diff --git a/app/command/InquiryBulkAssignCommand.php b/app/command/InquiryBulkAssignCommand.php
index 8c30789..f837fbf 100644
--- a/app/command/InquiryBulkAssignCommand.php
+++ b/app/command/InquiryBulkAssignCommand.php
@@ -3,6 +3,7 @@
 namespace app\command;
 
 use app\common\utils\email\InquiryDigestMail;
+use app\common\utils\email\MailSend;
 use app\crm\model\CustomerHis;
 use PhpOffice\PhpSpreadsheet\IOFactory;
 use Symfony\Component\Console\Command\Command;
@@ -33,6 +34,7 @@ class InquiryBulkAssignCommand extends Command
             ->addOption('dry-run', null, InputOption::VALUE_NONE, '只解析+匹配+分配，打印报告，不写库不发邮件')
             ->addOption('only-user', null, InputOption::VALUE_REQUIRED, '仅给指定 user_id 发邮件（试发）', '0')
             ->addOption('notify-only', null, InputOption::VALUE_NONE, '跳过写库，按 manifest 补发未成功的邮件')
+            ->addOption('no-notify', null, InputOption::VALUE_NONE, '只写库不发邮件（先核对库再用 --notify-only 补发）')
             ->addOption('self-test', null, InputOption::VALUE_NONE, '运行纯逻辑自测');
     }
 
@@ -121,6 +123,108 @@ class InquiryBulkAssignCommand extends Command
         return ['matched' => $matched, 'unmatched' => $unmatched];
     }
 
+    /**
+     * 单事务：更新 user_id + 写历史。用 Db::table() 不触发 model 事件。
+     */
+    private function applyAssignments(array $matched): void
+    {
+        Db::connection()->transaction(function () use ($matched) {
+            foreach ($matched as $row) {
+                Db::table('crm_customer')
+                    ->where('id', $row['customer_id'])
+                    ->update(['user_id' => $row['new_user_id']]);
+                CustomerHis::create([
+                    'customer_id' => $row['customer_id'],
+                    'user_his' => $row['old_user_id'],
+                    'user_id' => $row['new_user_id'],
+                ]);
+            }
+        });
+    }
+
+    private function manifestPath(string $date): string
+    {
+        return runtime_path() . '/inquiry_bulk_assign_' . $date . '.json';
+    }
+
+    private function initManifest(string $path, array $targetUserIds, array $matched, array $groups): void
+    {
+        if (is_file($path)) {
+            return; // 已存在则保留（含 emailed 标记），供补发使用
+        }
+        $perUser = [];
+        $emailed = [];
+        foreach ($targetUserIds as $uid) {
+            $perUser[(string)$uid] = count($groups[$uid] ?? []);
+            $emailed[(string)$uid] = false;
+        }
+        $data = [
+            'date' => date('Y-m-d'),
+            'assigned_at' => time(),
+            'target_users' => $targetUserIds,
+            'total_matched' => count($matched),
+            'per_user_counts' => $perUser,
+            'emailed' => $emailed,
+        ];
+        file_put_contents($path, json_encode($data, JSON_UNESCAPED_UNICODE | JSON_PRETTY_PRINT));
+    }
+
+    private function loadManifest(string $path): array
+    {
+        if (!is_file($path)) {
+            return ['emailed' => []];
+        }
+        return json_decode((string)file_get_contents($path), true) ?: ['emailed' => []];
+    }
+
+    private function saveManifest(string $path, array $data): void
+    {
+        file_put_contents($path, json_encode($data, JSON_UNESCAPED_UNICODE | JSON_PRETTY_PRINT));
+    }
+
+    /**
+     * 按 targetUserIds 顺序发汇总邮件；跳过已标记成功与 --only-user 之外的人。
+     */
+    private function sendDigests(array $groups, array $targetUserIds, string $manifestPath, int $onlyUser, OutputInterface $output): void
+    {
+        $users = Db::table('user')->whereIn('id', $targetUserIds)->get(['id', 'name', 'email']);
+        $userMap = [];
+        foreach ($users as $u) {
+            $userMap[(int)$u->id] = $u;
+        }
+        $manifest = $this->loadManifest($manifestPath);
+        $date = date('Y-m-d');
+
+        foreach ($targetUserIds as $uid) {
+            if ($onlyUser > 0 && $uid !== $onlyUser) {
+                continue;
+            }
+            if (!empty($manifest['emailed'][(string)$uid])) {
+                $output->writeln('<comment>跳过已发送: user ' . $uid . '</comment>');
+                continue;
+            }
+            $u = $userMap[$uid] ?? null;
+            if (!$u || empty($u->email)) {
+                $output->writeln('<error>user ' . $uid . ' 无邮箱，跳过</error>');
+                continue;
+            }
+            $inquiries = $groups[$uid] ?? [];
+            $html = InquiryDigestMail::build((string)$u->name, $inquiries, $date);
+            $subject = '询盘分配汇总（共 ' . count($inquiries) . ' 条）- ' . $u->name . ' - ' . $date;
+
+            $ok = MailSend::send($u->email, $subject, $html);
+            if (!$ok) {
+                $ok = MailSend::send($u->email, $subject, $html); // 重试 1 次
+            }
+            $manifest['emailed'][(string)$uid] = (bool)$ok;
+            $this->saveManifest($manifestPath, $manifest);
+
+            $tag = $ok ? 'info' : 'error';
+            $output->writeln('<' . $tag . '>user ' . $uid . ' (' . $u->email . '): '
+                . ($ok ? '发送成功' : '发送失败') . '，共 ' . count($inquiries) . ' 条</' . $tag . '>');
+        }
+    }
+
     protected function execute(InputInterface $input, OutputInterface $output): int
     {
         if ($input->getOption('self-test')) {
@@ -131,6 +235,7 @@ class InquiryBulkAssignCommand extends Command
         $targetUserIds = array_values(array_filter(array_map('intval', explode(',', (string)$input->getOption('users')))));
         $dryRun = (bool)$input->getOption('dry-run');
         $notifyOnly = (bool)$input->getOption('notify-only');
+        $noNotify = (bool)$input->getOption('no-notify');
         $onlyUser = (int)$input->getOption('only-user');
         $date = date('Y-m-d');
 
@@ -142,6 +247,10 @@ class InquiryBulkAssignCommand extends Command
             $output->writeln('<error>文件不存在: ' . $file . '</error>');
             return self::FAILURE;
         }
+        if ($notifyOnly && $noNotify) {
+            $output->writeln('<error>--notify-only 与 --no-notify 不能同时使用</error>');
+            return self::FAILURE;
+        }
 
         $output->writeln('<info>解析 Excel: ' . $file . '</info>');
         $rows = $this->parseExcel($file);
@@ -172,7 +281,21 @@ class InquiryBulkAssignCommand extends Command
             return self::SUCCESS;
         }
 
-        $output->writeln('<error>[未实现] 写库与发邮件见 Task 3/Task 4。</error>');
+        if (!$notifyOnly) {
+            $this->applyAssignments($matched);
+            $output->writeln('<info>已写库（user_id 更新 + crm_customer_his），共 ' . count($matched) . ' 条。</info>');
+        } else {
+            $output->writeln('<comment>[notify-only] 跳过写库。</comment>');
+        }
+
+        if ($noNotify) {
+            $output->writeln('<comment>[no-notify] 已写库，跳过发邮件。核对库后用 --notify-only 补发。</comment>');
+            return self::SUCCESS;
+        }
+
+        $manifestPath = $this->manifestPath($date);
+        $this->initManifest($manifestPath, $targetUserIds, $matched, $groups);
+        $this->sendDigests($groups, $targetUserIds, $manifestPath, $onlyUser, $output);
         return self::SUCCESS;
     }