diff --git a/src/layouts/BlogLayout.astro b/src/layouts/BlogLayout.astro
index 504c5db..6ca4c0f 100644
--- a/src/layouts/BlogLayout.astro
+++ b/src/layouts/BlogLayout.astro
@@ -132,6 +132,33 @@ const authorX = author?.links?.find(l => l.name === 'X')?.id;
       />
     </main>
     <Footer />
+    <div id="copy-toast" class="copy-toast">Link is copied.</div>
+    <script is:inline>
+      document.addEventListener('DOMContentLoaded', () => {
+        document
+          .querySelectorAll(
+            '.blog-body h2[id], .blog-body h3[id], .blog-body h4[id]'
+          )
+          .forEach(h2 => {
+            h2.style.cursor = 'pointer';
+            h2.addEventListener('click', () => {
+              const url = `${location.origin}${location.pathname}#${h2.id}`;
+              navigator.clipboard.writeText(url);
+              const toast = document.getElementById('copy-toast');
+              if (toast) {
+                toast.style.display = 'block';
+                toast.style.opacity = '1';
+                setTimeout(() => {
+                  toast.style.opacity = '0';
+                  setTimeout(() => {
+                    toast.style.display = 'none';
+                  }, 300);
+                }, 1000);
+              }
+            });
+          });
+      });
+    </script>
     <style is:global lang="scss">
       $space: 2rem;
       $space-sp: 1.6rem;
@@ -352,6 +379,24 @@ const authorX = author?.links?.find(l => l.name === 'X')?.id;
       .remark-link-card-plus__image {
         @apply my-0 h-full w-full object-cover;
       }
+      .copy-toast {
+        display: none;
+        position: fixed;
+        right: 50%;
+        bottom: 2rem;
+        transform: translateX(50%);
+        z-index: 99999;
+        min-width: 120px;
+        padding: 0.75rem 1.25rem;
+        background: rgba(30, 41, 59, 0.95);
+        color: #fff;
+        border-radius: 0.5rem;
+        font-size: 0.95rem;
+        box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
+        text-align: center;
+        pointer-events: none;
+        transition: opacity 0.3s;
+      }
     </style>
   </body>
 </html>