@font-face{font-display:block;font-family:KaTeX_AMS;font-style:normal;font-weight:400;src:url(/_astro/KaTeX_AMS-Regular.BQhdFMY1.woff2)format("woff2"),url(/_astro/KaTeX_AMS-Regular.DMm9YOAa.woff)format("woff"),url(/_astro/KaTeX_AMS-Regular.DRggAlZN.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Caligraphic;font-style:normal;font-weight:700;src:url(/_astro/KaTeX_Caligraphic-Bold.Dq_IR9rO.woff2)format("woff2"),url(/_astro/KaTeX_Caligraphic-Bold.BEiXGLvX.woff)format("woff"),url(/_astro/KaTeX_Caligraphic-Bold.ATXxdsX0.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Caligraphic;font-style:normal;font-weight:400;src:url(/_astro/KaTeX_Caligraphic-Regular.Di6jR-x-.woff2)format("woff2"),url(/_astro/KaTeX_Caligraphic-Regular.CTRA-rTL.woff)format("woff"),url(/_astro/KaTeX_Caligraphic-Regular.wX97UBjC.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Fraktur;font-style:normal;font-weight:700;src:url(/_astro/KaTeX_Fraktur-Bold.CL6g_b3V.woff2)format("woff2"),url(/_astro/KaTeX_Fraktur-Bold.BsDP51OF.woff)format("woff"),url(/_astro/KaTeX_Fraktur-Bold.BdnERNNW.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Fraktur;font-style:normal;font-weight:400;src:url(/_astro/KaTeX_Fraktur-Regular.CTYiF6lA.woff2)format("woff2"),url(/_astro/KaTeX_Fraktur-Regular.Dxdc4cR9.woff)format("woff"),url(/_astro/KaTeX_Fraktur-Regular.CB_wures.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:normal;font-weight:700;src:url(/_astro/KaTeX_Main-Bold.Cx986IdX.woff2)format("woff2"),url(/_astro/KaTeX_Main-Bold.Jm3AIy58.woff)format("woff"),url(/_astro/KaTeX_Main-Bold.waoOVXN0.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:italic;font-weight:700;src:url(/_astro/KaTeX_Main-BoldItalic.DxDJ3AOS.woff2)format("woff2"),url(/_astro/KaTeX_Main-BoldItalic.SpSLRI95.woff)format("woff"),url(/_astro/KaTeX_Main-BoldItalic.DzxPMmG6.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:italic;font-weight:400;src:url(/_astro/KaTeX_Main-Italic.NWA7e6Wa.woff2)format("woff2"),url(/_astro/KaTeX_Main-Italic.BMLOBm91.woff)format("woff"),url(/_astro/KaTeX_Main-Italic.3WenGoN9.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:normal;font-weight:400;src:url(/_astro/KaTeX_Main-Regular.B22Nviop.woff2)format("woff2"),url(/_astro/KaTeX_Main-Regular.Dr94JaBh.woff)format("woff"),url(/_astro/KaTeX_Main-Regular.ypZvNtVU.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Math;font-style:italic;font-weight:700;src:url(/_astro/KaTeX_Math-BoldItalic.CZnvNsCZ.woff2)format("woff2"),url(/_astro/KaTeX_Math-BoldItalic.iY-2wyZ7.woff)format("woff"),url(/_astro/KaTeX_Math-BoldItalic.B3XSjfu4.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Math;font-style:italic;font-weight:400;src:url(/_astro/KaTeX_Math-Italic.t53AETM-.woff2)format("woff2"),url(/_astro/KaTeX_Math-Italic.DA0__PXp.woff)format("woff"),url(/_astro/KaTeX_Math-Italic.flOr_0UB.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_SansSerif;font-style:normal;font-weight:700;src:url(/_astro/KaTeX_SansSerif-Bold.D1sUS0GD.woff2)format("woff2"),url(/_astro/KaTeX_SansSerif-Bold.DbIhKOiC.woff)format("woff"),url(/_astro/KaTeX_SansSerif-Bold.CFMepnvq.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_SansSerif;font-style:italic;font-weight:400;src:url(/_astro/KaTeX_SansSerif-Italic.C3H0VqGB.woff2)format("woff2"),url(/_astro/KaTeX_SansSerif-Italic.DN2j7dab.woff)format("woff"),url(/_astro/KaTeX_SansSerif-Italic.YYjJ1zSn.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_SansSerif;font-style:normal;font-weight:400;src:url(/_astro/KaTeX_SansSerif-Regular.DDBCnlJ7.woff2)format("woff2"),url(/_astro/KaTeX_SansSerif-Regular.CS6fqUqJ.woff)format("woff"),url(/_astro/KaTeX_SansSerif-Regular.BNo7hRIc.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Script;font-style:normal;font-weight:400;src:url(/_astro/KaTeX_Script-Regular.D3wIWfF6.woff2)format("woff2"),url(/_astro/KaTeX_Script-Regular.D5yQViql.woff)format("woff"),url(/_astro/KaTeX_Script-Regular.C5JkGWo-.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size1;font-style:normal;font-weight:400;src:url(/_astro/KaTeX_Size1-Regular.mCD8mA8B.woff2)format("woff2"),url(/_astro/KaTeX_Size1-Regular.C195tn64.woff)format("woff"),url(/_astro/KaTeX_Size1-Regular.Dbsnue_I.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size2;font-style:normal;font-weight:400;src:url(/_astro/KaTeX_Size2-Regular.Dy4dx90m.woff2)format("woff2"),url(/_astro/KaTeX_Size2-Regular.oD1tc_U0.woff)format("woff"),url(/_astro/KaTeX_Size2-Regular.B7gKUWhC.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size3;font-style:normal;font-weight:400;src:url(data:font/woff2;base64,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)format("woff2"),url(/_astro/KaTeX_Size3-Regular.CTq5MqoE.woff)format("woff"),url(/_astro/KaTeX_Size3-Regular.DgpXs0kz.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size4;font-style:normal;font-weight:400;src:url(/_astro/KaTeX_Size4-Regular.Dl5lxZxV.woff2)format("woff2"),url(/_astro/KaTeX_Size4-Regular.BF-4gkZK.woff)format("woff"),url(/_astro/KaTeX_Size4-Regular.DWFBv043.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Typewriter;font-style:normal;font-weight:400;src:url(/_astro/KaTeX_Typewriter-Regular.CO6r4hn1.woff2)format("woff2"),url(/_astro/KaTeX_Typewriter-Regular.C0xS9mPB.woff)format("woff"),url(/_astro/KaTeX_Typewriter-Regular.D3Ib7_Hf.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{-webkit-clip-path:inset(50%);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:#12151c;--panel:#1a1f29;--ink:#e6e9f1;--muted:#9aa3b6;--line:#2d3442;--accent:#8fa6ff;--accent-soft:#232c4a;--good:#63d19b;--good-soft:#163126;--bad:#ff8d80;--bad-soft:#3b1f1c;--warn:#f0c75a;--warn-soft:#362d12;--def:#8fa6ff;--def-soft:#1e2640;--thm:#c99be8;--thm-soft:#2a2039;--why:#f0c75a;--why-soft:#322a12;--app:#63d19b;--app-soft:#15302a;--app2:#5cc8dc;--app2-soft:#123038;--beyond:#ff9f6b;--beyond-soft:#382316;--seed:#9aa3b6;--seed-soft:#1f242e;--T:#2f9a6a;--A:#4f6fd6;--B:#c8622a;--plot-grid:#2d3442;--plot-axis:#6b7489;--ex:#e07ab0;--ex-soft:#33202d;--hist:#c8a36a;--hist-soft:#2b251b;--display:"Manrope", "IBM Plex Sans", system-ui, sans-serif;--body:"IBM Plex Sans", system-ui, -apple-system, "Segoe UI", sans-serif;--mono:"IBM Plex Mono", ui-monospace, Menlo, Consolas, monospace;--unit:var(--accent);--topbar-h:57px;color-scheme:dark}:root[data-theme=light]{--bg:#f6f7fa;--panel:#fff;--ink:#1b2233;--muted:#5b6477;--line:#d6dae3;--accent:#2f4fb8;--accent-soft:#e4e9fb;--good:#1f7a4d;--good-soft:#dff3e8;--bad:#b3372b;--bad-soft:#fbe3df;--warn:#8a6100;--warn-soft:#fbf0cf;--def:#2f4fb8;--def-soft:#e4e9fb;--thm:#7b3fa8;--thm-soft:#f1e7f8;--why:#a86200;--why-soft:#fdf0d9;--app:#1f7a4d;--app-soft:#dff3e8;--app2:#0f7287;--app2-soft:#dcf1f5;--beyond:#c0561d;--beyond-soft:#fde8db;--seed:#5b6477;--seed-soft:#eef0f4;--T:#1f7a4d;--A:#2f4fb8;--B:#c0561d;--plot-grid:#d6dae3;--plot-axis:#5b6477;--ex:#a83a78;--ex-soft:#fbe6f1;--hist:#8a6a2f;--hist-soft:#f6efe2;color-scheme:light}*{box-sizing:border-box}html{scroll-padding-top:72px}body{font-variant-numeric:tabular-nums;background:var(--bg);color:var(--ink);font-family:var(--body);margin:0;font-size:15.5px;line-height:1.55}a{color:var(--accent)}h1{font-family:var(--display);text-wrap:balance;margin:0;font-size:1.9rem;line-height:1.2}h2{font-family:var(--display);border-top:2px solid var(--line);text-wrap:balance;margin:30px 0 6px;padding-top:18px;font-size:1.45rem}h3{font:600 1.05rem var(--body);margin:22px 0 6px}h4{font:600 .78rem var(--body);letter-spacing:.07em;text-transform:uppercase;color:var(--muted);margin:18px 0 6px}p{margin:0 0 10px}ul,ol{margin:0 0 10px;padding-left:22px}li{margin-bottom:4px}code{font-family:var(--mono);background:var(--bg);border:1px solid var(--line);border-radius:4px;padding:0 4px;font-size:.9em}table{border-collapse:collapse;max-width:100%;margin:6px 0 12px;font-size:.92rem;display:block;overflow-x:auto}th,td{border:1px solid var(--line);text-align:left;vertical-align:top;padding:5px 9px}th{font:600 .74rem var(--body);letter-spacing:.05em;text-transform:uppercase;color:var(--muted);background:var(--bg)}.katex{font-size:1.1em}.katex-display{margin:.7em 0;padding:2px 0;overflow:auto hidden}button:focus-visible,input:focus-visible,select:focus-visible,a:focus-visible{outline:2px solid var(--accent);outline-offset:2px}.top{padding-block:10px;padding-left:max(16px, env(safe-area-inset-left,0px));padding-right:max(16px, env(safe-area-inset-right,0px));border-bottom:1px solid var(--line);background:var(--bg);align-items:center;gap:16px;display:flex}.brand{font:700 1.05rem var(--display);color:var(--ink);white-space:nowrap;text-decoration:none}.search-open{max-width:640px;font:400 .92rem var(--body);color:var(--muted);background:var(--panel);border:1px solid var(--line);cursor:pointer;text-align:left;border-radius:8px;flex:1;align-items:center;gap:10px;margin-inline:auto;padding:8px 12px;display:flex}.search-open:hover{border-color:var(--accent);color:var(--ink)}.search-open span{text-overflow:ellipsis;white-space:nowrap;flex:1;min-width:0;overflow:hidden}kbd{font:500 .72rem var(--body);color:var(--muted);background:var(--bg);border:1px solid var(--line);white-space:nowrap;border-bottom-width:2px;border-radius:4px;padding:1px 6px}.top .links{align-items:center;gap:2px;display:flex}.top .links a,.themebtn{font:500 .86rem var(--body);color:var(--muted);cursor:pointer;background:0 0;border:1px solid #0000;border-radius:6px;padding:5px 9px;text-decoration:none}.top .links a:hover,.themebtn:hover{color:var(--accent);background:var(--accent-soft)}.shell{grid-template-columns:minmax(0,1fr);display:grid}#side{padding:6px 16px 0}.tocwrap>summary{cursor:pointer;font:600 .88rem var(--body);color:var(--accent);padding:6px 0;list-style:none}.tocwrap>summary::-webkit-details-marker{display:none}.tocwrap>summary:before{content:"▸ "}.tocwrap[open]>summary:before{content:"▾ "}#toc .unit-h{font:600 .72rem var(--body);letter-spacing:.06em;text-transform:uppercase;color:var(--muted);border-left:3px solid var(--c,var(--accent));margin:14px 0 4px;padding:0 9px 2px;text-decoration:none;display:block}#toc a.ch{font:500 .86rem/1.3 var(--body);color:var(--muted);border-radius:6px;padding:5px 9px;text-decoration:none;display:block}#toc a.ch .n{color:var(--ink);margin-right:4px;font-weight:600}#toc a.ch:hover{color:var(--ink);background:var(--panel)}#toc a.ch.on{color:var(--accent);background:var(--accent-soft)}#toc a.ch.on .n{color:var(--accent)}.wrap{width:100%;min-width:0;padding-block:22px 80px;padding-left:max(16px, env(safe-area-inset-left,0px));padding-right:max(16px, env(safe-area-inset-right,0px))}.onpage{display:none}@media (width>=1000px){.shell{grid-template-columns:270px minmax(0,1fr)}.tocwrap>summary{display:none}.top{top:env(safe-area-inset-top,0px);z-index:20;height:var(--topbar-h);position:sticky}#side{top:var(--topbar-h);height:calc(100vh - var(--topbar-h));border-right:1px solid var(--line);align-self:start;padding:8px 12px 56px 16px;position:sticky;overflow-y:auto}.wrap{max-width:1440px;padding-inline:40px}.side-off .shell{grid-template-columns:minmax(0,1fr)}.side-off #side{display:none}.side-off .wrap{margin-inline:auto}}@media (width>=1400px){.shell.has-toc{grid-template-columns:270px minmax(0,1fr) 230px}.side-off .shell.has-toc{grid-template-columns:minmax(0,1fr) 230px}.onpage{top:var(--topbar-h);max-height:calc(100vh - var(--topbar-h));align-self:start;padding:26px 16px 40px 8px;font-size:.84rem;display:block;position:sticky;overflow-y:auto}.onpage-h{font:600 .7rem var(--body);letter-spacing:.07em;text-transform:uppercase;color:var(--muted);margin-bottom:6px}#onpage a{color:var(--muted);border-left:2px solid var(--line);padding:3px 8px;line-height:1.35;text-decoration:none;display:block}#onpage a.sub{padding-left:18px;font-size:.8rem}#onpage a:hover{color:var(--ink)}#onpage a.on{color:var(--accent);border-left-color:var(--accent)}}.side-toggle{z-index:30;font:600 .78rem var(--body);border:1px solid var(--line);background:var(--panel);color:var(--ink);cursor:pointer;opacity:.85;border-radius:6px;padding:5px 10px;position:fixed;bottom:10px;left:10px}.side-toggle:hover{opacity:1;border-color:var(--accent)}@media (width<=999px){.side-toggle,.search-open span{display:none}.search-open{flex:none;margin-inline:auto 0}.top .links a:first-child{display:none}}.sx{z-index:50;position:fixed;inset:0}.sx[hidden]{display:none}.sx-back{background:color-mix(in srgb, var(--bg) 70%, transparent);backdrop-filter:blur(2px);position:absolute;inset:0}.sx-box{background:var(--panel);border:1px solid var(--line);border-radius:10px;flex-direction:column;width:min(760px,100% - 32px);max-height:76vh;margin:min(10vh,90px) auto 0;display:flex;position:relative;overflow:hidden;box-shadow:0 20px 60px #00000059}.sx-in{border-bottom:1px solid var(--line);color:var(--muted);align-items:center;gap:10px;padding:12px 16px;display:flex}.sx-in input{min-width:0;font:400 1.05rem var(--body);color:var(--ink);background:0 0;border:0;outline:none;flex:1}.sx-in kbd{cursor:pointer}.sx-res{padding:6px 8px 10px;overflow-y:auto}.sx-group{font:600 .68rem var(--body);letter-spacing:.07em;text-transform:uppercase;color:var(--muted);padding:10px 8px 4px}.sx-item{color:var(--ink);border-radius:6px;grid-template-columns:minmax(0,1fr) auto;gap:2px 10px;padding:8px 10px;text-decoration:none;display:grid}.sx-item.on,.sx-item:hover{background:var(--accent-soft)}.sx-t{font-weight:600}.sx-k{color:var(--accent);align-self:center;font-size:.74rem}.sx-o{color:var(--muted);grid-column:1/-1;font-size:.88rem}.sx-o mark{color:var(--accent);background:0 0;font-weight:600}.sx-c{color:var(--muted);opacity:.8;grid-column:1/-1;font-size:.76rem}.sx-empty{color:var(--muted);padding:14px 10px;font-size:.92rem}.sx-foot{border-top:1px solid var(--line);color:var(--muted);gap:16px;padding:8px 16px;font-size:.78rem;display:flex}.sx-foot kbd{margin-right:3px}.wrap p,.wrap>ul,.wrap>ol,article>ul,article>ol{max-width:88ch}.box,.problem,.quiz{max-width:none}.box p,.box ul,.box ol,.problem p{max-width:86ch}.crumbs{font:500 .8rem var(--body);color:var(--muted);margin-bottom:6px}.crumbs a{color:var(--muted)}.summary{color:var(--muted);max-width:82ch;margin:6px 0 10px;font-size:1.05rem}.badges{flex-wrap:wrap;gap:6px;margin:6px 0 14px;display:flex}.badge{font:600 .68rem var(--body);letter-spacing:.05em;text-transform:uppercase;color:#fff;white-space:nowrap;border-radius:4px;padding:2px 7px}.badge.T{background:var(--T)}.badge.A{background:var(--A)}.badge.B{background:var(--B)}.badge.src{background:var(--accent-soft);color:var(--accent);text-transform:none;letter-spacing:0;font:500 .74rem var(--body)}.sits{grid-template-columns:repeat(2,minmax(0,1fr));gap:8px;margin:8px 0 22px;display:grid}.sits>div:nth-child(3){grid-column:1/-1}.sits .else{grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:10px 28px;margin-top:4px;display:grid}.sits .else>div{min-width:0}.sits .soon{color:var(--muted)}@media (width<=640px){.sits{grid-template-columns:minmax(0,1fr)}}.sits{border-block:1px solid var(--line);gap:8px 28px;padding-block:10px}.sits>div{min-width:0;font-size:.87rem}.sits h5{font:600 .68rem var(--body);text-transform:uppercase;letter-spacing:.07em;color:var(--muted);margin:0 0 4px}.pager{justify-content:space-between;gap:12px;margin-top:44px;display:flex}.pager a{background:var(--panel);border:1px solid var(--line);color:var(--ink);border-radius:8px;flex:1;padding:10px 14px;text-decoration:none}.pager a:hover{border-color:var(--accent)}.pager a small{color:var(--muted);font:500 .74rem var(--body);display:block}.pager a.next{text-align:right}.box{border-left:3px solid var(--k);background:color-mix(in srgb, var(--k-soft) 55%, var(--bg));border-radius:0 6px 6px 0;margin:12px 0;padding:10px 14px}.box>.tag{font:600 .68rem var(--body);letter-spacing:.07em;text-transform:uppercase;color:var(--k);flex-wrap:wrap;align-items:center;gap:6px;margin-bottom:3px;display:flex}.box.def{--k:var(--def);--k-soft:var(--def-soft)}.box.thm{--k:var(--thm);--k-soft:var(--thm-soft)}.box.why{--k:var(--why);--k-soft:var(--why-soft)}.box.app{--k:var(--app);--k-soft:var(--app-soft)}.box.app2{--k:var(--app2);--k-soft:var(--app2-soft)}.box.warn{--k:var(--bad);--k-soft:var(--bad-soft)}.box.beyond{--k:var(--beyond);--k-soft:var(--beyond-soft)}.box.seed,.box.need{--k:var(--seed);--k-soft:var(--seed-soft)}.box.connect{--k:var(--accent);--k-soft:var(--panel);border:1px solid var(--line);border-left:3px solid var(--accent)}.box.beyond{border-left-style:double;border-left-width:5px}.box.example{--k:var(--ex);--k-soft:var(--ex-soft)}.box.history{--k:var(--hist);--k-soft:var(--hist-soft)}.box.history p{font-size:.95rem}.box.example .ex-title{margin-bottom:4px;font-weight:700}.box.example ol{padding-left:22px}.box.example li{margin-bottom:6px}.box.example .why{color:var(--muted);font-size:.93rem}.box p:last-child,.box ul:last-child{margin-bottom:0}.term{font-weight:700}.box h4.term-h{font:700 1rem var(--body);letter-spacing:0;text-transform:none;color:var(--ink);margin:2px 0;scroll-margin-top:16px}.oneline{border-top:1px dashed color-mix(in srgb, var(--k) 35%, transparent);margin:8px 0 0;padding-top:6px;font-size:.93rem}.oneline b{color:var(--k);font:600 .66rem var(--body);text-transform:uppercase;letter-spacing:.07em;margin-right:8px}.proof{border:1px solid var(--line);background:var(--panel);border-radius:8px;margin:14px 0;padding:12px 16px}.proof-h{font-family:var(--display);flex-wrap:wrap;align-items:center;gap:8px;font-size:1.05rem;display:flex}.proof-idea{color:var(--muted);margin:6px 0 4px;font-size:.93rem}.proof-idea b{color:var(--ink)}.proof-c{flex-wrap:wrap;align-items:center;gap:8px;margin:8px 0 10px;display:flex}.proof-c button,.viz button{font:600 .84rem var(--body);color:var(--accent);background:var(--accent-soft);cursor:pointer;border:0;border-radius:6px;padding:6px 12px}.proof-c button.primary,.viz button.primary{color:var(--panel);background:var(--accent)}.viz button:disabled{opacity:.45;cursor:default}.proof-c .count{font:500 .78rem var(--body);color:var(--muted)}.step{border-top:1px solid var(--line);grid-template-columns:minmax(0,1.2fr) minmax(0,1fr);align-items:start;gap:2px 18px;padding:7px 8px;display:grid}.step.hidden{display:none}.step.new{background:var(--accent-soft);border-radius:4px}.step .r{font-size:.9rem}.step .r .rb{color:var(--thm)}.step .r small{color:var(--muted);margin-top:3px;display:block}.step .r.closed .rb,.step .r.closed small,.step .r .reveal{display:none}.step .r.closed .reveal{font:600 .72rem var(--body);color:var(--accent);background:var(--accent-soft);cursor:pointer;border:0;border-radius:4px;padding:1px 8px;display:inline-block}@media (width<=700px){.step{grid-template-columns:minmax(0,1fr)}}.problem{border-top:1px solid var(--line);padding:12px 0}.problem .lv{font:600 .66rem var(--body);text-transform:uppercase;letter-spacing:.06em;border-radius:4px;margin-right:8px;padding:1px 7px}.lv.check{color:var(--good);background:var(--good-soft)}.lv.use{color:var(--app2);background:var(--app2-soft)}.lv.prove{color:var(--thm);background:var(--thm-soft)}.lv.stretch{color:var(--beyond);background:var(--beyond-soft)}.problem .psrc{font:500 .74rem var(--body);color:var(--muted)}.problem>div:first-child{margin-bottom:4px}details.sol{border:1px solid var(--line);background:var(--panel);border-radius:6px;margin:8px 0 0}details.sol summary{cursor:pointer;font:600 .82rem var(--body);color:var(--accent);padding:6px 12px;list-style:none}details.sol summary::-webkit-details-marker{display:none}details.sol summary:before{content:"Show";font:600 .66rem var(--body);color:var(--accent);background:var(--accent-soft);border-radius:4px;margin-right:8px;padding:1px 6px}details.sol[open] summary:before{content:"Hide"}details.sol[open] summary{border-bottom:1px solid var(--line)}details.sol>div{background:var(--good-soft);border-radius:0 0 6px 6px;padding:8px 12px}details.sol>div>:last-child{margin-bottom:0}.viz{border:1px solid var(--line);background:var(--panel);border-radius:8px;margin:16px 0;overflow:hidden}.viz-h{border-bottom:1px solid var(--line);font-family:var(--display);flex-wrap:wrap;align-items:center;gap:8px;padding:9px 14px;font-size:1.05rem;display:flex}.viz-h .grow{flex:1}.viz-c{border-top:1px solid var(--line);flex-wrap:wrap;align-items:center;gap:10px;padding:9px 14px;font-size:.88rem;display:flex}.viz-c label{color:var(--muted);align-items:center;gap:6px;display:flex}.viz-c input[type=range]{width:130px}.viz-c select{font:400 .86rem var(--body);border:1px solid var(--line);background:var(--bg);color:var(--ink);border-radius:5px;padding:5px 8px}.viz-say{border-top:1px solid var(--line);background:var(--bg);padding:9px 14px;font-size:.93rem}.viz-say>div+div{margin-top:4px}.viz-canvas{background:var(--panel);width:100%;height:400px;position:relative}.viz-ph{height:400px;color:var(--muted);justify-content:center;align-items:center;font-size:.9rem;display:flex}.hero{padding:14px 0 4px}.hero h1{font-size:2.3rem}.hero p{color:var(--muted);max-width:78ch;margin-top:8px;font-size:1.05rem}.cards{grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:14px;margin:18px 0;display:grid}.card{color:var(--ink);background:var(--panel);border:1px solid var(--line);border-radius:8px;padding:14px 16px;text-decoration:none;display:block}a.card:hover{border-color:var(--c,var(--accent))}.card h3{font-family:var(--display);align-items:baseline;gap:8px;margin:0 0 4px;font-size:1.15rem;display:flex}.card h3 .un{font:600 .8rem var(--body);color:var(--c,var(--accent))}.card p{color:var(--muted);margin:0 0 6px;font-size:.92rem}.card .meta{font:500 .74rem var(--body);color:var(--muted)}.card ul{margin:8px 0 0;padding-left:18px;font-size:.9rem}.dict-letter{font:700 1.3rem var(--display);color:var(--accent);border-bottom:2px solid var(--line);margin:22px 0 4px}.dict-item{border-bottom:1px solid var(--line);padding:7px 0}.dict-item a{font-weight:600}.dict-item>div{color:var(--muted);font-size:.9rem}.units{gap:0;margin:18px 0 0;padding:0;list-style:none;display:grid}.units>li{border-top:1px solid var(--line);grid-template-columns:54px minmax(0,1fr);gap:14px;padding-block:16px;display:grid}.units .un{font:700 2rem/1 var(--display);color:var(--c,var(--accent));text-align:right;padding-top:2px}.units h2{border:0;margin:0 0 2px;padding:0;font-size:1.3rem}.units p{color:var(--muted);margin:0 0 6px}.units .meta{font-size:.86rem}.units ul{gap:2px;margin:6px 0 0;padding:0;list-style:none;display:grid}.units ul a{color:var(--ink);text-decoration:none}.units ul a:hover{color:var(--accent)}.units .cn{min-width:2.6em;color:var(--c,var(--accent));font-weight:600;display:inline-block}.quiz{border:1px solid var(--line);background:var(--panel);border-radius:8px;margin:12px 0;padding:10px 14px}.quiz-q{margin-bottom:8px}.quiz-tag{font:600 .66rem var(--body);letter-spacing:.07em;text-transform:uppercase;color:var(--accent);background:var(--accent-soft);border-radius:4px;margin-right:8px;padding:1px 6px}.quiz-opts{flex-wrap:wrap;gap:8px;display:flex}.quiz-opts button{font:400 .92rem var(--body);color:var(--ink);background:var(--bg);border:1px solid var(--line);cursor:pointer;text-align:left;border-radius:6px;padding:6px 12px}.quiz-opts button:hover{border-color:var(--accent)}.quiz-opts button.right{background:var(--good-soft);border-color:var(--good);color:var(--good);font-weight:600}.quiz-opts button.wrong{background:var(--bad-soft);border-color:var(--bad);color:var(--bad)}.quiz-why{margin-top:8px;font-size:.93rem}.quiz-verdict.ok{color:var(--good);font-weight:700}.quiz-verdict.no{color:var(--bad);font-weight:700}.pv{z-index:40;background:var(--panel);border:1px solid var(--line);border-left:3px solid var(--def);pointer-events:none;border-radius:0 8px 8px 0;width:min(420px,100vw - 24px);padding:10px 14px;font-size:.92rem;position:fixed;box-shadow:0 12px 40px #00000059}.pv[hidden]{display:none}.pv-k{font:600 .66rem var(--body);letter-spacing:.07em;text-transform:uppercase;color:var(--def)}.pv-n{margin:1px 0 4px;font-weight:700}.pv-w{color:var(--muted);margin-top:6px}.pv-w b{color:var(--ink);font-weight:600}.pv-c{color:var(--muted);margin-top:6px;font-size:.78rem}.skim .proof,.skim .box.history,.skim .box.beyond,.skim .problem,.skim .box.connect,.skim #problems{display:none}#skim[aria-pressed=true]{color:var(--accent);background:var(--accent-soft)}.watch{padding:0;list-style:none}.watch li{border-bottom:1px solid var(--line);padding:6px 0}.watch span{color:var(--muted);font-size:.9rem}table.notation td:first-child{white-space:nowrap;font-size:1.05rem}.pw{border:1px solid var(--line);border-left:3px solid var(--thm);background:var(--panel);border-radius:0 8px 8px 0;margin:14px 0;padding:12px 16px}.pw-h{flex-wrap:wrap;align-items:center;gap:8px;display:flex}.pw-tag{font:600 .66rem var(--body);letter-spacing:.07em;text-transform:uppercase;color:var(--thm);background:var(--thm-soft);border-radius:4px;padding:1px 6px}.pw-say{color:var(--muted);margin:6px 0 8px;font-size:.92rem}.pw-done{margin:0 0 8px;padding-left:24px}.pw-done li{border-bottom:1px dashed var(--line);padding:4px 0}.pw-why{color:var(--thm);font-size:.86rem}.pw-pool{flex-wrap:wrap;gap:8px;display:flex}.pw-pool button{font:400 .92rem var(--body);color:var(--ink);background:var(--bg);border:1px solid var(--line);cursor:pointer;text-align:left;border-radius:6px;max-width:100%;padding:7px 12px}.pw-pool button:hover{border-color:var(--thm)}.pw-pool button.shake{border-color:var(--bad);animation:.35s pwshake}@keyframes pwshake{25%{transform:translate(-4px)}75%{transform:translate(4px)}}@media (prefers-reduced-motion:reduce){.pw-pool button.shake{animation:none}}.pw-msg{margin-top:8px;font-size:.92rem}.pw-msg.ok{color:var(--good);font-weight:600}.pw-msg.no{color:var(--bad)}.pw-c{align-items:center;gap:10px;margin-top:8px;display:flex}.pw-c button{font:600 .84rem var(--body);color:var(--accent);background:var(--accent-soft);cursor:pointer;border:0;border-radius:6px;padding:6px 12px}.pw-c button.primary{color:var(--panel);background:var(--accent)}.pw-lines{padding-left:24px}.pw-lines li{border-bottom:1px dashed var(--line);padding:6px 0}.pw-lines select{max-width:100%;font:400 .88rem var(--body);border:1px solid var(--line);background:var(--bg);color:var(--ink);border-radius:5px;margin-top:4px;padding:4px 8px}.pw-mark{margin-left:8px;font-weight:700}.pw-mark.ok{color:var(--good)}.pw-mark.no{color:var(--bad)}.skim .pw{display:none}.fc-bar{flex-wrap:wrap;align-items:center;gap:10px;margin:10px 0 14px;font-size:.92rem;display:flex}.fc-bar select{font:400 .9rem var(--body);border:1px solid var(--line);background:var(--panel);color:var(--ink);border-radius:6px;padding:5px 8px}.fc-stats{color:var(--muted)}.fc-link{font:500 .82rem var(--body);color:var(--muted);cursor:pointer;background:0 0;border:0;margin-left:auto;text-decoration:underline}.fc{border:1px solid var(--line);border-left:3px solid var(--def);background:var(--panel);border-radius:0 10px 10px 0;max-width:760px;padding:20px 22px}.fc-k{font:600 .68rem var(--body);letter-spacing:.07em;text-transform:uppercase;color:var(--def)}.fc-n{font:700 1.5rem var(--display);margin:4px 0}.fc-c{color:var(--muted);font-size:.85rem}.fc-back{border-top:1px dashed var(--line);margin-top:14px;padding-top:12px}.fc-o{font-size:1.05rem}.fc-w{color:var(--muted);margin-top:8px}.fc-w b{color:var(--ink)}.fc-back a{margin-top:10px;font-size:.88rem;display:inline-block}.fc-btns{flex-wrap:wrap;gap:8px;margin-top:16px;display:flex}.fc-btns button{font:600 .9rem var(--body);color:var(--accent);background:var(--accent-soft);cursor:pointer;border:0;border-radius:6px;padding:8px 16px}.fc-btns button.primary{color:var(--panel);background:var(--accent)}#fc-grade{gap:8px;display:inline-flex}#fc-grade[hidden]{display:none}#fc-grade [data-g="0"]{color:var(--bad);background:var(--bad-soft)}#fc-grade [data-g="3"]{color:var(--good);background:var(--good-soft)}.ex-c{flex-wrap:wrap;align-items:center;gap:8px;margin:6px 0 4px;display:flex}.ex-c[hidden]{display:none}.ex-c button{font:600 .82rem var(--body);color:var(--ex);background:color-mix(in srgb, var(--ex) 14%, transparent);cursor:pointer;border:0;border-radius:6px;padding:5px 11px}.ex-c button.primary{color:var(--panel);background:var(--ex)}.ex-c button:disabled{opacity:.45;cursor:default}.ex-c .count{color:var(--muted);font-size:.8rem}.box.example .ex-hidden{display:none}.box.example li.ex-new,.box.example p.ex-new{background:color-mix(in srgb, var(--ex) 10%, transparent);border-radius:4px}.box.example .why.closed{display:none}.why-btn{font:600 .72rem var(--body);color:var(--ex);background:color-mix(in srgb, var(--ex) 14%, transparent);cursor:pointer;border:0;border-radius:4px;margin-left:6px;padding:1px 8px}.skim .box.example .ex-hidden{display:revert}.skim .box.example .why.closed{display:inline}.skim .why-btn,.skim .ex-c{display:none}.nc-row{flex-wrap:wrap;align-items:center;gap:8px;display:flex}.nc-row input{font:400 .95rem var(--body);color:var(--ink);background:var(--bg);border:1px solid var(--line);border-radius:6px;width:14rem;max-width:100%;padding:6px 10px}.nc-row input.right{border-color:var(--good);background:var(--good-soft)}.nc-row input.wrong{border-color:var(--bad);background:var(--bad-soft)}.nc-row button{font:600 .84rem var(--body);color:var(--accent);background:var(--accent-soft);cursor:pointer;border:0;border-radius:6px;padding:6px 12px}.nc-row .nc-go{color:var(--panel);background:var(--accent)}.nc-hinttext{color:var(--muted);margin-top:6px;font-size:.9rem}.unit-hero{border-left:4px solid var(--c);margin:8px 0 18px;padding:4px 0 4px 18px}.unit-hero .un{font:700 .8rem var(--body);letter-spacing:.08em;text-transform:uppercase;color:var(--c)}.unit-hero h1{margin:4px 0 6px}.unit-hero .meta{color:var(--muted);margin:0;font-size:.88rem}.unit-chs{gap:2px;margin:10px 0 0;padding:0;list-style:none;display:grid}.unit-chs a{color:var(--ink);border-radius:8px;grid-template-columns:3.2em minmax(0,1fr);gap:10px;padding:10px 12px;text-decoration:none;display:grid}.unit-chs a:hover{background:color-mix(in srgb, var(--c) 10%, transparent)}.unit-chs .cn{font:700 1.05rem var(--display);color:var(--c)}.unit-chs b{font-family:var(--display);font-weight:650;display:block}.unit-chs .s{color:var(--muted);margin-top:2px;font-size:.93rem;display:block}.chain{margin:14px 0 0}.chain h3{margin:0 0 6px;font-size:1rem}.chain h3 a{color:var(--ink);text-decoration:none}.chain h3 a:hover{color:var(--c)}.chain ol{border-left:2px solid color-mix(in srgb, var(--c) 45%, transparent);gap:6px;margin:0;padding:0 0 0 14px;list-style:none;display:grid}.chain li{padding-left:10px;position:relative}.chain li:before{content:"";background:var(--c);border-radius:50%;width:8px;height:8px;position:absolute;top:.6em;left:-18px}.chain li a{color:var(--ink);text-decoration:none}.chain li a:hover b{color:var(--c)}.chain .k{font:600 .72rem var(--body);letter-spacing:.05em;text-transform:uppercase;color:var(--muted)}.chain .o{color:var(--muted);font-size:.93rem}.unit-terms{flex-wrap:wrap;gap:6px;margin-top:8px;display:flex}.unit-terms a{border:1px solid var(--line);color:var(--ink);border-radius:999px;padding:3px 10px;font-size:.88rem;text-decoration:none}.unit-terms a:hover{border-color:var(--accent);color:var(--accent)}.unit-nav{border-top:1px solid var(--line);flex-wrap:wrap;justify-content:space-between;gap:12px;margin-top:28px;padding-top:14px;display:flex}.unit-nav a{text-decoration:none}.units h2 a{color:inherit;text-decoration:none}.units h2 a:hover{color:var(--c)}.pylab{border:1px solid var(--line);background:var(--panel);border-left:3px solid #4a6fd8;border-radius:10px;margin:18px 0;overflow:hidden}.pylab-h{border-bottom:1px solid var(--line);align-items:center;gap:10px;padding:10px 14px;display:flex}.pylab-src textarea{box-sizing:border-box;resize:vertical;background:color-mix(in srgb, var(--bg) 70%, var(--panel));width:100%;min-height:120px;color:var(--ink);tab-size:4;border:0;outline:none;padding:12px 14px;font:13.5px/1.55 JetBrains Mono,ui-monospace,Consolas,monospace;display:block}.pylab-src textarea:focus{box-shadow:inset 0 0 0 2px #4a6fd880}.pylab-row{border-top:1px solid var(--line);flex-wrap:wrap;align-items:center;gap:8px;padding:10px 14px;display:flex}.pylab-row .pl-status{color:var(--muted);font-size:.86rem}.pylab-out{border-top:1px solid var(--line);white-space:pre-wrap;color:var(--ink);max-height:420px;margin:0;padding:12px 14px;font:13px/1.5 ui-monospace,Consolas,monospace;overflow:auto}.pylab-out.err{color:#e0707f}.pylab-fig:not(:empty){border-top:1px solid var(--line);background:#fff;gap:10px;padding:10px 14px;display:grid}.pylab-fig img{max-width:100%;height:auto}.pylab-task{border-top:1px solid var(--line);color:var(--muted);margin:0;padding:10px 14px}.viz-play{font:600 .78rem var(--body);border:1px solid var(--line);color:var(--ink);cursor:pointer;background:0 0;border-radius:999px;padding:3px 12px}.viz-play:before{content:"▶ ";vertical-align:1px;font-size:.7em}.viz-play[aria-pressed=true]:before{content:"■ "}.viz-play:hover{border-color:var(--accent);color:var(--accent)}.unit-review{flex-direction:column;gap:4px;display:flex}.ur-item[hidden]{display:none}.ur-item .quiz{margin-top:2px}.ur-src{font:600 .74rem var(--body);letter-spacing:.04em;text-transform:uppercase;color:var(--muted);text-decoration:none}.ur-src:hover{color:var(--accent)}.ur-bar{order:999;align-items:center;gap:12px;margin-top:10px;display:flex}.ur-count{color:var(--muted);font-size:.88rem}.home{max-width:1180px;padding-block:44px 64px;padding-left:max(20px, env(safe-area-inset-left,0px));padding-right:max(20px, env(safe-area-inset-right,0px));gap:56px;margin:0 auto;display:grid}.home h2{border:0;margin:0 0 6px;padding:0;font-size:1.5rem}.h-kicker{font:600 .74rem var(--body);letter-spacing:.1em;text-transform:uppercase;color:var(--muted)}.h-hero{max-width:820px}.h-hero h1{letter-spacing:-.02em;margin:10px 0 18px;font-size:clamp(2.4rem,6vw,4rem);font-weight:800;line-height:1.04}.h-lead{color:var(--muted);max-width:64ch;margin:0;font-size:1.15rem;line-height:1.6}.h-actions{flex-wrap:wrap;gap:10px;margin-top:26px;display:flex}.h-btn{font:600 .95rem var(--body);color:var(--ink);background:var(--panel);border:1px solid var(--line);cursor:pointer;border-radius:10px;align-items:center;gap:10px;padding:11px 18px;text-decoration:none;display:inline-flex}.h-btn:hover{border-color:var(--accent);color:var(--accent)}.h-btn.primary{background:var(--accent);border-color:var(--accent);color:var(--bg)}.h-btn.primary:hover{filter:brightness(1.08);color:var(--bg)}.h-btn.ghost{color:var(--muted);background:0 0}.h-btn[hidden]{display:none}.h-sec-head{grid-template-columns:minmax(0,1fr) minmax(0,1.4fr);align-items:end;gap:8px 40px;margin-bottom:18px;display:grid}.h-sec-head p{color:var(--muted);max-width:62ch;margin:0}.h-graph{border:1px solid var(--line);background:radial-gradient(circle at 1px 1px, color-mix(in srgb, var(--line) 80%, transparent) 1px, transparent 0) 0 0 / 22px 22px, var(--panel);border-radius:14px;height:640px;position:relative}.h-graph svg{width:100%;height:100%;position:absolute;inset:0}.h-graph path{fill:none;stroke:var(--line);stroke-width:2px;vector-effect:non-scaling-stroke;transition:stroke .15s}.h-graph path.in{stroke:var(--accent)}.h-graph path.out{stroke:var(--muted);stroke-dasharray:5 5}.h-node{width:178px;color:var(--ink);background:var(--bg);border:1px solid var(--line);border-left:4px solid var(--c);border-radius:10px;align-items:center;gap:10px;padding:9px 12px;text-decoration:none;transition:transform .15s,border-color .15s;display:flex;position:absolute;transform:translate(-50%,-50%)}.h-node:hover{border-color:var(--c);transform:translate(-50%,-50%)translateY(-2px)}.h-un{font:800 1.5rem/1 var(--display);color:var(--c);text-align:center;min-width:1.1em}.h-ut{font:650 .86rem/1.25 var(--display);gap:2px;display:grid}.h-ut small,.h-list small{font:400 .74rem var(--body);color:var(--muted)}.h-list{gap:6px;margin:0;padding:0;list-style:none;display:none}.h-list a{color:var(--ink);border:1px solid var(--line);border-left:4px solid var(--c);background:var(--panel);border-radius:10px;align-items:center;gap:12px;padding:10px 12px;text-decoration:none;display:flex}.h-list b{font-family:var(--display);display:block}.h-stats{border-block:1px solid var(--line);grid-template-columns:repeat(7,minmax(0,1fr));display:grid}.h-stats div{text-align:center;gap:2px;padding:18px 8px;display:grid}.h-stats div+div{border-left:1px solid var(--line)}.h-stats b{font:800 1.9rem/1 var(--display);font-variant-numeric:tabular-nums}.h-stats span{color:var(--muted);font-size:.82rem}.h-two{grid-template-columns:minmax(0,1.25fr) minmax(0,1fr);align-items:start;gap:28px;display:grid}.h-inside ul{gap:4px;margin:14px 0 0;padding:0;list-style:none;display:grid}.h-inside li{border-left:3px solid var(--k);color:var(--muted);margin:0;padding:10px 0 10px 18px}.h-inside li b{color:var(--ink)}.h-idea{border:1px solid var(--line);background:var(--panel);border-radius:14px;gap:8px;min-height:260px;padding:20px 22px;display:grid}.h-idea-top{justify-content:space-between;align-items:center;gap:10px;display:flex}.h-idea-top button{font:600 .82rem var(--body);color:var(--accent);background:var(--accent-soft);cursor:pointer;border:0;border-radius:999px;padding:5px 12px}.h-idea-k{color:var(--muted);font-size:.8rem}.h-idea-n{font:750 1.35rem/1.25 var(--display)}.h-idea-o{font-size:1rem}.h-idea-w{color:var(--muted);font-size:.9rem}.h-idea-go{margin-top:4px;font-size:.9rem;font-weight:600;text-decoration:none}.h-idea-go:hover{text-decoration:underline}.h-vols{grid-template-columns:1fr 1fr;gap:16px;display:grid}.h-vol{border:1px solid var(--line);border-top:4px solid var(--c);background:var(--panel);color:var(--ink);border-radius:14px;align-content:start;gap:6px;padding:22px 24px;text-decoration:none;display:grid}.h-vol h3{font:750 1.4rem var(--display);margin:0}.h-vol p{color:var(--muted);margin:0}a.h-vol:hover{border-color:var(--c)}.h-vol-go{color:var(--c);margin-top:8px;font-size:.9rem;font-weight:600}.h-vol.soon{opacity:.85}.h-labels{border-top:1px solid var(--line);color:var(--muted);padding-top:20px;font-size:.9rem}.h-labels .badge{margin-left:10px}.h-labels .badge:first-child{margin-left:0}.h-foot a{color:var(--muted)}.h-foot a:hover{color:var(--accent)}@media (width<=900px){.h-graph{display:none}.h-list{display:grid}.h-sec-head,.h-two,.h-vols{grid-template-columns:minmax(0,1fr)}.h-stats{grid-template-columns:repeat(4,minmax(0,1fr))}.h-stats div:nth-child(5){border-left:0}}@media (width<=520px){.h-stats{grid-template-columns:repeat(2,minmax(0,1fr))}.h-stats div:nth-child(odd){border-left:0}.home{gap:40px;padding-top:28px}}@media (width<=760px){.top{flex-wrap:wrap;gap:8px 12px;padding-block:8px}.top .links{scrollbar-width:none;flex:1;justify-content:flex-end;min-width:0;overflow-x:auto}.top .links::-webkit-scrollbar{display:none}.top .links a,.themebtn{white-space:nowrap;padding:5px 7px}.search-open{flex-basis:100%;order:3;max-width:none}.search-open kbd{display:none}}.h-btn{max-width:100%}.h-btn#h-continue{text-overflow:ellipsis;white-space:nowrap;display:inline-block;overflow:hidden}.h-btn#h-continue[hidden]{display:none}@media (width<=520px){.h-stats div:last-child{border-left:0;grid-column:1/-1}}.badge.src{white-space:normal;overflow-wrap:anywhere;max-width:100%}.box .tag{flex-wrap:wrap;min-width:0}@media (width<=760px){.wrap p,.wrap li{overflow-wrap:anywhere}}.badge.cbse{background:color-mix(in srgb, var(--beyond) 80%, var(--bg))}