diff --git a/ylgamehall/SceneDelegate.swift b/ylgamehall/SceneDelegate.swift
index 8c595d2..1ea7e4a 100644
--- a/ylgamehall/SceneDelegate.swift
+++ b/ylgamehall/SceneDelegate.swift
@@ -13,7 +13,10 @@ final class SceneDelegate: UIResponder, UIWindowSceneDelegate {
                willConnectTo session: UISceneSession,
                options connectionOptions: UIScene.ConnectionOptions) {
         guard let windowScene = scene as? UIWindowScene else { return }
-        let window = UIWindow(windowScene: windowScene)
+        // 使用 RecordingAwareWindow（UIWindow 子类）以便录音浮层旁路监听 touch
+        // 事件。默认行为与 UIWindow 完全一致，仅在 RecordingPresenter 注册
+        // touchObserver 后才有额外行为。详见 Source/Audio/RecordingAwareWindow.swift
+        let window = RecordingAwareWindow(windowScene: windowScene)
 
         // 用 UINavigationController 承载大厅，便于 Phase 6 push 子游戏 / Phase 7 push 弹层。
         // 栈深约束 ≤ 3（Design §2.4.3），由 AppCoordinator 在 push 处守门。
diff --git a/ylgamehall/Source/Audio/RecordingAwareWindow.swift b/ylgamehall/Source/Audio/RecordingAwareWindow.swift
new file mode 100644
index 0000000..8ae5b89
--- /dev/null
+++ b/ylgamehall/Source/Audio/RecordingAwareWindow.swift
@@ -0,0 +1,43 @@
+//
+//  RecordingAwareWindow.swift
+//  ylgamehall
+//
+//  UIWindow 子类：提供 touch 事件的旁路监听通道，供录音浮层用。
+//
+//  ## 为何需要
+//
+//  H5 麦克风按钮按下时触发 prepareaudio → 录音浮层在「按住状态下」中途
+//  弹出。iOS 的 touch 事件流走 view hit-test 链，**in-flight touch 不会
+//  传给中途加入的 view**，新弹浮层 view 收不到 touchesEnded，导致用户松
+//  手时 Native 检测不到。
+//
+//  必须在 UIWindow 层旁路截获 touch，绕开 view hit-test 链的不确定性。
+//  daoqi msext `CustomWindow.m` 同款思路（msext 用 NotificationCenter
+//  post `nScreenTouch` 通知，新外壳改用 closure 注入）。
+//
+
+import UIKit
+
+/// 录音感知 UIWindow。
+///
+/// **默认行为完全不变**：未设置 `touchObserver` 时，`sendEvent` 直接调
+/// `super`，所有 touch 事件按正常 hit-test 链分发。设置 `touchObserver`
+/// 后，window 在每次 `.touches` event 时把 event 转给 observer，**触发
+/// 时机在 `super.sendEvent` 之后，不阻塞业务 view 的事件分发**。
+public final class RecordingAwareWindow: UIWindow {
+
+    /// 全局 touch event 观察 closure。
+    ///
+    /// - 不为 nil 时，每次 `.touches` event 触发该 closure
+    /// - 录音组件在 start 时设置、stop / cancel 时清空
+    /// - **必须主线程访问**：UIWindow.sendEvent 由 UIKit 主线程调，
+    ///   读写 closure 在主线程串行，无需加锁
+    public static var touchObserver: ((UIEvent) -> Void)?
+
+    public override func sendEvent(_ event: UIEvent) {
+        super.sendEvent(event)
+        if event.type == .touches {
+            Self.touchObserver?(event)
+        }
+    }
+}
diff --git a/ylgamehall/Source/Audio/RecordingOverlay.swift b/ylgamehall/Source/Audio/RecordingOverlay.swift
new file mode 100644
index 0000000..1a813e2
--- /dev/null
+++ b/ylgamehall/Source/Audio/RecordingOverlay.swift
@@ -0,0 +1,92 @@
+//
+//  RecordingOverlay.swift
+//  ylgamehall
+//
+//  录音浮层 SwiftUI 视图（**UI 内部实现**，不影响 H5 契约）。
+//
+//  按 CLAUDE.md 「原则 B 原生内部自由」，UI 设计与 daoqi 不一致：
+//  - daoqi 是 ChatVoiceRecorderVC.xib 125×130 老式弹窗 + UIImageView 波形 +
+//    "录音剩下:Ns秒" 文本
+//  - 新外壳改用现代 SwiftUI：半透明黑底胶囊 + SF Symbols 麦克风 + 光晕动画 +
+//    倒计时文本
+//
+
+import SwiftUI
+
+struct RecordingOverlay: View {
+
+    @ObservedObject var recorder: VoiceRecorder
+
+    /// 剩余秒数 (0 ~ maxDuration)
+    private var remaining: TimeInterval {
+        max(0, VoiceRecorder.maxDuration - recorder.elapsed)
+    }
+
+    /// 倒计时提示，仅最后 10 秒显示秒数（对齐 daoqi
+    /// ChatVoiceRecorderVC.m:233-236 「剩 10s 显示倒计时」逻辑）。
+    private var hint: String {
+        if remaining < 10 {
+            "录音剩下:\(Int(ceil(remaining)))秒"
+        } else {
+            "松开发送"
+        }
+    }
+
+    private var hintColor: Color {
+        remaining < 10 ? .yellow : .white.opacity(0.85)
+    }
+
+    var body: some View {
+        ZStack {
+            // 全屏背景：阻止下层 H5 接收点击。touch 事件由
+            // RecordingAwareWindow.touchObserver 旁路捕获，与本 view 的
+            // hit-test 无关；这里只是视觉上的"接管屏幕"
+            Color.black.opacity(0.001)
+                .frame(maxWidth: .infinity, maxHeight: .infinity)
+                .contentShape(Rectangle())
+
+            VStack(spacing: 12) {
+                MicrophoneWaveform(power: recorder.averagePower)
+                    .frame(width: 72, height: 72)
+
+                Text(hint)
+                    .font(.system(size: 13, weight: .medium))
+                    .foregroundStyle(hintColor)
+            }
+            .padding(.horizontal, 24)
+            .padding(.vertical, 20)
+            .background(
+                .black.opacity(0.7),
+                in: RoundedRectangle(cornerRadius: 16, style: .continuous)
+            )
+        }
+        .ignoresSafeArea()
+    }
+}
+
+/// 麦克风波形指示：根据 averagePower 缩放光晕圆。
+private struct MicrophoneWaveform: View {
+    let power: Float    // -160 ~ 0 dB
+
+    /// dB 映射到 [0, 1]：截断 [-50, 0]，等距归一化。
+    /// -50 dB 视作静音底噪，0 dB 视作峰值。
+    private var level: CGFloat {
+        let clamped = max(-50, min(0, power))
+        return CGFloat((clamped + 50) / 50)
+    }
+
+    var body: some View {
+        ZStack {
+            Circle()
+                .fill(.white.opacity(0.15 + Double(level) * 0.25))
+                .scaleEffect(0.7 + level * 0.5)
+                .animation(.easeOut(duration: 0.15), value: level)
+
+            Image(systemName: "mic.fill")
+                .resizable()
+                .aspectRatio(contentMode: .fit)
+                .foregroundStyle(.white)
+                .frame(width: 36, height: 36)
+        }
+    }
+}
diff --git a/ylgamehall/Source/Audio/RecordingPresenter.swift b/ylgamehall/Source/Audio/RecordingPresenter.swift
new file mode 100644
index 0000000..d4b30c8
--- /dev/null
+++ b/ylgamehall/Source/Audio/RecordingPresenter.swift
@@ -0,0 +1,104 @@
+//
+//  RecordingPresenter.swift
+//  ylgamehall
+//
+//  录音 UI 呈现器：组装 VoiceRecorder + RecordingOverlay + RecordingAwareWindow
+//  三方协作，对外暴露单一 `start` 入口。
+//
+//  内部职责：
+//   1. 创建 VoiceRecorder 启动录音
+//   2. 把 RecordingOverlay 挂载到 hostVC.view 全屏覆盖
+//   3. 注册 RecordingAwareWindow.touchObserver 监听松手
+//   4. 触发松手 / 60s 自动停 → recorder.stop → onFinish → 清理 overlay +
+//      observer
+//
+//  调用方（Phase 3.E prepareaudio handler）：
+//   ```swift
+//   let fileName = VoiceRecorder.currentTimeString()
+//   try RecordingPresenter.start(on: hostVC, fileName: fileName) { wavURL, _ in
+//       // 录音完成；调用方负责后续转码 / 上传 / 反向 callback
+//   }
+//   ```
+//
+
+import UIKit
+import SwiftUI
+
+public enum RecordingPresenter {
+
+    /// 当前进行中会话；同时只能有一个录音
+    private static var active: ActiveSession?
+
+    /// 启动录音 + 显示浮层 + 注册触摸监听。
+    ///
+    /// 若已有进行中会话，会先 `cancel()` 旧的再开新的（防御性，正常流程下
+    /// 不应发生——H5 prepareaudio 不会在录音中再次调用）。
+    ///
+    /// - Throws: VoiceRecorder.RecorderError，调用方应捕获并向用户提示
+    public static func start(
+        on hostVC: UIViewController,
+        fileName: String,
+        onFinish: @escaping (URL, TimeInterval) -> Void
+    ) throws {
+        // 防御：清理任何遗留会话
+        cancelActive()
+
+        let recorder = VoiceRecorder()
+
+        try recorder.start(fileName: fileName) { wavURL, duration in
+            // 完成回调：清理 UI + observer，转发给业务
+            Self.teardown()
+            onFinish(wavURL, duration)
+        }
+
+        // 挂载 overlay 到 hostVC.view 全屏覆盖
+        let overlayHost = UIHostingController(rootView: RecordingOverlay(recorder: recorder))
+        overlayHost.view.backgroundColor = .clear
+        hostVC.addChild(overlayHost)
+        overlayHost.view.translatesAutoresizingMaskIntoConstraints = false
+        hostVC.view.addSubview(overlayHost.view)
+        NSLayoutConstraint.activate([
+            overlayHost.view.topAnchor.constraint(equalTo: hostVC.view.topAnchor),
+            overlayHost.view.bottomAnchor.constraint(equalTo: hostVC.view.bottomAnchor),
+            overlayHost.view.leadingAnchor.constraint(equalTo: hostVC.view.leadingAnchor),
+            overlayHost.view.trailingAnchor.constraint(equalTo: hostVC.view.trailingAnchor),
+        ])
+        overlayHost.didMove(toParent: hostVC)
+
+        active = ActiveSession(recorder: recorder, overlayHost: overlayHost)
+
+        // 注册触摸观察：任一 touch ended/cancelled → 停止录音
+        RecordingAwareWindow.touchObserver = { [weak recorder] event in
+            guard let recorder, let touches = event.allTouches else { return }
+            let anyEnded = touches.contains {
+                $0.phase == .ended || $0.phase == .cancelled
+            }
+            if anyEnded {
+                recorder.stop()
+            }
+        }
+    }
+
+    /// 外部强制取消（如 H5 业务退出 / 应用切到后台）。
+    public static func cancelActive() {
+        active?.recorder.cancel()
+        teardown()
+    }
+
+    private static func teardown() {
+        active?.removeOverlay()
+        active = nil
+        RecordingAwareWindow.touchObserver = nil
+    }
+
+    private struct ActiveSession {
+        let recorder: VoiceRecorder
+        let overlayHost: UIHostingController<RecordingOverlay>
+
+        func removeOverlay() {
+            overlayHost.willMove(toParent: nil)
+            overlayHost.view.removeFromSuperview()
+            overlayHost.removeFromParent()
+        }
+    }
+}
diff --git a/ylgamehall/Source/Audio/VoiceRecorder.swift b/ylgamehall/Source/Audio/VoiceRecorder.swift
new file mode 100644
index 0000000..3cacf6c
--- /dev/null
+++ b/ylgamehall/Source/Audio/VoiceRecorder.swift
@@ -0,0 +1,188 @@
+//
+//  VoiceRecorder.swift
+//  ylgamehall
+//
+//  录音业务对象。管理 AVAudioRecorder + AudioSession + 实时音量/时长状态。
+//
+//  - 不负责 UI（RecordingOverlay 通过 @ObservedObject 订阅 @Published 状态）
+//  - 不负责触摸捕获（RecordingAwareWindow.touchObserver 实现，由
+//    RecordingPresenter 串接）
+//
+//  契约：docs/H5-Native-Contract.md §3.1 ［4］prepareaudio 的录音子链路。
+//
+
+import AVFoundation
+import Combine    // ObservableObject / @Published：SwiftUI 数据绑定标准用法。
+                  // 项目最低 iOS 15.6，无 iOS 17+ `@Observable` 宏可替代。
+                  // CLAUDE.md「避免 Combine」指禁止用 Publisher 链替代 async/await，
+                  // 不禁止 ObservableObject。
+import os.log
+
+/// 录音状态机 + AVAudioRecorder 包装。
+public final class VoiceRecorder: ObservableObject {
+
+    private static let log = Logger(subsystem: "ylgamehall", category: "VoiceRecorder")
+
+    /// 最大录音时长 (秒)，对齐 daoqi VoiceRecorderBaseVC.h:15 `kDefaultMaxRecordTime`。
+    public static let maxDuration: TimeInterval = 60
+
+    /// 录音参数（8kHz / 16bit / mono PCM）。对齐 daoqi
+    /// VoiceRecorderBaseVC.m:116-128 `getAudioRecorderSettingDict`。
+    /// AMR-NB 编码硬要求 8kHz mono；改动会让 amrFileCodec.mm `ReadPCMFrame`
+    /// 拿不到完整 160 sample 帧，转码失败。
+    private static let recorderSettings: [String: Any] = [
+        AVSampleRateKey: 8000.0 as Float,
+        AVFormatIDKey: UInt32(kAudioFormatLinearPCM),
+        AVLinearPCMBitDepthKey: 16,
+        AVNumberOfChannelsKey: 1,
+    ]
+
+    private var recorder: AVAudioRecorder?
+    private var timer: Timer?
+    private var startTime: Date?
+    private var onFinishCallback: ((URL, TimeInterval) -> Void)?
+    private var recordingFileURL: URL?
+
+    /// 实时音量峰值 (~-160 ~ 0 dB)；UI 用作波形动画。
+    @Published public private(set) var averagePower: Float = -160
+
+    /// 已录制秒数（0 ~ maxDuration）。
+    @Published public private(set) var elapsed: TimeInterval = 0
+
+    public init() {}
+
+    public enum RecorderError: Error, Sendable {
+        case sessionFailed(String)
+        case recorderCreateFailed(String)
+        case startFailed
+    }
+
+    /// 启动录音。调用前应已获得麦克风权限（由 prepareaudio handler 保证）。
+    ///
+    /// - Parameters:
+    ///   - fileName: wav 文件名（不含 .wav 扩展），对齐 daoqi `getCurrentTimeString` 产物
+    ///   - onFinish: 完成回调 (wavURL, durationSec)。durationSec 是 `Date.now -
+    ///     startTime`，**不**用作 `getaudiourl.time` 字段；Phase 3.E
+    ///     prepareaudio 实现里会用 AVAudioPlayer 重读 wav duration 再 round
+    ///     取整秒，对齐 daoqi NewRootVC.m:1892-1893 行为
+    public func start(
+        fileName: String,
+        onFinish: @escaping (URL, TimeInterval) -> Void
+    ) throws {
+        // AudioSession 配置（对齐 daoqi ChatVoiceRecorderVC.m:122-126）
+        let session = AVAudioSession.sharedInstance()
+        do {
+            try session.setCategory(.playAndRecord, options: [.defaultToSpeaker])
+            try session.setActive(true)
+        } catch {
+            throw RecorderError.sessionFailed(error.localizedDescription)
+        }
+
+        let wavURL = Self.wavFileURL(named: fileName)
+        try? FileManager.default.removeItem(at: wavURL)
+
+        let r: AVAudioRecorder
+        do {
+            r = try AVAudioRecorder(url: wavURL, settings: Self.recorderSettings)
+        } catch {
+            throw RecorderError.recorderCreateFailed(error.localizedDescription)
+        }
+        r.isMeteringEnabled = true
+        guard r.prepareToRecord(), r.record() else {
+            throw RecorderError.startFailed
+        }
+
+        self.recorder = r
+        self.recordingFileURL = wavURL
+        self.onFinishCallback = onFinish
+        self.startTime = Date()
+        self.elapsed = 0
+        self.averagePower = -160
+
+        startTimer()
+        Self.log.debug("start file=\(fileName, privacy: .public)")
+    }
+
+    /// 停止录音并触发 onFinish。已停止状态下重复调用是 no-op。
+    public func stop() {
+        guard let r = recorder, r.isRecording else { return }
+        let actualDuration = elapsed
+        r.stop()
+        let wavURL = recordingFileURL
+        let cb = onFinishCallback
+
+        cleanup()
+
+        if let wavURL, let cb {
+            Self.log.debug("stop duration=\(actualDuration, privacy: .public)s")
+            cb(wavURL, actualDuration)
+        }
+    }
+
+    /// 取消录音并删除文件，**不**触发 onFinish。
+    public func cancel() {
+        guard let r = recorder else { return }
+        if r.isRecording { r.stop() }
+        if let url = recordingFileURL {
+            try? FileManager.default.removeItem(at: url)
+        }
+        cleanup()
+        Self.log.debug("cancel")
+    }
+
+    private func cleanup() {
+        stopTimer()
+        try? AVAudioSession.sharedInstance().setActive(false)
+        recorder = nil
+        recordingFileURL = nil
+        onFinishCallback = nil
+        startTime = nil
+    }
+
+    // MARK: - 计时器（0.1s tick，更新音量峰值 + 检测 60s 上限）
+
+    private func startTimer() {
+        let t = Timer(timeInterval: 0.1, repeats: true) { [weak self] _ in
+            MainActor.assumeIsolated { self?.tick() }
+        }
+        RunLoop.main.add(t, forMode: .common)
+        self.timer = t
+    }
+
+    private func stopTimer() {
+        timer?.invalidate()
+        timer = nil
+    }
+
+    private func tick() {
+        guard let r = recorder, r.isRecording, let start = startTime else { return }
+        r.updateMeters()
+        averagePower = r.averagePower(forChannel: 0)
+        elapsed = Date().timeIntervalSince(start)
+
+        if elapsed >= Self.maxDuration {
+            stop()
+        }
+    }
+
+    // MARK: - 沙盒文件路径
+
+    /// 录音 wav 写入路径。对齐 daoqi VoiceRecorderBaseVC.m:62-64
+    /// `getCacheDirectory`（实际返回 NSDocumentDirectory[0]，不是 Caches/）。
+    private static func wavFileURL(named name: String) -> URL {
+        FileManager.default.urls(for: .documentDirectory, in: .userDomainMask)[0]
+            .appendingPathComponent(name)
+            .appendingPathExtension("wav")
+    }
+
+    // MARK: - 公用工具
+
+    /// 生成 `yyyyMMddHHmmss` 时间戳字符串。对齐 daoqi
+    /// VoiceRecorderBaseVC.m:50-54 `getCurrentTimeString`。
+    public static func currentTimeString() -> String {
+        let f = DateFormatter()
+        f.locale = Locale(identifier: "en_US_POSIX")
+        f.dateFormat = "yyyyMMddHHmmss"
+        return f.string(from: Date())
+    }
+}