diff --git a/contact.html b/contact.html
index 44ac15c..c437d36 100644
--- a/contact.html
+++ b/contact.html
@@ -169,8 +169,7 @@
     <h1>お問い合わせ</h1>
     <p class="subtitle">通常 1〜2 営業日以内にご返信します</p>
 
-    <!-- Formspree: https://formspree.io でフォームを作成し、YOUR_FORM_ID を置き換えてください -->
-    <form id="contact-form" action="https://formspree.io/f/YOUR_FORM_ID" method="POST">
+    <form id="contact-form">
 
         <div class="field">
             <label for="type" class="required">お問い合わせ種別</label>
@@ -205,9 +204,6 @@
             <textarea id="message" name="message" required placeholder="詳しい状況をお書きください"></textarea>
         </div>
 
-        <!-- Formspree スパム対策（ハニーポット） -->
-        <input type="text" name="_gotcha" style="display:none">
-
         <button type="submit" class="submit-btn" id="submit-btn">送信する</button>
     </form>
 
@@ -230,18 +226,27 @@
         btn.disabled = true;
         btn.textContent = '送信中...';
 
+        const data = {
+            type:    document.getElementById('type').value,
+            name:    document.getElementById('name').value,
+            email:   document.getElementById('email').value,
+            subject: document.getElementById('subject').value,
+            message: document.getElementById('message').value,
+        };
+
         try {
-            const res = await fetch(form.action, {
+            const res = await fetch('https://api.soar-enrich.com/api/store/contact', {
                 method: 'POST',
-                body: new FormData(form),
-                headers: { Accept: 'application/json' }
+                headers: { 'Content-Type': 'application/json' },
+                body: JSON.stringify(data),
             });
 
             if (res.ok) {
                 form.style.display = 'none';
                 success.style.display = 'block';
             } else {
-                alert('送信に失敗しました。時間をおいて再度お試しください。');
+                const err = await res.json().catch(() => ({}));
+                alert(err.error || '送信に失敗しました。時間をおいて再度お試しください。');
                 btn.disabled = false;
                 btn.textContent = '送信する';
             }