:root{font-family:Inter,Segoe UI,Microsoft YaHei,PingFang SC,sans-serif;color:#172033;background:#f6f8fa;font-synthesis:none;font-size:14px;line-height:1.55;font-weight:400;--green:#1e5c49;--light-green:#e9f5ef;--muted:#69758a;--line:#dfe6ed;--surface:#fff}*{box-sizing:border-box}body{margin:0}button,input,select,textarea{font:inherit}button,a,input,select,textarea{-webkit-tap-highlight-color:transparent}button{cursor:pointer}button:disabled{cursor:not-allowed;opacity:.5}button:focus-visible,a:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible{outline:3px solid #89baa7;outline-offset:3px}button{color:inherit}a{color:var(--green)}h1,h2,h3,p{margin:0}h1{font-size:30px;line-height:1.3;letter-spacing:-.6px;font-weight:720}h2{font-size:20px;line-height:1.4;font-weight:680}h3{font-size:16px}input,textarea,select{border:1px solid #cfd9e3;border-radius:5px;background:#fff;color:#172033;padding:10px 12px;min-width:0}textarea{resize:vertical;line-height:1.6}input::placeholder,textarea::placeholder{color:#8c96a6}label{display:flex;flex-direction:column;gap:7px;font-weight:550}code{font-family:Cascadia Code,Consolas,monospace;font-size:13px}button svg{flex-shrink:0}svg{vertical-align:middle}button{border:0;background:none}.button{display:inline-flex;justify-content:center;align-items:center;gap:8px;border:1px solid #cbd5df;border-radius:5px;background:#fff;padding:9px 15px;min-height:39px;font-size:14px;font-weight:550;white-space:nowrap;transition:background .15s,border-color .15s}.button:hover{background:#f5f8fa;border-color:#a3b6c5}.button.primary{background:var(--green);border-color:var(--green);color:#fff}.button.primary:hover{background:#174b3b}.button.small{padding:6px 10px;min-height:32px;font-size:13px}.button.full{width:100%}.icon-button{display:inline-flex;align-items:center;justify-content:center;border-radius:5px;padding:7px;color:var(--muted)}.icon-button:hover{background:#ecf0f4;color:#172033}.text-button{display:inline-flex;align-items:center;gap:6px;color:var(--green);font-size:13px;padding:8px 0;white-space:nowrap}.text-button:hover{text-decoration:underline}.subtle{color:var(--muted);font-size:13px;margin:12px 0}.form-error{color:#a9362a;background:#fff1ed;border:1px solid #f0cdc4;padding:10px;border-radius:5px}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.app-shell{min-height:100vh}.sidebar{position:fixed;inset:0 auto 0 0;width:224px;background:#fff;border-right:1px solid var(--line);display:flex;flex-direction:column;padding:24px 12px 16px;z-index:30}.brand{display:flex;align-items:center;gap:10px;font-size:22px;font-weight:730;letter-spacing:-.7px;white-space:nowrap}.brand svg{width:30px;height:30px;color:var(--green);stroke-width:1.8}.sidebar>.brand{padding:0 10px 27px}.primary-nav{display:flex;flex-direction:column;gap:7px}.primary-nav button,.course-list>button{display:flex;align-items:center;gap:13px;padding:11px 14px;text-align:left;border-radius:5px;font-size:15px}.primary-nav button:hover,.course-list>button:hover{background:#f5f8f7}.primary-nav .active,.course-list>.active{background:var(--light-green);color:var(--green);font-weight:600}.course-list{border-top:1px solid var(--line);margin-top:25px;padding-top:15px;overflow:auto}.sidebar-section-title{padding:0 10px 6px;display:flex;justify-content:space-between;align-items:center;color:var(--muted);font-size:13px;font-weight:600}.course-list>button{width:100%;gap:12px;font-size:14px;margin:3px 0}.course-list>button span{overflow:hidden;text-overflow:ellipsis}.sidebar-empty{padding:10px;color:var(--muted);font-size:13px}.account{display:flex;align-items:center;gap:10px;margin-top:auto;padding:22px 8px 0}.avatar{width:37px;height:37px;border-radius:50%;display:grid;place-items:center;background:#c3ded5;color:#203b32;font-size:16px;font-weight:650}.account>div{display:flex;flex-direction:column;flex:1;min-width:0}.account strong{font-size:14px;font-weight:550}.account small{color:var(--muted);font-size:11px;overflow:hidden;text-overflow:ellipsis}.main-shell{margin-left:224px}.topbar{position:relative;z-index:20;min-height:66px;padding:10px 28px;display:flex;justify-content:space-between;align-items:center;gap:20px}.breadcrumb{display:flex;align-items:center;gap:11px;color:var(--muted);font-size:13px;min-width:0}.breadcrumb span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.top-actions{display:flex;align-items:center;gap:12px;flex-shrink:0}.content{padding:6px 28px 30px;max-width:1900px;margin:auto}.page-heading{display:flex;justify-content:space-between;align-items:center;gap:20px;margin-bottom:17px}.page-heading p{font-size:16px;color:var(--muted);margin-top:5px}.demo-notice{display:flex;align-items:center;gap:12px;padding:11px 15px;background:#fff7e4;border:1px solid #f0d99d;border-radius:5px;color:#83570e;margin:0 0 16px;font-size:14px}.demo-notice svg{color:#ad7919;flex-shrink:0}.classroom-toolbar{display:flex;justify-content:space-between;align-items:center;padding:8px;border:1px solid var(--line);border-radius:5px;margin-bottom:12px;gap:12px;background:#fafbfd}.select-group,.toolbar-actions{display:flex;align-items:center;gap:12px;min-width:0}.select-group label{position:relative;min-width:0}.select-group select{padding:7px 30px 7px 11px;-webkit-appearance:none;-moz-appearance:none;appearance:none;font-size:13px;max-width:240px;height:35px}.select-group label>svg{position:absolute;right:9px;top:10px;pointer-events:none;color:var(--muted)}.job-status{display:flex;align-items:center;gap:7px;font-size:13px;color:var(--muted);white-space:nowrap}.job-status.succeeded{color:var(--green);font-weight:600}.job-status.failed{color:#a73e2a}.job-status.running{color:#936519}.panel{background:var(--surface);border:1px solid var(--line);border-radius:6px}.panel-heading{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:14px;min-height:32px}.editor-grid{display:grid;grid-template-columns:minmax(0,1.22fr) minmax(0,1fr);gap:16px;align-items:stretch}.source-panel,.result-panel{padding:15px;min-width:0}.zoom-controls{display:flex;align-items:center;gap:0;border:1px solid var(--line);border-radius:5px;background:#f8fafc;height:34px}.zoom-controls>span{font-size:12px;min-width:40px;text-align:center}.zoom-controls button{display:flex;align-items:center;gap:5px;padding:7px;font-size:12px}.zoom-controls button:last-child{border-left:1px solid var(--line);padding:7px 9px}.image-scroll{overflow:auto;border-radius:4px;background:#eaf0ed;max-height:660px;min-height:300px}.image-stage{position:relative;min-width:100%;margin:auto}.image-stage img{width:100%;height:auto;display:block}.source-overlay{position:absolute;top:0;right:0;bottom:0;left:0;width:100%;height:100%;overflow:visible}.region{fill:transparent;stroke:transparent;stroke-width:2.5;vector-effect:non-scaling-stroke;cursor:move;touch-action:none}.region-actions{position:absolute;display:flex;align-items:center;gap:6px;padding:2px 5px;background:#fffffff5;border:1px solid #cfe6db;border-radius:6px;box-shadow:0 4px 14px #1e5c4938;z-index:20;white-space:nowrap}.region-moved{font-size:12px;color:#28513c}.region-actions .button.small{padding:1px 7px;font-size:11px}.blackboard-move-actions{position:absolute;left:2px;bottom:2px;display:flex;align-items:center;gap:4px;z-index:6}.blackboard-move-actions .button.small{padding:1px 7px;font-size:11px}.blackboard-moved-tag{font-size:10px;color:#28513c;background:#ffffffeb;border-radius:4px;padding:1px 5px;box-shadow:0 1px 4px #00000026}.region:hover{fill:#77c69c16;stroke:#75b88d}.region.selected{fill:#77c69c0e;stroke:#6bcc8b}.region:focus-visible{outline:none;stroke:#f7d889;stroke-width:4}.panel-caption{font-size:12px;line-height:1.55;color:var(--muted);margin:12px 0 0}.version-label{font-size:13px;color:#45536a;border:1px solid var(--line);border-radius:4px;padding:6px 10px}.result-blocks{display:flex;flex-direction:column;gap:10px}.result-block{display:block;width:100%;text-align:left;border:1px solid var(--line);border-radius:5px;padding:12px 14px;min-width:0;transition:border-color .15s}.result-block:hover{border-color:#a0c2b2}.result-block.selected{border-color:var(--green);box-shadow:inset 0 0 0 .5px var(--green)}.block-meta{display:flex;align-items:center;gap:12px;font-size:11px;color:var(--muted);margin-bottom:7px}.quality{display:inline-flex;align-items:center;gap:4px;background:#eef2f6;border-radius:10px;padding:1px 7px;font-size:10px}.quality.confirmed{color:var(--green);background:#e9f5ef}.quality.needs_review{color:#8b600e;background:#fff4db}.block-text{font-size:16px;font-weight:500;white-space:pre-wrap;overflow-wrap:anywhere}.formula{font-size:19px;overflow-x:auto;overflow-y:hidden;max-width:100%;color:#121b2a}.formula .katex-display{margin:.35em 0;text-align:left}.formula .katex-display>.katex{text-align:left}.formula-invalid code{display:block;white-space:pre-wrap;overflow-wrap:anywhere;color:#8b4c2b}.formula-invalid span{display:block;font-size:11px;color:#977653;margin-top:8px}.suggestion-form{display:flex;flex-direction:column;gap:8px;margin-top:15px}.suggestion-form>label{font-size:13px}.suggestion-form textarea{width:100%;font-size:13px;min-height:68px}.suggestion-form input{padding:7px 10px;font-size:12px}.suggestion-bottom{display:flex;align-items:center;justify-content:space-between;gap:12px}.suggestion-bottom>span{font-size:11px;color:var(--muted)}.suggestion-bottom .button{font-size:12px;padding:8px 10px;min-height:35px}.pending-result{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:15px;padding:30px;text-align:center;color:var(--muted)}.pending-result h2{color:#34453c}.pending-result p{max-width:330px}.pending-result code{padding:8px 12px;background:#f5f7f9;overflow-wrap:anywhere}.image-loading{display:grid;place-items:center;min-height:350px;color:var(--muted)}.correction-panel{padding:15px;margin-top:16px}.correction-panel .panel-heading{margin-bottom:5px}.tabs{display:flex;gap:22px;border-bottom:1px solid var(--line);margin-bottom:14px}.tabs button{padding:11px 6px;border-bottom:2px solid transparent;font-size:13px;color:var(--muted)}.tabs button.active{color:var(--green);border-bottom-color:var(--green);font-weight:650}.table-scroll{overflow:auto}.correction-table{border-collapse:collapse;width:100%;min-width:690px;text-align:left;font-size:12px}.correction-table th{font-size:12px;color:var(--muted);font-weight:600;background:#f6f8fb;padding:9px 12px;border-bottom:1px solid var(--line)}.correction-table td{padding:13px 12px;border-bottom:1px solid #edf1f5;max-width:250px;vertical-align:middle}.correction-table td:first-child{max-width:130px}.correction-table code{font-size:12px;white-space:pre-wrap;overflow-wrap:anywhere}.correction-table small{display:block;font-size:10px;color:var(--muted);margin-top:4px}.correction-table time{white-space:nowrap;color:#68778b}.review-actions{display:flex;gap:8px}.button.approve{color:var(--green);border-color:#73a190}.button.reject{color:#b14d42;border-color:#dbaca5}.review-state{font-size:12px;color:var(--muted)}.review-state.approved{color:var(--green)}.quiet-empty{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;padding:20px;color:#a0a9b4}.quiet-empty p{font-size:13px;color:#637087;margin-top:4px}.quiet-empty span{font-size:11px}.version-row{display:flex;align-items:center;gap:12px;width:100%;text-align:left;padding:12px 6px;border-bottom:1px solid #eef1f4;color:var(--muted);font-size:12px}.version-row strong{color:#233a30;font-size:13px}.version-row time{margin-left:auto;font-size:11px}.version-content{border-left:2px solid #bdd6ca;margin:10px 15px 20px;padding:10px 20px;display:flex;flex-direction:column;gap:12px}.workspace-note{font-size:11px;color:#8b96a5;margin:12px 2px}.empty-state{text-align:center;padding:32px;color:var(--muted)}.empty-state.large{padding:80px 24px;display:flex;flex-direction:column;align-items:center;gap:16px}.empty-state.large h2{font-size:22px;color:#34453c}.empty-state.large p{max-width:460px}.empty-state.large svg{color:#a0b7a8}.dialog{width:min(620px,calc(100vw - 32px));border:1px solid var(--line);border-radius:9px;padding:24px;max-height:85vh;overflow:auto;color:inherit;box-shadow:0 18px 75px #192b3930}.dialog::backdrop{background:#17203360;-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px)}.dialog-heading{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px;gap:12px}.dialog-heading h2{font-size:21px}.dialog-actions{display:flex;justify-content:flex-end;gap:10px;margin-top:18px}.management-form{display:flex;flex-direction:column;gap:12px}.management-form label{font-size:13px}.upload-drop{border:1px dashed #a7beae;border-radius:6px;background:#f5faf7;display:flex;align-items:center;padding:30px 20px;text-align:center;gap:8px;color:#476052}.upload-drop span{font-size:12px;color:var(--muted)}.upload-drop input{font-size:12px;width:100%;background:#fff}.upload-drop p{font-size:12px;word-break:break-all}.member-list{margin-top:25px;border-top:1px solid var(--line);padding-top:15px}.member-list h3{display:flex;gap:8px;align-items:center;margin-bottom:8px}.member-list>div{padding:8px 0;display:flex;justify-content:space-between;border-bottom:1px solid #eef1f4;font-size:13px}.member-list>div span{font-size:12px;color:var(--muted)}.search-form{display:flex;gap:10px}.search-field{display:flex;flex-direction:row;align-items:center;gap:8px;border:1px solid #d2dbe3;border-radius:5px;padding:0 10px;color:#7f8b9c;background:#fff;flex:1;min-width:0}.search-field input{border:0;flex:1;width:100%;padding:10px 0;background:transparent;font-size:13px}.search-results{max-height:420px;overflow:auto}.search-results>button{width:100%;display:block;text-align:left;border-bottom:1px solid var(--line);padding:13px 5px}.search-results>button:hover{background:#f6faf8}.search-results span{color:var(--muted);font-size:11px}.search-results p{font-size:14px;overflow-wrap:anywhere;margin-top:5px}.toast{position:fixed;bottom:24px;left:50%;transform:translate(-50%);display:flex;align-items:center;gap:10px;z-index:100;max-width:min(700px,calc(100vw - 30px));border:1px solid #bad3c5;border-radius:7px;box-shadow:0 8px 35px #1b342418;background:#f1faf5;padding:12px 16px;color:#28513c;font-size:13px}.toast svg{flex-shrink:0}.toast.error{background:#fff3ee;border-color:#efc9be;color:#944a37}.toast>button{padding:3px;color:inherit;display:flex}.mobile-menu,.sidebar-backdrop{display:none}.heading-icon{color:#9fb6ab;width:32px;height:32px}.handbook-layout{display:grid;grid-template-columns:220px minmax(0,1fr);gap:20px}.guide-index{position:sticky;top:20px;align-self:start;max-height:85vh;overflow:auto}.guide-index nav{display:flex;flex-direction:column;gap:3px;margin-top:12px}.guide-index nav button{text-align:left;padding:9px 10px;font-size:13px;border-radius:4px;color:#536273}.guide-index nav button.active{background:#e5f0e9;color:var(--green);font-weight:600}.prose{padding:28px 32px;min-width:0;font-size:14px;line-height:1.8;overflow-wrap:anywhere}.prose h1{font-size:27px;margin:0 0 20px}.prose h2{font-size:21px;margin:30px 0 12px;border-bottom:1px solid var(--line);padding-bottom:8px}.prose h3{font-size:17px;margin:22px 0 10px}.prose p{margin:12px 0}.prose ul,.prose ol{padding-left:24px}.prose li{margin:7px 0}.prose table{display:block;overflow:auto;border-collapse:collapse;margin:15px 0;max-width:100%;font-size:12px}.prose th,.prose td{padding:8px 11px;border:1px solid var(--line);text-align:left;min-width:100px}.prose th{background:#eef4f0;font-weight:600}.prose pre{overflow:auto;background:#f4f7f9;border-radius:5px;padding:15px;font-size:12px}.prose blockquote{border-left:3px solid #a8c4b4;margin:16px 0;padding-left:16px;color:#657767}.prose a{text-decoration:underline}.prose input[type=checkbox]{margin-right:7px}.login-page{min-height:100vh;display:grid;grid-template-columns:1.08fr 1fr;background:#fff}.login-story{background:#eef4f0;display:flex;flex-direction:column;padding:42px 58px;min-height:100vh}.login-story>.brand{font-size:24px}.login-intro{margin:auto 0;padding:45px 0;max-width:600px}.login-intro h1{font-size:44px;font-weight:650;line-height:1.45;color:#214634;letter-spacing:-1px}.login-intro>p{margin-top:22px;font-size:16px;color:#718175;line-height:1.9}.login-board{margin-top:38px;background:#1c4638;color:#ecf4e9;padding:30px 30px 20px;border-radius:7px;max-width:490px;transform:rotate(-1deg)}.login-board>span{font-family:KaiTi,STKaiti,serif;font-size:26px;letter-spacing:3px}.login-board>div{font-family:Georgia,serif;font-size:33px;margin:23px 0}.login-board small{font-size:25px}.login-board p{font-size:10px;letter-spacing:1px;color:#b2cdbf;border-top:1px solid #4a6f5c;padding-top:13px}.login-footnote{font-size:12px;color:#849388}.login-form-wrap{display:flex;align-items:center;justify-content:center;padding:45px}.login-form{width:100%;max-width:345px}.login-symbol{color:var(--green);margin-bottom:20px;width:30px;height:30px}.login-form h2{font-size:29px;margin-bottom:7px;font-weight:650}.login-form>p{font-size:14px;color:var(--muted);margin-bottom:28px}.login-form label{margin:19px 0;font-size:13px;font-weight:550}.login-form input{height:44px}.login-form .button{margin-top:10px;height:44px}.login-form>p.login-help{font-size:12px;margin:23px 0 0;line-height:1.75}.login-form>.form-error{color:#a9362a;margin:10px 0}@media(min-width:1700px){.editor-grid{grid-template-columns:minmax(0,1.4fr) minmax(0,1fr)}.image-scroll{max-height:740px}.result-panel{padding:20px}.result-block{padding:17px}.formula{font-size:23px}}@media(max-width:1180px){.sidebar{width:200px}.sidebar>.brand{font-size:19px;padding-left:6px}.sidebar>.brand svg{width:26px}.main-shell{margin-left:200px}.topbar{padding:10px 20px}.content{padding:6px 20px 26px}.editor-grid{grid-template-columns:minmax(0,1.05fr) minmax(0,1fr)}.top-actions{gap:7px}.button{padding:8px 11px}.zoom-controls button:last-child span{display:none}.panel-heading h2{font-size:18px}.source-panel,.result-panel{padding:12px}.formula{font-size:16px}.suggestion-bottom{align-items:flex-end}.suggestion-bottom>span{max-width:100px}.handbook-layout{grid-template-columns:170px minmax(0,1fr)}.prose{padding:22px}}@media(max-width:960px){.editor-grid{grid-template-columns:1fr}.image-scroll{max-height:600px;min-height:0}.image-stage img{max-height:none}.result-blocks{gap:9px}.formula{font-size:20px}.result-panel,.source-panel{padding:16px}.suggestion-bottom>span{max-width:none}.classroom-toolbar{flex-wrap:wrap}.select-group select{max-width:220px}.login-story{padding:30px}.login-intro h1{font-size:35px}.login-board{padding:22px}.login-form-wrap{padding:30px}.handbook-layout{grid-template-columns:1fr}.guide-index{position:static;max-height:none}.guide-index nav{display:flex;flex-direction:row;flex-wrap:wrap}.guide-index nav button{background:#edf2ef}}@media(max-width:700px){h1{font-size:25px}.sidebar{transform:translate(-100%);width:240px;transition:transform .2s}.sidebar.open{transform:translate(0)}.sidebar-backdrop{display:block;position:fixed;top:0;right:0;bottom:0;left:0;z-index:25;background:#17203350}.main-shell{margin-left:0}.mobile-menu{display:inline-flex}.topbar{padding:10px 14px;min-height:60px;gap:8px}.breadcrumb{gap:6px}.breadcrumb>span{max-width:115px}.breadcrumb>span:nth-last-child(-n+2){display:none}.top-actions{gap:6px}.top-actions .button{font-size:12px;min-height:34px;padding:7px 9px;gap:5px}.icon-only-mobile>span{display:none}.content{padding:9px 14px 25px}.page-heading{align-items:flex-start;gap:10px;margin-bottom:15px}.page-heading p{font-size:13px;line-height:1.7}.page-heading .text-button{font-size:11px}.demo-notice{font-size:12px;padding:10px;gap:8px;align-items:flex-start}.classroom-toolbar{gap:7px;margin-bottom:12px}.select-group{gap:7px;flex-wrap:wrap;flex:1}.select-group select{max-width:190px;font-size:12px}.job-status{font-size:11px;gap:4px}.job-status svg{width:14px}.toolbar-actions{margin-left:auto;gap:10px}.toolbar-actions .text-button{font-size:11px}.editor-grid{gap:12px}.source-panel,.result-panel{padding:12px}.panel-heading{margin-bottom:10px}.panel-heading h2{font-size:18px}.zoom-controls{height:30px}.zoom-controls button{padding:6px}.zoom-controls>span{font-size:11px;min-width:34px}.panel-caption{font-size:11px}.result-block{padding:11px 12px}.block-text{font-size:15px}.suggestion-form{margin-top:12px}.correction-panel{padding:12px;margin-top:12px}.tabs{gap:15px}.version-row{flex-wrap:wrap;gap:8px}.version-row time{margin-left:26px;width:100%}.toast{bottom:14px;font-size:12px;min-width:80%}.dialog{padding:20px}.dialog-heading h2{font-size:20px}.prose{padding:18px;font-size:13px}.prose h1{font-size:24px}.prose h2{font-size:19px}.guide-index nav button{font-size:12px}.login-page{display:block;background:#f6f9f7}.login-story{min-height:0;padding:24px;background:#eef4f0}.login-story>.brand{font-size:23px}.login-intro{padding:28px 0 10px}.login-intro h1{font-size:29px;line-height:1.45}.login-intro h1 br{display:none}.login-intro>p{margin-top:12px;font-size:13px}.login-board,.login-footnote{display:none}.login-form-wrap{padding:30px 24px 50px;background:#fff}.login-form{max-width:420px}.login-symbol{display:none}.login-form h2{font-size:24px}}@media(prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}.guide-link{color:var(--green);text-decoration:underline;padding:0;font:inherit;text-align:inherit}.table-scroll:before{display:none}@media(max-width:700px){.table-scroll:before{display:block;content:"左右滑动查看完整记录";font-size:11px;color:var(--muted);padding:6px 0}}.suggestion-inline{border:1px solid var(--line);border-left:3px solid var(--green);border-radius:5px;background:#f7faf8;padding:12px 14px}.result-blocks .suggestion-inline{margin-top:-3px}.suggestion-inline .suggestion-form{margin-top:0;gap:9px}.suggestion-inline .suggestion-form>label{font-size:12px;color:#45536a}.palette{display:flex;flex-direction:column;align-items:flex-start;gap:6px}.palette-row{display:flex;flex-wrap:wrap;align-items:center;gap:5px}.palette-group{font-size:11px;color:var(--muted);margin-right:2px}.palette-key{min-width:34px;height:30px;padding:0 8px;border:1px solid var(--line);border-radius:5px;background:#fff;font-size:15px;line-height:1;transition:background .15s,border-color .15s}.palette-key:hover{background:#eef4f0;border-color:#a0c2b2}.suggestion-preview{border:1px dashed var(--line);border-radius:5px;background:#fff;padding:9px 11px;display:flex;flex-direction:column;gap:5px;min-height:44px}.suggestion-preview .palette-group{margin:0}.suggestion-preview .formula{font-size:16px}.suggestion-preview .block-text{font-size:14px}.suggestion-actions{display:flex;flex-wrap:wrap;align-items:center;gap:8px;border-top:1px dashed var(--line);padding-top:10px}.suggestion-actions .button{font-size:12px;padding:6px 10px;min-height:32px;gap:5px}.suggestion-actions .action-question{font-size:12px;color:#45536a}.kind-caption{font-size:12px;line-height:1.55;color:var(--muted)}.kind-tag{font-style:normal;font-size:12px;color:var(--green);background:#e9f5ef;border:1px solid #cfe6db;border-radius:10px;padding:2px 9px;display:inline-block}.login-switch{display:flex;justify-content:center;margin:10px auto 0}.course-code-show{display:flex;align-items:center;gap:12px;border:1px dashed var(--line);border-radius:6px;background:#f7faf8;padding:14px 16px}.course-code-show span{font-size:12px;color:var(--muted)}.course-code-show code{font-size:20px;font-weight:650;letter-spacing:2px;color:var(--green)}.account-open{display:flex;align-items:center;gap:10px;flex:1;min-width:0;text-align:left;padding:4px 6px;border-radius:6px;transition:background .15s}.account-open:hover{background:#f5f8f7}.account-text{display:flex;flex-direction:column;flex:1;min-width:0}.avatar.two{font-size:13px;font-weight:600}.profile-page{max-width:760px;padding:22px}.profile-card{display:flex;align-items:center;gap:20px;padding:24px;border:1px solid var(--line);border-radius:8px;background:#fff}.profile-avatar{width:76px;height:76px;border-radius:50%;display:grid;place-items:center;background:#3d6bd8;color:#fff;font-size:26px;font-weight:600;flex-shrink:0;letter-spacing:2px}.profile-card h2{font-size:24px}.profile-card p{color:var(--muted);font-size:13px;margin-top:6px}.profile-menu{display:flex;flex-direction:column;margin-top:16px;border:1px solid var(--line);border-radius:8px;background:#fff;overflow:hidden}.profile-menu button{display:flex;align-items:center;gap:12px;padding:15px 18px;font-size:14px;border-bottom:1px solid #edf1f5;text-align:left;transition:background .15s}.profile-menu button:hover{background:#f6faf8}.profile-menu button svg:last-child{margin-left:auto;color:var(--muted)}.profile-page>h2{font-size:20px;margin-bottom:14px}.profile-back{display:inline-flex;align-items:center;gap:6px;color:var(--muted);font-size:13px;margin-bottom:16px;padding:6px 0}.profile-back:hover{color:#172033}.password-form{display:flex;flex-direction:column;gap:14px;max-width:420px}.password-form label{font-size:13px}.about-team{display:flex;flex-direction:column;gap:8px;font-size:14px;line-height:1.9}.courses-page{display:flex;flex-direction:column}.course-cards{display:flex;gap:24px;align-items:flex-start}.course-column{flex:1 1 0;min-width:0;display:flex;flex-direction:column;gap:24px}.course-card{position:relative;overflow:hidden;min-height:240px;border:1px solid transparent;border-radius:12px;background:#fff;box-shadow:0 4px 16px #0009;transition:min-height .35s ease,border-color .15s ease,box-shadow .35s ease}.course-card-backdrop{position:absolute;top:0;right:0;bottom:0;left:0;z-index:0}.course-card-backdrop .course-cover{width:100%;height:100%;object-fit:cover;filter:blur(2px);transform:scale(1.1);border-radius:0;background:transparent}.course-card-backdrop .course-cover.placeholder{display:grid;place-items:center;font-size:80px;font-weight:700;color:#c3ded5;background:#e5f1ea}.course-card-backdrop:after{content:"";position:absolute;top:0;right:0;bottom:0;left:0;background:linear-gradient(to right,#fffffff2,#ffffff26)}.course-card.expanded{min-height:360px;border-color:#a0c2b2;box-shadow:0 12px 36px #1b342499}.course-card-main{position:relative;z-index:1;display:flex;align-items:center;gap:14px;width:100%;text-align:left;padding:20px 24px;background:transparent;transition:padding-left .35s ease}.course-card.expanded .course-card-main{padding-left:170px}.course-cover{width:92px;height:58px;border-radius:6px;object-fit:cover;background:#e5f1ea;flex-shrink:0;display:grid;place-items:center}.course-cover.placeholder{font-size:24px;font-weight:650;color:#3f7a63}.course-card-info{display:flex;flex-direction:column;gap:8px;flex:1;min-width:0}.course-card-info strong{font-size:18px;font-weight:700;color:#172033;overflow-wrap:anywhere;transition:font-size .35s ease}.course-card.expanded .course-card-info strong{font-size:34px}.course-card-info small{font-size:12px;color:var(--muted);transition:font-size .35s ease,color .35s ease}.course-card.expanded .course-card-info small{font-size:14px;color:#45536a;margin-top:2px}.course-card-chevron{color:var(--muted);transition:transform .15s;flex-shrink:0}.course-card.expanded .course-card-chevron{transform:rotate(180deg)}.course-card-actions{position:absolute;left:24px;top:24px;display:flex;flex-direction:column;gap:10px;z-index:2;background:transparent;padding:0;border-top:none;animation:fadeIn .3s ease}.course-card-actions .button{background:#172033;color:#fff;border-color:#172033;justify-content:flex-start;min-width:120px;padding:8px 14px;transition:background .15s,border-color .15s}.course-card-actions .button:hover{background:#2c3e50;border-color:#2c3e50}.sub-page{max-width:860px;padding:22px}.sub-page>h2{font-size:20px;margin-bottom:16px}.settings-section{border-top:1px solid #edf1f5;padding:16px 0 6px}.settings-section h3{font-size:14px;color:#45536a;margin-bottom:10px}.settings-inline{display:flex;gap:10px;align-items:center}.settings-inline input{flex:1;max-width:420px}.cover-row{display:flex;align-items:center;gap:14px}.cover-row .course-cover{width:140px;height:88px}.file-label{position:relative;overflow:hidden;cursor:pointer}.file-label input{position:absolute;top:0;right:0;bottom:0;left:0;opacity:0;cursor:pointer;width:100%;height:100%}.archive-confirm,.member-add{display:flex;gap:10px;align-items:center;flex-wrap:wrap;font-size:13px;color:#45536a}.member-add{margin-bottom:14px}.member-add input{flex:1;max-width:420px}.member-side{display:inline-flex;align-items:center;gap:10px}.member-remove{color:#b14d42}.member-remove:hover{color:#8c352c}.session-rows{display:flex;flex-direction:column;gap:10px}.session-row{border:1px solid var(--line);border-radius:6px;background:#fafcfb}.session-head{display:flex;align-items:center;gap:12px;padding:11px 13px;flex-wrap:wrap}.session-head strong{font-size:14px}.session-actions{margin-left:auto;display:flex;gap:8px;flex-wrap:wrap}.badge{font-size:11px;color:#8b600e;background:#fff4db;border-radius:10px;padding:2px 9px}.session-row.ended .session-head strong{color:#68778b}.session-materials{border-top:1px dashed var(--line);padding:10px 13px;display:flex;flex-direction:column;align-items:flex-start;gap:8px}.material-row{display:flex;align-items:center;gap:10px;font-size:13px;width:100%;flex-wrap:wrap}.material-name{font-size:13px;color:var(--green);text-align:left;overflow-wrap:anywhere}.material-meta{color:var(--muted);font-size:11px;white-space:nowrap}.material-confirm{display:inline-flex;gap:8px}.archive-heading{font-size:14px;color:#45536a;margin:18px 0 10px}.archive-rows{display:flex;flex-direction:column}.archive-row{display:flex;justify-content:space-between;align-items:center;gap:12px;padding:11px 2px;border-bottom:1px solid #edf1f5}.archive-row strong{font-size:14px;display:block;overflow-wrap:anywhere}.archive-row small{color:var(--muted);font-size:11px}.crumb-link{color:inherit;font-size:13px;padding:2px 3px;border-radius:4px;transition:background .15s,color .15s}.crumb-link:hover{color:#172033;text-decoration:underline}.block-questions{border-top:1px dashed var(--line);padding-top:10px;display:flex;flex-direction:column;gap:8px}.block-questions>.palette-group{display:inline-flex;align-items:center;gap:5px}.question-item{border:1px solid var(--line);border-radius:6px;background:#fff;padding:9px 11px;display:flex;flex-direction:column;gap:6px}.question-text{font-size:13px;color:#172033;overflow-wrap:anywhere}.question-answer{font-size:13px;color:#28513c;background:#eef7f1;border-radius:5px;padding:7px 9px;overflow-wrap:anywhere}.question-answer strong{font-weight:600}.question-pending{font-size:11px;color:var(--muted)}.question-answer-open{align-self:flex-start;font-size:12px;color:var(--green)}.question-answer-form{display:flex;gap:8px;align-items:center}.question-answer-form input{flex:1;font-size:12px;padding:6px 9px}.question-form{display:flex;gap:8px;align-items:center}.question-form input{flex:1;font-size:12px;padding:7px 10px}.resource-list{display:flex;flex-direction:column;gap:14px}.resource-session{border:1px solid var(--line);border-radius:6px;padding:12px 14px;background:#fafcfb;display:flex;flex-direction:column;gap:8px}.resource-session h3{font-size:14px;display:flex;align-items:center;gap:9px;flex-wrap:wrap}.resource-material{display:flex;align-items:center;gap:9px;font-size:13px;color:#45536a}.summary-content{font-size:14px;line-height:1.75;overflow-wrap:anywhere;color:#233a30}.summary-title{margin:4px 0 10px;font-size:17px;color:#1e5c49}.summary-subtitle{margin:14px 0 6px;font-size:14.5px;color:#28513c;border-left:3px solid #6bcc8b;padding-left:8px}.summary-p{margin:6px 0}.summary-list{margin:6px 0 6px 4px;padding-left:18px;display:flex;flex-direction:column;gap:4px}.summary-content a{color:#1e7a5c;text-decoration:underline;text-underline-offset:2px}.summary-content .formula{overflow-x:auto}.summary-content .summary-quote{margin:8px 0;padding:8px 12px;border-left:3px solid #cfe6db;background:#f4faf7;border-radius:0 6px 6px 0;color:#3f5148}.summary-content code{font-family:Cascadia Code,Consolas,monospace;font-size:12.5px;background:#f1f4f7;border:1px solid #e2e8ee;border-radius:4px;padding:0 4px}.block-knowledge{border-top:1px dashed var(--line);padding-top:10px;display:flex;flex-direction:column;gap:8px}.block-knowledge>.palette-group{display:inline-flex;align-items:center;gap:5px}.knowledge-actions{display:flex;gap:8px;flex-wrap:wrap}.knowledge-mark{display:flex;gap:8px;align-items:center;flex-wrap:wrap}.knowledge-mark input{font-size:12px;padding:6px 9px}.knowledge-mark input:first-of-type{flex:1;min-width:140px}.knowledge-mark select,.concept-link-form select{font-size:12px;padding:6px 8px;border:1px solid #cfd9e3;border-radius:5px;background:#fff}.learning-path{display:flex;flex-direction:column;gap:6px;align-items:flex-start;width:100%}.learning-step{display:flex;align-items:center;gap:9px;border:1px solid var(--line);border-radius:6px;background:#fff;padding:8px 11px;font-size:13px;text-align:left;width:100%;transition:border-color .15s}.learning-step:hover{border-color:#a0c2b2}.learning-step strong{font-weight:600}.learning-step small{color:var(--muted);font-size:11px;margin-left:auto}.step-kind{font-size:11px;border-radius:10px;padding:2px 8px;white-space:nowrap}.step-kind.prerequisite{color:#8b600e;background:#fff4db}.step-kind.current{color:var(--green);background:#e9f5ef}.step-kind.example{color:#28513c;background:#eef7f1}.step-kind.related{color:#45536a;background:#eef2f6}.concept-list{display:flex;flex-direction:column;gap:12px}.concept-row{border:1px solid var(--line);border-radius:6px;background:#fff;padding:12px 14px;display:flex;flex-direction:column;gap:8px}.concept-head{display:flex;align-items:center;gap:10px;flex-wrap:wrap}.concept-head strong{font-size:15px}.concept-head small{color:var(--muted);font-size:11px}.concept-head .icon-button{margin-left:auto;color:#b14d42}.concept-confirm{display:inline-flex;gap:8px;margin-left:auto;font-size:12px}.concept-anchors{display:flex;gap:8px;flex-wrap:wrap}.concept-chip{display:inline-flex;align-items:center;gap:6px;font-size:11px;color:#45536a;background:#eef2f6;border-radius:10px;padding:3px 10px}.concept-chip.requires{color:#8b600e;background:#fff4db}.concept-chip.related{color:var(--green);background:#e9f5ef}.concept-chip.muted{color:#8b96a5;background:#f2f5f8}.concept-chip.bound{color:#345c8f;background:#e8f0fa}.concept-badge{font-size:10px;border-radius:8px;padding:2px 8px;color:#8b96a5;background:#f2f5f8}.concept-badge.lit{color:var(--green);background:#e9f5ef}.session-mode{border:0;padding:0;margin:0;display:flex;gap:16px;flex-wrap:wrap;font-size:13px}.session-mode label{flex-direction:row;align-items:center;gap:6px;font-weight:550}.session-mode input{width:auto;padding:0;margin:0}.concept-links{display:flex;gap:8px;flex-wrap:wrap;align-items:center}.chip-x{border:0;background:none;color:inherit;font-size:13px;line-height:1;padding:0 2px;cursor:pointer}.chip-x:hover{color:#b14d42}.concept-link-form{display:flex;gap:8px;align-items:center;flex-wrap:wrap}.concept-add-link{font-size:12px}.topbar-search-box{position:absolute;left:50%;transform:translate(-50%);display:flex;align-items:center;background:#f1f5f9;border-radius:20px;padding:7px 16px;width:320px;transition:width .2s ease,box-shadow .2s ease,background .2s ease}.topbar-search-box:focus-within{width:420px;background:#fff;box-shadow:0 4px 16px #00000014}.topbar-search-box .search-icon{color:#94a3b8;margin-right:10px;flex-shrink:0}.topbar-search-box input{border:none;background:transparent;outline:none;width:100%;font-size:13px;color:#172033;padding:0}.topbar-search-box input::placeholder{color:#94a3b8}.sub-page{max-width:1000px}.member-layout{display:grid;grid-template-columns:260px 1fr;gap:28px;margin-top:20px}.member-search-side{position:sticky;top:20px;align-self:start}.member-search-box{display:flex;align-items:center;gap:8px;background:#fff;border:1px solid #cfd9e3;border-radius:8px;padding:10px 14px;transition:border-color .2s,box-shadow .2s}.member-search-box:focus-within{border-color:var(--green);box-shadow:0 0 0 3px #1e5c491a}.member-search-box input{border:0;outline:none;background:transparent;flex:1;min-width:0;font-size:13px}.member-search-box input::placeholder{color:#94a3b8}.member-list-side{background:#fff;border:1px solid var(--line);border-radius:8px;padding:8px 20px}.member-row{display:flex;justify-content:space-between;align-items:center;padding:14px 0;border-bottom:1px solid #edf1f5;font-size:14px}.member-row:last-child{border-bottom:0}@media(max-width:768px){.member-layout{grid-template-columns:1fr}}.concept-flow-node{padding:10px 18px;background:#fff;border:2px solid #cbd5e1;border-radius:8px;font-size:13px;font-weight:600;color:#475569;box-shadow:0 2px 8px #00000014;min-width:100px;max-width:200px;text-align:center;word-break:break-word}.concept-flow-node.lit{background:#e9f5ef;border-color:#1e5c49;color:#1e5c49}.concept-flow-node .react-flow__handle{width:8px;height:8px;background:#94a3b8;border:2px solid #fff}.concept-flow-node.lit .react-flow__handle{background:#1e5c49}.profile-page{max-width:760px;padding:24px}.profile-card{display:flex;gap:22px;padding:24px;border:1px solid var(--line);border-radius:16px;background:linear-gradient(135deg,#f6fbf8,#eef5f1);align-items:flex-start}.profile-avatar-wrap{position:relative;flex-shrink:0}.profile-avatar-img{width:88px;height:88px;border-radius:50%;object-fit:cover;border:3px solid #fff;box-shadow:0 6px 16px #1e5c4926;display:block}.profile-avatar{width:88px;height:88px;border-radius:50%;display:grid;place-items:center;background:#3d6bd8;color:#fff;font-size:26px;font-weight:600;letter-spacing:2px;border:3px solid #fff;box-shadow:0 6px 16px #3d6bd840}.profile-avatar-edit{position:absolute;right:-2px;bottom:-2px;width:28px;height:28px;border-radius:50%;background:var(--green);color:#fff;display:grid;place-items:center;border:2px solid #fff;box-shadow:0 2px 8px #00000026;transition:transform .15s}.profile-card-body{flex:1;min-width:0}.profile-card-body h2{font-size:24px;display:flex;align-items:center;gap:10px}.profile-signature{margin-top:10px!important;padding:8px 12px;background:#ffffffb3;border-left:3px solid var(--green);border-radius:4px;color:#34453c!important;font-style:italic;font-size:13px!important}.profile-section-title{font-size:16px;color:#45536a;margin:26px 0 12px;padding-left:2px}.profile-form-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}.profile-form .dialog-actions{margin-top:24px;display:flex;justify-content:flex-end;align-items:center;gap:14px}@media(max-width:700px){.profile-form-grid{grid-template-columns:1fr}}.profile-layout{display:grid;grid-template-columns:340px minmax(0,1fr);gap:26px;max-width:none;padding:26px;align-items:start}.profile-sidebar{position:sticky;top:20px;display:flex;flex-direction:column;gap:16px}.profile-content{min-width:0}.profile-card{display:flex;flex-direction:column;align-items:center;text-align:center;gap:14px;padding:26px 22px;border:1px solid #dcebe3;border-radius:16px;background:linear-gradient(160deg,#f6fbf8,#eef5f1);box-shadow:0 8px 24px #1e5c490f}.profile-avatar-wrap{position:relative}.profile-avatar-img{width:96px;height:96px;border-radius:50%;object-fit:cover;border:4px solid #fff;box-shadow:0 6px 16px #1e5c492e;display:block}.profile-avatar{width:96px;height:96px;border-radius:50%;display:grid;place-items:center;background:#3d6bd8;color:#fff;font-size:28px;font-weight:600;letter-spacing:2px;border:4px solid #fff;box-shadow:0 6px 16px #3d6bd840}.profile-avatar-edit{position:absolute;right:2px;bottom:2px;width:30px;height:30px;border-radius:50%;background:var(--green);color:#fff;display:grid;place-items:center;border:2px solid #fff;box-shadow:0 2px 8px #00000026;transition:transform .15s}.profile-avatar-edit:hover{transform:scale(1.08)}.profile-avatar-edit:disabled{opacity:.5;cursor:not-allowed}.profile-card-body{width:100%}.profile-card-body h2{font-size:20px;display:flex;justify-content:center;align-items:center;gap:8px;flex-wrap:wrap}.profile-card-body p{color:var(--muted);font-size:13px;margin-top:6px}.profile-signature{margin-top:12px!important;padding:10px 12px;background:#ffffffbf;border-left:3px solid var(--green);border-radius:4px;color:#34453c!important;font-style:italic;font-size:13px!important;text-align:left}.profile-card-body .text-button{margin-top:10px;font-size:12px}.role-badge{font-size:11px;font-weight:600;color:var(--green);background:#e9f5ef;border:1px solid #cfe6db;padding:3px 10px;border-radius:20px}.role-badge.student{color:#345c8f;background:#e8f0fa;border-color:#c9dcf0}.profile-menu{display:flex;flex-direction:column;border:1px solid #e8edf2;border-radius:12px;background:#fff;overflow:hidden;box-shadow:0 4px 14px #0000000a}.profile-menu button{display:flex;align-items:center;gap:12px;padding:14px 18px;font-size:14px;font-weight:550;color:#2c3e50;border-bottom:1px solid #f0f4f7;text-align:left;background:transparent;transition:all .15s}.profile-menu button:last-child{border-bottom:0}.profile-menu button:hover{background:#f6faf8;color:var(--green)}.profile-menu button.active{background:#e9f5ef;color:var(--green);font-weight:650;border-left:3px solid var(--green);padding-left:15px}.profile-menu button svg:last-child{margin-left:auto;color:#cbd5df}.profile-menu button.active svg:last-child{color:var(--green)}.profile-section-title{font-size:18px;color:#233a30;margin:0 0 16px;padding-bottom:12px;border-bottom:1px solid #edf1f5}.profile-form{border:1px solid #e8edf2;border-radius:12px;background:#fff;padding:22px 24px;box-shadow:0 4px 16px #00000008}.profile-form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}.profile-form-grid label{font-size:13px;color:#45536a;display:flex;flex-direction:column;gap:7px;font-weight:550}.profile-form-grid .span-2{grid-column:1 / -1}.profile-form-grid input,.profile-form-grid select{padding:9px 12px;border:1px solid #cfd9e3;border-radius:6px;font-size:13px;transition:border-color .15s}.profile-form-grid input:focus,.profile-form-grid select:focus{outline:none;border-color:var(--green);box-shadow:0 0 0 3px #1e5c491a}.profile-form .dialog-actions{margin-top:16px;display:flex;justify-content:flex-end;align-items:center;gap:14px}.profile-saved-hint{font-size:12px;color:var(--green);font-weight:600}.password-form{display:flex;flex-direction:column;gap:14px;max-width:420px;border:1px solid #e8edf2;border-radius:12px;background:#fff;padding:24px;box-shadow:0 4px 16px #00000008}.password-form label{font-size:13px;color:#45536a;display:flex;flex-direction:column;gap:7px;font-weight:550}.password-form input{padding:9px 12px;border:1px solid #cfd9e3;border-radius:6px;font-size:13px}.password-form input:focus{outline:none;border-color:var(--green);box-shadow:0 0 0 3px #1e5c491a}.password-form .dialog-actions{margin-top:6px;justify-content:flex-start}.about-team-panel{border:1px solid #e8edf2;border-radius:12px;background:#fff;padding:24px 26px;box-shadow:0 4px 16px #00000008;display:flex;flex-direction:column;gap:10px;font-size:14px;line-height:1.9;color:#34453c}.about-team-panel p{margin:0}.archive-panel{border:1px solid #e8edf2;border-radius:12px;background:#fff;padding:22px 24px;box-shadow:0 4px 16px #00000008}.archive-heading{font-size:14px;color:#45536a;margin:0 0 12px}.archive-heading+.archive-rows+.archive-heading{margin-top:22px}@media(max-width:900px){.profile-layout{grid-template-columns:1fr;padding:18px}.profile-sidebar{position:static}.profile-form-grid{grid-template-columns:1fr}}.profile-form-grid input:disabled{background:#f5f7fa;color:#8b96a5;cursor:not-allowed;border-color:#e2e8f0}.account-info-panel{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border:1px solid #e8edf2;border-radius:12px;background:#fff;overflow:hidden;box-shadow:0 4px 16px #00000008;margin-bottom:22px}.account-info-item{padding:18px 22px;border-right:1px solid #edf1f5;display:flex;flex-direction:column;gap:8px}.account-info-item:last-child{border-right:0}.account-info-label{font-size:11px;color:#8b96a5;font-weight:600;letter-spacing:.5px;text-transform:uppercase}.account-info-value{font-size:15px;color:#233a30;font-weight:600;word-break:break-all}.profile-section-subtitle{font-size:15px;color:#45536a;margin:0 0 12px;font-weight:600}@media(max-width:700px){.account-info-panel{grid-template-columns:1fr}.account-info-item{border-right:0;border-bottom:1px solid #edf1f5}.account-info-item:last-child{border-bottom:0}}.editor-grid>.source-panel{position:sticky;top:20px;align-self:start;max-height:calc(100vh - 40px)}.session-strip-wrap{display:flex;align-items:flex-start;gap:10px}.session-strip-wrap .session-strip{flex:1;min-width:0}.session-graph-entry{flex-shrink:0;margin-top:4px}.session-strip{display:flex;gap:8px;overflow-x:auto;padding:4px 2px 12px;scrollbar-width:thin;scroll-behavior:smooth}.session-strip::-webkit-scrollbar{height:6px}.session-strip::-webkit-scrollbar-thumb{background:#cbd5e1;border-radius:3px}.session-chip{flex:0 0 auto;padding:8px 16px;border-radius:20px;background:#f1f5f9;color:#475569;font-size:13px;font-weight:550;white-space:nowrap;border:1px solid transparent;transition:background .15s,color .15s,border-color .15s}.session-chip:hover{background:#e9f5ef;color:#1e5c49}.session-chip.active{background:#1e5c49;color:#fff;border-color:#1e5c49}.board-view-toggle{display:inline-flex;gap:4px;background:#f1f5f9;padding:3px;border-radius:8px;margin-left:8px}.board-view-toggle .button.small{min-height:28px;padding:6px 10px;font-size:12px}.blackboard-panel{padding:15px}.blackboard-hint{display:flex;align-items:center;gap:12px;font-size:12px;color:#8b96a5}.blackboard-stage{position:relative;width:100%;-webkit-user-select:none;user-select:none;background:#eaf0ed;border-radius:8px;overflow:hidden}.blackboard-stage>img{display:block;width:100%;height:auto;pointer-events:none}.blackboard-block{position:absolute;background:#1e5c491f;border:2px dashed rgba(38,166,124,.95);box-shadow:0 0 0 1.5px #ffffff8c,0 2px 10px #0000002e;border-radius:6px;padding:4px 8px;cursor:move;transition:background .15s,border-color .15s,box-shadow .15s}.blackboard-block:hover{background:#fffc;border:2px solid #1e5c49;border-style:solid;box-shadow:0 6px 20px #1e5c4947;z-index:10}.blackboard-block-index{position:absolute;top:2px;left:2px;min-width:16px;height:16px;padding:0 4px;background:#1e5c49;color:#fff;font-size:10px;font-weight:700;line-height:16px;text-align:center;border-radius:3px;pointer-events:none;-webkit-user-select:none;user-select:none}.blackboard-block-content{width:100%;height:100%;display:flex;align-items:center;justify-content:center;text-align:center;font-size:18px;line-height:1.35;padding:2px 8px;box-sizing:border-box;overflow:hidden;word-break:break-word;overflow-wrap:anywhere;opacity:0;transition:opacity .15s}.blackboard-block:hover .blackboard-block-content{opacity:1}.blackboard-block-content .formula{font-size:20px}.blackboard-resize{position:absolute;right:-4px;bottom:-4px;width:14px;height:14px;background:#1e5c49;border:2px solid #fff;border-radius:50%;cursor:nwse-resize;box-shadow:0 1px 4px #0003;opacity:0;transition:opacity .15s}.blackboard-block:hover .blackboard-resize{opacity:1}.blackboard-stage{overflow:visible!important}.blackboard-stage>img{border-radius:8px}.blackboard-open-btn{position:absolute;top:3px;right:3px;width:24px;height:24px;display:grid;place-items:center;background:#1e5c49d9;color:#fff;border-radius:5px;opacity:0;transition:opacity .15s;cursor:pointer;z-index:5;border:0}.blackboard-block:hover .blackboard-open-btn{opacity:1}.blackboard-block.panel-open{background:#fffc;border-style:solid;border-color:#1e5c49;z-index:50}.blackboard-block.panel-open .blackboard-block-content{opacity:1}.blackboard-popover{position:absolute;top:0;width:420px;max-width:min(90vw,520px);max-height:80vh;overflow:auto;background:#fff;border:1px solid #cfe6db;border-radius:10px;box-shadow:0 12px 40px #1e5c4940;z-index:100;cursor:default;text-align:left}.blackboard-popover.right{left:calc(100% + 8px)}.blackboard-popover.left{right:calc(100% + 8px)}.blackboard-popover.up{top:auto;bottom:0}.blackboard-popover-head{display:flex;align-items:center;justify-content:space-between;padding:8px 12px;border-bottom:1px solid #edf1f5;font-size:12px;font-weight:600;color:#45536a;position:sticky;top:0;background:#fff;z-index:1}.blackboard-popover-body{padding:12px}.board-picker{position:relative;min-width:0}.board-picker-button{display:flex;align-items:center;gap:8px;padding:7px 11px;height:35px;max-width:270px;background:var(--surface);border:1px solid var(--line);border-radius:6px;font-size:13px;color:inherit;cursor:pointer;transition:border-color .15s}.board-picker-button:hover{border-color:#9cc7b3}.board-picker-button span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.board-picker-button small{color:var(--muted);font-size:11px;flex:none}.board-picker-menu{position:absolute;top:calc(100% + 6px);left:0;z-index:60;width:300px;max-width:min(84vw,340px);background:#fff;border:1px solid #cfe6db;border-radius:10px;box-shadow:0 12px 40px #1e5c4940;padding:8px}.board-picker-head{display:flex;justify-content:space-between;align-items:center;padding:2px 6px 7px;font-size:12px;color:var(--muted);font-weight:600}.board-picker-all{display:flex;gap:5px;align-items:center;font-weight:400;cursor:pointer;font-size:12px}.board-picker-list{max-height:280px;overflow:auto;display:flex;flex-direction:column;gap:2px}.board-picker-row{display:flex;align-items:center;gap:8px;padding-left:2px}.board-picker-item{flex:1;display:flex;align-items:center;gap:8px;padding:8px 9px;border-radius:6px;background:none;border:0;text-align:left;font-size:13px;cursor:pointer;color:inherit;min-width:0}.board-picker-item:hover{background:#f2f7f4}.board-picker-item.active,.board-picker-row.active{background:var(--light-green);font-weight:600;border-radius:6px}.board-picker-item small{margin-left:auto}.board-picker-item svg{color:var(--green);flex:none}.picker-status{font-size:11px;color:var(--muted);flex:none;font-weight:400}.picker-status.failed{color:#b42318}.picker-status.running,.picker-status.queued{color:#b54708}.board-picker-empty{padding:10px;color:var(--muted);font-size:13px;margin:0}.board-picker-foot{display:flex;align-items:center;justify-content:flex-end;gap:8px;padding:8px 2px 2px;border-top:1px solid var(--line);margin-top:6px;font-size:12px;min-height:34px}.board-picker-foot span{color:#8a4b1f;flex:1}.session-name-row{display:grid;grid-template-columns:110px 1fr;gap:10px}.deleted-preview{flex:1;min-width:0;font-size:13px;color:#2c3a36;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.summary-entry{width:100%;text-align:left;cursor:pointer;display:block;transition:background .15s,border-color .15s}.summary-entry:hover{background:#f2f7f4;border-color:#9cc7b3}.summary-entry h3{display:flex;align-items:center;gap:8px}.summary-state{margin-left:auto;font-size:12px;color:#8b96a5;font-weight:400}.summary-state.ready{color:#1e7a5c}.summary-meta{margin-left:10px;font-size:12px;color:var(--muted)}.vote-button{display:inline-flex;align-items:center;gap:4px;border:1px solid #cfe6db;background:#f4faf7;color:#28513c;border-radius:14px;padding:4px 10px;font-size:12px;font-weight:600;transition:background .15s,border-color .15s}.vote-button:hover:not(:disabled){background:#e6f4ec;border-color:#9cc7b3}.vote-button.voted{background:var(--green);border-color:var(--green);color:#fff}.vote-button:disabled{opacity:.55;cursor:not-allowed}.batch-bar{display:flex;align-items:center;justify-content:space-between;gap:12px;margin:10px 0;padding:8px 12px;border:1px dashed #a9c9b8;border-radius:8px;background:#f6fbf8;font-size:12.5px;color:#3f5148}.review-cell{display:flex;align-items:center;gap:10px;flex-wrap:wrap}.review-state-col{display:inline-flex;flex-direction:column;gap:2px}.review-state-col small{color:var(--muted);font-size:11px;max-width:220px}.pick-box{display:inline-flex;align-items:center;margin:0}.pick-box input{accent-color:var(--green)}.sub-page.sub-page-wide{max-width:none}.summary-split{display:flex;gap:22px;align-items:flex-start}.summary-main{flex:1;min-width:0}.summary-chat{width:340px;flex-shrink:0;position:sticky;top:16px}.xiaoban-dock{position:relative;display:flex;flex-direction:column;width:auto;margin:0;min-height:420px;max-height:calc(100vh - 150px)}.xiaoban-dock .xiaoban-messages{flex:1;max-height:none;min-height:200px}@media(max-width:960px){.summary-split{flex-direction:column}.summary-chat{width:100%;position:static}}.assistant-search{display:flex;flex-direction:row;align-items:center;gap:9px;border:1px solid var(--line);border-radius:8px;padding:0 12px;background:#fff;margin:14px 0 18px;max-width:520px}.assistant-search input{border:0;padding:10px 0;flex:1;font-size:14px}.assistant-search input:focus{outline:none}.assistant-search svg{color:var(--muted);flex-shrink:0}.conversation-list{display:flex;flex-direction:column;gap:10px}.conversation{border:1px solid var(--line);border-radius:10px;background:#fff;overflow:hidden}.conversation-head{display:flex;align-items:center;justify-content:space-between;gap:12px;width:100%;text-align:left;padding:13px 16px}.conversation-head:hover{background:#f7faf8}.conversation-title{display:flex;flex-direction:column;gap:4px;min-width:0}.conversation-title strong{font-size:14.5px;font-weight:600;overflow-wrap:anywhere}.conversation-title small{color:var(--muted);font-size:12px}.conversation.deleted .conversation-title strong{color:#98a2b3}.deleted-tag{color:#98a2b3;font-size:12px;font-weight:400}.conversation-chevron{color:var(--muted);transition:transform .15s;flex-shrink:0}.conversation-head[aria-expanded=true] .conversation-chevron{transform:rotate(180deg)}.conversation-thread{display:flex;flex-direction:column;gap:10px;padding:4px 16px 16px;border-top:1px dashed var(--line)}.conversation-turn{display:flex;flex-direction:column;gap:4px;font-size:13.5px}.conversation-role{font-size:11px;color:var(--muted);font-weight:600}.conversation-turn .summary-content{font-size:13.5px;line-height:1.65;color:inherit}.conversation-turn .summary-title{font-size:14px}.conversation-turn .summary-subtitle{font-size:13.5px;margin:8px 0 4px}.conversation-turn .summary-p{margin:4px 0}.conversation-plain{white-space:pre-wrap}.suggestion-label-row{display:flex;align-items:center;justify-content:space-between;gap:10px}.suggestion-label-row label{font-size:12px;color:#45536a;font-weight:550}.xiaoban-float{position:fixed;width:320px;z-index:350;margin:0;min-height:min(460px,72vh);max-height:min(72vh,520px);display:flex;flex-direction:column}.xiaoban-float .xiaoban-messages{flex:1;max-height:none;min-height:160px}.xiaoban-panel{border:1px solid #cfe6db;border-radius:10px;background:#f7fbf9;box-shadow:0 8px 26px #1e5c4929;margin:6px 0 10px;overflow:hidden}.xiaoban-head{display:flex;align-items:center;gap:8px;padding:8px 10px;background:linear-gradient(90deg,#e9f5ef,#f4faf7);border-bottom:1px solid #e2efe8}.xiaoban-head strong{font-size:13px;color:#1e5c49}.xiaoban-avatar{width:26px;height:26px;border-radius:50%;object-fit:cover;border:1.5px solid #fff;box-shadow:0 1px 4px #1e5c4940}.xiaoban-sub{font-size:11px;color:var(--muted);flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.xiaoban-messages{max-height:210px;overflow:auto;padding:10px;display:flex;flex-direction:column;gap:8px;background:#fff}.xiaoban-empty{margin:2px;font-size:12px;color:var(--muted)}.xiaoban-turn{max-width:88%;padding:7px 10px;border-radius:10px;font-size:12.5px;line-height:1.5;white-space:pre-wrap;word-break:break-word}公式/列表）——气泡里压小字号 */ .xiaoban-turn .summary-content{font-size:12.5px;line-height:1.5;color:inherit}.xiaoban-turn .summary-title{font-size:13px;margin:2px 0 5px}.xiaoban-turn .summary-subtitle{font-size:12.5px;margin:7px 0 4px}.xiaoban-turn .summary-p{margin:3px 0}.xiaoban-turn .summary-list{margin:3px 0 3px 2px;padding-left:14px;gap:2px}.xiaoban-turn .summary-quote{margin:4px 0;padding:4px 8px}.xiaoban-turn.user{align-self:flex-end;background:var(--green);color:#fff;border-bottom-right-radius:3px}.xiaoban-turn.assistant{align-self:flex-start;background:#edf6f1;color:#213b32;border-bottom-left-radius:3px}.xiaoban-typing{color:#6d8a7d;font-style:italic}.xiaoban-input-row{border-top:1px solid #e2efe8;padding:8px 10px;background:#fbfdfc}.xiaoban-toggle{display:inline-flex;flex-direction:row;align-items:center;gap:5px;font-size:12px;color:#28513c;cursor:pointer;margin-bottom:6px;-webkit-user-select:none;user-select:none;font-weight:400}.xiaoban-toggle input{accent-color:var(--green)}.xiaoban-send-row{display:flex;gap:8px;align-items:flex-end}.xiaoban-send-row textarea{flex:1;min-width:0;resize:vertical;font-size:12.5px;padding:7px 9px;border:1px solid var(--line);border-radius:8px;font-family:inherit}.xiaoban-send-row textarea:focus{outline:none;border-color:#9cc7b3}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}.region-resize-dot{fill:#1e5c49;stroke:#fff;stroke-width:2;vector-effect:non-scaling-stroke;pointer-events:none}.region.selected{cursor:move}.region.selected:hover{cursor:nwse-resize}.move-overlay-original{fill:none;stroke:#d64541;stroke-width:2.5;stroke-dasharray:9 6;vector-effect:non-scaling-stroke;pointer-events:none}.move-overlay-proposed{fill:none;stroke:#2f8f60;stroke-width:2.5;vector-effect:non-scaling-stroke;pointer-events:none}.review-locations{display:flex;flex-wrap:wrap;gap:8px;margin:0 0 12px}.review-loc-chip{display:inline-flex;align-items:center;gap:7px;padding:7px 12px;border:1px solid var(--line);border-radius:20px;background:#fff;font-size:13px}.review-loc-chip:hover{border-color:#a0c2b2}.review-loc-chip.active{background:var(--light-green);border-color:var(--green);color:var(--green);font-weight:600}.review-loc-count{background:#eef2f6;border-radius:10px;padding:0 7px;font-size:11px;color:#45536a}.review-loc-chip.active .review-loc-count{background:#fff;color:var(--green)}.review-grid{display:grid;grid-template-columns:minmax(0,1.6fr) minmax(0,.85fr);gap:16px;align-items:start}.review-grid .correction-panel{margin-top:0}.review-grid .correction-table{min-width:0}.review-compare{display:flex;flex-direction:column;gap:6px;align-items:stretch}.review-compare .button{width:100%;justify-content:center}@media(max-width:1180px){.review-grid{grid-template-columns:minmax(0,1fr) minmax(0,1fr)}}@media(max-width:700px){.review-grid{grid-template-columns:1fr}}.correction-table tr.locatable{cursor:pointer}.correction-table tr.locatable:hover{background:#f6faf8}.topbar-search-dropdown{position:absolute;top:calc(100% + 8px);left:50%;transform:translate(-50%);width:100%;min-width:360px;max-height:420px;overflow:auto;background:#fff;border:1px solid var(--line);border-radius:10px;box-shadow:0 12px 32px #17203329;z-index:60;padding:6px}.topbar-search-dropdown button{display:block;width:100%;text-align:left;padding:9px 12px;border-radius:7px}.topbar-search-dropdown button:hover{background:#f2f8f5}.topbar-search-dropdown button span{font-size:11px;color:var(--muted)}.topbar-search-dropdown button p{margin:3px 0 0;font-size:13px;color:#20342c;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.topbar-search-hint{margin:6px 10px;font-size:12px;color:var(--muted)}.topbar-search-formula{max-height:88px;overflow:hidden;margin:4px 0 0;font-size:13px;color:#121b2a}.review-block-float{position:absolute;background:#fffffff0;border-radius:6px;box-shadow:0 8px 22px #17203338;padding:6px 8px;z-index:15;font-size:13px;overflow:auto;min-height:34px;box-sizing:border-box}.review-block-float.before{border:2px solid #d64541}.review-block-float.after{border:2px solid #2f8f60}.review-block-empty{color:#8792a6;font-size:12px;margin:2px 0}.summary-meta-block{margin-left:0;display:inline-block;margin-top:6px}.upload-caveat{background:#fff7e4;border:1px solid #f0d99d;border-radius:5px;color:#83570e;padding:9px 12px;font-size:12.5px;line-height:1.6;margin:10px 0 0}.breadcrumb>*{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}@media(max-width:700px){.breadcrumb>*:not(.mobile-menu){display:none}.topbar-search-box{position:static;transform:none;width:auto;flex:1;min-width:0;padding:7px 12px}.topbar-search-box:focus-within{width:auto;box-shadow:0 4px 16px #0000000f}.topbar-search-dropdown{left:0;transform:none;min-width:0;width:100%}}@media(max-width:960px){.editor-grid>.source-panel{position:sticky;top:0;z-index:6}}.site-footer{padding:18px 28px 22px;text-align:center;font-size:12px;color:var(--muted)}.site-footer a{color:var(--muted);text-decoration:none}.site-footer a:hover{text-decoration:underline}.login-icp{margin-top:26px;text-align:center;font-size:12px;color:#849388}.login-icp a{color:#849388;text-decoration:none}.login-icp a:hover{text-decoration:underline}@font-face{font-display:block;font-family:KaTeX_AMS;font-style:normal;font-weight:400;src:url(/assets/KaTeX_AMS-Regular-BQhdFMY1.woff2) format("woff2"),url(/assets/KaTeX_AMS-Regular-DMm9YOAa.woff) format("woff"),url(/assets/KaTeX_AMS-Regular-DRggAlZN.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Caligraphic;font-style:normal;font-weight:700;src:url(/assets/KaTeX_Caligraphic-Bold-Dq_IR9rO.woff2) format("woff2"),url(/assets/KaTeX_Caligraphic-Bold-BEiXGLvX.woff) format("woff"),url(/assets/KaTeX_Caligraphic-Bold-ATXxdsX0.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Caligraphic;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Caligraphic-Regular-Di6jR-x-.woff2) format("woff2"),url(/assets/KaTeX_Caligraphic-Regular-CTRA-rTL.woff) format("woff"),url(/assets/KaTeX_Caligraphic-Regular-wX97UBjC.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Fraktur;font-style:normal;font-weight:700;src:url(/assets/KaTeX_Fraktur-Bold-CL6g_b3V.woff2) format("woff2"),url(/assets/KaTeX_Fraktur-Bold-BsDP51OF.woff) format("woff"),url(/assets/KaTeX_Fraktur-Bold-BdnERNNW.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Fraktur;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Fraktur-Regular-CTYiF6lA.woff2) format("woff2"),url(/assets/KaTeX_Fraktur-Regular-Dxdc4cR9.woff) format("woff"),url(/assets/KaTeX_Fraktur-Regular-CB_wures.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:normal;font-weight:700;src:url(/assets/KaTeX_Main-Bold-Cx986IdX.woff2) format("woff2"),url(/assets/KaTeX_Main-Bold-Jm3AIy58.woff) format("woff"),url(/assets/KaTeX_Main-Bold-waoOVXN0.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:italic;font-weight:700;src:url(/assets/KaTeX_Main-BoldItalic-DxDJ3AOS.woff2) format("woff2"),url(/assets/KaTeX_Main-BoldItalic-SpSLRI95.woff) format("woff"),url(/assets/KaTeX_Main-BoldItalic-DzxPMmG6.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:italic;font-weight:400;src:url(/assets/KaTeX_Main-Italic-NWA7e6Wa.woff2) format("woff2"),url(/assets/KaTeX_Main-Italic-BMLOBm91.woff) format("woff"),url(/assets/KaTeX_Main-Italic-3WenGoN9.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Main-Regular-B22Nviop.woff2) format("woff2"),url(/assets/KaTeX_Main-Regular-Dr94JaBh.woff) format("woff"),url(/assets/KaTeX_Main-Regular-ypZvNtVU.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Math;font-style:italic;font-weight:700;src:url(/assets/KaTeX_Math-BoldItalic-CZnvNsCZ.woff2) format("woff2"),url(/assets/KaTeX_Math-BoldItalic-iY-2wyZ7.woff) format("woff"),url(/assets/KaTeX_Math-BoldItalic-B3XSjfu4.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Math;font-style:italic;font-weight:400;src:url(/assets/KaTeX_Math-Italic-t53AETM-.woff2) format("woff2"),url(/assets/KaTeX_Math-Italic-DA0__PXp.woff) format("woff"),url(/assets/KaTeX_Math-Italic-flOr_0UB.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_SansSerif;font-style:normal;font-weight:700;src:url(/assets/KaTeX_SansSerif-Bold-D1sUS0GD.woff2) format("woff2"),url(/assets/KaTeX_SansSerif-Bold-DbIhKOiC.woff) format("woff"),url(/assets/KaTeX_SansSerif-Bold-CFMepnvq.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_SansSerif;font-style:italic;font-weight:400;src:url(/assets/KaTeX_SansSerif-Italic-C3H0VqGB.woff2) format("woff2"),url(/assets/KaTeX_SansSerif-Italic-DN2j7dab.woff) format("woff"),url(/assets/KaTeX_SansSerif-Italic-YYjJ1zSn.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_SansSerif;font-style:normal;font-weight:400;src:url(/assets/KaTeX_SansSerif-Regular-DDBCnlJ7.woff2) format("woff2"),url(/assets/KaTeX_SansSerif-Regular-CS6fqUqJ.woff) format("woff"),url(/assets/KaTeX_SansSerif-Regular-BNo7hRIc.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Script;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Script-Regular-D3wIWfF6.woff2) format("woff2"),url(/assets/KaTeX_Script-Regular-D5yQViql.woff) format("woff"),url(/assets/KaTeX_Script-Regular-C5JkGWo-.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size1;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Size1-Regular-mCD8mA8B.woff2) format("woff2"),url(/assets/KaTeX_Size1-Regular-C195tn64.woff) format("woff"),url(/assets/KaTeX_Size1-Regular-Dbsnue_I.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size2;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Size2-Regular-Dy4dx90m.woff2) format("woff2"),url(/assets/KaTeX_Size2-Regular-oD1tc_U0.woff) format("woff"),url(/assets/KaTeX_Size2-Regular-B7gKUWhC.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size3;font-style:normal;font-weight:400;src:url(data:font/woff2;base64,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) format("woff2"),url(/assets/KaTeX_Size3-Regular-CTq5MqoE.woff) format("woff"),url(/assets/KaTeX_Size3-Regular-DgpXs0kz.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size4;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Size4-Regular-Dl5lxZxV.woff2) format("woff2"),url(/assets/KaTeX_Size4-Regular-BF-4gkZK.woff) format("woff"),url(/assets/KaTeX_Size4-Regular-DWFBv043.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Typewriter;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Typewriter-Regular-CO6r4hn1.woff2) format("woff2"),url(/assets/KaTeX_Typewriter-Regular-C0xS9mPB.woff) format("woff"),url(/assets/KaTeX_Typewriter-Regular-D3Ib7_Hf.ttf) format("truetype")}.katex{font: 1.21em KaTeX_Main,Times New Roman,serif;line-height:1.2;position:relative;text-indent:0;text-rendering:auto}.katex *{-ms-high-contrast-adjust:none!important;border-color:currentColor}.katex .katex-version:after{content:"0.16.47"}.katex .katex-mathml{border:0;-webkit-clip-path:inset(50%);clip-path:inset(50%);height:1px;overflow:hidden;padding:0;position:absolute;width:1px}.katex .katex-html>.newline{display:block}.katex .base{position:relative;white-space:nowrap;width:-webkit-min-content;width:-moz-min-content;width:min-content}.katex .base,.katex .strut{display:inline-block}.katex .textbf{font-weight:700}.katex .textit{font-style:italic}.katex .textrm{font-family:KaTeX_Main}.katex .textsf{font-family:KaTeX_SansSerif}.katex .texttt{font-family:KaTeX_Typewriter}.katex .mathnormal{font-family:KaTeX_Math;font-style:italic}.katex .mathit{font-family:KaTeX_Main;font-style:italic}.katex .mathrm{font-style:normal}.katex .mathbf{font-family:KaTeX_Main;font-weight:700}.katex .boldsymbol{font-family:KaTeX_Math;font-style:italic;font-weight:700}.katex .amsrm,.katex .mathbb,.katex .textbb{font-family:KaTeX_AMS}.katex .mathcal{font-family:KaTeX_Caligraphic}.katex .mathfrak,.katex .textfrak{font-family:KaTeX_Fraktur}.katex .mathboldfrak,.katex .textboldfrak{font-family:KaTeX_Fraktur;font-weight:700}.katex .mathtt{font-family:KaTeX_Typewriter}.katex .mathscr,.katex .textscr{font-family:KaTeX_Script}.katex .mathsf,.katex .textsf{font-family:KaTeX_SansSerif}.katex .mathboldsf,.katex .textboldsf{font-family:KaTeX_SansSerif;font-weight:700}.katex .mathitsf,.katex .mathsfit,.katex .textitsf{font-family:KaTeX_SansSerif;font-style:italic}.katex .mainrm{font-family:KaTeX_Main;font-style:normal}.katex .vlist-t{border-collapse:collapse;display:inline-table;table-layout:fixed}.katex .vlist-r{display:table-row}.katex .vlist{display:table-cell;position:relative;vertical-align:bottom}.katex .vlist>span{display:block;height:0;position:relative}.katex .vlist>span>span{display:inline-block}.katex .vlist>span>.pstrut{overflow:hidden;width:0}.katex .vlist-t2{margin-right:-2px}.katex .vlist-s{display:table-cell;font-size:1px;min-width:2px;vertical-align:bottom;width:2px}.katex .vbox{align-items:baseline;display:inline-flex;flex-direction:column}.katex .hbox{width:100%}.katex .hbox,.katex .thinbox{display:inline-flex;flex-direction:row}.katex .thinbox{max-width:0;width:0}.katex .msupsub{text-align:left}.katex .mfrac>span>span{text-align:center}.katex .mfrac .frac-line{border-bottom-style:solid;display:inline-block;width:100%}.katex .hdashline,.katex .hline,.katex .mfrac .frac-line,.katex .overline .overline-line,.katex .rule,.katex .underline .underline-line{min-height:1px}.katex .mspace{display:inline-block}.katex .smash{display:inline;line-height:0}.katex .clap,.katex .llap,.katex .rlap{position:relative;width:0}.katex .clap>.inner,.katex .llap>.inner,.katex .rlap>.inner{position:absolute}.katex .clap>.fix,.katex .llap>.fix,.katex .rlap>.fix{display:inline-block}.katex .llap>.inner{right:0}.katex .clap>.inner,.katex .rlap>.inner{left:0}.katex .clap>.inner>span{margin-left:-50%;margin-right:50%}.katex .rule{border:0 solid;display:inline-block;position:relative}.katex .hline,.katex .overline .overline-line,.katex .underline .underline-line{border-bottom-style:solid;display:inline-block;width:100%}.katex .hdashline{border-bottom-style:dashed;display:inline-block;width:100%}.katex .sqrt>.root{margin-left:.2777777778em;margin-right:-.5555555556em}.katex .fontsize-ensurer.reset-size1.size1,.katex .sizing.reset-size1.size1{font-size:1em}.katex .fontsize-ensurer.reset-size1.size2,.katex .sizing.reset-size1.size2{font-size:1.2em}.katex .fontsize-ensurer.reset-size1.size3,.katex .sizing.reset-size1.size3{font-size:1.4em}.katex .fontsize-ensurer.reset-size1.size4,.katex .sizing.reset-size1.size4{font-size:1.6em}.katex .fontsize-ensurer.reset-size1.size5,.katex .sizing.reset-size1.size5{font-size:1.8em}.katex .fontsize-ensurer.reset-size1.size6,.katex .sizing.reset-size1.size6{font-size:2em}.katex .fontsize-ensurer.reset-size1.size7,.katex .sizing.reset-size1.size7{font-size:2.4em}.katex .fontsize-ensurer.reset-size1.size8,.katex .sizing.reset-size1.size8{font-size:2.88em}.katex .fontsize-ensurer.reset-size1.size9,.katex .sizing.reset-size1.size9{font-size:3.456em}.katex .fontsize-ensurer.reset-size1.size10,.katex .sizing.reset-size1.size10{font-size:4.148em}.katex .fontsize-ensurer.reset-size1.size11,.katex .sizing.reset-size1.size11{font-size:4.976em}.katex .fontsize-ensurer.reset-size2.size1,.katex .sizing.reset-size2.size1{font-size:.8333333333em}.katex .fontsize-ensurer.reset-size2.size2,.katex .sizing.reset-size2.size2{font-size:1em}.katex .fontsize-ensurer.reset-size2.size3,.katex .sizing.reset-size2.size3{font-size:1.1666666667em}.katex .fontsize-ensurer.reset-size2.size4,.katex .sizing.reset-size2.size4{font-size:1.3333333333em}.katex .fontsize-ensurer.reset-size2.size5,.katex .sizing.reset-size2.size5{font-size:1.5em}.katex .fontsize-ensurer.reset-size2.size6,.katex .sizing.reset-size2.size6{font-size:1.6666666667em}.katex .fontsize-ensurer.reset-size2.size7,.katex .sizing.reset-size2.size7{font-size:2em}.katex .fontsize-ensurer.reset-size2.size8,.katex .sizing.reset-size2.size8{font-size:2.4em}.katex .fontsize-ensurer.reset-size2.size9,.katex .sizing.reset-size2.size9{font-size:2.88em}.katex .fontsize-ensurer.reset-size2.size10,.katex .sizing.reset-size2.size10{font-size:3.4566666667em}.katex .fontsize-ensurer.reset-size2.size11,.katex .sizing.reset-size2.size11{font-size:4.1466666667em}.katex .fontsize-ensurer.reset-size3.size1,.katex .sizing.reset-size3.size1{font-size:.7142857143em}.katex .fontsize-ensurer.reset-size3.size2,.katex .sizing.reset-size3.size2{font-size:.8571428571em}.katex .fontsize-ensurer.reset-size3.size3,.katex .sizing.reset-size3.size3{font-size:1em}.katex .fontsize-ensurer.reset-size3.size4,.katex .sizing.reset-size3.size4{font-size:1.1428571429em}.katex .fontsize-ensurer.reset-size3.size5,.katex .sizing.reset-size3.size5{font-size:1.2857142857em}.katex .fontsize-ensurer.reset-size3.size6,.katex .sizing.reset-size3.size6{font-size:1.4285714286em}.katex .fontsize-ensurer.reset-size3.size7,.katex .sizing.reset-size3.size7{font-size:1.7142857143em}.katex .fontsize-ensurer.reset-size3.size8,.katex .sizing.reset-size3.size8{font-size:2.0571428571em}.katex .fontsize-ensurer.reset-size3.size9,.katex .sizing.reset-size3.size9{font-size:2.4685714286em}.katex .fontsize-ensurer.reset-size3.size10,.katex .sizing.reset-size3.size10{font-size:2.9628571429em}.katex .fontsize-ensurer.reset-size3.size11,.katex .sizing.reset-size3.size11{font-size:3.5542857143em}.katex .fontsize-ensurer.reset-size4.size1,.katex .sizing.reset-size4.size1{font-size:.625em}.katex .fontsize-ensurer.reset-size4.size2,.katex .sizing.reset-size4.size2{font-size:.75em}.katex .fontsize-ensurer.reset-size4.size3,.katex .sizing.reset-size4.size3{font-size:.875em}.katex .fontsize-ensurer.reset-size4.size4,.katex .sizing.reset-size4.size4{font-size:1em}.katex .fontsize-ensurer.reset-size4.size5,.katex .sizing.reset-size4.size5{font-size:1.125em}.katex .fontsize-ensurer.reset-size4.size6,.katex .sizing.reset-size4.size6{font-size:1.25em}.katex .fontsize-ensurer.reset-size4.size7,.katex .sizing.reset-size4.size7{font-size:1.5em}.katex .fontsize-ensurer.reset-size4.size8,.katex .sizing.reset-size4.size8{font-size:1.8em}.katex .fontsize-ensurer.reset-size4.size9,.katex .sizing.reset-size4.size9{font-size:2.16em}.katex .fontsize-ensurer.reset-size4.size10,.katex .sizing.reset-size4.size10{font-size:2.5925em}.katex .fontsize-ensurer.reset-size4.size11,.katex .sizing.reset-size4.size11{font-size:3.11em}.katex .fontsize-ensurer.reset-size5.size1,.katex .sizing.reset-size5.size1{font-size:.5555555556em}.katex .fontsize-ensurer.reset-size5.size2,.katex .sizing.reset-size5.size2{font-size:.6666666667em}.katex .fontsize-ensurer.reset-size5.size3,.katex .sizing.reset-size5.size3{font-size:.7777777778em}.katex .fontsize-ensurer.reset-size5.size4,.katex .sizing.reset-size5.size4{font-size:.8888888889em}.katex .fontsize-ensurer.reset-size5.size5,.katex .sizing.reset-size5.size5{font-size:1em}.katex .fontsize-ensurer.reset-size5.size6,.katex .sizing.reset-size5.size6{font-size:1.1111111111em}.katex .fontsize-ensurer.reset-size5.size7,.katex .sizing.reset-size5.size7{font-size:1.3333333333em}.katex .fontsize-ensurer.reset-size5.size8,.katex .sizing.reset-size5.size8{font-size:1.6em}.katex .fontsize-ensurer.reset-size5.size9,.katex .sizing.reset-size5.size9{font-size:1.92em}.katex .fontsize-ensurer.reset-size5.size10,.katex .sizing.reset-size5.size10{font-size:2.3044444444em}.katex .fontsize-ensurer.reset-size5.size11,.katex .sizing.reset-size5.size11{font-size:2.7644444444em}.katex .fontsize-ensurer.reset-size6.size1,.katex .sizing.reset-size6.size1{font-size:.5em}.katex .fontsize-ensurer.reset-size6.size2,.katex .sizing.reset-size6.size2{font-size:.6em}.katex .fontsize-ensurer.reset-size6.size3,.katex .sizing.reset-size6.size3{font-size:.7em}.katex .fontsize-ensurer.reset-size6.size4,.katex .sizing.reset-size6.size4{font-size:.8em}.katex .fontsize-ensurer.reset-size6.size5,.katex .sizing.reset-size6.size5{font-size:.9em}.katex .fontsize-ensurer.reset-size6.size6,.katex .sizing.reset-size6.size6{font-size:1em}.katex .fontsize-ensurer.reset-size6.size7,.katex .sizing.reset-size6.size7{font-size:1.2em}.katex .fontsize-ensurer.reset-size6.size8,.katex .sizing.reset-size6.size8{font-size:1.44em}.katex .fontsize-ensurer.reset-size6.size9,.katex .sizing.reset-size6.size9{font-size:1.728em}.katex .fontsize-ensurer.reset-size6.size10,.katex .sizing.reset-size6.size10{font-size:2.074em}.katex .fontsize-ensurer.reset-size6.size11,.katex .sizing.reset-size6.size11{font-size:2.488em}.katex .fontsize-ensurer.reset-size7.size1,.katex .sizing.reset-size7.size1{font-size:.4166666667em}.katex .fontsize-ensurer.reset-size7.size2,.katex .sizing.reset-size7.size2{font-size:.5em}.katex .fontsize-ensurer.reset-size7.size3,.katex .sizing.reset-size7.size3{font-size:.5833333333em}.katex .fontsize-ensurer.reset-size7.size4,.katex .sizing.reset-size7.size4{font-size:.6666666667em}.katex .fontsize-ensurer.reset-size7.size5,.katex .sizing.reset-size7.size5{font-size:.75em}.katex .fontsize-ensurer.reset-size7.size6,.katex .sizing.reset-size7.size6{font-size:.8333333333em}.katex .fontsize-ensurer.reset-size7.size7,.katex .sizing.reset-size7.size7{font-size:1em}.katex .fontsize-ensurer.reset-size7.size8,.katex .sizing.reset-size7.size8{font-size:1.2em}.katex .fontsize-ensurer.reset-size7.size9,.katex .sizing.reset-size7.size9{font-size:1.44em}.katex .fontsize-ensurer.reset-size7.size10,.katex .sizing.reset-size7.size10{font-size:1.7283333333em}.katex .fontsize-ensurer.reset-size7.size11,.katex .sizing.reset-size7.size11{font-size:2.0733333333em}.katex .fontsize-ensurer.reset-size8.size1,.katex .sizing.reset-size8.size1{font-size:.3472222222em}.katex .fontsize-ensurer.reset-size8.size2,.katex .sizing.reset-size8.size2{font-size:.4166666667em}.katex .fontsize-ensurer.reset-size8.size3,.katex .sizing.reset-size8.size3{font-size:.4861111111em}.katex .fontsize-ensurer.reset-size8.size4,.katex .sizing.reset-size8.size4{font-size:.5555555556em}.katex .fontsize-ensurer.reset-size8.size5,.katex .sizing.reset-size8.size5{font-size:.625em}.katex .fontsize-ensurer.reset-size8.size6,.katex .sizing.reset-size8.size6{font-size:.6944444444em}.katex .fontsize-ensurer.reset-size8.size7,.katex .sizing.reset-size8.size7{font-size:.8333333333em}.katex .fontsize-ensurer.reset-size8.size8,.katex .sizing.reset-size8.size8{font-size:1em}.katex .fontsize-ensurer.reset-size8.size9,.katex .sizing.reset-size8.size9{font-size:1.2em}.katex .fontsize-ensurer.reset-size8.size10,.katex .sizing.reset-size8.size10{font-size:1.4402777778em}.katex .fontsize-ensurer.reset-size8.size11,.katex .sizing.reset-size8.size11{font-size:1.7277777778em}.katex .fontsize-ensurer.reset-size9.size1,.katex .sizing.reset-size9.size1{font-size:.2893518519em}.katex .fontsize-ensurer.reset-size9.size2,.katex .sizing.reset-size9.size2{font-size:.3472222222em}.katex .fontsize-ensurer.reset-size9.size3,.katex .sizing.reset-size9.size3{font-size:.4050925926em}.katex .fontsize-ensurer.reset-size9.size4,.katex .sizing.reset-size9.size4{font-size:.462962963em}.katex .fontsize-ensurer.reset-size9.size5,.katex .sizing.reset-size9.size5{font-size:.5208333333em}.katex .fontsize-ensurer.reset-size9.size6,.katex .sizing.reset-size9.size6{font-size:.5787037037em}.katex .fontsize-ensurer.reset-size9.size7,.katex .sizing.reset-size9.size7{font-size:.6944444444em}.katex .fontsize-ensurer.reset-size9.size8,.katex .sizing.reset-size9.size8{font-size:.8333333333em}.katex .fontsize-ensurer.reset-size9.size9,.katex .sizing.reset-size9.size9{font-size:1em}.katex .fontsize-ensurer.reset-size9.size10,.katex .sizing.reset-size9.size10{font-size:1.2002314815em}.katex .fontsize-ensurer.reset-size9.size11,.katex .sizing.reset-size9.size11{font-size:1.4398148148em}.katex .fontsize-ensurer.reset-size10.size1,.katex .sizing.reset-size10.size1{font-size:.2410800386em}.katex .fontsize-ensurer.reset-size10.size2,.katex .sizing.reset-size10.size2{font-size:.2892960463em}.katex .fontsize-ensurer.reset-size10.size3,.katex .sizing.reset-size10.size3{font-size:.337512054em}.katex .fontsize-ensurer.reset-size10.size4,.katex .sizing.reset-size10.size4{font-size:.3857280617em}.katex .fontsize-ensurer.reset-size10.size5,.katex .sizing.reset-size10.size5{font-size:.4339440694em}.katex .fontsize-ensurer.reset-size10.size6,.katex .sizing.reset-size10.size6{font-size:.4821600771em}.katex .fontsize-ensurer.reset-size10.size7,.katex .sizing.reset-size10.size7{font-size:.5785920926em}.katex .fontsize-ensurer.reset-size10.size8,.katex .sizing.reset-size10.size8{font-size:.6943105111em}.katex .fontsize-ensurer.reset-size10.size9,.katex .sizing.reset-size10.size9{font-size:.8331726133em}.katex .fontsize-ensurer.reset-size10.size10,.katex .sizing.reset-size10.size10{font-size:1em}.katex .fontsize-ensurer.reset-size10.size11,.katex .sizing.reset-size10.size11{font-size:1.1996142719em}.katex .fontsize-ensurer.reset-size11.size1,.katex .sizing.reset-size11.size1{font-size:.2009646302em}.katex .fontsize-ensurer.reset-size11.size2,.katex .sizing.reset-size11.size2{font-size:.2411575563em}.katex .fontsize-ensurer.reset-size11.size3,.katex .sizing.reset-size11.size3{font-size:.2813504823em}.katex .fontsize-ensurer.reset-size11.size4,.katex .sizing.reset-size11.size4{font-size:.3215434084em}.katex .fontsize-ensurer.reset-size11.size5,.katex .sizing.reset-size11.size5{font-size:.3617363344em}.katex .fontsize-ensurer.reset-size11.size6,.katex .sizing.reset-size11.size6{font-size:.4019292605em}.katex .fontsize-ensurer.reset-size11.size7,.katex .sizing.reset-size11.size7{font-size:.4823151125em}.katex .fontsize-ensurer.reset-size11.size8,.katex .sizing.reset-size11.size8{font-size:.578778135em}.katex .fontsize-ensurer.reset-size11.size9,.katex .sizing.reset-size11.size9{font-size:.6945337621em}.katex .fontsize-ensurer.reset-size11.size10,.katex .sizing.reset-size11.size10{font-size:.8336012862em}.katex .fontsize-ensurer.reset-size11.size11,.katex .sizing.reset-size11.size11{font-size:1em}.katex .delimsizing.size1{font-family:KaTeX_Size1}.katex .delimsizing.size2{font-family:KaTeX_Size2}.katex .delimsizing.size3{font-family:KaTeX_Size3}.katex .delimsizing.size4{font-family:KaTeX_Size4}.katex .delimsizing.mult .delim-size1>span{font-family:KaTeX_Size1}.katex .delimsizing.mult .delim-size4>span{font-family:KaTeX_Size4}.katex .nulldelimiter{display:inline-block;width:.12em}.katex .delimcenter,.katex .op-symbol{position:relative}.katex .op-symbol.small-op{font-family:KaTeX_Size1}.katex .op-symbol.large-op{font-family:KaTeX_Size2}.katex .accent>.vlist-t,.katex .op-limits>.vlist-t{text-align:center}.katex .accent .accent-body{position:relative}.katex .accent .accent-body:not(.accent-full){width:0}.katex .overlay{display:block}.katex .mtable .vertical-separator{display:inline-block;min-width:1px}.katex .mtable .arraycolsep{display:inline-block}.katex .mtable .col-align-c>.vlist-t{text-align:center}.katex .mtable .col-align-l>.vlist-t{text-align:left}.katex .mtable .col-align-r>.vlist-t{text-align:right}.katex .svg-align{text-align:left}.katex svg{fill:currentColor;stroke:currentColor;display:block;height:inherit;position:absolute;width:100%}.katex svg path{stroke:none}.katex svg{fill-rule:nonzero;fill-opacity:1;stroke-width:1;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1}.katex img{border-style:none;max-height:none;max-width:none;min-height:0;min-width:0}.katex .stretchy{display:block;overflow:hidden;position:relative;width:100%}.katex .stretchy:after,.katex .stretchy:before{content:""}.katex .hide-tail{overflow:hidden;position:relative;width:100%}.katex .halfarrow-left{left:0;overflow:hidden;position:absolute;width:50.2%}.katex .halfarrow-right{overflow:hidden;position:absolute;right:0;width:50.2%}.katex .brace-left{left:0;overflow:hidden;position:absolute;width:25.1%}.katex .brace-center{left:25%;overflow:hidden;position:absolute;width:50%}.katex .brace-right{overflow:hidden;position:absolute;right:0;width:25.1%}.katex .x-arrow-pad{padding:0 .5em}.katex .cd-arrow-pad{padding:0 .55556em 0 .27778em}.katex .mover,.katex .munder,.katex .x-arrow{text-align:center}.katex .boxpad{padding:0 .3em}.katex .fbox,.katex .fcolorbox{border:.04em solid;box-sizing:border-box}.katex .cancel-pad{padding:0 .2em}.katex .cancel-lap{margin-left:-.2em;margin-right:-.2em}.katex .sout{border-bottom-style:solid;border-bottom-width:.08em}.katex .angl{border-right:.049em solid;border-top:.049em solid;box-sizing:border-box;margin-right:.03889em}.katex .anglpad{padding:0 .03889em}.katex .eqn-num:before{content:"(" counter(katexEqnNo) ")";counter-increment:katexEqnNo}.katex .mml-eqn-num:before{content:"(" counter(mmlEqnNo) ")";counter-increment:mmlEqnNo}.katex .mtr-glue{width:50%}.katex .cd-vert-arrow{display:inline-block;position:relative}.katex .cd-label-left{display:inline-block;position:absolute;right:calc(50% + .3em);text-align:left}.katex .cd-label-right{display:inline-block;left:calc(50% + .3em);position:absolute;text-align:right}.katex-display{display:block;margin:1em 0;text-align:center}.katex-display>.katex{display:block;text-align:center;white-space:nowrap}.katex-display>.katex>.katex-html{display:block;position:relative}.katex-display>.katex>.katex-html>.tag{position:absolute;right:0}.katex-display.leqno>.katex>.katex-html>.tag{left:0;right:auto}.katex-display.fleqn>.katex{padding-left:2em;text-align:left}body{counter-reset:katexEqnNo mmlEqnNo}
