diff --git a/B05_Profile/B05_Profile_UI_Style_RouteEdit.css b/B05_Profile/B05_Profile_UI_Style_RouteEdit.css
index b733e40af..6ca353168 100644
--- a/B05_Profile/B05_Profile_UI_Style_RouteEdit.css
+++ b/B05_Profile/B05_Profile_UI_Style_RouteEdit.css
@@ -200,6 +200,11 @@
   pointer-events: auto;
 }
 
+/* 접힌 손잡이 = 지도 오른쪽 끝에 딱 붙임(393-5 · 빈 틈 0) */
+.b05-routeedit__side-wrap:has(.ui-side-panels.is-collapsed) {
+  right: 0;
+}
+
 .b05-routeedit__side-wrap .ui-side-panels__panel {
   box-shadow: 0 12px 40px rgb(0 0 0 / 45%);
 }
diff --git a/resources/tester/test_b05_routeedit_chrome_modal.py b/resources/tester/test_b05_routeedit_chrome_modal.py
index 8fd6afcce..a3cbe238e 100644
--- a/resources/tester/test_b05_routeedit_chrome_modal.py
+++ b/resources/tester/test_b05_routeedit_chrome_modal.py
@@ -129,3 +129,13 @@ def test_페이지_수명_닫기_없음():
     assert "container: overlay," in main
     apply = _read("B05_Profile_UI_RouteEdit_Apply.ts")
     assert "close" not in apply.split("export function bindRouteApply", 1)[1]
+
+
+def test_393_5_접힌_손잡이는_지도_오른쪽_끝에_붙음():
+    css = _read("B05_Profile_UI_Style_RouteEdit.css")
+    flush = _block(css, ".b05-routeedit__side-wrap:has(.ui-side-panels.is-collapsed)")
+    assert "right: 0;" in flush
+    # 펼친 판은 그대로 띄움
+    assert "right: var(--spacing-12);" in _block(css, ".b05-routeedit__side-wrap")
+    side = (ROOT / "ui_template" / "ui_template_side_panels.ts").read_text(encoding="utf-8")
+    assert 'root.classList.toggle("is-collapsed", now === null);' in side