@import"https://fonts.googleapis.com/css2?family=Playfair+Display:wght@400;600;700&family=Noto+Sans+SC:wght@300;400;500;600;700&family=JetBrains+Mono:wght@400;500&display=swap";:root{--color-primary: #1A4D3E;--color-primary-light: #2D6B5A;--color-primary-dark: #0F352A;--color-bg: #FAF8F5;--color-bg-alt: #F5F3EF;--color-card: #FFFFFF;--color-accent: #E86A33;--color-accent-hover: #D95822;--color-text-primary: #1F2937;--color-text-secondary: #6B7280;--color-text-muted: #9CA3AF;--color-border: #E5E7EB;--color-border-light: #F3F4F6;--shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, .05);--shadow-md: 0 4px 6px -1px rgba(0, 0, 0, .1), 0 2px 4px -1px rgba(0, 0, 0, .06);--shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, .1), 0 4px 6px -2px rgba(0, 0, 0, .05);--radius-sm: 4px;--radius-md: 8px;--radius-lg: 12px;--spacing-xs: 4px;--spacing-sm: 8px;--spacing-md: 16px;--spacing-lg: 24px;--spacing-xl: 32px;--spacing-2xl: 48px}*{margin:0;padding:0;box-sizing:border-box}body{font-family:Noto Sans 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80px);height:fit-content}.filter-section{background:var(--color-card);padding:var(--spacing-lg);border-radius:var(--radius-lg);box-shadow:var(--shadow-md);border:1px solid var(--color-border)}.filter-title{font-family:Playfair Display,serif;font-size:1.5rem;font-weight:600;color:var(--color-primary);margin-bottom:var(--spacing-lg);padding-left:12px;padding-bottom:var(--spacing-md);border-bottom:2px solid var(--color-accent)}.form-group{margin-bottom:var(--spacing-lg)}.form-label{display:block;font-size:.875rem;font-weight:600;color:var(--color-text-primary);margin-bottom:var(--spacing-sm);text-transform:uppercase;letter-spacing:.05em}.form-select{width:100%;padding:var(--spacing-sm) var(--spacing-md);font-size:.95rem;font-family:Noto Sans SC,sans-serif;color:var(--color-text-primary);background-color:var(--color-bg-alt);border:2px solid var(--color-border);border-radius:var(--radius-md);cursor:pointer;transition:all .2s 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ease;box-shadow:var(--shadow-sm)}.query-button:hover:not(:disabled){background-color:var(--color-accent-hover);transform:translateY(-1px);box-shadow:var(--shadow-md)}.query-button:active:not(:disabled){transform:translateY(0)}.query-button:disabled{background-color:var(--color-text-muted);cursor:not-allowed;opacity:.6}.reset-button{width:100%;padding:var(--spacing-md);font-size:1rem;font-weight:600;font-family:Noto Sans SC,sans-serif;color:var(--color-text-primary);background-color:var(--color-bg-alt);border:2px solid var(--color-border);border-radius:var(--radius-md);cursor:pointer;transition:all .2s ease;margin-top:var(--spacing-sm)}.reset-button:hover:not(:disabled){background-color:var(--color-border-light);border-color:var(--color-primary-light)}.reset-button:disabled{opacity:.6;cursor:not-allowed}.error-message{margin-top:var(--spacing-md);padding:var(--spacing-md);background-color:#fee2e2;border:1px solid #FECACA;border-radius:var(--radius-md);color:#dc2626;font-size:.875rem}.content{min-height:600px}.welcome-placeholder{display:flex;flex-direction:column;align-items:center;justify-content:center;height:100%;min-height:500px;text-align:center;color:var(--color-text-secondary)}.placeholder-icon{width:80px;height:80px;margin-bottom:var(--spacing-lg);color:var(--color-primary-light);opacity:.6}.placeholder-icon svg{width:100%;height:100%}.welcome-placeholder h3{font-family:Playfair Display,serif;font-size:1.75rem;font-weight:600;color:var(--color-text-primary);margin-bottom:var(--spacing-sm)}.welcome-placeholder p{font-size:1rem;color:var(--color-text-secondary)}.results-container{animation:fadeIn .3s ease-in}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.results-header{margin-bottom:var(--spacing-xl);padding-bottom:var(--spacing-lg);border-bottom:2px solid var(--color-border)}.results-title{font-family:Playfair 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p{font-size:1rem;color:var(--color-text-secondary)}.empty-state{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:400px;text-align:center;color:var(--color-text-secondary)}.empty-icon{width:72px;height:72px;margin-bottom:var(--spacing-lg);color:var(--color-text-muted);opacity:.5}.empty-icon svg{width:100%;height:100%}.empty-state h3{font-family:Playfair Display,serif;font-size:1.5rem;font-weight:600;color:var(--color-text-primary);margin-bottom:var(--spacing-sm)}.empty-state p{font-size:1rem;color:var(--color-text-secondary)}.unit-checkboxes{display:flex;flex-direction:column;gap:var(--spacing-sm);max-height:300px;overflow-y:auto;padding-right:var(--spacing-sm)}.unit-checkboxes::-webkit-scrollbar{width:6px}.unit-checkboxes::-webkit-scrollbar-track{background:var(--color-bg-alt);border-radius:3px}.unit-checkboxes::-webkit-scrollbar-thumb{background:var(--color-primary-light);border-radius:3px}.unit-selection{display:flex;flex-direction:column;gap:var(--spacing-sm);margin-bottom:var(--spacing-md);padding-bottom:var(--spacing-md);border-bottom:1px solid var(--color-border-light)}.unit-selection:last-child{border-bottom:none;margin-bottom:0;padding-bottom:0}.unit-checkbox{background:linear-gradient(135deg,#fff,#f0fdf4);border:2px solid var(--color-primary);border-radius:var(--radius-md);padding:var(--spacing-sm) var(--spacing-md);transition:all .3s ease}.unit-checkbox:hover{transform:translate(4px);box-shadow:var(--shadow-md)}.unit-checkbox input[type=checkbox]{width:20px;height:20px;accent-color:var(--color-primary)}.choumo-mode-selector{background:linear-gradient(135deg,#fff7ed,#ffedd5);border:2px solid var(--color-accent);border-radius:var(--radius-md);padding:var(--spacing-md);margin-bottom:var(--spacing-md)}.mode-checkbox{display:flex;align-items:center;gap:var(--spacing-sm);margin-bottom:var(--spacing-sm);cursor:pointer;transition:all .2s ease}.mode-checkbox:hover{opacity:.9}.mode-checkbox input[type=checkbox]{width:20px;height:20px;accent-color:var(--color-accent)}.mode-description{font-size:.875rem;color:var(--color-text-secondary);line-height:1.6;margin:0;padding-left:28px;font-style:italic}.group-checkboxes{display:flex;flex-direction:column;gap:var(--spacing-xs);padding-left:var(--spacing-lg);margin-top:var(--spacing-xs);border-left:2px solid var(--color-border-light)}.group-checkbox{background:var(--color-card);border:1px solid var(--color-border);border-radius:var(--radius-sm);padding:var(--spacing-xs) var(--spacing-sm);transition:all .2s ease}.group-checkbox:hover{background:var(--color-bg-alt);border-color:var(--color-primary-light)}.group-checkbox input[type=checkbox]{width:16px;height:16px;accent-color:var(--color-primary)}.group-checkbox .checkbox-text{font-size:.875rem;color:var(--color-text-secondary)}.group-disabled{cursor:not-allowed!important;background:#f5f5f5!important}.group-disabled .checkbox-text{color:#999}.group-disabled input[type=checkbox]{cursor:not-allowed}.checkbox-label{display:flex;align-items:center;gap:var(--spacing-sm);padding:var(--spacing-sm);background:var(--color-bg-alt);border-radius:var(--radius-sm);cursor:pointer;transition:all .2s ease;border:1px solid var(--color-border)}.checkbox-label:hover{background:var(--color-border-light);border-color:var(--color-primary-light)}.checkbox-label input[type=checkbox]{width:18px;height:18px;cursor:pointer;accent-color:var(--color-primary)}.checkbox-text{font-size:.9rem;color:var(--color-text-primary);-webkit-user-select:none;user-select:none}.form-input{width:100%;padding:var(--spacing-sm) var(--spacing-md);border:1px solid var(--color-border);border-radius:var(--radius-md);font-size:1rem;font-family:Noto Sans SC,sans-serif;background:var(--color-card);color:var(--color-text-primary);transition:all .2s ease}.form-input:focus{outline:none;border-color:var(--color-primary);box-shadow:0 0 0 3px #1a4d3e1a}.button-group{display:flex;gap:var(--spacing-sm);margin-top:var(--spacing-md)}.generate-button{flex:1;padding:var(--spacing-sm) var(--spacing-lg);background:linear-gradient(135deg,var(--color-accent) 0%,var(--color-accent-hover) 100%);color:#fff;border:none;border-radius:var(--radius-md);font-size:1rem;font-weight:600;cursor:pointer;transition:all .3s ease;box-shadow:var(--shadow-sm)}.generate-button:hover:not(:disabled){transform:translateY(-2px);box-shadow:var(--shadow-md)}.generate-button:active:not(:disabled){transform:translateY(0)}.generate-button:disabled{opacity:.5;cursor:not-allowed}.reset-button{flex:1;padding:var(--spacing-sm) var(--spacing-lg);background:var(--color-bg-alt);color:var(--color-text-primary);border:1px solid var(--color-border);border-radius:var(--radius-md);font-size:1rem;font-weight:500;cursor:pointer;transition:all .2s ease}.reset-button:hover{background:var(--color-border-light);border-color:var(--color-primary-light)}.results-content{min-height:400px}.generated-words{display:flex;flex-direction:column;gap:var(--spacing-xl)}.tts-config-section{background:linear-gradient(135deg,#f8fafc,#f1f5f9);border:1px solid #e2e8f0;border-radius:16px;padding:var(--spacing-xl);margin-bottom:var(--spacing-xl);box-shadow:0 4px 6px -1px #0000001a,0 2px 4px -1px #0000000f}.tts-section-title{font-size:1.5rem;font-weight:700;color:var(--color-text-primary);margin:0 0 var(--spacing-lg) 0;padding-bottom:var(--spacing-md);border-bottom:2px solid #e2e8f0;display:flex;align-items:center;gap:var(--spacing-sm)}.tts-section-title:before{content:"";display:block;width:4px;height:24px;background:linear-gradient(135deg,var(--color-primary) 0%,var(--color-accent) 100%);border-radius:2px}.tts-config-row{display:flex;align-items:center;justify-content:space-between;margin-bottom:var(--spacing-lg);padding:var(--spacing-md);background:#fff;border-radius:12px;border:1px solid #e2e8f0;transition:all .3s ease}.tts-config-row:hover{border-color:var(--color-primary-light);box-shadow:0 2px 8px #0000000d}.tts-config-label{font-size:1rem;font-weight:600;color:#475569;flex:1;display:flex;align-items:center}.tts-config-input-wrapper{flex:0 0 auto}.tts-small-input{width:80px!important}.tts-config-input{width:180px;padding:.6rem 1rem;border:2px solid #e2e8f0;border-radius:8px;font-size:.95rem;font-weight:600;color:#1e293b;text-align:center;background:#fff;transition:all .3s ease;cursor:pointer}.tts-config-input:focus{outline:none;border-color:var(--color-primary);box-shadow:0 0 0 3px #1a4d3e1a}.tts-config-input:hover:not(:disabled){border-color:var(--color-primary-light);transform:translateY(-1px)}.tts-config-input:disabled{background-color:#f8fafc;color:#94a3b8;cursor:not-allowed;opacity:.6;transform:none}.tts-config-row-three{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--spacing-md)}.tts-config-item{display:flex;align-items:center;gap:8px;padding:12px 14px;background:linear-gradient(135deg,#fafbfc,#f5f7fa);border-radius:10px;border:1px solid #e8ecf1;transition:all .25s ease}.tts-config-item:hover{background:linear-gradient(135deg,#fff,#f8fafb);border-color:var(--color-primary-light);box-shadow:0 2px 8px #1a4d3e14}.tts-config-small-label{font-size:.85rem;font-weight:600;color:#4a5568;white-space:nowrap;letter-spacing:.02em}.tts-config-small-input{width:56px;padding:8px 10px;border:2px solid #d1d5db;border-radius:8px;font-size:.9rem;font-weight:700;color:#1e293b;text-align:center;background:#fff;transition:all .25s ease;-moz-appearance:textfield}.tts-config-small-input::-webkit-outer-spin-button,.tts-config-small-input::-webkit-inner-spin-button{-webkit-appearance:none;margin:0}.tts-config-small-input:focus{outline:none;border-color:var(--color-primary);box-shadow:0 0 0 3px #1a4d3e1f;background:#fafcfa}.tts-config-small-input:hover:not(:disabled){border-color:var(--color-primary-light);background:#fefefe}.tts-config-small-input:disabled{background-color:#f1f5f9;color:#94a3b8;cursor:not-allowed;opacity:.6}.tts-config-unit{font-size:.8rem;font-weight:500;color:#6b7280;min-width:20px}.tts-type-tabs{display:flex;gap:var(--spacing-md);margin-bottom:var(--spacing-xl);padding:var(--spacing-sm);background:#fff;border-radius:12px;border:2px solid #e2e8f0;box-shadow:0 2px 4px #0000000d}.tts-tab{flex:1;padding:1rem 1.5rem;border:none;border-radius:10px;font-size:1.1rem;font-weight:700;cursor:pointer;transition:all .3s cubic-bezier(.4,0,.2,1);position:relative;overflow:hidden;background:linear-gradient(135deg,#f8fafc,#f1f5f9);color:#64748b;box-shadow:0 2px 4px #0000000d;text-transform:uppercase;letter-spacing:.05em}.tts-tab:before{content:"";position:absolute;top:0;left:0;right:0;bottom:0;background:currentColor;opacity:0;transition:opacity .3s ease}.tts-tab:hover:not(.active){transform:translateY(-3px);color:#475569;box-shadow:0 4px 12px #0000001a}.tts-tab.active{color:#fff!important;transform:translateY(-3px) scale(1.02);box-shadow:0 8px 20px #00000026}.tts-tab.active:before{opacity:0}.tts-tab-word.active{background:linear-gradient(135deg,#3b82f6,#1d4ed8);box-shadow:0 8px 20px #3b82f666;color:#fff!important}.tts-tab-phrase.active{background:linear-gradient(135deg,#10b981,#059669);box-shadow:0 8px 20px #10b98166;color:#fff!important}.tts-tab-sentence.active{background:linear-gradient(135deg,#f59e0b,#d97706);box-shadow:0 8px 20px #f59e0b66;color:#fff!important}.tts-tab:active:not(.active){transform:translateY(-1px);box-shadow:0 2px 8px #0000001a}.tts-type-order{margin-bottom:var(--spacing-xl)}.tts-type-order-selectors{display:flex;flex-direction:column;gap:var(--spacing-md)}.tts-type-order-item{display:flex;align-items:center;gap:var(--spacing-sm);padding:var(--spacing-md);background:#fff;border-radius:10px;border:2px solid #e2e8f0;transition:all .3s ease}.tts-type-order-item:hover{border-color:var(--color-primary-light);box-shadow:0 2px 8px #0000000d}.tts-type-order-item span:first-child{font-size:.95rem;font-weight:600;color:#64748b;min-width:60px}.tts-type-select{flex:0 0 140px;padding:.6rem 1rem;border:2px solid #e2e8f0;border-radius:8px;font-size:.95rem;font-weight:600;color:#1e293b;background:#fff;transition:all .3s ease;cursor:pointer}.tts-type-select:focus{outline:none;border-color:var(--color-primary);box-shadow:0 0 0 3px #1a4d3e1a}.tts-type-select:hover:not(:disabled){border-color:var(--color-primary-light);transform:translateY(-1px)}.tts-type-select:disabled{background-color:#f8fafc;color:#94a3b8;cursor:not-allowed;opacity:.6;transform:none}.tts-type-auto{flex:1;padding:.6rem 1rem;background:#f8fafc;border-radius:8px;font-size:.95rem;font-weight:600;color:#94a3b8;text-align:center}.tts-example{display:flex;align-items:center;gap:var(--spacing-md);padding:var(--spacing-md);margin-bottom:var(--spacing-xl);background:linear-gradient(135deg,#fef3c7,#fde68a);border:2px solid #fbbf24;border-radius:12px;box-shadow:0 2px 8px #fbbf2433}.tts-example-label{font-size:.95rem;font-weight:700;color:#92400e;white-space:nowrap}.tts-example-text{flex:1;font-size:.95rem;font-weight:600;color:#78350f;background:#fff;padding:.5rem 1rem;border-radius:8px;border:1px solid #fbbf24;word-break:break-all}.tts-controls{display:flex;gap:var(--spacing-md);margin-top:var(--spacing-lg);padding-top:var(--spacing-lg);border-top:2px solid var(--color-border)}.tts-button{display:flex;align-items:center;gap:var(--spacing-sm);flex:1;padding:var(--spacing-md) var(--spacing-lg);border:none;border-radius:var(--radius-md);font-size:1rem;font-weight:600;cursor:pointer;transition:all .3s ease;box-shadow:var(--shadow-md)}.tts-button .button-icon{width:24px;height:24px}.tts-start-button{background:linear-gradient(135deg,var(--color-accent) 0%,var(--color-accent-hover) 100%);color:#fff}.tts-start-button:hover:not(:disabled){transform:translateY(-2px);box-shadow:var(--shadow-lg)}.tts-start-button.playing{background:linear-gradient(135deg,#f59e0b,#d97706)}.tts-start-button.paused{background:linear-gradient(135deg,#10b981,#059669)}.tts-stop-button{background:linear-gradient(135deg,#ef4444,#dc2626);color:#fff}.tts-stop-button:hover:not(:disabled){transform:translateY(-2px);box-shadow:var(--shadow-lg)}.tts-button:disabled{opacity:.5;cursor:not-allowed;transform:none}.current-word-display{display:flex;align-items:center;justify-content:center;gap:var(--spacing-sm);margin-top:var(--spacing-lg);padding:var(--spacing-md);background:var(--color-card);border:2px solid var(--color-primary);border-radius:var(--radius-md)}.current-word-label{font-size:1rem;font-weight:500;color:var(--color-text-secondary)}.current-word-text{font-size:1.5rem;font-weight:700;color:var(--color-primary)}.tts-progress{margin-top:var(--spacing-md)}.progress-bar{width:100%;height:8px;background:var(--color-border);border-radius:var(--radius-sm);overflow:hidden;margin-bottom:var(--spacing-sm)}.progress-fill{height:100%;background:linear-gradient(90deg,var(--color-primary) 0%,var(--color-accent) 100%);transition:width .3s ease}.progress-text{text-align:center;font-size:.9rem;font-weight:500;color:var(--color-text-secondary)}.words-display-container{display:flex;flex-direction:column;gap:var(--spacing-lg)}.word-section{background:var(--color-card);border-radius:var(--radius-lg);padding:var(--spacing-lg);box-shadow:var(--shadow-sm);border:2px solid var(--color-border);transition:all .3s ease}.word-section:hover{box-shadow:var(--shadow-md)}.section-title{font-family:Playfair Display,serif;font-size:1.5rem;font-weight:700;margin-bottom:var(--spacing-md);color:var(--color-text-primary);display:flex;align-items:center;gap:var(--spacing-sm)}.section-title:before{content:"";display:block;width:4px;height:24px;background:currentColor;border-radius:2px}.words-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:var(--spacing-sm)}.word-tag{display:flex;flex-direction:column;align-items:center;padding:var(--spacing-md);background:var(--color-card);border-radius:var(--radius-md);box-shadow:var(--shadow-sm);transition:all .3s ease;border:2px solid var(--color-border);position:relative;overflow:hidden;cursor:pointer}.word-tag:hover{transform:translateY(-2px);box-shadow:var(--shadow-md);border-color:var(--color-primary-light)}.word-en{font-size:1.1rem;font-weight:600;color:var(--color-text-primary);text-align:center;line-height:1.4;margin-bottom:var(--spacing-xs);font-family:JetBrains Mono,monospace}.word-cn{font-size:.875rem;font-weight:400;color:var(--color-text-secondary);text-align:center;line-height:1.3;margin-bottom:var(--spacing-xs)}.word-unit{font-size:.75rem;color:var(--color-text-muted);text-align:center;font-weight:500;opacity:.8}.sentences-list{display:flex;flex-direction:column;gap:var(--spacing-sm)}.sentence-item{display:flex;flex-direction:column;background:var(--color-card);padding:var(--spacing-md);border-radius:var(--radius-md);box-shadow:var(--shadow-sm);transition:all .2s ease;border:1px solid var(--color-border);cursor:pointer}.sentence-item:hover{box-shadow:var(--shadow-md);border-color:var(--color-primary-light)}.sentence-item .word-en{font-size:1rem;line-height:1.6;color:var(--color-text-primary);font-weight:500;word-wrap:break-word;overflow-wrap:break-word;margin-bottom:var(--spacing-xs)}.sentence-item .word-cn{font-size:.875rem;line-height:1.6;color:var(--color-text-secondary);word-wrap:break-word;overflow-wrap:break-word;margin-top:var(--spacing-xs)}.sentence-item .word-unit{font-size:.75rem;color:var(--color-text-muted);font-weight:500;opacity:.8;margin-top:var(--spacing-xs)}@keyframes fadeInUp{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.word-tag{animation:fadeInUp .3s ease-out}.word-tag:nth-child(1){animation-delay:.05s}.word-tag:nth-child(2){animation-delay:.1s}.word-tag:nth-child(3){animation-delay:.15s}.word-tag:nth-child(4){animation-delay:.2s}.word-tag:nth-child(5){animation-delay:.25s}@media (max-width: 1024px){.main{grid-template-columns:1fr}.sidebar{position:static}.title{font-size:1.75rem}.header-content{flex-direction:row}}@media (max-width: 768px){.header{padding:var(--spacing-md) var(--spacing-lg)}.header-content{flex-direction:column;text-align:center}.title{font-size:1.5rem}.subtitle{font-size:.875rem}.header-qr-container{margin-top:var(--spacing-sm)}.header-qr-image{width:70px;height:70px}.header-qr-text{font-size:.7rem}.main{padding:var(--spacing-md)}.results-title{font-size:1.5rem}.unit-title{font-size:1.125rem}.words-grid{grid-template-columns:repeat(auto-fill,minmax(140px,1fr));gap:var(--spacing-xs)}.word-text{font-size:1.125rem}.word-unit{font-size:.7rem}.section-title{font-size:1.25rem}.tts-controls{flex-direction:column}.tts-config-row{flex-direction:column;align-items:flex-start;gap:var(--spacing-xs)}.tts-config-row-three{grid-template-columns:1fr;gap:var(--spacing-sm)}.tts-config-item{padding:10px 12px}}@media (max-width: 480px){.results-meta{flex-direction:column;gap:var(--spacing-sm)}.unit-header{flex-direction:column;align-items:flex-start;gap:var(--spacing-xs)}}