diff --git a/posimai-sc/js/app.js b/posimai-sc/js/app.js
index f94ec3b0..4caedce2 100644
--- a/posimai-sc/js/app.js
+++ b/posimai-sc/js/app.js
@@ -827,17 +827,28 @@ document.addEventListener('alpine:init', () => {
       this.stepMode=false;
       this.$nextTick(()=>{
         if(window.lucide) lucide.createIcons();
-        const el=document.getElementById('comprehension-quiz');
-        if(el) el.scrollIntoView({behavior:'smooth',block:'start'});
+        requestAnimationFrame(()=>{
+          requestAnimationFrame(()=>{ this.scrollMainToComprehension(); });
+        });
       });
     },
     scrollToComprehension(){
       this.$nextTick(()=>{
-        const el=document.getElementById('comprehension-quiz');
-        if(el) el.scrollIntoView({behavior:'smooth',block:'start'});
+        requestAnimationFrame(()=>{
+          requestAnimationFrame(()=>{ this.scrollMainToComprehension(); });
+        });
         if(window.lucide) lucide.createIcons();
       });
     },
+    scrollMainToComprehension(){
+      const m=document.getElementById('main');
+      const el=document.getElementById('comprehension-quiz');
+      if(!m||!el) return;
+      // main内の実座標で算出して、カード先頭へ安定して合わせる
+      const offset=8;
+      const top=(el.getBoundingClientRect().top - m.getBoundingClientRect().top) + m.scrollTop - offset;
+      m.scrollTo({ top:Math.max(0,top), behavior:'smooth' });
+    },
     stepGoBack(){
       if(!this.stepMode) return;
       if(this.stepStep===1){