diff --git a/LTEMvcApp/Views/Home/Logs.cshtml b/LTEMvcApp/Views/Home/Logs.cshtml
index b6fcc85..54c526e 100644
--- a/LTEMvcApp/Views/Home/Logs.cshtml
+++ b/LTEMvcApp/Views/Home/Logs.cshtml
@@ -310,13 +310,14 @@
         border-radius: 3px;
         max-height: 200px;
         overflow-y: auto;
-        z-index: 1000;
+        z-index: 9999;
         display: none;
         box-shadow: 0 2px 8px rgba(0,0,0,0.1);
+        margin-top: 2px;
     }
 
     .layer-filter-container.open .layer-filter-dropdown {
-        display: block;
+        display: block !important;
     }
 
     .filter-header {
@@ -601,6 +602,8 @@
         function clearLogsDisplay() {
             allLogsData = [];
             availableLayers.clear();
+            // 重新添加标准LTE层
+            ['PHY', 'MAC', 'RLC', 'PDCP', 'RRC', 'NAS'].forEach(layer => availableLayers.add(layer));
             selectedLayers.clear();
             clusterize.clear();
             totalLogsEl.textContent = '0';
@@ -831,7 +834,9 @@
         // 切换下拉框显示状态
         function toggleFilterDropdown() {
             const container = layerFilterTrigger.parentElement;
+            console.log('Toggling dropdown, current state:', container.classList.contains('open'));
             container.classList.toggle('open');
+            console.log('Dropdown state after toggle:', container.classList.contains('open'));
         }
 
         // 关闭下拉框
@@ -842,12 +847,14 @@
 
         // 事件监听器
         layerFilterTrigger.addEventListener('click', function(e) {
+            console.log('Layer filter trigger clicked');
             e.stopPropagation();
             toggleFilterDropdown();
         });
 
         // 全选/取消全选
         selectAllLayers.addEventListener('change', function() {
+            console.log('Select all changed:', this.checked);
             const isChecked = selectAllLayers.checked;
             if (isChecked) {
                 // 全选
@@ -988,6 +995,14 @@
         
         // 初始化Layer过滤器，显示标准LTE层
         updateLayerFilter();
+        
+        // 调试信息
+        console.log('Layer filter elements found:', {
+            trigger: layerFilterTrigger,
+            dropdown: layerFilter,
+            options: layerFilterOptions,
+            selectAll: selectAllLayers
+        });
     });
 </script>
 }