diff --git a/_config.yml b/_config.yml
index 4f8e6b84..ee58b7a4 100644
--- a/_config.yml
+++ b/_config.yml
@@ -17,6 +17,7 @@ map: https://maps.app.goo.gl/4jicdzYEBzjtHd916
 twitter:  DojoConJapan
 facebook: DojoConJapan
 email:    dojocon2025@coderdojo.jp
+youtube: UCX3tz875ZDtU85rFkYuwl5w
 court:    
 contact:      https://forms.gle/7wSMSLEmjc4ucVoHA
 registration: https://dojocon-japan.doorkeeper.jp/events/176163
diff --git a/_includes/footer.html b/_includes/footer.html
index 0ae7e101..f97e5eb8 100644
--- a/_includes/footer.html
+++ b/_includes/footer.html
@@ -1,19 +1,26 @@
-<footer>
-  <nav class="share">
-    <div>
-    <a href="https://www.facebook.com/share.php?u={{ site.url }}" target="_blank" class="share-facebook text-white" rel="noopener"><i class="fa-brands fa-square-facebook"></i> Facebook でシェア</a>
-    </div>
-    <div>
-      <a href="https://x.com/share?url={{ site.url }}{{ page.url }}&text={{ site.title | url_encode }} - {{ page.title | url_encode }}&hashtags=DojoConJapan,CoderDojo&via={{ site.twitter }}&related={{ site.twitter }}" target="_blank" class="share-x text-white" rel="noopener"><i class="fa-brands fa-square-x-twitter"></i> X でシェア</a>
-    </div>
+<footer class="site-footer">
+  <div class="footer-logo">
+    <img src="/img/2025/top/footer_logo.png" alt="DojoCon Japan 2025 Inspire Next." />
+  </div>
+  <div class="footer-social">
+    <a href="https://twitter.com/{{ site.twitter }}" target="_blank" rel="noopener" class="social-x" aria-label="X">
+      <i class="fa-brands fa-x-twitter" style="color:#000000;"></i>
+    </a>
+    <a href="https://www.facebook.com/{{ site.facebook }}" target="_blank" rel="noopener" class="social-facebook" aria-label="Facebook">
+      <i class="fa-brands fa-facebook" style="color:#3b5998;"></i>
+    </a>
+    <a href="https://www.youtube.com/channel/{{ site.youtube }}" target="_blank" rel="noopener" class="social-youtube" aria-label="YouTube">
+      <i class="fa-brands fa-youtube" style="color:#ff0000;"></i>
+    </a>
+  </div>
+  <nav class="footer-links">
+    <a href="/">ホーム</a>
+    <a href="/code-of-conduct">行動規範</a>
+    <a href="/sitemap">サイトマップ</a>
+    <a href="/privacy">プライバシーポリシー</a>
+    <a href="{{site.contact}}" target="_blank">お問い合わせ</a>
   </nav>
-  <nav class="footer-menu text-center">
-    <ul class="footer-menu-list">
-      <li><a href="/code-of-conduct">行動規範</a></li>
-      <li><a href="/privacy">プライバシー・ポリシー</a></li>
-      <li><a href="https://www.facebook.com/{{ site.facebook }}" target="_blank" rel="noopener">Facebook</a></li>
-      <li><a href="https://twitter.com/{{ site.twitter }}" target="_blank" rel="noopener">Twitter</a></li>
-    </ul>
-  </nav>
-  <p class="copyright text-center">&copy; DojoCon Japan {{ site.year }} 実行委員会</p>
-</footer>
+  <div class="footer-copyright">
+    &copy; DojoCon Japan 2025 実行委員会
+  </div>
+</footer>
\ No newline at end of file
diff --git a/_sass/global/variables.scss b/_sass/global/variables.scss
index f29652a6..562df1fd 100644
--- a/_sass/global/variables.scss
+++ b/_sass/global/variables.scss
@@ -15,6 +15,7 @@ $secondary-color: $purple;
 $third-color: $blue;
 $text-color: $black;
 $color-necessary: #ffe6cc;
+$hover-color: $yellow;
 
 // SNS
 $color-facebook: #3b5998;
diff --git a/_sass/includes/footer.scss b/_sass/includes/footer.scss
index 86884cb6..aee8d3ca 100644
--- a/_sass/includes/footer.scss
+++ b/_sass/includes/footer.scss
@@ -1,74 +1,82 @@
 @use '../global/variables' as *;
 
-/* stylesheet for `_includes/footer.html` */
 
-footer {
-  background-color: $secondary-color;
-  color: #fff;
-  padding-bottom: 12px;
-  margin-top: auto;
-  a {
-    color: $white;
+.site-footer {
+  background: #fff;
+  text-align: center;
+  padding: 40px 0 24px;
+
+  .footer-logo img {
+    max-width: 400px;
+    width: 100%;
+    height: auto;
+    margin: 0 auto 24px auto;
+    display: block;
   }
-  .share {
-    display: grid;
-    grid-template-columns: 1fr 1fr;
+
+  .footer-social {
+    margin-bottom: 24px;
+
     a {
-      line-height: 60px;
-      height: 60px;
-      width: 100%;
-      display: block;
-      text-align: center;
-      text-decoration-line: none;
+      display: inline-block;
+      margin: 0 14px;
+      font-size: 2.2rem;
+      color: #000;
+      width: 48px;
+      height: 48px;
+      line-height: 48px;
+      border-radius: 50%;
+      background: #ffffff;
+      transition: background 0.2s, color 0.2s;
+
       &:hover {
-        opacity: .8;
+        background: $hover-color;
+        color: #fff;
       }
     }
-    &::after {
-      content: '';
-      clear: both;
-      display: block;
-    }
-    .share-twitter,
-    .share-facebook,
-    .share-line {
-      display: block;
-    }
-    .share-facebook {
-      background-color: $color-facebook;
-    }
-    .share-x {
-      background-color: $color-x;
-    }
-    .share-line {
-      background-color: $color-line;
-      display: none;
-    }
   }
-  .footer-menu {
-    .footer-menu-list {
-      list-style: none;
-      padding: 0;
-      margin-top: 1.5em;
-      li {
-        display: inline;
-        padding: 0 .5em;
-        a {
-          &:hover {
-            color: white;
-            opacity: 0.8;
-          }
-        }
+
+  .footer-links {
+    margin-bottom: 16px;
+
+    a {
+      display: inline-block;
+      margin: 0 10px;
+      color: #000;
+      text-decoration: none;
+      font-size: 1rem;
+      transition: color 0.2s;
+
+      &:hover {
+        color: $hover-color;
       }
     }
   }
-}
 
-@media screen and (max-width: 800px) {
-  .share a {
-    width: 100%;
-  }
-  .share-line {
-    display: block;
+  .footer-copyright {
+    font-size: 0.98rem;
   }
 }
+
+// レスポンシブ対応
+@media (max-width: 600px) {
+  .site-footer {
+    padding: 32px 0 18px;
+
+    .footer-logo img {
+      max-width: 220px;
+      margin-bottom: 18px;
+    }
+    .footer-social a {
+      margin: 0 8px;
+      font-size: 1.7rem;
+      width: 36px;
+      height: 36px;
+      line-height: 36px;
+    }
+    .footer-links a {
+      margin: 0 5px;
+      font-size: 0.97rem;
+    }
+  }
+}
\ No newline at end of file
diff --git a/img/2025/top/footer_logo.png b/img/2025/top/footer_logo.png
new file mode 100644
index 00000000..e9ea186f
Binary files /dev/null and b/img/2025/top/footer_logo.png differ