refactor(web): 采用 Button/Card 原语替换多处手搓样式

apps/web/components/style/RefineView.tsx

@@ -46,14 +46,15 @@ export function RefineView({
     >
       <div className="mb-2 flex items-center justify-between">
         <h3 className="font-semibold text-ink">回炉对比</h3>
-        <button
+        <Button
           type="button"
+          variant="ghost"
+          size="icon"
           onClick={onClose}
-          className="rounded border border-transparent p-1 text-ink-soft hover:border-line hover:text-cinnabar"
-          aria-label="关闭回炉对比"
+          aria-label="关闭"
         >
           <X className="h-4 w-4" aria-hidden="true" />
-        </button>
+        </Button>
       </div>
 
       {segment.trim().length === 0 ? (