diff --git a/apps/as/src/pages/dashboard/lib/national-as-map.module.css b/apps/as/src/pages/dashboard/lib/national-as-map.module.css
index 754f0d3d8..3a735138c 100644
--- a/apps/as/src/pages/dashboard/lib/national-as-map.module.css
+++ b/apps/as/src/pages/dashboard/lib/national-as-map.module.css
@@ -56,14 +56,12 @@
   fill: rgba(0, 150, 255, 0.2) !important;
   stroke: #0066cc;
   stroke-width: 1;
-  vector-effect: non-scaling-stroke;
 }
 
 .svgContainer :global(svg) :global(.cls-1) {
   fill: rgba(0, 150, 255, 0.2) !important;
   stroke: #0066cc;
   stroke-width: 1;
-  vector-effect: non-scaling-stroke;
 }
 
 .svgContainer :global(svg) :global(.basin) {
@@ -93,7 +91,6 @@
   fill: rgba(0, 209, 209, 0.5);
   stroke: #399ac3;
   stroke-width: 1.3;
-  vector-effect: non-scaling-stroke;
 }
 
 .popup {
diff --git a/apps/as/src/pages/dashboard/lib/use-national-as-map.ts b/apps/as/src/pages/dashboard/lib/use-national-as-map.ts
index 60d12b752..3dbcb22ec 100644
--- a/apps/as/src/pages/dashboard/lib/use-national-as-map.ts
+++ b/apps/as/src/pages/dashboard/lib/use-national-as-map.ts
@@ -247,6 +247,11 @@ export function useNationalAsMap(basinDocPrgrsList: BasinDocPrgrsResponseDto[] |
         svg = svgLayerRef.current.querySelector("svg");
         if (!svg) throw new Error("SVG element not found in loaded content");
 
+        // 확대·축소해도 선 두께 유지. CSS 의 vector-effect 는 W3C CSS 검사 오류로 처리되므로 SVG 속성으로 지정
+        svg.querySelectorAll("path, polygon, polyline").forEach((shape) => {
+          shape.setAttribute("vector-effect", "non-scaling-stroke");
+        });
+
         applyViewBox(svg, stageRef.current);
         groups = collectBasinGroups(svg);
         labels = labelsLayerRef.current ? createLabels(labelsLayerRef.current, groups) : [];
diff --git a/packages/common/components/src/ui/combobox/index.tsx b/packages/common/components/src/ui/combobox/index.tsx
index 64298bc4e..d5209f864 100644
--- a/packages/common/components/src/ui/combobox/index.tsx
+++ b/packages/common/components/src/ui/combobox/index.tsx
@@ -117,7 +117,7 @@ function ComboboxContent({
           data-slot="combobox-content"
           data-chips={!!anchor}
           className={cn(
-            "group/combobox-content max-h-(--available-height) w-(--anchor-width) max-w-(--available-width) origin-(--transform-origin) ring-foreground/10 data-[chips=true]:min-w-(--anchor-width) *:data-[slot=input-group]:border-input/30 *:data-[slot=input-group]:bg-input/30 data-open:animate-in data-open:fade-in-0 data-open:zoom-in-95 data-closed:animate-out data-closed:fade-out-0 data-closed:zoom-out-95 relative min-w-[calc(var(--anchor-width)+--spacing(7))] overflow-hidden rounded-sm border-input bg-popover text-popover-foreground shadow-md duration-100 data-[side=bottom]:slide-in-from-top-2 data-[side=inline-end]:slide-in-from-left-2 data-[side=inline-start]:slide-in-from-right-2 data-[side=left]:slide-in-from-right-2 data-[side=right]:slide-in-from-left-2 data-[side=top]:slide-in-from-bottom-2 *:data-[slot=input-group]:m-1 *:data-[slot=input-group]:mb-0 *:data-[slot=input-group]:h-8 *:data-[slot=input-group]:shadow-none",
+            "group/combobox-content max-h-(--available-height) w-(--anchor-width) max-w-(--available-width) origin-(--transform-origin) ring-foreground/10 data-[chips=true]:min-w-(--anchor-width) *:data-[slot=input-group]:border-input/30 *:data-[slot=input-group]:bg-input/30 data-open:animate-in data-open:fade-in-0 data-open:zoom-in-95 data-closed:animate-out data-closed:fade-out-0 data-closed:zoom-out-95 relative min-w-[calc(var(--anchor-width)_+_theme(spacing.7))] overflow-hidden rounded-sm border-input bg-popover text-popover-foreground shadow-md duration-100 data-[side=bottom]:slide-in-from-top-2 data-[side=inline-end]:slide-in-from-left-2 data-[side=inline-start]:slide-in-from-right-2 data-[side=left]:slide-in-from-right-2 data-[side=right]:slide-in-from-left-2 data-[side=top]:slide-in-from-bottom-2 *:data-[slot=input-group]:m-1 *:data-[slot=input-group]:mb-0 *:data-[slot=input-group]:h-8 *:data-[slot=input-group]:shadow-none",
             className,
           )}
           {...props}
@@ -132,7 +132,7 @@ function ComboboxList({ className, ...props }: ComboboxPrimitive.List.Props) {
     <ComboboxPrimitive.List
       data-slot="combobox-list"
       className={cn(
-        "no-scrollbar data-empty:p-0 max-h-[min(calc(--spacing(72)---spacing(9)),calc(var(--available-height)---spacing(9)))] scroll-py-1 overflow-y-auto overscroll-contain rounded-sm border border-input p-1",
+        "no-scrollbar data-empty:p-0 max-h-[min(calc(theme(spacing.72)_-_theme(spacing.9)),calc(var(--available-height)_-_theme(spacing.9)))] scroll-py-1 overflow-y-auto overscroll-contain rounded-sm border border-input p-1",
         className,
       )}
       {...props}