:root{--seqq-ease-liquid: cubic-bezier(.16,1,.3,1);--seqq-motion-fast: .16s;--seqq-motion-state: .24s;--seqq-motion-surface: .32s;--primary: #4a9e4e;--primary-dark: #2e7d32;--secondary: #66bb6a;--accent: #4caf50;--light: #f1f8e9;--dark: #2e7d32;--success: #689F38;--warning: #F57C00;--gray: #5c6c75;--border-radius: 16px;--box-shadow: 0 10px 25px rgba(0, 0, 0, .08), 0 5px 10px rgba(0, 0, 0, .05);--transition: color var(--seqq-motion-fast) ease, background-color var(--seqq-motion-state) var(--seqq-ease-liquid), border-color var(--seqq-motion-fast) ease, box-shadow var(--seqq-motion-state) var(--seqq-ease-liquid), opacity var(--seqq-motion-fast) ease, transform var(--seqq-motion-state) var(--seqq-ease-liquid);--sidebar-width: 257px}.grade-3{--primary: #ff9800;--primary-dark: #f57c00;--secondary: #ffb74d;--accent: #ffa726;--light: #fff3e0;--dark: #e65100}.grade-4{--primary: #2e7d32;--primary-dark: #1b5e20;--secondary: #4caf50;--accent: #388e3c;--light: #e8f5e9;--dark: #1b5e20}.grade-5{--primary: #f44336;--primary-dark: #d32f2f;--secondary: #ef5350;--accent: #e53935;--light: #ffebee;--dark: #b71c1c}.grade-6{--primary: #2196f3;--primary-dark: #1976d2;--secondary: #42a5f5;--accent: #1e88e5;--light: #e3f2fd;--dark: #0d47a1}.old-edition{--primary: #8B0000;--primary-dark: #6B0000;--secondary: #A52A2A;--accent: #B22222;--light: #FFF5F5;--dark: #4B0000}*{margin:0;padding:0;box-sizing:border-box;font-family:Segoe UI,PingFang SC,Microsoft YaHei,SF Pro Display,sans-serif}body{background:#dbeaf3;background-image:none;min-height:100vh;padding:25px;color:var(--dark);line-height:1.6}.container{max-width:1200px;margin:0 auto}header{position:relative;text-align:center;padding:20px;margin-bottom:24px;color:var(--seqq-ink,#203442);border:1px solid var(--seqq-panel-edge,#ffffff60);border-radius:24px;background:linear-gradient(145deg,#ffffff14,#ffffff03);box-shadow:inset 0 1px #fff5,0 10px 32px #1224310d;backdrop-filter:blur(7px) 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i{color:var(--accent);background:#ff98001a;width:42px;height:42px;border-radius:50%;display:flex;align-items:center;justify-content:center;line-height:0;font-size:1.2em}h2 i:before{line-height:1;display:block;transform:translateY(.5px)}.home-layout{display:flex;gap:20px;margin-top:25px}.edition-column{flex:1;display:flex;flex-direction:column}.edition-header{display:flex;align-items:center;gap:10px;padding:15px 20px;background:#00000008;border-radius:12px;margin-bottom:10px}.edition-header i{font-size:1.8rem;color:var(--primary-dark);line-height:1}.edition-header h3{font-size:1.5rem;color:var(--primary-dark)}.grades-container{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}.grade-card{background:#f7fafb;background-image:none;border-radius:var(--border-radius);padding:25px 20px;text-align:center;cursor:pointer;transition:var(--transition);box-shadow:0 4px 15px #0000000f;position:relative;overflow:hidden;border:1px solid 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rgba(92,108,117,.18);color:#2d3748c7;font-size:.78rem;font-weight:700;cursor:pointer;transition:color var(--seqq-motion-fast) ease,background-color var(--seqq-motion-state) var(--seqq-ease-liquid),border-color var(--seqq-motion-fast) ease,box-shadow var(--seqq-motion-state) var(--seqq-ease-liquid),transform var(--seqq-motion-state) var(--seqq-ease-liquid);box-shadow:0 4px 10px #0000000a}.group-sort-chip input{position:absolute;opacity:0;pointer-events:none}.group-sort-chip:has(input:checked){background:linear-gradient(135deg,#fffffffa,#f2f8eef5);border-color:#4c8c3e42;color:var(--primary-dark);box-shadow:0 8px 18px #172a381a}.home-return-toast{position:fixed;right:112px;top:50%;transform:translateY(-50%) translate(8px);padding:10px 14px;border-radius:14px;background:#1e1e20e0;color:#fff;font-size:.82rem;font-weight:700;letter-spacing:.02em;box-shadow:0 14px 36px #00000038;opacity:0;pointer-events:none;transition:opacity .18s ease,transform .18s ease;white-space:nowrap;z-index:120}.home-return-toast.show{opacity:1;transform:translateY(-50%) translate(0)}.print-optimize-toast{position:fixed;left:50%;top:50%;width:min(320px,calc(100vw - 48px));transform:translate(-50%,-50%) scale(.98);padding:22px 24px 20px;border-radius:16px;background:#fffffff5;color:#1d1d1f;box-shadow:0 20px 54px #0f172a38;opacity:0;pointer-events:none;transition:opacity .18s ease,transform .18s ease;z-index:2200;text-align:center}.print-optimize-toast.show{opacity:1;transform:translate(-50%,-50%) scale(1)}.print-optimize-toast-title{font-size:1rem;font-weight:850;line-height:1.35;margin-bottom:14px}.print-optimize-progress-track{height:8px;border-radius:999px;background:#4a9e4e24;overflow:hidden}.print-optimize-progress-bar{width:0%;height:100%;border-radius:inherit;background:#4a9e4e;transition:width .22s ease}.print-optimize-progress-text{margin-top:9px;color:#667085;font-size:.78rem;font-weight:750}@media(prefers-reduced-motion:reduce){.print-optimize-toast,.print-optimize-progress-bar{transition:none}}.worksheet-container{display:none;margin-top:40px;position:relative}.a4-sheet{width:210mm;min-height:297mm;background:#fff;margin:0 auto 30px;padding:20mm 20mm 6mm;position:relative;box-shadow:0 8px 30px #0000001a;border:1px solid rgba(0,0,0,.05);color:#333}.title-container{margin-top:5mm!important}.a4-sheet.four-lines-mode{padding:10mm 10mm 6mm!important}.a4-sheet.four-lines-mode:not(:first-child){padding-top:12mm!important}.a4-sheet.four-lines-mode:not(:first-child) .worksheet-header-top{margin-bottom:2mm!important}.a4-sheet:not(.four-lines-mode){padding:15mm 10mm 6mm!important}.a4-sheet:not(.four-lines-mode):not(:first-child){padding-top:12mm!important}.a4-sheet.answer-sheet .answer-text{color:#a63a24!important;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Microsoft YaHei,PingFang SC,Noto Sans SC,sans-serif!important;font-weight:800!important;font-size:.8em!important;line-height:.86!important;letter-spacing:-.18px!important;display:inline-block!important;white-space:normal!important;word-break:break-word!important;overflow-wrap:anywhere!important;vertical-align:baseline!important}.worksheet-header{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:10px;padding-bottom:2mm;border-bottom:3px solid #333;min-height:60px;gap:10mm;position:relative}.two-line-title{display:flex;flex-direction:column;justify-content:center;text-align:left;flex:1;min-width:0;height:100%}.two-line-title .title-line-1{font-size:1.7rem;font-weight:700;color:#333;line-height:1.2;margin-bottom:2px}.two-line-title .title-line-2{font-weight:700;color:#333;line-height:1.2;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.single-line-title{font-size:1.7rem;font-weight:700;color:#333;line-height:1.2;text-align:left;flex:1;min-width:0}.two-line-title.qr-0 .title-line-2{font-size:1.5rem}.two-line-title.qr-1 .title-line-2{font-size:1.4rem}.two-line-title.qr-2 .title-line-2{font-size:1.3rem}.two-line-title.qr-3 .title-line-2,.two-line-title.qr-4 .title-line-2{font-size:1.2rem}.worksheet-title.single-line{font-size:1.7rem;line-height:1.2;align-items:center}.worksheet-title.two-lines{font-size:1.4rem;line-height:1.2;flex-direction:column;justify-content:center;padding-top:5px}.worksheet-title.small-font{font-size:1.2rem}.worksheet-footer{position:absolute;bottom:3.2mm!important;left:10mm;right:10mm;display:flex;justify-content:space-between;align-items:center;font-size:.8rem;color:#333;padding:3px 0;border-top:1px solid #e0e0e0;min-height:4mm!important;height:auto!important;overflow:visible;z-index:2}.footer-left{flex:1;min-width:0;white-space:nowrap;overflow:visible;text-overflow:clip;padding-right:6mm}.footer-right{flex-shrink:0}.a4-sheet.four-lines-mode .worksheet-footer{display:none}.four-lines-page-number{position:absolute;bottom:3mm;right:15mm;font-size:.9rem;color:#333}.qr-container{display:flex;flex-direction:row;flex-wrap:nowrap;align-items:flex-start;justify-content:flex-end;gap:2mm;flex-shrink:0;max-width:60%;margin-left:auto}.qr-group{display:flex;flex-direction:column;align-items:center;flex-shrink:0;position:relative}.qr-label{font-size:.8rem;margin-top:5px;color:#666;text-align:center}.qr-expiry{display:none!important;font-size:.7rem;margin-top:2px!important;color:#999;text-align:center;padding:0!important;margin-bottom:0!important}.qr-word-count{display:none}.qr-code{width:80px!important;height:80px!important;background:#fff;padding:4px!important;border:1px solid #eee;border-radius:6px!important;margin-bottom:0!important}.qr-code img{width:100%;height:100%;display:block}.no-qr-code{width:80px;height:80px;background:#f5f5f5;display:flex;align-items:center;justify-content:center;border:1px solid #ddd;border-radius:6px;font-size:.8rem;color:#999;text-align:center;padding:5px}.student-info{display:flex;justify-content:space-between;margin-bottom:15px;padding:10px 0;font-size:1.1rem;border-bottom:1px dashed #e0e0e0;color:#333}.student-info div{display:flex;align-items:center}.student-info .underline{border-bottom:1px solid #d0d0d0;min-width:100px;display:inline-block;margin-left:10px;margin-right:10px;min-height:1.5em}.student-info .name-underline{text-align:center;font-weight:600}.chinese-to-english-four-columns{display:grid;grid-template-columns:repeat(4,1fr);gap:5px 5px}.chinese-to-english-four-columns 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0;min-height:1.2em;color:#333}.test-item .index{margin-right:12px;font-weight:450!important;color:#333;min-width:30px}.test-item .word{margin-right:12px;min-width:140px;font-weight:450}.test-item .underline{flex-grow:1;border-bottom:1px solid #d0d0d0;min-height:1.2em;margin-left:5px}.unit-title{font-weight:700;color:#333;padding:2px 0;border-bottom:2px dashed #e0e0e0;margin-bottom:10px;grid-column:1 / -1;display:flex;align-items:center;justify-content:space-between;cursor:pointer}.unit-title.unselected{background-color:#f5f5f5;color:#999;border-bottom:2px dashed #ccc}.unit-title-mode-label{font-size:.9rem;color:var(--primary);background:linear-gradient(135deg,rgba(var(--primary-rgb),.1),rgba(var(--primary-dark-rgb),.1));padding:2px 8px;border-radius:12px;border:1px solid rgba(var(--primary-rgb),.3);font-weight:500;margin-left:10px}.unit-title-mode-label.eng-to-ch{color:#2e7d32;background:linear-gradient(135deg,#2e7d321a,#1b5e201a);border-color:#2e7d324d}.unit-title-mode-label.ch-to-eng{color:#ff9800;background:linear-gradient(135deg,#ff98001a,#f57c001a);border-color:#ff98004d}.modal{display:none;position:fixed;top:0;left:0;width:100%;height:100%;background:#0009;z-index:1000;align-items:center;justify-content:center;backdrop-filter:blur(3px)}.modal-content{background:#fff;border-radius:var(--border-radius);box-shadow:0 30px 60px #0003;width:90%;max-width:500px;max-height:80vh;overflow-y:auto;padding:30px;position:relative}.modal-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:25px}.modal-title{font-size:1.6rem;color:var(--primary-dark)}.close-modal{background:none;border:none;font-size:1.8rem;color:var(--gray);cursor:pointer;transition:var(--transition);width:36px;height:36px;display:flex;align-items:center;justify-content:center;border-radius:50%;position:relative}.close-modal:hover{background-color:#ff980026;color:var(--accent);transform:rotate(90deg)}.close-modal:before,.close-modal:after{content:"";position:absolute;width:24px;height:2px;background-color:currentColor;border-radius:1px}.close-modal:before{transform:rotate(45deg)}.close-modal:after{transform:rotate(-45deg)}.unit-select-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:15px;margin:20px 0}.unit-select-item{display:flex;align-items:center;padding:12px 15px;background:#f1f8e9;border-radius:10px;transition:var(--transition);border:1px solid rgba(92,108,117,.1)}.unit-select-item:hover{background:#dcedc8;border-color:#4a9e4e33}.unit-select-item input{margin-right:10px;accent-color:var(--primary)}.modal-actions{display:flex;justify-content:space-between;gap:15px;margin-top:25px}.custom-unit-buttons{display:flex;gap:10px}.custom-unit-buttons button{padding:8px 12px;font-size:.9rem}footer{text-align:center;padding:18px 24px;margin-top:24px;color:var(--seqq-muted,#61727d);font-size:.85rem;border:1px solid var(--seqq-panel-edge,#ffffff38);border-radius:22px;background:linear-gradient(145deg,#ffffff14,#ffffff02);box-shadow:inset 0 1px #ffffff35;backdrop-filter:blur(7px) saturate(114%);-webkit-backdrop-filter:blur(7px) saturate(114%)}.worksheet-header-top{position:absolute;top:5mm;left:10mm;right:10mm;padding:2px 0;margin-bottom:0;color:#666;font-size:.85rem;border-bottom:none}.worksheet-header-top.second-line{top:12mm;font-size:.9rem;font-weight:500;color:#444;text-align:left}.title-with-buttons{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px;position:relative}.title-with-buttons h2{margin-bottom:0;flex:1;margin-right:40px}.selection-buttons-title{display:flex;gap:10px;position:absolute;right:0;transform:translate(-200px)}.selection-buttons-title button{padding:8px 16px;font-size:.9rem;background:var(--secondary);color:#fff;border:none;border-radius:6px;cursor:pointer;transition:var(--transition);box-shadow:none}.selection-buttons-title button:hover{background:var(--primary-dark);transform:translateY(-2px);box-shadow:none}@media print{@page{size:A4;margin:0!important}html body.v7-app-active[data-v7-page=worksheet],html,body{margin:0!important;padding:0!important;background:#fff!important;-webkit-print-color-adjust:exact!important;print-color-adjust:exact!important;overflow:visible!important}html body.v7-app-active dialog::backdrop,html body.v7-app-active [popover]::backdrop{display:none!important;background:transparent!important;backdrop-filter:none!important;-webkit-backdrop-filter:none!important}html body.v7-app-active[data-v7-page=worksheet]:not([data-seqq-print-document])>:not(.container):not(#seqq-native-print-root),html body.v7-app-active[data-v7-page=worksheet]:not([data-seqq-print-document])>.container>:not(#worksheet-container),html body.v7-app-active[data-v7-page] :is(.no-print,#actions-floating,.left-float-buttons,.control-sidebar),header,footer,.no-print,.actions-floating,.control-sidebar,.left-float-buttons,#search-modal,#download-modal,#answer-download-modal,#combined-download-modal,#generating-modal,#unit-modal{display:none!important}html body.v7-app-active[data-v7-page=worksheet]>.container,.container{max-width:none!important;width:auto!important;margin:0!important;padding:0!important;min-height:0!important;transform:none!important;opacity:1!important}html body.v7-app-active[data-v7-page=worksheet] #worksheet-container,.worksheet-container{display:block!important;margin:0!important;padding:0!important;opacity:1!important;transform:none!important}.a4-sheet{width:210mm!important;min-height:297mm!important;height:297mm!important;margin:0 auto!important;box-shadow:none!important;border:none!important;background:#fff!important;position:relative!important;page-break-after:always!important;page-break-inside:avoid!important;overflow:hidden!important;opacity:1!important;transform:none!important;translate:none!important}html body.v7-app-active[data-v7-page=worksheet] #worksheet-container .a4-sheet{opacity:1!important;transform:none!important;translate:none!important}.a4-sheet:last-child{page-break-after:auto!important}.worksheet-header-top{display:block!important;-webkit-print-color-adjust:exact!important;print-color-adjust:exact!important}.worksheet-header{display:flex!important;-webkit-print-color-adjust:exact!important;print-color-adjust:exact!important}.worksheet-footer{bottom:3.2mm!important;left:10mm!important;right:10mm!important;display:flex!important;-webkit-print-color-adjust:exact!important;print-color-adjust:exact!important}.a4-sheet.four-lines-mode .worksheet-footer{display:none!important}.student-info,.unit-title,.test-item,.word-test,.chinese-to-english-four-columns,.qr-container{page-break-inside:avoid!important}.word-test{display:grid!important;grid-template-columns:repeat(2,1fr)!important;row-gap:calc(2px - .1mm)!important;column-gap:30px!important}.chinese-to-english-four-columns{display:grid!important;grid-template-columns:repeat(4,1fr)!important}*{box-shadow:none!important;text-shadow:none!important}}@media(max-width:1024px){.home-layout{flex-direction:column}.grades-container,.units-container{grid-template-columns:repeat(2,1fr)}.word-list{grid-template-columns:repeat(3,1fr)}.mode-radio-group{flex-direction:column;gap:5px}.title-with-buttons{flex-direction:column;align-items:flex-start;gap:15px}.selection-buttons-title{position:static;transform:none;align-self:flex-start}.title-with-buttons h2{margin-right:0}}@media(max-width:768px){.grades-container,.units-container{grid-template-columns:1fr}.word-list{grid-template-columns:repeat(2,1fr)}.word-test{grid-template-columns:1fr}.a4-sheet{padding:25mm;transform:scale(.95);transform-origin:top center}.controls{flex-direction:column}.worksheet-title{max-width:60%}.qr-container{max-width:40%;flex-direction:column}.floating-controls{width:90%;left:5%;transform:none}.random-controls{width:100%;right:10px}.writing-controls{flex-direction:column}.writing-controls .control-group{min-width:100%}.unit-title-with-mode{flex-direction:column;align-items:flex-start;gap:10px}.mode-toggle-row{flex-direction:column;align-items:flex-start;gap:5px}.advanced-toggle-buttons{width:100%}}.button-group{display:flex;justify-content:center;gap:15px;margin:30px 0;flex-wrap:wrap}#back-to-units,#back-to-grades{background:#757575;border-color:#757575;color:#fff}#back-to-units:hover,#back-to-grades:hover{background:#616161;border-color:#616161}#generating-modal{display:none;position:fixed;top:0;left:0;width:100%;height:100%;background:#0009;z-index:2000;align-items:center;justify-content:center}.generating-content{background:#fff;border-radius:16px;padding:40px;text-align:center;max-width:400px}.spinner{width:3.4rem;height:3.4rem;margin:0 auto 20px;display:flex;align-items:center;justify-content:center}.spinner-icon{width:100%;height:100%;object-fit:contain;animation:spin 2.2s linear infinite;transform-origin:center center;display:block}#generating-modal.qr-progress-mode{background:transparent;z-index:2200}#generating-modal.qr-progress-mode .generating-content{width:min(360px,calc(100vw - 48px));max-width:none;padding:22px 24px 20px;border-radius:16px;background:#fffffff5;color:#1d1d1f;box-shadow:0 18px 42px 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#progress-text{margin-top:9px!important;color:#667085!important;font-size:.78rem!important;font-weight:750}.qr-generation-error-icon{display:none;width:40px;height:40px;margin:0;border-radius:12px;align-items:center;justify-content:center;color:#d92d20;background:#fff1f0;font-size:31px;font-weight:900;line-height:1}.qr-generation-actions{display:none;justify-content:stretch;gap:9px;margin-top:18px;clear:both}.qr-generation-actions button{border:0;border-radius:12px;padding:10px 14px;font-weight:850;flex:1 1 0;cursor:pointer;transition:transform .16s ease,filter .16s ease}.qr-generation-actions button:hover{transform:translateY(-1px);filter:brightness(.98)}.qr-generation-actions button:active{transform:translateY(0) scale(.98)}.qr-generation-retry{background:#1f7a3a;color:#fff}.qr-generation-remove{background:#f2f4f7;color:#475467}#generating-modal.qr-error-mode .qr-generation-error-icon,#generating-modal.qr-error-mode .qr-generation-actions,#generating-modal.qr-slow-mode 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.qr-generation-error-icon{float:left;margin-right:12px;margin-bottom:8px}#generating-modal.qr-error-mode #generating-message{display:block!important;margin:8px 0 0 52px;color:#667085;font-size:.82rem;line-height:1.45}@media(prefers-reduced-motion:reduce){#generating-modal.qr-progress-mode #progress-bar,.qr-generation-actions button{transition:none!important}}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.title-70{width:70%}.title-50{width:50%}.title-30{width:30%}.title-hidden{display:none}.qr-container.multiple-codes .qr-group{flex:0 0 calc(25% - 5px);margin-bottom:10px}.qr-container.multiple-codes .qr-code{width:80px;height:80px}.qr-container.multiple-codes .qr-label{font-size:.7rem}.search-container{margin:20px 0;position:relative}.search-input{width:100%;padding:12px 45px 12px 15px;border:2px solid var(--primary);border-radius:30px;font-size:1rem;transition:var(--transition)}.search-input:focus{box-shadow:0 0 0 3px #172a3833;outline:none}.search-button{position:absolute;right:6px;top:50%;transform:translateY(-50%);background:#f7f2e8;color:#111;border:1px solid rgba(0,0,0,.08);padding:10px 14px;border-radius:999px;cursor:pointer;display:inline-flex;align-items:center;justify-content:center;gap:10px;box-shadow:0 6px 18px #0000001a;transition:transform .15s ease,box-shadow .15s ease,filter .15s ease,background-color .15s ease}.search-button:hover{background:#efe6d8;transform:translateY(-50%) scale(1.03);box-shadow:0 10px 22px #00000024}.search-button:active{background:#e7dbc9;transform:translateY(-50%) scale(.99);box-shadow:0 6px 18px #0000001a}.search-button:focus-visible{outline:none;box-shadow:0 0 0 4px #00000014,0 10px 22px #00000024}.search-button .ai-glyph{width:18px;height:18px;display:block}@keyframes appleIntelligenceGradient{0%{background-position:100% 0%;filter:hue-rotate(0deg)}25%{background-position:75% 25%;filter:hue-rotate(45deg)}50%{background-position:50% 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i{font-size:1.5rem}#search-modal{display:none;position:fixed;top:0;left:0;width:100%;height:100%;background:#0009;z-index:1000;align-items:center;justify-content:center;backdrop-filter:blur(3px)}.search-modal-content{background:#fff;border-radius:var(--border-radius);box-shadow:0 30px 60px #0003;width:90%;max-width:600px;height:min(86vh,760px);max-height:min(86vh,760px);overflow:hidden;padding:30px;position:relative;display:flex;flex-direction:column;animation:modalPop .28s cubic-bezier(.2,.9,.2,1) both}.search-modal-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:25px}.search-modal-title{display:flex;align-items:center;gap:14px;font-size:1.6rem;color:var(--primary-dark);line-height:1.2}.search-modal-title .ai-icon-box{width:46px;height:46px;border-radius:14px;background:#0000000f;border:1px solid rgba(0,0,0,.06);display:inline-flex;align-items:center;justify-content:center;flex:0 0 auto}.search-modal-title .ai-icon-box .ai-glyph{width:22px;height:22px;display:block}#download-modal,#answer-download-modal,#combined-download-modal{display:none;position:fixed;top:0;left:0;width:100%;height:100%;background:#0009;z-index:1000;align-items:center;justify-content:center;backdrop-filter:blur(3px)}.download-modal-content{background:var(--eugene-lg-glass-color,rgba(235,245,250,.9));border-radius:28px;box-shadow:var(--eugene-lg-shadow-modal);width:min(480px,calc(100vw - 32px));max-width:480px;max-height:calc(100dvh - 32px);overflow-y:auto;padding:26px;position:relative;box-sizing:border-box}.download-modal-header{display:flex;justify-content:flex-start;align-items:center;gap:14px;margin-bottom:26px}.download-modal-title{font-size:clamp(19px,4.5vw,23px);font-weight:740;line-height:1.35;letter-spacing:-.025em;color:var(--eugene-lg-ink);margin:0;padding:0;border:0;background:none}.download-dialog-eyebrow{margin:0 0 4px;font-size:11px;letter-spacing:.09em;color:var(--eugene-lg-muted);font-weight:650}.download-dialog-icon{display:grid;place-items:center;flex:0 0 46px;width:46px;height:46px;border-radius:16px;color:var(--eugene-lg-ink);background:linear-gradient(135deg,#ffffff57,#87b3cd1a);box-shadow:inset 0 1px 0 var(--eugene-lg-edge-light);font-size:19px}.download-options{margin:0}.download-options label{display:block;margin-bottom:9px;color:var(--eugene-lg-ink);font-size:13px;font-weight:600}.download-options input{width:100%;box-sizing:border-box;min-height:48px;padding:12px 14px;border:1px solid var(--eugene-lg-edge-dark);border-radius:14px;background:color-mix(in srgb,var(--eugene-lg-glass-color) 50%,transparent);color:var(--eugene-lg-ink);font-size:16px;font-weight:500;box-shadow:inset 0 1px 0 var(--eugene-lg-edge-light-soft)}.download-options input:focus-visible{outline:2px solid var(--eugene-lg-focus);outline-offset:3px}.download-field-hint{margin:8px 0 0;font-size:12px;line-height:1.65;color:var(--eugene-lg-muted)}.download-location{display:flex;gap:12px;align-items:flex-start;margin-top:23px;padding:18px 0 0;border-top:1px solid var(--eugene-lg-edge-dark-soft);background:none;box-shadow:none}.download-location>i{margin-top:3px;font-size:16px;color:var(--eugene-lg-muted)}.download-location-title{margin:0;font-size:13px;font-weight:650;color:var(--eugene-lg-ink)}.download-location .download-field-hint{margin-top:3px}.download-actions{display:flex;justify-content:flex-end;gap:10px;margin-top:26px}.download-actions button{min-height:44px;min-width:88px;font-size:14px;font-weight:650;padding:0 20px}@media(max-width:390px){.download-modal-content{padding:20px}.download-modal-header{margin-bottom:22px}.download-actions{margin-top:22px}.download-actions button{flex:1;min-width:0}}#search-modal .modal-actions,#download-modal .close-modal,#answer-download-modal .close-modal{display:none!important}#search-modal .search-modal-header .close-modal{display:flex!important}.chinese-to-english-four-columns .test-item{margin-bottom:calc(4px - .1mm)}.four-lines-container{margin:1.33px 0!important}.english-word-long{font-size:.85em!important;letter-spacing:-.5px}.chinese-word-long{font-size:.9em!important;line-height:1.2}.chinese-word-very-long{font-size:.8em!important;line-height:1.1}.chinese-word-extremely-long{font-size:.7em!important;line-height:1}.qr-expiry-label{display:none!important;font-size:.7rem;color:#666;margin-bottom:1mm;text-align:right;width:100%;padding-right:0}.qr-expiry-top-right{position:absolute;top:-18px;right:0;font-size:.7rem;color:#666;text-align:right;white-space:nowrap}.qr-word-range{font-size:.7rem;margin-top:3px;color:#666;text-align:center}.qr-container.with-label{flex-direction:column;align-items:flex-end;gap:2mm}.a4-sheet.second-page{padding-top:12mm!important}.a4-sheet.second-page .worksheet-header,.a4-sheet.second-page .student-info{display:none!important}.a4-sheet.second-page .word-test,.a4-sheet.second-page .chinese-to-english-four-columns{margin-top:0!important}.first-page-gap{height:5mm;width:100%;clear:both}.unit-list-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:25px;padding-bottom:15px;border-bottom:2px solid rgba(76,175,80,.2)}.unit-list-header h2{margin-bottom:0;padding-bottom:0;border-bottom:none;flex:1}.combine-units-btn{background:linear-gradient(90deg,var(--primary) 0%,var(--primary-dark) 100%);color:#fff;border:none;padding:12px 20px;border-radius:30px;cursor:pointer;font-size:1rem;font-weight:600;transition:var(--transition);display:inline-flex;align-items:center;justify-content:center;gap:8px;box-shadow:0 6px 15px #00000026;min-width:180px;white-space:nowrap}.combine-units-btn:hover{background:linear-gradient(90deg,var(--primary-dark) 0%,var(--primary) 100%);transform:translateY(-3px);box-shadow:0 10px 20px #0003}.combine-units-btn i{font-size:1.2rem}@media(max-width:768px){.unit-list-header{flex-direction:column;align-items:flex-start;gap:15px}.combine-units-btn{align-self:flex-end}.left-float-buttons{left:15px;bottom:2cm}}.control-sidebar .button-outline#back-to-units,.unit-list-section .button-outline#back-to-grades{display:none}.action-btn.back{display:none!important}.button-group .button-outline#back-to-units,.button-group .button-outline#back-to-grades{display:none}.a4-sheet{page-break-inside:avoid!important;break-inside:avoid!important}.a4-sheet:not(.four-lines-mode){padding-bottom:6mm!important}.a4-sheet.preview-mode .worksheet-footer{bottom:3.2mm!important}#worksheet-container .a4-sheet.slip-a4-sheet,#worksheet-container .a4-sheet.card-a4-sheet{width:210mm!important;min-height:297mm!important;height:297mm!important;margin:0 auto 30px!important;padding:0!important;position:relative!important;overflow:hidden!important;background:#fff!important;color:#202124!important;box-sizing:border-box!important}#worksheet-container .a4-sheet.slip-a4-sheet{display:flex!important;flex-direction:column!important}.slip-a4-sheet:after{content:"";position:absolute;z-index:6;left:9mm;right:9mm;top:50%;border-top:.55mm dashed #747a83;pointer-events:none}.slip-a4-sheet .slip-half{width:100%;height:148.5mm;min-height:148.5mm;padding:7mm 9mm;display:flex;flex-direction:column;position:relative;box-sizing:border-box;background:#fff;overflow:hidden}.slip-a4-sheet .slip-half:first-child{padding-bottom:8mm}.slip-a4-sheet .slip-half+.slip-half{padding-top:8mm}#worksheet-container .a4-sheet.card-a4-sheet{display:grid!important;grid-template-columns:repeat(2,105mm)!important;grid-template-rows:repeat(2,148.5mm)!important}.card-a4-sheet:before,.card-a4-sheet:after{content:"";position:absolute;z-index:6;pointer-events:none}.card-a4-sheet:before{top:7mm;bottom:7mm;left:50%;border-left:.55mm dashed #747a83}.card-a4-sheet:after{left:7mm;right:7mm;top:50%;border-top:.55mm dashed #747a83}.card-a4-sheet .card-quarter{width:105mm;height:148.5mm;min-width:105mm;min-height:148.5mm;padding:6.5mm;display:flex;flex-direction:column;position:relative;box-sizing:border-box;background:#fff;overflow:hidden}.card-a4-sheet .card-quarter:nth-child(odd){padding-right:8mm}.card-a4-sheet .card-quarter:nth-child(2n){padding-left:8mm}.card-a4-sheet .card-quarter:nth-child(-n+2){padding-bottom:8mm}.card-a4-sheet .card-quarter:nth-child(n+3){padding-top:8mm}.card-a4-sheet[data-compact-parts="1"]:before,.card-a4-sheet[data-compact-parts="2"]:before{bottom:50%}.card-a4-sheet[data-compact-parts="1"]:after{right:50%}.compact-header-top{flex:0 0 auto;padding:0 0 1.2mm;border-bottom:.22mm solid #c7cbd1;color:#60666f;font-size:6.8pt;line-height:1;letter-spacing:0;white-space:nowrap}.compact-header-top em{font-family:Georgia,Times New Roman,serif;font-size:6.5pt}.compact-title-row{flex:0 0 auto;min-height:27mm;padding:1.8mm 0 2mm;display:grid;grid-template-columns:minmax(0,1fr) 17mm 23mm;grid-template-rows:16mm 9.5mm;column-gap:2mm;row-gap:1.4mm;align-items:stretch;border-bottom:.52mm solid #282c31}.compact-title-row.no-qr{grid-template-columns:minmax(0,1fr) 0 23mm}.compact-title-block{grid-column:1;grid-row:1;min-width:0;padding-top:.5mm}.compact-title-main{color:#202327;font-size:18pt;line-height:1.06;font-weight:820;letter-spacing:0;white-space:nowrap}.compact-title-sub{margin-top:1.2mm;max-width:72mm;color:#686e77;font-size:8pt;line-height:1.1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.compact-meta-cluster{display:contents}.compact-info-panel{grid-column:1 / 4;grid-row:2;display:grid;border:.26mm solid #aeb4bc;border-radius:2mm;overflow:hidden;background:#f7f8fa}.compact-info-panel.has-writing-time{grid-template-columns:1.5fr 1.2fr .8fr}.compact-info-panel.no-writing-time{grid-template-columns:1.5fr 1.2fr}.compact-info-field{min-width:0;min-height:8.6mm;padding:0 1.8mm;display:flex;align-items:center;justify-content:flex-start;gap:1.2mm;color:#555b63;font-size:7.8pt;font-weight:600;line-height:1;border-left:.2mm solid #d6d9dd}.compact-info-field:first-child{border-left:0}.compact-info-field b{min-width:0;min-height:0;flex:1 1 auto;display:flex;align-items:center;border:0!important;border-bottom:0!important;text-decoration:none!important;color:#25292e;font-size:8pt;font-weight:700;line-height:1.1;overflow:hidden;white-space:nowrap}.compact-accuracy-box{grid-column:3;grid-row:1;min-height:15mm;padding:1.2mm 1mm;border:.26mm solid #aeb4bc;border-radius:2mm;display:flex;flex-direction:column;align-items:stretch;justify-content:space-between;gap:1.4mm;background:#f6f7f8;color:#202327}.compact-accuracy-box>span{align-self:flex-start;font-size:7.2pt;font-weight:800}.compact-accuracy-box strong{width:100%;display:flex;align-items:end;justify-content:center;gap:.7mm;line-height:1}.compact-accuracy-box strong i{display:block;flex:1;min-width:6mm;height:3mm;border-bottom:.23mm solid #747a82}.compact-accuracy-box strong small{font-size:8pt;font-style:normal;font-weight:800}.compact-qr-container{grid-column:2;grid-row:1;width:17mm!important;min-width:17mm!important;max-width:17mm!important;height:17mm!important;margin:0!important;display:flex!important;align-items:center!important;justify-content:center!important;overflow:hidden}.compact-qr-container>div,.compact-qr-container .qr-group,.compact-qr-container .qr-code{width:17mm!important;height:17mm!important;margin:0!important;padding:0!important}.compact-qr-container canvas,.compact-qr-container img{width:16mm!important;height:16mm!important;max-width:16mm!important;max-height:16mm!important;object-fit:contain!important}.compact-qr-container .qr-range-label,.compact-qr-container .qr-label,.compact-qr-container .qr-expiry,.compact-qr-container .qr-word-count{display:none!important}.compact-word-grid{flex:1 1 auto;min-height:0;padding-top:3mm;display:grid;align-content:stretch}.slip-half .compact-word-grid{grid-template-columns:repeat(2,minmax(0,1fr));grid-template-rows:repeat(10,minmax(0,1fr));column-gap:8mm;row-gap:.5mm}.slip-half .compact-word-grid.layout-horizontal{grid-auto-flow:row}.slip-half .compact-word-grid.layout-vertical{grid-auto-flow:column}.card-quarter .compact-word-grid{grid-template-columns:minmax(0,1fr);grid-template-rows:repeat(10,minmax(0,1fr));grid-auto-flow:row;row-gap:.25mm;padding-top:2.3mm}.compact-word-item.test-item{min-width:0!important;min-height:0!important;margin:0!important;padding:0!important;display:grid!important;grid-template-columns:7mm minmax(25mm,auto) 1fr!important;align-items:center!important;gap:1.8mm!important;color:#282c31!important;font-size:1.08rem!important;line-height:1.2!important;background:transparent!important;border:0!important;box-shadow:none!important;overflow:visible!important}.compact-word-item .index{color:#777d86!important;font-size:1rem!important;line-height:1.2!important;font-weight:400!important;font-variant-numeric:tabular-nums}.compact-word-item .word{max-width:48mm;color:#282c31!important;font-size:1.08rem!important;font-weight:400!important;line-height:1.2!important;white-space:nowrap!important;overflow:visible!important}.compact-word-item.is-long .word{font-size:.92rem!important}.compact-word-item .underline{min-width:10mm!important;width:auto!important;height:4mm!important;margin:0!important;border:0!important;border-bottom:.23mm solid #6b7179!important}.card-quarter .compact-header-top{font-size:5.8pt;padding-bottom:.9mm}.card-quarter .compact-header-top em{font-size:5.5pt}.card-quarter .compact-title-row{min-height:27mm;grid-template-columns:minmax(0,1fr) 16.5mm 16.5mm;grid-template-rows:17mm 8.6mm;column-gap:1.4mm;row-gap:1mm;padding:1.4mm 0 1.6mm}.card-quarter .compact-title-row.no-qr{grid-template-columns:minmax(0,1fr) 0 16.5mm}.card-quarter .compact-title-main{font-size:14pt}.card-quarter .compact-title-sub{max-width:50mm;font-size:6.6pt}.card-quarter .compact-info-field{padding:0 1.1mm;font-size:6.8pt}.card-quarter .compact-info-field b{font-size:7.2pt}.card-quarter .compact-accuracy-box{width:16.5mm;height:16.5mm;min-height:16.5mm;padding:.9mm .7mm;align-items:stretch;justify-content:space-between;gap:.9mm;box-sizing:border-box}.card-quarter .compact-accuracy-box>span{align-self:flex-start;font-size:6.2pt;line-height:1}.card-quarter .compact-accuracy-box strong small{font-size:6.8pt}.card-quarter .compact-qr-container,.card-quarter .compact-qr-container>div,.card-quarter .compact-qr-container .qr-group,.card-quarter .compact-qr-container .qr-code{width:16.5mm!important;min-width:16.5mm!important;max-width:16.5mm!important;height:16.5mm!important}.card-quarter .compact-qr-container canvas,.card-quarter .compact-qr-container img{width:15.5mm!important;height:15.5mm!important;max-width:15.5mm!important;max-height:15.5mm!important}.card-quarter .compact-word-item.test-item{grid-template-columns:5.5mm minmax(20mm,auto) 1fr!important;gap:1.2mm!important;font-size:.94rem!important}.card-quarter .compact-word-item .index{font-size:.86rem!important}.card-quarter .compact-word-item .word{max-width:38mm;font-size:.94rem!important}.card-quarter .compact-word-item.is-long .word{font-size:.79rem!important}@media print{#worksheet-container .a4-sheet.slip-a4-sheet,#worksheet-container .a4-sheet.card-a4-sheet{width:210mm!important;min-height:297mm!important;height:297mm!important;margin:0!important;padding:0!important;page-break-after:always!important;break-after:page!important}#worksheet-container .a4-sheet.slip-a4-sheet{display:flex!important}#worksheet-container .a4-sheet.card-a4-sheet{display:grid!important}.slip-a4-sheet .slip-half{height:148.5mm!important;min-height:148.5mm!important;break-inside:avoid!important;page-break-inside:avoid!important}.card-a4-sheet .card-quarter{width:105mm!important;height:148.5mm!important;min-height:148.5mm!important;break-inside:avoid!important;page-break-inside:avoid!important}.slip-a4-sheet .worksheet-footer,.slip-a4-sheet .four-lines-page-number,.card-a4-sheet .worksheet-footer,.card-a4-sheet .four-lines-page-number{display:none!important}}@keyframes modalPop{0%{opacity:0;transform:translateY(6px) scale(.98)}to{opacity:1;transform:translateY(0) scale(1)}}#search-modal .search-results{max-height:52vh;overflow:auto;padding-right:6px}#unit-modal .close-modal,#search-modal .close-modal{background:#0000000a;border:1px solid rgba(0,0,0,.08);width:42px;height:42px;border-radius:999px;box-shadow:0 10px 22px #0000001a;transition:transform .15s ease,box-shadow .15s ease,background .15s ease}#unit-modal .close-modal:hover,#search-modal .close-modal:hover{background:#0000000f;transform:scale(1.06);box-shadow:0 14px 30px #00000024}#unit-modal .close-modal:active,#search-modal .close-modal:active{transform:scale(.98);box-shadow:0 10px 22px #0000001a}#unit-modal .close-modal:before,#unit-modal .close-modal:after,#search-modal .close-modal:before,#search-modal .close-modal:after{width:18px;height:2px;border-radius:2px}#unit-modal .modal-content{max-width:1000px;padding:34px 42px;overflow:visible;animation:modalPop .28s cubic-bezier(.2,.9,.2,1) both}#unit-modal .unit-select-item{background:transparent;border:1px solid rgba(0,0,0,.1);border-radius:18px;padding:18px 20px;gap:14px;box-shadow:0 8px 22px #0000000f}#unit-modal .unit-select-item:hover{background:#00000005;border-color:#00000029;transform:translateY(-1px)}#unit-modal .unit-select-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:22px;margin-top:22px}#unit-modal #cancel-modal{display:none!important}#unit-modal #confirm-units{min-width:240px;padding:12px 22px;border-radius:14px;background:var(--primary);box-shadow:0 10px 26px #00000029}#unit-modal #confirm-units:hover{background:var(--primary-dark);box-shadow:0 14px 34px #0003}#unit-modal .modal-actions{align-items:center;justify-content:space-between}#unit-modal .custom-unit-buttons button.button-outline{border-width:2px;border-radius:12px}.container:before{display:none!important;content:none!important}#unit-modal.modal{background:#0a0a0c61!important;backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px)}#unit-modal .modal-content{width:min(92vw,1120px)!important;max-height:min(86vh,820px);overflow:hidden;background:#ffffffc7!important;border:1px solid rgba(255,255,255,.55)!important;border-radius:28px!important;box-shadow:0 24px 70px #00000059,0 2px #ffffff59 inset;padding:34px 40px 28px!important;transform:translateY(6px) scale(.99);animation:unitModalPop .26s cubic-bezier(.2,.9,.2,1) forwards}@keyframes unitModalPop{to{transform:translateY(0) scale(1)}}#unit-modal .modal-header{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:10px}#unit-modal .modal-title{font-size:30px!important;font-weight:800!important;letter-spacing:.2px;color:var(--primary-dark)!important}#unit-modal .modal-title i{margin-right:10px;opacity:.92}#unit-modal p{color:#141e16b8!important;font-size:16px!important;margin:10px 0 18px!important}#unit-modal .close-modal{width:44px!important;height:44px!important;border-radius:999px!important;border:1px solid rgba(0,0,0,.1)!important;background:#ffffff8c!important;box-shadow:0 10px 30px #0000002e;transition:transform .18s ease,background .18s ease,box-shadow .18s ease}#unit-modal .close-modal:hover{transform:translateY(-1px) scale(1.02);background:#ffffffb8!important;box-shadow:0 16px 40px #00000038}#unit-modal .close-modal:before,#unit-modal .close-modal:after{background:#1414149e!important;height:2.5px!important;width:20px!important}#unit-modal .unit-select-grid{display:grid;grid-template-columns:repeat(2,minmax(260px,1fr))!important;gap:18px!important;margin:0 0 22px!important;max-height:min(46vh,420px);overflow:auto;padding-right:6px}#unit-modal .unit-select-grid::-webkit-scrollbar{width:10px}#unit-modal .unit-select-grid::-webkit-scrollbar-thumb{background:#00000029;border-radius:999px;border:3px solid rgba(255,255,255,.65)}#unit-modal .unit-select-grid::-webkit-scrollbar-track{background:transparent}#unit-modal .unit-select-item{background:transparent!important;border:1px solid rgba(0,0,0,.1)!important;border-radius:16px!important;padding:16px!important;min-height:64px;display:flex;align-items:center;gap:14px;box-shadow:none!important;transition:transform .18s ease,border-color .18s ease,background .18s ease}#unit-modal .unit-select-item:hover{background:#4a9e4e0f!important;border-color:#4a9e4e47!important;transform:translateY(-1px)}#unit-modal .unit-select-item input[type=checkbox]{appearance:none;-webkit-appearance:none;width:22px;height:22px;border-radius:7px;border:1.6px solid rgba(0,0,0,.2);background:#ffffff8c;box-shadow:0 1px #fffc inset;display:inline-block;margin:0 6px 0 2px!important;position:relative;transition:transform .12s ease,border-color .16s ease,background .16s ease,box-shadow .16s ease}#unit-modal .unit-select-item input[type=checkbox]:hover{transform:scale(1.02)}#unit-modal .unit-select-item input[type=checkbox]:checked{background:var(--primary)!important;border-color:#0000001a;box-shadow:0 10px 20px #172a3840}#unit-modal .unit-select-item input[type=checkbox]:checked:after{content:"";position:absolute;inset:0;background-repeat:no-repeat;background-position:center;background-size:14px 14px;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'%3E%3Cpath fill='white' d='M7.7 13.9 3.6 9.8l1.4-1.4 2.7 2.7 7-7 1.4 1.4z'/%3E%3C/svg%3E")}#unit-modal .unit-select-item{font-size:18px!important;font-weight:650;color:#14371aeb!important}#unit-modal .modal-actions{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-top:18px!important}#cancel-modal{display:none!important}#unit-modal .button-outline{background:#ffffff8c!important;border:1px solid rgba(0,0,0,.1)!important;color:var(--primary-dark)!important;border-radius:12px!important;padding:12px 16px!important;font-weight:700;transition:transform .16s ease,box-shadow .16s ease,background .16s ease,border-color .16s ease}#unit-modal .button-outline:hover{transform:translateY(-1px);background:#ffffffb3!important;border-color:#4a9e4e38!important;box-shadow:0 16px 40px #0000001f}#confirm-units{min-width:320px!important;padding:14px 22px!important;border-radius:16px!important;font-size:18px!important;font-weight:800!important;background:var(--primary)!important;box-shadow:0 18px 40px #172a3847;transition:transform .16s ease,box-shadow .16s ease,filter .16s ease}#confirm-units:hover{transform:translateY(-1px);box-shadow:0 24px 60px #172a3857;filter:brightness(1.02)}@media(max-width:760px){#unit-modal .modal-content{padding:24px 18px 18px!important}#unit-modal .unit-select-grid{grid-template-columns:1fr!important}#confirm-units{min-width:46vw!important}}#unit-list.section:before{display:none!important;content:none!important}#unit-modal .unit-select-item{background:transparent!important}#unit-modal .unit-select-grid{gap:10px!important}#unit-modal .unit-select-item{padding:12px 14px!important;min-height:54px!important}#unit-modal .unit-select-item{white-space:nowrap!important;overflow:hidden}#unit-modal .unit-select-title{display:inline-block;flex:1 1 auto;min-width:0;white-space:nowrap;overflow:visible;line-height:1.2}#unit-modal .unit-select-item.is-selected{background:color-mix(in srgb,var(--primary) 7%,transparent)!important;border-color:color-mix(in srgb,var(--primary) 26%,rgba(0,0,0,.14))!important;box-shadow:0 8px 22px #00000014}#unit-modal .unit-select-item:hover{background:color-mix(in srgb,var(--primary) 5%,transparent)!important;border-color:color-mix(in srgb,var(--primary) 22%,rgba(0,0,0,.14))!important}#unit-modal .unit-select-item input[type=checkbox]:checked{background:color-mix(in srgb,var(--primary) 62%,white 38%)!important;border-color:color-mix(in srgb,var(--primary) 28%,rgba(0,0,0,.12))!important;box-shadow:0 10px 22px #172a381f}#unit-modal .unit-select-item.is-selected input[type=checkbox]{box-shadow:0 8px 18px #172a381f}#word-selection.section:before{display:none!important;width:0!important}#word-selection{background:transparent!important;box-shadow:none!important;border:0!important}#word-selection .word-selection-container,#word-selection .word-list-container{background:transparent!important;border:0!important;box-shadow:none!important}#word-selection .word-list{display:grid!important;grid-template-columns:repeat(6,minmax(0,1fr))!important;gap:10px!important;margin:0 0 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.word-count-float{width:74px;height:34px;display:inline-flex;align-items:center;justify-content:center;border-radius:999px;background:#ffffffeb;border:1px solid rgba(60,60,67,.16);color:#1d1d1fe0;font-family:-apple-system,BlinkMacSystemFont,SF Pro Text,Inter,PingFang SC,HarmonyOS Sans SC,Microsoft YaHei,system-ui,sans-serif;font-size:12.5px;font-weight:800;letter-spacing:.2px;box-shadow:0 10px 22px #0000001a;cursor:pointer;user-select:none;transition:transform .16s ease,box-shadow .16s ease,border-color .16s ease,background .16s ease}.left-float-buttons .word-count-float:hover{transform:translateY(-1px);border-color:color-mix(in srgb,var(--primary) 30%,rgba(60,60,67,.16));box-shadow:0 16px 34px #00000024,0 12px 26px #172a381f}.left-float-buttons .word-count-float:active{transform:translateY(0) scale(.99)}#word-selection .word-text .eng{font-weight:800!important}.left-float-buttons .word-count-float#word-count-pill{display:none}#word-selection .title-with-buttons h2{display:flex!important;align-items:center!important;gap:10px!important}#word-selection .unit-title-wrap{display:flex;align-items:center;gap:10px}#word-selection .unit-title-wrap .unit-pill{display:inline-flex;align-items:center;justify-content:center;height:30px;padding:0 12px;border-radius:999px;background:var(--primary);color:#fff;font-family:-apple-system,BlinkMacSystemFont,SF Pro Text,Inter,PingFang SC,HarmonyOS Sans SC,Microsoft YaHei,system-ui,sans-serif;font-size:12.5px;font-weight:800;letter-spacing:.2px;box-shadow:0 10px 22px #172a381f}#word-selection .unit-title-wrap .unit-rest{font-family:-apple-system,BlinkMacSystemFont,SF Pro Display,SF Pro Text,Inter,PingFang SC,HarmonyOS Sans SC,Microsoft YaHei,system-ui,sans-serif;font-size:18px;font-weight:800;color:#1d1d1f;letter-spacing:.2px}#word-selection .unit-title-wrap .unit-pill{height:36px!important;padding:0 16px!important;font-size:14px!important;font-weight:900!important}#word-selection .unit-title-wrap 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.word-item.unit-header-item:active{transform:translateY(0) scale(.998)!important}#word-selection .unit-header-inner{display:flex;align-items:center;gap:10px;min-width:0}#word-selection .unit-pill-sm{display:inline-flex;align-items:center;justify-content:center;height:30px;padding:0 12px;border-radius:999px;background:color-mix(in srgb,var(--primary) 92%,#0b0b0c);color:#fff;font-family:-apple-system,BlinkMacSystemFont,SF Pro Text,Inter,PingFang SC,HarmonyOS Sans SC,Microsoft YaHei,system-ui,sans-serif;font-size:13px;font-weight:800;letter-spacing:.2px;box-shadow:0 10px 20px #172a381f;flex:0 0 auto}#word-selection .unit-sep{color:#1d1d1f73;font-weight:800;flex:0 0 auto}#word-selection .unit-name{font-family:-apple-system,BlinkMacSystemFont,SF Pro Display,SF Pro Text,Inter,PingFang SC,HarmonyOS Sans SC,Microsoft YaHei,system-ui,sans-serif;font-size:16px;font-weight:800;color:#1d1d1f;letter-spacing:.2px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;min-width:0}#word-selection .word-item.unit-header-item.unselected{opacity:.72}#word-selection .word-item.unit-header-item{border-color:color-mix(in srgb,var(--primary) 28%,rgba(255,255,255,.52))!important;background:color-mix(in srgb,var(--primary) 10%,rgba(255,255,255,.74))!important}#word-selection .word-item.unit-header-item .unit-pill-sm{background:color-mix(in srgb,var(--primary) 92%,#0b0b0c)!important}#word-selection .word-item.unit-header-item.unselected{background:#ffffffa8!important;border-color:#3c3c432e!important;opacity:1!important}#word-selection .word-item.unit-header-item.unselected .unit-pill-sm{background:#3c3c435c!important;box-shadow:none!important}#word-selection .word-item.unit-header-item.unselected .unit-name,#word-selection .word-item.unit-header-item.unselected .unit-sep{color:#1d1d1f73!important}#word-selection .word-item.unit-header-item.unselected:hover{background:#ffffffbd!important}#word-selection .word-item.unit-header-item{background:color-mix(in srgb,var(--primary) 16%,rgba(255,255,255,.74))!important;border-color:color-mix(in srgb,var(--primary) 34%,rgba(255,255,255,.52))!important}#word-selection .word-item.unit-header-item.unselected{background:#ffffffa8!important;border-color:#3c3c432e!important}#word-selection .word-item:not(.unit-header-item):has(input[type=checkbox]:not(:checked)){background:#ffffff9e!important;border-color:#3c3c432e!important;box-shadow:0 10px 26px #0000000f,inset 0 1px #ffffffb8!important}#word-selection .word-item:not(.unit-header-item):has(input[type=checkbox]:not(:checked)) .word-text .eng{color:#1d1d1fb3!important}#word-selection .word-item:not(.unit-header-item):has(input[type=checkbox]:not(:checked)) .word-text .chn{color:#1d1d1f8c!important}#word-selection .word-item:not(.unit-header-item):has(input[type=checkbox]:checked){background:color-mix(in srgb,var(--primary) 12%,rgba(255,255,255,.74))!important;border-color:color-mix(in srgb,var(--primary) 30%,rgba(255,255,255,.52))!important}#word-selection .word-item:not(.unit-header-item):has(input[type=checkbox]:checked) .word-text .eng{color:#1d1d1feb!important}#word-selection .word-item:not(.unit-header-item):has(input[type=checkbox]:checked) .word-text .chn{color:#1d1d1fb3!important}#word-selection .title-with-buttons h2{margin-right:0!important}.left-float-buttons .quick-select-panel{display:none;width:220px;padding:10px 8px;border-radius:18px;background:#ffffffeb;border:1px solid rgba(60,60,67,.16);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);box-shadow:0 10px 22px #0000001f}.left-float-buttons .quick-select-panel .qs-row{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin:8px 0}.left-float-buttons .quick-select-panel .qs-btn{width:100%;height:34px;border-radius:12px;border:1px solid rgba(60,60,67,.18);background:#fffffff5;color:#1d1d1fe0;cursor:pointer;display:inline-flex;align-items:center;justify-content:center;gap:6px;font-size:12px;font-weight:600;line-height:1;transition:transform .06s ease,filter .12s 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.ai-label{font-weight:1000;font-size:18px;letter-spacing:1.5px}.grade-7{--primary:#9dc7ad;--primary-dark:#7aa08a;--secondary:#c6e0cf;--accent:#8cb99a;--light:#edf7f0;--dark:#456050}.grade-8{--primary:#d66a57;--primary-dark:#b85241;--secondary:#e59b8f;--accent:#cc5f4b;--light:#fff0ed;--dark:#7f2f22}#word-selection .section-header-item{padding:14px 18px!important;margin:10px 0 6px!important;border-radius:18px!important;background:linear-gradient(180deg,#ffffffe0,#f9fafcfa)!important;border:1px solid rgba(0,0,0,.05)!important;box-shadow:0 8px 18px #0f172a0f,inset 0 1px #fffffff5!important}#word-selection .section-header-item .unit-pill-sm{font-size:12px;letter-spacing:.04em}#word-selection .section-header-item .unit-name{font-size:13px;opacity:.72}