diff --git a/application/api/controller/EmailClient.php b/application/api/controller/EmailClient.php
index c0ceccd..e544eba 100644
--- a/application/api/controller/EmailClient.php
+++ b/application/api/controller/EmailClient.php
@@ -1082,6 +1082,7 @@ class EmailClient extends Base
      *  - min_interval, max_interval (seconds between emails)
      *  - max_bounce_rate (%), no_repeat_days
      *  - send_start_hour, send_end_hour (UTC, default 8-22)
+     *  - send_date (Y-m-d，计划发送日期；有则「今日准备明日发」由定时任务处理，无则创建后需手动 startTask)
      */
     public function createTask()
     {
@@ -1097,16 +1098,17 @@ class EmailClient extends Base
         $minInterval    = intval($this->request->param('min_interval', 30));
         $maxInterval    = intval($this->request->param('max_interval', 60));
         $maxBounceRate  = intval($this->request->param('max_bounce_rate', 5));
-        $noRepeatDays   = intval($this->request->param('no_repeat_days', 30));
+        $noRepeatDays   = intval($this->request->param('no_repeat_days', 7));
         $sendStartHour  = intval($this->request->param('send_start_hour', 8));
         $sendEndHour    = intval($this->request->param('send_end_hour', 22));
+        $sendDate       = trim($this->request->param('send_date', date("Y-m-d",strtotime('+1 day'))));
 
         if (!$journalId || !$templateId) {
             return jsonError('journal_id and template_id are required');
         }
-        if (empty($expertIds) && empty($field)) {
-            return jsonError('expert_ids or field is required');
-        }
+//        if (empty($expertIds) && empty($field)) {
+//            return jsonError('expert_ids or field is required');
+//        }
 
         $tpl = Db::name('mail_template')
             ->where('template_id', $templateId)
@@ -1123,36 +1125,88 @@ class EmailClient extends Base
 
         $experts = [];
         if (!empty($expertIds)) {
+            // 显式点名的专家，只按 state 过滤，ltime 由外部自行控制
             $ids = array_map('intval', explode(',', $expertIds));
-            $experts = Db::name('expert')->where('expert_id', 'in', $ids)->where('state', 0)->select();
+            $experts = Db::name('expert')
+                ->where('expert_id', 'in', $ids)
+                ->where('state', 0)
+                ->select();
         } else {
+            // 一般情况：不传 expert_ids，根据期刊实际领域自动选择专家
+            $journal = Db::name('journal')->where('journal_id', $journalId)->find();
+            if (!$journal || empty($journal['issn'])) {
+                return jsonError('Journal or ISSN not found');
+            }
+
+            // 期刊绑定的领域（major_title），与 dailyFetchAll 保持一致
+            $majors = Db::name('major_to_journal')
+                ->alias('mtj')
+                ->join('t_major m', 'm.major_id = mtj.major_id', 'left')
+                ->where('mtj.journal_issn', $journal['issn'])
+                ->where('mtj.mtj_state', 0)
+                ->where('m.major_state', 0)
+                ->column('m.major_title');
+
+            $majors = array_unique(array_filter($majors));
+
             $query = Db::name('expert')->alias('e')
                 ->join('t_expert_field ef', 'e.expert_id = ef.expert_id')
                 ->where('e.state', 0)
                 ->where('ef.state', 0);
 
-            if ($field) {
-                $query->where('ef.field', 'like', '%' . $field . '%');
-            }
-            if ($majorId) {
-                $query->where('ef.major_id', $majorId);
-            }
-
-            $experts = $query->field('e.*')->group('e.expert_id')->select();
-        }
-
-        if ($noRepeatDays > 0) {
-            $cutoff = time() - ($noRepeatDays * 86400);
-            $experts = array_filter($experts, function ($e) use ($cutoff) {
-                return intval($e['ltime']) < $cutoff;
+            // 领域条件：
+            // 1) 若前端显式传了 field/major_id，则优先按传入条件过滤
+            // 2) 否则，按期刊绑定领域（major_title）在 ef.field 中模糊匹配
+            $query->where(function ($q) use ($field, $majorId, $majors) {
+                if ($field !== '') {
+                    $q->where('ef.field', 'like', '%' . $field . '%');
+                } elseif ($majorId > 0) {
+                    $q->where('ef.major_id', $majorId);
+                } elseif (!empty($majors)) {
+                    $q->where(function ($qq) use ($majors) {
+                        foreach ($majors as $idx => $title) {
+                            $title = trim($title);
+                            if ($title === '') {
+                                continue;
+                            }
+                            if ($idx === 0) {
+                                $qq->where('ef.field', 'like', '%' . $title . '%');
+                            } else {
+                                $qq->whereOr('ef.field', 'like', '%' . $title . '%');
+                            }
+                        }
+                    });
+                }
             });
-            $experts = array_values($experts);
+
+            // 不频繁发送：在 SQL 中直接使用 ltime + no_repeat_days 过滤
+            if ($noRepeatDays > 0) {
+                $cutoff = time() - ($noRepeatDays * 86400);
+                $query->where(function ($q) use ($cutoff) {
+                    $q->where('e.ltime', 0)->whereOr('e.ltime', '<', $cutoff);
+                });
+            }
+
+            // 去重同一个专家
+            $experts = $query
+                ->field('e.*')
+                ->group('e.expert_id')
+                ->limit(100)
+                ->select();
         }
 
         if (empty($experts)) {
             return jsonError('No eligible experts found (all may have been promoted recently)');
         }
 
+        $sendDateVal = null;
+        if ($sendDate !== '') {
+            $ts = strtotime($sendDate);
+            if ($ts !== false) {
+                $sendDateVal = date('Y-m-d', $ts);
+            }
+        }
+
         $now = time();
         $taskId = Db::name('promotion_task')->insertGetId([
             'journal_id'      => $journalId,
@@ -1172,6 +1226,7 @@ class EmailClient extends Base
             'no_repeat_days'  => $noRepeatDays,
             'send_start_hour' => $sendStartHour,
             'send_end_hour'   => $sendEndHour,
+            'send_date'       => $sendDateVal,
             'ctime'           => $now,
             'utime'           => $now,
         ]);
@@ -1192,14 +1247,85 @@ class EmailClient extends Base
         }
         Db::name('promotion_email_log')->insertAll($logs);
 
+        $msg = 'Task created, call startTask to begin sending';
+        if ($sendDateVal) {
+            $msg = 'Task created for send_date=' . $sendDateVal . ', will be prepared by cron and triggered on that day';
+        }
         return jsonSuccess([
             'task_id'     => $taskId,
             'total_count' => count($experts),
             'state'       => 0,
-            'msg'         => 'Task created, call startTask to begin sending',
+            'send_date'   => $sendDateVal,
+            'msg'         => $msg,
         ]);
     }
 
+    /**
+     * 为单个任务预生成邮件（可手动或测试用）
+     * Params: task_id
+     */
+    public function prepareTask()
+    {
+        $taskId = intval($this->request->param('task_id', 0));
+        if (!$taskId) {
+            return jsonError('task_id is required');
+        }
+
+        $service = new PromotionService();
+        $result  = $service->prepareTask($taskId);
+
+        if ($result['error']) {
+            return jsonError($result['error']);
+        }
+        return jsonSuccess($result);
+    }
+
+    /**
+     * 定时任务：为指定日期的任务预生成邮件（默认明天）
+     * 建议每天 22:00 执行：curl .../EmailClient/prepareTasksForDate 或 prepareTasksForDate?date=2026-03-12
+     */
+    public function prepareTasksForDate()
+    {
+        $date = trim($this->request->param('date', ''));
+        if ($date === '') {
+            $date = date('Y-m-d', strtotime('+1 day'));
+        } else {
+            $ts = strtotime($date);
+            if ($ts === false) {
+                return jsonError('date invalid, use Y-m-d');
+            }
+            $date = date('Y-m-d', $ts);
+        }
+
+        $service = new PromotionService();
+        $result  = $service->prepareTasksForDate($date);
+
+        return jsonSuccess($result);
+    }
+
+    /**
+     * 定时任务：触发指定日期的已准备任务开始发送（默认今天）
+     * 建议每天 8:00 执行：curl .../EmailClient/triggerTasksForDate 或 triggerTasksForDate?date=2026-03-12
+     */
+    public function triggerTasksForDate()
+    {
+        $date = trim($this->request->param('date', ''));
+        if ($date === '') {
+            $date = date('Y-m-d');
+        } else {
+            $ts = strtotime($date);
+            if ($ts === false) {
+                return jsonError('date invalid, use Y-m-d');
+            }
+            $date = date('Y-m-d', $ts);
+        }
+
+        $service = new PromotionService();
+        $result  = $service->startTasksForDate($date);
+
+        return jsonSuccess($result);
+    }
+
     /**
      * Start or resume a promotion task
      */
@@ -1223,6 +1349,10 @@ class EmailClient extends Base
         if ($task['state'] == 1) {
             return jsonError('Task is already running');
         }
+        // state=0 草稿 或 state=5 已准备 均可启动
+        if ($task['state'] != 0 && $task['state'] != 5) {
+            return jsonError('Task can only be started when state is draft(0) or prepared(5), current: ' . $task['state']);
+        }
 
         Db::name('promotion_task')->where('task_id', $taskId)->update([
             'state' => 1,
diff --git a/application/api/controller/ExpertManage.php b/application/api/controller/ExpertManage.php
new file mode 100644
index 0000000..8c9983f
--- /dev/null
+++ b/application/api/controller/ExpertManage.php
@@ -0,0 +1,493 @@
+<?php
+
+namespace app\api\controller;
+
+use think\Db;
+
+class ExpertManage extends Base
+{
+    private $stateMap = [
+        0 => '待联系',
+        1 => '已发邮件',
+        2 => '已回复',
+        3 => '已投稿',
+        4 => '退信/无效',
+        5 => '黑名单(退订)',
+    ];
+
+    public function __construct(\think\Request $request = null)
+    {
+        parent::__construct($request);
+    }
+
+    /**
+     * 专家列表（支持多条件筛选 + 分页）
+     *
+     * 参数:
+     *   keyword    - 搜索姓名/邮箱/单位
+     *   field      - 按领域关键词筛选
+     *   major_id   - 按学科ID筛选
+     *   state      - 状态筛选 (0-5, 传-1或不传则不过滤)
+     *   source     - 来源筛选
+     *   pageIndex  - 页码 (默认1)
+     *   pageSize   - 每页条数 (默认20)
+     */
+    public function getList()
+    {
+        $data     = $this->request->param();
+        $keyword  = trim(isset($data['keyword']) ? $data['keyword'] : '');
+        $field    = trim(isset($data['field']) ? $data['field'] : '');
+        $majorId  = intval(isset($data['major_id']) ? $data['major_id'] : 0);
+        $state    = isset($data['state']) ? $data['state'] : '-1';
+        $source   = trim(isset($data['source']) ? $data['source'] : '');
+        $page     = max(1, intval(isset($data['pageIndex']) ? $data['pageIndex'] : 1));
+        $pageSize = max(1, intval(isset($data['pageSize']) ? $data['pageSize'] : 20));
+
+        $query = Db::name('expert')->alias('e');
+        $needJoin = ($field !== '' || $majorId > 0);
+
+        if ($needJoin) {
+            $query->join('t_expert_field ef', 'ef.expert_id = e.expert_id AND ef.state = 0', 'inner');
+            if ($field !== '') {
+                $query->where('ef.field', 'like', '%' . $field . '%');
+            }
+            if ($majorId > 0) {
+                $query->where('ef.major_id', $majorId);
+            }
+            $query->group('e.expert_id');
+        }
+
+        if ($state !== '-1' && $state !== '') {
+            $query->where('e.state', intval($state));
+        }
+        if ($keyword !== '') {
+            $query->where('e.name|e.email|e.affiliation', 'like', '%' . $keyword . '%');
+        }
+        if ($source !== '') {
+            $query->where('e.source', $source);
+        }
+
+        $countQuery = clone $query;
+        $total = $countQuery->distinct('e.expert_id')->count();
+
+        $list = $query
+            ->field('e.*')
+            ->order('e.ctime desc')
+            ->page($page, $pageSize)
+            ->select();
+
+        foreach ($list as &$item) {
+            $item['fields'] = Db::name('expert_field')
+                ->where('expert_id', $item['expert_id'])
+                ->where('state', 0)
+                ->select();
+            $item['state_text'] = isset($this->stateMap[$item['state']]) ? $this->stateMap[$item['state']] : '未知';
+            $item['ctime_text'] = $item['ctime'] ? date('Y-m-d H:i:s', $item['ctime']) : '';
+            $item['ltime_text'] = $item['ltime'] ? date('Y-m-d H:i:s', $item['ltime']) : '';
+        }
+
+        return jsonSuccess([
+            'list'       => $list,
+            'total'      => $total,
+            'pageIndex'  => $page,
+            'pageSize'   => $pageSize,
+            'totalPages' => $total > 0 ? ceil($total / $pageSize) : 0,
+        ]);
+    }
+
+    /**
+     * 获取专家详情（含所有领域）
+     */
+    public function getDetail()
+    {
+        $expertId = intval($this->request->param('expert_id', 0));
+        if (!$expertId) {
+            return jsonError('expert_id is required');
+        }
+
+        $expert = Db::name('expert')->where('expert_id', $expertId)->find();
+        if (!$expert) {
+            return jsonError('专家不存在');
+        }
+
+        $expert['fields'] = Db::name('expert_field')
+            ->where('expert_id', $expertId)
+            ->where('state', 0)
+            ->select();
+        $expert['state_text'] = isset($this->stateMap[$expert['state']]) ? $this->stateMap[$expert['state']] : '未知';
+        $expert['ctime_text'] = $expert['ctime'] ? date('Y-m-d H:i:s', $expert['ctime']) : '';
+        $expert['ltime_text'] = $expert['ltime'] ? date('Y-m-d H:i:s', $expert['ltime']) : '';
+
+        return jsonSuccess($expert);
+    }
+
+    /**
+     * 添加专家
+     */
+    public function addExpert()
+    {
+        $data = $this->request->post();
+        $name  = trim(isset($data['name']) ? $data['name'] : '');
+        $email = trim(isset($data['email']) ? $data['email'] : '');
+
+        if ($name === '' || $email === '') {
+            return jsonError('name和email不能为空');
+        }
+
+        $exists = Db::name('expert')->where('email', $email)->find();
+        if ($exists) {
+            return jsonError('该邮箱已存在，expert_id=' . $exists['expert_id']);
+        }
+
+        $insert = [
+            'name'        => $name,
+            'email'       => $email,
+            'affiliation' => trim(isset($data['affiliation']) ? $data['affiliation'] : ''),
+            'source'      => trim(isset($data['source']) ? $data['source'] : 'manual'),
+            'ctime'       => time(),
+            'ltime'       => 0,
+            'state'       => 0,
+        ];
+
+        $expertId = Db::name('expert')->insertGetId($insert);
+
+        if (!empty($data['fields'])) {
+            $this->saveExpertFields($expertId, $data['fields']);
+        }
+
+        return jsonSuccess(['expert_id' => $expertId]);
+    }
+
+    /**
+     * 编辑专家
+     */
+    public function editExpert()
+    {
+        $data     = $this->request->post();
+        $expertId = intval(isset($data['expert_id']) ? $data['expert_id'] : 0);
+        if (!$expertId) {
+            return jsonError('expert_id is required');
+        }
+
+        $expert = Db::name('expert')->where('expert_id', $expertId)->find();
+        if (!$expert) {
+            return jsonError('专家不存在');
+        }
+
+        $update = [];
+        if (isset($data['name']))        $update['name']        = trim($data['name']);
+        if (isset($data['email']))       $update['email']       = trim($data['email']);
+        if (isset($data['affiliation'])) $update['affiliation'] = trim($data['affiliation']);
+        if (isset($data['source']))      $update['source']      = trim($data['source']);
+        if (isset($data['state']))       $update['state']       = intval($data['state']);
+
+        if (!empty($update)) {
+            Db::name('expert')->where('expert_id', $expertId)->update($update);
+        }
+
+        if (isset($data['fields'])) {
+            Db::name('expert_field')->where('expert_id', $expertId)->where('state', 0)->update(['state' => 1]);
+            if (!empty($data['fields'])) {
+                $this->saveExpertFields($expertId, $data['fields']);
+            }
+        }
+
+        return jsonSuccess(['expert_id' => $expertId]);
+    }
+
+    /**
+     * 批量修改状态
+     *
+     * 参数:
+     *   expert_ids - 逗号分隔的ID列表 "1,2,3"
+     *   state      - 目标状态 0-5
+     */
+    public function updateState()
+    {
+        $data      = $this->request->post();
+        $expertIds = isset($data['expert_ids']) ? $data['expert_ids'] : '';
+        $state     = intval(isset($data['state']) ? $data['state'] : -1);
+
+        if (empty($expertIds)) {
+            return jsonError('expert_ids is required');
+        }
+        if ($state < 0 || $state > 5) {
+            return jsonError('state取值范围0-5');
+        }
+
+        $ids   = array_map('intval', explode(',', $expertIds));
+        $count = Db::name('expert')->where('expert_id', 'in', $ids)->update(['state' => $state]);
+
+        return jsonSuccess(['updated' => $count]);
+    }
+
+    /**
+     * 删除专家（软删除，设为黑名单状态5）
+     *
+     * 参数:
+     *   expert_ids - 逗号分隔的ID列表
+     *   hard       - 传1则物理删除
+     */
+    public function deleteExpert()
+    {
+        $data      = $this->request->post();
+        $expertIds = isset($data['expert_ids']) ? $data['expert_ids'] : '';
+        $hard      = intval(isset($data['hard']) ? $data['hard'] : 0);
+
+        if (empty($expertIds)) {
+            return jsonError('expert_ids is required');
+        }
+
+        $ids = array_map('intval', explode(',', $expertIds));
+
+        if ($hard) {
+            Db::name('expert_field')->where('expert_id', 'in', $ids)->delete();
+            $count = Db::name('expert')->where('expert_id', 'in', $ids)->delete();
+        } else {
+            $count = Db::name('expert')->where('expert_id', 'in', $ids)->update(['state' => 5]);
+        }
+
+        return jsonSuccess(['affected' => $count]);
+    }
+
+    /**
+     * 给专家添加领域
+     */
+    public function addField()
+    {
+        $data     = $this->request->post();
+        $expertId = intval(isset($data['expert_id']) ? $data['expert_id'] : 0);
+        $majorId  = intval(isset($data['major_id']) ? $data['major_id'] : 0);
+        $field    = trim(isset($data['field']) ? $data['field'] : '');
+
+        if (!$expertId || $field === '') {
+            return jsonError('expert_id和field不能为空');
+        }
+
+        $exists = Db::name('expert_field')
+            ->where('expert_id', $expertId)
+            ->where('field', $field)
+            ->where('state', 0)
+            ->find();
+        if ($exists) {
+            return jsonError('该领域已存在');
+        }
+
+        $id = Db::name('expert_field')->insertGetId([
+            'expert_id' => $expertId,
+            'major_id'  => $majorId,
+            'field'     => $field,
+            'state'     => 0,
+        ]);
+
+        return jsonSuccess(['expert_field_id' => $id]);
+    }
+
+    /**
+     * 删除领域（软删除）
+     */
+    public function removeField()
+    {
+        $efId = intval($this->request->param('expert_field_id', 0));
+        if (!$efId) {
+            return jsonError('expert_field_id is required');
+        }
+
+        Db::name('expert_field')->where('expert_field_id', $efId)->update(['state' => 1]);
+
+        return jsonSuccess([]);
+    }
+
+    /**
+     * 获取所有不重复的领域列表（用于筛选下拉框）
+     */
+    public function getFieldOptions()
+    {
+        $list = Db::name('expert_field')
+            ->where('state', 0)
+            ->group('field')
+            ->column('field');
+
+        return jsonSuccess($list);
+    }
+
+    /**
+     * 获取所有来源列表（用于筛选下拉框）
+     */
+    public function getSourceOptions()
+    {
+        $list = Db::name('expert')
+            ->where('source', '<>', '')
+            ->group('source')
+            ->column('source');
+
+        return jsonSuccess($list);
+    }
+
+    /**
+     * 导出某个领域的专家为Excel
+     *
+     * 参数:
+     *   field      - 领域关键词（必填）
+     *   major_id   - 学科ID（可选）
+     *   state      - 状态筛选（可选，默认不过滤）
+     *   keyword    - 搜索姓名/邮箱/单位
+     *   source     - 来源筛选
+     */
+    public function exportExcel()
+    {
+        $data    = $this->request->param();
+        $field   = trim(isset($data['field']) ? $data['field'] : '');
+        $majorId = intval(isset($data['major_id']) ? $data['major_id'] : 0);
+        $state   = isset($data['state']) ? $data['state'] : '-1';
+        $keyword = trim(isset($data['keyword']) ? $data['keyword'] : '');
+        $source  = trim(isset($data['source']) ? $data['source'] : '');
+
+        $query = Db::name('expert')->alias('e');
+
+        if ($field !== '' || $majorId > 0) {
+            $query->join('t_expert_field ef', 'ef.expert_id = e.expert_id AND ef.state = 0', 'inner');
+            if ($field !== '') {
+                $query->where('ef.field', 'like', '%' . $field . '%');
+            }
+            if ($majorId > 0) {
+                $query->where('ef.major_id', $majorId);
+            }
+            $query->group('e.expert_id');
+        }
+
+        if ($state !== '-1' && $state !== '') {
+            $query->where('e.state', intval($state));
+        }
+        if ($keyword !== '') {
+            $query->where('e.name|e.email|e.affiliation', 'like', '%' . $keyword . '%');
+        }
+        if ($source !== '') {
+            $query->where('e.source', $source);
+        }
+
+        $list = $query->field('e.*')->order('e.ctime desc')->select();
+
+        if (empty($list)) {
+            return jsonError('没有符合条件的数据可导出');
+        }
+
+        $expertIds = array_column($list, 'expert_id');
+        $allFields = Db::name('expert_field')
+            ->where('expert_id', 'in', $expertIds)
+            ->where('state', 0)
+            ->select();
+
+        $fieldMap = [];
+        foreach ($allFields as $f) {
+            $fieldMap[$f['expert_id']][] = $f['field'];
+        }
+
+        vendor("PHPExcel.PHPExcel");
+
+        $objPHPExcel = new \PHPExcel();
+        $sheet = $objPHPExcel->getActiveSheet();
+        $sheet->setTitle('Expert List');
+
+        $headers = [
+            'A' => '#',
+            'B' => 'Name',
+            'C' => 'Email',
+            'D' => 'Affiliation',
+            'E' => 'Source',
+            'F' => 'Fields',
+            'G' => 'State',
+            'H' => 'Add Time',
+            'I' => 'Last Promotion',
+        ];
+        foreach ($headers as $col => $header) {
+            $sheet->setCellValue($col . '1', $header);
+        }
+
+        $headerStyle = [
+            'font'      => ['bold' => true, 'color' => ['rgb' => 'FFFFFF']],
+            'fill'      => ['type' => \PHPExcel_Style_Fill::FILL_SOLID, 'startcolor' => ['rgb' => '4472C4']],
+            'alignment' => ['horizontal' => \PHPExcel_Style_Alignment::HORIZONTAL_CENTER],
+        ];
+        $sheet->getStyle('A1:I1')->applyFromArray($headerStyle);
+
+        foreach ($list as $i => $item) {
+            $row = $i + 2;
+            $fields = isset($fieldMap[$item['expert_id']]) ? implode(', ', $fieldMap[$item['expert_id']]) : '';
+            $stateText = isset($this->stateMap[$item['state']]) ? $this->stateMap[$item['state']] : '未知';
+
+            $sheet->setCellValue('A' . $row, $i + 1);
+            $sheet->setCellValue('B' . $row, $item['name']);
+            $sheet->setCellValueExplicit('C' . $row, $item['email'], \PHPExcel_Cell_DataType::TYPE_STRING);
+            $sheet->setCellValue('D' . $row, $item['affiliation']);
+            $sheet->setCellValue('E' . $row, $item['source']);
+            $sheet->setCellValue('F' . $row, $fields);
+            $sheet->setCellValue('G' . $row, $stateText);
+            $sheet->setCellValue('H' . $row, $item['ctime'] ? date('Y-m-d H:i:s', $item['ctime']) : '');
+            $sheet->setCellValue('I' . $row, $item['ltime'] ? date('Y-m-d H:i:s', $item['ltime']) : '');
+        }
+
+        $sheet->getColumnDimension('A')->setWidth(6);
+        $sheet->getColumnDimension('B')->setWidth(25);
+        $sheet->getColumnDimension('C')->setWidth(35);
+        $sheet->getColumnDimension('D')->setWidth(40);
+        $sheet->getColumnDimension('E')->setWidth(15);
+        $sheet->getColumnDimension('F')->setWidth(50);
+        $sheet->getColumnDimension('G')->setWidth(15);
+        $sheet->getColumnDimension('H')->setWidth(20);
+        $sheet->getColumnDimension('I')->setWidth(20);
+
+        $label = $field !== '' ? preg_replace('/[^a-zA-Z0-9_\x{4e00}-\x{9fa5}]/u', '_', $field) : 'all';
+        $filename = 'expert_' . $label . '_' . date('Ymd_His') . '.xlsx';
+
+        $dir = ROOT_PATH . 'public' . DS . 'exports';
+        if (!is_dir($dir)) {
+            mkdir($dir, 0777, true);
+        }
+
+        $filepath = $dir . DS . $filename;
+        $writer = \PHPExcel_IOFactory::createWriter($objPHPExcel, 'Excel2007');
+        $writer->save($filepath);
+
+        return jsonSuccess([
+            'file_url'  => '/exports/' . $filename,
+            'file_name' => $filename,
+            'count'     => count($list),
+        ]);
+    }
+
+    /**
+     * 批量保存专家领域
+     * @param int $expertId
+     * @param array $fields [{"major_id":1,"field":"xxx"}, ...]
+     */
+    private function saveExpertFields($expertId, $fields)
+    {
+        if (is_string($fields)) {
+            $fields = json_decode($fields, true);
+        }
+        if (!is_array($fields)) {
+            return;
+        }
+
+        foreach ($fields as $f) {
+            $majorId = intval(isset($f['major_id']) ? $f['major_id'] : 0);
+            $fieldName = trim(isset($f['field']) ? $f['field'] : '');
+            if ($fieldName === '') continue;
+
+            $exists = Db::name('expert_field')
+                ->where('expert_id', $expertId)
+                ->where('field', $fieldName)
+                ->where('state', 0)
+                ->find();
+            if ($exists) continue;
+
+            Db::name('expert_field')->insert([
+                'expert_id' => $expertId,
+                'major_id'  => $majorId,
+                'field'     => $fieldName,
+                'state'     => 0,
+            ]);
+        }
+    }
+}
diff --git a/application/api/controller/MailTemplate.php b/application/api/controller/MailTemplate.php
index 1021eab..aefb06b 100644
--- a/application/api/controller/MailTemplate.php
+++ b/application/api/controller/MailTemplate.php
@@ -118,6 +118,14 @@ class MailTemplate extends Base
         return jsonSuccess(['list' => $list]);
     }
 
+    public function listTemplatesAll(){
+        $list = Db::name('mail_template')
+            ->where('state', 0)
+            ->order('is_active desc, utime desc, template_id desc')
+            ->select();
+        return jsonSuccess(['list'=>$list]);
+    }
+
     /**
      * Create or update a global mail style
      * 当前 style 表字段：
diff --git a/application/common/ExpertFinderService.php b/application/common/ExpertFinderService.php
index 150f93e..f743db6 100644
--- a/application/common/ExpertFinderService.php
+++ b/application/common/ExpertFinderService.php
@@ -519,10 +519,11 @@ class ExpertFinderService
             ->where('state', 0)
             ->find();
         if ($exists) return 0;
-
+        $major = Db::name("major")->where("major_title",$field)->where("state",0)->find();
+        $major_id = $major ? $major['major_id'] : 0;
         Db::name('expert_field')->insert([
             'expert_id' => $expertId,
-            'major_id'  => 0,
+            'major_id'  => $major_id,
             'field'     => mb_substr($field, 0, 128),
             'state'     => 0,
         ]);
diff --git a/application/common/PromotionService.php b/application/common/PromotionService.php
index c9dfa1e..ca8db4f 100644
--- a/application/common/PromotionService.php
+++ b/application/common/PromotionService.php
@@ -80,33 +80,43 @@ class PromotionService
             return ['done' => false, 'reason' => 'no_smtp_quota', 'retry_in' => 600];
         }
 
-        $journal     = Db::name('journal')->where('journal_id', $task['journal_id'])->find();
-        $expertVars  = $this->buildExpertVars($expert);
-        $journalVars = $this->buildJournalVars($journal);
-        $vars        = array_merge($journalVars, $expertVars);
+        // 优先使用预生成内容；无则现场渲染
+        $subject = '';
+        $body    = '';
+        $hasPrepared = !empty($logEntry['subject_prepared']) && !empty($logEntry['body_prepared']);
 
-        $rendered = $this->renderFromTemplate(
-            $task['template_id'],
-            $task['journal_id'],
-            json_encode($vars, JSON_UNESCAPED_UNICODE),
-            $task['style_id']
-        );
+        if ($hasPrepared) {
+            $subject = $logEntry['subject_prepared'];
+            $body    = $logEntry['body_prepared'];
+        } else {
+            $journal     = Db::name('journal')->where('journal_id', $task['journal_id'])->find();
+            $expertVars  = $this->buildExpertVars($expert);
+            $journalVars = $this->buildJournalVars($journal);
+            $vars        = array_merge($journalVars, $expertVars);
 
-        if ($rendered['code'] !== 0) {
-            Db::name('promotion_email_log')->where('log_id', $logEntry['log_id'])->update([
-                'state'     => 2,
-                'error_msg' => 'Template render failed: ' . $rendered['msg'],
-                'send_time' => time(),
-            ]);
-            Db::name('promotion_task')->where('task_id', $taskId)->setInc('fail_count');
-            Db::name('promotion_task')->where('task_id', $taskId)->update(['utime' => time()]);
-            $this->enqueueNextEmail($taskId, 2);
-            return ['done' => false, 'failed' => $logEntry['email_to'], 'reason' => 'template_error'];
+            $rendered = $this->renderFromTemplate(
+                $task['template_id'],
+                $task['journal_id'],
+                json_encode($vars, JSON_UNESCAPED_UNICODE),
+                $task['style_id']
+            );
+
+            if ($rendered['code'] !== 0) {
+                Db::name('promotion_email_log')->where('log_id', $logEntry['log_id'])->update([
+                    'state'     => 2,
+                    'error_msg' => 'Template render failed: ' . $rendered['msg'],
+                    'send_time' => time(),
+                ]);
+                Db::name('promotion_task')->where('task_id', $taskId)->setInc('fail_count');
+                Db::name('promotion_task')->where('task_id', $taskId)->update(['utime' => time()]);
+                $this->enqueueNextEmail($taskId, 2);
+                return ['done' => false, 'failed' => $logEntry['email_to'], 'reason' => 'template_error'];
+            }
+
+            $subject = $rendered['data']['subject'];
+            $body    = $rendered['data']['body'];
         }
 
-        $subject = $rendered['data']['subject'];
-        $body    = $rendered['data']['body'];
-
         $result = $this->doSendEmail($account, $logEntry['email_to'], $subject, $body);
 
         $now = time();
@@ -144,6 +154,165 @@ class PromotionService
         ];
     }
 
+    // ==================== 准备与触发（今日准备、明日发送） ====================
+
+    /**
+     * 为指定任务预生成所有待发邮件的 subject/body，写入 log；完成后将任务置为 state=5（已准备）
+     * @param int $taskId
+     * @return array ['prepared' => int, 'failed' => int, 'error' => string|null]
+     */
+    public function prepareTask($taskId)
+    {
+        $task = Db::name('promotion_task')->where('task_id', $taskId)->find();
+        if (!$task) {
+            return ['prepared' => 0, 'failed' => 0, 'error' => 'task_not_found'];
+        }
+        if ($task['state'] != 0) {
+            return ['prepared' => 0, 'failed' => 0, 'error' => 'task_state_not_draft'];
+        }
+
+        $journal = Db::name('journal')->where('journal_id', $task['journal_id'])->find();
+        $logs = Db::name('promotion_email_log')
+            ->where('task_id', $taskId)
+            ->where('state', 0)
+            ->where('prepared_at', 0)
+            ->order('log_id asc')
+            ->select();
+
+        $prepared = 0;
+        $failed   = 0;
+        $now      = time();
+
+        foreach ($logs as $log) {
+            $expert = Db::name('expert')->where('expert_id', $log['expert_id'])->find();
+            if (!$expert) {
+                Db::name('promotion_email_log')->where('log_id', $log['log_id'])->update([
+                    'state' => 2,
+                    'error_msg' => 'Expert not found',
+                    'send_time' => $now,
+                ]);
+                $failed++;
+                continue;
+            }
+
+            $expertVars  = $this->buildExpertVars($expert);
+            $journalVars = $this->buildJournalVars($journal);
+            $vars        = array_merge($journalVars, $expertVars);
+            $rendered    = $this->renderFromTemplate(
+                $task['template_id'],
+                $task['journal_id'],
+                json_encode($vars, JSON_UNESCAPED_UNICODE),
+                $task['style_id']
+            );
+
+            if ($rendered['code'] !== 0) {
+                Db::name('promotion_email_log')->where('log_id', $log['log_id'])->update([
+                    'state'     => 2,
+                    'error_msg' => 'Prepare failed: ' . $rendered['msg'],
+                    'send_time' => $now,
+                ]);
+                $failed++;
+                continue;
+            }
+
+            Db::name('promotion_email_log')->where('log_id', $log['log_id'])->update([
+                'subject_prepared' => mb_substr($rendered['data']['subject'], 0, 512),
+                'body_prepared'    => $rendered['data']['body'],
+                'prepared_at'      => $now,
+            ]);
+            $prepared++;
+        }
+
+        Db::name('promotion_task')->where('task_id', $taskId)->update([
+            'state' => 5,
+            'utime' => $now,
+        ]);
+        $this->log("prepareTask task_id={$taskId} prepared={$prepared} failed={$failed}");
+
+        return ['prepared' => $prepared, 'failed' => $failed, 'error' => null];
+    }
+
+    /**
+     * 为指定日期的任务批量预生成邮件（供定时任务调用，如每天 22:00 准备明天的）
+     * @param string $date Y-m-d，如 2026-03-12
+     * @return array ['tasks' => int, 'prepared' => int, 'failed' => int, 'details' => []]
+     */
+    public function prepareTasksForDate($date)
+    {
+        $tasks = Db::name('promotion_task')
+            ->where('send_date', $date)
+            ->where('state', 0)
+            ->select();
+
+        $totalPrepared = 0;
+        $totalFailed   = 0;
+        $details       = [];
+
+        foreach ($tasks as $task) {
+            $ret = $this->prepareTask($task['task_id']);
+            $totalPrepared += $ret['prepared'];
+            $totalFailed   += $ret['failed'];
+            $details[]     = [
+                'task_id'  => $task['task_id'],
+                'task_name' => $task['task_name'],
+                'prepared' => $ret['prepared'],
+                'failed'   => $ret['failed'],
+                'error'    => $ret['error'],
+            ];
+        }
+
+        $this->log("prepareTasksForDate date={$date} tasks=" . count($tasks) . " prepared={$totalPrepared} failed={$totalFailed}");
+        return [
+            'tasks'    => count($tasks),
+            'prepared' => $totalPrepared,
+            'failed'   => $totalFailed,
+            'details'  => $details,
+        ];
+    }
+
+    /**
+     * 触发指定日期的已准备任务开始发送（供定时任务调用，如每天 8:00 触发今天的）
+     * 会先对 send_date=date 且 state=0 的任务做一次补准备，再启动所有 state=5 的任务
+     * @param string $date Y-m-d
+     * @return array ['prepared' => int, 'started' => int, 'task_ids' => []]
+     */
+    public function startTasksForDate($date)
+    {
+        // 补准备：当天日期但尚未准备的任务（如 22:00 后创建）
+        $catchUpTasks = Db::name('promotion_task')
+            ->where('send_date', $date)
+            ->where('state', 0)
+            ->select();
+        foreach ($catchUpTasks as $t) {
+            $this->prepareTask($t['task_id']);
+        }
+
+        $tasks = Db::name('promotion_task')
+            ->where('send_date', $date)
+            ->where('state', 5)
+            ->select();
+
+        $started   = 0;
+        $taskIds   = [];
+
+        foreach ($tasks as $task) {
+            Db::name('promotion_task')->where('task_id', $task['task_id'])->update([
+                'state' => 1,
+                'utime' => time(),
+            ]);
+            $this->enqueueNextEmail($task['task_id'], 0);
+            $started++;
+            $taskIds[] = $task['task_id'];
+        }
+
+        $this->log("startTasksForDate date={$date} started={$started} task_ids=" . implode(',', $taskIds));
+        return [
+            'prepared' => count($catchUpTasks),
+            'started'  => $started,
+            'task_ids' => $taskIds,
+        ];
+    }
+
     // ==================== Queue ====================
 
     public function enqueueNextEmail($taskId, $delay = 0)