.big-btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:var(--touch-min);padding:14px 28px;border:none;border-radius:999px;font-family:var(--font-cn);font-size:var(--fs-body);font-weight:700;cursor:pointer;-webkit-user-select:none;user-select:none;transition:transform .12s ease,box-shadow .12s ease,filter .12s ease}.big-btn:active{transform:scale(.96)}.big-btn--lg{width:100%;font-size:22px;padding:18px 24px}.big-btn--md{font-size:18px;padding:12px 20px}.big-btn--primary{background:var(--color-primary);color:#fff;box-shadow:0 6px 16px #5b8def59}.big-btn--success{background:var(--color-success);color:#fff;box-shadow:0 6px 16px #4caf7d59}.big-btn--accent{background:var(--color-accent);color:var(--color-text);box-shadow:0 6px 16px #00000014}.big-btn--ghost{background:var(--color-primary-soft);color:var(--color-primary)}.big-btn:disabled{opacity:.5;cursor:not-allowed}.page{display:flex;flex-direction:column;gap:var(--space-md)}.page-head{padding-top:var(--space-sm)}.page-title{font-size:var(--fs-title);color:var(--color-text)}.page-sub{color:var(--color-text-soft);margin-top:4px}.page-actions{display:flex;flex-direction:column;gap:var(--space-sm);margin-top:var(--space-sm)}.task-card{display:flex;flex-direction:column;gap:var(--space-sm)}.task-row{display:flex;align-items:center;gap:var(--space-sm);font-size:var(--fs-body)}.task-emoji{font-size:30px}.task-note{color:var(--color-text-soft);font-size:15px}.device-item{border-bottom:1px solid var(--color-line, #eee);padding:10px 12px;border-radius:12px}.device-current{background:var(--color-primary-soft);border:2px solid var(--color-primary);padding:10px 12px}.device-current .task-note{color:var(--color-text)}.word-card{display:flex;flex-direction:column;align-items:center;gap:var(--space-sm);min-height:320px;justify-content:center}.word-big{font-family:var(--font-en);font-size:var(--fs-en-word);font-weight:800;color:var(--color-primary)}.word-phonetic{color:var(--color-text-soft);font-size:20px}.word-cn{font-size:var(--fs-title)}.source-chips{display:flex;flex-wrap:wrap;gap:var(--space-sm)}.chip{background:var(--color-primary-soft);color:var(--color-primary);border-radius:999px;padding:10px 16px;font-weight:600}.word-chips{display:flex;gap:8px;justify-content:center}.chip-warn{background:var(--color-accent-soft);color:var(--color-text)}.chip-ok{background:var(--color-success-soft);color:var(--color-success)}.flip-card{cursor:pointer;min-height:340px}.word-pos{color:var(--color-text-soft);font-size:18px}.word-example{font-family:var(--font-en);font-size:20px;color:var(--color-primary);margin-top:8px;line-height:1.5}.word-example-cn{color:var(--color-text-soft);font-size:16px;margin-top:4px}.word-sources{margin-top:12px;font-size:14px;color:var(--color-text-soft);background:var(--color-primary-soft);padding:6px 14px;border-radius:999px}.quiz-card{text-align:center}.quiz-focus-badge{margin-bottom:10px}.quiz-focus-badge .chip{font-size:14px;padding:6px 12px;font-family:var(--font-cn)}.quiz-word{font-family:var(--font-en);font-size:var(--fs-en-word);font-weight:800;color:var(--color-primary);line-height:1.2;margin-bottom:18px}.quiz-phonetic{display:block;font-family:var(--font-cn);font-size:18px;color:var(--color-text-soft);font-weight:400;margin-top:4px}.quiz-options{display:grid;grid-template-columns:1fr 1fr;gap:var(--space-sm);margin-top:2px}.quiz-card .big-btn{margin-top:var(--space-md)}.quiz-card .task-note{margin-top:10px}.quiz-option{min-height:76px;border-radius:var(--radius-md);border:3px solid var(--color-line);background:var(--color-card);font-family:var(--font-cn);font-size:20px;font-weight:600;color:var(--color-text);cursor:pointer;transition:transform .1s ease,border-color .1s ease,background .2s ease}.quiz-option:active{transform:scale(.97)}.quiz-option.correct{background:var(--color-success);color:#fff;border-color:var(--color-success)}.quiz-option.wrong{background:var(--color-danger);color:#fff;border-color:var(--color-danger)}.quiz-option.dim{opacity:.45}.ps-modes{display:flex;flex-wrap:wrap;gap:var(--space-xs)}.chip-btn{cursor:pointer;border:2px solid transparent;background:var(--color-primary-soft);color:var(--color-primary);border-radius:999px;padding:8px 14px;font-weight:600;font-size:14px}.chip-btn.chip-active{border-color:var(--color-primary);background:var(--color-card)}.pin-input{width:100%;padding:14px 18px;font-size:24px;letter-spacing:8px;text-align:center;border:3px solid var(--color-line);border-radius:var(--radius-md);font-family:var(--font-cn);color:var(--color-text);background:var(--color-card)}.pin-input:focus{outline:none;border-color:var(--color-primary)}.cal-grid{display:grid;grid-template-columns:repeat(7,1fr);gap:4px}.cal-dow{text-align:center;font-size:13px;color:var(--color-text-soft);font-weight:700}.cal-cell{aspect-ratio:1;display:flex;align-items:center;justify-content:center;border-radius:10px;background:var(--color-bg);font-size:15px;color:var(--color-text)}.cal-cell.done{background:var(--color-success-soft);font-size:20px}.cal-cell.today{border:2px solid var(--color-primary);font-weight:800}.cal-cell.cal-link{cursor:pointer;border:none;padding:0;font:inherit;color:inherit}.cal-cell.cal-link:active{transform:scale(.95)}.quiz-info{text-align:left;margin-top:6px;padding:12px;background:var(--color-bg);border-radius:var(--radius-md)}.qi-row{padding:6px 0;border-top:1px dashed var(--color-line)}.qi-row:first-child{border-top:none}.qi-pos{color:var(--color-primary);font-weight:700;margin-right:6px}.qi-cn{font-weight:700;font-size:18px}.qi-coll{color:var(--color-text-soft);font-size:14px;margin-top:2px}.qi-ex{font-family:var(--font-en);color:var(--color-text);margin-top:2px}.qi-excn{color:var(--color-text-soft);font-size:14px}.row{display:flex;flex-wrap:wrap;gap:var(--space-xs)}.fb-input{width:100%;padding:14px;font-size:17px;font-family:var(--font-cn);border:3px solid var(--color-line);border-radius:var(--radius-md);color:var(--color-text);background:var(--color-card);resize:vertical}.fb-input:focus{outline:none;border-color:var(--color-primary)}.print-wordlist{list-style:none;margin:4px 0 8px;padding:0;display:flex;flex-direction:column;gap:6px}.print-wordlist li{display:flex;align-items:center;gap:8px;flex-wrap:wrap;font-size:16px}.print-wordlist b{font-family:var(--font-en);font-size:18px;color:var(--color-primary)}.wl-phone{color:var(--color-text-soft);font-size:13px}.cal-marks{display:block;font-size:8px;line-height:1}.grammar-note{display:flex;flex-wrap:wrap;gap:2px 8px;align-items:baseline;background:#fff8e6;border:1px dashed #e0b84c;border-radius:6px;padding:5px 8px;margin-top:6px;font-size:12px;line-height:1.45;color:#7a5c00}.grammar-note--compact{font-size:9px;padding:3px 5px;margin-top:3px}.grammar-note-label{font-weight:700}.grammar-note-line{white-space:normal}.phrase-note{display:flex;flex-wrap:wrap;gap:4px 10px;margin-top:8px;padding:8px 10px;background:var(--color-primary-soft, #eef4ea);border-radius:10px;font-size:15px;line-height:1.5}.phrase-note-label{font-weight:700;color:var(--color-primary, #4a7c3f);width:100%;font-size:13px}.phrase-note-item b{color:var(--color-primary, #4a7c3f)}.phrase-note-ex{color:var(--color-text-soft, #777);margin-left:4px}.phrase-note-excn{color:var(--color-text-soft, #999);font-size:13px}.phrase-note--compact{gap:2px 8px;padding:6px 8px;font-size:13px;margin-top:4px}.phrase-note--compact .phrase-note-item{background:var(--color-primary-soft, #eef4ea);border-radius:6px;padding:2px 6px}.phrase-note--compact .phrase-note-label{width:auto;margin-right:4px}.phrase-search{margin-bottom:12px}.phrase-search-input{width:100%;padding:12px 16px;font-size:16px;font-family:var(--font-cn);border:2px solid var(--color-line);border-radius:var(--radius-md, 16px);color:var(--color-text);background:var(--color-card);box-sizing:border-box}.phrase-search-input:focus{outline:none;border-color:var(--color-primary)}.phrase-search-clear{margin-top:8px}.phrase-search-count{margin:8px 0 0;font-size:13px;color:var(--color-text-soft)}.phrase-list{display:flex;flex-wrap:wrap;gap:4px 16px;margin-top:6px}.phrase-line{display:inline-flex;flex-wrap:wrap;align-items:baseline;gap:0 6px}.phrase-cn{color:var(--color-text-soft)}.phrase-ex{color:var(--color-text-soft);font-size:14px}.print-sheet{width:100%;background:#fff;color:#222;border-radius:4px;padding:10px 12px;box-shadow:var(--shadow-card);font-size:11px;line-height:1.35}.ps-head{display:flex;justify-content:space-between;align-items:baseline;border-bottom:2px solid #333;padding-bottom:3px;margin-bottom:6px}.ps-head h2{font-size:17px;margin:0}.ps-head span{font-size:10px;color:#555}.ps-sec{margin-bottom:8px}.ps-sec h3{font-size:12px;margin:0 0 6px;border-left:4px solid #888;padding-left:6px}.ps-foot{margin-top:6px;padding-top:3px;border-top:1px solid #ccc;font-size:9px;color:#777}.words-grid{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:8px;align-items:stretch}.word-col{border:1.2px solid #bbb;border-radius:5px;padding:6px;display:flex;flex-direction:column;break-inside:avoid}.copy-num{font-size:10px;color:#666;min-width:16px}.info-head{display:flex;align-items:baseline;gap:4px}.info-word{font-family:var(--font-en);font-size:16px;font-weight:800;letter-spacing:.3px}.copy-phonetic{font-family:Charis SIL,DejaVu Sans,Arial,serif;font-size:10px;color:#444}.info-meaning{padding:2px 0 3px;border-top:1px dashed #ddd;margin-top:2px}.info-meaning:first-of-type{border-top:none;margin-top:0}.info-row{display:flex;align-items:baseline;gap:4px}.info-pos{font-weight:700;color:#b3541e;font-size:10px;min-width:24px}.info-cn{font-size:12px;font-weight:700}.info-coll{font-size:9px;color:#555}.info-ex{font-family:var(--font-en);font-size:10px;color:#333}.info-excn{font-size:9px;color:#666}.copy-block{margin-top:auto;display:flex;flex-direction:column}.copy-label{font-size:9px;color:#555;margin:3px 0 1px}.copy-line{position:relative;height:48px;border-top:1.2px solid #999;border-bottom:1.2px solid #999}.copy-line:before{content:"";position:absolute;left:0;right:0;top:68%;border-top:1.2px solid #999}.copy-line:after{content:"";position:absolute;left:0;right:0;top:42%;border-top:1px dotted #aaa}.copy-meaning-line{display:flex;align-items:center;gap:4px;margin-top:2px;min-height:16px;border-bottom:1.2px solid #666}.dict-row{display:flex;align-items:baseline;gap:6px;padding:7px 0;border-bottom:1px dashed #ccc}.dict-word{font-family:var(--font-en);font-weight:700;font-size:12px;min-width:84px}.dict-blank{flex:1;border-bottom:1.2px solid #666;height:13px}.ps-dict-tag{color:#b3541e;font-size:9px;font-style:normal}.print-preview{max-width:297mm;margin:0 auto}@page{size:A4 landscape;margin:8mm}@media print{body{background:#fff!important}.print-preview{max-width:none;width:100%;margin:0}.print-sheet{box-shadow:none;border-radius:0;padding:0}.print-sheet,.print-sheet *{color:#000}.info-block{background:#fff!important;-webkit-print-color-adjust:exact;print-color-adjust:exact}.word-col{break-inside:avoid}}.theme-switcher{display:flex;flex-direction:column;gap:var(--space-sm)}.theme-title{font-size:22px}.theme-hint{color:var(--color-text-soft);font-size:15px}.theme-grid{display:grid;grid-template-columns:1fr 1fr;gap:var(--space-sm)}.theme-option{display:flex;flex-direction:column;align-items:flex-start;gap:6px;border:3px solid var(--color-line);border-radius:var(--radius-md);background:var(--color-card);padding:var(--space-sm);cursor:pointer;text-align:left;font-family:var(--font-cn);transition:transform .12s ease,border-color .12s ease}.theme-option:active{transform:scale(.97)}.theme-option.active{border-color:var(--color-primary)}.theme-swatch{width:100%;height:52px;border-radius:12px;border:2px solid rgba(0,0,0,.06)}.theme-name{font-size:17px;font-weight:700;color:var(--color-text)}.theme-desc{font-size:14px;color:var(--color-text-soft)}.grammar-sheet{max-width:297mm;margin:0 auto}.grammar-meta{font-size:12px;color:#777;margin:4px 0 12px}.grammar-section{background:var(--card-bg, #fff);border-radius:10px;padding:12px 14px;margin-bottom:14px;box-shadow:var(--shadow-card)}.grammar-title{font-size:18px;margin:0 0 2px}.grammar-sub{font-size:12px;color:#666;margin:0 0 10px}.grammar-table{width:100%;border-collapse:collapse;font-size:12px}.grammar-table th,.grammar-table td{border:1px solid #ccc;padding:4px 8px;text-align:left}.grammar-table th{background:#f0f0f0;font-weight:700}.grammar-table tr:nth-child(2n) td{background:#fafafa}.grammar-sections .grammar-sec{margin-bottom:8px}.grammar-sec-title{font-size:13px;margin:8px 0 2px;color:#b3541e}.grammar-line{font-size:12px;margin:1px 0;line-height:1.5}.grammar-extra{margin-top:10px}.grammar-extra-title{font-size:14px;margin:0 0 4px}@media print{.grammar-section{box-shadow:none;border:1px solid #ccc;break-inside:auto}.grammar-section{page-break-before:always}.grammar-section:first-of-type{page-break-before:avoid}.grammar-table th,.grammar-table td{color:#000}.grammar-table th{background:#eee!important;-webkit-print-color-adjust:exact;print-color-adjust:exact}.grammar-table tr{break-inside:avoid}}.onboarding-form{display:flex;flex-direction:column;gap:12px}.onboarding-form label{font-size:14px;font-weight:600;color:var(--color-text)}.onboarding-form select,.onboarding-form input[type=text],.onboarding-form textarea{width:100%;padding:10px 12px;font-size:16px;border:2px solid var(--color-border, #d9d2e8);border-radius:14px;background:#fff;color:var(--color-text)}.onboarding-form textarea{min-height:64px;resize:vertical}.onboarding-form .row{display:grid;grid-template-columns:1fr 1fr;gap:10px}.onboarding-form .check-row{display:flex;align-items:center;gap:8px;font-size:14px}.onboarding-form .check-row input{width:20px;height:20px}.quiz-options{display:flex;flex-direction:column;gap:10px;margin-top:14px}.onboarding-progress{font-size:13px;color:var(--color-muted, #8a7f9d);text-align:center;margin-bottom:6px}:root{--font-cn: "PingFang SC", "Hiragino Sans GB", "Noto Sans SC", "Microsoft YaHei", sans-serif;--font-en: "Nunito", "Baloo 2", "Comic Sans MS", "PingFang SC", sans-serif;--fs-hero: 32px;--fs-title: 26px;--fs-body: 20px;--fs-en: 30px;--fs-en-word: 42px;--radius-lg: 24px;--radius-md: 16px;--space-xs: 6px;--space-sm: 12px;--space-md: 20px;--space-lg: 28px;--touch-min: 52px}:root,[data-theme=chunhai]{--color-bg: #eff6e9;--bg-gradient: linear-gradient(150deg, #f7fbf2 0%, #c4e3b4 100%);--color-card: #fdfbf4;--color-primary: #5f9e6e;--color-primary-soft: #e1f0da;--color-accent: #f0b0a4;--color-accent-soft: #fdeee7;--color-success: #57b380;--color-success-soft: #e4f6ec;--color-danger: #f09fac;--color-danger-soft: #fdeaea;--color-text: #3d4a3a;--color-text-soft: #7c8a76;--color-line: #dcebd3;--grad-holo: linear-gradient(120deg, #86f1e1, #8de3ee, #cea1eb, #e395b5, #f1cea4);--shadow-card: 0 6px 20px rgba(95, 158, 110, .15)}[data-theme=mint]{--color-bg: #eaf7f2;--bg-gradient: linear-gradient(150deg, #eefaf6 0%, #9fd9cb 100%);--color-card: #fbfefc;--color-primary: #2f9488;--color-primary-soft: #dcf4ee;--color-accent: #f0b0a4;--color-accent-soft: #fdeee7;--color-success: #57b380;--color-success-soft: #e4f6ec;--color-danger: #f09fac;--color-danger-soft: #fdeaea;--color-text: #2f4a44;--color-text-soft: #7a948d;--color-line: #d5ebe3;--grad-holo: linear-gradient(120deg, #86f1e1, #8de3ee, #a0ccf1, #cea1eb);--shadow-card: 0 6px 20px rgba(47, 148, 136, .15)}[data-theme=lavender]{--color-bg: #f3eff9;--bg-gradient: linear-gradient(150deg, #f8f3fd 0%, #cdbbeb 100%);--color-card: #fdfbff;--color-primary: #8b72be;--color-primary-soft: #ebe4f7;--color-accent: #f1cea4;--color-accent-soft: #fbf3e0;--color-success: #57b380;--color-success-soft: #e4f6ec;--color-danger: #f09fac;--color-danger-soft: #fdeaea;--color-text: #453d55;--color-text-soft: #8b84a0;--color-line: #e4dcf0;--grad-holo: linear-gradient(120deg, #cea1eb, #e395b5, #f1cea4, #8de3ee);--shadow-card: 0 6px 20px rgba(139, 114, 190, .15)}[data-theme=apricot]{--color-bg: #fbf1ea;--bg-gradient: linear-gradient(150deg, #fef6ee 0%, #f0c6ac 100%);--color-card: #fffcf8;--color-primary: #c97f6f;--color-primary-soft: #f9e4dc;--color-accent: #6fcdbb;--color-accent-soft: #e2f6f1;--color-success: #57b380;--color-success-soft: #e4f6ec;--color-danger: #e88a8a;--color-danger-soft: #fdeaea;--color-text: #4a3b33;--color-text-soft: #9a8a80;--color-line: #f0e0d6;--grad-holo: linear-gradient(120deg, #f1cea4, #f0b0a4, #e395b5, #cea1eb);--shadow-card: 0 6px 20px rgba(201, 127, 111, .16)}[data-theme=pinkblue]{--color-bg: #fbf1f7;--bg-gradient: linear-gradient(150deg, #fce4f1 0%, #b9d9fa 100%);--color-card: #fdfdff;--color-primary: #c8608f;--color-primary-soft: #fce4f0;--color-accent: #6fa8e8;--color-accent-soft: #e3eefc;--color-success: #57b380;--color-success-soft: #e4f6ec;--color-danger: #f09fac;--color-danger-soft: #fdeaea;--color-text: #3a3550;--color-text-soft: #8a83a3;--color-line: #e6e1f2;--grad-holo: linear-gradient(120deg, #f1a7ce, #e395b5, #a0ccf1, #8de3ee);--shadow-card: 0 6px 20px rgba(200, 96, 143, .16)}[data-theme=blue]{--color-bg: #e2edfa;--bg-gradient: linear-gradient(150deg, #deebfb 0%, #bcdaf7 100%);--color-card: #fdfeff;--color-primary: #3579cf;--color-primary-soft: #e3edfc;--color-accent: #f0b0a4;--color-accent-soft: #fdeee7;--color-success: #57b380;--color-success-soft: #e4f6ec;--color-danger: #f09fac;--color-danger-soft: #fdeaea;--color-text: #24365c;--color-text-soft: #7e8fb5;--color-line: #d9e4f5;--grad-holo: linear-gradient(120deg, #a7d3f5, #7fb7f0, #5f96e8, #b9d9fa);--shadow-card: 0 6px 20px rgba(53, 121, 207, .16)}[data-theme=pink]{--color-bg: #fdf6f8;--bg-gradient: linear-gradient(150deg, #fff5f8 0%, #f7c6d7 100%);--color-card: #fffdfe;--color-primary: #cd4e80;--color-primary-soft: #fbe6ee;--color-accent: #f0a060;--color-accent-soft: #fbe6d5;--color-success: #57b380;--color-success-soft: #e4f6ec;--color-danger: #f09fac;--color-danger-soft: #fdeaea;--color-text: #4a2f40;--color-text-soft: #9a7c8c;--color-line: #f7d7e5;--grad-holo: linear-gradient(120deg, #ffc9de, #f7a6c6, #f0a060, #ffd6a5);--shadow-card: 0 6px 20px rgba(212, 87, 139, .16)}[data-theme=yellow]{--color-bg: #fdf8e8;--bg-gradient: linear-gradient(150deg, #fff9e6 0%, #f7de92 100%);--color-card: #fffdf4;--color-primary: #a9740f;--color-primary-soft: #f9edcc;--color-accent: #ee9a5a;--color-accent-soft: #fcebdc;--color-success: #57b380;--color-success-soft: #e4f6ec;--color-danger: #f09fac;--color-danger-soft: #fdeaea;--color-text: #4a3b1e;--color-text-soft: #9a8a5c;--color-line: #f1e3b8;--grad-holo: linear-gradient(120deg, #ffe9a3, #ffd35e, #ee9a5a, #f7a6c6);--shadow-card: 0 6px 20px rgba(169, 116, 15, .15)}*{box-sizing:border-box;margin:0;padding:0}html{background:var(--bg-gradient, var(--color-bg));min-height:100%}body{font-family:var(--font-cn);font-size:var(--fs-body);color:var(--color-text);background:transparent;min-height:100%;-webkit-font-smoothing:antialiased;overscroll-behavior-y:none}#root{height:100%}.app-shell{max-width:720px;margin:0 auto;min-height:100dvh;display:flex;flex-direction:column;padding-bottom:calc(72px + env(safe-area-inset-bottom))}.app-main{flex:1;padding:var(--space-md)}.tab-bar{position:fixed;bottom:0;left:0;right:0;display:flex;justify-content:space-around;align-items:center;background:var(--color-card);border-top:2px solid var(--color-line);padding:8px env(safe-area-inset-right) calc(8px + env(safe-area-inset-bottom)) env(safe-area-inset-left);z-index:20}.tab-item{display:flex;flex-direction:column;align-items:center;gap:2px;min-width:72px;min-height:var(--touch-min);justify-content:center;text-decoration:none;color:var(--color-text-soft);font-size:15px;font-weight:600}.tab-item.active{color:var(--color-primary)}.tab-emoji{font-size:26px;line-height:1}.card{background:var(--color-card);border-radius:var(--radius-lg);box-shadow:var(--shadow-card);padding:var(--space-md)}.hidden{display:none!important}@media print{.tab-bar,.no-print{display:none!important}.app-shell{max-width:100%;padding:0}.app-main{padding:0}}