.login-gate{max-width:560px;margin:2rem auto;padding:2.5rem;display:grid;gap:1.25rem}.login-gate h1{font-size:2rem}.login-gate .button{width:100%}.correction-card{text-align:left;border-left:4px solid #15826d}.correction-card h3{margin:1rem 0 .5rem}.correction-card p{margin:.65rem 0;white-space:pre-wrap;overflow-wrap:anywhere}.lesson-reflection{margin-top:2rem;text-align:left}.lesson-reflection>p{margin:.7rem 0 1.2rem}.writing-board{width:min(100%,420px);aspect-ratio:1;border:1px solid #abc3d0;background:#fff;margin:1rem auto}.writing-board canvas{display:block;width:100%;height:100%;touch-action:none}.practice .mode-switch{flex-wrap:wrap;position:sticky;top:-1.7rem;z-index:20;margin:0 -1.7rem 1rem;padding:.5rem 1.7rem;background:#f2e9e3;border-bottom:1px solid #e2d5d1}.practice audio{width:100%;margin:1rem 0}.practice textarea,textarea{width:100%;min-height:90px;font:inherit;padding:.8rem;border:1px solid #b9cbd2;border-radius:10px;resize:vertical}.practice details,details{margin:.8rem 0}summary{cursor:pointer;font-weight:650}#practice-status,.retry-status{margin:1rem 0;color:#146d5b}.result{max-width:900px}.correction-card form{margin-top:1rem}#dialog{max-height:90dvh;overflow:auto}#rule-preview{border-top:1px solid #cbd9e2;padding-top:1rem}.mode-switch{overflow-x:auto}.table-wrap td{overflow-wrap:anywhere;max-width:400px}.practice-role-popup{position:fixed;inset:0;z-index:40;display:grid;place-items:center;padding:1.25rem;background:#34171a66}.practice-role-popup .card{width:min(100%,470px);box-shadow:0 24px 70px #34171a55}.practice-role-popup h3{margin:.5rem 0}.practice-role-popup p{margin:.6rem 0}.practice-role-popup .role-badge{display:inline-flex;padding:.3rem .7rem;border-radius:999px;background:#f5e6de;color:#852d31;font-weight:700}.role-help{display:block;margin-left:.25rem}@media(max-width:600px){.login-gate{padding:1.5rem;margin:.5rem auto}.practice .button{min-height:44px}.correction-card{padding:1rem}.practice .mode-switch{top:-.5rem;margin-left:-1rem;margin-right:-1rem;padding-left:1rem;padding-right:1rem}.practice-role-popup{padding:.75rem}}
.stroke-panel{padding:1rem;border:1px solid #bddbd5;border-radius:18px;background:#f3fbf9;margin-bottom:1.5rem}.stroke-target{width:100%;max-width:320px;min-height:180px;margin:1rem auto;touch-action:none;background:linear-gradient(90deg,transparent 49.8%,#c6dad7 50%,transparent 50.2%),linear-gradient(transparent 49.8%,#c6dad7 50%,transparent 50.2%),white;border:1px solid #c6dad7;border-radius:8px}.stroke-panel button[aria-pressed=true]{background:#087d68;color:white}.stroke-status{min-height:3rem}.stroke-panel a{font-size:.875rem}
.stroke-fallback{position:relative;width:min(100%,320px);aspect-ratio:1;margin:1.4rem auto;border:1px solid #c6dad7;background:linear-gradient(90deg,transparent 49.8%,#c6dad7 50%,transparent 50.2%),linear-gradient(transparent 49.8%,#c6dad7 50%,transparent 50.2%),#fff;border-radius:8px;overflow:hidden;touch-action:none}.stroke-fallback .stroke-ghost{position:absolute;inset:0;display:grid;place-items:center;font-family:"Songti SC","Noto Serif CJK SC",SimSun,serif;font-size:12rem;line-height:1;color:#decfc8;pointer-events:none;user-select:none;transition:opacity .15s}.stroke-fallback .stroke-ghost.is-hidden{opacity:0}.stroke-fallback canvas{position:absolute;inset:0;width:100%;height:100%;touch-action:none;cursor:crosshair}
.practice-guide-popup{position:fixed;inset:0;z-index:45;display:grid;place-items:center;padding:1.25rem;background:#34171a66}.practice-guide-popup .card{position:relative;width:min(100%,520px);box-shadow:0 24px 70px #34171a55}.practice-guide-popup h3{margin:.55rem 2.6rem .75rem 0;font-size:1.25rem}.practice-guide-popup p{margin:.6rem 0}.practice-guide-popup ol{margin:.7rem 0;padding-left:1.35rem}.practice-guide-popup li+li{margin-top:.45rem}.practice-guide-close{position:absolute;right:1rem;top:1rem;width:36px;height:36px;font-size:1.4rem;line-height:1}.dialogue-overview .dialogue-full-line .hanzi{font-size:1.2rem;margin:.15rem 0}.role-choice{margin-top:1rem;padding:1rem;border-top:1px solid #e7d7cd}.role-choice .toolbar{margin-bottom:0}.pronunciation-words{margin-top:.8rem;padding-top:.8rem;border-top:1px solid #ddc9bd}.pronunciation-words ul{margin:.5rem 0 0;padding-left:1.2rem}.pronunciation-words li+li{margin-top:.7rem}.pronunciation-words .hanzi{font-size:1.15rem;font-weight:700}@media(max-width:600px){.practice-guide-popup{padding:.75rem}.practice-guide-popup .card{padding:1.15rem}.practice-guide-popup .toolbar{display:grid}.practice-guide-popup .toolbar .button{width:100%}}
.premium-plans{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:.75rem;margin-top:.75rem}.premium-plan{display:flex;align-items:flex-start;gap:.7rem;text-align:left;padding:1rem;border:1px solid var(--line);border-radius:10px;background:#fff;color:var(--ink);cursor:pointer}.premium-plan:hover,.premium-plan.selected{border-color:#852d31;background:#fff7f2}.premium-plan-radio{display:grid;place-items:center;width:22px;height:22px;border:1px solid #cba79c;border-radius:50%;flex:0 0 auto;color:#fff;background:#fff;font-size:.8rem}.premium-plan.selected .premium-plan-radio{background:#852d31;border-color:#852d31}.premium-plan strong,.premium-plan small{display:block}.premium-plan small{margin-top:.2rem;color:var(--muted);font-size:.8125rem;font-weight:400}.premium-request-state{min-height:1.4rem}.premium-popup-actions{display:flex;justify-content:flex-end;gap:.75rem;flex-wrap:wrap;margin-top:.5rem}.premium-success{text-align:center;padding:1.5rem .5rem}.premium-success-mark{display:grid;place-items:center;width:48px;height:48px;margin:0 auto .8rem;border-radius:50%;background:#e7f5ec;color:#197044;font-size:1.5rem;font-weight:800}.premium-success p{margin:1rem auto 1.2rem;max-width:440px}@media(max-width:600px){.premium-plans{grid-template-columns:1fr}.premium-popup-actions .button{flex:1}}
.upgrade-course-button{display:inline-flex;align-items:center;justify-content:center;gap:.4rem;border:1px solid #8f302d;background:linear-gradient(135deg,#b43b32,#8f302d);color:#fff;box-shadow:0 6px 16px #8f302d2b;white-space:nowrap}.upgrade-course-button:hover{background:linear-gradient(135deg,#c44b40,#7f2929);color:#fff;transform:translateY(-1px)}.upgrade-course-button .icon{width:16px;height:16px}.account-upgrade-button{margin-top:.8rem}.free-course-upgrade{display:flex;align-items:center;justify-content:space-between;gap:1.2rem;margin-top:1.2rem;border:1px solid #e6c4b5;background:linear-gradient(110deg,#fff8f3,#fff);box-shadow:0 8px 24px #8f302d12}.free-course-upgrade h2{margin:.45rem 0 .35rem}.free-course-upgrade p{margin:0;color:var(--muted);max-width:560px}.free-course-upgrade .eyebrow{color:#9b3c35}.upgrade-plan-chips{display:flex;flex-wrap:wrap;gap:.45rem;margin-top:.9rem}.upgrade-plan-chips span{padding:.28rem .65rem;border-radius:999px;background:#f8e6dd;color:#85322f;font-size:.78rem;font-weight:650}.free-course-upgrade>.button{flex:0 0 auto}@media(max-width:700px){.free-course-upgrade{align-items:stretch;flex-direction:column}.free-course-upgrade>.button{width:100%}.upgrade-course-button{font-size:.78rem;padding:.55rem .7rem}.topstats{align-items:center}}