diff --git a/public/index.html b/public/index.html
index 4a5c383..94e704f 100644
--- a/public/index.html
+++ b/public/index.html
@@ -370,8 +370,7 @@
       <div class="modal" style="max-width: 800px; width: 95%;">
         <div class="modal-header">
           <div style="display: flex; flex-direction: column;">
-            <h2 id="serverDetailTitle" style="margin-bottom: 4px;">服务器详情</h2>
-            <div id="serverDetailSubtitle" style="font-size: 0.85rem; color: var(--text-secondary); font-family: var(--font-mono);"></div>
+            <h2 id="serverDetailTitle" style="margin-bottom: 0;">服务器详情</h2>
           </div>
           <button class="modal-close" id="serverDetailClose">&times;</button>
         </div>
diff --git a/public/js/app.js b/public/js/app.js
index a2aebd6..88d7d74 100644
--- a/public/js/app.js
+++ b/public/js/app.js
@@ -65,7 +65,6 @@
     serverDetailModal: document.getElementById('serverDetailModal'),
     serverDetailClose: document.getElementById('serverDetailClose'),
     serverDetailTitle: document.getElementById('serverDetailTitle'),
-    serverDetailSubtitle: document.getElementById('serverDetailSubtitle'),
     detailMetricsList: document.getElementById('detailMetricsList'),
     detailLoading: document.getElementById('detailLoading'),
     detailCpuCores: document.getElementById('detailCpuCores'),
@@ -429,7 +428,6 @@
   async function openServerDetail(instance, job, source) {
     currentServerDetail = { instance, job, source, charts: {} };
     dom.serverDetailTitle.textContent = `${job}`;
-    dom.serverDetailSubtitle.textContent = `${instance} (${source})`;
     dom.serverDetailModal.classList.add('active');
 
     // Show loading