@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}
*{box-sizing:border-box}html,body{margin:0;padding:0}body{color:#1b2330;background:#f4f6fb;font-family:system-ui,Segoe UI,Malgun Gothic,sans-serif}a{color:inherit}.mascot{pointer-events:none;justify-content:center;margin:-2px 0 14px;animation:3.5s ease-in-out infinite mascot-idle;display:flex;position:relative}@keyframes mascot-idle{0%,to{transform:translateY(0)}50%{transform:translateY(-4px)}}.mascot .m-shadow{animation:3.5s ease-in-out infinite mascot-shadow}@keyframes mascot-shadow{0%,to{transform:scaleX(1)}50%{transform:scaleX(.9)}}.mascot .m-arm-right{transform-box:fill-box;transform-origin:12% 8%;transition:transform .3s cubic-bezier(.2,1.5,.4,1)}.mascot.celebrate .m-arm-right{transform:rotate(-125deg)}.mascot .m-body{transform-box:fill-box;transform-origin:50% 100%}.mascot.celebrate .m-body{animation:.42s 2 mascot-jump}@keyframes mascot-jump{0%,to{transform:translateY(0)scaleY(1)}30%{transform:translateY(-14px)scaleY(1.04)}60%{transform:translateY(0)scaleY(.96)}}.mascot.celebrate .m-mouth{d:path("M40,60 q10,9 20,0")}.mascot-img{width:92px;height:92px;image-rendering:pixelated;transform-origin:50% 100%;display:block}.mascot.celebrate .mascot-img{animation:.5s 2 mascot-hop}@keyframes mascot-hop{0%,to{transform:translateY(0)rotate(0)scale(1)}25%{transform:translateY(-15px)rotate(-9deg)scale(1.05)}50%{transform:translateY(0)rotate(0)scale(.97)}75%{transform:translateY(-9px)rotate(9deg)scale(1.03)}}.mascot-spark{font-size:22px;animation:.9s forwards mascot-spark;position:absolute;top:-2px;left:56%}@keyframes mascot-spark{0%{opacity:0;transform:scale(.4)translateY(8px)}30%{opacity:1}to{opacity:0;transform:scale(1.3)translateY(-14px)}}@keyframes sprite-play{0%{background-position-x:0}to{background-position-x:calc(-1 * var(--sheetW))}}@media (prefers-reduced-motion:reduce){.mascot{animation:none}.mascot .m-body,.mascot .m-arm-right,.mascot-spark{transition:none;animation:none}}.why-intro{color:#46506a;background:#f2f5fc;border-radius:12px;margin-bottom:18px;padding:14px 16px;font-size:14px;line-height:1.7}.why-grid{grid-template-columns:repeat(auto-fit,minmax(230px,1fr));align-items:start;gap:16px;display:grid}.why-col{background:#fff;border-radius:14px;padding:12px;box-shadow:0 1px 6px #141e3c0d}.why-col-head{border-bottom:2px solid #eef1f7;margin-bottom:10px;padding:6px 6px 10px}.why-col-title{font-size:16px;font-weight:800}.why-col-desc{color:#7a86a0;margin-top:3px;font-size:12px}.dom-su .why-col-title{color:#2f4ad0}.dom-do .why-col-title{color:#1b7a43}.dom-gwan .why-col-title{color:#c2790a}.dom-ja .why-col-title{color:#7a3fb0}.why-flow{flex-direction:column;display:flex}.why-arrow{text-align:center;color:#c0c8d8;margin:2px 0;font-size:14px;line-height:1}.why-card{background:#fbfcfe;border:1px solid #eef1f7;border-radius:11px;padding:10px 12px}.why-card-top{justify-content:space-between;align-items:center;display:flex}.why-grade{color:#8a93a8;background:#eef1f7;border-radius:999px;padding:2px 7px;font-size:11px;font-weight:700}.why-learn{color:#2f4ad0;font-size:12px;text-decoration:none}.why-learn:hover{text-decoration:underline}.why-name{margin:5px 0 2px;font-size:14px;font-weight:700}.why-why{color:#5a6478;font-size:12px;line-height:1.5}.why-line{color:#46506a;margin-top:5px;font-size:12px;line-height:1.45}.why-line.fut{color:#7a3fb0}.kx{display:inline-block}.kx .katex{font-size:1.05em}.why-formula .kx .katex{font-size:1.15em}.stem .kx .katex{font-size:1em}.why-box{background:#fff7e8;border:1px solid #ffe0a3;border-radius:12px;margin:10px 0 6px;padding:12px 14px}.why-box-head{color:#b5670a;margin-bottom:8px;font-size:14px;font-weight:800}.why-item{border-top:1px dashed #f0d9ab;padding:10px 0}.why-item:first-of-type{border-top:0;padding-top:2px}.why-formula{color:#1b2330;background:#fff;border:1px solid #f0e3c8;border-radius:8px;padding:8px 12px;font-size:15px;font-weight:700;display:inline-block}.why-think{color:#7a5a1a;margin:8px 0 6px;font-size:13px;line-height:1.5}.why-reveal{color:#b5670a;cursor:pointer;background:#ffefcf;border:0;border-radius:8px;padding:7px 14px;font-size:13px;font-weight:700}.why-reveal:hover{background:#ffe6b0}.why-answer{color:#333c4e;background:#fff;border-radius:8px;padding:10px 12px;font-size:14px;line-height:1.65}.detail-box{margin:10px 0 6px}.detail-toggle{text-align:left;color:#2f4ad0;cursor:pointer;background:#eef2fb;border:0;border-radius:10px;width:100%;padding:10px 14px;font-size:14px;font-weight:700}.detail-toggle:hover{background:#e3e9f8}.detail-step{background:#fbfcfe;border:1px solid #eef1f7;border-radius:12px;margin-top:10px;padding:12px 14px}.detail-title{color:#1b2330;margin-bottom:8px;font-size:14px;font-weight:700}.detail-svg{justify-content:center;margin:6px 0 10px;display:flex}.detail-svg svg{max-width:100%;height:auto}.detail-body{color:#333c4e;font-size:14px;line-height:1.6}.mascot-wrap{position:relative}.xp-toast{color:#fff;white-space:nowrap;pointer-events:none;background:#2f4ad0;border-radius:999px;padding:3px 10px;font-size:12px;font-weight:700;animation:1.5s forwards xp-float;position:absolute;top:2px;left:50%;transform:translate(-50%)}@keyframes xp-float{0%{opacity:0;transform:translate(-50%,6px)}20%{opacity:1}to{opacity:0;transform:translate(-50%,-20px)}}.award-modal{text-align:center}.award-burst{font-size:36px;animation:.5s 2 mascot-hop}.award-img{image-rendering:pixelated;filter:drop-shadow(0 6px 10px #141e3c33);margin:6px auto;animation:.6s 2 mascot-hop;display:block}.award-name{margin:2px 0 8px;font-size:18px;font-weight:700}.streak-badge{color:#fff;background:#ff7a1a;border-radius:999px;padding:3px 9px;font-size:12px;font-weight:800;position:absolute;top:4px;right:8px;box-shadow:0 2px 6px #ff7a1a66}.mas-status{margin:-2px 4px 14px}.mas-status-top{justify-content:space-between;align-items:baseline;gap:6px;display:flex}.mas-status-name{color:#1b2330;font-size:14px;font-weight:700}.mas-status-lv{color:#5a6478;white-space:nowrap;font-size:12px}.mas-xp-txt{color:#9aa3b6;text-align:right;margin-top:2px;font-size:11px}.col-top{flex-wrap:wrap;align-items:baseline;gap:12px;margin-bottom:6px;display:flex}.col-sum{color:#5a6478;font-size:13px}.mas-grid{grid-template-columns:repeat(auto-fill,minmax(120px,1fr));gap:12px;display:grid}.mas-card{text-align:center;background:#fff;border:2px solid #eef1f7;border-radius:14px;padding:12px 10px;box-shadow:0 1px 4px #141e3c0d}.mas-card.active{border-color:#2f4ad0;box-shadow:0 0 0 3px #2f4ad026}.mas-card.rar-rare{border-color:#b8d0ff}.mas-card.rar-epic{border-color:#dcc2ff}.mas-card.rar-legendary{background:linear-gradient(#fffdf5,#fff);border-color:#ffe09a}.mas-thumb{justify-content:center;align-items:center;height:74px;display:flex}.mas-thumb img{image-rendering:pixelated}.mas-card.locked .mas-thumb img{filter:brightness(0)opacity(.18)}.mas-name{margin-top:4px;font-size:13px;font-weight:700}.mas-name.locked{color:#b3bacb}.mas-lv{color:#5a6478;margin-top:2px;font-size:12px}.mas-stars{color:#f5a623;letter-spacing:-1px}.mas-xpbar{background:#eef1f7;border-radius:4px;height:5px;margin:6px 4px 0;overflow:hidden}.mas-xpbar>div{background:#22a35a;height:100%}.mas-hint{color:#9aa3b6;margin-top:3px;font-size:11px;line-height:1.35}.mas-rar{margin-top:4px;font-size:11px;font-weight:700}.mas-rar.rar-common{color:#8a93a8}.mas-rar.rar-rare{color:#3a72d0}.mas-rar.rar-epic{color:#8b4fd8}.mas-rar.rar-legendary{color:#d69a17}.mas-eq{cursor:pointer;color:#2f4ad0;background:#fff;border:1px solid #cdd5e6;border-radius:8px;margin-top:8px;padding:5px 12px;font-family:inherit;font-size:12px}.mas-eq.on{color:#fff;cursor:default;background:#2f4ad0;border-color:#2f4ad0}.dash-collect{color:#6a5acd;font-size:12px;font-weight:600}.topnav{color:#fff;background:#2f4ad0;align-items:center;gap:18px;padding:12px 20px;display:flex}.topnav .brand{color:#fff;white-space:nowrap;font-size:16px;font-weight:700;text-decoration:none}.topnav .nav-links{gap:6px;display:flex}.topnav .nav-link{color:#fff;opacity:.85;border-radius:8px;padding:5px 10px;font-size:14px;text-decoration:none}.topnav .nav-link:hover{opacity:1;background:#ffffff1f}.topnav .nav-link.on{opacity:1;background:#ffffff2e;font-weight:600}.topnav .nav-right{align-items:center;gap:10px;margin-left:auto;display:flex}.topnav .nav-parent{color:#fff;white-space:nowrap;border:1px solid #ffffff80;border-radius:8px;padding:6px 12px;font-size:13px;text-decoration:none}.topnav .nav-parent:hover,.topnav .nav-parent.on{background:#ffffff29}.page-title{margin:4px 0 14px;font-size:20px}.learner-line{color:#5a6478;margin:4px 0 12px;font-size:13px}.dash-topline{align-items:baseline;gap:12px;margin-bottom:12px;display:flex}.dash-who{color:#7a86a0;font-size:13px}.appheader{color:#fff;background:#2f4ad0;justify-content:space-between;align-items:center;padding:14px 20px;display:flex}.appheader h1{margin:0;font-size:17px;font-weight:700}.appheader .stat{opacity:.92;font-size:13px}.headright{align-items:center;gap:10px;display:flex}.child-sel{color:#1b2330;cursor:pointer;background:#fff;border:0;border-radius:8px;padding:5px 8px;font-size:13px}.hbtn{color:#fff;cursor:pointer;background:0 0;border:1px solid #ffffff80;border-radius:8px;padding:5px 10px;font-size:12px}.hbtn:hover{background:#ffffff26}.appheader a{color:#fff;opacity:.92;font-size:13px;text-decoration:none}.appheader a:hover{text-decoration:underline}.card{background:#fff;border-radius:14px;padding:22px;box-shadow:0 2px 10px #141e3c0f}.btn{cursor:pointer;color:#fff;background:#2f4ad0;border:0;border-radius:10px;padding:11px 20px;font-family:inherit;font-size:15px;font-weight:600;text-decoration:none;display:inline-block}.btn:hover{background:#2740b8}.btn.ghost{color:#3550c8;background:#eef1fb}.btn.ghost.chal-on{color:#b26a12;background:#ffe3c2}.actions{flex-wrap:wrap;gap:10px;margin-top:18px;display:flex}.wrap{grid-template-columns:1fr 280px;gap:18px;max-width:920px;margin:22px auto;padding:0 16px;display:grid}@media (max-width:760px){.wrap{grid-template-columns:1fr}}.selbar{align-items:center;gap:18px;margin-bottom:14px;padding:14px 18px;display:flex}.selbar label{color:#5a6478;align-items:center;gap:7px;font-size:13px;display:flex}.selbar select{cursor:pointer;background:#fff;border:2px solid #cdd5e6;border-radius:9px;outline:none;padding:7px 10px;font-size:14px}.selbar select:focus{border-color:#3550c8}.selbar .concept-btn{margin-left:auto;padding:8px 14px;font-size:14px}.why{color:#7a86a0;margin-bottom:6px;font-size:12px}.prog{margin-bottom:14px}.prog-head{color:#7a86a0;justify-content:space-between;align-items:baseline;font-size:12px;display:flex}.prog-now{color:#3550c8;font-size:13px}.prog-now b{font-size:16px}.prog-bar{background:#e9edf6;border-radius:6px;height:6px;margin-top:6px;overflow:hidden}.prog-bar>div{background:#9fb0e0;border-radius:6px;height:100%;transition:width .4s}.badge{color:#3550c8;vertical-align:middle;background:#eef1fb;border-radius:20px;margin-left:6px;padding:2px 10px;font-size:11px;display:inline-block}.badge.kind{color:#b26a12;background:#fff1e0}.figure-svg{margin:2px 0 18px}.figure-svg svg{background:#fbfcff;border:1px solid #eef1f7;border-radius:10px;width:100%;max-width:340px;height:auto;padding:8px}.stem{letter-spacing:.3px;margin:8px 0 20px;font-size:26px;font-weight:700}.numinput{border:2px solid #cdd5e6;border-radius:10px;outline:none;width:160px;padding:10px 14px;font-size:20px}.numinput:focus{border-color:#3550c8}.choices{flex-direction:column;gap:10px;display:flex}.choice{text-align:left;cursor:pointer;background:#f7f9ff;border:2px solid #dfe5f4;border-radius:10px;padding:13px 16px;font-family:inherit;font-size:16px}.choice:hover{background:#eef2ff;border-color:#3550c8}.choice.sel{background:#eef2ff;border-color:#3550c8;box-shadow:0 0 0 3px #3550c826}.fb{border-radius:10px;margin-top:18px;padding:14px 16px;font-size:15px;line-height:1.5}.fb.correct{color:#0d7a3f;background:#e7f8ee}.fb.misconception{color:#a8590a;background:#fff3e0}.fb.retry{color:#b23b3b;background:#fdeaea}.side h3{color:#7a86a0;text-transform:uppercase;letter-spacing:.5px;margin:0 0 12px;font-size:13px}.mrow{margin-bottom:11px}.mrow .name{justify-content:space-between;font-size:13px;display:flex}.bar{background:#e9edf6;border-radius:6px;height:8px;margin-top:4px;overflow:hidden}.bar>div{background:#3550c8;border-radius:6px;height:100%;transition:width .4s}.mrow.done .bar>div{background:#22a35a}.mrow.done .name{color:#22a35a;font-weight:600}.hint{color:#9aa3b6;margin-top:14px;font-size:12px}.homewrap{max-width:760px;margin:44px auto;padding:0 16px}.home-hi{text-align:center;margin:0 0 24px;font-size:22px}.home-grid{grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:16px;display:grid}.home-card{color:#1b2330;background:#fff;border:2px solid #0000;border-radius:16px;padding:22px;text-decoration:none;transition:transform .12s,border-color .12s;display:block;box-shadow:0 2px 10px #141e3c0f}.home-card:hover{border-color:#3550c8;transform:translateY(-2px)}.home-primary{color:#fff;background:#2f4ad0}.home-ic{font-size:30px;line-height:1}.home-t{margin-top:10px;font-size:17px;font-weight:700}.home-d{color:#7a86a0;margin-top:4px;font-size:13px}.home-primary .home-d{color:#dbe2fb}.authwrap{max-width:420px;margin:40px auto;padding:0 16px}.authcard{padding:26px}.authin{border:2px solid #cdd5e6;border-radius:10px;outline:none;width:100%;margin-bottom:10px;padding:11px 13px;font-size:15px}.authin:focus{border-color:#3550c8}.autherr{color:#b23b3b;margin-bottom:10px;font-size:13px}.authtoggle{color:#5a6478;margin-top:14px;font-size:13px}.authtoggle button{color:#3550c8;cursor:pointer;background:0 0;border:0;padding:0;font-weight:600}.dash-child{margin-bottom:16px}.dash-head{flex-wrap:wrap;justify-content:space-between;align-items:baseline;gap:6px;margin-bottom:12px;display:flex}.dash-name{font-size:17px;font-weight:700}.dash-sum{color:#5a6478;font-size:13px}.dash-empty{color:#9aa3b6;font-size:13px}.dash-units{flex-direction:column;gap:8px;display:flex}.dash-unit{align-items:center;gap:10px;display:flex}.dash-uname{color:#2f4ad0;text-align:left;cursor:pointer;background:0 0;border:0;flex:0 0 190px;padding:0;font-family:inherit;font-size:14px;text-decoration:none}.dash-uname:hover{text-decoration:underline}.dash-actions{flex-wrap:wrap;gap:8px;margin-top:14px;display:flex}.dash-actions .learn{padding:8px 16px;font-size:13px}.dash-del{color:#b4443a;cursor:pointer;background:#fff;border:1px solid #e2c3c3;border-radius:8px;padding:8px 14px;font-family:inherit;font-size:13px}.dash-del:hover{background:#fbeeee}.dash-reset{color:#5a6478;cursor:pointer;background:#fff;border:1px solid #cdd5e6;border-radius:8px;padding:8px 14px;font-family:inherit;font-size:13px}.dash-reset:hover{background:#eef2fb}.dash-bar{background:#e9edf6;border-radius:6px;flex:1;height:8px;overflow:hidden}.dash-bar>div{background:#22a35a;border-radius:6px;height:100%;transition:width .4s}.dash-frac{color:#7a86a0;text-align:right;flex:0 0 44px;font-size:12px}.np-grade{color:#5a6478;align-items:center;gap:8px;margin:2px 0 8px;font-size:14px;display:flex}.np-grade select{cursor:pointer;border:2px solid #cdd5e6;border-radius:9px;outline:none;padding:9px 11px;font-size:14px}.np-kind{gap:8px;margin-bottom:10px;display:flex}.np-kbtn{color:#5a6478;cursor:pointer;background:#fff;border:2px solid #cdd5e6;border-radius:9px;flex:1;padding:9px;font-family:inherit;font-size:14px;font-weight:600}.np-kbtn.on{color:#fff;background:#2f4ad0;border-color:#2f4ad0}.np-hint{color:#7a86a0;margin:2px 0 8px;font-size:12px;line-height:1.5}.term{cursor:help;color:#27408f;border-bottom:1.5px dotted #3550c8}.term:hover{background:#eef2ff}.memo{margin-top:18px}.memo-head{color:#7a86a0;align-items:center;gap:10px;margin-bottom:6px;font-size:12px;display:flex}.memo-clear{color:#5a6478;cursor:pointer;background:#eef1fb;border:0;border-radius:6px;padding:2px 9px;font-family:inherit;font-size:11px}.memo-clear:hover{background:#e0e6fb}.memo-area{resize:vertical;color:#1b2330;background:#fcfdff;border:2px dashed #d3dae9;border-radius:10px;outline:none;width:100%;min-height:90px;padding:10px 12px;font-family:inherit;font-size:15px;line-height:1.5}.memo-area:focus{border-color:#9fb0e0}.sketch{margin-top:12px}.sketch-tools{flex-wrap:wrap;align-items:center;gap:7px;margin-bottom:7px;display:flex}.sk-color{cursor:pointer;border:2px solid #fff;border-radius:50%;width:22px;height:22px;padding:0;box-shadow:0 0 0 1px #cdd5e6}.sk-color.on{box-shadow:0 0 0 2px #3550c8}.sk-btn{color:#5a6478;cursor:pointer;background:#fff;border:1px solid #cdd5e6;border-radius:7px;padding:4px 10px;font-family:inherit;font-size:12px}.sk-btn.on{color:#3550c8;background:#eef1fb;border-color:#9fb0e0}.sketch-canvas{touch-action:none;cursor:crosshair;background:#fff;border:2px dashed #d3dae9;border-radius:10px;width:100%;height:220px;display:block}.lessonbtn{cursor:pointer;background:#eef1fb;border:0;border-radius:8px;padding:4px 8px;font-size:14px}.lessonbtn:hover{background:#e0e6fb}.modal .inner.lesson{max-width:600px;max-height:82vh;overflow-y:auto}.lesson-concept{background:#f5f7fc;border-radius:10px;margin:4px 0 16px;padding:12px 14px;font-size:15px;line-height:1.65}.story{border-top:1px solid #eef1f7;padding:12px 2px}.story-head{color:#2f4ad0;align-items:center;gap:6px;font-size:15px;font-weight:700;display:flex}.story-tag{color:#5a6478;background:#eef1fb;border-radius:20px;padding:2px 8px;font-size:10px;font-weight:600}.story-body{color:#333c4d;margin-top:6px;font-size:14px;line-height:1.65}.figure-link{font:inherit;color:#2f4ad0;cursor:pointer;background:0 0;border:0;border-bottom:1.5px dotted #2f4ad0;margin:0;padding:0;font-weight:700;display:inline}.figure-link:hover{background:#eef2ff}.term-link{color:#27408f;border-bottom-style:dotted;font-weight:500}.figure-modal{z-index:60}.figure-era{color:#7a86a0;margin:-2px 0 10px;font-size:12px}.modal{z-index:50;background:#0f142880;justify-content:center;align-items:center;padding:20px;display:flex;position:fixed;inset:0}.modal .inner{background:#fff;border-radius:14px;width:100%;max-width:520px;padding:24px}.modal pre{white-space:pre-wrap;margin:0;font-family:inherit;font-size:14px;line-height:1.6}.modal .inner h3{color:#2f4ad0;margin:0 0 8px;font-size:18px}.modal .def{font-size:15px;line-height:1.6}.modal .ex{color:#5a6478;background:#f5f7fc;border-radius:8px;margin-top:10px;padding:10px 12px;font-size:13px}.cwrap{max-width:980px;margin:22px auto;padding:0 16px}.grades{flex-wrap:wrap;gap:8px;margin-bottom:8px;display:flex}.gbtn{cursor:pointer;color:#3550c8;background:#fff;border:2px solid #cdd5e6;border-radius:10px;padding:9px 16px;font-size:15px;font-weight:600}.gbtn.active{color:#fff;background:#2f4ad0;border-color:#2f4ad0}.summary{color:#5a6478;margin:6px 2px 16px;font-size:13px}.learner{color:#fff;opacity:.95;font-size:13px}.uprog{vertical-align:middle;align-items:center;gap:6px;margin-left:8px;display:inline-flex}.uprog-bar{background:#e9edf6;border-radius:6px;width:56px;height:6px;display:inline-block;overflow:hidden}.uprog-bar>span{background:#22a35a;border-radius:6px;height:100%;display:block}.uprog-txt{color:#7a86a0;font-size:11px}.legend{color:#5a6478;flex-wrap:wrap;gap:12px;margin-bottom:18px;font-size:12px;display:flex}.legend span{align-items:center;gap:5px;display:inline-flex}.dot{border-radius:3px;width:10px;height:10px;display:inline-block}.d-수{background:#3550c8}.d-도{background:#22a35a}.d-관{background:#e08a1e}.d-자{background:#8a4fd0}.sems{grid-template-columns:1fr 1fr;gap:16px;display:grid}@media (max-width:720px){.sems{grid-template-columns:1fr}}.sem h2{color:#3550c8;margin:0 0 12px;font-size:14px}.unit{border-top:1px solid #eef1f7;align-items:center;gap:10px;padding:11px 8px;display:flex}.unit:first-of-type{border-top:0}.unit .uno{color:#3550c8;background:#eef1fb;border-radius:6px;flex:0 0 22px;justify-content:center;align-items:center;width:22px;height:22px;font-size:12px;font-weight:700;display:flex}.unit .nm{flex:1;font-size:15px}.dbadge{color:#fff;border-radius:20px;padding:2px 8px;font-size:10px}.b-수{background:#3550c8}.b-도{background:#22a35a}.b-관{background:#e08a1e}.b-자{background:#8a4fd0}.have{color:#22a35a;font-size:11px;font-weight:700}.soon{color:#aeb6c6;font-size:11px}.learn{color:#fff;cursor:pointer;background:#22a35a;border:0;border-radius:8px;padding:6px 11px;font-size:12px;font-weight:600}.learn:hover{background:#1c8f4d}.chips{flex-wrap:wrap;gap:8px;margin-bottom:18px;display:flex}.chip{cursor:pointer;color:#3550c8;background:#fff;border:2px solid #cdd5e6;border-radius:20px;padding:6px 14px;font-size:13px;font-weight:600}.chip.active{color:#fff;background:#2f4ad0;border-color:#2f4ad0}.story-grid{grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:16px;display:grid}.storycard{background:#fff;border-radius:14px;padding:18px;box-shadow:0 2px 10px #141e3c0f}.storycard .sc-head{color:#2f4ad0;align-items:center;gap:8px;font-size:16px;font-weight:700;display:flex}.sc-av{flex:none;display:inline-flex}.sc-av svg{border-radius:50%;width:40px;height:40px}.figure-top{align-items:center;gap:12px;display:flex}.figure-av svg{border-radius:50%;width:60px;height:60px}.storycard .sc-tag{color:#5a6478;background:#eef1fb;border-radius:20px;margin-left:auto;padding:2px 8px;font-size:10px;font-weight:600}.storycard .sc-sub{color:#7a86a0;margin:4px 0 9px;font-size:12px}.storycard .sc-body{color:#333c4d;font-size:14px;line-height:1.65}.storycard{flex-direction:column;display:flex}.storycard .sc-read{cursor:pointer;color:#5a6478;background:#fff;border:1px solid #cdd5e6;border-radius:999px;align-self:flex-end;margin-top:12px;padding:6px 14px;font-family:inherit;font-size:12px;font-weight:700}.storycard .sc-read:hover{color:#2f4ad0;background:#eef2fb}.storycard .sc-read.on{color:#fff;background:#22a35a;border-color:#22a35a}.storycard.read{opacity:.58;background:#f7f8fb}.storycard.read:hover{opacity:1}