@font-face{font-display:block;font-family:KaTeX_AMS;font-style:normal;font-weight:400;src:url(/assets/KaTeX_AMS-Regular-BQhdFMY1.woff2) format("woff2"),url(/assets/KaTeX_AMS-Regular-DMm9YOAa.woff) format("woff"),url(/assets/KaTeX_AMS-Regular-DRggAlZN.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Caligraphic;font-style:normal;font-weight:700;src:url(/assets/KaTeX_Caligraphic-Bold-Dq_IR9rO.woff2) format("woff2"),url(/assets/KaTeX_Caligraphic-Bold-BEiXGLvX.woff) format("woff"),url(/assets/KaTeX_Caligraphic-Bold-ATXxdsX0.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Caligraphic;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Caligraphic-Regular-Di6jR-x-.woff2) format("woff2"),url(/assets/KaTeX_Caligraphic-Regular-CTRA-rTL.woff) format("woff"),url(/assets/KaTeX_Caligraphic-Regular-wX97UBjC.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Fraktur;font-style:normal;font-weight:700;src:url(/assets/KaTeX_Fraktur-Bold-CL6g_b3V.woff2) format("woff2"),url(/assets/KaTeX_Fraktur-Bold-BsDP51OF.woff) format("woff"),url(/assets/KaTeX_Fraktur-Bold-BdnERNNW.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Fraktur;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Fraktur-Regular-CTYiF6lA.woff2) format("woff2"),url(/assets/KaTeX_Fraktur-Regular-Dxdc4cR9.woff) format("woff"),url(/assets/KaTeX_Fraktur-Regular-CB_wures.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:normal;font-weight:700;src:url(/assets/KaTeX_Main-Bold-Cx986IdX.woff2) format("woff2"),url(/assets/KaTeX_Main-Bold-Jm3AIy58.woff) format("woff"),url(/assets/KaTeX_Main-Bold-waoOVXN0.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:italic;font-weight:700;src:url(/assets/KaTeX_Main-BoldItalic-DxDJ3AOS.woff2) format("woff2"),url(/assets/KaTeX_Main-BoldItalic-SpSLRI95.woff) format("woff"),url(/assets/KaTeX_Main-BoldItalic-DzxPMmG6.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:italic;font-weight:400;src:url(/assets/KaTeX_Main-Italic-NWA7e6Wa.woff2) format("woff2"),url(/assets/KaTeX_Main-Italic-BMLOBm91.woff) format("woff"),url(/assets/KaTeX_Main-Italic-3WenGoN9.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Main-Regular-B22Nviop.woff2) format("woff2"),url(/assets/KaTeX_Main-Regular-Dr94JaBh.woff) format("woff"),url(/assets/KaTeX_Main-Regular-ypZvNtVU.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Math;font-style:italic;font-weight:700;src:url(/assets/KaTeX_Math-BoldItalic-CZnvNsCZ.woff2) format("woff2"),url(/assets/KaTeX_Math-BoldItalic-iY-2wyZ7.woff) format("woff"),url(/assets/KaTeX_Math-BoldItalic-B3XSjfu4.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Math;font-style:italic;font-weight:400;src:url(/assets/KaTeX_Math-Italic-t53AETM-.woff2) format("woff2"),url(/assets/KaTeX_Math-Italic-DA0__PXp.woff) format("woff"),url(/assets/KaTeX_Math-Italic-flOr_0UB.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_SansSerif;font-style:normal;font-weight:700;src:url(/assets/KaTeX_SansSerif-Bold-D1sUS0GD.woff2) format("woff2"),url(/assets/KaTeX_SansSerif-Bold-DbIhKOiC.woff) format("woff"),url(/assets/KaTeX_SansSerif-Bold-CFMepnvq.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_SansSerif;font-style:italic;font-weight:400;src:url(/assets/KaTeX_SansSerif-Italic-C3H0VqGB.woff2) format("woff2"),url(/assets/KaTeX_SansSerif-Italic-DN2j7dab.woff) format("woff"),url(/assets/KaTeX_SansSerif-Italic-YYjJ1zSn.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_SansSerif;font-style:normal;font-weight:400;src:url(/assets/KaTeX_SansSerif-Regular-DDBCnlJ7.woff2) format("woff2"),url(/assets/KaTeX_SansSerif-Regular-CS6fqUqJ.woff) format("woff"),url(/assets/KaTeX_SansSerif-Regular-BNo7hRIc.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Script;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Script-Regular-D3wIWfF6.woff2) format("woff2"),url(/assets/KaTeX_Script-Regular-D5yQViql.woff) format("woff"),url(/assets/KaTeX_Script-Regular-C5JkGWo-.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size1;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Size1-Regular-mCD8mA8B.woff2) format("woff2"),url(/assets/KaTeX_Size1-Regular-C195tn64.woff) format("woff"),url(/assets/KaTeX_Size1-Regular-Dbsnue_I.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size2;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Size2-Regular-Dy4dx90m.woff2) format("woff2"),url(/assets/KaTeX_Size2-Regular-oD1tc_U0.woff) format("woff"),url(/assets/KaTeX_Size2-Regular-B7gKUWhC.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size3;font-style:normal;font-weight:400;src:url(data:font/woff2;base64,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) format("woff2"),url(/assets/KaTeX_Size3-Regular-CTq5MqoE.woff) format("woff"),url(/assets/KaTeX_Size3-Regular-DgpXs0kz.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size4;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Size4-Regular-Dl5lxZxV.woff2) format("woff2"),url(/assets/KaTeX_Size4-Regular-BF-4gkZK.woff) format("woff"),url(/assets/KaTeX_Size4-Regular-DWFBv043.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Typewriter;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Typewriter-Regular-CO6r4hn1.woff2) format("woff2"),url(/assets/KaTeX_Typewriter-Regular-C0xS9mPB.woff) format("woff"),url(/assets/KaTeX_Typewriter-Regular-D3Ib7_Hf.ttf) format("truetype")}.katex{font: 1.21em KaTeX_Main,Times New Roman,serif;line-height:1.2;position:relative;text-indent:0;text-rendering:auto}.katex *{-ms-high-contrast-adjust:none!important;border-color:currentColor}.katex .katex-version:after{content:"0.16.47"}.katex .katex-mathml{border:0;-webkit-clip-path:inset(50%);clip-path:inset(50%);height:1px;overflow:hidden;padding:0;position:absolute;width:1px}.katex .katex-html>.newline{display:block}.katex .base{position:relative;white-space:nowrap;width:-webkit-min-content;width:-moz-min-content;width:min-content}.katex .base,.katex .strut{display:inline-block}.katex .textbf{font-weight:700}.katex .textit{font-style:italic}.katex .textrm{font-family:KaTeX_Main}.katex .textsf{font-family:KaTeX_SansSerif}.katex .texttt{font-family:KaTeX_Typewriter}.katex .mathnormal{font-family:KaTeX_Math;font-style:italic}.katex .mathit{font-family:KaTeX_Main;font-style:italic}.katex .mathrm{font-style:normal}.katex .mathbf{font-family:KaTeX_Main;font-weight:700}.katex .boldsymbol{font-family:KaTeX_Math;font-style:italic;font-weight:700}.katex .amsrm,.katex .mathbb,.katex .textbb{font-family:KaTeX_AMS}.katex .mathcal{font-family:KaTeX_Caligraphic}.katex .mathfrak,.katex .textfrak{font-family:KaTeX_Fraktur}.katex .mathboldfrak,.katex .textboldfrak{font-family:KaTeX_Fraktur;font-weight:700}.katex .mathtt{font-family:KaTeX_Typewriter}.katex .mathscr,.katex .textscr{font-family:KaTeX_Script}.katex .mathsf,.katex .textsf{font-family:KaTeX_SansSerif}.katex .mathboldsf,.katex .textboldsf{font-family:KaTeX_SansSerif;font-weight:700}.katex .mathitsf,.katex .mathsfit,.katex .textitsf{font-family:KaTeX_SansSerif;font-style:italic}.katex .mainrm{font-family:KaTeX_Main;font-style:normal}.katex .vlist-t{border-collapse:collapse;display:inline-table;table-layout:fixed}.katex .vlist-r{display:table-row}.katex .vlist{display:table-cell;position:relative;vertical-align:bottom}.katex .vlist>span{display:block;height:0;position:relative}.katex .vlist>span>span{display:inline-block}.katex .vlist>span>.pstrut{overflow:hidden;width:0}.katex .vlist-t2{margin-right:-2px}.katex .vlist-s{display:table-cell;font-size:1px;min-width:2px;vertical-align:bottom;width:2px}.katex .vbox{align-items:baseline;display:inline-flex;flex-direction:column}.katex .hbox{width:100%}.katex .hbox,.katex .thinbox{display:inline-flex;flex-direction:row}.katex .thinbox{max-width:0;width:0}.katex .msupsub{text-align:left}.katex .mfrac>span>span{text-align:center}.katex .mfrac .frac-line{border-bottom-style:solid;display:inline-block;width:100%}.katex .hdashline,.katex .hline,.katex .mfrac .frac-line,.katex .overline .overline-line,.katex .rule,.katex .underline .underline-line{min-height:1px}.katex .mspace{display:inline-block}.katex .smash{display:inline;line-height:0}.katex .clap,.katex .llap,.katex .rlap{position:relative;width:0}.katex .clap>.inner,.katex .llap>.inner,.katex .rlap>.inner{position:absolute}.katex .clap>.fix,.katex .llap>.fix,.katex .rlap>.fix{display:inline-block}.katex .llap>.inner{right:0}.katex .clap>.inner,.katex .rlap>.inner{left:0}.katex .clap>.inner>span{margin-left:-50%;margin-right:50%}.katex .rule{border:0 solid;display:inline-block;position:relative}.katex .hline,.katex .overline .overline-line,.katex .underline .underline-line{border-bottom-style:solid;display:inline-block;width:100%}.katex .hdashline{border-bottom-style:dashed;display:inline-block;width:100%}.katex .sqrt>.root{margin-left:.2777777778em;margin-right:-.5555555556em}.katex .fontsize-ensurer.reset-size1.size1,.katex .sizing.reset-size1.size1{font-size:1em}.katex .fontsize-ensurer.reset-size1.size2,.katex .sizing.reset-size1.size2{font-size:1.2em}.katex .fontsize-ensurer.reset-size1.size3,.katex .sizing.reset-size1.size3{font-size:1.4em}.katex .fontsize-ensurer.reset-size1.size4,.katex .sizing.reset-size1.size4{font-size:1.6em}.katex .fontsize-ensurer.reset-size1.size5,.katex .sizing.reset-size1.size5{font-size:1.8em}.katex .fontsize-ensurer.reset-size1.size6,.katex .sizing.reset-size1.size6{font-size:2em}.katex .fontsize-ensurer.reset-size1.size7,.katex .sizing.reset-size1.size7{font-size:2.4em}.katex .fontsize-ensurer.reset-size1.size8,.katex .sizing.reset-size1.size8{font-size:2.88em}.katex .fontsize-ensurer.reset-size1.size9,.katex .sizing.reset-size1.size9{font-size:3.456em}.katex .fontsize-ensurer.reset-size1.size10,.katex .sizing.reset-size1.size10{font-size:4.148em}.katex .fontsize-ensurer.reset-size1.size11,.katex .sizing.reset-size1.size11{font-size:4.976em}.katex .fontsize-ensurer.reset-size2.size1,.katex .sizing.reset-size2.size1{font-size:.8333333333em}.katex .fontsize-ensurer.reset-size2.size2,.katex .sizing.reset-size2.size2{font-size:1em}.katex .fontsize-ensurer.reset-size2.size3,.katex .sizing.reset-size2.size3{font-size:1.1666666667em}.katex .fontsize-ensurer.reset-size2.size4,.katex .sizing.reset-size2.size4{font-size:1.3333333333em}.katex .fontsize-ensurer.reset-size2.size5,.katex .sizing.reset-size2.size5{font-size:1.5em}.katex .fontsize-ensurer.reset-size2.size6,.katex .sizing.reset-size2.size6{font-size:1.6666666667em}.katex .fontsize-ensurer.reset-size2.size7,.katex .sizing.reset-size2.size7{font-size:2em}.katex .fontsize-ensurer.reset-size2.size8,.katex .sizing.reset-size2.size8{font-size:2.4em}.katex .fontsize-ensurer.reset-size2.size9,.katex .sizing.reset-size2.size9{font-size:2.88em}.katex .fontsize-ensurer.reset-size2.size10,.katex .sizing.reset-size2.size10{font-size:3.4566666667em}.katex .fontsize-ensurer.reset-size2.size11,.katex .sizing.reset-size2.size11{font-size:4.1466666667em}.katex .fontsize-ensurer.reset-size3.size1,.katex .sizing.reset-size3.size1{font-size:.7142857143em}.katex .fontsize-ensurer.reset-size3.size2,.katex .sizing.reset-size3.size2{font-size:.8571428571em}.katex .fontsize-ensurer.reset-size3.size3,.katex .sizing.reset-size3.size3{font-size:1em}.katex .fontsize-ensurer.reset-size3.size4,.katex .sizing.reset-size3.size4{font-size:1.1428571429em}.katex .fontsize-ensurer.reset-size3.size5,.katex .sizing.reset-size3.size5{font-size:1.2857142857em}.katex .fontsize-ensurer.reset-size3.size6,.katex .sizing.reset-size3.size6{font-size:1.4285714286em}.katex .fontsize-ensurer.reset-size3.size7,.katex .sizing.reset-size3.size7{font-size:1.7142857143em}.katex .fontsize-ensurer.reset-size3.size8,.katex .sizing.reset-size3.size8{font-size:2.0571428571em}.katex .fontsize-ensurer.reset-size3.size9,.katex .sizing.reset-size3.size9{font-size:2.4685714286em}.katex .fontsize-ensurer.reset-size3.size10,.katex .sizing.reset-size3.size10{font-size:2.9628571429em}.katex .fontsize-ensurer.reset-size3.size11,.katex .sizing.reset-size3.size11{font-size:3.5542857143em}.katex .fontsize-ensurer.reset-size4.size1,.katex .sizing.reset-size4.size1{font-size:.625em}.katex .fontsize-ensurer.reset-size4.size2,.katex .sizing.reset-size4.size2{font-size:.75em}.katex .fontsize-ensurer.reset-size4.size3,.katex .sizing.reset-size4.size3{font-size:.875em}.katex .fontsize-ensurer.reset-size4.size4,.katex .sizing.reset-size4.size4{font-size:1em}.katex .fontsize-ensurer.reset-size4.size5,.katex .sizing.reset-size4.size5{font-size:1.125em}.katex .fontsize-ensurer.reset-size4.size6,.katex .sizing.reset-size4.size6{font-size:1.25em}.katex .fontsize-ensurer.reset-size4.size7,.katex .sizing.reset-size4.size7{font-size:1.5em}.katex .fontsize-ensurer.reset-size4.size8,.katex .sizing.reset-size4.size8{font-size:1.8em}.katex .fontsize-ensurer.reset-size4.size9,.katex .sizing.reset-size4.size9{font-size:2.16em}.katex .fontsize-ensurer.reset-size4.size10,.katex .sizing.reset-size4.size10{font-size:2.5925em}.katex .fontsize-ensurer.reset-size4.size11,.katex .sizing.reset-size4.size11{font-size:3.11em}.katex .fontsize-ensurer.reset-size5.size1,.katex .sizing.reset-size5.size1{font-size:.5555555556em}.katex .fontsize-ensurer.reset-size5.size2,.katex .sizing.reset-size5.size2{font-size:.6666666667em}.katex .fontsize-ensurer.reset-size5.size3,.katex .sizing.reset-size5.size3{font-size:.7777777778em}.katex .fontsize-ensurer.reset-size5.size4,.katex .sizing.reset-size5.size4{font-size:.8888888889em}.katex .fontsize-ensurer.reset-size5.size5,.katex .sizing.reset-size5.size5{font-size:1em}.katex .fontsize-ensurer.reset-size5.size6,.katex .sizing.reset-size5.size6{font-size:1.1111111111em}.katex .fontsize-ensurer.reset-size5.size7,.katex .sizing.reset-size5.size7{font-size:1.3333333333em}.katex .fontsize-ensurer.reset-size5.size8,.katex .sizing.reset-size5.size8{font-size:1.6em}.katex .fontsize-ensurer.reset-size5.size9,.katex .sizing.reset-size5.size9{font-size:1.92em}.katex .fontsize-ensurer.reset-size5.size10,.katex .sizing.reset-size5.size10{font-size:2.3044444444em}.katex .fontsize-ensurer.reset-size5.size11,.katex .sizing.reset-size5.size11{font-size:2.7644444444em}.katex .fontsize-ensurer.reset-size6.size1,.katex .sizing.reset-size6.size1{font-size:.5em}.katex .fontsize-ensurer.reset-size6.size2,.katex .sizing.reset-size6.size2{font-size:.6em}.katex .fontsize-ensurer.reset-size6.size3,.katex .sizing.reset-size6.size3{font-size:.7em}.katex .fontsize-ensurer.reset-size6.size4,.katex .sizing.reset-size6.size4{font-size:.8em}.katex .fontsize-ensurer.reset-size6.size5,.katex .sizing.reset-size6.size5{font-size:.9em}.katex .fontsize-ensurer.reset-size6.size6,.katex .sizing.reset-size6.size6{font-size:1em}.katex .fontsize-ensurer.reset-size6.size7,.katex .sizing.reset-size6.size7{font-size:1.2em}.katex .fontsize-ensurer.reset-size6.size8,.katex .sizing.reset-size6.size8{font-size:1.44em}.katex .fontsize-ensurer.reset-size6.size9,.katex .sizing.reset-size6.size9{font-size:1.728em}.katex .fontsize-ensurer.reset-size6.size10,.katex .sizing.reset-size6.size10{font-size:2.074em}.katex .fontsize-ensurer.reset-size6.size11,.katex .sizing.reset-size6.size11{font-size:2.488em}.katex .fontsize-ensurer.reset-size7.size1,.katex .sizing.reset-size7.size1{font-size:.4166666667em}.katex .fontsize-ensurer.reset-size7.size2,.katex .sizing.reset-size7.size2{font-size:.5em}.katex .fontsize-ensurer.reset-size7.size3,.katex .sizing.reset-size7.size3{font-size:.5833333333em}.katex .fontsize-ensurer.reset-size7.size4,.katex .sizing.reset-size7.size4{font-size:.6666666667em}.katex .fontsize-ensurer.reset-size7.size5,.katex .sizing.reset-size7.size5{font-size:.75em}.katex .fontsize-ensurer.reset-size7.size6,.katex .sizing.reset-size7.size6{font-size:.8333333333em}.katex .fontsize-ensurer.reset-size7.size7,.katex .sizing.reset-size7.size7{font-size:1em}.katex .fontsize-ensurer.reset-size7.size8,.katex .sizing.reset-size7.size8{font-size:1.2em}.katex .fontsize-ensurer.reset-size7.size9,.katex .sizing.reset-size7.size9{font-size:1.44em}.katex .fontsize-ensurer.reset-size7.size10,.katex .sizing.reset-size7.size10{font-size:1.7283333333em}.katex .fontsize-ensurer.reset-size7.size11,.katex .sizing.reset-size7.size11{font-size:2.0733333333em}.katex .fontsize-ensurer.reset-size8.size1,.katex .sizing.reset-size8.size1{font-size:.3472222222em}.katex .fontsize-ensurer.reset-size8.size2,.katex .sizing.reset-size8.size2{font-size:.4166666667em}.katex .fontsize-ensurer.reset-size8.size3,.katex .sizing.reset-size8.size3{font-size:.4861111111em}.katex .fontsize-ensurer.reset-size8.size4,.katex .sizing.reset-size8.size4{font-size:.5555555556em}.katex .fontsize-ensurer.reset-size8.size5,.katex .sizing.reset-size8.size5{font-size:.625em}.katex .fontsize-ensurer.reset-size8.size6,.katex .sizing.reset-size8.size6{font-size:.6944444444em}.katex .fontsize-ensurer.reset-size8.size7,.katex .sizing.reset-size8.size7{font-size:.8333333333em}.katex .fontsize-ensurer.reset-size8.size8,.katex .sizing.reset-size8.size8{font-size:1em}.katex .fontsize-ensurer.reset-size8.size9,.katex .sizing.reset-size8.size9{font-size:1.2em}.katex .fontsize-ensurer.reset-size8.size10,.katex .sizing.reset-size8.size10{font-size:1.4402777778em}.katex .fontsize-ensurer.reset-size8.size11,.katex .sizing.reset-size8.size11{font-size:1.7277777778em}.katex .fontsize-ensurer.reset-size9.size1,.katex .sizing.reset-size9.size1{font-size:.2893518519em}.katex .fontsize-ensurer.reset-size9.size2,.katex .sizing.reset-size9.size2{font-size:.3472222222em}.katex .fontsize-ensurer.reset-size9.size3,.katex .sizing.reset-size9.size3{font-size:.4050925926em}.katex .fontsize-ensurer.reset-size9.size4,.katex .sizing.reset-size9.size4{font-size:.462962963em}.katex .fontsize-ensurer.reset-size9.size5,.katex .sizing.reset-size9.size5{font-size:.5208333333em}.katex .fontsize-ensurer.reset-size9.size6,.katex .sizing.reset-size9.size6{font-size:.5787037037em}.katex .fontsize-ensurer.reset-size9.size7,.katex .sizing.reset-size9.size7{font-size:.6944444444em}.katex .fontsize-ensurer.reset-size9.size8,.katex .sizing.reset-size9.size8{font-size:.8333333333em}.katex .fontsize-ensurer.reset-size9.size9,.katex .sizing.reset-size9.size9{font-size:1em}.katex .fontsize-ensurer.reset-size9.size10,.katex .sizing.reset-size9.size10{font-size:1.2002314815em}.katex .fontsize-ensurer.reset-size9.size11,.katex .sizing.reset-size9.size11{font-size:1.4398148148em}.katex .fontsize-ensurer.reset-size10.size1,.katex .sizing.reset-size10.size1{font-size:.2410800386em}.katex .fontsize-ensurer.reset-size10.size2,.katex .sizing.reset-size10.size2{font-size:.2892960463em}.katex .fontsize-ensurer.reset-size10.size3,.katex .sizing.reset-size10.size3{font-size:.337512054em}.katex .fontsize-ensurer.reset-size10.size4,.katex .sizing.reset-size10.size4{font-size:.3857280617em}.katex .fontsize-ensurer.reset-size10.size5,.katex .sizing.reset-size10.size5{font-size:.4339440694em}.katex .fontsize-ensurer.reset-size10.size6,.katex .sizing.reset-size10.size6{font-size:.4821600771em}.katex .fontsize-ensurer.reset-size10.size7,.katex .sizing.reset-size10.size7{font-size:.5785920926em}.katex .fontsize-ensurer.reset-size10.size8,.katex .sizing.reset-size10.size8{font-size:.6943105111em}.katex .fontsize-ensurer.reset-size10.size9,.katex .sizing.reset-size10.size9{font-size:.8331726133em}.katex .fontsize-ensurer.reset-size10.size10,.katex .sizing.reset-size10.size10{font-size:1em}.katex .fontsize-ensurer.reset-size10.size11,.katex .sizing.reset-size10.size11{font-size:1.1996142719em}.katex .fontsize-ensurer.reset-size11.size1,.katex .sizing.reset-size11.size1{font-size:.2009646302em}.katex .fontsize-ensurer.reset-size11.size2,.katex .sizing.reset-size11.size2{font-size:.2411575563em}.katex .fontsize-ensurer.reset-size11.size3,.katex .sizing.reset-size11.size3{font-size:.2813504823em}.katex .fontsize-ensurer.reset-size11.size4,.katex .sizing.reset-size11.size4{font-size:.3215434084em}.katex .fontsize-ensurer.reset-size11.size5,.katex .sizing.reset-size11.size5{font-size:.3617363344em}.katex .fontsize-ensurer.reset-size11.size6,.katex .sizing.reset-size11.size6{font-size:.4019292605em}.katex .fontsize-ensurer.reset-size11.size7,.katex .sizing.reset-size11.size7{font-size:.4823151125em}.katex .fontsize-ensurer.reset-size11.size8,.katex .sizing.reset-size11.size8{font-size:.578778135em}.katex .fontsize-ensurer.reset-size11.size9,.katex .sizing.reset-size11.size9{font-size:.6945337621em}.katex .fontsize-ensurer.reset-size11.size10,.katex .sizing.reset-size11.size10{font-size:.8336012862em}.katex .fontsize-ensurer.reset-size11.size11,.katex .sizing.reset-size11.size11{font-size:1em}.katex .delimsizing.size1{font-family:KaTeX_Size1}.katex .delimsizing.size2{font-family:KaTeX_Size2}.katex .delimsizing.size3{font-family:KaTeX_Size3}.katex .delimsizing.size4{font-family:KaTeX_Size4}.katex .delimsizing.mult .delim-size1>span{font-family:KaTeX_Size1}.katex .delimsizing.mult .delim-size4>span{font-family:KaTeX_Size4}.katex .nulldelimiter{display:inline-block;width:.12em}.katex .delimcenter,.katex .op-symbol{position:relative}.katex .op-symbol.small-op{font-family:KaTeX_Size1}.katex .op-symbol.large-op{font-family:KaTeX_Size2}.katex .accent>.vlist-t,.katex .op-limits>.vlist-t{text-align:center}.katex .accent .accent-body{position:relative}.katex .accent .accent-body:not(.accent-full){width:0}.katex .overlay{display:block}.katex .mtable .vertical-separator{display:inline-block;min-width:1px}.katex .mtable .arraycolsep{display:inline-block}.katex .mtable .col-align-c>.vlist-t{text-align:center}.katex .mtable .col-align-l>.vlist-t{text-align:left}.katex .mtable .col-align-r>.vlist-t{text-align:right}.katex .svg-align{text-align:left}.katex svg{fill:currentColor;stroke:currentColor;display:block;height:inherit;position:absolute;width:100%}.katex svg path{stroke:none}.katex svg{fill-rule:nonzero;fill-opacity:1;stroke-width:1;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1}.katex img{border-style:none;max-height:none;max-width:none;min-height:0;min-width:0}.katex .stretchy{display:block;overflow:hidden;position:relative;width:100%}.katex .stretchy:after,.katex .stretchy:before{content:""}.katex .hide-tail{overflow:hidden;position:relative;width:100%}.katex .halfarrow-left{left:0;overflow:hidden;position:absolute;width:50.2%}.katex .halfarrow-right{overflow:hidden;position:absolute;right:0;width:50.2%}.katex .brace-left{left:0;overflow:hidden;position:absolute;width:25.1%}.katex .brace-center{left:25%;overflow:hidden;position:absolute;width:50%}.katex .brace-right{overflow:hidden;position:absolute;right:0;width:25.1%}.katex .x-arrow-pad{padding:0 .5em}.katex .cd-arrow-pad{padding:0 .55556em 0 .27778em}.katex .mover,.katex .munder,.katex .x-arrow{text-align:center}.katex .boxpad{padding:0 .3em}.katex .fbox,.katex .fcolorbox{border:.04em solid;box-sizing:border-box}.katex .cancel-pad{padding:0 .2em}.katex .cancel-lap{margin-left:-.2em;margin-right:-.2em}.katex .sout{border-bottom-style:solid;border-bottom-width:.08em}.katex .angl{border-right:.049em solid;border-top:.049em solid;box-sizing:border-box;margin-right:.03889em}.katex .anglpad{padding:0 .03889em}.katex .eqn-num:before{content:"(" counter(katexEqnNo) ")";counter-increment:katexEqnNo}.katex .mml-eqn-num:before{content:"(" counter(mmlEqnNo) ")";counter-increment:mmlEqnNo}.katex .mtr-glue{width:50%}.katex .cd-vert-arrow{display:inline-block;position:relative}.katex .cd-label-left{display:inline-block;position:absolute;right:calc(50% + .3em);text-align:left}.katex .cd-label-right{display:inline-block;left:calc(50% + .3em);position:absolute;text-align:right}.katex-display{display:block;margin:1em 0;text-align:center}.katex-display>.katex{display:block;text-align:center;white-space:nowrap}.katex-display>.katex>.katex-html{display:block;position:relative}.katex-display>.katex>.katex-html>.tag{position:absolute;right:0}.katex-display.leqno>.katex>.katex-html>.tag{left:0;right:auto}.katex-display.fleqn>.katex{padding-left:2em;text-align:left}body{counter-reset:katexEqnNo mmlEqnNo}:root{font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Microsoft YaHei,sans-serif;color:#243c33;background:#f7f8f4;font-synthesis:none;font-weight:400;--ink:#243c33;--green:#2d624c;--muted:#79867e;--line:#e4e9e2;--soft:#edf3ec;--paper:#fff}*{box-sizing:border-box}body{margin:0}button,input{font:inherit}button{cursor:pointer;transition:background .16s,border-color .16s,box-shadow .16s}button:disabled{opacity:.42;cursor:not-allowed}button:focus-visible,input:focus-visible,a:focus-visible{outline:3px solid #83b69c;outline-offset:3px}button svg{flex-shrink:0}a{color:inherit}section[hidden]{display:none!important}button{color:inherit}button:not(:disabled):hover{filter:brightness(.97)}.app-header{height:76px;padding:0 max(28px,calc((100vw - 1360px)/2));display:flex;align-items:center;justify-content:space-between;gap:24px;background:#fff;border-bottom:1px solid var(--line)}.brand{display:flex;align-items:center;gap:11px;text-decoration:none;white-space:nowrap}.logo{height:37px;width:37px;background:var(--green);color:#fff;border-radius:11px;display:grid;place-items:center}.brand b{font-size:23px;letter-spacing:-1px}.brand-dot{color:#75a086}.brand-tag{font-size:12px;color:var(--muted);border-left:1px solid var(--line);margin-left:7px;padding-left:18px;letter-spacing:1px}.subtle{display:flex;align-items:center;gap:16px}.subtle button{display:inline-flex;align-items:center;gap:7px;border:0;background:transparent;font-size:13px;padding:9px 0;color:#51685a}.count{background:var(--soft);border-radius:6px;padding:1px 6px;font-size:11px}.account-email{max-width:170px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:12px;color:#8c978f}.subtle button:last-child{border-left:1px solid var(--line);padding-left:16px}.workspace-intro{max-width:1360px;margin:0 auto;padding:34px 28px 27px;display:flex;align-items:center;justify-content:space-between;gap:24px}.eyebrow{display:flex;align-items:center;gap:8px;color:#7c8c7e;font-size:11px;letter-spacing:2px}.eyebrow>span,.status-dot{display:inline-block;width:6px;height:6px;border-radius:50%;background:#84a68b;flex-shrink:0}.workspace-intro h1{font-size:30px;font-weight:650;letter-spacing:-.8px;line-height:1.45;margin:10px 0 8px}.workspace-intro h1>span{color:#6b8974}.workspace-intro p{font-size:13px;color:var(--muted);margin:0}.intro-note{display:flex;align-items:center;gap:12px;color:#80927e;font-size:12px}.intro-note small{display:block;font-size:10px;letter-spacing:2px;margin-top:7px;color:#9aa497}main{max-width:1360px;margin:0 auto;padding:0 28px 38px;display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,1fr);align-items:start;gap:24px}.question-section,.answer-section{min-width:0;background:var(--paper);border:1px solid var(--line);border-radius:18px;padding:23px;box-shadow:0 5px 22px #203d2e03}.heading{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:22px}.section-title{display:flex;align-items:center;gap:12px}.step-number{display:grid;place-items:center;height:34px;width:34px;background:#f0f4ed;border:1px solid #e6ecdf;border-radius:10px;color:#6b866c;font-size:11px;font-weight:650;font-variant-numeric:tabular-nums}.heading h2{font-size:17px;line-height:1.5;margin:0 0 3px;font-weight:650}.heading p{font-size:11px;color:#8a958c;margin:0}.section-symbol{color:#99aa97}.answer-status{display:flex;align-items:center;gap:6px;white-space:nowrap;font-size:10px;color:#8d998e;background:#f6f8f3;padding:6px 9px;border-radius:20px}.working{background:#b99852;animation:pulse 1.4s ease-in-out infinite}@keyframes pulse{50%{opacity:.3}}.board-topline{display:flex;align-items:center;justify-content:space-between;gap:8px;margin:0 0 11px;font-size:11px;color:#80917f}.board-topline>span{display:flex;align-items:center;gap:7px}.board-topline>div{display:flex;gap:6px}.board-topline button{display:inline-flex;align-items:center;gap:6px;border:1px solid var(--line);border-radius:7px;padding:7px 9px;background:#fff;color:#60725f;font-size:11px}.board{height:clamp(300px,39vh,410px);position:relative;overflow:hidden;border:1px solid #e3e9df;border-radius:12px;background-color:#fdfefa;background-image:radial-gradient(#d7dfd4 .7px,transparent .7px);background-size:20px 20px}.board canvas{position:absolute;top:0;right:0;bottom:0;left:0;width:100%;height:100%;touch-action:none;z-index:1;cursor:crosshair;display:block}.placeholder{position:absolute;top:0;right:16px;bottom:60px;left:16px;display:flex;align-items:center;justify-content:center;flex-direction:column;gap:10px;color:#a5b3a1;text-align:center;pointer-events:none}.placeholder>svg{color:#a3b59a;margin-bottom:5px}.placeholder b{font-size:16px;font-weight:500;color:#93a48f}.placeholder>span{font-size:11px;color:#a2ae9c}.placeholder small{font-size:10px;color:#b3bcad;margin-top:3px}.board nav{position:absolute;z-index:3;bottom:12px;left:50%;transform:translate(-50%);display:flex;align-items:center;gap:3px;padding:5px;background:#fffffff2;border:1px solid #e5eadf;box-shadow:0 4px 18px #2b432310;border-radius:10px;max-width:calc(100% - 16px);overflow-x:auto;white-space:nowrap}.board nav button{border:0;background:transparent;color:#82917d;border-radius:6px;display:inline-flex;align-items:center;justify-content:center;gap:5px;padding:9px;font-size:11px;flex-shrink:0;min-width:33px;min-height:35px}.board nav button.on{background:#eaf2e5;color:#42673a}.board nav button:nth-child(3){border-left:1px solid var(--line);border-radius:0;margin-left:3px}.modeheading{display:flex;justify-content:space-between;gap:10px;font-size:12px;font-weight:600;margin:21px 0 11px}.modeheading small{font-size:10px;color:#99a393;font-weight:400}.modes{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}.modes button{position:relative;text-align:left;display:flex;align-items:center;gap:11px;padding:12px;border:1px solid var(--line);border-radius:9px;background:#fff;color:#81917e;min-height:68px}.modes button b{display:block;color:#61745c;font-size:12px;font-weight:550}.modes button small{display:block;font-size:10px;color:#a0aa99;margin-top:4px}.modes button.active{background:#f0f5e9;border-color:#9db38a}.modes button.active b,.modes button.active>svg{color:#4c693f}.mode-check{position:absolute;right:9px;top:9px}.modes button>span{padding-right:7px}.primary{display:flex;align-items:center;justify-content:center;gap:9px;width:100%;min-height:46px;background:var(--green);color:#fff;border:1px solid var(--green);border-radius:9px;margin-top:17px;font-size:13px;font-weight:550;box-shadow:0 3px 7px #264e3210}.primary>svg:last-child{margin-left:auto}.primary>svg:first-child{margin-right:auto}.primary{padding:0 17px}.primary:disabled{opacity:1;background:#e7ede1;border-color:#e0e8d9;color:#9aa88f;box-shadow:none}.answer-section{min-height:710px;display:flex;flex-direction:column}.answer{min-width:0;flex:1}.empty{min-height:590px;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:28px 8px}.empty-illustration{position:relative;display:flex;align-items:center;justify-content:center;width:132px;height:124px;color:#91a982;background:#f3f6ed;border-radius:50% 47% 44% 50%;margin-bottom:24px}.math-doodle{position:absolute;left:0;top:9px;transform:rotate(-12deg);font:italic 17px Georgia,serif;color:#93a782;background:#fffdf7;border:1px solid #e6e9dc;border-radius:6px;padding:7px 9px;box-shadow:0 4px 12px #30432108}.empty-spark{position:absolute;right:7px;bottom:17px;color:#a1b68d}.empty h3{font-size:16px;font-weight:550;margin:0 0 11px;color:#5a7151}.empty p{font-size:12px;color:#9ba591;line-height:1.9;margin:0}.empty-tags{display:flex;align-items:center;gap:9px;margin-top:27px;color:#9aab8d;font-size:10px}.empty-tags>span{background:#f6f8f1;border:1px solid #edf0e6;border-radius:5px;padding:5px 7px}.rendered-answer{font-size:14px;line-height:1.95;color:#425147;overflow-wrap:anywhere;min-width:0}.rendered-answer>:first-child{margin-top:0}.rendered-answer p{margin:0 0 15px}.rendered-answer h1,.rendered-answer h2,.rendered-answer h3,.rendered-answer h4{line-height:1.6;color:#2e4c3a;margin:27px 0 13px;font-weight:650;font-size:16px}.rendered-answer h1,.rendered-answer h2{font-size:18px}.rendered-answer h3{display:flex;gap:8px;align-items:baseline}.rendered-answer h3:before{content:"";display:block;flex-shrink:0;width:3px;height:13px;background:#8eaa74;border-radius:3px}.rendered-answer strong{font-weight:650;color:#365238}.rendered-answer hr{border:0;border-top:1px solid var(--line);margin:25px 0}.rendered-answer ul,.rendered-answer ol{padding-left:23px}.rendered-answer li{padding-left:3px;margin:5px 0}.rendered-answer blockquote{border-left:3px solid #a9bc91;background:#f5f8ef;margin:18px 0;padding:14px 16px;border-radius:0 8px 8px 0}.rendered-answer blockquote p:last-child{margin-bottom:0}.rendered-answer .katex{font-size:1.12em}.rendered-answer .katex-display{display:block;max-width:100%;overflow-x:auto;overflow-y:hidden;margin:17px 0 22px;padding:17px 12px;background:#f5f7f0;border:1px solid #e8eddf;border-radius:9px;color:#314b34;scrollbar-width:thin}.rendered-answer .katex-display>.katex{white-space:nowrap}.rendered-answer pre{max-width:100%;overflow-x:auto;background:#f4f6f0;border:1px solid var(--line);padding:14px;border-radius:8px;font:12px/1.7 ui-monospace,SFMono-Regular,monospace;white-space:pre}.rendered-answer code{font-family:ui-monospace,SFMono-Regular,monospace;font-size:.9em;background:#f0f3eb;padding:2px 4px;border-radius:4px}.rendered-answer pre code{padding:0;background:none}.rendered-answer img{max-width:100%}.rendered-answer table{display:block;max-width:100%;overflow-x:auto;border-collapse:collapse;font-size:12px;margin:17px 0}.rendered-answer th,.rendered-answer td{padding:10px;border:1px solid var(--line)}.rendered-answer th{background:#f4f7ed}.answer-actions{display:flex;justify-content:flex-end;gap:8px;margin-top:17px;padding-top:15px;border-top:1px solid var(--line)}.answer-actions button,.history-actions button,.stop-button{display:inline-flex;align-items:center;justify-content:center;gap:6px;border:1px solid var(--line);background:#fff;padding:8px 10px;border-radius:7px;font-size:11px;color:#728369}.follow-form{display:flex;gap:6px;border:1px solid #dce5d4;border-radius:9px;padding:6px;background:#fafbf7;margin-top:13px}.follow-form input{min-width:0;flex:1;border:0;outline:0;background:transparent;font-size:12px;padding:8px;color:var(--ink)}.follow-form button{display:grid;place-items:center;border:0;border-radius:7px;background:var(--green);color:#fff;min-width:35px}.generation-controls{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-top:12px;font-size:12px;color:#829179}.guide-flow{display:flex;flex-direction:column;gap:18px}.guide-step{min-width:0;border-bottom:1px solid var(--line);padding:0 0 20px}.guide-step:last-child{border-bottom:0;padding-bottom:0}.guide-meta{display:flex;justify-content:space-between;gap:8px;font-size:10px;color:#7d9271;letter-spacing:.5px;margin-bottom:17px}.guide-feedback{background:#f0f6e9;border-radius:8px;padding:12px;font-size:13px}.guide-question{font-weight:550;color:#3c5735}.guide-summary{background:#f1f6e9;padding:15px;border-radius:9px}.guide-answer-form{display:flex;flex-direction:column;gap:12px;width:100%;max-width:640px;min-width:0;padding:6px;margin-top:12px}.guide-options{min-width:0;max-width:100%;padding:0;margin:0;border:0}.guide-options legend{padding:0;margin-bottom:9px;font-size:11px;color:#8a9c7e}.guide-option-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,220px),1fr));gap:8px}.guide-option{position:relative;display:flex;align-items:flex-start;gap:9px;min-width:0;min-height:48px;padding:11px;border:1px solid #e0e8d8;border-radius:8px;background:#fff;cursor:pointer}.guide-option.selected{background:#f0f6e9;border-color:#9db98c}.guide-option:focus-within{outline:2px solid #83b69c;outline-offset:2px}.option-letter{flex-shrink:0;display:grid;place-items:center;width:24px;height:24px;border:1px solid #dfe8d5;border-radius:6px;font-size:11px;color:#7b906c;background:#f7f9f2}.guide-option .rendered-answer{flex:1;min-width:0;font-size:13px;line-height:1.8}.guide-option .rendered-answer p{margin:0}.guide-option .katex-display{margin:4px 0;padding:7px}.guide-option-check{flex-shrink:0;color:#5d8c50;margin-top:4px}.guide-answer-form textarea{display:block;width:100%;max-width:100%;min-width:0;min-height:64px;max-height:144px;overflow-y:auto;resize:vertical;box-sizing:border-box;padding:10px 12px;border:1px solid #dce5d3;border-radius:8px;background:#fcfdf9;color:var(--ink);font:inherit;font-size:14px;line-height:1.6;overflow-wrap:anywhere}.guide-answer-form textarea:focus-visible{outline:2px solid #83b69c;outline-offset:2px}.guide-answer-form textarea::placeholder{color:#a0ab96}.guide-response-actions{display:flex;justify-content:space-between;align-items:center;gap:12px;min-width:0}.guide-response-note{font-size:10px;color:#95a388}.guide-response-actions>button{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:38px;flex-shrink:0;padding:9px 14px;border:0;border-radius:8px;background:var(--green);color:#fff;font-size:12px}.guide-answer-form .guide-request-choices{display:inline-flex;align-items:center;align-self:flex-start;gap:6px;min-height:34px;padding:7px 11px;border:1px solid #dce6d3;border-radius:7px;background:#f6f9f1;color:#6e875f;font-size:12px}.history-layout{grid-template-columns:minmax(0,.85fr) minmax(0,1.15fr)}.history-panel{min-width:0;background:#fff;border:1px solid var(--line);border-radius:18px;padding:23px;max-height:78vh;overflow-y:auto}.history-entry{display:flex;align-items:center;justify-content:space-between;gap:12px;border-top:1px solid var(--line);padding:17px 0}.history-entry strong{font-size:12px;font-weight:550}.history-entry p{font-size:11px;color:#8a987f;line-height:1.7;overflow-wrap:anywhere}.history-actions{display:flex;gap:6px}.history-panel>p{font-size:13px;color:var(--muted);line-height:1.9}.cloud-error{margin:12px auto;max-width:1304px;padding:12px 16px;border:1px solid #e6c7b4;background:#fff8f0;color:#936747;border-radius:9px;display:flex;justify-content:space-between;gap:12px;font-size:12px;line-height:1.7}.cloud-error button{border:0;background:transparent;color:inherit;white-space:nowrap}.photo-layer{position:absolute;top:0;right:0;bottom:0;left:0;z-index:0;pointer-events:none;background:#fff;padding:12px 12px 74px;display:flex;align-items:center;justify-content:center}.photo-layer img{width:100%;height:100%;object-fit:contain}.photo-error{font-size:12px;color:#aa6447}.photo-hint{font-size:12px;color:#6b8961}.visually-hidden{position:absolute!important;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}footer{max-width:1360px;margin:0 auto;padding:18px 28px 25px;display:flex;justify-content:space-between;gap:16px;color:#a4ad9d;font-size:10px;border-top:1px solid var(--line)}.footer-brand{color:#8d9f82;letter-spacing:.5px}.auth-shell{min-height:100dvh;display:grid;place-items:center;padding:20px;background:#f5f7f4}.auth-card{width:min(100%,400px);background:#fff;padding:36px;border:1px solid var(--line);border-radius:22px;box-shadow:0 12px 48px #152c2110;display:flex;flex-direction:column;gap:16px}.auth-card h1{margin:0;color:#234639}.auth-card h2{margin:0}.auth-card p{color:#63766c;font-size:14px;line-height:1.7}.auth-card input{width:100%;padding:14px;border:1px solid #dce4de;border-radius:10px;font-size:16px;min-width:0}.auth-card>.primary{margin:0;min-height:48px}.auth-switch{display:flex;justify-content:space-between;gap:12px}.auth-switch button{border:0;background:transparent;color:#27684f;font-size:13px;padding:8px 0}@media (min-width:1500px){.board{height:410px}.answer-section{min-height:770px}.empty{min-height:650px}}@media (max-width:1050px){.brand-tag,.intro-note{display:none}.account-email{max-width:120px}.workspace-intro{padding-top:28px}.question-section,.answer-section{padding:19px}.modes button{gap:8px;padding:10px}.modes button small{font-size:9px}.heading h2{font-size:16px}.answer-status{font-size:9px}}@media (max-width:850px){.app-header{height:64px;padding:0 18px;gap:12px}.brand b{font-size:21px}.logo{width:33px;height:33px}.subtle{gap:13px}.account-email,.logout-label{display:none}.subtle button{font-size:11px}.subtle button:last-child{padding-left:12px}.workspace-intro{padding:25px 18px 22px}.workspace-intro h1{font-size:25px;letter-spacing:-.6px}.workspace-intro p{font-size:12px}.eyebrow{font-size:10px;letter-spacing:1px}main,.history-layout{grid-template-columns:minmax(0,1fr);padding:0 16px 26px;gap:18px}.question-section,.answer-section{padding:18px;border-radius:14px}.board{height:clamp(280px,43dvh,420px)}.answer-section{min-height:360px;scroll-margin-top:16px}.empty{min-height:310px;padding:25px 0}.empty-illustration{width:104px;height:100px;margin-bottom:20px}.empty h3{font-size:15px}.empty p{font-size:11px}.heading{margin-bottom:18px}.modes button small{font-size:10px}.modes button{gap:10px;min-height:65px}.modeheading{margin-top:18px}.board nav button{min-height:38px}.rendered-answer{font-size:14px}.rendered-answer .katex-display{padding:15px 9px;font-size:.94em}.history-panel{max-height:none;padding:18px}.cloud-error{margin:12px 16px}footer{padding:17px 18px 22px;flex-direction:column;gap:8px;font-size:9px}.guide-answer-form textarea{font-size:16px}}@media (max-width:380px){.app-header{padding:0 13px}.brand{gap:7px}.brand b{font-size:19px}.subtle{gap:9px}.subtle button:last-child{padding-left:8px}.count{padding:1px 4px}.workspace-intro h1{font-size:22px}.question-section,.answer-section{padding:14px}.board-topline button{padding:7px;font-size:10px}.modes button{padding:9px;gap:7px}.modes button small{font-size:9px}.board nav button{padding:8px}.board nav{gap:1px}.mode-check{right:6px;top:6px}.answer-status{padding:6px}.empty-tags{gap:6px}.auth-card{padding:25px}}@media (prefers-reduced-motion:reduce){*,*:before,*:after{animation:none!important;transition:none!important;scroll-behavior:auto!important}}.app-header{height:56px;padding:0 20px}.brand b{font-size:20px}.logo{width:30px;height:30px;border-radius:9px}.logo svg{width:18px;height:18px}.subtle{gap:15px}.workspace{max-width:none;width:100%;height:calc(100dvh - 56px);padding:12px;gap:12px;grid-template-columns:minmax(0,1fr) minmax(0,1fr);align-items:stretch}.workspace:has(.history-panel){grid-template-columns:minmax(0,.75fr) minmax(0,1.25fr)}.question-section,.answer-section{display:flex;flex-direction:column;padding:16px;border-radius:12px;min-height:0;min-width:0;overflow:hidden}.heading{flex-shrink:0;margin-bottom:12px;min-height:25px}.heading h2{display:flex;align-items:center;gap:8px;font-size:13px;margin:0;color:#56704d}.heading h2 svg{color:#8da081}.board-topline{flex-shrink:0;margin-bottom:9px}.board{flex:1;height:auto;min-height:160px;border-radius:9px}.placeholder{top:0;right:10px;bottom:65px;left:10px;gap:11px}.placeholder>span{font-size:12px;color:#a4af9a}.board nav{bottom:11px}.solve-controls{display:flex;align-items:center;gap:10px;margin-top:12px;flex-shrink:0;position:relative}.solve-controls .primary{margin:0;min-height:43px;flex:1;font-size:12px}.primary>svg:first-child,.primary>svg:last-child{margin:0}.primary>svg:last-child{width:15px}.mode-picker{position:relative;flex-shrink:0}.mode-picker summary{list-style:none;min-width:134px;min-height:43px;border:1px solid #dce5d3;border-radius:8px;background:#fafcf7;display:flex;align-items:center;justify-content:space-between;gap:15px;padding:0 12px;font-size:12px;color:#59724e;cursor:pointer}.mode-picker summary::-webkit-details-marker{display:none}.mode-picker summary:focus-visible{outline:3px solid #83b69c;outline-offset:3px}.mode-picker .modes{position:absolute;bottom:calc(100% + 8px);left:0;z-index:5;width:190px;display:grid;grid-template-columns:1fr;gap:4px;padding:6px;border:1px solid #dfe7d7;border-radius:10px;background:#fff;box-shadow:0 6px 28px #2742201a}.mode-picker .modes button{min-height:39px;gap:10px;padding:9px;border:0;border-radius:6px;font-size:12px;color:#71836a}.mode-picker .modes button.active{background:#edf4e5}.mode-picker .modes button>span{padding:0;flex:1}.answer-section .answer{min-height:0;overflow:auto;overscroll-behavior:contain;padding:3px 4px 3px 0;scrollbar-width:thin}.empty{height:100%;min-height:160px;padding:20px;color:#a1b195;gap:16px}.empty p{font-size:12px;margin:0}.answer-actions{flex-shrink:0;margin-top:10px;padding-top:10px}.follow-form{flex-shrink:0;margin-top:10px}.generation-controls{flex-shrink:0}.history-panel{max-height:none;min-height:0;overflow-y:auto;border-radius:12px;padding:16px}.cloud-error{margin:8px 12px;max-width:none}.cloud-error:has(+.workspace){margin-bottom:0}body:has(>.cloud-error) .workspace{height:auto}.app-header:has(+.cloud-error)~.workspace{height:calc(100dvh - 118px)}@media (max-width:850px){.app-header{height:52px;padding:0 15px}.brand b{font-size:19px}.subtle{gap:12px}.workspace,.workspace:has(.history-panel){height:auto;min-height:calc(100dvh - 52px);grid-template-columns:minmax(0,1fr);padding:9px;gap:10px}.question-section,.answer-section{padding:12px;border-radius:10px}.question-section{height:calc(100dvh - 72px);min-height:430px}.answer-section{height:calc(100dvh - 72px);min-height:380px;scroll-margin-top:8px}.board{height:auto;min-height:220px}.heading{margin-bottom:9px}.board-topline{margin-bottom:8px}.solve-controls{gap:8px;margin-top:10px}.mode-picker summary{min-width:124px;font-size:11px}.workspace.history-layout .history-panel{max-height:60dvh}.app-header:has(+.cloud-error)~.workspace{height:auto}.cloud-error{margin:8px 9px;font-size:11px}.account-email{display:none}}@media (min-width:851px) and (max-height:600px){.question-section,.answer-section{padding:10px}.workspace{padding:8px;gap:8px}.heading{margin-bottom:7px}.board-topline{margin-bottom:6px}.solve-controls{margin-top:8px}}[hidden]{display:none!important}.taskbar{height:42px;display:flex;align-items:stretch;gap:8px;padding:6px 12px 0;background:#f7f8f4;border-bottom:1px solid var(--line)}.task-tabs{display:flex;align-items:stretch;gap:4px;min-width:0;overflow-x:auto;scrollbar-width:thin}.task-tab{display:flex;align-items:center;flex-shrink:0;border:1px solid transparent;border-bottom:0;border-radius:8px 8px 0 0;color:#8a9780}.task-tab.active{background:#fff;border-color:var(--line);color:#3d6248}.task-tab>button{display:flex;align-items:center;gap:7px;padding:7px 9px;border:0;background:transparent;white-space:nowrap;font-size:11px}.task-tab small{font-size:9px;color:#9ba58f}.task-tab .close-task{padding:7px 7px 7px 0;color:#9aaa93}.task-indicator{display:flex;color:#a6b19c}.task-indicator.done,.task-indicator.awaiting{color:#5a9966}.task-indicator.error,.task-indicator.stopped{color:#b48755}.task-indicator.running{color:#6b9661}.task-indicator.running svg{animation:task-spin 1.3s linear infinite}@keyframes task-spin{to{transform:rotate(360deg)}}.new-task{display:flex;align-items:center;justify-content:center;flex-shrink:0;gap:5px;padding:5px 10px;margin-bottom:4px;border:1px solid #dde6d4;border-radius:7px;background:#fff;font-size:11px;color:#64835b}.task-content .workspace{height:calc(100dvh - 98px)}.task-content:has(>.cloud-error) .workspace{height:calc(100dvh - 155px)}.history-view{height:calc(100dvh - 98px);padding:12px}.history-view .history-panel{height:100%}.answer-section>.cloud-error{margin:9px 0 0}.app-header .subtle button:last-child{padding-left:12px}.task-tab button:focus-visible{outline-offset:-3px}@media (max-width:850px){.taskbar{padding:5px 9px 0;height:40px;gap:5px}.new-task{padding:5px 8px}.task-tab>button{gap:5px;padding:7px}.task-tab small,.history-label{display:none}.app-header .subtle{gap:10px}.task-content .workspace,.task-content:has(>.cloud-error) .workspace{height:auto;min-height:calc(100dvh - 92px)}.question-section{height:calc(100dvh - 108px);min-height:410px}.answer-section{height:calc(100dvh - 70px)}.history-view{height:calc(100dvh - 92px);padding:9px}}@media (prefers-reduced-motion:reduce){.task-indicator.running svg{animation:none}}.grade-control{position:relative;display:flex;align-items:center;gap:7px;flex-shrink:0}.grade-label{font-size:11px;color:#89987e}.app-header .subtle .grade-control .grade-trigger{display:flex;align-items:center;justify-content:center;gap:6px;min-width:58px;height:30px;padding:0 8px;border:1px solid #e1e8d9;border-radius:7px;background:#f6f9f1;color:#456d43;font-size:11px}.grade-menu{position:absolute;z-index:30;right:0;top:calc(100% + 6px);width:180px;max-width:calc(100vw - 24px);display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:4px;padding:6px;background:#fff;border:1px solid #dfe7d7;border-radius:10px;box-shadow:0 6px 22px #2742201a}.app-header .subtle .grade-menu button{display:flex;align-items:center;justify-content:center;gap:3px;height:30px;padding:0 3px;border:0;border-radius:6px;background:transparent;color:#71836a;font-size:12px;white-space:nowrap}.app-header .subtle .grade-menu button[aria-checked=true]{background:#edf4e5;color:#456d43}.app-header .subtle .grade-menu button:hover,.app-header .subtle .grade-menu button:focus-visible{background:#f0f5e9}@media (max-width:850px){.grade-label{display:none}.grade-control{gap:0}}.model-settings{width:min(420px,calc(100vw - 28px));max-height:calc(100dvh - 32px);overflow-y:auto;border:1px solid var(--line);border-radius:14px;padding:22px;color:var(--ink);box-shadow:0 18px 70px #1d33242b;background:#fff}.model-settings::backdrop{background:#20312855;-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px)}.settings-heading{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:20px}.settings-heading h2{display:flex;align-items:center;gap:9px;margin:0;font-size:16px;font-weight:600}.settings-close{display:grid;place-items:center;width:28px;height:28px;border:0;border-radius:6px;background:#f4f7f0;color:#819377}.model-form{display:flex;flex-direction:column;gap:15px}.model-form>label{display:flex;flex-direction:column;gap:7px;font-size:12px;color:#6d8063}.model-form input{width:100%;min-width:0;height:40px;padding:9px 11px;border:1px solid #dde5d5;border-radius:7px;font-size:13px;background:#fcfdf9;color:var(--ink)}.key-field{position:relative}.key-field input{padding-right:40px}.key-field button{position:absolute;right:3px;top:3px;height:34px;width:34px;display:grid;place-items:center;border:0;background:transparent;color:#8c9c83}.settings-note{margin:0;color:#99a28f;font-size:11px;line-height:1.8}.settings-error{margin:0;font-size:12px;color:#a56f49;line-height:1.7}.settings-actions{display:flex;justify-content:flex-end;gap:8px;padding-top:5px}.settings-actions button{min-height:34px;padding:7px 13px;border:1px solid var(--line);border-radius:7px;background:#fff;color:#76886b;font-size:12px}.settings-actions .save-model{background:var(--green);color:#fff;border-color:var(--green)}.settings-actions .remove-model{margin-right:auto;border-color:transparent;color:#a38a74}.app-header .subtle .model-settings-trigger{padding:6px;border:0;border-radius:6px;color:#6c8562;background:#f6f9f1}@media (max-width:380px){.app-header .subtle{gap:6px}.model-settings{padding:18px}.app-header .subtle .model-settings-trigger{padding:5px}}.model-key{display:flex;flex-direction:column;gap:7px;font-size:12px;color:#6d8063}.board-topline .notes-toggle.has-notes{background:#edf5e8;border-color:#b7cba9;color:#466c3d}.notes-toggle .notes-indicator{display:block;width:5px;height:5px;flex-shrink:0;border-radius:50%;background:#6b9a60}.question-notes{position:relative;margin:0 0 11px;padding:10px 11px 26px;border:1px solid #dce6d5;border-radius:9px;background:#fafcf7;min-width:0}.question-notes textarea{display:block;width:100%;min-width:0;min-height:60px;max-height:180px;resize:vertical;border:0;background:transparent;color:var(--ink);font:inherit;font-size:13px;line-height:1.7;padding:0;overflow-wrap:anywhere}.question-notes textarea:focus-visible{outline:2px solid #83b69c;outline-offset:4px;border-radius:2px}.question-notes textarea::placeholder{color:#9aa991}.question-notes>span{position:absolute;right:11px;bottom:7px;font-size:10px;color:#9aa78f}@media (max-width:850px){.question-notes textarea{font-size:16px}}@media (max-width:400px){.board-topline .notes-toggle>span:not(.notes-indicator){display:none}.board-topline>div{gap:5px}}.geometry-panel{margin:0 0 22px;min-width:0;border:1px solid #e0e8d9;border-radius:10px;background:#fafcf7;overflow:hidden;scroll-margin-top:8px}.geometry-heading{display:flex;justify-content:space-between;align-items:center;gap:8px;padding:10px 11px;border-bottom:1px solid #e5ecdf}.geometry-heading strong{font-size:12px;font-weight:550;color:#536e48}.geometry-heading>div{display:flex;gap:6px}.geometry-panel button{display:inline-flex;align-items:center;justify-content:center;gap:5px;border:1px solid #dfe7d5;background:#fff;color:#708663;border-radius:6px;padding:6px 8px;font-size:11px;min-height:29px}.geometry-panel button[aria-pressed=true]{background:#edf5e5;border-color:#aac298;color:#426c3b}.geometry-canvas{display:block;width:100%;height:auto;max-height:390px;background:#fff}.geometry-canvas.is-editing{touch-action:none;cursor:crosshair}.geometry-canvas .editable-point{cursor:grab}.geometry-point-picker{padding:9px 11px;border-bottom:1px solid #e5ecdf}.geometry-point-picker>span{font-size:10px;color:#8d9c80}.geometry-point-picker>div{display:flex;gap:5px;flex-wrap:wrap;margin-top:7px}.geometry-point-picker button{min-width:30px}.geometry-step-controls{display:flex;align-items:center;gap:8px;padding:8px 10px;border-top:1px solid #e5ecdf}.geometry-step-controls>span{flex:1;min-width:0;font-size:11px;color:#6e835f;line-height:1.6}.geometry-step-controls>button{flex-shrink:0}.geometry-step-list{margin:0 10px 8px;font-size:11px;color:#8d9b80}.geometry-step-list summary{cursor:pointer;padding:4px 0}.geometry-step-list>button{display:flex;width:100%;justify-content:flex-start;text-align:left;border-color:transparent;background:transparent;line-height:1.7;margin-top:3px}.geometry-caption{display:block;margin:0;padding:0 11px 11px;font-size:10px;line-height:1.7;color:#9aa78e}.geometry-error{margin:0 10px 8px;color:#a57b4c;font-size:11px;line-height:1.8}.rendered-answer a[href^="#geometry-step-"]{color:#4f8058;text-underline-offset:3px}@media (max-width:850px){.geometry-canvas{max-height:310px}.geometry-panel button{min-height:34px}.geometry-heading{padding:8px}.geometry-caption{font-size:10px}.geometry-step-controls{gap:6px}}.photo-edit-trigger{position:absolute;right:10px;top:10px;z-index:3;display:inline-flex;align-items:center;gap:5px;min-height:32px;padding:7px 9px;border:1px solid #dce6d5;border-radius:7px;background:#fffffff2;color:#60795a;font-size:11px;box-shadow:0 2px 8px #223e2d09}.photo-editor{width:min(840px,calc(100vw - 24px));max-height:calc(100dvh - 24px);padding:0;border:1px solid #dce5d8;border-radius:14px;overflow-x:hidden;overflow-y:auto;color:var(--ink);background:#fff;box-shadow:0 18px 80px #14291f33}.photo-editor::backdrop{background:#172a226b;-webkit-backdrop-filter:blur(3px);backdrop-filter:blur(3px)}.photo-editor button{display:inline-flex;align-items:center;justify-content:center;gap:6px;min-height:36px;padding:8px 11px;border:1px solid #dfe7d9;border-radius:7px;background:#fff;color:#62785b;font-size:12px}.photo-editor-heading{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:13px 16px;border-bottom:1px solid var(--line)}.photo-editor-heading h2{margin:0;font-size:15px;font-weight:600}.photo-editor-heading button{padding:6px;min-height:30px;width:30px;border:0;background:#f3f6ef}.photo-editor-tools{display:flex;align-items:center;gap:8px;padding:10px 16px;flex-wrap:wrap}.photo-editor-tools .photo-reset{margin-left:auto}.photo-editor-preview{display:flex;align-items:center;justify-content:center;min-width:0;min-height:120px;padding:24px;background:#e9eee7}.photo-editor-preview>p{font-size:12px;color:#7a8d71}.photo-edit-stage{position:relative;flex-shrink:0;overflow:hidden;touch-action:none;user-select:none;-webkit-user-select:none;background:#fff;outline:1px solid #9ba99a}.photo-edit-stage[hidden]{display:none}.photo-edit-stage>canvas{display:block;width:100%;height:100%}.photo-crop-box{position:absolute;box-sizing:border-box;border:2px solid white;box-shadow:0 0 0 2000px #13241c88;cursor:move;touch-action:none}.photo-crop-box:focus-visible{outline:2px solid #75ba96;outline-offset:-4px}.photo-crop-grid{position:absolute;top:0;right:0;bottom:0;left:0;pointer-events:none;background-image:linear-gradient(to right,transparent calc(33.333% - .5px),#fff7 33.333%,transparent calc(33.333% + .5px),transparent calc(66.666% - .5px),#fff7 66.666%,transparent calc(66.666% + .5px)),linear-gradient(to bottom,transparent calc(33.333% - .5px),#fff7 33.333%,transparent calc(33.333% + .5px),transparent calc(66.666% - .5px),#fff7 66.666%,transparent calc(66.666% + .5px))}.photo-editor .photo-crop-handle{position:absolute;z-index:2;display:grid;place-items:center;border:0;border-radius:0;background:transparent;padding:0;min-height:0;touch-action:none}.photo-crop-handle>span{display:block;background:#fff;box-shadow:0 1px 4px #14291f55;pointer-events:none;border-radius:3px}.photo-crop-handle.crop-n,.photo-crop-handle.crop-s{height:44px;width:calc(100% - 44px);left:22px;cursor:ns-resize}.crop-n{top:-23px}.crop-s{bottom:-23px}.crop-n>span,.crop-s>span{height:4px;width:32px;max-width:100%}.photo-crop-handle.crop-w,.photo-crop-handle.crop-e{width:44px;height:calc(100% - 44px);top:22px;cursor:ew-resize}.crop-w{left:-23px}.crop-e{right:-23px}.crop-w>span,.crop-e>span{width:4px;height:32px;max-height:100%}.photo-editor .crop-nw,.photo-editor .crop-ne,.photo-editor .crop-sw,.photo-editor .crop-se{width:44px;height:44px;z-index:3}.crop-nw,.crop-ne{top:-23px}.crop-sw,.crop-se{bottom:-23px}.crop-nw,.crop-sw{left:-23px}.crop-ne,.crop-se{right:-23px}.crop-nw,.crop-se{cursor:nwse-resize}.crop-ne,.crop-sw{cursor:nesw-resize}.crop-nw>span,.crop-ne>span,.crop-sw>span,.crop-se>span{width:12px;height:12px;border:2px solid white;background:#3d795a;border-radius:3px}.photo-editor .photo-crop-handle:focus-visible{outline:2px solid #64b88a;outline-offset:-6px}.photo-edit-stage.is-saving{pointer-events:none;opacity:.7}.photo-editor-footer{padding:10px 16px 14px}.photo-editor-footer>p{font-size:11px;color:#8b9a80;line-height:1.7;margin:0 0 10px}.photo-editor-footer>div{display:flex;justify-content:flex-end;gap:8px}.photo-editor-footer .photo-apply{background:var(--green);border-color:var(--green);color:#fff;min-width:100px}.photo-editor-footer>.photo-error{color:#a76e49}@media (max-width:480px){.photo-editor-heading{padding:11px 12px}.photo-editor-tools{gap:6px;padding:9px 12px}.photo-editor-tools button{min-height:40px;padding:8px;font-size:11px}.photo-editor-preview{padding:20px}.photo-editor-footer{padding:10px 12px 12px}.photo-editor-footer button{min-height:42px}}@media (max-height:550px){.photo-editor-preview{padding:12px}.photo-edit-stage{max-width:50dvh}.photo-editor-tools{padding-top:6px;padding-bottom:6px}.photo-editor-heading{padding-top:7px;padding-bottom:7px}}@media (max-width:380px){.photo-editor-tools .photo-reset>span{display:none}.photo-editor-tools .photo-reset{min-width:36px;padding:8px}.photo-editor-tools{flex-wrap:nowrap}}.settings-tabs{display:flex;gap:5px;padding:4px;background:#f3f6ee;border-radius:8px;margin:-3px 0 18px}.settings-tabs button{flex:1;border:0;border-radius:6px;padding:9px 10px;font-size:12px;background:transparent;color:#85937b}.settings-tabs button[aria-selected=true]{background:#fff;box-shadow:0 1px 5px #203a2410;color:#42673a}.drawing-pack-settings{display:flex;flex-direction:column;gap:12px}.pack-settings-intro{display:flex;align-items:center;gap:10px;justify-content:space-between}.pack-settings-intro>p{font-size:11px;color:#88977c;line-height:1.8;margin:0;flex:1}.pack-settings-intro>button{display:inline-flex;align-items:center;gap:5px;flex-shrink:0;padding:8px 10px;border:1px solid #dce6d4;background:#fff;border-radius:7px;font-size:11px;color:#617f52}.drawing-pack-card{padding:14px;border:1px solid #e1e8da;border-radius:10px;min-width:0}.drawing-pack-card-heading{display:flex;align-items:center;justify-content:space-between;gap:9px}.drawing-pack-card-heading>div{display:flex;align-items:center;gap:7px;min-width:0;color:#668258}.drawing-pack-card-heading strong{font-size:13px;overflow-wrap:anywhere}.pack-badge{flex-shrink:0;font-size:9px;padding:3px 5px;border-radius:4px;background:#f0f5e9;color:#8a9d78}.drawing-pack-card>p{font-size:11px;line-height:1.8;color:#89977d;margin:10px 0}.drawing-pack-meta{display:flex;gap:9px;align-items:center;flex-wrap:wrap;color:#9aa58c;font-size:10px}.drawing-pack-meta>button{display:inline-flex;align-items:center;gap:4px;margin-left:auto;border:0;background:transparent;color:#a08c79;padding:5px;font-size:10px}.drawing-pack-card details{margin-top:8px;color:#94a184;font-size:10px;overflow-wrap:anywhere}.drawing-pack-card summary{cursor:pointer;padding:4px 0}.drawing-pack-card details p{line-height:1.9;margin:6px 0}.drawing-pack-card code{font-size:9px}.pack-switch{display:flex;align-items:center;flex-shrink:0;width:36px;height:22px;padding:3px;border:0;border-radius:14px;background:#d8dfd0}.pack-switch.on{background:#4e8463}.pack-switch>span{width:16px;height:16px;border-radius:50%;background:#fff;box-shadow:0 1px 3px #0002;transform:translate(0);transition:transform .15s}.pack-switch.on>span{transform:translate(14px)}.pack-notice{margin:0;color:#638758;font-size:11px}.pack-diagram-source{display:flex;align-items:center;font-size:10px;color:#8b9d7e}.disabled-drawing{display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:11px;color:#8b9b80;padding:12px;border:1px dashed #dae4d0;border-radius:8px;margin-bottom:15px}.disabled-drawing>button{border:0;background:transparent;color:#547f51;font-size:11px;padding:5px}.pack-diagram .geometry-canvas{height:auto;max-height:440px}.pack-diagram .geometry-heading{align-items:flex-start}.pack-diagram .geometry-heading>strong{min-width:0;overflow-wrap:anywhere}.pack-diagram-source{max-width:100px;overflow-wrap:anywhere}