修正

frontend/journal-view.html

@@ -54,12 +54,25 @@
     </table>
 
     <div style="margin-top: 16px">
-      <button onclick="window.close()">閉じる</button>
-      <button onclick="goBack()">一覧に戻る</button>
+      <button
+        onclick="goBack()"
+        class="back-button"
+        style="
+          padding: 8px 16px;
+          background: #007bff;
+          color: white;
+          border: none;
+          border-radius: 4px;
+          cursor: pointer;
+          font-size: 14px;
+        "
+      >
+        ← 仕訳一覧に戻る
+      </button>
     </div>
 
     <script>
-      const API = "http://127.0.0.1:18080";
+      const API = "";
 
       async function loadJournalEntry() {
         const params = new URLSearchParams(window.location.search);