diff --git a/api/android-for-longdo.api b/api/android-for-longdo.api
index 90efe1f..99ecfa1 100644
--- a/api/android-for-longdo.api
+++ b/api/android-for-longdo.api
@@ -141,7 +141,7 @@ public final class com.mapconductor.longdo.LongdoMapViewControllerMarkerTilesKt
   public static final void renderTiledMarkers(com.mapconductor.longdo.LongdoMapViewController, java.util.List<com.mapconductor.core.marker.MarkerState>);
   public static final void applyMarkerTileRaster(com.mapconductor.longdo.LongdoMapViewController, com.mapconductor.core.raster.RasterLayerState);
   public static final void removeMarkerTileRaster(com.mapconductor.longdo.LongdoMapViewController);
-  public static final boolean handleMarkerTap(com.mapconductor.longdo.LongdoMapViewController, com.mapconductor.core.features.GeoPoint, double);
+  public static final boolean handleMarkerTap(com.mapconductor.longdo.LongdoMapViewController, com.mapconductor.core.features.GeoPoint);
 }
 public final class com.mapconductor.longdo.LongdoMapViewControllerRasterKt {
   public static final void applyRaster(com.mapconductor.longdo.LongdoMapViewController, com.mapconductor.core.raster.RasterLayerState);
@@ -339,6 +339,7 @@ public final class com.mapconductor.longdo.marker.LongdoMarkerTileRenderer {
   public final com.mapconductor.core.raster.RasterLayerState render(java.util.List<com.mapconductor.core.marker.MarkerState>);
   public final java.lang.String getRasterLayerId();
   public final void clear();
+  public final com.mapconductor.core.marker.MarkerState findMarkerAt(com.mapconductor.core.features.GeoPointInterface, kotlin.jvm.functions.Function1<? super com.mapconductor.core.features.GeoPointInterface, androidx.compose.ui.geometry.Offset>);
   public final com.mapconductor.core.marker.MarkerState findMarkerAt(com.mapconductor.core.features.GeoPointInterface, double);
 }
 final class com.mapconductor.longdo.marker.LongdoMarkerTileRenderer$Companion {
diff --git a/src/main/java/com/mapconductor/longdo/LongdoMapView.kt b/src/main/java/com/mapconductor/longdo/LongdoMapView.kt
index d32b4ed..a4c4195 100644
--- a/src/main/java/com/mapconductor/longdo/LongdoMapView.kt
+++ b/src/main/java/com/mapconductor/longdo/LongdoMapView.kt
@@ -291,12 +291,12 @@ fun LongdoMapSurface(
         pushTargets()
         onLoaded?.invoke(currentState)
     }
-    bridge.onMapClick = { point, zoom ->
+    bridge.onMapClick = { point, _ ->
         // marker → circle → groundImage → polyline → polygon → map のカスケード。
         // **必ずどれか 1 つだけ**が配送される（他プロバイダと同じ）。
         // 順序と先勝ちはコアの dispatchOverlayTap が持つ。マーカーだけは Longdo の
         // タイルレンダラでヒットテストするのでここで先に見る。
-        if (!controller.handleMarkerTap(point, zoom) && !controller.dispatchOverlayTap(point)) {
+        if (!controller.handleMarkerTap(point) && !controller.dispatchOverlayTap(point)) {
             onClick?.invoke(point)
         }
     }
diff --git a/src/main/java/com/mapconductor/longdo/LongdoMapViewControllerMarkerTiles.kt b/src/main/java/com/mapconductor/longdo/LongdoMapViewControllerMarkerTiles.kt
index 28b8758..05e9187 100644
--- a/src/main/java/com/mapconductor/longdo/LongdoMapViewControllerMarkerTiles.kt
+++ b/src/main/java/com/mapconductor/longdo/LongdoMapViewControllerMarkerTiles.kt
@@ -92,14 +92,12 @@ internal fun LongdoMapViewController.removeMarkerTileRaster() {
  * 流さない（他プロバイダと同じ）。
  *
  * @param point タップ座標。
- * @param nativeZoom Longdo ネイティブ（MapLibre）ズーム。
  * @return マーカーがタップを消費したら true。
  */
 internal fun LongdoMapViewController.handleMarkerTap(
     point: com.mapconductor.core.features.GeoPoint,
-    nativeZoom: Double,
 ): Boolean {
-    val state = markerTileRenderer?.findMarkerAt(point, nativeZoom) ?: return false
+    val state = markerTileRenderer?.findMarkerAt(point, holder::toScreenOffset) ?: return false
     // clickable = false のマーカーは透過させる（コアの clickableOnly と同じ方針）。
     if (!state.clickable) return false
     state.onClick?.invoke(state)
diff --git a/src/main/java/com/mapconductor/longdo/marker/LongdoMarkerTileRenderer.kt b/src/main/java/com/mapconductor/longdo/marker/LongdoMarkerTileRenderer.kt
index 290d669..f302a6a 100644
--- a/src/main/java/com/mapconductor/longdo/marker/LongdoMarkerTileRenderer.kt
+++ b/src/main/java/com/mapconductor/longdo/marker/LongdoMarkerTileRenderer.kt
@@ -1,5 +1,8 @@
 package com.mapconductor.longdo.marker
 
+import com.mapconductor.core.InternalMapConductorApi
+import com.mapconductor.core.marker.MarkerHitPick
+import androidx.compose.ui.geometry.Offset
 import com.mapconductor.core.features.GeoPointInterface
 import com.mapconductor.core.marker.MarkerEntity
 import com.mapconductor.core.marker.MarkerManager
@@ -10,10 +13,10 @@ import com.mapconductor.core.raster.RasterLayerSource
 import com.mapconductor.core.raster.RasterLayerState
 import com.mapconductor.core.raster.TileScheme
 import com.mapconductor.core.tileserver.TileServerRegistry
-import java.util.UUID
 import kotlin.math.cos
 import kotlin.math.pow
 import kotlin.math.sqrt
+import java.util.UUID
 
 /**
  * 大量マーカー（「Bunch of Markers」等）を、他モジュール（maplibre / maptiler 等）と同じ方式＝
@@ -95,8 +98,31 @@ class LongdoMarkerTileRenderer(
     }
 
     /**
-     * タップ座標付近のマーカーを返す（クリック用の簡易ヒットテスト）。
+     * タップ座標に当たるマーカーを返す。選び方はコアの [MarkerHitPick.pick] と同じで、
+     * 指の下にアイコンかラベルが描かれているマーカーが、先端の近い別のマーカーより優先する。
+     *
+     * @param project 地理座標をビューの画面座標へ投影する（holder の toScreenOffset）。
+     */
+    @OptIn(InternalMapConductorApi::class)
+    fun findMarkerAt(
+        tap: GeoPointInterface,
+        project: (GeoPointInterface) -> Offset?,
+    ): MarkerState? {
+        if (markers.isEmpty()) return null
+        val touchScreen = project(tap) ?: return null
+        val bounds = MarkerHitPick.searchBounds(tap, touchScreen, project) ?: return null
+        val candidates = markers.filter { bounds.contains(it.position) }
+        return MarkerHitPick.pickBy(touchScreen, candidates, { it }, project)
+    }
+
+    /**
+     * 旧来の判定（先端からの距離だけを見る）。ラベルやアイコンの大きさを見ないので、
+     * 指の下に描かれているマーカーより先端の近い別のマーカーを選ぶことがある。
      */
+    @Deprecated(
+        "先端からの距離だけで選ぶ旧来の判定。findMarkerAt(tap, project) を使う。",
+        ReplaceWith("findMarkerAt(tap, project)"),
+    )
     fun findMarkerAt(
         tap: GeoPointInterface,
         nativeZoom: Double,