refactor: 调整管理后台容器宽度样式

src/routes/admin/+layout.svelte

@@ -97,7 +97,7 @@
 </header>
 
 <main id="pjax-container" style="padding-top: 58px; min-height: calc(100vh - 120px);">
-	<div class="wrapper container wide admin-container">
+	<div class="wrapper container admin-container">
 		{@render children()}
 	</div>
 </main>
@@ -106,11 +106,20 @@
 <ConfirmDialog />
 
 <style>
+	:global(.wrapper.container.admin-container),
 	.admin-container {
+		max-width: 1400px;
 		padding-top: 2rem;
 		padding-bottom: 4rem;
 	}
 
+	@media screen and (min-width: 1600px) {
+		:global(.wrapper.container.admin-container),
+		.admin-container {
+			max-width: 1440px;
+		}
+	}
+
 	.user-info {
 		position: absolute;
 		right: 20px;