nav新增动画，修复潜在的性能和bug，优化动画流畅度

components/Navbar.tsx

@@ -133,18 +133,18 @@ export default function Navbar() {
       {/* Launch App Button & Language Selector */}
       <div className="flex-1 flex justify-end items-center gap-4">
         <div
-          className="bg-[#111827] rounded-lg px-5 py-2.5 h-10 flex items-center justify-center overflow-hidden cursor-pointer hover:opacity-90 select-none"
           style={{
             transform: animate ? 'translateY(0)' : 'translateY(-3rem)',
             opacity: animate ? 1 : 0,
-            transition: 'all 1s ease-out',
-            transitionDelay: '200ms'
+            transition: 'transform 1s ease-out 200ms, opacity 1s ease-out 200ms'
           }}
           suppressHydrationWarning
         >
-          <span className="text-[#fcfcfd] font-bold text-sm leading-[150%] font-inter">
-            {t('nav.launchApp')}
-          </span>
+          <div className="bg-[#111827] rounded-lg px-5 py-2.5 h-10 flex items-center justify-center overflow-hidden cursor-pointer hover:scale-105 select-none transition-transform duration-300">
+            <span className="text-[#fcfcfd] font-bold text-sm leading-[150%] font-inter">
+              {t('nav.launchApp')}
+            </span>
+          </div>
         </div>
 
         {/* Language Selector */}