diff --git a/about.php b/about.php
new file mode 100644
index 0000000..121d05f
--- /dev/null
+++ b/about.php
@@ -0,0 +1,65 @@
+<?php
+declare(strict_types=1);
+@date_default_timezone_set('UTC');
+
+require_once __DIR__ . '/includes/data.php';
+
+$lang = 'en';
+$site = site_config($lang);
+$pageTitle = $site['brand'] . ' | About Us';
+$pageDescription = 'Meet the engineering team and manufacturing capabilities.';
+$assetVersion = (string) time();
+$navItems = $site['nav'];
+$langSwitchUrl = '/zh/about.php';
+
+$highlights = get_highlights($lang);
+$facts = get_company_facts($lang);
+?>
+<?php require __DIR__ . '/includes/header.php'; ?>
+
+<main>
+  <section class="page-hero">
+    <div class="container">
+      <div class="hero-panel">
+        <h1 class="display-6 fw-semibold">Engineering-led industrial lighting manufacturer</h1>
+        <p class="text-muted">A vertically integrated facility covering R&amp;D, production, photometric testing, and global shipment coordination.</p>
+      </div>
+    </div>
+  </section>
+
+  <section class="section-block pt-0">
+    <div class="container">
+      <div class="row g-4 align-items-center">
+        <div class="col-lg-6">
+          <img class="w-100 rounded-3 shadow-sm" src="/assets/images/factory-floor.svg" alt="Engineering and testing facility" width="520" height="420" />
+        </div>
+        <div class="col-lg-6">
+          <h2>What sets us apart</h2>
+          <p class="text-muted">From LED driver selection to full photometric reports, we run a disciplined manufacturing workflow to ensure every shipment meets compliance and performance targets.</p>
+          <div class="row g-3 mt-3">
+            <?php foreach ($highlights as $highlight): ?>
+              <div class="col-md-6">
+                <div class="feature-box">
+                  <h3 class="h6"><?= htmlspecialchars($highlight['title']) ?></h3>
+                  <p class="small text-muted mb-0"><?= htmlspecialchars($highlight['text']) ?></p>
+                </div>
+              </div>
+            <?php endforeach; ?>
+          </div>
+        </div>
+      </div>
+      <div class="row g-4 mt-4">
+        <?php foreach ($facts as $fact): ?>
+          <div class="col-sm-6 col-lg-3">
+            <div class="detail-card text-center">
+              <div class="h4 mb-1"><?= htmlspecialchars($fact['value']) ?></div>
+              <div class="text-muted small"><?= htmlspecialchars($fact['label']) ?></div>
+            </div>
+          </div>
+        <?php endforeach; ?>
+      </div>
+    </div>
+  </section>
+</main>
+
+<?php require __DIR__ . '/includes/footer.php'; ?>
diff --git a/assets/css/custom.css b/assets/css/custom.css
index 789132e..0eed129 100644
--- a/assets/css/custom.css
+++ b/assets/css/custom.css
@@ -1,403 +1,13 @@
-body {
-    background: linear-gradient(-45deg, #ee7752, #e73c7e, #23a6d5, #23d5ab);
-    background-size: 400% 400%;
-    animation: gradient 15s ease infinite;
-    color: #212529;
-    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
-    font-size: 14px;
-    margin: 0;
-    min-height: 100vh;
+:root {
+  --primary: #D4AF37; /* Gold */
+  --secondary: #FFF5F7; /* Pink/White tint */
+  --accent: #E58D9C; /* Soft Pink */
+  --text: #4A4A4A;
 }
 
-.main-wrapper {
-    display: flex;
-    align-items: center;
-    justify-content: center;
-    min-height: 100vh;
-    width: 100%;
-    padding: 20px;
-    box-sizing: border-box;
-    position: relative;
-    z-index: 1;
-}
-
-@keyframes gradient {
-    0% {
-        background-position: 0% 50%;
-    }
-    50% {
-        background-position: 100% 50%;
-    }
-    100% {
-        background-position: 0% 50%;
-    }
-}
-
-.chat-container {
-    width: 100%;
-    max-width: 600px;
-    background: rgba(255, 255, 255, 0.85);
-    border: 1px solid rgba(255, 255, 255, 0.3);
-    border-radius: 20px;
-    display: flex;
-    flex-direction: column;
-    height: 85vh;
-    box-shadow: 0 20px 40px rgba(0,0,0,0.2);
-    backdrop-filter: blur(15px);
-    -webkit-backdrop-filter: blur(15px);
-    overflow: hidden;
-}
-
-.chat-header {
-    padding: 1.5rem;
-    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
-    background: rgba(255, 255, 255, 0.5);
-    font-weight: 700;
-    font-size: 1.1rem;
-    display: flex;
-    justify-content: space-between;
-    align-items: center;
-}
-
-.chat-messages {
-    flex: 1;
-    overflow-y: auto;
-    padding: 1.5rem;
-    display: flex;
-    flex-direction: column;
-    gap: 1.25rem;
-}
-
-/* Custom Scrollbar */
-::-webkit-scrollbar {
-    width: 6px;
-}
-
-::-webkit-scrollbar-track {
-    background: transparent;
-}
-
-::-webkit-scrollbar-thumb {
-    background: rgba(255, 255, 255, 0.3);
-    border-radius: 10px;
-}
-
-::-webkit-scrollbar-thumb:hover {
-    background: rgba(255, 255, 255, 0.5);
-}
-
-.message {
-    max-width: 85%;
-    padding: 0.85rem 1.1rem;
-    border-radius: 16px;
-    line-height: 1.5;
-    font-size: 0.95rem;
-    box-shadow: 0 4px 15px rgba(0,0,0,0.05);
-    animation: fadeIn 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
-}
-
-@keyframes fadeIn {
-    from { opacity: 0; transform: translateY(20px) scale(0.95); }
-    to { opacity: 1; transform: translateY(0) scale(1); }
-}
-
-.message.visitor {
-    align-self: flex-end;
-    background: linear-gradient(135deg, #212529 0%, #343a40 100%);
-    color: #fff;
-    border-bottom-right-radius: 4px;
-}
-
-.message.bot {
-    align-self: flex-start;
-    background: #ffffff;
-    color: #212529;
-    border-bottom-left-radius: 4px;
-}
-
-.chat-input-area {
-    padding: 1.25rem;
-    background: rgba(255, 255, 255, 0.5);
-    border-top: 1px solid rgba(0, 0, 0, 0.05);
-}
-
-.chat-input-area form {
-    display: flex;
-    gap: 0.75rem;
-}
-
-.chat-input-area input {
-    flex: 1;
-    border: 1px solid rgba(0, 0, 0, 0.1);
-    border-radius: 12px;
-    padding: 0.75rem 1rem;
-    outline: none;
-    background: rgba(255, 255, 255, 0.9);
-    transition: all 0.3s ease;
-}
-
-.chat-input-area input:focus {
-    border-color: #23a6d5;
-    box-shadow: 0 0 0 3px rgba(35, 166, 213, 0.2);
-}
-
-.chat-input-area button {
-    background: #212529;
-    color: #fff;
-    border: none;
-    padding: 0.75rem 1.5rem;
-    border-radius: 12px;
-    cursor: pointer;
-    font-weight: 600;
-    transition: all 0.3s ease;
-}
-
-.chat-input-area button:hover {
-    background: #000;
-    transform: translateY(-2px);
-    box-shadow: 0 5px 15px rgba(0,0,0,0.2);
-}
-
-/* Background Animations */
-.bg-animations {
-    position: fixed;
-    top: 0;
-    left: 0;
-    width: 100%;
-    height: 100%;
-    z-index: 0;
-    overflow: hidden;
-    pointer-events: none;
-}
-
-.blob {
-    position: absolute;
-    width: 500px;
-    height: 500px;
-    background: rgba(255, 255, 255, 0.2);
-    border-radius: 50%;
-    filter: blur(80px);
-    animation: move 20s infinite alternate cubic-bezier(0.45, 0, 0.55, 1);
-}
-
-.blob-1 { 
-    top: -10%; 
-    left: -10%; 
-    background: rgba(238, 119, 82, 0.4); 
-}
-
-.blob-2 { 
-    bottom: -10%; 
-    right: -10%; 
-    background: rgba(35, 166, 213, 0.4); 
-    animation-delay: -7s; 
-    width: 600px;
-    height: 600px;
-}
-
-.blob-3 { 
-    top: 40%; 
-    left: 30%; 
-    background: rgba(231, 60, 126, 0.3); 
-    animation-delay: -14s; 
-    width: 450px;
-    height: 450px;
-}
-
-@keyframes move {
-    0% { transform: translate(0, 0) rotate(0deg) scale(1); }
-    33% { transform: translate(150px, 100px) rotate(120deg) scale(1.1); }
-    66% { transform: translate(-50px, 200px) rotate(240deg) scale(0.9); }
-    100% { transform: translate(0, 0) rotate(360deg) scale(1); }
-}
-
-.header-link {
-    font-size: 14px;
-    color: #fff;
-    text-decoration: none;
-    background: rgba(0, 0, 0, 0.2);
-    padding: 0.5rem 1rem;
-    border-radius: 8px;
-    transition: all 0.3s ease;
-}
-
-.header-link:hover {
-    background: rgba(0, 0, 0, 0.4);
-    text-decoration: none;
-}
-
-/* Admin Styles */
-.admin-container {
-    max-width: 900px;
-    margin: 3rem auto;
-    padding: 2.5rem;
-    background: rgba(255, 255, 255, 0.85);
-    backdrop-filter: blur(20px);
-    -webkit-backdrop-filter: blur(20px);
-    border-radius: 24px;
-    box-shadow: 0 20px 50px rgba(0,0,0,0.15);
-    border: 1px solid rgba(255, 255, 255, 0.4);
-    position: relative;
-    z-index: 1;
-}
-
-.admin-container h1 {
-    margin-top: 0;
-    color: #212529;
-    font-weight: 800;
-}
-
-.table {
-    width: 100%;
-    border-collapse: separate;
-    border-spacing: 0 8px;
-    margin-top: 1.5rem;
-}
-
-.table th {
-    background: transparent;
-    border: none;
-    padding: 1rem;
-    color: #6c757d;
-    font-weight: 600;
-    text-transform: uppercase;
-    font-size: 0.75rem;
-    letter-spacing: 1px;
-}
-
-.table td {
-    background: #fff;
-    padding: 1rem;
-    border: none;
-}
-
-.table tr td:first-child { border-radius: 12px 0 0 12px; }
-.table tr td:last-child { border-radius: 0 12px 12px 0; }
-
-.form-group {
-    margin-bottom: 1.25rem;
-}
-
-.form-group label {
-    display: block;
-    margin-bottom: 0.5rem;
-    font-weight: 600;
-    font-size: 0.9rem;
-}
-
-.form-control {
-    width: 100%;
-    padding: 0.75rem 1rem;
-    border: 1px solid rgba(0, 0, 0, 0.1);
-    border-radius: 12px;
-    background: #fff;
-    transition: all 0.3s ease;
-    box-sizing: border-box;
-}
-
-.form-control:focus {
-    outline: none;
-    border-color: #23a6d5;
-    box-shadow: 0 0 0 3px rgba(35, 166, 213, 0.1);
-}
-
-.header-container {
-    display: flex;
-    justify-content: space-between;
-    align-items: center;
-}
-
-.header-links {
-    display: flex;
-    gap: 1rem;
-}
-
-.admin-card {
-    background: rgba(255, 255, 255, 0.6);
-    padding: 2rem;
-    border-radius: 20px;
-    border: 1px solid rgba(255, 255, 255, 0.5);
-    margin-bottom: 2.5rem;
-    box-shadow: 0 10px 30px rgba(0,0,0,0.05);
-}
-
-.admin-card h3 {
-    margin-top: 0;
-    margin-bottom: 1.5rem;
-    font-weight: 700;
-}
-
-.btn-delete {
-    background: #dc3545;
-    color: white;
-    border: none;
-    padding: 0.25rem 0.5rem;
-    border-radius: 4px;
-    cursor: pointer;
-}
-
-.btn-add {
-    background: #212529;
-    color: white;
-    border: none;
-    padding: 0.5rem 1rem;
-    border-radius: 4px;
-    cursor: pointer;
-    margin-top: 1rem;
-}
-
-.btn-save {
-    background: #0088cc;
-    color: white;
-    border: none;
-    padding: 0.8rem 1.5rem;
-    border-radius: 12px;
-    cursor: pointer;
-    font-weight: 600;
-    width: 100%;
-    transition: all 0.3s ease;
-}
-
-.webhook-url {
-    font-size: 0.85em;
-    color: #555;
-    margin-top: 0.5rem;
-}
-
-.history-table-container {
-    overflow-x: auto;
-    background: rgba(255, 255, 255, 0.4);
-    padding: 1rem;
-    border-radius: 12px;
-    border: 1px solid rgba(255, 255, 255, 0.3);
-}
-
-.history-table {
-    width: 100%;
-}
-
-.history-table-time {
-    width: 15%;
-    white-space: nowrap;
-    font-size: 0.85em;
-    color: #555;
-}
-
-.history-table-user {
-    width: 35%;
-    background: rgba(255, 255, 255, 0.3);
-    border-radius: 8px;
-    padding: 8px;
-}
-
-.history-table-ai {
-    width: 50%;
-    background: rgba(255, 255, 255, 0.5);
-    border-radius: 8px;
-    padding: 8px;
-}
-
-.no-messages {
-    text-align: center;
-    color: #777;
-}
\ No newline at end of file
+body { font-family: 'Inter', sans-serif; color: var(--text); }
+.text-pink { color: var(--accent); }
+.btn-primary { background-color: var(--primary); border: none; }
+.hero-section { background: linear-gradient(135deg, var(--secondary) 0%, #FFFFFF 100%); }
+.card { transition: transform 0.3s ease; }
+.card:hover { transform: translateY(-10px); }
\ No newline at end of file
diff --git a/assets/images/factory-floor.svg b/assets/images/factory-floor.svg
new file mode 100644
index 0000000..ddfd727
--- /dev/null
+++ b/assets/images/factory-floor.svg
@@ -0,0 +1,12 @@
+<svg xmlns="http://www.w3.org/2000/svg" width="520" height="420" viewBox="0 0 520 420" fill="none">
+  <rect width="520" height="420" rx="20" fill="#F8FAFC"/>
+  <rect x="40" y="60" width="440" height="120" rx="12" fill="#E2E8F0"/>
+  <rect x="40" y="200" width="200" height="160" rx="12" fill="#CBD5F5"/>
+  <rect x="260" y="200" width="220" height="160" rx="12" fill="#E2E8F0"/>
+  <rect x="70" y="90" width="160" height="10" rx="5" fill="#0F766E"/>
+  <rect x="70" y="110" width="220" height="8" rx="4" fill="#94A3B8"/>
+  <circle cx="110" cy="270" r="32" fill="#0F766E"/>
+  <rect x="160" y="250" width="60" height="40" rx="8" fill="#94A3B8"/>
+  <rect x="300" y="240" width="140" height="16" rx="8" fill="#0F766E"/>
+  <rect x="300" y="270" width="120" height="10" rx="5" fill="#94A3B8"/>
+</svg>
diff --git a/assets/images/hero-structure.svg b/assets/images/hero-structure.svg
new file mode 100644
index 0000000..8c19f66
--- /dev/null
+++ b/assets/images/hero-structure.svg
@@ -0,0 +1,13 @@
+<svg xmlns="http://www.w3.org/2000/svg" width="640" height="420" viewBox="0 0 640 420" fill="none">
+  <rect width="640" height="420" rx="20" fill="#F8FAFC"/>
+  <rect x="48" y="48" width="544" height="120" rx="12" fill="#E2E8F0"/>
+  <rect x="48" y="192" width="260" height="180" rx="12" fill="#CBD5F5"/>
+  <rect x="332" y="192" width="260" height="180" rx="12" fill="#E2E8F0"/>
+  <rect x="72" y="72" width="180" height="12" rx="6" fill="#0F766E"/>
+  <rect x="72" y="96" width="280" height="10" rx="5" fill="#94A3B8"/>
+  <rect x="72" y="120" width="220" height="10" rx="5" fill="#94A3B8"/>
+  <rect x="72" y="216" width="200" height="12" rx="6" fill="#0F766E"/>
+  <rect x="72" y="240" width="150" height="10" rx="5" fill="#94A3B8"/>
+  <rect x="356" y="216" width="200" height="12" rx="6" fill="#0F766E"/>
+  <rect x="356" y="240" width="150" height="10" rx="5" fill="#94A3B8"/>
+</svg>
diff --git a/assets/images/product-flood.svg b/assets/images/product-flood.svg
new file mode 100644
index 0000000..89d0075
--- /dev/null
+++ b/assets/images/product-flood.svg
@@ -0,0 +1,6 @@
+<svg xmlns="http://www.w3.org/2000/svg" width="80" height="80" viewBox="0 0 80 80" fill="none">
+  <rect width="80" height="80" rx="16" fill="#F1F5F9"/>
+  <rect x="18" y="18" width="44" height="32" rx="10" fill="#CBD5F5"/>
+  <rect x="26" y="54" width="28" height="10" rx="5" fill="#0F766E"/>
+  <rect x="30" y="26" width="20" height="10" rx="5" fill="#94A3B8"/>
+</svg>
diff --git a/assets/images/product-highbay.svg b/assets/images/product-highbay.svg
new file mode 100644
index 0000000..36bdbe1
--- /dev/null
+++ b/assets/images/product-highbay.svg
@@ -0,0 +1,6 @@
+<svg xmlns="http://www.w3.org/2000/svg" width="80" height="80" viewBox="0 0 80 80" fill="none">
+  <rect width="80" height="80" rx="16" fill="#F1F5F9"/>
+  <rect x="18" y="20" width="44" height="20" rx="8" fill="#CBD5F5"/>
+  <rect x="26" y="44" width="28" height="14" rx="7" fill="#0F766E"/>
+  <rect x="34" y="14" width="12" height="8" rx="4" fill="#94A3B8"/>
+</svg>
diff --git a/assets/images/product-street.svg b/assets/images/product-street.svg
new file mode 100644
index 0000000..5d71cd4
--- /dev/null
+++ b/assets/images/product-street.svg
@@ -0,0 +1,6 @@
+<svg xmlns="http://www.w3.org/2000/svg" width="80" height="80" viewBox="0 0 80 80" fill="none">
+  <rect width="80" height="80" rx="16" fill="#F1F5F9"/>
+  <rect x="32" y="16" width="16" height="30" rx="8" fill="#CBD5F5"/>
+  <rect x="26" y="46" width="28" height="12" rx="6" fill="#0F766E"/>
+  <rect x="38" y="58" width="4" height="10" rx="2" fill="#94A3B8"/>
+</svg>
diff --git a/assets/images/product-tri.svg b/assets/images/product-tri.svg
new file mode 100644
index 0000000..af5f7e0
--- /dev/null
+++ b/assets/images/product-tri.svg
@@ -0,0 +1,6 @@
+<svg xmlns="http://www.w3.org/2000/svg" width="80" height="80" viewBox="0 0 80 80" fill="none">
+  <rect width="80" height="80" rx="16" fill="#F1F5F9"/>
+  <rect x="14" y="32" width="52" height="16" rx="8" fill="#CBD5F5"/>
+  <rect x="20" y="50" width="40" height="10" rx="5" fill="#0F766E"/>
+  <rect x="26" y="22" width="28" height="8" rx="4" fill="#94A3B8"/>
+</svg>
diff --git a/assets/js/main.js b/assets/js/main.js
index d349598..4caccb9 100644
--- a/assets/js/main.js
+++ b/assets/js/main.js
@@ -1,39 +1,8 @@
 document.addEventListener('DOMContentLoaded', () => {
-    const chatForm = document.getElementById('chat-form');
-    const chatInput = document.getElementById('chat-input');
-    const chatMessages = document.getElementById('chat-messages');
-
-    const appendMessage = (text, sender) => {
-        const msgDiv = document.createElement('div');
-        msgDiv.classList.add('message', sender);
-        msgDiv.textContent = text;
-        chatMessages.appendChild(msgDiv);
-        chatMessages.scrollTop = chatMessages.scrollHeight;
-    };
-
-    chatForm.addEventListener('submit', async (e) => {
-        e.preventDefault();
-        const message = chatInput.value.trim();
-        if (!message) return;
-
-        appendMessage(message, 'visitor');
-        chatInput.value = '';
-
-        try {
-            const response = await fetch('api/chat.php', {
-                method: 'POST',
-                headers: { 'Content-Type': 'application/json' },
-                body: JSON.stringify({ message })
-            });
-            const data = await response.json();
-            
-            // Artificial delay for realism
-            setTimeout(() => {
-                appendMessage(data.reply, 'bot');
-            }, 500);
-        } catch (error) {
-            console.error('Error:', error);
-            appendMessage("Sorry, something went wrong. Please try again.", 'bot');
-        }
-    });
+  const alerts = document.querySelectorAll('.alert[data-auto-dismiss]');
+  alerts.forEach((alert) => {
+    setTimeout(() => {
+      alert.classList.add('fade');
+    }, 3500);
+  });
 });
diff --git a/contact.php b/contact.php
new file mode 100644
index 0000000..eb771e6
--- /dev/null
+++ b/contact.php
@@ -0,0 +1,61 @@
+<?php
+declare(strict_types=1);
+@date_default_timezone_set('UTC');
+
+require_once __DIR__ . '/includes/data.php';
+
+$lang = 'en';
+$site = site_config($lang);
+$pageTitle = $site['brand'] . ' | Contact';
+$pageDescription = 'Reach our sales engineers on WhatsApp for product inquiries.';
+$assetVersion = (string) time();
+$navItems = $site['nav'];
+$langSwitchUrl = '/zh/contact.php';
+
+$whatsAppLink = 'https://wa.me/' . $site['whatsapp_number'] . '?text=' . urlencode($site['whatsapp_message']);
+?>
+<?php require __DIR__ . '/includes/header.php'; ?>
+
+<main>
+  <section class="page-hero">
+    <div class="container">
+      <div class="hero-panel">
+        <h1 class="display-6 fw-semibold">Contact our sales engineers</h1>
+        <p class="text-muted">Fast response via WhatsApp for quotations, catalogs, and OEM customization.</p>
+      </div>
+    </div>
+  </section>
+
+  <section class="section-block pt-0">
+    <div class="container">
+      <div class="row g-4">
+        <div class="col-lg-6">
+          <div class="detail-card h-100">
+            <h2 class="h5">WhatsApp direct line</h2>
+            <p class="text-muted">Our Malaysia-based WhatsApp line is ready for product inquiries and technical consultations.</p>
+            <a class="btn btn-primary" href="<?= htmlspecialchars($whatsAppLink) ?>" target="_blank" rel="noopener">
+              <i class="bi bi-whatsapp me-2"></i>Message on WhatsApp
+            </a>
+            <div class="mt-3 small text-muted">Number: <?= htmlspecialchars($site['whatsapp_number']) ?></div>
+          </div>
+        </div>
+        <div class="col-lg-6">
+          <div class="detail-card h-100">
+            <h2 class="h5">Inquiry checklist</h2>
+            <ul class="small">
+              <li>Project location and environment</li>
+              <li>Target wattage / lumen output</li>
+              <li>Certification requirements (CE/CB/SASO)</li>
+              <li>Desired delivery timeline</li>
+            </ul>
+            <div class="alert alert-light mt-3" role="alert">
+              For testing: please replace <strong>60XXXXXXXXX</strong> in <code>includes/data.php</code> with your real WhatsApp number.
+            </div>
+          </div>
+        </div>
+      </div>
+    </div>
+  </section>
+</main>
+
+<?php require __DIR__ . '/includes/footer.php'; ?>
diff --git a/includes/data.php b/includes/data.php
new file mode 100644
index 0000000..327ebbe
--- /dev/null
+++ b/includes/data.php
@@ -0,0 +1,92 @@
+<?php
+declare(strict_types=1);
+
+function site_config(string $lang = 'en'): array
+{
+    $whatsAppNumber = '60123456789'; 
+    $whatsAppMessage = $lang === 'zh'
+        ? '你好，我想咨询你们的高端美白护肤方案。'
+        : 'Hello, I would like to inquire about your luxury whitening skincare solutions.';
+
+    $nav = [
+        'en' => [
+            ['label' => 'Home', 'url' => '/index.php'],
+            ['label' => 'Products', 'url' => '/products.php'],
+            ['label' => 'Science', 'url' => '/technology.php'],
+            ['label' => 'About', 'url' => '/about.php'],
+            ['label' => 'Contact', 'url' => '/contact.php'],
+        ],
+        'zh' => [
+            ['label' => '首页', 'url' => '/zh/index.php'],
+            ['label' => '产品中心', 'url' => '/zh/products.php'],
+            ['label' => '核心科技', 'url' => '/zh/technology.php'],
+            ['label' => '品牌故事', 'url' => '/zh/about.php'],
+            ['label' => '联系我们', 'url' => '/zh/contact.php'],
+        ]
+    ];
+
+    if ($lang === 'zh') {
+        return [
+            'brand' => 'Lumière',
+            'tagline' => '高端美白 · 科技护肤 · 奢享璀璨',
+            'whatsapp_number' => $whatsAppNumber,
+            'whatsapp_message' => $whatsAppMessage,
+            'nav' => $nav['zh'],
+        ];
+    }
+
+    return [
+        'brand' => 'Lumière',
+        'tagline' => 'Luxury Whitening · Advanced Skincare Science',
+        'whatsapp_number' => $whatsAppNumber,
+        'whatsapp_message' => $whatsAppMessage,
+        'nav' => $nav['en'],
+    ];
+}
+
+function get_products(string $lang = 'en'): array
+{
+    if ($lang === 'zh') {
+        return [
+            [
+                'id' => 1,
+                'name' => '璀璨焕亮精华液',
+                'description' => '深层渗透，激活肌肤底层的透亮光感。',
+                'image' => '/assets/images/product-street.svg',
+            ],
+            [
+                'id' => 2,
+                'name' => '奢宠美白日霜',
+                'description' => '轻盈丝滑，为肌肤提供全天候的修护与滋润。',
+                'image' => '/assets/images/product-highbay.svg',
+            ],
+            [
+                'id' => 3,
+                'name' => '净透舒缓修护膜',
+                'description' => '舒缓镇静，赋予肌肤纯净无瑕的通透感。',
+                'image' => '/assets/images/product-tri.svg',
+            ],
+        ];
+    }
+
+    return [
+        [
+            'id' => 1,
+            'name' => 'Luminous Radiance Serum',
+            'description' => 'Deep penetration to activate the underlying light of your skin.',
+            'image' => '/assets/images/product-street.svg',
+        ],
+        [
+            'id' => 2,
+            'name' => 'Luxury Whitening Day Cream',
+            'description' => 'Light and silky, providing all-day repair and hydration.',
+            'image' => '/assets/images/product-highbay.svg',
+        ],
+        [
+            'id' => 3,
+            'name' => 'Pure Clarifying Mask',
+            'description' => 'Soothing and calming, bestowing a pure, flawless clarity.',
+            'image' => '/assets/images/product-tri.svg',
+        ],
+    ];
+}
\ No newline at end of file
diff --git a/includes/footer.php b/includes/footer.php
new file mode 100644
index 0000000..7890946
--- /dev/null
+++ b/includes/footer.php
@@ -0,0 +1,44 @@
+<?php
+$year = date('Y');
+$whatsAppLink = $whatsAppLink ?? 'https://wa.me/' . $site['whatsapp_number'];
+?>
+  <footer class="site-footer">
+    <div class="container">
+      <div class="row g-4">
+        <div class="col-lg-4">
+          <div class="footer-brand"><?= htmlspecialchars($site['brand']) ?></div>
+          <p class="text-muted small"><?= htmlspecialchars($site['tagline']) ?></p>
+          <div class="footer-contact">
+            <div><span class="text-muted">WhatsApp:</span> <a href="<?= htmlspecialchars($whatsAppLink) ?>" target="_blank" rel="noopener"><?= htmlspecialchars($site['whatsapp_number']) ?></a></div>
+            <div><span class="text-muted"><?= $lang === 'zh' ? '邮箱' : 'Email' ?>:</span> sales@shinehigh.cn</div>
+          </div>
+        </div>
+        <div class="col-lg-4">
+          <h3 class="h6"><?= $lang === 'zh' ? '解决方案' : 'Solutions' ?></h3>
+          <ul class="list-unstyled small">
+            <li><?= $lang === 'zh' ? '工业厂房照明' : 'Industrial facility lighting' ?></li>
+            <li><?= $lang === 'zh' ? '体育场与户外' : 'Stadium & outdoor' ?></li>
+            <li><?= $lang === 'zh' ? '物流仓储' : 'Warehouse logistics' ?></li>
+            <li><?= $lang === 'zh' ? '市政道路' : 'Municipal road' ?></li>
+          </ul>
+        </div>
+        <div class="col-lg-4">
+          <h3 class="h6"><?= $lang === 'zh' ? '下载' : 'Downloads' ?></h3>
+          <ul class="list-unstyled small">
+            <li><?= $lang === 'zh' ? '公司简介' : 'Company profile' ?></li>
+            <li><?= $lang === 'zh' ? '产品目录' : 'Product catalog' ?></li>
+            <li><?= $lang === 'zh' ? '认证证书' : 'Certificates' ?></li>
+            <li><?= $lang === 'zh' ? '售后流程' : 'Service policy' ?></li>
+          </ul>
+        </div>
+      </div>
+      <div class="footer-bottom">
+        <span>© <?= htmlspecialchars((string) $year) ?> <?= htmlspecialchars($site['brand']) ?>. <?= $lang === 'zh' ? '版权所有' : 'All rights reserved.' ?></span>
+      </div>
+    </div>
+  </footer>
+
+  <script src="https://cdn.jsdelivr.net/npm/bootstrap@5.3.3/dist/js/bootstrap.bundle.min.js"></script>
+  <script src="/assets/js/main.js?v=<?= htmlspecialchars($assetVersion) ?>"></script>
+</body>
+</html>
diff --git a/includes/header.php b/includes/header.php
new file mode 100644
index 0000000..c506fdf
--- /dev/null
+++ b/includes/header.php
@@ -0,0 +1,68 @@
+<?php
+$lang = $lang ?? 'en';
+$site = $site ?? site_config($lang);
+$navItems = $navItems ?? $site['nav'];
+$pageTitle = $pageTitle ?? $site['brand'];
+$pageDescription = $pageDescription ?? '';
+$assetVersion = $assetVersion ?? (string) time();
+$langSwitchUrl = $langSwitchUrl ?? '/zh/index.php';
+
+$projectDescription = $_SERVER['PROJECT_DESCRIPTION'] ?? '';
+$projectImageUrl = $_SERVER['PROJECT_IMAGE_URL'] ?? '';
+$metaDescription = $projectDescription !== '' ? $projectDescription : $pageDescription;
+
+$whatsAppLink = 'https://wa.me/' . $site['whatsapp_number'] . '?text=' . urlencode($site['whatsapp_message']);
+?>
+<!doctype html>
+<html lang="<?= htmlspecialchars($lang) ?>">
+<head>
+  <meta charset="utf-8" />
+  <meta name="viewport" content="width=device-width, initial-scale=1" />
+  <title><?= htmlspecialchars($pageTitle) ?></title>
+  <?php if ($metaDescription): ?>
+    <meta name="description" content="<?= htmlspecialchars($metaDescription) ?>" />
+    <meta property="og:description" content="<?= htmlspecialchars($metaDescription) ?>" />
+    <meta property="twitter:description" content="<?= htmlspecialchars($metaDescription) ?>" />
+  <?php endif; ?>
+  <?php if ($projectImageUrl): ?>
+    <meta property="og:image" content="<?= htmlspecialchars($projectImageUrl) ?>" />
+    <meta property="twitter:image" content="<?= htmlspecialchars($projectImageUrl) ?>" />
+  <?php endif; ?>
+  <link rel="preconnect" href="https://fonts.googleapis.com">
+  <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
+  <link href="https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap" rel="stylesheet">
+  <link href="https://cdn.jsdelivr.net/npm/bootstrap@5.3.3/dist/css/bootstrap.min.css" rel="stylesheet">
+  <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/bootstrap-icons@1.11.3/font/bootstrap-icons.min.css">
+  <link rel="stylesheet" href="/assets/css/custom.css?v=<?= htmlspecialchars($assetVersion) ?>">
+</head>
+<body>
+  <header class="site-header sticky-top">
+    <nav class="navbar navbar-expand-lg">
+      <div class="container">
+        <a class="navbar-brand" href="<?= htmlspecialchars($lang === 'zh' ? '/zh/index.php' : '/index.php') ?>">
+          <span class="brand-mark">SH</span>
+          <span class="brand-text"><?= htmlspecialchars($site['brand']) ?></span>
+        </a>
+        <button class="navbar-toggler" type="button" data-bs-toggle="collapse" data-bs-target="#primaryNav">
+          <span class="navbar-toggler-icon"></span>
+        </button>
+        <div class="collapse navbar-collapse" id="primaryNav">
+          <ul class="navbar-nav ms-auto mb-2 mb-lg-0">
+            <?php foreach ($navItems as $item): ?>
+              <li class="nav-item">
+                <a class="nav-link px-3" href="<?= htmlspecialchars($item['url']) ?>"><?= htmlspecialchars($item['label']) ?></a>
+              </li>
+            <?php endforeach; ?>
+          </ul>
+          <div class="d-flex align-items-center gap-2 ms-lg-3">
+            <a class="btn btn-sm btn-outline-secondary" href="<?= htmlspecialchars($langSwitchUrl) ?>"><?= $lang === 'zh' ? 'EN' : '中文' ?></a>
+            <a class="btn btn-sm btn-primary" href="<?= htmlspecialchars($whatsAppLink) ?>" target="_blank" rel="noopener">WhatsApp</a>
+          </div>
+        </div>
+      </div>
+    </nav>
+  </header>
+
+  <a class="whatsapp-float" href="<?= htmlspecialchars($whatsAppLink) ?>" target="_blank" rel="noopener" aria-label="Chat on WhatsApp">
+    <i class="bi bi-whatsapp"></i>
+  </a>
diff --git a/index.php b/index.php
index 7205f3d..f8d542c 100644
--- a/index.php
+++ b/index.php
@@ -1,150 +1,110 @@
 <?php
 declare(strict_types=1);
-@ini_set('display_errors', '1');
-@error_reporting(E_ALL);
-@date_default_timezone_set('UTC');
+require_once __DIR__ . '/includes/data.php';
 
-$phpVersion = PHP_VERSION;
-$now = date('Y-m-d H:i:s');
+$lang = 'en';
+$site = site_config($lang);
+$products = get_products($lang);
 ?>
-<!doctype html>
-<html lang="en">
-<head>
-  <meta charset="utf-8" />
-  <meta name="viewport" content="width=device-width, initial-scale=1" />
-  <title>New Style</title>
-<?php
-// Read project preview data from environment
-$projectDescription = $_SERVER['PROJECT_DESCRIPTION'] ?? '';
-$projectImageUrl = $_SERVER['PROJECT_IMAGE_URL'] ?? '';
-?>
-<?php if ($projectDescription): ?>
-  <!-- Meta description -->
-  <meta name="description" content='<?= htmlspecialchars($projectDescription) ?>' />
-  <!-- Open Graph meta tags -->
-  <meta property="og:description" content="<?= htmlspecialchars($projectDescription) ?>" />
-  <!-- Twitter meta tags -->
-  <meta property="twitter:description" content="<?= htmlspecialchars($projectDescription) ?>" />
-<?php endif; ?>
-<?php if ($projectImageUrl): ?>
-  <!-- Open Graph image -->
-  <meta property="og:image" content="<?= htmlspecialchars($projectImageUrl) ?>" />
-  <!-- Twitter image -->
-  <meta property="twitter:image" content="<?= htmlspecialchars($projectImageUrl) ?>" />
-<?php endif; ?>
-  <link rel="preconnect" href="https://fonts.googleapis.com">
-  <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
-  <link href="https://fonts.googleapis.com/css2?family=Inter:wght@400;700&display=swap" rel="stylesheet">
-  <style>
-    :root {
-      --bg-color-start: #6a11cb;
-      --bg-color-end: #2575fc;
-      --text-color: #ffffff;
-      --card-bg-color: rgba(255, 255, 255, 0.01);
-      --card-border-color: rgba(255, 255, 255, 0.1);
-    }
-    body {
-      margin: 0;
-      font-family: 'Inter', sans-serif;
-      background: linear-gradient(45deg, var(--bg-color-start), var(--bg-color-end));
-      color: var(--text-color);
-      display: flex;
-      justify-content: center;
-      align-items: center;
-      min-height: 100vh;
-      text-align: center;
-      overflow: hidden;
-      position: relative;
-    }
-    body::before {
-      content: '';
-      position: absolute;
-      top: 0;
-      left: 0;
-      width: 100%;
-      height: 100%;
-      background-image: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" width="100" height="100" viewBox="0 0 100 100"><path d="M-10 10L110 10M10 -10L10 110" stroke-width="1" stroke="rgba(255,255,255,0.05)"/></svg>');
-      animation: bg-pan 20s linear infinite;
-      z-index: -1;
-    }
-    @keyframes bg-pan {
-      0% { background-position: 0% 0%; }
-      100% { background-position: 100% 100%; }
-    }
-    main {
-      padding: 2rem;
-    }
-    .card {
-      background: var(--card-bg-color);
-      border: 1px solid var(--card-border-color);
-      border-radius: 16px;
-      padding: 2rem;
-      backdrop-filter: blur(20px);
-      -webkit-backdrop-filter: blur(20px);
-      box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.1);
-    }
-    .loader {
-      margin: 1.25rem auto 1.25rem;
-      width: 48px;
-      height: 48px;
-      border: 3px solid rgba(255, 255, 255, 0.25);
-      border-top-color: #fff;
-      border-radius: 50%;
-      animation: spin 1s linear infinite;
-    }
-    @keyframes spin {
-      from { transform: rotate(0deg); }
-      to   { transform: rotate(360deg); }
-    }
-    .hint {
-      opacity: 0.9;
-    }
-    .sr-only {
-      position: absolute;
-      width: 1px; height: 1px;
-      padding: 0; margin: -1px;
-      overflow: hidden;
-      clip: rect(0, 0, 0, 0);
-      white-space: nowrap; border: 0;
-    }
-    h1 {
-      font-size: 3rem;
-      font-weight: 700;
-      margin: 0 0 1rem;
-      letter-spacing: -1px;
-    }
-    p {
-      margin: 0.5rem 0;
-      font-size: 1.1rem;
-    }
-    code {
-      background: rgba(0,0,0,0.2);
-      padding: 2px 6px;
-      border-radius: 4px;
-      font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
-    }
-    footer {
-      position: absolute;
-      bottom: 1rem;
-      font-size: 0.8rem;
-      opacity: 0.7;
-    }
-  </style>
-</head>
-<body>
-  <main>
-    <div class="card">
-      <h1>Analyzing your requirements and generating your website…</h1>
-      <div class="loader" role="status" aria-live="polite" aria-label="Applying initial changes">
-        <span class="sr-only">Loading…</span>
+<?php require __DIR__ . '/includes/header.php'; ?>
+
+<main class="skincare-landing">
+  <!-- 1. Hero Section -->
+  <section class="hero-section py-5 d-flex align-items-center" style="background: #FFF5F7; min-height: 80vh;">
+    <div class="container">
+      <div class="row align-items-center">
+        <div class="col-lg-6">
+          <h1 class="display-2 fw-bold" style="color: #D4AF37;">Lumière Whitening</h1>
+          <p class="lead mb-4 text-secondary">Revolutionizing skincare through advanced bio-luminescence science. Reveal your inner radiance with our luxury whitening solutions.</p>
+          <a class="btn btn-lg" style="background: #D4AF37; color: white;" href="/products.php">Discover Collection</a>
+        </div>
+        <div class="col-lg-6 text-center">
+          <img src="/assets/images/product-street.svg" class="img-fluid rounded-circle shadow-lg" alt="Whitening Skincare">
+        </div>
       </div>
-      <p class="hint"><?= ($_SERVER['HTTP_HOST'] ?? '') === 'appwizzy.com' ? 'AppWizzy' : 'Flatlogic' ?> AI is collecting your requirements and applying the first changes.</p>
-      <p class="hint">This page will update automatically as the plan is implemented.</p>
-      <p>Runtime: PHP <code><?= htmlspecialchars($phpVersion) ?></code> — UTC <code><?= htmlspecialchars($now) ?></code></p>
     </div>
-  </main>
-  <footer>
-    Page updated: <?= htmlspecialchars($now) ?> (UTC)
-  </footer>
-</body>
-</html>
+  </section>
+
+  <!-- 2. Core Advantages -->
+  <section class="py-5 bg-white">
+    <div class="container text-center">
+      <h2 class="mb-5">Our Luxury Advantages</h2>
+      <div class="row g-4">
+        <div class="col-md-3"><div class="p-4 border rounded"><i class="bi bi-gem fs-1 text-pink"></i><h4>Purity</h4></div></div>
+        <div class="col-md-3"><div class="p-4 border rounded"><i class="bi bi-shield-check fs-1 text-pink"></i><h4>Science-Backed</h4></div></div>
+        <div class="col-md-3"><div class="p-4 border rounded"><i class="bi bi-flower1 fs-1 text-pink"></i><h4>Organic</h4></div></div>
+        <div class="col-md-3"><div class="p-4 border rounded"><i class="bi bi-star fs-1 text-pink"></i><h4>Premium Quality</h4></div></div>
+      </div>
+    </div>
+  </section>
+
+  <!-- 3. Product Showcase -->
+  <section class="py-5" style="background: #F9FAFB;">
+    <div class="container">
+      <h2 class="text-center mb-5">Signature Collection</h2>
+      <div class="row g-4">
+        <?php foreach (array_slice($products, 0, 3) as $product): ?>
+          <div class="col-md-4">
+            <div class="card border-0 shadow-sm h-100">
+              <img src="<?= $product['image'] ?>" class="card-img-top" alt="<?= $product['name'] ?>">
+              <div class="card-body text-center"><h5><?= $product['name'] ?></h5><p class="text-secondary"><?= $product['description'] ?></p></div>
+            </div>
+          </div>
+        <?php endforeach; ?>
+      </div>
+    </div>
+  </section>
+
+  <!-- 4. Technology -->
+  <section class="py-5 bg-white">
+    <div class="container">
+      <div class="row align-items-center">
+        <div class="col-lg-6"><img src="/assets/images/factory-floor.svg" class="img-fluid" alt="Tech"></div>
+        <div class="col-lg-6"><h2>Advanced Whitening Tech</h2><p>Our proprietary enzyme-activation technology targets melanin at the source, ensuring visible brightness with zero irritation.</p></div>
+      </div>
+    </div>
+  </section>
+
+  <!-- 5. Before/After -->
+  <section class="py-5 text-center" style="background: #FFF5F7;">
+    <div class="container">
+      <h2 class="mb-5">The Visible Transformation</h2>
+      <div class="row">
+        <div class="col-md-6"><img src="/assets/images/product-highbay.svg" class="img-fluid" alt="Before"><p>Before</p></div>
+        <div class="col-md-6"><img src="/assets/images/product-tri.svg" class="img-fluid" alt="After"><p>After 28 Days</p></div>
+      </div>
+    </div>
+  </section>
+
+  <!-- 6. Reviews -->
+  <section class="py-5 bg-white">
+    <div class="container">
+      <h2 class="text-center mb-5">Client Praise</h2>
+      <div class="row g-4">
+        <?php for($i=0; $i<3; $i++): ?>
+        <div class="col-md-4"><div class="p-4 border rounded shadow-sm">"Absolutely stunning results. My skin has never felt this luminous." <br><b>- Sarah L.</b></div></div>
+        <?php endfor; ?>
+      </div>
+    </div>
+  </section>
+
+  <!-- 7. Knowledge & 8. About -->
+  <section class="py-5 bg-light">
+    <div class="container">
+      <div class="row">
+        <div class="col-md-6"><h3>Expert Skincare Knowledge</h3><p>Understanding the science behind whitening...</p></div>
+        <div class="col-md-6"><h3>Our Heritage</h3><p>Founded by cosmetic scientists in 2010...</p></div>
+      </div>
+    </div>
+  </section>
+
+  <!-- 9. Contact -->
+  <section class="py-5 text-center">
+    <div class="container">
+      <h2>Connect With Beauty</h2>
+      <a href="/contact.php" class="btn btn-outline-dark">Schedule Consultation</a>
+    </div>
+  </section>
+</main>
+
+<?php require __DIR__ . '/includes/footer.php'; ?>
\ No newline at end of file
diff --git a/news.php b/news.php
new file mode 100644
index 0000000..8f4948e
--- /dev/null
+++ b/news.php
@@ -0,0 +1,52 @@
+<?php
+declare(strict_types=1);
+@date_default_timezone_set('UTC');
+
+require_once __DIR__ . '/includes/data.php';
+
+$lang = 'en';
+$site = site_config($lang);
+$pageTitle = $site['brand'] . ' | News';
+$pageDescription = 'Production updates, certifications, and delivery highlights.';
+$assetVersion = (string) time();
+$navItems = $site['nav'];
+$langSwitchUrl = '/zh/news.php';
+
+$newsItems = get_news($lang);
+?>
+<?php require __DIR__ . '/includes/header.php'; ?>
+
+<main>
+  <section class="page-hero">
+    <div class="container">
+      <div class="hero-panel">
+        <h1 class="display-6 fw-semibold">Factory news &amp; updates</h1>
+        <p class="text-muted">Stay informed with certifications, delivery milestones, and product releases.</p>
+      </div>
+    </div>
+  </section>
+
+  <section class="section-block pt-0">
+    <div class="container">
+      <div class="row g-4">
+        <?php foreach ($newsItems as $item): ?>
+          <div class="col-lg-4">
+            <article class="card h-100">
+              <div class="card-body">
+                <div class="text-uppercase small text-muted"><?= htmlspecialchars($item['date']) ?></div>
+                <h2 class="h5 mt-2"><?= htmlspecialchars($item['title']) ?></h2>
+                <p class="text-muted small"><?= htmlspecialchars($item['summary']) ?></p>
+                <span class="text-muted small">Read more in WhatsApp updates.</span>
+              </div>
+            </article>
+          </div>
+        <?php endforeach; ?>
+      </div>
+      <div class="alert alert-light mt-4" role="alert" data-auto-dismiss="true">
+        Need a project update? Reach our team via WhatsApp for live production status.
+      </div>
+    </div>
+  </section>
+</main>
+
+<?php require __DIR__ . '/includes/footer.php'; ?>
diff --git a/product.php b/product.php
new file mode 100644
index 0000000..c3b90b4
--- /dev/null
+++ b/product.php
@@ -0,0 +1,60 @@
+<?php
+declare(strict_types=1);
+@date_default_timezone_set('UTC');
+
+require_once __DIR__ . '/includes/data.php';
+
+$lang = 'en';
+$site = site_config($lang);
+$productData = get_products($lang);
+$productId = isset($_GET['id']) ? (int) $_GET['id'] : 0;
+$selected = null;
+
+foreach ($productData as $product) {
+    if ($product['id'] === $productId) {
+        $selected = $product;
+        break;
+    }
+}
+
+$pageTitle = $selected ? $selected['name'] . ' | ' . $site['brand'] : 'Product Detail | ' . $site['brand'];
+?>
+<?php require __DIR__ . '/includes/header.php'; ?>
+
+<main class="container my-5">
+  <?php if (!$selected): ?>
+    <div class="alert alert-warning">Product not found.</div>
+    <a class="btn btn-primary" href="/products.php">Back to products</a>
+  <?php else: ?>
+    <div class="row">
+      <div class="col-md-6">
+        <!-- Carousel -->
+        <div id="productCarousel" class="carousel slide" data-bs-ride="carousel">
+          <div class="carousel-inner">
+            <?php foreach ($selected['images'] as $index => $img): ?>
+              <div class="carousel-item <?= $index === 0 ? 'active' : '' ?>">
+                <img src="<?= htmlspecialchars($img) ?>" class="d-block w-100" alt="Product Image">
+              </div>
+            <?php endforeach; ?>
+          </div>
+          <button class="carousel-control-prev" type="button" data-bs-target="#productCarousel" data-bs-slide="prev">
+            <span class="carousel-control-prev-icon bg-dark"></span>
+          </button>
+          <button class="carousel-control-next" type="button" data-bs-target="#productCarousel" data-bs-slide="next">
+            <span class="carousel-control-next-icon bg-dark"></span>
+          </button>
+        </div>
+      </div>
+      <div class="col-md-6">
+        <h1><?= htmlspecialchars($selected['name']) ?></h1>
+        <p class="lead text-muted"><?= htmlspecialchars($selected['summary']) ?></p>
+        <p><?= htmlspecialchars($selected['details']) ?></p>
+        <a class="btn btn-lg btn-success" href="https://wa.me/<?= $site['whatsapp_number'] ?>?text=<?= urlencode($site['whatsapp_message']) ?>">
+           Contact on WhatsApp
+        </a>
+      </div>
+    </div>
+  <?php endif; ?>
+</main>
+
+<?php require __DIR__ . '/includes/footer.php'; ?>
\ No newline at end of file
diff --git a/products.php b/products.php
new file mode 100644
index 0000000..ebf9fa8
--- /dev/null
+++ b/products.php
@@ -0,0 +1,59 @@
+<?php
+declare(strict_types=1);
+@date_default_timezone_set('UTC');
+
+require_once __DIR__ . '/includes/data.php';
+
+$lang = 'en';
+$site = site_config($lang);
+$pageTitle = $site['brand'] . ' | Products';
+$pageDescription = 'Browse our industrial lighting categories engineered for global projects.';
+$assetVersion = (string) time();
+$navItems = $site['nav'];
+$langSwitchUrl = '/zh/products.php';
+
+$products = get_products($lang);
+?>
+<?php require __DIR__ . '/includes/header.php'; ?>
+
+<main>
+  <section class="page-hero">
+    <div class="container">
+      <div class="hero-panel">
+        <div class="row align-items-center g-4">
+          <div class="col-lg-7">
+            <h1 class="display-6 fw-semibold">Industrial product portfolio</h1>
+            <p class="text-muted">Choose from high bay, flood, tri-proof, and street lighting lines with clear documentation for procurement teams.</p>
+          </div>
+          <div class="col-lg-5 text-lg-end">
+            <span class="badge badge-soft"><?= count($products) ?> categories</span>
+          </div>
+        </div>
+      </div>
+    </div>
+  </section>
+
+  <section class="section-block pt-0">
+    <div class="container">
+      <div class="row g-4">
+        <?php foreach ($products as $product): ?>
+          <div class="col-md-6 col-lg-4">
+            <article class="card h-100 product-card">
+              <div class="card-body">
+                <img class="product-icon" src="<?= htmlspecialchars($product['image']) ?>" alt="<?= htmlspecialchars($product['name']) ?>" width="64" height="64" />
+                <h2 class="h5"><?= htmlspecialchars($product['name']) ?></h2>
+                <p class="text-muted small"><?= htmlspecialchars($product['summary']) ?></p>
+                <div class="d-flex gap-2 mt-3">
+                  <a class="btn btn-sm btn-primary" href="/product.php?id=<?= urlencode((string) $product['id']) ?>">View detail</a>
+                  <a class="btn btn-sm btn-outline-secondary" href="/contact.php">Request quote</a>
+                </div>
+              </div>
+            </article>
+          </div>
+        <?php endforeach; ?>
+      </div>
+    </div>
+  </section>
+</main>
+
+<?php require __DIR__ . '/includes/footer.php'; ?>
diff --git a/services.php b/services.php
new file mode 100644
index 0000000..bd000b1
--- /dev/null
+++ b/services.php
@@ -0,0 +1,24 @@
+<?php
+require_once __DIR__ . '/includes/data.php';
+$lang = 'en';
+$site = site_config($lang);
+?>
+<?php require __DIR__ . '/includes/header.php'; ?>
+<main class="container py-5">
+  <h1>Services & Customization</h1>
+  <div class="row g-4">
+    <div class="col-md-6">
+      <div class="card p-4">
+        <h3>OEM Manufacturing</h3>
+        <p>Full-scale production for established brands using our proven whitening formulas.</p>
+      </div>
+    </div>
+    <div class="col-md-6">
+      <div class="card p-4">
+        <h3>ODM/CDMO Solutions</h3>
+        <p>End-to-end product development, from ingredient research to final packaging.</p>
+      </div>
+    </div>
+  </div>
+</main>
+<?php require __DIR__ . '/includes/footer.php'; ?>
diff --git a/technology.php b/technology.php
new file mode 100644
index 0000000..7c267c9
--- /dev/null
+++ b/technology.php
@@ -0,0 +1,25 @@
+<?php
+require_once __DIR__ . '/includes/data.php';
+$lang = 'en';
+$site = site_config($lang);
+?>
+<?php require __DIR__ . '/includes/header.php'; ?>
+<main class="container py-5">
+  <h1>Core Technology</h1>
+  <p class="lead">Pioneering whitening materials and bio-active formulations.</p>
+  <div class="row g-4">
+    <div class="col-md-6">
+      <div class="card p-4">
+        <h3>Research Platforms</h3>
+        <p>Our labs focus on advanced molecular pathways to inhibit melanin production.</p>
+      </div>
+    </div>
+    <div class="col-md-6">
+      <div class="card p-4">
+        <h3>Innovation Advantages</h3>
+        <p>Sustainable, high-efficacy formulations that exceed global industry standards.</p>
+      </div>
+    </div>
+  </div>
+</main>
+<?php require __DIR__ . '/includes/footer.php'; ?>
diff --git a/zh/about.php b/zh/about.php
new file mode 100644
index 0000000..bfbae9d
--- /dev/null
+++ b/zh/about.php
@@ -0,0 +1,65 @@
+<?php
+declare(strict_types=1);
+@date_default_timezone_set('UTC');
+
+require_once __DIR__ . '/../includes/data.php';
+
+$lang = 'zh';
+$site = site_config($lang);
+$pageTitle = $site['brand'] . ' | 关于我们';
+$pageDescription = '了解工厂实力与工程团队。';
+$assetVersion = (string) time();
+$navItems = $site['nav'];
+$langSwitchUrl = '/about.php';
+
+$highlights = get_highlights($lang);
+$facts = get_company_facts($lang);
+?>
+<?php require __DIR__ . '/../includes/header.php'; ?>
+
+<main>
+  <section class="page-hero">
+    <div class="container">
+      <div class="hero-panel">
+        <h1 class="display-6 fw-semibold">以工程为核心的工业照明制造商</h1>
+        <p class="text-muted">涵盖研发、生产、光学测试与全球出货协同的完整制造链路。</p>
+      </div>
+    </div>
+  </section>
+
+  <section class="section-block pt-0">
+    <div class="container">
+      <div class="row g-4 align-items-center">
+        <div class="col-lg-6">
+          <img class="w-100 rounded-3 shadow-sm" src="/assets/images/factory-floor.svg" alt="工程与测试中心" width="520" height="420" />
+        </div>
+        <div class="col-lg-6">
+          <h2>我们的核心优势</h2>
+          <p class="text-muted">从LED驱动选型到光学报告，严格控制每一道工艺，为全球客户提供稳定品质。</p>
+          <div class="row g-3 mt-3">
+            <?php foreach ($highlights as $highlight): ?>
+              <div class="col-md-6">
+                <div class="feature-box">
+                  <h3 class="h6"><?= htmlspecialchars($highlight['title']) ?></h3>
+                  <p class="small text-muted mb-0"><?= htmlspecialchars($highlight['text']) ?></p>
+                </div>
+              </div>
+            <?php endforeach; ?>
+          </div>
+        </div>
+      </div>
+      <div class="row g-4 mt-4">
+        <?php foreach ($facts as $fact): ?>
+          <div class="col-sm-6 col-lg-3">
+            <div class="detail-card text-center">
+              <div class="h4 mb-1"><?= htmlspecialchars($fact['value']) ?></div>
+              <div class="text-muted small"><?= htmlspecialchars($fact['label']) ?></div>
+            </div>
+          </div>
+        <?php endforeach; ?>
+      </div>
+    </div>
+  </section>
+</main>
+
+<?php require __DIR__ . '/../includes/footer.php'; ?>
diff --git a/zh/contact.php b/zh/contact.php
new file mode 100644
index 0000000..02e11a3
--- /dev/null
+++ b/zh/contact.php
@@ -0,0 +1,61 @@
+<?php
+declare(strict_types=1);
+@date_default_timezone_set('UTC');
+
+require_once __DIR__ . '/../includes/data.php';
+
+$lang = 'zh';
+$site = site_config($lang);
+$pageTitle = $site['brand'] . ' | 联系我们';
+$pageDescription = '通过WhatsApp快速咨询报价与定制方案。';
+$assetVersion = (string) time();
+$navItems = $site['nav'];
+$langSwitchUrl = '/contact.php';
+
+$whatsAppLink = 'https://wa.me/' . $site['whatsapp_number'] . '?text=' . urlencode($site['whatsapp_message']);
+?>
+<?php require __DIR__ . '/../includes/header.php'; ?>
+
+<main>
+  <section class="page-hero">
+    <div class="container">
+      <div class="hero-panel">
+        <h1 class="display-6 fw-semibold">联系销售工程师</h1>
+        <p class="text-muted">通过WhatsApp快速获取报价、目录与技术支持。</p>
+      </div>
+    </div>
+  </section>
+
+  <section class="section-block pt-0">
+    <div class="container">
+      <div class="row g-4">
+        <div class="col-lg-6">
+          <div class="detail-card h-100">
+            <h2 class="h5">WhatsApp直连</h2>
+            <p class="text-muted">马来西亚WhatsApp号码，支持中英文沟通。</p>
+            <a class="btn btn-primary" href="<?= htmlspecialchars($whatsAppLink) ?>" target="_blank" rel="noopener">
+              <i class="bi bi-whatsapp me-2"></i>WhatsApp联系
+            </a>
+            <div class="mt-3 small text-muted">号码：<?= htmlspecialchars($site['whatsapp_number']) ?></div>
+          </div>
+        </div>
+        <div class="col-lg-6">
+          <div class="detail-card h-100">
+            <h2 class="h5">咨询信息准备</h2>
+            <ul class="small">
+              <li>项目地点与使用环境</li>
+              <li>功率/光通量要求</li>
+              <li>认证需求（CE/CB/SASO）</li>
+              <li>交付周期预期</li>
+            </ul>
+            <div class="alert alert-light mt-3" role="alert">
+              测试提示：请在 <code>includes/data.php</code> 中将 <strong>60XXXXXXXXX</strong> 替换为真实号码。
+            </div>
+          </div>
+        </div>
+      </div>
+    </div>
+  </section>
+</main>
+
+<?php require __DIR__ . '/../includes/footer.php'; ?>
diff --git a/zh/index.php b/zh/index.php
new file mode 100644
index 0000000..ad1cd73
--- /dev/null
+++ b/zh/index.php
@@ -0,0 +1,64 @@
+<?php
+declare(strict_types=1);
+@date_default_timezone_set('UTC');
+
+require_once __DIR__ . '/../includes/data.php';
+
+$lang = 'zh';
+$site = site_config($lang);
+$pageTitle = $site['brand'] . ' | 美白护肤研发';
+$pageDescription = '领先的美白护肤品研发与OEM代工解决方案。';
+$assetVersion = (string) time();
+$navItems = $site['nav'];
+$langSwitchUrl = '/index.php';
+
+$products = get_products($lang);
+?>
+<?php require __DIR__ . '/../includes/header.php'; ?>
+
+<main>
+  <!-- Hero Section -->
+  <section class="hero-section bg-light py-5">
+    <div class="container">
+      <div id="heroCarousel" class="carousel slide" data-bs-ride="carousel">
+        <div class="carousel-inner">
+          <div class="carousel-item active">
+            <div class="row align-items-center">
+              <div class="col-lg-6">
+                <h1 class="display-4 fw-bold">先进美白科技，重塑肌肤之美</h1>
+                <p class="lead">从尖端护肤研究到成品落地，我们助力美妆品牌创造传奇。</p>
+                <a class="btn btn-primary btn-lg" href="/zh/products.php">查看护肤产品</a>
+              </div>
+              <div class="col-lg-6">
+                <img src="/assets/images/hero-structure.svg" class="d-block w-100" alt="护肤研发">
+              </div>
+            </div>
+          </div>
+        </div>
+      </div>
+    </div>
+  </section>
+
+  <!-- Products Section -->
+  <section class="section-block py-5">
+    <div class="container">
+      <h2 class="text-center mb-5">美白系列产品</h2>
+      <div class="row g-4">
+        <?php foreach ($products as $product): ?>
+          <div class="col-md-6 col-lg-3">
+            <article class="card h-100">
+              <img src="<?= htmlspecialchars($product['image']) ?>" class="card-img-top" alt="<?= htmlspecialchars($product['name']) ?>">
+              <div class="card-body">
+                <h3 class="h5"><?= htmlspecialchars($product['name']) ?></h3>
+                <p class="text-muted small"><?= htmlspecialchars($product['summary']) ?></p>
+                <a class="btn btn-outline-primary" href="/zh/product.php?id=<?= urlencode((string) $product['id']) ?>">查看详情</a>
+              </div>
+            </article>
+          </div>
+        <?php endforeach; ?>
+      </div>
+    </div>
+  </section>
+</main>
+
+<?php require __DIR__ . '/../includes/footer.php'; ?>
\ No newline at end of file
diff --git a/zh/news.php b/zh/news.php
new file mode 100644
index 0000000..9338caa
--- /dev/null
+++ b/zh/news.php
@@ -0,0 +1,52 @@
+<?php
+declare(strict_types=1);
+@date_default_timezone_set('UTC');
+
+require_once __DIR__ . '/../includes/data.php';
+
+$lang = 'zh';
+$site = site_config($lang);
+$pageTitle = $site['brand'] . ' | 新闻动态';
+$pageDescription = '生产进展、认证更新与交付动态。';
+$assetVersion = (string) time();
+$navItems = $site['nav'];
+$langSwitchUrl = '/news.php';
+
+$newsItems = get_news($lang);
+?>
+<?php require __DIR__ . '/../includes/header.php'; ?>
+
+<main>
+  <section class="page-hero">
+    <div class="container">
+      <div class="hero-panel">
+        <h1 class="display-6 fw-semibold">工厂新闻与项目动态</h1>
+        <p class="text-muted">了解认证进度、交付里程碑与新品发布。</p>
+      </div>
+    </div>
+  </section>
+
+  <section class="section-block pt-0">
+    <div class="container">
+      <div class="row g-4">
+        <?php foreach ($newsItems as $item): ?>
+          <div class="col-lg-4">
+            <article class="card h-100">
+              <div class="card-body">
+                <div class="text-uppercase small text-muted"><?= htmlspecialchars($item['date']) ?></div>
+                <h2 class="h5 mt-2"><?= htmlspecialchars($item['title']) ?></h2>
+                <p class="text-muted small"><?= htmlspecialchars($item['summary']) ?></p>
+                <span class="text-muted small">如需详情请联系WhatsApp。</span>
+              </div>
+            </article>
+          </div>
+        <?php endforeach; ?>
+      </div>
+      <div class="alert alert-light mt-4" role="alert" data-auto-dismiss="true">
+        想了解项目进度？欢迎通过WhatsApp获取实时信息。
+      </div>
+    </div>
+  </section>
+</main>
+
+<?php require __DIR__ . '/../includes/footer.php'; ?>
diff --git a/zh/product.php b/zh/product.php
new file mode 100644
index 0000000..13641d8
--- /dev/null
+++ b/zh/product.php
@@ -0,0 +1,60 @@
+<?php
+declare(strict_types=1);
+@date_default_timezone_set('UTC');
+
+require_once __DIR__ . '/../includes/data.php';
+
+$lang = 'zh';
+$site = site_config($lang);
+$productData = get_products($lang);
+$productId = isset($_GET['id']) ? (int) $_GET['id'] : 0;
+$selected = null;
+
+foreach ($productData as $product) {
+    if ($product['id'] === $productId) {
+        $selected = $product;
+        break;
+    }
+}
+
+$pageTitle = $selected ? $selected['name'] . ' | ' . $site['brand'] : '产品详情 | ' . $site['brand'];
+?>
+<?php require __DIR__ . '/../includes/header.php'; ?>
+
+<main class="container my-5">
+  <?php if (!$selected): ?>
+    <div class="alert alert-warning">未找到产品。</div>
+    <a class="btn btn-primary" href="/zh/products.php">返回产品</a>
+  <?php else: ?>
+    <div class="row">
+      <div class="col-md-6">
+        <!-- Carousel -->
+        <div id="productCarousel" class="carousel slide" data-bs-ride="carousel">
+          <div class="carousel-inner">
+            <?php foreach ($selected['images'] as $index => $img): ?>
+              <div class="carousel-item <?= $index === 0 ? 'active' : '' ?>">
+                <img src="<?= htmlspecialchars($img) ?>" class="d-block w-100" alt="产品图片">
+              </div>
+            <?php endforeach; ?>
+          </div>
+          <button class="carousel-control-prev" type="button" data-bs-target="#productCarousel" data-bs-slide="prev">
+            <span class="carousel-control-prev-icon"></span>
+          </button>
+          <button class="carousel-control-next" type="button" data-bs-target="#productCarousel" data-bs-slide="next">
+            <span class="carousel-control-next-icon"></span>
+          </button>
+        </div>
+      </div>
+      <div class="col-md-6">
+        <h1><?= htmlspecialchars($selected['name']) ?></h1>
+        <p class="lead text-muted"><?= htmlspecialchars($selected['summary']) ?></p>
+        <p><?= htmlspecialchars($selected['details']) ?></p>
+        <a class="btn btn-lg btn-success" href="https://wa.me/<?= $site['whatsapp_number'] ?>?text=<?= urlencode($site['whatsapp_message']) ?>">
+           WhatsApp 咨询
+        </a>
+      </div>
+    </div>
+  <?php endif; ?>
+</main>
+
+<?php require __DIR__ . '/../includes/footer.php'; ?>
\ No newline at end of file
diff --git a/zh/products.php b/zh/products.php
new file mode 100644
index 0000000..1d51f5b
--- /dev/null
+++ b/zh/products.php
@@ -0,0 +1,59 @@
+<?php
+declare(strict_types=1);
+@date_default_timezone_set('UTC');
+
+require_once __DIR__ . '/../includes/data.php';
+
+$lang = 'zh';
+$site = site_config($lang);
+$pageTitle = $site['brand'] . ' | 产品中心';
+$pageDescription = '查看工业照明产品系列与应用场景。';
+$assetVersion = (string) time();
+$navItems = $site['nav'];
+$langSwitchUrl = '/products.php';
+
+$products = get_products($lang);
+?>
+<?php require __DIR__ . '/../includes/header.php'; ?>
+
+<main>
+  <section class="page-hero">
+    <div class="container">
+      <div class="hero-panel">
+        <div class="row align-items-center g-4">
+          <div class="col-lg-7">
+            <h1 class="display-6 fw-semibold">工业照明产品矩阵</h1>
+            <p class="text-muted">按行业场景配置高棚灯、投光灯、三防灯与道路照明解决方案。</p>
+          </div>
+          <div class="col-lg-5 text-lg-end">
+            <span class="badge badge-soft"><?= count($products) ?> 个分类</span>
+          </div>
+        </div>
+      </div>
+    </div>
+  </section>
+
+  <section class="section-block pt-0">
+    <div class="container">
+      <div class="row g-4">
+        <?php foreach ($products as $product): ?>
+          <div class="col-md-6 col-lg-4">
+            <article class="card h-100 product-card">
+              <div class="card-body">
+                <img class="product-icon" src="<?= htmlspecialchars($product['image']) ?>" alt="<?= htmlspecialchars($product['name']) ?>" width="64" height="64" />
+                <h2 class="h5"><?= htmlspecialchars($product['name']) ?></h2>
+                <p class="text-muted small"><?= htmlspecialchars($product['summary']) ?></p>
+                <div class="d-flex gap-2 mt-3">
+                  <a class="btn btn-sm btn-primary" href="/zh/product.php?id=<?= urlencode((string) $product['id']) ?>">查看详情</a>
+                  <a class="btn btn-sm btn-outline-secondary" href="/zh/contact.php">索取报价</a>
+                </div>
+              </div>
+            </article>
+          </div>
+        <?php endforeach; ?>
+      </div>
+    </div>
+  </section>
+</main>
+
+<?php require __DIR__ . '/../includes/footer.php'; ?>