diff --git a/src/AcDream.UI.ImGui/ImGuiPanelRenderer.cs b/src/AcDream.UI.ImGui/ImGuiPanelRenderer.cs
index 94f09d4..4aa94ae 100644
--- a/src/AcDream.UI.ImGui/ImGuiPanelRenderer.cs
+++ b/src/AcDream.UI.ImGui/ImGuiPanelRenderer.cs
@@ -14,30 +14,7 @@ namespace AcDream.UI.ImGui;
 public sealed class ImGuiPanelRenderer : IPanelRenderer
 {
     /// <inheritdoc />
-    public bool Begin(string title)
-    {
-        bool open = ImGuiNET.ImGui.Begin(title);
-        if (open)
-        {
-            // Title-bar-only drag: ImGui's default lets the user drag the
-            // window by clicking on the empty body background (because a
-            // window-drag is initiated whenever a body click lands without
-            // any widget being "active"). Filling the body with an
-            // InvisibleButton absorbs those stray clicks — real widgets
-            // drawn afterwards still claim their own clicks because click
-            // priority is "last drawn, first checked", so the button
-            // catches only empty-space clicks. Net effect: title bar
-            // still drags (ImGui default), body never does.
-            var avail = ImGuiNET.ImGui.GetContentRegionAvail();
-            if (avail.X > 0f && avail.Y > 0f)
-            {
-                var savedCursor = ImGuiNET.ImGui.GetCursorPos();
-                ImGuiNET.ImGui.InvisibleButton("##bodydragabsorb", avail);
-                ImGuiNET.ImGui.SetCursorPos(savedCursor);
-            }
-        }
-        return open;
-    }
+    public bool Begin(string title) => ImGuiNET.ImGui.Begin(title);
 
     /// <inheritdoc />
     public void End() => ImGuiNET.ImGui.End();
@@ -178,12 +155,41 @@ public sealed class ImGuiPanelRenderer : IPanelRenderer
 
     /// <inheritdoc />
     public bool BeginChild(string id, Vector2 size, bool border = false)
+    {
         // ImGuiChildFlags has changed names across ImGui.NET versions
         // (Border vs Borders); 0x01 is the stable bit value for "draw
         // a border". Casting from a numeric literal sidesteps the
         // version-skew without requiring a hard reference to either
         // enum spelling.
-        => ImGuiNET.ImGui.BeginChild(id, size, (ImGuiChildFlags)(border ? 0x01 : 0));
+        bool open = ImGuiNET.ImGui.BeginChild(id, size, (ImGuiChildFlags)(border ? 0x01 : 0));
+        if (open)
+        {
+            // Title-bar-only drag fix (chat tail specifically): empty
+            // clicks inside a scrollable child fall through to the
+            // parent window for drag-init, which is exactly what the
+            // user reported in the chat panel ("clicking anywhere
+            // moves the window"). An InvisibleButton sized to the
+            // child's content region absorbs those clicks so they
+            // don't propagate. Real widgets drawn afterwards still
+            // claim their own clicks (click priority = "last drawn,
+            // first checked"). Wheel scrolling is window-level, not
+            // item-level, so the absorber doesn't interfere with
+            // the chat tail's auto-scroll.
+            //
+            // Scoped to BeginChild only (NOT Begin) because Begin's
+            // body might host tab bars whose hit-testing competes with
+            // an absorber on equal terms — adding it at Begin level
+            // broke Settings tab clicks.
+            var avail = ImGuiNET.ImGui.GetContentRegionAvail();
+            if (avail.X > 0f && avail.Y > 0f)
+            {
+                var savedCursor = ImGuiNET.ImGui.GetCursorPos();
+                ImGuiNET.ImGui.InvisibleButton("##childbodyabsorb", avail);
+                ImGuiNET.ImGui.SetCursorPos(savedCursor);
+            }
+        }
+        return open;
+    }
 
     /// <inheritdoc />
     public void EndChild() => ImGuiNET.ImGui.EndChild();