diff --git a/src/app/globals.css b/src/app/globals.css
index 67e4690..4f65dd8 100644
--- a/src/app/globals.css
+++ b/src/app/globals.css
@@ -59,6 +59,9 @@
   --transition-fast: 0.15s ease;
   --transition-base: 0.2s ease;
   --transition-slow: 0.3s ease;
+
+  /* 字体大小 */
+  --font-size-base: 15px;
 }
 
 @theme inline {
@@ -92,6 +95,7 @@ body {
   background-color: var(--color-bg-secondary);
   color: var(--color-text-primary);
   font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
+  font-size: var(--font-size-base);
   line-height: 1.5;
   min-height: 100vh;
 }
@@ -151,6 +155,17 @@ body {
   }
 }
 
+@keyframes popUp {
+  from {
+    opacity: 0;
+    transform: translateY(8px) scale(0.95);
+  }
+  to {
+    opacity: 1;
+    transform: translateY(0) scale(1);
+  }
+}
+
 .animate-fade-in {
   animation: fadeIn var(--transition-base);
 }
@@ -163,6 +178,10 @@ body {
   animation: slideDown var(--transition-fast);
 }
 
+.animate-pop-up {
+  animation: popUp 0.15s ease-out;
+}
+
 /* ========================================
    响应式设计
    ======================================== */