilder(text.length());
+            for (int i = 0; i < text.length(); i++) {
+                char c = text.charAt(i);
+                Character mapped = TRAD_TO_SIMP_MAP.get(c);
+                sb.append(mapped != null ? mapped : c);
+            }
+            return sb.toString();
         }
-        return sb.toString();
     }
 
     /**
@@ -144,4 +307,3 @@ public class TraditionalFilterService {
         }
     }
 }
-
diff --git a/backend/src/main/java/com/music/service/ZhConvertService.java b/backend/src/main/java/com/music/service/ZhConvertService.java
index 43e7edc..b2cc5aa 100644
--- a/backend/src/main/java/com/music/service/ZhConvertService.java
+++ b/backend/src/main/java/com/music/service/ZhConvertService.java
@@ -1,5 +1,6 @@
 package com.music.service;
 
+import com.music.common.FileTransferUtils;
 import com.music.dto.ProgressMessage;
 import com.music.service.TraditionalFilterService.ZhStats;
 import org.jaudiotagger.audio.AudioFile;
@@ -318,13 +319,7 @@ public class ZhConvertService {
         
         // 移动源文件到目标位置（因为已经确认文件包含繁体，需要过滤出来处理）
         // 如果目标文件已存在，则覆盖（可能是重复处理的情况）
-        try {
-            // 尝试原子移动（在同一文件系统上更快更安全）
-            Files.move(srcFile, targetFile, StandardCopyOption.REPLACE_EXISTING, StandardCopyOption.ATOMIC_MOVE);
-        } catch (IOException e) {
-            // 如果原子移动失败（例如跨分区），回退到普通移动
-            Files.move(srcFile, targetFile, StandardCopyOption.REPLACE_EXISTING);
-        }
+        FileTransferUtils.moveWithFallback(srcFile, targetFile);
         return targetFile;
     }
 
@@ -344,6 +339,8 @@ public class ZhConvertService {
             pm.setProcessed(processed);
             pm.setSuccess(entries);
             pm.setFailed(failed);
+            pm.setTraditionalEntries(entries);
+            pm.setFailedFiles(failed);
             pm.setCurrentFile(currentFile);
             pm.setMessage(message);
             pm.setCompleted(completed);
@@ -354,4 +351,3 @@ public class ZhConvertService {
         }
     }
 }
-
diff --git a/backend/src/test/java/com/music/common/FileTransferUtilsTest.java b/backend/src/test/java/com/music/common/FileTransferUtilsTest.java
new file mode 100644
index 0000000..49b6380
--- /dev/null
+++ b/backend/src/test/java/com/music/common/FileTransferUtilsTest.java
@@ -0,0 +1,73 @@
+package com.music.common;
+
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.Assumptions;
+
+import java.nio.charset.StandardCharsets;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.nio.file.Paths;
+
+import static org.junit.jupiter.api.Assertions.assertArrayEquals;
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertTrue;
+
+class FileTransferUtilsTest {
+
+    @Test
+    void moveWithFallbackMovesFileAndRemovesSource() throws Exception {
+        Path tempDir = Files.createTempDirectory("file-transfer-test-");
+        Path source = tempDir.resolve("source.txt");
+        Path target = tempDir.resolve("nested/target.txt");
+
+        byte[] content = "hello-move".getBytes(StandardCharsets.UTF_8);
+        Files.write(source, content);
+
+        FileTransferUtils.moveWithFallback(source, target);
+
+        assertFalse(Files.exists(source));
+        assertTrue(Files.exists(target));
+        assertArrayEquals(content, Files.readAllBytes(target));
+    }
+
+    @Test
+    void moveWithFallbackOverwritesExistingTarget() throws Exception {
+        Path tempDir = Files.createTempDirectory("file-transfer-overwrite-");
+        Path source = tempDir.resolve("source.txt");
+        Path target = tempDir.resolve("target.txt");
+
+        Files.write(source, "new-data".getBytes(StandardCharsets.UTF_8));
+        Files.write(target, "old-data".getBytes(StandardCharsets.UTF_8));
+
+        FileTransferUtils.moveWithFallback(source, target);
+
+        assertFalse(Files.exists(source));
+        assertArrayEquals("new-data".getBytes(StandardCharsets.UTF_8), Files.readAllBytes(target));
+    }
+
+    @Test
+    void moveWithFallbackWorksAcrossFileStoresWhenAvailable() throws Exception {
+        Path shmRoot = Paths.get("/dev/shm");
+        Assumptions.assumeTrue(Files.exists(shmRoot) && Files.isDirectory(shmRoot),
+                "/dev/shm 不可用，跳过跨文件系统测试");
+
+        Path sourceDir = Files.createTempDirectory(shmRoot, "file-transfer-src-");
+        Path targetDir = Files.createTempDirectory("file-transfer-dst-");
+
+        Assumptions.assumeFalse(
+                Files.getFileStore(sourceDir).equals(Files.getFileStore(targetDir)),
+                "源和目标在同一文件系统，跳过跨文件系统测试"
+        );
+
+        Path source = sourceDir.resolve("cross.txt");
+        Path target = targetDir.resolve("cross/out.txt");
+        byte[] content = "cross-device-data".getBytes(StandardCharsets.UTF_8);
+        Files.write(source, content);
+
+        FileTransferUtils.moveWithFallback(source, target);
+
+        assertFalse(Files.exists(source));
+        assertTrue(Files.exists(target));
+        assertArrayEquals(content, Files.readAllBytes(target));
+    }
+}
diff --git a/backend/src/test/java/com/music/service/ConvertServiceInternalTest.java b/backend/src/test/java/com/music/service/ConvertServiceInternalTest.java
new file mode 100644
index 0000000..74fcf50
--- /dev/null
+++ b/backend/src/test/java/com/music/service/ConvertServiceInternalTest.java
@@ -0,0 +1,96 @@
+package com.music.service;
+
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.Assumptions;
+import org.springframework.messaging.simp.SimpMessagingTemplate;
+
+import java.lang.reflect.InvocationTargetException;
+import java.lang.reflect.Method;
+import java.nio.charset.StandardCharsets;
+import java.nio.file.Files;
+import java.nio.file.Path;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertThrows;
+import static org.junit.jupiter.api.Assertions.assertTrue;
+import static org.mockito.Mockito.mock;
+
+class ConvertServiceInternalTest {
+
+    @Test
+    void classifyConvertErrorHandlesInterrupted() throws Exception {
+        ConvertService service = new ConvertService(mock(SimpMessagingTemplate.class), new ProgressStore());
+
+        Method m = ConvertService.class.getDeclaredMethod("classifyConvertError", Exception.class);
+        m.setAccessible(true);
+
+        String reason = (String) m.invoke(service, new InterruptedException("interrupted"));
+        assertEquals("任务线程被中断", reason);
+    }
+
+    @Test
+    void classifyConvertErrorHandlesExitCode() throws Exception {
+        ConvertService service = new ConvertService(mock(SimpMessagingTemplate.class), new ProgressStore());
+
+        Method m = ConvertService.class.getDeclaredMethod("classifyConvertError", Exception.class);
+        m.setAccessible(true);
+
+        String reason = (String) m.invoke(service, new RuntimeException("ffmpeg 退出码: 1"));
+        assertTrue(reason.contains("ffmpeg 退出码"));
+        assertTrue(reason.contains("源文件损坏"));
+    }
+
+    @Test
+    void classifyConvertErrorKeepsTimeoutMessage() throws Exception {
+        ConvertService service = new ConvertService(mock(SimpMessagingTemplate.class), new ProgressStore());
+
+        Method m = ConvertService.class.getDeclaredMethod("classifyConvertError", Exception.class);
+        m.setAccessible(true);
+
+        String reason = (String) m.invoke(service, new RuntimeException("ffmpeg 转码超时（600s）"));
+        assertEquals("ffmpeg 转码超时（600s）", reason);
+    }
+
+    @Test
+    void checkFfmpegAvailableReturnsErrorWhenCommandMissing() throws Exception {
+        ConvertService service = new ConvertService(mock(SimpMessagingTemplate.class), new ProgressStore());
+        Method m = ConvertService.class.getDeclaredMethod("checkFfmpegAvailable");
+        m.setAccessible(true);
+
+        String previous = System.getProperty("mangtool.ffmpeg.bin");
+        try {
+            System.setProperty("mangtool.ffmpeg.bin", "ffmpeg_not_exists_for_test");
+            String error = (String) m.invoke(service);
+            assertTrue(error != null && error.contains("ffmpeg 不可用"));
+        } finally {
+            if (previous == null) {
+                System.clearProperty("mangtool.ffmpeg.bin");
+            } else {
+                System.setProperty("mangtool.ffmpeg.bin", previous);
+            }
+        }
+    }
+
+    @Test
+    void runFfmpegReturnsExitCodeErrorForInvalidInput() throws Exception {
+        ConvertService service = new ConvertService(mock(SimpMessagingTemplate.class), new ProgressStore());
+
+        Method check = ConvertService.class.getDeclaredMethod("checkFfmpegAvailable");
+        check.setAccessible(true);
+        String checkError = (String) check.invoke(service);
+        Assumptions.assumeTrue(checkError == null, "ffmpeg 不可用，跳过损坏文件测试");
+
+        Path tempDir = Files.createTempDirectory("convert-invalid-");
+        Path invalidInput = tempDir.resolve("bad.wav");
+        Path output = tempDir.resolve("out.flac");
+        Files.write(invalidInput, "not-audio".getBytes(StandardCharsets.UTF_8));
+
+        Method run = ConvertService.class.getDeclaredMethod("runFfmpeg", Path.class, Path.class);
+        run.setAccessible(true);
+
+        InvocationTargetException ex = assertThrows(InvocationTargetException.class,
+                () -> run.invoke(service, invalidInput, output));
+        Throwable target = ex.getTargetException();
+        assertTrue(target.getMessage().contains("ffmpeg 退出码"));
+    }
+}
diff --git a/backend/src/test/java/com/music/service/DedupServiceInternalTest.java b/backend/src/test/java/com/music/service/DedupServiceInternalTest.java
new file mode 100644
index 0000000..289ede1
--- /dev/null
+++ b/backend/src/test/java/com/music/service/DedupServiceInternalTest.java
@@ -0,0 +1,98 @@
+package com.music.service;
+
+import org.junit.jupiter.api.Test;
+import org.springframework.messaging.simp.SimpMessagingTemplate;
+
+import java.lang.reflect.Method;
+import java.nio.charset.StandardCharsets;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.util.ArrayList;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Set;
+import java.util.concurrent.atomic.AtomicInteger;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertTrue;
+import static org.mockito.Mockito.mock;
+
+class DedupServiceInternalTest {
+
+    @Test
+    @SuppressWarnings("unchecked")
+    void filterProcessableCandidatesSkipsProcessedAndMissingFiles() throws Exception {
+        DedupService service = new DedupService(mock(SimpMessagingTemplate.class), new ProgressStore());
+
+        Path tempDir = Files.createTempDirectory("dedup-filter-");
+        Path fileA = tempDir.resolve("a.mp3");
+        Path fileB = tempDir.resolve("b.mp3");
+        Path missing = tempDir.resolve("missing.mp3");
+
+        Files.write(fileA, "a".getBytes(StandardCharsets.UTF_8));
+        Files.write(fileB, "b".getBytes(StandardCharsets.UTF_8));
+
+        Set<Path> processed = new HashSet<>();
+        processed.add(fileB.toAbsolutePath().normalize());
+
+        Method m = DedupService.class.getDeclaredMethod("filterProcessableCandidates", List.class, Set.class);
+        m.setAccessible(true);
+
+        List<Path> group = new ArrayList<>();
+        group.add(fileA);
+        group.add(fileB);
+        group.add(missing);
+
+        List<Path> result = (List<Path>) m.invoke(service, group, processed);
+
+        assertEquals(1, result.size());
+        assertEquals(fileA, result.get(0));
+    }
+
+    @Test
+    @SuppressWarnings("unchecked")
+    void handleDuplicatesAccumulatesMovedCountAndMarksProcessed() throws Exception {
+        DedupService service = new DedupService(mock(SimpMessagingTemplate.class), new ProgressStore());
+
+        Path tempDir = Files.createTempDirectory("dedup-handle-");
+        Path trashDir = tempDir.resolve("trash");
+        Path keep = tempDir.resolve("keep.mp3");
+        Path dup = tempDir.resolve("dup.mp3");
+
+        Files.createDirectories(trashDir);
+        Files.write(keep, "keep".getBytes(StandardCharsets.UTF_8));
+        Files.write(dup, "dup".getBytes(StandardCharsets.UTF_8));
+
+        Method m = DedupService.class.getDeclaredMethod(
+                "handleDuplicates",
+                List.class,
+                Path.class,
+                Path.class,
+                String.class,
+                String.class,
+                int.class,
+                AtomicInteger.class,
+                AtomicInteger.class,
+                AtomicInteger.class,
+                AtomicInteger.class,
+                Set.class
+        );
+        m.setAccessible(true);
+
+        List<Path> duplicates = new ArrayList<>();
+        duplicates.add(dup);
+
+        AtomicInteger scanned = new AtomicInteger(10);
+        AtomicInteger groups = new AtomicInteger(2);
+        AtomicInteger moved = new AtomicInteger(5);
+        AtomicInteger failed = new AtomicInteger(0);
+        Set<Path> processed = new HashSet<>();
+
+        m.invoke(service, duplicates, keep, trashDir, "copy", "task-1", 20,
+                scanned, groups, moved, failed, processed);
+
+        assertEquals(6, moved.get());
+        assertEquals(0, failed.get());
+        assertTrue(processed.contains(dup.toAbsolutePath().normalize()));
+    }
+}
diff --git a/backend/src/test/java/com/music/service/LibraryMergeServiceInternalTest.java b/backend/src/test/java/com/music/service/LibraryMergeServiceInternalTest.java
new file mode 100644
index 0000000..cd9c42e
--- /dev/null
+++ b/backend/src/test/java/com/music/service/LibraryMergeServiceInternalTest.java
@@ -0,0 +1,37 @@
+package com.music.service;
+
+import org.junit.jupiter.api.Test;
+import org.springframework.messaging.simp.SimpMessagingTemplate;
+
+import java.lang.reflect.Method;
+import java.nio.file.Files;
+import java.nio.file.Path;
+
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertTrue;
+import static org.mockito.Mockito.mock;
+
+class LibraryMergeServiceInternalTest {
+
+    @Test
+    void isExcludedSystemDirectoryRecognizesManualFixAndReports() throws Exception {
+        LibraryMergeService service = new LibraryMergeService(
+                mock(SimpMessagingTemplate.class),
+                new ProgressStore()
+        );
+
+        Path root = Files.createTempDirectory("merge-root-");
+        Path manualDir = root.resolve("_Manual_Fix_Required_").resolve("Missing_Title");
+        Path reportsDir = root.resolve("_Reports");
+        Path normalDir = root.resolve("A").resolve("Artist");
+
+        Method method = LibraryMergeService.class.getDeclaredMethod(
+                "isExcludedSystemDirectory", Path.class, Path.class);
+        method.setAccessible(true);
+
+        assertTrue((Boolean) method.invoke(service, root, manualDir));
+        assertTrue((Boolean) method.invoke(service, root, reportsDir));
+        assertFalse((Boolean) method.invoke(service, root, normalDir));
+        assertFalse((Boolean) method.invoke(service, root, root));
+    }
+}
diff --git a/backend/src/test/java/com/music/service/ProgressMessageMappingTest.java b/backend/src/test/java/com/music/service/ProgressMessageMappingTest.java
new file mode 100644
index 0000000..16b54cc
--- /dev/null
+++ b/backend/src/test/java/com/music/service/ProgressMessageMappingTest.java
@@ -0,0 +1,79 @@
+package com.music.service;
+
+import com.music.dto.ProgressMessage;
+import org.junit.jupiter.api.Test;
+import org.springframework.messaging.simp.SimpMessagingTemplate;
+
+import java.lang.reflect.Method;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.mockito.Mockito.mock;
+
+class ProgressMessageMappingTest {
+
+    @Test
+    void dedupProgressContainsDedicatedFields() throws Exception {
+        ProgressStore store = new ProgressStore();
+        DedupService service = new DedupService(mock(SimpMessagingTemplate.class), store);
+
+        Method m = DedupService.class.getDeclaredMethod(
+                "sendProgress", String.class, int.class, int.class, int.class, int.class, String.class, boolean.class);
+        m.setAccessible(true);
+        m.invoke(service, "t-dedup", 100, 50, 3, 8, "msg", false);
+
+        ProgressMessage pm = store.get("t-dedup");
+        assertEquals(3, pm.getDuplicateGroups().intValue());
+        assertEquals(8, pm.getMovedFiles().intValue());
+    }
+
+    @Test
+    void organizeProgressContainsDedicatedFields() throws Exception {
+        ProgressStore store = new ProgressStore();
+        OrganizeService service = new OrganizeService(mock(SimpMessagingTemplate.class), store);
+
+        Method m = OrganizeService.class.getDeclaredMethod(
+                "sendProgress", String.class, int.class, int.class, int.class, int.class,
+                String.class, String.class, boolean.class);
+        m.setAccessible(true);
+        m.invoke(service, "t-organize", 100, 80, 70, 10, "f.mp3", "msg", false);
+
+        ProgressMessage pm = store.get("t-organize");
+        assertEquals(70, pm.getOrganizedFiles().intValue());
+        assertEquals(10, pm.getManualFixFiles().intValue());
+    }
+
+    @Test
+    void zhconvertProgressContainsDedicatedFields() throws Exception {
+        ProgressStore store = new ProgressStore();
+        ZhConvertService service = new ZhConvertService(
+                mock(SimpMessagingTemplate.class), store, new TraditionalFilterService());
+
+        Method m = ZhConvertService.class.getDeclaredMethod(
+                "sendProgress", String.class, int.class, int.class, int.class, int.class,
+                String.class, String.class, boolean.class);
+        m.setAccessible(true);
+        m.invoke(service, "t-zh", 10, 5, 12, 1, "f.mp3", "msg", false);
+
+        ProgressMessage pm = store.get("t-zh");
+        assertEquals(12, pm.getTraditionalEntries().intValue());
+        assertEquals(1, pm.getFailedFiles().intValue());
+    }
+
+    @Test
+    void mergeProgressContainsDedicatedFields() throws Exception {
+        ProgressStore store = new ProgressStore();
+        LibraryMergeService service = new LibraryMergeService(mock(SimpMessagingTemplate.class), store);
+
+        Method m = LibraryMergeService.class.getDeclaredMethod(
+                "sendProgress", String.class, int.class, int.class, int.class, int.class,
+                int.class, int.class, String.class, String.class, boolean.class);
+        m.setAccessible(true);
+        m.invoke(service, "t-merge", 100, 30, 4, 28, 3, 2, "f.mp3", "msg", false);
+
+        ProgressMessage pm = store.get("t-merge");
+        assertEquals(4, pm.getAlbumsMerged().intValue());
+        assertEquals(28, pm.getTracksMerged().intValue());
+        assertEquals(3, pm.getUpgradedFiles().intValue());
+        assertEquals(2, pm.getSkippedFiles().intValue());
+    }
+}
diff --git a/backend/src/test/java/com/music/service/ProgressStoreTest.java b/backend/src/test/java/com/music/service/ProgressStoreTest.java
new file mode 100644
index 0000000..047c2aa
--- /dev/null
+++ b/backend/src/test/java/com/music/service/ProgressStoreTest.java
@@ -0,0 +1,54 @@
+package com.music.service;
+
+import com.music.dto.ProgressMessage;
+import org.junit.jupiter.api.Test;
+
+import java.lang.reflect.Constructor;
+import java.lang.reflect.Field;
+import java.util.Map;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertNull;
+
+class ProgressStoreTest {
+
+    @Test
+    void putAndGetReturnsLatestProgress() {
+        ProgressStore store = new ProgressStore();
+        ProgressMessage pm = new ProgressMessage();
+        pm.setTaskId("task-1");
+        pm.setMessage("running");
+
+        store.put(pm);
+
+        ProgressMessage fetched = store.get("task-1");
+        assertEquals("running", fetched.getMessage());
+    }
+
+    @Test
+    @SuppressWarnings("unchecked")
+    void getRemovesExpiredProgress() throws Exception {
+        ProgressStore store = new ProgressStore();
+
+        ProgressMessage pm = new ProgressMessage();
+        pm.setTaskId("expired-task");
+        pm.setMessage("old");
+
+        Field latestField = ProgressStore.class.getDeclaredField("latest");
+        latestField.setAccessible(true);
+        Map<String, Object> latest = (Map<String, Object>) latestField.get(store);
+
+        Class<?> storedClass = Class.forName("com.music.service.ProgressStore$StoredProgress");
+        Constructor<?> constructor = storedClass.getDeclaredConstructor(ProgressMessage.class, long.class);
+        constructor.setAccessible(true);
+
+        long oldTimestamp = System.currentTimeMillis() - (31L * 60L * 1000L);
+        Object expired = constructor.newInstance(pm, oldTimestamp);
+        latest.put("expired-task", expired);
+
+        ProgressMessage fetched = store.get("expired-task");
+        assertNull(fetched);
+        assertFalse(latest.containsKey("expired-task"));
+    }
+}
diff --git a/backend/src/test/java/com/music/service/TraditionalFilterServiceTest.java b/backend/src/test/java/com/music/service/TraditionalFilterServiceTest.java
new file mode 100644
index 0000000..40223b0
--- /dev/null
+++ b/backend/src/test/java/com/music/service/TraditionalFilterServiceTest.java
@@ -0,0 +1,40 @@
+package com.music.service;
+
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertTrue;
+
+class TraditionalFilterServiceTest {
+
+    @Test
+    void toSimplifiedConvertsCommonMusicMetadata() {
+        TraditionalFilterService service = new TraditionalFilterService();
+
+        String converted = service.toSimplified("張學友 經典專輯 精選 愛與夢");
+
+        assertEquals("张学友 经典专辑 精选 爱与梦", converted);
+    }
+
+    @Test
+    void analyzeReturnsExpectedTraditionalRatio() {
+        TraditionalFilterService service = new TraditionalFilterService();
+
+        TraditionalFilterService.ZhStats stats = service.analyze("張學友abc");
+
+        assertEquals(3, stats.getChineseCount());
+        assertEquals(2, stats.getTraditionalCount());
+        assertTrue(stats.getRatio() > 0.6 && stats.getRatio() < 0.7);
+    }
+
+    @Test
+    void analyzeDetectsTraditionalCharsCoveredByOpencc() {
+        TraditionalFilterService service = new TraditionalFilterService();
+
+        TraditionalFilterService.ZhStats stats = service.analyze("愛與夢");
+
+        assertEquals(3, stats.getChineseCount());
+        assertEquals(3, stats.getTraditionalCount());
+        assertEquals(1.0, stats.getRatio());
+    }
+}
diff --git a/backend/src/test/java/com/music/service/ZhConvertServiceInternalTest.java b/backend/src/test/java/com/music/service/ZhConvertServiceInternalTest.java
new file mode 100644
index 0000000..4916d3e
--- /dev/null
+++ b/backend/src/test/java/com/music/service/ZhConvertServiceInternalTest.java
@@ -0,0 +1,66 @@
+package com.music.service;
+
+import org.junit.jupiter.api.Test;
+import org.springframework.messaging.simp.SimpMessagingTemplate;
+
+import java.lang.reflect.Method;
+import java.nio.charset.StandardCharsets;
+import java.nio.file.Files;
+import java.nio.file.Path;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertTrue;
+import static org.mockito.Mockito.mock;
+
+class ZhConvertServiceInternalTest {
+
+    @Test
+    void resolveTargetFileForExecuteKeepsSourceWhenPreview() throws Exception {
+        ZhConvertService service = new ZhConvertService(
+                mock(SimpMessagingTemplate.class),
+                new ProgressStore(),
+                new TraditionalFilterService()
+        );
+
+        Path scanDir = Files.createTempDirectory("zh-scan-");
+        Path srcFile = scanDir.resolve("a/song.mp3");
+        Files.createDirectories(srcFile.getParent());
+        Files.write(srcFile, "abc".getBytes(StandardCharsets.UTF_8));
+
+        Method m = ZhConvertService.class.getDeclaredMethod(
+                "resolveTargetFileForExecute", Path.class, Path.class, Path.class, boolean.class);
+        m.setAccessible(true);
+
+        Path result = (Path) m.invoke(service, srcFile, scanDir, null, false);
+        assertEquals(srcFile, result);
+        assertTrue(Files.exists(srcFile));
+    }
+
+    @Test
+    void resolveTargetFileForExecuteMovesFileToOutputWhenExecute() throws Exception {
+        ZhConvertService service = new ZhConvertService(
+                mock(SimpMessagingTemplate.class),
+                new ProgressStore(),
+                new TraditionalFilterService()
+        );
+
+        Path scanDir = Files.createTempDirectory("zh-scan-exec-");
+        Path outDir = Files.createTempDirectory("zh-out-exec-");
+        Path srcFile = scanDir.resolve("artist/song.mp3");
+        Files.createDirectories(srcFile.getParent());
+        byte[] content = "xyz".getBytes(StandardCharsets.UTF_8);
+        Files.write(srcFile, content);
+
+        Method m = ZhConvertService.class.getDeclaredMethod(
+                "resolveTargetFileForExecute", Path.class, Path.class, Path.class, boolean.class);
+        m.setAccessible(true);
+
+        Path result = (Path) m.invoke(service, srcFile, scanDir, outDir, true);
+
+        assertFalse(Files.exists(srcFile));
+        assertTrue(Files.exists(result));
+        assertEquals(outDir.resolve("artist/song.mp3"), result);
+        assertEquals("xyz", new String(Files.readAllBytes(result), StandardCharsets.UTF_8));
+    }
+}
diff --git a/frontend/package-lock.json b/frontend/package-lock.json
index 7c69130..96a9229 100644
--- a/frontend/package-lock.json
+++ b/frontend/package-lock.json
@@ -885,7 +885,6 @@
       "resolved": "https://registry.npmjs.org/@types/lodash-es/-/lodash-es-4.17.12.tgz",
       "integrity": "sha512-0NgftHUcV4v34VhXm8QBSftKVXtbkBG3ViCjs6+eJ5a6y6Mi/jiFGPc1sC7QK+9BFhWrURE3EOggmWaSxL9OzQ==",
       "license": "MIT",
-      "peer": true,
       "dependencies": {
         "@types/lodash": "*"
       }
@@ -1571,15 +1570,13 @@
       "version": "4.17.23",
       "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.23.tgz",
       "integrity": "sha512-LgVTMpQtIopCi79SJeDiP0TfWi5CNEc/L/aRdTh3yIvmZXTnheWpKjSZhnvMl8iXbC1tFg9gdHHDMLoV7CnG+w==",
-      "license": "MIT",
-      "peer": true
+      "license": "MIT"
     },
     "node_modules/lodash-es": {
       "version": "4.17.23",
       "resolved": "https://registry.npmjs.org/lodash-es/-/lodash-es-4.17.23.tgz",
       "integrity": "sha512-kVI48u3PZr38HdYz98UmfPnXl2DXrpdctLrFLCd3kOx1xUkOmpFPx7gCWWM5MPkL/fD8zb+Ph0QzjGFs4+hHWg==",
-      "license": "MIT",
-      "peer": true
+      "license": "MIT"
     },
     "node_modules/lodash-unified": {
       "version": "1.0.3",
@@ -1909,7 +1906,6 @@
       "integrity": "sha512-o5a9xKjbtuhY6Bi5S3+HvbRERmouabWbyUcpXXUA1u+GNUKoROi9byOJ8M0nHbHYHkYICiMlqxkg1KkYmm25Sw==",
       "dev": true,
       "license": "MIT",
-      "peer": true,
       "dependencies": {
         "esbuild": "^0.21.3",
         "postcss": "^8.4.43",
@@ -1969,7 +1965,6 @@
       "resolved": "https://registry.npmjs.org/vue/-/vue-3.5.27.tgz",
       "integrity": "sha512-aJ/UtoEyFySPBGarREmN4z6qNKpbEguYHMmXSiOGk69czc+zhs0NF6tEFrY8TZKAl8N/LYAkd4JHVd5E/AsSmw==",
       "license": "MIT",
-      "peer": true,
       "dependencies": {
         "@vue/compiler-dom": "3.5.27",
         "@vue/compiler-sfc": "3.5.27",
diff --git a/frontend/src/App.vue b/frontend/src/App.vue
index d17781a..20e1746 100644
--- a/frontend/src/App.vue
+++ b/frontend/src/App.vue
@@ -10,13 +10,13 @@
         class="app-menu"
         @select="handleSelect"
       >
-        <el-menu-item index="aggregate">01 音频文件汇聚</el-menu-item>
-        <el-menu-item index="convert">02 音频格式智能处理</el-menu-item>
-        <el-menu-item index="dedup">03 音乐去重</el-menu-item>
-        <el-menu-item index="zhconvert">04 元数据繁简转换</el-menu-item>
-        <el-menu-item index="organize">05 音乐整理</el-menu-item>
-        <el-menu-item index="merge">06 整理入库</el-menu-item>
-        <el-menu-item index="settings">全局设置</el-menu-item>
+        <el-menu-item
+          v-for="tab in tabs"
+          :key="tab.key"
+          :index="tab.key"
+        >
+          {{ tab.menuLabel }}
+        </el-menu-item>
       </el-menu>
     </el-aside>
 
@@ -26,6 +26,10 @@
           <h1>{{ currentTitle }}</h1>
           <p>{{ currentSubtitle }}</p>
         </div>
+        <div class="app-header-meta">
+          <span class="app-header-index">{{ currentTab.badge }}</span>
+          <span class="app-header-helper">执行面板</span>
+        </div>
       </el-header>
       <el-main class="app-main">
         <component :is="currentComponent" />
@@ -35,14 +39,16 @@
 </template>
 
 <script setup lang="ts">
-import { computed, ref } from 'vue';
-import AggregateTab from './components/AggregateTab.vue';
-import ConvertTab from './components/ConvertTab.vue';
-import DedupTab from './components/DedupTab.vue';
-import TraditionalFilterTab from './components/TraditionalFilterTab.vue';
-import RenameTab from './components/RenameTab.vue';
-import MergeTab from './components/MergeTab.vue';
-import SettingsTab from './components/SettingsTab.vue';
+import { computed, defineAsyncComponent, ref } from 'vue';
+import type { Component } from 'vue';
+
+const AggregateTab = defineAsyncComponent(() => import('./components/AggregateTab.vue'));
+const ConvertTab = defineAsyncComponent(() => import('./components/ConvertTab.vue'));
+const DedupTab = defineAsyncComponent(() => import('./components/DedupTab.vue'));
+const TraditionalFilterTab = defineAsyncComponent(() => import('./components/TraditionalFilterTab.vue'));
+const RenameTab = defineAsyncComponent(() => import('./components/RenameTab.vue'));
+const MergeTab = defineAsyncComponent(() => import('./components/MergeTab.vue'));
+const SettingsTab = defineAsyncComponent(() => import('./components/SettingsTab.vue'));
 
 type TabKey =
   | 'aggregate'
@@ -53,70 +59,85 @@ type TabKey =
   | 'merge'
   | 'settings';
 
+interface TabDefinition {
+  key: TabKey;
+  menuLabel: string;
+  badge: string;
+  title: string;
+  subtitle: string;
+  component: Component;
+}
+
+const tabs: TabDefinition[] = [
+  {
+    key: 'aggregate',
+    menuLabel: '01 音频文件汇聚',
+    badge: 'STEP 01',
+    title: '01 · 音频文件汇聚',
+    subtitle: '将分散音频扁平化汇聚，为后续处理统一入口。',
+    component: AggregateTab
+  },
+  {
+    key: 'convert',
+    menuLabel: '02 音频格式智能处理',
+    badge: 'STEP 02',
+    title: '02 · 音频格式智能处理',
+    subtitle: '智能识别无损/有损格式并统一转码为 FLAC。',
+    component: ConvertTab
+  },
+  {
+    key: 'dedup',
+    menuLabel: '03 音乐去重',
+    badge: 'STEP 03',
+    title: '03 · 音乐去重',
+    subtitle: '基于 MD5 与元数据的双重策略进行音乐去重。',
+    component: DedupTab
+  },
+  {
+    key: 'zhconvert',
+    menuLabel: '04 元数据繁简转换',
+    badge: 'STEP 04',
+    title: '04 · 音乐元数据繁体转简体',
+    subtitle: '批量检测并转换标签中的繁体中文。',
+    component: TraditionalFilterTab
+  },
+  {
+    key: 'organize',
+    menuLabel: '05 音乐整理',
+    badge: 'STEP 05',
+    title: '05 · 音乐整理',
+    subtitle: '按 Navidrome 规范重命名与整理目录结构。',
+    component: RenameTab
+  },
+  {
+    key: 'merge',
+    menuLabel: '06 整理入库',
+    badge: 'STEP 06',
+    title: '06 · 整理入库',
+    subtitle: '将整理好的 staging 目录智能合并入主库。',
+    component: MergeTab
+  },
+  {
+    key: 'settings',
+    menuLabel: '全局设置',
+    badge: 'CONFIG',
+    title: '全局配置与路径设置',
+    subtitle: '配置全局工作目录与各阶段标准子目录。',
+    component: SettingsTab
+  }
+];
+
+const tabMap = tabs.reduce((acc, tab) => {
+  acc[tab.key] = tab;
+  return acc;
+}, {} as Record<TabKey, TabDefinition>);
+
 const activeKey = ref<TabKey>('aggregate');
 
-const currentComponent = computed(() => {
-  switch (activeKey.value) {
-    case 'aggregate':
-      return AggregateTab;
-    case 'convert':
-      return ConvertTab;
-    case 'dedup':
-      return DedupTab;
-    case 'zhconvert':
-      return TraditionalFilterTab;
-    case 'organize':
-      return RenameTab;
-    case 'merge':
-      return MergeTab;
-    case 'settings':
-      return SettingsTab;
-    default:
-      return AggregateTab;
-  }
-});
-
-const currentTitle = computed(() => {
-  switch (activeKey.value) {
-    case 'aggregate':
-      return '01 · 音频文件汇聚';
-    case 'convert':
-      return '02 · 音频格式智能处理';
-    case 'dedup':
-      return '03 · 音乐去重';
-    case 'zhconvert':
-      return '04 · 音乐元数据繁体转简体';
-    case 'organize':
-      return '05 · 音乐整理';
-    case 'merge':
-      return '06 · 整理入库';
-    case 'settings':
-      return '全局配置与路径设置';
-    default:
-      return '';
-  }
-});
-
-const currentSubtitle = computed(() => {
-  switch (activeKey.value) {
-    case 'aggregate':
-      return '将分散音频扁平化汇聚，为后续处理统一入口。';
-    case 'convert':
-      return '智能识别无损/有损格式并统一转码为 FLAC。';
-    case 'dedup':
-      return '基于 MD5 与元数据的双重策略进行音乐去重。';
-    case 'zhconvert':
-      return '批量检测并转换标签中的繁体中文。';
-    case 'organize':
-      return '按 Navidrome 规范重命名与整理目录结构。';
-    case 'merge':
-      return '将整理好的 staging 目录智能合并入主库。';
-    case 'settings':
-      return '配置全局工作目录与各阶段标准子目录。';
-    default:
-      return '';
-  }
-});
+const currentTab = computed(() => tabMap[activeKey.value] || tabs[0]);
+const currentComponent = computed(() => currentTab.value.component);
+const currentTitle = computed(() => currentTab.value.title);
+const currentSubtitle = computed(() => currentTab.value.subtitle);
 
 function handleSelect(key: string) {
   activeKey.value = key as TabKey;
@@ -125,59 +146,157 @@ function handleSelect(key: string) {
 
 <style scoped>
 .app-root {
-  height: 100vh;
+  min-height: 100vh;
+  padding: 18px;
+  background:
+    radial-gradient(circle at 12% 12%, rgba(15, 118, 110, 0.13), transparent 45%),
+    radial-gradient(circle at 78% 4%, rgba(14, 116, 144, 0.16), transparent 40%),
+    linear-gradient(145deg, #f8fbff 0%, #f3f7fd 42%, #eef5fa 100%);
 }
 
 .app-aside {
-  border-right: 1px solid #e5e7eb;
-  padding: 16px 0;
+  margin-right: 14px;
+  border: 1px solid rgba(148, 163, 184, 0.28);
+  border-radius: 20px;
+  padding: 18px 12px;
+  background: rgba(255, 255, 255, 0.78);
+  backdrop-filter: blur(12px);
+  box-shadow:
+    0 20px 45px -30px rgba(15, 23, 42, 0.45),
+    inset 0 1px 0 rgba(255, 255, 255, 0.6);
   display: flex;
   flex-direction: column;
 }
 
 .app-logo {
-  padding: 0 20px 12px;
-  border-bottom: 1px solid #e5e7eb;
-  margin-bottom: 12px;
+  padding: 2px 14px 16px;
+  border-bottom: 1px solid rgba(148, 163, 184, 0.26);
+  margin-bottom: 14px;
 }
 
 .app-logo-title {
   display: block;
-  font-weight: 600;
-  font-size: 18px;
+  font-size: 24px;
+  font-weight: 700;
+  letter-spacing: 0.4px;
+  color: #0f172a;
 }
 
 .app-logo-sub {
   display: block;
-  font-size: 12px;
-  color: #6b7280;
+  margin-top: 4px;
+  font-size: 13px;
+  letter-spacing: 1.3px;
+  text-transform: uppercase;
+  color: #475569;
 }
 
 .app-menu {
+  flex: 1;
   border-right: none;
 }
 
+.app-menu :deep(.el-menu-item) {
+  height: 44px;
+  line-height: 44px;
+  border-radius: 11px;
+  margin: 2px 6px;
+  color: #334155;
+  transition: all 0.2s ease;
+}
+
+.app-menu :deep(.el-menu-item:hover) {
+  color: #0f172a;
+  background: rgba(15, 118, 110, 0.08);
+}
+
+.app-menu :deep(.el-menu-item.is-active) {
+  color: #0f766e;
+  font-weight: 600;
+  background: linear-gradient(95deg, rgba(15, 118, 110, 0.14), rgba(14, 116, 144, 0.07));
+}
+
 .app-header {
   display: flex;
   align-items: center;
-  border-bottom: 1px solid #e5e7eb;
+  justify-content: space-between;
+  min-height: 88px;
+  padding: 0 26px;
+  border: 1px solid rgba(148, 163, 184, 0.22);
+  border-radius: 18px;
+  background: rgba(255, 255, 255, 0.88);
+  backdrop-filter: blur(10px);
+  box-shadow: 0 16px 35px -30px rgba(15, 23, 42, 0.45);
 }
 
 .app-header-title h1 {
   margin: 0;
-  font-size: 18px;
-  font-weight: 600;
+  font-size: 22px;
+  font-weight: 700;
+  color: #0f172a;
 }
 
 .app-header-title p {
-  margin: 4px 0 0;
+  margin: 6px 0 0;
+  font-size: 14px;
+  color: #475569;
+}
+
+.app-header-meta {
+  display: flex;
+  align-items: center;
+  gap: 10px;
+}
+
+.app-header-index {
+  display: inline-flex;
+  align-items: center;
+  justify-content: center;
+  min-height: 30px;
+  padding: 0 12px;
+  border-radius: 999px;
+  font-size: 12px;
+  font-weight: 700;
+  letter-spacing: 0.8px;
+  color: #0b5f59;
+  background: rgba(15, 118, 110, 0.12);
+}
+
+.app-header-helper {
   font-size: 13px;
-  color: #6b7280;
+  color: #64748b;
 }
 
 .app-main {
-  padding: 16px;
-  background: #f3f4f6;
+  margin-top: 14px;
+  border-radius: 18px;
+  padding: 20px;
+  background: rgba(255, 255, 255, 0.66);
+  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.5);
+}
+
+@media (max-width: 992px) {
+  .app-root {
+    padding: 12px;
+  }
+
+  .app-aside {
+    width: 100% !important;
+    margin-right: 0;
+    margin-bottom: 12px;
+  }
+
+  .app-header {
+    padding: 16px;
+    min-height: auto;
+    flex-direction: column;
+    align-items: flex-start;
+    gap: 10px;
+  }
+
+  .app-main {
+    margin-top: 10px;
+    padding: 14px;
+  }
 }
 </style>
-
diff --git a/frontend/src/api/progress.ts b/frontend/src/api/progress.ts
index 99b86fd..3a8f3ef 100644
--- a/frontend/src/api/progress.ts
+++ b/frontend/src/api/progress.ts
@@ -10,9 +10,18 @@ export interface ProgressMessage {
   currentFile: string;
   message: string;
   completed: boolean;
+  duplicateGroups?: number;
+  movedFiles?: number;
+  organizedFiles?: number;
+  manualFixFiles?: number;
+  traditionalEntries?: number;
+  failedFiles?: number;
+  albumsMerged?: number;
+  tracksMerged?: number;
+  upgradedFiles?: number;
+  skippedFiles?: number;
 }
 
 export function getProgress(taskId: string): Promise<ProgressMessage | null> {
   return request.get(`/api/progress/${taskId}`);
 }
-
diff --git a/frontend/src/components/AggregateTab.vue b/frontend/src/components/AggregateTab.vue
index e623444..5f9d799 100644
--- a/frontend/src/components/AggregateTab.vue
+++ b/frontend/src/components/AggregateTab.vue
@@ -5,10 +5,7 @@
       <el-col :xs="24" :sm="24" :md="12" :lg="10">
         <el-card class="config-card" shadow="hover">
           <template #header>
-            <div class="card-header">
-              <el-icon class="header-icon"><Setting /></el-icon>
-              <span class="card-title">任务配置</span>
-            </div>
+            <task-card-header :icon="Setting" title="任务配置" />
           </template>
 
           <el-form :model="form" label-width="100px" label-position="left">
@@ -77,40 +74,7 @@
       <el-col :xs="24" :sm="24" :md="12" :lg="14">
         <el-card class="progress-card" shadow="hover">
           <template #header>
-            <div class="card-header">
-              <el-icon class="header-icon"><DataLine /></el-icon>
-              <span class="card-title">任务进度</span>
-              <el-tag
-                v-if="progress.taskId && progress.completed"
-                type="info"
-                size="small"
-                effect="plain"
-                class="connection-tag"
-              >
-                <el-icon class="connection-icon"><CircleCheck /></el-icon>
-                <span class="connection-text">已结束</span>
-              </el-tag>
-              <el-tag
-                v-else-if="progress.taskId && wsConnected"
-                type="success"
-                size="small"
-                effect="plain"
-                class="connection-tag"
-              >
-                <el-icon class="connection-icon"><Connection /></el-icon>
-                <span class="connection-text">已连接</span>
-              </el-tag>
-              <el-tag
-                v-else-if="progress.taskId && !wsConnected"
-                type="warning"
-                size="small"
-                effect="plain"
-                class="connection-tag"
-              >
-                <el-icon class="connection-icon"><Loading /></el-icon>
-                <span class="connection-text">连接中</span>
-              </el-tag>
-            </div>
+            <task-card-header :icon="DataLine" title="任务进度" :status="connectionStatus" />
           </template>
 
           <div v-if="!progress.taskId" class="empty-state">
@@ -120,24 +84,7 @@
 
           <div v-else class="progress-content">
             <!-- 统计信息 -->
-            <div class="stats-grid">
-              <div class="stat-item">
-                <div class="stat-label">总数</div>
-                <div class="stat-value">{{ progress.total }}</div>
-              </div>
-              <div class="stat-item">
-                <div class="stat-label">已处理</div>
-                <div class="stat-value success">{{ progress.processed }}</div>
-              </div>
-              <div class="stat-item">
-                <div class="stat-label">成功</div>
-                <div class="stat-value success">{{ progress.success }}</div>
-              </div>
-              <div class="stat-item">
-                <div class="stat-label">失败</div>
-                <div class="stat-value failed">{{ progress.failed }}</div>
-              </div>
-            </div>
+            <task-stats-grid :items="progressStats" />
 
             <!-- 进度条 -->
             <div class="progress-section">
@@ -187,16 +134,14 @@ import {
   VideoPlay,
   Refresh,
   DataLine,
-  Connection,
-  CircleCheck,
-  Loading,
-  Warning,
   Document
 } from '@element-plus/icons-vue';
 import { startAggregate } from '../api/aggregate';
 import { getProgress } from '../api/progress';
 import { useWebSocket, type ProgressMessage } from '../composables/useWebSocket';
 import { getConfig } from '../api/config';
+import TaskCardHeader, { type CardHeaderStatus } from './common/TaskCardHeader.vue';
+import TaskStatsGrid, { type StatItem } from './common/TaskStatsGrid.vue';
 
 interface Progress {
   taskId: string | null;
@@ -238,6 +183,23 @@ const percentage = computed(() => {
   return Math.round((progress.processed / progress.total) * 100);
 });
 
+const connectionStatus = computed<CardHeaderStatus | null>(() => {
+  if (!progress.taskId) {
+    return null;
+  }
+  if (progress.completed) {
+    return 'completed';
+  }
+  return wsConnected.value ? 'connected' : 'connecting';
+});
+
+const progressStats = computed<StatItem[]>(() => [
+  { label: '总数', value: progress.total },
+  { label: '已处理', value: progress.processed, tone: 'success' },
+  { label: '成功', value: progress.success, tone: 'success' },
+  { label: '失败', value: progress.failed, tone: 'failed' }
+]);
+
 // WebSocket 连接
 let wsDisconnect: (() => void) | null = null;
 let pollTimer: number | null = null;
@@ -381,163 +343,5 @@ onUnmounted(() => {
 </script>
 
 <style scoped>
-.aggregate-container {
-  width: 100%;
-  max-width: 1400px;
-  margin: 0 auto;
-}
-
-.config-card,
-.progress-card {
-  height: 100%;
-  min-height: 500px;
-}
-
-.card-header {
-  display: flex;
-  align-items: center;
-  gap: 8px;
-}
-
-.connection-tag {
-  margin-left: auto;
-  display: inline-flex;
-  align-items: center;
-  white-space: nowrap;
-  padding: 2px 8px;
-  font-size: 12px;
-  line-height: 1.2;
-  height: auto;
-}
-
-.connection-icon {
-  font-size: 12px;
-  margin-right: 2px;
-}
-
-.connection-text {
-  font-size: 12px;
-  white-space: nowrap;
-}
-
-.header-icon {
-  font-size: 18px;
-  color: var(--el-color-primary);
-}
-
-.card-title {
-  font-size: 16px;
-  font-weight: 600;
-  flex: 1;
-}
-
-.empty-state {
-  display: flex;
-  flex-direction: column;
-  align-items: center;
-  justify-content: center;
-  padding: 60px 20px;
-  color: var(--el-text-color-secondary);
-}
-
-.empty-icon {
-  font-size: 64px;
-  margin-bottom: 16px;
-  opacity: 0.5;
-}
-
-.empty-text {
-  font-size: 14px;
-  margin: 0;
-}
-
-.progress-content {
-  padding: 8px 0;
-}
-
-.stats-grid {
-  display: grid;
-  grid-template-columns: repeat(4, 1fr);
-  gap: 16px;
-  margin-bottom: 24px;
-}
-
-.stat-item {
-  text-align: center;
-  padding: 16px;
-  background: var(--el-bg-color-page);
-  border-radius: 8px;
-  transition: all 0.3s;
-}
-
-.stat-item:hover {
-  background: var(--el-bg-color);
-  transform: translateY(-2px);
-  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
-}
-
-.stat-label {
-  font-size: 13px;
-  color: var(--el-text-color-secondary);
-  margin-bottom: 8px;
-}
-
-.stat-value {
-  font-size: 24px;
-  font-weight: 600;
-  color: var(--el-text-color-primary);
-}
-
-.stat-value.success {
-  color: var(--el-color-success);
-}
-
-.stat-value.failed {
-  color: var(--el-color-danger);
-}
-
-.progress-section {
-  margin-bottom: 20px;
-}
-
-.current-file-section {
-  display: flex;
-  align-items: center;
-  gap: 8px;
-  padding: 12px;
-  background: var(--el-bg-color-page);
-  border-radius: 6px;
-  margin-bottom: 16px;
-}
-
-.file-icon {
-  color: var(--el-color-primary);
-  font-size: 18px;
-}
-
-.file-text {
-  flex: 1;
-  font-size: 13px;
-  color: var(--el-text-color-regular);
-  word-break: break-all;
-  line-height: 1.5;
-}
-
-.message-section {
-  margin-top: 16px;
-}
-
-/* 响应式设计 */
-@media (max-width: 768px) {
-  .stats-grid {
-    grid-template-columns: repeat(2, 1fr);
-  }
-}
-
-@media (max-width: 480px) {
-  .stats-grid {
-    grid-template-columns: 1fr;
-  }
-}
+@import '../styles/panel-shared.css';
 </style>
-
diff --git a/frontend/src/components/ConvertTab.vue b/frontend/src/components/ConvertTab.vue
index 9f14ec8..4a1fa52 100644
--- a/frontend/src/components/ConvertTab.vue
+++ b/frontend/src/components/ConvertTab.vue
@@ -5,10 +5,7 @@
       <el-col :xs="24" :sm="24" :md="12" :lg="10">
         <el-card class="config-card" shadow="hover">
           <template #header>
-            <div class="card-header">
-              <el-icon class="header-icon"><Setting /></el-icon>
-              <span class="card-title">任务配置</span>
-            </div>
+            <task-card-header :icon="Setting" title="任务配置" />
           </template>
 
           <el-form :model="form" label-width="100px" label-position="left">
@@ -186,40 +183,7 @@
       <el-col :xs="24" :sm="24" :md="12" :lg="14">
         <el-card class="progress-card" shadow="hover">
           <template #header>
-            <div class="card-header">
-              <el-icon class="header-icon"><DataLine /></el-icon>
-              <span class="card-title">任务进度</span>
-              <el-tag
-                v-if="progress.taskId && progress.completed"
-                type="info"
-                size="small"
-                effect="plain"
-                class="connection-tag"
-              >
-                <el-icon class="connection-icon"><CircleCheck /></el-icon>
-                <span class="connection-text">已结束</span>
-              </el-tag>
-              <el-tag
-                v-else-if="progress.taskId && wsConnected"
-                type="success"
-                size="small"
-                effect="plain"
-                class="connection-tag"
-              >
-                <el-icon class="connection-icon"><Connection /></el-icon>
-                <span class="connection-text">已连接</span>
-              </el-tag>
-              <el-tag
-                v-else-if="progress.taskId && !wsConnected && !progress.completed"
-                type="warning"
-                size="small"
-                effect="plain"
-                class="connection-tag"
-              >
-                <el-icon class="connection-icon"><Loading /></el-icon>
-                <span class="connection-text">连接中</span>
-              </el-tag>
-            </div>
+            <task-card-header :icon="DataLine" title="任务进度" :status="connectionStatus" />
           </template>
 
           <div v-if="!progress.taskId" class="empty-state">
@@ -229,24 +193,7 @@
 
           <div v-else class="progress-content">
             <!-- 统计信息 -->
-            <div class="stats-grid">
-              <div class="stat-item">
-                <div class="stat-label">待转码</div>
-                <div class="stat-value">{{ progress.total }}</div>
-              </div>
-              <div class="stat-item">
-                <div class="stat-label">已处理</div>
-                <div class="stat-value success">{{ progress.processed }}</div>
-              </div>
-              <div class="stat-item">
-                <div class="stat-label">成功</div>
-                <div class="stat-value success">{{ progress.success }}</div>
-              </div>
-              <div class="stat-item">
-                <div class="stat-label">失败</div>
-                <div class="stat-value failed">{{ progress.failed }}</div>
-              </div>
-            </div>
+            <task-stats-grid :items="progressStats" />
 
             <!-- 进度条 -->
             <div class="progress-section">
@@ -296,9 +243,7 @@ import {
   VideoPlay,
   Refresh,
   DataLine,
-  Connection,
   CircleCheck,
-  Loading,
   Warning,
   Document,
   InfoFilled,
@@ -308,6 +253,8 @@ import { startConvert } from '../api/convert';
 import { getProgress } from '../api/progress';
 import { useWebSocket, type ProgressMessage } from '../composables/useWebSocket';
 import { getConfig } from '../api/config';
+import TaskCardHeader, { type CardHeaderStatus } from './common/TaskCardHeader.vue';
+import TaskStatsGrid, { type StatItem } from './common/TaskStatsGrid.vue';
 
 interface Progress {
   taskId: string | null;
@@ -351,6 +298,23 @@ const percentage = computed(() => {
   return Math.round((progress.processed / progress.total) * 100);
 });
 
+const connectionStatus = computed<CardHeaderStatus | null>(() => {
+  if (!progress.taskId) {
+    return null;
+  }
+  if (progress.completed) {
+    return 'completed';
+  }
+  return wsConnected.value ? 'connected' : 'connecting';
+});
+
+const progressStats = computed<StatItem[]>(() => [
+  { label: '待转码', value: progress.total },
+  { label: '已处理', value: progress.processed, tone: 'success' },
+  { label: '成功', value: progress.success, tone: 'success' },
+  { label: '失败', value: progress.failed, tone: 'failed' }
+]);
+
 let wsDisconnect: (() => void) | null = null;
 let stopWatchingConnected: (() => void) | null = null;
 let stopWatchingError: (() => void) | null = null;
@@ -618,150 +582,7 @@ onUnmounted(() => {
 </script>
 
 <style scoped>
-.convert-container {
-  width: 100%;
-  max-width: 1400px;
-  margin: 0 auto;
-}
-
-.config-card,
-.progress-card {
-  height: 100%;
-  min-height: 500px;
-}
-
-.card-header {
-  display: flex;
-  align-items: center;
-  gap: 8px;
-}
-
-.connection-tag {
-  margin-left: auto;
-  display: inline-flex;
-  align-items: center;
-  white-space: nowrap;
-  padding: 2px 8px;
-  font-size: 12px;
-  line-height: 1.2;
-  height: auto;
-}
-
-.connection-icon {
-  font-size: 12px;
-  margin-right: 2px;
-}
-
-.connection-text {
-  font-size: 12px;
-  white-space: nowrap;
-}
-
-.header-icon {
-  font-size: 18px;
-  color: var(--el-color-primary);
-}
-
-.card-title {
-  font-size: 16px;
-  font-weight: 600;
-  flex: 1;
-}
-
-.empty-state {
-  display: flex;
-  flex-direction: column;
-  align-items: center;
-  justify-content: center;
-  padding: 60px 20px;
-  color: var(--el-text-color-secondary);
-}
-
-.empty-icon {
-  font-size: 64px;
-  margin-bottom: 16px;
-  opacity: 0.5;
-}
-
-.empty-text {
-  font-size: 14px;
-}
-
-.progress-content {
-  padding: 8px 0;
-}
-
-.stats-grid {
-  display: grid;
-  grid-template-columns: repeat(4, 1fr);
-  gap: 16px;
-  margin-bottom: 24px;
-}
-
-.stat-item {
-  text-align: center;
-  padding: 16px;
-  background: var(--el-bg-color-page);
-  border-radius: 8px;
-  transition: all 0.3s;
-}
-
-.stat-item:hover {
-  background: var(--el-bg-color);
-  transform: translateY(-2px);
-  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
-}
-
-.stat-label {
-  font-size: 13px;
-  color: var(--el-text-color-secondary);
-  margin-bottom: 8px;
-}
-
-.stat-value {
-  font-size: 24px;
-  font-weight: 600;
-  color: var(--el-text-color-primary);
-}
-
-.stat-value.success {
-  color: var(--el-color-success);
-}
-
-.stat-value.failed {
-  color: var(--el-color-danger);
-}
-
-.progress-section {
-  margin-bottom: 20px;
-}
-
-.current-file-section {
-  display: flex;
-  align-items: center;
-  gap: 8px;
-  padding: 12px;
-  background: var(--el-bg-color-page);
-  border-radius: 6px;
-  margin-bottom: 16px;
-}
-
-.file-icon {
-  color: var(--el-color-primary);
-  font-size: 18px;
-}
-
-.file-text {
-  flex: 1;
-  font-size: 13px;
-  color: var(--el-text-color-regular);
-  word-break: break-all;
-  line-height: 1.5;
-}
-
-.message-section {
-  margin-top: 16px;
-}
+@import '../styles/panel-shared.css';
 
 .mode-help-collapse {
   border: none;
@@ -973,15 +794,4 @@ onUnmounted(() => {
   }
 }
 
-@media (max-width: 768px) {
-  .stats-grid {
-    grid-template-columns: repeat(2, 1fr);
-  }
-}
-
-@media (max-width: 480px) {
-  .stats-grid {
-    grid-template-columns: 1fr;
-  }
-}
 </style>
diff --git a/frontend/src/components/DedupTab.vue b/frontend/src/components/DedupTab.vue
index 4b92739..081cd6d 100644
--- a/frontend/src/components/DedupTab.vue
+++ b/frontend/src/components/DedupTab.vue
@@ -5,10 +5,7 @@
       <el-col :xs="24" :sm="24" :md="12" :lg="10">
         <el-card class="config-card" shadow="hover">
           <template #header>
-            <div class="card-header">
-              <el-icon class="header-icon"><Setting /></el-icon>
-              <span class="card-title">任务配置</span>
-            </div>
+            <task-card-header :icon="Setting" title="任务配置" />
           </template>
 
           <el-form :model="form" label-width="100px" label-position="left">
@@ -311,40 +308,7 @@
       <el-col :xs="24" :sm="24" :md="12" :lg="14">
         <el-card class="progress-card" shadow="hover">
           <template #header>
-            <div class="card-header">
-              <el-icon class="header-icon"><DataLine /></el-icon>
-              <span class="card-title">任务进度</span>
-              <el-tag
-                v-if="progress.taskId && progress.completed"
-                type="info"
-                size="small"
-                effect="plain"
-                class="connection-tag"
-              >
-                <el-icon class="connection-icon"><CircleCheck /></el-icon>
-                <span class="connection-text">已结束</span>
-              </el-tag>
-              <el-tag
-                v-else-if="progress.taskId && wsConnected"
-                type="success"
-                size="small"
-                effect="plain"
-                class="connection-tag"
-              >
-                <el-icon class="connection-icon"><Connection /></el-icon>
-                <span class="connection-text">已连接</span>
-              </el-tag>
-              <el-tag
-                v-else-if="progress.taskId && !wsConnected && !progress.completed"
-                type="warning"
-                size="small"
-                effect="plain"
-                class="connection-tag"
-              >
-                <el-icon class="connection-icon"><Loading /></el-icon>
-                <span class="connection-text">连接中</span>
-              </el-tag>
-            </div>
+            <task-card-header :icon="DataLine" title="任务进度" :status="connectionStatus" />
           </template>
 
           <div v-if="!progress.taskId" class="empty-state">
@@ -354,26 +318,7 @@
 
           <div v-else class="progress-content">
             <!-- 统计信息 -->
-            <div class="stats-grid">
-              <div class="stat-item">
-                <div class="stat-label">扫描文件数</div>
-                <div class="stat-value">{{ progress.scanned }}</div>
-              </div>
-              <div class="stat-item">
-                <div class="stat-label">重复组数量</div>
-                <div class="stat-value success">{{ progress.duplicateGroups }}</div>
-              </div>
-              <div class="stat-item">
-                <div class="stat-label">移动/复制文件数</div>
-                <div class="stat-value success">{{ progress.moved }}</div>
-              </div>
-              <div class="stat-item">
-                <div class="stat-label">完成状态</div>
-                <div class="stat-value" :class="{ success: progress.completed }">
-                  {{ progress.completed ? '已完成' : '进行中' }}
-                </div>
-              </div>
-            </div>
+            <task-stats-grid :items="progressStats" />
 
             <!-- 进度条 -->
             <div class="progress-section">
@@ -416,9 +361,7 @@ import {
   VideoPlay,
   Refresh,
   DataLine,
-  Connection,
   CircleCheck,
-  Loading,
   Document,
   InfoFilled,
   ArrowDown,
@@ -430,6 +373,8 @@ import { startDedup } from '../api/dedup';
 import { getProgress } from '../api/progress';
 import { useWebSocket, type ProgressMessage } from '../composables/useWebSocket';
 import { getConfig } from '../api/config';
+import TaskCardHeader, { type CardHeaderStatus } from './common/TaskCardHeader.vue';
+import TaskStatsGrid, { type StatItem } from './common/TaskStatsGrid.vue';
 
 const form = reactive({
   libraryDir: '',
@@ -470,9 +415,39 @@ const percentage = computed(() => {
   return Math.round((scannedProcessed.value / scannedTotal.value) * 100);
 });
 
+const connectionStatus = computed<CardHeaderStatus | null>(() => {
+  if (!progress.taskId) {
+    return null;
+  }
+  if (progress.completed) {
+    return 'completed';
+  }
+  return wsConnected.value ? 'connected' : 'connecting';
+});
+
+const progressStats = computed<StatItem[]>(() => [
+  { label: '扫描文件数', value: progress.scanned },
+  { label: '重复组数量', value: progress.duplicateGroups, tone: 'success' },
+  { label: '移动/复制文件数', value: progress.moved, tone: 'success' },
+  { label: '完成状态', value: progress.completed ? '已完成' : '进行中', tone: progress.completed ? 'success' : 'default' }
+]);
+
 let wsDisconnect: (() => void) | null = null;
+let connectedWatchStop: (() => void) | null = null;
 let pollTimer: number | null = null;
 
+function cleanupRealtime() {
+  if (connectedWatchStop) {
+    connectedWatchStop();
+    connectedWatchStop = null;
+  }
+  if (wsDisconnect) {
+    wsDisconnect();
+    wsDisconnect = null;
+  }
+  wsConnected.value = false;
+}
+
 function startPolling(taskId: string) {
   stopPolling();
   pollTimer = window.setInterval(async () => {
@@ -507,8 +482,8 @@ function handleProgressMessage(msg: ProgressMessage) {
   scannedProcessed.value = msg.processed;
 
   progress.scanned = msg.total;
-  progress.duplicateGroups = msg.success;
-  progress.moved = msg.failed;
+  progress.duplicateGroups = msg.duplicateGroups ?? msg.success;
+  progress.moved = msg.movedFiles ?? msg.failed;
   progress.completed = msg.completed;
   progress.message = msg.message ?? '';
 }
@@ -516,16 +491,12 @@ function handleProgressMessage(msg: ProgressMessage) {
 watch(
   () => progress.taskId,
   (newTaskId) => {
-    if (wsDisconnect) {
-      wsDisconnect();
-      wsDisconnect = null;
-    }
-    wsConnected.value = false;
+    cleanupRealtime();
 
     if (newTaskId) {
       const { connect, disconnect, connected } = useWebSocket(newTaskId, handleProgressMessage);
       wsDisconnect = disconnect;
-      watch(connected, (val) => (wsConnected.value = val), { immediate: true });
+      connectedWatchStop = watch(connected, (val) => (wsConnected.value = val), { immediate: true });
       connect();
       startPolling(newTaskId);
     }
@@ -579,10 +550,7 @@ watch(
     if (done) {
       submitting.value = false;
       stopPolling();
-      if (wsDisconnect) {
-        wsDisconnect();
-        wsDisconnect = null;
-      }
+      cleanupRealtime();
     }
   }
 );
@@ -593,10 +561,7 @@ onMounted(() => {
 
 onUnmounted(() => {
   stopPolling();
-  if (wsDisconnect) {
-    wsDisconnect();
-    wsDisconnect = null;
-  }
+  cleanupRealtime();
 });
 
 async function loadDefaultPaths() {
@@ -613,10 +578,7 @@ async function loadDefaultPaths() {
 
 function reset() {
   stopPolling();
-  if (wsDisconnect) {
-    wsDisconnect();
-    wsDisconnect = null;
-  }
+  cleanupRealtime();
   form.useMd5 = false;
   form.useMetadata = true;
   form.mode = 'move';
@@ -629,130 +591,13 @@ function reset() {
   scannedTotal.value = 0;
   scannedProcessed.value = 0;
   submitting.value = false;
-  wsConnected.value = false;
   // 重新加载默认路径
   loadDefaultPaths();
 }
 </script>
 
 <style scoped>
-.dedup-container {
-  width: 100%;
-  max-width: 1400px;
-  margin: 0 auto;
-}
-
-.config-card,
-.progress-card {
-  height: 100%;
-  min-height: 500px;
-}
-
-.card-header {
-  display: flex;
-  align-items: center;
-  gap: 8px;
-}
-
-.connection-tag {
-  margin-left: auto;
-  display: inline-flex;
-  align-items: center;
-  white-space: nowrap;
-  padding: 2px 8px;
-  font-size: 12px;
-  line-height: 1.2;
-  height: auto;
-}
-
-.connection-icon {
-  font-size: 12px;
-  margin-right: 2px;
-}
-
-.connection-text {
-  font-size: 12px;
-  white-space: nowrap;
-}
-
-.header-icon {
-  font-size: 18px;
-  color: var(--el-color-primary);
-}
-
-.card-title {
-  font-size: 16px;
-  font-weight: 600;
-  flex: 1;
-}
-
-.empty-state {
-  display: flex;
-  flex-direction: column;
-  align-items: center;
-  justify-content: center;
-  padding: 60px 20px;
-  color: var(--el-text-color-secondary);
-}
-
-.empty-icon {
-  font-size: 64px;
-  margin-bottom: 16px;
-  opacity: 0.5;
-}
-
-.empty-text {
-  font-size: 14px;
-}
-
-.progress-content {
-  padding: 8px 0;
-}
-
-.stats-grid {
-  display: grid;
-  grid-template-columns: repeat(4, 1fr);
-  gap: 16px;
-  margin-bottom: 24px;
-}
-
-.stat-item {
-  text-align: center;
-  padding: 16px;
-  background: var(--el-bg-color-page);
-  border-radius: 8px;
-  transition: all 0.3s;
-}
-
-.stat-item:hover {
-  background: var(--el-bg-color);
-  transform: translateY(-2px);
-  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
-}
-
-.stat-label {
-  font-size: 13px;
-  color: var(--el-text-color-secondary);
-  margin-bottom: 8px;
-}
-
-.stat-value {
-  font-size: 24px;
-  font-weight: 600;
-  color: var(--el-text-color-primary);
-}
-
-.stat-value.success {
-  color: var(--el-color-success);
-}
-
-.progress-section {
-  margin-bottom: 20px;
-}
-
-.message-section {
-  margin-top: 16px;
-}
+@import '../styles/panel-shared.css';
 
 /* 去重策略说明样式 */
 .strategy-help-collapse,
@@ -1043,16 +888,4 @@ function reset() {
   }
 }
 
-@media (max-width: 768px) {
-  .stats-grid {
-    grid-template-columns: repeat(2, 1fr);
-  }
-}
-
-@media (max-width: 480px) {
-  .stats-grid {
-    grid-template-columns: 1fr;
-  }
-}
 </style>
-
diff --git a/frontend/src/components/MergeTab.vue b/frontend/src/components/MergeTab.vue
index b4f412b..c002755 100644
--- a/frontend/src/components/MergeTab.vue
+++ b/frontend/src/components/MergeTab.vue
@@ -5,10 +5,7 @@
       <el-col :xs="24" :sm="24" :md="12" :lg="10">
         <el-card class="config-card" shadow="hover">
           <template #header>
-            <div class="card-header">
-              <el-icon class="header-icon"><Setting /></el-icon>
-              <span class="card-title">任务配置</span>
-            </div>
+            <task-card-header :icon="Setting" title="任务配置" />
           </template>
 
           <el-form :model="form" label-width="120px" label-position="left">
@@ -220,40 +217,7 @@
       <el-col :xs="24" :sm="24" :md="12" :lg="14">
         <el-card class="progress-card" shadow="hover">
           <template #header>
-            <div class="card-header">
-              <el-icon class="header-icon"><DataLine /></el-icon>
-              <span class="card-title">任务进度</span>
-              <el-tag
-                v-if="progress.taskId && progress.completed"
-                type="info"
-                size="small"
-                effect="plain"
-                class="connection-tag"
-              >
-                <el-icon class="connection-icon"><CircleCheck /></el-icon>
-                <span class="connection-text">已结束</span>
-              </el-tag>
-              <el-tag
-                v-else-if="progress.taskId && wsConnected"
-                type="success"
-                size="small"
-                effect="plain"
-                class="connection-tag"
-              >
-                <el-icon class="connection-icon"><Connection /></el-icon>
-                <span class="connection-text">已连接</span>
-              </el-tag>
-              <el-tag
-                v-else-if="progress.taskId && !wsConnected && !progress.completed"
-                type="warning"
-                size="small"
-                effect="plain"
-                class="connection-tag"
-              >
-                <el-icon class="connection-icon"><Loading /></el-icon>
-                <span class="connection-text">连接中</span>
-              </el-tag>
-            </div>
+            <task-card-header :icon="DataLine" title="任务进度" :status="connectionStatus" />
           </template>
 
           <div v-if="!progress.taskId" class="empty-state">
@@ -263,26 +227,7 @@
 
           <div v-else class="progress-content">
             <!-- 统计信息 -->
-            <div class="stats-grid">
-              <div class="stat-item">
-                <div class="stat-label">已合并专辑数</div>
-                <div class="stat-value success">{{ progress.albums }}</div>
-              </div>
-              <div class="stat-item">
-                <div class="stat-label">已合并曲目数</div>
-                <div class="stat-value success">{{ progress.tracks }}</div>
-              </div>
-              <div class="stat-item">
-                <div class="stat-label">升级替换文件数</div>
-                <div class="stat-value">{{ progress.upgraded }}</div>
-              </div>
-              <div class="stat-item">
-                <div class="stat-label">完成状态</div>
-                <div class="stat-value" :class="{ success: progress.completed }">
-                  {{ progress.completed ? '已完成' : '进行中' }}
-                </div>
-              </div>
-            </div>
+            <task-stats-grid :items="progressStats" />
 
             <!-- 进度条 -->
             <div class="progress-section">
@@ -323,9 +268,7 @@ import {
   VideoPlay,
   Refresh,
   DataLine,
-  Connection,
   CircleCheck,
-  Loading,
   Document,
   InfoFilled,
   TrendCharts,
@@ -339,6 +282,8 @@ import { startMerge } from '../api/merge';
 import { getProgress } from '../api/progress';
 import { useWebSocket, type ProgressMessage } from '../composables/useWebSocket';
 import { getConfig } from '../api/config';
+import TaskCardHeader, { type CardHeaderStatus } from './common/TaskCardHeader.vue';
+import TaskStatsGrid, { type StatItem } from './common/TaskStatsGrid.vue';
 
 const form = reactive({
   srcDir: '',
@@ -376,9 +321,39 @@ const percentage = computed(() => {
   return Math.round((processedFiles.value / totalFiles.value) * 100);
 });
 
+const connectionStatus = computed<CardHeaderStatus | null>(() => {
+  if (!progress.taskId) {
+    return null;
+  }
+  if (progress.completed) {
+    return 'completed';
+  }
+  return wsConnected.value ? 'connected' : 'connecting';
+});
+
+const progressStats = computed<StatItem[]>(() => [
+  { label: '已合并专辑数', value: progress.albums, tone: 'success' },
+  { label: '已合并曲目数', value: progress.tracks, tone: 'success' },
+  { label: '升级替换文件数', value: progress.upgraded },
+  { label: '完成状态', value: progress.completed ? '已完成' : '进行中', tone: progress.completed ? 'success' : 'default' }
+]);
+
 let wsDisconnect: (() => void) | null = null;
+let connectedWatchStop: (() => void) | null = null;
 let pollTimer: number | null = null;
 
+function cleanupRealtime() {
+  if (connectedWatchStop) {
+    connectedWatchStop();
+    connectedWatchStop = null;
+  }
+  if (wsDisconnect) {
+    wsDisconnect();
+    wsDisconnect = null;
+  }
+  wsConnected.value = false;
+}
+
 function startPolling(taskId: string) {
   stopPolling();
   pollTimer = window.setInterval(async () => {
@@ -409,44 +384,25 @@ function handleProgressMessage(msg: ProgressMessage) {
   }
 
   // 字段映射：见后端 LibraryMergeService 注释
-  // success 字段存储专辑数，failed 字段存储曲目数
   totalFiles.value = msg.total;
   processedFiles.value = msg.processed;
 
-  progress.albums = msg.success;
-  progress.tracks = msg.failed;
+  progress.albums = msg.albumsMerged ?? msg.success;
+  progress.tracks = msg.tracksMerged ?? msg.failed;
+  progress.upgraded = msg.upgradedFiles ?? progress.upgraded;
   progress.completed = msg.completed;
   progress.message = msg.message ?? '';
-
-  // 从消息中提取升级数量（如果消息中包含）
-  if (msg.message) {
-    // 匹配 "升级: 5" 或 "升级：5" 或 "(升级: 5)" 等格式
-    const upgradeMatch = msg.message.match(/升级[：:]\s*(\d+)/);
-    if (upgradeMatch) {
-      progress.upgraded = parseInt(upgradeMatch[1], 10);
-    } else {
-      // 如果没有找到，尝试从完成消息中提取
-      const finalMatch = msg.message.match(/升级[：:]\s*(\d+)/);
-      if (finalMatch) {
-        progress.upgraded = parseInt(finalMatch[1], 10);
-      }
-    }
-  }
 }
 
 watch(
   () => progress.taskId,
   (newTaskId) => {
-    if (wsDisconnect) {
-      wsDisconnect();
-      wsDisconnect = null;
-    }
-    wsConnected.value = false;
+    cleanupRealtime();
 
     if (newTaskId) {
       const { connect, disconnect, connected } = useWebSocket(newTaskId, handleProgressMessage);
       wsDisconnect = disconnect;
-      watch(connected, (val) => (wsConnected.value = val), { immediate: true });
+      connectedWatchStop = watch(connected, (val) => (wsConnected.value = val), { immediate: true });
       connect();
       startPolling(newTaskId);
     }
@@ -494,10 +450,7 @@ watch(
     if (done) {
       submitting.value = false;
       stopPolling();
-      if (wsDisconnect) {
-        wsDisconnect();
-        wsDisconnect = null;
-      }
+      cleanupRealtime();
     }
   }
 );
@@ -508,10 +461,7 @@ onMounted(() => {
 
 onUnmounted(() => {
   stopPolling();
-  if (wsDisconnect) {
-    wsDisconnect();
-    wsDisconnect = null;
-  }
+  cleanupRealtime();
 });
 
 async function loadDefaultPaths() {
@@ -528,10 +478,7 @@ async function loadDefaultPaths() {
 
 function reset() {
   stopPolling();
-  if (wsDisconnect) {
-    wsDisconnect();
-    wsDisconnect = null;
-  }
+  cleanupRealtime();
   form.smartUpgrade = true;
   form.keepBackup = false;
   progress.taskId = null;
@@ -543,130 +490,13 @@ function reset() {
   totalFiles.value = 0;
   processedFiles.value = 0;
   submitting.value = false;
-  wsConnected.value = false;
   // 重新加载默认路径
   loadDefaultPaths();
 }
 </script>
 
 <style scoped>
-.merge-container {
-  width: 100%;
-  max-width: 1400px;
-  margin: 0 auto;
-}
-
-.config-card,
-.progress-card {
-  height: 100%;
-  min-height: 500px;
-}
-
-.card-header {
-  display: flex;
-  align-items: center;
-  gap: 8px;
-}
-
-.connection-tag {
-  margin-left: auto;
-  display: inline-flex;
-  align-items: center;
-  white-space: nowrap;
-  padding: 2px 8px;
-  font-size: 12px;
-  line-height: 1.2;
-  height: auto;
-}
-
-.connection-icon {
-  font-size: 12px;
-  margin-right: 2px;
-}
-
-.connection-text {
-  font-size: 12px;
-  white-space: nowrap;
-}
-
-.header-icon {
-  font-size: 18px;
-  color: var(--el-color-primary);
-}
-
-.card-title {
-  font-size: 16px;
-  font-weight: 600;
-  flex: 1;
-}
-
-.empty-state {
-  display: flex;
-  flex-direction: column;
-  align-items: center;
-  justify-content: center;
-  padding: 60px 20px;
-  color: var(--el-text-color-secondary);
-}
-
-.empty-icon {
-  font-size: 64px;
-  margin-bottom: 16px;
-  opacity: 0.5;
-}
-
-.empty-text {
-  font-size: 14px;
-}
-
-.progress-content {
-  padding: 8px 0;
-}
-
-.stats-grid {
-  display: grid;
-  grid-template-columns: repeat(4, 1fr);
-  gap: 16px;
-  margin-bottom: 24px;
-}
-
-.stat-item {
-  text-align: center;
-  padding: 16px;
-  background: var(--el-bg-color-page);
-  border-radius: 8px;
-  transition: all 0.3s;
-}
-
-.stat-item:hover {
-  background: var(--el-bg-color);
-  transform: translateY(-2px);
-  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
-}
-
-.stat-label {
-  font-size: 13px;
-  color: var(--el-text-color-secondary);
-  margin-bottom: 8px;
-}
-
-.stat-value {
-  font-size: 24px;
-  font-weight: 600;
-  color: var(--el-text-color-primary);
-}
-
-.stat-value.success {
-  color: var(--el-color-success);
-}
-
-.progress-section {
-  margin-bottom: 20px;
-}
-
-.message-section {
-  margin-top: 16px;
-}
+@import '../styles/panel-shared.css';
 
 /* 合并策略说明样式 */
 .strategy-help-collapse {
@@ -922,16 +752,4 @@ function reset() {
   }
 }
 
-@media (max-width: 768px) {
-  .stats-grid {
-    grid-template-columns: repeat(2, 1fr);
-  }
-}
-
-@media (max-width: 480px) {
-  .stats-grid {
-    grid-template-columns: 1fr;
-  }
-}
 </style>
-
diff --git a/frontend/src/components/RenameTab.vue b/frontend/src/components/RenameTab.vue
index 62ba563..fcd814f 100644
--- a/frontend/src/components/RenameTab.vue
+++ b/frontend/src/components/RenameTab.vue
@@ -5,10 +5,7 @@
       <el-col :xs="24" :sm="24" :md="12" :lg="10">
         <el-card class="config-card" shadow="hover">
           <template #header>
-            <div class="card-header">
-              <el-icon class="header-icon"><Setting /></el-icon>
-              <span class="card-title">任务配置</span>
-            </div>
+            <task-card-header :icon="Setting" title="任务配置" />
           </template>
 
           <el-form :model="form" label-width="100px" label-position="left">
@@ -208,40 +205,7 @@
       <el-col :xs="24" :sm="24" :md="12" :lg="14">
         <el-card class="progress-card" shadow="hover">
           <template #header>
-            <div class="card-header">
-              <el-icon class="header-icon"><DataLine /></el-icon>
-              <span class="card-title">任务进度</span>
-              <el-tag
-                v-if="progress.taskId && progress.completed"
-                type="info"
-                size="small"
-                effect="plain"
-                class="connection-tag"
-              >
-                <el-icon class="connection-icon"><CircleCheck /></el-icon>
-                <span class="connection-text">已结束</span>
-              </el-tag>
-              <el-tag
-                v-else-if="progress.taskId && wsConnected"
-                type="success"
-                size="small"
-                effect="plain"
-                class="connection-tag"
-              >
-                <el-icon class="connection-icon"><Connection /></el-icon>
-                <span class="connection-text">已连接</span>
-              </el-tag>
-              <el-tag
-                v-else-if="progress.taskId && !wsConnected && !progress.completed"
-                type="warning"
-                size="small"
-                effect="plain"
-                class="connection-tag"
-              >
-                <el-icon class="connection-icon"><Loading /></el-icon>
-                <span class="connection-text">连接中</span>
-              </el-tag>
-            </div>
+            <task-card-header :icon="DataLine" title="任务进度" :status="connectionStatus" />
           </template>
 
           <div v-if="!progress.taskId" class="empty-state">
@@ -250,24 +214,7 @@
           </div>
 
           <div v-else class="progress-content">
-            <div class="stats-grid">
-              <div class="stat-item">
-                <div class="stat-label">扫描文件数</div>
-                <div class="stat-value">{{ progress.total }}</div>
-              </div>
-              <div class="stat-item">
-                <div class="stat-label">已处理</div>
-                <div class="stat-value">{{ progress.processed }}</div>
-              </div>
-              <div class="stat-item">
-                <div class="stat-label">整理成功</div>
-                <div class="stat-value success">{{ progress.organized }}</div>
-              </div>
-              <div class="stat-item">
-                <div class="stat-label">需人工修复</div>
-                <div class="stat-value" :class="{ failed: progress.manualFix > 0 }">{{ progress.manualFix }}</div>
-              </div>
-            </div>
+            <task-stats-grid :items="progressStats" />
 
             <div class="progress-section">
               <el-progress
@@ -311,9 +258,7 @@ import {
   VideoPlay,
   Refresh,
   DataLine,
-  Connection,
   CircleCheck,
-  Loading,
   Document,
   InfoFilled,
   Warning
@@ -322,6 +267,8 @@ import { startOrganize } from '../api/organize';
 import { getProgress } from '../api/progress';
 import { useWebSocket, type ProgressMessage } from '../composables/useWebSocket';
 import { getConfig } from '../api/config';
+import TaskCardHeader, { type CardHeaderStatus } from './common/TaskCardHeader.vue';
+import TaskStatsGrid, { type StatItem } from './common/TaskStatsGrid.vue';
 
 const form = reactive({
   srcDir: '',
@@ -361,9 +308,39 @@ const percentage = computed(() => {
   return Math.round((progress.processed / progress.total) * 100);
 });
 
+const connectionStatus = computed<CardHeaderStatus | null>(() => {
+  if (!progress.taskId) {
+    return null;
+  }
+  if (progress.completed) {
+    return 'completed';
+  }
+  return wsConnected.value ? 'connected' : 'connecting';
+});
+
+const progressStats = computed<StatItem[]>(() => [
+  { label: '扫描文件数', value: progress.total },
+  { label: '已处理', value: progress.processed },
+  { label: '整理成功', value: progress.organized, tone: 'success' },
+  { label: '需人工修复', value: progress.manualFix, tone: progress.manualFix > 0 ? 'warning' : 'default' }
+]);
+
 let wsDisconnect: (() => void) | null = null;
+let connectedWatchStop: (() => void) | null = null;
 let pollTimer: number | null = null;
 
+function cleanupRealtime() {
+  if (connectedWatchStop) {
+    connectedWatchStop();
+    connectedWatchStop = null;
+  }
+  if (wsDisconnect) {
+    wsDisconnect();
+    wsDisconnect = null;
+  }
+  wsConnected.value = false;
+}
+
 function startPolling(taskId: string) {
   stopPolling();
   pollTimer = window.setInterval(async () => {
@@ -393,8 +370,8 @@ function handleProgressMessage(msg: ProgressMessage) {
 
   progress.total = msg.total;
   progress.processed = msg.processed;
-  progress.organized = msg.success;
-  progress.manualFix = msg.failed;
+  progress.organized = msg.organizedFiles ?? msg.success;
+  progress.manualFix = msg.manualFixFiles ?? msg.failed;
   progress.currentFile = msg.currentFile ?? '';
   progress.message = msg.message ?? '';
   progress.completed = msg.completed;
@@ -412,16 +389,12 @@ function handleProgressMessage(msg: ProgressMessage) {
 watch(
   () => progress.taskId,
   (newTaskId) => {
-    if (wsDisconnect) {
-      wsDisconnect();
-      wsDisconnect = null;
-    }
-    wsConnected.value = false;
+    cleanupRealtime();
 
     if (newTaskId) {
       const { connect, disconnect, connected } = useWebSocket(newTaskId, handleProgressMessage);
       wsDisconnect = disconnect;
-      watch(connected, (val) => (wsConnected.value = val), { immediate: true });
+      connectedWatchStop = watch(connected, (val) => (wsConnected.value = val), { immediate: true });
       connect();
       startPolling(newTaskId);
     }
@@ -476,10 +449,7 @@ watch(
     if (done) {
       submitting.value = false;
       stopPolling();
-      if (wsDisconnect) {
-        wsDisconnect();
-        wsDisconnect = null;
-      }
+      cleanupRealtime();
     }
   }
 );
@@ -490,10 +460,7 @@ onMounted(() => {
 
 onUnmounted(() => {
   stopPolling();
-  if (wsDisconnect) {
-    wsDisconnect();
-    wsDisconnect = null;
-  }
+  cleanupRealtime();
 });
 
 async function loadDefaultPaths() {
@@ -510,10 +477,7 @@ async function loadDefaultPaths() {
 
 function reset() {
   stopPolling();
-  if (wsDisconnect) {
-    wsDisconnect();
-    wsDisconnect = null;
-  }
+  cleanupRealtime();
   form.mode = 'strict';
   form.extractCover = true;
   form.extractLyrics = true;
@@ -527,62 +491,13 @@ function reset() {
   progress.message = '';
   progress.completed = false;
   submitting.value = false;
-  wsConnected.value = false;
   // 重新加载默认路径
   loadDefaultPaths();
 }
 </script>
 
 <style scoped>
-.organize-container {
-  width: 100%;
-  max-width: 1400px;
-  margin: 0 auto;
-}
-
-.config-card,
-.progress-card {
-  height: 100%;
-  min-height: 500px;
-}
-
-.card-header {
-  display: flex;
-  align-items: center;
-  gap: 8px;
-}
-
-.connection-tag {
-  margin-left: auto;
-  display: inline-flex;
-  align-items: center;
-  white-space: nowrap;
-  padding: 2px 8px;
-  font-size: 12px;
-  line-height: 1.2;
-  height: auto;
-}
-
-.connection-icon {
-  font-size: 12px;
-  margin-right: 2px;
-}
-
-.connection-text {
-  font-size: 12px;
-  white-space: nowrap;
-}
-
-.header-icon {
-  font-size: 18px;
-  color: var(--el-color-primary);
-}
-
-.card-title {
-  font-size: 16px;
-  font-weight: 600;
-  flex: 1;
-}
+@import '../styles/panel-shared.css';
 
 .form-tip {
   margin-top: -8px;
@@ -728,62 +643,6 @@ function reset() {
   color: var(--el-color-warning-dark-2);
 }
 
-.empty-state {
-  display: flex;
-  flex-direction: column;
-  align-items: center;
-  justify-content: center;
-  padding: 60px 20px;
-  color: var(--el-text-color-secondary);
-}
-
-.empty-icon {
-  font-size: 64px;
-  margin-bottom: 16px;
-  opacity: 0.5;
-}
-
-.empty-text {
-  font-size: 14px;
-}
-
-.progress-content {
-  padding: 8px 0;
-}
-
-.stats-grid {
-  display: grid;
-  grid-template-columns: repeat(4, 1fr);
-  gap: 16px;
-  margin-bottom: 24px;
-}
-
-.stat-item {
-  text-align: center;
-  padding: 16px;
-  background: var(--el-bg-color-page);
-  border-radius: 8px;
-  transition: all 0.3s;
-}
-
-.stat-item:hover {
-  background: var(--el-bg-color);
-  transform: translateY(-2px);
-  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
-}
-
-.stat-label {
-  font-size: 13px;
-  color: var(--el-text-color-secondary);
-  margin-bottom: 8px;
-}
-
-.stat-value {
-  font-size: 24px;
-  font-weight: 600;
-  color: var(--el-text-color-primary);
-}
-
 .stat-value.success {
   color: var(--el-color-success);
 }
@@ -792,19 +651,6 @@ function reset() {
   color: var(--el-color-warning);
 }
 
-.progress-section {
-  margin-bottom: 20px;
-}
-
-.current-file-section {
-  display: flex;
-  align-items: center;
-  gap: 8px;
-  margin-bottom: 16px;
-  font-size: 13px;
-  color: var(--el-text-color-secondary);
-}
-
 .file-icon {
   font-size: 14px;
   flex-shrink: 0;
@@ -816,23 +662,9 @@ function reset() {
   white-space: nowrap;
 }
 
-.message-section {
-  margin-top: 16px;
-}
-
 @media (max-width: 768px) {
-  .stats-grid {
-    grid-template-columns: repeat(2, 1fr);
-  }
-
   .form-tip {
     padding-left: 0;
   }
 }
-
-@media (max-width: 480px) {
-  .stats-grid {
-    grid-template-columns: 1fr;
-  }
-}
 </style>
diff --git a/frontend/src/components/SettingsTab.vue b/frontend/src/components/SettingsTab.vue
index 2087e7d..5af78be 100644
--- a/frontend/src/components/SettingsTab.vue
+++ b/frontend/src/components/SettingsTab.vue
@@ -1,10 +1,7 @@
 <template>
   <el-card class="settings-root">
     <template #header>
-      <div class="card-header">
-        <el-icon class="header-icon"><Setting /></el-icon>
-        <span class="card-title">全局路径配置</span>
-      </div>
+      <task-card-header :icon="Setting" title="全局路径配置" />
     </template>
     <el-form label-width="140px">
       <el-form-item label="工作根目录 (BasePath)" required>
@@ -78,6 +75,7 @@ import { computed, ref, onMounted } from 'vue';
 import { ElMessage } from 'element-plus';
 import { Setting, Folder, Check, Refresh } from '@element-plus/icons-vue';
 import { saveBasePath, getConfig } from '../api/config';
+import TaskCardHeader from './common/TaskCardHeader.vue';
 
 const basePath = ref('');
 const saving = ref(false);
@@ -206,27 +204,13 @@ onMounted(() => {
 </script>
 
 <style scoped>
+@import '../styles/panel-shared.css';
+
 .settings-root {
   max-width: 800px;
   margin: 0 auto;
 }
 
-.card-header {
-  display: flex;
-  align-items: center;
-  gap: 8px;
-}
-
-.header-icon {
-  font-size: 18px;
-  color: var(--el-color-primary);
-}
-
-.card-title {
-  font-size: 16px;
-  font-weight: 600;
-}
-
 .preview-title {
   font-size: 14px;
   font-weight: 600;
@@ -245,4 +229,3 @@ onMounted(() => {
   margin-top: 20px;
 }
 </style>
-
diff --git a/frontend/src/components/TraditionalFilterTab.vue b/frontend/src/components/TraditionalFilterTab.vue
index d9aafbf..42fd7ad 100644
--- a/frontend/src/components/TraditionalFilterTab.vue
+++ b/frontend/src/components/TraditionalFilterTab.vue
@@ -5,10 +5,7 @@
       <el-col :xs="24" :sm="24" :md="12" :lg="10">
         <el-card class="config-card" shadow="hover">
           <template #header>
-            <div class="card-header">
-              <el-icon class="header-icon"><Setting /></el-icon>
-              <span class="card-title">任务配置</span>
-            </div>
+            <task-card-header :icon="Setting" title="任务配置" />
           </template>
 
           <el-form :model="form" label-width="110px" label-position="left">
@@ -245,7 +242,7 @@
                             <div class="example-scenario">
                               <div class="scenario-title">
                                 <el-icon class="scenario-icon"><FolderOpened /></el-icon>
-                                <strong>场景二：输出目录不为空（复制到新目录）</strong>
+                                <strong>场景二：输出目录不为空（移动到新目录）</strong>
                               </div>
                               <div class="scenario-content">
                                 <div class="example-item">
@@ -267,7 +264,7 @@
                         <div class="mode-tip">
                           <el-icon class="tip-icon"><Promotion /></el-icon>
                           <div class="tip-content">
-                            <strong>使用建议</strong>：建议先用预览模式确认需要转换的文件，然后再使用执行模式。如果输出目录不为空，系统会将包含繁体的文件移动到输出目录，这样可以保留原始文件作为备份。
+                            <strong>使用建议</strong>：建议先用预览模式确认需要转换的文件，然后再使用执行模式。如果输出目录不为空，系统会将包含繁体的文件移动到输出目录；如需保留原始文件，请先手动备份源目录。
                           </div>
                         </div>
                       </div>
@@ -307,40 +304,7 @@
       <el-col :xs="24" :sm="24" :md="12" :lg="14">
         <el-card class="progress-card" shadow="hover">
           <template #header>
-            <div class="card-header">
-              <el-icon class="header-icon"><DataLine /></el-icon>
-              <span class="card-title">任务进度</span>
-              <el-tag
-                v-if="progress.taskId && progress.completed"
-                type="info"
-                size="small"
-                effect="plain"
-                class="connection-tag"
-              >
-                <el-icon class="connection-icon"><CircleCheck /></el-icon>
-                <span class="connection-text">已结束</span>
-              </el-tag>
-              <el-tag
-                v-else-if="progress.taskId && wsConnected"
-                type="success"
-                size="small"
-                effect="plain"
-                class="connection-tag"
-              >
-                <el-icon class="connection-icon"><Connection /></el-icon>
-                <span class="connection-text">已连接</span>
-              </el-tag>
-              <el-tag
-                v-else-if="progress.taskId && !wsConnected && !progress.completed"
-                type="warning"
-                size="small"
-                effect="plain"
-                class="connection-tag"
-              >
-                <el-icon class="connection-icon"><Loading /></el-icon>
-                <span class="connection-text">连接中</span>
-              </el-tag>
-            </div>
+            <task-card-header :icon="DataLine" title="任务进度" :status="connectionStatus" />
           </template>
 
           <div v-if="!progress.taskId" class="empty-state">
@@ -350,24 +314,7 @@
 
           <div v-else class="progress-content">
             <!-- 统计信息 -->
-            <div class="stats-grid">
-              <div class="stat-item">
-                <div class="stat-label">总文件数</div>
-                <div class="stat-value">{{ progress.total }}</div>
-              </div>
-              <div class="stat-item">
-                <div class="stat-label">已扫描</div>
-                <div class="stat-value success">{{ progress.processed }}</div>
-              </div>
-              <div class="stat-item">
-                <div class="stat-label">繁体标签条目</div>
-                <div class="stat-value success">{{ progress.entries }}</div>
-              </div>
-              <div class="stat-item">
-                <div class="stat-label">失败文件数</div>
-                <div class="stat-value failed">{{ progress.failed }}</div>
-              </div>
-            </div>
+            <task-stats-grid :items="progressStats" />
 
             <!-- 进度条 -->
             <div class="progress-section">
@@ -414,9 +361,7 @@ import {
   VideoPlay,
   Refresh,
   DataLine,
-  Connection,
   CircleCheck,
-  Loading,
   Document,
   InfoFilled,
   ArrowDown,
@@ -430,6 +375,8 @@ import { startZhConvert } from '../api/zhconvert';
 import { getProgress } from '../api/progress';
 import { useWebSocket, type ProgressMessage } from '../composables/useWebSocket';
 import { getConfig } from '../api/config';
+import TaskCardHeader, { type CardHeaderStatus } from './common/TaskCardHeader.vue';
+import TaskStatsGrid, { type StatItem } from './common/TaskStatsGrid.vue';
 
 interface ProgressState {
   taskId: string | null;
@@ -474,9 +421,39 @@ const percentage = computed(() => {
   return Math.round((progress.processed / progress.total) * 100);
 });
 
+const connectionStatus = computed<CardHeaderStatus | null>(() => {
+  if (!progress.taskId) {
+    return null;
+  }
+  if (progress.completed) {
+    return 'completed';
+  }
+  return wsConnected.value ? 'connected' : 'connecting';
+});
+
+const progressStats = computed<StatItem[]>(() => [
+  { label: '总文件数', value: progress.total },
+  { label: '已扫描', value: progress.processed, tone: 'success' },
+  { label: '繁体标签条目', value: progress.entries, tone: 'success' },
+  { label: '失败文件数', value: progress.failed, tone: 'failed' }
+]);
+
 let wsDisconnect: (() => void) | null = null;
+let connectedWatchStop: (() => void) | null = null;
 let pollTimer: number | null = null;
 
+function cleanupRealtime() {
+  if (connectedWatchStop) {
+    connectedWatchStop();
+    connectedWatchStop = null;
+  }
+  if (wsDisconnect) {
+    wsDisconnect();
+    wsDisconnect = null;
+  }
+  wsConnected.value = false;
+}
+
 function startPolling(taskId: string) {
   stopPolling();
   pollTimer = window.setInterval(async () => {
@@ -507,8 +484,8 @@ function handleProgressMessage(msg: ProgressMessage) {
   }
   progress.total = msg.total;
   progress.processed = msg.processed;
-  progress.entries = msg.success;
-  progress.failed = msg.failed;
+  progress.entries = msg.traditionalEntries ?? msg.success;
+  progress.failed = msg.failedFiles ?? msg.failed;
   progress.currentFile = msg.currentFile || '';
   progress.message = msg.message || '';
   progress.completed = msg.completed;
@@ -526,16 +503,12 @@ function handleProgressMessage(msg: ProgressMessage) {
 watch(
   () => progress.taskId,
   (newTaskId) => {
-    if (wsDisconnect) {
-      wsDisconnect();
-      wsDisconnect = null;
-    }
-    wsConnected.value = false;
+    cleanupRealtime();
 
     if (newTaskId) {
       const { connect, disconnect, connected } = useWebSocket(newTaskId, handleProgressMessage);
       wsDisconnect = disconnect;
-      watch(connected, (val) => (wsConnected.value = val), { immediate: true });
+      connectedWatchStop = watch(connected, (val) => (wsConnected.value = val), { immediate: true });
       connect();
       startPolling(newTaskId);
     }
@@ -592,11 +565,8 @@ async function loadDefaultPaths() {
 }
 
 function reset() {
-  if (wsDisconnect) {
-    wsDisconnect();
-    wsDisconnect = null;
-  }
   stopPolling();
+  cleanupRealtime();
   form.threshold = 10;
   form.mode = 'preview';
   progress.taskId = null;
@@ -608,7 +578,6 @@ function reset() {
   progress.message = '';
   progress.completed = false;
   submitting.value = false;
-  wsConnected.value = false;
   // 重新加载默认路径
   loadDefaultPaths();
 }
@@ -618,159 +587,13 @@ onMounted(() => {
 });
 
 onUnmounted(() => {
-  if (wsDisconnect) {
-    wsDisconnect();
-    wsDisconnect = null;
-  }
   stopPolling();
+  cleanupRealtime();
 });
 </script>
 
 <style scoped>
-.zhconvert-container {
-  width: 100%;
-  max-width: 1400px;
-  margin: 0 auto;
-}
-
-.config-card,
-.progress-card {
-  height: 100%;
-  min-height: 500px;
-}
-
-.card-header {
-  display: flex;
-  align-items: center;
-  gap: 8px;
-}
-
-.header-icon {
-  font-size: 18px;
-  color: var(--el-color-primary);
-}
-
-.card-title {
-  font-size: 16px;
-  font-weight: 600;
-  flex: 1;
-}
-
-.connection-tag {
-  margin-left: auto;
-  display: inline-flex;
-  align-items: center;
-  white-space: nowrap;
-  padding: 2px 8px;
-  font-size: 12px;
-  line-height: 1.2;
-  height: auto;
-}
-
-.connection-icon {
-  font-size: 12px;
-  margin-right: 2px;
-}
-
-.connection-text {
-  font-size: 12px;
-  white-space: nowrap;
-}
-
-.empty-state {
-  display: flex;
-  flex-direction: column;
-  align-items: center;
-  justify-content: center;
-  padding: 60px 20px;
-  color: var(--el-text-color-secondary);
-}
-
-.empty-icon {
-  font-size: 64px;
-  margin-bottom: 16px;
-  opacity: 0.5;
-}
-
-.empty-text {
-  font-size: 14px;
-}
-
-.progress-content {
-  padding: 8px 0;
-}
-
-.stats-grid {
-  display: grid;
-  grid-template-columns: repeat(4, 1fr);
-  gap: 16px;
-  margin-bottom: 24px;
-}
-
-.stat-item {
-  text-align: center;
-  padding: 16px;
-  background: var(--el-bg-color-page);
-  border-radius: 8px;
-  transition: all 0.3s;
-}
-
-.stat-item:hover {
-  background: var(--el-bg-color);
-  transform: translateY(-2px);
-  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
-}
-
-.stat-label {
-  font-size: 13px;
-  color: var(--el-text-color-secondary);
-  margin-bottom: 8px;
-}
-
-.stat-value {
-  font-size: 24px;
-  font-weight: 600;
-  color: var(--el-text-color-primary);
-}
-
-.stat-value.success {
-  color: var(--el-color-success);
-}
-
-.stat-value.failed {
-  color: var(--el-color-danger);
-}
-
-.progress-section {
-  margin-bottom: 20px;
-}
-
-.current-file-section {
-  display: flex;
-  align-items: center;
-  gap: 8px;
-  padding: 12px;
-  background: var(--el-bg-color-page);
-  border-radius: 6px;
-  margin-bottom: 16px;
-}
-
-.file-icon {
-  color: var(--el-color-primary);
-  font-size: 18px;
-}
-
-.file-text {
-  flex: 1;
-  font-size: 13px;
-  color: var(--el-text-color-regular);
-  word-break: break-all;
-  line-height: 1.5;
-}
-
-.message-section {
-  margin-top: 16px;
-}
+@import '../styles/panel-shared.css';
 
 /* 繁体占比阈值说明样式 */
 .threshold-help-collapse,
@@ -1101,15 +924,4 @@ onUnmounted(() => {
   color: #6b7280;
 }
 
-@media (max-width: 768px) {
-  .stats-grid {
-    grid-template-columns: repeat(2, 1fr);
-  }
-}
-
-@media (max-width: 480px) {
-  .stats-grid {
-    grid-template-columns: 1fr;
-  }
-}
 </style>
diff --git a/frontend/src/components/common/TaskCardHeader.vue b/frontend/src/components/common/TaskCardHeader.vue
new file mode 100644
index 0000000..dd8e11d
--- /dev/null
+++ b/frontend/src/components/common/TaskCardHeader.vue
@@ -0,0 +1,71 @@
+<template>
+  <div class="card-header">
+    <el-icon class="header-icon"><component :is="icon" /></el-icon>
+    <span class="card-title">{{ title }}</span>
+    <el-tag
+      v-if="status"
+      :type="tagType"
+      size="small"
+      effect="plain"
+      class="connection-tag"
+    >
+      <el-icon class="connection-icon"><component :is="statusIcon" /></el-icon>
+      <span class="connection-text">{{ statusText }}</span>
+    </el-tag>
+  </div>
+</template>
+
+<script setup lang="ts">
+import { computed } from 'vue';
+import type { Component } from 'vue';
+import { CircleCheck, Connection, Loading } from '@element-plus/icons-vue';
+
+export type CardHeaderStatus = 'completed' | 'connected' | 'connecting';
+
+interface Props {
+  icon: Component;
+  title: string;
+  status?: CardHeaderStatus | null;
+}
+
+const props = defineProps<Props>();
+
+const statusTextMap: Record<CardHeaderStatus, string> = {
+  completed: '已结束',
+  connected: '已连接',
+  connecting: '连接中'
+};
+
+const statusTagTypeMap: Record<CardHeaderStatus, 'info' | 'success' | 'warning'> = {
+  completed: 'info',
+  connected: 'success',
+  connecting: 'warning'
+};
+
+const statusIconMap: Record<CardHeaderStatus, Component> = {
+  completed: CircleCheck,
+  connected: Connection,
+  connecting: Loading
+};
+
+const statusText = computed(() => {
+  if (!props.status) {
+    return '';
+  }
+  return statusTextMap[props.status];
+});
+
+const tagType = computed(() => {
+  if (!props.status) {
+    return 'info';
+  }
+  return statusTagTypeMap[props.status];
+});
+
+const statusIcon = computed(() => {
+  if (!props.status) {
+    return CircleCheck;
+  }
+  return statusIconMap[props.status];
+});
+</script>
diff --git a/frontend/src/components/common/TaskStatsGrid.vue b/frontend/src/components/common/TaskStatsGrid.vue
new file mode 100644
index 0000000..4d45b22
--- /dev/null
+++ b/frontend/src/components/common/TaskStatsGrid.vue
@@ -0,0 +1,24 @@
+<template>
+  <div class="stats-grid">
+    <div v-for="(item, index) in items" :key="`${item.label}-${index}`" class="stat-item">
+      <div class="stat-label">{{ item.label }}</div>
+      <div class="stat-value" :class="item.tone && item.tone !== 'default' ? item.tone : ''">
+        {{ item.value }}
+      </div>
+    </div>
+  </div>
+</template>
+
+<script setup lang="ts">
+export interface StatItem {
+  label: string;
+  value: number | string;
+  tone?: 'default' | 'success' | 'failed' | 'warning';
+}
+
+interface Props {
+  items: StatItem[];
+}
+
+defineProps<Props>();
+</script>
diff --git a/frontend/src/composables/useWebSocket.ts b/frontend/src/composables/useWebSocket.ts
index fd86320..3b35252 100644
--- a/frontend/src/composables/useWebSocket.ts
+++ b/frontend/src/composables/useWebSocket.ts
@@ -12,6 +12,16 @@ export interface ProgressMessage {
   currentFile: string;
   message: string;
   completed: boolean;
+  duplicateGroups?: number;
+  movedFiles?: number;
+  organizedFiles?: number;
+  manualFixFiles?: number;
+  traditionalEntries?: number;
+  failedFiles?: number;
+  albumsMerged?: number;
+  tracksMerged?: number;
+  upgradedFiles?: number;
+  skippedFiles?: number;
 }
 
 export function useWebSocket(taskId: string | null, onMessage: (msg: ProgressMessage) => void) {
diff --git a/frontend/src/main.ts b/frontend/src/main.ts
index b6c65d1..4447903 100644
--- a/frontend/src/main.ts
+++ b/frontend/src/main.ts
@@ -3,6 +3,7 @@ import { createPinia } from 'pinia';
 import ElementPlus from 'element-plus';
 import 'element-plus/dist/index.css';
 import './styles/reset.css';
+import './styles/theme.css';
 import App from './App.vue';
 
 const app = createApp(App);
@@ -11,4 +12,3 @@ app.use(createPinia());
 app.use(ElementPlus);
 
 app.mount('#app');
-
diff --git a/frontend/src/styles/panel-shared.css b/frontend/src/styles/panel-shared.css
new file mode 100644
index 0000000..e63fab8
--- /dev/null
+++ b/frontend/src/styles/panel-shared.css
@@ -0,0 +1,185 @@
+.aggregate-container,
+.convert-container,
+.dedup-container,
+.zhconvert-container,
+.organize-container,
+.filter-container,
+.rename-container,
+.merge-container {
+  width: 100%;
+  max-width: 1400px;
+  margin: 0 auto;
+  animation: panelFadeIn 0.42s ease-out;
+}
+
+.config-card,
+.progress-card {
+  height: 100%;
+  min-height: 500px;
+  border-radius: 16px;
+}
+
+.card-header {
+  display: flex;
+  align-items: center;
+  gap: 8px;
+}
+
+.connection-tag {
+  margin-left: auto;
+  display: inline-flex;
+  align-items: center;
+  white-space: nowrap;
+  padding: 2px 8px;
+  font-size: 12px;
+  line-height: 1.2;
+  height: auto;
+}
+
+.connection-icon {
+  font-size: 12px;
+  margin-right: 2px;
+}
+
+.connection-text {
+  font-size: 12px;
+  white-space: nowrap;
+}
+
+.header-icon {
+  font-size: 18px;
+  color: var(--el-color-primary);
+}
+
+.card-title {
+  flex: 1;
+  font-size: 16px;
+  font-weight: 700;
+  letter-spacing: 0.2px;
+  color: #0f172a;
+}
+
+.empty-state {
+  display: flex;
+  flex-direction: column;
+  align-items: center;
+  justify-content: center;
+  padding: 60px 20px;
+  color: var(--el-text-color-secondary);
+}
+
+.empty-icon {
+  font-size: 64px;
+  margin-bottom: 16px;
+  opacity: 0.45;
+}
+
+.empty-text {
+  margin: 0;
+  font-size: 14px;
+}
+
+.progress-content {
+  padding: 8px 0;
+}
+
+.stats-grid {
+  display: grid;
+  grid-template-columns: repeat(4, 1fr);
+  gap: 14px;
+  margin-bottom: 24px;
+}
+
+.stat-item {
+  text-align: center;
+  padding: 16px;
+  border-radius: 10px;
+  border: 1px solid rgba(148, 163, 184, 0.2);
+  background: linear-gradient(155deg, rgba(255, 255, 255, 0.95), rgba(241, 247, 252, 0.85));
+  transition: all 0.22s ease;
+}
+
+.stat-item:hover {
+  transform: translateY(-2px);
+  border-color: rgba(13, 148, 136, 0.32);
+  box-shadow: 0 14px 30px -28px rgba(15, 23, 42, 0.55);
+}
+
+.stat-label {
+  margin-bottom: 8px;
+  font-size: 13px;
+  color: #64748b;
+}
+
+.stat-value {
+  font-size: 24px;
+  font-weight: 700;
+  color: #0f172a;
+}
+
+.stat-value.success {
+  color: #0f766e;
+}
+
+.stat-value.failed {
+  color: #dc2626;
+}
+
+.stat-value.warning {
+  color: #b45309;
+}
+
+.progress-section {
+  margin-bottom: 20px;
+}
+
+.current-file-section {
+  display: flex;
+  align-items: center;
+  gap: 8px;
+  padding: 12px;
+  border-radius: 8px;
+  border: 1px solid rgba(148, 163, 184, 0.24);
+  background: rgba(244, 249, 253, 0.84);
+  margin-bottom: 16px;
+}
+
+.file-icon {
+  color: var(--el-color-primary);
+  font-size: 18px;
+}
+
+.file-text {
+  flex: 1;
+  font-size: 13px;
+  color: #334155;
+  word-break: break-all;
+  line-height: 1.5;
+}
+
+.message-section {
+  margin-top: 16px;
+}
+
+@media (max-width: 768px) {
+  .stats-grid {
+    grid-template-columns: repeat(2, 1fr);
+  }
+}
+
+@media (max-width: 480px) {
+  .stats-grid {
+    grid-template-columns: 1fr;
+  }
+}
+
+@keyframes panelFadeIn {
+  from {
+    opacity: 0;
+    transform: translateY(8px);
+  }
+  to {
+    opacity: 1;
+    transform: translateY(0);
+  }
+}
diff --git a/frontend/src/styles/theme.css b/frontend/src/styles/theme.css
new file mode 100644
index 0000000..47f5435
--- /dev/null
+++ b/frontend/src/styles/theme.css
@@ -0,0 +1,76 @@
+:root {
+  --brand-50: #f0fdfa;
+  --brand-100: #ccfbf1;
+  --brand-200: #99f6e4;
+  --brand-500: #14b8a6;
+  --brand-600: #0d9488;
+  --brand-700: #0f766e;
+  --ink-900: #0f172a;
+  --ink-700: #334155;
+  --ink-500: #64748b;
+
+  --el-color-primary: var(--brand-600);
+  --el-color-primary-light-3: #2fb9ae;
+  --el-color-primary-light-5: #5ac7bf;
+  --el-color-primary-light-7: #8ad9d3;
+  --el-color-primary-light-8: #a9e5e1;
+  --el-color-primary-light-9: #daf4f2;
+  --el-color-primary-dark-2: #0c857a;
+
+  --el-bg-color: rgba(255, 255, 255, 0.92);
+  --el-bg-color-page: #f3f7fb;
+  --el-text-color-primary: var(--ink-900);
+  --el-text-color-regular: var(--ink-700);
+  --el-text-color-secondary: var(--ink-500);
+  --el-border-color: #d6dee8;
+  --el-border-color-light: #e5ebf2;
+  --el-border-color-lighter: #edf2f7;
+
+  --el-border-radius-base: 12px;
+  --el-border-radius-small: 10px;
+}
+
+body {
+  color: var(--ink-900);
+  font-family: 'Avenir Next', 'PingFang SC', 'Noto Sans SC', 'Microsoft YaHei', sans-serif;
+}
+
+#app {
+  isolation: isolate;
+}
+
+.el-card {
+  border: 1px solid rgba(148, 163, 184, 0.24) !important;
+  box-shadow: 0 20px 40px -36px rgba(15, 23, 42, 0.5) !important;
+  background: rgba(255, 255, 255, 0.88) !important;
+}
+
+.el-card:hover {
+  box-shadow: 0 26px 48px -36px rgba(15, 23, 42, 0.56) !important;
+}
+
+.el-button--primary {
+  background: linear-gradient(120deg, #0d9488, #0e7490) !important;
+  border-color: transparent !important;
+}
+
+.el-button--primary:hover {
+  opacity: 0.93;
+}
+
+.el-input__wrapper,
+.el-textarea__inner,
+.el-select__wrapper {
+  background-color: rgba(255, 255, 255, 0.82) !important;
+}
+
+@media (prefers-reduced-motion: reduce) {
+  *,
+  *::before,
+  *::after {
+    animation-duration: 0.01ms !important;
+    animation-iteration-count: 1 !important;
+    transition-duration: 0.01ms !important;
+    scroll-behavior: auto !important;
+  }
+}
diff --git a/优化发布说明.md b/优化发布说明.md
new file mode 100644
index 0000000..7891dda
--- /dev/null
+++ b/优化发布说明.md
@@ -0,0 +1,40 @@
+# 音乐功能优化发布说明（草案）
+
+## 1. 本次优化范围
+
+- 去重：修复 MD5 + 元数据双策略下重复处理同一文件问题。
+- 文件移动：统一跨盘容错（`move` 失败自动回退 `copy + delete`）。
+- 繁简转换：统一“输出目录不为空”行为说明为“移动到输出目录后再修改”。
+- 进度模型：新增结构化进度字段，减少 `success/failed` 语义复用。
+- 进度缓存：增加 TTL 过期清理，避免长期堆积。
+- 前端任务页：修复 WebSocket 连接切换时 watch 释放不完整问题。
+- 转码稳定性：增加 ffmpeg 预检查、单文件超时与错误分类。
+- 繁简质量：扩充常见繁简映射字典。
+
+## 2. 兼容性说明
+
+- `ProgressMessage` 保留 `success/failed` 老字段，前端优先读取新字段，兼容历史逻辑。
+- API 路径与任务启动入参结构未变（`/api/*/start` 仍保持一致）。
+
+## 3. 可能感知到的行为变化
+
+- 去重任务在双策略场景下，重复文件不再被重复搬运，失败噪声明显降低。
+- 跨盘移动相关任务（汇聚/整理/入库/去重/繁简输出）在跨分区下成功率更高。
+- 繁简执行模式且指定输出目录时，文件会移动到输出目录，不再描述为“复制副本”。
+- 合并任务前端不再从文案解析升级数量，而是读取结构化字段。
+
+## 4. 风险与回滚点
+
+- 进度字段新增后，若第三方客户端仅依赖旧字段，应确认兼容映射。
+- 文件移动回退为 `copy + delete` 时，极端情况下可能受磁盘空间影响。
+- 繁简映射字典扩展后，个别专有名词可能需要人工复核。
+
+## 5. 验证建议（发布前）
+
+- 后端：`mvn test`、`mvn clean compile`
+- 前端：`npm run build`
+- 手工回归：
+  - 双策略去重（MD5+元数据）
+  - 跨盘移动（源/目标分区不同）
+  - 繁简预览/执行（输出目录空/非空）
+  - 四个任务页反复切换与重置，确认无重复消息
diff --git a/优化计划.md b/优化计划.md
new file mode 100644
index 0000000..a796b46
--- /dev/null
+++ b/优化计划.md
@@ -0,0 +1,108 @@
+# 音乐功能优化计划
+
+> 执行顺序固定：**开发 -> 测试 -> 完成打勾**。
+> 规则：当前任务未完成前，不进入下一任务。
+
+## 执行规则（每个任务都遵守）
+
+- 1) 先做开发（代码实现）
+- 2) 再做测试（最少手工回归 + 受影响模块命令验证）
+- 3) 测试通过后再打勾“完成”
+- 4) 未完成前，不进入下一个任务
+
+---
+
+## 优化总计划（按顺序执行）
+
+### 0. 基线与安全准备
+- [ ] 开发：建立基线分支，记录当前可复现问题与性能基线（大目录扫描、长任务进度、跨盘移动）。
+- [ ] 测试：执行 `frontend npm run build`、`backend mvn clean compile`，确认当前基线可构建。
+- [ ] 完成：基线文档记录完毕后打勾。
+
+### 1. 去重流程重复处理问题（最高优先）
+- [x] 开发：修复 `DedupService` 中 MD5 与元数据双策略重复处理同一文件的问题（去重阶段共享“已处理集合”）。
+- [x] 测试：已补充后端自动化测试（`DedupServiceInternalTest`），验证“已处理集合过滤”和“重复处理计数累加”行为。
+- [x] 完成：结果稳定后打勾。
+
+### 2. 文件移动跨盘容错统一
+- [x] 开发：抽出统一文件操作工具（优先 `move`，失败回退 `copy + delete`），替换汇聚/转码/整理/入库中的直接 `Files.move`。
+- [x] 测试：已补充 `FileTransferUtilsTest`，覆盖同盘移动、覆盖写入、跨文件系统移动（`/dev/shm` 可用时）。
+- [x] 完成：所有相关服务替换并通过测试后打勾。
+
+### 3. 繁简转换输出目录语义统一
+- [x] 开发：统一“输出目录不为空”行为（明确是“移动”还是“复制”），同步后端注释、DTO 说明、前端文案。
+- [x] 测试：已补充 `ZhConvertServiceInternalTest`，覆盖预览模式保持原文件、执行模式输出目录移动并保留相对路径。
+- [x] 完成：前后端行为与说明一致后打勾。
+
+### 4. 进度消息模型标准化
+- [x] 开发：扩展 `ProgressMessage`（增加业务字段如 `duplicateGroups`、`albums`、`tracks` 等），减少 `success/failed` 的语义复用。
+- [x] 测试：已补充 `ProgressMessageMappingTest`，验证 dedup/organize/zhconvert/merge 的结构化字段映射。
+- [x] 完成：前端无需“特殊猜字段”后打勾。
+
+### 5. 任务进度存储清理机制
+- [x] 开发：为 `ProgressStore` 增加完成任务清理策略（TTL 或定时清理）。
+- [x] 测试：已补充 `ProgressStoreTest`，验证正常读取与过期清理行为。
+- [x] 完成：验证通过后打勾。
+
+### 6. 前端 WebSocket/watch 释放治理
+- [x] 开发：统一封装任务页连接生命周期，保存并释放所有 `watch` 的 stop handle。
+- [x] 测试：代码级检查通过（4 个任务页均包含 `cleanupRealtime` + `connectedWatchStop` 释放链路），并通过前端构建验证。
+- [x] 完成：四个任务页（Dedup/Rename/Merge/TraditionalFilter）全部修复后打勾。
+
+### 7. 转码稳定性增强（ffmpeg 预检 + 超时）
+- [x] 开发：在 `ConvertService` 增加 ffmpeg 可用性预检查、单文件超时与错误分类。
+- [x] 测试：已补充 `ConvertServiceInternalTest` 覆盖 ffmpeg 缺失、损坏输入、超时文案分类，并通过全量后端测试。
+- [x] 完成：异常处理链路已覆盖并通过测试后打勾。
+
+### 8. 繁体转换质量提升
+- [x] 开发：扩展字典或接入更完整方案（如 OpenCC），并保持可配置开关。
+- [x] 测试：已补充 `TraditionalFilterServiceTest`，验证常见歌手/专辑元数据样本转换与繁体占比统计。
+- [x] 完成：达到当前样本准确率后打勾。
+
+### 9. 回归与验收（全功能）
+- [x] 开发：整理发布说明与变更清单（行为变化、兼容性、风险点）。
+- [ ] 测试：自动化回归已完成（`mvn test`、`npm run build`）；全链路音频样本手工回归待执行。
+- [ ] 完成：所有任务页和后端服务验收通过后打勾，计划收口。
+
+---
+
+## 完成定义（DoD）
+
+- [x] 每个已完成任务都有对应测试记录（命令输出或手工步骤）
+- [x] 前后端行为和页面文案一致
+- [x] 长任务可追踪、可结束、失败可解释（以自动化与结构化进度字段验证）
+- [ ] 无已知阻断缺陷（P1/P0）
+- [x] `AGENTS.md` 已同步更新（若命令/规范有变化）
+
+---
+
+## 每日打勾模板（可复制）
+
+```md
+### 日期：YYYY-MM-DD
+- 负责人：
+- 当前任务：
+- 开发进展：
+- 测试结果：
+- 风险与阻塞：
+- 是否完成打勾：是 / 否
+```
+
+---
+
+## 当前测试记录（自动化）
+
+- [x] `mvn -Dtest=FileTransferUtilsTest test`
+- [x] `mvn -Dtest=DedupServiceInternalTest test`
+- [x] `mvn -Dtest=ProgressStoreTest test`
+- [x] `mvn -Dtest=ZhConvertServiceInternalTest test`
+- [x] `mvn -Dtest=ProgressMessageMappingTest test`
+- [x] `mvn -Dtest=TraditionalFilterServiceTest test`
+- [x] `mvn -Dtest=ConvertServiceInternalTest test`
+- [x] `mvn -Dtest=ConvertServiceInternalTest,TraditionalFilterServiceTest test`
+- [x] `mvn -Dtest=FileTransferUtilsTest,ProgressStoreTest,ZhConvertServiceInternalTest,ProgressMessageMappingTest test`
+- [x] `mvn test`
+- [x] `mvn clean compile`
+- [x] `npm run build`
+
+> 说明：跨盘移动、WebSocket 多次切页、繁简真实样本准确率等场景仍需手工回归。