:root{font-family:Segoe UI,Microsoft YaHei,system-ui,sans-serif;font-synthesis:none;font-size:16px;color:#2d3748;background:#f7fafc;--accent: #237c7b;--accent-hover: #1d6867;--accent-soft: #e6f6f4;--muted: #64748b;--border: #e7edf2;--shadow: 0 4px 20px rgba(28, 62, 74, .045);--code-font: Consolas, "Cascadia Code", "Courier New", monospace}pre,code{font-family:var(--code-font)}*{box-sizing:border-box}body{margin:0}button,input,select,textarea{font:inherit}button,a{-webkit-tap-highlight-color:transparent}button,.primary,.secondary{cursor:pointer;display:inline-flex;align-items:center;justify-content:center;gap:8px;font-weight:600;border:1px solid transparent;border-radius:10px;background:transparent;color:inherit;transition:background .15s ease-out,box-shadow .15s ease-out,transform .15s ease-out}button:hover,.primary:hover,.secondary:hover{transform:translateY(-2px)}button:active,.primary:active,.secondary:active{transform:translateY(0) scale(.98);box-shadow:0 1px 2px #1018280d}button:disabled{opacity:.45;cursor:not-allowed;transform:none}button svg{flex-shrink:0}a{color:var(--accent);text-decoration:none}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible,summary:focus-visible,[tabindex]:focus-visible{outline:2px solid var(--accent);outline-offset:3px}h1,h2,h3{color:#273344;font-weight:650;letter-spacing:-.025em}p{line-height:1.8}small,.muted{color:var(--muted)}.primary,.secondary{padding:11px 18px;min-height:44px;font-size:15px;box-shadow:0 2px 4px #182b4609}.primary{background:var(--accent);color:#fff}.primary:hover{background:var(--accent-hover);box-shadow:0 4px 8px #182b4615}.secondary{background:#fff;border-color:#dbe4eb;color:#465467}.secondary:hover{background:#f7fafc;box-shadow:0 4px 8px #182b4610}.icon-button{padding:8px;width:38px;height:38px;color:#64748b;border-radius:12px;flex-shrink:0}.icon-button:hover{background:var(--accent-soft);color:var(--accent)}.subtle-button{padding:8px 12px;min-height:40px;font-size:14px;color:#526478}.subtle-button:hover{background:#fff;color:var(--accent);box-shadow:var(--shadow)}.text-link{display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:600}.icon-tile{display:grid;place-items:center;width:48px;height:48px;border-radius:13px;background:var(--accent-soft);color:var(--accent);flex-shrink:0}.green{color:#15803d}.red{color:#b91c1c}.empty{padding:32px;font-size:15px;line-height:1.9;color:var(--muted)}.toast{position:fixed;z-index:60;bottom:24px;left:50%;transform:translate(-50%);display:flex;align-items:center;gap:10px;max-width:calc(100% - 32px);width:max-content;padding:14px 20px;border:1px solid var(--border);background:#fff;box-shadow:0 8px 24px #182b4615;border-radius:12px;font-size:14px}.modal-backdrop{position:fixed;z-index:70;inset:0;display:grid;place-items:center;background:#17233360}.modal{padding:28px;background:#fff;border-radius:18px;margin:20px;max-width:440px;box-shadow:var(--shadow)}.modal h2{font-size:23px;margin:0 0 16px}.modal p{color:var(--muted)}.modal>div{display:flex;justify-content:flex-end;gap:12px;margin-top:24px}.not-found{text-align:center;padding:80px 20px}.not-found p{color:var(--muted)}@media(prefers-reduced-motion:reduce){*,*:before,*:after{transition:none!important;scroll-behavior:auto!important}}.app-content{min-width:0;margin-left:0}.side-open .app-content{margin-left:268px}.sidebar{position:fixed;z-index:40;top:20px;bottom:20px;left:20px;width:226px;padding:18px 14px;border-radius:18px;display:flex;flex-direction:column;overflow-y:auto;scrollbar-width:thin;background:#f7fafc}.sidebar-brand{display:flex;align-items:center;justify-content:space-between;gap:6px}.sidebar-brand .icon-button{width:28px;padding:4px}.brand{display:inline-flex;align-items:center;gap:10px;color:#273344;white-space:nowrap}.brand strong{font-size:21px;letter-spacing:-.5px}.logo{width:35px;height:35px;display:grid;place-items:center;border-radius:11px;background:var(--accent);color:#fff}.sidebar-caption{margin:8px 0 26px 45px;font-size:13px;color:var(--muted)}.primary-navigation{display:grid;gap:8px}.sidebar-link{display:flex;align-items:center;gap:13px;padding:11px 12px;color:#607086;font-size:15px;font-weight:600;border-radius:13px}.sidebar-link.active{background:#fff;box-shadow:var(--shadow);color:#273344}.sidebar-link:hover{background:#fff}.nav-icon{display:grid;place-items:center;width:34px;height:34px;border-radius:11px;background:#fff;box-shadow:0 2px 6px #182b4607;color:var(--accent)}.sidebar-link.active .nav-icon{color:#fff;background:var(--accent)}.sidebar-scrim{display:none}.header{height:98px;padding:0 30px;display:flex;align-items:center;justify-content:space-between;gap:20px}.header-location,.header-right{display:flex;align-items:center;gap:14px;min-width:0}.header-location>div{min-width:0}.header-location strong{display:block;font-size:18px;margin-top:7px}.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--muted);white-space:nowrap}.breadcrumb a{color:#718096}.breadcrumb a:hover{color:var(--accent)}.local{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--muted)}.local>span{width:6px;height:6px;border-radius:50%;background:#319795}.avatar{display:grid;place-items:center;width:36px;height:36px;border-radius:12px;background:#e7eff3;font-size:13px;color:#536478}.toolbar-actions{display:flex;align-items:center;gap:4px}.main{padding:12px 30px 32px;min-width:0}.library,.home-page{max-width:1380px;margin:0 auto;width:100%}.page-heading{display:flex;align-items:center;justify-content:space-between;gap:24px;margin:10px 0 28px}.page-heading h1{font-size:30px;line-height:1.5;margin:0 0 10px}.page-heading p{font-size:16px;max-width:70ch;margin:0;color:var(--muted)}.number-label{white-space:nowrap;padding:8px 14px;background:#edf2f7;color:#63758a;font-size:14px;border-radius:10px}.home-overview{display:grid;grid-template-columns:1.2fr 1fr;gap:24px;margin-bottom:24px}.continue-panel,.progress-panel,.entry-card,.subject-link,.featured-list{background:#fff;border:1px solid var(--border);box-shadow:var(--shadow);border-radius:18px}.continue-panel{display:flex;align-items:flex-start;gap:24px;padding:30px}.continue-panel>.icon-tile{width:64px;height:64px;background:var(--accent);color:#fff;border-radius:18px}.continue-panel h2{font-size:25px;margin:9px 0}.continue-panel p{color:var(--muted);font-size:14px;margin:0 0 22px}.continue-panel .muted{font-size:14px}.progress-panel{padding:28px}.section-heading{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-bottom:22px}.section-heading h2{font-size:21px;margin:0}.section-heading .muted{font-size:14px}.progress-panel .section-heading{color:var(--accent)}.progress-value{font-size:32px;font-weight:650}.progress-value span{font-size:14px;color:var(--muted);font-weight:400}.progress-track{height:7px;background:#edf2f7;border-radius:10px;margin:18px 0;overflow:hidden}.progress-track i{display:block;height:100%;background:var(--accent);border-radius:inherit}.progress-panel p{font-size:14px;color:var(--muted);margin:12px 0}.entry-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}.entry-card{padding:26px;display:block;transition:transform .2s ease-out,box-shadow .2s ease-out}.entry-card:hover{transform:translateY(-2px);box-shadow:0 8px 24px #182b460a}.entry-card h2{font-size:21px;display:flex;align-items:center;justify-content:space-between;margin:20px 0 10px}.entry-card h2 span{font-size:24px;color:var(--accent)}.entry-card p{font-size:15px;color:var(--muted);margin:0 0 20px}.home-section{margin-top:36px}.subject-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}.subject-link{padding:20px;display:flex;align-items:center;gap:14px;color:#354357}.subject-link>svg{margin-left:auto;color:var(--muted)}.subject-link strong{display:block;font-size:16px}.subject-link small{display:block;font-size:12px;margin-top:7px}.subject-link:hover{border-color:#b6dcda}.featured-list{overflow:hidden}.featured-list>button{display:flex;width:100%;padding:19px 24px;gap:18px;text-align:left;justify-content:flex-start;border-radius:12px;border-bottom:1px solid var(--border)}.featured-list>button:last-child{border-bottom:0}.featured-list>button:hover{background:#f8fbfc;transform:none}.featured-list strong{font-size:16px;font-weight:600;display:block}.featured-list small{display:block;margin-top:7px;font-size:13px;font-weight:400}.featured-list .exam-count{margin-left:auto}.frequency-note{font-size:12px;text-align:right;margin-top:12px}@media(max-width:1200px){.subject-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.home-overview{grid-template-columns:1fr}.main{padding:12px 24px 28px}.header{padding:0 24px}.entry-grid{gap:16px}.entry-card{padding:22px}}@media(max-width:1000px){.side-open .app-content{margin-left:0}.sidebar{background:#fff;box-shadow:0 10px 30px #17233326;left:12px;top:12px;bottom:12px}.sidebar-scrim{display:block;position:fixed;z-index:35;inset:0;border-radius:10px;background:#17233360}.sidebar-scrim:hover{transform:none}.local{display:none}}@media(max-width:700px){.header{height:82px;padding:0 16px;gap:8px}.header-right{gap:4px}.header-location{gap:8px}.header-location strong{font-size:16px}.breadcrumb{font-size:12px;gap:4px}.breadcrumb span:last-child{max-width:110px;overflow:hidden;text-overflow:ellipsis}.avatar,.share-button span,.toolbar-actions .subtle-button span{display:none}.share-button,.toolbar-actions .subtle-button{padding:8px}.main{padding:12px 16px 24px}.page-heading{display:block}.page-heading h1{font-size:26px}.page-heading p{font-size:15px}.number-label{display:inline-block;margin-top:16px}.entry-grid,.subject-grid{grid-template-columns:1fr}.continue-panel{gap:16px;padding:24px}.continue-panel>.icon-tile{width:48px;height:48px}.continue-panel h2{font-size:22px}.progress-panel{padding:24px}.section-heading{flex-wrap:wrap;gap:12px}.section-heading h2{font-size:20px}.featured-list>button{padding:18px;gap:12px}.featured-list .icon-tile{display:none}.featured-list .exam-count{font-size:12px;white-space:nowrap}.featured-list strong{font-size:15px}.home-section{margin-top:28px}}.library-stats{display:flex;align-items:center;gap:36px;padding:22px 26px;background:#fff;border:1px solid var(--border);border-radius:16px;box-shadow:var(--shadow);margin-bottom:24px}.level-badge{display:inline-flex;align-items:center;border-radius:8px;padding:5px 9px;font-size:13px;font-weight:600;line-height:1.5;white-space:nowrap}.level-a1{background:#155e59;color:#fff}.level-a2{background:#237c7b;color:#fff}.level-a3{background:#438f89;color:#101d1b}.level-b1{background:#6a9d95;color:#10211d}.level-b2{background:#94b5ad;color:#172a24}.level-c{background:#c2d3ce;color:#293f36}.level-d{background:#e2e8f0;color:#374151}.template-level{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-top:10px}.template-level small{color:var(--muted);font-size:13px}.weight-label{font-size:13px;font-weight:600;color:var(--accent)}.assessment-weight{display:inline-block;margin-left:12px;color:var(--accent)}.level-guide{padding:16px 20px;margin:0 0 20px;border:1px solid var(--border);border-radius:12px;background:#fff}.level-guide summary{cursor:pointer;font-weight:600}.level-guide p{max-width:72ch;color:var(--muted);line-height:1.8}.library-stats span{font-size:14px;color:var(--muted);display:flex;align-items:center;gap:10px}.library-stats strong{font-size:26px;color:#2d3748;font-weight:650}.filters{background:#fff;border:1px solid var(--border);box-shadow:var(--shadow);border-radius:16px;padding:24px;margin-bottom:22px}.filter-search{display:flex;align-items:center;gap:12px;padding:0 16px;height:48px;background:#f7fafc;border:1px solid #e2e8f0;color:var(--muted);border-radius:10px;margin-bottom:22px;max-width:680px}.filter-search input{min-width:0;width:100%;height:100%;border:0;background:none;color:#354357;font-size:16px}.filter-search:focus-within{outline:2px solid var(--accent);outline-offset:3px}.filter-search input:focus-visible{outline:none}.filter-controls{display:flex;flex-wrap:wrap;align-items:end;gap:18px}.filter-controls label{display:flex;flex-direction:column;gap:9px;color:var(--muted);font-size:13px;flex:1;min-width:140px;max-width:280px}.filter-controls select{width:100%;min-width:0;padding:10px 12px;height:44px;background:#fff;color:#354357;font-size:15px;border:1px solid #dbe4eb;border-radius:10px;cursor:pointer}.reset-filters{min-height:44px;padding:10px 14px;background:#f7fafc;border-color:#e2e8f0;color:#526478;font-size:14px}.frequency-filters{display:flex;align-items:center;flex-wrap:wrap;gap:9px;font-size:14px;color:var(--muted);margin-bottom:24px}.frequency-filters>span{margin-right:8px}.frequency-filters small{margin-left:auto;font-size:12px}.frequency-chip{padding:8px 13px;background:#fff;border-color:#e2e8f0;font-size:13px;box-shadow:0 2px 4px #182b4605}.frequency-chip.active{background:var(--accent-soft);border-color:#9dccc8;color:var(--accent)}.results-heading{display:flex;justify-content:space-between;gap:12px;color:var(--muted);font-size:14px;margin-bottom:18px;scroll-margin-top:20px}.results-heading strong{color:var(--accent);margin:0 5px}.table-wrap{overflow-x:auto;border:1px solid var(--border);background:#fff;border-radius:16px;box-shadow:var(--shadow)}table{width:100%;border-collapse:collapse;text-align:left;font-size:14px}th{padding:18px 22px;font-size:13px;color:#63758a;font-weight:600;background:#fbfcfd;white-space:nowrap}td{padding:18px 22px;border-top:1px solid #edf2f7;color:var(--muted);line-height:1.6}td:first-child{width:70px}td:nth-child(2){min-width:190px;max-width:380px}td:nth-child(3){min-width:150px}td:last-child{width:100px}tr:hover td{background:#f8fbfc}.table-link{padding:4px 0;text-align:left;justify-content:flex-start;color:#354357;font-size:16px;line-height:1.65;font-weight:600}.table-link:hover{color:var(--accent)}.table-dot{display:block;width:16px;height:16px;border-radius:50%;border:1px solid #cbd5e1}.table-wrap .subtle-button{color:var(--accent);background:var(--accent-soft);font-size:13px;padding:8px 12px;white-space:nowrap}.exam-count{display:inline-flex;color:var(--accent);background:var(--accent-soft);font-size:12px;font-weight:600;padding:7px 10px;border-radius:9px}.exam-count.zero{color:var(--muted);background:#f1f5f9}.exam-count-cell{min-width:160px;max-width:270px}.table-type{display:block;font-size:12px;margin-top:7px}.occurrence-tags{display:flex;flex-wrap:wrap;gap:7px;margin-top:10px}.occurrence-tag{padding:6px 9px;background:#f7fafc;color:#5b7185;border-color:#e2e8f0;font-size:12px;white-space:nowrap;font-weight:500}.occurrence-tag:hover{background:var(--accent-soft);color:var(--accent)}.pagination{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:20px;padding:24px 0;color:var(--muted);font-size:14px}.pagination-info{display:flex;align-items:center;flex-wrap:wrap;gap:22px}.pagination-info label{display:flex;align-items:center;gap:8px}.pagination select{padding:8px 10px;background:#fff;border:1px solid #dbe4eb;border-radius:10px;color:#354357;font-size:14px}.pagination-buttons{display:flex;align-items:center;flex-wrap:wrap;gap:7px}.page-button{background:#fff;border-color:#e2e8f0;min-width:40px;min-height:40px;padding:8px 11px;font-size:14px;box-shadow:0 2px 4px #182b4605}.page-button.active{background:var(--accent);border-color:var(--accent);color:#fff}.page-ellipsis{padding:0 4px}.knowledge-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}.knowledge-card{padding:26px;border:1px solid var(--border);border-radius:16px;background:#fff;box-shadow:var(--shadow);transition:transform .2s ease-out,box-shadow .2s ease-out}.knowledge-card:hover{transform:translateY(-2px);box-shadow:0 8px 24px #182b460a}.knowledge-card h2{font-size:22px;line-height:1.5;margin:0 0 14px}.knowledge-card p{color:var(--muted);font-size:13px;overflow-wrap:anywhere;margin:0 0 20px}.knowledge-card>div,.tag-list{display:flex;flex-wrap:wrap;gap:10px}.tag{font-size:14px;line-height:1.6;padding:8px 12px;background:#f7fafc;color:#526478;border-color:#e2e8f0;font-weight:500;text-align:left}.tag:hover{background:var(--accent-soft);color:var(--accent)}@media(max-width:1100px){.knowledge-grid{grid-template-columns:1fr}.filter-controls label{max-width:none}}@media(max-width:700px){.filters{padding:18px}.filter-controls{gap:14px}.filter-controls label{min-width:120px}.filter-search input{font-size:15px}.reset-filters{flex:1}.library-stats{gap:20px;padding:20px;flex-wrap:wrap}.library-stats span{font-size:12px;gap:6px}.library-stats strong{font-size:22px}.frequency-filters small{display:none}.results-heading span+span{display:none}.pagination{justify-content:center}.pagination-info{width:100%;justify-content:space-between;gap:12px}.pagination-buttons{justify-content:center;gap:4px}.page-button{min-width:36px;font-size:13px;padding:8px}td,th{padding:16px}.knowledge-card{padding:22px}}.workspace-page{height:100dvh;overflow:hidden}.workspace-page .app-content{height:100%;display:flex;flex-direction:column}.workspace-page .header{flex-shrink:0;height:82px}.workspace-page .main{flex:1;min-height:0;display:flex;flex-direction:column;overflow:hidden;padding-top:0;padding-bottom:20px}.work-grid{flex:1;min-height:0;display:grid;grid-template-columns:minmax(0,var(--reading-width)) 18px minmax(0,1fr);grid-template-rows:minmax(0,1fr)}.work-grid.fullscreen{grid-template-columns:1fr}.panel{display:flex;flex-direction:column;min-width:0;min-height:0;max-height:100%;border:1px solid var(--border);border-radius:16px;background:#fff;box-shadow:var(--shadow);overflow:hidden}.tabbar,.editor-toolbar{flex-shrink:0;height:56px;display:flex;align-items:stretch;gap:22px;padding:0 22px;border-bottom:1px solid var(--border)}.tab{padding:0;position:relative;border-radius:8px;color:#64748b;font-size:14px;white-space:nowrap;font-weight:500}.tab.active{color:var(--accent);font-weight:600}.tab.active:after{content:"";position:absolute;height:2px;background:var(--accent);left:0;right:0;bottom:0;border-radius:2px}.tab:hover{color:var(--accent);transform:none}.reading-content{flex:1;min-height:0;overflow-y:auto;padding:26px 30px;scrollbar-width:thin}.title-line{display:flex;align-items:center;justify-content:space-between;gap:10px}.kind-badge{background:var(--accent-soft);color:var(--accent);padding:6px 10px;border-radius:9px;font-size:13px}.reading-content h1{font-size:28px;line-height:1.5;margin:18px 0 14px;overflow-wrap:anywhere}.reading-content h3{font-size:18px;margin:28px 0 14px}.problem-meta{display:flex;flex-wrap:wrap;gap:10px;font-size:13px;color:var(--muted);margin-bottom:26px}.exam-frequency-meta{padding:0;color:var(--accent);font-size:13px}.problem-copy,.requirements{font-size:17px;line-height:1.95;color:#465467;white-space:pre-wrap;overflow-wrap:anywhere;max-width:72ch}.problem-copy p{margin:0 0 18px}.requirements{padding-left:22px;white-space:normal}.requirements li{margin:8px 0}.related-template{width:100%;padding:18px 0;border-top:1px solid var(--border);border-radius:10px;margin-top:22px;text-align:left;justify-content:space-between;font-size:13px}.related-template>span{display:flex;align-items:center;gap:12px;color:var(--muted)}.related-template strong{display:block;color:var(--accent);margin-top:6px;font-size:15px;overflow-wrap:anywhere}.source-note{display:flex;align-items:flex-start;gap:9px;font-size:12px;color:var(--muted);line-height:1.85;margin-top:28px;overflow-wrap:anywhere}.source-note svg{flex-shrink:0;margin-top:4px}.reading-footer{flex-shrink:0;min-height:58px;border-top:1px solid var(--border);display:flex;align-items:center;justify-content:space-between;gap:8px;padding:8px 18px;color:var(--muted);font-size:12px}.reading-footer>span{display:flex;align-items:center;gap:6px}.resizer{cursor:col-resize;border-radius:8px;display:grid;place-items:center;touch-action:none}.resizer i{width:3px;height:28px;border-radius:4px;background:#d3dfe5}.resizer:hover i{background:var(--accent)}.editor-toolbar{justify-content:space-between;gap:10px;padding:0 18px}.editor-toolbar>div:first-child{display:flex;gap:20px}.editor-tools{display:flex;align-items:center;gap:6px}.language{padding:4px 9px;font-size:12px;background:#f7fafc;border-radius:8px;color:#526478}.mode-row{flex-shrink:0;display:flex;align-items:center;justify-content:space-between;padding:0 20px;gap:12px;height:44px;color:var(--muted);font-size:12px}.mode-row>span{display:flex;align-items:center;gap:8px}.blue-dot{width:6px;height:6px;border-radius:50%;background:var(--accent)}.mode-row select{font-size:12px;border:0;border-radius:8px;padding:7px;background:#f7fafc;color:#526478}.editor-container{flex:1 1 0;min-height:0;overflow:hidden}.editor-status{flex-shrink:0;height:30px;display:flex;align-items:center;justify-content:space-between;padding:0 16px;border-top:1px solid #f1f5f9;font-size:11px;color:var(--muted);gap:8px}.editor-status>span{display:flex;align-items:center;gap:6px}.console{flex-shrink:0;border-top:1px solid var(--border)}.console-header{display:flex;align-items:center;justify-content:space-between;background:#fbfcfd;border-bottom:1px solid var(--border);padding-right:10px;gap:6px}.console-header .tabbar{flex:1;min-width:0;height:46px;border-bottom:0;padding:0 18px;gap:18px}.small-tabs .tab{font-size:13px}.console-content{height:clamp(64px,17dvh,150px);min-height:0;overflow:auto;padding:14px 20px;font-size:13px;color:var(--muted);overflow-wrap:anywhere}.console-content[hidden]{display:none}.console-content p{margin:10px 0;line-height:1.8}.service-status{display:flex;align-items:center;gap:8px;font-size:12px}.status-dot{width:6px;height:6px;border-radius:50%;background:#b7791f}.status-dot.connected{background:#15803d}.case-list{display:flex;gap:6px;flex-wrap:wrap}.case-list span{padding:4px 8px;border-radius:8px;background:#edf2f7;font-size:12px}.test-provided{font-size:12px}.verdict{display:flex;justify-content:space-between;gap:12px;font-weight:600;color:#354357}.accepted .verdict{color:#15803d}.failed .verdict,.compile_error .verdict{color:#b91c1c}.judge-result details{border:1px solid #e2e8f0;border-radius:9px;padding:8px 10px;margin:8px 0}.judge-result summary{cursor:pointer;font-size:12px;line-height:1.8}.judge-result summary small{float:right}.case-diff{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:10px;font-size:12px}.case-diff pre,.compiler-log{white-space:pre-wrap;overflow-wrap:anywhere;font:12px/1.7 Consolas,monospace;color:#465467;background:#f7fafc;padding:10px;border-radius:8px;max-height:230px;overflow:auto}.history-list>div{display:flex;justify-content:space-between;flex-wrap:wrap;gap:8px;padding:9px 0;border-bottom:1px solid var(--border)}.history-list small{font-size:11px}.submission-empty{display:flex;align-items:center;flex-direction:column;gap:8px}.submission-empty small{font-size:12px}.runbar{flex-shrink:0;min-height:66px;display:flex;align-items:center;justify-content:space-between;padding:10px 18px;border-top:1px solid var(--border);gap:12px}.runbar>div{display:flex;gap:10px}.shortcut{display:flex;gap:6px;align-items:center;color:var(--muted);font-size:12px}.bookmarked{color:var(--accent)}.reference-code{font-family:var(--code-font);font-size:16px;line-height:1.8;font-variant-ligatures:none;tab-size:4;padding:20px;background:#f7fafc;border-radius:10px;overflow:auto;white-space:pre-wrap;overflow-wrap:anywhere;color:#354357}.reference-code code{font:inherit}.exam-answer>h3:first-child{margin-top:24px}.answer-parts{display:grid;gap:16px}.answer-part-label{display:block;margin-bottom:8px;font-size:15px;font-weight:600;color:var(--muted)}.answer-part .reference-code{margin:0;padding:12px 16px}.answer-part p,.answer-text p,.answer-steps{font-size:17px;line-height:1.8;max-width:72ch}.answer-part p{margin:0}.answer-steps{padding-left:24px}.answer-steps li+li{margin-top:8px}.answer-complexity{display:grid;gap:10px;font-size:16px}.answer-complexity>div{display:grid;grid-template-columns:42px minmax(0,1fr);gap:12px}.answer-complexity dt{color:var(--muted)}.answer-complexity dd{margin:0}.answer-note{color:var(--muted);font-size:14px;line-height:1.8}.info-note{padding:14px;background:var(--accent-soft);color:var(--accent);border-radius:10px;font-size:13px;line-height:1.8}.hint-heading{display:flex;align-items:center;gap:10px;color:var(--accent);margin-top:26px}.hint-heading h3{margin:0}.knowledge-row{display:flex;width:100%;justify-content:flex-start;text-align:left;padding:14px 4px;line-height:1.8;color:#526478;font-size:15px;border-bottom:1px solid #edf2f7;margin-bottom:4px}.knowledge-row svg:last-child{margin-left:auto}.work-exam-links{padding:14px 0;border-top:1px solid #edf2f7;border-bottom:1px solid #edf2f7;margin-bottom:24px}.work-exam-links strong{font-size:13px;color:var(--muted);font-weight:500}.work-exam-links .occurrence-tag{font-size:13px}.exam-adaptation,.unmapped-note{font-size:13px;line-height:1.9;color:var(--muted);margin-top:16px}.original-source{margin-top:22px;border:1px solid #e2e8f0;border-radius:10px;padding:12px}.original-source summary{cursor:pointer;color:var(--accent);font-size:14px;line-height:1.8}.original-source img{width:100%;height:auto;display:block;margin-top:14px;border-radius:10px}.written-answer{width:100%;min-height:150px;padding:14px;font-size:15px;line-height:1.8;resize:vertical;border:1px solid #dbe4eb;border-radius:10px;color:#354357;background:#fafcfd}.exam-explanation p{font-size:16px;line-height:1.95;white-space:pre-wrap;color:#465467}.exam-explanation small{font-size:12px}.mobile-tabs{display:none}@media(max-width:1100px){.reading-content{padding:24px}.tabbar{padding:0 18px;gap:16px}.tab{font-size:13px}.editor-toolbar{padding:0 14px}.editor-toolbar>div:first-child{gap:14px}.reading-footer>span,.shortcut{display:none}}@media(max-width:800px){.workspace-page .header{height:76px}.workspace-page .main{padding:0 12px 12px}.work-grid{display:flex}.panel{display:none;width:100%}.panel.mobile-visible,.fullscreen .coding-panel{display:flex}.resizer{display:none}.mobile-tabs{display:flex;flex-shrink:0;gap:8px;margin-bottom:12px}.mobile-tabs button{flex:1;background:#fff;border-color:var(--border);padding:10px;font-size:15px}.mobile-tabs button.active{background:var(--accent-soft);border-color:#9dccc8;color:var(--accent)}.reading-content{padding:22px}.reading-content h1{font-size:25px}.problem-copy,.requirements{font-size:16px}.reading-footer{justify-content:flex-end}.console-header .tabbar{gap:14px;padding:0 12px}.console-content{height:clamp(64px,16dvh,130px)}.editor-tools{gap:2px}.editor-toolbar .tab{font-size:13px}.editor-status{font-size:10px}}@media(max-height:650px){.workspace-page .header{height:64px}.workspace-page .editor-toolbar,.workspace-page .tabbar{height:44px}.workspace-page .mode-row{height:36px}.workspace-page .editor-status{height:24px}.workspace-page .runbar,.workspace-page .reading-footer{min-height:54px}.workspace-page .console-content{height:64px;padding:10px 18px}}.ai-fab{position:fixed;right:26px;bottom:88px;z-index:1090;border:0;border-radius:999px;padding:12px 18px;background:var(--accent);color:#fff;font-weight:600;box-shadow:0 6px 18px #1d818044;cursor:pointer}.ai-selection-action{position:fixed;z-index:1100;border:0;border-radius:8px;padding:8px 12px;background:var(--accent);color:#fff;font-weight:600;box-shadow:0 4px 14px #1d818044;cursor:pointer}.ai-ask-panel{position:fixed;right:24px;bottom:24px;z-index:1100;width:min(430px,calc(100vw - 32px));max-height:min(620px,calc(100vh - 32px));display:flex;flex-direction:column;gap:12px;padding:18px;background:#fff;border:1px solid var(--border);border-radius:16px;box-shadow:0 12px 36px #1d334426}.ai-ask-panel header{display:flex;align-items:center;justify-content:space-between}.ai-ask-panel header span{display:flex;align-items:center;gap:8px;color:var(--accent);font-weight:600}.ai-ask-selected{max-height:100px;overflow:auto;margin:0;padding:10px 12px;background:#f4f8fb;border-radius:10px;color:var(--muted);font-size:13px;line-height:1.6}.ai-ask-panel textarea{width:100%;min-height:72px;resize:vertical;border:1px solid var(--border);border-radius:10px;padding:10px;font:inherit}.ai-ask-actions{display:flex;justify-content:flex-end;gap:8px}.ai-ask-empty{margin:0;padding:12px;background:#fff8e9;border-radius:10px;color:#765c2c}.ai-ask-history{overflow:auto;min-height:0;max-height:340px;display:flex;flex-direction:column;gap:10px}.ai-ask-history article{padding:12px;border:1px solid var(--border);border-radius:10px;color:#33495f;line-height:1.7;white-space:pre-wrap}.ai-ask-history article p{margin:6px 0 0}.ai-ask-record-head{display:flex;justify-content:space-between;gap:8px;align-items:flex-start}.ai-ask-record-selection{color:var(--muted);font-size:12px}.ai-ask-answer{overflow:auto;border-top:1px solid var(--border);padding-top:12px;color:#33495f;line-height:1.75;white-space:pre-wrap}.ai-ask-answer p{margin:6px 0 0}@media(max-width:650px){.ai-ask-panel{right:12px;bottom:12px}}.account-panel{padding:28px;max-width:760px;margin:20px auto}.account-panel h1,.account-panel h2{margin-top:0}.account-panel form{display:grid;gap:20px;max-width:480px}.account-panel label,.account-filters label{display:grid;gap:8px;font-weight:500}.account-panel input,.account-panel textarea,.account-filters input,.account-filters select{font:inherit;border:1px solid #dce4ec;border-radius:10px;padding:12px;background:#fff;color:#28384d;min-width:0}.account-panel textarea{min-height:100px}.account-actions{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin:18px 0}.account-panel table{width:100%;margin-top:24px;border-collapse:collapse;text-align:left}.account-panel th,.account-panel td{padding:14px;border-bottom:1px solid #e5ecf1}.account-modal{position:fixed;inset:0;background:#22304466;z-index:1000;display:grid;place-items:center;padding:20px;overflow:auto}.account-modal .account-panel{width:min(100%,660px);background:#fff;max-height:90vh;overflow:auto}.account-filters{padding:24px;display:grid;grid-template-columns:2fr repeat(4,1fr);gap:16px;margin-bottom:24px}.snippet-list{display:grid;gap:20px}.snippet{padding:24px}.snippet h2{font-size:21px;margin:0}.snippet pre{overflow:auto;font-family:var(--code-font);background:#f7fafc;padding:20px;border-radius:12px;max-height:500px}.snippet summary{cursor:pointer;padding:14px 0;font-weight:600}.account-panel :focus-visible,.account-filters :focus-visible,.snippet :focus-visible{outline:2px solid #319795;outline-offset:2px}.avatar{max-width:150px;width:auto;padding:10px 16px}@media(max-width:1000px){.account-filters{grid-template-columns:1fr 1fr}}@media(max-width:600px){.account-filters{grid-template-columns:1fr}.account-panel{padding:20px}.account-panel table{font-size:14px}}.login-page{min-height:100dvh;background:#f5f9fb;display:grid;place-items:center;padding:48px 28px;color:#27364b}.login-shell{width:min(1080px,100%);display:grid;grid-template-columns:1.1fr 1fr;gap:80px;align-items:center}.login-brand{display:flex;align-items:center;gap:12px;color:#227e80;font-size:23px;margin-bottom:48px}.login-intro h1{font-size:clamp(30px,3.2vw,44px);line-height:1.5;margin:0 0 20px;letter-spacing:-1px}.login-intro>p{font-size:18px;line-height:1.8;color:#64758c;max-width:440px}.login-topics{display:grid;grid-template-columns:1fr 1fr;gap:28px 18px;margin-top:36px}.login-topics>div{display:flex;gap:12px;align-items:flex-start}.login-topics svg{color:#238789;margin-top:4px;flex-shrink:0}.login-topics strong{display:block;font-size:17px}.login-topics small{display:block;font-size:14px;color:#6a7a90;margin-top:5px}.login-form-panel{background:#fff;border:1px solid #e4ebf1;border-radius:24px;padding:44px 40px;box-shadow:0 12px 36px #29415a08}.login-form-panel h2{font-size:28px;margin:0 0 12px}.login-form-panel>p{color:#6a7a90;font-size:16px}.login-form-panel form{display:flex;flex-direction:column;gap:12px;margin-top:32px}.login-form-panel label{font-size:16px;font-weight:600}.login-form-panel input{font:inherit;font-size:17px;min-height:54px;padding:14px 16px;border:1px solid #d9e3eb;border-radius:12px;background:#fafcfd;color:#27364b;margin-bottom:8px;width:100%;box-sizing:border-box}.login-form-panel input:focus-visible{outline:2px solid #238789;outline-offset:2px}.login-note{font-size:14px;color:#65788a;line-height:1.7;margin:0 0 12px}.login-form-panel .primary{justify-content:center;min-height:54px;font-size:17px;border-radius:12px}.login-help{margin-top:28px;text-align:center;font-size:14px!important}.login-error{color:#a12e38;font-size:15px;margin:0 0 10px;line-height:1.6}@media(max-width:800px){.login-shell{grid-template-columns:1fr;max-width:460px;gap:28px}.login-brand{margin-bottom:20px}.login-intro h1{font-size:28px}.login-intro>p,.login-topics{display:none}.login-form-panel{padding:32px 24px}.login-page{padding:28px 20px;align-items:start}}.question-bookmark{white-space:nowrap;gap:7px;font-size:15px;min-height:40px}.favorite-row-actions{display:flex;align-items:center;justify-content:flex-end;flex-wrap:nowrap;gap:10px;white-space:nowrap}.favorites-page td:last-child,.favorites-page th:last-child{width:152px;min-width:152px;text-align:right}.favorite-row-actions .primary{min-height:40px;padding:8px 16px;flex-shrink:0}.favorite-row-actions .favorite-remove{width:40px;height:40px;flex:0 0 40px;border:1px solid var(--border);border-radius:10px;color:var(--accent);background:#f7fafc;box-shadow:var(--shadow)}.favorite-row-actions .favorite-remove:hover{background:var(--accent-soft)}.favorites-filters .secondary{align-self:end;justify-self:start}.favorite-cancelled{display:block;font-size:13px;color:#7a8594;margin-top:6px}.simulation-layout{display:grid;grid-template-columns:minmax(0,1fr);gap:24px;align-items:start}.simulation-settings,.simulation-basis{padding:28px}.simulation-settings h2,.simulation-basis h2{font-size:22px;margin:0 0 24px}.simulation-fields{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px 16px}.simulation-fields label{display:flex;flex-direction:column;gap:9px;font-weight:500}.simulation-fields input,.simulation-fields select,.simulation-fields textarea,.simulation-history-filters input,.simulation-history-filters select{width:100%;min-width:0;font:inherit;border:1px solid #dce4ec;border-radius:10px;padding:12px;background:#fff;color:#28384d}.simulation-fields textarea{min-height:92px;resize:vertical}.simulation-wide{grid-column:1/-1}.simulation-checkbox{display:flex;align-items:center;gap:10px;margin:20px 0;font-weight:500;cursor:pointer}.simulation-checkbox input{width:18px;height:18px;accent-color:var(--accent)}.simulation-generate{display:flex;align-items:center;gap:16px;flex-wrap:wrap;margin-top:24px}.simulation-generate>span{font-size:14px;color:var(--muted)}.simulation-basis h3{font-size:16px;margin:24px 0 12px}.simulation-basis a{display:flex;flex-direction:column;gap:5px;padding:13px 0;border-bottom:1px solid var(--border);font-size:16px;line-height:1.65;color:#32465a}.simulation-basis a span{font-size:14px;color:var(--muted)}.simulation-basis p{font-size:14px;line-height:1.8}.simulation-history{margin-top:36px}.simulation-history-filters{display:grid;grid-template-columns:2fr 1fr 1fr;align-items:center;gap:16px;margin:20px 0}.generation-verification{font-size:14px;color:#856032;line-height:1.7}.simulation-page :is(input,textarea,select):focus-visible{outline:2px solid var(--accent);outline-offset:2px}.simulation-history td:last-child{min-width:145px}.simulation-history .pagination-info label{display:none}@media(max-width:1100px){.simulation-layout{grid-template-columns:1fr}.simulation-basis{display:block}}@media(max-width:650px){.simulation-settings,.simulation-basis{padding:20px}.simulation-fields{grid-template-columns:1fr 1fr}.simulation-history-filters{grid-template-columns:1fr}.simulation-history-filters .simulation-checkbox{margin:0}}.simulation-simple-fields{grid-template-columns:1fr 1fr;gap:22px}.simulation-simple-fields select{min-height:52px;font-size:17px}.simulation-defaults{margin:22px 0 0;color:var(--muted);font-size:14px;line-height:1.8}.simulation-basis-heading{display:flex;align-items:center;justify-content:space-between;gap:12px}.simulation-basis-heading h2{margin-bottom:0}.simulation-basis-heading button{white-space:nowrap;font-size:14px}.simulation-plan-summary{color:var(--accent);margin:20px 0 0!important;font-weight:500}.simulation-syllabus{margin-top:24px}.simulation-syllabus summary{cursor:pointer;line-height:1.7;font-size:14px;font-weight:500}.simulation-syllabus p{margin:12px 0}.simulation-simple-fields input{min-height:52px;font-size:17px}.simulation-range-help{font-size:13px;color:var(--muted);font-weight:400;line-height:1.7}.topic-picker-trigger{display:flex;align-items:center;justify-content:space-between;width:100%;min-height:52px;gap:14px;padding:12px 16px;border:1px solid #dce4ec;border-radius:10px;background:#fff;color:#28384d;font-size:17px;text-align:left;font-weight:400;box-shadow:0 1px 2px #28384d08}.topic-picker-trigger span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.topic-picker-trigger svg{flex-shrink:0;color:var(--muted)}.topic-picker-backdrop{position:fixed;inset:0;background:#22304466;z-index:1000;display:grid;place-items:center;padding:24px}.topic-picker-dialog{width:min(820px,100%);max-height:88dvh;background:#fff;border:1px solid var(--border);border-radius:20px;box-shadow:0 12px 36px #243c551a;display:flex;flex-direction:column;overflow:hidden}.topic-picker-heading{display:flex;align-items:flex-start;justify-content:space-between;padding:24px 28px 18px;gap:20px}.topic-picker-heading h2{margin:0;font-size:24px}.topic-picker-heading p{margin:8px 0 0;color:var(--muted);font-size:14px}.topic-picker-filters{display:grid;grid-template-columns:2fr 1fr 1fr;gap:14px;padding:0 28px 18px;align-items:end}.topic-picker-filters label{display:flex;flex-direction:column;gap:7px;font-size:14px;font-weight:500}.topic-picker-filters input,.topic-picker-filters select{width:100%;min-width:0;border:1px solid #dce4ec;border-radius:10px;padding:11px;font:inherit;font-size:16px;color:#28384d;background:#fff}.topic-picker-search{position:relative}.topic-picker-search svg{position:absolute;left:12px;top:14px;color:var(--muted)}.topic-picker-search input{padding-left:38px;min-height:46px}.topic-picker-count{padding:0 28px 12px;font-size:14px;color:var(--muted)}.topic-picker-results{min-height:150px;overflow-y:auto;overscroll-behavior:contain;padding:0 16px;flex:1}.topic-picker-results ul{list-style:none;padding:0;margin:0}.topic-picker-option{display:flex;align-items:center;gap:16px;padding:16px 12px;border-radius:10px;width:100%;text-align:left;background:#fff;border:0;border-bottom:1px solid #edf2f6;color:#293b50;box-shadow:none;transform:none!important}.topic-picker-option>span:first-child{flex:1;min-width:0}.topic-picker-option strong{display:block;font-size:17px;font-weight:600}.topic-picker-option small{display:block;font-size:14px;line-height:1.7;color:var(--muted);margin-top:5px}.topic-picker-option:hover,.topic-picker-option.selected{background:#edf8f7}.topic-picker-option>svg{color:var(--accent);flex-shrink:0}.topic-picker-option .level-badge{white-space:nowrap;font-size:13px;min-width:42px;justify-content:center}.topic-picker-footer{display:flex;justify-content:flex-end;gap:12px;padding:18px 28px;border-top:1px solid var(--border)}.topic-picker-dialog :is(button,input,select):focus-visible{outline:2px solid var(--accent);outline-offset:2px}@media(max-width:600px){.topic-picker-backdrop{padding:12px}.topic-picker-heading{padding:20px}.topic-picker-filters{padding:0 20px 16px;grid-template-columns:1fr 1fr}.topic-picker-search{grid-column:1/-1}.topic-picker-count{padding-left:20px}.topic-picker-results{padding:0 8px}.topic-picker-footer{padding:16px 20px}.topic-picker-option{gap:10px}}.simulation-grade-field{grid-column:1 / -1;display:flex;flex-direction:column;gap:10px;font-weight:500}.simulation-grade-heading,.simulation-grade-tools,.basis-dialog-actions,.simulation-page-links{display:flex;align-items:center;gap:16px}.simulation-grade-heading{justify-content:space-between}.simulation-grade-heading button,.simulation-grade-tools button{font-size:14px}.simulation-grade-ranges{display:grid;gap:12px}.simulation-grade-row{display:flex;align-items:center;gap:12px}.simulation-grade-row select{flex:1;width:0}.simulation-grade-row .icon-button{flex:0 0 36px;width:36px;height:36px}.simulation-grade-tools small{color:var(--muted);font-weight:400;font-size:13px}.simulation-preview-strip{display:flex;justify-content:space-between;align-items:center;gap:20px;border-top:1px solid var(--border);margin-top:20px;padding-top:20px}.simulation-preview-strip>div:first-child{display:flex;flex-direction:column;gap:8px;min-width:0}.simulation-preview-strip strong{font-size:14px;color:var(--muted)}.simulation-preview-topics{font-size:18px;font-weight:600;line-height:1.5}.simulation-preview-strip small{font-size:14px;color:var(--muted)}.simulation-preview-actions{display:flex;gap:12px;flex-shrink:0}.simulation-preview-actions button,.basis-dialog-actions button{white-space:nowrap}.topic-picker-heading{flex-shrink:0}.basis-dialog-content{padding:0 28px 24px;min-height:0;overflow-y:auto;overscroll-behavior:contain;scrollbar-gutter:stable;flex:1}.basis-dialog-content::-webkit-scrollbar{width:9px}.basis-dialog-content::-webkit-scrollbar-thumb{background:#aab8c4;border-radius:8px}.simulation-history{margin-top:0}@media(min-width:1200px){.simulation-simple-fields{grid-template-columns:1fr 1fr 1fr}.simulation-grade-field{grid-column:1 / -1}}@media(max-width:650px){.simulation-simple-fields{grid-template-columns:1fr;gap:18px}.simulation-preview-strip{align-items:flex-start;flex-direction:column;gap:16px}.simulation-grade-tools{align-items:flex-start;flex-direction:column;gap:8px}.simulation-page-links{flex-wrap:wrap;gap:12px}.basis-dialog-content{padding:0 20px 20px}.basis-dialog-actions{gap:8px}.basis-dialog-actions .subtle-button{padding:8px;font-size:14px}}.simulation-history-table{table-layout:fixed;width:100%;min-width:700px}.simulation-history-table .history-title-column{width:40%}.simulation-history-table .history-topic-column{width:18%}.simulation-history-table .history-status-column{width:20%}.simulation-history-table .history-actions-column{width:22%}.simulation-history-table td:first-child .table-link{width:100%;white-space:normal;overflow-wrap:anywhere;text-align:left;line-height:1.6}.simulation-history-table th,.simulation-history-table td{padding:20px 16px}.simulation-history-table .generation-verification{white-space:normal}.simulation-history-table td:last-child{min-width:0}.simulation-history-table .favorite-row-actions{gap:8px}.simulation-history-table .favorite-row-actions .primary{padding:10px 14px}.simulation-preview-actions{flex-wrap:wrap;justify-content:flex-end}.simulation-progress{display:flex;gap:20px;align-items:center;flex-wrap:wrap;margin-top:20px;padding:16px;background:#edf8f7;border-radius:12px}.simulation-progress span{color:var(--accent);font-weight:500;font-variant-numeric:tabular-nums}.simulation-prompt-section pre{font:14px/1.8 Consolas,monospace;white-space:pre-wrap;overflow-wrap:anywhere;background:#f5f8fb;padding:18px;border-radius:12px}@media(max-width:650px){.simulation-preview-actions{justify-content:flex-start}}.simulation-history-table td{width:auto;min-width:0;max-width:none}.simulation-delete-actions{display:flex;justify-content:flex-end;gap:12px;margin:24px 0 8px}.shared-simulation-page{min-height:70vh;display:grid;place-items:center;padding:24px 0}.shared-simulation-card{width:min(620px,100%);padding:36px}.shared-simulation-card h1{margin:20px 0 12px;font-size:30px}.shared-simulation-card p{color:var(--muted);line-height:1.8}.shared-simulation-note{margin:24px 0;padding:16px;background:#f4f8fb;border-radius:12px}.guided-tour{position:fixed;inset:0;z-index:1200;isolation:isolate}.tour-shade{position:absolute;background:#1b2a3a8f}.tour-spotlight{position:absolute;border-radius:12px;outline:3px solid #51b6b1;outline-offset:2px;background:transparent}.tour-card{position:absolute;background:#fff;border:1px solid #dce7ed;border-radius:16px;box-shadow:0 8px 28px #16293a26;padding:18px;display:flex;flex-direction:column}.tour-card header{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-shrink:0}.tour-card header>span{display:flex;align-items:center;gap:8px;color:var(--accent);font-size:14px;font-weight:600}.tour-card header .icon-button{width:34px;height:34px}.tour-copy{overflow-y:auto;min-height:0;flex:1}.tour-card h2{font-size:21px;line-height:1.5;margin:12px 0 8px;color:#28384d}.tour-card p{font-size:16px;line-height:1.8;margin:0 0 20px;color:#4c6176}.tour-card footer{display:flex;align-items:center;justify-content:space-between;gap:8px;flex-shrink:0}.tour-card footer>div{display:flex;gap:8px}.tour-card footer button{padding:9px 10px;font-size:14px;white-space:nowrap}.tour-card button:focus-visible{outline:2px solid var(--accent);outline-offset:2px}.page-heading-actions{display:flex;align-items:center;gap:16px;flex-wrap:wrap}@media(max-width:400px){.tour-card{padding:14px}.tour-card footer button{padding:8px;font-size:13px}}