.jTHmna_demo{text-align:left;background:#fff;border:1px solid #e5e7eb;border-radius:16px;position:relative;box-shadow:0 20px 60px #0f172a14,0 4px 12px #4f46e50a}.jTHmna_toolbar{color:#64748b;letter-spacing:.12em;border-bottom:1px solid #eef0f5;align-items:center;gap:18px;padding:15px 20px;font-size:9px;font-weight:600;display:flex}.jTHmna_windowDots{color:#cbd5e1;letter-spacing:3px;font-size:9px}.jTHmna_liveDot{background:#10b981;border-radius:50%;flex-shrink:0;width:6px;height:6px}.jTHmna_motionControl{cursor:pointer;border-radius:50%;flex-shrink:0;place-items:center;width:28px;height:28px;margin:-8px 0 -8px auto;display:grid;position:relative}.jTHmna_motionControl:hover{color:#4f46e5;background:#f5f4ff}.jTHmna_motionControl input{opacity:0;cursor:pointer;width:100%;height:100%;margin:0;position:absolute;inset:0}.jTHmna_motionControl span{pointer-events:none;font-size:11px}.jTHmna_motionControl:has(input:focus-visible){outline-offset:2px;outline:2px solid #4f46e5}.jTHmna_playIcon,.jTHmna_motionControl:has(input:checked) .jTHmna_pauseIcon{display:none}.jTHmna_motionControl:has(input:checked) .jTHmna_playIcon{display:inline}.jTHmna_demoBody{background:linear-gradient(160deg,#fff,#f8f8fb);border-radius:0 0 16px 16px;padding:18px}.jTHmna_demoMeta{color:#475569;justify-content:space-between;gap:12px;margin-bottom:10px;font-size:11px;display:flex}.jTHmna_demoMeta span:first-child{color:#0f172a;font-weight:600}.jTHmna_studyCard{--scene-height:116px;text-align:center;background:#fff;border:1px solid #e5e7eb;border-radius:12px;padding:20px 18px 16px;position:relative;box-shadow:0 2px 6px #0f172a05}.jTHmna_prompt{color:#0f172a;font-family:var(--font-display);letter-spacing:-.03em;margin:12px 0;font-size:27px;font-weight:600;line-height:1.3}.jTHmna_hint{color:#64748b;margin:0;font-size:13px;line-height:1.6}.jTHmna_scene{height:var(--scene-height);margin-bottom:16px;position:relative}.jTHmna_frame{animation:jTHmna_recall var(--demo-cycle,12s) linear infinite;animation-play-state:var(--demo-play-state,running);flex-direction:column;justify-content:center;align-items:center;display:flex;position:absolute;inset:0}.jTHmna_recallFrame{opacity:1}.jTHmna_answerFrame{opacity:0;animation-name:jTHmna_answer}.jTHmna_reviewFrame{opacity:0;animation-name:jTHmna_review}.jTHmna_phase{color:#64748b;text-transform:uppercase;letter-spacing:.1em;margin-top:18px;font-size:9px;font-weight:600}.jTHmna_check{color:#4f46e5;background:#f1f0fe;border-radius:50%;place-items:center;width:30px;height:30px;margin-bottom:10px;font-size:18px;display:grid}.jTHmna_reviewTitle{color:#4f46e5;margin:0 0 6px;font-size:16px;font-weight:600}.jTHmna_reviewFrame .jTHmna_phase{margin-top:10px}.jTHmna_demo:has(.jTHmna_motionControl input:checked) .jTHmna_frame,.jTHmna_demo:has(.jTHmna_answer[open]) .jTHmna_frame{animation-play-state:paused}.jTHmna_studyCard:has(.jTHmna_answer[open]) .jTHmna_scene{visibility:hidden}.jTHmna_answer{position:relative}.jTHmna_answer summary{color:#4f46e5;cursor:pointer;background:#f5f4ff;border:1px solid #e0def9;border-radius:8px;justify-content:center;align-items:center;gap:18px;min-height:44px;padding:12px 16px;font-size:12px;font-weight:600;list-style:none;display:flex}.jTHmna_answer summary:hover{background:#edebff}.jTHmna_answer summary::-webkit-details-marker{display:none}.jTHmna_openLabel,.jTHmna_answer[open] .jTHmna_closedLabel{display:none}.jTHmna_answer[open] .jTHmna_openLabel{display:inline}.jTHmna_answerContent{height:var(--scene-height);background:#fff;flex-direction:column;justify-content:center;align-items:center;display:flex;position:absolute;bottom:calc(100% + 16px);left:0;right:0}.jTHmna_japanese{color:#4f46e5;margin-bottom:5px;font-size:22px}.jTHmna_reading{color:#475569;margin-bottom:8px;font-size:12px}.jTHmna_explanation{color:#64748b;margin-bottom:0;font-size:11px;line-height:1.7}.jTHmna_prompt,.jTHmna_reading{font-family:Noto Sans JP Variable,sans-serif}.jTHmna_demoFooter{color:#64748b;text-align:center;margin-top:14px;font-size:11px}@keyframes jTHmna_recall{0%,26%,to{opacity:1}29%,97%{opacity:0}}@keyframes jTHmna_answer{0%,29%,63%,to{opacity:0}32%,60%{opacity:1}}@keyframes jTHmna_review{0%,63%,97%,to{opacity:0}66%,94%{opacity:1}}@media (prefers-reduced-motion:reduce){.jTHmna_frame{animation:none}.jTHmna_answerFrame,.jTHmna_reviewFrame{display:none}.jTHmna_motionControl{visibility:hidden}}@media (width<=767px){.jTHmna_prompt{font-size:25px}.jTHmna_studyCard{padding-inline:14px}}