diff --git a/src/styles/generation-flow.css b/src/styles/generation-flow.css
index 3f75f7d..cc8bbdf 100644
--- a/src/styles/generation-flow.css
+++ b/src/styles/generation-flow.css
@@ -1808,10 +1808,6 @@
   body:has(.sidebar.expanded) .bi2-header {
     left: 15rem;
   }
-
-  body:has(.sidebar.collapsed) .bi2-header {
-    left: 5rem;
-  }
 }
 
 .bi2-back-btn {
@@ -2294,9 +2290,12 @@
   body:has(.sidebar.expanded) .bi2-bottom-button-container {
     left: 15rem;
   }
+}
 
-  body:has(.sidebar.collapsed) .bi2-bottom-button-container {
-    left: 5rem;
+/* 모바일: 하단 탭바에 가리지 않도록 띄운다 */
+@media (max-width: 767px) {
+  .bi2-bottom-button-container {
+    bottom: calc(var(--bottom-nav-height) + 16px);
   }
 }