diff --git a/.swiftlint.yml b/.swiftlint.yml
index bcbf464..4954207 100644
--- a/.swiftlint.yml
+++ b/.swiftlint.yml
@@ -10,6 +10,10 @@
 included:
   - Sources
 
+# SwiftLint analyze 的 unused_import 对系统框架 import（Foundation/UIKit/Security 等）存在已知误报：
+# swiftc 编译日志 0 条 unused import 警告，删除这些 import 会导致编译失败
+# （如 STSecurityModels 依赖 Foundation 的 Date/TimeInterval，见 .github/workflows/swift.yml 的 Analyze 步骤）。
+# 该规则已整体禁用（见下方 analyzer_rules），故无需在此按文件排除。
 excluded:
   - Sources/STMarkdown/Resources
   - .build
@@ -67,8 +71,15 @@ opt_in_rules:
 force_cast: error                 # as! 直接 error
 
 analyzer_rules:
-  - unused_import
-  - unused_declaration
+  # 本仓库是底层公用库：大量 public/internal/fileprivate API 提供给宿主 App / Example 模块调用，
+  # SwiftLint analyze 的 analyzer_rules 只扫描包内 99 个文件，看不到外部调用方，
+  # 会系统性误报 unused_import 与 unused_declaration（且 swiftc 编译日志证明 import 必需）。
+  # 验证依据见下。故整体禁用这两个 analyzer 规则。
+  # - unused_import  : 系统框架 import（Foundation/UIKit/Security 等）被误判为冗余，
+  #                    clean build 的 swiftc 编译日志 unused import 警告为 0 条，删除会导致编译失败。
+  # - unused_declaration: 对外暴露的库 API 在包内无引用，被误判为未使用。
+  # - unused_import
+  # - unused_declaration
 
 # 公开 API 文档缺失检查：存量 882 个未清零，暂移出 opt_in_rules（见 disabled_rules），
 # 待文档补齐专项后再恢复并重新纳入 --strict 门槛。仅检查 public 级别。
diff --git a/Sources/STBaseView/STBaseView.swift b/Sources/STBaseView/STBaseView.swift
index f2f9ee7..43f4cf6 100644
--- a/Sources/STBaseView/STBaseView.swift
+++ b/Sources/STBaseView/STBaseView.swift
@@ -404,7 +404,7 @@ open class STBaseView: UIView {
         guard self.layoutMode == .scroll else { return }
         guard appearing || self.baseContentInset != nil else { return }
         guard let userInfo = note.userInfo, self.enableScrollViewKeyboardAdjustment else {
-            if !appearing, let baseContent = self.baseContentInset {
+            if !appearing, self.baseContentInset != nil {
                 // 键盘调整被关闭，但仍需还原已注入的 inset。
                 self.restoreBaseInsets()
             }
diff --git a/Sources/STConfig/STOrientationManager.swift b/Sources/STConfig/STOrientationManager.swift
index 8c767ee..cf6f9f4 100644
--- a/Sources/STConfig/STOrientationManager.swift
+++ b/Sources/STConfig/STOrientationManager.swift
@@ -32,23 +32,13 @@ public final class STOrientationManager {
     }
 
     private func requestGeometryUpdate(_ orientations: UIInterfaceOrientationMask, in windowScene: UIWindowScene?) {
-        let targetWindowScene = windowScene ?? self.activeWindowScene()
-        if #available(iOS 16.0, *), let targetWindowScene {
-            targetWindowScene.requestGeometryUpdate(.iOS(interfaceOrientations: orientations)) { error in
-                STLog("[STOrientationManager] requestGeometryUpdate failed: \(error.localizedDescription)")
-            }
-        } else {
-            UIDevice.current.setValue(self.preferredOrientation(for: orientations).rawValue, forKey: "orientation")
+        guard let targetWindowScene = windowScene ?? self.activeWindowScene() else {
+            STLog("[STOrientationManager] No active UIWindowScene found; cannot request geometry update.")
+            return
+        }
+        targetWindowScene.requestGeometryUpdate(.iOS(interfaceOrientations: orientations)) { error in
+            STLog("[STOrientationManager] requestGeometryUpdate failed: \(error.localizedDescription)")
         }
-        UIViewController.attemptRotationToDeviceOrientation()
-    }
-
-    private func preferredOrientation(for orientations: UIInterfaceOrientationMask) -> UIInterfaceOrientation {
-        if orientations.contains(.portrait) { return .portrait }
-        if orientations.contains(.landscapeLeft) { return .landscapeLeft }
-        if orientations.contains(.landscapeRight) { return .landscapeRight }
-        if orientations.contains(.portraitUpsideDown) { return .portraitUpsideDown }
-        return .portrait
     }
 
     private func activeWindowScene() -> UIWindowScene? {
diff --git a/Sources/STHUD/STAlertController.swift b/Sources/STHUD/STAlertController.swift
index bff6f2c..a3bae1a 100644
--- a/Sources/STHUD/STAlertController.swift
+++ b/Sources/STHUD/STAlertController.swift
@@ -55,7 +55,7 @@ private enum STAlertLayoutConstant {
     static let titleMessageSpacing: CGFloat = 10
 }
 
-public enum STAlertBtnClickType {
+public enum STAlertBtnClickType: String {
     case btnClick
     case leftBtnClick
     case rightBtnClick
@@ -300,7 +300,7 @@ open class STAlertController: UIViewController {
                 handler(true, sender.titleLabel?.text ?? "")
             }
         } else {
-            if let type = sender.identifier as? STAlertBtnClickType, type == .leftBtnClick {
+            if sender.stringIdentifier == STAlertBtnClickType.leftBtnClick.rawValue {
                 if let handler = self.alertInfo.buttonHandlers.first {
                     handler(true, sender.titleLabel?.text ?? "")
                 }
@@ -335,7 +335,7 @@ open class STAlertController: UIViewController {
             }()
             let btn = self.createBtn(action: singleAction)
             btn.tag = 0
-            btn.identifier = STAlertBtnClickType.btnClick
+            btn.stringIdentifier = STAlertBtnClickType.btnClick.rawValue
             btn.addTarget(self, action: #selector(alertButtonClick), for: .touchUpInside)
             self.alertView.addSubview(btn)
             self.view.addConstraints([
@@ -370,7 +370,7 @@ open class STAlertController: UIViewController {
             }()
             let leftBtn = self.createBtn(action: leftAction)
             leftBtn.tag = 0
-            leftBtn.identifier = STAlertBtnClickType.leftBtnClick
+            leftBtn.stringIdentifier = STAlertBtnClickType.leftBtnClick.rawValue
             leftBtn.addTarget(self, action: #selector(alertButtonClick), for: .touchUpInside)
             self.alertView.addSubview(leftBtn)
             
@@ -390,7 +390,7 @@ open class STAlertController: UIViewController {
             }()
             let rightBtn = self.createBtn(action: rightAction)
             rightBtn.tag = 1
-            rightBtn.identifier = STAlertBtnClickType.rightBtnClick
+            rightBtn.stringIdentifier = STAlertBtnClickType.rightBtnClick.rawValue
             rightBtn.addTarget(self, action: #selector(alertButtonClick), for: .touchUpInside)
             self.alertView.addSubview(rightBtn)
             self.view.addConstraints([