diff --git a/.changeset/kimi-toolbar-radius.md b/.changeset/kimi-toolbar-radius.md
new file mode 100644
index 000000000..2c8630cc5
--- /dev/null
+++ b/.changeset/kimi-toolbar-radius.md
@@ -0,0 +1,5 @@
+---
+"@moonshot-ai/kimi-code": patch
+---
+
+Unify the Kimi theme composer card and toolbar bottom radius using the `--r-xl` radius token.
diff --git a/apps/kimi-web/src/style.css b/apps/kimi-web/src/style.css
index 081c7a78a..b76f3806d 100644
--- a/apps/kimi-web/src/style.css
+++ b/apps/kimi-web/src/style.css
@@ -35,6 +35,7 @@
   --r-sm: 8px;
   --r-md: 12px;
   --r-lg: 16px;
+  --r-xl: 20px;
   --ui-font-size: 14px;
   --ui-font-size-sm: calc(var(--ui-font-size) - 1px);
   --ui-font-size-xs: calc(var(--ui-font-size) - 2px);
@@ -876,10 +877,14 @@ html[data-color-scheme="dark"][data-theme="kimi"] {
 /* Composer: the one card that keeps a shadow (effect.shadow.inputDefault),
    with the chat-input radius documented in web-best-practices §8. */
 html[data-theme="kimi"] .composer-card {
-  border-radius: 20px;
+  border-radius: var(--r-xl);
   box-shadow: 0 5px 16px -4px rgba(0, 0, 0, 0.07);
 }
 
+html[data-theme="kimi"] .toolbar {
+  border-radius: 0 0 var(--r-xl) var(--r-xl);
+}
+
 /* Cards stay flat: no hover lift, no shadow (Quiet Utility / card.md). */
 html[data-theme="kimi"] .box:hover {
   transform: none;