diff --git a/src/app/panels/columns/Column2DDataset.cpp b/src/app/panels/columns/Column2DDataset.cpp
index c149f81..e6d6294 100644
--- a/src/app/panels/columns/Column2DDataset.cpp
+++ b/src/app/panels/columns/Column2DDataset.cpp
@@ -47,16 +47,16 @@ Column2DDataset::Column2DDataset(QWidget* parent) : QWidget(parent) {
         zSpin->setRange(-1000000, 1000000);
         zSpin->setSuffix(QStringLiteral(" m"));
         zSpin->setValue(0);
-        zSpin->setVisible(false);
         connect(view2d, qOverload<int>(&QComboBox::currentIndexChanged), this,
-                [this, zSpin](int idx) {
-                    zSpin->setVisible(idx == 4);
+                [this, form, zSpin](int idx) {
+                    form->setRowVisible(zSpin, idx == 4);  // 整行隐藏(含"Z 值"标签),非自定义时不留孤标签
                     emit view2DModeChanged(idx);
                 });
         connect(zSpin, qOverload<double>(&QDoubleSpinBox::valueChanged), this,
                 [this](double z) { emit customZChanged(z); });
         form->addRow(QStringLiteral("位置"), view2d);
         form->addRow(QStringLiteral("Z 值"), zSpin);
+        form->setRowVisible(zSpin, false);  // 默认非自定义→隐藏整行
         root->addWidget(new QLabel(QStringLiteral("2D视图")));
         root->addLayout(form);
     }