diff --git a/apps/web/app/page.tsx b/apps/web/app/page.tsx
index 8c2c3c0..3e12aa8 100644
--- a/apps/web/app/page.tsx
+++ b/apps/web/app/page.tsx
@@ -23,7 +23,7 @@ export default async function DashboardPage() {
 
   return (
     <AppShell>
-      <PageContainer>
+      <PageContainer width="wide">
         <PageHeader
           title="我的作品"
           description="从一个灵感进入正文、设定、审稿与验收闭环。"
diff --git a/apps/web/components/projects/ProjectLibrary.tsx b/apps/web/components/projects/ProjectLibrary.tsx
index 4537bed..e4b0918 100644
--- a/apps/web/components/projects/ProjectLibrary.tsx
+++ b/apps/web/components/projects/ProjectLibrary.tsx
@@ -150,7 +150,7 @@ export function ProjectLibrary({ projects }: ProjectLibraryProps) {
           }
         />
       ) : viewMode === "cards" ? (
-        <ul className="grid grid-cols-1 gap-5 sm:grid-cols-2 lg:grid-cols-3">
+        <ul className="grid grid-cols-1 gap-5 sm:grid-cols-2 lg:grid-cols-3 xl:grid-cols-4">
           {visibleProjects.map((p) => (
             <li key={p.id}>
               <ProjectCard project={p} />
diff --git a/apps/web/components/ui/PageContainer.tsx b/apps/web/components/ui/PageContainer.tsx
index 7440043..3e94a00 100644
--- a/apps/web/components/ui/PageContainer.tsx
+++ b/apps/web/components/ui/PageContainer.tsx
@@ -7,7 +7,7 @@ export type PageWidth = "prose" | "default" | "wide";
 const widths: Record<PageWidth, string> = {
   prose: "max-w-3xl",
   default: "max-w-5xl",
-  wide: "max-w-6xl",
+  wide: "max-w-7xl",
 };
 
 interface PageContainerProps {
diff --git a/apps/web/tailwind.config.ts b/apps/web/tailwind.config.ts
index 329588e..0c1f10b 100644
--- a/apps/web/tailwind.config.ts
+++ b/apps/web/tailwind.config.ts
@@ -88,7 +88,7 @@ const config: Config = {
       transitionTimingFunction: {
         standard: "var(--ease-standard)",
       },
-      maxWidth: { prose: "720px" },
+      maxWidth: { prose: "768px" },
     },
   },
   plugins: [],