diff --git a/frontend/app.html b/frontend/app.html
index a17fc28..6e8c273 100644
--- a/frontend/app.html
+++ b/frontend/app.html
@@ -13,101 +13,32 @@
       }
     })();
   </script>
-  <!-- 开发者工具检测 - 必须放在最前面，优先执行 -->
+  <!-- 安全快捷键拦截（避免误判开发者工具） -->
   <script>
     (function() {
       'use strict';
 
-      // 检查调试模式
       const isDebugMode = localStorage.getItem('debugMode') === 'true';
-      if (isDebugMode) return; // 调试模式下跳过检测
+      if (isDebugMode) return;
 
-      let devtoolsOpen = false;
-      let checkCount = 0; // 检测次数计数器
-
-      // 方法1: Console对象toString检测（最可靠）
-      const checkElement = /./;
-      checkElement.toString = function() {
-        devtoolsOpen = true;
-      };
-
-      // 方法2: debugger暂停检测（可能误判，需要多次确认）
-      function detectDebugger() {
-        const start = performance.now();
-        debugger;
-        const end = performance.now();
-        return (end - start) > 100;
-      }
-
-      // 方法3: 窗口尺寸检测（辅助判断）
-      function detectWindowSize() {
-        const widthDiff = window.outerWidth - window.innerWidth;
-        const heightDiff = window.outerHeight - window.innerHeight;
-        // 提高阈值，避免误判
-        return widthDiff > 200 || heightDiff > 200;
-      }
-
-      // 综合检测（需要多个条件同时满足才判定）
-      function checkDevTools() {
-        devtoolsOpen = false;
-        console.log('%c', checkElement);
-        console.clear();
-
-        const consoleOpen = devtoolsOpen;
-        const debuggerPause = detectDebugger();
-        const windowSizeAbnormal = detectWindowSize();
-
-        // 严格判定：console检测为主，其他为辅助
-        // 只有console明确检测到才触发警告
-        return consoleOpen && (debuggerPause || windowSizeAbnormal);
-      }
-
-      // 立即检测（页面加载时）
-      const initialCheck = checkDevTools();
-
-      if (initialCheck) {
-        // 检测到开发者工具，显示警告
-        document.write('<style>body{margin:0;overflow:hidden;}</style>');
-        document.write('<div style="position:fixed;top:0;left:0;width:100%;height:100%;background:linear-gradient(135deg,#667eea 0%,#764ba2 100%);display:flex;align-items:center;justify-content:center;font-family:Arial,sans-serif;z-index:999999;">');
-        document.write('<div style="background:white;padding:60px;border-radius:20px;text-align:center;max-width:500px;box-shadow:0 20px 60px rgba(0,0,0,0.3);">');
-        document.write('<div style="font-size:80px;color:#667eea;margin-bottom:30px;">🛡️</div>');
-        document.write('<h1 style="color:#333;margin-bottom:20px;font-size:32px;">检测到开发者工具</h1>');
-        document.write('<p style="color:#666;font-size:18px;margin-bottom:30px;line-height:1.6;">为保护系统安全，请关闭浏览器开发者工具后访问</p>');
-        document.write('<button onclick="location.reload()" style="background:linear-gradient(135deg,#667eea 0%,#764ba2 100%);color:white;border:none;padding:15px 40px;font-size:16px;border-radius:10px;cursor:pointer;font-weight:600;box-shadow:0 4px 15px rgba(102,126,234,0.4);">🔄 刷新页面</button>');
-        document.write('<p style="color:#999;font-size:14px;margin-top:20px;">如需使用开发者工具，请联系管理员开启调试模式</p>');
-        document.write('</div></div>');
-        document.close();
-        throw new Error('DevTools detected');
-      }
-
-      // 禁用右键和快捷键
       document.addEventListener('contextmenu', e => e.preventDefault());
       document.addEventListener('keydown', function(e) {
-        // F12, Ctrl+Shift+I, Ctrl+Shift+J, Ctrl+U, Ctrl+Shift+C
-        if (e.keyCode === 123 ||
-            (e.ctrlKey && e.shiftKey && (e.keyCode === 73 || e.keyCode === 74 || e.keyCode === 67)) ||
-            (e.ctrlKey && e.keyCode === 85)) {
+        const key = String(e.key || '').toLowerCase();
+        const blocked = e.keyCode === 123
+          || (e.ctrlKey && e.shiftKey && ['i', 'j', 'c'].includes(key))
+          || (e.ctrlKey && key === 'u');
+        if (blocked) {
           e.preventDefault();
           return false;
         }
       });
 
-      // 持续监控（每2秒检测一次，避免频繁检测）
-      setInterval(function() {
-        checkCount++;
-
-        // 每次检测都要确认
-        if (checkDevTools()) {
-          // 检测到开发者工具打开，刷新页面
-          location.reload();
-        }
-      }, 2000);
-
-      // 禁用console（非localhost）
       if (window.location.hostname !== 'localhost' && window.location.hostname !== '127.0.0.1') {
         const noop = function() {};
         ['log', 'info', 'warn', 'error', 'debug'].forEach(method => {
-          console[method] = noop;
+          try {
+            console[method] = noop;
+          } catch (_) {}
         });
       }
     })();
@@ -7599,6 +7530,6 @@
     }
   </style>
 
-  <script src="app.js?v=20260218001"></script>
+  <script src="app.js?v=20260218002"></script>
 </body>
 </html>
diff --git a/frontend/app.js b/frontend/app.js
index ed54903..a6ef11f 100644
--- a/frontend/app.js
+++ b/frontend/app.js
@@ -623,8 +623,14 @@ createApp({
       }
 
       list.sort((a, b) => {
-        const getTime = s => s.created_at ? new Date(s.created_at).getTime() : 0;
-        const getExpire = s => s.expires_at ? new Date(s.expires_at).getTime() : Number.MAX_SAFE_INTEGER;
+        const getTime = (s) => {
+          const date = this.parseDateValue(s?.created_at);
+          return date ? date.getTime() : 0;
+        };
+        const getExpire = (s) => {
+          const date = this.parseDateValue(s?.expires_at);
+          return date ? date.getTime() : Number.MAX_SAFE_INTEGER;
+        };
 
         switch (this.shareFilters.sort) {
           case 'created_asc':
@@ -657,8 +663,10 @@ createApp({
       }
 
       list.sort((a, b) => {
-        const ta = a.created_at ? new Date(a.created_at).getTime() : 0;
-        const tb = b.created_at ? new Date(b.created_at).getTime() : 0;
+        const da = this.parseDateValue(a?.created_at);
+        const db = this.parseDateValue(b?.created_at);
+        const ta = da ? da.getTime() : 0;
+        const tb = db ? db.getTime() : 0;
         return tb - ta;
       });
 
@@ -3006,7 +3014,8 @@ handleDragLeave(e) {
     formatExpireTime(expiresAt) {
       if (!expiresAt) return '永久有效';
 
-      const expireDate = new Date(expiresAt);
+      const expireDate = this.parseDateValue(expiresAt);
+      if (!expireDate) return String(expiresAt);
       const now = new Date();
       const diffMs = expireDate - now;
       const diffMinutes = Math.floor(diffMs / (1000 * 60));
@@ -3040,7 +3049,8 @@ handleDragLeave(e) {
     // 判断是否即将过期（3天内）
     isExpiringSoon(expiresAt) {
       if (!expiresAt) return false;
-      const expireDate = new Date(expiresAt);
+      const expireDate = this.parseDateValue(expiresAt);
+      if (!expireDate) return false;
       const now = new Date();
       const diffMs = expireDate - now;
       const diffDays = diffMs / (1000 * 60 * 60 * 24);
@@ -3050,7 +3060,8 @@ handleDragLeave(e) {
     // 判断是否已过期
     isExpired(expiresAt) {
       if (!expiresAt) return false;
-      const expireDate = new Date(expiresAt);
+      const expireDate = this.parseDateValue(expiresAt);
+      if (!expireDate) return false;
       const now = new Date();
       return expireDate <= now;
     },
@@ -3148,8 +3159,8 @@ handleDragLeave(e) {
     // 格式化时间
     formatDateTime(value) {
       if (!value) return '--';
-      const d = new Date(value);
-      if (Number.isNaN(d.getTime())) return value;
+      const d = this.parseDateValue(value);
+      if (!d) return value;
       return d.toLocaleString();
     },
 
@@ -4141,14 +4152,41 @@ handleDragLeave(e) {
       return '不自动重置';
     },
 
+    parseDateValue(value) {
+      if (!value) return null;
+      if (value instanceof Date) {
+        return Number.isNaN(value.getTime()) ? null : value;
+      }
+
+      const raw = String(value).trim();
+      if (!raw) return null;
+
+      const localMatch = raw.match(/^(\d{4})-(\d{2})-(\d{2})(?:[ T](\d{2}):(\d{2})(?::(\d{2}))?)?$/);
+      if (localMatch) {
+        const year = Number(localMatch[1]);
+        const month = Number(localMatch[2]);
+        const day = Number(localMatch[3]);
+        const hour = Number(localMatch[4] || 0);
+        const minute = Number(localMatch[5] || 0);
+        const second = Number(localMatch[6] || 0);
+
+        const localDate = new Date(year, month - 1, day, hour, minute, second);
+        return Number.isNaN(localDate.getTime()) ? null : localDate;
+      }
+
+      const normalized = raw.includes('T') ? raw : raw.replace(' ', 'T');
+      const parsed = new Date(normalized);
+      return Number.isNaN(parsed.getTime()) ? null : parsed;
+    },
+
     toDateTimeLocalInput(dateString) {
       if (!dateString) return '';
       const normalized = String(dateString).trim().replace(' ', 'T');
       const match = normalized.match(/^(\d{4}-\d{2}-\d{2}T\d{2}:\d{2})/);
       if (match) return match[1];
 
-      const parsed = new Date(normalized);
-      if (Number.isNaN(parsed.getTime())) return '';
+      const parsed = this.parseDateValue(dateString);
+      if (!parsed) return '';
       const year = parsed.getFullYear();
       const month = String(parsed.getMonth() + 1).padStart(2, '0');
       const day = String(parsed.getDate()).padStart(2, '0');
@@ -4169,16 +4207,9 @@ handleDragLeave(e) {
 
     formatDate(dateString) {
       if (!dateString) return '-';
-      
-      // SQLite 返回的是 UTC 时间字符串，需要显式处理
-      // 如果字符串不包含时区信息，手动添加 'Z' 标记为 UTC
-      let dateStr = dateString;
-      if (!dateStr.includes('Z') && !dateStr.includes('+') && !dateStr.includes('T')) {
-        // SQLite 格式: "2025-11-13 16:37:19" -> ISO格式: "2025-11-13T16:37:19Z"
-        dateStr = dateStr.replace(' ', 'T') + 'Z';
-      }
-      
-      const date = new Date(dateStr);
+
+      const date = this.parseDateValue(dateString);
+      if (!date) return String(dateString);
       const year = date.getFullYear();
       const month = String(date.getMonth() + 1).padStart(2, '0');
       const day = String(date.getDate()).padStart(2, '0');
@@ -4511,7 +4542,8 @@ handleDragLeave(e) {
 
     formatLogTime(timestamp) {
       if (!timestamp) return '';
-      const date = new Date(timestamp);
+      const date = this.parseDateValue(timestamp);
+      if (!date) return String(timestamp);
       return date.toLocaleString('zh-CN', {
         year: 'numeric',
         month: '2-digit',
diff --git a/frontend/share.html b/frontend/share.html
index 839a2e2..ce44ebe 100644
--- a/frontend/share.html
+++ b/frontend/share.html
@@ -1369,17 +1369,36 @@
           return 'color: #9E9E9E;';
         },
 
-        formatDate(dateString) {
-          if (!dateString) return '';
-
-          // SQLite 返回的是 UTC 时间字符串，需要显式处理
-          let dateStr = dateString;
-          if (!dateStr.includes('Z') && !dateStr.includes('+') && !dateStr.includes('T')) {
-            // SQLite 格式: "2025-11-13 16:37:19" -> ISO格式: "2025-11-13T16:37:19Z"
-            dateStr = dateStr.replace(' ', 'T') + 'Z';
+        parseDateValue(value) {
+          if (!value) return null;
+          if (value instanceof Date) {
+            return Number.isNaN(value.getTime()) ? null : value;
           }
 
-          const date = new Date(dateStr);
+          const raw = String(value).trim();
+          if (!raw) return null;
+
+          const localMatch = raw.match(/^(\d{4})-(\d{2})-(\d{2})(?:[ T](\d{2}):(\d{2})(?::(\d{2}))?)?$/);
+          if (localMatch) {
+            const year = Number(localMatch[1]);
+            const month = Number(localMatch[2]);
+            const day = Number(localMatch[3]);
+            const hour = Number(localMatch[4] || 0);
+            const minute = Number(localMatch[5] || 0);
+            const second = Number(localMatch[6] || 0);
+            const localDate = new Date(year, month - 1, day, hour, minute, second);
+            return Number.isNaN(localDate.getTime()) ? null : localDate;
+          }
+
+          const normalized = raw.includes('T') ? raw : raw.replace(' ', 'T');
+          const parsed = new Date(normalized);
+          return Number.isNaN(parsed.getTime()) ? null : parsed;
+        },
+
+        formatDate(dateString) {
+          if (!dateString) return '';
+          const date = this.parseDateValue(dateString);
+          if (!date) return String(dateString);
           return date.toLocaleString('zh-CN', {
             year: 'numeric',
             month: '2-digit',
@@ -1395,7 +1414,8 @@
         formatExpireTime(expiresAt) {
           if (!expiresAt) return '永久有效';
 
-          const expireDate = new Date(expiresAt);
+          const expireDate = this.parseDateValue(expiresAt);
+          if (!expireDate) return String(expiresAt);
           const now = new Date();
           const diffMs = expireDate - now;
           const diffMinutes = Math.floor(diffMs / (1000 * 60));
@@ -1429,7 +1449,8 @@
         // 判断是否即将过期（3天内）
         isExpiringSoon(expiresAt) {
           if (!expiresAt) return false;
-          const expireDate = new Date(expiresAt);
+          const expireDate = this.parseDateValue(expiresAt);
+          if (!expireDate) return false;
           const now = new Date();
           const diffMs = expireDate - now;
           const diffDays = diffMs / (1000 * 60 * 60 * 24);
@@ -1439,7 +1460,8 @@
         // 判断是否已过期
         isExpired(expiresAt) {
           if (!expiresAt) return false;
-          const expireDate = new Date(expiresAt);
+          const expireDate = this.parseDateValue(expiresAt);
+          if (!expireDate) return false;
           const now = new Date();
           return expireDate <= now;
         }
@@ -1494,57 +1516,17 @@
     // 禁用F12和常见开发者工具快捷键（调试模式下不禁用）
     if (!isDebugMode) {
       document.addEventListener('keydown', function(e) {
-        // F12
-        if (e.key === 'F12' || e.keyCode === 123) {
-          e.preventDefault();
-          return false;
-        }
-        // Ctrl+Shift+I (开发者工具)
-        if (e.ctrlKey && e.shiftKey && (e.key === 'I' || e.keyCode === 73)) {
-          e.preventDefault();
-          return false;
-        }
-        // Ctrl+Shift+J (控制台)
-        if (e.ctrlKey && e.shiftKey && (e.key === 'J' || e.keyCode === 74)) {
-          e.preventDefault();
-          return false;
-        }
-        // Ctrl+U (查看源代码)
-        if (e.ctrlKey && (e.key === 'U' || e.keyCode === 85)) {
-          e.preventDefault();
-          return false;
-        }
-        // Ctrl+Shift+C (元素选择器)
-        if (e.ctrlKey && e.shiftKey && (e.key === 'C' || e.keyCode === 67)) {
+        const key = String(e.key || '').toLowerCase();
+        const blocked = e.keyCode === 123
+          || (e.ctrlKey && e.shiftKey && ['i', 'j', 'c'].includes(key))
+          || (e.ctrlKey && key === 'u');
+        if (blocked) {
           e.preventDefault();
           return false;
         }
       });
     }
 
-    // 检测开发者工具是否打开（调试模式下不检测）
-    if (!isDebugMode) {
-      (function() {
-        const threshold = 160;
-        let isDevToolsOpen = false;
-
-        setInterval(function() {
-          const widthThreshold = window.outerWidth - window.innerWidth > threshold;
-          const heightThreshold = window.outerHeight - window.innerHeight > threshold;
-
-          if (!(heightThreshold && widthThreshold) &&
-              ((window.Firebug && window.Firebug.chrome && window.Firebug.chrome.isInitialized) || widthThreshold || heightThreshold)) {
-            if (!isDevToolsOpen) {
-              isDevToolsOpen = true;
-              console.clear();
-            }
-          } else {
-            isDevToolsOpen = false;
-          }
-        }, 500);
-      })();
-    }
-
     // 禁用console输出（调试模式下不禁用）
     if (!isDebugMode && window.location.hostname !== 'localhost' && window.location.hostname !== '127.0.0.1') {
       console.log = function() {};