fix: tailwindcss config

internal/tailwind-config/src/theme.css

@@ -380,6 +380,13 @@
       @apply hidden;
     }
   }
+
+  /* Tailwind v4 Preflight 不再为 button 默认设置 pointer；见官方升级说明：
+   * https://tailwindcss.com/docs/upgrade-guide#buttons-use-the-default-cursor */
+  button:not(:disabled),
+  [role='button']:not(:disabled) {
+    @apply cursor-pointer;
+  }
 }
 
 /* Custom utilities (v4 @utility syntax) */
@@ -396,7 +403,9 @@
   justify-content: center;
 }
 
-/* Component styles (complex selectors, not convertible to @utility) */
+/* Tailwind v4 的 utilities 在 @layer 内；组件样式若留在 layer 外（unlayered），会按层叠规则压过 py-4 等工具类。
+ * 见：https://tailwindcss.com/docs/adding-custom-styles#using-css-and-layering */
+@layer components {
   .outline-box {
     @apply outline-border relative cursor-pointer rounded-md p-1 outline-1;
   }
@@ -424,6 +433,7 @@
   .card-box {
     @apply bg-card text-card-foreground border-border rounded-xl border;
   }
+}
 
 /* Enter animations (converted from enterAnimationPlugin) */
 @keyframes enter-x-animation {