feat: 优化移动端学习与证书体验

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

src/components/QuestionQuiz/QuestionQuiz.vue

@@ -233,7 +233,9 @@ const handleSubmit = async () => {
 
 <template>
   <div
-    class="absolute inset-0 flex items-center justify-center px-20 pointer-events-none z-30"
+    class="absolute inset-0 flex items-center justify-center px-20 pointer-events-auto z-30"
+    @touchstart.stop
+    @click.stop
   >
     <div
       class="bg-black/80 backdrop-blur-lg rounded-3xl border border-white/20 p-16 space-y-10 text-white pointer-events-auto"