diff --git a/docs/Development-Plan.md b/docs/Development-Plan.md
index c641a06..d333845 100644
--- a/docs/Development-Plan.md
+++ b/docs/Development-Plan.md
@@ -294,13 +294,15 @@ Contract       Design          Plan（本文档）
   - 文件内私有 `DownloadProgressDelegate: URLSessionDownloadDelegate, @unchecked Sendable`，实现 `didWriteData:totalBytesWritten:totalBytesExpectedToWrite:`；通过 `session.download(from:delegate:)` 注入
   - 完成时兜底报 1.0（部分 server 不发 Content-Length 或末尾片段晚到，避免进度条停在 99%）
   - RootViewController 烟雾测试用 `ProgressTicker` 节流到 10% 阶梯打印；BuildProject 通过
-- [ ] **1.14.d** 实现 `Source/WebView/WebContainerViewController.swift`（基类）
-  - 持有 `BridgedWebView` + `BridgeBus`
-  - 16:9 比例布局：屏幕比 < 16:9 用宽度撑满上下黑边；屏幕比 > 16:9 用高度撑满左右黑边
-  - **Splash 状态层**：与 LaunchScreen 同款启动图 + UIProgressView + 状态文字标签（"拼命启动中..." / "下载更新中 XX%" / "网络异常重试中"）
-  - `viewDidLoad` 内串：`ResourceUnzipper.ensureReady() → RemoteConfigClient.fetch → VersionResolver.resolve → LobbyZipUpgrader.upgradeIfNeeded(onProgress: 更新 UIProgressView) → loadFileURL(lobbyIndex)`
-  - 无升级路径走快路（< 200 ms），有升级路径显示 progress UI
-  - 实现 `webViewWebContentProcessDidTerminate:` 退避 reload（Design §3.6）
+- [x] **1.14.d** 实现 `Source/WebView/WebContainerViewController.swift`（基类）
+  - 持有 `BridgedWebView`（通过其再持有 `BridgeBus`）+ 文件内私有 `SplashOverlay`
+  - 16:9 letterbox：aspectRatio(16:9) + widthMax/heightMax required + widthFill/heightFill .defaultLow + centerXY 居中。屏幕比 < 16:9 → 上下黑边；> 16:9 → 左右黑边
+  - **SplashOverlay**：UIImageView(SplashImage, scaleAspectFill) + UIProgressView + UILabel；`update(text:progress:)` 切换状态机
+  - 启动流水线 `runBootPipeline()`：ensureReady → "拉取配置中..." → RemoteConfigClient.fetch → 分支（.shortText / .parsed → showmessage / IPA 升级 / LobbyZipUpgrader.upgradeIfNeeded with onProgress hop 到 MainActor）→ "加载大厅..." → `loadFileURL(SandboxPaths.lobbyIndex, allowingReadAccessTo: lobbyRoot)`
+  - 终态弹窗：`showBlockingAlert`（短文本 / showmessage，永停）/ `showIPAUpgradeAlert`（确定 → openURL，永停）/ `showFatalAlert`（重试 → 重跑 pipeline）
+  - 横屏锁定 + statusBar 显示，与契约 §4.2 一致
+  - **暂不实现**：`webViewWebContentProcessDidTerminate:` 退避 reload（移到 Phase 3 网络层时一并处理）
+  - BuildProject 通过
 - [ ] **1.14.e** WebView 加载完成后淡出 splash
   - `webView(_:didFinish:)` 内 `UIView.animate(duration: 0.3)` splash.alpha = 0 → `removeFromSuperview`
   - 期间 webView 已渲染好 H5 大厅，无白屏闪烁
@@ -799,7 +801,7 @@ H5 调 `OpenurlTitleData` 打开弹层 WebView，弹层内 H5 用 `window.settin
 - [x] 1.14.a AppIcon 替换 Xcode 默认空模板（iPad / 1024 缺失留 Phase 10 polish）
 - [x] 1.14.b LaunchScreen 改启动图（SplashImage 全屏 scaleAspectFill，竖图横屏裁剪折衷）
 - [x] 1.14.c LobbyZipUpgrader 加 progress 回调（URLSessionDownloadDelegate，0.0…1.0）
-- [ ] 1.14.d WebContainerViewController（含 splash UI 状态层 + 16:9 letterbox + 启动流水线串接）
+- [x] 1.14.d WebContainerViewController（SplashOverlay + 16:9 letterbox + 启动流水线 + 三种 alert）
 - [ ] 1.14.e WebView didFinish 后淡出 splash
 - [ ] 1.15 VibratorHandler
 - [ ] 1.16 SceneDelegate → WebContainerViewController
diff --git a/ylgamehall/Source/WebView/WebContainerViewController.swift b/ylgamehall/Source/WebView/WebContainerViewController.swift
new file mode 100644
index 0000000..7210200
--- /dev/null
+++ b/ylgamehall/Source/WebView/WebContainerViewController.swift
@@ -0,0 +1,294 @@
+//
+//  WebContainerViewController.swift
+//  ylgamehall
+//
+//  H5 大厅承载容器：BridgedWebView 嵌入 + 16:9 letterbox + Splash 覆盖层
+//  + 启动流水线（ensureReady → fetch → resolve → upgrade → loadFileURL）。
+//  详见 docs/H5-Native-Implementation-Design.md §6.3.5。
+//
+
+import UIKit
+import WebKit
+
+public final class WebContainerViewController: UIViewController {
+
+    // MARK: - UI
+
+    private let bridgedWebView = BridgedWebView()
+    private let splash = SplashOverlay()
+
+    // MARK: - Boot pipeline 内部错误分类
+    //
+    // 用 enum 区分"终态阻塞"与"系统级错误"：
+    // - shortText / ipaUpgrade 是运营杀手锏，弹窗后永停（无重试按钮）
+    // - 其它（网络 / 解析 / 解压 / 下载失败）→ showFatalAlert，提供重试
+
+    private enum BootError: Error {
+        /// 短文本响应 或 showmessage 非空：契约 §3.2 运营杀手锏 #1/#2
+        case operationalMessage(String)
+        /// IPA 需要升级，弹窗 + Safari 外链
+        case ipaUpgradeRequired(downloadURL: String)
+    }
+
+    // MARK: - Lifecycle
+
+    public override func viewDidLoad() {
+        super.viewDidLoad()
+        view.backgroundColor = .black
+
+        setupBridgedWebView()
+        setupSplash()
+
+        bridgedWebView.webView.navigationDelegate = self
+
+        Task { @MainActor in
+            await runBootPipeline()
+        }
+    }
+
+    public override var supportedInterfaceOrientations: UIInterfaceOrientationMask { .landscape }
+    public override var preferredInterfaceOrientationForPresentation: UIInterfaceOrientation { .landscapeRight }
+    public override var prefersStatusBarHidden: Bool { false }
+
+    // MARK: - 16:9 letterbox 布局
+    //
+    // H5 设计分辨率 1280×720（16:9）。设备比例与 16:9 不匹配时用黑边补齐：
+    // - 比 16:9 宽（如现代 iPhone 横屏 2.16:1）→ 左右黑边
+    // - 比 16:9 窄（如 iPad 4:3）→ 上下黑边
+    //
+    // 约束策略：
+    //   required：aspect = 16:9，width ≤ view.width，height ≤ view.height
+    //   low：    width = view.width，height = view.height（尽量撑满）
+    //   居中：   centerX / centerY
+    // Auto Layout 会自动选择"短边贴边、长边居中"的解。
+
+    private func setupBridgedWebView() {
+        bridgedWebView.translatesAutoresizingMaskIntoConstraints = false
+        view.addSubview(bridgedWebView)
+
+        let aspect = bridgedWebView.widthAnchor.constraint(
+            equalTo: bridgedWebView.heightAnchor,
+            multiplier: 16.0 / 9.0
+        )
+        let widthMax = bridgedWebView.widthAnchor.constraint(lessThanOrEqualTo: view.widthAnchor)
+        let heightMax = bridgedWebView.heightAnchor.constraint(lessThanOrEqualTo: view.heightAnchor)
+        let widthFill = bridgedWebView.widthAnchor.constraint(equalTo: view.widthAnchor)
+        let heightFill = bridgedWebView.heightAnchor.constraint(equalTo: view.heightAnchor)
+        widthFill.priority = .defaultLow
+        heightFill.priority = .defaultLow
+
+        NSLayoutConstraint.activate([
+            bridgedWebView.centerXAnchor.constraint(equalTo: view.centerXAnchor),
+            bridgedWebView.centerYAnchor.constraint(equalTo: view.centerYAnchor),
+            aspect, widthMax, heightMax, widthFill, heightFill
+        ])
+    }
+
+    private func setupSplash() {
+        splash.translatesAutoresizingMaskIntoConstraints = false
+        view.addSubview(splash)
+        NSLayoutConstraint.activate([
+            splash.topAnchor.constraint(equalTo: view.topAnchor),
+            splash.bottomAnchor.constraint(equalTo: view.bottomAnchor),
+            splash.leadingAnchor.constraint(equalTo: view.leadingAnchor),
+            splash.trailingAnchor.constraint(equalTo: view.trailingAnchor)
+        ])
+        splash.update(text: "拼命启动中...", progress: nil)
+    }
+
+    // MARK: - Boot pipeline
+
+    private func runBootPipeline() async {
+        // 重新进入 pipeline 时（重试路径）：重置 splash 并显示
+        splash.isHidden = false
+        splash.update(text: "拼命启动中...", progress: nil)
+
+        do {
+            try await runBootPipelineSteps()
+        } catch BootError.operationalMessage(let msg) {
+            showBlockingAlert(message: msg)
+        } catch BootError.ipaUpgradeRequired(let dl) {
+            showIPAUpgradeAlert(downloadURL: dl)
+        } catch {
+            showFatalAlert(error: error)
+        }
+    }
+
+    private func runBootPipelineSteps() async throws {
+        // 1. 首装解压（仅首次安装走真正的 unzip；之后 fileExists 短路 ≤ 1ms）
+        try await ResourceUnzipper.shared.ensureReady()
+
+        // 2. 拉远端渠道配置
+        splash.update(text: "拉取配置中...", progress: nil)
+        let outcome = try await RemoteConfigClient.shared.fetch()
+
+        switch outcome {
+        case .shortText(let msg):
+            // 运营杀手锏 #1：运营把整段服务端响应替换为短文本，前端弹窗永停
+            throw BootError.operationalMessage(msg)
+
+        case .parsed(let cfg):
+            let bc = BundleConfig.shared
+            let resolved = VersionResolver.resolve(
+                config: cfg,
+                agentId: bc.agent,
+                channelId: bc.channel,
+                marketId: bc.market,
+                gameId: bc.gameId
+            )
+
+            // 3. 运营杀手锏 #2：showmessage 非空 → 弹窗永停
+            if let msg = resolved.showmessage, !msg.isEmpty {
+                throw BootError.operationalMessage(msg)
+            }
+
+            // 4. IPA 升级（远端 appVersion > 本地）：弹窗 + Safari 外链永停
+            if resolved.appVersion > LocalVersionReader.localAppVersion,
+               let dl = resolved.appDownload {
+                throw BootError.ipaUpgradeRequired(downloadURL: dl)
+            }
+
+            // 5. H5 zip 升级（远端 gameVersion > 本地）：进度条实时更新
+            //    LobbyZipUpgrader 的 onProgress 由 URLSession delegate 在后台队列调度，
+            //    必须显式 hop 到 MainActor 才能动 splash UI。
+            _ = try await LobbyZipUpgrader.shared.upgradeIfNeeded(
+                resolved: resolved,
+                onProgress: { [weak self] p in
+                    Task { @MainActor in
+                        self?.splash.update(
+                            text: String(format: "下载更新中 %d%%", Int(p * 100)),
+                            progress: p
+                        )
+                    }
+                }
+            )
+        }
+
+        // 6. 加载本地 H5（allowingReadAccessTo 必须给 lobbyRoot 才能跨目录引用资源）
+        splash.update(text: "加载大厅...", progress: nil)
+        bridgedWebView.webView.loadFileURL(
+            SandboxPaths.lobbyIndex,
+            allowingReadAccessTo: SandboxPaths.lobbyRoot
+        )
+    }
+
+    // MARK: - Alerts (terminal / retry states)
+
+    private var appDisplayName: String {
+        (Bundle.main.infoDictionary?["CFBundleDisplayName"] as? String)
+            ?? (Bundle.main.infoDictionary?["CFBundleName"] as? String)
+            ?? "提示"
+    }
+
+    private func showBlockingAlert(message: String) {
+        let alert = UIAlertController(
+            title: "\(appDisplayName) 提醒",
+            message: message,
+            preferredStyle: .alert
+        )
+        alert.addAction(UIAlertAction(title: "确定", style: .default))
+        present(alert, animated: true)
+    }
+
+    private func showIPAUpgradeAlert(downloadURL: String) {
+        let alert = UIAlertController(
+            title: "需要升级",
+            message: "检测到新版本，请前往下载安装。",
+            preferredStyle: .alert
+        )
+        alert.addAction(UIAlertAction(title: "确定", style: .default) { _ in
+            if let url = URL(string: downloadURL) {
+                UIApplication.shared.open(url)
+            }
+        })
+        present(alert, animated: true)
+    }
+
+    private func showFatalAlert(error: Error) {
+        let alert = UIAlertController(
+            title: "启动失败",
+            message: "\(error)",
+            preferredStyle: .alert
+        )
+        alert.addAction(UIAlertAction(title: "重试", style: .default) { [weak self] _ in
+            Task { @MainActor in
+                await self?.runBootPipeline()
+            }
+        })
+        present(alert, animated: true)
+    }
+}
+
+// MARK: - WKNavigationDelegate
+
+extension WebContainerViewController: WKNavigationDelegate {
+    public func webView(_ webView: WKWebView, didFinish navigation: WKNavigation!) {
+        // Phase 1.14.d 阶段：直接隐藏 splash（无动画）
+        // Phase 1.14.e 将替换为 UIView.animate(0.3) 淡出 + removeFromSuperview
+        splash.isHidden = true
+    }
+}
+
+// MARK: - SplashOverlay
+//
+// 与 LaunchScreen 同款启动图 + UIProgressView + 状态文字标签的复合 view。
+// 单文件私有：仅 WebContainerViewController 使用；若 Phase 6 子游戏容器复用，再抽出。
+
+private final class SplashOverlay: UIView {
+
+    private let imageView = UIImageView()
+    private let progressView = UIProgressView(progressViewStyle: .default)
+    private let label = UILabel()
+
+    init() {
+        super.init(frame: .zero)
+        backgroundColor = .black
+
+        imageView.contentMode = .scaleAspectFill
+        imageView.image = UIImage(named: "SplashImage")
+        imageView.clipsToBounds = true
+        imageView.translatesAutoresizingMaskIntoConstraints = false
+        addSubview(imageView)
+
+        label.textColor = .white
+        label.font = .systemFont(ofSize: 14, weight: .medium)
+        label.textAlignment = .center
+        label.numberOfLines = 1
+        label.translatesAutoresizingMaskIntoConstraints = false
+        addSubview(label)
+
+        progressView.translatesAutoresizingMaskIntoConstraints = false
+        progressView.isHidden = true
+        addSubview(progressView)
+
+        NSLayoutConstraint.activate([
+            imageView.topAnchor.constraint(equalTo: topAnchor),
+            imageView.bottomAnchor.constraint(equalTo: bottomAnchor),
+            imageView.leadingAnchor.constraint(equalTo: leadingAnchor),
+            imageView.trailingAnchor.constraint(equalTo: trailingAnchor),
+
+            label.centerXAnchor.constraint(equalTo: centerXAnchor),
+            label.bottomAnchor.constraint(equalTo: safeAreaLayoutGuide.bottomAnchor, constant: -32),
+            label.leadingAnchor.constraint(greaterThanOrEqualTo: leadingAnchor, constant: 24),
+            label.trailingAnchor.constraint(lessThanOrEqualTo: trailingAnchor, constant: -24),
+
+            progressView.centerXAnchor.constraint(equalTo: centerXAnchor),
+            progressView.bottomAnchor.constraint(equalTo: label.topAnchor, constant: -12),
+            progressView.widthAnchor.constraint(equalTo: widthAnchor, multiplier: 0.45)
+        ])
+    }
+
+    @available(*, unavailable)
+    required init?(coder: NSCoder) { fatalError("SplashOverlay does not support init(coder:)") }
+
+    func update(text: String, progress: Double?) {
+        label.text = text
+        if let p = progress {
+            progressView.isHidden = false
+            progressView.setProgress(Float(p), animated: true)
+        } else {
+            progressView.isHidden = true
+            progressView.setProgress(0, animated: false)
+        }
+    }
+}