diff --git a/app/not-found.tsx b/app/not-found.tsx
new file mode 100644
index 0000000..f73cab3
--- /dev/null
+++ b/app/not-found.tsx
@@ -0,0 +1,25 @@
+import Link from 'next/link';
+
+export default function NotFound() {
+  return (
+    <div className="flex min-h-[60vh] flex-col items-center justify-center px-4">
+      <div className="max-w-md text-center">
+        <h1 className="type-display mb-2 text-6xl font-bold text-slate-300 dark:text-slate-600">
+          404
+        </h1>
+        <h2 className="mb-4 text-xl font-semibold text-slate-800 dark:text-slate-200">
+          找不到頁面
+        </h2>
+        <p className="mb-8 text-slate-600 dark:text-slate-400">
+          您造訪的連結可能已失效或不存在。
+        </p>
+        <Link
+          href="/"
+          className="inline-flex items-center rounded-lg bg-slate-800 px-6 py-3 text-sm font-medium text-white transition-colors hover:bg-slate-700 focus:outline-none focus:ring-2 focus:ring-slate-500 focus:ring-offset-2 dark:bg-slate-200 dark:text-slate-900 dark:hover:bg-slate-300"
+        >
+          返回首頁
+        </Link>
+      </div>
+    </div>
+  );
+}
diff --git a/app/pages/[slug]/page.tsx b/app/pages/[slug]/page.tsx
index 9b2e7ec..c3eb9df 100644
--- a/app/pages/[slug]/page.tsx
+++ b/app/pages/[slug]/page.tsx
@@ -11,6 +11,7 @@ import { ScrollReveal } from '@/components/scroll-reveal';
 import { SectionDivider } from '@/components/section-divider';
 import { JsonLd } from '@/components/json-ld';
 import { DevEnvDeviceHero } from '@/components/dev-env-device-hero';
+import { HomeLabDeviceHero } from '@/components/homelab-device-hero';
 
 export function generateStaticParams() {
   const params = allPages.map((page) => ({
@@ -76,11 +77,11 @@ export default async function StaticPage({ params }: Props) {
     <>
       <JsonLd data={webPageSchema} />
       <ReadingProgress />
-      <PostLayout hasToc={hasToc} contentKey={slug} wide={slug === 'dev-env'}>
-        <div className={slug === 'dev-env' ? 'space-y-4' : 'space-y-8'}>
+      <PostLayout hasToc={hasToc} contentKey={slug} wide={slug === 'dev-env' || slug === 'homelab'}>
+        <div className={slug === 'dev-env' || slug === 'homelab' ? 'space-y-4' : 'space-y-8'}>
           <SectionDivider>
             <ScrollReveal>
-              <header className={slug === 'dev-env' ? 'mb-4 space-y-3 text-center' : 'mb-6 space-y-4 text-center'}>
+              <header className={slug === 'dev-env' || slug === 'homelab' ? 'mb-4 space-y-3 text-center' : 'mb-6 space-y-4 text-center'}>
                 {page.published_at && (
                   <p className="type-small text-slate-500 dark:text-slate-500">
                     {new Date(page.published_at).toLocaleDateString(
@@ -118,6 +119,8 @@ export default async function StaticPage({ params }: Props) {
               >
                 {slug === 'dev-env' ? (
                   <DevEnvDeviceHero />
+                ) : slug === 'homelab' ? (
+                  <HomeLabDeviceHero />
                 ) : (
                   page.feature_image && (
                     <div className="-mx-4 mb-8 transition-all duration-500 sm:-mx-12 lg:-mx-20 group-[.toc-open]:lg:-mx-4">
diff --git a/components/homelab-device-hero.tsx b/components/homelab-device-hero.tsx
new file mode 100644
index 0000000..ad612ba
--- /dev/null
+++ b/components/homelab-device-hero.tsx
@@ -0,0 +1,78 @@
+'use client';
+
+import { SiTruenas, SiProxmox } from 'react-icons/si';
+import { FiServer } from 'react-icons/fi';
+
+/**
+ * HomeLab 設備展示：Proxmox VE + VyOS、Switch、NAS (TrueNAS)
+ * 使用純 CSS 藝術，取代 HomeLab 頁的 feature_image
+ */
+export function HomeLabDeviceHero() {
+  return (
+    <div
+      className="homelab-device-hero -mx-4 mb-6 flex justify-center py-4 sm:-mx-12 sm:py-6 lg:-mx-20 lg:py-8 group-[.toc-open]:lg:-mx-4"
+      role="img"
+      aria-label="HomeLab 設備：Proxmox VE、VyOS、交換器、NAS (TrueNAS)"
+    >
+      <div className="homelab-device-scene w-full max-w-full">
+        <div className="homelab-rack">
+          {/* Proxmox VE + VyOS Host */}
+          <div className="homelab-router">
+            <div className="homelab-router-body">
+              <div className="homelab-router-leds">
+                <span className="homelab-led homelab-led-power" aria-hidden />
+                <span className="homelab-led homelab-led-wan" aria-hidden />
+                <span className="homelab-led homelab-led-lan" aria-hidden />
+              </div>
+              <div className="homelab-router-logos">
+                <SiProxmox className="homelab-proxmox-logo homelab-logo-svg" aria-label="Proxmox VE" />
+                <FiServer className="homelab-router-icon homelab-logo-svg" aria-label="VyOS Router" />
+              </div>
+            </div>
+          </div>
+
+          {/* 網路線 - 連接 Proxmox 與 Switch */}
+          <div className="homelab-cable" aria-hidden>
+            <span className="homelab-cable-line" />
+          </div>
+
+          {/* Switch */}
+          <div className="homelab-switch">
+            <div className="homelab-switch-body">
+              <div className="homelab-switch-ports">
+                {[1, 2].map((row) => (
+                  <div key={row} className="homelab-port-row">
+                    {Array.from({ length: 8 }).map((_, i) => (
+                      <div key={i} className="homelab-port">
+                        <span className="homelab-port-led homelab-port-led-active" aria-hidden />
+                      </div>
+                    ))}
+                  </div>
+                ))}
+              </div>
+            </div>
+          </div>
+
+          {/* 網路線 - 連接 Switch 與 NAS */}
+          <div className="homelab-cable" aria-hidden>
+            <span className="homelab-cable-line" />
+          </div>
+
+          {/* NAS - TrueNAS */}
+          <div className="homelab-nas">
+            <div className="homelab-nas-body">
+              <div className="homelab-nas-drives">
+                {[1, 2, 3, 4].map((i) => (
+                  <div key={i} className="homelab-drive-slot" aria-hidden />
+                ))}
+              </div>
+              <div className="homelab-nas-logo" aria-label="TrueNAS logo">
+                <SiTruenas className="homelab-truenas-logo" size={28} />
+              </div>
+            </div>
+          </div>
+        </div>
+      </div>
+    </div>
+  );
+}
diff --git a/styles/globals.css b/styles/globals.css
index e34ee1d..eb6785e 100644
--- a/styles/globals.css
+++ b/styles/globals.css
@@ -770,6 +770,504 @@
   color: rgba(255, 255, 255, 0.4);
 }
 
+/* HomeLab device hero - Switch, NAS (TrueNAS), Router (VyOS) */
+@media (prefers-reduced-motion: reduce) {
+  .homelab-device-hero .homelab-device-scene {
+    animation: none;
+  }
+}
+
+.homelab-device-hero {
+  min-height: 280px;
+}
+
+@media (min-width: 1024px) {
+  .homelab-device-hero {
+    min-height: 340px;
+  }
+}
+
+@media (min-width: 1280px) {
+  .homelab-device-hero {
+    min-height: 380px;
+  }
+}
+
+@media (min-width: 1536px) {
+  .homelab-device-hero {
+    min-height: 420px;
+  }
+}
+
+.homelab-device-scene {
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  perspective: 800px;
+  transform-style: preserve-3d;
+  animation: device-float 8s ease-in-out infinite;
+}
+
+.homelab-rack {
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  flex-wrap: nowrap;
+  gap: 12px;
+  width: 100%;
+  min-width: 320px;
+  max-width: 420px;
+  margin: 0 auto;
+  padding: 16px 20px;
+  background: linear-gradient(180deg, #b8b8b8 0%, #9a9a9a 50%, #888888 100%);
+  border-radius: 8px;
+  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.12);
+}
+
+@media (min-width: 640px) {
+  .homelab-rack {
+    max-width: 520px;
+    gap: 16px;
+    padding: 20px 24px;
+  }
+}
+
+@media (min-width: 1024px) {
+  .homelab-rack {
+    max-width: 800px;
+    padding: 24px 32px;
+    gap: 24px;
+  }
+}
+
+@media (min-width: 1280px) {
+  .homelab-rack {
+    max-width: 900px;
+    padding: 28px 40px;
+    gap: 28px;
+  }
+}
+
+@media (min-width: 1536px) {
+  .homelab-rack {
+    max-width: 1000px;
+    padding: 32px 48px;
+    gap: 32px;
+  }
+}
+
+.dark .homelab-rack {
+  background: linear-gradient(180deg, #4a4a4a 0%, #3d3d3d 50%, #2a2a2a 100%);
+  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.4);
+}
+
+/* Cable / 線路 - 虛線連接，垂直置中對齊設備 */
+.homelab-cable {
+  display: flex;
+  align-items: center;
+  align-self: center;
+  flex-shrink: 0;
+  min-width: 20px;
+  width: 20px;
+}
+
+.homelab-cable-line {
+  display: block;
+  width: 100%;
+  height: 0;
+  border-top: 2px dashed #64748b;
+  flex-shrink: 0;
+}
+
+@media (min-width: 640px) {
+  .homelab-cable {
+    min-width: 24px;
+    width: 24px;
+  }
+  .homelab-cable-line {
+    border-top-width: 2px;
+  }
+}
+
+@media (min-width: 1024px) {
+  .homelab-cable {
+    min-width: 48px;
+    width: 48px;
+  }
+  .homelab-cable-line {
+    border-top-width: 2px;
+  }
+}
+
+.dark .homelab-cable-line {
+  border-top-color: #94a3b8;
+}
+
+/* Router */
+.homelab-router {
+  flex-shrink: 0;
+}
+
+.homelab-router-body {
+  width: 64px;
+  height: 40px;
+  padding: 4px 6px;
+  display: flex;
+  flex-direction: column;
+  align-items: center;
+  justify-content: center;
+  gap: 2px;
+  background: linear-gradient(145deg, #3d3d3d 0%, #2a2a2a 100%);
+  border-radius: 6px;
+  border: 1px solid rgba(255, 255, 255, 0.12);
+  box-shadow:
+    0 4px 12px rgba(0, 0, 0, 0.25),
+    inset 0 1px 0 rgba(255, 255, 255, 0.08);
+}
+
+@media (min-width: 640px) {
+  .homelab-router-body {
+    width: 80px;
+    height: 48px;
+    padding: 6px 8px;
+    gap: 4px;
+  }
+}
+
+@media (min-width: 1024px) {
+  .homelab-router-body {
+    width: 104px;
+    height: 64px;
+    padding: 8px 10px;
+    gap: 6px;
+    border-radius: 8px;
+  }
+}
+
+@media (min-width: 1280px) {
+  .homelab-router-body {
+    width: 116px;
+    height: 72px;
+    padding: 10px 12px;
+    gap: 8px;
+  }
+}
+
+.dark .homelab-router-body {
+  background: linear-gradient(145deg, #2a2a2a 0%, #1a1a1a 100%);
+  border-color: rgba(255, 255, 255, 0.1);
+}
+
+.homelab-router-leds {
+  display: flex;
+  gap: 4px;
+}
+
+.homelab-led {
+  width: 4px;
+  height: 4px;
+  border-radius: 50%;
+}
+
+@media (min-width: 1024px) {
+  .homelab-led {
+    width: 5px;
+    height: 5px;
+  }
+}
+
+.homelab-led-power {
+  background: #22c55e;
+  box-shadow: 0 0 4px #22c55e;
+}
+
+.homelab-led-wan {
+  background: #3b82f6;
+  box-shadow: 0 0 4px #3b82f6;
+}
+
+.homelab-led-lan {
+  background: #eab308;
+  box-shadow: 0 0 4px #eab308;
+}
+
+.homelab-router-logos {
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  gap: 6px;
+  flex: 1;
+}
+
+@media (min-width: 1024px) {
+  .homelab-router-logos {
+    gap: 8px;
+  }
+}
+
+.homelab-proxmox-logo {
+  color: #e57008;
+  width: 16px;
+  height: 16px;
+}
+
+@media (min-width: 640px) {
+  .homelab-proxmox-logo {
+    width: 20px;
+    height: 20px;
+  }
+}
+
+@media (min-width: 1024px) {
+  .homelab-proxmox-logo {
+    width: 24px;
+    height: 24px;
+  }
+}
+
+@media (min-width: 1280px) {
+  .homelab-proxmox-logo {
+    width: 28px;
+    height: 28px;
+  }
+}
+
+.dark .homelab-proxmox-logo {
+  color: #f59e0b;
+}
+
+.homelab-router-logos .homelab-logo-svg {
+  flex-shrink: 0;
+}
+
+.homelab-router-icon {
+  width: 16px;
+  height: 16px;
+  color: #64748b;
+}
+
+@media (min-width: 640px) {
+  .homelab-router-icon {
+    width: 20px;
+    height: 20px;
+  }
+}
+
+@media (min-width: 1024px) {
+  .homelab-router-icon {
+    width: 24px;
+    height: 24px;
+  }
+}
+
+@media (min-width: 1280px) {
+  .homelab-router-icon {
+    width: 28px;
+    height: 28px;
+  }
+}
+
+.dark .homelab-router-icon {
+  color: #94a3b8;
+}
+
+/* Switch */
+.homelab-switch {
+  flex-shrink: 0;
+}
+
+.homelab-switch-body {
+  width: 120px;
+  height: 48px;
+  padding: 6px 10px;
+  background: linear-gradient(145deg, #3d3d3d 0%, #2a2a2a 100%);
+  border-radius: 6px;
+  border: 1px solid rgba(255, 255, 255, 0.12);
+  box-shadow:
+    0 4px 12px rgba(0, 0, 0, 0.25),
+    inset 0 1px 0 rgba(255, 255, 255, 0.08);
+}
+
+@media (min-width: 640px) {
+  .homelab-switch-body {
+    width: 160px;
+    height: 60px;
+    padding: 8px 12px;
+  }
+}
+
+@media (min-width: 1024px) {
+  .homelab-switch-body {
+    width: 220px;
+    height: 76px;
+    padding: 10px 14px;
+    border-radius: 8px;
+  }
+}
+
+@media (min-width: 1280px) {
+  .homelab-switch-body {
+    width: 260px;
+    height: 86px;
+    padding: 12px 16px;
+  }
+}
+
+.dark .homelab-switch-body {
+  background: linear-gradient(145deg, #2a2a2a 0%, #1a1a1a 100%);
+  border-color: rgba(255, 255, 255, 0.1);
+}
+
+.homelab-switch-ports {
+  display: flex;
+  flex-direction: column;
+  gap: 4px;
+  height: 100%;
+  justify-content: center;
+}
+
+.homelab-port-row {
+  display: flex;
+  gap: 4px;
+  justify-content: center;
+  flex-wrap: wrap;
+}
+
+.homelab-port {
+  display: flex;
+  flex-direction: column;
+  align-items: center;
+  gap: 1px;
+}
+
+.homelab-port-led {
+  width: 3px;
+  height: 3px;
+  border-radius: 50%;
+  background: #444;
+}
+
+@media (min-width: 640px) {
+  .homelab-port-led {
+    width: 4px;
+    height: 4px;
+  }
+}
+
+@media (min-width: 1024px) {
+  .homelab-port-led {
+    width: 5px;
+    height: 5px;
+  }
+}
+
+.homelab-port-led-active {
+  background: #22c55e;
+  box-shadow: 0 0 3px #22c55e;
+}
+
+.dark .homelab-port-led {
+  background: #555;
+}
+
+.dark .homelab-port-led-active {
+  background: #4ade80;
+  box-shadow: 0 0 3px #4ade80;
+}
+
+/* NAS */
+.homelab-nas {
+  flex-shrink: 0;
+}
+
+.homelab-nas-body {
+  width: 60px;
+  height: 48px;
+  padding: 4px 6px;
+  display: flex;
+  flex-direction: column;
+  align-items: center;
+  justify-content: center;
+  gap: 2px;
+  background: linear-gradient(145deg, #3d3d3d 0%, #2a2a2a 100%);
+  border-radius: 6px;
+  border: 1px solid rgba(255, 255, 255, 0.12);
+  box-shadow:
+    0 4px 12px rgba(0, 0, 0, 0.25),
+    inset 0 1px 0 rgba(255, 255, 255, 0.08);
+}
+
+@media (min-width: 640px) {
+  .homelab-nas-body {
+    width: 88px;
+    height: 64px;
+    padding: 6px 8px;
+    gap: 4px;
+  }
+}
+
+@media (min-width: 1024px) {
+  .homelab-nas-body {
+    width: 108px;
+    height: 76px;
+    padding: 8px 10px;
+    gap: 6px;
+    border-radius: 8px;
+  }
+}
+
+@media (min-width: 1280px) {
+  .homelab-nas-body {
+    width: 120px;
+    height: 86px;
+    padding: 10px 12px;
+    gap: 8px;
+  }
+}
+
+.dark .homelab-nas-body {
+  background: linear-gradient(145deg, #2a2a2a 0%, #1a1a1a 100%);
+  border-color: rgba(255, 255, 255, 0.1);
+}
+
+.homelab-nas-drives {
+  display: flex;
+  gap: 3px;
+}
+
+.homelab-drive-slot {
+  width: 12px;
+  height: 4px;
+  background: rgba(255, 255, 255, 0.12);
+  border-radius: 1px;
+}
+
+@media (min-width: 1024px) {
+  .homelab-drive-slot {
+    width: 14px;
+    height: 5px;
+  }
+}
+
+.dark .homelab-drive-slot {
+  background: rgba(255, 255, 255, 0.08);
+}
+
+.homelab-nas-logo {
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  flex: 1;
+}
+
+.homelab-truenas-logo {
+  color: #0095d5;
+}
+
+.dark .homelab-truenas-logo {
+  color: #38bdf8;
+}
+
 
 @keyframes mastodon-shimmer {
   0% { background-position: -200% 0; }