@import "https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;650;700;800&family=Noto+Serif+SC:wght@500;600;700&display=swap";@font-face{font-display:block;font-family:KaTeX_AMS;font-style:normal;font-weight:400;src:url(/_next/static/media/KaTeX_AMS-Regular.BQhdFMY1.woff2)format("woff2"),url(/_next/static/media/KaTeX_AMS-Regular.DMm9YOAa.woff)format("woff"),url(/_next/static/media/KaTeX_AMS-Regular.DRggAlZN.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Caligraphic;font-style:normal;font-weight:700;src:url(/_next/static/media/KaTeX_Caligraphic-Bold.Dq_IR9rO.woff2)format("woff2"),url(/_next/static/media/KaTeX_Caligraphic-Bold.BEiXGLvX.woff)format("woff"),url(/_next/static/media/KaTeX_Caligraphic-Bold.ATXxdsX0.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Caligraphic;font-style:normal;font-weight:400;src:url(/_next/static/media/KaTeX_Caligraphic-Regular.Di6jR-x-.woff2)format("woff2"),url(/_next/static/media/KaTeX_Caligraphic-Regular.CTRA-rTL.woff)format("woff"),url(/_next/static/media/KaTeX_Caligraphic-Regular.wX97UBjC.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Fraktur;font-style:normal;font-weight:700;src:url(/_next/static/media/KaTeX_Fraktur-Bold.CL6g_b3V.woff2)format("woff2"),url(/_next/static/media/KaTeX_Fraktur-Bold.BsDP51OF.woff)format("woff"),url(/_next/static/media/KaTeX_Fraktur-Bold.BdnERNNW.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Fraktur;font-style:normal;font-weight:400;src:url(/_next/static/media/KaTeX_Fraktur-Regular.CTYiF6lA.woff2)format("woff2"),url(/_next/static/media/KaTeX_Fraktur-Regular.Dxdc4cR9.woff)format("woff"),url(/_next/static/media/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(/_next/static/media/KaTeX_Main-Bold.Cx986IdX.woff2)format("woff2"),url(/_next/static/media/KaTeX_Main-Bold.Jm3AIy58.woff)format("woff"),url(/_next/static/media/KaTeX_Main-Bold.waoOVXN0.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:italic;font-weight:700;src:url(/_next/static/media/KaTeX_Main-BoldItalic.DxDJ3AOS.woff2)format("woff2"),url(/_next/static/media/KaTeX_Main-BoldItalic.SpSLRI95.woff)format("woff"),url(/_next/static/media/KaTeX_Main-BoldItalic.DzxPMmG6.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:italic;font-weight:400;src:url(/_next/static/media/KaTeX_Main-Italic.NWA7e6Wa.woff2)format("woff2"),url(/_next/static/media/KaTeX_Main-Italic.BMLOBm91.woff)format("woff"),url(/_next/static/media/KaTeX_Main-Italic.3WenGoN9.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:normal;font-weight:400;src:url(/_next/static/media/KaTeX_Main-Regular.B22Nviop.woff2)format("woff2"),url(/_next/static/media/KaTeX_Main-Regular.Dr94JaBh.woff)format("woff"),url(/_next/static/media/KaTeX_Main-Regular.ypZvNtVU.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Math;font-style:italic;font-weight:700;src:url(/_next/static/media/KaTeX_Math-BoldItalic.CZnvNsCZ.woff2)format("woff2"),url(/_next/static/media/KaTeX_Math-BoldItalic.iY-2wyZ7.woff)format("woff"),url(/_next/static/media/KaTeX_Math-BoldItalic.B3XSjfu4.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Math;font-style:italic;font-weight:400;src:url(/_next/static/media/KaTeX_Math-Italic.t53AETM-.woff2)format("woff2"),url(/_next/static/media/KaTeX_Math-Italic.DA0__PXp.woff)format("woff"),url(/_next/static/media/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(/_next/static/media/KaTeX_SansSerif-Bold.D1sUS0GD.woff2)format("woff2"),url(/_next/static/media/KaTeX_SansSerif-Bold.DbIhKOiC.woff)format("woff"),url(/_next/static/media/KaTeX_SansSerif-Bold.CFMepnvq.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_SansSerif;font-style:italic;font-weight:400;src:url(/_next/static/media/KaTeX_SansSerif-Italic.C3H0VqGB.woff2)format("woff2"),url(/_next/static/media/KaTeX_SansSerif-Italic.DN2j7dab.woff)format("woff"),url(/_next/static/media/KaTeX_SansSerif-Italic.YYjJ1zSn.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_SansSerif;font-style:normal;font-weight:400;src:url(/_next/static/media/KaTeX_SansSerif-Regular.DDBCnlJ7.woff2)format("woff2"),url(/_next/static/media/KaTeX_SansSerif-Regular.CS6fqUqJ.woff)format("woff"),url(/_next/static/media/KaTeX_SansSerif-Regular.BNo7hRIc.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Script;font-style:normal;font-weight:400;src:url(/_next/static/media/KaTeX_Script-Regular.D3wIWfF6.woff2)format("woff2"),url(/_next/static/media/KaTeX_Script-Regular.D5yQViql.woff)format("woff"),url(/_next/static/media/KaTeX_Script-Regular.C5JkGWo-.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size1;font-style:normal;font-weight:400;src:url(/_next/static/media/KaTeX_Size1-Regular.mCD8mA8B.woff2)format("woff2"),url(/_next/static/media/KaTeX_Size1-Regular.C195tn64.woff)format("woff"),url(/_next/static/media/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(/_next/static/media/KaTeX_Size2-Regular.Dy4dx90m.woff2)format("woff2"),url(/_next/static/media/KaTeX_Size2-Regular.oD1tc_U0.woff)format("woff"),url(/_next/static/media/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(/_next/static/media/KaTeX_Size3-Regular.CTq5MqoE.woff)format("woff"),url(/_next/static/media/KaTeX_Size3-Regular.DgpXs0kz.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size4;font-style:normal;font-weight:400;src:url(/_next/static/media/KaTeX_Size4-Regular.Dl5lxZxV.woff2)format("woff2"),url(/_next/static/media/KaTeX_Size4-Regular.BF-4gkZK.woff)format("woff"),url(/_next/static/media/KaTeX_Size4-Regular.DWFBv043.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Typewriter;font-style:normal;font-weight:400;src:url(/_next/static/media/KaTeX_Typewriter-Regular.CO6r4hn1.woff2)format("woff2"),url(/_next/static/media/KaTeX_Typewriter-Regular.C0xS9mPB.woff)format("woff"),url(/_next/static/media/KaTeX_Typewriter-Regular.D3Ib7_Hf.ttf)format("truetype")}.katex{text-indent:0;text-rendering:auto;font:1.21em/1.2 KaTeX_Main,math,Times New Roman,serif;position:relative}.katex *{border-color:currentColor;-ms-high-contrast-adjust:none!important}.katex .katex-version:after{content:"0.19.1"}.katex .katex-mathml{clip-path:inset(50%);border:0;width:1px;height:1px;padding:0;position:absolute;overflow:hidden}.katex .katex-html>.katex-newline{display:block}.katex .katex-base{white-space:nowrap;width:min-content;position:relative}.katex .katex-base,.katex .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 .katex-vbox{flex-direction:column;align-items:baseline;display:inline-flex}.katex .katex-thinbox{flex-direction:row;width:0;max-width:0;display:inline-flex}.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 .katex-hdashline,.katex .katex-hline,.katex .katex-overline .overline-line,.katex .katex-rule,.katex .katex-underline .underline-line,.katex .mfrac .frac-line{min-height:1px}.katex .mspace{display:inline-block}.katex .katex-smash{line-height:0;display:inline}.katex .clap,.katex .llap,.katex .rlap{width:0;position:relative}.katex .clap>.katex-inner,.katex .llap>.katex-inner,.katex .rlap>.katex-inner{position:absolute}.katex .clap>.katex-fix,.katex .llap>.katex-fix,.katex .rlap>.katex-fix{display:inline-block}.katex .llap>.katex-inner{right:0}.katex .clap>.katex-inner,.katex .rlap>.katex-inner{left:0}.katex .clap>.katex-inner>span{margin-left:-50%;margin-right:50%}.katex .katex-rule{border:0 solid;display:inline-block;position:relative}.katex .katex-hline,.katex .katex-overline .overline-line,.katex .katex-underline .underline-line{border-bottom-style:solid;width:100%;display:inline-block}.katex .katex-hdashline{border-bottom-style:dashed;width:100%;display:inline-block}.katex .sqrt>.katex-root{margin-left:.277778em;margin-right:-.555556em}.katex .fontsize-ensurer.reset-size1.size1,.katex .katex-sizing.reset-size1.size1{font-size:1em}.katex .fontsize-ensurer.reset-size1.size2,.katex .katex-sizing.reset-size1.size2{font-size:1.2em}.katex .fontsize-ensurer.reset-size1.size3,.katex .katex-sizing.reset-size1.size3{font-size:1.4em}.katex .fontsize-ensurer.reset-size1.size4,.katex .katex-sizing.reset-size1.size4{font-size:1.6em}.katex .fontsize-ensurer.reset-size1.size5,.katex .katex-sizing.reset-size1.size5{font-size:1.8em}.katex .fontsize-ensurer.reset-size1.size6,.katex .katex-sizing.reset-size1.size6{font-size:2em}.katex .fontsize-ensurer.reset-size1.size7,.katex .katex-sizing.reset-size1.size7{font-size:2.4em}.katex .fontsize-ensurer.reset-size1.size8,.katex .katex-sizing.reset-size1.size8{font-size:2.88em}.katex .fontsize-ensurer.reset-size1.size9,.katex .katex-sizing.reset-size1.size9{font-size:3.456em}.katex .fontsize-ensurer.reset-size1.size10,.katex .katex-sizing.reset-size1.size10{font-size:4.148em}.katex .fontsize-ensurer.reset-size1.size11,.katex .katex-sizing.reset-size1.size11{font-size:4.976em}.katex .fontsize-ensurer.reset-size2.size1,.katex .katex-sizing.reset-size2.size1{font-size:.833333em}.katex .fontsize-ensurer.reset-size2.size2,.katex .katex-sizing.reset-size2.size2{font-size:1em}.katex .fontsize-ensurer.reset-size2.size3,.katex .katex-sizing.reset-size2.size3{font-size:1.16667em}.katex .fontsize-ensurer.reset-size2.size4,.katex .katex-sizing.reset-size2.size4{font-size:1.33333em}.katex .fontsize-ensurer.reset-size2.size5,.katex .katex-sizing.reset-size2.size5{font-size:1.5em}.katex .fontsize-ensurer.reset-size2.size6,.katex .katex-sizing.reset-size2.size6{font-size:1.66667em}.katex .fontsize-ensurer.reset-size2.size7,.katex .katex-sizing.reset-size2.size7{font-size:2em}.katex .fontsize-ensurer.reset-size2.size8,.katex .katex-sizing.reset-size2.size8{font-size:2.4em}.katex .fontsize-ensurer.reset-size2.size9,.katex .katex-sizing.reset-size2.size9{font-size:2.88em}.katex .fontsize-ensurer.reset-size2.size10,.katex .katex-sizing.reset-size2.size10{font-size:3.45667em}.katex .fontsize-ensurer.reset-size2.size11,.katex .katex-sizing.reset-size2.size11{font-size:4.14667em}.katex .fontsize-ensurer.reset-size3.size1,.katex .katex-sizing.reset-size3.size1{font-size:.714286em}.katex .fontsize-ensurer.reset-size3.size2,.katex .katex-sizing.reset-size3.size2{font-size:.857143em}.katex .fontsize-ensurer.reset-size3.size3,.katex .katex-sizing.reset-size3.size3{font-size:1em}.katex .fontsize-ensurer.reset-size3.size4,.katex .katex-sizing.reset-size3.size4{font-size:1.14286em}.katex .fontsize-ensurer.reset-size3.size5,.katex .katex-sizing.reset-size3.size5{font-size:1.28571em}.katex .fontsize-ensurer.reset-size3.size6,.katex .katex-sizing.reset-size3.size6{font-size:1.42857em}.katex .fontsize-ensurer.reset-size3.size7,.katex .katex-sizing.reset-size3.size7{font-size:1.71429em}.katex .fontsize-ensurer.reset-size3.size8,.katex .katex-sizing.reset-size3.size8{font-size:2.05714em}.katex .fontsize-ensurer.reset-size3.size9,.katex .katex-sizing.reset-size3.size9{font-size:2.46857em}.katex .fontsize-ensurer.reset-size3.size10,.katex .katex-sizing.reset-size3.size10{font-size:2.96286em}.katex .fontsize-ensurer.reset-size3.size11,.katex .katex-sizing.reset-size3.size11{font-size:3.55429em}.katex .fontsize-ensurer.reset-size4.size1,.katex .katex-sizing.reset-size4.size1{font-size:.625em}.katex .fontsize-ensurer.reset-size4.size2,.katex .katex-sizing.reset-size4.size2{font-size:.75em}.katex .fontsize-ensurer.reset-size4.size3,.katex .katex-sizing.reset-size4.size3{font-size:.875em}.katex .fontsize-ensurer.reset-size4.size4,.katex .katex-sizing.reset-size4.size4{font-size:1em}.katex .fontsize-ensurer.reset-size4.size5,.katex .katex-sizing.reset-size4.size5{font-size:1.125em}.katex .fontsize-ensurer.reset-size4.size6,.katex .katex-sizing.reset-size4.size6{font-size:1.25em}.katex .fontsize-ensurer.reset-size4.size7,.katex .katex-sizing.reset-size4.size7{font-size:1.5em}.katex .fontsize-ensurer.reset-size4.size8,.katex .katex-sizing.reset-size4.size8{font-size:1.8em}.katex .fontsize-ensurer.reset-size4.size9,.katex .katex-sizing.reset-size4.size9{font-size:2.16em}.katex .fontsize-ensurer.reset-size4.size10,.katex .katex-sizing.reset-size4.size10{font-size:2.5925em}.katex .fontsize-ensurer.reset-size4.size11,.katex .katex-sizing.reset-size4.size11{font-size:3.11em}.katex .fontsize-ensurer.reset-size5.size1,.katex .katex-sizing.reset-size5.size1{font-size:.555556em}.katex .fontsize-ensurer.reset-size5.size2,.katex .katex-sizing.reset-size5.size2{font-size:.666667em}.katex .fontsize-ensurer.reset-size5.size3,.katex .katex-sizing.reset-size5.size3{font-size:.777778em}.katex .fontsize-ensurer.reset-size5.size4,.katex .katex-sizing.reset-size5.size4{font-size:.888889em}.katex .fontsize-ensurer.reset-size5.size5,.katex .katex-sizing.reset-size5.size5{font-size:1em}.katex .fontsize-ensurer.reset-size5.size6,.katex .katex-sizing.reset-size5.size6{font-size:1.11111em}.katex .fontsize-ensurer.reset-size5.size7,.katex .katex-sizing.reset-size5.size7{font-size:1.33333em}.katex .fontsize-ensurer.reset-size5.size8,.katex .katex-sizing.reset-size5.size8{font-size:1.6em}.katex .fontsize-ensurer.reset-size5.size9,.katex .katex-sizing.reset-size5.size9{font-size:1.92em}.katex .fontsize-ensurer.reset-size5.size10,.katex .katex-sizing.reset-size5.size10{font-size:2.30444em}.katex .fontsize-ensurer.reset-size5.size11,.katex .katex-sizing.reset-size5.size11{font-size:2.76444em}.katex .fontsize-ensurer.reset-size6.size1,.katex .katex-sizing.reset-size6.size1{font-size:.5em}.katex .fontsize-ensurer.reset-size6.size2,.katex .katex-sizing.reset-size6.size2{font-size:.6em}.katex .fontsize-ensurer.reset-size6.size3,.katex .katex-sizing.reset-size6.size3{font-size:.7em}.katex .fontsize-ensurer.reset-size6.size4,.katex .katex-sizing.reset-size6.size4{font-size:.8em}.katex .fontsize-ensurer.reset-size6.size5,.katex .katex-sizing.reset-size6.size5{font-size:.9em}.katex .fontsize-ensurer.reset-size6.size6,.katex .katex-sizing.reset-size6.size6{font-size:1em}.katex .fontsize-ensurer.reset-size6.size7,.katex .katex-sizing.reset-size6.size7{font-size:1.2em}.katex .fontsize-ensurer.reset-size6.size8,.katex .katex-sizing.reset-size6.size8{font-size:1.44em}.katex .fontsize-ensurer.reset-size6.size9,.katex .katex-sizing.reset-size6.size9{font-size:1.728em}.katex .fontsize-ensurer.reset-size6.size10,.katex .katex-sizing.reset-size6.size10{font-size:2.074em}.katex .fontsize-ensurer.reset-size6.size11,.katex .katex-sizing.reset-size6.size11{font-size:2.488em}.katex .fontsize-ensurer.reset-size7.size1,.katex .katex-sizing.reset-size7.size1{font-size:.416667em}.katex .fontsize-ensurer.reset-size7.size2,.katex .katex-sizing.reset-size7.size2{font-size:.5em}.katex .fontsize-ensurer.reset-size7.size3,.katex .katex-sizing.reset-size7.size3{font-size:.583333em}.katex .fontsize-ensurer.reset-size7.size4,.katex .katex-sizing.reset-size7.size4{font-size:.666667em}.katex .fontsize-ensurer.reset-size7.size5,.katex .katex-sizing.reset-size7.size5{font-size:.75em}.katex .fontsize-ensurer.reset-size7.size6,.katex .katex-sizing.reset-size7.size6{font-size:.833333em}.katex .fontsize-ensurer.reset-size7.size7,.katex .katex-sizing.reset-size7.size7{font-size:1em}.katex .fontsize-ensurer.reset-size7.size8,.katex .katex-sizing.reset-size7.size8{font-size:1.2em}.katex .fontsize-ensurer.reset-size7.size9,.katex .katex-sizing.reset-size7.size9{font-size:1.44em}.katex .fontsize-ensurer.reset-size7.size10,.katex .katex-sizing.reset-size7.size10{font-size:1.72833em}.katex .fontsize-ensurer.reset-size7.size11,.katex .katex-sizing.reset-size7.size11{font-size:2.07333em}.katex .fontsize-ensurer.reset-size8.size1,.katex .katex-sizing.reset-size8.size1{font-size:.347222em}.katex .fontsize-ensurer.reset-size8.size2,.katex .katex-sizing.reset-size8.size2{font-size:.416667em}.katex .fontsize-ensurer.reset-size8.size3,.katex .katex-sizing.reset-size8.size3{font-size:.486111em}.katex .fontsize-ensurer.reset-size8.size4,.katex .katex-sizing.reset-size8.size4{font-size:.555556em}.katex .fontsize-ensurer.reset-size8.size5,.katex .katex-sizing.reset-size8.size5{font-size:.625em}.katex .fontsize-ensurer.reset-size8.size6,.katex .katex-sizing.reset-size8.size6{font-size:.694444em}.katex .fontsize-ensurer.reset-size8.size7,.katex .katex-sizing.reset-size8.size7{font-size:.833333em}.katex .fontsize-ensurer.reset-size8.size8,.katex .katex-sizing.reset-size8.size8{font-size:1em}.katex .fontsize-ensurer.reset-size8.size9,.katex .katex-sizing.reset-size8.size9{font-size:1.2em}.katex .fontsize-ensurer.reset-size8.size10,.katex .katex-sizing.reset-size8.size10{font-size:1.44028em}.katex .fontsize-ensurer.reset-size8.size11,.katex .katex-sizing.reset-size8.size11{font-size:1.72778em}.katex .fontsize-ensurer.reset-size9.size1,.katex .katex-sizing.reset-size9.size1{font-size:.289352em}.katex .fontsize-ensurer.reset-size9.size2,.katex .katex-sizing.reset-size9.size2{font-size:.347222em}.katex .fontsize-ensurer.reset-size9.size3,.katex .katex-sizing.reset-size9.size3{font-size:.405093em}.katex .fontsize-ensurer.reset-size9.size4,.katex .katex-sizing.reset-size9.size4{font-size:.462963em}.katex .fontsize-ensurer.reset-size9.size5,.katex .katex-sizing.reset-size9.size5{font-size:.520833em}.katex .fontsize-ensurer.reset-size9.size6,.katex .katex-sizing.reset-size9.size6{font-size:.578704em}.katex .fontsize-ensurer.reset-size9.size7,.katex .katex-sizing.reset-size9.size7{font-size:.694444em}.katex .fontsize-ensurer.reset-size9.size8,.katex .katex-sizing.reset-size9.size8{font-size:.833333em}.katex .fontsize-ensurer.reset-size9.size9,.katex .katex-sizing.reset-size9.size9{font-size:1em}.katex .fontsize-ensurer.reset-size9.size10,.katex .katex-sizing.reset-size9.size10{font-size:1.20023em}.katex .fontsize-ensurer.reset-size9.size11,.katex .katex-sizing.reset-size9.size11{font-size:1.43981em}.katex .fontsize-ensurer.reset-size10.size1,.katex .katex-sizing.reset-size10.size1{font-size:.24108em}.katex .fontsize-ensurer.reset-size10.size2,.katex .katex-sizing.reset-size10.size2{font-size:.289296em}.katex .fontsize-ensurer.reset-size10.size3,.katex .katex-sizing.reset-size10.size3{font-size:.337512em}.katex .fontsize-ensurer.reset-size10.size4,.katex .katex-sizing.reset-size10.size4{font-size:.385728em}.katex .fontsize-ensurer.reset-size10.size5,.katex .katex-sizing.reset-size10.size5{font-size:.433944em}.katex .fontsize-ensurer.reset-size10.size6,.katex .katex-sizing.reset-size10.size6{font-size:.48216em}.katex .fontsize-ensurer.reset-size10.size7,.katex .katex-sizing.reset-size10.size7{font-size:.578592em}.katex .fontsize-ensurer.reset-size10.size8,.katex .katex-sizing.reset-size10.size8{font-size:.694311em}.katex .fontsize-ensurer.reset-size10.size9,.katex .katex-sizing.reset-size10.size9{font-size:.833173em}.katex .fontsize-ensurer.reset-size10.size10,.katex .katex-sizing.reset-size10.size10{font-size:1em}.katex .fontsize-ensurer.reset-size10.size11,.katex .katex-sizing.reset-size10.size11{font-size:1.19961em}.katex .fontsize-ensurer.reset-size11.size1,.katex .katex-sizing.reset-size11.size1{font-size:.200965em}.katex .fontsize-ensurer.reset-size11.size2,.katex .katex-sizing.reset-size11.size2{font-size:.241158em}.katex .fontsize-ensurer.reset-size11.size3,.katex .katex-sizing.reset-size11.size3{font-size:.281351em}.katex .fontsize-ensurer.reset-size11.size4,.katex .katex-sizing.reset-size11.size4{font-size:.321543em}.katex .fontsize-ensurer.reset-size11.size5,.katex .katex-sizing.reset-size11.size5{font-size:.361736em}.katex .fontsize-ensurer.reset-size11.size6,.katex .katex-sizing.reset-size11.size6{font-size:.401929em}.katex .fontsize-ensurer.reset-size11.size7,.katex .katex-sizing.reset-size11.size7{font-size:.482315em}.katex .fontsize-ensurer.reset-size11.size8,.katex .katex-sizing.reset-size11.size8{font-size:.578778em}.katex .fontsize-ensurer.reset-size11.size9,.katex .katex-sizing.reset-size11.size9{font-size:.694534em}.katex .fontsize-ensurer.reset-size11.size10,.katex .katex-sizing.reset-size11.size10{font-size:.833601em}.katex .fontsize-ensurer.reset-size11.size11,.katex .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 .katex-accent>.vlist-t,.katex .op-limits>.vlist-t{text-align:center}.katex .katex-accent .accent-body{position:relative}.katex .katex-accent .accent-body:not(.accent-full){width:0}.katex .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 .katex-stretchy{width:100%;display:block;position:relative;overflow:hidden}.katex .katex-stretchy:after,.katex .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 .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 .reflectbox{display:inline-block;transform:scaleX(-1)}.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>.katex-tag{position:absolute;right:0}.katex-display.leqno>.katex>.katex-html>.katex-tag{left:0;right:auto}.katex-display.fleqn>.katex{text-align:left;padding-left:2em}body{counter-reset:katexEqnNo mmlEqnNo}:root{--paper:#f8f7f3;--surface:#fffefa;--ink:#26272c;--muted:#797970;--line:#deddd6;--accent:#d75030;--accent-soft:#f6e8df;--blue:#52699b;--code:#24272f;--serif:"Noto Serif SC","Songti SC",serif;--sans:"Manrope","PingFang SC","Microsoft YaHei",sans-serif}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:100px}body{background:var(--paper);color:var(--ink);font:14px/1.65 var(--sans);-webkit-font-smoothing:antialiased;margin:0}button,input,textarea,select{font:inherit}button{cursor:pointer;color:inherit;background:0 0;border:0;padding:0}button,input,a,textarea{-webkit-tap-highlight-color:transparent}button,a,input,textarea,select{outline-offset:4px}:is(button:focus-visible,a:focus-visible){outline:2px solid var(--accent)}button:disabled{opacity:.42;cursor:default}a{color:inherit;text-decoration:none}h1,h2,h3,h4,p{margin:0}svg{vertical-align:middle;flex-shrink:0}button{transition:background .18s,color .18s,border-color .18s,transform .18s}button:active:not(:disabled){transform:translateY(1px)}::selection{background:#f2c6b1}textarea{resize:vertical}input[type=range]{width:100%;accent-color:var(--accent);cursor:pointer;height:18px;margin:10px 0 0}input[type=checkbox]{accent-color:var(--accent);flex-shrink:0;width:15px;height:15px}button:hover:not(:disabled){color:var(--accent)}.site-header{border-bottom:1px solid var(--line);z-index:40;background:#f8f7f3f7;align-items:center;gap:38px;height:76px;padding:0 42px;display:flex;position:sticky;top:0}.brand{white-space:nowrap;align-items:center;gap:10px;display:flex}.brand-symbol{background:var(--accent);color:#fff8f0;width:31px;height:33px;font-family:var(--serif);border-radius:1px;place-items:center;font-size:18px;font-weight:600;display:grid;transform:rotate(-5deg)}.brand b{font-family:var(--serif);letter-spacing:-1px;font-size:23px;font-weight:700}.brand-en{letter-spacing:1.7px;color:#6c6b67;white-space:normal;border-left:1px solid #cfcfc5;max-width:70px;margin-left:4px;padding-left:13px;font-size:8px;line-height:1.7}.desktop-nav{gap:33px;height:100%;margin:auto;display:flex}.desktop-nav button{color:#6c6b67;font-size:12px;font-weight:600;position:relative}.desktop-nav button.selected{color:var(--ink)}.desktop-nav button.selected:after{background:var(--accent);content:"";height:3px;position:absolute;bottom:-1px;left:0;right:0}.header-progress{color:#6c6b67;align-items:center;gap:12px;font-size:10px;display:flex}.header-progress>div{background:#e4e4da;width:70px;height:3px}.header-progress i{background:var(--accent);height:100%;display:block}.mobile-menu,.mobile-nav{display:none}.icon-button{color:#6d6c68;border-radius:4px;justify-content:center;align-items:center;width:32px;height:32px;display:inline-flex}.icon-button:hover{background:#eeeee6}.primary,.secondary{white-space:nowrap;border-radius:4px;justify-content:center;align-items:center;gap:10px;min-height:39px;padding:10px 16px;font-size:12px;font-weight:600;line-height:1.4;display:inline-flex}.primary{background:var(--accent);color:#fff8f2;border:1px solid var(--accent)}.primary:hover:not(:disabled){color:#fff8f2;background:#bf4529;border-color:#bf4529}.secondary{color:#63625e;background:#fbfaf6;border:1px solid #d3d2ce}.secondary:hover:not(:disabled){color:#383733;background:#f0eee6;border-color:#b6b5b1}.primary.large{gap:25px;padding:15px 22px;font-size:13px}.text-button{color:var(--accent);align-items:center;gap:9px;font-size:11px;font-weight:600;line-height:1.5;display:inline-flex}.library-shell{max-width:1400px;margin:0 auto;padding:58px 62px 0}.library-heading{justify-content:space-between;align-items:flex-end;gap:30px;margin-bottom:39px;display:flex}.edition-label{letter-spacing:1.4px;color:#6e6d69;align-items:center;gap:8px;margin-bottom:18px;font-size:10px;font-weight:600;display:flex}.edition-label:before{content:"";background:var(--accent);width:6px;height:6px}.library-heading h1{font-family:var(--serif);letter-spacing:-2px;font-size:clamp(36px,3.6vw,53px);font-weight:600;line-height:1.45}.library-heading h1 span{color:var(--accent)}.library-heading-right{min-width:280px;padding-bottom:8px}.library-heading-right>p{color:#6c6b67;margin-bottom:20px;font-size:12px}.search-box{color:#7e7d79;background:#f1f0e9;border:1px solid #e1e0d6;border-radius:4px;align-items:center;gap:10px;padding:11px 13px;display:flex}.search-box input{color:#575652;background:0 0;border:0;outline:none;width:100%;min-width:0;font-size:11px}.search-box input::placeholder{color:#7a7975}.featured-class{background:#f1efe6;border:1px solid #dcdcd0;border-radius:8px;grid-template-columns:.92fr 1.08fr;min-height:470px;margin-bottom:50px;display:grid;overflow:hidden}.featured-copy{border-right:1px solid #ddddd1;flex-direction:column;align-items:flex-start;padding:33px 34px;display:flex}.course-label{color:#706f6b;letter-spacing:.5px;justify-content:space-between;align-items:center;width:100%;font-size:9px;display:flex}.course-label>span{color:#966b4f;background:#eae1d1;border-radius:2px;padding:4px 7px;font-size:9px}.course-label b{font-size:10px;font-weight:500}.featured-copy h2{font-size:30px;font-family:var(--serif);letter-spacing:-.8px;max-width:400px;margin:25px 0 19px;font-weight:600;line-height:1.7}.featured-copy>p{color:#6c6b67;max-width:355px;font-size:13px;line-height:1.95}.feature-skills{color:#73726e;align-items:center;gap:10px;margin:23px 0 30px;font-size:10px;display:flex}.feature-skills i{background:#bebdb9;border-radius:50%;width:3px;height:3px}.featured-copy>small{color:#7a7975;margin-top:24px;font-size:9px;display:block}.featured-copy>.primary{margin-top:auto}.featured-demo{background:#faf9f4;justify-content:center;align-items:center;min-width:0;padding:25px 27px;display:flex}.featured-demo .demo-surface{background:0 0;border:0;width:100%;padding:0}.featured-demo .demo-title{border-bottom:0;padding-bottom:8px}.featured-demo .demo-caption{margin-top:15px;font-size:9px}.featured-demo .plot,.featured-demo .fit-graphic{max-height:230px}.featured-demo .fit-graphic svg{height:230px}.featured-demo .demo-title>span{display:none}.featured-demo .readouts{margin:14px 0}.featured-demo .readouts b{font-size:18px}.featured-demo .demo-equation{font-size:12px}.featured-demo .demo-slider{font-size:10px}.featured-demo .primary,.featured-demo .secondary{min-height:34px;padding:8px 13px;font-size:10px}.featured-demo .demo-actions{margin-top:15px}.featured-demo .demo-actions>span{font-size:9px}.subheading{justify-content:space-between;align-items:center;gap:20px;margin-bottom:19px;display:flex}.subheading h2{letter-spacing:-.5px;font-size:20px;font-weight:650}.subheading>span{color:#73726e;font-size:10px}.curriculum-table{border-top:1px solid #c7c6c2}.stage-row{border-bottom:1px solid #dcdbd7}.stage-row-header{text-align:left;align-items:center;gap:25px;width:100%;padding:26px 8px;display:flex}.stage-n{font-family:var(--serif);color:var(--stage-color);min-width:45px;font-size:28px;line-height:1}.stage-row-header>div:nth-child(2){flex:1}.stage-row-header h3{font-size:17px;font-weight:600}.stage-row-header p{color:#6e6d69;margin-top:6px;font-size:11px}.stage-course-count{align-items:center;gap:5px;font-size:13px;font-weight:600;display:flex}.stage-course-count>span{color:#858480;font-size:10px;font-weight:400}.stage-row-header>svg{color:#83827e;margin-left:14px;transition:transform .2s}.stage-row.expanded .stage-row-header>svg{transform:rotate(180deg)}.stage-lessons{padding:0 0 15px 78px}.stage-lessons>button{text-align:left;border-top:1px solid #e3e2de;align-items:center;gap:15px;width:100%;padding:16px 12px;display:flex}.stage-lessons>button:hover{background:#efeeea}.stage-lessons>button>span{color:#787773;border:1px solid #d5d4d0;border-radius:50%;flex-shrink:0;place-items:center;width:23px;height:23px;font-size:9px;display:grid}.stage-lessons>button>span.course-check{color:#6f6e6a;background:#e2e1dd}.stage-lessons>button>div{flex:1}.stage-lessons h4{font-size:13px;font-weight:550}.stage-lessons p{color:#787773;margin-top:5px;font-size:10px;line-height:1.8}.stage-lessons>button>svg{color:#858480}.site-footer{color:#83827e;border-top:1px solid #dcdbd7;justify-content:space-between;align-items:center;margin-top:48px;padding:22px 0 28px;font-size:9px;display:flex}.site-footer>span:first-child{color:#6c6b67;letter-spacing:1.5px;font-size:9px}.site-footer button{align-items:center;gap:6px;font-size:9px;display:flex}.search-list{min-height:400px;margin:40px 0}.search-list>button{text-align:left;border-top:1px solid var(--line);align-items:center;gap:25px;width:100%;padding:22px 0;display:flex}.search-list>button>span{color:#7e7d79;width:80px;font-size:10px}.search-list>button>b{flex:1;font-size:15px;font-weight:550}.search-list>button>svg{color:#7c7b77}.search-list>p{color:#767571;padding:40px 0}.collection-heading{margin-bottom:40px}.collection-heading>span{color:#ba6041;margin-bottom:14px;font-size:11px;font-weight:600;display:block}.collection-heading h1{font-family:var(--serif);letter-spacing:-1px;font-size:37px;font-weight:600;line-height:1.6}.collection-heading>p{color:#71706c;margin-top:17px;font-size:12px}.lab-workspace{grid-template-columns:255px minmax(0,1fr);gap:40px;padding-bottom:50px;display:grid}.lab-index{border-top:1px solid var(--line)}.lab-index>.search-box{margin:16px 0}.lab-index>button{text-align:left;border-bottom:1px solid #e5e4e0;align-items:center;gap:12px;width:100%;padding:14px 10px;display:flex}.lab-index>button>span{color:#82817d;font-size:9px}.lab-index>button>div{flex:1}.lab-index b{font-size:11px;font-weight:550;display:block}.lab-index small{color:#82817d;margin-top:3px;font-size:9px;display:block}.lab-index svg{color:#8a8985}.lab-index>button.selected{color:#aa5737;background:#eee9de;border-radius:4px}.lab-current{align-self:start;min-width:0;position:sticky;top:100px}.lab-current>.text-button{margin-top:20px}.filter-tabs{border-bottom:1px solid var(--line);flex-wrap:wrap;gap:28px;margin-bottom:7px;display:flex}.filter-tabs>button{color:#7a7975;padding-bottom:14px;font-size:11px;position:relative}.filter-tabs>button.selected{color:var(--accent)}.filter-tabs>button.selected:after{content:"";background:var(--accent);height:2px;position:absolute;bottom:-1px;left:0;right:0}.paper-entry{border-bottom:1px solid var(--line);grid-template-columns:62px minmax(0,1fr) 30px;gap:25px;padding:29px 0;display:grid}.paper-year{font-size:22px;font-family:var(--serif);color:#7d7c78}.paper-meta{color:#7c7b77;align-items:center;gap:13px;font-size:9px;display:flex}.paper-meta>span{color:#6f6e6a;background:#eae9e5;border-radius:2px;padding:2px 7px}.paper-entry h2{max-width:900px;margin:10px 0 5px;font-family:Georgia,serif;font-size:23px;font-weight:400;line-height:1.5}.paper-entry small{color:#81807c;font-size:10px}.paper-entry p{color:#6c6b67;margin-top:13px;font-size:12px;line-height:1.9}.paper-entry summary{cursor:pointer;color:#757470;align-items:center;gap:7px;width:max-content;margin-top:15px;font-size:10px;list-style:none;display:flex}.paper-entry summary::-webkit-details-marker{display:none}.paper-entry details[open]{background:#efeeea;margin-top:13px;padding:12px 15px}.paper-entry details[open] summary{margin:0}.paper-entry details[open] summary>svg{transform:rotate(180deg)}.paper-actions{align-items:center;gap:24px;margin-top:20px;display:flex}.paper-actions button,.paper-actions a{color:#a15e42;align-items:center;gap:7px;font-size:10px;display:flex}.paper-actions a{color:#72716d}.saved{color:var(--accent)}.fine-print{color:#7c7b77;padding:26px 0 40px;font-size:10px;line-height:1.9}.learning-summary{border-top:1px solid var(--line);border-bottom:1px solid var(--line);align-items:center;gap:45px;margin-bottom:28px;padding:27px 0;display:flex}.learning-summary>div:not(.backup-actions){flex-direction:column;gap:5px;display:flex}.learning-summary b{font-size:33px;font-weight:500;line-height:1.2}.learning-summary b small{color:#83827e;margin-left:7px;font-size:13px;font-weight:400}.learning-summary span{color:#767571;font-size:10px}.backup-actions{align-items:center;gap:10px;margin-left:auto;display:flex}.backup-actions>.secondary{font-size:10px}.backup-actions label{cursor:pointer}.backup-actions input{display:none}.note-grid{grid-template-columns:1fr 1fr;gap:23px;display:grid}.note-entry{border:1px solid var(--line);background:#fbfaf6;border-radius:5px;padding:20px}.note-entry>button{text-align:left;color:#72716d;justify-content:space-between;align-items:center;gap:10px;width:100%;margin-bottom:14px;font-size:12px;display:flex}.note-entry textarea{color:#676662;background:#f2f1ed;border:1px solid #dfdeda;border-radius:4px;width:100%;min-height:160px;padding:15px;font-size:12px;line-height:1.9}.empty-state{text-align:center;color:#807f7b;flex-direction:column;align-items:center;padding:70px 20px;display:flex}.empty-state h3{color:#6c6b67;margin-top:23px;font-size:19px;font-weight:500}.empty-state p{margin-top:10px;font-size:12px}.empty-state .primary,.empty-state .secondary{margin-top:25px}.reset-row{border-top:1px solid var(--line);justify-content:space-between;align-items:center;gap:25px;margin-top:40px;padding-top:25px;display:flex}.reset-row h3{font-size:14px;font-weight:600}.reset-row p{color:#7c7b77;margin-top:9px;font-size:10px;line-height:1.9}.reset-row .secondary{font-size:10px}.reset-actions{flex-wrap:wrap;align-items:center;gap:9px;display:flex}.reset-actions>span{color:#a87c59;font-size:10px}.danger{color:#b3603a;background:#f9eee5;border:1px solid #d7b49e;border-radius:4px;padding:9px 13px;font-size:11px}.toast{z-index:100;color:#efeeea;background:#32312d;border:1px solid #4d4c48;border-radius:5px;max-width:calc(100% - 30px);padding:14px 22px;font-size:12px;position:fixed;bottom:25px;left:50%;transform:translate(-50%);box-shadow:0 8px 28px #242a1d20}.storage-warning{color:#9e773b;background:#f4e5ce;padding:12px 25px;font-size:12px}.class-header-title{align-items:center;gap:12px;min-width:0;margin-left:20px;font-size:11px;display:flex}.class-header-title>span{color:#71706c;white-space:nowrap}.class-header-title>b{white-space:nowrap;text-overflow:ellipsis;font-weight:500;overflow:hidden}.class-header-title>svg{color:#888783}.class-header-actions{white-space:nowrap;align-items:center;gap:20px;margin-left:auto;display:flex}.class-header-actions>span{color:#666561;font-size:12px}.class-header-actions small{color:#82817d;font-size:10px}.class-header-actions .secondary{min-height:34px;padding:8px 12px;font-size:10px}.classroom{min-height:calc(100vh - 76px);display:flex}.course-sidebar{border-right:1px solid var(--line);scrollbar-width:thin;scrollbar-color:#d3d2ce transparent;background:#f0f0e8;flex-direction:column;flex-shrink:0;width:220px;padding:28px 18px;display:flex;position:fixed;top:76px;bottom:0;overflow-y:auto}.course-sidebar-top{color:#757470;border-bottom:1px solid #dad9d5;justify-content:space-between;align-items:center;margin-bottom:13px;padding:0 8px 22px;font-size:10px;display:flex}.course-sidebar-top>b{color:#807f7b;font-weight:500}.sidebar-stage>button{text-align:left;color:#6c6b67;align-items:center;gap:10px;width:100%;padding:15px 8px;font-size:11px;font-weight:550;display:flex}.sidebar-stage>button>span{color:#858480;font-size:9px;font-weight:400}.sidebar-stage>button>svg{color:#878682;margin-left:auto}.sidebar-stage>div{padding:0 0 9px}.sidebar-stage>div>button{text-align:left;color:#757470;border-radius:3px;align-items:center;gap:9px;width:100%;padding:10px 10px 10px 22px;font-size:10px;line-height:1.8;display:flex}.sidebar-stage>div>button>i{background:#bab9b5;border-radius:50%;flex-shrink:0;width:4px;height:4px;margin:0 4px}.sidebar-stage>div>button.active-lesson{color:#9b5434;background:#e6ddcd;font-weight:550}.sidebar-stage>div>button.active-lesson>i{background:var(--accent)}.sidebar-progress{margin-top:auto;padding:30px 8px 0}.sidebar-progress>div{background:#dbdad6;height:3px}.sidebar-progress i{background:#ae8b62;height:100%;display:block}.sidebar-progress>span{color:#81807c;margin-top:11px;font-size:9px;display:block}.classroom-main{flex:1;min-width:0;max-width:1600px;margin-left:220px;padding:39px 40px 45px}.lesson-kicker{color:#767571;letter-spacing:.4px;align-items:center;gap:8px;font-size:9px;display:flex}.lesson-kicker>span{border-radius:50%;width:6px;height:6px}.lesson-kicker>b{color:#6c6b67;background:#e8e7e3;border-radius:3px;align-items:center;gap:3px;margin-left:7px;padding:2px 6px;font-size:8px;font-weight:500;display:flex}.lesson-heading h1{letter-spacing:-.8px;margin-top:12px;font-size:28px;font-weight:600;line-height:1.5}.lesson-heading p{color:#71706c;margin-top:11px;font-size:12px;line-height:1.85}.lesson-stepper{border-bottom:1px solid var(--line);justify-content:space-between;gap:12px;margin:27px 0 31px;display:flex;overflow-x:auto}.lesson-stepper>button{color:#807f7b;flex-shrink:0;align-items:center;gap:7px;padding:0 2px 16px;display:flex;position:relative}.lesson-stepper>button>span{border:1px solid #d5d4d0;border-radius:50%;place-items:center;width:19px;height:19px;font-size:9px;display:grid}.lesson-stepper>button>b{font-size:10px;font-weight:500}.lesson-stepper>button.current{color:#b65b38}.lesson-stepper>button.current>span{border-color:var(--accent);background:var(--accent);color:#fff8ed}.lesson-stepper>button.current:after{content:"";background:var(--accent);height:2px;position:absolute;bottom:0;left:0;right:0}.lesson-stepper>button.passed{color:#6c6b67}.lesson-stepper>button.passed>span{background:#e4e3df;border-color:#d4d3cf}.lesson-workbench{grid-template-columns:minmax(0,1fr) minmax(320px,.95fr);align-items:start;gap:35px;display:grid}.lesson-content{min-width:0;animation:.25s ease-out enter}.content-section-label{color:#a16b4b;margin-bottom:15px;font-size:10px;font-weight:550}.lesson-content h2{font-family:var(--serif);letter-spacing:-.6px;margin-bottom:22px;font-size:26px;font-weight:600;line-height:1.7}.lesson-content>p{color:#72716d;margin-bottom:23px;font-size:13px;line-height:2}.story-question{max-width:650px}.story-paragraphs{margin-top:28px}.story-paragraph{gap:14px;margin-bottom:24px;animation:.4s ease-out enter;display:flex}.story-paragraph>span{color:#bdbcb8;min-width:19px;font-family:Georgia,serif;font-size:15px;line-height:2}.story-paragraph>p{color:#605f5b;letter-spacing:.1px;font-size:14px;line-height:2.1}.story-next{color:#b96940;border-bottom:1px solid #d8bda5;align-items:center;gap:12px;margin:29px 0;padding:0 0 6px;font-size:12px;display:flex}.why-box{background:#f0ede1;border-radius:4px;margin:28px 0;padding:22px;animation:.4s ease-out enter}.why-box h3{color:#86694b;font-size:13px;font-weight:600}.why-box p{color:#8a7d66;margin-top:12px;font-size:12px;line-height:2}.lesson-step-actions{border-top:1px solid var(--line);justify-content:space-between;align-items:center;gap:15px;margin-top:35px;padding-top:23px;display:flex}.lesson-step-actions>span{color:#878682;font-size:9px}.lesson-step-actions .primary,.lesson-step-actions .secondary{gap:7px;min-height:36px;padding:10px 13px;font-size:10px}.experiment-aside{min-width:0;position:sticky;top:99px}.aside-experiment-link{margin-top:17px;font-size:10px}.lesson-relations{border-top:1px solid var(--line);flex-wrap:wrap;align-items:center;gap:8px;margin-top:27px;padding-top:19px;display:flex}.lesson-relations>span{color:#858480;width:100%;margin-bottom:3px;font-size:9px}.lesson-relations>button{color:#706f6b;background:#eeede9;border:1px solid #deddd9;border-radius:3px;align-items:center;gap:7px;padding:5px 8px;font-size:9px;display:flex}.source-paper{border-top:1px solid var(--line);margin-top:21px;padding-top:18px}.source-paper>span{color:#83827e;font-size:9px}.source-paper>a{color:#8c7458;align-items:center;gap:10px;margin-top:7px;display:flex}.source-paper b{font-family:Georgia,serif;font-size:16px;font-weight:400}.source-paper>p{color:#7a7975;margin-top:10px;font-size:10px;line-height:1.9}.focus-mode .course-sidebar{display:none}.focus-mode .classroom-main{max-width:1400px;margin:0 auto;padding-left:65px;padding-right:65px}.lead-paragraph{color:#686763!important;font-size:16px!important;line-height:2.1!important}.analogy-boundary{background:#edece8;border:1px dashed #d7d6d2;border-radius:4px;margin:22px 0 30px;padding:17px 20px}.analogy-boundary>span{color:#858480;font-size:9px}.analogy-boundary p{color:#706f6b;margin-top:7px;font-size:11px;line-height:1.95}.concept-list>section{border-top:1px solid var(--line);padding:21px 0}.concept-list>section>span{color:#969591;margin-right:8px;font-family:Georgia,serif;font-size:16px}.concept-list h3{font-size:15px;font-weight:600;display:inline}.concept-list p{color:#6c6b67;margin-top:14px;font-size:13px;line-height:2.05}.causal-bridge{color:#757470;border-top:1px solid #c8c7c3;gap:12px;padding:21px 0;display:flex}.causal-bridge b{color:#72716d;font-size:11px;font-weight:550}.causal-bridge p{margin-top:9px;font-size:12px;line-height:1.95}.derivation-intro{color:#757470!important;font-size:12px!important}.derivation-list{position:relative}.derivation-step{border-top:1px solid var(--line);padding:22px 0;animation:.35s ease-out enter}.derivation-step>div:first-child{align-items:center;gap:12px;display:flex}.derivation-step>div:first-child>span{color:#959490;font-family:Georgia,serif;font-size:20px}.derivation-step h3{font-size:14px;font-weight:600}.derivation-step>p{color:#6c6b67;margin-top:16px;font-size:12px;line-height:1.95}.math-block{color:#514e3c;background:#f0efe5;border:1px solid #deddd9;border-radius:3px;margin-top:17px;padding:16px 15px;font-size:15px;overflow-x:auto}.math-block .katex-display{text-align:left;margin:0}.math-block .katex-display>.katex{text-align:left}.math-block .katex{font-size:1.08em}.derive-controls{flex-wrap:wrap;align-items:center;gap:18px;margin:16px 0 25px;display:flex}.derive-controls>.primary{font-size:11px}.derive-controls>.text-button{font-size:10px}.derive-controls>small{color:#8a8985;margin-left:auto;font-size:10px}.derivation-done{color:#706f6b;align-items:center;gap:7px;font-size:11px;display:flex}.pitfall{border-top:1px dashed #d3d2ce;margin-top:25px;padding:20px 0}.pitfall b{color:#a17d56;font-size:10px;font-weight:550}.pitfall p{color:#73726e;margin-top:8px;font-size:11px;line-height:1.95}.experiment-tasks{gap:14px;margin:25px 0;display:grid}.experiment-tasks>label{cursor:pointer;background:#fcfbf7;border:1px solid #dddcd8;border-radius:4px;align-items:flex-start;gap:12px;padding:17px 15px;display:flex}.experiment-tasks>label>input{margin-top:4px}.experiment-tasks>label>span{color:#6c6b67;font-size:12px;line-height:1.9}.experiment-tasks>label b{color:#b09b78;margin-bottom:4px;font-size:9px;font-weight:500;display:block}.observe-box{margin-top:32px}.observe-box h3{font-size:15px;font-weight:600}.observe-box>p{color:#7d7c78;margin:10px 0 16px;font-size:11px;line-height:1.9}.observe-box textarea,.lesson-note textarea{color:#686763;background:#fcfbf7;border:1px solid #d9d8d4;border-radius:4px;width:100%;min-height:145px;padding:17px;font-size:12px;line-height:1.9}.observe-box textarea::placeholder,.lesson-note textarea::placeholder{color:#888783}.step-4{grid-template-columns:minmax(0,1.25fr) minmax(280px,.75fr)}.step-4 .experiment-aside{position:static}.code-runner{background:var(--code);color:#e4e3df;border:1px solid #323943;border-radius:6px;margin:25px 0;overflow:hidden}.code-toolbar{color:#c4c3bf;border-bottom:1px solid #3a4149;justify-content:space-between;align-items:center;gap:10px;padding:12px 15px;font-size:10px;display:flex}.code-toolbar>span{align-items:center;gap:7px;display:flex}.code-toolbar>span>i{background:#cfa768;border-radius:50%;width:6px;height:6px}.code-toolbar small{color:#706f6b;margin-left:8px;font-size:8px}.code-toolbar>div{color:#757470;gap:12px;display:flex}.code-toolbar button:hover{color:#d4d3cf}.code-editor{min-height:300px;max-height:510px;padding:16px 0 10px;display:flex;overflow:auto}.line-numbers{text-align:right;color:#6a6965;-webkit-user-select:none;user-select:none;flex-direction:column;gap:0;min-width:39px;padding:0 12px 0 14px;font:10px/23px SFMono-Regular,Consolas,monospace;display:flex}.line-numbers>span{height:23px}.code-editor textarea{color:#d8d7d3;tab-size:2;resize:vertical;white-space:pre;background:0 0;border:0;outline:0;width:100%;min-height:320px;max-height:800px;padding:0 15px 10px 0;font:11px/23px SFMono-Regular,Consolas,monospace;overflow:auto}.code-bottom{border-top:1px solid #3a424a;justify-content:space-between;align-items:center;gap:12px;padding:12px 15px;display:flex}.code-bottom>span{color:#7a7975;font-size:9px}.code-bottom>button{color:#46412f;background:#e6cf9c;border-radius:3px;align-items:center;gap:7px;padding:9px 12px;font-size:10px;font-weight:600;display:flex}.code-output{background:#1c2428;border-top:1px solid #3a424a;min-height:100px;padding:16px}.code-output>span{color:#6c6b67;letter-spacing:.5px;margin-bottom:12px;font-size:9px;display:block}.code-output pre{white-space:pre-wrap;overflow-wrap:anywhere;color:#c5c4c0;margin:0;font:11px/1.9 SFMono-Regular,Consolas,monospace}.code-output>p{color:#71706c;font-size:10px}.code-output.has-error pre{color:#e9ac86}.expected-output{background:#eae9e5;border-radius:4px;padding:16px 19px}.expected-output>b{color:#706f6b;font-size:10px}.expected-output>p{color:#6c6b67;margin-top:7px;font-size:11px;line-height:1.9}.code-walkthrough>section{border-bottom:1px solid var(--line);gap:15px;padding:20px 0;display:flex}.code-walkthrough>section>span{color:#91908c;font-family:Georgia,serif;font-size:18px}.code-walkthrough h3{font-size:13px;font-weight:600}.code-walkthrough p{color:#757470;margin-top:9px;font-size:12px;line-height:1.95}.code-challenge{background:#f2e8da;border:1px solid #e6d6bc;border-radius:4px;margin-top:25px;padding:21px}.code-challenge>span{color:#b68c57;font-size:9px}.code-challenge h3{color:#967549;margin-top:9px;font-size:13px;font-weight:500;line-height:1.9}.quiz-options{gap:12px;margin:25px 0;display:grid}.quiz-options>button{text-align:left;background:#fcfdf6;border:1px solid #dbdad6;border-radius:4px;align-items:center;gap:12px;padding:16px;font-size:12px;line-height:1.8;display:flex}.quiz-options>button>span{color:#858480;border:1px solid #dcdbd7;border-radius:3px;flex-shrink:0;place-items:center;width:25px;height:25px;font-size:10px;display:grid}.quiz-options b{flex:1;font-weight:500}.quiz-options>button.correct{color:#63625e;background:#e8e7e3;border-color:#8a8985}.quiz-options>button.incorrect{color:#a86d44;background:#f7ebe2;border-color:#d9bda2}.quiz-feedback{color:#6c6b67;background:#eeede9;border-radius:4px;padding:17px 20px;font-size:12px;line-height:1.95}.quiz-feedback.incorrect{color:#a78560;background:#f8eee4}.practice-check{border-top:1px solid var(--line);margin-top:30px;padding-top:23px}.practice-check h3{font-size:14px;font-weight:600}.practice-check p{color:#73726e;margin:12px 0 18px;font-size:12px;line-height:1.95}.practice-check label{color:#73726e;cursor:pointer;align-items:center;gap:9px;font-size:11px;display:flex}.lesson-note{margin-top:28px}.lesson-note h3{justify-content:space-between;align-items:center;margin-bottom:15px;font-size:14px;font-weight:600;display:flex}.lesson-note h3>span{color:#858480;font-size:9px;font-weight:400}.complete-button{margin-top:20px}.lesson-conclusion{border-top:1px solid #d4d3cf;margin-top:32px;padding:24px 0}.lesson-conclusion>span{color:#aa9976;font-size:9px}.lesson-conclusion>p{font-size:15px;font-family:var(--serif);color:#72716d;margin-top:12px;line-height:1.95}.demo-surface{background:#fffefa;border:1px solid #dad9d5;border-radius:7px;min-width:0;padding:23px;overflow:hidden}.demo-title{border-bottom:1px solid #e6e5e1;align-items:center;gap:9px;margin-bottom:13px;padding-bottom:18px;display:flex}.demo-title>span{letter-spacing:.8px;color:#8b8a86;white-space:nowrap;font-size:8px}.demo-title>b{color:#6a6965;flex:1;font-size:11px;font-weight:550}.demo-title>i{background:#dd7452;border-radius:50%;width:5px;height:5px}.demo-slider{color:#6c6b67;min-width:0;margin:16px 0 8px;font-size:11px;display:block}.demo-slider>span{justify-content:space-between;align-items:center;gap:10px;display:flex}.demo-slider b{font-variant-numeric:tabular-nums;color:#a56640;font-size:11px;font-weight:600}.dual-sliders{grid-template-columns:1fr 1fr;gap:20px;display:grid}.readouts{border-top:1px solid #e2e1dd;justify-content:space-between;align-items:flex-start;gap:16px;margin-top:19px;padding:17px 0;display:flex}.readouts>div{min-width:0}.readouts small{color:#81807c;font-size:9px;line-height:1.7;display:block}.readouts b{color:#6a6965;font-variant-numeric:tabular-nums;overflow-wrap:anywhere;margin-top:8px;font-size:21px;font-weight:500;line-height:1.3;display:block}.demo-actions{flex-wrap:wrap;align-items:center;gap:10px;margin-top:17px;display:flex}.demo-actions>.primary,.demo-actions>.secondary{gap:7px;min-height:34px;padding:9px 12px;font-size:10px}.demo-actions>span{color:#868581;margin-left:auto;font-size:8px}.demo-caption{color:#7a7975;margin-top:19px;font-size:9px;line-height:1.9}.plot{width:100%;margin:13px 0 17px;display:block;overflow:visible}.plot text,.fit-graphic text{font-family:var(--sans);fill:#757470;font-size:10px}.fit-graphic{margin:8px 0 9px}.fit-graphic svg{width:100%;height:auto;display:block}.fit-line,.moving-point{transition:all .16s linear}.demo-equation{text-align:center;color:#8d7c60;background:#f4f1e8;border-radius:4px;padding:12px 8px;font-family:Georgia,Songti SC,serif;font-size:15px}.demo-equation>b{color:#b65b37;font-weight:500}.vector-equation{justify-content:center;align-items:center;gap:14px;padding:30px 0;display:flex}.vector-equation>div{text-align:center}.vector-equation small{color:#7e7d79;margin-bottom:8px;font-size:9px;display:block}.vector-equation b{color:#6e6d69;font-family:Georgia,serif;font-size:22px;font-weight:400}.vector-equation>span{color:#91908c;margin-top:15px;font-size:24px}.vector-equation>strong{color:#b9653c;margin-top:17px;font:33px Georgia,serif}.contribution-bars{gap:15px;margin:15px 0 25px;display:grid}.contribution-bars>div{color:#73726e;align-items:center;gap:10px;font-size:10px;display:flex}.contribution-bars>div>span{width:32px}.contribution-bars>div>div{background:#eeede9;border-radius:2px;flex:1;height:20px;overflow:hidden}.contribution-bars i{border-radius:2px;height:100%;transition:width .2s;display:block}.contribution-bars b{text-align:right;color:#6c6b67;width:35px;font-size:13px;font-weight:500}.probability-visual{justify-content:center;align-items:center;gap:35px;padding:30px 0 25px;display:flex}.probability-dial{border-radius:50%;width:130px;height:130px;padding:14px;transition:background .2s}.probability-dial>span{background:#fffefa;border-radius:50%;flex-direction:column;justify-content:center;align-items:center;width:100%;height:100%;display:flex}.probability-dial b{color:#a86a41;font-size:25px;font-weight:500}.probability-dial small{color:#898884;margin-top:4px;font-size:8px}.probability-visual>div:last-child{flex-direction:column;gap:8px;display:flex}.probability-visual>div:last-child>span{color:#757470;font-size:10px}.probability-visual>div:last-child>strong{color:#71706c;font-size:36px;font-weight:500}.probability-visual>div:last-child>small{color:#82817d;font-size:9px}.draw-history{flex-wrap:wrap;gap:5px;margin-top:18px;display:flex}.draw-history>i{color:#7a7975;background:#e0dfdb;border-radius:3px;place-items:center;width:24px;height:24px;font-size:9px;font-style:normal;animation:.2s enter;display:grid}.draw-history>i.cat{color:#b7754a;background:#f0d9c8}.check-label{color:#757470;cursor:pointer;align-items:center;gap:8px;margin-top:12px;font-size:10px;line-height:1.9;display:flex}.neuron-diagram{justify-content:space-between;align-items:center;gap:0;padding:40px 0 32px;display:flex}.node-input,.node-output{flex-direction:column;align-items:center;gap:10px;min-width:55px;display:flex}.node-input small,.node-output small{color:#7a7975;font-size:9px}.node-input strong,.node-output strong{color:#6c6b67;font-size:20px;font-weight:500}.neuron-node{background:#edece8;border:2px solid #d4d3cf;border-radius:50%;flex-direction:column;flex-shrink:0;justify-content:center;align-items:center;gap:6px;width:98px;height:98px;transition:background .2s,border-color .2s;display:flex}.neuron-node.firing{background:#f4ddc8;border-color:#d69361}.neuron-node small{color:#b69a76;font-size:10px}.neuron-node strong{color:#a3774c;font-size:24px;font-weight:500}.signal-wire{background:#c0bfbb;flex:1;height:1px;margin:0 6px;position:relative}.signal-wire>span{white-space:nowrap;color:#83827e;font-size:9px;position:absolute;top:-28px;left:50%;transform:translate(-50%)}.signal-wire>i{background:#cd9564;border-radius:50%;width:5px;height:5px;position:absolute;top:-2px;left:50%}.backprop-flow{grid-template-columns:1fr 1fr;gap:21px 24px;padding:23px 0;display:grid}.flow-node{opacity:.4;border:1px solid #deddd9;border-radius:4px;padding:18px 13px;transition:opacity .3s,background .3s;position:relative}.flow-node.lit{opacity:1;background:#eeede9}.flow-node.backward{background:#f3dfcc;border-color:#d9ac84}.flow-node>small{color:#83827e;font-size:9px;display:block}.flow-node>b{color:#6c6b67;margin-top:10px;font-size:12px;font-weight:500;display:block}.flow-node>svg{color:#969591;position:absolute;top:50%;right:-21px}.flow-node:nth-child(2)>svg{top:auto;bottom:-21px;right:40%;transform:rotate(90deg)}.gradient-return{color:#b98858;border-top:1px dashed #dddcc9;border-bottom:1px dashed #dddcc9;align-items:center;gap:12px;min-height:45px;padding:13px 0;font-size:11px;display:flex}.gradient-return strong{margin-left:auto;font-size:17px;font-weight:500}.gradient-return>span:only-child{color:#878682;font-size:10px}.step-explanation{gap:14px;margin:21px 0;animation:.3s enter;display:flex}.step-explanation>b{color:#908f8b;white-space:nowrap;margin-top:3px;font-size:9px}.step-explanation>p{color:#706f6b;font-size:12px;line-height:1.9}.segmented{background:#f2f1ed;border:1px solid #e0dfdb;border-radius:5px;gap:5px;margin:17px 0;padding:4px;display:flex}.segmented>button{color:#807f7b;border-radius:3px;flex:1;padding:8px 5px;font-size:9px;line-height:1.6}.segmented>button.selected{color:#aa7448;background:#fffefa;box-shadow:0 1px 4px #313c1c0a}.conv-layout{justify-content:space-between;align-items:center;gap:14px;padding:25px 0;display:flex}.conv-layout>div{min-width:0}.conv-layout small{color:#82817d;text-align:center;margin-bottom:13px;font-size:9px;display:block}.pixel-grid{grid-template-columns:repeat(5,1fr);gap:3px;display:grid}.pixel-grid>button{color:#91908c;background:#eeede9;border:1px solid #0000;border-radius:2px;width:25px;height:25px;font-size:8px}.pixel-grid>button.filled{color:#c5cccd;background:#717784}.pixel-grid>button.window{color:#cf9365;border-color:#da8251;box-shadow:inset 0 0 0 1px #e4a676}.pixel-grid>button.filled.window{color:#f8d6b6}.kernel-grid{grid-template-columns:repeat(3,1fr);gap:3px;display:grid}.kernel-grid>span,.kernel-grid>button{color:#b28d5f;background:#f1e8d8;border-radius:2px;place-items:center;width:27px;height:27px;font-size:9px;display:grid}.output-grid>button{color:#73726e;background:#e7e6e2}.output-grid>button.selected{color:#fff4dc;background:#d58959}.token-reveal{gap:7px;margin:30px 0;display:flex}.token-reveal>button{text-align:center;color:#bab9b5;background:#f5f4f0;border:1px solid #deddd9;border-radius:4px;flex:1;min-width:0;padding:17px 3px}.token-reveal>button>span{white-space:nowrap;font-size:13px;display:block}.token-reveal small{white-space:nowrap;margin-top:7px;font-size:7px;display:block}.token-reveal>button.next-token{color:#b8996c;border-style:dashed;border-color:#c6b18f}.embedding-display{background:#f0efeb;border-radius:4px;grid-template-columns:1fr 1fr;align-items:center;gap:12px;padding:18px;display:grid}.embedding-display>span{color:#7e7d79;font-size:9px}.embedding-display>b{color:#6d6c68;font:17px Georgia,serif}.embedding-display>strong{color:#6c6b67;font-size:12px;font-weight:500}.grid-world{grid-template-columns:repeat(4,1fr);gap:5px;max-width:340px;margin:23px auto;display:grid}.grid-world>div{border:1px solid #e5dfd0;border-radius:3px;flex-direction:column;justify-content:center;align-items:center;gap:4px;height:58px;transition:background .3s;display:flex}.grid-world b{color:#aa8057;font-size:15px;font-weight:500}.grid-world small{color:#baa483;font-size:7px}.grid-world .wall{color:#eeede9;background:repeating-linear-gradient(45deg,#bebdb9 0 3px,#cfceca 3px 6px);border:0;font-size:9px}.grid-world .robot{outline-offset:-2px;outline:2px solid #ce8051}.grid-world .robot>b{color:#bd7145;font-size:20px}.grid-world .goal{border-color:#cdb480;background:#efe0c4!important}.grid-world .goal>b{color:#a17d43;font-size:12px}.grid-controls{justify-content:space-between;align-items:center;gap:20px;display:flex}.dpad{gap:5px;display:flex}.dpad>button{color:#7c7b77;background:#f4f3ef;border:1px solid #dad9d5;border-radius:3px;width:29px;height:29px}.grid-controls>div:last-child{text-align:right}.grid-controls b{color:#9e8058;font-size:12px;font-weight:500;display:block}.grid-controls span{color:#898884;margin-top:3px;font-size:9px;display:block}.transformer-stage{margin-top:23px}.transformer-tokens{justify-content:space-around;display:flex}.transformer-tokens>div{text-align:center;background:#eeede9;border:1px solid #deddd9;border-radius:3px;min-width:68px;padding:10px 8px}.transformer-tokens span{color:#71706c;font-size:15px;display:block}.transformer-tokens small{color:#8d8c88;font-size:7px}.transformer-stage>svg{width:100%;height:95px;display:block}.attention-flow{animation:4s linear infinite dash}.module-active{text-align:center;background:#eae9e5;border:1px solid #d2d1cd;border-radius:4px;padding:18px;animation:.3s enter}.module-active>span{color:#8e8d89;font-size:8px}.module-active h3{color:#6c6b67;margin-top:6px;font-size:17px;font-weight:500}.module-active p{color:#7e7d79;margin-top:7px;font-size:10px;line-height:1.8}.module-strip{justify-content:center;gap:9px;margin:20px 0;display:flex}.module-strip>button{color:#888783;border:1px solid #dbdad6;border-radius:50%;place-items:center;width:25px;height:25px;font-size:9px;display:grid}.module-strip>button.selected{color:#fff6e9;background:#db9870;border-color:#db9870}.loss-tokens{grid-template-columns:repeat(4,1fr);gap:8px;margin:30px 0;display:grid}.loss-tokens>div{text-align:center;color:#92918d;background:#f3f2ee;border:1px solid #e1e0dc;border-radius:4px;padding:15px 5px}.loss-tokens small{font-size:7px;display:block}.loss-tokens b{margin-top:12px;font-size:14px;font-weight:500;display:block}.loss-tokens span{margin:12px 0;font-size:8px;display:block}.loss-tokens strong{border-top:1px solid #dfdeda;padding-top:12px;font-size:11px;font-weight:500;display:block}.loss-tokens .included{color:#ad8350;background:#f3e1ca;border-color:#dec09a}.lora-diagram{justify-content:center;align-items:center;gap:12px;min-height:200px;padding:30px 0;display:flex}.lora-diagram>span{color:#92918d;font-size:19px}.matrix-large{background:repeating-linear-gradient(90deg,#e0dfdb 0 5px,#f0efeb 5px 6px);border:1px solid #d4d3cf;border-radius:3px;flex-direction:column;justify-content:center;align-items:center;gap:8px;width:120px;height:120px;display:flex}.matrix-large>span,.matrix-narrow>span,.matrix-wide>span{color:#757470;font:23px Georgia,serif}.matrix-large b,.matrix-narrow b,.matrix-wide b{color:#868581;white-space:nowrap;font-size:8px;font-weight:500}.matrix-large small{color:#8f8e8a;font-size:8px}.matrix-narrow,.matrix-wide{background:#f3e0c4;border:1px solid #e1ba85;border-radius:3px;flex-direction:column;justify-content:center;align-items:center;gap:12px;min-width:28px;height:120px;transition:width .2s,height .2s;display:flex}.matrix-wide{width:85px}.matrix-narrow>span,.matrix-wide>span{color:#b88d51}.matrix-narrow b,.matrix-wide b{color:#c3a773;font-size:7px}.response-pair{grid-template-columns:1fr 1fr;gap:12px;margin:25px 0;display:grid}.response-pair>div{background:#f4f4eb;border:1px solid #dddcd8;border-radius:4px;padding:17px 13px;position:relative;overflow:hidden}.response-pair>div>span{color:#84837f;font-size:9px}.response-pair>div>p{color:#706f6b;min-height:40px;margin:11px 0 15px;font-size:11px;line-height:1.85}.response-pair b{color:#ac864b;font-size:25px;font-weight:500}.response-pair i{background:#d9a15e;height:3px;transition:width .2s;display:block;position:absolute;bottom:0;left:0}.response-pair>div:last-child i{background:#807f7b}.demo-surface>select{color:#6f6e6a;background:#f3f2ee;border:1px solid #dad9d5;border-radius:3px;width:100%;margin:17px 0;padding:11px;font-size:11px}.retrieval-docs{gap:12px;display:grid}.retrieval-docs>button{text-align:left;background:#faf9f5;border:1px solid #deddd9;border-radius:4px;padding:15px;position:relative;overflow:hidden}.retrieval-docs>button.selected{background:#f4ead8;border-color:#d0a16f}.retrieval-docs>button>div{align-items:center;gap:8px;display:flex}.retrieval-docs span{color:#8f8e8a;font-size:8px}.retrieval-docs b{color:#73726e;flex:1;font-size:11px;font-weight:500}.retrieval-docs strong{color:#b79159;font-size:12px;font-weight:500}.retrieval-docs p{color:#82817d;margin-top:10px;font-size:9px;line-height:1.9}.retrieval-docs i{background:#d2ae78;height:2px;position:absolute;bottom:0;left:0}.retrieval-answer{background:#edece8;border-radius:4px;margin-top:19px;padding:16px}.retrieval-answer small{color:#868581;font-size:8px}.retrieval-answer p{color:#73726e;margin-top:8px;font-size:11px;line-height:1.9}.memory-bars{margin:28px 0}.memory-bars>div{color:#858480;grid-template-columns:1fr auto;gap:10px;margin-top:18px;padding-bottom:20px;font-size:10px;display:grid;position:relative}.memory-bars>div>i{background:#94938f;height:10px;transition:width .2s;position:absolute;bottom:0;left:0}.memory-bars>div:last-child>i{background:#daa46e}.memory-bars b{color:#9f895b;font-size:12px;font-weight:500}.memory-bars>div>span{font-size:10px}.lab-chart{margin:18px 0}.lab-chart svg{width:100%;display:block}.chart-label{fill:#81807c;font-size:10px}.lab-controls{border-top:1px solid #e0dfdb;grid-template-columns:1fr 1fr;align-items:center;gap:22px;margin-top:18px;padding-top:19px;display:grid}.lab-controls>label{color:#74736f;font-size:10px;display:block}.lab-controls strong{float:right;color:#b48b59;font-weight:500}.range-labels{color:#898884;justify-content:space-between;margin-top:5px;font-size:8px;display:flex}.experiment-stats{justify-content:space-between;gap:13px;display:flex}.experiment-stats small{color:#878682;font-size:8px;display:block}.experiment-stats b{color:#72716d;overflow-wrap:anywhere;margin-top:7px;font-size:19px;font-weight:500;display:block}.lab-actions{flex-wrap:wrap;align-items:center;gap:9px;margin-top:20px;display:flex}.lab-actions .primary,.lab-actions .secondary{gap:6px;min-height:33px;padding:9px 11px;font-size:9px}.lab-actions>span{color:#858480;width:100%;font-size:8px;line-height:1.9}.lab-note{color:#7e7d79;margin-top:18px;font-size:9px;line-height:1.9}.attention-demo{margin-top:23px}.token-line{justify-content:center;gap:7px;margin-bottom:20px;display:flex}.token-line>button{color:#74736f;background:#f5f4f0;border:1px solid #deddd9;border-radius:3px;flex:1;padding:10px 7px;font-size:12px}.token-line small{color:#8c8b87;margin-top:6px;font-size:7px;display:block}.token-line>button.selected{color:#6a7ca1;background:#e4e8ef;border-color:#a7b6cf}.heatmap{grid-template-columns:45px repeat(4,1fr);align-items:center;gap:4px;display:grid}.heatmap>span{text-align:center;color:#807f7b;padding-bottom:7px;font-size:9px}.heatmap-row{display:contents}.heatmap-row>button{border-radius:2px;height:39px;font-size:10px}.heatmap-row>button:first-child{color:#878682;text-align:right;background:0 0;padding-right:7px;font-size:9px}.heatmap-row>button.active-label{color:#6e7c9a;font-weight:600}.demo-insight{color:#767571;background:#f0efeb;border-radius:3px;margin-top:18px;padding:13px;font-size:10px;line-height:1.85}.lab-controls>.switch-label{align-items:center;gap:7px;font-size:9px;display:flex}.bandit-machines{gap:10px;margin-top:24px;display:flex}.machine{background:#f5f1e5;border:1px solid #e1dfcc;border-radius:4px;flex-direction:column;flex:1;align-items:center;gap:8px;padding:15px 7px;display:flex}.machine-letter{color:#a49b6b;background:#eae5d0;border:1px solid #d4cfac;border-radius:50%;place-items:center;width:41px;height:41px;font:23px Georgia,serif;display:grid}.machine small{white-space:nowrap;color:#aea77e;margin-top:6px;font-size:7px}.machine strong{color:#a59762;font-size:23px;font-weight:500}.machine>span:not(.machine-letter){color:#b0ab7e;font-size:8px}.machine>em{color:#bd9660;font-size:7px;font-style:normal}.machine>b{color:#a8a16e;border-top:1px solid #e0dcc3;width:100%;margin-top:7px;padding-top:12px;font-size:8px;font-weight:500}.prompt-demo{background:#f0efeb;border-radius:4px;margin:22px 0;padding:20px}.prompt-demo>span{color:#858480;font-size:8px}.prompt-demo p{color:#757470;letter-spacing:1px;margin-top:10px;font-size:19px}.prompt-demo b{color:#d2a570;font-weight:400}.probability-bars{gap:13px;margin:20px 0;display:grid}.probability-bars>div{align-items:center;gap:12px;font-size:10px;display:flex}.probability-bars>div>span{color:#7e7d79;width:30px}.probability-bars>div>div{background:#eeede9;border-radius:2px;flex:1;height:20px;overflow:hidden}.probability-bars i{border-radius:2px;height:100%;transition:width .2s;display:block}.probability-bars b{color:#a69771;width:43px;font-size:10px;font-weight:500}.sample-results{flex-wrap:wrap;gap:6px;margin-top:16px;display:flex}.sample-results>span{color:#b39769;background:#efe5d4;border-radius:3px;padding:5px 9px;font-size:9px;animation:.2s enter}.sample-results small{color:#878682;font-size:9px;line-height:1.8}.library-heading-right>p,.featured-copy>p,.feature-skills,.featured-copy>small,.stage-row-header p,.stage-lessons p,.stage-lessons>button>svg,.site-footer,.collection-heading>p,.lab-index small,.lab-index>button>span,.paper-entry small,.paper-entry p,.paper-entry summary,.paper-actions a,.fine-print,.learning-summary span,.reset-row p,.lesson-heading p,.lesson-kicker,.lesson-content>p,.story-paragraph>p,.analogy-boundary p,.concept-list p,.causal-bridge p,.derivation-step>p,.pitfall p,.observe-box>p,.code-walkthrough p,.practice-check p,.lesson-relations>span,.source-paper>p,.demo-caption,.demo-slider,.readouts small,.demo-title>b,.experiment-stats small,.lab-note,.range-labels,.lab-actions>span,.demo-insight,.retrieval-docs p{color:#6c6b67}.lesson-content p.story-paragraph,.story-paragraph>p{color:#555450}.lesson-content h2,.concept-list h3,.code-walkthrough h3{color:#2c2d30}.lesson-conclusion>p,.lead-paragraph{color:#585753!important}.readouts b,.experiment-stats b,.vector-equation b,.node-input strong,.node-output strong,.flow-node>b,.module-active h3,.embedding-display>strong,.paper-meta>span{color:#565d68}.sidebar-stage>button,.sidebar-stage>div>button{color:#6c6b67}.sidebar-stage>div>button.active-lesson{color:#a95336}.sidebar-stage>button.active-stage{color:#b45737}.source-paper>p,.lesson-relations>button{color:#6c6b67}.lesson-relations>button{background:#f0f0e8;border-color:#dad9d5}.demo-slider b,.vector-equation>strong,.node-output strong,.readouts>div:first-child b{color:#b25b3b}.line-numbers{color:#697478}.code-output pre{color:#d6d5d1}.code-editor textarea{color:#e0dfdb}.code-toolbar small,.code-bottom>span,.code-output>span,.code-output>p{color:#7b7a76}.token-reveal>button.revealed{color:#a05737;background:#f1e1d6;border-color:#d9bca7}.module-active h3,.grid-world b,.retrieval-docs b,.retrieval-answer p,.response-pair>div>p,.loss-tokens b{color:#6e6d69}.demo-surface{box-shadow:0 4px 18px #3a372608}.featured-demo .demo-surface{box-shadow:none}@keyframes enter{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}@keyframes dash{to{stroke-dashoffset:-32px}}@media (min-width:1600px){.library-shell{max-width:1480px;padding:65px 80px 0}.featured-copy{padding:42px}.featured-copy h2{max-width:450px;font-size:35px}.featured-demo{padding:30px 38px}.featured-demo .fit-graphic,.featured-demo .plot{max-height:270px}.featured-demo .fit-graphic svg{height:270px}.classroom-main{padding:45px 55px}.lesson-workbench{grid-template-columns:minmax(0,1.1fr) minmax(390px,.9fr);gap:48px}.lesson-heading h1{font-size:32px}.lesson-content h2{font-size:29px}.story-paragraph>p{font-size:15px}.demo-surface{padding:27px}.step-4{grid-template-columns:minmax(0,1.25fr) minmax(350px,.75fr)}}@media (max-width:1200px){.site-header{gap:25px;padding:0 30px}.library-shell{padding:42px 40px 0}.featured-copy{padding:28px}.featured-copy h2{font-size:26px}.featured-copy>p{font-size:12px}.featured-demo{padding:24px}.featured-class{min-height:450px}.course-sidebar{width:190px;padding:25px 12px}.classroom-main{margin-left:190px;padding:32px 28px}.lesson-heading h1{font-size:25px}.lesson-workbench{grid-template-columns:minmax(0,1fr) minmax(300px,.95fr);gap:25px}.lesson-content h2{font-size:23px}.story-paragraph>p{font-size:13px;line-height:2.1}.demo-surface{padding:18px}.lesson-stepper{gap:10px}.lesson-stepper>button>b{font-size:9px}.lesson-stepper>button>span{width:17px;height:17px;font-size:8px}.lesson-stepper>button{gap:5px}.dual-sliders{gap:15px}.readouts{gap:10px}.readouts b{font-size:18px}.readouts small{font-size:8px}.demo-title>b{font-size:10px}.demo-title>span{font-size:7px}.pixel-grid>button{width:21px;height:21px;font-size:7px}.kernel-grid>span,.kernel-grid>button{width:23px;height:23px;font-size:8px}.conv-layout{gap:10px}.neuron-node{width:78px;height:78px}.node-input,.node-output{min-width:47px}.signal-wire{margin:0 4px}.signal-wire>span{font-size:8px}.node-input strong,.node-output strong{font-size:18px}.matrix-large{width:95px;height:95px}.matrix-narrow{height:95px}.matrix-wide{width:65px}.lora-diagram{gap:9px}.matrix-large b{font-size:7px}.lab-workspace{grid-template-columns:230px minmax(0,1fr);gap:28px}.step-4{grid-template-columns:minmax(0,1fr) minmax(275px,.8fr)}.code-toolbar small{display:none}.line-numbers{min-width:30px;padding-left:8px;padding-right:9px;font-size:9px}.code-editor textarea{font-size:10px}.class-header-title{margin-left:0;font-size:10px}.class-header-actions{gap:12px}.code-output pre{font-size:10px}.probability-dial{width:110px;height:110px;padding:12px}.probability-visual{gap:25px}.probability-visual>div:last-child>strong{font-size:30px}}@media (max-width:1000px){.library-shell{padding:38px 30px 0}.featured-class{grid-template-columns:1fr 1fr}.featured-copy{padding:27px 25px}.featured-copy h2{font-size:24px;line-height:1.8}.featured-copy>p{font-size:11px}.featured-demo{padding:22px 20px}.feature-skills{gap:8px;font-size:9px}.featured-copy>small{font-size:8px}.featured-demo .demo-title>b{font-size:10px}.featured-demo .readouts b{font-size:17px}.featured-demo .demo-actions>span{width:100%;margin-left:0}.course-sidebar{display:none}.classroom-main{margin-left:0;padding:32px 32px 40px}.class-header-actions>.icon-button{display:none}.class-header-title{margin-left:10px}.lesson-workbench{grid-template-columns:minmax(0,1fr) minmax(320px,.95fr);gap:30px}.lesson-stepper>button>b{font-size:10px}.lesson-stepper>button{gap:8px}.lesson-stepper>button>span{width:20px;height:20px;font-size:9px}.lesson-content h2{font-size:25px}.story-paragraph>p{font-size:14px}.focus-mode .classroom-main{padding:32px}.lab-workspace{grid-template-columns:210px minmax(0,1fr);gap:22px}.lab-index>button{gap:8px;padding:13px 6px}.lab-index b{font-size:10px}.collection-heading h1{font-size:33px}.step-4{grid-template-columns:minmax(0,1.2fr) minmax(280px,.8fr)}.lesson-heading h1{font-size:28px}.lesson-stepper{margin-bottom:30px}.paper-entry h2{font-size:22px}.paper-entry{grid-template-columns:50px 1fr 28px;gap:20px}.backup-actions{flex-wrap:wrap}.learning-summary{gap:30px}.demo-title{gap:7px}}@media (max-width:760px){.site-header{gap:18px;height:65px;padding:0 22px}.brand-symbol{width:27px;height:28px;font-size:16px}.brand b{font-size:21px}.brand-en{letter-spacing:1.2px;max-width:58px;padding-left:10px;font-size:6px}.desktop-nav{gap:22px}.desktop-nav button{font-size:11px}.header-progress{font-size:9px}.header-progress>div{width:42px}.library-shell{padding:35px 24px 0}.library-heading{align-items:flex-start;gap:25px;margin-bottom:30px}.library-heading h1{font-size:37px}.library-heading-right{min-width:220px;padding-top:30px}.library-heading-right>p{margin-bottom:15px;font-size:10px}.featured-class{grid-template-columns:1fr;min-height:0;margin-bottom:36px}.featured-copy{border-bottom:1px solid #deddd2;border-right:0;padding:25px}.featured-copy h2{max-width:none;margin:22px 0 15px;font-size:27px;line-height:1.65}.featured-copy>p{max-width:none;font-size:12px}.feature-skills{margin:17px 0 22px;font-size:10px}.featured-copy .primary{min-height:40px;padding:12px 19px;font-size:12px}.featured-copy>small{margin-top:18px;font-size:9px}.featured-demo{padding:22px 27px}.featured-demo .fit-graphic svg{height:250px}.featured-demo .fit-graphic{max-height:250px}.featured-demo .readouts{justify-content:space-around}.featured-demo .demo-actions>span{width:auto;margin-left:auto}.stage-row-header{gap:20px;padding:22px 3px}.stage-n{min-width:38px;font-size:26px}.stage-row-header h3{font-size:16px}.stage-row-header p{font-size:10px}.stage-lessons{padding-left:58px}.stage-lessons>button{gap:12px;padding:15px 6px}.stage-lessons h4{font-size:12px}.stage-lessons p{font-size:9px}.subheading h2{font-size:19px}.subheading>span{font-size:9px}.class-header-title{gap:8px;margin-left:0;font-size:10px}.class-header-title>span,.class-header-title>svg{display:none}.class-header-actions{gap:12px}.class-header-actions>span{display:none}.class-header-actions .secondary{gap:6px;padding:8px 10px;font-size:9px}.in-classroom .brand-en{display:none}.classroom-main,.focus-mode .classroom-main{padding:28px 25px 35px}.lesson-heading h1{font-size:27px}.lesson-heading p{font-size:12px}.lesson-workbench,.step-4{grid-template-columns:1fr;gap:32px}.experiment-aside{grid-row:1;width:100%;max-width:620px;margin:auto;position:static}.step-0 .experiment-aside,.step-1 .experiment-aside,.step-2 .experiment-aside,.step-5 .experiment-aside,.step-4 .experiment-aside{grid-row:auto}.lesson-content{max-width:680px}.demo-surface{padding:24px}.lesson-stepper{gap:14px;margin:25px 0 30px}.lesson-stepper>button>b{font-size:9px}.lesson-stepper>button{gap:6px}.lesson-stepper>button>span{width:18px;height:18px;font-size:8px}.lesson-content h2{font-size:26px}.story-paragraph>p{font-size:14px;line-height:2.1}.lesson-relations{margin-top:20px}.source-paper{margin-top:18px}.classroom-main .experiment-aside>.demo-surface{max-width:600px}.lab-workspace{grid-template-columns:1fr;gap:25px}.lab-index{border:0;gap:8px;max-height:none;padding:0 0 12px;display:flex;overflow:auto}.lab-index>.search-box{display:none}.lab-index>button{border:1px solid var(--line);background:#fcfbf7;border-radius:4px;flex-shrink:0;width:auto;min-width:160px;max-width:180px;padding:13px}.lab-index b{font-size:10px}.lab-index>button>span{font-size:9px}.lab-index>button>svg{display:none}.lab-index small{font-size:8px}.lab-current{position:static}.lab-current>.demo-surface{max-width:600px;margin:auto}.lab-current>.text-button{margin-top:19px}.paper-entry{grid-template-columns:43px 1fr 25px;gap:18px}.paper-year{font-size:20px}.paper-entry h2{font-size:21px}.paper-entry p{font-size:11px}.filter-tabs{gap:23px}.filter-tabs button{font-size:10px}.note-grid{grid-template-columns:1fr}.learning-summary{flex-wrap:wrap;gap:30px}.learning-summary b{font-size:29px}.backup-actions{width:100%;margin-top:5px;margin-left:0}.reset-row{flex-direction:column;align-items:flex-start;gap:20px}.collection-heading{margin-bottom:30px}.collection-heading h1{font-size:32px}.code-editor textarea{min-height:350px;font-size:12px}.line-numbers{min-width:38px;padding-right:12px;font-size:10px}.code-toolbar small{font-size:8px;display:inline}.code-output pre{font-size:11px}.readouts b{font-size:23px}.readouts small{font-size:9px}.demo-title>b{font-size:12px}.demo-title>span{font-size:8px}.pixel-grid>button{width:28px;height:28px;font-size:9px}.kernel-grid>span,.kernel-grid>button{width:29px;height:29px;font-size:10px}.conv-layout{justify-content:space-around;gap:20px}.neuron-node{width:100px;height:100px}.node-input strong,.node-output strong{font-size:23px}.node-input,.node-output{min-width:65px}.signal-wire{margin:0 10px}.signal-wire>span{font-size:10px}.matrix-large{width:125px;height:125px}.matrix-narrow{height:125px}.matrix-wide{width:100px}.lora-diagram{gap:18px}.matrix-large b{font-size:9px}.demo-caption{font-size:10px}.heatmap-row>button{height:48px}.grid-world>div{height:65px}.experiment-stats b{font-size:24px}.experiment-stats small{font-size:9px}.lab-controls>label{font-size:11px}.lab-note,.lab-actions .primary,.lab-actions .secondary{font-size:10px}.demo-actions>.primary,.demo-actions>.secondary{font-size:11px}.probability-dial{width:135px;height:135px}.probability-visual>div:last-child>strong{font-size:36px}}@media (max-width:520px){.site-header{gap:15px;height:62px;padding:0 18px}.desktop-nav{display:none}.header-progress{margin-left:auto;margin-right:8px}.header-progress>div{width:45px}.mobile-menu{display:inline-flex}.mobile-nav{z-index:35;background:#f9f8f2;border-bottom:1px solid #d8d7d3;padding:20px;display:block;position:fixed;top:62px;left:0;right:0;box-shadow:0 10px 30px #1d231211}.mobile-nav>nav{grid-template-columns:repeat(4,1fr);gap:10px;display:grid}.mobile-nav>nav>button{color:#73726e;flex-direction:column;align-items:center;gap:9px;padding:10px;font-size:11px;display:flex}.mobile-chapters{border-top:1px solid var(--line);gap:4px;margin-top:13px;padding-top:14px;display:grid}.mobile-chapters>button{text-align:left;color:#6c6b67;padding:10px;font-size:11px}.library-shell{padding:31px 20px 0}.library-heading{margin-bottom:25px;display:block}.edition-label{margin-bottom:14px;font-size:9px}.library-heading h1{letter-spacing:-1.5px;font-size:38px;line-height:1.5}.library-heading h1>br{display:none}.library-heading-right{min-width:0;padding-top:17px}.library-heading-right>p{margin-bottom:18px;font-size:11px}.search-box{padding:11px 12px}.search-box input{font-size:11px}.featured-class{border-radius:6px}.featured-copy{padding:22px}.featured-copy h2{margin-top:22px;font-size:25px;line-height:1.65}.course-label,.course-label>span{font-size:8px}.course-label>b{font-size:9px}.featured-copy>p{font-size:11px;line-height:1.9}.feature-skills{margin:16px 0 23px;font-size:9px}.featured-copy>.primary{min-height:40px;padding:12px 18px;font-size:11px}.featured-copy>small{font-size:8px}.featured-demo{padding:21px 18px}.featured-demo .fit-graphic svg{height:220px}.featured-demo .fit-graphic{max-height:220px}.featured-demo .demo-equation{padding:11px 7px;font-size:11px}.featured-demo .demo-actions>span{width:100%;margin-left:0;font-size:8px}.featured-demo .demo-caption{font-size:8px;line-height:1.9}.featured-demo .readouts b{font-size:18px}.featured-demo .readouts small{font-size:8px}.featured-demo .demo-slider{font-size:9px}.featured-demo .demo-title>b{font-size:10px}.subheading{margin-bottom:14px}.subheading h2{font-size:18px}.subheading>span{font-size:8px}.stage-row-header{gap:16px;padding:23px 0}.stage-n{min-width:31px;font-size:25px}.stage-row-header h3{font-size:16px}.stage-row-header p{max-width:220px;font-size:9px;line-height:1.9}.stage-course-count{gap:4px;font-size:11px}.stage-course-count>span{font-size:8px}.stage-row-header>svg{width:15px;margin-left:0}.stage-lessons{padding-left:0}.stage-lessons>button{gap:11px;padding:17px 3px}.stage-lessons>button>span{width:21px;height:21px;font-size:8px}.stage-lessons h4{font-size:12px;line-height:1.7}.stage-lessons p{font-size:9px;line-height:1.9}.stage-lessons>button>svg:nth-last-child(2){display:none}.stage-lessons>button>svg:last-child{width:16px}.site-footer{flex-wrap:wrap;gap:15px;margin-top:30px;font-size:8px}.site-footer>span:first-child{letter-spacing:1px;font-size:8px}.site-footer>span:nth-child(2),.site-footer button{font-size:8px}.search-list>button{flex-wrap:wrap;gap:15px}.search-list>button>span{width:65px;font-size:8px}.search-list>button>b{font-size:12px}.collection-heading>span{margin-bottom:12px;font-size:10px}.collection-heading h1{font-size:29px}.collection-heading>p{margin-top:13px;font-size:11px}.collection-heading{margin-bottom:28px}.lab-workspace{gap:22px}.lab-index>button{min-width:153px}.lab-index b{font-size:10px}.demo-surface{padding:19px 17px}.demo-title{gap:7px;margin-bottom:12px;padding-bottom:14px}.demo-title>b{font-size:10px}.demo-title>span{font-size:7px}.demo-title>i{width:4px;height:4px}.demo-equation{font-size:12px}.dual-sliders{gap:17px}.demo-slider{margin-top:16px;font-size:10px}.demo-slider b{font-size:10px}.readouts{gap:13px;margin-top:17px;padding-top:15px}.readouts b{margin-top:6px;font-size:20px}.readouts small{font-size:8px}.demo-actions>.primary,.demo-actions>.secondary{min-height:34px;padding:10px 12px;font-size:10px}.demo-actions>span{font-size:8px}.demo-caption{margin-top:17px;font-size:9px;line-height:1.95}.vector-equation{gap:12px;padding-top:25px}.vector-equation b{font-size:21px}.vector-equation>strong{font-size:29px}.vector-equation small{font-size:8px}.probability-visual{gap:28px;padding:25px 0}.probability-dial{width:116px;height:116px;padding:12px}.probability-dial b{font-size:24px}.probability-visual>div:last-child>strong{font-size:30px}.probability-visual>div:last-child>span{font-size:9px}.probability-visual>div:last-child>small{font-size:8px}.node-input,.node-output{min-width:50px}.node-input strong,.node-output strong{font-size:19px}.node-input small,.node-output small{font-size:8px}.neuron-node{width:84px;height:84px}.neuron-node strong{font-size:23px}.signal-wire{margin:0 5px}.signal-wire>span{font-size:8px}.conv-layout{justify-content:space-between;gap:11px}.pixel-grid>button{width:22px;height:22px;font-size:7px}.kernel-grid>span,.kernel-grid>button{width:24px;height:24px;font-size:8px}.conv-layout small{font-size:8px}.conv-layout>div:first-child{flex-shrink:0}.pixel-grid,.kernel-grid{gap:2px}.token-reveal{gap:5px}.token-reveal>button{padding:13px 3px}.token-reveal>button>span{font-size:12px}.token-reveal small{font-size:6px}.embedding-display{gap:10px;padding:16px}.embedding-display>span{font-size:8px}.embedding-display>strong{font-size:11px}.grid-world>div{height:58px}.grid-world b{font-size:14px}.grid-world small{font-size:7px}.grid-controls>div:last-child b{font-size:11px}.grid-controls>div:last-child span{font-size:8px}.grid-controls{gap:15px}.transformer-tokens>div{min-width:62px;padding:10px 6px}.module-active p{font-size:9px}.module-active h3{font-size:16px}.matrix-large{width:96px;height:96px}.matrix-narrow{height:96px}.matrix-wide{width:67px}.lora-diagram{gap:9px;min-height:170px}.matrix-large>span,.matrix-narrow>span,.matrix-wide>span{font-size:21px}.matrix-large b{font-size:7px}.matrix-narrow b,.matrix-wide b{font-size:6px}.response-pair{gap:9px}.response-pair>div{padding:15px 11px}.response-pair>div>p{min-height:57px;font-size:10px}.response-pair b{font-size:23px}.loss-tokens{gap:6px}.loss-tokens>div{padding:14px 4px}.loss-tokens b{font-size:12px}.loss-tokens small{font-size:6px}.loss-tokens span{font-size:7px}.loss-tokens strong{font-size:10px}.lab-controls{grid-template-columns:1fr;gap:20px;margin-top:18px}.lab-controls>label{font-size:10px}.experiment-stats{justify-content:space-between;gap:20px}.experiment-stats small{font-size:8px}.experiment-stats b{font-size:23px}.lab-actions .primary,.lab-actions .secondary{min-height:34px;font-size:10px}.lab-note{font-size:9px}.heatmap{grid-template-columns:40px repeat(4,1fr);gap:4px}.heatmap-row>button{height:40px;font-size:10px}.token-line>button{padding:10px 6px;font-size:12px}.demo-insight,.lab-controls>.switch-label{font-size:9px}.prompt-demo{margin:20px 0;padding:18px}.prompt-demo p{font-size:19px}.probability-bars>div{gap:10px}.probability-bars>div>div{height:20px}.sample-results small{font-size:8px}.filter-tabs{gap:15px 17px;margin-bottom:0}.filter-tabs button{padding-bottom:11px;font-size:9px}.paper-entry{grid-template-columns:36px 1fr 20px;gap:12px;padding:24px 0}.paper-year{font-size:18px}.paper-entry h2{margin-top:10px;font-size:19px;line-height:1.5}.paper-entry small{font-size:8px}.paper-entry p{font-size:10px;line-height:1.9}.paper-meta{gap:7px;font-size:8px}.paper-meta>span{padding:2px 5px;font-size:8px}.paper-actions{flex-wrap:wrap;gap:13px;margin-top:16px}.paper-actions button,.paper-actions a{font-size:9px}.paper-entry>.icon-button{width:20px;height:25px}.paper-entry>.icon-button>svg{width:16px}.fine-print{font-size:9px;line-height:1.95}.learning-summary{gap:34px;padding:23px 0}.learning-summary b{font-size:29px}.learning-summary span{font-size:9px}.learning-summary b>small{font-size:11px}.backup-actions{gap:10px}.backup-actions>.secondary{padding:10px 12px;font-size:10px}.note-entry{padding:18px}.note-entry>button{font-size:11px}.note-entry textarea{min-height:150px;font-size:12px}.empty-state{padding:50px 15px}.empty-state h3{font-size:18px}.empty-state p{font-size:11px}.reset-row p{font-size:9px}.toast{width:max-content;padding:13px 17px;font-size:11px;bottom:20px}.in-classroom .site-header{gap:14px}.in-classroom .brand b{display:none}.class-header-title{flex:1;max-width:150px;font-size:10px}.class-header-actions>.secondary{color:#84837f;background:0 0;border:0;min-height:30px;padding:4px;font-size:9px}.class-header-actions>.secondary>svg{width:13px}.in-classroom .mobile-menu{flex-shrink:0;margin-left:0}.classroom-main,.focus-mode .classroom-main{padding:25px 20px 30px}.lesson-heading h1{margin-top:12px;font-size:24px;line-height:1.6}.lesson-heading p{margin-top:10px;font-size:11px;line-height:1.9}.lesson-kicker{font-size:8px}.lesson-stepper{scrollbar-width:none;gap:21px;margin:24px -20px 27px;padding:0 20px}.lesson-stepper::-webkit-scrollbar{display:none}.lesson-stepper>button{gap:6px;padding-bottom:14px}.lesson-stepper>button>b{font-size:10px}.lesson-stepper>button>span{width:18px;height:18px;font-size:8px}.lesson-content h2{margin-bottom:21px;font-size:24px;line-height:1.7}.content-section-label{margin-bottom:13px;font-size:9px}.story-paragraph{gap:12px;margin-bottom:22px}.story-paragraph>span{min-width:19px;font-size:15px}.story-paragraph>p{font-size:14px;line-height:2.1}.story-paragraphs{margin-top:24px}.story-next{gap:10px;margin:25px 0;font-size:12px}.why-box{margin-top:26px;padding:21px}.why-box h3{font-size:12px}.why-box p{font-size:12px;line-height:1.95}.lesson-step-actions{gap:13px;margin-top:30px;padding-top:21px}.lesson-step-actions .primary,.lesson-step-actions .secondary{min-height:37px;padding:10px 13px;font-size:10px}.lesson-step-actions>span{font-size:9px}.lesson-workbench{gap:30px}.experiment-aside>.text-button{font-size:10px}.lesson-relations>button{padding:6px 8px;font-size:9px}.source-paper>p{font-size:10px}.lead-paragraph{font-size:15px!important;line-height:2.05!important}.analogy-boundary{padding:17px}.analogy-boundary p{font-size:11px}.concept-list>section{padding:21px 0}.concept-list h3{font-size:14px}.concept-list p{font-size:13px;line-height:2.05}.causal-bridge p{font-size:12px}.derivation-intro{font-size:12px!important}.derivation-step{padding:20px 0}.derivation-step h3{font-size:13px}.derivation-step>p{font-size:12px}.math-block{padding:16px 13px;font-size:14px}.derive-controls{gap:17px}.derive-controls>.primary{font-size:11px}.derive-controls>.text-button{font-size:10px}.pitfall p{font-size:11px}.experiment-tasks>label{padding:16px 13px}.experiment-tasks>label>span{font-size:12px}.observe-box>p{font-size:11px}.observe-box textarea,.lesson-note textarea{min-height:150px;font-size:12px}.code-toolbar{padding:11px 12px;font-size:10px}.code-toolbar small{margin-left:4px;font-size:7px}.code-toolbar>div{gap:11px}.code-editor textarea{min-height:360px;font-size:11px;line-height:23px}.code-output pre{font-size:10px}.code-output>p{font-size:9px}.code-output{padding:15px}.code-bottom{padding:11px 12px}.code-bottom>span{font-size:8px}.code-bottom>button{padding:9px 12px;font-size:9px}.expected-output>p{font-size:11px}.code-walkthrough p,.code-challenge h3{font-size:12px}.quiz-options>button{gap:11px;padding:15px 13px;font-size:12px}.quiz-options>button>span{width:23px;height:23px;font-size:9px}.quiz-feedback{padding:16px;font-size:12px}.practice-check label{font-size:10px;line-height:1.9}.lesson-conclusion>p{font-size:15px}.complete-button{font-size:11px}}@media (max-width:370px){.brand-en{display:none}.library-heading h1{font-size:34px}.pixel-grid>button{width:19px;height:19px}.kernel-grid>span,.kernel-grid>button{width:21px;height:21px}.conv-layout{gap:8px}.demo-surface{padding:16px 14px}.readouts b{font-size:18px}.featured-demo{padding:18px 14px}.neuron-node{width:74px;height:74px}.signal-wire>span{font-size:7px}.code-toolbar small{display:none}.lesson-heading h1{font-size:22px}}@media (prefers-reduced-motion:reduce){*,:before,:after{scroll-behavior:auto!important;transition:none!important;animation:none!important}}.site-loading{color:#6c6863;justify-content:center;align-items:center;gap:16px;min-height:100svh;font-size:14px;display:flex}.mobile-menu.icon-button{display:none}@media (max-width:1000px){.in-classroom .mobile-menu.icon-button{display:inline-flex}}@media (max-width:520px){.mobile-menu.icon-button{display:inline-flex}}