diff --git a/apps/kimi-web/src/components/ChatPane.vue b/apps/kimi-web/src/components/ChatPane.vue
index c3dcd5dca..c0e19bbf9 100644
--- a/apps/kimi-web/src/components/ChatPane.vue
+++ b/apps/kimi-web/src/components/ChatPane.vue
@@ -404,4 +404,24 @@ function turnBlocks(turn: ChatTurn): TurnBlock[] {
 .sending-line .tx {
   padding-top: 2px;
 }
+
+/* Mobile font bump (+2px) */
+@media (max-width: 640px) {
+  .u-bub .msg,
+  .a-msg .msg {
+    font-size: 16px;
+  }
+  .userline .pr,
+  .ai .pr,
+  .who {
+    font-size: 14.5px;
+  }
+  .ts {
+    font-size: 13px;
+  }
+  .chat-empty-text,
+  .chat-loading-text {
+    font-size: 15px;
+  }
+}
 </style>
diff --git a/apps/kimi-web/src/components/Composer.vue b/apps/kimi-web/src/components/Composer.vue
index 25a602f50..080bf5b44 100644
--- a/apps/kimi-web/src/components/Composer.vue
+++ b/apps/kimi-web/src/components/Composer.vue
@@ -1514,6 +1514,27 @@ function selectModel(modelId: string): void {
     min-width: 200px;
     max-width: calc(100vw - 40px);
   }
+
+  /* Bump mobile font sizes +2px and pin input at 16px to prevent iOS zoom. */
+  .ph {
+    font-size: 16px;
+  }
+  .model-pill,
+  .attach-btn {
+    font-size: 12.5px;
+  }
+  .md-row {
+    font-size: 13.5px;
+  }
+  .md-section {
+    font-size: 12px;
+  }
+  .pd-name {
+    font-size: 14px;
+  }
+  .pd-desc {
+    font-size: 12.5px;
+  }
 }
 
 /* NOTE: Modern-theme composer overrides live in src/style.css (global), NOT here.
diff --git a/apps/kimi-web/src/components/ConversationPane.vue b/apps/kimi-web/src/components/ConversationPane.vue
index 1cd00aeff..2f373eb88 100644
--- a/apps/kimi-web/src/components/ConversationPane.vue
+++ b/apps/kimi-web/src/components/ConversationPane.vue
@@ -870,7 +870,7 @@ onUnmounted(() => {
     border-bottom: 1px solid var(--line);
     color: var(--dim);
     font-family: var(--mono);
-    font-size: 13px;
+    font-size: 15px;
     cursor: pointer;
     text-align: left;
   }
diff --git a/apps/kimi-web/src/components/TabBar.vue b/apps/kimi-web/src/components/TabBar.vue
index 81ceb7155..e76850ca7 100644
--- a/apps/kimi-web/src/components/TabBar.vue
+++ b/apps/kimi-web/src/components/TabBar.vue
@@ -144,7 +144,7 @@ const tabs: { key: PaneKey; labelKey: string }[] = [
   gap: 5px;
   padding: 0;
   font-family: var(--mono);
-  font-size: 12.5px;
+  font-size: 14.5px;
   color: var(--muted);
   border-right: none;
   border-bottom: none;
@@ -157,8 +157,8 @@ const tabs: { key: PaneKey; labelKey: string }[] = [
 }
 /* Tasks → solid blue count pill (prototype .bdg). */
 .tabs.mobile .cnt {
-  min-width: 16px;
-  height: 16px;
+  min-width: 18px;
+  height: 18px;
   padding: 0 4px;
   display: flex;
   align-items: center;
@@ -166,7 +166,7 @@ const tabs: { key: PaneKey; labelKey: string }[] = [
   background: var(--blue);
   color: #fff;
   border-radius: 9px;
-  font-size: 10px;
+  font-size: 12px;
   font-weight: 600;
 }
 /* Diff → small warn dot (prototype .dt). */