🎨 调整2026莫兰迪主题色

src/App.vue

@@ -42,11 +42,15 @@ const {
 }
 
 .light {
-  @apply bg-gradient-to-br from-blue-50 via-indigo-50 to-white;
+  background:
+    linear-gradient(135deg, #dfe9eb 0%, #edf3f2 46%, #f7f8f5 100%),
+    linear-gradient(90deg, rgba(103, 135, 145, 0.12), rgba(162, 172, 154, 0.1));
 }
 
 .dark {
-  @apply bg-gradient-to-br from-gray-900 via-indigo-900 to-black;
+  background:
+    linear-gradient(135deg, #10191e 0%, #17252b 48%, #223036 100%),
+    linear-gradient(90deg, rgba(113, 153, 168, 0.12), rgba(117, 143, 132, 0.08));
 }
 
 .fade-enter-active,
@@ -100,7 +104,7 @@ const {
   width: 50px;
   height: 50px;
   border: 3px solid #fff;
-  border-top: 3px solid #3498db;
+  border-top: 3px solid #6f98a6;
   border-radius: 50%;
   animation: spin 1s linear infinite;
 }