diff --git a/app/run.py b/app/run.py
index 2921619..ef08451 100644
--- a/app/run.py
+++ b/app/run.py
@@ -28,6 +28,8 @@ import re
 import random
 import time
 import treelib
+from functools import lru_cache
+from threading import Lock
 
 parent_dir = os.path.abspath(os.path.join(os.path.dirname(__file__), ".."))
 sys.path.insert(0, parent_dir)
@@ -96,6 +98,45 @@ PORT = int(os.environ.get("PORT", "5005"))
 config_data = {}
 task_plugins_config_default = {}
 
+# 文件列表缓存
+file_list_cache = {}
+cache_lock = Lock()
+
+# 默认性能参数（如果配置中没有设置）
+DEFAULT_PERFORMANCE_CONFIG = {
+    "api_page_size": 200,
+    "cache_expire_time": 30
+}
+
+def get_performance_config():
+    """获取性能配置参数"""
+    try:
+        if config_data and "file_performance" in config_data:
+            perf_config = config_data["file_performance"]
+            # 确保所有值都是整数类型
+            result = {}
+            for key, default_value in DEFAULT_PERFORMANCE_CONFIG.items():
+                try:
+                    result[key] = int(perf_config.get(key, default_value))
+                except (ValueError, TypeError):
+                    result[key] = default_value
+            return result
+    except Exception as e:
+        print(f"获取性能配置失败: {e}")
+    return DEFAULT_PERFORMANCE_CONFIG
+
+def cleanup_expired_cache():
+    """清理所有过期缓存"""
+    current_time = time.time()
+    perf_config = get_performance_config()
+    cache_expire_time = perf_config.get("cache_expire_time", 30)
+
+    with cache_lock:
+        expired_keys = [k for k, (_, t) in file_list_cache.items() if current_time - t > cache_expire_time]
+        for k in expired_keys:
+            del file_list_cache[k]
+        return len(expired_keys)
+
 app = Flask(__name__)
 app.config["APP_VERSION"] = get_app_ver()
 app.secret_key = "ca943f6db6dd34823d36ab08d8d6f65d"
@@ -683,7 +724,15 @@ def get_share_detail():
 def get_savepath_detail():
     if not is_login():
         return jsonify({"success": False, "message": "未登录"})
-    account = Quark(config_data["cookie"][0], 0)
+
+    # 获取账号索引参数
+    account_index = int(request.args.get("account_index", 0))
+
+    # 验证账号索引
+    if account_index < 0 or account_index >= len(config_data["cookie"]):
+        return jsonify({"success": False, "message": "账号索引无效"})
+
+    account = Quark(config_data["cookie"][account_index], account_index)
     paths = []
     if path := request.args.get("path"):
         if path == "/":
@@ -718,7 +767,15 @@ def get_savepath_detail():
 def delete_file():
     if not is_login():
         return jsonify({"success": False, "message": "未登录"})
-    account = Quark(config_data["cookie"][0], 0)
+
+    # 获取账号索引参数
+    account_index = int(request.json.get("account_index", 0))
+
+    # 验证账号索引
+    if account_index < 0 or account_index >= len(config_data["cookie"]):
+        return jsonify({"success": False, "message": "账号索引无效"})
+
+    account = Quark(config_data["cookie"][account_index], account_index)
     if fid := request.json.get("fid"):
         response = account.delete([fid])
         
@@ -805,6 +862,15 @@ def add_task():
 # 定时任务执行的函数
 def run_python(args):
     logging.info(f">>> 定时运行任务")
+
+    # 在定时任务开始前清理过期缓存
+    try:
+        cleaned_count = cleanup_expired_cache()
+        if cleaned_count > 0:
+            logging.info(f">>> 清理了 {cleaned_count} 个过期缓存项")
+    except Exception as e:
+        logging.warning(f">>> 清理缓存时出错: {e}")
+
     # 检查是否需要随机延迟执行
     if delay := config_data.get("crontab_delay"):
         try:
@@ -816,7 +882,7 @@ def run_python(args):
                 time.sleep(random_delay)
         except (ValueError, TypeError):
             logging.warning(f">>> 延迟执行设置无效: {delay}")
-    
+
     os.system(f"{PYTHON_PATH} {args}")
 
 
@@ -1075,7 +1141,7 @@ def format_records(records):
 def get_user_info():
     if not is_login():
         return jsonify({"success": False, "message": "未登录"})
-    
+
     user_info_list = []
     for idx, cookie in enumerate(config_data["cookie"]):
         account = Quark(cookie, idx)
@@ -1095,26 +1161,101 @@ def get_user_info():
                 "is_active": False,
                 "has_mparam": has_mparam
             })
-    
+
     return jsonify({"success": True, "data": user_info_list})
 
 
+@app.route("/get_accounts_detail")
+def get_accounts_detail():
+    """获取所有账号的详细信息，包括昵称和空间使用情况"""
+    if not is_login():
+        return jsonify({"success": False, "message": "未登录"})
+
+    accounts_detail = []
+    for idx, cookie in enumerate(config_data["cookie"]):
+        account = Quark(cookie, idx)
+        account_info = account.init()
+
+        # 如果无法获取账号信息，检查是否有移动端参数
+        if not account_info:
+            has_mparam = bool(account.mparam)
+            # 如果只有移动端参数，跳过此账号（不显示在文件整理页面的账号选择栏中）
+            if has_mparam:
+                continue
+            else:
+                # 如果既没有账号信息也没有移动端参数，显示为未登录
+                account_detail = {
+                    "index": idx,
+                    "nickname": "",
+                    "is_active": False,
+                    "used_space": 0,
+                    "total_space": 0,
+                    "usage_rate": 0,
+                    "display_text": f"账号{idx + 1}（未登录）"
+                }
+                accounts_detail.append(account_detail)
+                continue
+
+        # 成功获取账号信息的情况
+        account_detail = {
+            "index": idx,
+            "nickname": account_info["nickname"],
+            "is_active": account.is_active,
+            "used_space": 0,
+            "total_space": 0,
+            "usage_rate": 0,
+            "display_text": ""
+        }
+
+        # 检查是否有移动端参数
+        has_mparam = bool(account.mparam)
+        
+        if has_mparam:
+            # 同时有cookie和移动端参数，尝试获取空间信息
+            try:
+                growth_info = account.get_growth_info()
+                if growth_info:
+                    total_capacity = growth_info.get("total_capacity", 0)
+                    account_detail["total_space"] = total_capacity
+                    # 显示昵称和总容量
+                    total_str = format_bytes(total_capacity)
+                    account_detail["display_text"] = f"{account_info['nickname']} · {total_str}"
+                else:
+                    # 获取空间信息失败，只显示昵称
+                    account_detail["display_text"] = account_info["nickname"]
+            except Exception as e:
+                logging.error(f"获取账号 {idx} 空间信息失败: {str(e)}")
+                # 获取空间信息失败，只显示昵称
+                account_detail["display_text"] = account_info["nickname"]
+        else:
+            # 只有cookie，没有移动端参数，只显示昵称
+            account_detail["display_text"] = account_info["nickname"]
+
+        accounts_detail.append(account_detail)
+
+    return jsonify({"success": True, "data": accounts_detail})
+
+
 # 重置文件夹（删除文件夹内所有文件和相关记录）
 @app.route("/reset_folder", methods=["POST"])
 def reset_folder():
     if not is_login():
         return jsonify({"success": False, "message": "未登录"})
-    
+
     # 获取请求参数
     save_path = request.json.get("save_path", "")
-    task_name = request.json.get("task_name", "")
-    
+    account_index = int(request.json.get("account_index", 0))  # 新增账号索引参数
+
     if not save_path:
         return jsonify({"success": False, "message": "保存路径不能为空"})
-    
+
     try:
+        # 验证账号索引
+        if account_index < 0 or account_index >= len(config_data["cookie"]):
+            return jsonify({"success": False, "message": "账号索引无效"})
+
         # 初始化夸克网盘客户端
-        account = Quark(config_data["cookie"][0], 0)
+        account = Quark(config_data["cookie"][account_index], account_index)
         
         # 1. 获取文件夹ID
         # 先检查是否已有缓存的文件夹ID
@@ -1182,18 +1323,24 @@ def reset_folder():
 def get_file_list():
     if not is_login():
         return jsonify({"success": False, "message": "未登录"})
-    
+
     # 获取请求参数
     folder_id = request.args.get("folder_id", "root")
     sort_by = request.args.get("sort_by", "file_name")
     order = request.args.get("order", "asc")
     page = int(request.args.get("page", 1))
     page_size = int(request.args.get("page_size", 15))
-    
+    account_index = int(request.args.get("account_index", 0))
+    force_refresh = request.args.get("force_refresh", "false").lower() == "true"  # 新增账号索引参数
+
     try:
+        # 验证账号索引
+        if account_index < 0 or account_index >= len(config_data["cookie"]):
+            return jsonify({"success": False, "message": "账号索引无效"})
+
         # 初始化夸克网盘客户端
-        account = Quark(config_data["cookie"][0], 0)
-        
+        account = Quark(config_data["cookie"][account_index], account_index)
+
         # 获取文件列表
         if folder_id == "root":
             folder_id = "0"  # 根目录的ID为0
@@ -1201,43 +1348,92 @@ def get_file_list():
         else:
             # 获取当前文件夹的路径
             paths = account.get_paths(folder_id)
-        
-        # 获取文件列表
-        files = account.ls_dir(folder_id)
+
+        # 获取性能配置
+        perf_config = get_performance_config()
+        api_page_size = perf_config.get("api_page_size", 200)
+        cache_expire_time = perf_config.get("cache_expire_time", 30)
+
+        # 缓存键
+        cache_key = f"{account_index}_{folder_id}_{sort_by}_{order}"
+        current_time = time.time()
+
+        # 检查缓存（除非强制刷新）
+        if not force_refresh:
+            with cache_lock:
+                if cache_key in file_list_cache:
+                    cache_data, cache_time = file_list_cache[cache_key]
+                    if current_time - cache_time < cache_expire_time:
+                        # 使用缓存数据
+                        cached_files = cache_data
+                        total = len(cached_files)
+                        start_idx = (page - 1) * page_size
+                        end_idx = min(start_idx + page_size, total)
+                        paginated_files = cached_files[start_idx:end_idx]
+
+                        return jsonify({
+                            "success": True,
+                            "data": {
+                                "list": paginated_files,
+                                "total": total,
+                                "paths": paths
+                            }
+                        })
+        else:
+            # 强制刷新时，清除当前目录的缓存
+            with cache_lock:
+                if cache_key in file_list_cache:
+                    del file_list_cache[cache_key]
+
+        # 无论分页还是全部模式，都必须获取所有文件才能进行正确的全局排序
+        files = account.ls_dir(folder_id, page_size=api_page_size)
+
         if isinstance(files, dict) and files.get("error"):
-            return jsonify({"success": False, "message": f"获取文件列表失败: {files.get('error', '未知错误')}"})
-        
+            # 检查是否是目录不存在的错误
+            error_msg = files.get('error', '未知错误')
+            if "不存在" in error_msg or "无效" in error_msg or "找不到" in error_msg:
+                return jsonify({"success": False, "message": f"目录不存在或无权限访问: {error_msg}"})
+            else:
+                return jsonify({"success": False, "message": f"获取文件列表失败: {error_msg}"})
+
         # 计算总数
         total = len(files)
-        
-        # 排序
-        if sort_by == "file_name":
-            files.sort(key=lambda x: x["file_name"].lower())
-        elif sort_by == "file_size":
-            files.sort(key=lambda x: x["size"] if not x["dir"] else 0)
-        else:  # updated_at
-            files.sort(key=lambda x: x["updated_at"])
 
-        if order == "desc":
-            files.reverse()
+        # 优化排序：使用更高效的排序方法
+        def get_sort_key(file_item):
+            if sort_by == "file_name":
+                return file_item["file_name"].lower()
+            elif sort_by == "file_size":
+                return file_item["size"] if not file_item["dir"] else 0
+            else:  # updated_at
+                return file_item["updated_at"]
 
-        # 根据排序字段决定是否将目录放在前面
+        # 分离文件夹和文件以优化排序
         if sort_by == "updated_at":
             # 修改日期排序时严格按照日期排序，不区分文件夹和文件
+            files.sort(key=get_sort_key, reverse=(order == "desc"))
             sorted_files = files
         else:
-            # 其他排序时目录始终在前面
+            # 其他排序时目录始终在前面，分别排序以提高效率
             directories = [f for f in files if f["dir"]]
             normal_files = [f for f in files if not f["dir"]]
+
+            directories.sort(key=get_sort_key, reverse=(order == "desc"))
+            normal_files.sort(key=get_sort_key, reverse=(order == "desc"))
+
             sorted_files = directories + normal_files
-        
+
+        # 更新缓存
+        with cache_lock:
+            file_list_cache[cache_key] = (sorted_files, current_time)
+
         # 分页
         start_idx = (page - 1) * page_size
         end_idx = min(start_idx + page_size, total)
         paginated_files = sorted_files[start_idx:end_idx]
-        
+
         return jsonify({
-            "success": True, 
+            "success": True,
             "data": {
                 "list": paginated_files,
                 "total": total,
@@ -1263,13 +1459,18 @@ def preview_rename():
     naming_mode = request.args.get("naming_mode", "regex")  # regex, sequence, episode
     include_folders = request.args.get("include_folders", "false") == "true"
     filterwords = request.args.get("filterwords", "")
-    
+    account_index = int(request.args.get("account_index", 0))  # 新增账号索引参数
+
     if not pattern:
         pattern = ".*"
-    
+
     try:
+        # 验证账号索引
+        if account_index < 0 or account_index >= len(config_data["cookie"]):
+            return jsonify({"success": False, "message": "账号索引无效"})
+
         # 初始化夸克网盘客户端
-        account = Quark(config_data["cookie"][0], 0)
+        account = Quark(config_data["cookie"][account_index], account_index)
         
         # 获取文件列表
         if folder_id == "root":
@@ -1415,13 +1616,18 @@ def batch_rename():
     # 获取请求参数
     data = request.json
     files = data.get("files", [])
-    
+    account_index = int(data.get("account_index", 0))  # 新增账号索引参数
+
     if not files:
         return jsonify({"success": False, "message": "没有文件需要重命名"})
-    
+
     try:
+        # 验证账号索引
+        if account_index < 0 or account_index >= len(config_data["cookie"]):
+            return jsonify({"success": False, "message": "账号索引无效"})
+
         # 初始化夸克网盘客户端
-        account = Quark(config_data["cookie"][0], 0)
+        account = Quark(config_data["cookie"][account_index], account_index)
         
         # 批量重命名
         success_count = 0
@@ -1481,10 +1687,17 @@ def undo_rename():
         return jsonify({"success": False, "message": "未登录"})
     data = request.json
     save_path = data.get("save_path", "")
+    account_index = int(data.get("account_index", 0))  # 新增账号索引参数
+
     if not save_path:
         return jsonify({"success": False, "message": "缺少目录参数"})
+
     try:
-        account = Quark(config_data["cookie"][0], 0)
+        # 验证账号索引
+        if account_index < 0 or account_index >= len(config_data["cookie"]):
+            return jsonify({"success": False, "message": "账号索引无效"})
+
+        account = Quark(config_data["cookie"][account_index], account_index)
         # 查询该目录下最近一次重命名（按transfer_time分组，task_name=rename）
         records = record_db.get_records_by_save_path(save_path)
         rename_records = [r for r in records if r["task_name"] == "rename"]
diff --git a/app/static/css/main.css b/app/static/css/main.css
index 02f5743..50a8d7c 100644
--- a/app/static/css/main.css
+++ b/app/static/css/main.css
@@ -4037,6 +4037,21 @@ table.selectable-records .expand-button:hover {
   margin-right: -4px !important;
 }
 
+/* 文件整理性能设置样式 */
+.performance-setting-row > [class*='col-'] {
+  padding-left: 4px !important;
+  padding-right: 4px !important;
+}
+.performance-setting-row {
+  margin-left: -4px !important;
+  margin-right: -4px !important;
+}
+
+/* 性能设置板块标题上移8px，统一与其他设置板块的间距 */
+.row.title[title*="文件整理页面的请求参数"] {
+  margin-top: 12px !important; /* 从默认的20px减少到12px，上移8px */
+}
+
 /* 任务单元基础样式 */
 .task {
   position: relative;
@@ -4187,6 +4202,19 @@ select.task-filter-select,
 
 .batch-rename-btn {
   margin-left: 8px;
+  color: var(--dark-text-color) !important;
+  border-color: var(--dark-text-color) !important;
+}
+
+.batch-rename-btn:hover {
+  background-color: var(--dark-text-color) !important;
+  border-color: var(--dark-text-color) !important;
+  color: white !important;
+}
+
+/* 文件整理页面刷新当前目录缓存按钮图标大小 */
+.batch-rename-btn .bi-arrow-clockwise {
+  font-size: 1.15rem;
 }
 
 /* 文件表格中的展开按钮 */
@@ -4422,6 +4450,28 @@ tr.selected-file .file-size-cell .delete-record-btn {
   width: 100%;
 }
 
+/* 文件整理账号选择栏样式 */
+.file-manager-account-selector {
+  margin-bottom: 8px !important;
+}
+
+/* 账号选择下拉框样式 */
+.file-manager-account-select {
+  padding-left: 8px !important;
+  text-indent: 0 !important;
+  display: flex !important;
+  align-items: center !important;
+  line-height: 1.5 !important;
+  padding-right: 24px !important;
+}
+
+/* 账号选择框右侧圆角 - 需要更高优先级覆盖file-manager-input的圆角设置 */
+.file-manager-rule-bar .file-manager-account-select,
+.file-manager-rule-bar-responsive .file-manager-account-select {
+  border-top-right-radius: 6px !important;
+  border-bottom-right-radius: 6px !important;
+}
+
 /* 禁止在表格中选择文本，以便更好地支持点击选择 */
 table.selectable-files {
   user-select: none;
@@ -4860,6 +4910,12 @@ body .selectable-files tr.selected-file .file-size-cell .delete-record-btn {
   border-radius: 0 !important; /* 去除圆角 */
 }
 
+/* 账号选择框例外 - 保持右侧圆角 */
+.file-manager-rule-bar .file-manager-input.file-manager-account-select {
+  border-top-right-radius: 6px !important;
+  border-bottom-right-radius: 6px !important;
+}
+
 /* 文件整理页面重命名配置框输入框相邻边框重叠样式 */
 .file-manager-rule-bar .file-manager-input:not(:first-child) {
   margin-left: -1px; /* 向左移动1px，使边框重叠 */
@@ -5033,6 +5089,15 @@ body .selectable-files tr.selected-file .file-size-cell .delete-record-btn {
   .file-manager-rule-bar-responsive { display: block !important; }
   .file-manager-rule-bar-responsive .input-group { width: 100%; }
   .file-manager-rule-bar-responsive .input-group + .input-group { margin-top: 8px; }
+
+  /* 移动端账号选择栏下边距 - 确保与命名规则栏有8px间距 */
+  .file-manager-account-selector {
+    margin-bottom: 8px !important;
+  }
+
+  .file-manager-account-selector .file-manager-rule-bar-responsive {
+    margin-bottom: 0 !important; /* 移除内部边距，使用外部容器的边距 */
+  }
   /* 含文件夹样式调整 */
   .file-manager-rule-bar-responsive .input-group-text.file-folder-rounded {
     border-top-left-radius: 0 !important; /* 左侧不要圆角 */
@@ -5067,6 +5132,11 @@ body .selectable-files tr.selected-file .file-size-cell .delete-record-btn {
   .file-manager-rule-bar-responsive .input-group .batch-rename-btn {
     margin-left: 8px !important;
   }
+
+  /* 移动端账号选择栏中的刷新按钮间距 */
+  .file-manager-rule-bar-responsive .d-flex .batch-rename-btn {
+    margin-left: 8px !important;
+  }
 }
 @media (min-width: 768px) {
   .file-manager-rule-bar { display: flex !important; }
diff --git a/app/templates/index.html b/app/templates/index.html
index fed8fb2..771bcc6 100644
--- a/app/templates/index.html
+++ b/app/templates/index.html
@@ -363,7 +363,7 @@
                 </span>
               </div>
             </div>
-            <p style="margin-top: -4px; margin-bottom: 4px;">所有账号都会进行签到（纯签到只需填写移动端参数），只有第一个账号会进行转存，请自行确认顺序。如需签到，请在 Cookie 后方添加签到参数。</p>
+            <p style="margin-top: -4px; margin-bottom: 4px;">所有账号都会进行签到（纯签到只需填写移动端参数），只有第一个账号会进行转存，请自行确认账号顺序；所有填写了 Cookie 的账号均支持文件整理，如需签到请在 Cookie 后方添加签到参数。</p>
             <div v-for="(value, index) in formData.cookie" :key="index" class="input-group mb-2">
               <div class="input-group-prepend" v-if="userInfoList[index]">
                 <span class="input-group-text" :style="userInfoList[index].nickname ? (userInfoList[index].is_active ? 'color: var(--dark-text-color);' : 'color: red;') : 'color: var(--dark-text-color);'">
@@ -398,7 +398,7 @@
                 </div>
               </div>
               <div class="col-sm-6 pl-1">
-                <div class="input-group" title="添加随机延迟时间：定时任务将在0到设定秒数之间随机延迟执行，可设范围：0–3600秒，0表示不延迟">
+                <div class="input-group" title="添加随机延迟时间：定时任务将在0到设定秒数之间随机延迟执行。建议值：0–3600，0表示不延迟">
                   <div class="input-group-prepend">
                     <span class="input-group-text">延迟执行</span>
                   </div>
@@ -612,6 +612,40 @@
               </div>
             </div>
 
+            <!-- 性能设置 -->
+            <div class="row title" title="调整文件整理页面的请求参数和缓存时长，可提升大文件夹的加载速度和数据刷新效率。合理配置可减少API请求次数，同时保证数据及时更新">
+              <div class="col">
+                <h2 style="display: inline-block; font-size: 1.5rem;">性能设置</h2>
+                <span class="badge badge-pill badge-light">
+                  <a href="#"><i class="bi bi-question-circle"></i></a>
+                </span>
+              </div>
+            </div>
+            <div class="row mb-2 performance-setting-row">
+              <div class="col-lg-6 col-md-6 mb-2">
+                <div class="input-group" title="每次请求夸克API时获取的文件数量，适当增大该数值可减少请求次数，提升大文件夹的加载效率。建议值：100–500">
+                  <div class="input-group-prepend">
+                    <span class="input-group-text">单次请求文件数量</span>
+                  </div>
+                  <input type="text" class="form-control no-spinner" v-model="formData.file_performance.api_page_size" placeholder="200">
+                  <div class="input-group-append">
+                    <span class="input-group-text square-append">个</span>
+                  </div>
+                </div>
+              </div>
+              <div class="col-lg-6 col-md-6 mb-2">
+                <div class="input-group" title="文件列表在本地缓存的持续时间，过期后将自动清除。设置过短会增加API请求次数，设置过长可能无法及时反映最新变动。建议值：0-300，0表示不缓存">
+                  <div class="input-group-prepend">
+                    <span class="input-group-text">文件列表缓存时长</span>
+                  </div>
+                  <input type="text" class="form-control no-spinner" v-model="formData.file_performance.cache_expire_time" placeholder="30">
+                  <div class="input-group-append">
+                    <span class="input-group-text square-append">秒</span>
+                  </div>
+                </div>
+              </div>
+            </div>
+
           </div>
 
           <div v-if="activeTab === 'tasklist'">
@@ -1000,13 +1034,48 @@
 
           <div v-if="activeTab === 'filemanager'">
             <div style="height: 20px;"></div>
+            <!-- 账号选择栏 -->
+            <div class="row file-manager-account-selector">
+              <div class="col-12">
+                <!-- 桌面端账号选择 -->
+                <div class="d-flex align-items-center file-manager-rule-bar">
+                  <div class="input-group-prepend">
+                    <span class="input-group-text">夸克账号</span>
+                  </div>
+                  <div class="position-relative" style="flex: 1;">
+                    <select class="form-control task-filter-select file-manager-input file-manager-account-select" v-model="fileManager.selectedAccountIndex" @change="onAccountChange">
+                      <option v-for="(account, index) in accountsDetail" :key="index" :value="index">{{ account.display_text }}</option>
+                    </select>
+                  </div>
+                  <button type="button" class="btn btn-outline-primary batch-rename-btn" @click="refreshCurrentFolderCache" title="刷新当前目录缓存">
+                    <i class="bi bi-arrow-clockwise"></i>
+                  </button>
+                </div>
+                <!-- 移动端账号选择 -->
+                <div class="file-manager-rule-bar-responsive">
+                  <div class="d-flex align-items-center">
+                    <div class="input-group" style="flex: 1;">
+                      <div class="input-group-prepend">
+                        <span class="input-group-text">夸克账号</span>
+                      </div>
+                      <select class="form-control task-filter-select file-manager-account-select" v-model="fileManager.selectedAccountIndex" @change="onAccountChange">
+                        <option v-for="(account, index) in accountsDetail" :key="index" :value="index">{{ account.display_text }}</option>
+                      </select>
+                    </div>
+                    <button type="button" class="btn btn-outline-primary batch-rename-btn" @click="refreshCurrentFolderCache" title="刷新当前目录缓存">
+                      <i class="bi bi-arrow-clockwise"></i>
+                    </button>
+                  </div>
+                </div>
+              </div>
+            </div>
             <!-- 重命名规则设置栏 -->
             <div class="row mb-3">
               <div class="col-12">
                 <!-- 桌面端结构（原有） -->
                 <div class="d-flex align-items-center file-manager-rule-bar">
                   <div class="input-group-prepend">
-                    <button class="btn btn-outline-secondary" type="button" @click="switchNamingMode"
+                    <button class="btn btn-outline-secondary" type="button" @click="previewAndRename"
                       :title="fileManager.use_sequence_naming ? '预览顺序命名效果' : (fileManager.use_episode_naming ? '预览剧集命名效果' : '预览正则命名效果')">
                       {{ fileManager.use_sequence_naming ? '顺序命名' : (fileManager.use_episode_naming ? '剧集命名' : '正则命名') }}
                     </button>
@@ -1022,7 +1091,7 @@
                       <input type="checkbox" v-model="fileManager.include_folders">&nbsp;含文件夹
                     </div>
                   </div>
-                  <button type="button" class="btn btn-outline-primary batch-rename-btn" @click="switchNamingMode" title="预览并执行重命名">
+                  <button type="button" class="btn btn-outline-primary batch-rename-btn" @click="previewAndRename" title="预览并执行重命名">
                     <i class="bi bi-pencil"></i>
                   </button>
                 </div>
@@ -1031,7 +1100,7 @@
                   <!-- 第一行：命名按钮+表达式+替换表达式 -->
                   <div class="input-group mb-2">
                     <div class="input-group-prepend">
-                      <button class="btn btn-outline-secondary" type="button" @click="switchNamingMode"
+                      <button class="btn btn-outline-secondary" type="button" @click="previewAndRename"
                         :title="fileManager.use_sequence_naming ? '预览顺序命名效果' : (fileManager.use_episode_naming ? '预览剧集命名效果' : '预览正则命名效果')">
                         {{ fileManager.use_sequence_naming ? '顺序命名' : (fileManager.use_episode_naming ? '剧集命名' : '正则命名') }}
                       </button>
@@ -1051,7 +1120,7 @@
                     <span class="input-group-text file-folder-rounded">
                       <input type="checkbox" v-model="fileManager.include_folders">&nbsp;含文件夹
                     </span>
-                    <button type="button" class="btn btn-outline-primary batch-rename-btn" @click="switchNamingMode" title="预览并执行重命名">
+                    <button type="button" class="btn btn-outline-primary batch-rename-btn" @click="previewAndRename" title="预览并执行重命名">
                       <i class="bi bi-pencil"></i>
                     </button>
                   </div>
@@ -1417,9 +1486,14 @@
             delete_task: "always",
             refresh_plex: "always",
             refresh_alist: "always"
+          },
+          file_performance: {
+            api_page_size: 200,
+            cache_expire_time: 30
           }
         },
         userInfoList: [], // 用户信息列表
+        accountsDetail: [], // 账号详细信息列表
         newTask: {
           taskname: "",
           shareurl: "",
@@ -1497,8 +1571,13 @@
         lastSelectedRecordIndex: -1, // 记录最后选择的记录索引，用于Shift选择
         fileManager: {
           loading: false,
-          // 当前文件夹ID - 根据localStorage决定初始目录
-          currentFolder: localStorage.getItem('quarkAutoSave_fileManagerLastFolder') || 'root',
+          // 当前文件夹ID - 根据localStorage和账号索引决定初始目录
+          currentFolder: (() => {
+            const selectedAccountIndex = parseInt(localStorage.getItem('quarkAutoSave_selectedAccountIndex') || '0');
+            return localStorage.getItem(`quarkAutoSave_fileManagerLastFolder_${selectedAccountIndex}`) || 'root';
+          })(),
+          // 选中的账号索引 - 从localStorage读取，默认为0
+          selectedAccountIndex: parseInt(localStorage.getItem('quarkAutoSave_selectedAccountIndex') || '0'),
           // 面包屑导航路径
           paths: [],
           // 文件列表
@@ -1691,6 +1770,7 @@
         activeTab(newValue, oldValue) {
           // 如果切换到文件整理页面，则加载文件列表
           if (newValue === 'filemanager') {
+            this.fetchAccountsDetail();
             this.loadFileListWithoutLoading(this.fileManager.currentFolder);
           }
         },
@@ -1705,7 +1785,11 @@
         this.fetchData();
         this.checkNewVersion();
         this.fetchUserInfo(); // 获取用户信息
-        
+        this.fetchAccountsDetail(); // 获取账号详细信息
+
+        // 迁移旧的localStorage数据到新格式（为每个账号单独存储目录）
+        this.migrateFileManagerFolderData();
+
         // 添加点击事件监听
         document.addEventListener('click', this.handleOutsideClick);
         document.addEventListener('click', this.handleModalOutsideClick);
@@ -1822,6 +1906,7 @@
           
           // 如果当前标签是文件整理，则加载文件列表
           if (this.activeTab === 'filemanager') {
+            this.fetchAccountsDetail();
             this.loadFileListWithoutLoading(this.fileManager.currentFolder);
           }
           
@@ -1874,6 +1959,92 @@
               console.error('获取用户信息失败:', error);
             });
         },
+
+        fetchAccountsDetail() {
+          // 获取所有账号的详细信息，包括空间使用情况
+          axios.get('/get_accounts_detail')
+            .then(response => {
+              if (response.data.success) {
+                this.accountsDetail = response.data.data;
+                // 验证当前选中的账号索引是否有效
+                if (this.fileManager.selectedAccountIndex >= this.accountsDetail.length) {
+                  this.fileManager.selectedAccountIndex = 0;
+                  localStorage.setItem('quarkAutoSave_selectedAccountIndex', '0');
+                }
+              }
+            })
+            .catch(error => {
+              console.error('获取账号详细信息失败:', error);
+            });
+        },
+
+        // 迁移旧的localStorage数据到新格式（为每个账号单独存储目录）
+        migrateFileManagerFolderData() {
+          const oldFolderKey = 'quarkAutoSave_fileManagerLastFolder';
+          const oldFolderValue = localStorage.getItem(oldFolderKey);
+
+          if (oldFolderValue) {
+            // 如果存在旧数据，将其迁移到当前选中账号的新格式
+            const currentAccountIndex = this.fileManager.selectedAccountIndex;
+            const newFolderKey = `quarkAutoSave_fileManagerLastFolder_${currentAccountIndex}`;
+
+            // 只有当新格式的数据不存在时才进行迁移
+            if (!localStorage.getItem(newFolderKey)) {
+              localStorage.setItem(newFolderKey, oldFolderValue);
+              console.log(`已将文件管理器目录数据迁移到账号 ${currentAccountIndex}: ${oldFolderValue}`);
+            }
+
+            // 删除旧的数据
+            localStorage.removeItem(oldFolderKey);
+          }
+        },
+
+        onAccountChange() {
+          // 保存选中的账号索引到localStorage
+          localStorage.setItem('quarkAutoSave_selectedAccountIndex', this.fileManager.selectedAccountIndex.toString());
+
+          // 获取新账号最后一次访问的目录
+          const newAccountLastFolder = localStorage.getItem(`quarkAutoSave_fileManagerLastFolder_${this.fileManager.selectedAccountIndex}`) || 'root';
+
+          // 重置页码并切换到新账号的最后访问目录
+          this.fileManager.currentPage = 1;
+          this.loadFileListWithFallback(newAccountLastFolder);
+        },
+
+        refreshCurrentFolderCache() {
+          // 刷新当前目录的缓存，强制重新请求最新的文件列表
+          // 调用后端接口，添加强制刷新参数
+          const params = {
+            folder_id: this.fileManager.currentFolder || 'root',
+            sort_by: this.fileManager.sortBy,
+            order: this.fileManager.sortOrder,
+            page_size: this.fileManager.pageSize,
+            page: this.fileManager.currentPage,
+            account_index: this.fileManager.selectedAccountIndex,
+            force_refresh: true  // 强制刷新参数
+          };
+
+          axios.get('/file_list', { params })
+            .then(response => {
+              if (response.data.success) {
+                this.fileManager.fileList = response.data.data.list;
+                this.fileManager.total = response.data.data.total;
+                this.fileManager.totalPages = Math.ceil(response.data.data.total / this.fileManager.pageSize);
+                this.fileManager.paths = response.data.data.paths || [];
+                this.fileManager.gotoPage = this.fileManager.currentPage;
+                // 移除成功通知
+              } else {
+                this.showToast('刷新失败：' + response.data.message);
+              }
+
+              // 检测当前的命名模式
+              this.detectFileManagerNamingMode();
+            })
+            .catch(error => {
+              console.error('刷新缓存失败:', error);
+              this.showToast('刷新缓存失败，请稍后重试');
+            });
+        },
         // 添加一个检查分享链接状态的方法
         checkShareUrlStatus() {
           // 只在任务列表页面检查
@@ -1966,6 +2137,8 @@
             if (savedFileManagerPageSize) {
               this.fileManager.pageSize = savedFileManagerPageSize === 'all' ? 99999 : parseInt(savedFileManagerPageSize);
             }
+            // 获取账号详细信息
+            this.fetchAccountsDetail();
             this.loadFileListWithoutLoading(this.fileManager.currentFolder);
           }
         },
@@ -2042,6 +2215,24 @@
                   refresh_alist: "always"
                 };
               }
+              // 确保文件整理性能配置存在
+              if (!config_data.file_performance) {
+                config_data.file_performance = {
+                  api_page_size: 200,
+                  cache_expire_time: 30
+                };
+              } else {
+                // 确保必要的字段存在，移除废弃的字段
+                if (!config_data.file_performance.api_page_size) {
+                  config_data.file_performance.api_page_size = 200;
+                }
+                if (!config_data.file_performance.cache_expire_time) {
+                  config_data.file_performance.cache_expire_time = 30;
+                }
+                // 移除废弃的字段
+                delete config_data.file_performance.large_page_size;
+                delete config_data.file_performance.cache_cleanup_interval;
+              }
               this.formData = config_data;
               setTimeout(() => {
                 this.configModified = false;
@@ -2869,6 +3060,22 @@
             params = { fid: params }
           }
           this.modalLoading = true;
+
+          // 根据模态框类型决定使用哪个账号
+          // 任务配置相关的模态框始终使用主账号（索引0）
+          // 文件整理页面的预览模态框使用选中的账号
+          const modalType = document.getElementById('fileSelectModal').getAttribute('data-modal-type');
+          const accountIndex = (modalType === 'preview-filemanager') ? this.fileManager.selectedAccountIndex : 0;
+
+          // 添加账号索引参数
+          if (typeof params === 'object' && params !== null) {
+            params.account_index = accountIndex;
+          } else {
+            params = {
+              fid: params,
+              account_index: accountIndex
+            };
+          }
           axios.get('/get_savepath_detail', {
             params: params
           }).then(response => {
@@ -4090,7 +4297,7 @@
               // 查找对应的文件对象，获取文件名
               const fileObj = this.fileSelect.fileList.find(file => file.fid === fid);
               const fileName = fileObj ? fileObj.file_name : '';
-              
+
               return axios.post('/delete_file', { fid: fid, file_name: fileName, delete_records: deleteRecords, save_path: save_path })
                 .then(response => {
                   return { fid: fid, success: response.data.code === 0, deleted_records: response.data.deleted_records || 0 };
@@ -4272,8 +4479,8 @@
             }
           }
           
-          // 保存当前目录到localStorage
-          localStorage.setItem('quarkAutoSave_fileManagerLastFolder', folderId);
+          // 保存当前目录到localStorage（为每个账号单独保存）
+          localStorage.setItem(`quarkAutoSave_fileManagerLastFolder_${this.fileManager.selectedAccountIndex}`, folderId);
           
           // 重置页码并加载新文件夹内容，不显示加载动画
           this.fileManager.currentPage = 1;
@@ -4445,15 +4652,18 @@
               files: [{
                 file_id: file.fid,
                 new_name: newName
-              }]
+              }],
+              // 添加账号索引参数，使用文件整理页面选中的账号
+              account_index: this.fileManager.selectedAccountIndex
             })
               .then(response => {
                 if (response.data.success) {
                   this.showToast('重命名成功');
-                  // 更新本地文件列表中的文件名
-                  const index = this.fileManager.fileList.findIndex(f => f.fid === file.fid);
-                  if (index !== -1) {
-                    this.fileManager.fileList[index].file_name = newName;
+                  // 刷新文件列表以确保缓存同步
+                  this.refreshCurrentFolderCache();
+                  // 如果命名预览模态框是打开的，也要刷新它
+                  if ($('#fileSelectModal').hasClass('show')) {
+                    this.showFileManagerNamingPreview(this.fileManager.currentFolder);
                   }
                 } else {
                   alert(response.data.message || '重命名失败');
@@ -4465,13 +4675,13 @@
               });
           }
         },
-        switchNamingMode() {
-          // 不再切换命名模式，而是显示命名预览模态框
+        previewAndRename() {
+          // 显示文件整理页面的命名预览模态框
           this.showFileManagerNamingPreview();
         },
         
         showFileManagerNamingPreview(folderId) {
-          // 使用文件选择模态框，但设置为预览模式
+          // 显示文件整理页面的命名预览模态框（区别于任务配置的命名预览）
           this.fileSelect.selectShare = false;
           this.fileSelect.selectDir = true;
           this.fileSelect.previewRegex = true;
@@ -4510,7 +4720,9 @@
               include_folders: this.fileManager.include_folders,
               filterwords: this.fileManager.filterwords,
               // 添加页面大小参数，获取所有文件
-              page_size: 99999
+              page_size: 99999,
+              // 添加账号索引参数，使用文件整理页面选中的账号
+              account_index: this.fileManager.selectedAccountIndex
             }
           })
           .then(response => {
@@ -4528,7 +4740,11 @@
                   page_size: 99999,
                   page: 1,
                   // 同时添加文件夹包含参数
-                  include_folders: this.fileManager.include_folders
+                  include_folders: this.fileManager.include_folders,
+                  // 添加账号索引参数，使用文件整理页面选中的账号
+                  account_index: this.fileManager.selectedAccountIndex,
+                  // 强制刷新缓存
+                  force_refresh: true
                 }
               })
               .then(listResponse => {
@@ -4599,85 +4815,8 @@
             this.modalLoading = false;
           });
         },
-        showBatchRenameModal() {
-          this.batchRename.loading = true;
-          this.batchRename.results = [];
-          this.batchRename.errors = [];
-          
-          // 设置命名模式
-          if (this.fileManager.use_sequence_naming) {
-            this.batchRename.namingMode = 'sequence';
-          } else if (this.fileManager.use_episode_naming) {
-            this.batchRename.namingMode = 'episode';
-          } else {
-            this.batchRename.namingMode = 'regex';
-          }
-          
-          // 调用后端API获取预览结果
-          const params = {
-            folder_id: this.fileManager.currentFolder,
-            pattern: this.fileManager.pattern,
-            replace: this.fileManager.replace,
-            naming_mode: this.batchRename.namingMode,
-            include_folders: this.fileManager.include_folders,
-            filterwords: this.fileManager.filterwords
-          };
-          
-          axios.get('/preview_rename', { params })
-            .then(response => {
-              if (response.data.success) {
-                this.batchRename.files = response.data.data.map(file => ({
-                  oldName: file.original_name,
-                  newName: file.new_name,
-                  fileId: file.file_id
-                }));
-              } else {
-                alert(response.data.message || '预览重命名失败');
-              }
-              this.batchRename.loading = false;
-              $('#batchRenameModal').modal('show');
-            })
-            .catch(error => {
-              console.error('预览重命名失败:', error);
-              alert('预览重命名失败，请检查命名规则是否正确');
-              this.batchRename.loading = false;
-            });
-        },
-        confirmBatchRename() {
-          this.batchRename.loading = true;
-          
-          // 发送批量重命名请求
-          const params = {
-            folder_id: this.fileManager.currentFolder,
-            pattern: this.fileManager.pattern,
-            replace: this.fileManager.replace,
-            naming_mode: this.batchRename.namingMode,
-            include_folders: this.fileManager.include_folders,
-            filterwords: this.fileManager.filterwords,
-            files: this.batchRename.files.filter(file => file.newName).map(file => ({
-              file_id: file.fileId,
-              new_name: file.newName
-            }))
-          };
-          
-          axios.post('/batch_rename', params)
-            .then(response => {
-              if (response.data.success) {
-                this.showToast('批量重命名成功');
-                $('#batchRenameModal').modal('hide');
-                // 刷新文件列表
-                this.loadFileList(this.fileManager.currentFolder);
-              } else {
-                alert(response.data.message || '批量重命名失败');
-              }
-              this.batchRename.loading = false;
-            })
-            .catch(error => {
-              console.error('批量重命名失败:', error);
-              alert('批量重命名失败');
-              this.batchRename.loading = false;
-            });
-        },
+        // showBatchRenameModal方法已删除，功能已整合到showFileManagerNamingPreview中
+        // confirmBatchRename方法已删除，功能已整合到applyPreviewRename中
         deleteFile(file) {
           if (confirm(`确定要删除${file.dir ? '文件夹' : '文件'} "${file.file_name}" 吗？`)) {
             // 获取当前路径作为save_path参数
@@ -4686,21 +4825,22 @@
               save_path = this.fileManager.paths.map(item => item.name).join("/");
             }
             
-            axios.post('/delete_file', { 
-              fid: file.fid, 
-              file_name: file.file_name, 
-              delete_records: false, 
-              save_path: save_path 
+            axios.post('/delete_file', {
+              fid: file.fid,
+              file_name: file.file_name,
+              delete_records: false,
+              save_path: save_path,
+              account_index: this.fileManager.selectedAccountIndex
             })
               .then(response => {
                 if (response.data.code === 0) {
                   this.showToast('成功删除 1 个项目');
-                  // 从列表中移除已删除的文件
-                  this.fileManager.fileList = this.fileManager.fileList.filter(f => f.fid !== file.fid);
-                  // 更新总数
-                  this.fileManager.total -= 1;
-                  // 从选中列表中移除
-                  this.fileManager.selectedFiles = this.fileManager.selectedFiles.filter(id => id !== file.fid);
+                  // 刷新文件列表以确保缓存同步
+                  this.refreshCurrentFolderCache();
+                  // 如果命名预览模态框是打开的，也要刷新它
+                  if ($('#fileSelectModal').hasClass('show')) {
+                    this.showFileManagerNamingPreview(this.fileManager.currentFolder);
+                  }
                 } else {
                   alert(response.data.message || '删除失败');
                 }
@@ -4714,13 +4854,14 @@
         loadFileList(folderId) {
           this.fileManager.loading = true;
           this.fileManager.currentFolder = folderId || 'root';
-          
+
           const params = {
             folder_id: folderId || 'root',
             sort_by: this.fileManager.sortBy,
             order: this.fileManager.sortOrder,
             page_size: this.fileManager.pageSize,
-            page: this.fileManager.currentPage
+            page: this.fileManager.currentPage,
+            account_index: this.fileManager.selectedAccountIndex
           };
           
           axios.get('/file_list', { params })
@@ -4795,8 +4936,8 @@
             }
           }
           
-          // 保存当前目录到localStorage
-          localStorage.setItem('quarkAutoSave_fileManagerLastFolder', folderId);
+          // 保存当前目录到localStorage（为每个账号单独保存）
+          localStorage.setItem(`quarkAutoSave_fileManagerLastFolder_${this.fileManager.selectedAccountIndex}`, folderId);
           
           // 重置页码并加载新文件夹内容，不显示加载动画
           this.fileManager.currentPage = 1;
@@ -4806,22 +4947,23 @@
         // 添加一个不显示加载动画的文件列表加载方法
         loadFileListWithoutLoading(folderId) {
           this.fileManager.currentFolder = folderId || 'root';
-          
+
           // 从localStorage读取分页大小设置（仅在初始化时使用）
           // 在changeFileManagerPageSize方法中，我们已经确保了正确的执行顺序
           const savedFileManagerPageSize = localStorage.getItem('quarkAutoSave_fileManagerPageSize');
           if (savedFileManagerPageSize && this.fileManager.pageSize === 15) { // 只在默认值时读取
             this.fileManager.pageSize = savedFileManagerPageSize === 'all' ? 99999 : parseInt(savedFileManagerPageSize);
           }
-          
+
           const params = {
             folder_id: folderId || 'root',
             sort_by: this.fileManager.sortBy,
             order: this.fileManager.sortOrder,
             page_size: this.fileManager.pageSize,
-            page: this.fileManager.currentPage
+            page: this.fileManager.currentPage,
+            account_index: this.fileManager.selectedAccountIndex
           };
-          
+
           axios.get('/file_list', { params })
             .then(response => {
               if (response.data.success) {
@@ -4833,7 +4975,7 @@
               } else {
                 console.error('获取文件列表失败:', response.data.message);
               }
-              
+
               // 检测当前的命名模式
               this.detectFileManagerNamingMode();
             })
@@ -4841,6 +4983,55 @@
               console.error('获取文件列表失败:', error);
             });
         },
+
+        // 添加带fallback机制的文件列表加载方法，用于账号切换
+        loadFileListWithFallback(folderId) {
+          this.fileManager.currentFolder = folderId || 'root';
+
+          const params = {
+            folder_id: folderId || 'root',
+            sort_by: this.fileManager.sortBy,
+            order: this.fileManager.sortOrder,
+            page_size: this.fileManager.pageSize,
+            page: this.fileManager.currentPage,
+            account_index: this.fileManager.selectedAccountIndex
+          };
+
+          axios.get('/file_list', { params })
+            .then(response => {
+              if (response.data.success) {
+                this.fileManager.fileList = response.data.data.list;
+                this.fileManager.total = response.data.data.total;
+                this.fileManager.totalPages = Math.ceil(response.data.data.total / this.fileManager.pageSize);
+                this.fileManager.paths = response.data.data.paths || [];
+                this.fileManager.gotoPage = this.fileManager.currentPage;
+
+                // 检测当前的命名模式
+                this.detectFileManagerNamingMode();
+              } else {
+                // 如果获取文件列表失败，可能是目录在新账号中不存在
+                console.warn('当前目录在新账号中不存在，自动切换到根目录:', response.data.message);
+                this.fallbackToRoot();
+              }
+            })
+            .catch(error => {
+              console.error('获取文件列表失败，自动切换到根目录:', error);
+              this.fallbackToRoot();
+            });
+        },
+
+        // fallback到根目录的方法
+        fallbackToRoot() {
+          this.fileManager.currentFolder = 'root';
+          this.fileManager.paths = [];
+          this.fileManager.currentPage = 1;
+
+          // 更新localStorage中的当前目录（为每个账号单独保存）
+          localStorage.setItem(`quarkAutoSave_fileManagerLastFolder_${this.fileManager.selectedAccountIndex}`, 'root');
+
+          // 重新加载根目录
+          this.loadFileListWithoutLoading('root');
+        },
         getVisibleFolderPageNumbers() {
           const current = parseInt(this.fileManager.currentPage) || 1;
           const total = parseInt(this.fileManager.totalPages) || 1;
@@ -4876,47 +5067,7 @@
           
           return range;
         },
-        cancelBatchRename() {
-          this.batchRename.loading = false;
-          this.batchRename.results = [];
-          this.batchRename.errors = [];
-          $('#batchRenameModal').modal('hide');
-        },
-        applyBatchRename() {
-          this.batchRename.loading = true;
-          
-          // 发送批量重命名请求
-          const params = {
-            folder_id: this.fileManager.currentFolder,
-            pattern: this.fileManager.pattern,
-            replace: this.fileManager.replace,
-            naming_mode: this.batchRename.namingMode,
-            include_folders: this.fileManager.include_folders,
-            filterwords: this.fileManager.filterwords,
-            files: this.batchRename.files.filter(file => file.newName).map(file => ({
-              file_id: file.fileId,
-              new_name: file.newName
-            }))
-          };
-          
-          axios.post('/batch_rename', params)
-            .then(response => {
-              if (response.data.success) {
-                this.showToast('批量重命名成功');
-                $('#batchRenameModal').modal('hide');
-                // 刷新文件列表
-                this.loadFileList(this.fileManager.currentFolder);
-              } else {
-                alert(response.data.message || '批量重命名失败');
-              }
-              this.batchRename.loading = false;
-            })
-            .catch(error => {
-              console.error('批量重命名失败:', error);
-              alert('批量重命名失败');
-              this.batchRename.loading = false;
-            });
-        },
+        // cancelBatchRename和applyBatchRename方法已删除，功能已整合到fileSelectModal中
         handleFileManagerOutsideClick(event) {
           // 如果当前不是文件整理页面或者没有选中的文件，则不处理
           if (this.activeTab !== 'filemanager' || this.fileManager.selectedFiles.length === 0) {
@@ -4969,11 +5120,12 @@
               const fileObj = this.fileManager.fileList.find(file => file.fid === fid);
               const fileName = fileObj ? fileObj.file_name : '';
               
-              return axios.post('/delete_file', { 
-                fid: fid, 
-                file_name: fileName, 
-                delete_records: deleteRecords, 
-                save_path: save_path 
+              return axios.post('/delete_file', {
+                fid: fid,
+                file_name: fileName,
+                delete_records: deleteRecords,
+                save_path: save_path,
+                account_index: this.fileManager.selectedAccountIndex
               })
                 .then(response => {
                   return { fid: fid, success: response.data.code === 0, deleted_records: response.data.deleted_records || 0 };
@@ -4990,22 +5142,21 @@
                 const successCount = results.filter(r => r.success).length;
                 const failCount = results.length - successCount;
                 
-                // 从文件列表中移除成功删除的文件
-                const successfullyDeletedFids = results.filter(r => r.success).map(r => r.fid);
-                this.fileManager.fileList = this.fileManager.fileList.filter(item => !successfullyDeletedFids.includes(item.fid));
-                
-                // 更新总数
-                this.fileManager.total -= successCount;
-                
-                // 清空选中文件列表
-                this.fileManager.selectedFiles = [];
-                
                 // 显示结果
                 if (failCount > 0) {
                   alert(`成功删除 ${successCount} 个项目，${failCount} 个项目删除失败`);
                 } else {
                   this.showToast(`成功删除 ${successCount} 个项目`);
                 }
+
+                // 如果有成功删除的文件，刷新文件列表以确保缓存同步
+                if (successCount > 0) {
+                  this.refreshCurrentFolderCache();
+                  // 如果命名预览模态框是打开的，也要刷新它
+                  if ($('#fileSelectModal').hasClass('show')) {
+                    this.showFileManagerNamingPreview(this.fileManager.currentFolder);
+                  }
+                }
               });
           }
         },
@@ -5056,10 +5207,16 @@
               old_name: f.file_name // 传递原文件名，便于撤销
             }));
             const save_path = this.fileManager.currentFolder;
-            const response = await axios.post('/batch_rename', { files, save_path });
+            const response = await axios.post('/batch_rename', {
+              files,
+              save_path,
+              // 添加账号索引参数，使用文件整理页面选中的账号
+              account_index: this.fileManager.selectedAccountIndex
+            });
             if (response.data.success) {
               this.showToast(`成功重命名 ${response.data.success_count || files.length} 个项目`);
-              this.loadFileListWithoutLoading(this.fileManager.currentFolder);
+              // 强制刷新文件列表缓存
+              this.refreshCurrentFolderCache();
               $('#fileSelectModal').modal('hide');
               this.fileSelect.canUndoRename = true; // 重命名后立即可撤销
             } else {
@@ -5075,11 +5232,16 @@
           this.modalLoading = true;
           try {
             const save_path = this.fileManager.currentFolder;
-            const response = await axios.post('/undo_rename', { save_path });
+            const response = await axios.post('/undo_rename', {
+              save_path,
+              // 添加账号索引参数，使用文件整理页面选中的账号
+              account_index: this.fileManager.selectedAccountIndex
+            });
             if (response.data.success) {
               this.showToast(`成功撤销 ${response.data.success_count} 个项目重命名`);
               this.showFileManagerNamingPreview(save_path);
-              this.loadFileListWithoutLoading(this.fileManager.currentFolder);
+              // 强制刷新文件列表缓存
+              this.refreshCurrentFolderCache();
               // 撤销后如无可撤销项再设为false（由showFileManagerNamingPreview刷新）
             } else {
               this.showToast(response.data.message || '撤销失败');
diff --git a/quark_auto_save.py b/quark_auto_save.py
index 83cbf69..21cfabb 100644
--- a/quark_auto_save.py
+++ b/quark_auto_save.py
@@ -932,6 +932,9 @@ class Quark:
     def ls_dir(self, pdir_fid, **kwargs):
         file_list = []
         page = 1
+        # 优化：增加每页大小，减少API调用次数
+        page_size = kwargs.get("page_size", 200)  # 从50增加到200
+
         while True:
             url = f"{self.BASE_URL}/1/clouddrive/file/sort"
             querystring = {
@@ -940,7 +943,7 @@ class Quark:
                 "uc_param_str": "",
                 "pdir_fid": pdir_fid,
                 "_page": page,
-                "_size": "50",
+                "_size": str(page_size),
                 "_fetch_total": "1",
                 "_fetch_sub_dirs": "0",
                 "_sort": "file_type:asc,updated_at:desc",