diff --git a/2000s/certs/index.html b/2000s/certs/index.html
index d9a6f28..15a6dea 100644
--- a/2000s/certs/index.html
+++ b/2000s/certs/index.html
@@ -89,7 +89,7 @@
         <p>© 2026 BI Intelligent Query Interface</p>
     </footer>
 
-    <script src="../js/certs-index.js"></script>
+    <script src="../js/certs-index.js?v=20260617"></script>
     <script src="https://cdn.jsdmirror.cn/gh/bishshi/wechat-detect@main/wechat-detect.js"></script>
     <script src="../js/notice-banner.js"></script>
 </body>
diff --git a/2000s/js/certs-index.js b/2000s/js/certs-index.js
index ce51650..f8eef54 100644
--- a/2000s/js/certs-index.js
+++ b/2000s/js/certs-index.js
@@ -60,8 +60,8 @@ const SUPABASE_URL = 'https://chixssrphfgxvqqigkzo.supabase.co';
             const end = document.getElementById('dateEnd').value;
             const display = document.getElementById('resultsArea');
 
-            if (!term) {
-                alert("请输入证书编号、持有人姓名或奖项名。");
+            if (!term && !start && !end) {
+                alert("请至少输入一个查询条件。");
                 return;
             }
 
@@ -69,7 +69,9 @@ const SUPABASE_URL = 'https://chixssrphfgxvqqigkzo.supabase.co';
 
             try {
                 let query = sbClient.from('certificates').select('*');
-                query = query.or(`cert_number.ilike.%${term}%,holder_name.ilike.%${term}%,honor_title.ilike.%${term}%`);
+                if (term) {
+                    query = query.or(`cert_number.ilike.%${term}%,holder_name.ilike.%${term}%,honor_title.ilike.%${term}%`);
+                }
 
                 if (start) query = query.gte('issue_date', start);
                 if (end) query = query.lte('issue_date', end);
diff --git a/2000s/js/ticket-index.js b/2000s/js/ticket-index.js
index 8488d38..fde5d83 100644
--- a/2000s/js/ticket-index.js
+++ b/2000s/js/ticket-index.js
@@ -40,6 +40,11 @@ const SUPABASE_URL = 'https://chixssrphfgxvqqigkzo.supabase.co';
             const dateTo = document.getElementById('dateTo').value;
             const resultsDiv = document.getElementById('searchResults');
 
+            if (!searchTerm && !dateFrom && !dateTo) {
+                alert("请至少输入一个查询条件。");
+                return;
+            }
+
             resultsDiv.innerHTML = '<div class="loading-state">正在连接单据数据库并执行检索...</div>';
 
             try {
diff --git a/2000s/js/xinhan-index.js b/2000s/js/xinhan-index.js
index 9221cf8..09dcea3 100644
--- a/2000s/js/xinhan-index.js
+++ b/2000s/js/xinhan-index.js
@@ -21,6 +21,11 @@ const SUPABASE_URL = 'https://chixssrphfgxvqqigkzo.supabase.co';
             const to = document.getElementById('dateTo').value;
             const out = document.getElementById('searchResults');
 
+            if (!selfNumberTerm && !trackingNumberTerm && !recipientTerm && !contentTerm && !from && !to) {
+                alert("请至少输入一个查询条件。");
+                return;
+            }
+
             out.innerHTML = '<div class="loading-state">正在连接信函数据库并执行检索...</div>';
 
             let q = sb.from('xinhan').select('*');
@@ -97,7 +102,7 @@ const SUPABASE_URL = 'https://chixssrphfgxvqqigkzo.supabase.co';
                 params.get('self_number') ||
                 params.get('selfNumber');
 
-            if (!selfNumber) return;
+            if (!selfNumber || !selfNumber.trim()) return;
 
             document.getElementById('selfNumberTerm').value = selfNumber.trim();
             handleSearch();
diff --git a/2000s/ticket/index.html b/2000s/ticket/index.html
index a26b2c6..b79ee83 100644
--- a/2000s/ticket/index.html
+++ b/2000s/ticket/index.html
@@ -90,7 +90,7 @@
         <p>© 2026 BI Intelligent Query Interface</p>
     </footer>
 
-    <script src="../js/ticket-index.js"></script>
+    <script src="../js/ticket-index.js?v=20260617"></script>
     <script src="../js/notice-banner.js"></script>
 </body>
 </html>
diff --git a/certs/index.html b/certs/index.html
index c367747..028b0de 100644
--- a/certs/index.html
+++ b/certs/index.html
@@ -89,7 +89,7 @@
         <p>© 2026 BI Intelligent Query Interface</p>
     </footer>
 
-    <script defer src="../js/certs-index.js?v=20260614"></script>
+    <script defer src="../js/certs-index.js?v=20260617"></script>
     <script defer src="https://cdn.jsdmirror.cn/gh/bishshi/wechat-detect@main/wechat-detect.js"></script>
     <script defer src="../js/notice-banner.js?v=20260614"></script>
 </body>
diff --git a/js/certs-index.js b/js/certs-index.js
index fbb167b..92aa3c0 100644
--- a/js/certs-index.js
+++ b/js/certs-index.js
@@ -66,8 +66,8 @@ const SUPABASE_URL = 'https://chixssrphfgxvqqigkzo.supabase.co';
             const end = document.getElementById('dateEnd').value;
             const display = document.getElementById('resultsArea');
 
-            if (!term) {
-                alert("请输入证书编号、持有人姓名或奖项名。");
+            if (!term && !start && !end) {
+                alert("请至少输入一个查询条件。");
                 return;
             }
 
@@ -75,7 +75,9 @@ const SUPABASE_URL = 'https://chixssrphfgxvqqigkzo.supabase.co';
 
             try {
                 let query = sbClient.from('certificates').select('*');
-                query = query.or(`cert_number.ilike.%${term}%,holder_name.ilike.%${term}%,honor_title.ilike.%${term}%`);
+                if (term) {
+                    query = query.or(`cert_number.ilike.%${term}%,holder_name.ilike.%${term}%,honor_title.ilike.%${term}%`);
+                }
 
                 if (start) query = query.gte('issue_date', start);
                 if (end) query = query.lte('issue_date', end);
diff --git a/js/ticket-index.js b/js/ticket-index.js
index 4a9f6a3..6530fc7 100644
--- a/js/ticket-index.js
+++ b/js/ticket-index.js
@@ -59,6 +59,11 @@ const SUPABASE_URL = 'https://chixssrphfgxvqqigkzo.supabase.co';
             const dateTo = document.getElementById('dateTo').value;
             const resultsDiv = document.getElementById('searchResults');
 
+            if (!searchTerm && !dateFrom && !dateTo) {
+                alert("请至少输入一个查询条件。");
+                return;
+            }
+
             resultsDiv.innerHTML = '<div class="loading-state">正在连接单据数据库并执行检索...</div>';
 
             try {
diff --git a/js/xinhan-index.js b/js/xinhan-index.js
index 9221cf8..09dcea3 100644
--- a/js/xinhan-index.js
+++ b/js/xinhan-index.js
@@ -21,6 +21,11 @@ const SUPABASE_URL = 'https://chixssrphfgxvqqigkzo.supabase.co';
             const to = document.getElementById('dateTo').value;
             const out = document.getElementById('searchResults');
 
+            if (!selfNumberTerm && !trackingNumberTerm && !recipientTerm && !contentTerm && !from && !to) {
+                alert("请至少输入一个查询条件。");
+                return;
+            }
+
             out.innerHTML = '<div class="loading-state">正在连接信函数据库并执行检索...</div>';
 
             let q = sb.from('xinhan').select('*');
@@ -97,7 +102,7 @@ const SUPABASE_URL = 'https://chixssrphfgxvqqigkzo.supabase.co';
                 params.get('self_number') ||
                 params.get('selfNumber');
 
-            if (!selfNumber) return;
+            if (!selfNumber || !selfNumber.trim()) return;
 
             document.getElementById('selfNumberTerm').value = selfNumber.trim();
             handleSearch();
diff --git a/ticket/index.html b/ticket/index.html
index 6c09240..43020c7 100644
--- a/ticket/index.html
+++ b/ticket/index.html
@@ -90,7 +90,7 @@
         <p>© 2026 BI Intelligent Query Interface</p>
     </footer>
 
-    <script defer src="../js/ticket-index.js?v=20260614"></script>
+    <script defer src="../js/ticket-index.js?v=20260617"></script>
     <script defer src="../js/notice-banner.js?v=20260614"></script>
 </body>
 </html>