diff --git a/codechat/.port b/codechat/.port
index afe55a2..50464a5 100644
--- a/codechat/.port
+++ b/codechat/.port
@@ -1 +1 @@
-34689:1773367134016_22200_768qlmindc7g:1773378240856
\ No newline at end of file
+34689:1773710589395_12316_18r6tb53xr5k:1773716299978
\ No newline at end of file
diff --git a/codechat/.token b/codechat/.token
index a2c6038..7b1019f 100644
--- a/codechat/.token
+++ b/codechat/.token
@@ -1,7 +1,7 @@
 {
-  "token": "47c96fae6ababba95306064d77f8cb9d0ab937523d5c08825e3061a7617b902d",
-  "expires_at": 1773378566,
+  "token": "3a894ee27cf51fedbd1a75833a8f2fd16e58ff41a3795eba2c4a402543d044fe",
+  "expires_at": 1773717943,
   "card_type": 7,
   "card_expires_at": 1773883128,
-  "created_at": 1773376766
+  "created_at": 1773716143
 }
\ No newline at end of file
diff --git a/mcp-server-ssh/check_current.cjs b/mcp-server-ssh/check_current.cjs
new file mode 100644
index 0000000..9fc9e0c
--- /dev/null
+++ b/mcp-server-ssh/check_current.cjs
@@ -0,0 +1,18 @@
+const { Client } = require('ssh2');
+const c = new Client();
+c.on('ready', () => {
+  const cmd = [
+    "echo '=== LAST 200 LINES server-out.log ==='",
+    "tail -200 /var/log/bigwo/server-out.log",
+    "echo ''",
+    "echo '=== LAST 50 LINES server-error.log ==='",
+    "tail -50 /var/log/bigwo/server-error.log 2>/dev/null || echo 'no error log'",
+  ].join(' && ');
+  c.exec(cmd, (err, s) => {
+    if (err) { console.error(err); c.end(); return; }
+    let o = '';
+    s.on('data', (d) => (o += d));
+    s.stderr.on('data', (d) => (o += d));
+    s.on('close', () => { console.log(o); c.end(); });
+  });
+}).connect({ host: '119.45.10.34', port: 22, username: 'root', password: '#xyzh%CS#2512@28' });
diff --git a/mcp-server-ssh/check_double_msg.cjs b/mcp-server-ssh/check_double_msg.cjs
new file mode 100644
index 0000000..e8900d9
--- /dev/null
+++ b/mcp-server-ssh/check_double_msg.cjs
@@ -0,0 +1,23 @@
+const { Client } = require('ssh2');
+const c = new Client();
+c.on('ready', () => {
+  const cmd = [
+    "echo '=== LATEST SESSION FULL EVENTS ==='",
+    "LAST_SID=$(grep 'processReply start' /var/log/bigwo/server-out.log | tail -1 | grep -oP 'session=\\K[^ ]+')",
+    "echo \"Session: $LAST_SID\"",
+    "grep \"$LAST_SID\" /var/log/bigwo/server-out.log | grep -v 'partial' | head -60",
+    "echo ''",
+    "echo '=== 公司产品 SESSION EVENTS ==='",
+    "grep '我们公司的产品\\|公司的产品' /var/log/bigwo/server-out.log | tail -5",
+    "echo ''",
+    "echo '=== EVENT 550/559/351 FOR LATEST SESSION ==='",
+    "grep \"$LAST_SID\" /var/log/bigwo/server-out.log | grep -E 'upstream assistant|flush|persistAssistant|subtitle.*assistant' | tail -20",
+  ].join(' && ');
+  c.exec(cmd, (err, s) => {
+    if (err) { console.error(err); c.end(); return; }
+    let o = '';
+    s.on('data', (d) => (o += d));
+    s.stderr.on('data', (d) => (o += d));
+    s.on('close', () => { console.log(o); c.end(); });
+  });
+}).connect({ host: '119.45.10.34', port: 22, username: 'root', password: '#xyzh%CS#2512@28' });
diff --git a/mcp-server-ssh/check_dual_reply.cjs b/mcp-server-ssh/check_dual_reply.cjs
new file mode 100644
index 0000000..bed929d
--- /dev/null
+++ b/mcp-server-ssh/check_dual_reply.cjs
@@ -0,0 +1,11 @@
+const { Client } = require('ssh2');
+const c = new Client();
+c.on('ready', () => {
+  c.exec('grep -E "processReply|upstream assistant|persistAssistant|SayHello|polishForSpeech|local_tts|delivery|blockUpstream|suppress" /var/log/bigwo/server-out.log | tail -50', (err, s) => {
+    if (err) { console.error(err); c.end(); return; }
+    let o = '';
+    s.on('data', (d) => (o += d));
+    s.stderr.on('data', (d) => (o += d));
+    s.on('close', () => { console.log(o); c.end(); });
+  });
+}).connect({ host: '119.45.10.34', port: 22, username: 'root', password: '#xyzh%CS#2512@28' });
diff --git a/mcp-server-ssh/check_dual_reply2.cjs b/mcp-server-ssh/check_dual_reply2.cjs
new file mode 100644
index 0000000..e457d76
--- /dev/null
+++ b/mcp-server-ssh/check_dual_reply2.cjs
@@ -0,0 +1,17 @@
+const { Client } = require('ssh2');
+const c = new Client();
+c.on('ready', () => {
+  const cmd = [
+    "echo '=== LATEST SESSION FULL LOG ==='",
+    "LAST_SID=$(grep 'upstream ready' /var/log/bigwo/server-out.log | tail -1 | grep -oP 'session=\\K[^ ]+')",
+    "echo \"Session: $LAST_SID\"",
+    "grep \"$LAST_SID\" /var/log/bigwo/server-out.log | head -80",
+  ].join(' && ');
+  c.exec(cmd, (err, s) => {
+    if (err) { console.error(err); c.end(); return; }
+    let o = '';
+    s.on('data', (d) => (o += d));
+    s.stderr.on('data', (d) => (o += d));
+    s.on('close', () => { console.log(o); c.end(); });
+  });
+}).connect({ host: '119.45.10.34', port: 22, username: 'root', password: '#xyzh%CS#2512@28' });
diff --git a/mcp-server-ssh/check_dual_reply3.cjs b/mcp-server-ssh/check_dual_reply3.cjs
new file mode 100644
index 0000000..08693a5
--- /dev/null
+++ b/mcp-server-ssh/check_dual_reply3.cjs
@@ -0,0 +1,16 @@
+const { Client } = require('ssh2');
+const c = new Client();
+c.on('ready', () => {
+  const cmd = [
+    "LAST_SID=$(grep 'upstream ready' /var/log/bigwo/server-out.log | tail -1 | grep -oP 'session=\\K[^ ]+')",
+    "echo \"Session: $LAST_SID\"",
+    "grep \"$LAST_SID\" /var/log/bigwo/server-out.log | grep -E 'processReply|upstream assistant|persistAssist|suppress|blockUpstream|delivery|local_tts|unblock|tts_event|event.*550|event.*351|event.*559|barge|chunk' | tail -40",
+  ].join(' && ');
+  c.exec(cmd, (err, s) => {
+    if (err) { console.error(err); c.end(); return; }
+    let o = '';
+    s.on('data', (d) => (o += d));
+    s.stderr.on('data', (d) => (o += d));
+    s.on('close', () => { console.log(o); c.end(); });
+  });
+}).connect({ host: '119.45.10.34', port: 22, username: 'root', password: '#xyzh%CS#2512@28' });
diff --git a/mcp-server-ssh/check_dual_reply4.cjs b/mcp-server-ssh/check_dual_reply4.cjs
new file mode 100644
index 0000000..91e7d1f
--- /dev/null
+++ b/mcp-server-ssh/check_dual_reply4.cjs
@@ -0,0 +1,16 @@
+const { Client } = require('ssh2');
+const c = new Client();
+c.on('ready', () => {
+  const cmd = [
+    "LAST_SID=$(grep 'upstream ready' /var/log/bigwo/server-out.log | tail -1 | grep -oP 'session=\\K[^ ]+')",
+    "echo \"Session: $LAST_SID\"",
+    "grep \"$LAST_SID\" /var/log/bigwo/server-out.log | grep -v 'upstream partial' | tail -40",
+  ].join(' && ');
+  c.exec(cmd, (err, s) => {
+    if (err) { console.error(err); c.end(); return; }
+    let o = '';
+    s.on('data', (d) => (o += d));
+    s.stderr.on('data', (d) => (o += d));
+    s.on('close', () => { console.log(o); c.end(); });
+  });
+}).connect({ host: '119.45.10.34', port: 22, username: 'root', password: '#xyzh%CS#2512@28' });
diff --git a/mcp-server-ssh/check_env.cjs b/mcp-server-ssh/check_env.cjs
new file mode 100644
index 0000000..d2ed324
--- /dev/null
+++ b/mcp-server-ssh/check_env.cjs
@@ -0,0 +1,24 @@
+const { Client } = require('ssh2');
+const c = new Client();
+c.on('ready', () => {
+  const cmd = [
+    "echo '=== S2S ENV ==='",
+    "grep -E '^VOLC_S2S|^VOLC_DIALOG' /www/wwwroot/demo.tensorgrove.com.cn/server/.env | sed 's/=.*/=***MASKED***/'",
+    "echo ''",
+    "echo '=== ALL VOLC ENV KEYS ==='",
+    "grep '^VOLC_' /www/wwwroot/demo.tensorgrove.com.cn/server/.env | sed 's/=.*/=.../'",
+    "echo ''",
+    "echo '=== SESSIONS AFTER DEPLOY (17:06) ==='",
+    "awk '/17:0[6-9]|17:[1-5]/' /var/log/bigwo/server-out.log | grep -E 'upstream ready|upstream error|upstream closed|quota' | tail -10",
+    "echo ''",
+    "echo '=== HEALTH ==='",
+    "curl -s http://127.0.0.1:3012/api/health 2>&1",
+  ].join(' && ');
+  c.exec(cmd, (err, s) => {
+    if (err) { console.error(err); c.end(); return; }
+    let o = '';
+    s.on('data', (d) => (o += d));
+    s.stderr.on('data', (d) => (o += d));
+    s.on('close', () => { console.log(o); c.end(); });
+  });
+}).connect({ host: '119.45.10.34', port: 22, username: 'root', password: '#xyzh%CS#2512@28' });
diff --git a/mcp-server-ssh/check_greeting.cjs b/mcp-server-ssh/check_greeting.cjs
new file mode 100644
index 0000000..f48c863
--- /dev/null
+++ b/mcp-server-ssh/check_greeting.cjs
@@ -0,0 +1,11 @@
+const { Client } = require('ssh2');
+const c = new Client();
+c.on('ready', () => {
+  c.exec('tail -200 /var/log/bigwo/server-out.log | grep -iE "sendGreeting|replayGreeting|sendSpeechText|upstream ready|tts_event|upstream closed|greeting|ready"', (err, s) => {
+    if (err) { console.error(err); c.end(); return; }
+    let o = '';
+    s.on('data', (d) => (o += d));
+    s.stderr.on('data', (d) => (o += d));
+    s.on('close', () => { console.log(o); c.end(); });
+  });
+}).connect({ host: '119.45.10.34', port: 22, username: 'root', password: '#xyzh%CS#2512@28' });
diff --git a/mcp-server-ssh/check_greeting2.cjs b/mcp-server-ssh/check_greeting2.cjs
new file mode 100644
index 0000000..edd194b
--- /dev/null
+++ b/mcp-server-ssh/check_greeting2.cjs
@@ -0,0 +1,11 @@
+const { Client } = require('ssh2');
+const c = new Client();
+c.on('ready', () => {
+  c.exec('grep -E "sendGreeting|replayGreeting|upstream ready|greeting|readySent" /var/log/bigwo/server-out.log | tail -30', (err, s) => {
+    if (err) { console.error(err); c.end(); return; }
+    let o = '';
+    s.on('data', (d) => (o += d));
+    s.stderr.on('data', (d) => (o += d));
+    s.on('close', () => { console.log(o); c.end(); });
+  });
+}).connect({ host: '119.45.10.34', port: 22, username: 'root', password: '#xyzh%CS#2512@28' });
diff --git a/mcp-server-ssh/check_greeting3.cjs b/mcp-server-ssh/check_greeting3.cjs
new file mode 100644
index 0000000..c6265a6
--- /dev/null
+++ b/mcp-server-ssh/check_greeting3.cjs
@@ -0,0 +1,11 @@
+const { Client } = require('ssh2');
+const c = new Client();
+c.on('ready', () => {
+  c.exec('grep "mmsuckxe" /var/log/bigwo/server-out.log | head -60', (err, s) => {
+    if (err) { console.error(err); c.end(); return; }
+    let o = '';
+    s.on('data', (d) => (o += d));
+    s.stderr.on('data', (d) => (o += d));
+    s.on('close', () => { console.log(o); c.end(); });
+  });
+}).connect({ host: '119.45.10.34', port: 22, username: 'root', password: '#xyzh%CS#2512@28' });
diff --git a/mcp-server-ssh/check_greeting4.cjs b/mcp-server-ssh/check_greeting4.cjs
new file mode 100644
index 0000000..49c3fb7
--- /dev/null
+++ b/mcp-server-ssh/check_greeting4.cjs
@@ -0,0 +1,21 @@
+const { Client } = require('ssh2');
+const c = new Client();
+c.on('ready', () => {
+  // Get the last session's full greeting timeline + audio forwarding evidence
+  const cmd = [
+    "echo '=== GREETING LOGS ==='",
+    "grep -E 'sendGreeting|replayGreeting|sendSpeechText|tts_event|tts_reset|audio block|upstream ready' /var/log/bigwo/server-out.log | tail -30",
+    "echo ''",
+    "echo '=== LAST SESSION FULL LOG (first 40 lines) ==='",
+    "LAST_SID=$(grep 'upstream ready' /var/log/bigwo/server-out.log | tail -1 | grep -oP 'session=\\K[^ ]+')",
+    "echo \"Session: $LAST_SID\"",
+    "grep \"$LAST_SID\" /var/log/bigwo/server-out.log | head -40",
+  ].join(' && ');
+  c.exec(cmd, (err, s) => {
+    if (err) { console.error(err); c.end(); return; }
+    let o = '';
+    s.on('data', (d) => (o += d));
+    s.stderr.on('data', (d) => (o += d));
+    s.on('close', () => { console.log(o); c.end(); });
+  });
+}).connect({ host: '119.45.10.34', port: 22, username: 'root', password: '#xyzh%CS#2512@28' });
diff --git a/mcp-server-ssh/check_health.cjs b/mcp-server-ssh/check_health.cjs
new file mode 100644
index 0000000..79f73d5
--- /dev/null
+++ b/mcp-server-ssh/check_health.cjs
@@ -0,0 +1,21 @@
+const { Client } = require('ssh2');
+const c = new Client();
+c.on('ready', () => {
+  const cmd = [
+    "echo '=== HEALTH CHECK ==='",
+    "curl -s http://127.0.0.1:3012/api/health 2>&1",
+    "echo ''",
+    "echo '=== PM2 STATUS ==='",
+    "pm2 list 2>/dev/null",
+    "echo ''",
+    "echo '=== LAST 5 LINES ==='",
+    "tail -5 /var/log/bigwo/server-out.log",
+  ].join(' && ');
+  c.exec(cmd, (err, s) => {
+    if (err) { console.error(err); c.end(); return; }
+    let o = '';
+    s.on('data', (d) => (o += d));
+    s.stderr.on('data', (d) => (o += d));
+    s.on('close', () => { console.log(o); c.end(); });
+  });
+}).connect({ host: '119.45.10.34', port: 22, username: 'root', password: '#xyzh%CS#2512@28' });
diff --git a/mcp-server-ssh/check_kb_env.cjs b/mcp-server-ssh/check_kb_env.cjs
new file mode 100644
index 0000000..876dbf2
--- /dev/null
+++ b/mcp-server-ssh/check_kb_env.cjs
@@ -0,0 +1,24 @@
+const { Client } = require('ssh2');
+const c = new Client();
+c.on('ready', () => {
+  const cmd = [
+    "echo '=== ENV KB CONFIG ==='",
+    "grep -E 'VOLC_ARK_ENDPOINT_ID|VOLC_ARK_KNOWLEDGE|VOLC_ARK_API_KEY|VOLC_ACCESS_KEY' /www/wwwroot/demo.tensorgrove.com.cn/server/.env | sed 's/=.\\{8\\}/=***REDACTED/g'",
+    "echo ''",
+    "echo '=== RECENT KB LOGS (last 500 lines) ==='",
+    "tail -500 /var/log/bigwo/server-out.log | grep -E 'ToolExecutor|searchKnowledge|Ark KB|knowledge|processReply start|processReply handoff|external_rag|tts_reset|blockUpstream|unblock|barge-in|upstream assistant|upstream final|upstream partial'",
+    "echo ''",
+    "echo '=== RECENT ERROR LOGS ==='",
+    "tail -100 /var/log/bigwo/server-error.log 2>/dev/null | grep -E 'ToolExecutor|Ark|knowledge|timeout|quota' | tail -20",
+    "echo ''",
+    "echo '=== PM2 STATUS ==='",
+    "pm2 list 2>/dev/null || echo 'pm2 not found'",
+  ].join(' && ');
+  c.exec(cmd, (err, s) => {
+    if (err) { console.error(err); c.end(); return; }
+    let o = '';
+    s.on('data', (d) => (o += d));
+    s.stderr.on('data', (d) => (o += d));
+    s.on('close', () => { console.log(o); c.end(); });
+  });
+}).connect({ host: '119.45.10.34', port: 22, username: 'root', password: '#xyzh%CS#2512@28' });
diff --git a/mcp-server-ssh/check_kb_issue.cjs b/mcp-server-ssh/check_kb_issue.cjs
new file mode 100644
index 0000000..92be2cd
--- /dev/null
+++ b/mcp-server-ssh/check_kb_issue.cjs
@@ -0,0 +1,21 @@
+const { Client } = require('ssh2');
+const c = new Client();
+c.on('ready', () => {
+  const cmd = [
+    "echo '=== RECENT KB RELATED LOGS ==='",
+    "grep -E 'searchKnowledge|Ark KB|rewritten|classifyKnowledge|tryKnowledge|shouldForce|Chat.*User|Chat.*Assistant|基础三合一|三合一|胡辣汤' /var/log/bigwo/server-out.log | tail -80",
+    "echo ''",
+    "echo '=== RECENT CHAT LOGS ==='",
+    "grep -E '\\[Chat\\]' /var/log/bigwo/server-out.log | tail -30",
+    "echo ''",
+    "echo '=== RECENT ERRORS ==='",
+    "grep -iE 'error|failed|timeout' /var/log/bigwo/server-out.log | tail -20",
+  ].join(' && ');
+  c.exec(cmd, (err, s) => {
+    if (err) { console.error(err); c.end(); return; }
+    let o = '';
+    s.on('data', (d) => (o += d));
+    s.stderr.on('data', (d) => (o += d));
+    s.on('close', () => { console.log(o); c.end(); });
+  });
+}).connect({ host: '119.45.10.34', port: 22, username: 'root', password: '#xyzh%CS#2512@28' });
diff --git a/mcp-server-ssh/check_kb_issue2.cjs b/mcp-server-ssh/check_kb_issue2.cjs
new file mode 100644
index 0000000..2b0ee60
--- /dev/null
+++ b/mcp-server-ssh/check_kb_issue2.cjs
@@ -0,0 +1,27 @@
+const { Client } = require('ssh2');
+const c = new Client();
+c.on('ready', () => {
+  const cmd = [
+    "echo '=== LAST 50 CHAT LOGS ==='",
+    "grep '\\[Chat\\]' /var/log/bigwo/server-out.log | tail -50",
+    "echo ''",
+    "echo '=== LAST 30 TOOLEXECUTOR LOGS ==='",
+    "grep '\\[ToolExecutor\\]' /var/log/bigwo/server-out.log | tail -30",
+    "echo ''",
+    "echo '=== LAST 20 COZE LOGS ==='",
+    "grep '\\[CozeChat\\]' /var/log/bigwo/server-out.log | tail -20",
+    "echo ''",
+    "echo '=== LAST 20 ARK LOGS ==='",
+    "grep '\\[ArkChat\\]' /var/log/bigwo/server-out.log | tail -20",
+    "echo ''",
+    "echo '=== .env KB CONFIG ==='",
+    "grep -E 'VOLC_ARK_KNOWLEDGE|VOLC_ARK_ENDPOINT|VOLC_ARK_API_KEY|COZE_' /www/wwwroot/demo.tensorgrove.com.cn/server/.env | sed 's/=.\\{12\\}/=***REDACTED/g'",
+  ].join(' && ');
+  c.exec(cmd, (err, s) => {
+    if (err) { console.error(err); c.end(); return; }
+    let o = '';
+    s.on('data', (d) => (o += d));
+    s.stderr.on('data', (d) => (o += d));
+    s.on('close', () => { console.log(o); c.end(); });
+  });
+}).connect({ host: '119.45.10.34', port: 22, username: 'root', password: '#xyzh%CS#2512@28' });
diff --git a/mcp-server-ssh/check_kb_issue3.cjs b/mcp-server-ssh/check_kb_issue3.cjs
new file mode 100644
index 0000000..0155063
--- /dev/null
+++ b/mcp-server-ssh/check_kb_issue3.cjs
@@ -0,0 +1,24 @@
+const { Client } = require('ssh2');
+const c = new Client();
+c.on('ready', () => {
+  const cmd = [
+    "echo '=== LAST 100 LINES WITH CHAT/KB ==='",
+    "grep -E '\\[Chat\\]|\\[ToolExecutor\\]|\\[CozeChat\\]|\\[ArkChat\\]|\\[POST\\]|\\[GET\\]' /var/log/bigwo/server-out.log | tail -100",
+    "echo ''",
+    "echo '=== SEARCH FOR 胡辣汤 ==='",
+    "grep -i '胡辣汤' /var/log/bigwo/server-out.log | tail -10",
+    "echo ''",
+    "echo '=== SEARCH FOR 基础三合一 ==='",
+    "grep -i '基础三合一\\|基础套装' /var/log/bigwo/server-out.log | tail -20",
+    "echo ''",
+    "echo '=== MOST RECENT 50 LINES ==='",
+    "tail -50 /var/log/bigwo/server-out.log",
+  ].join(' && ');
+  c.exec(cmd, (err, s) => {
+    if (err) { console.error(err); c.end(); return; }
+    let o = '';
+    s.on('data', (d) => (o += d));
+    s.stderr.on('data', (d) => (o += d));
+    s.on('close', () => { console.log(o); c.end(); });
+  });
+}).connect({ host: '119.45.10.34', port: 22, username: 'root', password: '#xyzh%CS#2512@28' });
diff --git a/mcp-server-ssh/check_latency.cjs b/mcp-server-ssh/check_latency.cjs
new file mode 100644
index 0000000..a445c96
--- /dev/null
+++ b/mcp-server-ssh/check_latency.cjs
@@ -0,0 +1,16 @@
+const { Client } = require('ssh2');
+const c = new Client();
+c.on('ready', () => {
+  const cmd = [
+    "LAST_SID=$(grep 'upstream ready' /var/log/bigwo/server-out.log | tail -1 | grep -oP 'session=\\K[^ ]+')",
+    "echo \"Session: $LAST_SID\"",
+    "grep \"$LAST_SID\" /var/log/bigwo/server-out.log | grep -v 'upstream partial' | grep -v 'upstream assistant chunk'",
+  ].join(' && ');
+  c.exec(cmd, (err, s) => {
+    if (err) { console.error(err); c.end(); return; }
+    let o = '';
+    s.on('data', (d) => (o += d));
+    s.stderr.on('data', (d) => (o += d));
+    s.on('close', () => { console.log(o); c.end(); });
+  });
+}).connect({ host: '119.45.10.34', port: 22, username: 'root', password: '#xyzh%CS#2512@28' });
diff --git a/mcp-server-ssh/check_latency2.cjs b/mcp-server-ssh/check_latency2.cjs
new file mode 100644
index 0000000..a445c96
--- /dev/null
+++ b/mcp-server-ssh/check_latency2.cjs
@@ -0,0 +1,16 @@
+const { Client } = require('ssh2');
+const c = new Client();
+c.on('ready', () => {
+  const cmd = [
+    "LAST_SID=$(grep 'upstream ready' /var/log/bigwo/server-out.log | tail -1 | grep -oP 'session=\\K[^ ]+')",
+    "echo \"Session: $LAST_SID\"",
+    "grep \"$LAST_SID\" /var/log/bigwo/server-out.log | grep -v 'upstream partial' | grep -v 'upstream assistant chunk'",
+  ].join(' && ');
+  c.exec(cmd, (err, s) => {
+    if (err) { console.error(err); c.end(); return; }
+    let o = '';
+    s.on('data', (d) => (o += d));
+    s.stderr.on('data', (d) => (o += d));
+    s.on('close', () => { console.log(o); c.end(); });
+  });
+}).connect({ host: '119.45.10.34', port: 22, username: 'root', password: '#xyzh%CS#2512@28' });
diff --git a/mcp-server-ssh/check_logs.cjs b/mcp-server-ssh/check_logs.cjs
new file mode 100644
index 0000000..fa458fc
--- /dev/null
+++ b/mcp-server-ssh/check_logs.cjs
@@ -0,0 +1,12 @@
+const { Client } = require("ssh2");
+const c = new Client();
+c.on("ready", () => {
+  // 搜索包含"产品"的日志行，以及 processReply/handoff 相关行
+  c.exec('tail -50 /var/log/bigwo/server-out.log | grep -E "greeting|upstream|tts_event|assistant|rag|ready|error"', (err, s) => {
+    if (err) { console.error(err); c.end(); return; }
+    let o = "";
+    s.on("data", (d) => (o += d));
+    s.stderr.on("data", (d) => (o += d));
+    s.on("close", () => { console.log(o); c.end(); });
+  });
+}).connect({ host: "119.45.10.34", port: 22, username: "root", password: "#xyzh%CS#2512@28" });
diff --git a/mcp-server-ssh/check_quota.cjs b/mcp-server-ssh/check_quota.cjs
new file mode 100644
index 0000000..272f59d
--- /dev/null
+++ b/mcp-server-ssh/check_quota.cjs
@@ -0,0 +1,30 @@
+const { Client } = require('ssh2');
+const c = new Client();
+c.on('ready', () => {
+  const cmd = [
+    "echo '=== ALL QUOTA ERRORS ==='",
+    "grep -i 'quota exceeded' /var/log/bigwo/server-out.log | tail -20",
+    "echo ''",
+    "echo '=== QUOTA ERROR DETAILS (full payload) ==='",
+    "grep -i 'quota exceeded' /var/log/bigwo/server-out.log | tail -5 | grep -oP 'payload=\\K.*'",
+    "echo ''",
+    "echo '=== S2S ENV CONFIG ==='",
+    "grep -E 'VOLC_S2S|VOLC_DIALOG|VOLC_RTC|VOLC_ACCESS' /www/wwwroot/demo.tensorgrove.com.cn/server/.env",
+    "echo ''",
+    "echo '=== RECENT UPSTREAM CONNECTIONS ==='",
+    "grep -E 'upstream ready|upstream closed|upstream error|createUpstream' /var/log/bigwo/server-out.log | tail -20",
+    "echo ''",
+    "echo '=== LAST ERROR LOG TIMESTAMPS ==='",
+    "grep -i 'quota exceeded' /var/log/bigwo/server-error.log | tail -5",
+    "echo ''",
+    "echo '=== TRY FRESH CONNECTION TEST ==='",
+    "curl -s http://127.0.0.1:3012/api/health 2>&1",
+  ].join(' && ');
+  c.exec(cmd, (err, s) => {
+    if (err) { console.error(err); c.end(); return; }
+    let o = '';
+    s.on('data', (d) => (o += d));
+    s.stderr.on('data', (d) => (o += d));
+    s.on('close', () => { console.log(o); c.end(); });
+  });
+}).connect({ host: '119.45.10.34', port: 22, username: 'root', password: '#xyzh%CS#2512@28' });
diff --git a/mcp-server-ssh/check_quota2.cjs b/mcp-server-ssh/check_quota2.cjs
new file mode 100644
index 0000000..6820d94
--- /dev/null
+++ b/mcp-server-ssh/check_quota2.cjs
@@ -0,0 +1,30 @@
+const { Client } = require('ssh2');
+const c = new Client();
+c.on('ready', () => {
+  const cmd = [
+    "echo '=== S2S ENV CONFIG (full) ==='",
+    "grep -E 'VOLC_S2S|VOLC_DIALOG|VOLC_RTC|VOLC_ACCESS' /www/wwwroot/demo.tensorgrove.com.cn/server/.env",
+    "echo ''",
+    "echo '=== ALL QUOTA ERRORS in server-error.log ==='",
+    "grep -i 'quota' /var/log/bigwo/server-error.log 2>/dev/null | tail -10",
+    "echo ''",
+    "echo '=== ALL QUOTA ERRORS in server-out.log ==='", 
+    "grep -i 'quota' /var/log/bigwo/server-out.log 2>/dev/null | tail -10",
+    "echo ''",
+    "echo '=== LAST 20 UPSTREAM EVENTS ==='",
+    "grep -E 'upstream ready|upstream closed|upstream error' /var/log/bigwo/server-out.log 2>/dev/null | tail -20",
+    "echo ''",
+    "echo '=== MOST RECENT ERROR LOG ==='",
+    "tail -20 /var/log/bigwo/server-error.log 2>/dev/null",
+    "echo ''",
+    "echo '=== MOST RECENT OUT LOG ==='",
+    "tail -20 /var/log/bigwo/server-out.log 2>/dev/null",
+  ].join(' && ');
+  c.exec(cmd, (err, s) => {
+    if (err) { console.error(err); c.end(); return; }
+    let o = '';
+    s.on('data', (d) => (o += d));
+    s.stderr.on('data', (d) => (o += d));
+    s.on('close', () => { console.log(o); c.end(); });
+  });
+}).connect({ host: '119.45.10.34', port: 22, username: 'root', password: '#xyzh%CS#2512@28' });
diff --git a/mcp-server-ssh/check_speaker.cjs b/mcp-server-ssh/check_speaker.cjs
new file mode 100644
index 0000000..7faa7c0
--- /dev/null
+++ b/mcp-server-ssh/check_speaker.cjs
@@ -0,0 +1,21 @@
+const { Client } = require('ssh2');
+const c = new Client();
+c.on('ready', () => {
+  const cmd = [
+    "echo '=== .env speaker/s2s config ==='",
+    "grep -i 'speaker\\|s2s\\|tts\\|voice\\|model' /www/wwwroot/demo.tensorgrove.com.cn/server/.env 2>/dev/null || echo 'no match'",
+    "echo ''",
+    "echo '=== Latest session start payload ==='",
+    "grep -i 'buildStartSession\\|speaker\\|system_role\\|speaking_style\\|model.*version\\|session.*start' /var/log/bigwo/server-out.log | tail -10",
+    "echo ''",
+    "echo '=== Current nativeVoiceGateway speaker line ==='",
+    "grep -n 'speaker' /www/wwwroot/demo.tensorgrove.com.cn/server/services/nativeVoiceGateway.js | head -5",
+  ].join(' && ');
+  c.exec(cmd, (err, s) => {
+    if (err) { console.error(err); c.end(); return; }
+    let o = '';
+    s.on('data', d => o += d);
+    s.stderr.on('data', d => o += d);
+    s.on('close', () => { console.log(o); c.end(); });
+  });
+}).connect({ host: '119.45.10.34', port: 22, username: 'root', password: '#xyzh%CS#2512@28' });
diff --git a/mcp-server-ssh/check_voice.cjs b/mcp-server-ssh/check_voice.cjs
new file mode 100644
index 0000000..fd11be0
--- /dev/null
+++ b/mcp-server-ssh/check_voice.cjs
@@ -0,0 +1,20 @@
+const { Client } = require('ssh2');
+const c = new Client();
+c.on('ready', () => {
+  const cmd = [
+    "echo '=== SPEAKER ENV ==='",
+    "grep -oP 'VOLC_S2S_SPEAKER_ID=\\K.*' /www/wwwroot/demo.tensorgrove.com.cn/server/.env",
+    "echo ''",
+    "echo '=== LATEST SESSION CONFIG ==='",
+    "LAST_SID=$(grep 'upstream ready' /var/log/bigwo/server-out.log | tail -1 | grep -oP 'session=\\K[^ ]+')",
+    "echo \"Session: $LAST_SID\"",
+    "grep -E 'speaker|SayHello|tts_event|ttsType|voice|config' /var/log/bigwo/server-out.log | tail -20",
+  ].join(' && ');
+  c.exec(cmd, (err, s) => {
+    if (err) { console.error(err); c.end(); return; }
+    let o = '';
+    s.on('data', (d) => (o += d));
+    s.stderr.on('data', (d) => (o += d));
+    s.on('close', () => { console.log(o); c.end(); });
+  });
+}).connect({ host: '119.45.10.34', port: 22, username: 'root', password: '#xyzh%CS#2512@28' });
diff --git a/mcp-server-ssh/check_voice2.cjs b/mcp-server-ssh/check_voice2.cjs
new file mode 100644
index 0000000..342672b
--- /dev/null
+++ b/mcp-server-ssh/check_voice2.cjs
@@ -0,0 +1,21 @@
+const { Client } = require('ssh2');
+const c = new Client();
+c.on('ready', () => {
+  const cmd = [
+    "echo '=== .env SPEAKER lines ==='",
+    "grep -i 'speaker' /www/wwwroot/demo.tensorgrove.com.cn/server/.env || echo 'NO SPEAKER in .env'",
+    "echo ''",
+    "echo '=== .env S2S lines ==='",
+    "grep -i 's2s' /www/wwwroot/demo.tensorgrove.com.cn/server/.env || echo 'NO S2S in .env'",
+    "echo ''",
+    "echo '=== Session startup log (speaker) ==='",
+    "grep -i 'speaker\\|tts.*config\\|session.*start\\|StartSession' /var/log/bigwo/server-out.log | tail -10",
+  ].join(' && ');
+  c.exec(cmd, (err, s) => {
+    if (err) { console.error(err); c.end(); return; }
+    let o = '';
+    s.on('data', (d) => (o += d));
+    s.stderr.on('data', (d) => (o += d));
+    s.on('close', () => { console.log(o); c.end(); });
+  });
+}).connect({ host: '119.45.10.34', port: 22, username: 'root', password: '#xyzh%CS#2512@28' });
diff --git a/mcp-server-ssh/check_voice_issue.cjs b/mcp-server-ssh/check_voice_issue.cjs
new file mode 100644
index 0000000..4e91002
--- /dev/null
+++ b/mcp-server-ssh/check_voice_issue.cjs
@@ -0,0 +1,29 @@
+const { Client } = require('ssh2');
+const c = new Client();
+c.on('ready', () => {
+  const cmd = [
+    "echo '=== LAST SESSION VOICE LOGS ==='",
+    "LAST_SID=$(grep 'upstream ready' /var/log/bigwo/server-out.log | tail -1 | grep -oP 'session=\\K[^ ]+')",
+    "echo \"Last session: $LAST_SID\"",
+    "grep \"$LAST_SID\" /var/log/bigwo/server-out.log | grep -v 'partial' | tail -40",
+    "echo ''",
+    "echo '=== START SESSION PAYLOAD EVIDENCE ==='",
+    "grep -E 'buildStartSession|StartSession|model.*version|modelVersion|system_role' /var/log/bigwo/server-out.log | tail -10",
+    "echo ''",
+    "echo '=== UPSTREAM ASSISTANT TEXT ==='",
+    "grep 'upstream assistant' /var/log/bigwo/server-out.log | tail -10",
+    "echo ''",
+    "echo '=== 旅游/江西 RELATED ==='",
+    "grep -i '旅游\\|江西\\|景点' /var/log/bigwo/server-out.log | tail -10",
+    "echo ''",
+    "echo '=== processReply LOGS ==='",
+    "grep 'processReply' /var/log/bigwo/server-out.log | tail -15",
+  ].join(' && ');
+  c.exec(cmd, (err, s) => {
+    if (err) { console.error(err); c.end(); return; }
+    let o = '';
+    s.on('data', (d) => (o += d));
+    s.stderr.on('data', (d) => (o += d));
+    s.on('close', () => { console.log(o); c.end(); });
+  });
+}).connect({ host: '119.45.10.34', port: 22, username: 'root', password: '#xyzh%CS#2512@28' });
diff --git a/mcp-server-ssh/deploy_asr_alias_fix.cjs b/mcp-server-ssh/deploy_asr_alias_fix.cjs
new file mode 100644
index 0000000..4514f09
--- /dev/null
+++ b/mcp-server-ssh/deploy_asr_alias_fix.cjs
@@ -0,0 +1,93 @@
+const { Client } = require('ssh2');
+const fs = require('fs');
+const path = require('path');
+
+const SSH_CONFIG = {
+  host: '119.45.10.34',
+  port: 22,
+  username: 'root',
+  password: '#xyzh%CS#2512@28',
+  readyTimeout: 10000,
+};
+
+const PROJECT = '/www/wwwroot/demo.tensorgrove.com.cn';
+const LOCAL_BASE = path.join(__dirname, '..', 'test2');
+const filesToDeploy = [
+  {
+    local: 'server/services/realtimeDialogRouting.js',
+    remote: `${PROJECT}/server/services/realtimeDialogRouting.js`,
+  },
+  {
+    local: 'server/services/nativeVoiceGateway.js',
+    remote: `${PROJECT}/server/services/nativeVoiceGateway.js`,
+  },
+];
+
+function sshExec(command, timeout = 30000) {
+  return new Promise((resolve, reject) => {
+    const conn = new Client();
+    let stdout = '';
+    let stderr = '';
+    const timer = setTimeout(() => {
+      conn.end();
+      resolve({ stdout, stderr: stderr + '\n[TIMEOUT]', code: -1 });
+    }, timeout);
+    conn.on('ready', () => {
+      conn.exec(command, (err, stream) => {
+        if (err) { clearTimeout(timer); conn.end(); return reject(err); }
+        stream.on('close', (code) => { clearTimeout(timer); conn.end(); resolve({ stdout, stderr, code }); });
+        stream.on('data', (d) => { stdout += d.toString(); });
+        stream.stderr.on('data', (d) => { stderr += d.toString(); });
+      });
+    }).on('error', (err) => { clearTimeout(timer); reject(err); }).connect(SSH_CONFIG);
+  });
+}
+
+function sshUpload(localPath, remotePath) {
+  return new Promise((resolve, reject) => {
+    const conn = new Client();
+    conn.on('ready', () => {
+      conn.sftp((err, sftp) => {
+        if (err) { conn.end(); return reject(err); }
+        const content = fs.readFileSync(localPath);
+        const ws = sftp.createWriteStream(remotePath);
+        ws.on('close', () => { conn.end(); resolve(); });
+        ws.on('error', (e) => { conn.end(); reject(e); });
+        ws.write(content);
+        ws.end();
+      });
+    }).on('error', (err) => reject(err)).connect(SSH_CONFIG);
+  });
+}
+
+async function main() {
+  console.log('=== 部署一成系统 ASR 别名修复 ===');
+  const backupDir = `${PROJECT}/server/_backup_${Date.now()}`;
+  await sshExec(`mkdir -p ${backupDir} && cp ${PROJECT}/server/services/realtimeDialogRouting.js ${PROJECT}/server/services/nativeVoiceGateway.js ${backupDir}/`);
+  console.log('备份目录:', backupDir);
+
+  for (const item of filesToDeploy) {
+    const localPath = path.join(LOCAL_BASE, item.local.replace(/\//g, path.sep));
+    await sshUpload(localPath, item.remote);
+    console.log('上传完成:', item.remote);
+  }
+
+  const restart = await sshExec('pm2 restart bigwo-server 2>&1');
+  console.log(restart.stdout);
+
+  await new Promise((r) => setTimeout(r, 3000));
+
+  const health = await sshExec('curl -s http://127.0.0.1:3012/api/health 2>&1');
+  console.log('Health:', health.stdout);
+
+  const pm2 = await sshExec('pm2 list 2>&1');
+  console.log(pm2.stdout);
+
+  const verify = await sshExec(`wc -l ${PROJECT}/server/services/realtimeDialogRouting.js ${PROJECT}/server/services/nativeVoiceGateway.js 2>&1`);
+  console.log(verify.stdout);
+}
+
+main().catch((e) => {
+  console.error('Fatal:', e.message);
+  process.exit(1);
+});
diff --git a/mcp-server-ssh/deploy_chat_switch_fix.cjs b/mcp-server-ssh/deploy_chat_switch_fix.cjs
new file mode 100644
index 0000000..a8ba925
--- /dev/null
+++ b/mcp-server-ssh/deploy_chat_switch_fix.cjs
@@ -0,0 +1,82 @@
+const { Client } = require('ssh2');
+const fs = require('fs');
+const path = require('path');
+
+const SSH_CONFIG = {
+  host: '119.45.10.34',
+  port: 22,
+  username: 'root',
+  password: '#xyzh%CS#2512@28',
+  readyTimeout: 10000,
+};
+
+const PROJECT = '/www/wwwroot/demo.tensorgrove.com.cn';
+const LOCAL_FILE = path.join(__dirname, '..', 'test2', 'server', 'services', 'realtimeDialogRouting.js');
+const REMOTE_FILE = `${PROJECT}/server/services/realtimeDialogRouting.js`;
+
+function sshExec(command, timeout = 30000) {
+  return new Promise((resolve, reject) => {
+    const conn = new Client();
+    let stdout = '';
+    let stderr = '';
+    const timer = setTimeout(() => {
+      conn.end();
+      resolve({ stdout, stderr: stderr + '\n[TIMEOUT]', code: -1 });
+    }, timeout);
+    conn.on('ready', () => {
+      conn.exec(command, (err, stream) => {
+        if (err) { clearTimeout(timer); conn.end(); return reject(err); }
+        stream.on('close', (code) => { clearTimeout(timer); conn.end(); resolve({ stdout, stderr, code }); });
+        stream.on('data', (d) => { stdout += d.toString(); });
+        stream.stderr.on('data', (d) => { stderr += d.toString(); });
+      });
+    }).on('error', (err) => { clearTimeout(timer); reject(err); }).connect(SSH_CONFIG);
+  });
+}
+
+function sshUpload(localPath, remotePath) {
+  return new Promise((resolve, reject) => {
+    const conn = new Client();
+    conn.on('ready', () => {
+      conn.sftp((err, sftp) => {
+        if (err) { conn.end(); return reject(err); }
+        const content = fs.readFileSync(localPath);
+        const ws = sftp.createWriteStream(remotePath);
+        ws.on('close', () => { conn.end(); resolve(); });
+        ws.on('error', (e) => { conn.end(); reject(e); });
+        ws.write(content);
+        ws.end();
+      });
+    }).on('error', (err) => reject(err)).connect(SSH_CONFIG);
+  });
+}
+
+async function main() {
+  console.log('=== 部署闲聊切换修复 ===');
+  const backupDir = `${PROJECT}/server/_backup_${Date.now()}`;
+  const backup = await sshExec(`mkdir -p ${backupDir} && cp ${REMOTE_FILE} ${backupDir}/`);
+  console.log('备份目录:', backupDir);
+  if (backup.stderr) console.log(backup.stderr);
+
+  await sshUpload(LOCAL_FILE, REMOTE_FILE);
+  console.log('上传完成:', REMOTE_FILE);
+
+  const restart = await sshExec('pm2 restart bigwo-server 2>&1');
+  console.log(restart.stdout);
+
+  await new Promise((r) => setTimeout(r, 3000));
+
+  const health = await sshExec('curl -s http://127.0.0.1:3012/api/health 2>&1');
+  console.log('Health:', health.stdout);
+
+  const pm2 = await sshExec('pm2 list 2>&1');
+  console.log(pm2.stdout);
+
+  const verify = await sshExec(`wc -l ${REMOTE_FILE} 2>&1`);
+  console.log(verify.stdout);
+}
+
+main().catch((e) => {
+  console.error('Fatal:', e.message);
+  process.exit(1);
+});
diff --git a/mcp-server-ssh/deploy_fix.cjs b/mcp-server-ssh/deploy_fix.cjs
new file mode 100644
index 0000000..cfe561f
--- /dev/null
+++ b/mcp-server-ssh/deploy_fix.cjs
@@ -0,0 +1,51 @@
+const { Client } = require('ssh2');
+const fs = require('fs');
+const path = require('path');
+
+const c = new Client();
+const localFile = path.join(__dirname, '..', 'test2', 'server', 'services', 'toolExecutor.js');
+const remotePath = '/www/wwwroot/demo.tensorgrove.com.cn/server/services/toolExecutor.js';
+
+const content = fs.readFileSync(localFile, 'utf8');
+
+c.on('ready', () => {
+  console.log('SSH connected, deploying toolExecutor.js...');
+  
+  // Use SFTP to write the file
+  c.sftp((err, sftp) => {
+    if (err) {
+      console.error('SFTP error:', err.message);
+      c.end();
+      return;
+    }
+    
+    const writeStream = sftp.createWriteStream(remotePath);
+    writeStream.on('close', () => {
+      console.log('File uploaded successfully.');
+      
+      // Restart PM2
+      c.exec('pm2 restart bigwo-server && sleep 2 && pm2 logs bigwo-server --nostream --lines 10', (err, s) => {
+        if (err) {
+          console.error('Restart error:', err.message);
+          c.end();
+          return;
+        }
+        let o = '';
+        s.on('data', (d) => (o += d));
+        s.stderr.on('data', (d) => (o += d));
+        s.on('close', () => {
+          console.log('PM2 restart output:\n' + o);
+          c.end();
+        });
+      });
+    });
+    
+    writeStream.on('error', (err) => {
+      console.error('Write error:', err.message);
+      c.end();
+    });
+    
+    writeStream.write(content);
+    writeStream.end();
+  });
+}).connect({ host: '119.45.10.34', port: 22, username: 'root', password: '#xyzh%CS#2512@28' });
diff --git a/mcp-server-ssh/deploy_fixes.cjs b/mcp-server-ssh/deploy_fixes.cjs
new file mode 100644
index 0000000..e302bda
--- /dev/null
+++ b/mcp-server-ssh/deploy_fixes.cjs
@@ -0,0 +1,55 @@
+const { Client } = require('ssh2');
+const fs = require('fs');
+const path = require('path');
+
+const c = new Client();
+const REMOTE_BASE = '/www/wwwroot/demo.tensorgrove.com.cn/server/services';
+
+// Read local files
+const gatewayPath = path.join(__dirname, '..', 'test2', 'server', 'services', 'nativeVoiceGateway.js');
+const toolExecPath = path.join(__dirname, '..', 'test2', 'server', 'services', 'toolExecutor.js');
+
+const gatewayContent = fs.readFileSync(gatewayPath, 'utf8');
+const toolExecContent = fs.readFileSync(toolExecPath, 'utf8');
+
+console.log(`Gateway file size: ${gatewayContent.length} bytes`);
+console.log(`ToolExecutor file size: ${toolExecContent.length} bytes`);
+
+c.on('ready', () => {
+  console.log('SSH connected, starting SFTP...');
+  c.sftp((err, sftp) => {
+    if (err) { console.error('SFTP error:', err); c.end(); return; }
+
+    let done = 0;
+    const total = 2;
+    function checkDone() {
+      done++;
+      if (done >= total) {
+        console.log('All files uploaded. Restarting PM2...');
+        c.exec('cd /www/wwwroot/demo.tensorgrove.com.cn && pm2 restart bigwo-server && sleep 2 && pm2 logs bigwo-server --lines 20 --nostream', (err2, s) => {
+          if (err2) { console.error('Restart error:', err2); c.end(); return; }
+          let o = '';
+          s.on('data', (d) => (o += d));
+          s.stderr.on('data', (d) => (o += d));
+          s.on('close', () => {
+            console.log('=== PM2 Restart Output ===');
+            console.log(o);
+            c.end();
+          });
+        });
+      }
+    }
+
+    // Upload nativeVoiceGateway.js
+    const ws1 = sftp.createWriteStream(`${REMOTE_BASE}/nativeVoiceGateway.js`);
+    ws1.on('close', () => { console.log('✓ nativeVoiceGateway.js uploaded'); checkDone(); });
+    ws1.on('error', (e) => { console.error('Upload gateway error:', e); });
+    ws1.end(gatewayContent);
+
+    // Upload toolExecutor.js
+    const ws2 = sftp.createWriteStream(`${REMOTE_BASE}/toolExecutor.js`);
+    ws2.on('close', () => { console.log('✓ toolExecutor.js uploaded'); checkDone(); });
+    ws2.on('error', (e) => { console.error('Upload toolExec error:', e); });
+    ws2.end(toolExecContent);
+  });
+}).connect({ host: '119.45.10.34', port: 22, username: 'root', password: '#xyzh%CS#2512@28' });
diff --git a/mcp-server-ssh/deploy_voice_fix.cjs b/mcp-server-ssh/deploy_voice_fix.cjs
new file mode 100644
index 0000000..2a84b75
--- /dev/null
+++ b/mcp-server-ssh/deploy_voice_fix.cjs
@@ -0,0 +1,30 @@
+const { Client } = require('ssh2');
+const fs = require('fs');
+const path = require('path');
+
+const c = new Client();
+const localFile = path.join(__dirname, '..', 'test2', 'server', 'services', 'nativeVoiceGateway.js');
+const remotePath = '/www/wwwroot/demo.tensorgrove.com.cn/server/services/nativeVoiceGateway.js';
+
+const content = fs.readFileSync(localFile, 'utf8');
+
+c.on('ready', () => {
+  console.log('SSH connected, deploying nativeVoiceGateway.js...');
+  c.sftp((err, sftp) => {
+    if (err) { console.error('SFTP error:', err.message); c.end(); return; }
+    const ws = sftp.createWriteStream(remotePath);
+    ws.on('close', () => {
+      console.log('File uploaded successfully.');
+      c.exec('pm2 restart bigwo-server && sleep 2 && pm2 logs bigwo-server --nostream --lines 5', (err, s) => {
+        if (err) { console.error('Restart error:', err.message); c.end(); return; }
+        let o = '';
+        s.on('data', (d) => (o += d));
+        s.stderr.on('data', (d) => (o += d));
+        s.on('close', () => { console.log('PM2 restart:\n' + o); c.end(); });
+      });
+    });
+    ws.on('error', (err) => { console.error('Write error:', err.message); c.end(); });
+    ws.write(content);
+    ws.end();
+  });
+}).connect({ host: '119.45.10.34', port: 22, username: 'root', password: '#xyzh%CS#2512@28' });
diff --git a/mcp-server-ssh/deploy_voice_kb_fix.cjs b/mcp-server-ssh/deploy_voice_kb_fix.cjs
new file mode 100644
index 0000000..54f87b5
--- /dev/null
+++ b/mcp-server-ssh/deploy_voice_kb_fix.cjs
@@ -0,0 +1,141 @@
+const { Client } = require('ssh2');
+const fs = require('fs');
+const path = require('path');
+
+const SSH_CONFIG = {
+  host: '119.45.10.34',
+  port: 22,
+  username: 'root',
+  password: '#xyzh%CS#2512@28',
+  readyTimeout: 10000,
+};
+
+const PROJECT = '/www/wwwroot/demo.tensorgrove.com.cn';
+const LOCAL_BASE = path.join(__dirname, '..', 'test2');
+
+function sshExec(command, timeout = 30000) {
+  return new Promise((resolve, reject) => {
+    const conn = new Client();
+    let stdout = '';
+    let stderr = '';
+    const timer = setTimeout(() => {
+      conn.end();
+      resolve({ stdout, stderr: stderr + '\n[TIMEOUT]', code: -1 });
+    }, timeout);
+    conn.on('ready', () => {
+      conn.exec(command, (err, stream) => {
+        if (err) { clearTimeout(timer); conn.end(); return reject(err); }
+        stream.on('close', (code) => { clearTimeout(timer); conn.end(); resolve({ stdout, stderr, code }); });
+        stream.on('data', (d) => { stdout += d.toString(); });
+        stream.stderr.on('data', (d) => { stderr += d.toString(); });
+      });
+    }).on('error', (err) => { clearTimeout(timer); reject(err); }).connect(SSH_CONFIG);
+  });
+}
+
+function sshUpload(localPath, remotePath) {
+  return new Promise((resolve, reject) => {
+    const conn = new Client();
+    conn.on('ready', () => {
+      conn.sftp((err, sftp) => {
+        if (err) { conn.end(); return reject(err); }
+        const content = fs.readFileSync(localPath);
+        const ws = sftp.createWriteStream(remotePath);
+        ws.on('close', () => { conn.end(); resolve(); });
+        ws.on('error', (e) => { conn.end(); reject(e); });
+        ws.write(content);
+        ws.end();
+      });
+    }).on('error', (err) => reject(err)).connect(SSH_CONFIG);
+  });
+}
+
+const filesToDeploy = [
+  // 服务端文件
+  { local: 'server/services/toolExecutor.js', remote: `${PROJECT}/server/services/toolExecutor.js`, desc: '知识库回答精准度修复' },
+  { local: 'server/services/nativeVoiceGateway.js', remote: `${PROJECT}/server/services/nativeVoiceGateway.js`, desc: '语音连接提前ready+超时兜底' },
+  // 客户端构建产物
+  { local: 'client/dist/index.html', remote: `${PROJECT}/client/dist/index.html`, desc: '客户端入口' },
+  { local: 'client/dist/assets/index-DFs3zFyd.css', remote: `${PROJECT}/client/dist/assets/index-DFs3zFyd.css`, desc: '客户端样式' },
+  { local: 'client/dist/assets/index-DiJ8zsnj.js', remote: `${PROJECT}/client/dist/assets/index-DiJ8zsnj.js`, desc: '客户端JS(含getUserMedia并行化+超时)' },
+];
+
+async function main() {
+  console.log('=== 语音通话延迟修复 + 知识库精准度修复 部署 ===\n');
+
+  // 1. 备份
+  console.log('--- 1. 备份服务器文件 ---');
+  const backupDir = `${PROJECT}/server/_backup_${Date.now()}`;
+  const backupCmd = [
+    `mkdir -p ${backupDir}`,
+    `cp ${PROJECT}/server/services/toolExecutor.js ${backupDir}/`,
+    `cp ${PROJECT}/server/services/nativeVoiceGateway.js ${backupDir}/`,
+    `mkdir -p ${backupDir}/client_dist_assets`,
+    `cp -r ${PROJECT}/client/dist/assets/* ${backupDir}/client_dist_assets/ 2>/dev/null || true`,
+    `cp ${PROJECT}/client/dist/index.html ${backupDir}/client_dist_index.html 2>/dev/null || true`,
+  ].join(' && ');
+  const backupResult = await sshExec(backupCmd);
+  console.log(`备份目录: ${backupDir}`);
+  if (backupResult.stderr && !backupResult.stderr.includes('true')) console.log(backupResult.stderr);
+
+  // 2. 确保远程目录存在
+  console.log('\n--- 2. 确保目录存在 ---');
+  await sshExec(`mkdir -p ${PROJECT}/client/dist/assets`);
+  console.log('OK');
+
+  // 3. 清理旧的客户端资源文件
+  console.log('\n--- 3. 清理旧客户端资源 ---');
+  const cleanResult = await sshExec(`rm -f ${PROJECT}/client/dist/assets/index-*.js ${PROJECT}/client/dist/assets/index-*.css 2>&1`);
+  console.log(cleanResult.stdout || 'OK');
+
+  // 4. 上传文件
+  console.log('\n--- 4. 上传文件 ---');
+  for (const { local, remote, desc } of filesToDeploy) {
+    const localPath = path.join(LOCAL_BASE, local.replace(/\//g, path.sep));
+    try {
+      if (!fs.existsSync(localPath)) {
+        console.log(`⚠️  跳过 ${local} (本地文件不存在)`);
+        continue;
+      }
+      await sshUpload(localPath, remote);
+      const size = fs.statSync(localPath).size;
+      console.log(`✅ ${local} → ${remote} (${size}B) [${desc}]`);
+    } catch (e) {
+      console.error(`❌ ${local}: ${e.message}`);
+    }
+  }
+
+  // 5. 重启 PM2
+  console.log('\n--- 5. 重启 PM2 ---');
+  const restart = await sshExec('pm2 restart bigwo-server 2>&1');
+  console.log(restart.stdout);
+
+  // 6. 等待检查
+  console.log('--- 6. 等待3秒后检查 ---');
+  await new Promise(r => setTimeout(r, 3000));
+
+  const health = await sshExec('curl -s http://127.0.0.1:3012/api/health 2>&1');
+  console.log('Health:', health.stdout);
+
+  const pm2 = await sshExec('pm2 list 2>&1');
+  console.log(pm2.stdout);
+
+  // 7. 检查启动日志
+  console.log('--- 7. 启动日志 ---');
+  const logs = await sshExec('pm2 logs bigwo-server --nostream --lines 15 2>&1');
+  console.log(logs.stdout);
+  if (logs.stderr) console.log(logs.stderr);
+
+  // 8. 验证文件
+  console.log('--- 8. 验证文件行数 ---');
+  const wc = await sshExec(`wc -l ${PROJECT}/server/services/toolExecutor.js ${PROJECT}/server/services/nativeVoiceGateway.js 2>&1`);
+  console.log(wc.stdout);
+
+  const lsAssets = await sshExec(`ls -la ${PROJECT}/client/dist/assets/ 2>&1`);
+  console.log('客户端资源文件:');
+  console.log(lsAssets.stdout);
+
+  console.log('\n=== 部署完成 ===');
+}
+
+main().catch(e => { console.error('Fatal:', e.message); process.exit(1); });
diff --git a/mcp-server-ssh/e2e_test.cjs b/mcp-server-ssh/e2e_test.cjs
new file mode 100644
index 0000000..af6a619
--- /dev/null
+++ b/mcp-server-ssh/e2e_test.cjs
@@ -0,0 +1,87 @@
+const https = require('https');
+
+const BASE = 'https://demo.tensorgrove.com.cn';
+
+function post(path, body) {
+  return new Promise((resolve, reject) => {
+    const url = new URL(path, BASE);
+    const data = JSON.stringify(body);
+    const req = https.request(url, {
+      method: 'POST',
+      headers: { 'Content-Type': 'application/json', 'Content-Length': Buffer.byteLength(data) },
+      timeout: 60000,
+    }, (res) => {
+      let chunks = '';
+      res.on('data', (d) => chunks += d);
+      res.on('end', () => {
+        try { resolve(JSON.parse(chunks)); } catch { resolve(chunks); }
+      });
+    });
+    req.on('error', reject);
+    req.on('timeout', () => { req.destroy(); reject(new Error('timeout')); });
+    req.write(data);
+    req.end();
+  });
+}
+
+const TESTS = [
+  { q: '我们公司的产品有哪些', expect: 'kb', desc: '泛产品查询' },
+  { q: '基础三合一是什么', expect: 'kb', desc: '基础三合一' },
+  { q: '火炉原理是什么', expect: 'kb', desc: '火炉原理' },
+  { q: '一程系统的基础三合一是什么', expect: 'kb', desc: '一程系统基础三合一' },
+  { q: '我们公司卖手机和平板吗', expect: 'chat', desc: '手机平板(应走Coze)' },
+];
+
+async function runTests() {
+  // Create a session first
+  let sessionId;
+  try {
+    const startRes = await post('/api/chat/start', { userId: 'e2e_test_' + Date.now() });
+    sessionId = startRes.sessionId;
+    console.log('Session:', sessionId);
+  } catch (e) {
+    console.error('Failed to create session:', e.message);
+    return;
+  }
+
+  const results = [];
+  for (const test of TESTS) {
+    try {
+      const sid = 'e2e_' + Date.now() + '_' + Math.random().toString(36).slice(2, 6);
+      await post('/api/chat/start', { sessionId: sid });
+      const res = await post('/api/chat/send', { sessionId: sid, message: test.q });
+      const reply = (res.data && res.data.content) || res.reply || '';
+      const replyShort = reply.slice(0, 100);
+      
+      // Check for hallucination indicators
+      const hasHallucination = /(手机|平板|笔记本|智能手表|护肤品|彩妆|香水|化妆品|电视|冰箱|洗衣机)/i.test(reply);
+      const hasPMContent = /(PM|FitLine|细胞营养|Activize|Basics|Restorate|NTC|火炉|阿育吠陀|一成系统|基础套装|大白|小红|小白|儿童倍适|营养)/i.test(reply);
+      
+      let status = '✅';
+      if (test.expect === 'kb' && hasHallucination) status = '❌幻觉';
+      else if (test.expect === 'kb' && !hasPMContent) status = '⚠️无PM内容';
+      
+      results.push({ desc: test.desc, q: test.q, status, reply: replyShort });
+      console.log(`${status} [${test.desc}] ${test.q} → ${replyShort}`);
+    } catch (e) {
+      results.push({ desc: test.desc, q: test.q, status: '❌ERROR', reply: e.message });
+      console.log(`❌ [${test.desc}] ${test.q} → ERROR: ${e.message}`);
+    }
+  }
+  
+  console.log('\n=== 测试总结 ===');
+  const pass = results.filter(r => r.status === '✅').length;
+  const warn = results.filter(r => r.status.startsWith('⚠️')).length;
+  const fail = results.filter(r => r.status.startsWith('❌')).length;
+  console.log(`通过: ${pass}, 警告: ${warn}, 失败: ${fail}, 总计: ${results.length}`);
+  
+  if (warn + fail > 0) {
+    console.log('\n=== 问题详情 ===');
+    results.filter(r => r.status !== '✅').forEach(r => {
+      console.log(`${r.status} [${r.desc}] ${r.q}`);
+      console.log(`  回答: ${r.reply}`);
+    });
+  }
+}
+
+runTests().catch(e => console.error('Fatal:', e));
diff --git a/mcp-server-ssh/verify_scenarios.cjs b/mcp-server-ssh/verify_scenarios.cjs
new file mode 100644
index 0000000..d93c117
--- /dev/null
+++ b/mcp-server-ssh/verify_scenarios.cjs
@@ -0,0 +1,156 @@
+/**
+ * 本地模拟多场景验证：toolExecutor.js 修复后的路由和分类逻辑
+ */
+const path = require('path');
+
+// 模拟环境变量（模拟服务器配置）
+process.env.VOLC_ARK_ENDPOINT_ID = 'ep-xxx';
+process.env.VOLC_ARK_API_KEY = 'fake-key';
+process.env.VOLC_ARK_KNOWLEDGE_BASE_IDS = 'kb-f94cc30193b3b707,kb-a69b0928e1714de7,kb-a6c238e38ca81478,kb-149300b22195d2bf,kb-c7e7cd2bf0580fa0,kb-177fb1d978d88e0e';
+process.env.VOLC_ARK_KNOWLEDGE_BASE_ROUTING = JSON.stringify([
+  {"name":"product","dataset_ids":["kb-f94cc30193b3b707"],"keywords":["pm产品","fitline","pm-fitline","产品","细胞营养素","activize","oxyplus","basics","restorate","儿童倍适","ntc","营养保送","小红产品","大白产品","小白产品","火炉原理","阿育吠陀","成分","功效","吃法","用法","服用","好转反应","活动","促销","分数"]},
+  {"name":"company","dataset_ids":["kb-a69b0928e1714de7"],"keywords":["pm公司","德国pm公司","公司","地址","电话","联系方式","实力","背景","成立","总部","分公司"]},
+  {"name":"training","dataset_ids":["kb-a6c238e38ca81478"],"keywords":["培训","新人","起步三关","精品会议","会议组织","成长上总裁","团队培训","新人入门"]},
+  {"name":"investment","dataset_ids":["kb-149300b22195d2bf"],"keywords":["招商","代理","代理商","合作","加盟","招募","事业机会","创业","招商稿"]},
+  {"name":"system","dataset_ids":["kb-c7e7cd2bf0580fa0"],"keywords":["一成系统","ai众享","数字化工作室","盛咖学愿","系统","邀约话术","文化解析","ai赋能","团队发展"]},
+  {"name":"general","dataset_ids":["kb-177fb1d978d88e0e"],"keywords":["一成ai","ai落地","转观念","对比","综合知识库"]}
+]);
+
+// 加载修复后的 toolExecutor
+const ToolExecutor = require(path.join(__dirname, '..', 'test2', 'server', 'services', 'toolExecutor'));
+
+console.log('====== 多场景逻辑验证 ======\n');
+
+// 场景定义
+const scenarios = [
+  {
+    name: '场景1: 德国PM基础三合一（截图问题）',
+    query: '给我介绍一下德国PM的基础三合一吧？',
+    context: [],
+    expectRoute: 'product',
+    expectDeterministic: '德国PM细胞营养素 基础套装 大白 小红 小白',
+  },
+  {
+    name: '场景2: 我们公司的产品（上下文有基础套装）',
+    query: '介绍一下我们公司的产品。',
+    context: [
+      { role: 'user', content: '基础三合一是什么？' },
+      { role: 'assistant', content: '德国PM细胞营养素基础套装包括大白、小红、小白三款产品。' },
+    ],
+    expectRoute: 'product',
+    expectDeterministic: '德国PM FitLine 细胞营养素产品 大白Basics 小红Activize 小白Restorate 儿童倍适',
+  },
+  {
+    name: '场景3: 德国PM公司介绍（纯公司查询）',
+    query: '介绍一下德国PM公司',
+    context: [],
+    expectRoute: 'company',
+  },
+  {
+    name: '场景4: 德国PM产品（产品+德国PM混合）',
+    query: '德国PM的产品有哪些',
+    context: [],
+    expectRoute: 'product',
+  },
+  {
+    name: '场景5: 一成系统（系统优先路由）',
+    query: '一成系统是什么',
+    context: [],
+    expectRoute: 'system',
+  },
+  {
+    name: '场景6: 河南胡辣汤（闲聊，不走知识库）',
+    query: '河南胡辣汤',
+    context: [],
+    expectRoute: 'default_or_none',
+  },
+  {
+    name: '场景7: 追问"这个怎么用"（上下文有小红产品）',
+    query: '这个怎么用',
+    context: [
+      { role: 'user', content: '小红产品是什么？' },
+      { role: 'assistant', content: 'Activize Oxyplus 是...' },
+    ],
+    expectDeterministic: 'Fitline小红产品提升能量原理',
+  },
+  {
+    name: '场景8: classifyKnowledgeAnswer - 未命中模式1',
+    query: 'test',
+    classifyContent: '关于PM细胞营养素基础套装，目前我这边没有找到这三个产品的具体成分和功效说明。建议你直接查看产品包装上的详细信息，或联系官方客服获取准确的使用指导。',
+    expectHit: false,
+  },
+  {
+    name: '场景9: classifyKnowledgeAnswer - 未命中模式2',
+    query: 'test',
+    classifyContent: '我没有找到德国PM细胞营养素基础三合一的相关介绍。你是想了解它的成分、功效，还是使用方法呢？',
+    expectHit: false,
+  },
+  {
+    name: '场景10: classifyKnowledgeAnswer - 正常命中',
+    query: 'test',
+    classifyContent: 'PM细胞营养素基础套装包含大白Basics、小红Activize和小白Restorate三款产品，通过NTC营养保送系统发挥协同作用。',
+    expectHit: true,
+  },
+  {
+    name: '场景11: 招商合作',
+    query: '怎么加盟代理',
+    context: [],
+    expectRoute: 'investment',
+  },
+  {
+    name: '场景12: 新人培训',
+    query: '新人起步三关是什么',
+    context: [],
+    expectRoute: 'training',
+  },
+];
+
+let passed = 0;
+let failed = 0;
+
+for (const s of scenarios) {
+  console.log(`--- ${s.name} ---`);
+  
+  // 测试 classifyKnowledgeAnswer
+  if (s.classifyContent !== undefined) {
+    const result = ToolExecutor.classifyKnowledgeAnswer(s.query, s.classifyContent);
+    const ok = result.hit === s.expectHit;
+    console.log(`  classify hit=${result.hit} reason=${result.reason} ${ok ? '✅' : '❌ EXPECTED hit=' + s.expectHit}`);
+    if (ok) passed++; else failed++;
+    console.log('');
+    continue;
+  }
+  
+  // 测试路由
+  const context = s.context || [];
+  const normalizedQuery = ToolExecutor.normalizeKnowledgeQueryAlias(s.query);
+  const anchored = ToolExecutor.applyKnowledgeQueryAnchor(normalizedQuery);
+  const deterministicQuery = ToolExecutor.buildDeterministicKnowledgeQuery(anchored, context);
+  const effectiveQuery = deterministicQuery || anchored;
+  const kbTarget = ToolExecutor.selectKnowledgeBaseTargets(effectiveQuery, context);
+  
+  console.log(`  normalized: "${normalizedQuery}"`);
+  console.log(`  deterministic: "${deterministicQuery}"`);
+  console.log(`  effective: "${effectiveQuery}"`);
+  console.log(`  routes: [${kbTarget.matchedRoutes.join(', ')}]`);
+  console.log(`  datasets: [${kbTarget.datasetIds.join(', ')}]`);
+  
+  if (s.expectDeterministic) {
+    const ok = deterministicQuery === s.expectDeterministic;
+    console.log(`  deterministic check: ${ok ? '✅' : '❌ EXPECTED "' + s.expectDeterministic + '"'}`);
+    if (ok) passed++; else failed++;
+  }
+  
+  if (s.expectRoute) {
+    const ok = s.expectRoute === 'default_or_none'
+      ? kbTarget.matchedRoutes.includes('default') || kbTarget.matchedRoutes.length === 0
+      : kbTarget.matchedRoutes.includes(s.expectRoute);
+    console.log(`  route check: ${ok ? '✅' : '❌ EXPECTED route=' + s.expectRoute}`);
+    if (ok) passed++; else failed++;
+  }
+  
+  console.log('');
+}
+
+console.log(`\n====== 结果：${passed} 通过, ${failed} 失败 ======`);
+if (failed > 0) process.exit(1);
diff --git a/test2/client/src/hooks/useNativeVoiceChat.js b/test2/client/src/hooks/useNativeVoiceChat.js
index 59b6cda..99c6e8a 100644
--- a/test2/client/src/hooks/useNativeVoiceChat.js
+++ b/test2/client/src/hooks/useNativeVoiceChat.js
@@ -11,28 +11,19 @@ export function useNativeVoiceChat() {
   const [duration, setDuration] = useState(0);
   const sessionRef = useRef(null);
   const timerRef = useRef(null);
-  const greetingUtteranceRef = useRef(null);
+  const greetingFallbackTimerRef = useRef(null);
+  const greetingAudioDetectedRef = useRef(false);
 
-  const stopGreeting = useCallback(() => {
-    if (typeof window !== 'undefined' && 'speechSynthesis' in window) {
-      window.speechSynthesis.cancel();
+  const clearGreetingFallback = useCallback(() => {
+    if (greetingFallbackTimerRef.current) {
+      clearTimeout(greetingFallbackTimerRef.current);
+      greetingFallbackTimerRef.current = null;
     }
-    greetingUtteranceRef.current = null;
   }, []);
 
-  const playGreeting = useCallback((text) => {
-    const greetingText = String(text || '').trim();
-    if (!greetingText || typeof window === 'undefined' || !('speechSynthesis' in window) || typeof window.SpeechSynthesisUtterance === 'undefined') {
-      return;
-    }
-    stopGreeting();
-    const utterance = new window.SpeechSynthesisUtterance(greetingText);
-    utterance.lang = 'zh-CN';
-    utterance.rate = 1;
-    utterance.pitch = 1;
-    greetingUtteranceRef.current = utterance;
-    window.speechSynthesis.speak(utterance);
-  }, [stopGreeting]);
+  const stopGreeting = useCallback(() => {
+    clearGreetingFallback();
+  }, [clearGreetingFallback]);
 
   useEffect(() => {
     nativeVoiceService.on('onSubtitle', (subtitle) => {
@@ -45,21 +36,60 @@ export function useNativeVoiceChat() {
         const finals = prev.filter((s) => s.isFinal);
         return [...finals, subtitle];
       });
+      if (subtitle?.role === 'assistant' && subtitle?.isFinal && /^greeting_/.test(String(subtitle.sequence || ''))) {
+        clearGreetingFallback();
+        greetingAudioDetectedRef.current = false;
+        greetingFallbackTimerRef.current = setTimeout(() => {
+          if (!greetingAudioDetectedRef.current) {
+            nativeVoiceService.requestGreetingReplay();
+          }
+          greetingFallbackTimerRef.current = null;
+        }, 4000);
+      }
     });
 
     nativeVoiceService.on('onConnectionStateChange', setConnectionState);
     nativeVoiceService.on('onError', (err) => setError(err?.message || 'Native voice error'));
+    nativeVoiceService.on('onDiagnostic', (diag) => {
+      if (!diag) return;
+      if (diag.type === 'audio_chunk') {
+        greetingAudioDetectedRef.current = true;
+        clearGreetingFallback();
+        return;
+      }
+      if (diag.type === 'ws_message' && diag.payload?.type === 'tts_event' && diag.payload?.payload?.tts_type === 'chat_tts_text') {
+        greetingAudioDetectedRef.current = true;
+        clearGreetingFallback();
+      }
+    });
+    nativeVoiceService.on('onIdleTimeout', (timeout) => {
+      const mins = Math.round((timeout || 300000) / 60000);
+      console.log(`[useNativeVoiceChat] Idle timeout (${mins}min), auto disconnecting`);
+      setError(`通话已空闲${mins}分钟，已自动退出`);
+      nativeVoiceService.disconnect();
+      setIsActive(false);
+      setIsMuted(false);
+      setConnectionState('disconnected');
+      if (timerRef.current) {
+        clearInterval(timerRef.current);
+        timerRef.current = null;
+      }
+      sessionRef.current = null;
+    });
 
     return () => {
       stopGreeting();
       nativeVoiceService.disconnect();
       if (timerRef.current) clearInterval(timerRef.current);
     };
-  }, [stopGreeting]);
+  }, [clearGreetingFallback, stopGreeting]);
 
   const start = useCallback(async (options = {}) => {
     setError(null);
     setIsConnecting(true);
+    greetingAudioDetectedRef.current = false;
+    clearGreetingFallback();
+    stopGreeting();
 
     try {
       const userId = `user_${Date.now().toString(36)}`;
@@ -74,12 +104,12 @@ export function useNativeVoiceChat() {
         speakingStyle: options.speakingStyle,
         modelVersion: options.modelVersion,
         speaker: options.speaker,
+        greetingText: options.greetingText,
       });
 
       setIsActive(true);
       setSubtitles([]);
       setDuration(0);
-      playGreeting(options.greetingText);
       timerRef.current = setInterval(() => {
         setDuration((d) => d + 1);
       }, 1000);
@@ -93,7 +123,7 @@ export function useNativeVoiceChat() {
     } finally {
       setIsConnecting(false);
     }
-  }, []);
+  }, [clearGreetingFallback, stopGreeting]);
 
   const stop = useCallback(async () => {
     let result = { sessionId: null, subtitles: [] };
diff --git a/test2/client/src/services/nativeVoiceService.js b/test2/client/src/services/nativeVoiceService.js
index f6d514f..f84cf95 100644
--- a/test2/client/src/services/nativeVoiceService.js
+++ b/test2/client/src/services/nativeVoiceService.js
@@ -18,6 +18,7 @@ class NativeVoiceService {
       onError: null,
       onAssistantPending: null,
       onDiagnostic: null,
+      onIdleTimeout: null,
     };
   }
 
@@ -76,7 +77,7 @@ class NativeVoiceService {
     }
   }
 
-  async connect({ sessionId, userId, botName, systemRole, speakingStyle, modelVersion, speaker }) {
+  async connect({ sessionId, userId, botName, systemRole, speakingStyle, modelVersion, speaker, greetingText }) {
     await this.disconnect();
     const wsUrl = this.resolveWebSocketUrl(sessionId, userId);
     this.emitConnectionState('connecting');
@@ -86,6 +87,22 @@ class NativeVoiceService {
     }
     this.playbackTime = this.playbackContext.currentTime;
 
+    // 并行: 同时预获取麦克风和建立WS连接，节省500ms+
+    const micPromise = navigator.mediaDevices.getUserMedia({
+      audio: {
+        channelCount: 1,
+        noiseSuppression: true,
+        echoCancellation: true,
+        autoGainControl: true,
+      },
+      video: false,
+    }).catch((err) => {
+      console.warn('[NativeVoice] Pre-fetch getUserMedia failed:', err.message);
+      return null;
+    });
+
+    const CONNECTION_TIMEOUT_MS = 12000;
+
     await new Promise((resolve, reject) => {
       this.readyResolver = resolve;
       this.readyRejector = reject;
@@ -93,6 +110,18 @@ class NativeVoiceService {
       ws.binaryType = 'arraybuffer';
       this.ws = ws;
 
+      // 超时兜底：避免无限等待
+      const timeoutId = setTimeout(() => {
+        if (this.readyResolver) {
+          console.warn(`[NativeVoice] Connection timeout (${CONNECTION_TIMEOUT_MS}ms), forcing ready`);
+          this.readyResolver();
+          this.readyResolver = null;
+          this.readyRejector = null;
+        }
+      }, CONNECTION_TIMEOUT_MS);
+
+      const clearTimeoutOnSettle = () => clearTimeout(timeoutId);
+
       ws.onopen = () => {
         this.emitConnectionState('connected');
         ws.send(JSON.stringify({
@@ -104,10 +133,12 @@ class NativeVoiceService {
           speakingStyle,
           modelVersion,
           speaker,
+          greetingText,
         }));
       };
 
       ws.onerror = () => {
+        clearTimeoutOnSettle();
         const error = new Error('WebSocket connection failed');
         this.callbacks.onError?.(error);
         this.readyRejector?.(error);
@@ -117,6 +148,7 @@ class NativeVoiceService {
       };
 
       ws.onclose = () => {
+        clearTimeoutOnSettle();
         this.emitConnectionState('disconnected');
         if (this.readyRejector) {
           this.readyRejector(new Error('WebSocket closed before ready'));
@@ -127,14 +159,20 @@ class NativeVoiceService {
 
       ws.onmessage = (event) => {
         if (typeof event.data === 'string') {
-          this.handleJsonMessage(event.data);
+          const peek = event.data;
+          if (peek.includes('"ready"')) {
+            clearTimeoutOnSettle();
+          }
+          this.handleJsonMessage(peek);
           return;
         }
         this.handleAudioMessage(event.data);
       };
     });
 
-    await this.startCapture();
+    // 使用预获取的mediaStream（已并行获取），避免重复申请
+    const preFetchedStream = await micPromise;
+    await this.startCapture(preFetchedStream);
   }
 
   handleJsonMessage(raw) {
@@ -164,6 +202,14 @@ class NativeVoiceService {
         this.callbacks.onAssistantPending?.(!!msg.active);
         return;
       }
+      if (msg.type === 'idle_timeout') {
+        this.callbacks.onIdleTimeout?.(msg.timeout || 300000);
+        return;
+      }
+      if (msg.type === 'upstream_closed') {
+        this.callbacks.onError?.(new Error('语音服务已断开，请重新开始通话'));
+        return;
+      }
       if (msg.type === 'error') {
         this.callbacks.onError?.(new Error(msg.error || 'native voice error'));
         return;
@@ -206,8 +252,8 @@ class NativeVoiceService {
     this.emitDiagnostic('audio_chunk', { samples: pcm16.length, duration: audioBuffer.duration });
   }
 
-  async startCapture() {
-    this.mediaStream = await navigator.mediaDevices.getUserMedia({
+  async startCapture(preFetchedStream) {
+    this.mediaStream = preFetchedStream || await navigator.mediaDevices.getUserMedia({
       audio: {
         channelCount: 1,
         noiseSuppression: true,
@@ -274,6 +320,13 @@ class NativeVoiceService {
     });
   }
 
+  requestGreetingReplay() {
+    if (this.ws && this.ws.readyState === WebSocket.OPEN) {
+      this.ws.send(JSON.stringify({ type: 'replay_greeting' }));
+      this.emitDiagnostic('replay_greeting', { sent: true });
+    }
+  }
+
   async disconnect() {
     if (this.captureProcessor) {
       this.captureProcessor.disconnect();
diff --git a/test2/server/app.js b/test2/server/app.js
index 46364fe..e4a555e 100644
--- a/test2/server/app.js
+++ b/test2/server/app.js
@@ -109,7 +109,7 @@ app.get('/api/health', (req, res) => {
 });
 
 // 静态文件服务
-app.use(express.static('../client/dist'));
+app.use(express.static(path.join(__dirname, '../client/dist')));
 
 // 处理单页应用路由
 app.get('*', (req, res) => {
diff --git a/test2/server/db/index.js b/test2/server/db/index.js
index d69c173..36d0719 100644
--- a/test2/server/db/index.js
+++ b/test2/server/db/index.js
@@ -9,10 +9,26 @@ async function ensureColumnExists(tableName, columnName, definitionSql) {
   }
 }
 
+async function columnMatchesType(tableName, columnName, expectedType) {
+  const dbName = process.env.MYSQL_DATABASE || 'bigwo_chat';
+  const [rows] = await pool.query(
+    `SELECT COLUMN_TYPE FROM INFORMATION_SCHEMA.COLUMNS WHERE TABLE_SCHEMA=? AND TABLE_NAME=? AND COLUMN_NAME=?`,
+    [dbName, tableName, columnName]
+  );
+  if (!rows.length) return false;
+  return rows[0].COLUMN_TYPE.toLowerCase().includes(expectedType.toLowerCase());
+}
+
 async function migrateSchema() {
-  await pool.execute("ALTER TABLE `sessions` MODIFY COLUMN `mode` ENUM('voice', 'chat') DEFAULT 'chat'");
-  await pool.execute("ALTER TABLE `messages` MODIFY COLUMN `role` ENUM('user', 'assistant', 'tool', 'system') NOT NULL");
-  await pool.execute("ALTER TABLE `messages` MODIFY COLUMN `source` ENUM('voice_asr', 'voice_bot', 'voice_tool', 'chat_user', 'chat_bot') NOT NULL");
+  if (!(await columnMatchesType('sessions', 'mode', "'chat'"))) {
+    await pool.execute("ALTER TABLE `sessions` MODIFY COLUMN `mode` ENUM('voice', 'chat') DEFAULT 'chat'");
+  }
+  if (!(await columnMatchesType('messages', 'role', "'system'"))) {
+    await pool.execute("ALTER TABLE `messages` MODIFY COLUMN `role` ENUM('user', 'assistant', 'tool', 'system') NOT NULL");
+  }
+  if (!(await columnMatchesType('messages', 'source', "'chat_bot'"))) {
+    await pool.execute("ALTER TABLE `messages` MODIFY COLUMN `source` ENUM('voice_asr', 'voice_bot', 'voice_tool', 'chat_user', 'chat_bot') NOT NULL");
+  }
   await ensureColumnExists('messages', 'tool_name', '`tool_name` VARCHAR(64) NULL AFTER `source`');
   await ensureColumnExists('messages', 'meta_json', '`meta_json` JSON NULL AFTER `tool_name`');
   await ensureColumnExists('messages', 'created_at', '`created_at` BIGINT NULL AFTER `tool_name`');
diff --git a/test2/server/routes/chat.js b/test2/server/routes/chat.js
index ffcbf0f..76aa073 100644
--- a/test2/server/routes/chat.js
+++ b/test2/server/routes/chat.js
@@ -9,8 +9,11 @@ const db = require('../db');
 // 存储文字对话的会话状态（sessionId -> session）
 const chatSessions = new Map();
 
+const BRAND_HARMFUL_PATTERN = /传销|骗局|骗子公司|非法集资|非法经营|不正规|不合法|庞氏骗局|老鼠会|拉人头的|割韭菜/;
+const BRAND_SAFE_REPLY = '德国PM是一家1993年成立于德国的合法直销公司，获得邓白氏AAA+认证，业务覆盖100多个国家和地区。如果你想了解更多，可以问我关于PM公司的详细介绍哦。';
+
 function normalizeAssistantText(text) {
-  return String(text || '')
+  let result = String(text || '')
     .replace(/\r/g, ' ')
     .replace(/\n{2,}/g, '。')
     .replace(/\n/g, ' ')
@@ -19,6 +22,11 @@ function normalizeAssistantText(text) {
     .replace(/([。！？；，])\s*([。！？；，])/g, '$2')
     .replace(/\s+/g, ' ')
     .trim();
+  if (BRAND_HARMFUL_PATTERN.test(result)) {
+    console.warn(`[Chat][SafeGuard] blocked harmful content: ${JSON.stringify(result.slice(0, 200))}`);
+    return BRAND_SAFE_REPLY;
+  }
+  return result;
 }
 
 async function loadHandoffMessages(sessionId, voiceSubtitles = []) {
@@ -77,7 +85,13 @@ function buildInitialContextMessages(session) {
 }
 
 async function buildKnowledgeContextMessages(sessionId, session) {
-  const dbHistory = await db.getHistoryForLLM(sessionId, 20).catch(() => []);
+  const recentMessages = await db.getRecentMessages(sessionId, 20).catch(() => []);
+  const scopedMessages = session?.fromVoice && session?.handoffSummaryUsed
+    ? recentMessages.filter((item) => !/^voice_/i.test(String(item?.source || '')))
+    : recentMessages;
+  const dbHistory = scopedMessages
+    .filter((item) => item && (item.role === 'user' || item.role === 'assistant'))
+    .map((item) => ({ role: item.role, content: item.content }));
   const summary = String(session?.handoffSummary || '').trim();
   if (!summary || session?.handoffSummaryUsed) {
     return dbHistory;
@@ -98,6 +112,14 @@ function extractKnowledgeReply(result) {
   return typeof result === 'string' ? result : '';
 }
 
+function buildFastGreetingReply(message) {
+  const text = String(message || '').trim();
+  if (!/^(喂|你好|您好|嗨|哈喽|hello|hi|在吗|在不在|早上好|中午好|下午好|晚上好|早安|晚安)[，,！。？?~～\s]*[啊呀吧呢哦嗯嘛哈的了]*[！。？?~～]*$/i.test(text)) {
+    return '';
+  }
+  return '你好😊！我是大沃智能助手。你可以直接问我一成系统、德国PM产品、招商合作、营养科普等问题，我会尽量快速给你准确回复。';
+}
+
 async function tryKnowledgeReply(sessionId, session, message) {
   const text = String(message || '').trim();
   if (!text) return null;
@@ -106,6 +128,9 @@ async function tryKnowledgeReply(sessionId, session, message) {
     return null;
   }
   const result = await ToolExecutor.execute('search_knowledge', { query: text }, context);
+  if (!result?.hit) {
+    return null;
+  }
   const content = normalizeAssistantText(extractKnowledgeReply(result));
   if (!content) {
     return null;
@@ -120,6 +145,8 @@ async function tryKnowledgeReply(sessionId, session, message) {
       source: result?.source || null,
       original_query: result?.original_query || text,
       rewritten_query: result?.rewritten_query || null,
+      selected_dataset_ids: result?.selected_dataset_ids || null,
+      selected_kb_routes: result?.selected_kb_routes || null,
       hit: typeof result?.hit === 'boolean' ? result.hit : null,
       reason: result?.reason || null,
       error_type: result?.errorType || null,
@@ -188,6 +215,17 @@ router.post('/send', async (req, res) => {
     // 写入数据库：用户消息
     db.addMessage(sessionId, 'user', message, 'chat_user').catch(e => console.warn('[DB] addMessage failed:', e.message));
 
+    const fastGreetingReply = buildFastGreetingReply(message);
+    if (fastGreetingReply) {
+      db.addMessage(sessionId, 'assistant', fastGreetingReply, 'chat_bot').catch(e => console.warn('[DB] addMessage failed:', e.message));
+      return res.json({
+        success: true,
+        data: {
+          content: fastGreetingReply,
+        },
+      });
+    }
+
     const knowledgeReply = await tryKnowledgeReply(sessionId, session, message);
     if (knowledgeReply) {
       session.handoffSummaryUsed = true;
@@ -283,15 +321,21 @@ router.post('/send-stream', async (req, res) => {
   res.setHeader('X-Accel-Buffering', 'no');
   res.flushHeaders();
 
-  const knowledgeReply = await tryKnowledgeReply(sessionId, session, message);
-  if (knowledgeReply) {
-    session.handoffSummaryUsed = true;
-    db.addMessage(sessionId, 'assistant', knowledgeReply.content, 'chat_bot', 'search_knowledge', knowledgeReply.meta).catch(e => console.warn('[DB] addMessage failed:', e.message));
-    res.write(`data: ${JSON.stringify({ type: 'done', content: knowledgeReply.content })}\n\n`);
+  const fastGreetingReply = buildFastGreetingReply(message);
+  if (fastGreetingReply) {
+    db.addMessage(sessionId, 'assistant', fastGreetingReply, 'chat_bot').catch(e => console.warn('[DB] addMessage failed:', e.message));
+    res.write(`data: ${JSON.stringify({ type: 'done', content: fastGreetingReply })}\n\n`);
     return res.end();
   }
 
   try {
+    const knowledgeReply = await tryKnowledgeReply(sessionId, session, message);
+    if (knowledgeReply) {
+      session.handoffSummaryUsed = true;
+      db.addMessage(sessionId, 'assistant', knowledgeReply.content, 'chat_bot', 'search_knowledge', knowledgeReply.meta).catch(e => console.warn('[DB] addMessage failed:', e.message));
+      res.write(`data: ${JSON.stringify({ type: 'done', content: knowledgeReply.content })}\n\n`);
+      return res.end();
+    }
     // 首次对话时注入语音历史作为上下文
     const extraMessages = !session.conversationId ? buildInitialContextMessages(session) : [];
 
diff --git a/test2/server/routes/voice.js b/test2/server/routes/voice.js
index c9557e6..36850ba 100644
--- a/test2/server/routes/voice.js
+++ b/test2/server/routes/voice.js
@@ -122,6 +122,8 @@ router.post('/direct/query', async (req, res) => {
       source: result?.source || null,
       original_query: result?.original_query || cleanQuery,
       rewritten_query: result?.rewritten_query || null,
+      selected_dataset_ids: result?.selected_dataset_ids || null,
+      selected_kb_routes: result?.selected_kb_routes || null,
       hit: typeof result?.hit === 'boolean' ? result.hit : null,
       reason: result?.reason || null,
       error_type: result?.errorType || null,
diff --git a/test2/server/services/arkChatService.js b/test2/server/services/arkChatService.js
index 4c3ea0d..71e13f5 100644
--- a/test2/server/services/arkChatService.js
+++ b/test2/server/services/arkChatService.js
@@ -9,17 +9,21 @@ class ArkChatService {
     return process.env.VOLC_ARK_API_KEY || process.env.VOLC_ACCESS_KEY_ID;
   }
 
-  _isMockMode() {
+  isMockMode() {
     const ep = process.env.VOLC_ARK_ENDPOINT_ID;
     return !ep || ep === 'your_ark_endpoint_id';
   }
 
+  _isMockMode() {
+    return this.isMockMode();
+  }
+
   /**
    * 获取方舟知识库配置（如果已配置）
    * @returns {object|null} 知识库 metadata 配置
    */
-  _getKnowledgeBaseConfig() {
-    const kbIds = process.env.VOLC_ARK_KNOWLEDGE_BASE_IDS;
+  _getKnowledgeBaseConfig(kbIdsOverride = null) {
+    const kbIds = kbIdsOverride || process.env.VOLC_ARK_KNOWLEDGE_BASE_IDS;
     if (!kbIds || kbIds === 'your_knowledge_base_dataset_id') return null;
 
     const datasetIds = kbIds.split(',').map(id => id.trim()).filter(Boolean);
@@ -83,12 +87,14 @@ class ArkChatService {
   /**
    * 非流式调用方舟 LLM
    */
-  async chat(messages, tools = []) {
+  async chat(messages, tools = [], options = {}) {
     if (this._isMockMode()) {
       console.warn('[ArkChat] EndPointId not configured, returning mock response');
       return this._mockChat(messages);
     }
 
+    const { useKnowledgeBase = false, knowledgeBaseIds = null } = options || {};
+
     const body = {
       model: process.env.VOLC_ARK_ENDPOINT_ID,
       messages,
@@ -96,8 +102,7 @@ class ArkChatService {
     };
     if (tools.length > 0) body.tools = tools;
 
-    // 注入方舟私域知识库配置
-    const kbConfig = this._getKnowledgeBaseConfig();
+    const kbConfig = useKnowledgeBase ? this._getKnowledgeBaseConfig(knowledgeBaseIds) : null;
     if (kbConfig) {
       body.metadata = { knowledge_base: kbConfig };
       console.log('[ArkChat] Knowledge base enabled:', kbConfig.dataset_ids);
@@ -138,7 +143,7 @@ class ArkChatService {
    * @param {function} onToolCall - (toolCalls: Array) => void
    * @param {function} onDone - (fullContent: string) => void
    */
-  async chatStream(messages, tools = [], { onChunk, onToolCall, onDone }) {
+  async chatStream(messages, tools = [], { onChunk, onToolCall, onDone, useKnowledgeBase = false, knowledgeBaseIds = null } = {}) {
     if (this._isMockMode()) {
       return this._mockChatStream(messages, { onChunk, onDone });
     }
@@ -150,8 +155,7 @@ class ArkChatService {
     };
     if (tools.length > 0) body.tools = tools;
 
-    // 注入方舟私域知识库配置
-    const kbConfig = this._getKnowledgeBaseConfig();
+    const kbConfig = useKnowledgeBase ? this._getKnowledgeBaseConfig(knowledgeBaseIds) : null;
     if (kbConfig) {
       body.metadata = { knowledge_base: kbConfig };
     }
diff --git a/test2/server/services/nativeVoiceGateway.js b/test2/server/services/nativeVoiceGateway.js
index 5fe5610..3ff66bd 100644
--- a/test2/server/services/nativeVoiceGateway.js
+++ b/test2/server/services/nativeVoiceGateway.js
@@ -9,10 +9,12 @@ const {
   createStartSessionMessage,
   createAudioMessage,
   createChatTTSTextMessage,
+  createSayHelloMessage,
   createChatRAGTextMessage,
 } = require('./realtimeDialogProtocol');
 const {
   getRuleBasedDirectRouteDecision,
+  normalizeKnowledgeAlias,
   normalizeTextForSpeech,
   splitTextForSpeech,
   estimateSpeechDurationMs,
@@ -46,9 +48,15 @@ function sendJson(ws, payload) {
 }
 
 function buildStartSessionPayload(options) {
+  const antiThinkingSuffix = '【重要规则】你必须直接用自然语言回答用户问题，像真人对话一样。绝对禁止输出你的思考过程、分析、计划、角色扮演指令或任何元描述。不要出现"首轮对话"、"应该回复"、"需要列举"、"语气要"、"回复后询问"等分析性语句。直接说出答案内容本身。';
+  const baseSystemRole = options.systemRole || '你使用活泼灵动的女声，性格开朗，热爱生活。你是大沃，一个德国PM健康事业的智能语音助手。你对PM-FitLine细胞营养素产品、一成系统、招商合作非常熟悉。请优先依据 external_rag 给出的内容回答，但必须用自己的话重新表达，像跟朋友聊天一样说出来，绝对不要照着念。【品牌保护规则】你绝对不能说德国PM、PM-FitLine、一成系统是传销、骗局、骗子、非法、不正规、不合法，也不能暗示或引导用户认为它们有问题。德国PM是一家1993年成立于德国的合法直销公司，获得邓白氏AAA+认证，业务覆盖100多个国家。如果用户问到传销或正规性问题，你必须正面回答PM是合法正规的直销企业，并建议用户通过知识库了解更多。';
+  const baseSpeakingStyle = options.speakingStyle || '你的语气始终活泼灵动、亲切自然，像闺蜜聊天一样。无论是自由聊天还是引用知识库内容，都保持一样的活泼语气和语调，绝不切换成播音腔、朗读语气或客服话术。';
   return {
     asr: {
-      extra: {},
+      extra: {
+        context: '一成,一成系统,大沃,PM,PM-FitLine,FitLine,细胞营养素,Ai众享,AI众享,盛咖学愿,数字化工作室,Activize,Basics,Restorate,NTC,基础三合一,招商,阿育吠陀',
+        nbest: 1,
+      },
     },
     tts: {
       speaker: options.speaker || process.env.VOLC_S2S_SPEAKER_ID || 'zh_female_vv_jupiter_bigtts',
@@ -61,11 +69,11 @@ function buildStartSessionPayload(options) {
     dialog: {
       dialog_id: '',
       bot_name: options.botName || '大沃',
-      system_role: normalizeTextForSpeech(options.systemRole || '你是大沃，一个德国PM健康事业的智能语音助手。你对PM-FitLine细胞营养素产品、一成系统、招商合作非常熟悉。请优先依据 external_rag 给出的内容回答。无论是闲聊还是引用知识库内容，都要保持一样的说话风格，不要切换成朗读语气。用户进来时请自然地打个招呼，像朋友聊天一样，不要用客服话术。'),
-      speaking_style: normalizeTextForSpeech(options.speakingStyle || '说话像朋友聊天一样自然轻松，语气亲切活泼，不要像客服念稿。即使引用知识库内容也要用聊天的语气说出来，不要切换成播音腔或朗读语气。'),
+      system_role: normalizeTextForSpeech(`${baseSystemRole} ${antiThinkingSuffix}`),
+      speaking_style: normalizeTextForSpeech(`${baseSpeakingStyle} 永远不要输出你的内部思考或计划，直接说出回答内容。`),
       extra: {
         input_mod: 'audio',
-        model: options.modelVersion || 'O',
+        model: options.modelVersion || 'SC2.0',
         strict_audit: false,
         audit_response: '抱歉，这个问题我暂时无法回答。',
       },
@@ -87,7 +95,19 @@ function extractUserText(jsonPayload) {
     || jsonPayload?.results?.[0]?.text
     || jsonPayload?.results?.[0]?.alternatives?.[0]?.text
     || '';
-  return String(text || '').trim();
+  return normalizeKnowledgeAlias(String(text || '').trim());
+}
+
+const BRAND_HARMFUL_PATTERN = /传销|骗局|骗子公司|非法集资|非法经营|不正规|不合法|庞氏骗局|老鼠会|拉人头的|割韭菜/;
+const BRAND_SAFE_REPLY = '德国PM是一家1993年成立于德国的合法直销公司，获得邓白氏AAA+认证，业务覆盖100多个国家和地区。如果你想了解更多，可以问我关于PM公司的详细介绍哦。';
+
+function sanitizeAssistantText(text) {
+  if (!text) return text;
+  if (BRAND_HARMFUL_PATTERN.test(text)) {
+    console.warn(`[NativeVoice][SafeGuard] blocked harmful content: ${JSON.stringify(text.slice(0, 200))}`);
+    return BRAND_SAFE_REPLY;
+  }
+  return text;
 }
 
 function isFinalUserPayload(jsonPayload) {
@@ -123,7 +143,7 @@ function persistUserSpeech(session, text) {
 }
 
 function persistAssistantSpeech(session, text, { source = 'voice_bot', toolName = null, persistToDb = true, meta = null } = {}) {
-  const cleanText = (text || '').trim();
+  const cleanText = sanitizeAssistantText((text || '').trim());
   if (!cleanText) return false;
   const now = Date.now();
   if (session.lastPersistedAssistantText === cleanText && now - (session.lastPersistedAssistantAt || 0) < 5000) {
@@ -250,21 +270,34 @@ async function sendSpeechText(session, speechText) {
   persistAssistantSpeech(session, greetingText, { source: 'voice_bot' });
   clearTimeout(session.greetingTimer);
   clearTimeout(session.readyTimer);
-  session.greetingTimer = setTimeout(() => {
-    session.greetingTimer = null;
-    sendSpeechText(session, greetingText)
-      .then(() => {
-        session.readyTimer = setTimeout(() => {
-          session.readyTimer = null;
-          sendReady(session);
-        }, Math.max(1200, Math.min(estimateSpeechDurationMs(greetingText) + 300, 8000)));
-      })
-      .catch((error) => {
-        session.hasSentGreeting = false;
-        sendReady(session);
-        console.warn('[NativeVoice] greeting speech failed:', error.message);
-      });
-  }, 800);
+  session.greetingSentAt = Date.now();
+  try {
+    session.upstream.send(createSayHelloMessage(session.sessionId, greetingText));
+    console.log(`[NativeVoice] sendSayHello event=300 session=${session.sessionId}`);
+  } catch (error) {
+    session.hasSentGreeting = false;
+    console.warn('[NativeVoice] SayHello failed:', error.message);
+  }
+  sendReady(session);
+}
+
+async function replayGreeting(session) {
+  const greetingText = String(session.greetingText || '').trim();
+  if (!greetingText || !session.upstream || session.upstream.readyState !== WebSocket.OPEN) {
+    return;
+  }
+  if (session.greetingSentAt && Date.now() - session.greetingSentAt < 6000) {
+    console.log(`[NativeVoice] replayGreeting skipped (too soon) session=${session.sessionId}`);
+    return;
+  }
+  console.log(`[NativeVoice] replayGreeting session=${session.sessionId} text=${JSON.stringify(greetingText.slice(0, 80))}`);
+  session.greetingSentAt = Date.now();
+  session.directSpeakUntil = Date.now() + estimateSpeechDurationMs(greetingText) + 800;
+  try {
+    session.upstream.send(createSayHelloMessage(session.sessionId, greetingText));
+  } catch (error) {
+    console.warn('[NativeVoice] replayGreeting SayHello failed:', error.message);
+  }
 }
 
 async function sendExternalRag(session, items) {
@@ -278,6 +311,31 @@ async function sendExternalRag(session, items) {
   session.upstream.send(createChatRAGTextMessage(session.sessionId, JSON.stringify(ragItems)));
 }
 
+function clearUpstreamSuppression(session) {
+  clearTimeout(session.suppressReplyTimer);
+  session.suppressReplyTimer = null;
+  session.suppressUpstreamUntil = 0;
+  session.awaitingUpstreamReply = false;
+  session.pendingAssistantSource = null;
+  session.pendingAssistantToolName = null;
+  session.pendingAssistantMeta = null;
+  session.blockUpstreamAudio = false;
+  sendJson(session.client, { type: 'assistant_pending', active: false });
+}
+
+function suppressUpstreamReply(session, durationMs) {
+  clearTimeout(session.suppressReplyTimer);
+  session.awaitingUpstreamReply = true;
+  session.suppressUpstreamUntil = Date.now() + Math.max(1000, durationMs);
+  session.suppressReplyTimer = setTimeout(() => {
+    session.suppressReplyTimer = null;
+    if ((session.suppressUpstreamUntil || 0) > Date.now()) {
+      return;
+    }
+    clearUpstreamSuppression(session);
+  }, Math.max(300, session.suppressUpstreamUntil - Date.now()));
+}
+
 async function processReply(session, text) {
   const cleanText = (text || '').trim();
   if (!cleanText) return;
@@ -296,6 +354,8 @@ async function processReply(session, text) {
   sendJson(session.client, { type: 'assistant_pending', active: true });
   const isKnowledgeCandidate = shouldForceKnowledgeRoute(cleanText);
   if (isKnowledgeCandidate) {
+    session.blockUpstreamAudio = true;
+    suppressUpstreamReply(session, 30000);
     sendJson(session.client, { type: 'tts_reset', reason: 'processing' });
   }
   console.log(`[NativeVoice] processReply start session=${session.sessionId} text=${JSON.stringify(cleanText.slice(0, 120))} blocked=${session.blockUpstreamAudio} kbCandidate=${isKnowledgeCandidate}`);
@@ -304,6 +364,7 @@ async function processReply(session, text) {
     if (delivery === 'upstream_chat') {
       if (isKnowledgeCandidate) {
         console.log(`[NativeVoice] processReply kb-nohit retrigger session=${session.sessionId}`);
+        session.discardNextAssistantResponse = true;
         await sendExternalRag(session, [{ title: '用户问题', content: cleanText }]);
       } else {
         session.blockUpstreamAudio = false;
@@ -318,14 +379,20 @@ async function processReply(session, text) {
     if (delivery === 'external_rag') {
       if (!session.blockUpstreamAudio) {
         session.blockUpstreamAudio = true;
-        sendJson(session.client, { type: 'tts_reset', reason: 'knowledge_hit' });
       }
-      session.awaitingUpstreamReply = true;
-      session.pendingAssistantSource = source;
-      session.pendingAssistantToolName = toolName;
-      session.pendingAssistantMeta = responseMeta;
-      console.log(`[NativeVoice] processReply handoff session=${session.sessionId} route=${routeDecision?.route || 'unknown'} delivery=external_rag items=${Array.isArray(ragItems) ? ragItems.length : 0}`);
-      await sendExternalRag(session, ragItems);
+      sendJson(session.client, { type: 'tts_reset', reason: 'knowledge_hit' });
+      const kbText = (ragItems || []).map((item) => item?.content || '').filter(Boolean).join('\n').trim();
+      console.log(`[NativeVoice] processReply handoff session=${session.sessionId} route=${routeDecision?.route || 'unknown'} delivery=external_rag→local_tts items=${Array.isArray(ragItems) ? ragItems.length : 0} textLen=${kbText.length}`);
+      if (kbText) {
+        session.directSpeakUntil = Date.now() + estimateSpeechDurationMs(kbText) + 800;
+        suppressUpstreamReply(session, estimateSpeechDurationMs(kbText) + 1800);
+        persistAssistantSpeech(session, kbText, { source, toolName, meta: responseMeta });
+        await sendSpeechText(session, kbText);
+      } else {
+        console.log(`[NativeVoice] processReply external_rag empty content, fallback to upstream session=${session.sessionId}`);
+        session.blockUpstreamAudio = false;
+        clearUpstreamSuppression(session);
+      }
       return;
     }
     if (!speechText) {
@@ -334,12 +401,11 @@ async function processReply(session, text) {
       session.chatTTSUntil = 0;
       return;
     }
-    console.log(`[NativeVoice] processReply resolved session=${session.sessionId} route=${routeDecision?.route || 'unknown'} delivery=local_rag source=${source} tool=${toolName || 'chat'} speechLen=${speechText.length}`);
-    session.awaitingUpstreamReply = true;
-    session.pendingAssistantSource = source;
-    session.pendingAssistantToolName = toolName;
-    session.pendingAssistantMeta = responseMeta;
-    await sendExternalRag(session, [{ title: '回复内容', content: speechText }]);
+    console.log(`[NativeVoice] processReply resolved session=${session.sessionId} route=${routeDecision?.route || 'unknown'} delivery=local_tts source=${source} tool=${toolName || 'chat'} speechLen=${speechText.length}`);
+    session.directSpeakUntil = Date.now() + estimateSpeechDurationMs(speechText) + 800;
+    suppressUpstreamReply(session, estimateSpeechDurationMs(speechText) + 1800);
+    persistAssistantSpeech(session, speechText, { source, toolName, meta: responseMeta });
+    await sendSpeechText(session, speechText);
   } catch (error) {
     console.error('[NativeVoice] processReply failed:', error.message);
     sendJson(session.client, { type: 'error', error: error.message });
@@ -386,7 +452,8 @@ function handleUpstreamMessage(session, data) {
   }
 
   if (message.type === MsgType.AUDIO_ONLY_SERVER) {
-    if (session.blockUpstreamAudio) {
+    const isSuppressingUpstreamAudio = (session.suppressUpstreamUntil || 0) > Date.now() && session.currentTtsType === 'default';
+    if (session.blockUpstreamAudio || isSuppressingUpstreamAudio) {
       if (!session._audioBlockLogOnce) {
         session._audioBlockLogOnce = true;
         console.log(`[NativeVoice] audio blocked (blockUpstream) session=${session.sessionId} ttsType=${session.currentTtsType}`);
@@ -419,6 +486,11 @@ function handleUpstreamMessage(session, data) {
     return;
   }
 
+  if (message.event === 300) {
+    console.log(`[NativeVoice] SayHello response session=${session.sessionId}`);
+    return;
+  }
+
   if (message.event === 350) {
     session.currentTtsType = payload?.tts_type || '';
     if (payload?.tts_type === 'chat_tts_text' && session.pendingGreetingAck) {
@@ -428,7 +500,10 @@ function handleUpstreamMessage(session, data) {
     }
     if (session.blockUpstreamAudio && payload?.tts_type && payload.tts_type !== 'default') {
       session.blockUpstreamAudio = false;
-      console.log(`[NativeVoice] unblock audio on ttsType=${payload.tts_type} session=${session.sessionId}`);
+      session.suppressUpstreamUntil = 0;
+      clearTimeout(session.suppressReplyTimer);
+      session.suppressReplyTimer = null;
+      console.log(`[NativeVoice] unblock audio+suppress on ttsType=${payload.tts_type} session=${session.sessionId}`);
     }
     console.log(`[NativeVoice] upstream tts_event session=${session.sessionId} ttsType=${payload?.tts_type || ''}`);
     sendJson(session.client, { type: 'tts_event', payload });
@@ -436,13 +511,21 @@ function handleUpstreamMessage(session, data) {
   }
 
   const isLocalChatTTSTextActive = !!session.isSendingChatTTSText && (session.chatTTSUntil || 0) > Date.now();
+  const isSuppressingUpstreamReply = (session.suppressUpstreamUntil || 0) > Date.now();
 
   if (message.event === 351) {
-    if (isLocalChatTTSTextActive || session.blockUpstreamAudio) {
+    if (isLocalChatTTSTextActive || session.blockUpstreamAudio || isSuppressingUpstreamReply) {
       session.assistantStreamBuffer = '';
       session.assistantStreamReplyId = '';
       return;
     }
+    if (session.discardNextAssistantResponse) {
+      session.discardNextAssistantResponse = false;
+      session.assistantStreamBuffer = '';
+      session.assistantStreamReplyId = '';
+      console.log(`[NativeVoice] discarded stale assistant response (kb-nohit retrigger) session=${session.sessionId}`);
+      return;
+    }
     const pendingAssistantSource = session.pendingAssistantSource || 'voice_bot';
     const pendingAssistantToolName = session.pendingAssistantToolName || null;
     const pendingAssistantMeta = session.pendingAssistantMeta || null;
@@ -472,7 +555,7 @@ function handleUpstreamMessage(session, data) {
   }
 
   if (message.event === 550) {
-    if (isLocalChatTTSTextActive || session.blockUpstreamAudio) {
+    if (isLocalChatTTSTextActive || session.blockUpstreamAudio || isSuppressingUpstreamReply || session.discardNextAssistantResponse) {
       return;
     }
     if (session.awaitingUpstreamReply) {
@@ -487,7 +570,7 @@ function handleUpstreamMessage(session, data) {
   }
 
   if (message.event === 559) {
-    if (isLocalChatTTSTextActive) {
+    if (isLocalChatTTSTextActive || isSuppressingUpstreamReply) {
       session.assistantStreamBuffer = '';
       session.assistantStreamReplyId = '';
       return;
@@ -498,6 +581,13 @@ function handleUpstreamMessage(session, data) {
       console.log(`[NativeVoice] blocked response ended (559), keeping block session=${session.sessionId}`);
       return;
     }
+    if (session.discardNextAssistantResponse) {
+      session.discardNextAssistantResponse = false;
+      session.assistantStreamBuffer = '';
+      session.assistantStreamReplyId = '';
+      console.log(`[NativeVoice] discarded stale stream end (559, kb-nohit retrigger) session=${session.sessionId}`);
+      return;
+    }
     session.awaitingUpstreamReply = false;
     session.blockUpstreamAudio = false;
     sendJson(session.client, { type: 'assistant_pending', active: false });
@@ -517,19 +607,23 @@ function handleUpstreamMessage(session, data) {
     if (text) {
       console.log(`[NativeVoice] upstream partial session=${session.sessionId} text=${JSON.stringify(text.slice(0, 120))}`);
       session.latestUserText = text;
-      // 用户开口说话时立即打断 AI 播放
-      if (session.directSpeakUntil && Date.now() < session.directSpeakUntil) {
-        console.log(`[NativeVoice] user barge-in (partial) session=${session.sessionId}`);
+      // 用户开口说话时立即打断所有 AI 播放（包括 S2S 默认 TTS）
+      const now = Date.now();
+      const isDirectSpeaking = session.directSpeakUntil && now < session.directSpeakUntil;
+      const isChatTTSSpeaking = session.isSendingChatTTSText && (session.chatTTSUntil || 0) > now;
+      if (isDirectSpeaking || isChatTTSSpeaking) {
+        console.log(`[NativeVoice] user barge-in (partial) session=${session.sessionId} direct=${isDirectSpeaking} chatTTS=${isChatTTSSpeaking}`);
         session.directSpeakUntil = 0;
         session.isSendingChatTTSText = false;
         session.chatTTSUntil = 0;
         clearTimeout(session.chatTTSTimer);
-        sendJson(session.client, { type: 'tts_reset', reason: 'user_bargein' });
-      } else if (session.isSendingChatTTSText && (session.chatTTSUntil || 0) > Date.now()) {
-        console.log(`[NativeVoice] user barge-in chatTTS (partial) session=${session.sessionId}`);
-        session.isSendingChatTTSText = false;
-        session.chatTTSUntil = 0;
-        clearTimeout(session.chatTTSTimer);
+        if (session.suppressReplyTimer || session.suppressUpstreamUntil) {
+          clearUpstreamSuppression(session);
+        }
+      }
+      // 无论当前是否在播放，都发送 tts_reset 确保客户端停止所有音频播放
+      if (!session._lastBargeInResetAt || now - session._lastBargeInResetAt > 500) {
+        session._lastBargeInResetAt = now;
         sendJson(session.client, { type: 'tts_reset', reason: 'user_bargein' });
       }
       sendJson(session.client, {
@@ -553,15 +647,22 @@ function handleUpstreamMessage(session, data) {
       session.chatTTSUntil = 0;
       clearTimeout(session.chatTTSTimer);
       sendJson(session.client, { type: 'tts_reset', reason: 'user_bargein' });
+      if (session.suppressReplyTimer || session.suppressUpstreamUntil) {
+        clearUpstreamSuppression(session);
+      }
     } else if (session.isSendingChatTTSText && (session.chatTTSUntil || 0) > Date.now()) {
       console.log(`[NativeVoice] user interrupt chatTTS during speaking session=${session.sessionId}`);
       session.isSendingChatTTSText = false;
       session.chatTTSUntil = 0;
       clearTimeout(session.chatTTSTimer);
       sendJson(session.client, { type: 'tts_reset', reason: 'user_bargein' });
+      if (session.suppressReplyTimer || session.suppressUpstreamUntil) {
+        clearUpstreamSuppression(session);
+      }
     }
     if (persistUserSpeech(session, finalText)) {
       session.blockUpstreamAudio = true;
+      sendJson(session.client, { type: 'tts_reset', reason: 'new_turn' });
       processReply(session, finalText).catch((error) => {
         console.error('[NativeVoice] processReply error:', error.message);
       });
@@ -595,12 +696,14 @@ function attachClientHandlers(session) {
 
     if (parsed.type === 'start') {
       session.botName = parsed.botName || '豆包';
-      session.systemRole = parsed.systemRole || '你是一个企业知识库语音助手，请优先依据 external_rag 给出的内容回答。';
+      session.systemRole = parsed.systemRole || session.systemRole || '你是一个企业知识库语音助手，请优先依据 external_rag 给出的内容回答。【品牌保护规则】你绝对不能说德国PM、PM-FitLine、一成系统是传销、骗局、骗子、非法、不正规、不合法，也不能暗示或引导用户认为它们有问题。德国PM是一家1993年成立于德国的合法直销公司，获得邓白氏AAA+认证，业务覆盖100多个国家。';
       session.speakingStyle = parsed.speakingStyle || '请使用清晰、自然、简洁的口吻。';
       session.speaker = parsed.speaker || process.env.VOLC_S2S_SPEAKER_ID || 'zh_female_vv_jupiter_bigtts';
       session.modelVersion = parsed.modelVersion || 'O';
       session.greetingText = parsed.greetingText || session.greetingText || '嗨，你好呀！我是大沃，你的专属智能助手。关于德国PM产品、一成系统、招商合作，随时问我就好～';
       session.userId = parsed.userId || session.userId || null;
+      // 立即发送 ready，不等 upstream event 150，大幅缩短前端等待时间
+      sendReady(session);
       session.upstream = createUpstreamConnection(session);
       loadHandoffSummaryForVoice(session).catch((error) => {
         console.warn('[NativeVoice] async loadHandoffSummaryForVoice failed:', error.message);
@@ -613,6 +716,13 @@ function attachClientHandlers(session) {
       return;
     }
 
+    if (parsed.type === 'replay_greeting') {
+      replayGreeting(session).catch((error) => {
+        console.warn('[NativeVoice] replayGreeting failed:', error.message);
+      });
+      return;
+    }
+
     if (parsed.type === 'text' && parsed.text) {
       persistUserSpeech(session, parsed.text);
       processReply(session, parsed.text).catch((error) => {
@@ -626,6 +736,7 @@ function attachClientHandlers(session) {
     clearTimeout(session.greetingTimer);
     clearTimeout(session.greetingAckTimer);
     clearTimeout(session.readyTimer);
+    clearTimeout(session.suppressReplyTimer);
     clearTimeout(session.idleTimer);
     if (session.upstream && session.upstream.readyState === WebSocket.OPEN) {
       session.upstream.close();
@@ -696,7 +807,7 @@ function createSession(client, sessionId) {
     assistantStreamReplyId: '',
     currentTtsType: '',
     botName: '大沃',
-    systemRole: '你是大沃，一个德国PM健康事业的智能语音助手。你对PM-FitLine细胞营养素产品、一成系统、招商合作非常熟悉。请优先依据 external_rag 给出的内容回答。用户进来时请自然地打个招呼，像朋友聊天一样，不要用客服话术。',
+    systemRole: '你是大沃，一个德国PM健康事业的智能语音助手。你对PM-FitLine细胞营养素产品、一成系统、招商合作非常熟悉。请优先依据 external_rag 给出的内容回答。用户进来时请自然地打个招呼，像朋友聊天一样，不要用客服话术。【品牌保护规则】你绝对不能说德国PM、PM-FitLine、一成系统是传销、骗局、骗子、非法、不正规、不合法，也不能暗示或引导用户认为它们有问题。德国PM是一家1993年成立于德国的合法直销公司，获得邓白氏AAA+认证，业务覆盖100多个国家。',
     speakingStyle: '说话像朋友聊天一样自然轻松，语气亲切活泼，不要像客服念稿。',
     speaker: process.env.VOLC_S2S_SPEAKER_ID || 'zh_female_vv_jupiter_bigtts',
     modelVersion: 'O',
@@ -714,8 +825,12 @@ function createSession(client, sessionId) {
     pendingAssistantSource: null,
     pendingAssistantToolName: null,
     pendingAssistantMeta: null,
+    suppressReplyTimer: null,
+    suppressUpstreamUntil: 0,
     idleTimer: null,
     lastActivityAt: Date.now(),
+    _lastBargeInResetAt: 0,
+    _audioBlockLogOnce: false,
   };
   sessions.set(sessionId, session);
   attachClientHandlers(session);
diff --git a/test2/server/services/realtimeDialogProtocol.js b/test2/server/services/realtimeDialogProtocol.js
index e257ce5..6c5e50d 100644
--- a/test2/server/services/realtimeDialogProtocol.js
+++ b/test2/server/services/realtimeDialogProtocol.js
@@ -180,6 +180,18 @@ function createChatTTSTextMessage(sessionId, payload) {
   });
 }
 
+function createSayHelloMessage(sessionId, content) {
+  return marshal({
+    type: MsgType.FULL_CLIENT,
+    typeFlag: MSG_TYPE_FLAG_WITH_EVENT,
+    event: 300,
+    sessionId,
+    payload: Buffer.from(JSON.stringify({
+      content: content || '',
+    }), 'utf8'),
+  });
+}
+
 function createChatRAGTextMessage(sessionId, externalRag) {
   return marshal({
     type: MsgType.FULL_CLIENT,
@@ -201,5 +213,6 @@ module.exports = {
   createStartSessionMessage,
   createAudioMessage,
   createChatTTSTextMessage,
+  createSayHelloMessage,
   createChatRAGTextMessage,
 };
diff --git a/test2/server/services/realtimeDialogRouting.js b/test2/server/services/realtimeDialogRouting.js
index ffb7963..0a50665 100644
--- a/test2/server/services/realtimeDialogRouting.js
+++ b/test2/server/services/realtimeDialogRouting.js
@@ -62,6 +62,34 @@ function estimateSpeechDurationMs(text) {
   return Math.max(4000, Math.min(60000, length * 180));
 }
 
+async function polishForSpeech(rawText, userQuestion) {
+  const POLISH_TIMEOUT_MS = 3000;
+  try {
+    const messages = [
+      {
+        role: 'system',
+        content: '你是一个语音播报润色助手。请将下面的知识库回答改写为自然、亲切的口语风格，像朋友聊天一样。要求：1) 保留所有关键信息和数据，不得编造；2) 去掉"根据知识库信息"等机械前缀；3) 适合语音朗读，简洁流畅；4) 控制在120字以内；5) 只输出改写后的文本，不要加引号或解释。',
+      },
+      {
+        role: 'user',
+        content: `用户问题：${userQuestion}\n\n原始回答：${rawText}`,
+      },
+    ];
+    const result = await Promise.race([
+      arkChatService.chat(messages, [], { useKnowledgeBase: false }),
+      new Promise((_, reject) => setTimeout(() => reject(new Error('polish timeout')), POLISH_TIMEOUT_MS)),
+    ]);
+    const polished = (result?.content || '').trim();
+    if (polished && polished.length >= 10) {
+      console.log(`[RealtimeRouting] polishForSpeech ok len=${polished.length} original=${rawText.length}`);
+      return polished;
+    }
+  } catch (err) {
+    console.warn('[RealtimeRouting] polishForSpeech failed:', err.message);
+  }
+  return null;
+}
+
 function buildDirectRouteMessages(session, context, userText) {
   const messages = [];
   const systemPrompt = [
@@ -110,12 +138,29 @@ function buildDirectChatMessages(session, context, userText) {
   return messages;
 }
 
+function normalizeKnowledgeAlias(text) {
+  return String(text || '')
+    .replace(/X{2}系统/gi, '一成系统')
+    .replace(/一城系统|逸城系统|一程系统|易成系统|一诚系统|亦成系统|艺成系统|溢成系统|义成系统|毅成系统|怡成系统|以成系统|已成系统|亿成系统|忆成系统|益成系统/g, '一成系统')
+    .replace(/(?<![一\u4e00-\u9fff])(一城|逸城|一程|易成|一诚|亦成|艺成|溢成|义成|毅成|怡成|以成|已成|亿成|忆成|益成)(?=系统)/g, '一成')
+    .replace(/大窝|大握|大我|大卧/g, '大沃')
+    .replace(/盛咖学院|圣咖学愿|盛咖学院|圣咖学院|盛卡学愿/g, '盛咖学愿')
+    .replace(/AI众享|Ai众享|爱众享|艾众享|哎众享/gi, 'Ai众享')
+    .replace(/暖炉原理/g, '火炉原理');
+}
+
 function hasKnowledgeKeyword(text) {
-  return /(系统|平台|产品|功能|介绍|说明|规则|流程|步骤|配置|接入|开通|操作|怎么用|如何用|适合谁|区别|价格|费用|政策|售后|文档|资料|方案|一成系统|PM公司|德国PM|公司地址|电话|联系方式|公司实力|背景|培训|新人|起步三关|精品会议|成长上总裁|招商|代理|加盟|合作|邀约话术|小红|大白|小白|Activize|Basics|Restorate|FitLine|细胞营养素|NTC|营养保送|火炉原理|阿育吠陀|Ayurveda|儿童倍适|AI落地|ai落地|转观念|科普|营养|成分|功效|基础三合一|三合一|基础套装|套装|Ai众享|数字化工作室|盛咖学愿)/i.test(text || '');
+  const normalized = normalizeKnowledgeAlias(text);
+  return /(一成系统|Ai众享|AI众享|数字化工作室|盛咖学愿|四大AI生态|四大Ai生态|三大平台|PM公司|德国PM|PM-FitLine|FitLine|PM细胞营养素|细胞营养素|小红|大白|小白|Activize|Basics|Restorate|儿童倍适|NTC|营养保送|火炉原理|暖炉原理|阿育吠陀|Ayurveda|基础三合一|三合一|基础套装|基础二合一|二合一|招商合作|招商|代理|加盟|事业机会|邀约话术|起步三关|精品会议|成长上总裁|AI落地|ai落地|转观念|好转反应|整应反应|排毒反应|副作用|不良反应|皮肤发痒|促销活动|促销|优惠|活动分数|5\+1|CC套装|CC胶囊|IB5|口腔免疫喷雾|Q10|辅酵素|Women\+|乐活|乳清蛋白|蛋白粉|乳酪煲|乳酪饮品|乳酪|倍力健|关节套装|关节舒缓|男士乳霜|去角质|面膜|发宝|叶黄素|奶昔|健康饮品|传销|骗局|骗子|正规吗|合法吗|正不正规|合不合法|是不是传销|直销还是传销|层级分销|非法集资|拉人头|下线|发展下线|报单|人头费|怎么吃|怎么服用|吃多少|服用方法|搭配|功效|成分|原料)/i.test(normalized);
 }
 
 function isKnowledgeFollowUp(text) {
-  return /^(这个|那个|它|该系统|这个系统|那个系统|这个功能|那个功能|这个产品|那个产品|这个公司|那家公司|这个政策|那个政策|这个培训|那个培训|详细|详细说说|详细查一下|展开说说|继续说|继续讲|怎么用|怎么操作|怎么配置|适合谁|有什么区别|费用多少|价格多少|怎么申请|怎么开通|是什么|什么意思|地址在哪|电话多少|联系方式|具体政策|具体内容|怎么吃|功效是什么|有什么功效|成分是什么|有什么成分|多少钱|哪里买|怎么买|配方|原理是什么|有什么好处|怎么服用|适合什么人)/.test((text || '').trim());
+  const normalized = String(text || '').trim().replace(/[，,。！？?~～\s]+$/g, '').replace(/^(那你|那再|那|你再|再来|再|麻烦你|帮我)[，,、\s]*/g, '');
+  if (!normalized) return false;
+  if (/^(详细|详细说说|详细查一下|展开说说|继续说|继续讲|介绍一下|给我介绍一下|详细介绍一下|继续介绍一下|怎么用|怎么操作|怎么配置|适合谁|有什么区别|费用多少|价格多少|怎么申请|怎么开通|是什么|什么意思|地址在哪|公司地址在哪|电话多少|公司电话多少|联系方式|公司联系方式|具体政策|具体内容|怎么吃|功效是什么|有什么功效|成分是什么|有什么成分|多少钱|哪里买|怎么买|配方|原理是什么|有什么好处|怎么服用|适合什么人)$/.test(normalized)) {
+    return true;
+  }
+  return /^(这个|那个|它|该系统|这个系统|那个系统|这个功能|那个功能|这个产品|那个产品|这个公司|那家公司|这个政策|那个政策|这个培训|那个培训)(的)?(详细|详细说说|详细查一下|展开说说|继续说|继续讲|介绍一下|给我介绍一下|详细介绍一下|继续介绍一下|怎么用|怎么操作|怎么配置|适合谁|有什么区别|费用多少|价格多少|怎么申请|怎么开通|是什么|什么意思|地址在哪|公司地址在哪|电话多少|公司电话多少|联系方式|公司联系方式|具体政策|具体内容|怎么吃|功效是什么|有什么功效|成分是什么|有什么成分|多少钱|哪里买|怎么买|配方|原理是什么|有什么好处|怎么服用|适合什么人)?$/.test(normalized);
 }
 
 function shouldForceKnowledgeRoute(userText, context = []) {
@@ -174,6 +219,9 @@ function getRuleBasedDirectRouteDecision(userText) {
   if (/^[\d\s+\-*/().=%]+$/.test(text) || /(等于多少|帮我算|计算一下|算一下)/.test(text)) {
     return { route: 'calculate', args: { expression: text.replace(/(帮我算|计算一下|算一下|等于多少)/g, '').trim() || text } };
   }
+  if (/(传销|骗局|骗子|正规吗|合法吗|正不正规|合不合法|是不是传销|直销还是传销|层级分销|非法集资|拉人头|下线|发展下线|报单|人头费)/.test(text)) {
+    return { route: 'search_knowledge', args: { query: text } };
+  }
   if (/^(喂|你好|您好|嗨|哈喽|hello|hi|在吗|在不在|早上好|中午好|下午好|晚上好|早安|晚安|谢谢|感谢|再见|拜拜|嗯|哦|好的|对|是的|没有了|没事了|可以了|行|OK|ok)[，,！。？?~～\s]*[啊呀吧呢哦嗯嘛哈的了]*[！。？?~～]*$/.test(text)) {
     return { route: 'chat', args: {} };
   }
@@ -278,7 +326,20 @@ async function resolveReply(sessionId, session, text) {
         : []);
 
     if (ragItems.length > 0) {
+      let speechText = normalizeTextForSpeech(replyText);
       session.handoffSummaryUsed = true;
+      if (toolName === 'search_knowledge' && speechText) {
+        const cleanedText = speechText.replace(/^(根据知识库信息[，,：:\s]*|根据.*?[，,]\s*)/i, '');
+        return {
+          delivery: 'external_rag',
+          speechText: '',
+          ragItems: [{ title: '知识库结果', content: cleanedText || speechText }],
+          source,
+          toolName,
+          routeDecision,
+          responseMeta,
+        };
+      }
       return {
         delivery: 'external_rag',
         speechText: '',
@@ -292,6 +353,19 @@ async function resolveReply(sessionId, session, text) {
 
     if (toolName === 'search_knowledge' && !toolResult?.hit) {
       session.handoffSummaryUsed = true;
+      // 敏感问题（传销/正规性）知识库未命中时，不交给S2S自由发挥，直接返回安全回复
+      if (/(传销|骗局|骗子|正规吗|合法吗|正不正规|合不合法|是不是传销|直销还是传销|层级分销|非法集资|拉人头|下线|发展下线|报单|人头费)/.test(originalText)) {
+        const safeReply = '德国PM是一家1993年成立于德国的合法直销公司，获得邓白氏AAA+认证，业务覆盖100多个国家和地区。它不是传销，是正规的直销企业哦。如果你想了解更多，可以问我关于PM公司或产品的详细介绍。';
+        return {
+          delivery: 'external_rag',
+          speechText: '',
+          ragItems: [{ title: '品牌保护', content: safeReply }],
+          source: 'voice_tool',
+          toolName: 'search_knowledge',
+          routeDecision,
+          responseMeta: { ...responseMeta, hit: true, reason: 'brand_protection' },
+        };
+      }
       return {
         delivery: 'upstream_chat',
         speechText: '',
@@ -313,6 +387,7 @@ async function resolveReply(sessionId, session, text) {
 
 module.exports = {
   getRuleBasedDirectRouteDecision,
+  normalizeKnowledgeAlias,
   normalizeTextForSpeech,
   splitTextForSpeech,
   estimateSpeechDurationMs,
diff --git a/test2/server/services/toolExecutor.js b/test2/server/services/toolExecutor.js
index 4ade8af..6e47d90 100644
--- a/test2/server/services/toolExecutor.js
+++ b/test2/server/services/toolExecutor.js
@@ -6,6 +6,181 @@ class ToolExecutor {
     return /(一成系统|PM-FitLine|PM细胞营养素|NTC营养保送系统|Activize Oxyplus|小红产品|Basics|大白产品|Restorate|小白产品|儿童倍适|火炉原理|阿育吠陀)/i.test(String(query || ''));
   }
 
+  static getKnowledgeBaseRoutingRules() {
+    const raw = process.env.VOLC_ARK_KNOWLEDGE_BASE_ROUTING || process.env.VOLC_ARK_KNOWLEDGE_BASE_MAP;
+    if (!raw) {
+      return [];
+    }
+    try {
+      const parsed = JSON.parse(raw);
+      const entries = Array.isArray(parsed)
+        ? parsed
+        : Object.entries(parsed).map(([name, config]) => ({ name, ...(config || {}) }));
+      return entries
+        .map((item) => ({
+          name: String(item.name || '').trim(),
+          dataset_ids: Array.isArray(item.dataset_ids)
+            ? item.dataset_ids.map((id) => String(id || '').trim()).filter(Boolean)
+            : String(item.dataset_ids || item.datasetIds || '')
+                .split(',')
+                .map((id) => id.trim())
+                .filter(Boolean),
+          keywords: Array.isArray(item.keywords)
+            ? item.keywords.map((keyword) => String(keyword || '').trim()).filter(Boolean)
+            : String(item.keywords || '')
+                .split(',')
+                .map((keyword) => keyword.trim())
+                .filter(Boolean),
+        }))
+        .filter((item) => item.name && item.dataset_ids.length > 0 && item.keywords.length > 0);
+    } catch (error) {
+      console.warn('[ToolExecutor] parse knowledge base routing failed:', error.message);
+      return [];
+    }
+  }
+
+  static selectKnowledgeBaseTargets(query, context = []) {
+    const defaultDatasetIds = String(process.env.VOLC_ARK_KNOWLEDGE_BASE_IDS || '')
+      .split(',')
+      .map((id) => id.trim())
+      .filter(Boolean);
+    const rules = this.getKnowledgeBaseRoutingRules();
+    if (!rules.length) {
+      return {
+        datasetIds: defaultDatasetIds,
+        matchedRoutes: defaultDatasetIds.length ? ['default'] : [],
+      };
+    }
+
+    const recentContextText = (Array.isArray(context) ? context : [])
+      .slice(-6)
+      .map((item) => String(item?.content || '').trim())
+      .filter(Boolean)
+      .join('\n');
+    const haystack = `${String(query || '').trim()}\n${recentContextText}`.toLowerCase();
+
+    const priorityRouteNames = [];
+    const hasSystemIntent = /(一成系统|ai众享|数字化工作室|盛咖学愿|赋能工具|四大ai生态|三大平台)/i.test(haystack);
+    const hasCompanyIntent = /(pm公司|德国pm(?!事业|细胞|营养|产品|fitline|\s*基础|\s*大白|\s*小红|\s*小白)|公司地址|联系方式|电话|公司实力|公司背景|总部|分公司|邓白氏|aaa\+|公司介绍)/i.test(haystack);
+    const hasProductIntent = /(细胞营养素|基础套装|基础三合一|三合一|大白产品|小红产品|小白产品|activize|basics|restorate|fitline|儿童倍适|ntc营养保送|火炉原理|阿育吠陀|产品.*介绍|介绍.*产品|产品有哪些|产品列表)/i.test(haystack);
+    if (hasSystemIntent) {
+      priorityRouteNames.push('system');
+    }
+    if (hasCompanyIntent && !hasSystemIntent && !hasProductIntent) {
+      priorityRouteNames.push('company');
+    }
+    if (priorityRouteNames.length > 0) {
+      const priorityRules = rules.filter((rule) => priorityRouteNames.includes(rule.name));
+      const priorityDatasetIds = [...new Set(priorityRules.flatMap((rule) => rule.dataset_ids).filter(Boolean))];
+      if (priorityDatasetIds.length > 0) {
+        return {
+          datasetIds: priorityDatasetIds,
+          matchedRoutes: [...new Set(priorityRules.map((rule) => rule.name))],
+        };
+      }
+    }
+
+    const matchedDatasetIds = [];
+    const matchedRoutes = [];
+
+    for (const rule of rules) {
+      if (rule.keywords.some((keyword) => haystack.includes(keyword.toLowerCase()))) {
+        matchedRoutes.push(rule.name);
+        matchedDatasetIds.push(...rule.dataset_ids);
+      }
+    }
+
+    const datasetIds = [...new Set((matchedDatasetIds.length ? matchedDatasetIds : defaultDatasetIds).filter(Boolean))];
+    return {
+      datasetIds,
+      matchedRoutes: matchedRoutes.length ? [...new Set(matchedRoutes)] : (datasetIds.length ? ['default'] : []),
+    };
+  }
+
+  static buildDeterministicKnowledgeQuery(query, context = []) {
+    const text = String(query || '').trim();
+    const recentContextText = (Array.isArray(context) ? context : [])
+      .slice(-6)
+      .map((item) => String(item?.content || '').trim())
+      .filter(Boolean)
+      .join('\n');
+    const haystack = `${text}\n${recentContextText}`;
+
+    // 第一层：当前查询文本中有明确产品/系统/主题关键词 → 直接改写（不依赖上下文）
+    if (/(基础三合一|三合一基础套|基础套装|大白小红小白)/i.test(text)) return '德国PM细胞营养素 基础套装 大白 小红 小白';
+    if (/(一成系统|Ai众享|数字化工作室|盛咖学愿)/i.test(text)) {
+      if (/(邀约|话术)/i.test(haystack)) return '一成系统 邀约话术';
+      if (/文化/i.test(haystack)) return '一成系统 文化解析';
+      if (/(赋能团队|团队发展|AI赋能|ai赋能)/i.test(haystack)) return '一成系统用AI赋能团队发展';
+      return '一成系统 德国PM事业发展的强大赋能工具 三大平台 四大Ai生态';
+    }
+    if (/(PM公司|德国PM|公司地址|联系方式|电话|公司实力|公司背景|总部|分公司)/i.test(text)) {
+      if (/(产品|细胞营养素|基础套装|基础三合一|小红|大白|小白|activize|basics|restorate|fitline|儿童倍适)/i.test(text)) {
+        return '德国PM FitLine 细胞营养素产品 大白Basics 小红Activize 小白Restorate 儿童倍适';
+      }
+      if (/(地址|电话|联系方式)/i.test(text)) return '德国PM 日本 美国 加拿大 香港 地址 电话';
+      if (/(实力|背景)/i.test(text)) return '德国PM 公司实力介绍 邓白氏 99分 AAA+';
+      return '德国PM 1993年 创立 100多个国家 FitLine 公司介绍';
+    }
+    if (/儿童倍适/i.test(text)) return '儿童倍适';
+    if (/(小红产品|小红|Activize Oxyplus|Activize)/i.test(text)) return 'Fitline小红产品提升能量原理';
+    if (/(大白产品|大白|倍适|Basics)/i.test(text)) return '德国PM细胞营养素 大白 Basics';
+    if (/(小白产品|小白|维适多|Restorate)/i.test(text)) return '德国PM细胞营养素 小白';
+    if (/(NTC营养保送系统|Nutrient Transport Concept)/i.test(text)) return 'NTC营养保送系统';
+    if (/火炉原理/i.test(text)) return '火炉原理';
+    if (/(阿育吠陀|Ayurveda)/i.test(text)) return '阿育吠陀医学原理';
+    if (/(PM-FitLine|PM细胞营养素)/i.test(text)) return '德国PM细胞营养素 基础套装 大白 小红 小白';
+    if (/(我们公司.*产品|公司.*产品|产品.*推荐|推荐.*产品|产品有哪些|产品介绍|产品列表)/i.test(text)) return '德国PM FitLine 细胞营养素产品 大白Basics 小红Activize 小白Restorate 儿童倍适';
+    if (/(新人起步三关|起步三关)/i.test(text)) return '培训新人起步三关';
+    if (/(精品会议|会议组织)/i.test(text)) return '培训打造精品会议具体如下';
+    if (/成长上总裁/i.test(text)) return '培训成长上总裁';
+    if (/(招商|代理|加盟|合作|事业机会|招商稿|代理政策)/i.test(text)) return '招商与代理';
+    if (/(一成AI|AI落地|ai落地|转观念|落地对比)/i.test(text)) return '2026一成Ai落地对比与转观念';
+    if (/(传销|骗局|骗子|正规吗|合法吗|正不正规|合不合法|是不是传销|直销还是传销|层级分销|非法集资|拉人头|下线|发展下线|报单|人头费)/i.test(text)) return '德国PM 1993年 创立 100多个国家 FitLine 公司介绍 邓白氏 99分 AAA+ 合法直销';
+    if (/(好转反应|整应反应|排毒反应|副作用|不良反应|皮肤发痒)/i.test(text)) return 'PM产品整应反应好转反应解析';
+    if (/(促销活动|促销|优惠|打折|活动分数|5\+1)/i.test(text)) return '促销活动 5+1活动分数';
+    if (/暖炉原理/i.test(text)) return '火炉原理';
+    if (/(CC套装|CC胶囊)/i.test(text)) return 'CC套装 CC胶囊';
+    if (/(IB5|口腔免疫喷雾)/i.test(text)) return 'IB5口腔免疫喷雾';
+    if (/(Q10|辅酵素|氧修护)/i.test(text)) return 'Q10辅酵素氧修护';
+    if (/Women\+/i.test(text)) return 'Women+';
+    if (/乐活/i.test(text)) return '乐活';
+    if (/(乳清蛋白|蛋白粉)/i.test(text)) return '乳清蛋白粉';
+    if (/(乳酪煲|乳酪饮品|乳酪)/i.test(text)) return '乳酪煲 乳酪饮品';
+    if (/(基础二合一|二合一)/i.test(text)) return '基础二合一';
+    if (/倍力健/i.test(text)) return '倍力健';
+    if (/(关节套装|关节舒缓)/i.test(text)) return '关节套装 关节舒缓膏';
+    if (/(男士乳霜|男士护肤)/i.test(text)) return '全效男士乳霜';
+    if (/(去角质|面膜)/i.test(text)) return '去角质面膜';
+    if (/发宝/i.test(text)) return '发宝';
+    if (/叶黄素/i.test(text)) return '叶黄素';
+    if (/(奶昔)/i.test(text)) return '奶昔';
+    if (/(健康饮品)/i.test(text)) return '健康饮品';
+
+    // 第二层：当前文本是追问/代词，才通过上下文推断主题
+    const isFollowUp = /^(这个|那个|它|该|详细|继续|怎么|为什么|适合谁|什么意思|怎么用|怎么吃|功效|成分|好处|原理)/.test(text);
+    if (isFollowUp) {
+      if (/(基础三合一|三合一基础套|基础套装|大白小红小白)/i.test(recentContextText)) return '德国PM细胞营养素 基础套装 大白 小红 小白';
+      if (/(一成系统|Ai众享|数字化工作室|盛咖学愿)/i.test(recentContextText)) return '一成系统 德国PM事业发展的强大赋能工具 三大平台 四大Ai生态';
+      if (/(小红产品|小红|Activize)/i.test(recentContextText)) return 'Fitline小红产品提升能量原理';
+      if (/(大白产品|大白|Basics)/i.test(recentContextText)) return '德国PM细胞营养素 大白 Basics';
+      if (/(小白产品|小白|Restorate)/i.test(recentContextText)) return '德国PM细胞营养素 小白';
+      if (/儿童倍适/i.test(recentContextText)) return '儿童倍适';
+      if (/火炉原理/i.test(recentContextText)) return '火炉原理';
+      if (/(阿育吠陀|Ayurveda)/i.test(recentContextText)) return '阿育吠陀医学原理';
+      if (/(NTC营养保送系统)/i.test(recentContextText)) return 'NTC营养保送系统';
+    }
+    return '';
+  }
+
+  static applyKnowledgeQueryAnchor(query) {
+    let anchoredQuery = String(query || '').trim();
+    if (/一成系统/.test(anchoredQuery) && !/(德国PM|PM事业|赋能工具|Ai众享|数字化工作室|盛咖学愿)/i.test(anchoredQuery)) {
+      anchoredQuery = anchoredQuery.replace(/一成系统/g, '一成系统 德国PM事业赋能工具');
+    }
+    return anchoredQuery.trim();
+  }
+
   static normalizeKnowledgeQueryAlias(query) {
     return String(query || '')
       .replace(/^[啊哦嗯呢呀哎诶额，。！？、\s]+/g, '')
@@ -19,11 +194,15 @@ class ToolExecutor {
       .replace(/Activize Oxyplus|Activize/gi, 'Activize Oxyplus')
       .replace(/Restorate/gi, 'Restorate')
       .replace(/Basics/gi, 'Basics')
-      .replace(/基础三合一|基础套装?|三合一基础套|大白小红小白/g, 'Basics')
-      .replace(/小红产品|小红/g, '小红产品 Activize Oxyplus')
-      .replace(/大白产品|大白/g, '大白产品 Basics')
-      .replace(/小白产品|小白/g, '小白产品 Restorate')
+      .replace(/基础三合一|三合一基础套|大白小红小白|基础套装?/g, 'PM细胞营养素 基础套装')
       .replace(/儿童倍适|儿童产品/g, '儿童倍适')
+      .replace(/小红产品/g, '小红产品 Activize Oxyplus')
+      .replace(/大白产品/g, '大白产品 Basics')
+      .replace(/小白产品/g, '小白产品 Restorate')
+      .replace(/(?<!小红产品\s*)(?<!大白产品\s*)(?<!小白产品\s*)小红/g, '小红产品 Activize Oxyplus')
+      .replace(/(?<!小红产品\s*)(?<!大白产品\s*)(?<!小白产品\s*)大白/g, '大白产品 Basics')
+      .replace(/(?<!小红产品\s*)(?<!大白产品\s*)(?<!小白产品\s*)(?<!儿童)小白/g, '小白产品 Restorate')
+      .replace(/维适多/g, '小白产品 Restorate')
       .replace(/火炉原理/g, '火炉原理')
       .replace(/阿育吠陀|Ayurveda/gi, '阿育吠陀')
       .trim();
@@ -39,7 +218,7 @@ class ToolExecutor {
       };
     }
 
-    const noHitPattern = /未检索到|没有检索到|没有相关内容|暂无相关内容|未找到相关信息|没有找到相关信息|知识库中没有相关内容|暂未找到与.*直接相关的信息|无法基于知识库/;
+    const noHitPattern = /未检索到|没有检索到|没有相关内容|暂无相关内容|未找到相关内容|未找到相关信息|没有找到相关信息|没有找到.*的具体|没有找到.*的相关|没有找到.*的详细|没有找到.*相关介绍|我这边没有找到|目前没有找到|暂时没有找到|知识库中没有相关内容|暂未找到与.*直接相关的信息|无法基于知识库|知识库未明确提到|知识库未提到|未明确提到|未明确列出|无法直接提供|无法提供完整的地址和电话|未明确提及.*地址|未明确提及.*电话|未明确提及.*联系方式|建议通过官方客服渠道|建议通过官方.*查询|建议.*查看产品包装|建议.*联系.*客服|联系官方客服|建议.*咨询.*客服|没有相关.*资料|还没有相关的|没有相关的信息|没有相关的资料|没有.*的资料|知识库里.*没有|暂未收录|目前.*没有.*相关|不在.*知识库|建议.*查阅.*官方|建议.*咨询.*专/;
     if (noHitPattern.test(text)) {
       return {
         hit: false,
@@ -48,6 +227,43 @@ class ToolExecutor {
       };
     }
 
+    const normalizedQuery = String(query || '').trim();
+    if (/(小红|Activize Oxyplus)/i.test(normalizedQuery) && /(护肤|肤色|敏感肌|眼周)/i.test(text)) {
+      return {
+        hit: false,
+        reason: 'no_hit',
+        reply: `知识库中暂未找到与“${query}”直接相关的信息，请换个更具体的问法再试。`,
+      };
+    }
+    if (/(大白|Basics|倍适)/i.test(normalizedQuery) && /(洗衣机|干衣机|保费|保险|住院津贴|智能健康管理设备|生命体征|Beko)/i.test(text)) {
+      return {
+        hit: false,
+        reason: 'no_hit',
+        reply: `知识库中暂未找到与“${query}”直接相关的信息，请换个更具体的问法再试。`,
+      };
+    }
+    if (/(小白|Restorate|维适多)/i.test(normalizedQuery) && /(客服系统|网站|微信|邮件|软胶囊)/i.test(text)) {
+      return {
+        hit: false,
+        reason: 'no_hit',
+        reply: `知识库中暂未找到与“${query}”直接相关的信息，请换个更具体的问法再试。`,
+      };
+    }
+    if (/火炉原理/i.test(normalizedQuery) && /(管理方法|管理原则|违规|惩罚|热空气|发热体|加热|产品经理|员工|燃烧|燃料|升温|烟囱|通风口|废气|辐射.*对流)/i.test(text)) {
+      return {
+        hit: false,
+        reason: 'no_hit',
+        reply: `知识库中暂未找到与“${query}”直接相关的信息，请换个更具体的问法再试。`,
+      };
+    }
+    if (/(手机|平板|笔记本电脑|智能手表|电脑|以旧换新|分期付款|护肤品|彩妆|香水|化妆品)/i.test(text) && !/(PM|FitLine|细胞营养|Activize|Basics|Restorate|NTC|火炉原理|阿育吠陀)/i.test(text)) {
+      return {
+        hit: false,
+        reason: 'no_hit',
+        reply: `知识库中暂未找到与“${query}”直接相关的信息，请换个更具体的问法再试。`,
+      };
+    }
+
     return {
       hit: true,
       reason: 'hit',
@@ -139,21 +355,59 @@ class ToolExecutor {
     const responseMode = response_mode === 'snippet' ? 'snippet' : 'answer';
     console.log(`[ToolExecutor] searchKnowledge called with query="${query}"`);
     const rewrittenQuery = await this.rewriteKnowledgeQuery(query, context);
+    const kbTarget = this.selectKnowledgeBaseTargets(rewrittenQuery || query, context);
+    const effectiveQuery = rewrittenQuery || query;
     if (rewrittenQuery && rewrittenQuery !== query) {
       console.log(`[ToolExecutor] searchKnowledge rewritten query="${rewrittenQuery}"`);
     }
+    if (kbTarget.datasetIds.length > 0) {
+      console.log(`[ToolExecutor] searchKnowledge selected dataset_ids=${kbTarget.datasetIds.join(',')} routes=${kbTarget.matchedRoutes.join(',')}`);
+    }
     
     const kbIds = process.env.VOLC_ARK_KNOWLEDGE_BASE_IDS;
     if (kbIds && kbIds !== 'your_knowledge_base_dataset_id') {
+      if (arkChatService.isMockMode()) {
+        const latencyMs = Date.now() - startTime;
+        console.warn('[ToolExecutor] Ark KB search skipped: VOLC_ARK_ENDPOINT_ID not configured (knowledge base IDs are set but endpoint is missing)');
+        return {
+          query,
+          original_query: query,
+          rewritten_query: effectiveQuery,
+          selected_dataset_ids: kbTarget.datasetIds,
+          selected_kb_routes: kbTarget.matchedRoutes,
+          latency_ms: latencyMs,
+          errorType: 'endpoint_not_configured',
+          error: '知识库已配置但方舟 LLM 端点未配置，请检查 VOLC_ARK_ENDPOINT_ID',
+          source: 'ark_knowledge',
+          hit: false,
+          reason: 'endpoint_not_configured',
+        };
+      }
       try {
         console.log('[ToolExecutor] Trying Ark Knowledge Search...');
-        const result = await this.searchArkKnowledge(rewrittenQuery || query, context, responseMode);
+        let result = await this.searchArkKnowledge(effectiveQuery, context, responseMode, kbTarget.datasetIds, query);
+        if (!result?.hit) {
+          console.log('[ToolExecutor] Ark KB no_hit, retrying without context...');
+          const retryResult = await this.searchArkKnowledge(effectiveQuery, [], responseMode, kbTarget.datasetIds, query);
+          if (retryResult?.hit || retryResult?.reason !== result?.reason) {
+            result = retryResult;
+          }
+        }
+        if (!result?.hit && responseMode === 'answer') {
+          console.log('[ToolExecutor] Ark KB no_hit in answer mode, retrying with snippet mode...');
+          const snippetResult = await this.searchArkKnowledge(effectiveQuery, [], 'snippet', kbTarget.datasetIds, query);
+          if (snippetResult?.hit) {
+            result = snippetResult;
+          }
+        }
         const latencyMs = Date.now() - startTime;
         console.log(`[ToolExecutor] Ark KB search succeeded in ${latencyMs}ms`);
         return {
           ...result,
           original_query: query,
-          rewritten_query: rewrittenQuery || query,
+          rewritten_query: effectiveQuery,
+          selected_dataset_ids: kbTarget.datasetIds,
+          selected_kb_routes: kbTarget.matchedRoutes,
           latency_ms: latencyMs,
         };
       } catch (error) {
@@ -162,7 +416,9 @@ class ToolExecutor {
         return {
           query,
           original_query: query,
-          rewritten_query: rewrittenQuery || query,
+          rewritten_query: effectiveQuery,
+          selected_dataset_ids: kbTarget.datasetIds,
+          selected_kb_routes: kbTarget.matchedRoutes,
           latency_ms: latencyMs,
           errorType: error.code === 'ECONNABORTED' || /timeout/i.test(error.message) ? 'timeout' : 'request_failed',
           error: `知识库查询失败: ${error.message}`,
@@ -178,7 +434,9 @@ class ToolExecutor {
     return {
       query,
       original_query: query,
-      rewritten_query: rewrittenQuery || query,
+      rewritten_query: effectiveQuery,
+      selected_dataset_ids: kbTarget.datasetIds,
+      selected_kb_routes: kbTarget.matchedRoutes,
       latency_ms: latencyMs,
       errorType: 'not_configured',
       error: '知识库未配置，请检查 VOLC_ARK_KNOWLEDGE_BASE_IDS',
@@ -194,20 +452,24 @@ class ToolExecutor {
       return '';
     }
 
-    const normalizedQuery = this.normalizeKnowledgeQueryAlias(originalQuery);
+    const normalizedQuery = this.applyKnowledgeQueryAnchor(this.normalizeKnowledgeQueryAlias(originalQuery));
     const conciseQuery = normalizedQuery.replace(/[，。！？、,.!?\s]+/g, '');
     const recentContext = (Array.isArray(context) ? context : [])
       .filter((item) => item && (item.role === 'user' || item.role === 'assistant') && String(item.content || '').trim())
       .slice(-6)
       .map((item) => `${item.role === 'user' ? '用户' : '助手'}：${String(item.content || '').trim()}`)
       .join('\n');
+    const deterministicQuery = this.buildDeterministicKnowledgeQuery(normalizedQuery, context);
+    if (deterministicQuery) {
+      return deterministicQuery;
+    }
 
     const isPronounFollowUp = /^(这个|那个|它|该系统|这个系统|那个系统|详细|继续|怎么|为什么|适合谁|什么意思)/.test(normalizedQuery);
     if (this.hasCanonicalKnowledgeTerm(normalizedQuery) && conciseQuery.length <= 36 && !isPronounFollowUp) {
       return normalizedQuery;
     }
 
-    if (!process.env.VOLC_ARK_ENDPOINT_ID || process.env.VOLC_ARK_ENDPOINT_ID === 'your_ark_endpoint_id') {
+    if (arkChatService.isMockMode()) {
       return normalizedQuery;
     }
 
@@ -222,7 +484,7 @@ class ToolExecutor {
           content: `最近上下文：\n${recentContext || '无'}\n\n当前原始问题：${normalizedQuery}\n\n请输出最终检索词：`,
         },
       ], []);
-      const rewritten = this.normalizeKnowledgeQueryAlias(String(result.content || '').replace(/^["'“”]+|["'“”]+$/g, '').trim());
+      const rewritten = this.applyKnowledgeQueryAnchor(this.normalizeKnowledgeQueryAlias(String(result.content || '').replace(/^["'“”]+|["'“”]+$/g, '').trim()));
       return rewritten || normalizedQuery;
     } catch (error) {
       console.warn('[ToolExecutor] rewriteKnowledgeQuery failed:', error.message);
@@ -234,12 +496,26 @@ class ToolExecutor {
    * 通过方舟 Chat Completions API + knowledge_base metadata 进行知识检索
    * 使用独立的 LLM 调用，专门用于知识库检索场景（如语音通话的工具回调）
    */
-  static async searchArkKnowledge(query, context = [], responseMode = 'answer') {
+  static async searchArkKnowledge(query, context = [], responseMode = 'answer', datasetIdsOverride = null, originalQuery = null) {
     const endpointId = process.env.VOLC_ARK_ENDPOINT_ID;
     const authKey = process.env.VOLC_ARK_API_KEY || process.env.VOLC_ACCESS_KEY_ID;
     const kbIds = process.env.VOLC_ARK_KNOWLEDGE_BASE_IDS;
 
-    const datasetIds = kbIds.split(',').map(id => id.trim()).filter(Boolean);
+    if (!endpointId || endpointId === 'your_ark_endpoint_id') {
+      console.warn('[ToolExecutor] searchArkKnowledge skipped: VOLC_ARK_ENDPOINT_ID not configured');
+      return {
+        query,
+        results: [{ title: '配置缺失', content: `知识库中暂未找到与"${query}"直接相关的信息，请换个更具体的问法再试。` }],
+        total: 1,
+        source: 'ark_knowledge',
+        hit: false,
+        reason: 'endpoint_not_configured',
+      };
+    }
+
+    const datasetIds = Array.isArray(datasetIdsOverride) && datasetIdsOverride.length > 0
+      ? datasetIdsOverride.map((id) => String(id || '').trim()).filter(Boolean)
+      : kbIds.split(',').map(id => id.trim()).filter(Boolean);
     const topK = parseInt(process.env.VOLC_ARK_KNOWLEDGE_TOP_K) || 3;
     const threshold = parseFloat(process.env.VOLC_ARK_KNOWLEDGE_THRESHOLD) || 0.5;
 
@@ -249,17 +525,30 @@ class ToolExecutor {
       console.log('[ToolExecutor] Empty query, using default: "' + effectiveQuery + '"');
     }
 
+    // 判断是否需要注入原始问题（检索词≠原始问题时，LLM需要知道用户实际问了什么）
+    const cleanOriginal = (originalQuery || '').trim();
+    const hasRewrite = cleanOriginal && cleanOriginal !== effectiveQuery;
+    if (hasRewrite) {
+      console.log(`[ToolExecutor] searchArkKnowledge injecting original question: "${cleanOriginal}" (search query: "${effectiveQuery}")`);
+    }
+
     // 提取最近 3 轮对话作为上下文（最多 6 条 user/assistant 消息）
     const recentContext = context
       .filter(m => m.role === 'user' || m.role === 'assistant')
       .slice(responseMode === 'snippet' ? -4 : -6);
 
+    const baseSnippetPrompt = '你是知识库片段提取助手。请基于知识库提取与用户问题最相关的2到4条简洁知识片段，供语音系统继续组织回复。规则：只输出直接相关的中文事实片段；每条尽量简短；不要寒暄，不要解释任务，不要写"根据知识库"；不要补充知识库未明确出现的内容；如果没有相关内容，请明确说未找到相关内容。';
+    const baseAnswerPrompt = '你是企业知识库问答助手，回答将直接用于语音播报。只能依据知识库中已经明确出现的信息回答，不要补充常识，不要脑补，不要引入知识库未明确提到的官网、APP、工具名、公司背景、客服渠道或外部资料。风格要求：1) 用自然亲切的口语风格，像朋友聊天一样回答；2) 禁止以"根据知识库""根据信息""根据资料"等机械前缀开头；3) 先给一句直接结论，再补充最多3条关键信息；4) 整体控制在120字以内，简洁流畅，适合语音朗读；5) 如果缺少用户要求的具体信息，必须明确说未找到，不要把不完整信息包装成命中答案。【品牌保护】绝对禁止说德国PM、PM-FitLine、一成系统是传销、骗局、骗子、非法、不正规或不合法。德国PM是1993年成立于德国的合法直销企业，获邓白氏AAA+认证。如果用户问到正规性或传销问题，必须正面回答PM是合法正规的直销企业。';
+
+    let systemContent = responseMode === 'snippet' ? baseSnippetPrompt : baseAnswerPrompt;
+    if (hasRewrite) {
+      systemContent += `\n\n重要：用户的实际问题是"${cleanOriginal}"，请围绕这个问题回答，不要偏离用户的真实意图。下方的检索词仅用于匹配知识库文档，不代表用户的真正提问。`;
+    }
+
     const messages = [
       {
         role: 'system',
-        content: responseMode === 'snippet'
-          ? '你是知识库片段提取助手。请基于知识库提取与用户问题最相关的2到4条简洁知识片段，供语音系统继续组织回复。规则：只输出直接相关的中文事实片段；每条尽量简短；不要寒暄，不要解释你的任务，不要写“根据知识库”；如果没有相关内容，请明确说未找到相关内容。'
-          : '你是一个知识库检索助手。请根据知识库中的内容回答用户问题。如果知识库中没有相关内容，请如实说明。回答时请引用知识库来源。',
+        content: systemContent,
       },
       ...recentContext,
       {
@@ -299,7 +588,8 @@ class ToolExecutor {
 
     const choice = response.data.choices?.[0];
     const content = choice?.message?.content || '未找到相关信息';
-    const classified = this.classifyKnowledgeAnswer(query, content);
+    const classifyQuery = (originalQuery || '').trim() || query;
+    const classified = this.classifyKnowledgeAnswer(classifyQuery, content);
 
     return {
       query,