diff --git a/activities/part-substitution-assessment/src/manifest.ts b/activities/part-substitution-assessment/src/manifest.ts
index 838006a..433178c 100644
--- a/activities/part-substitution-assessment/src/manifest.ts
+++ b/activities/part-substitution-assessment/src/manifest.ts
@@ -89,7 +89,7 @@ export const manifest: ActivityManifest = {
   identity: {
     activityId: ACTIVITY_ID,
     name: 'ACT-WORK-05 · 差异评估',
-    packageVersion: '1.4.1',
+    packageVersion: '1.4.2',
     category: '需求分析与方案匹配',
     sdkVersion: '0.1.0-m5',
     checksum: 'dev-checksum-part-substitution-assessment',
diff --git a/activities/part-substitution-assessment/src/views/report.ts b/activities/part-substitution-assessment/src/views/report.ts
index 45e0520..49203fc 100644
--- a/activities/part-substitution-assessment/src/views/report.ts
+++ b/activities/part-substitution-assessment/src/views/report.ts
@@ -37,6 +37,12 @@ const BIND_COMMON = `
 #tbl1.on td > .jc-vcell:not(.ro) { display: none; }
 /* ③ 一行里的 input 与 select 同高同线:select 天生比 input 矮 4px,编辑态里一排格子高低不齐 */
 input.jc-cell, select.jc-cell { height: 32px; box-sizing: border-box; padding-top: 0; padding-bottom: 0; vertical-align: middle; }
+/* ④ 加行 / 删行要看得见(2026-08-27 用户:「加一行后点旁边的叉没有反应」):E04 那套记号样式挂在它自己的
+      外壳类下,本件按目标件重做后表是 table.on —— 一条都没跟过来,× 按了类是切了、屏上没动静 */
+table.on tr.jc-row-new td { background: #f2fbf7; }
+table.on tr.jc-row-gone td { background: #fff6f6; opacity: .55; }
+table.on tr.jc-row-gone .jc-cell { text-decoration: line-through; color: var(--ink-3); }
+table.on tr.jc-row-gone .jc-rowdel { border-color: var(--danger); color: var(--danger); background: #fff; }
 /* 只在「待处理」这一态露面;归档 / 验收只读态即便 HTML 里还带着 data-edit 也不摆闸和加行钮
    (目标件是静态 demo,不区分这两态;html.editable 是平台在 iframe 根节点上真开的关) */
 html:not(.editable) .jc-editgate, html:not(.editable) .jc-addrow { display: none !important; }
diff --git a/packages/ui-kit/__tests__/view-container-collect.test.ts b/packages/ui-kit/__tests__/view-container-collect.test.ts
index 61fd18b..38121c4 100644
--- a/packages/ui-kit/__tests__/view-container-collect.test.ts
+++ b/packages/ui-kit/__tests__/view-container-collect.test.ts
@@ -20,7 +20,7 @@
  */
 // @vitest-environment jsdom
 import { describe, expect, it } from 'vitest';
-import { collect, fileRefOf, unanswered } from '../src/ViewContainer.tsx';
+import { collect, dropRow, fileRefOf, unanswered } from '../src/ViewContainer.tsx';
 
 /** 三行,每行一个手写三选一(照 A2/A4 现存的 `.jc-radiogrp` 结构,input 距 <tr> 四层) */
 function radioTable(): Document {
@@ -194,3 +194,31 @@ describe('fileRefOf —— data-file 解析', () => {
     expect(fileRefOf('不是地址/CT-1')).toBeUndefined();
   });
 });
+
+/**
+ * 按 × 的两种下场(2026-08-27 用户在 W05 上:「编辑点击再加一行后,点击旁边的叉没有反应」)。
+ * 类是切了、件里没那条样式是件的事;这里钉的是行为:刚加的行按 × 直接没了,原有的行挂记号、再按摘掉。
+ */
+describe('dropRow:刚加的行直接拿掉,原有的行挂记号', () => {
+  const table = () => {
+    const doc = document.implementation.createHTMLDocument('');
+    doc.body.innerHTML = '<table><tbody data-edit="a.b"><tr id="old"><td>x</td></tr><tr id="fresh" class="jc-row-new"><td></td></tr></tbody></table>';
+    return doc;
+  };
+  it('jc-row-new 的行 → 从表里移除(它从没存在过,挂记号再保存只会送一条认不出的撤行)', () => {
+    const doc = table();
+    const fresh = doc.getElementById('fresh')!;
+    expect(dropRow(fresh)).toBe('removed');
+    expect(doc.getElementById('fresh')).toBeNull();
+    expect(doc.querySelectorAll('tbody tr')).toHaveLength(1);
+  });
+  it('原有的行 → 第一次挂 jc-row-gone,第二次摘掉;行本身一直在(人看得见、有得后悔)', () => {
+    const doc = table();
+    const old = doc.getElementById('old')!;
+    expect(dropRow(old)).toBe('marked');
+    expect(old.classList.contains('jc-row-gone')).toBe(true);
+    expect(dropRow(old)).toBe('unmarked');
+    expect(old.classList.contains('jc-row-gone')).toBe(false);
+    expect(doc.getElementById('old')).not.toBeNull();
+  });
+});
diff --git a/packages/ui-kit/src/ViewContainer.tsx b/packages/ui-kit/src/ViewContainer.tsx
index 2fbc5fe..e6db88d 100644
--- a/packages/ui-kit/src/ViewContainer.tsx
+++ b/packages/ui-kit/src/ViewContainer.tsx
@@ -277,6 +277,22 @@ function collectGone(doc: Document, address: string): Array<Record<string, strin
   });
 }
 
+/**
+ * **按下某一行的 ×**:两种行两种下场。
+ *   · 本轮「加一行」加出来的(`jc-row-new`)—— 它从没存在过,直接拿掉;挂个记号再保存,
+ *     送出去的是一条「撤掉一行草稿里没有的行」,服务端只能回「认不出」,人看着像没删成;
+ *   · 原本就有的行 —— 挂记号(`jc-row-gone`),不当场抹掉:人得看得见自己删了哪一行,
+ *     也才有得后悔(「取消」把记号摘了就回来了);再按一次 × 记号摘掉。
+ * 抽成函数是为了钉测:2026-08-27 用户在 W05 上按 × 「没有反应」—— 类是切了,件里没有那条样式。
+ */
+export function dropRow(row: HTMLElement): 'removed' | 'marked' | 'unmarked' {
+  if (row.classList.contains('jc-row-new')) {
+    row.remove();
+    return 'removed';
+  }
+  return row.classList.toggle('jc-row-gone') ? 'marked' : 'unmarked';
+}
+
 /**
  * **在表尾添一行空的** —— 照末行的样子克隆,值清空。
  *
@@ -493,7 +509,9 @@ export function ViewContainer({ html, title = '活动视图', editable = false,
      * 人得看得见自己删了哪一行,也才有得后悔(「取消」把记号摘了就回来了)。
      */
     if (del !== undefined) {
-      target?.closest?.('tr')?.classList.toggle('jc-row-gone');
+      const row = target?.closest?.('tr') ?? null;
+      if (row !== null) dropRow(row);
+      measureRef.current();
       return;
     }
     if (add !== undefined) {