diff --git a/src/modules/admin-ai-chat/admin-ai-chat.module.ts b/src/modules/admin-ai-chat/admin-ai-chat.module.ts
index 0bc9983..2296cae 100644
--- a/src/modules/admin-ai-chat/admin-ai-chat.module.ts
+++ b/src/modules/admin-ai-chat/admin-ai-chat.module.ts
@@ -4,9 +4,10 @@ import { AdminAiChatService } from './admin-ai-chat.service';
 import { AdminAuthGuard } from '../../common/guards/admin-auth.guard';
 import { AdminRolesGuard } from '../../common/guards/admin-roles.guard';
 import { AdminConversationModule } from '../admin-conversation/admin-conversation.module';
+import { AppConfigModule } from '../config/config.module';
 
 @Module({
-  imports: [AdminConversationModule],
+  imports: [AdminConversationModule, AppConfigModule],
   controllers: [AdminAiChatController],
   providers: [AdminAiChatService, AdminAuthGuard, AdminRolesGuard],
 })
diff --git a/src/modules/admin-ai-chat/admin-ai-chat.service.ts b/src/modules/admin-ai-chat/admin-ai-chat.service.ts
index dba0872..f3d0d8c 100644
--- a/src/modules/admin-ai-chat/admin-ai-chat.service.ts
+++ b/src/modules/admin-ai-chat/admin-ai-chat.service.ts
@@ -1,9 +1,10 @@
 import { Injectable, Logger } from '@nestjs/common';
 import type { AiChatDto } from './dto/ai-chat.dto';
 import { AdminConversationService } from '../admin-conversation/admin-conversation.service';
+import { AppConfigService } from '../config/config.service';
 import type { Response } from 'express';
 
-const HERMES_API_URL = 'http://10.2.0.7:8642';
+// HERMES_API_URL now read from config, fallback to hardcoded
 const HERMES_API_KEY = 'zhixi-hermes-key-2026';
 
 interface HermesRun {
@@ -25,7 +26,7 @@ export class AdminAiChatService {
   private readonly logger = new Logger(AdminAiChatService.name);
   private activeRuns = new Map<string, AbortController>();
 
-  constructor(private readonly conversationService: AdminConversationService) {}
+  constructor(private readonly conversationService: AdminConversationService, private readonly config: AppConfigService) {}
 
   async chat(dto: AiChatDto, adminUserId: string) {
     const sessionId = dto.conversationId
@@ -55,9 +56,10 @@ export class AdminAiChatService {
     };
     if (sessionId) headers['X-Hermes-Session-Id'] = sessionId;
 
-    const resp = await fetch(`${HERMES_API_URL}/v1/chat/completions`, {
+    const hermesUrl = await this.config.get('hermes.api_url', 'http://10.2.0.7:8642');
+    const resp = await fetch(`${hermesUrl}/v1/chat/completions`, {
       method: 'POST', headers,
-      body: JSON.stringify({ model: 'hermes-agent', messages, temperature: 0.7, max_tokens: 4096 }),
+      body: JSON.stringify({ model: 'hermes-agent', messages, temperature: parseFloat(await this.config.get('ai.temperature', '0.7')), max_tokens: parseInt(await this.config.get('ai.max_tokens', '4096')) }),
       signal: AbortSignal.timeout(120_000),
     });
     if (!resp.ok) throw new Error(`Hermes API error ${resp.status}`);
@@ -100,7 +102,8 @@ export class AdminAiChatService {
       };
       if (sessionId) headers['X-Hermes-Session-Id'] = sessionId;
 
-      const runResp = await fetch(`${HERMES_API_URL}/v1/runs`, {
+      const hermesUrl2 = await this.config.get('hermes.api_url', 'http://10.2.0.7:8642');
+      const runResp = await fetch(`${hermesUrl2}/v1/runs`, {
         method: 'POST', headers,
         body: JSON.stringify({
           input: dto.messages.map(m => ({ role: m.role, content: m.content })),
@@ -117,7 +120,7 @@ export class AdminAiChatService {
       const abortController = new AbortController();
       this.activeRuns.set(runId, abortController);
 
-      const eventResp = await fetch(`${HERMES_API_URL}/v1/runs/${runId}/events`, {
+      const eventResp = await fetch(`${hermesUrl2}/v1/runs/${runId}/events`, {
         headers: { Authorization: 'Bearer ' + HERMES_API_KEY },
         signal: abortController.signal,
       });