diff --git a/M01_MasterData/M01_MasterData_Router.py b/M01_MasterData/M01_MasterData_Router.py
index 273f709ad..d3d083af4 100644
--- a/M01_MasterData/M01_MasterData_Router.py
+++ b/M01_MasterData/M01_MasterData_Router.py
@@ -16,6 +16,7 @@ from M01_MasterData import M01_MasterData_Store as store
 from M01_MasterData import M01_MasterData_Store_Combo as combo_store
 from M01_MasterData import M01_MasterData_Store_Flow as flow
 from M01_MasterData import M01_MasterData_Store_Make as make
+from M01_MasterData import M01_MasterData_Store_Revise as revise
 
 import master_basis as mbs  # noqa: E402  (`store` 가 scripts 를 길에 둠)
 
@@ -49,6 +50,7 @@ class FileChanges(BaseModel):
 
 class SaveBody(BaseModel):
     files: list[FileChanges]
+    개정확인: bool = False  # 로직 정본 줄 고침 = 「원문 개정 반영」 확인(713-1) · 없으면 409
 
 
 class NewLogic(BaseModel):
@@ -196,7 +198,9 @@ def get_logics(
 
 @router.get("/logic")
 def get_logic(key: str) -> dict:
-    return _call(store.logic, key)
+    """`지문` = 줄 바탕 지문(계산 칸 · `Store_Revise.row_print`) — M02 덮개 「M01 개정」 비교 값."""
+    out = _call(store.logic, key)
+    return {**out, "지문": revise.row_print(out["logic"])}
 
 
 @router.get("/logic/source")
@@ -275,7 +279,7 @@ def post_text(body: CalcBody) -> dict:
 @router.post("/save")
 def post_save(body: SaveBody) -> dict:
     """「흐름」 줄은 검사 · 서버 다시 셈 · 새 줄(키 없음)은 자체 GX — {files, added, warnings}."""
-    return _call(flow.save, [f.model_dump() for f in body.files])
+    return _call(flow.save, [f.model_dump() for f in body.files], body.개정확인)
 
 
 @router.get("/logic/flow")
diff --git a/M01_MasterData/M01_MasterData_Store_Flow.py b/M01_MasterData/M01_MasterData_Store_Flow.py
index c2d83eaf0..34e111133 100644
--- a/M01_MasterData/M01_MasterData_Store_Flow.py
+++ b/M01_MasterData/M01_MasterData_Store_Flow.py
@@ -21,6 +21,7 @@ from typing import Any
 
 from M01_MasterData import M01_MasterData_Store as store
 from M01_MasterData import M01_MasterData_Store_Make as make
+from M01_MasterData import M01_MasterData_Store_Revise as revise
 from M02_MasterTemplete.DataFlow import M02_DF_Compute as dc
 from M02_MasterTemplete.DataFlow import M02_DF_Values as dv
 
@@ -375,8 +376,10 @@ def _bare(row: dict) -> dict:
     return {"끝수": None, **kept, "입력": inputs, "출처": row.get("출처") or "자체"}
 
 
-def save(batch: list[dict]) -> dict:
-    """`/save` — 흐름 줄은 검사 · 다시 셈 · 새 줄은 자체 GX · 그 밖은 `Store.save` 그대로."""
+def save(batch: list[dict], confirmed: bool = False) -> dict:
+    """`/save` — 흐름 줄은 검사 · 다시 셈 · 새 줄은 자체 GX · 그 밖은 `Store.save` 그대로 ·
+    로직 정본 줄 고침은 `confirmed`(「원문 개정 반영」) 없으면 409(`Store_Revise` · 713-1)."""
+    revise.guard(batch, confirmed)
     warns, fresh = [], False
     for part in batch:
         for ch in part.get("changes") or []:
diff --git a/M01_MasterData/M01_MasterData_Store_Revise.py b/M01_MasterData/M01_MasterData_Store_Revise.py
new file mode 100644
index 000000000..2d28fba21
--- /dev/null
+++ b/M01_MasterData/M01_MasterData_Store_Revise.py
@@ -0,0 +1,81 @@
+"""M01 로직 정본 개정 확인 (PLAN 713-1 · 요구서 내역12 4장 10 · 17).
+
+- 로직 정본 파일(`로직_*.json` · 자체 `로직_자체.json` 뺌) 줄을 실제로 바꾸는 `/save`(흐름 저장 ·
+  지우기 포함)는 「원문 개정 반영」 확인 값(`개정확인`)이 있어야 함 — 없으면 409 + 까닭.
+- 요소 파일(인력 · 재료 · 표 …) · 자체 로직 · 같은 줄 그대로 다시 보냄은 대상 밖.
+- 줄 바탕 지문(`row_print`) = 계산 칸만 정렬 JSON(수는 Decimal 정규 글) sha256 앞 16 자 —
+  M02 덮개가 담아 두고 「M01 개정 — 확인」 배지를 띄울 값.
+- 판 칸 · 옛 줄 사본은 안 둠 — 정본 이력은 git.
+"""
+
+from __future__ import annotations
+
+import hashlib
+import json
+from decimal import Decimal
+
+from M01_MasterData import M01_MasterData_Store as store
+
+OWN = "로직_자체.json"
+PRINT_FIELDS = ("결과단위", "입력", "중간", "호표", "덧줄", "결과", "끝수", "흐름")
+WHY = "로직 정본(품셈 원문) 줄을 바꿈 — 「원문 개정 반영」 확인 뒤 저장(개정확인)"
+
+
+def is_canon(file: str) -> bool:
+    return file.startswith("로직_") and file.endswith(".json") and file != OWN
+
+
+def _norm(v):
+    """수는 int · float · Decimal 어느 꼴로 와도 같은 글(「10」 · 「10.0」 → 「10」)."""
+    if isinstance(v, bool) or v is None or isinstance(v, str):
+        return v
+    if isinstance(v, (int, float, Decimal)):
+        return format(Decimal(str(v)).normalize(), "f")
+    if isinstance(v, list):
+        return [_norm(x) for x in v]
+    if isinstance(v, dict):
+        return {k: _norm(x) for k, x in v.items()}
+    return str(v)
+
+
+def row_print(row: dict) -> str:
+    """줄 바탕 지문 — 계산 칸(`PRINT_FIELDS`)만 · 이름 · 별칭 · 비고 고침은 지문을 안 바꿈."""
+    calc = {k: _norm(row[k]) for k in PRINT_FIELDS if row.get(k) is not None}
+    raw = json.dumps(calc, ensure_ascii=False, sort_keys=True, separators=(",", ":"))
+    return hashlib.sha256(raw.encode("utf-8")).hexdigest()[:16]
+
+
+def changed(batch: list[dict]) -> list[dict]:
+    """정본 줄을 바꾸는 고침 — `[{file, key, op, 이름}]` · 같은 줄을 그대로 다시 보낸 edit 은 뺌."""
+    out = []
+    for part in batch:
+        file = str(part.get("file") or "")
+        if not is_canon(file):
+            continue
+        try:
+            rows = {str(r.get("키")): r for r in store.read(file)[0].get("줄") or []}
+        except store.StoreError:
+            continue  # 없는 파일 — `store.save` 가 404
+        for ch in part.get("changes") or []:
+            op, key, row = ch.get("op"), str(ch.get("key") or ""), ch.get("row")
+            old = rows.get(key)
+            if op == "edit" and old is not None and store._dec(row) == old:
+                continue
+            name = (row or {}).get("이름") if isinstance(row, dict) else None
+            out.append(
+                {
+                    "file": file,
+                    "key": key or None,
+                    "op": op,
+                    "이름": name or (old or {}).get("이름"),
+                }
+            )
+    return out
+
+
+def guard(batch: list[dict], confirmed: bool) -> None:
+    if confirmed:
+        return
+    hits = changed(batch)
+    if hits:
+        raise store.StoreError(409, {"개정": hits, "까닭": WHY})
diff --git a/M01_MasterData/M01_MasterData_UI_LogicLab.ts b/M01_MasterData/M01_MasterData_UI_LogicLab.ts
index f8cd1b47b..877fb2cf8 100644
--- a/M01_MasterData/M01_MasterData_UI_LogicLab.ts
+++ b/M01_MasterData/M01_MasterData_UI_LogicLab.ts
@@ -52,6 +52,7 @@ import {
 } from "./M01_MasterData_UI_LogicLab_Flow";
 import { askBasicInfo } from "./M01_MasterData_UI_LogicLab_Basic";
 import { buildLogicSide } from "./M01_MasterData_UI_LogicLab_Side";
+import { createViewPicker } from "./M01_MasterData_UI_LogicLab_View";
 import { buildHeadBar } from "./M01_MasterData_UI_Head";
 import { fetchSessionUser } from "../A06_Login/A06_Login_Api_Fetch";
 import type { CfLogic } from "../M02_MasterTemplete/DataFlow/M02_DF_Model";
@@ -130,6 +131,7 @@ export async function mountM01LogicLab(
   const editor = el("div", { className: "m01-logic__editor" });
   // 로직 상세 — 왼쪽 지금 내용 · 오른쪽 접는 패널 둘(흐름도 · 원문 · 하나만 열림 · 폭 공유)
   const panes = buildLogicSide(editor);
+  const views = createViewPicker(editor); // 보기 고르기 — 머리줄 [신규 로직] 왼쪽
   const errors = el("div", {
     className: "ui-banner ui-banner--danger m01-logic__reasons",
     attrs: { hidden: "" },
@@ -236,7 +238,7 @@ export async function mountM01LogicLab(
     list.root.hidden = !listing || !loaded;
     waiting.hidden = loaded;
     panes.root.hidden = !opened;
-    back.hidden = listing;
+    back.hidden = views.root.hidden = listing;
     if (!opened) return;
     if (!opened.row) {
       editor.replaceChildren(createEmpty({ text: `● ${tx("List_Deleted")}`, small: true }));
@@ -582,6 +584,7 @@ export async function mountM01LogicLab(
     title: tx("Title"),
     status: [pending],
     buttons: [
+      views.root,
       createButton({ label: tf("New"), variant: "filled", onClick: () => void onNew() }),
       copyButton,
       createButton({ label: tx("Bar_Delete"), variant: "danger", onClick: () => void onDelete() }),
diff --git a/M01_MasterData/M01_MasterData_UI_LogicLab_Detail.ts b/M01_MasterData/M01_MasterData_UI_LogicLab_Detail.ts
index 023fc34d0..dac172596 100644
--- a/M01_MasterData/M01_MasterData_UI_LogicLab_Detail.ts
+++ b/M01_MasterData/M01_MasterData_UI_LogicLab_Detail.ts
@@ -37,6 +37,8 @@ import { tl, type LabTextKey } from "./M01_MasterData_UI_LogicLab_Text";
 import "./M01_MasterData_UI_LogicLab_Style.css";
 import "./M01_MasterData_UI_LogicLab_Pill.css";
 import { createBadge } from "@ui/ui_template_badge";
+import { createEmpty } from "@ui/ui_template_empty";
+import { block, nowInputs } from "./M01_MasterData_UI_LogicLab_View";
 
 /** 서버 조각(`/text` 줄의 `조각`) → 수량 칸 조각 — 요소·표·로직은 알약(글 = 조각 글) · 나머지는 글자 */
 function toFragments(pieces: TextPiece[], ctx: DetailContext): Fragment[] {
@@ -142,7 +144,7 @@ const section = (title: string, body: HTMLElement[], hint = ""): HTMLElement =>
     ],
   });
 
-function infoBox(ctx: DetailContext): HTMLElement {
+function infoBox(ctx: DetailContext): HTMLElement[] {
   const row = ctx.row;
   const own = isOwnLogic(row);
   const field = (label: string, key: "이름" | "원문번호" | "결과단위" | "출처"): HTMLElement => {
@@ -189,32 +191,46 @@ function infoBox(ctx: DetailContext): HTMLElement {
         }),
       ]
     : [];
-  return section(tl("Info_Title"), [
-    el("p", {
-      className: "ui-text ui-text--muted",
-      text: tl(own ? "Info_Own" : ctx.admin ? "Info_Base" : "Info_ReadOnly"),
-    }),
-    ...reasons,
-    el("div", {
-      className: "m01lab__info",
-      children: [
-        cell(tx("Head_File"), ctx.file),
-        cell(tx("Head_Key"), row.키),
-        field(tx("Head_Number"), "원문번호"),
-        field(tx("Head_Name"), "이름"),
-        field(tx("Head_Unit"), "결과단위"),
-        field(tx("Head_Source"), "출처"),
-        cell(tx("Head_Owner"), row.소유 ?? ""),
-        el("label", {
-          className: "m01lab__cell m01lab__cell--wide",
-          children: [
-            el("span", { className: "ui-text ui-text--muted", text: tx("Head_Note") }),
-            note,
-          ],
-        }),
-      ],
-    }),
-  ]);
+  const grid = el("div", {
+    className: "m01lab__info",
+    children: [
+      cell(tx("Head_File"), ctx.file),
+      cell(tx("Head_Key"), row.키),
+      field(tx("Head_Number"), "원문번호"),
+      field(tx("Head_Name"), "이름"),
+      field(tx("Head_Unit"), "결과단위"),
+      field(tx("Head_Source"), "출처"),
+      cell(tx("Head_Owner"), row.소유 ?? ""),
+      el("label", {
+        className: "m01lab__cell m01lab__cell--wide",
+        children: [
+          el("span", { className: "ui-text ui-text--muted", text: tx("Head_Note") }),
+          note,
+        ],
+      }),
+    ],
+  });
+  // 늘 맨 위 접힌 한 줄 — 펼침은 이 로직 안에서 기억(다시 그려도) · 막힘 까닭은 접어도 보임
+  const head = [row.키, row.원문번호, row.이름, row.결과단위].filter(Boolean).join(" · ");
+  const fold = el("details", {
+    className: "m01lab__box m01lab__infofold",
+    attrs: ctx.ownHost.dataset.info ? { open: "" } : {},
+    children: [
+      el("summary", {
+        children: [
+          el("strong", { text: tl("Info_Title") }),
+          el("span", { className: "ui-text ui-text--muted", text: head }),
+        ],
+      }),
+      el("p", {
+        className: "ui-text ui-text--muted",
+        text: tl(own ? "Info_Own" : ctx.admin ? "Info_Base" : "Info_ReadOnly"),
+      }),
+      grid,
+    ],
+  });
+  fold.addEventListener("toggle", () => (ctx.ownHost.dataset.info = fold.open ? "1" : ""));
+  return [fold, ...reasons];
 }
 
 /** 수량 칸 = 계산 답의 고른 수량(% 덧줄은 율) · 계산 전 「—」 */
@@ -453,10 +469,13 @@ function ownEditor(ctx: DetailContext): HTMLElement {
 function hoBox(ctx: DetailContext): HTMLElement {
   const money = !("결과" in ctx.row) && (ctx.row.결과단위 ?? "").startsWith("원");
   if (!money) {
-    return section(tl("Ho_Title"), [
-      el("p", { className: "ui-text ui-text--muted", text: tl("Not_Money") }),
-      el("pre", { className: "m01lab__expr", text: ctx.row.결과?.식 ?? "" }),
-    ]);
+    return block(
+      section(tl("Ho_Title"), [
+        el("p", { className: "ui-text ui-text--muted", text: tl("Not_Money") }),
+        el("pre", { className: "m01lab__expr", text: ctx.row.결과?.식 ?? "" }),
+      ]),
+      "ho",
+    );
   }
   const all = entries(ctx);
   const calculated = ctx.lines !== null;
@@ -479,7 +498,7 @@ function hoBox(ctx: DetailContext): HTMLElement {
   fold.addEventListener("toggle", () => (ctx.ownHost.dataset.fold = fold.open ? "1" : ""));
   const blocks = isOwnLogic(ctx.row) ? [ownEditor(ctx), fold, totalLine] : [...tables, totalLine];
   const hint = calculated ? tl("Click_Hint") : `${tl("Click_Hint")} · ${tl("Calc_First")}`;
-  return section(tl("Ho_Title"), blocks, hint);
+  return block(section(tl("Ho_Title"), [nowInputs(ctx.values), ...blocks], hint), "ho");
 }
 
 /** 상세 화면 넷을 `host` 에 쌓음 */
@@ -492,10 +511,14 @@ export function buildLabDetail(host: HTMLElement, ctx: DetailContext): void {
     active instanceof HTMLInputElement || active instanceof HTMLTextAreaElement
       ? { node: active, from: active.selectionStart, to: active.selectionEnd }
       : null;
+  // 보기 고르기(`_View.ts`) — 덩이마다 이름표 · 고른 덩이만 보임 · 시험 계산은 숨어도 그려 둠
   host.replaceChildren(
-    infoBox(ctx),
-    section(tl("Calc_Title"), [ctx.calcHost]),
-    ...(ctx.flowHost ? [ctx.flowHost] : [hoBox(ctx), section(tl("Formula_Title"), [formula])]),
+    ...infoBox(ctx),
+    block(section(tl("Calc_Title"), [ctx.calcHost]), "calc"),
+    block(section(tl("View_Est"), [createEmpty({ text: tl("View_Soon"), small: true })]), "est"),
+    ...(ctx.flowHost
+      ? [block(nowInputs(ctx.values), "ho"), ctx.flowHost]
+      : [hoBox(ctx), block(section(tl("Formula_Title"), [formula]), "formula")]),
   );
   const own = kept?.node.dataset.own; // 기본정보 칸은 새로 만들어지므로 이름표로 다시 찾음
   const back = own ? host.querySelector<HTMLInputElement>(`[data-own="${own}"]`) : kept?.node;
diff --git a/M01_MasterData/M01_MasterData_UI_LogicLab_FlowView.ts b/M01_MasterData/M01_MasterData_UI_LogicLab_FlowView.ts
index f4eb8eb86..16520184e 100644
--- a/M01_MasterData/M01_MasterData_UI_LogicLab_FlowView.ts
+++ b/M01_MasterData/M01_MasterData_UI_LogicLab_FlowView.ts
@@ -159,9 +159,11 @@ export function buildFlowView(
   try {
     ev = opts.result ?? evalLogic(lg, values, { logics: opts.logics });
   } catch (e) {
-    host.replaceChildren(
-      section(tf("Detail"), [el("p", { className: "ui-text ui-text--muted", text: String(e) })]),
-    );
+    const failed = section(tf("Detail"), [
+      el("p", { className: "ui-text ui-text--muted", text: String(e) }),
+    ]);
+    failed.dataset.block = "ho";
+    host.replaceChildren(failed);
     return;
   }
   const totalRound = totalRoundOf(lg, totalRoundNow());
@@ -196,5 +198,8 @@ export function buildFlowView(
     tf("Formula"),
     bodies.length ? bodies : [el("p", { className: "ui-text ui-text--muted", text: tf("NoFunc") })],
   );
+  // 보기 고르기 이름표(`LogicLab_View.ts`) — 고른 덩이만 보임
+  detail.dataset.block = "ho";
+  text.dataset.block = "formula";
   host.replaceChildren(detail, text);
 }
diff --git a/M01_MasterData/M01_MasterData_UI_LogicLab_Style.css b/M01_MasterData/M01_MasterData_UI_LogicLab_Style.css
index e9779d7e2..0a8e482bc 100644
--- a/M01_MasterData/M01_MasterData_UI_LogicLab_Style.css
+++ b/M01_MasterData/M01_MasterData_UI_LogicLab_Style.css
@@ -190,3 +190,28 @@
 .m01lab__pickrow.is-picked {
   font-weight: 600;
 }
+
+/* 보기 고르기(710-2 · `_View.ts`) — 그릇 data-view 와 다른 이름표 덩이는 숨김(시험 계산은 숨어도 돎) */
+.m01-logic__editor[data-view="ho"] [data-block]:not([data-block="ho"]),
+.m01-logic__editor[data-view="est"] [data-block]:not([data-block="est"]),
+.m01-logic__editor[data-view="calc"] [data-block]:not([data-block="calc"]),
+.m01-logic__editor[data-view="formula"] [data-block]:not([data-block="formula"]) {
+  display: none;
+}
+
+/* 기본정보 — 늘 맨 위 접힌 한 줄 */
+.m01lab__infofold > summary {
+  display: flex;
+  align-items: baseline;
+  gap: var(--spacing-8);
+  cursor: pointer;
+}
+
+.m01lab__infofold[open] > summary {
+  margin-bottom: var(--spacing-8);
+}
+
+/* 상세 머리 「지금 입력」 한 줄 */
+.m01lab__now {
+  margin: 0;
+}
diff --git a/M01_MasterData/M01_MasterData_UI_LogicLab_Text.ts b/M01_MasterData/M01_MasterData_UI_LogicLab_Text.ts
index 5baa2b5d1..1b977355b 100644
--- a/M01_MasterData/M01_MasterData_UI_LogicLab_Text.ts
+++ b/M01_MasterData/M01_MasterData_UI_LogicLab_Text.ts
@@ -28,6 +28,14 @@ const TEXT = {
   Formula_Title: ["텍스트 수식", "Text formula"],
   Formula_Slot: ["시험 계산을 누르면 식이 글로 나옴", "Run the trial calc to see the formula"],
   Calc_Title: ["시험 계산", "Trial calculation"],
+  View_Est: ["인력·재료·경비", "Labor·material·expense"],
+  View_Label: ["보기", "View"],
+  View_Soon: [
+    "준비 중 — 인력 · 재료 · 경비 묶음 보기",
+    "Coming soon — labor · material · expense view",
+  ],
+  Now_Inputs: ["지금 입력", "Current inputs"],
+  Now_None: ["없음", "none"],
   G_labor: ["인력", "Labor"],
   G_material: ["재료", "Material"],
   G_cost: ["경비", "Expense"],
diff --git a/M01_MasterData/M01_MasterData_UI_LogicLab_View.ts b/M01_MasterData/M01_MasterData_UI_LogicLab_View.ts
new file mode 100644
index 000000000..577eb6d07
--- /dev/null
+++ b/M01_MasterData/M01_MasterData_UI_LogicLab_View.ts
@@ -0,0 +1,50 @@
+/* =============================================================================
+ * M01_MasterData_UI_LogicLab_View.ts
+ * 「단가산출 로직」 상세 보기 고르기 — 머리줄 [신규 로직] 왼쪽 「분할 고르기 | 세로 나눔선」
+ *   보기 넷 = 단가산출 상세(기본) · 인력·재료·경비 · 시험 계산 · 텍스트 수식 — 고른 덩이만 보임
+ *   덩이 = `data-block` 이름표 · 숨김 = 그릇 `data-view` + CSS(`LogicLab_Style.css`) — 다시 그려도 고름 유지
+ *   시험 계산은 숨겨도 그려 둠(자동 계산이 숨은 칸에서도 돎) · 기본정보는 이름표 없음(늘 맨 위)
+ *   기억 = 이 화면 안에서만(로직을 바꿔도 유지 · 새로 들어오면 단가산출 상세)
+ * ========================================================================== */
+
+import { el } from "@ui/ui_template_elements";
+import { createSegment } from "@ui/ui_template_segment";
+import { createToolbar } from "@ui/ui_template_toolbar";
+import { tl } from "./M01_MasterData_UI_LogicLab_Text";
+
+export type LabView = "ho" | "est" | "calc" | "formula";
+
+/** 덩이에 보기 이름표를 붙여 돌려줌 */
+export const block = <T extends HTMLElement>(node: T, view: LabView): T => {
+  node.dataset.block = view;
+  return node;
+};
+
+/** 보기 고르기 — `host`(상세 그릇)에 `data-view` 를 둠 · `root` 는 머리줄에 놓음 */
+export function createViewPicker(host: HTMLElement): { root: HTMLElement } {
+  host.dataset.view = "ho";
+  const segment = createSegment({
+    options: [
+      { value: "ho", label: tl("Ho_Title") },
+      { value: "est", label: tl("View_Est") },
+      { value: "calc", label: tl("Calc_Title") },
+      { value: "formula", label: tl("Formula_Title") },
+    ],
+    value: "ho",
+    size: 32,
+    ariaLabel: tl("View_Label"),
+    onChange: (v) => (host.dataset.view = v),
+  });
+  return { root: createToolbar({ items: [segment.root, "divider"], label: tl("View_Label") }) };
+}
+
+/** 상세 머리 「지금 입력」 한 줄(읽기만) — 숨은 시험 계산 칸에 든 값 */
+export function nowInputs(values: Record<string, string>): HTMLElement {
+  const filled = Object.entries(values).filter(([, v]) => String(v ?? "").trim() !== "");
+  const text = filled.length ? filled.map(([k, v]) => `${k} ${v}`).join(" · ") : tl("Now_None");
+  return el("p", {
+    className: "ui-text ui-text--muted m01lab__now",
+    attrs: { "data-now": "" },
+    text: `${tl("Now_Inputs")} · ${text}`,
+  });
+}
diff --git a/M01_MasterData/M01_MasterData_UI_Logic_Calc.ts b/M01_MasterData/M01_MasterData_UI_Logic_Calc.ts
index 4aa40833c..6bfa49452 100644
--- a/M01_MasterData/M01_MasterData_UI_Logic_Calc.ts
+++ b/M01_MasterData/M01_MasterData_UI_Logic_Calc.ts
@@ -28,6 +28,7 @@ import { formatNumber } from "./M01_MasterData_UI_Logic_Edit";
 import { formatMoney } from "./M01_MasterData_UI_Logic_Money";
 import { safeReason, tx } from "./M01_MasterData_UI_Logic_Text";
 import { createBadge } from "@ui/ui_template_badge";
+import { createDivider } from "@ui/ui_template_divider";
 
 /** 고르기 값이 마스터 키(자재·기계·직종)면 이름으로 바꿔 보임 — 값 칸은 키 그대로 보냄 */
 const KEY_RE = /^[A-Z]{2}\d{6}$/;
@@ -67,6 +68,9 @@ export interface CalcContext {
   onText?: (answer: TextAnswer) => void;
 }
 
+const grid = (children: HTMLElement[]): HTMLElement =>
+  el("div", { className: "m01-logic__head", children });
+
 const SUMS = ["노무비", "재료비", "경비", "계"];
 
 /** 로직마다 자동값을 한 번만 받음(다시 그려도 안 부름) */
@@ -122,7 +126,7 @@ export function buildCalc(host: HTMLElement, ctx: CalcContext): void {
         control = box;
       }
       const label = spec.단위 ? `${name} (${spec.단위})` : name;
-      // 긴 이름 줄만 한 칸 다 씀 — 고르기 줄은 짧으면 그대로 2열에 맞춰 나란히
+      // 긴 이름 줄만 두 칸 차지 — 짧으면 4 열에 맞춰 나란히
       const wide = label.length > 10;
       return el("label", {
         className: `m01-logic__field${wide ? " m01-logic__field--wide" : ""}`,
@@ -196,8 +200,13 @@ export function buildCalc(host: HTMLElement, ctx: CalcContext): void {
   runButton.setAttribute("data-calc-run", "");
   host.replaceChildren(
     el("h3", { text: tx("Calc_Title") }),
+    // 옵션 고르기 · 자재 고르기 두 격자(기본 4 열) — 사이 수평 구분선(709-1 부품)
     ...(fields.length || materials.length
-      ? [el("div", { className: "m01-logic__head", children: [...fields, ...materials] })] // 요소 표가 쓰는 auto-fill 그리드 재사용 — 2열
+      ? [
+          ...(fields.length ? [grid(fields)] : []),
+          ...(fields.length && materials.length ? [createDivider()] : []),
+          ...(materials.length ? [grid(materials)] : []),
+        ]
       : [el("p", { className: "ui-text ui-text--muted", text: tx("Calc_NoInputs") })]),
     runButton,
     out,
diff --git a/M01_MasterData/M01_MasterData_UI_Logic_CalcPick.ts b/M01_MasterData/M01_MasterData_UI_Logic_CalcPick.ts
index 227dc95df..1b608b92e 100644
--- a/M01_MasterData/M01_MasterData_UI_Logic_CalcPick.ts
+++ b/M01_MasterData/M01_MasterData_UI_Logic_CalcPick.ts
@@ -1,6 +1,6 @@
 /* =============================================================================
  * M01_MasterData_UI_Logic_CalcPick.ts
- * 시험 계산의 재료 · 기계 고르기 — 재료 줄마다 「잡힌 품목 + 품목 고르기」 · 기계 입력은 단추 하나
+ * 시험 계산의 재료 · 기계 고르기 — 재료 칸마다 잡힌 품목 이름(누르면 고르기) · 기계 입력은 단추 하나
  * 누르면 마스터 표 모달(`PickTable`) · 고른 재료는 `고름`(호표 줄 차례 → 키)에 실어 다시 계산 · 저장 안 함
  * ========================================================================== */
 
@@ -49,10 +49,11 @@ const isMachineInput = (spec: LogicInput): boolean =>
 const pickButton = (label: string, onClick: () => void): HTMLButtonElement =>
   createButton({ label, variant: "ghost", onClick });
 
-const line = (label: string, current: HTMLElement, button: HTMLElement): HTMLElement =>
+/** 자재 칸 — 이름 + 잡힌 품목(누르면 고르기 모달) · 긴 이름은 두 칸 */
+const line = (label: string, current: HTMLElement): HTMLElement =>
   el("div", {
-    className: "m01-logic__field m01-logic__field--wide",
-    children: [el("span", { text: label }), el("div", { children: [current, button] })],
+    className: `m01-logic__field${label.length > 10 ? " m01-logic__field--wide" : ""}`,
+    children: [el("span", { text: label }), current],
   });
 
 /** 재료 줄마다 한 칸 — 지금 잡힌 품목 + 품목 고르기 */
@@ -80,12 +81,16 @@ export function materialRows(
       const seeds = [cond?.["검색어"], cond?.이름, cond?.상세구분, cond?.구분, label]
         .map(headWord)
         .filter((w, k, all) => w && all.indexOf(w) === k);
-      const current = el("span", {
-        className: "ui-text ui-text--muted",
-        text: `${nowName || tx("Mat_NoPrice")} `,
-        attrs: { "data-mat-idx": String(i), "data-ref": brief?.ref ?? "" },
+      // 잡힌 품목 이름 = 링크 단추 — 누르면 고르기 모달([품목 고르기] 단추 걷음)
+      const current = createButton({
+        label: nowName || tx("Mat_NoPrice"),
+        variant: "link",
+        onClick: () => pick(),
       });
-      const button = pickButton(tx("Pick_Item"), () =>
+      current.dataset.matIdx = String(i);
+      current.dataset.ref = brief?.ref ?? "";
+      current.title = tx("Pick_Item");
+      const pick = (): void =>
         openPickTable({
           kind: "재료",
           title: `${tx("Pick_MatTitle")} · ${label}`,
@@ -94,12 +99,11 @@ export function materialRows(
           isCurrent: (r) => String(r["키"]) === (mine.get(i)?.ref ?? current.dataset.ref),
           onPick: (r) => {
             mine.set(i, { ref: String(r["키"]), label: nameOf(r) });
-            current.textContent = `${nameOf(r)} `;
+            current.textContent = nameOf(r);
             again();
           },
-        }),
-      );
-      return line(`${label}${item.규격 ? ` ${item.규격}` : ""}`, current, button);
+        });
+      return line(`${label}${item.규격 ? ` ${item.규격}` : ""}`, current);
     });
 }
 
@@ -115,7 +119,7 @@ export function showItems(
     const item = lines[i]?.품목;
     if (!item || mine.has(i)) return;
     span.dataset.ref = item.키;
-    span.textContent = `${`${item.이름 ?? ""} ${item.규격 ?? ""}`.trim() || item.키} `;
+    span.textContent = `${item.이름 ?? ""} ${item.규격 ?? ""}`.trim() || item.키;
   });
 }
 
diff --git a/M01_MasterData/M01_MasterData_UI_Logic_Style.css b/M01_MasterData/M01_MasterData_UI_Logic_Style.css
index 5d5a9e7ef..287baba33 100644
--- a/M01_MasterData/M01_MasterData_UI_Logic_Style.css
+++ b/M01_MasterData/M01_MasterData_UI_Logic_Style.css
@@ -73,11 +73,24 @@
   gap: var(--spacing-8);
 }
 
-/* 시험 계산 입력만 2열 고정 — 요소 표 쪽(auto-fill)은 그대로 둠
+/* 시험 계산 입력만 4열 고정(옵션 · 자재 격자 둘) — 요소 표 쪽(auto-fill)은 그대로 둠 · 긴 이름 칸은 두 칸
    실제 그릇은 LogicLab 이 씌우는 `.m01lab__calc`(`.m01-logic__calc` 는 옛 테스트 컨테이너 몫이라 안 걸림) */
 .m01lab__calc .m01-logic__head,
 .m01-logic__calc .m01-logic__head {
-  grid-template-columns: repeat(2, 1fr);
+  grid-template-columns: repeat(4, minmax(0, 1fr));
+}
+
+.m01lab__calc .m01-logic__field--wide {
+  grid-column: span 2;
+}
+
+/* 자재 칸 잡힌 품목 링크 — 칸 폭 안에서 왼쪽 맞춤 · 넘치면 말줄임 */
+.m01lab__calc .m01-logic__field > .ui-btn--link {
+  justify-content: flex-start;
+  max-width: 100%;
+  overflow: hidden;
+  text-overflow: ellipsis;
+  white-space: nowrap;
 }
 
 .m01-logic__field {
diff --git a/resources/tester/test_208_1_logic_alias.py b/resources/tester/test_208_1_logic_alias.py
index bf5ac9e66..c06cfe8f0 100644
--- a/resources/tester/test_208_1_logic_alias.py
+++ b/resources/tester/test_208_1_logic_alias.py
@@ -118,7 +118,8 @@ def _save(client: TestClient, row: dict) -> None:
         "version": one["version"],
         "changes": [{"op": "edit", "key": LOGIC_KEY, "row": row}],
     }
-    res = client.post("/api/m01/save", json={"files": [part]})
+    body = {"files": [part], "개정확인": True}  # 정본 줄 고침 = 개정 확인(713-1)
+    res = client.post("/api/m01/save", json=body)
     assert res.status_code == 200, res.text
 
 
diff --git a/resources/tester/test_713_1_revise.py b/resources/tester/test_713_1_revise.py
new file mode 100644
index 000000000..a802663b6
--- /dev/null
+++ b/resources/tester/test_713_1_revise.py
@@ -0,0 +1,103 @@
+"""713-1 지킴 — 로직 정본 줄 고침 · 지우기 · 더하기는 「원문 개정 반영」 확인(`개정확인`) 없이는 409 ·
+요소 · 같은 줄 다시 보냄은 그대로 · 줄 바탕 지문(`Store_Revise.row_print`). 임시 사본 폴더만 씀."""
+
+from __future__ import annotations
+
+import shutil
+from decimal import Decimal
+from pathlib import Path
+
+import pytest
+from fastapi import FastAPI
+from fastapi.testclient import TestClient
+
+from M01_MasterData import M01_MasterData_Router as router_module
+from M01_MasterData import M01_MasterData_Store as store
+from M01_MasterData import M01_MasterData_Store_Revise as revise
+
+REAL = store.FOLDER
+KEY = "GC000091"  # 공통 3-3-1 암발파 — 로직_건설품셈_03장_토공사.json
+
+
+@pytest.fixture(scope="module")
+def client(tmp_path_factory) -> TestClient:
+    folder = tmp_path_factory.mktemp("m01_revise")
+    for path in REAL.glob("*.json"):
+        if not path.name.startswith("_") or path.name == store.mk.BOOK.name:
+            shutil.copy(path, folder / path.name)
+    patch = pytest.MonkeyPatch()
+    patch.setattr(store, "FOLDER", folder)
+    app = FastAPI()
+    app.include_router(router_module.router)
+    yield TestClient(app)
+    patch.undo()
+
+
+def _part(client: TestClient, op: str, row: dict | None = None, key: str | None = KEY) -> dict:
+    one = client.get("/api/m01/logic", params={"key": KEY}).json()
+    return {
+        "file": one["file"],
+        "version": one["version"],
+        "changes": [{"op": op, "key": key, "row": row}],
+    }
+
+
+def _bytes(client: TestClient) -> bytes:
+    return (
+        store.FOLDER / client.get("/api/m01/logic", params={"key": KEY}).json()["file"]
+    ).read_bytes()
+
+
+def test_정본_고침_지움_더함_확인_없으면_409(client: TestClient) -> None:
+    base = client.get("/api/m01/logic", params={"key": KEY}).json()["logic"]
+    before = _bytes(client)
+    for op, row, key in (
+        ("edit", {**base, "비고": "개정 시험"}, KEY),
+        ("delete", None, KEY),
+        ("add", {k: v for k, v in base.items() if k != "키"}, None),
+    ):
+        res = client.post("/api/m01/save", json={"files": [_part(client, op, row, key)]})
+        assert res.status_code == 409, (op, res.text)
+        got = res.json()["detail"]
+        assert got["개정"][0]["op"] == op and "원문 개정 반영" in got["까닭"]
+        assert _bytes(client) == before  # 확인 없이는 한 바이트도 안 바뀜
+
+
+def test_같은_줄_다시_보냄은_그대로(client: TestClient) -> None:
+    base = client.get("/api/m01/logic", params={"key": KEY}).json()["logic"]
+    res = client.post("/api/m01/save", json={"files": [_part(client, "edit", base)]})
+    assert res.status_code == 200, res.text
+
+
+def test_확인하면_저장_지문은_계산_칸만(client: TestClient) -> None:
+    one = client.get("/api/m01/logic", params={"key": KEY}).json()
+    base, print0 = one["logic"], one["지문"]
+    assert print0 == revise.row_print(base)
+    body = {"files": [_part(client, "edit", {**base, "비고": "개정 시험"})], "개정확인": True}
+    assert client.post("/api/m01/save", json=body).status_code == 200
+    again = client.get("/api/m01/logic", params={"key": KEY}).json()
+    assert again["logic"]["비고"] == "개정 시험" and again["지문"] == print0  # 비고 = 지문 밖
+    hop = [dict(x) for x in base["호표"]]
+    hop[0]["수량"] = f"({hop[0]['수량']}) * 2"
+    body = {"files": [_part(client, "edit", {**again["logic"], "호표": hop})], "개정확인": True}
+    assert client.post("/api/m01/save", json=body).status_code == 200, "계산 칸 고침"
+    assert client.get("/api/m01/logic", params={"key": KEY}).json()["지문"] != print0
+
+
+def test_요소_파일은_대상_밖(client: TestClient) -> None:
+    rows = client.get("/api/m01/rows", params={"file": "인력.json", "size": 1}).json()
+    row = {**rows["rows"][0], "비고": "요소 시험"}
+    part = {
+        "file": "인력.json",
+        "version": rows["version"],
+        "changes": [{"op": "edit", "key": row["키"], "row": row}],
+    }
+    assert client.post("/api/m01/save", json={"files": [part]}).status_code == 200
+
+
+def test_지문_수_꼴_같음() -> None:
+    a = {"이름": "가", "호표": [{"수량": Decimal("10.0")}], "끝수": 1}
+    b = {"이름": "나", "호표": [{"수량": 10}], "끝수": 1.0, "별칭": "x"}
+    assert revise.row_print(a) == revise.row_print(b)
+    assert revise.is_canon("로직_산림품셈_09장_토공.json")
+    assert not revise.is_canon("로직_자체.json") and not revise.is_canon("인력.json")
diff --git a/resources/tester/test_m01_api.py b/resources/tester/test_m01_api.py
index de50867eb..563ecb494 100644
--- a/resources/tester/test_m01_api.py
+++ b/resources/tester/test_m01_api.py
@@ -231,7 +231,7 @@ def test_더함_지움_로직_파일도_같은_길(client: TestClient) -> None:
     one = _get(client, "/api/m01/logic", key=LOGIC_KEY)
     copy = {**one["logic"], "키": "", "원문번호": LOGIC_NUM}
     add = {"file": one["file"], "version": one["version"], "changes": [{"op": "add", "row": copy}]}
-    res = client.post("/api/m01/save", json={"files": [add]})
+    res = client.post("/api/m01/save", json={"files": [add], "개정확인": True})  # 713-1
     assert res.status_code == 200, res.text
     book = json.loads((store.FOLDER / store.mk.BOOK.name).read_text(encoding="utf-8"))
     new = f"GC{book['다음']['GC'] - 1:06d}"  # 대장의 다음 번호를 받음
@@ -242,7 +242,8 @@ def test_더함_지움_로직_파일도_같은_길(client: TestClient) -> None:
         "version": res.json()["files"][0]["version"],
         "changes": [{"op": "delete", "key": new}],
     }
-    assert client.post("/api/m01/save", json={"files": [drop]}).status_code == 200
+    body = {"files": [drop], "개정확인": True}
+    assert client.post("/api/m01/save", json=body).status_code == 200
     assert client.get("/api/m01/logic", params={"key": new}).status_code == 404
 
 
@@ -322,6 +323,7 @@ def test_저장은_고친_줄만_바꿈(client: TestClient) -> None:
     edited = {**one["logic"], "비고": "고침"}
     change = {"op": "edit", "key": LOGIC_KEY, "row": edited}
     body = {"files": [{"file": one["file"], "version": one["version"], "changes": [change]}]}
+    body["개정확인"] = True  # 정본 줄 고침 = 개정 확인(713-1)
     assert client.post("/api/m01/save", json=body).status_code == 200
     new = path.read_text(encoding="utf-8")
     at = old.index(f'"키": "{LOGIC_KEY}"')
diff --git a/resources/tester/test_m01_cache.py b/resources/tester/test_m01_cache.py
index 64f3e6f14..db8a107c8 100644
--- a/resources/tester/test_m01_cache.py
+++ b/resources/tester/test_m01_cache.py
@@ -94,7 +94,8 @@ def test_로직을_저장하면_목록에_바로_비친다(client: TestClient) -
                     "version": one["version"],
                     "changes": [{"op": "edit", "key": CALLER, "row": row}],
                 }
-            ]
+            ],
+            "개정확인": True,  # 정본 줄 고침 = 개정 확인(713-1)
         },
     )
     assert res.status_code == 200, res.text
@@ -128,7 +129,8 @@ def _save(client: TestClient, key: str, spoil) -> object:
                     "version": one["version"],
                     "changes": [{"op": "edit", "key": key, "row": row}],
                 }
-            ]
+            ],
+            "개정확인": True,  # 정본 줄 고침 = 개정 확인(713-1)
         },
     )
 
@@ -200,7 +202,10 @@ def _save_file(client: TestClient, file: str, changes: list[dict]):
     """정본 파일을 저장 길로 고침 — 요소·표 줄도 같은 길."""
     return client.post(
         "/api/m01/save",
-        json={"files": [{"file": file, "version": store.read(file)[1], "changes": changes}]},
+        json={
+            "files": [{"file": file, "version": store.read(file)[1], "changes": changes}],
+            "개정확인": True,  # 로직 정본 파일이면 개정 확인(713-1) · 요소 파일엔 상관없음
+        },
     )
 
 
diff --git a/resources/tester/test_m01_logic_flow_project.py b/resources/tester/test_m01_logic_flow_project.py
index 5a4e75951..6dcdbc4f8 100644
--- a/resources/tester/test_m01_logic_flow_project.py
+++ b/resources/tester/test_m01_logic_flow_project.py
@@ -75,7 +75,8 @@ def test_조합에_담은_로직을_흐름으로_바꿔도_같음(tmp_path: Path
         flow.pop("key", None)
         change = {"op": "edit", "key": key, "row": {**got["logic"], "흐름": flow}}
         sflow.save(
-            [store._dec({"file": got["file"], "version": got["version"], "changes": [change]})]
+            [store._dec({"file": got["file"], "version": got["version"], "changes": [change]})],
+            True,  # 정본 줄 고침 = 개정 확인(713-1)
         )
     for key in KEYS:
         row = store.logic(key)["logic"]
diff --git a/resources/tester/test_m01_logic_flow_save.py b/resources/tester/test_m01_logic_flow_save.py
index 24571235e..cef39c2c7 100644
--- a/resources/tester/test_m01_logic_flow_save.py
+++ b/resources/tester/test_m01_logic_flow_save.py
@@ -100,7 +100,8 @@ def _save_flow(client: TestClient, key: str, flow: dict, want: int = 200) -> dic
     row = {**got["logic"], "흐름": flow}
     part = {"file": got["file"], "version": got["version"],
             "changes": [{"op": "edit", "key": key, "row": row}]}  # fmt: skip
-    return _post(client, "/api/m01/save", {"files": [part]}, want)
+    body = {"files": [part], "개정확인": True}  # 정본 줄 고침 = 개정 확인(713-1)
+    return _post(client, "/api/m01/save", body, want)
 
 
 def test_흐름_저장_다시_셈_다시_읽기(client: TestClient, folder: Path) -> None: