修复部分已知问题

index.tsx

@@ -12,4 +12,24 @@ root.render(
   <React.StrictMode>
     <App />
   </React.StrictMode>
-);
+);
+
+// Remove the preloader when everything is loaded
+const removeLoader = () => {
+  const loader = document.getElementById('app-loader');
+  if (loader) {
+    // Add fade out effect
+    loader.style.opacity = '0';
+    // Remove from DOM after transition
+    setTimeout(() => {
+      loader.remove();
+    }, 500);
+  }
+};
+
+// Check if already loaded
+if (document.readyState === 'complete') {
+  removeLoader();
+} else {
+  window.addEventListener('load', removeLoader);
+}