[fix]键盘教程页，UI调整

lib/module/keyboard_tutorial/keyboard_tutorial_page.dart

@@ -55,7 +55,7 @@ class KeyboardTutorialPage extends BasePage<KeyboardTutorialController> {
         child: Stack(
           children: [
             // 头部
-            Positioned(left: 0, top: 0, right: 0, child: _buildHeader()),
+            Positioned(left: 0, top: 0, right: 0, child: _buildHeader(context)),
             // 状态栏和标题栏
             Positioned(
               left: 0,
@@ -68,7 +68,7 @@ class KeyboardTutorialPage extends BasePage<KeyboardTutorialController> {
             ),
             // 内容，填充剩余部分
             Positioned.fill(
-              top: 235.h + StatusBarUtil.getStatusBarHeight(Get.context!),
+              top: 170.h + StatusBarUtil.getStatusBarHeight(Get.context!),
               left: 0,
               right: 0,
               child: Column(children: [_buildContent()]),
@@ -143,7 +143,7 @@ class KeyboardTutorialPage extends BasePage<KeyboardTutorialController> {
   }
 
   /// 头部布局
-  Widget _buildHeader() {
+  Widget _buildHeader(BuildContext context) {
     return SizedBox(
       width: double.infinity,
       height: 298.h,
@@ -166,7 +166,7 @@ class KeyboardTutorialPage extends BasePage<KeyboardTutorialController> {
           ),
           // 提示语
           Positioned(
-            bottom: 60.h,
+            top: 70.h + StatusBarUtil.getStatusBarHeight(context),
             child: Assets.images.iconKeyboardTutorialHeaderSlogan.image(
               width: 200.w,
               height: 73.h,