diff --git a/web/pages/main.html b/web/pages/main.html
index 63f7f24..d4d010d 100644
--- a/web/pages/main.html
+++ b/web/pages/main.html
@@ -702,7 +702,7 @@
                                             <i class="fa fa-sliders mr-2"></i>评测维度
                                         </button>
                                     </div>
-                                    <div id="headerActionButtons">
+                                    <div id="headerActionButtons" style="min-height: 36px;">
                                         <button onclick="navigateToPage('${config.createConfig.page}')" class="bg-primary text-white px-4 py-2 rounded-lg text-sm hover:bg-primary/90 transition-colors flex items-center">
                                             <i class="fa fa-plus mr-2"></i>${config.createConfig.createText}
                                         </button>
@@ -2500,7 +2500,8 @@
                         </button>
                     `;
                 } else if (tabId === 'leaderboard') {
-                    btnContainer.innerHTML = ''; // 排行榜隐藏按钮
+                    // 排行榜隐藏按钮，但保留占位元素避免高度变化
+                    btnContainer.innerHTML = '<span class="invisible px-4 py-2 rounded-lg">占位</span>';
                 } else if (tabId === 'dimensions') {
                     btnContainer.innerHTML = `
                         <button onclick="addDimension()" class="bg-primary text-white px-4 py-2 rounded-lg text-sm hover:bg-primary/90 transition-colors flex items-center">