diff --git a/.astro/content.d.ts b/.astro/content.d.ts
index 96b2fc3..c0082cc 100644
--- a/.astro/content.d.ts
+++ b/.astro/content.d.ts
@@ -194,6 +194,6 @@ declare module 'astro:content' {
 		LiveContentConfig['collections'][C]['loader']
 	>;
 
-	export type ContentConfig = typeof import("./../src/content.config.mjs");
+	export type ContentConfig = typeof import("../src/content.config.mjs");
 	export type LiveContentConfig = never;
 }
diff --git a/.astro/settings.json b/.astro/settings.json
index 1151f3b..c267df2 100644
--- a/.astro/settings.json
+++ b/.astro/settings.json
@@ -1,5 +1,5 @@
 {
 	"_variables": {
-		"lastUpdateCheck": 1774419633747
+		"lastUpdateCheck": 1776058818761
 	}
 }
\ No newline at end of file
diff --git a/src/layouts/Layout.astro b/src/layouts/Layout.astro
index 320eaee..e8137b2 100644
--- a/src/layouts/Layout.astro
+++ b/src/layouts/Layout.astro
@@ -4,24 +4,54 @@ import 'font-awesome/css/font-awesome.min.css';
 
 const { title = "浙江贝凡网络科技", activeNav = "home" } = Astro.props;
 
-const navItems = [
+interface NavChild {
+	id: string;
+	label: string;
+	href: string;
+	icon: string;
+}
+
+interface NavItem {
+	id: string;
+	label: string;
+	href: string;
+	icon: string;
+	children?: NavChild[];
+}
+
+const navItems: NavItem[] = [
 	{ id: 'home', label: '公司介绍', href: '/', icon: 'fa-building' },
-	{ id: 'qazk', label: '企安智控', href: '/qazk', icon: 'fa-cogs' },
+	{
+		id: 'products', label: '产品中心', href: '/qazk', icon: 'fa-cubes',
+		children: [
+			{ id: 'qazk', label: '企安智控', href: '/qazk', icon: 'fa-cogs' },
+			{ id: 'elderly', label: '智慧养老', href: '/elderly', icon: 'fa-heartbeat' },
+			{ id: 'construction', label: '智慧工地', href: '/construction', icon: 'fa-industry' },
+			{ id: 'kitchen', label: '明厨亮灶', href: '/kitchen', icon: 'fa-cutlery' },
+			{ id: 'education', label: '学校教育', href: '/education', icon: 'fa-graduation-cap' },
+		]
+	},
 	{ id: 'customization', label: '本地化定制', href: '/customization', icon: 'fa-wrench' },
 	{ id: 'partnership', label: '生态合作', href: '/partnership', icon: 'fa-handshake-o' },
 ];
 
-function getNavLinkClass(itemId: string) {
+function isActive(item: NavItem): boolean {
+	if (item.id === activeNav) return true;
+	if (item.children) return item.children.some(child => child.id === activeNav);
+	return false;
+}
+
+function getNavLinkClass(item: NavItem) {
 	const baseClass = 'flex items-center gap-2 px-4 py-2.5 rounded-full font-medium transition-all duration-300';
-	if (itemId === activeNav) {
+	if (isActive(item)) {
 		return `${baseClass} bg-primary text-white shadow-md`;
 	}
 	return `${baseClass} text-gray-600 hover:text-primary hover:bg-primary/10`;
 }
 
-function getMobileNavLinkClass(itemId: string) {
+function getMobileNavLinkClass(item: NavItem) {
 	const baseClass = 'flex flex-col items-center justify-center py-2 px-2 min-w-[4.5rem] rounded-xl transition-all duration-300';
-	if (itemId === activeNav) {
+	if (isActive(item)) {
 		return `${baseClass} bg-primary text-white`;
 	}
 	return `${baseClass} text-gray-600 hover:bg-primary/10`;
@@ -41,10 +71,35 @@ function getMobileNavLinkClass(itemId: string) {
 		<a href="/" class="flex items-center space-x-3">
 			<img src="/img/logo.png" alt="浙江贝凡 Logo" class="h-8 w-auto"> 
 		</a>
-		<nav class="hidden lg:flex items-center gap-3"> 
+		<nav class="hidden lg:flex items-center gap-3">
 			{
-				navItems.map(item => (
-					<a href={item.href} class={getNavLinkClass(item.id)}>
+				navItems.map(item => item.children ? (
+					<div class="relative" data-dropdown>
+						<button type="button" class={`${getNavLinkClass(item)} cursor-pointer`}
+						   aria-haspopup="true" aria-expanded="false" data-dropdown-trigger>
+							<i class={`fa ${item.icon}`}></i>
+							<span>{item.label}</span>
+							<i class="fa fa-angle-down text-xs ml-0.5 transition-transform duration-200" data-dropdown-chevron></i>
+						</button>
+						<div class="absolute top-full left-1/2 -translate-x-1/2 pt-2 opacity-0 invisible transition-all duration-200 z-50"
+							 data-dropdown-panel role="menu">
+							<div class="bg-white rounded-xl shadow-xl border border-gray-100 py-2 min-w-[200px]">
+								{item.children.map(child => (
+									<a href={child.href} role="menuitem"
+									   class={`flex items-center gap-3 px-4 py-2.5 transition-colors ${
+										 child.id === activeNav
+										   ? 'bg-primary/10 text-primary font-medium'
+										   : 'text-gray-700 hover:bg-primary/10 hover:text-primary'
+									   }`}>
+										<i class={`fa ${child.icon} w-5 text-center`}></i>
+										<span>{child.label}</span>
+									</a>
+								))}
+							</div>
+						</div>
+					</div>
+				) : (
+					<a href={item.href} class={getNavLinkClass(item)}>
 						<i class={`fa ${item.icon}`}></i>
 						<span>{item.label}</span>
 					</a>
@@ -70,8 +125,16 @@ function getMobileNavLinkClass(itemId: string) {
 	<div class="flex items-center justify-between px-2 py-2">
 		<div class="flex items-center gap-1 overflow-x-auto no-scrollbar">
 			{
-				navItems.map(item => (
-					<a href={item.href} class={getMobileNavLinkClass(item.id)}>
+				navItems.map(item => item.children ? (
+					<button type="button"
+							class={getMobileNavLinkClass(item)}
+							aria-haspopup="true" aria-expanded="false"
+							data-mobile-dropdown-trigger>
+						<i class={`fa ${item.icon} text-lg mb-1`}></i>
+						<span class="text-xs font-medium whitespace-nowrap">{item.label}</span>
+					</button>
+				) : (
+					<a href={item.href} class={getMobileNavLinkClass(item)}>
 						<i class={`fa ${item.icon} text-lg mb-1`}></i>
 						<span class="text-xs font-medium whitespace-nowrap">{item.label}</span>
 					</a>
@@ -84,6 +147,29 @@ function getMobileNavLinkClass(itemId: string) {
 	</div>
 </div>
 
+<!-- Mobile Product Panel -->
+<div id="mobile-product-panel"
+	 class="lg:hidden fixed left-0 right-0 z-30 bg-white shadow-xl border-b border-gray-200 transform -translate-y-full opacity-0 pointer-events-none transition-all duration-300"
+	 style="top: 108px;" role="menu">
+	<div class="max-w-md mx-auto px-4 py-4 grid grid-cols-3 gap-3">
+		{navItems.find(item => item.children)?.children?.map(child => (
+			<a href={child.href} role="menuitem"
+			   class={`flex flex-col items-center gap-1.5 py-3 px-2 rounded-xl transition-colors ${
+				 child.id === activeNav
+				   ? 'bg-primary/10 text-primary'
+				   : 'hover:bg-primary/10'
+			   }`}>
+				<i class={`fa ${child.icon} text-xl ${child.id === activeNav ? 'text-primary' : 'text-primary'}`}></i>
+				<span class={`text-xs font-medium ${child.id === activeNav ? 'text-primary' : 'text-gray-700'}`}>{child.label}</span>
+			</a>
+		))}
+	</div>
+</div>
+
+<!-- Mobile Product Backdrop -->
+<div id="mobile-product-backdrop"
+	 class="lg:hidden fixed inset-0 z-20 bg-black/20 opacity-0 pointer-events-none transition-opacity duration-300"></div>
+
 <!-- Spacer for mobile to prevent content overlap (header 3.5rem + nav 2.5rem) -->
 <div class="lg:hidden h-[6rem] transition-all duration-300"></div>
 
@@ -148,6 +234,140 @@ function getMobileNavLinkClass(itemId: string) {
 			lastScrollTop = scrollTop;
 		}, { passive: true });
 	})();
+
+	// Desktop dropdown hover + keyboard navigation
+	(function() {
+		var dropdown = document.querySelector('[data-dropdown]');
+		if (!dropdown) return;
+
+		var trigger = dropdown.querySelector('[data-dropdown-trigger]') as HTMLElement;
+		var panel = dropdown.querySelector('[data-dropdown-panel]') as HTMLElement;
+		var chevron = dropdown.querySelector('[data-dropdown-chevron]') as HTMLElement;
+		var menuItems = panel.querySelectorAll('[role="menuitem"]') as NodeListOf<HTMLElement>;
+		var closeTimer: ReturnType<typeof setTimeout> | null = null;
+
+		function openPanel() {
+			if (closeTimer) { clearTimeout(closeTimer); closeTimer = null; }
+			trigger.setAttribute('aria-expanded', 'true');
+			panel.classList.remove('opacity-0', 'invisible');
+			panel.classList.add('opacity-100', 'visible');
+			if (chevron) chevron.style.transform = 'rotate(180deg)';
+		}
+
+		function closePanel() {
+			trigger.setAttribute('aria-expanded', 'false');
+			panel.classList.add('opacity-0', 'invisible');
+			panel.classList.remove('opacity-100', 'visible');
+			if (chevron) chevron.style.transform = '';
+		}
+
+		function schedulClose() {
+			closeTimer = setTimeout(closePanel, 150);
+		}
+
+		// Click: toggle (touch-friendly)
+		trigger.addEventListener('click', function() {
+			if (trigger.getAttribute('aria-expanded') === 'true') {
+				closePanel();
+			} else {
+				openPanel();
+			}
+		});
+
+		// Hover: mouse users
+		trigger.addEventListener('mouseenter', openPanel);
+		trigger.addEventListener('mouseleave', schedulClose);
+		panel.addEventListener('mouseenter', openPanel);
+		panel.addEventListener('mouseleave', schedulClose);
+
+		// Keyboard
+		trigger.addEventListener('keydown', function(e: KeyboardEvent) {
+			if (e.key === 'ArrowDown') {
+				e.preventDefault();
+				openPanel();
+				menuItems[0]?.focus();
+			}
+			if (e.key === 'Escape') {
+				closePanel();
+				trigger.focus();
+			}
+		});
+
+		panel.addEventListener('keydown', function(e: KeyboardEvent) {
+			var items = Array.from(menuItems);
+			var idx = items.indexOf(document.activeElement as HTMLElement);
+			if (e.key === 'ArrowDown') {
+				e.preventDefault();
+				items[(idx + 1) % items.length].focus();
+			} else if (e.key === 'ArrowUp') {
+				e.preventDefault();
+				items[(idx - 1 + items.length) % items.length].focus();
+			} else if (e.key === 'Escape') {
+				closePanel();
+				trigger.focus();
+			}
+		});
+
+		document.addEventListener('click', function(e) {
+			if (!(dropdown as HTMLElement).contains(e.target as Node)) {
+				closePanel();
+			}
+		});
+	})();
+
+	// Mobile product dropdown
+	(function() {
+		var trigger = document.querySelector('[data-mobile-dropdown-trigger]') as HTMLElement;
+		var panel = document.getElementById('mobile-product-panel');
+		var backdrop = document.getElementById('mobile-product-backdrop');
+		if (!trigger || !panel) return;
+
+		var isOpen = false;
+
+		function updatePanelPosition() {
+			var navContainer = document.getElementById('mobile-nav-container');
+			if (navContainer && panel) {
+				var rect = navContainer.getBoundingClientRect();
+				panel.style.top = (rect.bottom) + 'px';
+			}
+		}
+
+		function openPanel() {
+			isOpen = true;
+			updatePanelPosition();
+			trigger.setAttribute('aria-expanded', 'true');
+			panel!.classList.remove('-translate-y-full', 'opacity-0', 'pointer-events-none');
+			panel!.classList.add('translate-y-0', 'opacity-100', 'pointer-events-auto');
+			if (backdrop) {
+				backdrop.classList.remove('opacity-0', 'pointer-events-none');
+				backdrop.classList.add('opacity-100', 'pointer-events-auto');
+			}
+		}
+
+		function closePanel() {
+			isOpen = false;
+			trigger.setAttribute('aria-expanded', 'false');
+			panel!.classList.add('-translate-y-full', 'opacity-0', 'pointer-events-none');
+			panel!.classList.remove('translate-y-0', 'opacity-100', 'pointer-events-auto');
+			if (backdrop) {
+				backdrop.classList.add('opacity-0', 'pointer-events-none');
+				backdrop.classList.remove('opacity-100', 'pointer-events-auto');
+			}
+		}
+
+		trigger.addEventListener('click', function(e) {
+			e.preventDefault();
+			isOpen ? closePanel() : openPanel();
+		});
+
+		if (backdrop) {
+			backdrop.addEventListener('click', closePanel);
+		}
+
+		window.addEventListener('scroll', function() {
+			if (isOpen && window.innerWidth < 1024) closePanel();
+		}, { passive: true });
+	})();
 </script>
 
 <style>