diff --git a/CustomKeyboard/KeyboardViewController.m b/CustomKeyboard/KeyboardViewController.m
index e27dcff..9b85403 100644
--- a/CustomKeyboard/KeyboardViewController.m
+++ b/CustomKeyboard/KeyboardViewController.m
@@ -234,7 +234,7 @@ static CGFloat KEYBOARDHEIGHT = 256 + 20;
     // 使用与主 App 一致的自定义 Scheme
     NSURL *url = [NSURL URLWithString:[NSString stringWithFormat:@"%@@//login?src=keyboard", KB_APP_SCHEME]];
     if (!url) return;
-    __weak typeof(self) weakSelf = self;
+    KBWeakSelf
     [self.extensionContext openURL:url completionHandler:^(__unused BOOL success) {
         // 即使失败也不重复尝试；避免打扰。
         __unused typeof(weakSelf) selfStrong = weakSelf;
diff --git a/CustomKeyboard/View/KBFunctionView.m b/CustomKeyboard/View/KBFunctionView.m
index 5612ba7..cfe0dd4 100644
--- a/CustomKeyboard/View/KBFunctionView.m
+++ b/CustomKeyboard/View/KBFunctionView.m
@@ -259,7 +259,7 @@ static NSString * const kKBFunctionTagCellId = @"KBFunctionTagCellId";
     // 未开启“完全访问”时不做自动读取，避免宿主/系统拒绝并刷错误日志
     if (![[KBFullAccessManager shared] hasFullAccess]) return;
     if (self.pasteboardTimer) return;
-    __weak typeof(self) weakSelf = self;
+    KBWeakSelf
     self.pasteboardTimer = [NSTimer scheduledTimerWithTimeInterval:0.5 repeats:YES block:^(NSTimer * _Nonnull timer) {
         __strong typeof(weakSelf) self = weakSelf; if (!self) return;
         UIPasteboard *pb = [UIPasteboard generalPasteboard];
diff --git a/CustomKeyboard/View/KBKeyboardView.m b/CustomKeyboard/View/KBKeyboardView.m
index 8c3fce9..f9b53d7 100644
--- a/CustomKeyboard/View/KBKeyboardView.m
+++ b/CustomKeyboard/View/KBKeyboardView.m
@@ -338,7 +338,6 @@
     if (before.length <= 0) { self.backspaceHoldActive = NO; return; }
     [proxy deleteBackward]; // 每次仅删 1 个
 
-    // 轻量递归调度下一次；不使用 NSTimer，避免复杂状态管理
     __weak typeof(self) weakSelf = self;
     dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(0.06 * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{
         __strong typeof(weakSelf) selfStrong = weakSelf;
diff --git a/keyBoard.xcodeproj/project.pbxproj b/keyBoard.xcodeproj/project.pbxproj
index 322d1bb..5408caa 100644
--- a/keyBoard.xcodeproj/project.pbxproj
+++ b/keyBoard.xcodeproj/project.pbxproj
@@ -75,6 +75,8 @@
 		048909F72EC0AAAA00FABA60 /* KBCategoryTitleView.m in Sources */ = {isa = PBXBuildFile; fileRef = 048909F32EC0AAAA00FABA60 /* KBCategoryTitleView.m */; };
 		04890A042EC0BBBB00FABA60 /* KBCategoryTitleImageCell.m in Sources */ = {isa = PBXBuildFile; fileRef = 04890A012EC0BBBB00FABA60 /* KBCategoryTitleImageCell.m */; };
 		04890A052EC0BBBB00FABA60 /* KBCategoryTitleImageView.m in Sources */ = {isa = PBXBuildFile; fileRef = 04890A032EC0BBBB00FABA60 /* KBCategoryTitleImageView.m */; };
+		049FB20B2EC1C13800FAB05D /* KBSkinBottomActionView.m in Sources */ = {isa = PBXBuildFile; fileRef = 049FB20A2EC1C13800FAB05D /* KBSkinBottomActionView.m */; };
+		049FB20E2EC1CD2800FAB05D /* KBAlert.m in Sources */ = {isa = PBXBuildFile; fileRef = 049FB20D2EC1CD2800FAB05D /* KBAlert.m */; };
 		04A9FE0F2EB481100020DB6D /* KBHUD.m in Sources */ = {isa = PBXBuildFile; fileRef = 04FC97082EB31B14007BD342 /* KBHUD.m */; };
 		04A9FE132EB4D0D20020DB6D /* KBFullAccessManager.m in Sources */ = {isa = PBXBuildFile; fileRef = 04A9FE112EB4D0D20020DB6D /* KBFullAccessManager.m */; };
 		04A9FE162EB873C80020DB6D /* UIViewController+Extension.m in Sources */ = {isa = PBXBuildFile; fileRef = 04A9FE152EB873C80020DB6D /* UIViewController+Extension.m */; };
@@ -264,6 +266,10 @@
 		04890A012EC0BBBB00FABA60 /* KBCategoryTitleImageCell.m */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.objc; path = KBCategoryTitleImageCell.m; sourceTree = "<group>"; };
 		04890A022EC0BBBB00FABA60 /* KBCategoryTitleImageView.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = KBCategoryTitleImageView.h; sourceTree = "<group>"; };
 		04890A032EC0BBBB00FABA60 /* KBCategoryTitleImageView.m */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.objc; path = KBCategoryTitleImageView.m; sourceTree = "<group>"; };
+		049FB2092EC1C13800FAB05D /* KBSkinBottomActionView.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = KBSkinBottomActionView.h; sourceTree = "<group>"; };
+		049FB20A2EC1C13800FAB05D /* KBSkinBottomActionView.m */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.objc; path = KBSkinBottomActionView.m; sourceTree = "<group>"; };
+		049FB20C2EC1CD2800FAB05D /* KBAlert.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = KBAlert.h; sourceTree = "<group>"; };
+		049FB20D2EC1CD2800FAB05D /* KBAlert.m */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.objc; path = KBAlert.m; sourceTree = "<group>"; };
 		04A9A67D2EB9E1690023B8F4 /* KBResponderUtils.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = KBResponderUtils.h; sourceTree = "<group>"; };
 		04A9FE102EB4D0D20020DB6D /* KBFullAccessManager.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = KBFullAccessManager.h; sourceTree = "<group>"; };
 		04A9FE112EB4D0D20020DB6D /* KBFullAccessManager.m */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.objc; path = KBFullAccessManager.m; sourceTree = "<group>"; };
@@ -544,6 +550,10 @@
 		048908B82EBDC11200FABA60 /* V */ = {
 			isa = PBXGroup;
 			children = (
+				04FC97072EB31B14007BD342 /* KBHUD.h */,
+				04FC97082EB31B14007BD342 /* KBHUD.m */,
+				049FB20C2EC1CD2800FAB05D /* KBAlert.h */,
+				049FB20D2EC1CD2800FAB05D /* KBAlert.m */,
 			);
 			path = V;
 			sourceTree = "<group>";
@@ -826,6 +836,8 @@
 				048908EB2EBF849300FABA60 /* KBSkinTagsContainerCell.m */,
 				048908ED2EBF861800FABA60 /* KBSkinSectionTitleCell.h */,
 				048908EE2EBF861800FABA60 /* KBSkinSectionTitleCell.m */,
+				049FB2092EC1C13800FAB05D /* KBSkinBottomActionView.h */,
+				049FB20A2EC1C13800FAB05D /* KBSkinBottomActionView.m */,
 			);
 			path = V;
 			sourceTree = "<group>";
@@ -967,8 +979,6 @@
 				04FC970B2EB334F8007BD342 /* UIImageView+KBWebImage.m */,
 				04FC970C2EB334F8007BD342 /* KBWebImageManager.h */,
 				04FC970D2EB334F8007BD342 /* KBWebImageManager.m */,
-				04FC97072EB31B14007BD342 /* KBHUD.h */,
-				04FC97082EB31B14007BD342 /* KBHUD.m */,
 				04A9FE142EB873C80020DB6D /* UIViewController+Extension.h */,
 				04A9FE152EB873C80020DB6D /* UIViewController+Extension.m */,
 				047C655A2EBCD08E0035E841 /* UIView+KBShadow.h */,
@@ -1346,6 +1356,7 @@
 				0477BE002EBC6A330055D639 /* HomeRankVC.m in Sources */,
 				047C650D2EBC8A840035E841 /* KBPanModalView.m in Sources */,
 				043FBCD22EAF97630036AFE1 /* KBPermissionViewController.m in Sources */,
+				049FB20E2EC1CD2800FAB05D /* KBAlert.m in Sources */,
 				04A9FE162EB873C80020DB6D /* UIViewController+Extension.m in Sources */,
 				04C6EABE2EAF86530089C901 /* AppDelegate.m in Sources */,
 				04FC95F12EB339A7007BD342 /* LoginViewController.m in Sources */,
@@ -1365,7 +1376,7 @@
 				047C65102EBCA8DD0035E841 /* HomeRankContentVC.m in Sources */,
 				047C655C2EBCD0F80035E841 /* UIView+KBShadow.m in Sources */,
 				048908C32EBE32B800FABA60 /* KBSearchVC.m in Sources */,
-				7276DDA82EC1B28300804C36 /* KBWebViewViewController.m in Sources */,
+				049FB20B2EC1C13800FAB05D /* KBSkinBottomActionView.m in Sources */,
 				047C655E2EBCD5B20035E841 /* UIImage+KBColor.m in Sources */,
 				04FC95DD2EB202A3007BD342 /* KBGuideVC.m in Sources */,
 				04FC95E52EB220B5007BD342 /* UIColor+Extension.m in Sources */,
diff --git a/keyBoard/Class/Base/V/UIScrollView+KBEmptyView.h b/keyBoard/Class/Base/V/UIScrollView+KBEmptyView.h
index c1b15ae..cb5c419 100644
--- a/keyBoard/Class/Base/V/UIScrollView+KBEmptyView.h
+++ b/keyBoard/Class/Base/V/UIScrollView+KBEmptyView.h
@@ -3,7 +3,6 @@
 //  keyBoard
 //
 //  统一封装基于 LYEmptyView 的空态视图挂载方法，适用于 UITableView/UICollectionView。
-//  注意：仅在对应页面已通过 CocoaPods 集成 LYEmptyView 时生效。
 //
 
 #import <UIKit/UIKit.h>
diff --git a/keyBoard/Class/Categories/UIViewController+Extension.m b/keyBoard/Class/Categories/UIViewController+Extension.m
index de0def3..5f0441c 100644
--- a/keyBoard/Class/Categories/UIViewController+Extension.m
+++ b/keyBoard/Class/Categories/UIViewController+Extension.m
@@ -34,13 +34,25 @@ static inline __kindof UIWindow *KBActiveWindow(void) {
 
 + (UIViewController *)kb_topMostViewController {
     UIWindow *window = KBActiveWindow();
-    UIViewController *root = window.rootViewController;
-    if (!root) return nil;
-    UIViewController *top = root;
-    while (top.presentedViewController) {
-        top = top.presentedViewController;
+    UIViewController *vc = window.rootViewController;
+    if (!vc) return nil;
+    // 展开容器控制器
+    while (1) {
+        if ([vc isKindOfClass:UINavigationController.class]) {
+            vc = ((UINavigationController *)vc).visibleViewController ?: vc;
+            continue;
+        }
+        if ([vc isKindOfClass:UITabBarController.class]) {
+            vc = ((UITabBarController *)vc).selectedViewController ?: vc;
+            continue;
+        }
+        if (vc.presentedViewController) {
+            vc = vc.presentedViewController;
+            continue;
+        }
+        break;
     }
-    return top;
+    return vc;
 }
 
 @end
diff --git a/keyBoard/Class/Common/V/KBAlert.h b/keyBoard/Class/Common/V/KBAlert.h
new file mode 100644
index 0000000..e41dfef
--- /dev/null
+++ b/keyBoard/Class/Common/V/KBAlert.h
@@ -0,0 +1,83 @@
+//
+//  KBAlert.h
+//  keyBoard
+//
+//  系统 UIAlertController 的轻量封装：更易用、更健壮。
+//  特性：
+//  - 任意线程调用；内部切回主线程
+//  - 自动找到可展示的 VC（使用顶层 presented VC）
+//  - Alert 队列：避免“正在展示时再次 present 失败”的崩溃/警告
+//  - iPad ActionSheet 自动设置 popover 锚点（无需关心 sourceView）
+//  - 常见场景一行调用：提示/确认/输入框/操作表
+//  - 可选指定展示的 VC（如在 Extension 内）
+//
+
+#import <UIKit/UIKit.h>
+
+NS_ASSUME_NONNULL_BEGIN
+
+typedef void (^KBAlertBoolHandler)(BOOL ok);
+typedef void (^KBAlertIndexHandler)(NSInteger index);
+typedef void (^KBAlertTextHandler)(NSString * _Nullable text, BOOL ok);
+
+@interface KBAlert : NSObject
+
+/// 指定一个缺省的“用于 present 的 VC”。
+/// - 适用：App Extension 或自管理容器场景；App 内一般无需设置。
+/// - 注意：弱引用；随时可被释放。
++ (void)setDefaultPresenter:(nullable __kindof UIViewController *)presenter;
+
+#pragma mark - 简单提示（单按钮）
+/// 标准 OK 提示；按钮文案默认为“好”或“OK”。
++ (void)showTitle:(nullable NSString *)title message:(nullable NSString *)message;
+/// 自定义按钮文案与回调。
++ (void)showTitle:(nullable NSString *)title
+          message:(nullable NSString *)message
+           button:(nullable NSString *)button
+       completion:(dispatch_block_t)completion;
+
+#pragma mark - 确认对话框（双按钮）
+/// 默认“取消/确定”按钮，回调 ok=YES 表示点击了确定。
++ (void)confirmTitle:(nullable NSString *)title
+             message:(nullable NSString *)message
+          completion:(KBAlertBoolHandler)completion;
+/// 自定义按钮文案。
++ (void)confirmTitle:(nullable NSString *)title
+             message:(nullable NSString *)message
+                 ok:(nullable NSString *)okTitle
+             cancel:(nullable NSString *)cancelTitle
+          completion:(KBAlertBoolHandler)completion;
+
+/// 自定义“确定/取消”按钮颜色（为 nil 时使用系统默认）
++ (void)confirmTitle:(nullable NSString *)title
+             message:(nullable NSString *)message
+                 ok:(nullable NSString *)okTitle
+             cancel:(nullable NSString *)cancelTitle
+            okColor:(nullable UIColor *)okColor
+        cancelColor:(nullable UIColor *)cancelColor
+          completion:(KBAlertBoolHandler)completion;
+
+#pragma mark - 输入框（单行）
+/// 带单个输入框；ok=YES 时返回输入内容。
++ (void)promptTitle:(nullable NSString *)title
+            message:(nullable NSString *)message
+        placeholder:(nullable NSString *)placeholder
+                 ok:(nullable NSString *)okTitle
+             cancel:(nullable NSString *)cancelTitle
+      keyboardType:(UIKeyboardType)type
+     configuration:(void (^ _Nullable)(UITextField *tf))config
+          completion:(KBAlertTextHandler)completion;
+
+#pragma mark - 操作表（ActionSheet）
+/// 操作表；index 为点击项序号，按 actions 顺序从 0 开始；取消返回 -1。
++ (void)actionSheetTitle:(nullable NSString *)title
+                 message:(nullable NSString *)message
+                 actions:(NSArray<NSString *> *)actions
+                cancel:(nullable NSString *)cancelTitle
+       destructiveIndex:(NSInteger)destructiveIndex // 传入 -1 表示无
+                fromView:(nullable UIView *)anchorView // iPad 可指定锚点；传 nil 自动居中
+               completion:(KBAlertIndexHandler)completion;
+
+@end
+
+NS_ASSUME_NONNULL_END
diff --git a/keyBoard/Class/Common/V/KBAlert.m b/keyBoard/Class/Common/V/KBAlert.m
new file mode 100644
index 0000000..ee1a196
--- /dev/null
+++ b/keyBoard/Class/Common/V/KBAlert.m
@@ -0,0 +1,243 @@
+//
+//  KBAlert.m
+//  keyBoard
+//
+
+#import "KBAlert.h"
+#import <UIKit/UIKit.h>
+#import "UIViewController+Extension.h"
+
+@implementation KBAlert
+
+// 简单的串行展示队列，避免重复 present 引发的异常
+static NSMutableArray<dispatch_block_t> *sQueue;
+static BOOL sPresenting = NO;
+static __weak UIViewController *sDefaultPresenter = nil; // 可选外部指定的 presenter（弱引用）
+
+#pragma mark - Helpers
+
++ (void)initialize {
+    if (self == KBAlert.class) {
+        sQueue = [NSMutableArray array];
+    }
+}
+
++ (void)onMain:(dispatch_block_t)blk {
+    if (NSThread.isMainThread) { blk(); } else { dispatch_async(dispatch_get_main_queue(), blk); }
+}
+
++ (UIViewController *)presentingVC {
+    // 优先使用外部指定的 presenter；否则找顶层
+    UIViewController *vc = sDefaultPresenter;
+    if (!vc) {
+        vc = [UIViewController kb_topMostViewController];
+    }
+    return vc;
+}
+
++ (void)enqueuePresent:(dispatch_block_t)presenter {
+    [self onMain:^{
+        [sQueue addObject:[presenter copy]];
+        if (!sPresenting) { [self _dequeueAndPresentNext]; }
+    }];
+}
+
++ (void)_dequeueAndPresentNext {
+    if (sPresenting || sQueue.count == 0) { return; }
+    sPresenting = YES;
+    dispatch_block_t blk = sQueue.firstObject;
+    [sQueue removeObjectAtIndex:0];
+    blk();
+}
+
+// 在任意 action 执行后调用，标记结束并尝试继续队列
++ (void)_markFinishedAndContinue {
+    // 延迟到下一个 runloop 以确保系统完成 dismiss 流程
+    dispatch_async(dispatch_get_main_queue(), ^{
+        sPresenting = NO;
+        [self _dequeueAndPresentNext];
+    });
+}
+
+// iPad 的 ActionSheet 需要 popover 锚点；此处自动兜底
++ (void)configurePopoverIfNeeded:(UIAlertController *)ac anchorView:(UIView *)anchorView inVC:(UIViewController *)vc {
+    if (ac.preferredStyle != UIAlertControllerStyleActionSheet) { return; }
+    UIPopoverPresentationController *pop = ac.popoverPresentationController;
+    if (!pop) { return; }
+    if (anchorView) {
+        pop.sourceView = anchorView;
+        pop.sourceRect = anchorView.bounds;
+    } else if (vc.view) {
+        pop.sourceView = vc.view;
+        CGSize sz = vc.view.bounds.size;
+        CGRect r = CGRectMake(MAX(0, sz.width * 0.5 - 1), MAX(0, sz.height * 0.5 - 1), 2, 2);
+        pop.sourceRect = r; // 居中一个很小的矩形，视觉近似居中弹出
+        pop.permittedArrowDirections = 0;
+    }
+}
+
+#pragma mark - Public API
+
++ (void)setDefaultPresenter:(UIViewController *)presenter { sDefaultPresenter = presenter; }
+
++ (void)showTitle:(NSString *)title message:(NSString *)message {
+    [self showTitle:title message:message button:nil completion:nil];
+}
+
++ (void)showTitle:(NSString *)title
+          message:(NSString *)message
+           button:(NSString *)button
+       completion:(dispatch_block_t)completion {
+    [self enqueuePresent:^{
+        UIViewController *vc = [self presentingVC];
+        if (!vc) { // 无法获取 presenter，直接结束队列
+            [self _markFinishedAndContinue];
+            return;
+        }
+        NSString *ok = button ?: (NSLocalizedString(@"OK", nil).length ? NSLocalizedString(@"OK", nil) : @"好");
+        UIAlertController *ac = [UIAlertController alertControllerWithTitle:(title ?: @"")
+                                                                   message:(message ?: @"")
+                                                            preferredStyle:UIAlertControllerStyleAlert];
+        __weak UIAlertController *wac = ac;
+        UIAlertAction *okAct = [UIAlertAction actionWithTitle:ok style:UIAlertActionStyleDefault handler:^(__unused UIAlertAction * _Nonnull action) {
+            if (completion) { completion(); }
+            // 防止异常：确保 alert 被关闭
+            [wac dismissViewControllerAnimated:YES completion:nil];
+            [KBAlert _markFinishedAndContinue];
+        }];
+        [ac addAction:okAct];
+        [vc presentViewController:ac animated:YES completion:nil];
+    }];
+}
+
++ (void)confirmTitle:(NSString *)title message:(NSString *)message completion:(KBAlertBoolHandler)completion {
+    [self confirmTitle:title message:message ok:nil cancel:nil completion:completion];
+}
+
++ (void)confirmTitle:(NSString *)title
+             message:(NSString *)message
+                 ok:(NSString *)okTitle
+             cancel:(NSString *)cancelTitle
+          completion:(KBAlertBoolHandler)completion {
+    [self confirmTitle:title message:message ok:okTitle cancel:cancelTitle okColor:nil cancelColor:nil completion:completion];
+}
+
+// KVC 方式设置 action 文字颜色（非公开 API，做保护）
+static inline void KBSetActionTitleColor(UIAlertAction *action, UIColor *color) {
+    if (!color || !action) return;
+    @try { [action setValue:color forKey:@"titleTextColor"]; } @catch (__unused NSException *e) {}
+}
+
++ (void)confirmTitle:(NSString *)title
+             message:(NSString *)message
+                 ok:(NSString *)okTitle
+             cancel:(NSString *)cancelTitle
+            okColor:(UIColor *)okColor
+        cancelColor:(UIColor *)cancelColor
+          completion:(KBAlertBoolHandler)completion {
+    [self enqueuePresent:^{
+        UIViewController *vc = [self presentingVC];
+        if (!vc) { [self _markFinishedAndContinue]; return; }
+        NSString *ok = okTitle ?: @"确定";
+        NSString *cancel = cancelTitle ?: @"取消";
+        UIAlertController *ac = [UIAlertController alertControllerWithTitle:(title ?: @"")
+                                                                   message:(message ?: @"")
+                                                            preferredStyle:UIAlertControllerStyleAlert];
+        __weak UIAlertController *wac = ac;
+        UIAlertAction *cancelAct = [UIAlertAction actionWithTitle:cancel style:UIAlertActionStyleCancel handler:^(__unused UIAlertAction * _Nonnull a) {
+            if (completion) { completion(NO); }
+            [wac dismissViewControllerAnimated:YES completion:nil];
+            [KBAlert _markFinishedAndContinue];
+        }];
+        UIAlertAction *okAct = [UIAlertAction actionWithTitle:ok style:UIAlertActionStyleDefault handler:^(__unused UIAlertAction * _Nonnull a) {
+            if (completion) { completion(YES); }
+            [wac dismissViewControllerAnimated:YES completion:nil];
+            [KBAlert _markFinishedAndContinue];
+        }];
+        // 自定义颜色
+        KBSetActionTitleColor(okAct, okColor);
+        KBSetActionTitleColor(cancelAct, cancelColor);
+
+        [ac addAction:cancelAct];
+        [ac addAction:okAct];
+        [vc presentViewController:ac animated:YES completion:nil];
+    }];
+}
+
++ (void)promptTitle:(NSString *)title
+            message:(NSString *)message
+        placeholder:(NSString *)placeholder
+                 ok:(NSString *)okTitle
+             cancel:(NSString *)cancelTitle
+      keyboardType:(UIKeyboardType)type
+     configuration:(void (^)(UITextField * _Nonnull))config
+          completion:(KBAlertTextHandler)completion {
+    [self enqueuePresent:^{
+        UIViewController *vc = [self presentingVC];
+        if (!vc) { [self _markFinishedAndContinue]; return; }
+        NSString *ok = okTitle ?: @"确定";
+        NSString *cancel = cancelTitle ?: @"取消";
+        UIAlertController *ac = [UIAlertController alertControllerWithTitle:(title ?: @"")
+                                                                   message:(message ?: @"")
+                                                            preferredStyle:UIAlertControllerStyleAlert];
+        __weak UIAlertController *wac = ac;
+        [ac addTextFieldWithConfigurationHandler:^(UITextField * _Nonnull tf) {
+            tf.placeholder = placeholder;
+            tf.keyboardType = type;
+            if (config) { config(tf); }
+        }];
+        UIAlertAction *cancelAct = [UIAlertAction actionWithTitle:cancel style:UIAlertActionStyleCancel handler:^(__unused UIAlertAction * _Nonnull a) {
+            if (completion) { completion(nil, NO); }
+            [wac dismissViewControllerAnimated:YES completion:nil];
+            [KBAlert _markFinishedAndContinue];
+        }];
+        UIAlertAction *okAct = [UIAlertAction actionWithTitle:ok style:UIAlertActionStyleDefault handler:^(__unused UIAlertAction * _Nonnull a) {
+            NSString *text = wac.textFields.firstObject.text;
+            if (completion) { completion(text, YES); }
+            [wac dismissViewControllerAnimated:YES completion:nil];
+            [KBAlert _markFinishedAndContinue];
+        }];
+        [ac addAction:cancelAct];
+        [ac addAction:okAct];
+        [vc presentViewController:ac animated:YES completion:nil];
+    }];
+}
+
++ (void)actionSheetTitle:(NSString *)title
+                 message:(NSString *)message
+                 actions:(NSArray<NSString *> *)actions
+                  cancel:(NSString *)cancelTitle
+       destructiveIndex:(NSInteger)destructiveIndex
+                fromView:(UIView *)anchorView
+               completion:(KBAlertIndexHandler)completion {
+    [self enqueuePresent:^{
+        UIViewController *vc = [self presentingVC];
+        if (!vc) { [self _markFinishedAndContinue]; return; }
+        UIAlertController *ac = [UIAlertController alertControllerWithTitle:(title ?: @"")
+                                                                   message:(message ?: @"")
+                                                            preferredStyle:UIAlertControllerStyleActionSheet];
+        __weak UIAlertController *wac = ac;
+        [actions enumerateObjectsUsingBlock:^(NSString * _Nonnull obj, NSUInteger idx, BOOL * _Nonnull stop) {
+            UIAlertActionStyle style = (destructiveIndex >= 0 && (NSInteger)idx == destructiveIndex) ? UIAlertActionStyleDestructive : UIAlertActionStyleDefault;
+            UIAlertAction *act = [UIAlertAction actionWithTitle:obj ?: @"" style:style handler:^(__unused UIAlertAction * _Nonnull a) {
+                if (completion) { completion((NSInteger)idx); }
+                [wac dismissViewControllerAnimated:YES completion:nil];
+                [KBAlert _markFinishedAndContinue];
+            }];
+            [ac addAction:act];
+        }];
+        if (cancelTitle.length) {
+            UIAlertAction *cancel = [UIAlertAction actionWithTitle:cancelTitle style:UIAlertActionStyleCancel handler:^(__unused UIAlertAction * _Nonnull a) {
+                if (completion) { completion(-1); }
+                [wac dismissViewControllerAnimated:YES completion:nil];
+                [KBAlert _markFinishedAndContinue];
+            }];
+            [ac addAction:cancel];
+        }
+
+        [self configurePopoverIfNeeded:ac anchorView:anchorView inVC:vc];
+        [vc presentViewController:ac animated:YES completion:nil];
+    }];
+}
+
+@end
diff --git a/keyBoard/Class/Categories/KBHUD.h b/keyBoard/Class/Common/V/KBHUD.h
similarity index 100%
rename from keyBoard/Class/Categories/KBHUD.h
rename to keyBoard/Class/Common/V/KBHUD.h
diff --git a/keyBoard/Class/Categories/KBHUD.m b/keyBoard/Class/Common/V/KBHUD.m
similarity index 100%
rename from keyBoard/Class/Categories/KBHUD.m
rename to keyBoard/Class/Common/V/KBHUD.m
diff --git a/keyBoard/Class/Home/VC/HomeHotVC.m b/keyBoard/Class/Home/VC/HomeHotVC.m
index 1a8e47d..ae5f5ae 100644
--- a/keyBoard/Class/Home/VC/HomeHotVC.m
+++ b/keyBoard/Class/Home/VC/HomeHotVC.m
@@ -81,9 +81,9 @@
 
 - (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
     [tableView deselectRowAtIndexPath:indexPath animated:YES];
-//    KBSearchVC *vc = [[KBSearchVC alloc] init];
+    KBSearchVC *vc = [[KBSearchVC alloc] init];
 //    [self.navigationController pushViewController:vc animated:true];
-//    UINavigationController *nav = KB_CURRENT_NAV;
+    UINavigationController *nav = KB_CURRENT_NAV;
 //    [nav pushViewController:vc animated:true];
     NSLog(@"===");
     
diff --git a/keyBoard/Class/Home/VC/HomeRankContentVC.m b/keyBoard/Class/Home/VC/HomeRankContentVC.m
index 43bf2f8..2f6687e 100644
--- a/keyBoard/Class/Home/VC/HomeRankContentVC.m
+++ b/keyBoard/Class/Home/VC/HomeRankContentVC.m
@@ -75,7 +75,7 @@
                         desc:d[@"desc"]
                       people:d[@"people"]
                        added:added];
-    __weak typeof(self) weakSelf = self;
+    KBWeakSelf
     cell.onTapAction = ^{
         // 切换添加/已添加状态并刷新该项
         NSMutableArray *m = [weakSelf.dataSource mutableCopy];
diff --git a/keyBoard/Class/Login/VC/KBLoginSheetViewController.m b/keyBoard/Class/Login/VC/KBLoginSheetViewController.m
index 04b6629..ac631c1 100644
--- a/keyBoard/Class/Login/VC/KBLoginSheetViewController.m
+++ b/keyBoard/Class/Login/VC/KBLoginSheetViewController.m
@@ -132,7 +132,7 @@
 
 - (void)onContinue {
     LoginViewController *login = [LoginViewController new];
-    __weak typeof(self) weakSelf = self;
+    KBWeakSelf
     login.onLoginSuccess = ^(NSDictionary * _Nonnull userInfo) {
         __strong typeof(weakSelf) self = weakSelf; if (!self) return;
         [self dismissViewControllerAnimated:YES completion:^{
diff --git a/keyBoard/Class/Login/VC/LoginViewController.m b/keyBoard/Class/Login/VC/LoginViewController.m
index 7d4fc9a..ee9e78c 100644
--- a/keyBoard/Class/Login/VC/LoginViewController.m
+++ b/keyBoard/Class/Login/VC/LoginViewController.m
@@ -114,7 +114,7 @@
 }
 
 - (void)handleAppleIDButtonPress API_AVAILABLE(ios(13.0)) {
-    __weak typeof(self) weakSelf = self;
+    KBWeakSelf
     [[AppleSignInManager shared] signInFromViewController:self completion:^(ASAuthorizationAppleIDCredential * _Nullable credential, NSError * _Nullable error) {
         __strong typeof(weakSelf) selfStrong = weakSelf;
         if (error) {
diff --git a/keyBoard/Class/Me/V/KBSkinBottomActionView.h b/keyBoard/Class/Me/V/KBSkinBottomActionView.h
new file mode 100644
index 0000000..d80f4c9
--- /dev/null
+++ b/keyBoard/Class/Me/V/KBSkinBottomActionView.h
@@ -0,0 +1,37 @@
+//
+//  KBSkinBottomActionView.h
+//  keyBoard
+//
+//  底部操作条（圆角胶囊样式），支持点击。用于皮肤详情页下载/购买。
+//
+
+#import <UIKit/UIKit.h>
+
+NS_ASSUME_NONNULL_BEGIN
+
+/// 底部操作条（45 高，左右圆角）。
+/// 结构： [  Title   [coinIcon]  [price]  ] 居中对齐
+@interface KBSkinBottomActionView : UIControl
+
+/// 标题，例如：@"Download"
+@property (nonatomic, copy) NSString *titleText;
+
+/// 价格/金币数，例如：@"20"
+@property (nonatomic, copy) NSString *priceText;
+
+/// 图标（可选），例如金币图
+@property (nonatomic, strong, nullable) UIImage *iconImage;
+
+/// 点击回调（也可直接 addTarget 使用）
+@property (nonatomic, copy, nullable) void (^tapHandler)(void);
+
+/// 配置便捷方法
+- (void)configWithTitle:(nullable NSString *)title price:(nullable NSString *)price icon:(nullable UIImage *)icon;
+
+/// 建议固定高度
++ (CGFloat)preferredHeight;
+
+@end
+
+NS_ASSUME_NONNULL_END
+
diff --git a/keyBoard/Class/Me/V/KBSkinBottomActionView.m b/keyBoard/Class/Me/V/KBSkinBottomActionView.m
new file mode 100644
index 0000000..0ccba7a
--- /dev/null
+++ b/keyBoard/Class/Me/V/KBSkinBottomActionView.m
@@ -0,0 +1,153 @@
+//
+//  KBSkinBottomActionView.m
+//  keyBoard
+//
+//
+
+#import "KBSkinBottomActionView.h"
+
+@interface KBSkinBottomActionView ()
+@property (nonatomic, strong) UIView *contentView;       // 内部容器，使三项整体居中
+@property (nonatomic, strong) UILabel *titleLabel;      // 左侧标题
+@property (nonatomic, strong) UIImageView *coinImageView; // 中间图标（可选）
+@property (nonatomic, strong) UILabel *priceLabel;      // 右侧价格
+@end
+
+@implementation KBSkinBottomActionView
+
++ (CGFloat)preferredHeight { return 45.0; }
+
+- (instancetype)initWithFrame:(CGRect)frame {
+    if (self = [super initWithFrame:frame]) {
+        self.backgroundColor = [UIColor colorWithHex:0x02BEAC];
+        self.layer.masksToBounds = YES; // 圆角生效
+
+        // 高亮态轻微透明，突出点击感
+        [self addTarget:self action:@selector(onTouchDown) forControlEvents:UIControlEventTouchDown];
+        [self addTarget:self action:@selector(onTouchUp) forControlEvents:UIControlEventTouchUpInside | UIControlEventTouchUpOutside | UIControlEventTouchCancel];
+
+        // 内部容器，承载三个元素，容器整体水平/垂直居中
+        [self addSubview:self.contentView];
+        [self.contentView mas_makeConstraints:^(MASConstraintMaker *make) {
+            make.centerX.equalTo(self);
+            make.centerY.equalTo(self);
+            // 防止文本过长时超出左右边界
+            make.left.greaterThanOrEqualTo(self).offset(16);
+            make.right.lessThanOrEqualTo(self).offset(-16);
+        }];
+
+        // 三个元素放进容器，左右顺序：Title - Icon - Price
+        [self.contentView addSubview:self.titleLabel];
+        [self.contentView addSubview:self.coinImageView];
+        [self.contentView addSubview:self.priceLabel];
+
+        [self.titleLabel mas_makeConstraints:^(MASConstraintMaker *make) {
+            make.left.equalTo(self.contentView);
+            make.centerY.equalTo(self.contentView);
+        }];
+        [self.coinImageView mas_makeConstraints:^(MASConstraintMaker *make) {
+            make.left.equalTo(self.titleLabel.mas_right).offset(8);
+            make.centerY.equalTo(self.contentView);
+            make.width.height.mas_equalTo(18);
+        }];
+        [self.priceLabel mas_makeConstraints:^(MASConstraintMaker *make) {
+            make.left.equalTo(self.coinImageView.mas_right).offset(6);
+            make.right.equalTo(self.contentView);
+            make.centerY.equalTo(self.contentView);
+        }];
+
+        // 默认文案
+        self.titleText = @"Download";
+        self.priceText = @"20";
+        UIImage *img = [UIImage systemImageNamed:@"circle.fill"];
+        self.iconImage = img; // 若项目没有金币图标，用系统占位（黄色）
+        self.coinImageView.tintColor = [UIColor colorWithRed:1.0 green:0.85 blue:0.2 alpha:1.0];
+        // 点击回调（可选）
+        [self addTarget:self action:@selector(handleTap) forControlEvents:UIControlEventTouchUpInside];
+    }
+    return self;
+}
+
+- (void)layoutSubviews {
+    [super layoutSubviews];
+    // 圆角随高度自适应
+    self.layer.cornerRadius = CGRectGetHeight(self.bounds) * 0.5;
+}
+
+#pragma mark - Public
+
+- (void)configWithTitle:(nullable NSString *)title price:(nullable NSString *)price icon:(nullable UIImage *)icon {
+    if (title.length) self.titleText = title;
+    if (price.length) self.priceText = price;
+    if (icon) self.iconImage = icon;
+}
+
+#pragma mark - Actions
+
+- (void)onTouchDown { self.alpha = 0.85; }
+- (void)onTouchUp { self.alpha = 1.0; }
+
+- (void)handleTap {
+    if (self.tapHandler) { self.tapHandler(); }
+}
+
+#pragma mark - Setters
+
+- (void)setTitleText:(NSString *)titleText {
+    _titleText = [titleText copy];
+    self.titleLabel.text = _titleText;
+}
+
+- (void)setPriceText:(NSString *)priceText {
+    _priceText = [priceText copy];
+    self.priceLabel.text = _priceText;
+}
+
+- (void)setIconImage:(UIImage *)iconImage {
+    _iconImage = iconImage;
+    self.coinImageView.image = _iconImage;
+}
+
+#pragma mark - Lazy
+
+- (UILabel *)titleLabel {
+    if (!_titleLabel) {
+        _titleLabel = [[UILabel alloc] init];
+        _titleLabel.font = [UIFont systemFontOfSize:17 weight:UIFontWeightSemibold];
+        _titleLabel.textColor = [UIColor whiteColor];
+        _titleLabel.textAlignment = NSTextAlignmentCenter;
+    }
+    return _titleLabel;
+}
+
+- (UIView *)contentView {
+    if (!_contentView) {
+        _contentView = [[UIView alloc] init];
+        _contentView.backgroundColor = [UIColor clearColor];
+        // 让容器尽量包裹内容
+        [_contentView setContentHuggingPriority:UILayoutPriorityRequired forAxis:UILayoutConstraintAxisHorizontal];
+        [_contentView setContentCompressionResistancePriority:UILayoutPriorityRequired forAxis:UILayoutConstraintAxisHorizontal];
+    }
+    return _contentView;
+}
+
+- (UIImageView *)coinImageView {
+    if (!_coinImageView) {
+        _coinImageView = [[UIImageView alloc] init];
+        _coinImageView.contentMode = UIViewContentModeScaleAspectFit;
+        _coinImageView.clipsToBounds = YES;
+    }
+    return _coinImageView;
+}
+
+- (UILabel *)priceLabel {
+    if (!_priceLabel) {
+        _priceLabel = [[UILabel alloc] init];
+        _priceLabel.font = [UIFont systemFontOfSize:17 weight:UIFontWeightSemibold];
+        _priceLabel.textColor = [UIColor whiteColor];
+        _priceLabel.textAlignment = NSTextAlignmentCenter;
+    }
+    return _priceLabel;
+}
+
+@end
diff --git a/keyBoard/Class/Me/VC/KBSkinDetailVC.m b/keyBoard/Class/Me/VC/KBSkinDetailVC.m
index 10e002b..1a9ab8e 100644
--- a/keyBoard/Class/Me/VC/KBSkinDetailVC.m
+++ b/keyBoard/Class/Me/VC/KBSkinDetailVC.m
@@ -8,8 +8,9 @@
 #import "UICollectionViewLeftAlignedLayout.h"
 #import "KBSkinDetailHeaderCell.h"
 #import "KBSkinTagsContainerCell.h"
-#import "KBSkinCardCell.h"    // 已有的 皮肤卡片 cell（用作 2 列网格）
+#import "KBSkinCardCell.h"
 #import "KBSkinSectionTitleCell.h"
+#import "KBSkinBottomActionView.h"
 
 static NSString * const kHeaderCellId = @"kHeaderCellId";
 static NSString * const kTagsContainerCellId = @"kTagsContainerCellId";
@@ -26,6 +27,7 @@ typedef NS_ENUM(NSInteger, KBSkinDetailSection) {
 
 @interface KBSkinDetailVC () <UICollectionViewDataSource, UICollectionViewDelegateFlowLayout>
 @property (nonatomic, strong) UICollectionView *collectionView; // 主列表
+@property (nonatomic, strong) KBSkinBottomActionView *bottomBar; // 底部操作条
 @property (nonatomic, copy) NSArray<NSString *> *tags;           // 标签数据
 @property (nonatomic, copy) NSArray<NSDictionary *> *gridData;   // 底部网格数据
 @end
@@ -44,9 +46,26 @@ typedef NS_ENUM(NSInteger, KBSkinDetailSection) {
         @{ @"title": @"Dopamine" }, @{ @"title": @"Dopamine" },
     ];
 
+    // 1. 列表
     [self.view addSubview:self.collectionView];
+
+    // 2. 底部操作条（左右 15，高 45，可点击）
+    [self.view addSubview:self.bottomBar];
+    [self.bottomBar mas_makeConstraints:^(MASConstraintMaker *make) {
+        make.left.equalTo(self.view).offset(15);
+        make.right.equalTo(self.view).offset(-15);
+        make.height.mas_equalTo([KBSkinBottomActionView preferredHeight]);
+        if (@available(iOS 11.0, *)) {
+            make.bottom.equalTo(self.view.mas_safeAreaLayoutGuideBottom);
+        } else {
+            make.bottom.equalTo(self.view);
+        }
+    }];
+
+    // 列表底部距离操作条顶部 10
     [self.collectionView mas_makeConstraints:^(MASConstraintMaker *make) {
-        make.edges.equalTo(self.view);
+        make.top.left.right.equalTo(self.view);
+        make.bottom.equalTo(self.bottomBar.mas_top).offset(-10);
     }];
 }
 
@@ -156,4 +175,27 @@ typedef NS_ENUM(NSInteger, KBSkinDetailSection) {
     return _collectionView;
 }
 
+#pragma mark - Lazy (Bottom Bar)
+
+- (KBSkinBottomActionView *)bottomBar {
+    if (!_bottomBar) {
+        _bottomBar = [[KBSkinBottomActionView alloc] init];
+        // 中文注释：配置文案与图标，可根据业务传入金币图/价格
+        [_bottomBar configWithTitle:@"Download" price:@"20" icon:nil];
+        KBWeakSelf
+        _bottomBar.tapHandler = ^{
+            // 示例：点击下载/购买
+//            [KBHUD showText:@"点击了下载"];
+            // TODO: 在此处触发下载/购买逻辑
+            [weakSelf handleDownloadAction];
+        };
+    }
+    return _bottomBar;
+}
+
+#pragma mark - Actions
+- (void)handleDownloadAction {
+    // 预留：下载/购买动作
+}
+
 @end
diff --git a/keyBoard/Class/Me/VC/MySkinVC.m b/keyBoard/Class/Me/VC/MySkinVC.m
index b700196..511c630 100644
--- a/keyBoard/Class/Me/VC/MySkinVC.m
+++ b/keyBoard/Class/Me/VC/MySkinVC.m
@@ -55,7 +55,7 @@ static NSString * const kMySkinCellId = @"kMySkinCellId";
     }];
 
     // 空态视图（LYEmptyView）统一样式 + 重试按钮
-    __weak typeof(self) weakSelf = self;
+    KBWeakSelf
     [self.collectionView kb_makeDefaultEmptyViewWithImage:nil
                                                     title:@"暂无皮肤"
                                                    detail:@"下拉刷新试试"
diff --git a/keyBoard/Class/Me/VC/MyVC.m b/keyBoard/Class/Me/VC/MyVC.m
index d977520..a422724 100644
--- a/keyBoard/Class/Me/VC/MyVC.m
+++ b/keyBoard/Class/Me/VC/MyVC.m
@@ -29,10 +29,10 @@
 }
 
 - (void)touchesBegan:(NSSet<UITouch *> *)touches withEvent:(UIEvent *)event{
-    MySkinVC *vc = [[MySkinVC alloc] init];
-//    KBSkinDetailVC *vc = [[KBSkinDetailVC alloc] init];
+//    MySkinVC *vc = [[MySkinVC alloc] init];
+    KBSkinDetailVC *vc = [[KBSkinDetailVC alloc] init];
 
-    [self.navigationController pushViewController:vc animated:true];
+//    [self.navigationController pushViewController:vc animated:true];
 }
 
 /*
diff --git a/keyBoard/Class/Search/V/KBSearchSectionHeader.h b/keyBoard/Class/Search/V/KBSearchSectionHeader.h
index 4faea23..7048c54 100644
--- a/keyBoard/Class/Search/V/KBSearchSectionHeader.h
+++ b/keyBoard/Class/Search/V/KBSearchSectionHeader.h
@@ -20,10 +20,14 @@ NS_ASSUME_NONNULL_BEGIN
 /// 配置标题与是否显示垃圾桶
 - (void)configWithTitle:(NSString *)title showTrash:(BOOL)showTrash;
 
-/// 清除按钮点击回调
+/// 清除按钮点击回调（用户在弹窗中点击“确定”后触发）
 @property (nonatomic, copy) void(^onTapTrash)(void);
 
+/// “确定”按钮颜色（默认黑色）
+@property (nonatomic, strong, nullable) UIColor *confirmColor;
+/// “取消”按钮颜色（默认黑色）
+@property (nonatomic, strong, nullable) UIColor *cancelColor;
+
 @end
 
 NS_ASSUME_NONNULL_END
-
diff --git a/keyBoard/Class/Search/V/KBSearchSectionHeader.m b/keyBoard/Class/Search/V/KBSearchSectionHeader.m
index 792f27f..220e97f 100644
--- a/keyBoard/Class/Search/V/KBSearchSectionHeader.m
+++ b/keyBoard/Class/Search/V/KBSearchSectionHeader.m
@@ -4,6 +4,7 @@
 //
 
 #import "KBSearchSectionHeader.h"
+#import "KBAlert.h"
 
 @interface KBSearchSectionHeader ()
 @property (nonatomic, strong, readwrite) UILabel *titleLabel;
@@ -15,6 +16,8 @@
 - (instancetype)initWithFrame:(CGRect)frame {
     if (self = [super initWithFrame:frame]) {
         [self setupUI];
+        _confirmColor = [UIColor redColor];
+        _cancelColor = [UIColor blackColor];
     }
     return self;
 }
@@ -39,7 +42,19 @@
 }
 
 - (void)tapTrash {
-    if (self.onTapTrash) { self.onTapTrash(); }
+    // 弹出确认框：是否删除所有历史记录
+    __weak typeof(self) weakSelf = self;
+    [KBAlert confirmTitle:@"清空历史"
+                  message:@"是否删除所有历史记录？"
+                       ok:@"确定"
+                   cancel:@"取消"
+                  okColor:weakSelf.confirmColor
+              cancelColor:weakSelf.cancelColor
+                completion:^(BOOL ok) {
+                    if (ok && weakSelf.onTapTrash) {
+                        weakSelf.onTapTrash();
+                    }
+                }];
 }
 
 - (void)configWithTitle:(NSString *)title showTrash:(BOOL)showTrash {
@@ -69,4 +84,3 @@
 }
 
 @end
-
diff --git a/keyBoard/Class/Search/VC/KBSearchResultVC.m b/keyBoard/Class/Search/VC/KBSearchResultVC.m
index fbec781..66847c9 100644
--- a/keyBoard/Class/Search/VC/KBSearchResultVC.m
+++ b/keyBoard/Class/Search/VC/KBSearchResultVC.m
@@ -152,7 +152,7 @@ static NSString * const kResultCellId = @"KBSkinCardCell";
     if (!_searchBarView) {
         _searchBarView = [[KBSearchBarView alloc] init];
         _searchBarView.placeholder = @"Themes";
-        __weak typeof(self) weakSelf = self;
+        KBWeakSelf
         _searchBarView.onSearch = ^(NSString * _Nonnull keyword) {
             [weakSelf performSearch:keyword];
         };
diff --git a/keyBoard/Class/Search/VC/KBSearchVC.m b/keyBoard/Class/Search/VC/KBSearchVC.m
index bb6c52b..6382757 100644
--- a/keyBoard/Class/Search/VC/KBSearchVC.m
+++ b/keyBoard/Class/Search/VC/KBSearchVC.m
@@ -285,7 +285,7 @@ typedef NS_ENUM(NSInteger, KBSearchSection) {
         if (indexPath.section == KBSearchSectionHistory) {
             // 当没有历史时，外部通过 sizeForHeader 返回 0，这里仍设置但不会显示
             [header configWithTitle:@"Historical Search" showTrash:self.historyWords.count > 0];
-            __weak typeof(self) weakSelf = self;
+            KBWeakSelf
             header.onTapTrash = ^{ [weakSelf clearHistory]; };
         } else {
             [header configWithTitle:@"Recommended Skin" showTrash:NO];
@@ -363,7 +363,7 @@ typedef NS_ENUM(NSInteger, KBSearchSection) {
     if (!_searchBarView) {
         _searchBarView = [[KBSearchBarView alloc] init];
         _searchBarView.placeholder = @"Themes";
-        __weak typeof(self) weakSelf = self;
+        KBWeakSelf
         _searchBarView.onSearch = ^(NSString * _Nonnull keyword) {
             // 置顶到历史 + 打开结果页
             [weakSelf performSearch:keyword];
diff --git a/keyBoard/Class/Shop/VC/KBShopItemVC.m b/keyBoard/Class/Shop/VC/KBShopItemVC.m
index 55e252f..b5be936 100644
--- a/keyBoard/Class/Shop/VC/KBShopItemVC.m
+++ b/keyBoard/Class/Shop/VC/KBShopItemVC.m
@@ -27,7 +27,7 @@
     }];
 
     // 刷新组件（演示：2 秒后结束）
-    __weak typeof(self) weakSelf = self;
+    KBWeakSelf
     if (self.isNeedHeader) {
         self.collectionView.mj_header = [MJRefreshNormalHeader headerWithRefreshingBlock:^{
             dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(2 * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{
diff --git a/keyBoard/KeyBoardPrefixHeader.pch b/keyBoard/KeyBoardPrefixHeader.pch
index 7a7c720..ec0d2b3 100644
--- a/keyBoard/KeyBoardPrefixHeader.pch
+++ b/keyBoard/KeyBoardPrefixHeader.pch
@@ -21,6 +21,7 @@
 /// 系统
 #import <UIKit/UIKit.h>
 #import "KBHUD.h"
+#import "KBAlert.h"
 #import "KBNetworkManager.h"