diff --git a/.gitignore b/.gitignore
index d348235..c8d5c92 100644
--- a/.gitignore
+++ b/.gitignore
@@ -6,3 +6,4 @@ __pycache__/
 data/
 .superpowers/
 *.db
+.playwright-mcp/
diff --git a/docs/superpowers/plans/2026-09-29-building-materials-ai-kefu.md b/docs/superpowers/plans/2026-09-29-building-materials-ai-kefu.md
index 4732fd3..ff96b13 100644
--- a/docs/superpowers/plans/2026-09-29-building-materials-ai-kefu.md
+++ b/docs/superpowers/plans/2026-09-29-building-materials-ai-kefu.md
@@ -392,7 +392,7 @@ python -m pytest -q && git add -A && git commit -m "feat: 会话编排建材化+
 **Files:**
 - Modify: `app/main.py`、`app/services/email_service.py`、`app/api/routes/chat_rest.py`、`app/services/rate_limit.py`、`app/config.py`（如有 DB 默认名）
 
-- [ ] **Step 1: 逐文件更名**
+- [x] **Step 1: 逐文件更名**
 
 | 文件 | 改动 |
 |---|---|
@@ -402,14 +402,14 @@ python -m pytest -q && git add -A && git commit -m "feat: 会话编排建材化+
 | `app/services/rate_limit.py` | docstring "Mirrors hesu's" 更新 |
 | `app/config.py` + `.env.example` | DATABASE_URL 默认 `data/hesupipe_ai_kefu.db` |
 
-- [ ] **Step 2: 全局残留扫描**
+- [x] **Step 2: 全局残留扫描**
 
 ```bash
 grep -rin "汽车\|vehicle\|byd\|toyota\|hesu auto\|borderlesscar\|VOLT\|XYH\|cc-ai-kefu\|cc_ai_kefu\|car\b\|cars\|什么车\|车型\|车价" app/ tests/ scripts/ --include="*.py" | grep -v "docs/"
 ```
 预期：无输出（docstring/注释里的行业残留一并清零；`car\b|cars|什么车|车型` 抓 boundary_filter 话术池等用户可见输出）。
 
-- [ ] **Step 3: 全量测试 + Commit**
+- [x] **Step 3: 全量测试 + Commit**
 
 ```bash
 python -m pytest -q && git add -A && git commit -m "chore: 服务端品牌与行业残留更名清零"
@@ -422,7 +422,7 @@ python -m pytest -q && git add -A && git commit -m "chore: 服务端品牌与行
 **Files:**
 - Modify: `docker-compose.yml`、`deploy.sh`、`openresty.conf`、`.env.example`
 
-- [ ] **Step 1: 更名**
+- [x] **Step 1: 更名**
 
 | 文件 | 改动 |
 |---|---|
@@ -431,14 +431,14 @@ python -m pytest -q && git add -A && git commit -m "chore: 服务端品牌与行
 | `openresty.conf` | upstream `cc_ai_kefu`→`hesupipe_ai_kefu`；127.0.0.1:8016→8017；alias `/www/cc_ai_kefu/`→`/www/hesupipe_ai_kefu/`；日志名同步（含注释掉的 HTTPS 段） |
 | `.env.example` | `APP_PORT=8017`；`PUSH_EXTERNAL_KEY_PREFIX=ai-kefu-jc`；`PUSH_ENABLED=false`（开发期） |
 
-- [ ] **Step 2: 残留扫描**
+- [x] **Step 2: 残留扫描**
 
 ```bash
 grep -rn "cc_ai_kefu\|cc-ai-kefu\|8016" docker-compose.yml deploy.sh openresty.conf .env.example
 ```
 预期：无输出。
 
-- [ ] **Step 3: 测试 + Commit**
+- [x] **Step 3: 测试 + Commit**
 
 ```bash
 python -m pytest -q && git add -A && git commit -m "chore: 部署配置更名(hs-ai-kefu/8017/hesupipe_ai_kefu)"
@@ -452,14 +452,14 @@ python -m pytest -q && git add -A && git commit -m "chore: 部署配置更名(hs
 - Modify: `static/chat.html`、`static/widget.js`、`static/js/chat.js`、`static/js/theme.js`、`static/admin.html`、`static/widget-test.html`
 - Test: `tests/test_invite_static.py`、`tests/test_theme_static.py`
 
-- [ ] **Step 1: 了解静态测试的真实性质（避免走错路）**
+- [x] **Step 1: 了解静态测试的真实性质（避免走错路）**
 
 `tests/test_invite_static.py`/`test_theme_static.py` 是**结构回归网**，不是文案断言——
 它们断言的是邀请卡面板出厂 hide、pointer-events、回流顺序、theme.js 与 widget.js
 调色板逐字同步、无残留旧色 hex 等结构性质。所以本任务的测试策略是：
 **直接改前端文件，然后跑结构回归测试防破坏**（它们会在你漏改某处色值/结构时指路）。
 
-- [ ] **Step 2: 前端文案与配置**
+- [x] **Step 2: 前端文案与配置**
 
 | 文件 | 改动 |
 |---|---|
@@ -471,14 +471,14 @@ python -m pytest -q && git add -A && git commit -m "chore: 部署配置更名(hs
 | `widget.js` | **GDPR 行**：首次对话邀请卡/首条消息附加 "By chatting, you agree to our privacy policy."（链接指向 hesupipe.com 隐私政策页，URL 实施时与需求方确认，可先 `https://hesupipe.com/privacy-policy/` 占位） |
 | 头像 | `kefu.png`/`kefu-small.png` 替换（需求方提供 logo 或用品牌蓝底 "H" 字母临时生成） |
 
-- [ ] **Step 3: 跑静态断言与全量测试至绿**
+- [x] **Step 3: 跑静态断言与全量测试至绿**
 
 ```bash
 python -m pytest tests/test_invite_static.py tests/test_theme_static.py -q
 python -m pytest -q
 ```
 
-- [ ] **Step 4: 残留扫描 + Commit**
+- [x] **Step 4: 残留扫描 + Commit**
 
 ```bash
 grep -rin "HESU Support\|hesu auto\|vehicle\|VOLT\|borderlesscar\|1903717\|f08a31" static/ | grep -v blog
diff --git a/static/admin.html b/static/admin.html
index 555b1b8..d5d3127 100644
--- a/static/admin.html
+++ b/static/admin.html
@@ -3,7 +3,7 @@
 <head>
     <meta charset="UTF-8">
     <meta name="viewport" content="width=device-width, initial-scale=1.0">
-    <title>VOLT - 管理后台</title>
+    <title>HESUPIPE - 管理后台</title>
     <style>
         * { margin: 0; padding: 0; box-sizing: border-box; }
         body { font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif; background: #f0f2f5; color: #333; height: 100vh; overflow: hidden; }
@@ -119,7 +119,7 @@
 
 <div class="login-wrap" id="loginWrap">
     <div class="login-box">
-        <h2>VOLT 管理后台</h2>
+        <h2>HESUPIPE 管理后台</h2>
         <input type="password" id="loginPwd" placeholder="请输入管理密码" autofocus>
         <button onclick="doLogin()">登录</button>
         <div class="login-error" id="loginErr">密码错误</div>
@@ -128,7 +128,7 @@
 
 <div class="app" id="app">
     <div class="header">
-        <h1>VOLT - 沟通记录</h1>
+        <h1>HESUPIPE - 沟通记录</h1>
         <div class="header-right">
             <button class="btn-logs" id="btnLogs" onclick="toggleLogs()">推送日志</button>
             <select id="filterIntent" onchange="resetAndLoad()">
@@ -339,8 +339,8 @@ function selectConv(convId) {
         var html = '';
         d.messages.forEach(function(m) {
             var cls = m.role === 'user' ? 'user' : 'assistant';
-            var avatar = m.role === 'user' ? '客' : 'V';
-            var roleLabel = m.role === 'user' ? '客户' : 'VOLT';
+            var avatar = m.role === 'user' ? '客' : 'H';
+            var roleLabel = m.role === 'user' ? '客户' : 'HESUPIPE';
 
             html += '<div class="msg-row ' + cls + '">';
             html += '<div class="msg-avatar ' + cls + '">' + avatar + '</div>';
diff --git a/static/chat.html b/static/chat.html
index e218b0e..efdb9cf 100644
--- a/static/chat.html
+++ b/static/chat.html
@@ -3,7 +3,7 @@
 <head>
     <meta charset="UTF-8">
     <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no">
-    <title>VOLT</title>
+    <title>HESUPIPE Support</title>
     <link rel="stylesheet" href="/static/css/style.css">
     <script src="/static/js/theme.js"></script>
 </head>
@@ -12,7 +12,7 @@
         <div class="chat-header">
             <div class="avatar"><span class="avatar-emoji">🤖</span><img class="avatar-img" alt="" src="/static/kefu-small.png"></div>
             <div class="info">
-                <h1>HESU Support</h1>
+                <h1>HESUPIPE Support</h1>
                 <div class="availability">Online now - Usually replies in minutes</div>
             </div>
             <!-- <div class="actions">
@@ -30,14 +30,14 @@
             <div style="display:flex;align-items:center;gap:14px;">
               <div class="help-content">
                 <div class="help-title">How can we help?</div>
-                <div class="help-description">Ask about vehicles, market support, quotation, shipping and delivery.</div>
+                <div class="help-description">Ask about pipe specifications, quotations, MOQ, shipping and delivery.</div>
               </div>
               <div class="help-actions">
-                <a href="https://wa.me/+8619037179250" target="_blank" class="call-btn whatsapp-btn">
+                <a href="https://wa.me/+8615937108317" target="_blank" class="call-btn whatsapp-btn">
                   <svg width="18" height="18" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><path d="M22 16.92v3a2 2 0 0 1-2.18 2 19.79 19.79 0 0 1-8.63-3.07 19.5 19.5 0 0 1-6-6 19.79 19.79 0 0 1-3.07-8.67A2 2 0 0 1 4.11 2h3a2 2 0 0 1 2 1.72 12.84 12.84 0 0 0 .7 2.81 2 2 0 0 1-.45 2.11L8.09 9.91a16 16 0 0 0 6 6l1.27-1.27a2 2 0 0 1 2.11-.45 12.84 12.84 0 0 0 2.81.7A2 2 0 0 1 22 16.92z"></path></svg>
                   <span>WhatsApp</span>
                 </a>
-                <a href="mailto:info@borderlesscar.com" class="call-btn email-btn">
+                <a href="mailto:hesu@hesuu.com" class="call-btn email-btn">
                   <svg width="18" height="18" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><path d="M4 4h16c1.1 0 2 .9 2 2v12c0 1.1-.9 2-2 2H4c-1.1 0-2-.9-2-2V6c0-1.1.9-2 2-2z"></path><polyline points="22,6 12,13 2,6"></polyline></svg>
                   <span>Email</span>
                 </a>
@@ -48,7 +48,7 @@
         <div class="chat-separator"></div>
         <div class="chat-messages" id="messages">
             <div class="message assistant">
-                <div class="bubble">Hey there! Looking for a ride? Tell me what you need.</div>
+                <div class="bubble">What kind of piping project are you working on?</div>
             </div>
         </div>
 
@@ -61,7 +61,8 @@
           <div class="popular-topics-label">POPULAR TOPICS</div>
           <div class="popular-topics-grid">
             <button class="popular-topic-btn" data-topic="Get Quotation">Get Quotation</button>
-            <button class="popular-topic-btn" data-topic="Distributor Cooperation">Distributor Cooperation</button>
+            <button class="popular-topic-btn" data-topic="Pipe Specifications">Pipe Specifications</button>
+            <button class="popular-topic-btn" data-topic="Delivery & Shipping">Delivery &amp; Shipping</button>
           </div>
         </div>
         <div class="chat-separator-topics"></div>
@@ -75,6 +76,7 @@
             </button>
           </div>
         </div>
+        <div class="chat-footer"><span class="footer-left">By chatting, you agree to our <a href="https://hesupipe.com/privacy-policy/" target="_blank" rel="noopener">privacy policy</a>.</span></div>
     </div>
 
     <script src="/static/js/chat.js"></script>
diff --git a/static/css/style.css b/static/css/style.css
index 554ee44..6002f0f 100644
--- a/static/css/style.css
+++ b/static/css/style.css
@@ -5,13 +5,13 @@
 }
 
 :root {
-    --w-primary: #f08a31;
-    --w-primary-rgb: 240, 138, 49;
-    --w-gradient-end: #f08e2c;
-    --w-deep-text: #8a4c1d;
-    --w-caption-text: #c16d2d;
-    --w-soft-bg: #fef8f4;
-    --w-border-soft: #f0d3bd;
+    --w-primary: #066fc0;
+    --w-primary-rgb: 6, 111, 192;
+    --w-gradient-end: #0666bb;
+    --w-deep-text: #14517a;
+    --w-caption-text: #2174ab;
+    --w-soft-bg: #f3f9fe;
+    --w-border-soft: #bbdcf2;
     --bg: #f5f5f5;
     --chat-bg: #ffffff;
     --ai-bubble: #f0f0f0;
@@ -457,6 +457,11 @@ html, body {
   flex-shrink: 0;
 }
 
+.chat-footer a {
+  color: var(--w-caption-text);
+  text-decoration: underline;
+}
+
 /* Mobile */
 @media (max-width: 600px) {
     .chat-container {
diff --git a/static/js/chat.js b/static/js/chat.js
index fd15015..1344b6a 100644
--- a/static/js/chat.js
+++ b/static/js/chat.js
@@ -29,8 +29,8 @@
 (function () {
     // 联系方式配置（与 widget.js 的 data-* 机制一致）
     var chatScript = document.currentScript || document.querySelector('script[src*="chat.js"]');
-    var whatsapp = (chatScript && chatScript.getAttribute("data-whatsapp")) || "https://wa.me/+8619037179250";
-    var email = (chatScript && chatScript.getAttribute("data-email")) || "mailto:info@borderlesscar.com";
+    var whatsapp = (chatScript && chatScript.getAttribute("data-whatsapp")) || "https://wa.me/+8615937108317";
+    var email = (chatScript && chatScript.getAttribute("data-email")) || "mailto:hesu@hesuu.com";
     var waBtn = document.querySelector('.whatsapp-btn');
     var emBtn = document.querySelector('.email-btn');
     if (waBtn) waBtn.href = whatsapp;
diff --git a/static/js/theme.js b/static/js/theme.js
index 90b64d0..e7aad12 100644
--- a/static/js/theme.js
+++ b/static/js/theme.js
@@ -4,16 +4,16 @@
 (function (global) {
     "use strict";
 
-    var DEFAULT_COLOR = "#f08a31";
+    var DEFAULT_COLOR = "#066fc0";
 
     var DEFAULT_PALETTE = {
-        primary: "#f08a31",
-        primaryRgb: "240,138,49",
-        gradientEnd: "#f08e2c",
-        deepText: "#8a4c1d",
-        captionText: "#c16d2d",
-        softBg: "#fef8f4",
-        borderSoft: "#f0d3bd"
+        primary: "#066fc0",
+        primaryRgb: "6,111,192",
+        gradientEnd: "#0666bb",
+        deepText: "#14517a",
+        captionText: "#2174ab",
+        softBg: "#f3f9fe",
+        borderSoft: "#bbdcf2"
     };
 
     function clampNum(v, lo, hi) {
diff --git a/static/kefu-small.png b/static/kefu-small.png
index 2f234e3..e89a98b 100644
Binary files a/static/kefu-small.png and b/static/kefu-small.png differ
diff --git a/static/kefu.png b/static/kefu.png
index 8bddbbf..1827017 100644
Binary files a/static/kefu.png and b/static/kefu.png differ
diff --git a/static/widget-test.html b/static/widget-test.html
index 31886e3..940b149 100644
--- a/static/widget-test.html
+++ b/static/widget-test.html
@@ -24,11 +24,11 @@
     p { color: #666; line-height: 1.6; }
     ul { color: #666; }
     .test-list li { margin-bottom: 8px; }
-    .test-list li::before { content: "☐ "; color: #f08a31; font-weight: bold; }
+    .test-list li::before { content: "☐ "; color: #066fc0; font-weight: bold; }
     #assertions div { padding: 4px 0; border-bottom: 1px solid #eee; font-family: Consolas, monospace; font-size: 13px; }
     #assertions div:last-child { border-bottom: none; }
     #colorPicker { width: 48px; height: 32px; padding: 0; border: 1px solid #ccc; border-radius: 4px; vertical-align: middle; cursor: pointer; }
-    .btn { padding: 8px 16px; background: #f08a31; color: white; border: none; border-radius: 4px; cursor: pointer; margin-right: 6px; }
+    .btn { padding: 8px 16px; background: #066fc0; color: white; border: none; border-radius: 4px; cursor: pointer; margin-right: 6px; }
     .btn:hover { opacity: 0.9; }
   </style>
 </head>
@@ -39,11 +39,11 @@
     <p><strong>Expected behavior:</strong></p>
     <ul class="test-list">
       <li>Invite card appears after 5 seconds</li>
-      <li>Invite card has orange gradient header with robot emoji</li>
-      <li>Two topic buttons: "Get Quotation" and "Distributor Cooperation"</li>
+      <li>Invite card has blue gradient header with robot emoji</li>
+      <li>Three topic buttons: "Get Quotation", "Pipe Specifications" and "Delivery &amp; Shipping"</li>
       <li>Action buttons: "Start Chat" and "No Thanks"</li>
       <li>Click "Get Quotation" → invite closes → chat opens → message auto-sends</li>
-      <li>Click "Distributor Cooperation" → invite closes → chat opens → message auto-sends</li>
+      <li>Click "Pipe Specifications" → invite closes → chat opens → message auto-sends</li>
       <li>Click "Start Chat" → invite closes → chat opens</li>
       <li>Click "No Thanks" → invite permanently closes</li>
       <li>Click "No Thanks" or X → refresh → invite stays hidden AND the old card area stays clickable (no invisible overlay; regression 2026-09-01)</li>
@@ -64,9 +64,9 @@
     <h2>Theme Color Preview</h2>
     <p>Pick a color and Apply, or use a preset. Each click tears down the old widget (host + script + invite dismissal state) and re-embeds with <code>data-color</code>. "Test Broken Avatar" points <code>data-avatar</code> at a missing image to verify the 🤖 emoji fallback.</p>
     <p>
-      <input type="color" id="colorPicker" value="#f08a31">
+      <input type="color" id="colorPicker" value="#066fc0">
       <button class="btn" onclick="applyColor()">Apply</button>
-      <button class="btn" onclick="applyColor('#f08a31')">Orange</button>
+      <button class="btn" onclick="applyColor('#066fc0')">Brand Blue</button>
       <button class="btn" onclick="applyColor('#1a73e8')">Blue</button>
       <button class="btn" onclick="applyColor('#16a34a')">Green</button>
       <button class="btn" onclick="applyColor('#7c3aed')">Purple</button>
@@ -103,7 +103,7 @@
       "data-mobile": "true",
       "data-debug": "true",
       "data-whatsapp": "https://wa.me/8613800138000",
-      "data-email": "mailto:demo@hesu-auto.com"
+      "data-email": "mailto:demo@hesupipe.com"
     };
 
     var rebuildLoading = false, rebuildPending = null;
@@ -142,9 +142,9 @@
     }
 
     /* ===== 断言面板(spec §8.2) ===== */
-    var CURRENT_HARDCODED = { // 现状代表值(spec §4),Δ ≤ 8/通道
-      primary: "#f08a31", gradientEnd: "#F08A34", deepText: "#8C4D1D",
-      captionText: "#C16C2E", softBg: "#FFF8F3", borderSoft: "#F0D5BF"
+    var CURRENT_HARDCODED = { // 现状代表值(HESUPIPE 品牌蓝 #066fc0 派生),Δ ≤ 8/通道
+      primary: "#066fc0", gradientEnd: "#0666bb", deepText: "#14517a",
+      captionText: "#2174ab", softBg: "#f3f9fe", borderSoft: "#bbdcf2"
     };
     function hexToRgb6(h) {
       h = String(h).replace(/^#/, "");
@@ -161,7 +161,7 @@
       if (!t || !d) {
         rows.push("❌ theme.js / widget debug 钩子未就绪");
       } else {
-        var p = t.derivePalette("#f08a31");
+        var p = t.derivePalette("#066fc0");
         Object.keys(CURRENT_HARDCODED).forEach(function (k) {
           var delta = channelDelta(p[k], CURRENT_HARDCODED[k]);
           check("default " + k + " Δ≤8", delta <= 8, p[k] + " vs " + CURRENT_HARDCODED[k] + ", Δ=" + delta);
diff --git a/static/widget.js b/static/widget.js
index e5b2617..6d60dc9 100644
--- a/static/widget.js
+++ b/static/widget.js
@@ -7,25 +7,25 @@
     // Save config immediately (before DOM ready)
     var position = script.getAttribute("data-position") || "bottom-right";
     var theme = script.getAttribute("data-theme") || "light";
-    var title = script.getAttribute("data-title") || "HESU Support";
+    var title = script.getAttribute("data-title") || "HESUPIPE Support";
     var autoOpen = script.getAttribute("data-auto-open") === "true";
-    var whatsapp = script.getAttribute("data-whatsapp") || "https://wa.me/+8619037179250";
-    var email = script.getAttribute("data-email") || "mailto:info@borderlesscar.com";
+    var whatsapp = script.getAttribute("data-whatsapp") || "https://wa.me/+8615937108317";
+    var email = script.getAttribute("data-email") || "mailto:hesu@hesuu.com";
     var autoInvite = script.getAttribute("data-auto-invite") !== "false";
     var isMobile = script.getAttribute("data-mobile") === "true";
     var wsBase = new URL(script.src).origin;
 
     /* ===== 主题派生单元:与 static/js/theme.js 逐字同步,tests/test_theme_static.py 强制;只可整块替换,不可单边修改 ===== */
-    var DEFAULT_COLOR = "#f08a31";
+    var DEFAULT_COLOR = "#066fc0";
 
     var DEFAULT_PALETTE = {
-        primary: "#f08a31",
-        primaryRgb: "240,138,49",
-        gradientEnd: "#f08e2c",
-        deepText: "#8a4c1d",
-        captionText: "#c16d2d",
-        softBg: "#fef8f4",
-        borderSoft: "#f0d3bd"
+        primary: "#066fc0",
+        primaryRgb: "6,111,192",
+        gradientEnd: "#0666bb",
+        deepText: "#14517a",
+        captionText: "#2174ab",
+        softBg: "#f3f9fe",
+        borderSoft: "#bbdcf2"
     };
 
     function clampNum(v, lo, hi) {
@@ -219,6 +219,7 @@
         ".chat-footer { padding:10px 10px; background:white; display:flex; align-items:center; justify-content:space-between; font-size:11px; color:var(--w-caption-text); gap:20px; }",
         ".chat-footer .footer-left { flex:1; }",
         ".chat-footer .footer-right { flex-shrink:0; }",
+        ".chat-footer a { color:var(--w-caption-text); text-decoration:underline; }",
 
         // Typing
         ".typing { display:none; align-self:flex-start; padding:8px 12px; background:" + c.bubble + "; border-radius:12px; }",
@@ -275,6 +276,8 @@
         ".invite-start-btn:hover { opacity:0.95; }",
         ".invite-dismiss-btn { border-radius:20px; border:1px solid var(--w-border-soft); background:white; padding:14px 20px; color:var(--w-deep-text); font-size:14px; font-weight:500; cursor:pointer; transition:background 0.2s; }",
         ".invite-dismiss-btn:hover { background:#FEFEFE; }",
+        ".invite-privacy { padding:2px 16px 12px; font-size:11px; color:var(--w-caption-text); text-align:center; }",
+        ".invite-privacy a { color:var(--w-caption-text); text-decoration:underline; }",
 
         // Responsive
         "@media(max-width:450px){ .chat-panel{width:calc(100vw - 20px);height:calc(100vh - 200px);bottom:60px;right:0px;} .invite-panel{width:calc(100vw - 24px);} .invite-topics{grid-template-columns:1fr;} }",
@@ -297,19 +300,20 @@
         '</div></div>',
         '<div class="ended" id="w-ended">Chat ended. We\'ll be in touch!</div>',
         '<div class="panel-top">',
-        '<div class="help-block"><div style="display:flex;align-items:center;gap:14px;"><div class="help-content"><div class="help-title">How can we help?</div><div class="help-description">Ask about vehicles, market support, quotation, shipping and delivery.</div></div><div class="help-actions"><a href="' + whatsapp + '" target="_blank" class="call-btn whatsapp-btn"><svg width="18" height="18" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><path d="M22 16.92v3a2 2 0 0 1-2.18 2 19.79 19.79 0 0 1-8.63-3.07 19.5 19.5 0 0 1-6-6 19.79 19.79 0 0 1-3.07-8.67A2 2 0 0 1 4.11 2h3a2 2 0 0 1 2 1.72 12.84 12.84 0 0 0 .7 2.81 2 2 0 0 1-.45 2.11L8.09 9.91a16 16 0 0 0 6 6l1.27-1.27a2 2 0 0 1 2.11-.45 12.84 12.84 0 0 0 2.81.7A2 2 0 0 1 22 16.92z"></path></svg><span>WhatsApp</span></a><a href="' + email + '" class="call-btn email-btn"><svg width="18" height="18" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><path d="M4 4h16c1.1 0 2 .9 2 2v12c0 1.1-.9 2-2 2H4c-1.1 0-2-.9-2-2V6c0-1.1.9-2 2-2z"></path><polyline points="22,6 12,13 2,6"></polyline></svg><span>Email</span></a></div></div></div>',
+        '<div class="help-block"><div style="display:flex;align-items:center;gap:14px;"><div class="help-content"><div class="help-title">How can we help?</div><div class="help-description">Ask about pipe specifications, quotations, MOQ, shipping and delivery.</div></div><div class="help-actions"><a href="' + whatsapp + '" target="_blank" class="call-btn whatsapp-btn"><svg width="18" height="18" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><path d="M22 16.92v3a2 2 0 0 1-2.18 2 19.79 19.79 0 0 1-8.63-3.07 19.5 19.5 0 0 1-6-6 19.79 19.79 0 0 1-3.07-8.67A2 2 0 0 1 4.11 2h3a2 2 0 0 1 2 1.72 12.84 12.84 0 0 0 .7 2.81 2 2 0 0 1-.45 2.11L8.09 9.91a16 16 0 0 0 6 6l1.27-1.27a2 2 0 0 1 2.11-.45 12.84 12.84 0 0 0 2.81.7A2 2 0 0 1 22 16.92z"></path></svg><span>WhatsApp</span></a><a href="' + email + '" class="call-btn email-btn"><svg width="18" height="18" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><path d="M4 4h16c1.1 0 2 .9 2 2v12c0 1.1-.9 2-2 2H4c-1.1 0-2-.9-2-2V6c0-1.1.9-2 2-2z"></path><polyline points="22,6 12,13 2,6"></polyline></svg><span>Email</span></a></div></div></div>',
         '</div>',
         '<div class="chat-separator"></div>',
         '<div class="panel-messages" id="w-msgs">',
-        '<div class="msg-wrapper"><div class="msg ai">Hey! What kind of car are you looking for?</div></div>',
+        '<div class="msg-wrapper"><div class="msg ai">What kind of piping project are you working on?</div></div>',
         '</div>',
         '<div class="typing" id="w-typing"><span></span><span></span><span></span></div>',
-        '<div class="popular-topics-fixed" id="w-popular-topics"><div class="popular-topics-label">POPULAR TOPICS</div><div class="popular-topics-grid"><button class="popular-topic-btn" data-topic="Get Quotation">Get Quotation</button><button class="popular-topic-btn" data-topic="Distributor Cooperation">Distributor Cooperation</button></div></div>',
+        '<div class="popular-topics-fixed" id="w-popular-topics"><div class="popular-topics-label">POPULAR TOPICS</div><div class="popular-topics-grid"><button class="popular-topic-btn" data-topic="Get Quotation">Get Quotation</button><button class="popular-topic-btn" data-topic="Pipe Specifications">Pipe Specifications</button><button class="popular-topic-btn" data-topic="Delivery &amp; Shipping">Delivery &amp; Shipping</button></div></div>',
         '<div class="chat-separator-topics"></div>',
         '<div class="input-container"><div class="input-wrapper">',
         '<input type="text" id="w-input" placeholder="Type a message...">',
         '<button id="w-send"><span style="font-size:16px;">➤</span><span>Send</span></button>',
         '</div></div>',
+        '<div class="chat-footer"><span class="footer-left">By chatting, you agree to our <a href="https://hesupipe.com/privacy-policy/" target="_blank" rel="noopener">privacy policy</a>.</span></div>',
     ].join("");
 
     // Invite card HTML template
@@ -320,7 +324,7 @@
         '<div class="invite-icon"><span class="avatar-emoji">🤖</span><img class="avatar-img" alt="" src="'+avatarUrl+'"><span class="invite-status-dot"></span></div>',
         '</div>',
         '<div class="invite-header-content">',
-        '<div class="invite-title">Chat with us for available vehicles, delivery timing and distributor cooperation.</div>',
+        '<div class="invite-title">Chat with us for pipe specs, MOQ, delivery timing and quotations.</div>',
         '</div>',
         '<div class="invite-header-actions">',
         '<button class="invite-close-btn" aria-label="Close">',
@@ -339,7 +343,8 @@
         '<div class="invite-body">',
         '<div class="invite-topics">',
         '<button class="invite-topic-btn" data-topic="Get Quotation">Get Quotation</button>',
-        '<button class="invite-topic-btn" data-topic="Distributor Cooperation">Distributor Cooperation</button>',
+        '<button class="invite-topic-btn" data-topic="Pipe Specifications">Pipe Specifications</button>',
+        '<button class="invite-topic-btn" data-topic="Delivery &amp; Shipping">Delivery &amp; Shipping</button>',
         '</div>',
         '</div>',
         '<div class="chat-separator"></div>',
@@ -350,6 +355,7 @@
         '</button>',
         '<button class="invite-dismiss-btn">No Thanks</button>',
         '</div>',
+        '<div class="invite-privacy">By chatting, you agree to our <a href="https://hesupipe.com/privacy-policy/" target="_blank" rel="noopener">privacy policy</a>.</div>',
         '</div>',
         '</div>'
     ].join("");