diff --git a/Components/PlotView/Inc/PlotView.hpp b/Components/PlotView/Inc/PlotView.hpp
index 1449abc..98609ee 100644
--- a/Components/PlotView/Inc/PlotView.hpp
+++ b/Components/PlotView/Inc/PlotView.hpp
@@ -2070,6 +2070,7 @@ namespace jdi
 			/** @brief 「均值滤波」面板每个信号标题栏左侧的**展开 / 收起三角**（仅勾选后出现）。 */
 			std::vector<gd::RectF> rowTriangles;
 			std::vector<SignalRef> rowRefs;
+
 			/**
 			 * @brief 「自由标记」面板的一行（一个固定点）。
 			 *
@@ -2210,6 +2211,45 @@ namespace jdi
 				MARKER_COL_TIME = 4,
 				MARKER_COL_DT = 5
 			};
+
+			/**
+			 * @brief 追加一**行**（条目栏 / 名称 / 三角 / 复选框），其余列一律补空矩形。
+			 *
+			 * ⚠️⚠️ 这是**唯一**允许新增行的入口。面板每行对应 18 个平行数组
+			 * （`rowRefs` / `rowHeaders` / `rowChecks` / `rowLevelTracks` / …）；
+			 * 如果每个排版分支各写一遍 `push_back`，只要某分支漏推一项，
+			 * 那一列之后的所有行都会**读到别人的矩形**（"改一次布局就出错"的典型机制）。
+			 * 现在：新增行的分支只调本函数，**新增一列只需改这里一处**；
+			 * 参数行 / 重采样行则用 `rowXxx.back() = …` 赋值（长度天然对齐）。
+			 *
+			 * @param [IN] ref 该行对应的信号。
+			 * @param [IN] header 信号色叠底条目栏（整行宽度）。
+			 * @param [IN] nameRect 名称（表格里的名称列）。
+			 * @param [IN] triangle 左侧展开 / 收起三角（不适用时传空矩形）。
+			 * @param [IN] check 右端复选框。
+			 */
+			void AppendRow(const SignalRef& ref, const gd::RectF& header, const gd::RectF& nameRect,
+			               const gd::RectF& triangle, const gd::RectF& check)
+			{
+				rowRefs.push_back(ref);
+				rowHeaders.push_back(header);
+				rowNameRects.push_back(nameRect);
+				rowTriangles.push_back(triangle);
+				rowChecks.push_back(check);
+				rowPoints.push_back(gd::RectF());
+				rowIterations.push_back(gd::RectF());
+				rowStats.push_back(gd::RectF());
+				rowLevelTracks.push_back(gd::RectF());
+				rowLevelValues.push_back(gd::RectF());
+				rowLevelResets.push_back(gd::RectF());
+				rowIterTracks.push_back(gd::RectF());
+				rowIterValues.push_back(gd::RectF());
+				rowIterResets.push_back(gd::RectF());
+				rowInfoMaxInterval.push_back(gd::RectF());
+				rowInfoMinInterval.push_back(gd::RectF());
+				rowIntervalField.push_back(gd::RectF());
+				rowFrequencyField.push_back(gd::RectF());
+			}
 		};
 
 		/**
diff --git a/Components/PlotView/Src/PlotViewPanels.cpp b/Components/PlotView/Src/PlotViewPanels.cpp
index 7b78260..34b22c5 100644
--- a/Components/PlotView/Src/PlotViewPanels.cpp
+++ b/Components/PlotView/Src/PlotViewPanels.cpp
@@ -735,22 +735,12 @@ namespace jdi
 				{
 					continue;
 				}
-				layout.rowRefs.push_back(ref);
-				layout.rowHeaders.push_back(gd::RectF(contentLeft, rowY, innerWidth, rowH));
-				layout.rowNameRects.push_back(
-				    gd::RectF(contentLeft + 4.0f * m_scale, rowY,
-				              std::max(10.0f, nameColumn - 8.0f * m_scale), rowH));
-				layout.rowTriangles.push_back(gd::RectF());
-				layout.rowChecks.push_back(gd::RectF());
-				layout.rowPoints.push_back(gd::RectF());
-				layout.rowIterations.push_back(gd::RectF());
-				layout.rowStats.push_back(gd::RectF());
-				layout.rowLevelTracks.push_back(gd::RectF());
-				layout.rowLevelValues.push_back(gd::RectF());
-				layout.rowLevelResets.push_back(gd::RectF());
-				layout.rowIterTracks.push_back(gd::RectF());
-				layout.rowIterValues.push_back(gd::RectF());
-				layout.rowIterResets.push_back(gd::RectF());
+				// ⚠️ 行的追加走 `AppendRow()`（**唯一入口**）：18 个平行数组一次补齐，
+				//    不会出现"某个分支漏推一列 ⇒ 该列之后所有行读到别人的矩形"。
+				layout.AppendRow(ref, gd::RectF(contentLeft, rowY, innerWidth, rowH),
+				                 gd::RectF(contentLeft + 4.0f * m_scale, rowY,
+				                           std::max(10.0f, nameColumn - 8.0f * m_scale), rowH),
+				                 gd::RectF(), gd::RectF());
 				rowY += rowH;
 			}
 		}
@@ -886,42 +876,26 @@ namespace jdi
 					checked = (item != nullptr);
 					itemCollapsed = (item != nullptr && item->collapsed);
 				}
-				layout.rowRefs.push_back(ref);
 				// 组头（信号色叠底）：整行宽度，左侧三角（仅勾选时）+ 名称，右端复选框。
-				layout.rowHeaders.push_back(
-				    gd::RectF(contentLeft, rowY, innerWidth, groupRow));
-				layout.rowNameRects.push_back(gd::RectF(contentLeft, rowY, innerWidth, groupRow));
-				layout.rowTriangles.push_back(
+				// ⚠️ 行的追加走 `AppendRow()`（**唯一入口**）：18 个平行数组一次补齐，
+				//    不会出现"某个分支漏推一列 ⇒ 该列之后所有行读到别人的矩形"。
+				//    下面的参数行 / 重采样行一律用 `rowXxx.back() = …` **赋值**（长度天然对齐）。
+				layout.AppendRow(
+				    ref, gd::RectF(contentLeft, rowY, innerWidth, groupRow),
+				    gd::RectF(contentLeft, rowY, innerWidth, groupRow),
 				    (checked && !clipPanel)
 				        ? gd::RectF(contentLeft + 3.0f * m_scale,
 				                    rowY + (groupRow - kEdgePanelRowTriangleSize * m_scale) * 0.5f,
 				                    kEdgePanelRowTriangleSize * m_scale,
 				                    kEdgePanelRowTriangleSize * m_scale)
-				        : gd::RectF());
-				layout.rowChecks.push_back(
+				        : gd::RectF(),
 				    gd::RectF(contentLeft + innerWidth - closeSize - 4.0f * m_scale,
 				              rowY + (groupRow - closeSize) * 0.5f, closeSize, closeSize));
-				layout.rowPoints.push_back(gd::RectF());
-				layout.rowIterations.push_back(gd::RectF());
-				layout.rowStats.push_back(gd::RectF());
 				rowY += groupRow;
 
 				// 参数行：只有勾选且未收起时才有几何（未勾选的行两者都是空矩形）。
 				if (!checked || itemCollapsed || clipPanel)
 				{
-					layout.rowLevelTracks.push_back(gd::RectF());
-					layout.rowLevelValues.push_back(gd::RectF());
-					layout.rowLevelResets.push_back(gd::RectF());
-					layout.rowIterTracks.push_back(gd::RectF());
-					layout.rowIterValues.push_back(gd::RectF());
-					layout.rowIterResets.push_back(gd::RectF());
-					if (resamplePanel)
-					{
-						layout.rowInfoMaxInterval.push_back(gd::RectF());
-						layout.rowInfoMinInterval.push_back(gd::RectF());
-						layout.rowIntervalField.push_back(gd::RectF());
-						layout.rowFrequencyField.push_back(gd::RectF());
-					}
 					continue;
 				}
 				if (resamplePanel)
@@ -929,27 +903,17 @@ namespace jdi
 					// 「重采样」四行：① 最大间隔（只读）② 最小间隔（只读）
 					// ③ 重采样间隔（输入）④ 重采样频率（输入，与③联动）。
 					// 每行 = 左侧标签 + 右侧数值/输入框区域。
-					layout.rowLevelTracks.push_back(gd::RectF());
-					layout.rowLevelValues.push_back(gd::RectF());
-					layout.rowLevelResets.push_back(gd::RectF());
-					layout.rowIterTracks.push_back(gd::RectF());
-					layout.rowIterValues.push_back(gd::RectF());
-					layout.rowIterResets.push_back(gd::RectF());
-					layout.rowInfoMaxInterval.push_back(
-					    gd::RectF(contentLeft, rowY, innerWidth, sliderRow));
+					layout.rowInfoMaxInterval.back() = gd::RectF(contentLeft, rowY, innerWidth, sliderRow);
 					rowY += sliderRow;
-					layout.rowInfoMinInterval.push_back(
-					    gd::RectF(contentLeft, rowY, innerWidth, sliderRow));
+					layout.rowInfoMinInterval.back() = gd::RectF(contentLeft, rowY, innerWidth, sliderRow);
 					rowY += sliderRow;
 					// 输入行的**数值矩形**靠右对齐，宽度取剩余可用宽度（绘制框与编辑框同源）。
 					const float fieldLeft = contentLeft + rowLabelColumn + 8.0f * m_scale;
 					const float fieldWidth =
 					    std::max(24.0f * m_scale, innerWidth - rowLabelColumn - 8.0f * m_scale);
-					layout.rowIntervalField.push_back(
-					    gd::RectF(fieldLeft, rowY, fieldWidth, sliderRow));
+					layout.rowIntervalField.back() = gd::RectF(fieldLeft, rowY, fieldWidth, sliderRow);
 					rowY += sliderRow;
-					layout.rowFrequencyField.push_back(
-					    gd::RectF(fieldLeft, rowY, fieldWidth, sliderRow));
+					layout.rowFrequencyField.back() = gd::RectF(fieldLeft, rowY, fieldWidth, sliderRow);
 					rowY += sliderRow;
 					continue;
 				}
@@ -961,22 +925,22 @@ namespace jdi
 				}
 				const gd::RectF pointsTrack(trackLeft, rowY + (sliderRow - trackHeight) * 0.5f,
 				                            trackWidth, trackHeight);
-				layout.rowLevelTracks.push_back(pointsTrack);
-				layout.rowLevelValues.push_back(
+				layout.rowLevelTracks.back() = pointsTrack;
+				layout.rowLevelValues.back() =
 				    gd::RectF(pointsTrack.X + pointsTrack.Width + 6.0f * m_scale, rowY, valueColumn,
-				              sliderRow));
-				layout.rowLevelResets.push_back(
-				    gd::RectF(resetLeft, rowY + (sliderRow - resetSize) * 0.5f, resetSize, resetSize));
+				              sliderRow);
+				layout.rowLevelResets.back() =
+				    gd::RectF(resetLeft, rowY + (sliderRow - resetSize) * 0.5f, resetSize, resetSize);
 				rowY += sliderRow;
 
 				const gd::RectF iterTrack(trackLeft, rowY + (sliderRow - trackHeight) * 0.5f,
 				                          trackWidth, trackHeight);
-				layout.rowIterTracks.push_back(iterTrack);
-				layout.rowIterValues.push_back(
+				layout.rowIterTracks.back() = iterTrack;
+				layout.rowIterValues.back() =
 				    gd::RectF(iterTrack.X + iterTrack.Width + 6.0f * m_scale, rowY, valueColumn,
-				              sliderRow));
-				layout.rowIterResets.push_back(
-				    gd::RectF(resetLeft, rowY + (sliderRow - resetSize) * 0.5f, resetSize, resetSize));
+				              sliderRow);
+				layout.rowIterResets.back() =
+				    gd::RectF(resetLeft, rowY + (sliderRow - resetSize) * 0.5f, resetSize, resetSize);
 				rowY += sliderRow;
 			}
 		}