diff --git a/Yattee/Services/Navigation/NavigationCoordinator.swift b/Yattee/Services/Navigation/NavigationCoordinator.swift
index 6a5c05f4..cc0e9ba1 100644
--- a/Yattee/Services/Navigation/NavigationCoordinator.swift
+++ b/Yattee/Services/Navigation/NavigationCoordinator.swift
@@ -162,6 +162,11 @@ final class NavigationCoordinator {
     /// inside it must not start the sheet dismiss pan (drag handle conflict).
     var cornerBelowPanelFrame: CGRect = .zero
 
+    /// Panel resize grabber strip frame in screen coordinates — touches inside
+    /// it must not start the sheet dismiss pan (a diagonal resize drag would
+    /// otherwise be cancelled and dismiss the player instead).
+    var panelResizeGrabberFrame: CGRect = .zero
+
     /// Progress bar frame in screen coordinates (for gesture conflict resolution).
     var progressBarFrame: CGRect = .zero
 
diff --git a/Yattee/Views/Player/ExpandedPlayerWindow.swift b/Yattee/Views/Player/ExpandedPlayerWindow.swift
index 14d98fe6..bec6dc8a 100644
--- a/Yattee/Views/Player/ExpandedPlayerWindow.swift
+++ b/Yattee/Views/Player/ExpandedPlayerWindow.swift
@@ -146,6 +146,8 @@ private final class DragToDismissGestureHandler: NSObject, UIGestureRecognizerDe
     var getPortraitPanelFrame: (() -> CGRect)?
     /// Returns the corner layout below-video panel frame in screen coordinates (blocks dismiss pan)
     var getCornerBelowPanelFrame: (() -> CGRect)?
+    /// Returns the panel resize grabber strip frame in screen coordinates (blocks dismiss pan)
+    var getPanelResizeGrabberFrame: (() -> CGRect)?
     /// Returns whether the portrait panel is currently visible (not hidden off-screen)
     var isPortraitPanelVisible: (() -> Bool)?
     /// Returns the progress bar frame in screen coordinates (for gesture conflict resolution)
@@ -378,6 +380,16 @@ private final class DragToDismissGestureHandler: NSObject, UIGestureRecognizerDe
             }
         }
 
+        // Don't begin dismiss gesture from the panel resize grabber strip —
+        // a diagonal resize drag would otherwise be cancelled mid-resize
+        let grabberFrame = getPanelResizeGrabberFrame?() ?? .zero
+        if !grabberFrame.isEmpty {
+            let touchLocation = panGesture.location(in: nil)
+            if grabberFrame.contains(touchLocation) {
+                return false
+            }
+        }
+
         // When portrait panel is visible, only allow dismiss from player area (above panel)
         // This prevents race conditions where isPanelDragging isn't set yet when gesture begins
         let panelFrame = getPortraitPanelFrame?() ?? .zero
@@ -860,6 +872,9 @@ final class ExpandedPlayerWindowManager {
         handler.getCornerBelowPanelFrame = { [weak self] in
             self?.appEnvironment?.navigationCoordinator.cornerBelowPanelFrame ?? .zero
         }
+        handler.getPanelResizeGrabberFrame = { [weak self] in
+            self?.appEnvironment?.navigationCoordinator.panelResizeGrabberFrame ?? .zero
+        }
         handler.isPortraitPanelVisible = { [weak self] in
             self?.appEnvironment?.navigationCoordinator.isPortraitPanelVisible ?? true
         }
diff --git a/Yattee/Views/Player/Panels/PanelResizeGrabber.swift b/Yattee/Views/Player/Panels/PanelResizeGrabber.swift
index 92bfcc0d..7e17b8ac 100644
--- a/Yattee/Views/Player/Panels/PanelResizeGrabber.swift
+++ b/Yattee/Views/Player/Panels/PanelResizeGrabber.swift
@@ -11,6 +11,8 @@ import SwiftUI
 
 /// A draggable handle for resizing the panel width.
 struct PanelResizeGrabber: View {
+    @Environment(\.appEnvironment) private var appEnvironment
+
     @Binding var panelWidth: CGFloat
     let minWidth: CGFloat
     let maxWidth: CGFloat
@@ -54,6 +56,22 @@ struct PanelResizeGrabber: View {
                     .frame(width: 4, height: 36)
             }
             .gesture(dragGesture)
+            #if os(iOS)
+            // Publish the strip frame (with slop) so the window-level dismiss
+            // pan never begins from a resize drag — a diagonal start would
+            // otherwise cancel the resize and dismiss the player instead
+            .background {
+                GeometryReader { proxy in
+                    Color.clear
+                        .onChange(of: proxy.frame(in: .global), initial: true) { _, frame in
+                            appEnvironment?.navigationCoordinator.panelResizeGrabberFrame = frame.insetBy(dx: -8, dy: 0)
+                        }
+                        .onDisappear {
+                            appEnvironment?.navigationCoordinator.panelResizeGrabberFrame = .zero
+                        }
+                }
+            }
+            #endif
             #if os(macOS)
             .onHover { hovering in
                 isHovering = hovering