.structured-exercise{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);width:100%;height:100%;min-height:0;background:var(--panel, #fff);font-size:var(--exam-font-size, 15px)}.structured-material,.structured-questions{padding:28px 30px;overflow:auto}.structured-material{border-right:1px solid #e4e6e8;line-height:1.85}.structured-material h1{font-size:25px;margin:12px 0 22px;line-height:1.35}.structured-kind{font-size:11px;letter-spacing:.12em;color:#787c83}.structured-material p{margin:0 0 20px}.structured-material p>b{margin-right:8px}.structured-instructions{color:#636973;font-size:14px}.structured-prompt{font-size:18px;line-height:1.9}.structured-material img{max-width:100%;max-height:400px;object-fit:contain}.structured-material figure{margin:20px 0}.structured-material figcaption{color:#79808b;font-size:12px}.structured-material audio{width:100%;margin:12px 0}.structured-question{padding:22px 0;border-bottom:1px solid #e6e8ea}.structured-question>label{display:flex;align-items:baseline;gap:12px;line-height:1.6}.structured-question>label b{font:600 12px ui-monospace,monospace;border:1px solid #ccd1d7;border-radius:5px;min-width:26px;text-align:center;padding:3px}.structured-question>input{display:block;border:1px solid #b7c3cf;background:#fff;border-radius:5px;padding:9px 12px;max-width:100%;width:260px;margin:16px 0 0 38px}.structured-options{display:grid;gap:10px;margin:16px 0 0 38px}.structured-options label{display:flex;gap:10px;cursor:pointer}.structured-options input{accent-color:#42668b}.structured-options b{font-size:12px;color:#5a6572}.structured-feedback{font-size:13px;margin:18px 0 0 38px;line-height:1.7}.structured-feedback p{margin:8px 0 0;color:#606976}.structured-correct .structured-feedback{color:#2f7a68}.structured-wrong .structured-feedback{color:#af6254}.structured-questions textarea{display:block;resize:vertical;min-height:350px;height:70%;width:100%;padding:18px;border:1px solid #d5dce3;border-radius:6px;font:inherit;line-height:1.8;margin:16px 0}.structured-questions small{color:#79818c}.structured-material details{margin-top:25px}.structured-material summary{cursor:pointer;font-size:14px}@media(max-width:700px){.structured-exercise{grid-template-columns:1fr;overflow:auto;display:block}.structured-material,.structured-questions{overflow:visible;padding:22px}.structured-material{border-right:0;border-bottom:1px solid #ddd}.structured-question>input{margin-left:0;width:100%}}.admin-workspace{--admin-ink: #253449;--admin-muted: #7a8592;--admin-line: #e2e7ed;--admin-blue: #416887;display:grid;grid-template-columns:184px minmax(0,1fr);height:100%;min-height:0;background:#fff;color:var(--admin-ink);font-size:13px}.admin-workspace button:focus-visible,.admin-workspace input:focus-visible,.admin-workspace select:focus-visible,.admin-workspace textarea:focus-visible{outline:2px solid #537fa8;outline-offset:2px}.admin-sidebar{background:#f4f6f8;border-right:1px solid var(--admin-line);padding:25px 14px;display:flex;flex-direction:column;gap:30px;min-width:0}.admin-brand{display:flex;gap:10px;align-items:center}.admin-brand-mark{display:grid;place-items:center;background:#3d5c75;color:#fff;width:34px;height:38px;border-radius:6px;font-size:18px}.admin-brand strong{display:block;font-size:15px}.admin-brand small{font-size:10px;color:#7e8995;margin-top:5px;display:block}.admin-sidebar nav{display:grid;gap:7px}.admin-sidebar nav button{display:flex;gap:11px;align-items:center;padding:12px 14px;border-radius:6px;color:#63717f;text-align:left}.admin-sidebar nav button.active{color:#345d7c;background:#e4ebf2;font-weight:600}.admin-sidebar-bottom{margin-top:auto;display:grid;gap:10px;word-break:break-all;color:#7a8592;font-size:11px}.admin-sidebar-bottom>button{display:flex;align-items:center;gap:5px;text-align:left;margin-top:7px;color:#456680}.admin-role{font-size:10px;border:1px solid #c9d5df;border-radius:4px;padding:3px 7px;justify-self:start;color:#526d82}.admin-main{min-width:0;min-height:0;display:flex;flex-direction:column;overflow:hidden}.admin-header{padding:26px 28px 22px;display:flex;align-items:center;justify-content:space-between;gap:18px;border-bottom:1px solid var(--admin-line);flex-shrink:0}.admin-eyebrow{font:10px ui-monospace,SFMono-Regular,monospace;letter-spacing:.1em;color:#8a95a0}.admin-header h1{font-size:24px;line-height:1.4;margin:6px 0 7px;letter-spacing:-.02em;font-weight:600}.admin-header p{margin:0;color:var(--admin-muted);font-size:12px;line-height:1.7}.admin-workspace .primary{background:#416887;color:#fff;border:1px solid #416887;border-radius:5px;padding:9px 13px;display:inline-flex;align-items:center;justify-content:center;gap:7px;font-size:12px;white-space:nowrap}.admin-workspace .outline{border:1px solid #d8e0e7;border-radius:5px;padding:8px 12px;background:#fff;color:#526476;font-size:12px;white-space:nowrap}.admin-workspace button:disabled{opacity:.45;cursor:not-allowed}.admin-workspace input,.admin-workspace textarea,.admin-workspace select{font:inherit;color:var(--admin-ink);background:#fff;border:1px solid #d7dfe6;border-radius:4px;padding:9px 10px;max-width:100%}.admin-workspace input[type=checkbox],.admin-workspace input[type=radio]{accent-color:#416887;width:auto;margin:0}.admin-workspace textarea{resize:vertical;line-height:1.65}.admin-workspace code,.admin-mono{font:10px ui-monospace,SFMono-Regular,monospace;color:#8c98a3}.admin-actions{display:flex;align-items:center;flex-wrap:wrap;justify-content:flex-end;gap:8px}.admin-save-state{font-size:10px;color:#919aa4}.admin-publish{border:1px solid #87ad9f;background:#edf5f1;color:#377e67;padding:9px 12px;font-size:12px;border-radius:5px;white-space:nowrap}.admin-filters{display:flex;gap:9px;padding:17px 28px;align-items:center}.admin-search{display:flex;gap:8px;align-items:center;border:1px solid #d7dfe6;border-radius:5px;padding:0 10px;flex:1;max-width:420px;color:#8894a0}.admin-search input{border:0;width:100%;padding-left:0}.admin-filters select{font-size:12px}.admin-table-wrap{flex:1;overflow:auto;min-height:0;padding:0 28px}.admin-table{border-collapse:collapse;width:100%;text-align:left;white-space:nowrap}.admin-table th{font-size:10px;letter-spacing:.04em;font-weight:500;color:#8c97a2;border-block:1px solid #e5e9ef;padding:12px 10px;background:#fafbfc;position:sticky;top:0;z-index:1}.admin-table td{border-bottom:1px solid #ecf0f3;padding:15px 10px;vertical-align:middle}.admin-table tr:hover td{background:#fafcfd}.admin-title-button{text-align:left;display:grid;gap:5px;min-width:150px;max-width:310px;white-space:normal}.admin-title-button strong{font-size:13px;font-weight:500;line-height:1.5}.admin-title-button span{font-size:11px;color:#929ca6}.admin-skill{display:inline-block;border-radius:4px;padding:4px 6px;background:#ebf1f7;color:#587490;font-size:10px;margin-right:8px}.admin-skill.listening{background:#f0edf7;color:#85759d}.admin-skill.writing{background:#f7eee7;color:#ac8b71}.admin-table small{font-size:10px;color:#909aa5}.admin-status{font-size:10px;padding:4px 7px;border:1px solid #e1e3e8;background:#f5f6f8;color:#87919c;border-radius:4px;white-space:nowrap}.admin-status.published{background:#edf6f1;color:#52816d;border-color:#dae9df}.admin-date{font-size:11px;color:#9aa4ad}.admin-edit-link{display:flex;align-items:center;gap:3px;color:#587996;font-size:11px}.admin-pagination{display:flex;align-items:center;justify-content:space-between;padding:14px 28px;border-top:1px solid var(--admin-line);font-size:10px;color:#8995a1;gap:10px}.admin-pagination>div{display:flex;align-items:center;gap:12px}.admin-empty{padding:60px 20px;text-align:center;color:#8a96a2;font-size:13px;line-height:1.8}.admin-error{margin:12px 20px 0;padding:11px 14px;background:#fff3f0;border:1px solid #edd8d2;color:#a35e4e;border-radius:5px;font-size:12px;display:flex;gap:10px;align-items:center;flex-shrink:0}.admin-error span{flex:1}.admin-error button{font-size:20px}.admin-document-bar{display:flex;align-items:center;gap:12px;padding:10px 25px;background:#fafbfc;border-bottom:1px solid var(--admin-line);color:#929aa4;font-size:10px;flex-shrink:0;flex-wrap:wrap}.admin-document-bar select{margin-left:auto;font-size:10px;padding:6px}.admin-hint{font-size:11px;color:#8a7d61;background:#faf7f0;padding:11px 25px;line-height:1.8;margin:0;flex-shrink:0}.admin-editor-workspace{display:grid;grid-template-columns:minmax(270px,1fr) minmax(280px,1fr);flex:1;min-height:0}.admin-editor-workspace.preview-hidden{grid-template-columns:1fr}.admin-editor{overflow:auto;min-width:0;padding:0 25px 25px}.admin-editor fieldset{border:0;padding:0;margin:0;min-width:0}.admin-form-section{padding:24px 0;border-bottom:1px solid #e5e9ee}.admin-form-section h2{font-size:14px;display:flex;gap:12px;align-items:center;margin:0 0 22px;font-weight:600}.admin-form-section h2>span{font:10px ui-monospace,monospace;color:#8a9eaf;border-bottom:2px solid #c0ceda;padding:3px 0}.admin-form-section h2>small{margin-left:auto;color:#9aa5ad;font-size:10px;font-weight:400}.admin-editor label,.admin-albums form>label{display:grid;gap:8px;margin:15px 0;color:#6e7e8e;font-size:11px}.admin-editor label>small{color:#9ca5ae;font-size:10px;line-height:1.7}.admin-editor input:not([type=checkbox]),.admin-editor textarea,.admin-editor select{width:100%;font-size:12px}.admin-field-row{display:grid;grid-template-columns:1fr 1fr;gap:13px}.admin-album-checks{font-size:11px;color:#6e7e8e;margin-top:18px}.admin-album-checks>label{display:flex;align-items:center;gap:8px;margin:10px 0;font-size:11px}.admin-paragraph{margin-bottom:18px}.admin-paragraph>div{display:flex;gap:10px;align-items:center;margin-bottom:7px}.admin-paragraph>div input{width:48px!important}.admin-paragraph button{color:#9aa3ad;font-size:10px}.admin-paragraph textarea{width:100%}.admin-add{padding:9px 12px!important;display:block;width:100%;border:1px dashed #cbd6df!important;color:#6c8599!important;font-size:11px!important;border-radius:4px;background:#fafcfd!important;text-align:center;margin-top:10px}.admin-question-card{padding:16px;border:1px solid #dee5eb;border-radius:5px;margin-bottom:16px;background:#fff}.admin-question-card>header{display:flex;gap:10px;align-items:center;padding-bottom:5px}.admin-question-card>header strong{font-size:12px;white-space:nowrap}.admin-question-card>header select{width:auto;font-size:10px;padding:5px;margin-left:auto}.admin-question-card>header>button{color:#a0aab4;display:flex}.admin-options>div{display:flex;gap:5px;margin:7px 0}.admin-options>div>input:first-child{max-width:64px}.admin-options>div>input:nth-child(2){min-width:0}.admin-options button{color:#97a4af}.admin-answer-label>input{border-color:#becfc7;background:#fcfefd}.admin-editor-footer{padding:20px 0;display:flex;gap:6px;font-size:10px;line-height:1.8;color:#94a0aa}.admin-preview{background:#f6f8fa;border-left:1px solid var(--admin-line);overflow:auto;min-width:0;position:relative}.admin-preview>header{display:flex;justify-content:space-between;align-items:center;padding:13px 18px;background:#f6f8fa;border-bottom:1px solid #e4e9ee;font-size:10px;color:#8a98a5;position:sticky;top:0;z-index:2}.admin-preview>header>span{display:flex;align-items:center;gap:7px}.admin-preview>header>label{display:flex;align-items:center;gap:6px}.admin-preview .structured-exercise{display:block;height:auto;width:calc(100% - 28px);margin:14px;border:1px solid #e5e9ee;border-radius:5px;overflow:hidden;font-size:13px}.admin-preview .structured-material,.admin-preview .structured-questions{padding:22px;overflow:visible}.admin-preview .structured-material{border-right:0;border-bottom:1px solid #e4e9ee}.admin-preview .structured-material h1{font-size:20px}.admin-preview .structured-question>input{margin-left:0;width:100%}.admin-preview .structured-options,.admin-preview .structured-feedback{margin-left:0}.admin-preview .structured-questions textarea{min-height:200px;height:200px}.admin-media-picker{border:1px solid #e1e7ed;border-radius:4px;padding:12px;margin-top:20px}.admin-media-picker summary{cursor:pointer;color:#73899b;font-size:11px}.admin-media-picker p{font-size:10px}.admin-image-row{margin:15px 0;display:grid;gap:7px}.admin-image-row button{justify-self:end;font-size:10px;color:#9e8b83}.admin-import-content{padding:25px 28px;overflow:auto;flex:1}.admin-import-steps{display:flex;gap:13px;align-items:center;color:#8494a3;font-size:11px;margin-bottom:25px;flex-wrap:wrap}.admin-import-toolbar{display:flex;align-items:center;gap:12px;margin-bottom:12px}.admin-import-toolbar small{font-size:10px;color:#99a3ae}.admin-import-content>textarea{display:block;width:100%;height:calc(100vh - 380px);min-height:220px;font:11px/1.8 ui-monospace,monospace;padding:20px;background:#fbfcfe;tab-size:2}.admin-import-report{margin:15px 0;padding:13px 15px;background:#f5f6f8;border-radius:4px;color:#7b8793;font-size:12px;line-height:1.7}.admin-import-report.success{background:#edf6f1;color:#52816d}.admin-import-content>.admin-actions{justify-content:flex-start}.admin-media-grid{padding:24px 28px;display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:18px;overflow:auto;align-content:start;flex:1}.admin-media-grid article{border:1px solid #e1e7ed;border-radius:6px;padding:12px;min-width:0;display:flex;flex-direction:column;gap:7px}.admin-media-grid article>strong{font-size:12px;font-weight:500;overflow-wrap:anywhere}.admin-media-grid article>small{color:#94a0ab;font-size:10px}.admin-media-grid code{overflow-wrap:anywhere;font-size:9px}.admin-media-visual{background:#f2f5f7;height:155px;display:flex;align-items:center;justify-content:center;flex-direction:column;color:#8fa3b4;gap:20px;margin-bottom:8px;border-radius:3px}.admin-media-visual img{width:100%;height:100%;object-fit:contain}.admin-media-visual audio{width:100%;height:32px}.admin-albums{padding:25px 28px;overflow:auto;display:grid;grid-template-columns:240px 1fr;gap:32px}.admin-albums form{border:1px solid #e2e7ec;padding:20px;border-radius:5px;align-self:start}.admin-albums h2{margin:0;font-size:15px}.admin-albums article{display:flex;align-items:center;gap:15px;border-bottom:1px solid #e7ecf0;padding:16px 0}.admin-albums article>span{color:#fff;font-size:12px;padding:12px;border-radius:6px}.admin-albums article>div{display:grid;gap:6px}.admin-albums article strong{font-size:13px;font-weight:500}.admin-albums article small{font-size:11px;color:#94a0ab}.admin-no-access{display:flex;align-items:center;justify-content:center;flex-direction:column;gap:16px;height:100%;color:#7c8c9b;padding:25px;text-align:center}.admin-no-access h1{font-size:24px;color:#435e75}.admin-no-access p{font-size:13px;line-height:1.8}@media(max-width:1050px){.admin-sidebar{padding:20px 10px}.admin-workspace{grid-template-columns:155px minmax(0,1fr)}.admin-brand{gap:6px}.admin-brand small{font-size:8px}.admin-brand strong{font-size:13px}.admin-header{padding:20px;flex-wrap:wrap}.admin-header h1{font-size:21px}.admin-header .admin-actions{justify-content:flex-start}.admin-header p{font-size:11px}.admin-editor,.admin-table-wrap{padding-inline:17px}.admin-table th:nth-child(5),.admin-table td:nth-child(5){display:none}.admin-filters{padding:14px 17px;flex-wrap:wrap}}@media(max-width:850px){.admin-workspace{grid-template-columns:132px minmax(0,1fr)}.admin-brand-mark,.admin-brand small{display:none}.admin-sidebar nav button{padding:11px 7px;gap:8px;font-size:12px}.admin-editor-workspace{grid-template-columns:1fr}.admin-preview{min-height:300px;max-height:45vh;display:none}.admin-editor-workspace:not(.preview-hidden){display:flex;flex-direction:column}.admin-editor-workspace:not(.preview-hidden) .admin-editor{flex:1}.admin-editor-workspace:not(.preview-hidden) .admin-preview{display:block;flex:1;border-top:1px solid #ddd}.admin-albums{grid-template-columns:1fr}.admin-table td{padding:12px 5px}.admin-pagination{padding-inline:15px}}@media(max-width:560px){.admin-workspace{display:flex;flex-direction:column}.admin-sidebar{padding:8px;border-right:0;border-bottom:1px solid #e1e7ed;gap:0;flex-shrink:0}.admin-brand,.admin-sidebar-bottom{display:none}.admin-sidebar nav{display:flex;gap:4px;justify-content:space-around}.admin-sidebar nav button{font-size:10px;gap:5px;padding:9px 7px}.admin-sidebar nav svg{width:14px}.admin-main{flex:1}.admin-header{padding:15px}.admin-header h1{font-size:19px}.admin-header .admin-eyebrow{font-size:8px}.admin-filters select{max-width:105px}.admin-table th:nth-child(4),.admin-table td:nth-child(4){display:none}.admin-title-button{min-width:120px;max-width:160px}.admin-title-button strong{font-size:11px}.admin-table th,.admin-table td{padding-inline:3px}.admin-skill{display:block;max-width:40px;margin-bottom:5px}.admin-document-bar{padding:10px 15px}.admin-document-bar>span:not(.admin-status){display:none}.admin-import-content,.admin-media-grid{padding:16px}.admin-search{flex-basis:100%;max-width:none}.admin-editor-workspace:not(.preview-hidden) .admin-preview{max-height:40vh}.admin-editor fieldset{padding:0}.admin-albums{padding:16px}}@media(max-width:850px){.admin-editor-workspace:not(.preview-hidden) .admin-editor{display:none}.admin-editor-workspace:not(.preview-hidden) .admin-preview{display:block;flex:1;min-height:0;max-height:none;height:100%}.admin-editor-workspace .admin-preview>.structured-exercise{min-height:calc(100% - 70px)}.admin-editor-workspace.preview-hidden .admin-editor{display:block;flex:1}}@media(max-width:560px){.admin-header .admin-eyebrow{display:none}.admin-header{gap:12px}.admin-header h1{margin:0 0 4px}.admin-header p{font-size:10px}.admin-header .admin-actions{gap:6px}.admin-actions .outline,.admin-actions .primary,.admin-actions .admin-publish{font-size:10px;padding:7px 9px}.admin-document-bar{gap:8px}.admin-document-bar code{font-size:9px;max-width:145px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.admin-document-bar select{font-size:9px;padding:5px}.admin-save-state{display:none}}.admin-import-tabs{display:flex;gap:6px;border-bottom:1px solid #e2e7ed;margin-bottom:25px}.admin-import-tabs button{padding:10px 18px;font-size:12px;color:#8694a0;border-bottom:2px solid transparent}.admin-import-tabs button.active{border-color:#416887;color:#416887;font-weight:600}.admin-excel-intro{max-width:760px;margin-bottom:25px}.admin-excel-intro h2,.admin-excel-preview h2{font-size:15px;font-weight:500;margin:0 0 12px}.admin-excel-intro p{font-size:12px;color:#81909f;line-height:1.9;margin:6px 0}.admin-excel-upload{display:flex;flex-direction:column;align-items:center;gap:13px;border:1px dashed #bccbd7;border-radius:7px;padding:35px 25px;background:#fafcfe;color:#7e96aa;margin-bottom:20px}.admin-excel-upload strong{font-size:14px;font-weight:500;word-break:break-all}.admin-excel-upload>span,.admin-excel-commit small{font-size:11px;color:#94a0ac}.admin-excel-errors,.admin-excel-preview{overflow:auto;border:1px solid #e2e7ed;border-radius:5px;margin:20px 0}.admin-excel-errors td:last-child{white-space:normal;min-width:220px;color:#a56554;line-height:1.8}.admin-excel-preview h2{margin:18px}.admin-excel-preview h2 small{font-size:11px;color:#94a0ac;margin-left:10px}.admin-excel-preview td{font-size:12px;white-space:normal}.admin-excel-preview td small{display:block;margin-top:5px;color:#94a0ac}.admin-excel-preview td:nth-child(3){min-width:180px}.admin-excel-commit{justify-content:flex-start;margin:25px 0 10px}.admin-workspace a.outline{text-decoration:none;display:inline-flex;align-items:center;justify-content:center}.admin-excel-errors .admin-table th:nth-child(4),.admin-excel-errors .admin-table td:nth-child(4){display:table-cell}@media(max-width:560px){.admin-import-toolbar{flex-wrap:wrap}.admin-excel-upload{padding:28px 15px}.admin-excel-upload strong{font-size:12px}.admin-excel-intro p{font-size:11px}.admin-excel-errors td,.admin-excel-errors th{font-size:10px}.admin-excel-errors .admin-table th:nth-child(4),.admin-excel-errors .admin-table td:nth-child(4),.admin-excel-preview .admin-table th:nth-child(4),.admin-excel-preview .admin-table td:nth-child(4){display:table-cell}}:root{font-family:system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Microsoft YaHei,sans-serif;color:#232427;font-size:14px;font-synthesis:none;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}*{box-sizing:border-box}body{margin:0}button,input,textarea,select{font:inherit}button{cursor:pointer;color:inherit;display:inline-flex;align-items:center;justify-content:center;gap:7px}button{border:0;background:none}button:disabled{opacity:.45;cursor:default}button:focus-visible,a:focus-visible{outline:2px solid var(--accent, #56a5df);outline-offset:3px}input:focus,textarea:focus,select:focus{outline:2px solid #5ba7dd;outline-offset:1px}input[type=radio],input[type=checkbox],input[type=range]{accent-color:#00a6d9}svg{flex-shrink:0}h1,h2,h3,p{margin:0}h2{font-size:16px}h3{font-size:14px}.application{--accent: #ab6745;--bg: #fff;--muted: #71727a;--subtle: #a0a1a8;--border: #e5e5e7;--soft: #f6f6f8;--surface: #fbf7f1;--theme-bottom: #f3e9d6;--theme-halo: #dba479;height:100dvh;min-height:480px;overflow:hidden;background:radial-gradient(72% 52% at 18% 108%,color-mix(in srgb,var(--theme-halo) 34%,transparent),transparent 62%),radial-gradient(58% 44% at 78% 112%,color-mix(in srgb,var(--theme-halo) 18%,transparent),transparent 68%),linear-gradient(180deg,var(--surface),var(--theme-bottom));font-size:14px}.theme-stone{--accent: #3a6ea8;--surface: #f6f6f7;--theme-bottom: #e9e9eb;--theme-halo: #bbb}.theme-sage{--accent: #3f6e4b;--surface: #f3f6ed;--theme-bottom: #e6eedb;--theme-halo: #528a62}.theme-mist{--accent: #3a6ea8;--surface: #f1f4f9;--theme-bottom: #e1eaf4;--theme-halo: #4670a8}.theme-dusk{--accent: #7d4d99;--surface: #f4f0f7;--theme-bottom: #e9deed;--theme-halo: #9866b4}.theme-rose{--accent: #b04e5e;--surface: #faf1f1;--theme-bottom: #f1d9d8;--theme-halo: #d46274}.scroll{overflow:auto;scrollbar-width:thin;scrollbar-color:#dedee0 transparent}.scroll::-webkit-scrollbar{width:6px;height:6px}.scroll::-webkit-scrollbar-thumb{border-radius:6px;background:#dedee0}.muted{color:var(--muted)}.subtle{color:var(--subtle)}.window-bar{height:36px;display:flex;align-items:center;justify-content:center;position:relative;-webkit-user-select:none;user-select:none;color:#80807d;font-size:12px;font-weight:600}.window-tools{position:absolute;left:8px;top:0;height:36px;display:flex;gap:3px;align-items:center}.window-tools button{height:28px;width:28px;border-radius:6px}.window-tools button:hover{background:#00000008}.window-tools button:first-child{margin-right:12px}.window-demo{position:absolute;right:14px;font-size:10px;font-weight:400;opacity:.6}.app-body{height:calc(100% - 36px);display:flex;gap:10px;padding:10px 10px 10px 64px;position:relative}.panel{background:#fff;border:1px solid var(--border);border-radius:12px;overflow:hidden;box-shadow:0 1px 1px #00000002}.rail{position:absolute;left:0;top:0;bottom:0;width:64px;display:flex;flex-direction:column;padding:16px 6px 14px;-webkit-user-select:none;user-select:none}.rail-nav{display:flex;flex-direction:column;gap:4px}.rail button{color:var(--accent);width:100%;position:relative;display:flex;flex-direction:column;gap:6px;font-size:10.5px;letter-spacing:.02em;padding:9px 0;border-radius:9px;min-height:53px;line-height:1}.rail button:hover{background:color-mix(in srgb,var(--accent) 10%,transparent)}.rail button.active:before{position:absolute;content:"";left:-6px;top:14px;bottom:14px;width:3px;border-radius:0 3px 3px 0;background:var(--accent)}.rail-icon{height:22px;position:relative}.rail-icon small{position:absolute;left:9px;top:-9px;white-space:nowrap;color:#fff;background:#d9a14e;border:1px solid white;font-size:9px;padding:3px 4px;border-radius:7px;box-shadow:0 1px 2px #0001}.rail-bottom{margin-top:auto;display:flex;flex-direction:column;gap:4px}.album-panel{flex:0 0 270px;display:flex;flex-direction:column;min-width:0}.album-toolbar{height:45px;flex-shrink:0;padding:10px 14px;display:flex;align-items:center;justify-content:flex-end;border-bottom:1px solid var(--border)}.outline{background:#fff;border:1px solid var(--border);border-radius:7px;padding:6px 10px;color:var(--muted);font-size:12px;line-height:1.3;font-weight:500}.outline:hover{background:#f7f7f8;border-color:#d3d3d6}.outline.enabled{background:color-mix(in srgb,var(--accent) 7%,white);color:var(--accent);border-color:color-mix(in srgb,var(--accent) 35%,white)}.primary{background:var(--accent);border:1px solid var(--accent);color:#fff;border-radius:6px;padding:7px 13px;font-size:12px;font-weight:600;line-height:1.25}.primary:hover{background:color-mix(in srgb,var(--accent) 88%,black)}.primary.compact{padding:5px 11px}.album-scroll{flex:1;min-height:0;padding:14px 20px 12px 10px}.section-caption{font-size:11px;color:var(--subtle);font-weight:600;letter-spacing:.04em}.album-scroll>.section-caption{margin:2px 4px 12px}.hot-album{display:block;text-align:left;border:1px solid #edcec5;background:#fff0eb;border-radius:9px;width:100%;padding:11px 13px 10px 18px;margin-bottom:6px;position:relative;min-height:64px;box-shadow:0 1px #00000003}.hot-album:before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:3px;border-radius:2px;background:linear-gradient(#ee8961,#ed552f)}.hot-album:hover{background:#ffe4da;box-shadow:0 2px 10px #d96c4215}.hot-album div{display:flex;align-items:center;justify-content:space-between;gap:5px}.hot-album strong{font-size:13px;white-space:nowrap;font-weight:600}.hot-album small{font-size:10px;color:#c36540;white-space:nowrap;font-weight:600}.hot-album>span{display:block;color:var(--subtle);font-size:11px;margin-top:6px}.album-scroll>.collection-label{margin-top:25px;margin-bottom:12px}.album-card{width:100%;border:1px solid var(--border);border-radius:10px;display:flex;text-align:left;align-items:center;gap:10px;padding:10px 12px;margin-bottom:6px;min-height:64px;box-shadow:0 1px 1px #00000004}.album-card:hover{border-color:color-mix(in srgb,var(--album-color) 45%,white);background:#fcfcfd}.album-card.selected{border:2px solid #6b82cd;padding:9px 11px;box-shadow:0 3px 6px #6b82cd15}.album-badge{width:32px;height:32px;border-radius:50%;flex-shrink:0;display:flex;align-items:center;justify-content:center;color:var(--album-color);font-weight:600;font-size:12px;background:color-mix(in srgb,var(--album-color) 12%,white);border:1px solid color-mix(in srgb,var(--album-color) 27%,white)}.album-card.selected .album-badge{background:#6b82cd;color:#fff;border-color:#6b82cd}.album-description{min-width:0;display:flex;flex-direction:column;gap:4px}.album-description strong{font-size:14px;font-weight:600;line-height:1.4}.album-description>span{font-size:11px;color:var(--subtle)}.album-description b{font-size:12px;font-weight:600;color:var(--muted)}.album-card.selected .album-description b{color:#6b82cd}.album-footer{flex-shrink:0;padding:8px 20px 10px 10px}.compose-button{width:100%;border:1px solid color-mix(in srgb,var(--accent) 30%,var(--border));padding:7px 8px;border-radius:9px;background:color-mix(in srgb,var(--accent) 5%,white);gap:10px}.compose-button>span{width:22px;height:22px;border-radius:6px;color:#fff;display:grid;place-items:center;background:var(--accent);box-shadow:0 2px 4px color-mix(in srgb,var(--accent) 30%,transparent)}.compose-button strong{font-size:13px}.compose-button>svg{margin-left:auto;color:var(--subtle)}.album-heading{padding:16px 14px 0;font-size:11px;color:var(--subtle);font-weight:600;letter-spacing:.04em}.main-panel{flex:1;min-width:0;position:relative}.library-view,.words-view,.stats-view{height:100%;display:flex;flex-direction:column;position:relative}.tab-bar{height:45px;border-bottom:1px solid var(--border);padding:0 14px;display:flex;justify-content:space-between;align-items:center;flex-shrink:0;gap:12px}.tabs{display:flex;height:100%;gap:21px;align-items:stretch;min-width:0;white-space:nowrap}.tabs>button{position:relative;padding:0;height:100%;color:var(--muted);font-size:13px;gap:6px;font-weight:500;border-bottom:2px solid transparent}.tabs>button.selected{color:#232427;border-bottom-color:var(--accent)}.tabs>button small{color:var(--subtle);font-size:11px}.tabs>button.selected small{color:var(--accent)}.filter-trigger{flex-shrink:0}.library-content{flex:1;padding:12px 24px 20px 14px}.source-banner{display:flex;gap:10px;border:1px solid color-mix(in srgb,var(--accent) 27%,var(--border));border-radius:9px;padding:8px 10px 8px 12px;background:color-mix(in srgb,var(--accent) 5%,white);min-height:42px}.source-icon{display:grid;place-items:center;background:color-mix(in srgb,var(--accent) 8%,white);border-radius:6px;color:var(--accent);height:23px;width:23px;flex-shrink:0}.source-banner>div{display:flex;align-items:center;gap:8px;min-width:0;flex:1;font-size:12.5px;white-space:nowrap}.source-banner strong{font-weight:600}.source-banner>div>span{color:var(--muted)}.list-heading{font-size:14px;font-weight:650;margin:28px 4px 9px;display:flex;align-items:baseline;gap:9px}.list-heading small{font-size:12px;color:var(--subtle);font-weight:400}.exercise-list{border:1px solid var(--border);border-radius:9px 9px 0 0;overflow:hidden}.exercise-row{display:flex;width:100%;text-align:left;min-height:48.5px;padding:8px 16px;gap:12px;border-bottom:1px solid var(--border);position:relative}.exercise-row:last-child{border-bottom:0}.status-dot{height:22px;width:22px;display:grid;place-items:center;border-radius:50%;background:#eeeef0;flex-shrink:0;color:var(--muted)}.status-dot i{width:5px;height:5px;background:#737985;border-radius:50%}.exercise-title{flex:1;min-width:0;display:flex;gap:4px;align-items:baseline;flex-wrap:wrap;line-height:1.4}.exercise-title strong{font-size:15px;font-weight:650}.exercise-title>span{font-size:12px;color:var(--muted)}.row-metrics{flex-shrink:0;font-size:12px;min-width:110px}.row-metrics>span{display:flex;align-items:center;justify-content:space-between;gap:7px;line-height:1.35}.row-metrics small{font-size:9px;color:var(--subtle);width:20px}.row-metrics>span:first-child small{font-weight:600;color:var(--muted)}.row-metrics b{font-size:12px;font-weight:600;min-width:45px;text-align:right}.row-metrics em{font-size:11px;font-style:normal;color:#b79a54;min-width:45px;text-align:right}.mini-bar{height:4px;width:37px;border-radius:4px;background:#eeeef0;overflow:hidden}.mini-bar b{display:block;height:100%;min-width:0;background:#37876b;border-radius:4px}.mini-bar.average b{background:#d0bf98}.row-chevron{color:var(--subtle)}.row-action{display:none;position:absolute;right:16px;top:50%;transform:translateY(-50%);font-size:11px}.exercise-row:hover,.exercise-row.selected{background:color-mix(in srgb,var(--accent) 10%,white)}.exercise-row:hover .row-metrics,.exercise-row.selected .row-metrics,.exercise-row:hover .row-chevron,.exercise-row.selected .row-chevron{visibility:hidden}.exercise-row:hover .row-action,.exercise-row.selected .row-action{display:flex}.exercise-row.completed{background:#f4faf9;border-left:2px solid #368983;padding-left:14px}.completed .status-dot{background:#32847f;color:#fff;box-shadow:0 0 0 2px #d5e9e8}.rank{width:24px;height:24px;display:grid;place-items:center;border-radius:50%;background:#ffd9ca;color:#b65e3b;font-size:12px;font-weight:600}.rank.top{background:#ec6432;color:#fff}.hot-heading{display:flex;justify-content:space-between;align-items:center;margin:20px 4px 0}.hot-heading h2{margin:8px 0 5px}.hot-heading+.list-heading{margin-top:16px}.writing-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));border:1px solid var(--border);border-radius:9px;overflow:hidden}.writing-card{display:flex;flex-direction:column;padding:0;border-right:1px solid var(--border);border-bottom:1px solid var(--border);text-align:left;position:relative;overflow:hidden;align-items:stretch;justify-content:flex-start}.writing-card:nth-child(2n){border-right:0}.chart-preview{display:block;width:100%;height:auto;max-height:280px}.writing-card>.chart-preview{height:130px;object-fit:cover;object-position:top}.writing-caption{position:relative;padding:6px 14px 15px;display:flex;justify-content:space-between;background:#fff}.writing-caption:before{content:"";position:absolute;height:30px;left:0;right:0;bottom:100%;background:linear-gradient(transparent,#fff)}.writing-caption>span:first-child{display:block;border:1px solid color-mix(in srgb,var(--accent) 25%,white);background:color-mix(in srgb,var(--accent) 11%,white);color:var(--accent);border-radius:5px;padding:2px 6px;font-size:10.5px;font-weight:600}.writing-go{display:none;align-items:center;color:var(--accent);font-size:10px}.writing-card:hover{background:#faf8f5}.writing-card:hover .writing-go{display:flex}.essay-preview{padding:22px 20px 12px;font-family:Georgia,serif;min-height:160px;line-height:1.6;font-size:13px}.essay-preview small{display:block;font:600 10px system-ui;color:#939399;margin-bottom:12px}.essay-preview p+p{margin-top:8px}.popover{background:#fff;border:1px solid #d8d8da;border-radius:10px;box-shadow:0 10px 24px #00000016,0 2px 5px #00000008;z-index:30}.filter-backdrop{position:absolute;inset:45px 0 0;z-index:19}.filter-popover{position:absolute;top:46px;right:14px;width:255px;max-height:calc(100% - 50px);overflow:auto;font-size:12px}.filter-popover section{padding:10px 8px;border-bottom:1px solid var(--border)}.filter-popover section p{padding:2px 8px 7px;color:var(--subtle);font-size:10.5px;font-weight:600;letter-spacing:.04em}.filter-popover section button{width:100%;padding:7px 9px;gap:10px;justify-content:flex-start;min-height:32px}.filter-popover section button:hover{background:#f5f5f7;border-radius:5px}.filter-popover section button>svg:first-child{color:var(--subtle)}.filter-popover section button.selected{font-weight:600}.filter-popover section button.selected>svg{color:var(--accent)}.filter-popover section button>svg:last-child:not(:first-child){margin-left:auto}.filter-popover footer{display:flex;justify-content:space-between;padding:10px 12px;background:#f7f7f9;color:var(--subtle);font-size:11px}.filter-popover footer button{padding:0;color:var(--muted)}.center-page{height:100%;display:flex;align-items:center;justify-content:center;text-align:center;padding:40px;position:relative;background:radial-gradient(ellipse 40% 42% at 50% 44%,color-mix(in srgb,var(--accent) 10%,white),#fff)}.center-page h1{font-size:26px;line-height:1.35;font-weight:700;margin-bottom:22px}.center-page p{color:var(--muted);line-height:1.9;font-size:14px}.soft-button{color:var(--accent);background:color-mix(in srgb,var(--accent) 12%,white);border-radius:8px;font-size:13px;font-weight:650;padding:8px 21px;margin-top:26px}.highlights{background:radial-gradient(ellipse 40% 42% at 50% 44%,color-mix(in srgb,var(--accent) 9%,white),#fff)}.slide-arrow{position:absolute;top:48%;color:#d8d8db}.slide-arrow.left{left:24px}.slide-arrow.right{right:24px}.slide-dots{display:flex;justify-content:center;gap:8px;margin-top:70px;margin-bottom:13px}.slide-dots button{height:8px;width:8px;border-radius:10px;background:color-mix(in srgb,var(--accent) 25%,white);padding:0}.slide-dots button.selected{width:26px;background:var(--accent);outline:3px solid color-mix(in srgb,var(--accent) 18%,white)}.highlights small{color:var(--subtle);font-size:12px}.settings-popover{position:absolute;left:66px;bottom:28px;width:220px;padding:14px 10px 7px;z-index:60}.settings-popover>.section-caption{margin:0 8px 9px;font-size:10px}.theme-swatches{display:flex;justify-content:space-between;padding:0 6px 13px;border-bottom:1px solid var(--border)}.theme-swatches button{width:26px;height:26px;border-radius:50%;border:1px solid #00000010;padding:0}.theme-swatches button.selected{outline:1.5px solid var(--accent);outline-offset:3px}.demo-account{padding:13px 8px;display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--border)}.demo-account small{display:flex;align-items:center;font-size:10px;color:var(--subtle);font-weight:600;gap:4px;margin-bottom:3px}.demo-account small i{width:5px;height:5px;background:#69a181;outline:2px solid #e0ede6;border-radius:50%}.demo-account small i.offline{background:#999;outline-color:#eee}.demo-account strong{font-size:12px}.demo-account button{color:var(--subtle);padding:0}.menu-row{display:flex;width:100%;justify-content:flex-start;gap:10px;padding:8px;font-size:12px}.menu-row svg{color:var(--muted);width:15px}.menu-row:hover{background:#f6f6f8;border-radius:5px}.modal-overlay{position:fixed;inset:0;background:#16191f55;-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px);z-index:100;display:flex;align-items:center;justify-content:center;padding:20px}.dialog{background:#fff;border:1px solid #dedee2;border-radius:12px;box-shadow:0 24px 60px #00000030;width:500px;max-width:100%;max-height:90dvh;overflow:auto;position:relative;padding:20px}.dialog h2{font-size:16px;font-weight:650;padding-right:22px;margin-bottom:8px}.dialog-close{position:absolute;right:12px;top:12px;color:#999;z-index:1}.icon-button{width:28px;height:28px;border-radius:6px;padding:4px}.icon-button:hover{background:#f0f0f2}.dialog>p.muted{font-size:12px;line-height:1.6}.dialog-actions{display:flex;align-items:center;justify-content:flex-end;gap:8px;margin:20px -20px -20px;padding:12px 18px;border-top:1px solid var(--border);background:#f7f7f9}.info-content{font-size:13px;line-height:1.8;color:#62636b;padding-top:12px}.info-content p+p{margin-top:12px}.info-content h3{margin-top:14px;color:#2b2b30}.notice-tag{display:inline-block;color:var(--accent);background:color-mix(in srgb,var(--accent) 10%,white);border-radius:5px;font-size:10px;font-weight:600;padding:3px 7px}.search-dialog{width:650px;overflow:hidden}.search-field{display:flex;gap:10px;border:1px solid #c6c7ce;border-radius:8px;padding:10px 12px;margin-top:16px;color:var(--subtle)}.search-field input{border:0;outline:0;flex:1;min-width:0;color:#232427;font-size:14px}.search-field kbd{font-size:10px;padding:3px;border:1px solid var(--border);border-radius:4px;white-space:nowrap}.chips{display:flex;gap:8px;align-items:center;margin:12px 0;flex-wrap:wrap}.chips>button,.chips>label{border:1px solid var(--border);padding:5px 12px;border-radius:6px;font-size:12px;display:flex;align-items:center;gap:6px}.chips>button.selected{border-color:color-mix(in srgb,var(--accent) 40%,white);color:var(--accent);background:color-mix(in srgb,var(--accent) 8%,white)}.chips>.subtle{font-size:11px;margin-left:auto}.search-results{max-height:390px;margin:0 -10px -10px}.search-results>button{width:100%;padding:12px 10px;border-bottom:1px solid var(--border);text-align:left;gap:12px;justify-content:flex-start}.search-results>button:hover{background:#f7f7f9}.search-results>button>svg{margin-left:auto;color:var(--subtle)}.search-results>button>span:nth-child(2){display:flex;flex-direction:column;gap:3px}.search-results strong{font-size:13px;font-weight:600}.search-results small{font-size:11px;color:var(--muted)}.search-type{border-radius:8px;background:color-mix(in srgb,var(--accent) 10%,white);color:var(--accent);font-size:12px;padding:9px}.field-label{display:block;font-size:12px;font-weight:600;margin:20px 0 8px}.segmented{display:flex;border-radius:7px;background:#f1f1f3;padding:3px;gap:3px}.segmented button{flex:1;font-size:12px;color:var(--muted);padding:6px 12px;border-radius:5px}.segmented button.selected{background:#fff;box-shadow:0 1px 4px #0001;color:var(--accent);font-weight:600}.compose-dialog select{width:100%;border:1px solid var(--border);border-radius:6px;padding:8px 10px;background:#fff;color:#333}.compose-summary{background:#f6f6f8;border-radius:8px;padding:13px;display:flex;gap:12px;color:var(--accent);align-items:center;margin-top:18px}.compose-summary strong{font-size:12px;color:#333}.compose-summary small{display:block;font-size:11px;color:var(--muted);margin-top:4px}.empty{padding:60px 20px;text-align:center;color:var(--subtle);display:flex;flex-direction:column;align-items:center;gap:12px;font-size:12px}.empty h3{color:var(--muted);font-size:14px}.toast-message{position:fixed;bottom:28px;left:50%;transform:translate(-50%);background:#2d3036f5;color:#fff;border:1px solid #ffffff20;border-radius:9px;box-shadow:0 6px 24px #0002;padding:11px 18px;font-size:12px;display:flex;align-items:center;gap:9px;z-index:500;white-space:nowrap}.toast-enter-active,.toast-leave-active{transition:opacity .15s,translate .15s}.toast-enter-from,.toast-leave-to{opacity:0;translate:0 5px}.vocab-hero{padding:13px 14px 14px;border-bottom:1px solid var(--border);min-height:120px;flex-shrink:0}.vocab-info{width:225px;background:#f8f8fa;border:1px solid var(--border);border-radius:12px}.vocab-card{display:flex;width:100%;padding:12px 11px;border:2px solid #b6513c;border-radius:12px;gap:10px;text-align:left;background:#fff;box-shadow:0 8px 15px #ad4e3010}.vocab-icon{font-size:18px;display:grid;place-items:center;width:32px;height:32px;border-radius:9px;background:#b64e39;color:#fff;flex-shrink:0}.vocab-card>span:last-child{min-width:0}.vocab-card strong{display:flex;align-items:center;gap:7px;white-space:nowrap;font-size:15px;font-weight:650}.vocab-card strong small{font-size:9px;font-weight:700;letter-spacing:.08em;color:#b6513c;background:#faebe6;border:1px solid #e6bbb2;border-radius:4px;padding:1px 5px}.vocab-card>span>span{display:block;margin-top:3px;color:var(--muted);font-size:11px;white-space:nowrap}.vocab-card b{font-size:13px;font-weight:650;color:#232427}.vocab-help{width:100%;padding:6px 3px 8px;color:var(--muted);font-size:12px}.vocab-help b{color:var(--accent);font-weight:600}.vocab-categories{height:45px;padding:0 14px;display:flex;align-items:center;gap:10px;justify-content:space-between;border-bottom:1px solid var(--border);flex-shrink:0}.vocab-categories>.tabs{gap:17px;overflow:auto;scrollbar-width:none}.vocab-categories .tabs>button{font-size:12px;gap:5px}.vocab-categories .tabs>button small{font-size:10px}.vocab-categories .tabs>button:first-child{order:-3}.tab-separator{order:-2;border-left:1px solid #ddd;height:13px;margin-top:16px;margin-right:-3px}.vocab-actions{display:flex;gap:8px;flex-shrink:0}.vocab-actions .outline{white-space:nowrap}.vocab-letter-bar{height:45px;border-bottom:1px solid var(--border);display:flex;justify-content:space-between;padding:0 20px;flex-shrink:0;gap:12px}.vocab-letter-bar>div{display:flex;gap:16px}.vocab-letter-bar button{color:var(--muted);font-size:11px}.vocab-letter-bar>div>button{font-size:13px;font-weight:700;padding:0 3px}.vocab-letter-bar button.selected{color:var(--accent)}.word-table{flex:1;padding:0 24px 0 14px}.word-table-heading{position:sticky;top:0;z-index:2;background:#f7f7f9;display:grid;grid-template-columns:140px 70px minmax(150px,1fr) minmax(170px,1.25fr) 150px 40px;align-items:center;color:var(--subtle);font-size:11px;height:33px;border-bottom:1px solid var(--border);margin:0 -14px;padding:0 20px}.word-table-heading>span:first-child{font-size:13px;font-weight:600;grid-column:1}.word-table-heading>span:nth-child(2){grid-column:2}.word-table-heading>span:last-child{text-align:center}.word-row{display:grid;grid-template-columns:124px 70px minmax(150px,1fr) minmax(170px,1.25fr) 150px 40px;align-items:center;min-height:41px;border-bottom:1px solid var(--border);gap:0;font-size:14px}.word-part{position:relative;display:flex;gap:14px;align-items:center;color:var(--muted);font-size:12px}.word-part>button{color:var(--subtle);padding:0 8px}.word-audio{display:flex;align-items:center;gap:30px;color:var(--subtle);font-size:11px}.word-audio>button{height:25px;width:25px;border:1px solid var(--border);border-radius:8px;color:var(--muted);background:#fff;flex-shrink:0}.word-audio>small{display:none;font-size:10px;white-space:nowrap}.word-row>strong{font-weight:600;font-size:16px;padding-right:10px}.word-meaning{font-size:15px;color:var(--muted);padding-right:15px;line-height:1.5}.status-pill{font-size:12px;padding:2px 9px;background:#ededf0;color:#60616a;border-radius:20px;line-height:1.4}.status-pill.correct,.score.correct{background:#e5f8ef;color:#3ca583}.status-pill.wrong,.score.wrong{background:#ffedf1;color:#cd5778}.favorite-button{color:var(--subtle);padding:5px}.favorite-button.isFavorite{color:#d8a143}.favorite-button.isFavorite svg{fill:#f8e4b4}.word-menu{position:absolute;top:26px;left:5px;width:155px;padding:5px;z-index:20}.word-menu>button{width:100%;justify-content:flex-start;font-size:11px;padding:7px;border-radius:4px}.word-menu>button:hover{background:#f6f6f8}.vocab-filter{position:absolute;right:14px;top:164px;width:170px;padding:12px}.vocab-filter .menu-row{justify-content:space-between}.spelling-dialog{width:420px;text-align:center;padding-top:26px}.spelling-dialog h2 small{font-size:11px;color:var(--subtle);font-weight:400}.big-speak{border-radius:50%;background:color-mix(in srgb,var(--accent) 10%,white);color:var(--accent);height:80px;width:80px;margin:26px auto 14px}.quiz-meaning{color:var(--muted);font-size:14px;margin-bottom:20px}.spelling-input{width:100%;padding:12px;border:1px solid #ccc;border-radius:7px;font-size:20px;text-align:center}.spelling-dialog>.correct-text,.spelling-dialog>.wrong-text{margin-top:14px;font-size:13px}.correct-text{color:#2c9d7b}.wrong-text{color:#d45474}.stats-help{font-size:12px;color:var(--accent);text-decoration:underline;text-underline-offset:3px}.stats-content{padding:14px 24px 25px 14px;flex:1}.stats-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.stats-card{border:1px solid var(--border);border-radius:15px;padding:24px;min-width:0}.stats-overview{display:flex;align-items:center;gap:20px}.donut{height:116px;width:116px;flex-shrink:0;border-radius:50%;background:conic-gradient(var(--module-color) var(--progress),#ededf0 0);display:grid;place-items:center;position:relative}.donut:after{content:"";position:absolute;width:18px;height:2px;bottom:24px;left:3px;background:#828388;transform:rotate(-35deg);border-radius:3px}.donut>div{width:98px;height:98px;background:#fff;border-radius:50%;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;font-size:10px;color:var(--subtle)}.donut strong{font-size:14px;margin-bottom:1px}.donut b{font-size:10px;color:var(--muted)}.stats-overview h2{font-size:18px;color:var(--module-color);margin-bottom:6px}.stats-overview p{font-size:12px;color:var(--subtle);white-space:nowrap}.stats-overview small{font-size:10px;color:var(--subtle);display:block;margin-top:8px}.stats-divider{border-top:1px solid var(--border);margin:20px 0}.stat-bar-row{display:flex;align-items:center;gap:7px;margin-top:14px;font-size:12px;min-height:26px}.stat-bar-row>strong{font-size:13px;font-weight:600;width:79px;flex-shrink:0}.stat-track{position:relative;height:7px;background:#ededf0;border-radius:8px;flex:1;min-width:40px;margin-right:7px}.stat-track i{position:absolute;height:15px;width:2px;top:-4px;background:#85858a;border-radius:2px}.stat-track b{display:block;height:7px;border-radius:5px;background:var(--module-color);opacity:.75}.stat-bar-row>span:not(.stat-track){color:var(--subtle);white-space:nowrap}.stat-bar-row>small{color:var(--subtle);font-size:10px;white-space:nowrap}.stat-bar-row>b{color:var(--muted);font-size:12px;white-space:nowrap}.type-heading{margin-top:24px}.history-summary{display:flex;gap:65px;padding:20px 20px 24px;border:1px solid var(--border);border-radius:12px}.history-summary>div{display:flex;flex-direction:column;gap:5px}.history-summary strong{font-size:26px;color:var(--accent)}.history-summary span{color:var(--muted);font-size:12px}.calendar{border:1px solid var(--border);border-radius:12px;padding:18px;margin-top:14px;max-width:600px}.calendar header{display:flex;justify-content:space-between;font-size:13px;margin-bottom:14px}.calendar header small{color:var(--subtle);font-size:11px}.calendar-days{display:grid;grid-template-columns:repeat(7,1fr);gap:6px;text-align:center}.calendar-days span{font-size:11px;color:var(--muted);padding:8px 4px;border-radius:5px}.calendar-days span.practiced{background:color-mix(in srgb,var(--accent) 15%,white);color:var(--accent);font-weight:700}.history-row{width:100%;padding:13px 10px;border-bottom:1px solid var(--border);text-align:left;justify-content:flex-start;gap:12px}.history-row:hover{background:#faf9f7}.history-type{width:35px;height:35px;display:grid;place-items:center;border-radius:9px;color:var(--accent);background:color-mix(in srgb,var(--accent) 10%,white)}.history-row strong{font-size:13px}.history-row small{display:block;color:var(--subtle);font-size:10px;margin-top:5px}.history-row>b{margin-left:auto;color:#40937e;font-size:13px}.history-row>svg{color:var(--subtle)}.exam-app{--accent: #59a8df;height:100%;display:flex;flex-direction:column;background:#fff;color:#101113;font-family:Arial,PingFang SC,Microsoft YaHei,sans-serif;font-size:14px}.exam-window-bar{height:36px;flex-shrink:0;background:#1e3d54;display:flex;align-items:center;justify-content:center;position:relative;color:#ffffffb0;font-size:12px}.exam-window-bar .window-tools{color:#ffffffc0}.review-mode .exam-window-bar{background:#4a1a2e}.exam-top{min-height:59px;display:flex;justify-content:space-between;align-items:center;padding:8px 24px;position:relative;border-bottom:1px solid #ddd;flex-shrink:0}.exam-top>div:first-child{display:flex;flex-direction:column;gap:5px;font-size:14px}.exam-top>div:first-child>small{font-size:11px;color:#888}.timer-button{padding:0;justify-content:flex-start;color:#222;font-size:13px}.exam-tools{display:flex;align-items:center;gap:14px}.exam-tools>button{width:29px;height:29px;font-size:14px;color:#80848a;border-radius:5px}.exam-tools>button:hover{background:#f3f4f6}.little-a{font-size:11px;margin-left:-6px;margin-top:4px}.score{font-size:11px;padding:4px 7px;border-radius:3px;border:1px solid #00000008}.font-popover{position:absolute;right:60px;top:49px;width:150px;padding:10px}.font-popover>button{display:flex;justify-content:space-between;width:100%;padding:7px 5px;font-size:12px}.font-popover button.selected{color:var(--accent)}.exam-instructions{padding:10px 24px;border-bottom:1px solid #e2e2e2;background:#f8f8f8;flex-shrink:0;font-size:13px;line-height:1.5}.exam-instructions strong{font-size:14px}.exam-instructions p{color:#626262;font-size:12px}.exam-main{display:flex;flex:1;min-height:0;position:relative;overflow:hidden}.reading-passage{flex-shrink:0;padding:20px 20px 30px;font:var(--exam-font-size) / 1.65 Georgia,"Times New Roman",serif;scrollbar-gutter:stable}.reading-passage h2{font-family:Arial,sans-serif;font-size:calc(var(--exam-font-size) * 1.1);text-align:center;margin:0 0 12px}.passage-subtitle{text-align:center;color:#666;font-size:.9em;max-width:320px;margin:0 auto 28px!important;line-height:1.55}.reading-passage>p{margin-bottom:17px}.paragraph-label{font-weight:400}.reading-passage mark{background:#ffe58d}.split-handle{width:6px;flex-shrink:0;cursor:col-resize;background:#f0f0f1;border-left:1px solid #e8e8e9;border-right:1px solid #e8e8e9;touch-action:none;transition:background .12s}.split-handle:hover{background:#b8d8ec}.questions-pane{flex:1;min-width:0;display:flex;flex-direction:column}.questions-scroll{padding:20px 24px 40px;flex:1;min-height:0;font-size:var(--exam-font-size);line-height:1.65;scrollbar-gutter:stable}.questions-scroll h3{font-size:var(--exam-font-size);margin-bottom:10px}.questions-scroll p{margin-bottom:5px}.question-section{margin-bottom:30px}.answer-definitions{font-size:.85em;margin:15px 0 20px}.answer-definitions p b{display:inline-block;min-width:95px}.reading-question{margin:19px 0;border-radius:4px}.question-title{display:flex;align-items:flex-start;gap:10px}.question-title>b{min-width:23px;padding:0 3px;line-height:1.5;text-align:center;border:1px solid #ddd;border-radius:2px;font-size:.9em}.question-title>span{flex:1}.question-flag{padding:2px;color:#b3b6bd;opacity:.3}.question-flag.flagged{opacity:1;color:#e6a23e}.reading-question:hover .question-flag,.listening-question:hover .question-flag{opacity:1}.radio-options{display:flex;gap:14px;margin-top:9px;padding-left:32px;flex-wrap:wrap;font-size:.8em}.radio-options label{display:flex;align-items:center;gap:4px;padding:2px 4px;border-radius:4px}.radio-options label.chosen{background:#e5f4ff}.radio-options label.correct-choice{background:#dcf8eb}.radio-options input{margin:0 3px 0 0;width:13px;height:13px}.matching-table{width:100%;border-collapse:collapse;font-size:.85em;margin-top:15px}.matching-table td,.matching-table th{border:1px solid #d5d5d5;padding:10px 6px;text-align:center}.matching-table th{background:#f6f6f6;font-size:.9em}.matching-table td:first-child{text-align:left;width:43%;line-height:1.5}.matching-table td:first-child b{display:inline-block;margin-right:5px}.matching-table td input{margin:0;cursor:pointer;width:14px;height:14px}.matching-table .correct-cell{background:#d9f8e9}.matching-table .wrong-cell{background:#ffe2ea}.inline-input{border:1px solid #ccc;border-radius:3px;width:95px;height:27px;font-size:14px;text-align:center;margin:3px 5px}.listening-questions .questions-scroll{padding:22px 24px 40px}.listening-title{font-size:calc(var(--exam-font-size) * 1.35);margin:22px 0 12px;font-weight:700}.listening-question{display:flex;gap:10px;align-items:center;flex-wrap:wrap;padding:14px 0;line-height:1.6}.listening-question input{border:1px solid #8f8f8f;border-radius:3px;width:107px;height:27px;text-align:center;font-size:var(--exam-font-size);color:#1b1b1b;background:#fff}.listening-question input::placeholder{color:#2c2c2c;font-weight:600}.listening-question input.answer-correct{background:#e4f9f0;border-color:#27ad7f}.listening-question input.answer-wrong{background:#ffebef;border-color:#d55e80}.listening-question.focused input{box-shadow:0 0 0 1px #55a6dd}.inline-answer{color:#299f7a;font-size:13px}.question-navigation{height:41px;display:flex;align-items:center;border-top:1px solid #ddd;flex-shrink:0;padding:0 24px;font-size:13px;gap:2px}.question-navigation>b{margin-right:4px;white-space:nowrap}.question-navigation>button{width:28px;height:28px;position:relative;color:#666;border-radius:2px;flex-shrink:0;padding:0;font-size:12px}.question-navigation>button:before{content:"";position:absolute;height:3px;top:-4px;left:1px;right:1px;background:#d7d7d7}.question-navigation>button.answered:before{background:#5ba8df}.question-navigation>button.active{border:2px solid #5ba8df;color:#175176;font-weight:600}.question-navigation>button.correct{background:#def7ed;color:#3aa58b}.question-navigation>button.correct:before{background:#21bd8d}.question-navigation>button.wrong{background:#ffe6ee;color:#cc6685}.question-navigation>button.wrong:before{background:#ed4a7b}.question-navigation>button.flagged>i{position:absolute;width:5px;height:5px;right:1px;top:1px;background:#dba453;clip-path:polygon(0 0,100% 0,100% 75%,0 50%)}.nav-progress{margin-left:auto;color:#aaa;font-size:11px;white-space:nowrap;padding:0 12px}.question-arrows{display:flex;gap:4px}.question-arrows>button{width:30px;height:28px;background:#f0f0f2;border-radius:3px;color:#7b7b80}.exam-footer{height:55px;display:flex;align-items:center;padding:10px 24px;gap:12px;flex-shrink:0;background:#fafafa;border-top:1px solid #e2e2e2}.exam-footer>strong{font-size:14px;white-space:nowrap;margin-right:0}.exam-footer .page-health{color:#4eaa79;font-size:11px;margin-right:auto;white-space:nowrap;display:flex;align-items:center;gap:4px}.page-health i{height:5px;width:5px;border-radius:50%;background:#63b28c}.exam-footer>button{color:#70737c;font-size:13px;padding:7px 14px;border:1px solid #cfd0d4;background:#fafafa;border-radius:4px;white-space:nowrap;font-weight:400}.exam-footer .audio-button{color:#4e9dd2;border-color:#5aa4d7;background:#f0f8fd}.exam-footer>button:first-of-type{margin-left:auto}.exam-footer .review-exit{color:#b45b7c}.review-mode .exam-top{min-height:36px;padding:8px 10px}.review-mode .exam-top>div:first-child{font-size:13px}.review-mode .exam-instructions{padding:5px 10px}.review-mode .exam-instructions strong,.review-mode .exam-instructions p{font-size:12px}.review-mode .exam-tools{gap:7px}.review-mode .exam-tools>button{height:22px}.answer-explanation{flex:0 0 28%;border-top:3px solid #e8e8e9;padding:7px;min-height:100px;font-size:12px;line-height:1.6}.answer-explanation>div{display:flex;align-items:flex-start;gap:10px;padding-bottom:8px}.answer-explanation>div:first-child{border-bottom:1px solid #b1cbd3;margin-bottom:7px}.answer-explanation>div>span:last-child{margin-left:auto;font-size:11px}.answer-explanation p{flex:1}.answer-explanation .muted{font-size:11px;line-height:1.5}.explanation-tag{background:#11b0d7;color:#fff;border:1px solid #039bc2;padding:0 4px;font-size:10px;white-space:nowrap}.number-correct{border-color:#26bd8c!important;background:#dff6ec;color:#258d71}.number-wrong{border-color:#eb5387!important;background:#ffebf1;color:#cb4972}.notes-panel{width:235px;flex-shrink:0;display:flex;flex-direction:column;background:#fffef4;border-left:1px solid #e4dfc3}.notes-panel header{display:flex;align-items:center;justify-content:space-between;padding:12px;font-size:13px;border-bottom:1px solid #e4dfc3}.notes-panel textarea{flex:1;resize:none;border:0;outline:0;padding:12px;background:transparent;font-size:13px;line-height:1.8;min-height:80px}.notes-panel small{padding:10px;color:#aaa38e;font-size:10px}.writing-material{padding:25px 24px;line-height:1.65;flex-shrink:0;font-size:var(--exam-font-size)}.writing-material h3{font-size:16px;margin-bottom:18px}.writing-material p{margin-bottom:16px}.writing-material>.chart-preview{margin-top:30px;max-height:none}.writing-editor{flex:1;min-width:0;display:flex;flex-direction:column}.writing-editor header{padding:15px 18px;border-bottom:1px solid #eee;display:flex;justify-content:space-between;font-size:12px;color:#666}.writing-editor textarea{border:0;outline:none;flex:1;resize:none;padding:20px;font-size:var(--exam-font-size);line-height:1.85;color:#222;min-height:0}.writing-editor footer{font-size:10px;color:#8e9993;display:flex;align-items:center;gap:5px;padding:8px 15px;border-top:1px solid #eee}.writing-editor footer span{margin-left:auto;color:#999}.writing-feedback{border:1px solid #e5e5e5;border-radius:8px;margin-top:20px;padding:16px;background:#fafafa}.writing-feedback h3{margin-bottom:8px}.writing-feedback p{font-size:12px;margin:0;color:#777}.timer-dialog{padding:16px 18px;width:500px;border-radius:12px}.timer-dialog h2{font-size:16px}.timing-options{display:flex;gap:10px;margin-top:15px}.timing-options>button{padding:14px;text-align:left;justify-content:flex-start;border:1.5px solid #d5d5d7;flex:1;border-radius:11px;gap:12px;position:relative;min-height:68px}.timing-options button.selected{color:#58a6dc;border-color:#5aa9df;background:#f4faff;box-shadow:0 0 0 3px #5aa9df15}.timing-icon{width:37px;height:37px;border-radius:10px;border:1px solid #ddd;background:#f4f4f6;display:grid;place-items:center;color:#81848a;flex-shrink:0}.selected .timing-icon{background:#60afe4;border-color:#4c9bd0;color:#fff;box-shadow:0 2px 4px #5aa9df30}.timing-options strong{font-size:14px;display:block;line-height:1.5}.timing-options small{font-size:11px;display:block;line-height:1.6;white-space:nowrap;color:#aaa}.timing-options .selected small{color:#88aabd}.timing-radio{height:18px;width:18px;border:1.5px solid #d4d4d8;border-radius:50%;position:absolute;right:10px;top:10px}.selected .timing-radio{display:grid;place-items:center;background:#60afe4;border-color:#60afe4;color:#fff}.timer-dialog .dialog-actions{margin:14px -18px -16px;padding:12px 18px}.dialog-actions>span.muted{margin-right:auto;display:flex;align-items:center;gap:5px;font-size:11px}.countdown-field{font-size:12px;display:flex;align-items:center;gap:10px;margin-top:16px;color:#777}.countdown-field input{border:1px solid #ccc;border-radius:5px;padding:5px;width:70px;text-align:center}.confirm-dialog{width:420px}.confirm-dialog p{line-height:1.8}.audio-player{position:absolute;bottom:65px;right:25px;width:380px;padding:13px;background:#fff;z-index:45}.audio-player-title{display:flex;align-items:center;gap:8px;color:#617180;font-size:12px}.audio-player-title strong{flex:1;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;font-size:12px}.audio-player-title>button{padding:0;color:#999}.audio-controls{display:flex;align-items:center;gap:9px;margin-top:16px;color:#888;font-size:10px}.audio-controls input{flex:1;min-width:0;height:4px}.audio-play{height:34px;width:34px;display:grid;place-items:center;border-radius:50%;background:#eaf5ff;color:#4996cc;flex-shrink:0}.audio-options{display:flex;align-items:center;gap:12px;font-size:11px;color:#888;margin-top:14px}.audio-options label{display:flex;align-items:center;gap:6px}.audio-options label input{width:70px;height:3px}.audio-options select{border:1px solid #ddd;border-radius:5px;font-size:11px;padding:3px;color:#777;background:#fff}.audio-options>button{margin-left:auto;font-size:11px}.selection-menu{position:fixed;display:flex;padding:4px;gap:4px;z-index:80}.selection-menu button{padding:7px;font-size:11px;border-radius:5px}.selection-menu button:hover{background:#f6f6f8}.yellow-dot{width:12px;height:12px;background:#ffe58d;border-radius:50%}.intensive-toolbar{display:flex;align-items:center;gap:18px;padding:8px 20px;border-bottom:1px solid #ddd;font-size:12px;flex-shrink:0}.intensive-toolbar .segmented{max-width:230px}.transcript-panel{width:100%;padding:25px 45px}.transcript-panel h2{margin-bottom:25px}.transcript-line{display:flex;align-items:flex-start;gap:14px;padding:17px 12px;border-bottom:1px solid #eee;line-height:1.8;font-size:16px}.transcript-line.current{background:#eff8fd;border-left:3px solid #61a7d8}.transcript-line>button{color:#62a3d0;align-self:center}.transcript-line>small{color:#9fa4ac;font-size:10px;white-space:nowrap;align-self:center}.transcript-line>input{border:1px solid #ddd;border-radius:5px;padding:8px 12px;flex:1;font-size:14px}.exam-app .dialog{font-family:system-ui,-apple-system,sans-serif}@media(min-width:1400px){.word-table-heading{grid-template-columns:174px 110px minmax(170px,1fr) minmax(180px,1.25fr) 180px 40px}.word-row{grid-template-columns:158px 110px minmax(170px,1fr) minmax(180px,1.25fr) 180px 40px}.word-audio>small{display:block}.writing-card>.chart-preview{height:175px}.writing-caption{padding-top:3px;padding-bottom:20px}}@media(max-width:1150px){.vocab-categories .tabs{gap:13px}.vocab-categories .tabs>button{font-size:11px}.vocab-actions .outline{font-size:11px;padding:6px}.vocab-categories{gap:7px}.word-table-heading{grid-template-columns:118px 42px minmax(130px,1fr) minmax(170px,1.25fr) 100px 32px}.word-row{grid-template-columns:102px 42px minmax(130px,1fr) minmax(170px,1.25fr) 100px 32px}.stats-card{padding:20px}.stat-bar-row>small{display:none}.source-banner>div{gap:5px}.source-banner>div>span{font-size:11px}.exercise-title>span{font-size:11px}.row-metrics{min-width:100px}.exercise-row{padding-left:12px;padding-right:12px;gap:10px}.row-metrics small{font-size:8px}.mini-bar{width:27px}.row-metrics b,.row-metrics em{font-size:10px;min-width:40px}.exam-footer{padding-left:18px;padding-right:18px;gap:8px}.exam-footer>button{padding:7px 10px;font-size:12px}.exam-footer>strong{font-size:13px}.exam-footer .page-health{font-size:10px}.notes-panel{width:200px}.vocab-letter-bar{padding-left:20px}}@media(max-width:900px){.album-panel{flex-basis:235px}.album-scroll,.album-footer{padding-right:12px}.hot-album strong{font-size:11.5px}.hot-album{padding-left:13px;padding-right:11px}.album-description strong{font-size:12.5px}.album-card{padding-left:10px;gap:8px}.album-card.selected{padding-left:9px}.album-badge{width:30px;height:30px}.source-banner>div>span{display:none}.library-content{padding-right:14px}.tabs{gap:17px}.exercise-title>span{display:block;width:100%;font-size:10px}.exercise-title strong{font-size:13px}.row-metrics{min-width:95px}.stats-overview{gap:15px}.donut{height:100px;width:100px}.donut>div{height:84px;width:84px}.stats-overview h2{font-size:16px}.stats-card{padding:16px}.stat-bar-row>strong{width:60px;font-size:12px}.stats-grid{gap:10px}.vocab-categories{height:auto;min-height:45px;flex-wrap:wrap;padding-top:0;padding-bottom:0}.vocab-categories .tabs{height:44px;order:2;width:100%}.vocab-actions{position:absolute;right:14px;top:80px}.vocab-categories .tabs>button{font-size:12px}.vocab-filter{top:119px}.word-table-heading{grid-template-columns:100px 40px minmax(140px,1fr) minmax(150px,1fr) 82px 30px}.word-row{grid-template-columns:84px 40px minmax(140px,1fr) minmax(150px,1fr) 82px 30px}.word-part{font-size:11px;gap:7px}.word-row>strong{font-size:14px}.word-meaning{font-size:13px}.exam-footer .page-health{display:none}.questions-scroll{padding:15px}.reading-passage{padding:18px 16px}.radio-options{gap:6px;padding-left:20px}.notes-panel{width:180px}.exam-tools{gap:8px}.writing-material{padding:20px 18px}}@media(max-width:700px){.application{min-height:420px}.app-body{padding:7px 7px 7px 54px;gap:7px}.rail{width:54px;padding-left:4px;padding-right:4px}.rail button{font-size:10px;min-height:50px}.rail-icon svg{width:20px}.album-panel{flex-basis:200px}.album-scroll{padding:12px 9px}.hot-album strong{font-size:10px}.hot-album small{font-size:9px}.album-description strong{font-size:11px}.album-badge{height:26px;width:26px;font-size:10px}.album-card{padding:9px 7px;gap:7px;min-height:58px}.album-card.selected{padding:8px 6px}.album-description>span{font-size:10px}.album-description b{font-size:11px}.album-toolbar{padding:8px;height:42px}.album-toolbar .outline{font-size:11px}.album-footer{padding:8px}.compose-button strong{font-size:12px}.tab-bar{padding:0 10px;height:42px}.tabs{gap:14px;overflow:auto;scrollbar-width:none}.tabs>button{font-size:12px}.tabs>button small{font-size:10px}.filter-trigger{font-size:0;gap:0;padding:7px}.library-content{padding:10px}.source-banner{padding:7px;gap:5px;min-height:36px}.source-banner>div{font-size:10px}.source-banner .primary{font-size:9px;padding:4px 6px;gap:2px}.source-icon{display:none}.list-heading{margin-top:22px;font-size:13px}.list-heading small{font-size:11px}.exercise-row{padding:10px 8px;gap:7px;min-height:58px}.status-dot{width:16px;height:16px}.status-dot i{height:4px;width:4px}.exercise-title strong{font-size:12px}.row-metrics{min-width:70px}.row-metrics small,.mini-bar{display:none}.row-metrics>span{justify-content:flex-end}.row-metrics em{font-size:9px}.row-action{right:7px;padding:4px 7px!important;font-size:10px}.writing-card>.chart-preview{height:100px}.writing-caption{padding:6px 8px 12px}.writing-caption>span:first-child{font-size:9px}.writing-go{display:none!important}.stats-help{font-size:10px}.stats-content{padding:10px}.stats-grid{grid-template-columns:1fr}.stats-overview{gap:22px}.stats-card{padding:22px}.stat-bar-row>small{display:inline}.stat-bar-row>strong{width:80px}.center-page{padding:25px}.center-page h1{font-size:21px}.center-page p{font-size:12px}.slide-arrow.left{left:5px}.slide-arrow.right{right:5px}.settings-popover{left:54px;bottom:20px}.window-demo{font-size:9px;right:10px}.window-bar>span:not(.window-demo){font-size:11px;max-width:calc(100% - 220px);overflow:hidden;white-space:nowrap;text-overflow:ellipsis}.window-tools button{width:24px}.window-tools button:first-child{margin-right:4px}.vocab-hero{padding:12px;min-height:120px}.vocab-info{width:220px}.vocab-actions{top:79px;right:10px}.vocab-actions .outline{font-size:10px;padding:6px}.vocab-categories{padding:0 12px}.vocab-categories .tabs{gap:18px}.vocab-categories .tabs>button{font-size:11px}.vocab-letter-bar{padding:0 12px}.vocab-letter-bar>div{gap:12px}.vocab-letter-bar>button{font-size:10px}.word-table{padding:0 12px}.word-table-heading{grid-template-columns:70px 35px minmax(115px,1fr) minmax(130px,1fr) 72px 25px;min-width:555px}.word-row{grid-template-columns:54px 35px minmax(115px,1fr) minmax(130px,1fr) 72px 25px;min-width:525px;min-height:46px}.word-part>span{display:none}.word-part>button{padding:0 10px}.word-row>strong{font-size:13px}.word-meaning{font-size:12px}.status-pill,.word-table-heading{font-size:10px}.dialog{max-height:90dvh}.exam-top{padding:8px 15px}.exam-top>div:first-child{font-size:12px}.timer-button{font-size:12px}.exam-instructions{padding:9px 15px}.exam-instructions p{font-size:11px}.questions-scroll{font-size:calc(var(--exam-font-size) * .85);padding:14px}.reading-passage{font-size:calc(var(--exam-font-size) * .85);padding:15px 12px}.answer-definitions b{min-width:70px!important}.matching-table td,.matching-table th{padding:7px 3px}.matching-table td input{width:11px;height:11px}.exam-footer{height:auto;min-height:52px;flex-wrap:wrap;padding:8px 10px;gap:6px}.exam-footer>strong{font-size:10px;max-width:160px}.exam-footer>button{font-size:10px;padding:6px 8px;gap:4px}.exam-footer>button>svg{width:14px}.exam-footer>.page-health{display:none}.question-navigation{padding:0 10px;height:38px;gap:1px}.question-navigation>b{font-size:11px}.question-navigation>button{width:22px;height:25px;font-size:10px}.question-arrows{display:none}.nav-progress{font-size:9px;padding:0 5px}.notes-panel{width:150px}.writing-editor textarea{padding:15px}.writing-editor header{padding:10px;font-size:11px}.writing-material{font-size:calc(var(--exam-font-size) * .85);padding:18px 14px}.exam-footer .review-exit{margin-left:auto}.audio-player{max-width:calc(100% - 30px);right:15px;bottom:62px}.timing-options{gap:8px}.timing-options>button{padding:10px;gap:9px}.timing-options strong{font-size:13px}.timing-options small{font-size:10px;white-space:normal}.timing-icon{height:32px;width:32px}.timing-radio{height:14px;width:14px;right:6px;top:6px}.timer-dialog .dialog-actions{gap:5px;padding:10px}.dialog-actions>span.muted{font-size:9px}.timer-dialog .dialog-actions button{font-size:11px;padding:6px 9px}.transcript-panel{padding:20px}.transcript-line{font-size:14px;gap:7px}.toast-message{font-size:11px;padding:10px 13px;max-width:92%;white-space:normal}}@media(max-width:520px){.album-panel{display:none}.window-bar{height:34px}.app-body{height:calc(100% - 34px)}.window-tools{height:34px}.window-demo{display:none}.window-bar>span:not(.window-demo){margin-left:105px;max-width:calc(100% - 145px);font-size:10px}.source-banner>div{font-size:11px}.source-banner .primary{font-size:10px}.row-metrics{min-width:68px}.exercise-title strong{font-size:12.5px}.exercise-title>span{font-size:11px}.exercise-row{min-height:57px}.filter-popover{right:10px;width:245px}.source-banner{margin-bottom:2px}.vocab-info{width:215px}.vocab-card strong{font-size:14px}.vocab-actions{top:121px;right:12px;z-index:3}.vocab-categories .tabs{padding-right:10px}.vocab-categories{padding-top:38px}.vocab-letter-bar>div{gap:8px}.vocab-letter-bar>button{font-size:9px;gap:4px}.vocab-letter-bar>div>button{font-size:12px}.vocab-filter{top:157px}.vocab-hero{min-height:116px}.stats-help{display:none}.stats-grid{gap:12px}.stats-card{padding:18px}.history-summary{gap:30px;padding:16px}.history-summary strong{font-size:22px}.history-summary span{font-size:10px}.center-page h1{font-size:21px}.center-page p{font-size:11px}.slide-dots{margin-top:40px}.modal-overlay{padding:12px}.dialog{padding:18px}.dialog-actions{margin:18px -18px -18px}.search-results{max-height:50dvh}.search-field kbd{display:none}.search-dialog h2{font-size:15px}.search-results>button{padding:10px 6px}.search-results strong{font-size:12px}.reading-passage{width:46%!important;padding:12px 9px}.questions-scroll{padding:12px 10px;font-size:12px}.questions-scroll h3,.reading-passage{font-size:13px}.radio-options{padding-left:0;gap:3px;font-size:9px}.radio-options label{padding:2px}.answer-definitions{font-size:10px}.answer-definitions p b{min-width:60px!important;display:block}.question-title{gap:5px}.question-title>b{min-width:17px;font-size:10px}.question-flag{display:none}.question-navigation{overflow:auto;scrollbar-width:none;min-height:38px}.question-navigation>button{width:19px;flex-shrink:0;font-size:9px;height:24px}.question-navigation>b{font-size:10px;margin-right:2px}.nav-progress{display:none}.exam-footer>strong{display:none}.exam-footer{justify-content:flex-end}.exam-footer>button:first-of-type{margin-left:0}.exam-footer>button{font-size:10px;flex:1}.exam-footer .review-exit{margin-left:0}.exam-instructions{padding:8px 10px}.exam-top{padding:7px 10px}.exam-tools{gap:5px}.exam-tools>button{width:24px}.score{font-size:9px;padding:3px 4px}.review-mode .exam-top>div:first-child{font-size:11px;max-width:50%}.review-mode .exam-tools{gap:4px}.notes-panel{position:absolute;right:0;top:0;bottom:0;z-index:5;width:200px;box-shadow:-10px 0 20px #0001}.timing-options{flex-direction:column}.timing-options>button{min-height:65px;padding:11px 14px}.timing-options small{white-space:nowrap}.timing-options strong{font-size:14px}.timing-radio{right:14px;top:14px;width:18px;height:18px}.timer-dialog .dialog-actions{flex-wrap:wrap;gap:8px}.timer-dialog .dialog-actions>span{width:100%;font-size:10px;margin-bottom:3px}.timer-dialog .dialog-actions button{font-size:12px}.writing-material{width:48%!important;font-size:12px;padding:15px 12px}.writing-editor textarea{font-size:13px;padding:12px}.writing-editor header{font-size:10px;gap:5px}.writing-editor header>span{white-space:nowrap}.writing-editor footer{font-size:9px;padding:7px}.writing-editor footer>span{display:none}.answer-explanation{font-size:10px;padding:5px}.answer-explanation>div{gap:5px;flex-wrap:wrap}.answer-explanation .muted{font-size:10px}.intensive-toolbar{gap:8px;padding:7px 10px;flex-wrap:wrap}.intensive-toolbar>.muted{display:none}.transcript-panel{padding:15px}.transcript-line{padding:12px 5px;font-size:13px}.listening-question{padding:11px 0;font-size:14px}.listening-question input{font-size:14px}.listening-questions .questions-scroll{padding:16px 15px}.listening-title{font-size:21px}.listening-questions .questions-scroll>p{font-size:14px}}@media(prefers-reduced-motion:reduce){*,*:before,*:after{scroll-behavior:auto!important;transition:none!important;animation:none!important}}.album-card{justify-content:flex-start}.mini-bar>b{min-width:0!important}.exam-app:not(.review-mode) .exam-instructions{margin:0 15px;padding:10px 24px;border:1px solid #d2d2d2;border-radius:2px;min-height:67px;background:#fafafa}.exam-app:not(.review-mode) .exam-top{border-bottom:0}.exam-app:not(.review-mode) .exam-instructions strong{font-size:16px}.exam-app:not(.review-mode) .exam-instructions p{font-size:16px;color:#141414;line-height:1.5}.exam-app:not(.review-mode) .exam-main{margin-top:13px}.radio-options{flex-direction:column;align-items:flex-start;gap:9px;font-size:.95em}.countdown-stepper{display:flex;align-items:center;justify-content:space-between;margin-top:14px;border:1px solid #d4d4d6;border-radius:10px;background:#f7f7f9;padding:14px 16px}.countdown-stepper>button{width:36px;height:36px;border:1px solid #d0d0d3;background:#fff;border-radius:10px;color:#111;font-size:22px;font-weight:600}.countdown-stepper>label{display:flex;align-items:baseline;gap:7px}.countdown-stepper input{border:0;outline:0;background:transparent;text-align:center;width:52px;font-size:38px;line-height:1.1;font-weight:600;appearance:textfield;-moz-appearance:textfield;color:#050505}.countdown-stepper input::-webkit-inner-spin-button{appearance:none}.countdown-stepper label>span{color:#777;font-size:12px}.timing-options>button{padding-top:14px;padding-bottom:14px}.timer-dialog .dialog-actions .primary{background:#4ca6e2;border-color:#4ca6e2}.review-mode .radio-options{flex-direction:row;gap:9px;font-size:.8em}.exam-app:not(.review-mode) .reading-passage h2{margin-top:10px;margin-bottom:14px}.exam-app:not(.review-mode) .passage-subtitle{margin-bottom:35px!important}@media(max-width:520px){.exam-app:not(.review-mode) .exam-instructions{margin:0 10px;padding:10px 14px;min-height:60px}.exam-app:not(.review-mode) .exam-instructions p{font-size:13px}.exam-app:not(.review-mode) .exam-instructions strong{font-size:14px}.exam-app:not(.review-mode) .exam-main{margin-top:5px}.countdown-stepper{padding:12px}.countdown-stepper input{font-size:32px}.countdown-stepper>button{height:32px;width:32px}.radio-options{font-size:11px;gap:7px}}.part-select{border:1px solid #cbd6df;background:#f8fbff;color:#336581;font-weight:600;font-size:11px;border-radius:4px;padding:5px 3px;margin-right:4px}.writing-card{gap:0}.writing-card>.chart-preview{height:120px}.writing-caption{padding:3px 14px 15px}.vocab-categories .tabs>button:nth-child(n+8){order:0}.vocab-categories .tabs>button:nth-child(n+8){order:-1}@media(min-width:901px)and (max-width:1399px){.word-table-heading{grid-template-columns:156px 70px minmax(150px,1fr) minmax(170px,1.25fr) 190px 30px}.word-row{grid-template-columns:140px 70px minmax(150px,1fr) minmax(170px,1.25fr) 190px 30px}.word-audio>small{display:block}.word-audio{gap:25px}.vocab-categories .tabs{gap:17px}.vocab-categories .tabs>button{font-size:12px}.vocab-categories .tabs>button small{font-size:10px}}.vocab-hero{height:120px;min-height:120px}.vocab-card{height:79px;padding-top:14px;padding-bottom:14px}.vocab-help{height:26px;padding:4px 2px;font-size:12px}.vocab-info{transform:translateY(0)}@media(max-width:520px){.vocab-hero{height:120px;min-height:120px}.vocab-actions{top:125px}}.vocab-card{height:66px;padding-top:11px;padding-bottom:11px}.album-dismiss{display:none}@media(max-width:520px){.mobile-album-open .album-panel{display:flex;position:absolute;left:54px;top:7px;bottom:7px;width:235px;z-index:45;box-shadow:10px 0 25px #0002}.mobile-album-open .album-dismiss{display:block;position:absolute;inset:0 0 0 54px;background:#0003;z-index:40}.mobile-album-open .album-panel .album-description strong{font-size:12px}.mobile-album-open .album-panel .hot-album strong{font-size:11px}}.hot-list{background:#ffede5}.hot-list .exercise-row{background:#ffe3d8;border-bottom-color:#ecc5b5;min-height:44px}.hot-list .exercise-row:hover,.hot-list .exercise-row.selected{background:#ffdacb}.hot-reports{font-size:12px;font-weight:600;color:#b9643f;margin-left:auto;white-space:nowrap}.hot-list .exercise-row:nth-child(n+9){background:#fff0e9}.hot-list .exercise-title strong{font-size:15px}.hot-list .exercise-row:hover .hot-reports,.hot-list .exercise-row.selected .hot-reports{visibility:hidden}@media(max-width:900px){.hot-reports{font-size:10px}.hot-list .exercise-title strong{font-size:13px}}@media(max-width:700px){.hot-reports{font-size:9px}.hot-list .exercise-title strong{font-size:12px}}.auth-steps{display:flex;align-items:center;gap:12px;font-size:11px;color:#aaa;margin:3px 30px 26px 0}.auth-steps span{display:flex;align-items:center;gap:6px}.auth-steps span:before{content:"";width:7px;height:7px;background:#ddd;border-radius:50%;outline:3px solid #f2f2f4}.auth-steps span.current{color:var(--accent);font-weight:600}.auth-steps span.current:before,.auth-steps span.done:before{background:var(--accent)}.auth-steps i{width:50px;height:1px;background:#e4e4e6}.auth-form>input{width:100%;border:1px solid #ccc;border-radius:7px;padding:11px 12px;font-size:14px}.auth-form .primary{width:100%;margin-top:18px;padding:10px}.auth-form .wrong-text{font-size:11px;margin-top:7px}.auth-legal{font-size:10px;color:#999;line-height:1.7;margin-top:14px}.auth-otp{display:flex;gap:10px;margin:24px 0 18px}.auth-otp input{flex:1;width:0;border:1px solid #d1d1d6;border-radius:8px;height:53px;text-align:center;font-size:24px;color:#333;background:#fff}.auth-submit{width:100%;padding:10px;margin-top:15px}.auth-links{display:flex;justify-content:center;gap:10px;font-size:11px;color:var(--accent);margin-top:16px}.auth-links>span{color:#ccc}.dialog>.wrong-text{font-size:12px}.compose-workspace{flex:1;min-width:0;height:100%;display:flex;gap:10px}.compose-panel{width:320px;flex-shrink:0;display:flex;flex-direction:column}.compose-panel>header{height:45px;border-bottom:1px solid var(--border);display:flex;align-items:center;gap:9px;padding:0 16px;flex-shrink:0}.compose-panel>header>span{height:23px;width:23px;border-radius:6px;display:grid;place-items:center;color:#fff;background:var(--accent)}.compose-panel>header>strong{font-size:15px}.compose-panel>header>button{margin-left:auto;padding:0;color:var(--subtle)}.compose-options{padding:12px 16px 15px;flex:1;min-height:0}.compose-options>.segmented{height:35px}.compose-options .segmented button{font-size:14px;color:var(--muted);font-weight:600}.compose-options .segmented button.selected{color:#232427}.compose-label{font-size:12px;color:var(--muted);font-weight:600;margin:14px 0 8px}.compose-label small{font-size:10px;color:var(--subtle);font-weight:400;margin-left:5px}.module-cards{display:flex;gap:8px}.module-cards>button{border:1px solid #d8d8da;border-radius:9px;flex:1;justify-content:flex-start;gap:8px;text-align:left;padding:9px 8px}.module-cards>button>span{height:25px;width:25px;display:grid;place-items:center;background:#f0f0f2;border-radius:7px;color:var(--muted);flex-shrink:0}.module-cards strong{font-size:13px;display:block}.module-cards small{font-size:10px;color:var(--subtle);white-space:nowrap}.module-cards .selected{border:2px solid var(--accent);padding:8px 7px;background:color-mix(in srgb,var(--accent) 7%,white);color:var(--accent)}.module-cards .selected>span{background:var(--accent);color:#fff}.module-cards .selected small{color:var(--accent);opacity:.8}.compose-filters{border-top:1px dashed var(--border);margin-top:10px;padding-top:0}.switch-card{display:flex;align-items:center;justify-content:space-between;gap:12px;position:relative;padding:10px 12px;border:1px solid color-mix(in srgb,var(--accent) 45%,var(--border));background:color-mix(in srgb,var(--accent) 5%,white);border-radius:9px;margin-bottom:8px;cursor:pointer}.switch-card strong{font-size:13px;font-weight:600}.switch-card small{font-size:11px;color:var(--subtle);display:block;margin-top:3px;line-height:1.45}.switch-card input{position:absolute;right:13px;opacity:0;width:31px;height:18px;margin:0;cursor:pointer}.switch-card>i{height:18px;width:32px;border-radius:20px;background:#d1d1d6;flex-shrink:0;pointer-events:none;position:relative}.switch-card>i:after{content:"";position:absolute;width:14px;height:14px;top:2px;left:2px;border-radius:50%;background:#fff;box-shadow:0 1px 2px #0002}.switch-card input:checked+i{background:var(--accent)}.switch-card input:checked+i:after{left:16px}.switch-card input:focus-visible+i{outline:2px solid var(--accent);outline-offset:3px}.difficulty-section{border-top:1px dashed var(--border);border-bottom:1px dashed var(--border);padding-bottom:14px;margin-top:10px}.difficulty-section>.compose-label{margin-top:10px}.difficulty-track{position:relative;margin:19px 6px 0}.difficulty-track>input{width:100%;margin:0;height:5px;accent-color:var(--accent)}.difficulty-track>div{display:flex;justify-content:space-between;margin-top:6px}.difficulty-track button{font-size:11px;color:var(--subtle);padding:0}.difficulty-track button.selected{color:var(--accent);font-weight:600}.difficulty-track.disabled{opacity:.6}.compose-access{display:flex;align-items:center;gap:12px;border:1px solid #d9d9de;background:#f7f7f9;border-radius:11px;padding:14px 12px;margin-top:10px;color:var(--accent)}.compose-access strong{font-size:12px;color:#333;display:block;margin-bottom:4px}.compose-access small{font-size:10px;color:var(--muted);line-height:1.5;display:block}.compose-panel>footer{display:flex;justify-content:flex-end;gap:8px;padding:12px 16px;background:#f7f7f9;border-top:1px solid var(--border);flex-shrink:0}.compose-panel>footer>button{font-size:13px;padding:7px 11px}.random-compose{flex:1;min-width:0;border:1px dashed var(--accent);border-radius:12px;display:flex;align-items:center;justify-content:center;text-align:center}.random-compose h2{font-size:18px;color:var(--accent);margin-bottom:8px}.random-compose p{font-size:13px;color:var(--muted)}.manual-compose{flex:1;min-width:0;display:flex;flex-direction:column;position:relative}.compose-albums{display:flex;gap:6px;flex-wrap:wrap;padding:12px 14px;border-bottom:1px solid var(--border);flex-shrink:0}.compose-albums>button{padding:6px 12px;border:1px solid var(--border);border-radius:9px;font-weight:600;font-size:12px}.compose-albums>button.selected{border:2px solid var(--accent);padding:5px 11px;background:color-mix(in srgb,var(--accent) 5%,white)}.manual-list{padding:0 24px 20px 14px;flex:1}.manual-list>.list-heading{margin-top:27px}.compose-row{cursor:pointer;min-height:49px}.compose-row>input{width:17px;height:17px;accent-color:var(--accent);flex-shrink:0;margin:0 0 0 6px}.compose-row .exercise-title{font-size:14px}.compose-average{font-size:11px;line-height:1.3;color:#b79a54;display:flex;flex-direction:column;white-space:nowrap}.compose-average small{font-size:10px;color:var(--subtle)}.chosen-exercises{margin-top:24px;border-bottom:1px dashed var(--border);padding-bottom:10px}.chosen-exercise{display:flex;gap:10px;border:1px dashed #ddd;border-radius:12px;align-items:center;padding:11px;margin-bottom:7px;min-height:55px;color:var(--muted)}.chosen-exercise>span{width:35px;height:35px;display:grid;place-items:center;border-radius:10px;font-weight:600;color:var(--muted);background:#f0f0f2;flex-shrink:0}.chosen-exercise strong{font-size:11px;display:block;font-weight:600;color:#444}.chosen-exercise p{font-size:13px}.chosen-exercise small{font-size:10px;color:var(--subtle);display:block;margin-top:4px}.chosen-exercise>button{margin-left:auto;padding:0;color:var(--subtle)}.chosen-exercise.filled{border:1px solid color-mix(in srgb,var(--accent) 30%,white);background:color-mix(in srgb,var(--accent) 4%,white)}.compose-sort{position:absolute;right:15px;top:145px;width:220px;padding:12px}.compose-sort .menu-row{justify-content:space-between;font-size:12px}@media(max-width:900px){.compose-panel{width:280px}.compose-options{padding:12px}.compose-panel>header{padding:0 12px}.module-cards>button{gap:6px;padding:8px 6px}.module-cards strong{font-size:12px}.module-cards small,.compose-label small{font-size:9px}.manual-list{padding:0 12px 15px}.compose-albums{padding:10px;gap:5px}.compose-albums>button{font-size:10px;padding:5px 7px}.compose-albums>button.selected{padding:4px 6px}.compose-row .exercise-title strong{font-size:12px}.compose-average{font-size:10px}}@media(max-width:700px){.compose-panel{width:240px}.module-cards{gap:5px}.module-cards>button>span{display:none}.module-cards>button{padding:8px 12px}.module-cards>button.selected{padding:7px 11px}.difficulty-section .compose-label small{display:block;margin:5px 0}.random-compose h2{font-size:15px}.random-compose p{font-size:11px;line-height:1.8}.random-compose{padding:15px}.switch-card{padding:9px}.switch-card strong{font-size:12px}.switch-card small{font-size:10px}.compose-row{padding:9px 7px;gap:7px}.compose-average{display:none}.chosen-exercise p{font-size:11px}.chosen-exercise{padding:8px;gap:7px}.compose-access{padding:10px}.compose-access>svg{display:none}.compose-access strong{font-size:11px}.compose-panel>footer{padding:10px;gap:5px}.compose-panel>footer>button{font-size:12px;padding:7px 8px}}@media(max-width:520px){.compose-workspace{overflow:auto;scrollbar-width:thin;gap:7px}.compose-panel{width:100%;flex:0 0 100%;min-height:100%}.compose-panel:has(+.manual-compose){width:200px;flex-basis:200px}.manual-compose{flex:0 0 290px}.random-compose{display:none}.compose-panel>header{height:42px}.compose-panel .module-cards>button>span{display:grid}.compose-panel .module-cards>button{padding:10px}.compose-panel .module-cards>button.selected{padding:9px}.compose-albums>button{font-size:10px}.chosen-exercises{margin-top:20px}.compose-options>.segmented button{font-size:12px}.compose-access small{font-size:10px}.compose-workspace:has(.manual-compose){padding-bottom:3px}}.backend-status{position:fixed;top:42px;left:50%;transform:translate(-50%);padding:10px 18px;border-radius:10px;background:var(--panel,#fff);box-shadow:0 3px 20px #0002;z-index:150;font-size:13px}.backend-status button{margin-left:12px;text-decoration:underline}