diff --git a/B06_Section/B06_Section_UI_Cross_Structure_Panel.ts b/B06_Section/B06_Section_UI_Cross_Structure_Panel.ts
index cb9b2d4b..b58527ad 100644
--- a/B06_Section/B06_Section_UI_Cross_Structure_Panel.ts
+++ b/B06_Section/B06_Section_UI_Cross_Structure_Panel.ts
@@ -219,29 +219,21 @@ export function buildStructurePanel(deps: StructurePanelDeps): StructurePanelHan
   });
   structureParts.controls.append(select);
 
-  // 다단 기슭막이 단 수(2026-08-22 사용자) — 숫자 입력 + ＋/－ 병행(스피너는 CSS 제거).
+  // 다단 기슭막이 단 수(2026-08-22 사용자) — 높이 행과 같은 형식(－ 값 ＋),
+  // 직접 입력 없음. 현재 단 수는 show()가 채운다.
   const extraParts = makeRow(L("B06_Cross_Extra_Count"));
   const extraRow = extraParts.row;
-  const countInput = document.createElement("input");
-  countInput.type = "number";
-  countInput.min = "0";
-  countInput.max = "9";
-  countInput.step = "1";
-  countInput.className = "b06-structure-panel__count";
-  const clampCount = (value: number): number =>
-    Math.max(0, Math.min(9, Math.round(Number.isFinite(value) ? value : 0)));
-  countInput.addEventListener("change", () => {
-    const requested = clampCount(Number(countInput.value));
-    countInput.value = String(requested);
-    deps.setExtraCount(requested);
-  });
+  const countValue = document.createElement("span");
+  countValue.className = "b06-structure-panel__hval";
+  let currentCount = 0;
+  const clampCount = (value: number): number => Math.max(0, Math.min(9, Math.round(value)));
   const countMinus = makeButton("－", L("B06_Cross_Extra_Remove"), () =>
-    deps.setExtraCount(clampCount(Number(countInput.value) - 1)),
+    deps.setExtraCount(clampCount(currentCount - 1)),
   );
   const countPlus = makeButton("＋", L("B06_Cross_Extra_Add"), () =>
-    deps.setExtraCount(clampCount(Number(countInput.value) + 1)),
+    deps.setExtraCount(clampCount(currentCount + 1)),
   );
-  extraParts.controls.append(countMinus, countInput, countPlus);
+  extraParts.controls.append(countMinus, countValue, countPlus);
 
   const closeButton = makeButton("✕", L("B06_Cross_Revet_Close"), () => deps.close());
   closeButton.classList.add("b06-structure-panel__close");
@@ -293,7 +285,8 @@ export function buildStructurePanel(deps: StructurePanelDeps): StructurePanelHan
       // 나타났다 사라지면 레이아웃이 널뛴다).
       const extra = deps.extraState();
       extraRow.classList.toggle("is-hidden", key !== "outlet");
-      countInput.value = String(extra.count);
+      currentCount = extra.count;
+      countValue.textContent = `${extra.count}단`;
       const adjust = deps.adjustFor(key);
       // 조작 요약 — 0이면 "자동". 좌우는 안/바깥, 상하는 위/아래로 적는다.
       const parts: string[] = [];
diff --git a/B06_Section/B06_Section_UI_Style_Cross.css b/B06_Section/B06_Section_UI_Style_Cross.css
index 253ee9f8..04e3e732 100644
--- a/B06_Section/B06_Section_UI_Style_Cross.css
+++ b/B06_Section/B06_Section_UI_Style_Cross.css
@@ -637,28 +637,20 @@
   display: none;
 }
 
-/* 숫자 입력의 브라우저 스피너 제거(2026-08-22 사용자 — ＋/－ 버튼으로 조작). */
-.b06-structure-panel__count::-webkit-inner-spin-button,
-.b06-structure-panel__count::-webkit-outer-spin-button {
-  -webkit-appearance: none;
-  margin: 0;
-}
-
-.b06-structure-panel__count {
-  -moz-appearance: textfield;
-  appearance: textfield;
+/* 값 조작 버튼은 정사각 고정 폭 — 높이·단 수·십자 이동의 행열이 맞는다
+   (2026-08-22 사용자 — 버튼 행열 정렬). */
+.b06-structure-panel__controls .b06-structure-panel__btn {
+  box-sizing: border-box;
+  width: 26px;
+  height: 22px;
+  padding: 0;
   text-align: center;
-  width: 2.5em;
-  padding: 0 4px;
-  border: 1px solid var(--color-border);
-  border-radius: var(--radius-inputs);
-  background: var(--color-surface);
-  color: var(--color-text-body);
-  font-size: var(--text-caption);
+  line-height: 1;
 }
 
 .b06-structure-panel__hval {
-  min-width: 3em;
+  box-sizing: border-box;
+  width: 3.5em;
   text-align: center;
   color: var(--color-text-body);
   font-size: var(--text-caption);