@font-face{font-display:block;font-family:KaTeX_AMS;font-style:normal;font-weight:400;src:url(../media/KaTeX_AMS-Regular.25ieegmnh38ts.woff2)format("woff2"),url(../media/KaTeX_AMS-Regular.10y3kupq4t663.woff)format("woff"),url(../media/KaTeX_AMS-Regular.418dr7cz3fo2x.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Caligraphic;font-style:normal;font-weight:700;src:url(../media/KaTeX_Caligraphic-Bold.06b-ya9t43ioz.woff2)format("woff2"),url(../media/KaTeX_Caligraphic-Bold.2vmk2hva4ctha.woff)format("woff"),url(../media/KaTeX_Caligraphic-Bold.40ltxhe834pns.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Caligraphic;font-style:normal;font-weight:400;src:url(../media/KaTeX_Caligraphic-Regular.2eph4dlhid_m9.woff2)format("woff2"),url(../media/KaTeX_Caligraphic-Regular.3gxeetazf831f.woff)format("woff"),url(../media/KaTeX_Caligraphic-Regular.07-7u27-nhn_r.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Fraktur;font-style:normal;font-weight:700;src:url(../media/KaTeX_Fraktur-Bold.2sasz-d-jtw8y.woff2)format("woff2"),url(../media/KaTeX_Fraktur-Bold.1alcy76__wdj2.woff)format("woff"),url(../media/KaTeX_Fraktur-Bold.19yqa_tc9d_gx.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Fraktur;font-style:normal;font-weight:400;src:url(../media/KaTeX_Fraktur-Regular.2d10y4xmjvzlf.woff2)format("woff2"),url(../media/KaTeX_Fraktur-Regular.110oo81prr9n5.woff)format("woff"),url(../media/KaTeX_Fraktur-Regular.2qhy34r6a05dn.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:normal;font-weight:700;src:url(../media/KaTeX_Main-Bold.3-rowy8o6_4ky.woff2)format("woff2"),url(../media/KaTeX_Main-Bold.0v1esh257kqpe.woff)format("woff"),url(../media/KaTeX_Main-Bold.0us_n0tnxlxu7.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:italic;font-weight:700;src:url(../media/KaTeX_Main-BoldItalic.14r2naom8mrec.woff2)format("woff2"),url(../media/KaTeX_Main-BoldItalic.13355ck5zr48q.woff)format("woff"),url(../media/KaTeX_Main-BoldItalic.3x_u9cepaced0.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:italic;font-weight:400;src:url(../media/KaTeX_Main-Italic.0lig0v9j0700p.woff2)format("woff2"),url(../media/KaTeX_Main-Italic.0afv392dj4w59.woff)format("woff"),url(../media/KaTeX_Main-Italic.2hkw3230mfwcv.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:normal;font-weight:400;src:url(../media/KaTeX_Main-Regular.1ryvsdzh2w1_e.woff2)format("woff2"),url(../media/KaTeX_Main-Regular.15u8r3b2y7fv4.woff)format("woff"),url(../media/KaTeX_Main-Regular.0symfa7dqj6jd.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Math;font-style:italic;font-weight:700;src:url(../media/KaTeX_Math-BoldItalic.1oopuu636h4il.woff2)format("woff2"),url(../media/KaTeX_Math-BoldItalic.12pl58orkw9rg.woff)format("woff"),url(../media/KaTeX_Math-BoldItalic.0y5w36a5aq__2.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Math;font-style:italic;font-weight:400;src:url(../media/KaTeX_Math-Italic.32405s1aq8vas.woff2)format("woff2"),url(../media/KaTeX_Math-Italic.0w0b1ugh62cfr.woff)format("woff"),url(../media/KaTeX_Math-Italic.2vkekfblmz5nb.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_SansSerif;font-style:normal;font-weight:700;src:url(../media/KaTeX_SansSerif-Bold.0h3wi2z_eouyg.woff2)format("woff2"),url(../media/KaTeX_SansSerif-Bold.1ovw5p-yjp56g.woff)format("woff"),url(../media/KaTeX_SansSerif-Bold.2d03q85pwxpti.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_SansSerif;font-style:italic;font-weight:400;src:url(../media/KaTeX_SansSerif-Italic.0wkjc4dm2kcit.woff2)format("woff2"),url(../media/KaTeX_SansSerif-Italic.1qavw__2zz8gk.woff)format("woff"),url(../media/KaTeX_SansSerif-Italic.3i-q087b23-m8.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_SansSerif;font-style:normal;font-weight:400;src:url(../media/KaTeX_SansSerif-Regular.2peiewu59z3d-.woff2)format("woff2"),url(../media/KaTeX_SansSerif-Regular.1i4afx8nk8n4r.woff)format("woff"),url(../media/KaTeX_SansSerif-Regular.31pbu25feko_c.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Script;font-style:normal;font-weight:400;src:url(../media/KaTeX_Script-Regular.11h14300o9pd0.woff2)format("woff2"),url(../media/KaTeX_Script-Regular.3110jb9c-bxna.woff)format("woff"),url(../media/KaTeX_Script-Regular.28p_x7iz71ofe.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size1;font-style:normal;font-weight:400;src:url(../media/KaTeX_Size1-Regular.03lhvx36ekcou.woff2)format("woff2"),url(../media/KaTeX_Size1-Regular.1slf4bh0hc6vm.woff)format("woff"),url(../media/KaTeX_Size1-Regular.1y57-ck23ey8c.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size2;font-style:normal;font-weight:400;src:url(../media/KaTeX_Size2-Regular.14s5gg-puz6h-.woff2)format("woff2"),url(../media/KaTeX_Size2-Regular.0-kwyvx03omo8.woff)format("woff"),url(../media/KaTeX_Size2-Regular.2u0s-b07k2o9m.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size3;font-style:normal;font-weight:400;src:url(../media/KaTeX_Size3-Regular.1n1rgzz84z8r9.woff2)format("woff2"),url(../media/KaTeX_Size3-Regular.04o9a_02gu_e8.woff)format("woff"),url(../media/KaTeX_Size3-Regular.1pkn-dge4q0fv.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size4;font-style:normal;font-weight:400;src:url(../media/KaTeX_Size4-Regular.2sgotkdv3dcyv.woff2)format("woff2"),url(../media/KaTeX_Size4-Regular.3p2r1l7xmebxv.woff)format("woff"),url(../media/KaTeX_Size4-Regular.2uelkfk2yna5e.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Typewriter;font-style:normal;font-weight:400;src:url(../media/KaTeX_Typewriter-Regular.11gr2d2wuwz77.woff2)format("woff2"),url(../media/KaTeX_Typewriter-Regular.12f8myjij3617.woff)format("woff"),url(../media/KaTeX_Typewriter-Regular.3nee9kjfy6nm8.ttf)format("truetype")}.katex{text-indent:0;text-rendering:auto;font:1.21em/1.2 KaTeX_Main,Times New Roman,serif;position:relative}.katex *{border-color:currentColor;-ms-high-contrast-adjust:none!important}.katex .katex-version:after{content:"0.16.47"}.katex .katex-mathml{clip-path:inset(50%);border:0;width:1px;height:1px;padding:0;position:absolute;overflow:hidden}.katex .katex-html>.newline{display:block}.katex .base{white-space:nowrap;width:min-content;position:relative}.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;table-layout:fixed;display:inline-table}.katex .vlist-r{display:table-row}.katex .vlist{vertical-align:bottom;display:table-cell;position:relative}.katex .vlist>span{height:0;display:block;position:relative}.katex .vlist>span>span{display:inline-block}.katex .vlist>span>.pstrut{width:0;overflow:hidden}.katex .vlist-t2{margin-right:-2px}.katex .vlist-s{vertical-align:bottom;width:2px;min-width:2px;font-size:1px;display:table-cell}.katex .vbox{flex-direction:column;align-items:baseline;display:inline-flex}.katex .hbox{width:100%}.katex .hbox,.katex .thinbox{flex-direction:row;display:inline-flex}.katex .thinbox{width:0;max-width:0}.katex .msupsub{text-align:left}.katex .mfrac>span>span{text-align:center}.katex .mfrac .frac-line{border-bottom-style:solid;width:100%;display:inline-block}.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{line-height:0;display:inline}.katex .clap,.katex .llap,.katex .rlap{width:0;position:relative}.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;width:100%;display:inline-block}.katex .hdashline{border-bottom-style:dashed;width:100%;display:inline-block}.katex .sqrt>.root{margin-left:.277778em;margin-right:-.555556em}.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:.833333em}.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:1.16667em}.katex .fontsize-ensurer.reset-size2.size4,.katex .sizing.reset-size2.size4{font-size:1.33333em}.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:1.66667em}.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:3.45667em}.katex .fontsize-ensurer.reset-size2.size11,.katex .sizing.reset-size2.size11{font-size:4.14667em}.katex .fontsize-ensurer.reset-size3.size1,.katex .sizing.reset-size3.size1{font-size:.714286em}.katex .fontsize-ensurer.reset-size3.size2,.katex .sizing.reset-size3.size2{font-size:.857143em}.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:1.14286em}.katex .fontsize-ensurer.reset-size3.size5,.katex .sizing.reset-size3.size5{font-size:1.28571em}.katex .fontsize-ensurer.reset-size3.size6,.katex .sizing.reset-size3.size6{font-size:1.42857em}.katex .fontsize-ensurer.reset-size3.size7,.katex .sizing.reset-size3.size7{font-size:1.71429em}.katex .fontsize-ensurer.reset-size3.size8,.katex .sizing.reset-size3.size8{font-size:2.05714em}.katex .fontsize-ensurer.reset-size3.size9,.katex .sizing.reset-size3.size9{font-size:2.46857em}.katex .fontsize-ensurer.reset-size3.size10,.katex .sizing.reset-size3.size10{font-size:2.96286em}.katex .fontsize-ensurer.reset-size3.size11,.katex .sizing.reset-size3.size11{font-size:3.55429em}.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:.555556em}.katex .fontsize-ensurer.reset-size5.size2,.katex .sizing.reset-size5.size2{font-size:.666667em}.katex .fontsize-ensurer.reset-size5.size3,.katex .sizing.reset-size5.size3{font-size:.777778em}.katex .fontsize-ensurer.reset-size5.size4,.katex .sizing.reset-size5.size4{font-size:.888889em}.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:1.11111em}.katex .fontsize-ensurer.reset-size5.size7,.katex .sizing.reset-size5.size7{font-size:1.33333em}.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:2.30444em}.katex .fontsize-ensurer.reset-size5.size11,.katex .sizing.reset-size5.size11{font-size:2.76444em}.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:.416667em}.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:.583333em}.katex .fontsize-ensurer.reset-size7.size4,.katex .sizing.reset-size7.size4{font-size:.666667em}.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:.833333em}.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:1.72833em}.katex .fontsize-ensurer.reset-size7.size11,.katex .sizing.reset-size7.size11{font-size:2.07333em}.katex .fontsize-ensurer.reset-size8.size1,.katex .sizing.reset-size8.size1{font-size:.347222em}.katex .fontsize-ensurer.reset-size8.size2,.katex .sizing.reset-size8.size2{font-size:.416667em}.katex .fontsize-ensurer.reset-size8.size3,.katex .sizing.reset-size8.size3{font-size:.486111em}.katex .fontsize-ensurer.reset-size8.size4,.katex .sizing.reset-size8.size4{font-size:.555556em}.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:.694444em}.katex .fontsize-ensurer.reset-size8.size7,.katex .sizing.reset-size8.size7{font-size:.833333em}.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:1.44028em}.katex .fontsize-ensurer.reset-size8.size11,.katex .sizing.reset-size8.size11{font-size:1.72778em}.katex .fontsize-ensurer.reset-size9.size1,.katex .sizing.reset-size9.size1{font-size:.289352em}.katex .fontsize-ensurer.reset-size9.size2,.katex .sizing.reset-size9.size2{font-size:.347222em}.katex .fontsize-ensurer.reset-size9.size3,.katex .sizing.reset-size9.size3{font-size:.405093em}.katex .fontsize-ensurer.reset-size9.size4,.katex .sizing.reset-size9.size4{font-size:.462963em}.katex .fontsize-ensurer.reset-size9.size5,.katex .sizing.reset-size9.size5{font-size:.520833em}.katex .fontsize-ensurer.reset-size9.size6,.katex .sizing.reset-size9.size6{font-size:.578704em}.katex .fontsize-ensurer.reset-size9.size7,.katex .sizing.reset-size9.size7{font-size:.694444em}.katex .fontsize-ensurer.reset-size9.size8,.katex .sizing.reset-size9.size8{font-size:.833333em}.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:1.20023em}.katex .fontsize-ensurer.reset-size9.size11,.katex .sizing.reset-size9.size11{font-size:1.43981em}.katex .fontsize-ensurer.reset-size10.size1,.katex .sizing.reset-size10.size1{font-size:.24108em}.katex .fontsize-ensurer.reset-size10.size2,.katex .sizing.reset-size10.size2{font-size:.289296em}.katex .fontsize-ensurer.reset-size10.size3,.katex .sizing.reset-size10.size3{font-size:.337512em}.katex .fontsize-ensurer.reset-size10.size4,.katex .sizing.reset-size10.size4{font-size:.385728em}.katex .fontsize-ensurer.reset-size10.size5,.katex .sizing.reset-size10.size5{font-size:.433944em}.katex .fontsize-ensurer.reset-size10.size6,.katex .sizing.reset-size10.size6{font-size:.48216em}.katex .fontsize-ensurer.reset-size10.size7,.katex .sizing.reset-size10.size7{font-size:.578592em}.katex .fontsize-ensurer.reset-size10.size8,.katex .sizing.reset-size10.size8{font-size:.694311em}.katex .fontsize-ensurer.reset-size10.size9,.katex .sizing.reset-size10.size9{font-size:.833173em}.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:1.19961em}.katex .fontsize-ensurer.reset-size11.size1,.katex .sizing.reset-size11.size1{font-size:.200965em}.katex .fontsize-ensurer.reset-size11.size2,.katex .sizing.reset-size11.size2{font-size:.241158em}.katex .fontsize-ensurer.reset-size11.size3,.katex .sizing.reset-size11.size3{font-size:.281351em}.katex .fontsize-ensurer.reset-size11.size4,.katex .sizing.reset-size11.size4{font-size:.321543em}.katex .fontsize-ensurer.reset-size11.size5,.katex .sizing.reset-size11.size5{font-size:.361736em}.katex .fontsize-ensurer.reset-size11.size6,.katex .sizing.reset-size11.size6{font-size:.401929em}.katex .fontsize-ensurer.reset-size11.size7,.katex .sizing.reset-size11.size7{font-size:.482315em}.katex .fontsize-ensurer.reset-size11.size8,.katex .sizing.reset-size11.size8{font-size:.578778em}.katex .fontsize-ensurer.reset-size11.size9,.katex .sizing.reset-size11.size9{font-size:.694534em}.katex .fontsize-ensurer.reset-size11.size10,.katex .sizing.reset-size11.size10{font-size:.833601em}.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{width:.12em;display:inline-block}.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{min-width:1px;display:inline-block}.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;height:inherit;width:100%;display:block;position:absolute}.katex svg path{stroke:none}.katex svg{fill-rule:nonzero;fill-opacity:1;stroke-width:1px;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1}.katex img{border-style:none;min-width:0;max-width:none;min-height:0;max-height:none}.katex .stretchy{width:100%;display:block;position:relative;overflow:hidden}.katex .stretchy:after,.katex .stretchy:before{content:""}.katex .hide-tail{width:100%;position:relative;overflow:hidden}.katex .halfarrow-left{width:50.2%;position:absolute;left:0;overflow:hidden}.katex .halfarrow-right{width:50.2%;position:absolute;right:0;overflow:hidden}.katex .brace-left{width:25.1%;position:absolute;left:0;overflow:hidden}.katex .brace-center{width:50%;position:absolute;left:25%;overflow:hidden}.katex .brace-right{width:25.1%;position:absolute;right:0;overflow:hidden}.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{box-sizing:border-box;border:.04em solid}.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{box-sizing:border-box;border-top:.049em solid;border-right:.049em solid;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{text-align:left;display:inline-block;position:absolute;right:calc(50% + .3em)}.katex .cd-label-right{text-align:right;display:inline-block;position:absolute;left:calc(50% + .3em)}.katex-display{text-align:center;margin:1em 0;display:block}.katex-display>.katex{text-align:center;white-space:nowrap;display:block}.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{text-align:left;padding-left:2em}body{counter-reset:katexEqnNo mmlEqnNo}
:root{--bg:#f5f6f2;--paper:#fff;--ink:#24352e;--muted:#7c867f;--green:#315b48;--line:#e5e9e2;--soft:#edf2eb;--serif:"Noto Serif SC","Songti SC","STSong",serif}*{box-sizing:border-box}body{background:var(--bg);color:var(--ink);margin:0;font-family:Inter,Microsoft YaHei,PingFang SC,sans-serif;font-size:14px;line-height:1.7}button,input,textarea,select{font:inherit}button,a,input,textarea,select{-webkit-tap-highlight-color:transparent}button{cursor:pointer;transition:background .16s,transform .16s}button:disabled{opacity:.55;cursor:wait}button:hover:not(:disabled){filter:brightness(.97)}button:focus-visible,a:focus-visible{outline-offset:3px;outline:3px solid #afcbb8}input:focus,textarea:focus,select:focus{border-color:#87a891;outline:2px solid #b6cbbd}h1,h2,h3,p{margin-top:0}h1{font-family:var(--serif);letter-spacing:1px;margin-bottom:8px;font-size:35px;font-weight:600}h2{font-size:19px;font-weight:600;line-height:1.5}h3{font-size:17px;line-height:1.5}p{margin-bottom:14px}button{border:0}a{color:inherit;text-decoration:none}label{font-size:13px;font-weight:600;display:block}input:not([type=file]),textarea,select{width:100%;color:var(--ink);background:#fff;border:1px solid #dfe5dc;border-radius:8px;margin-top:7px;padding:11px 13px}textarea{resize:vertical;font-weight:400;line-height:1.7}label+label{margin-top:16px}.muted{color:var(--muted)}.small{font-size:12px}.eyebrow{letter-spacing:2.4px;color:#8a988b;margin-bottom:14px;font-size:10px;font-weight:600;display:block}.primary,.secondary,.hero-button{white-space:nowrap;border-radius:8px;justify-content:center;align-items:center;gap:9px;padding:11px 19px;font-weight:500;display:inline-flex}.primary{background:var(--green);color:#fff}.secondary{border:1px solid var(--line);color:var(--ink);background:#fff}.wide{width:100%;margin-top:23px}.text-button{color:var(--green);background:0 0;align-items:center;gap:7px;padding:4px;font-size:12px;display:inline-flex}.icon-btn{color:#839084;background:0 0;border-radius:6px;justify-content:center;align-items:center;padding:7px;display:inline-flex}.pill{background:var(--soft);color:#6c806e;white-space:nowrap;border-radius:5px;align-items:center;gap:8px;padding:4px 10px;font-size:11px;display:inline-flex}.brand{align-items:center;gap:12px;display:flex}.brand-mark{background:var(--green);color:#fff;width:40px;height:40px;font-family:var(--serif);border-radius:11px;justify-content:center;align-items:center;font-size:23px;display:flex}.brand>span{letter-spacing:3px;font-size:22px;font-family:var(--serif);font-weight:600}.brand small{letter-spacing:2px;color:#8c998d;font-family:sans-serif;font-size:8px;display:block}.app-shell{min-height:100vh;display:flex}.sidebar{border-right:1px solid var(--line);z-index:20;background:#fbfcf9;flex-direction:column;width:236px;padding:34px 22px 20px;display:flex;position:fixed;inset:0 auto 0 0}.sidebar .brand{padding-left:12px}.sidebar-label{color:#9aa497;letter-spacing:2px;margin:47px 14px 16px;font-size:10px}.nav-item{text-align:left;color:#7c877d;background:0 0;border-radius:8px;align-items:center;gap:13px;width:100%;margin:5px 0;padding:13px 14px;font-size:13px;display:flex}.nav-item.selected{color:#315b48;background:#e9eee6;font-weight:600}.nav-count{text-align:center;background:#d6e2d2;border-radius:5px;min-width:20px;margin-left:auto;font-size:10px}.sidebar-bottom{margin-top:auto}.daily-note{color:#899986;border-bottom:1px solid var(--line);margin-bottom:20px;padding:25px 15px 22px}.daily-note p{font-family:var(--serif);margin:10px 0 0;font-size:13px;line-height:2}.profile{align-items:center;gap:10px;display:flex}.avatar{text-align:center;background:#e7ecdf;border-radius:50%;width:34px;height:34px;font-size:12px;line-height:34px}.profile strong{font-size:11px;font-weight:500;display:block}.profile small{color:#9ba595;font-size:9px;display:block}.profile .icon-btn{margin-left:auto}.workspace{flex-direction:column;width:calc(100% - 236px);min-height:100vh;margin-left:236px;display:flex}.topbar{border-bottom:1px solid var(--line);background:#fbfcf9;justify-content:space-between;align-items:center;height:70px;padding:0 44px;display:flex}.breadcrumb{color:#9ba496;align-items:center;gap:12px;font-size:11px;display:flex}.breadcrumb span{color:#596b5c}.top-date{color:#8b968b;font-size:11px}.main-content{flex:1;width:100%;max-width:1450px;margin:0 auto;padding:40px 44px}.page-heading{justify-content:space-between;align-items:center;gap:20px;margin-bottom:29px;display:flex}.page-heading p{color:var(--muted);margin-bottom:0;font-size:13px}.page-heading .eyebrow{margin-bottom:10px}.dashboard-grid{grid-template-columns:minmax(0,2.8fr) minmax(230px,1fr);gap:20px;display:grid}.review-hero{color:#f0f5e9;background:#315441;border-radius:13px;padding:23px 30px 0;position:relative;overflow:hidden}.hero-top{justify-content:space-between;align-items:center;display:flex}.pill.light{color:#d8e6cb;background:#ffffff12;border:1px solid #ffffff20;font-size:10px}.status-dot{background:#bfd293;border-radius:50%;width:5px;height:5px}.hero-mini{color:#bacfb9;font-size:9px}.hero-body{justify-content:space-between;align-items:center;gap:10px;padding:17px 0 22px;display:flex}.hero-number{font-family:Georgia,serif;font-size:52px;line-height:1.2}.hero-number span{color:#bfceb7;margin-left:12px;font-family:sans-serif;font-size:12px}.hero-body h2{font-family:var(--serif);letter-spacing:1px;margin:13px 0 6px;font-size:22px}.hero-body p{color:#b8cbb5;max-width:340px;font-size:11px}.hero-button{color:#36543a;background:#e2edcf;padding:10px 20px;font-size:12px}.hero-symbol{background:#bdd1b009;border:1px solid #bdd1b02b;border-radius:10px;flex-direction:column;justify-content:center;align-items:center;width:142px;min-width:142px;height:155px;display:flex;transform:rotate(-7deg);box-shadow:8px 8px #bdd1b008}.hero-symbol span{font-family:var(--serif);color:#abc49988;font-size:76px;line-height:1.4}.hero-symbol small{letter-spacing:1.5px;color:#b4c4a9;font-size:6px}.hero-footer{color:#bdceb5;border-top:1px solid #ffffff15;align-items:center;gap:7px;padding:12px 0;font-size:10px;display:flex}.hero-footer>span{color:#8ead86;margin-left:auto}.stat-stack{flex-direction:column;gap:18px;display:flex}.stat-card{border:1px solid var(--line);background:#fff;border-radius:12px;flex-wrap:wrap;flex:1;align-items:center;gap:15px;padding:25px;display:flex}.stat-icon{color:#6b8568;background:#edf2e8;border-radius:11px;place-items:center;width:43px;height:43px;display:grid}.stat-icon.amber{color:#b39753;background:#f7f0df}.stat-card small{color:#899584;font-size:11px}.stat-card strong{font-family:Georgia,serif;font-size:32px;font-weight:400;line-height:1.4;display:block}.stat-card strong span{color:#97a18f;font-family:sans-serif;font-size:12px}.stat-desc{color:#a0aa99;flex-basis:100%;font-size:10px}.section-heading{justify-content:space-between;align-items:center;gap:15px;margin:30px 0 17px;display:flex}.section-heading h2{align-items:center;gap:9px;margin:0 0 5px;font-size:17px;display:flex}.section-heading p{color:#94a08d;margin:0;font-size:11px}.chapter-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;display:grid}.chapter-card{border:1px solid var(--line);text-align:left;color:var(--ink);background:#fff;border-radius:11px;padding:23px}.chapter-card-top{justify-content:space-between;align-items:center;margin-bottom:20px;display:flex}.chapter-icon{color:#7a8c5d;background:#eef1e6;border-radius:9px;place-items:center;width:43px;height:43px;display:grid}.tone-1{color:#658b7f;background:#eaf0ed}.chapter-card>small{color:#9aa393;font-size:10px}.chapter-card h3{font-family:var(--serif);margin:4px 0 24px;font-size:19px}.progress-track{background:#edf0e8;border-radius:4px;height:4px;overflow:hidden}.progress-track span{background:#a4b990;border-radius:4px;height:100%;display:block}.chapter-card-bottom{color:#8d9c83;justify-content:space-between;align-items:center;margin-top:12px;font-size:10px;display:flex}.add-chapter{color:#91a087;background:#f8faf5;border-style:dashed;flex-direction:column;justify-content:center;align-items:center;display:flex}.dashed-plus{background:#eef2e6;border-radius:50%;place-items:center;width:44px;height:44px;margin-bottom:15px;display:grid}.add-chapter h3{margin:0 0 7px;font-family:inherit;font-size:13px}.add-chapter p{margin:0;font-size:10px}.bottom-grid{grid-template-columns:1.3fr 1fr;gap:18px;margin-top:25px;display:grid}.panel{border:1px solid var(--line);background:#fff;border-radius:11px;padding:25px}.section-heading.compact{margin:0 0 20px}.compact h2{margin:0;font-size:14px}.soft-empty{color:#b0bba5;justify-content:center;align-items:center;gap:20px;padding:24px 10px;display:flex}.soft-empty p{margin:0;font-size:11px;line-height:1.9}.error-stat{align-items:center;gap:15px;margin:12px 0;font-size:12px;display:flex}.error-stat .progress-track{flex:1}.error-stat strong{color:#8b9985;font-size:11px;font-weight:400}.approach{background:#f0f3e9}.approach .eyebrow{margin-bottom:9px;font-size:9px}.approach h2{font-family:var(--serif);margin-bottom:10px;font-size:19px}.approach p{color:#879579;margin:8px 0 0;font-size:10px}.approach .math-text{font-size:15px}.footer{color:#a4ad9e;border-top:1px solid var(--line);justify-content:space-between;margin:0 44px;padding:18px 0;font-size:9px;display:flex}.footer span{letter-spacing:1px}.math-text{white-space:pre-wrap;overflow-wrap:anywhere;line-height:1.85}.math-block{max-width:100%;display:block;overflow-x:auto}.katex-display{margin:.65em 0}.math-error{color:#b04c43;background:#fff0ed;border-radius:3px}.knowledge-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;display:grid}.library-toolbar{align-items:center;gap:15px;margin-bottom:22px;display:flex}.search-field{border:1px solid var(--line);color:#94a08a;background:#fff;border-radius:8px;flex:1;align-items:center;gap:10px;padding:0 12px;display:flex}.search-field input{background:0 0;border:0;margin:0;font-weight:400}.library-toolbar select{width:auto;max-width:270px;margin:0;font-size:12px}.library-toolbar>span{white-space:nowrap}.knowledge-card{border:1px solid var(--line);background:#fff;border-radius:11px;flex-direction:column;min-width:0;padding:24px;display:flex}.knowledge-top{justify-content:space-between;align-items:center;display:flex}.knowledge-card h3{font-family:var(--serif);margin:15px 0 8px;font-size:20px}.knowledge-formula{background:#f7f9f4;border-radius:8px;justify-content:center;align-items:center;min-height:75px;margin:8px 0 18px;padding:12px;font-size:17px;display:flex}.knowledge-detail>small,.explanation>small{color:#91a185;margin-bottom:6px;font-size:10px;display:block}.knowledge-detail{margin-bottom:15px;font-size:12px}.pitfall{color:#8b7950;background:#faf6ea;border-radius:6px;align-items:flex-start;gap:9px;padding:10px 12px;font-size:11px;display:flex}.pitfall>span{white-space:nowrap;background:#f0e7ca;border-radius:3px;margin-top:3px;padding:1px 5px;font-size:9px}.knowledge-footer{border-top:1px solid var(--line);color:#96a08c;justify-content:space-between;align-items:center;margin-top:auto;padding-top:13px;font-size:10px;display:flex}.knowledge-card .pitfall{margin-bottom:18px}.import-steps{color:#a5ae9d;align-items:center;gap:20px;margin-bottom:24px;font-size:12px;display:flex}.import-steps .active{color:var(--green);font-weight:600}.import-steps .done{color:#749661}.import-grid{grid-template-columns:minmax(0,2fr) minmax(240px,1fr);gap:20px;display:grid}.import-main{padding:20px}.upload-zone{color:#829976;background:#f7faf3;border:1px dashed #c5d1bf;border-radius:9px;flex-direction:column;justify-content:center;align-items:center;min-height:420px;display:flex;position:relative}.upload-zone h3{color:var(--ink);margin:20px 0 6px;font-size:17px}.upload-zone p{margin-bottom:8px;font-size:12px;font-weight:400}.upload-zone small{color:#a2af97;font-size:10px;font-weight:400}.upload-zone input{opacity:0;cursor:pointer;width:100%;height:100%;position:absolute;inset:0}.image-toolbar{justify-content:space-between;align-items:center;gap:10px;margin-bottom:15px;font-size:11px;display:flex}.image-toolbar>span{overflow-wrap:anywhere;align-items:center;gap:8px;min-width:0;display:flex}.crop-image{touch-action:none;cursor:crosshair;-webkit-user-select:none;user-select:none;line-height:0;position:relative;overflow:hidden}.crop-image img{pointer-events:none;width:100%;height:auto;display:block}.crop-selection,.source-highlight{pointer-events:none;background:#62b98020;border:2px solid #4b8b67;position:absolute;box-shadow:0 0 0 9999px #1a2c1615}.crop-actions{justify-content:space-between;align-items:center;gap:12px;margin-top:18px;display:flex}.import-aside{flex-direction:column;gap:18px;display:flex}.import-aside h3{font-family:var(--serif);font-size:19px}.import-aside p,.import-aside li{color:#86957c;font-size:12px}.import-aside ol{padding-left:18px;line-height:2.3}.info-note{color:#89987d;background:#f3f5ee;border-radius:7px;margin-top:20px;padding:13px;font-size:11px;line-height:1.9}.source-list h3{font-family:inherit;font-size:13px}.source-list button{text-align:left;color:#7e9074;border-bottom:1px solid var(--line);background:0 0;align-items:center;gap:8px;width:100%;padding:10px 0;font-size:11px;display:flex}.source-list button span{text-overflow:ellipsis;white-space:nowrap;flex:1;min-width:0;overflow:hidden}.review-area{max-width:780px;margin:0 auto}.review-card{border:1px solid var(--line);background:#fff;border-radius:13px;padding:30px 40px}.review-card-top{justify-content:space-between;align-items:center;margin-bottom:22px;display:flex}.review-card-top>span:last-child{color:#93a086;font-size:11px}.review-question{margin:20px 0 25px;font-size:20px;line-height:2}.review-question strong{font-family:var(--serif);font-size:25px}.draft-box{background:#fafbf8;min-height:90px;font-size:13px}.reveal-button{min-width:180px;margin:24px auto 0;display:flex}.answer-section{border-top:1px solid var(--line);margin-top:25px;padding-top:22px}.answer-label{color:#749466;align-items:center;gap:6px;font-size:11px;display:flex}.answer-math{margin:15px 0 20px;font-size:21px}.explanation{background:#f6f8f2;border-radius:8px;margin-bottom:15px;padding:15px;font-size:13px}.answer-section .text-button{margin-top:15px}.error-choice{margin:25px 0 20px}.error-choice>small{color:#95a08b;margin-bottom:10px;font-size:11px;display:block}.error-choice>div{flex-wrap:wrap;gap:8px;display:flex}.chip{border:1px solid var(--line);color:#8a987e;background:#fff;border-radius:20px;padding:5px 12px;font-size:11px}.chip.selected{color:#697d46;background:#f2f5e8;border-color:#b1bd99}.rating-row{grid-template-columns:repeat(4,1fr);gap:10px;display:grid}.rating{color:#607450;background:#f0f3ed;border:1px solid #e4e9de;border-radius:8px;padding:13px 6px}.rating strong{font-size:14px;display:block}.rating small{color:#93a083;margin-top:3px;font-size:9px;display:block}.rating-1{color:#af7f64;background:#fcf0e9;border-color:#f0ded3}.rating-2{color:#aa9458;background:#fbf6e6;border-color:#eee7cc}.rating-4{color:#4b713c;background:#e6efdf;border-color:#d4e2cb}.review-note{text-align:center;color:#98a68b;margin:18px 0;font-size:10px}.completion{text-align:center;max-width:720px;margin:40px auto;padding:60px 25px}.completion-icon{color:#83a064;background:#eaf1df;border-radius:50%;place-items:center;width:75px;height:75px;margin:0 auto 25px;display:grid}.completion h2{font-family:var(--serif);font-size:28px}.completion p{color:#8b9a7c;font-size:13px;line-height:2}.completion-actions{justify-content:center;gap:12px;margin-top:25px;display:flex}.settings-grid{grid-template-columns:1fr 1fr;gap:20px;display:grid}.settings-grid .panel>p{font-size:12px}.settings-grid label{max-width:240px;margin:25px 0 10px}.settings-grid .primary{margin-top:15px}.inline-button{font-size:12px}.settings-facts{flex-direction:column;gap:13px;margin-top:25px;display:flex}.settings-facts>span{color:#92a086;border-top:1px solid var(--line);justify-content:space-between;padding-top:13px;font-size:11px;display:flex}.settings-facts strong{color:#667d58;font-weight:400}.modal-backdrop{-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);z-index:50;background:#172a2270;justify-content:center;align-items:center;padding:24px;display:flex;position:fixed;inset:0}.editor-modal{background:#fcfdf9;border-radius:15px;width:100%;max-width:1060px;max-height:calc(100dvh - 48px);overflow:auto;box-shadow:0 20px 70px #142a2533}.modal-header{border-bottom:1px solid var(--line);justify-content:space-between;align-items:center;gap:15px;padding:25px 30px;display:flex}.modal-header .eyebrow{margin-bottom:5px}.modal-header h2{font-family:var(--serif);margin:0;font-size:23px}.modal-header p{margin:6px 0 0}.editor-body{grid-template-columns:1.5fr 1fr;gap:28px;padding:25px 30px;display:grid}.editor-fields label{font-size:12px}.form-row{grid-template-columns:1fr 1fr;gap:15px;margin-bottom:16px;display:grid}.form-row label+label{margin-top:0}.editor-preview{background:#f0f4e9;border-radius:9px;align-self:start;padding:23px;position:sticky;top:15px;overflow:hidden}.editor-preview h3{font-family:var(--serif);font-size:21px}.editor-preview>small{color:#95a084;margin:20px 0 8px;font-size:10px;display:block}.editor-preview .math-text{font-size:13px}.editor-preview>.math-text:first-of-type{font-size:18px}.editor-preview .info-note{background:0 0;margin-top:27px;padding:0}.application-editor{background:#f2f5ee;border-radius:8px;margin:20px 0;padding:14px}.application-editor summary{cursor:pointer;color:#718662;font-size:12px}.application-editor label{margin-top:12px}.modal-footer{border-top:1px solid var(--line);background:#fcfdf9;justify-content:space-between;align-items:center;gap:15px;padding:18px 30px;display:flex;position:sticky;bottom:0}.modal-footer>div{gap:10px;display:flex}.danger-button{color:#b07b68;background:0 0;align-items:center;gap:6px;padding:8px;font-size:11px;display:flex}.source-modal{background:#fff;border-radius:12px;width:100%;max-width:800px;max-height:90dvh;overflow:auto}.source-modal>.source-preview{margin:20px}.source-preview{margin-top:20px;line-height:0;position:relative;overflow:hidden}.source-preview img{width:100%;display:block}.source-highlight{background:#e9b36b20;border-color:#d99640}.error-banner{color:#a76e56;background:#fff0e9;border:1px solid #f2ddce;border-radius:8px;justify-content:space-between;align-items:center;gap:10px;margin-bottom:20px;padding:12px 15px;font-size:12px;display:flex}.editor-modal>.error-banner{margin:15px 30px 0}.toast{color:#fff;z-index:70;background:#2f503d;border-radius:9px;align-items:center;gap:10px;max-width:90vw;padding:13px 22px;font-size:12px;display:flex;position:fixed;bottom:30px;left:50%;transform:translate(-50%);box-shadow:0 7px 30px #19341d33}.empty{text-align:center;color:#94a386;padding:65px}.empty svg{margin-bottom:15px}.empty h3{color:#6b825e}.empty p{font-size:12px}.empty button{color:#5b784d;background:#eaf0e2;border-radius:6px;padding:9px 15px}.loading-screen{color:#93a087;flex-direction:column;justify-content:center;align-items:center;gap:20px;min-height:100vh;display:flex}.login-screen{grid-template-columns:1.15fr 1fr;min-height:100vh;display:grid}.login-art{background:#eaf0e3;flex-direction:column;padding:50px 70px;display:flex;position:relative;overflow:hidden}.login-copy{margin:auto 0}.login-copy .eyebrow{color:#83956e}.login-copy h1{letter-spacing:2px;color:#35533a;margin:0 0 25px;font-size:46px;line-height:1.6}.login-copy p{color:#809471;font-size:14px;line-height:2}.decor-formula{text-align:left;color:#7b9363;border-top:1px solid #d4dec7;max-width:350px;margin-top:40px;padding-top:30px;font-size:27px}.decor-formula .katex-display{text-align:left}.decor-formula small{letter-spacing:4px;margin-top:20px;font-family:sans-serif;font-size:10px;display:block}.login-foot{color:#97a689;letter-spacing:2px;margin-top:45px;font-size:10px}.login-panel{background:#fcfdf9;justify-content:center;align-items:center;padding:50px;display:flex}.login-panel>div{width:100%;max-width:370px}.login-panel h2{font-family:var(--serif);margin-bottom:10px;font-size:28px}.login-panel>.muted{font-size:12px}.login-panel form{margin-top:30px}.login-note{text-align:center;color:#a2ad96;margin-top:25px;font-size:10px}.spin{animation:1s linear infinite spin}@keyframes spin{to{transform:rotate(360deg)}}.mobile-menu{display:none}@media (min-width:1550px){.main-content{padding-top:50px}.review-hero{padding:30px 35px 0}.hero-body{padding:22px 0 28px}.hero-body h2{font-size:26px}.hero-number{font-size:64px}.hero-symbol{width:170px;height:175px}.hero-symbol span{font-size:90px}.stat-card{padding:30px}}@media (max-width:1150px){.sidebar{width:210px;padding-left:16px;padding-right:16px}.workspace{width:calc(100% - 210px);margin-left:210px}.main-content{padding:30px 25px}.topbar{padding:0 25px}.footer{margin:0 25px}.hero-symbol{display:none}.dashboard-grid{grid-template-columns:1.8fr 1fr}.review-hero{padding:20px 23px 0}.stat-card{padding:20px}.chapter-card{padding:18px}.chapter-grid{gap:12px}.chapter-card-top .pill{font-size:9px}.import-grid{grid-template-columns:1.7fr 1fr}.library-toolbar>span{display:none}.knowledge-card{padding:20px}.knowledge-formula{font-size:15px}.bottom-grid{grid-template-columns:1fr 1fr}}@media (max-width:800px){.sidebar{width:230px;display:none;top:64px;box-shadow:10px 0 35px #1d382324}.sidebar.mobile-open{display:flex}.workspace{width:100%;margin:0}.mobile-menu{display:inline-flex}.topbar{z-index:25;height:64px;padding:0 18px;position:sticky;top:0}.breadcrumb{margin-left:8px;margin-right:auto}.top-date{font-size:10px}.main-content{padding:26px 20px}.page-heading h1{font-size:29px}.page-heading .eyebrow{font-size:8px}.page-heading p{font-size:11px}.page-heading .secondary,.page-heading .primary{padding:9px 12px;font-size:11px}.dashboard-grid{grid-template-columns:1fr}.stat-stack{flex-direction:row;gap:12px}.stat-card{gap:10px;padding:16px}.stat-icon{width:35px;height:35px}.stat-card strong{font-size:25px}.stat-card small{font-size:10px}.stat-desc{font-size:9px}.hero-symbol{width:135px;min-width:135px;height:150px;display:flex}.hero-body h2{font-size:23px}.hero-body p{font-size:11px}.hero-footer{font-size:9px}.chapter-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.add-chapter{min-height:150px}.bottom-grid{grid-template-columns:1fr}.knowledge-grid{grid-template-columns:1fr 1fr}.import-grid,.settings-grid{grid-template-columns:1fr}.import-aside{grid-template-columns:1fr 1fr;display:grid}.upload-zone{min-height:300px}.review-card{padding:25px}.editor-body{grid-template-columns:1fr;padding:20px}.editor-preview{position:static}.modal-header{padding:20px}.modal-footer{padding:15px 20px}.modal-footer>.muted{display:none}.modal-footer>div{margin-left:auto}.modal-backdrop{padding:12px}.editor-modal{max-height:calc(100dvh - 24px)}.login-art{padding:35px}.login-copy h1{font-size:33px}.login-panel{padding:35px}.decor-formula{font-size:20px}.login-copy p{font-size:12px}}@media (max-width:520px){.page-heading{align-items:flex-start;gap:10px}.page-heading h1{font-size:27px}.page-heading>.secondary,.page-heading>.primary{margin-top:28px;padding:10px;font-size:0}.page-heading>.secondary svg,.page-heading>.primary svg{width:18px}.hero-symbol{display:none}.review-hero{padding:19px 23px 0}.hero-number{font-size:56px}.hero-mini,.hero-footer>span{font-size:8px}.chapter-grid{grid-template-columns:1fr}.chapter-card{padding:22px}.chapter-card h3{margin-bottom:20px}.chapter-card-top{margin-bottom:15px}.chapter-card.add-chapter{min-height:150px}.knowledge-grid{grid-template-columns:1fr}.library-toolbar{flex-wrap:wrap;gap:10px}.search-field{flex-basis:100%}.library-toolbar select{width:100%;max-width:none}.section-heading .small{font-size:9px}.import-aside{grid-template-columns:1fr}.import-steps{gap:7px;font-size:10px}.crop-actions{flex-direction:column;align-items:flex-start}.crop-actions .primary{width:100%}.review-card{padding:22px 18px}.review-question{font-size:17px}.review-question strong{font-size:22px}.answer-math{font-size:18px}.rating-row{gap:6px}.rating{padding:12px 3px}.rating strong{font-size:13px}.rating small{font-size:8px}.form-row{grid-template-columns:1fr}.form-row label+label{margin-top:0}.editor-body{padding:18px}.modal-footer{flex-wrap:wrap}.danger-button{font-size:10px}.modal-footer .primary,.modal-footer .secondary{padding:9px 12px;font-size:11px}.source-modal>.source-preview{margin:12px}.login-screen{grid-template-columns:1fr}.login-art{padding:28px 30px}.login-copy{margin-top:28px}.login-copy h1{margin-bottom:15px;font-size:30px}.login-copy p{margin:0;font-size:11px}.login-copy .eyebrow{font-size:8px}.decor-formula,.login-foot{display:none}.login-panel{padding:35px 30px}.login-panel h2{font-size:24px}.login-panel .muted{font-size:11px}.login-panel .eyebrow{font-size:8px}.login-panel form{margin-top:20px}.footer{margin:0 20px;font-size:8px}.footer span{display:none}.completion{padding:35px 18px}.completion h2{font-size:23px}.completion p{font-size:11px}.completion-actions{flex-direction:column}.stat-desc{display:none}.stat-card{align-items:center}.stat-card strong span{font-size:10px}.top-date{max-width:120px}.settings-facts strong{font-size:10px}}
