diff --git a/README_ko.md b/README_ko.md
index 85d3d2a83..50af76dae 100644
--- a/README_ko.md
+++ b/README_ko.md
@@ -3,7 +3,7 @@
 </div>
 
 <h3 align="center">
-    CSS-in-JS의 미래 — 제로 런타임, 완전한 문법 지원
+    CSS-in-JS의 미래 — 제로 런타임, 강력한 기능
 </h3>
 
 <p align="center">
diff --git a/apps/landing/src/app/(detail)/docs/overview/page.mdx b/apps/landing/src/app/(detail)/docs/overview/page.mdx
index 163c1524a..f18c581fc 100644
--- a/apps/landing/src/app/(detail)/docs/overview/page.mdx
+++ b/apps/landing/src/app/(detail)/docs/overview/page.mdx
@@ -23,7 +23,7 @@ export const metadata = {
 
 **Devup UI is not just another CSS-in-JS library — it's the future of CSS-in-JS itself.**
 
-Devup UI is a zero-runtime CSS-in-JS preprocessor powered by Rust and WebAssembly. It transforms all your styles at build time, completely eliminating runtime overhead while providing full CSS-in-JS syntax coverage.
+Devup UI is a zero-runtime CSS-in-JS preprocessor powered by Rust and WebAssembly. It transforms all your styles at build time, completely eliminating runtime overhead. It compiles the CSS-in-JS syntax you already write, and anything the build cannot know is a [located build error](/docs/build-errors) instead of a silent miss: see [supported syntax and limitations](/docs/limitations).
 
 ### The Problem with Traditional CSS-in-JS
 
@@ -72,8 +72,8 @@ Devup UI eliminates this trade-off entirely. Our Rust-powered preprocessor analy
       <TableCell>Limited</TableCell>
     </TableRow>
     <TableRow>
-      <TableCell>Full Syntax Coverage</TableCell>
-      <TableCell>Yes</TableCell>
+      <TableCell>Syntax Coverage</TableCell>
+      <TableCell>Broad; the rest is a build error</TableCell>
       <TableCell>Yes</TableCell>
       <TableCell>Yes</TableCell>
       <TableCell>No</TableCell>