diff --git a/B06_Section/B06_Section_UI_Adjust_Dock.ts b/B06_Section/B06_Section_UI_Adjust_Dock.ts
index 28fcf846a..3815cd3c4 100644
--- a/B06_Section/B06_Section_UI_Adjust_Dock.ts
+++ b/B06_Section/B06_Section_UI_Adjust_Dock.ts
@@ -154,11 +154,14 @@ function relocateSideRows(panelRoot: HTMLElement, scroll = true): void {
   clearSideSlots();
   const side = panelRoot.dataset.side;
   // 세월교 · BOX 본체 = 옮길 줄 없이 그 명세의 본체 상자만 강조(66-1) — 날개벽 칸이 든 명세 폼에서 찾음
-  if (side === "body") {
-    const body = sideSlots?.wingInlet
-      .closest(".b05-structure__spec")
+  // 관 = 배관 명세 폼의 「관」 상자만 강조(118-1)
+  if (side === "body" || side === "pipe") {
+    const body = (side === "pipe" ? sideSlots?.inlet : sideSlots?.wingInlet)
+      ?.closest(".b05-structure__spec")
       ?.querySelector<HTMLElement>(
-        'fieldset[data-spec-container="ford"], fieldset[data-spec-container="body"]',
+        side === "pipe"
+          ? 'fieldset[data-spec-container="pipe"]'
+          : 'fieldset[data-spec-container="ford"], fieldset[data-spec-container="body"]',
       );
     if (!body || body.closest("[hidden]")) return;
     setGroupLabel(body, "");
diff --git a/B06_Section/B06_Section_UI_Cross_Culvert.ts b/B06_Section/B06_Section_UI_Cross_Culvert.ts
index 35bbbbbe0..874f65baf 100644
--- a/B06_Section/B06_Section_UI_Cross_Culvert.ts
+++ b/B06_Section/B06_Section_UI_Cross_Culvert.ts
@@ -56,9 +56,11 @@ function polygon(
 // "own" = 배관과 무관한 **독립 기슭막이**(구조물 정본 D군). 조정창·조작값 저장은
 // 배관 벽과 같은 체계를 그대로 쓴다(2026-08-28 사용자: 배관측점처럼 이동).
 export type RevetKey = "inlet" | "outlet" | "own" | `extra${number}` | `bextra${number}`;
+/** 고름 전용 키 — 벽 키 + 관(118-1 · 조정창 없음 · 강조만). 조정 함수에는 `RevetKey` 만. */
+export type RevetPick = RevetKey | "pipe";
 
 /** 벽 강조를 카드 재생성 없이 갈아 끼우는 setter. */
-export type RevetHighlightSetter = (key: RevetKey | null) => void;
+export type RevetHighlightSetter = (key: RevetPick | null) => void;
 
 /**
  * 배수관 세트 오버레이 — computeCulvertLayout 결과를 그린다.
@@ -72,7 +74,7 @@ export function appendCulvertOverlay(
   layout: CulvertLayout,
   x: (offset: number) => number,
   toDisplayY: (elevation: number) => number,
-  onSelectRevet?: (key: RevetKey) => void,
+  onSelectRevet?: (key: RevetPick) => void,
   /** 관을 그리지 않는다 — 관은 한 측점에만 있고, 연장이 넘어온 옆 측점 카드에는
    *  기슭막이만 링크로 보인다(2026-08-24 사용자). */
   hidePipe?: boolean,
@@ -311,6 +313,8 @@ export function appendCulvertOverlay(
       elevation: corner.top.elevation + normal.elevation * delta,
     },
   });
+  const pipeShapes: SVGPolygonElement[] = []; // 관 두 겹 — 관 고름 강조(118-1)
+  let pipeHitPoints: Array<[number, number]> = [];
   const pipeLayers = hidePipe
     ? []
     : ([
@@ -320,18 +324,16 @@ export function appendCulvertOverlay(
   for (const [delta, cls] of pipeLayers) {
     const a = shifted(inletFinal, delta);
     const b = shifted(outletFinal, delta);
-    layer.append(
-      polygon(
-        [
-          [x(a.bottom.offset), toDisplayY(a.bottom.elevation)],
-          [x(b.bottom.offset), toDisplayY(b.bottom.elevation)],
-          [x(b.top.offset), toDisplayY(b.top.elevation)],
-          [x(a.top.offset), toDisplayY(a.top.elevation)],
-        ],
-        cls,
-        tip,
-      ),
-    );
+    const points: Array<[number, number]> = [
+      [x(a.bottom.offset), toDisplayY(a.bottom.elevation)],
+      [x(b.bottom.offset), toDisplayY(b.bottom.elevation)],
+      [x(b.top.offset), toDisplayY(b.top.elevation)],
+      [x(a.top.offset), toDisplayY(a.top.elevation)],
+    ];
+    if (!pipeHitPoints.length) pipeHitPoints = points; // 외경 = 판정면
+    const shape = polygon(points, cls, tip);
+    pipeShapes.push(shape);
+    layer.append(shape);
   }
   drawOutletFill();
 
@@ -340,6 +342,15 @@ export function appendCulvertOverlay(
   // 먼저 먹는다(2026-08-21 화면 확인). 그리기 순서(벽 → 관 → 보호공)는 그대로 두고
   // 판정면만 위로 올린다. 관 자체의 툴팁은 벽 밖 구간에서 그대로 뜬다.
   if (onSelectRevet) {
+    // 관 판정면은 벽 판정면 **아래** — 겹친 자리는 벽이 이김(118-1).
+    if (pipeHitPoints.length) {
+      const hit = polygon(pipeHitPoints, "b06-chart__culvert-revet-hit", `${tip} — 관 선택`);
+      hit.addEventListener("click", (event) => {
+        event.stopPropagation();
+        onSelectRevet("pipe");
+      });
+      layer.append(hit);
+    }
     for (const { wall, key: wallKey } of wallsInOrder) {
       const hit = polygon(
         wall.points.map((p) => [x(p.offset), toDisplayY(p.elevation)] as [number, number]),
@@ -375,5 +386,6 @@ export function appendCulvertOverlay(
     for (const [role, shape] of revetShapes) shape.classList.toggle("is-active", role === key);
     // 유입이 집수정이면 부재 전체를 함께 강조한다(2026-08-22 사용자 ③).
     for (const shape of basinShapes) shape.classList.toggle("is-active", key === "inlet");
+    for (const shape of pipeShapes) shape.classList.toggle("is-active", key === "pipe");
   };
 }
diff --git a/B06_Section/B06_Section_UI_Cross_Culvert_Wire.ts b/B06_Section/B06_Section_UI_Cross_Culvert_Wire.ts
index f22cb5c36..4d1bf1d74 100644
--- a/B06_Section/B06_Section_UI_Cross_Culvert_Wire.ts
+++ b/B06_Section/B06_Section_UI_Cross_Culvert_Wire.ts
@@ -7,7 +7,12 @@
 import { bodyAbsolute } from "./B06_Section_UI_Cross_Body_Guard";
 import type { CrossSection, SectionSample } from "./B06_Section_Api_Fetch";
 import { computeCulvertLayout } from "./B06_Section_UI_Cross_Culvert";
-import type { CulvertLayout, InletStructureChoice, RevetKey } from "./B06_Section_UI_Cross_Culvert";
+import type {
+  CulvertLayout,
+  InletStructureChoice,
+  RevetKey,
+  RevetPick,
+} from "./B06_Section_UI_Cross_Culvert";
 import type { BasinAdjust, CulvertDesignTrim } from "./B06_Section_UI_Cross_Culvert_Types";
 import {
   basinSpanOfSpec,
@@ -31,12 +36,12 @@ export interface RevetOffsetControl {
   adjustFor: (section: CrossSection, role: RevetKey) => WallAdjust;
   /** 이 측점이 **실제로 손댄** 값만 — 없으면 null(자동·상속과 구분해야 한다). */
   storedAdjustFor: (section: CrossSection, role: RevetKey) => WallAdjust | null;
-  selectedFor: (section: CrossSection) => RevetKey | null;
+  selectedFor: (section: CrossSection) => RevetPick | null;
   /** 이 카드에서 **강조**할 벽 — 연동으로 이어진 옆 측점이 고른 벽도 켠다
    *  (2026-08-30 사용자: 한 기슭막이는 그 연장 안 모든 횡단도에서 같이 강조된다).
    *  조정창은 고른 카드 하나에만 뜨므로 `selectedFor`와 따로 둔다. */
-  highlightFor: (section: CrossSection) => RevetKey | null;
-  select: (chainageM: number, key: RevetKey | null) => void;
+  highlightFor: (section: CrossSection) => RevetPick | null;
+  select: (chainageM: number, key: RevetPick | null) => void;
   /** 선택이 바뀌면 화면이 연동 카드 강조를 다시 칠한다 — 목록 쪽이 꽂는다. */
   onSelectionChange?: () => void;
   /** 기하가 실제로 적용한 조작값을 되받아 담는다(한계에 걸린 요청값을 잘라 낸다). */
@@ -382,7 +387,7 @@ export function restrictToSide(layout: CulvertLayout, side: string | undefined):
 export function computeCardCulvert(
   section: CrossSection,
   sourceSamples: SectionSample[],
-  activeRevet: RevetKey | null,
+  activeRevet: RevetPick | null,
   revetOffset?: RevetOffsetControl,
   inletStructure?: InletStructureControl,
   extraWalls?: ExtraWallControl,
diff --git a/B06_Section/B06_Section_UI_Cross_Structure_Panel.ts b/B06_Section/B06_Section_UI_Cross_Structure_Panel.ts
index 1bc6abb03..89460db24 100644
--- a/B06_Section/B06_Section_UI_Cross_Structure_Panel.ts
+++ b/B06_Section/B06_Section_UI_Cross_Structure_Panel.ts
@@ -14,7 +14,7 @@
  * 폼 칸에 옮겨 붙인다(`_Adjust_Dock`). 폼과 같은 값(형태 · 높이 · 길이 · 전 · 후)은 만들지 않는다.
  * ========================================================================== */
 
-import type { InletStructureChoice, RevetKey } from "./B06_Section_UI_Cross_Culvert";
+import type { InletStructureChoice, RevetKey, RevetPick } from "./B06_Section_UI_Cross_Culvert";
 import { REVET_FORMS } from "./B06_Section_UI_Cross_Culvert_Const";
 import type { BasinAdjust, WallAdjust } from "./B06_Section_UI_Cross_Culvert_Types";
 import type { SpanValues } from "./B06_Section_UI_Cross_Culvert_Wire";
@@ -97,7 +97,7 @@ export interface StructurePanelDeps {
 export interface StructurePanelHandle {
   root: HTMLElement;
   /** null이면 숨긴다. 값이 오면 그 구조물 기준으로 다시 그린다. */
-  show: (key: RevetKey | null) => void;
+  show: (key: RevetPick | null) => void;
 }
 
 /**
@@ -494,9 +494,12 @@ export function buildStructurePanel(
 
   return {
     root,
-    show: (key) => {
+    show: (pick) => {
+      // 관 = 조정창 없음 · 좌측 「관」 상자만 강조(118-1 · 세월교 본체 꼴)
+      const key = pick === "pipe" ? null : pick;
       current = key;
       root.classList.toggle("is-hidden", key === null);
+      root.dataset.side = pick === "pipe" ? "pipe" : "";
       document.removeEventListener("keydown", onArrowKey);
       drag.detach();
       if (!key) return;
diff --git a/B06_Section/B06_Section_UI_Cross_View.ts b/B06_Section/B06_Section_UI_Cross_View.ts
index c6f8a34f7..755d162fc 100644
--- a/B06_Section/B06_Section_UI_Cross_View.ts
+++ b/B06_Section/B06_Section_UI_Cross_View.ts
@@ -55,7 +55,7 @@ import { attachZoomPan, buildZoomControls, cardZoomStates } from "./B06_Section_
 import type { CrossWidthActions } from "./B06_Section_UI_Cross_View_Zoom";
 import type { CutSlopeControl } from "./B06_Section_UI_Cross_CutSlope";
 import { createCrossAxes, IDENTITY_VIEW } from "./B06_Section_UI_Cross_Axes";
-import type { RevetHighlightSetter, RevetKey } from "./B06_Section_UI_Cross_Culvert";
+import type { RevetHighlightSetter, RevetKey, RevetPick } from "./B06_Section_UI_Cross_Culvert";
 import { REVET_FORM_DEFAULT } from "./B06_Section_UI_Cross_Culvert_Const";
 import type { WallAdjust } from "./B06_Section_UI_Cross_Culvert_Types";
 import {
@@ -82,7 +82,7 @@ export interface CrossCardElement extends HTMLElement {
   applySelection?: (selected: boolean, areaKey: CrossAreaKey | null) => void;
   /** 벽 강조만 갈아 끼운다 — 연동으로 이어진 카드도 같이 켜진다(2026-08-30 사용자).
    *  카드를 다시 만들지 않으므로 줌·팬이 살아남는다. */
-  applyRevetHighlight?: (key: RevetKey | null) => void;
+  applyRevetHighlight?: (key: RevetPick | null) => void;
 }
 
 /**
@@ -180,10 +180,10 @@ export function createCrossSectionCard(
   let activeArea: CrossAreaKey | null = selected ? (initialAreaKey ?? null) : null;
   let setBandActive: AreaHighlightSetter = () => undefined;
   let setChipActive: AreaHighlightSetter = () => undefined;
-  let activeRevet: RevetKey | null = revetOffset?.selectedFor(section) ?? null;
+  let activeRevet: RevetPick | null = revetOffset?.selectedFor(section) ?? null;
   /** 이 카드에서 **강조**할 벽. 연동으로 이어진 옆 측점이 고른 벽도 켠다 —
    *  조정창(`activeRevet`)은 고른 카드 하나에만 뜬다(2026-08-30 사용자). */
-  let highlightRevet: RevetKey | null = revetOffset?.highlightFor(section) ?? activeRevet;
+  let highlightRevet: RevetPick | null = revetOffset?.highlightFor(section) ?? activeRevet;
   let setRevetActive: RevetHighlightSetter = () => undefined;
   let showRevetControl: (visible: boolean) => void = () => undefined;
   let culvertInletIsBasin = false; // 유입이 집수정인가 — 조정창 표시·제목 분기
@@ -222,7 +222,7 @@ export function createCrossSectionCard(
     },
     selectCard: () => onSelect(section.station_id),
   });
-  const toggleRevet = (key: RevetKey): void => {
+  const toggleRevet = (key: RevetPick): void => {
     const wasSelected = isSelected;
     activeRevet = activeRevet === key ? null : key;
     showRevetControl(activeRevet !== null);
@@ -654,7 +654,7 @@ export function createCrossSectionCard(
       extraState: () => culvertExtraState,
       basinExtraState: () => culvertBasinExtraState,
       activeRevet: () => activeRevet,
-      setActiveRevet: (key: RevetKey | null) => {
+      setActiveRevet: (key: RevetPick | null) => {
         activeRevet = key;
       },
       toggleRevet,
diff --git a/B06_Section/B06_Section_UI_Cross_View_Structure.ts b/B06_Section/B06_Section_UI_Cross_View_Structure.ts
index 067951139..d88057f65 100644
--- a/B06_Section/B06_Section_UI_Cross_View_Structure.ts
+++ b/B06_Section/B06_Section_UI_Cross_View_Structure.ts
@@ -6,7 +6,7 @@
  * ========================================================================== */
 
 import type { CrossSection } from "./B06_Section_Api_Fetch";
-import type { RevetKey } from "./B06_Section_UI_Cross_Culvert";
+import type { RevetKey, RevetPick } from "./B06_Section_UI_Cross_Culvert";
 import {
   FILL_SLOPE_RATIO_MIN,
   PIPE_WALL_DEFAULT_RUN_M,
@@ -81,9 +81,9 @@ export interface StructurePanelContext {
   inletOptions: () => { revetAllowed: boolean; basinLUAllowed: boolean };
   extraState: () => { canAdd: boolean; count: number };
   basinExtraState: () => { canAdd: boolean; count: number };
-  activeRevet: () => RevetKey | null;
-  setActiveRevet: (key: RevetKey | null) => void;
-  toggleRevet: (key: RevetKey) => void;
+  activeRevet: () => RevetPick | null;
+  setActiveRevet: (key: RevetPick | null) => void;
+  toggleRevet: (key: RevetPick) => void;
   /** 창 스크롤 자리를 기억할 카드 키(측점 id). */
   scrollKey: string;
 }
diff --git a/B06_Section/B06_Section_UI_Page_Station_Controls.ts b/B06_Section/B06_Section_UI_Page_Station_Controls.ts
index c75854fb8..fd3fc9e73 100644
--- a/B06_Section/B06_Section_UI_Page_Station_Controls.ts
+++ b/B06_Section/B06_Section_UI_Page_Station_Controls.ts
@@ -11,7 +11,7 @@ import type {
   SectionDetailResponse,
   StoredWallSpan,
 } from "./B06_Section_Api_Fetch";
-import type { InletStructureChoice, RevetKey } from "./B06_Section_UI_Cross_Culvert";
+import type { InletStructureChoice, RevetKey, RevetPick } from "./B06_Section_UI_Cross_Culvert";
 import { DEFAULT_BASIN_ADJUST, ZERO_ADJUST } from "./B06_Section_UI_Cross_Culvert_Types";
 import type { BasinAdjust, WallAdjust } from "./B06_Section_UI_Cross_Culvert_Types";
 import type {
@@ -180,7 +180,7 @@ export function createStationControls(deps: StationControlDeps): StationControls
   const revetShifts = revetSession.values;
   /** 지금 고른 벽 **하나** — 조정창이 뜬 측점(누가거리 키)과 벽 키(2026-08-30 개편:
    *  강조는 연동으로 이어진 카드 전부, 조정창은 고른 카드 하나). */
-  let revetSelection: { at: string; key: RevetKey } | null = null;
+  let revetSelection: { at: string; key: RevetPick } | null = null;
   const revetKey = (chainageM: number, role: RevetKey): string => `${chainageM.toFixed(2)}:${role}`;
 
   function loadRevetShifts(): void {
diff --git a/B06_Section/B06_Section_UI_Page_Structure_Pick.ts b/B06_Section/B06_Section_UI_Page_Structure_Pick.ts
index 79037c928..97698499b 100644
--- a/B06_Section/B06_Section_UI_Page_Structure_Pick.ts
+++ b/B06_Section/B06_Section_UI_Page_Structure_Pick.ts
@@ -15,7 +15,7 @@
  * ========================================================================== */
 
 import type { SectionDetailResponse } from "./B06_Section_Api_Fetch";
-import type { RevetKey } from "./B06_Section_UI_Cross_Culvert";
+import type { RevetPick } from "./B06_Section_UI_Cross_Culvert";
 import type { StructurePickHandoff } from "../B05_Profile/B05_Profile_UI_Structure_Pick_Session";
 import {
   coversChainage,
@@ -23,13 +23,13 @@ import {
   type SelectableStructure,
 } from "../A00_Common/design/design_selection";
 
-/** 기슭막이 조정창이 받는 부재키 — 집수정·배관·본체는 여기서 빠진다. */
-const REVET_KEYS = /^(inlet|outlet|own|extra\d+|bextra\d+)$/;
+/** 벽 고름이 받는 부재키 — 관은 강조만(118-1) · 집수정·본체는 여기서 빠진다. */
+const REVET_KEYS = /^(inlet|outlet|own|extra\d+|bextra\d+|pipe)$/;
 
 interface PickTargets {
   focusStation: (stationId: string) => void;
   refreshCard: (chainageM: number) => void;
-  revetSelect: (chainageM: number, key: RevetKey) => void;
+  revetSelect: (chainageM: number, key: RevetPick) => void;
   fordSelect: (chainageM: number, role: "inlet" | "outlet" | "body") => void;
   boxSelect: (chainageM: number, role: "left" | "right" | "body") => void;
 }
@@ -73,7 +73,7 @@ export function applyStructurePick(
       targets.boxSelect(target.chainage_m, key);
     } else {
       if (!REVET_KEYS.test(key)) return;
-      targets.revetSelect(target.chainage_m, key as RevetKey);
+      targets.revetSelect(target.chainage_m, key as RevetPick);
     }
     targets.refreshCard(target.chainage_m);
   });
diff --git a/B06_Section/B06_Section_UI_Page_Structures_Panel.ts b/B06_Section/B06_Section_UI_Page_Structures_Panel.ts
index 387a15a63..73332a1c9 100644
--- a/B06_Section/B06_Section_UI_Page_Structures_Panel.ts
+++ b/B06_Section/B06_Section_UI_Page_Structures_Panel.ts
@@ -55,7 +55,7 @@ import {
 } from "./B06_Section_UI_Adjust_Dock";
 import type { SectionDetailResponse } from "./B06_Section_Api_Fetch";
 import type { StationControls } from "./B06_Section_UI_Page_Station_Controls";
-import type { RevetKey } from "./B06_Section_UI_Cross_Culvert";
+import type { RevetPick } from "./B06_Section_UI_Cross_Culvert";
 import { withSpecDefaults } from "./B06_Section_UI_Page_Structures_Spec";
 
 const PIPE_ADD_GUIDE = "계곡 통과 시설을 넣고 빼려면 프로젝트를 먼저 여세요.";
@@ -616,9 +616,9 @@ export function wireStructureSelection(
   };
 
   // 관 상자 칸을 고치거나 고르면 그 부분을 고름 — 횡단에서 누른 것과 같은 길(54-30)
-  const keyOf = (box: HTMLElement): RevetKey | null => {
+  const keyOf = (box: HTMLElement): RevetPick | null => {
     const id = box.dataset.specContainer;
-    if (id === "inlet" || id === "outlet") return id;
+    if (id === "inlet" || id === "outlet" || id === "pipe") return id;
     return id === "soil_add" ? `extra${Number(box.dataset.specIndex)}` : null;
   };
   const pickBox = (box: HTMLElement): void => {
diff --git a/resources/tester/helper_118_pipe_pick.cjs b/resources/tester/helper_118_pipe_pick.cjs
new file mode 100644
index 000000000..40779c370
--- /dev/null
+++ b/resources/tester/helper_118_pipe_pick.cjs
@@ -0,0 +1,309 @@
+/* PLAN 118-1 단위검증 헬퍼 — B06 배관 횡단도 관 고름 · 강조 · 조정창 숨김 · 3D pipe 키.
+ * 화면 TS 를 그 자리에서 트랜스파일해 Node 로 돌림 · 결과 = 표준출력 JSON 한 벌.
+ * 입력 = `fixtures/b07_cross_overlay_sections.json` 배관 측점 85.052(관 Φ1.0). 짝 = `test_118_pipe_pick.py`.
+ */
+const fs = require("fs");
+const path = require("path");
+const ts = require(path.join(__dirname, "..", "..", "config", "node_modules", "typescript"));
+
+const ROOT = path.join(__dirname, "..", "..");
+const cache = new Map();
+let STUBS = {
+  "@ui/ui_template_toast": { showToast: () => undefined },
+  "@ui/ui_template_elements": { showToast: () => undefined },
+};
+
+// ── 화면 그릇 흉내 — 오버레이 · 조정창이 쓰는 만큼만 ─────────────────────────
+class FakeNode {
+  constructor(tag) {
+    this.tagName = String(tag).toUpperCase();
+    this.children = [];
+    this.attrs = {};
+    this.dataset = {};
+    this.listeners = {};
+    this._text = "";
+    this._classes = new Set();
+    const self = this;
+    this.classList = {
+      add: (...names) => names.forEach((n) => self._classes.add(n)),
+      remove: (...names) => names.forEach((n) => self._classes.delete(n)),
+      toggle: (name, force) => {
+        const on = force === undefined ? !self._classes.has(name) : !!force;
+        on ? self._classes.add(name) : self._classes.delete(name);
+        return on;
+      },
+      contains: (name) => self._classes.has(name),
+    };
+    this.style = { setProperty: () => {} };
+  }
+  set className(value) {
+    this._classes = new Set(String(value).split(/\s+/).filter(Boolean));
+  }
+  get className() {
+    return [...this._classes].join(" ");
+  }
+  set textContent(value) {
+    this._text = String(value);
+    this.children = [];
+  }
+  get textContent() {
+    return this._text + this.children.map((c) => c.textContent).join("");
+  }
+  append(...kids) {
+    kids.forEach((k) => this.children.push(k));
+  }
+  appendChild(kid) {
+    this.children.push(kid);
+    return kid;
+  }
+  replaceChildren(...kids) {
+    this.children = kids;
+  }
+  setAttribute(name, value) {
+    this.attrs[name] = String(value);
+    if (name === "class") this.className = value;
+  }
+  getAttribute(name) {
+    return name === "class" ? this.className : (this.attrs[name] ?? null);
+  }
+  addEventListener(type, fn) {
+    (this.listeners[type] ??= []).push(fn);
+  }
+  removeEventListener() {}
+  click() {
+    let stopped = false;
+    const event = { stopPropagation: () => (stopped = true), preventDefault: () => {} };
+    (this.listeners.click ?? []).forEach((fn) => fn(event));
+    return stopped;
+  }
+  querySelectorAll(selector) {
+    const found = [];
+    const walk = (node) =>
+      node.children.forEach((kid) => {
+        if (kid.classList && kid.classList.contains(selector.slice(1))) found.push(kid);
+        walk(kid);
+      });
+    walk(this);
+    return found;
+  }
+  querySelector(selector) {
+    return this.querySelectorAll(selector)[0] ?? null;
+  }
+  getClientRects() {
+    return [];
+  }
+}
+globalThis.document = {
+  createElement: (tag) => new FakeNode(tag),
+  createElementNS: (_ns, tag) => new FakeNode(tag),
+  createComment: () => new FakeNode("#comment"),
+  addEventListener: () => {},
+  removeEventListener: () => {},
+};
+globalThis.window = { addEventListener: () => {}, removeEventListener: () => {} };
+globalThis.requestAnimationFrame = (fn) => fn();
+
+function loadTs(file) {
+  const full = path.resolve(file);
+  if (cache.has(full)) return cache.get(full);
+  if (full.endsWith(".json")) {
+    const data = JSON.parse(fs.readFileSync(full, "utf8"));
+    cache.set(full, data);
+    return data;
+  }
+  const js = ts.transpileModule(fs.readFileSync(full, "utf8"), {
+    compilerOptions: {
+      module: ts.ModuleKind.CommonJS,
+      target: ts.ScriptTarget.ES2020,
+      esModuleInterop: true,
+    },
+  }).outputText;
+  const box = { exports: {} };
+  cache.set(full, box.exports);
+  const localRequire = (request) => {
+    if (STUBS[request]) return STUBS[request];
+    const alias = { "@util/": "common_util", "@ui/": "ui_template", "@config/": "config" };
+    for (const [prefix, dir] of Object.entries(alias))
+      if (request.startsWith(prefix))
+        return loadTs(resolve(path.join(ROOT, dir, request.slice(prefix.length))));
+    return loadTs(resolve(path.join(path.dirname(full), request)));
+  };
+  new Function("exports", "module", "require", js)(box.exports, box, localRequire);
+  cache.set(full, box.exports);
+  return box.exports;
+}
+const resolve = (base) =>
+  [base, `${base}.ts`, path.join(base, "index.ts")].find(
+    (p) => fs.existsSync(p) && fs.statSync(p).isFile(),
+  ) ?? `${base}.ts`;
+
+const B06 = (f) => path.join(ROOT, "B06_Section", `${f}.ts`);
+const { computeStoredLayouts } = loadTs(B06("B06_Section_Structure_Layouts"));
+const { appendCulvertOverlay } = loadTs(B06("B06_Section_UI_Cross_Culvert"));
+const { wallStandsAt } = loadTs(B06("B06_Section_UI_Cross_Culvert_Wire"));
+const { applyStructurePick } = loadTs(B06("B06_Section_UI_Page_Structure_Pick"));
+
+const fixture = JSON.parse(
+  fs.readFileSync(path.join(__dirname, "fixtures", "b07_cross_overlay_sections.json"), "utf8"),
+);
+const sections = fixture.cross_sections;
+const pipeSection = sections.find((s) => s.culvert && !s.culvert.hidden_pipe);
+const layout = computeStoredLayouts(pipeSection, sections).culvert;
+const out = {};
+
+// ① 오버레이 — 판정면 차례 · 관 누름 · 강조
+function overlay(hidePipe) {
+  const layer = new FakeNode("g");
+  const picked = [];
+  const setter = appendCulvertOverlay(
+    layer,
+    layout,
+    (o) => -o * 10,
+    (e) => -e * 10,
+    (key) => picked.push(key),
+    hidePipe,
+  );
+  const hits = layer.children.filter((n) => n.classList.contains("b06-chart__culvert-revet-hit"));
+  const pipes = layer.children.filter((n) => n.classList.contains("b06-chart__culvert-pipe"));
+  const walls = layer.children.filter((n) => n.classList.contains("b06-chart__culvert-revet"));
+  return { layer, picked, setter, hits, pipes, walls };
+}
+const drawn = overlay(false);
+const firstHit = drawn.hits[0];
+const stopped = firstHit.click();
+const active = () => ({
+  pipes: drawn.pipes.map((p) => p.classList.contains("is-active")),
+  walls: drawn.walls.map((w) => w.classList.contains("is-active")),
+});
+drawn.setter("pipe");
+const onPipe = active();
+drawn.setter("outlet");
+const onOutlet = active();
+drawn.setter(null);
+const onNone = active();
+// 판정면 차례 — 관 판정면이 벽 판정면들보다 먼저(아래) 얹힘
+const order = drawn.layer.children
+  .filter((n) => n.classList.contains("b06-chart__culvert-revet-hit"))
+  .map((n) => (n === firstHit ? "pipe" : "wall"));
+// 관 판정면 = 외경 겹 꼭짓점과 같음
+const outer = drawn.pipes.find((p) => p.classList.contains("b06-chart__culvert-pipe--outer"));
+out.overlay = {
+  pipeCount: drawn.pipes.length,
+  wallCount: drawn.walls.length,
+  hitOrder: order,
+  firstPicked: drawn.picked,
+  stopped,
+  hitMatchesOuter: firstHit.attrs.points === outer.attrs.points,
+  onPipe,
+  onOutlet,
+  onNone,
+};
+// 관을 숨긴 카드(링크 · 독립 흙막이 · 세월교 · 박스) — 관 판정면 없음
+const hidden = overlay(true);
+hidden.hits.forEach((h) => h.click());
+out.hiddenPipe = { pipes: hidden.pipes.length, picked: hidden.picked };
+
+// ② 연동 카드 — 관은 주인 측점 카드에만
+const neighbour = { ...pipeSection, chainage_m: pipeSection.chainage_m + 2 };
+out.stands = {
+  self: wallStandsAt(pipeSection, pipeSection, "pipe"),
+  neighbour: wallStandsAt(pipeSection, neighbour, "pipe"),
+  outletNeighbour: wallStandsAt(pipeSection, neighbour, "outlet"),
+};
+
+// ③ B05 3D 관 고름(pipe 키) → B06 벽 고름 길로
+function pick(key, extra = {}) {
+  const calls = [];
+  const target = { ...pipeSection, ...extra };
+  applyStructurePick(
+    { at: target.chainage_m, key },
+    { cross_sections: [target] },
+    {
+      focusStation: (id) => calls.push(["focus", id]),
+      refreshCard: (c) => calls.push(["refresh", c]),
+      revetSelect: (c, k) => calls.push(["revet", k]),
+      fordSelect: (c, k) => calls.push(["ford", k]),
+      boxSelect: (c, k) => calls.push(["box", k]),
+    },
+  );
+  return calls.filter(([kind]) => kind !== "focus" && kind !== "refresh");
+}
+out.pick = {
+  pipe: pick("pipe"),
+  basin: pick("basin"),
+  fordPipe: pick("pipe", { ford: {} }),
+};
+
+// ④ 조정창 — show("pipe") = 숨김 · side "pipe" · 조정 함수 안 불림
+const base = loadTs(B06("B06_Section_UI_Cross_Panel_Base"));
+STUBS = {
+  ...STUBS,
+  "./B06_Section_UI_Section_Common": { L: (key) => key },
+  "./B06_Section_UI_Cross_Panel_Base": {
+    ...base,
+    bindDragHandle: () => ({ attach: () => {}, detach: () => {} }),
+  },
+};
+const { buildStructurePanel } = loadTs(B06("B06_Section_UI_Cross_Structure_Panel"));
+const touched = [];
+const spy = (name, value) => (key) => {
+  touched.push([name, key]);
+  return value;
+};
+const panelDeps = {
+  scrollKey: "t118",
+  adjustFor: spy("adjustFor", { x: 0, d: null, h: null, m: null }),
+  nudge: spy("nudge"),
+  nudgeSlope: spy("nudgeSlope"),
+  nudgeHeight: spy("nudgeHeight"),
+  heightFor: spy("heightFor", 2),
+  formFor: spy("formFor", "돌쌓기(메)"),
+  setForm: spy("setForm"),
+  reset: spy("reset"),
+  close: () => {},
+  structureFor: () => "revet",
+  basinAdjustFor: () => ({ innerWidthM: 1, innerHeightM: 1.2, lateralM: 0, slopeM: 0 }),
+  updateBasin: () => {},
+  nudgeBasinLateral: () => {},
+  resetBasin: () => {},
+  canNudge: spy("canNudge", true),
+  fineMove: spy("fineMove", false),
+  dragAxes: spy("dragAxes", null),
+  extraState: () => ({ canAdd: false, count: 0 }),
+  isLinkedCard: () => false,
+  basinExtraState: () => ({ canAdd: false, count: 0 }),
+  hiddenPipe: () => false,
+  bodyGuard: () => false,
+  setExtraCount: () => {},
+  setBasinExtraCount: () => {},
+  equalizeExtras: () => {},
+  spanFor: spy("spanFor", null),
+  setSpan: () => {},
+  linkState: () => null,
+  setLinked: () => {},
+  followGrade: () => true,
+  setFollowGrade: () => {},
+};
+const panel = buildStructurePanel(panelDeps);
+panel.show("outlet");
+const outletState = {
+  hidden: panel.root.classList.contains("is-hidden"),
+  side: panel.root.dataset.side,
+};
+touched.length = 0;
+panel.show("pipe");
+out.panel = {
+  outlet: outletState,
+  pipe: {
+    hidden: panel.root.classList.contains("is-hidden"),
+    side: panel.root.dataset.side,
+    touched: touched.map(([name]) => name),
+  },
+};
+panel.show(null);
+out.panel.none = {
+  hidden: panel.root.classList.contains("is-hidden"),
+  side: panel.root.dataset.side,
+};
+
+process.stdout.write(JSON.stringify(out));
diff --git a/resources/tester/test_118_pipe_pick.py b/resources/tester/test_118_pipe_pick.py
new file mode 100644
index 000000000..161d0e4f3
--- /dev/null
+++ b/resources/tester/test_118_pipe_pick.py
@@ -0,0 +1,116 @@
+"""PLAN 118-1 — B06 배관 횡단도 관 고름 → 관 두 겹 강조 · 좌측 「관」 상자 강조 · 조정창 없음.
+
+짝: `B06_Section/B06_Section_UI_Cross_Culvert.ts`(관 판정면 · 강조) · `_Cross_Structure_Panel.ts`(show "pipe") ·
+`_Adjust_Dock.ts`(side "pipe") · `_Page_Structures_Panel.ts`(`keyOf`) · `_Page_Structure_Pick.ts`(3D pipe 키).
+실제 TS 를 `helper_118_pipe_pick.cjs` 가 Node 로 돌린다.
+"""
+
+from __future__ import annotations
+
+import json
+import os
+import subprocess
+
+import pytest
+
+HERE = os.path.dirname(__file__)
+ROOT = os.path.join(HERE, "..", "..")
+
+pytestmark = pytest.mark.skipif(
+    not os.path.isdir(os.path.join(ROOT, "config", "node_modules")),
+    reason="프론트엔드 의존성 미설치",
+)
+
+
+@pytest.fixture(scope="module")
+def out() -> dict:
+    proc = subprocess.run(  # noqa: S603 — 고정 실행 파일
+        ["node", os.path.join(HERE, "helper_118_pipe_pick.cjs")],
+        capture_output=True,
+        text=True,
+        encoding="utf-8",
+        timeout=60,
+    )
+    assert proc.returncode == 0, proc.stderr
+    return json.loads(proc.stdout)
+
+
+def _src(rel: str) -> str:
+    with open(os.path.join(ROOT, rel), encoding="utf-8") as f:
+        return f.read()
+
+
+def test_관을_누르면_관을_고름(out) -> None:
+    overlay = out["overlay"]
+    assert overlay["firstPicked"] == ["pipe"]
+    assert overlay["stopped"] is True  # 카드 고름으로 안 번짐
+    assert overlay["hitMatchesOuter"] is True  # 판정면 = 외경
+
+
+def test_관_판정면은_벽_아래(out) -> None:
+    """겹친 자리는 벽이 이김 — 관 판정면이 벽 · 집수정 판정면보다 먼저 얹힘."""
+    order = out["overlay"]["hitOrder"]
+    assert order[0] == "pipe"
+    assert order.count("pipe") == 1 and len(order) > 1
+
+
+def test_관_고름은_관_두_겹만_강조(out) -> None:
+    overlay = out["overlay"]
+    assert overlay["pipeCount"] == 2
+    assert overlay["onPipe"]["pipes"] == [True, True]
+    assert not any(overlay["onPipe"]["walls"])
+    # 벽을 고르면 관 강조는 꺼짐 — 동시 강조 없음
+    assert not any(overlay["onOutlet"]["pipes"]) and any(overlay["onOutlet"]["walls"])
+    assert not any(overlay["onNone"]["pipes"] + overlay["onNone"]["walls"])
+
+
+def test_관을_숨긴_카드엔_관_판정면_없음(out) -> None:
+    """링크 · 독립 흙막이 · 세월교 · 박스 측점(hidden_pipe) — 관은 세월교 오버레이 몫."""
+    assert out["hiddenPipe"]["pipes"] == 0
+    assert "pipe" not in out["hiddenPipe"]["picked"]
+
+
+def test_관_강조는_주인_측점_카드만(out) -> None:
+    stands = out["stands"]
+    assert stands["self"] is True
+    assert stands["neighbour"] is False
+    assert stands["outletNeighbour"] is True  # 벽 연동은 그대로
+
+
+def test_3D_관_고름이_B06_으로_이어짐(out) -> None:
+    assert out["pick"]["pipe"] == [["revet", "pipe"]]
+    assert out["pick"]["basin"] == []
+    assert out["pick"]["fordPipe"] == []  # 세월교 측점 = 세월교 창 몫
+
+
+def test_관은_조정창_없음(out) -> None:
+    panel = out["panel"]
+    assert panel["outlet"] == {"hidden": False, "side": "outlet"}
+    assert panel["pipe"] == {"hidden": True, "side": "pipe", "touched": []}
+    assert panel["none"] == {"hidden": True, "side": ""}
+
+
+def test_좌측_관_상자_강조_스크롤() -> None:
+    dock = _src("B06_Section/B06_Section_UI_Adjust_Dock.ts")
+    assert 'if (side === "body" || side === "pipe") {' in dock
+    assert "'fieldset[data-spec-container=\"pipe\"]'" in dock
+    assert 'body.classList.add("is-active");' in dock
+    assert 'if (scroll) body.scrollIntoView({ block: "nearest" });' in dock
+    # 관 상자 칸을 고치면 관을 고름 — 횡단에서 누른 것과 같은 길
+    page = _src("B06_Section/B06_Section_UI_Page_Structures_Panel.ts")
+    assert 'if (id === "inlet" || id === "outlet" || id === "pipe") return id;' in page
+    css = _src("B06_Section/B06_Section_UI_Style_Cross_Areas.css")
+    assert ".b06-chart__culvert-pipe.is-active {" in css
+
+
+def test_벽_본체_동시_고름_금지_그대로() -> None:
+    """107-1 — 관도 같은 고름 저장소라 세월교 · 박스 고름과 함께 서지 않음."""
+    station = _src("B06_Section/B06_Section_UI_Page_Station_Controls.ts")
+    assert "let revetSelection: { at: string; key: RevetPick } | null = null;" in station
+    assert (
+        "if (key && ford.control.selectedFor(chainageM)) ford.control.select(chainageM, null);"
+        in station
+    )
+    view = _src("B06_Section/B06_Section_UI_Cross_View.ts")
+    assert "const toggleRevet = (key: RevetPick): void => {" in view
+    assert "if (activeRevet !== null) toggleRevet(activeRevet);" in view