:root{color:#000;background:#f2f2f7;color-scheme:light;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}*{box-sizing:border-box}body{margin:0;min-width:320px;min-height:100vh;color:#000;background:#f2f2f7}button,input,textarea,select{font:inherit}button{min-height:40px;border:1px solid #d1d1d6;border-radius:10px;background:#fff;color:#000;font-weight:650;cursor:pointer}button:disabled{cursor:not-allowed;opacity:.45}.app-shell{min-height:100vh;padding:max(18px,env(safe-area-inset-top)) 14px calc(104px + env(safe-area-inset-bottom))}.page{max-width:820px;margin:0 auto}.page-header{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:16px}.home-actions{display:flex;flex-wrap:wrap;justify-content:flex-end;gap:8px}.ios-header{position:sticky;top:0;z-index:3;margin:-4px -14px 12px;padding:8px 14px 10px;background:#f2f2f7e0;-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px)}.eyebrow{margin:0 0 4px;font-size:.78rem;font-weight:700}h1,h2{margin:0;color:#000;letter-spacing:0}h1{font-size:2rem;font-weight:800}h2{font-size:1.1rem}.primary-button{border-color:#007aff;background:#007aff;color:#fff;padding:0 16px}.plain-button{border:0;background:transparent;color:#007aff;padding:0 4px}.full-width-button{width:100%;min-height:52px;border-radius:14px}.section-block,.vocab-card,.lookup-panel{border:1px solid #e5e5ea;border-radius:12px;background:#fff;padding:16px}.vocabulary-page,.vocab-review-card{display:grid;gap:12px}.vocab-review-card h2{font-size:2rem}.review-sentence{margin:0;border-radius:12px;background:#f5f5f7;padding:14px;font-size:1.18rem;line-height:1.7}.review-answer{display:grid;gap:6px;border-radius:12px;background:#f5f5f7;padding:12px}.review-answer p,.review-answer h2{margin:0}.review-answer small{color:#636366}.ios-panel{border:1px solid #e5e5ea;border-radius:16px;background:#fffffffa;padding:16px;box-shadow:0 10px 28px #0f172a0f}.compact-panel{margin-top:12px;padding:14px}.diary-list{display:grid;gap:10px;margin-top:12px}.diary-row{display:grid;gap:4px;width:100%;padding:12px;text-align:left}.month-calendar{margin:18px 0;border:1px solid #e5e5ea;border-radius:16px;background:#fff;padding:12px;box-shadow:0 10px 28px #0f172a0f}.month-header{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:10px}.month-header h2{min-width:7em;text-align:center}.weekday-row,.month-grid{display:grid;grid-template-columns:repeat(7,minmax(0,1fr));gap:6px}.weekday-row{margin-bottom:6px;color:#4b5563;font-size:.78rem;text-align:center}.weekday-row span{display:grid;gap:1px}.weekday-row strong{font-size:.82rem}.weekday-row small{font-size:.66rem}.month-day{position:relative;display:grid;grid-template-rows:auto auto 1fr;gap:3px;min-width:0;min-height:78px;padding:7px 4px;text-align:left}.month-day strong{font-size:.9rem}.month-day.muted{color:#6b7280;background:#f7f9fc}.month-day.has-diary{border-color:#34c759;background:#f1fbf4}.month-lunar{overflow:hidden;min-width:0;color:#374151;font-size:.68rem;line-height:1.2;text-overflow:ellipsis;white-space:nowrap}.month-lunar{color:#6b7280}.diary-dot{position:absolute;top:7px;right:7px;width:6px;height:6px;border-radius:999px;background:#34c759}.event-labels{display:flex;flex-wrap:wrap;gap:2px;min-width:0}.event-labels span{max-width:100%;overflow:hidden;border-radius:4px;background:#eef2ff;padding:1px 3px;color:#3730a3;font-size:.62rem;line-height:1.25;text-overflow:ellipsis;white-space:nowrap}.field{display:grid;gap:8px;margin-bottom:14px;font-weight:700}.field span{color:#3a3a3c;font-size:.86rem}.field input,.field textarea,.vocab-card textarea,.vocab-card select{width:100%;border:1px solid #e5e5ea;border-radius:12px;padding:12px;color:#000;background:#fbfbfd}.diary-textarea{min-height:180px;resize:vertical;line-height:1.7}.chinese-diary-textarea{min-height:52vh}.english-draft{min-height:34vh}.segmented-control{display:grid;grid-template-columns:repeat(2,1fr);gap:4px;margin-bottom:12px;border-radius:12px;background:#e5e5ea;padding:3px}.segmented-control button{min-height:34px;border:0;border-radius:9px;background:transparent;color:#3a3a3c}.segmented-control button.active{background:#fff;color:#000;box-shadow:0 1px 4px #0f172a1f}.style-toolbar,.action-row,.player-bar{display:flex;flex-wrap:wrap;gap:10px;align-items:center;margin:14px 0}.style-toolbar{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr) auto}.style-toolbar label{display:grid;gap:6px;min-width:0}.style-toolbar input[type=color]{width:44px;height:34px;border:0;padding:0;background:transparent}.sticky-action{position:sticky;bottom:calc(72px + env(safe-area-inset-bottom));z-index:2;margin-top:14px;padding:8px 0;background:linear-gradient(#f2f2f700,#f2f2f7f5 18%)}.sentence-list{display:grid;gap:12px}.reader-mode-switch{margin-bottom:14px}.sentence{margin:0;border-left:4px solid transparent;border-radius:12px;background:#fff;padding:14px;line-height:1.7}.sentence.active{border-left-color:#22c55e;background:#eefbf3}.sentence small{display:block;margin-top:8px}.word-token{min-height:0;border:0;border-radius:4px;padding:1px 2px;background:transparent;text-decoration:underline;text-underline-offset:3px}.focus-reader-card,.dictation-card{display:grid;gap:12px}.sentence-count{margin:0;color:#636366;font-size:.86rem;font-weight:700}.focus-sentence{margin:0;color:#111827;font-size:1.32rem;line-height:1.8}.dictation-card textarea{width:100%;min-height:160px;resize:vertical;border:1px solid #e5e5ea;border-radius:12px;background:#fbfbfd;padding:12px;color:#000}.dictation-answer{background:#f5f5f7}.sentence-preview{margin-top:12px}.sentence-preview h2{margin-bottom:10px}.sentence-preview-list{display:grid;gap:10px}.sentence-preview-list p{margin:0;border-radius:12px;background:#f5f5f7;padding:12px;line-height:1.65}.sentence-preview-list small{display:block;margin-top:6px;color:#636366}.bottom-nav{position:fixed;right:0;bottom:0;left:0;display:grid;grid-template-columns:repeat(4,1fr);gap:8px;padding:10px 12px max(10px,env(safe-area-inset-bottom));border-top:1px solid #d1d1d6;background:#fffffff5;-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px)}.bottom-nav button{border:0;border-radius:12px;background:#f2f2f7;color:#1c1c1e}.app-version{position:fixed;right:12px;bottom:calc(64px + env(safe-area-inset-bottom));border:1px solid #e5e5ea;border-radius:999px;background:#fffffff5;padding:4px 8px;color:#4b5563;font-size:.72rem}.empty-state,.error-text{color:#000}@media(max-width:520px){.month-calendar{padding:10px}.month-header h2{font-size:.95rem}.month-day{min-height:66px;padding:6px 3px}.event-labels span{font-size:.56rem}.style-toolbar{grid-template-columns:1fr}}