diff --git a/web/static/js/audit.js b/web/static/js/audit.js
index 44e323f8..a252df1e 100644
--- a/web/static/js/audit.js
+++ b/web/static/js/audit.js
@@ -771,9 +771,16 @@ document.addEventListener('languagechange', function () {
 var auditCustomSelectMap = {};
 var auditFilterSelectsDocListener = false;
 
+function closeAuditCustomSelect(selectId) {
+    var reg = auditCustomSelectMap[selectId];
+    if (reg && reg.wrapper) {
+        reg.wrapper.classList.remove('open');
+    }
+}
+
 function closeAllAuditCustomSelects() {
     Object.keys(auditCustomSelectMap).forEach(function (id) {
-        auditCustomSelectMap[id].wrapper.classList.remove('open');
+        closeAuditCustomSelect(id);
     });
 }
 
@@ -872,13 +879,15 @@ function enhanceAuditFilterSelect(selectId) {
     dropdown.addEventListener('click', function (e) {
         var opt = e.target.closest('.audit-custom-select-option');
         if (!opt) return;
+        e.stopPropagation();
         var val = opt.getAttribute('data-value');
         if (val === null) val = '';
+        closeAuditCustomSelect(selectId);
         if (select.value !== val) {
             select.value = val;
             select.dispatchEvent(new Event('change', { bubbles: true }));
         }
-        wrapper.classList.remove('open');
+        closeAuditCustomSelect(selectId);
         syncAuditCustomSelect(selectId);
     });
 
diff --git a/web/templates/index.html b/web/templates/index.html
index 08eabe0d..996f188e 100644
--- a/web/templates/index.html
+++ b/web/templates/index.html
@@ -3816,7 +3816,7 @@
                                     </div>
                                     <div class="audit-filter-fields">
                                         <div class="audit-filter-row">
-                                        <label class="audit-field audit-field--event">
+                                        <div class="audit-field audit-field--event">
                                             <span data-i18n="settingsAudit.filterEvent">事件类型</span>
                                             <div class="audit-filter-cascade">
                                                 <select id="audit-filter-category" onchange="onAuditCategoryFilterChange()" aria-label="类别">
@@ -3842,7 +3842,7 @@
                                                     <option value="" data-i18n="settingsAudit.filterAllActions">全部操作</option>
                                                 </select>
                                             </div>
-                                        </label>
+                                        </div>
                                         <label class="audit-field audit-field--result">
                                             <span data-i18n="settingsAudit.filterResult">结果</span>
                                             <select id="audit-filter-result">