diff --git a/DynamicIsland/components/LockScreen/LockScreenLiveActivity.swift b/DynamicIsland/components/LockScreen/LockScreenLiveActivity.swift
index f998c97..41a3735 100644
--- a/DynamicIsland/components/LockScreen/LockScreenLiveActivity.swift
+++ b/DynamicIsland/components/LockScreen/LockScreenLiveActivity.swift
@@ -7,15 +7,26 @@
 
 import SwiftUI
 import Defaults
-import SkyLightWindow
 
 struct LockScreenLiveActivity: View {
     @EnvironmentObject var vm: DynamicIslandViewModel
-    // Don't observe lockScreenManager - just show static lock icon without state-driven animations
-    // This prevents animation conflicts with panel window teardown
+    @ObservedObject private var lockScreenManager = LockScreenManager.shared
     @State private var isHovering: Bool = false
     @State private var gestureProgress: CGFloat = 0
     @State private var isExpanded: Bool = false
+    @Namespace private var lockIconSpace
+
+    private var iconName: String {
+        lockScreenManager.isLocked ? "lock.fill" : "lock.open.fill"
+    }
+
+    private var iconColor: Color {
+        lockScreenManager.isLocked ? .blue : .green
+    }
+
+    private var glowColor: Color {
+        lockScreenManager.isLocked ? Color.blue.opacity(0.15) : Color.green.opacity(0.2)
+    }
     
     var body: some View {
         HStack(spacing: 0) {
@@ -26,12 +37,13 @@ struct LockScreenLiveActivity: View {
                         HStack {
                             ZStack {
                                 RoundedRectangle(cornerRadius: 6)
-                                    .fill(Color.blue.opacity(0.15))
+                                    .fill(glowColor)
                                 
-                                Image(systemName: "lock.fill")
-                                    .font(.system(size: 12))
-                                    .foregroundColor(.blue)
-                                    .modifier(LockPulsingModifier())
+                                Image(systemName: iconName)
+                                    .font(.system(size: 12, weight: .semibold))
+                                    .foregroundColor(iconColor)
+                                    .modifier(LockPulsingModifier(isUnlocking: !lockScreenManager.isLocked))
+                                    .matchedGeometryEffect(id: "lock-icon", in: lockIconSpace)
                             }
                             .frame(width: vm.effectiveClosedNotchHeight - 12, height: vm.effectiveClosedNotchHeight - 12)
                         }
@@ -52,27 +64,46 @@ struct LockScreenLiveActivity: View {
         .frame(height: vm.effectiveClosedNotchHeight + (isHovering ? 8 : 0))
         .onAppear {
             // Expand immediately without animation to avoid conflicts
-            isExpanded = true
+            withAnimation(.smooth(duration: 0.4)) {
+                isExpanded = true
+            }
         }
         .onDisappear {
             // Collapse immediately when removed from hierarchy
             isExpanded = false
         }
+        .onChange(of: lockScreenManager.isLockIdle) { _, newValue in
+            if newValue {
+                withAnimation(.smooth(duration: 0.4)) {
+                    isExpanded = false
+                }
+            } else {
+                withAnimation(.smooth(duration: 0.4)) {
+                    isExpanded = true
+                }
+            }
+        }
+        .animation(.spring(response: 0.5, dampingFraction: 0.85), value: lockScreenManager.isLocked)
+        .animation(.easeOut(duration: 0.25), value: isExpanded)
     }
 }
 
 // Pulsing animation modifier for lock indicator
 struct LockPulsingModifier: ViewModifier {
+    var isUnlocking: Bool
     @State private var isPulsing = false
     
     func body(content: Content) -> some View {
         content
             .scaleEffect(isPulsing ? 1.1 : 1.0)
-            .opacity(isPulsing ? 0.8 : 1.0)
+            .opacity(isPulsing ? (isUnlocking ? 1.0 : 0.8) : 1.0)
             .onAppear {
                 withAnimation(.easeInOut(duration: 1.0).repeatForever(autoreverses: true)) {
                     isPulsing = true
                 }
             }
+            .onDisappear {
+                isPulsing = false
+            }
     }
 }
diff --git a/DynamicIsland/components/LockScreen/LockScreenLiveActivityOverlay.swift b/DynamicIsland/components/LockScreen/LockScreenLiveActivityOverlay.swift
new file mode 100644
index 0000000..3acdb3a
--- /dev/null
+++ b/DynamicIsland/components/LockScreen/LockScreenLiveActivityOverlay.swift
@@ -0,0 +1,95 @@
+//
+//  LockScreenLiveActivityOverlay.swift
+//  DynamicIsland
+//
+//  Mirrors the closed-notch live activity layout on the macOS lock screen.
+//
+
+import SwiftUI
+
+enum LockLiveActivityState: Equatable {
+    case locked
+    case unlocking
+}
+
+struct LockScreenLiveActivityOverlay: View {
+    let state: LockLiveActivityState
+    let notchSize: CGSize
+
+    private var indicatorSize: CGFloat {
+        max(0, notchSize.height - 12)
+    }
+
+    private var horizontalPadding: CGFloat {
+        cornerRadiusInsets.closed.bottom
+    }
+
+    private var baseWidth: CGFloat {
+        notchSize.width + (indicatorSize * 2)
+    }
+
+    private var totalWidth: CGFloat {
+        baseWidth + (horizontalPadding * 2)
+    }
+
+    private var iconName: String {
+        state == .locked ? "lock.fill" : "lock.open.fill"
+    }
+
+    private var iconColor: Color {
+        state == .locked ? .blue : .green
+    }
+
+    private var glowColor: Color {
+        state == .locked ? Color.blue.opacity(0.15) : Color.green.opacity(0.2)
+    }
+
+    var body: some View {
+        HStack(spacing: 0) {
+            Color.clear
+                .background {
+                    HStack {
+                        ZStack {
+                            RoundedRectangle(cornerRadius: 6)
+                                .fill(glowColor)
+
+                            Image(systemName: iconName)
+                                .font(.system(size: 12, weight: .semibold))
+                                .foregroundColor(iconColor)
+                                .modifier(LockPulsingModifier(isUnlocking: state == .unlocking))
+                        }
+                        .frame(width: indicatorSize, height: indicatorSize)
+                    }
+                    .frame(maxWidth: .infinity, maxHeight: .infinity, alignment: .leading)
+                }
+                .frame(width: indicatorSize, height: notchSize.height)
+
+            Color.clear
+                .frame(width: notchSize.width, height: notchSize.height)
+
+            Color.clear
+                .frame(width: indicatorSize, height: notchSize.height)
+        }
+        .frame(width: baseWidth, height: notchSize.height)
+        .padding(.horizontal, horizontalPadding)
+        .background(Color.black)
+        .clipShape(
+            NotchShape(
+                topCornerRadius: cornerRadiusInsets.closed.top,
+                bottomCornerRadius: cornerRadiusInsets.closed.bottom
+            )
+        )
+        .frame(width: totalWidth, height: notchSize.height)
+        .animation(.spring(response: 0.45, dampingFraction: 0.85), value: state)
+        .drawingGroup()
+    }
+}
+
+#Preview {
+    VStack(spacing: 24) {
+        LockScreenLiveActivityOverlay(state: .locked, notchSize: CGSize(width: 220, height: 32))
+        LockScreenLiveActivityOverlay(state: .unlocking, notchSize: CGSize(width: 220, height: 32))
+    }
+    .padding()
+    .background(Color.gray.opacity(0.2))
+}
diff --git a/DynamicIsland/managers/LockScreenLiveActivityWindowManager.swift b/DynamicIsland/managers/LockScreenLiveActivityWindowManager.swift
new file mode 100644
index 0000000..e4aaa35
--- /dev/null
+++ b/DynamicIsland/managers/LockScreenLiveActivityWindowManager.swift
@@ -0,0 +1,127 @@
+//
+//  LockScreenLiveActivityWindowManager.swift
+//  DynamicIsland
+//
+//  Delegates the lock screen live activity layout to SkyLight so it remains visible when the display is locked.
+//
+
+import AppKit
+import Defaults
+import SkyLightWindow
+import SwiftUI
+
+@MainActor
+class LockScreenLiveActivityWindowManager {
+    static let shared = LockScreenLiveActivityWindowManager()
+
+    private var window: NSWindow?
+    private var hasDelegated = false
+    private var hideTask: Task<Void, Never>?
+
+    private init() {}
+
+    private func timestamp() -> String {
+        let formatter = DateFormatter()
+        formatter.dateFormat = "HH:mm:ss.SSS"
+        return formatter.string(from: Date())
+    }
+
+    private func frame(for notchSize: CGSize, on screen: NSScreen) -> NSRect {
+        let indicatorSize = max(0, notchSize.height - 12)
+        let horizontalPadding = cornerRadiusInsets.closed.bottom
+        let totalWidth = notchSize.width + (indicatorSize * 2) + (horizontalPadding * 2)
+
+        let screenFrame = screen.frame
+        let originX = screenFrame.origin.x + (screenFrame.width / 2) - (totalWidth / 2)
+        let originY = screenFrame.origin.y + screenFrame.height - notchSize.height
+
+        return NSRect(x: originX, y: originY, width: totalWidth, height: notchSize.height)
+    }
+
+    private func ensureWindow(notchSize: CGSize, screen: NSScreen) -> NSWindow {
+        if let window {
+            return window
+        }
+
+        let window = NSWindow(
+            contentRect: frame(for: notchSize, on: screen),
+            styleMask: [.borderless, .nonactivatingPanel],
+            backing: .buffered,
+            defer: false
+        )
+
+        window.isOpaque = false
+        window.backgroundColor = .clear
+        window.isReleasedWhenClosed = false
+        window.ignoresMouseEvents = true
+        window.hasShadow = false
+        window.level = NSWindow.Level(rawValue: Int(CGShieldingWindowLevel()))
+        window.collectionBehavior = [.canJoinAllSpaces, .stationary, .fullScreenAuxiliary]
+        window.alphaValue = 0
+
+        self.window = window
+        self.hasDelegated = false
+        return window
+    }
+
+    private func present(state: LockLiveActivityState) {
+        guard Defaults[.enableLockScreenLiveActivity] else {
+            hideImmediately()
+            return
+        }
+
+        guard let screen = NSScreen.main else {
+            print("[\(timestamp())] LockScreenLiveActivityWindowManager: no main screen available")
+            return
+        }
+
+        let notchSize = getClosedNotchSize(screen: screen.localizedName)
+        let window = ensureWindow(notchSize: notchSize, screen: screen)
+        let targetFrame = frame(for: notchSize, on: screen)
+        window.setFrame(targetFrame, display: true)
+
+        let overlay = LockScreenLiveActivityOverlay(state: state, notchSize: notchSize)
+        window.contentView = NSHostingView(rootView: overlay)
+
+        if !hasDelegated {
+            SkyLightOperator.shared.delegateWindow(window)
+            hasDelegated = true
+        }
+
+        window.alphaValue = 1
+        window.orderFrontRegardless()
+    }
+
+    func showLocked() {
+        hideTask?.cancel()
+        present(state: .locked)
+        print("[\(timestamp())] LockScreenLiveActivityWindowManager: showing locked state")
+    }
+
+    func showUnlockAndScheduleHide() {
+        hideTask?.cancel()
+        present(state: .unlocking)
+        print("[\(timestamp())] LockScreenLiveActivityWindowManager: showing unlock state")
+
+        hideTask = Task { [weak self] in
+            try? await Task.sleep(for: .seconds(max(Defaults[.waitInterval], 1.0)))
+            guard let self, !Task.isCancelled else { return }
+            await MainActor.run {
+                self.hideImmediately()
+            }
+        }
+    }
+
+    func hideImmediately() {
+        hideTask?.cancel()
+        hideTask = nil
+
+        guard let window else { return }
+
+        window.orderOut(nil)
+        window.alphaValue = 0
+        window.contentView = nil
+
+        print("[\(timestamp())] LockScreenLiveActivityWindowManager: HUD hidden")
+    }
+}
diff --git a/DynamicIsland/managers/LockScreenManager.swift b/DynamicIsland/managers/LockScreenManager.swift
index 9e63fb6..8e7bef1 100644
--- a/DynamicIsland/managers/LockScreenManager.swift
+++ b/DynamicIsland/managers/LockScreenManager.swift
@@ -83,6 +83,7 @@ class LockScreenManager: ObservableObject {
         // Show panel FIRST (creates and shows window on lock screen)
         print("[\(timestamp())] LockScreenManager: 🎵 Showing lock screen panel")
         LockScreenPanelManager.shared.showPanel()
+        LockScreenLiveActivityWindowManager.shared.showLocked()
         
         // THEN trigger lock icon in Dynamic Island (only if enabled in settings)
         if Defaults[.enableLockScreenLiveActivity] {
@@ -101,6 +102,7 @@ class LockScreenManager: ObservableObject {
         // Hide panel window immediately and synchronously
         print("[\(timestamp())] LockScreenManager: 🚪 Hiding panel window")
         LockScreenPanelManager.shared.hidePanel()
+        LockScreenLiveActivityWindowManager.shared.showUnlockAndScheduleHide()
         
         // Update state immediately
         if Defaults[.enableLockScreenLiveActivity] {