diff --git a/index.html b/index.html
index e60ce11..52c8f58 100644
--- a/index.html
+++ b/index.html
@@ -196,10 +196,6 @@
               <p id="abut-panel-plan-msg" class="muted" aria-live="polite"></p>
             </div>
             <div id="abut-panel-plan-shape" class="edit-row abut-shape-view"></div>
-            <details class="abut-group">
-              <summary>상세 (계산값)</summary>
-              <dl id="abut-panel-plan-summary" class="kv wide"></dl>
-            </details>
           </section>
           <p class="lbl abut-members-title">부재 · 교대</p>
           <ul id="abut-members" class="members abut-members" aria-label="교대 부재"></ul>
diff --git a/src/main.ts b/src/main.ts
index ea32e80..8570d73 100644
--- a/src/main.ts
+++ b/src/main.ts
@@ -704,7 +704,7 @@ const ABUT_QA_NOTES = [
 
 const ABUT_SLOTS = {
   shape: { root: 'abut-panel', name: 'abut-panel-name', input: 'abut-panel-input', toggle: 'abut-panel-edit-toggle', editor: 'abut-panel-editor', summary: 'abut-panel-summary', basic: 'abut-panel-basic', bearings: 'abut-panel-bearings', shape: 'abut-panel-shape', msg: 'abut-panel-msg', prefix: 'abs' },
-  plan: { wing: 'abut-panel-plan-wing', root: 'abut-panel-plan',name: 'abut-panel-plan-name', toggle: 'abut-panel-plan-edit-toggle', editor: 'abut-panel-plan-editor', summary: 'abut-panel-plan-summary', basic: 'abut-panel-plan-basic', bearings: 'abut-panel-plan-bearings', shape: 'abut-panel-plan-shape', msg: 'abut-panel-plan-msg', prefix: 'abp' },
+  plan: { wing: 'abut-panel-plan-wing', root: 'abut-panel-plan',name: 'abut-panel-plan-name', toggle: 'abut-panel-plan-edit-toggle', editor: 'abut-panel-plan-editor', basic: 'abut-panel-plan-basic', bearings: 'abut-panel-plan-bearings', shape: 'abut-panel-plan-shape', msg: 'abut-panel-plan-msg', prefix: 'abp' },
 } as const;
 
 /** Shows the 교대 입력 in place of the pier info when an abutment is selected (2026-11-03). */
@@ -768,7 +768,8 @@ function fillAbutSlot(slot: (typeof ABUT_SLOTS)[keyof typeof ABUT_SLOTS], rec: A
   };
   // ② has no 입력값 list: its values are in ① and on the 삽도 labels (2026-11-03).
   if ('input' in slot) fillList($<HTMLDListElement>(slot.input), abutInputRows(rec));
-  fillList($<HTMLDListElement>(slot.summary), abutSummaryRows(rec).filter(([label]) => ABUT_DETAIL_LABELS.includes(label)));
+  // ② has no 상세 (계산값) block (2026-11-03); ① keeps it.
+  if ('summary' in slot) fillList($<HTMLDListElement>(slot.summary), abutSummaryRows(rec).filter(([label]) => ABUT_DETAIL_LABELS.includes(label)));
   // 편집 opens the editable fields; they stay closed until asked for (2026-11-03).
   const toggle = $<HTMLButtonElement>(slot.toggle);
   toggle.textContent = state.abutEditOpen ? '닫기' : '편집';