diff --git a/.github/workflows/lhci.yml b/.github/workflows/lhci.yml
index 7db3448c..4938d75c 100644
--- a/.github/workflows/lhci.yml
+++ b/.github/workflows/lhci.yml
@@ -5,20 +5,33 @@ on:
 
   # Triggers the workflow when pull request is opened or updated
   pull_request:
-    types: [opened, synchronize, reopened, labeled]
+    types: [opened, synchronize, reopened]
+    paths:
+      - 'assets/**'
+      - 'content/**'
+      - 'layouts/**'
+      - 'static/js/**'
+      - '.github/workflows/lhci.yml'
+      - '.lighthouserc.json'
+      - 'hugo.toml'
+
+# Cancel an in-progress run for the same PR/branch when a new commit arrives
+concurrency:
+  group: lighthouse-${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
+  cancel-in-progress: true
 
 jobs:
   lighthouseci:
-    # Run this job if labeled with 'ci-lighthouse'
-    if: ${{ github.event.label.name == 'ci-lighthouse' }}
     runs-on: ubuntu-latest
     steps:
       #ref: https://github.com/actions/starter-workflows/tree/main/pages
       - name: Checkout
         uses: actions/checkout@v4
         with:
-          ref: ${{ github.event.pull_request.head.ref }}
-          repository: ${{ github.event.pull_request.head.repo.full_name }}
+          # Fall back to the triggering ref/repo when not run from a pull request
+          # (e.g. manual workflow_dispatch), where github.event.pull_request is empty
+          ref: ${{ github.event.pull_request.head.ref || github.ref }}
+          repository: ${{ github.event.pull_request.head.repo.full_name || github.repository }}
       - name: Setup Hugo
         uses: peaceiris/actions-hugo@v2
         with:
@@ -32,7 +45,7 @@ jobs:
       - uses: actions/setup-node@v4
         with:
           node-version: 20
-      - run: npm install -g @lhci/cli@0.11.x
+      - run: npm install -g @lhci/cli@0.15.x
       # Collect Lighthouse results
       - run: lhci autorun
         env:
diff --git a/.lighthouserc.json b/.lighthouserc.json
index ef7ae85e..701557b8 100644
--- a/.lighthouserc.json
+++ b/.lighthouserc.json
@@ -2,48 +2,28 @@
   "ci": {
     "collect": {
       "numberOfRuns": 1,
-      "startServerCommand": "hugo server --environment production",
-      "url": [
-        "http://localhost:1313/",
-        "http://localhost:1313/accessibility-statement/",
-        "http://localhost:1313/contact/",
-        "http://localhost:1313/components/",
-        "http://localhost:1313/components/landmark/",
-        "http://localhost:1313/components/checkable/",
-        "http://localhost:1313/components/button-and-link/",
-        "http://localhost:1313/components/digital-info/",
-        "http://localhost:1313/components/form/",
-        "http://localhost:1313/components/official-document/",
-        "http://localhost:1313/components/skip-to/",
-        "http://localhost:1313/components/table/",
-        "http://localhost:1313/components/textarea/",
-        "http://localhost:1313/components/warning-text/",
-        "http://localhost:1313/components/accordion/",
-        "http://localhost:1313/components/tabs/",
-        "http://localhost:1313/technology/",
-        "http://localhost:1313/technology/anti_patterns/",
-        "http://localhost:1313/technology/internationalization/",
-        "http://localhost:1313/technology/progressive_enhancement/",
-        "http://localhost:1313/visual/",
-        "http://localhost:1313/visual/colors/",
-        "http://localhost:1313/visual/internationalization/",
-        "http://localhost:1313/visual/typography/"
+      "staticDistDir": "./public",
+      "maxAutodiscoverUrls": 0,
+      "staticDirFileDiscoveryDepth": 4,
+      "autodiscoverUrlBlocklist": [
+        "http://localhost/categories/index.html",
+        "http://localhost/tags/index.html",
+        "http://localhost/components/landmark/blank.html",
+        "http://localhost/components/landmark/one-column.html",
+        "http://localhost/components/skip-to/skip-to.html",
+        "http://localhost/components/skip-to/skip-to-multiple.html",
+        "http://localhost/components/digital-info/digital-info.html"
       ],
       "settings": {
         "preset": "desktop"
       }
     },
     "assert": {
-      "preset": "lighthouse:no-pwa",
       "assertions": {
         "categories:performance": ["warn", { "minScore": 0.9 }],
         "categories:accessibility": ["error", { "minScore": 1 }],
-        "csp-xss": "warn",
-        "is-crawlable": "warn",
-        "meta-description": "warn",
-        "unminified-css": "warn",
-        "unused-css-rules": "warn",
-        "uses-text-compression": "warn"
+        "categories:best-practices": ["warn"],
+        "categories:seo": ["warn"]
       }
     },
     "upload": {
diff --git a/layouts/home.html b/layouts/home.html
index 0830bc02..e98bd1c7 100644
--- a/layouts/home.html
+++ b/layouts/home.html
@@ -28,7 +28,7 @@ <h2 class="heading5 tc mt5">設計制度內容</h2>
   <div class="ph2 tc w-100" style="flex: 1 1 calc(33.333% - 2rem)">
     <a class="db" {{ with $doc }}href="{{ .RelPermalink }}" {{ end }}>
       <div class="w-70 center">
-        <img src="{{ $svgPath | relURL }}" alt="{{ .Title }}" />
+        <img src="{{ $svgPath | relURL }}" alt="" />
       </div>
       <div class="mt3">{{ .Title }}</div>
     </a>