@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:"0.16.44"}.katex .katex-mathml{clip:rect(1px,1px,1px,1px);border:0;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{color-scheme:light;--bg: #f6f2ea;--bg-strong: #f0e9dc;--panel: rgba(255, 252, 247, .92);--panel-solid: #fffdfa;--border: #e8dfd3;--border-strong: #d9ccb9;--text: #261f16;--muted: #72685a;--accent: #b35d28;--accent-soft: #f4e4d5;--shadow: 0 16px 42px rgba(38, 31, 22, .08);font-family:Segoe UI,PingFang SC,Microsoft YaHei,sans-serif;line-height:1.5;font-weight:400;color:var(--text);background:radial-gradient(circle at top left,rgba(179,93,40,.08),transparent 28%),linear-gradient(180deg,#fbf8f2,#f3eee5);font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}*{box-sizing:border-box}html,body,#root{min-height:100%}body{margin:0;min-width:1260px}a,button,input{font:inherit}a{color:inherit;text-decoration:none}button{cursor:pointer}.viewport-warning{display:none}.loading-shell{display:grid;place-items:center;min-height:100vh;padding:24px}.loading-card{min-width:460px;padding:30px 32px;border-radius:24px;border:1px solid var(--border);background:var(--panel-solid);box-shadow:var(--shadow)}.loading-card strong{display:block;margin:14px 0 10px;font-size:30px;line-height:1.28;font-family:"Source Han Serif SC",Songti SC,serif}.loading-card p{margin:0;color:var(--muted)}.eyebrow{display:inline-flex;align-items:center;color:var(--accent);font-size:12px;font-weight:700;letter-spacing:.08em;text-transform:uppercase}.landing-shell,.reader-route-shell{min-height:100vh}.landing-page{width:min(1320px,calc(100vw - 72px));margin:0 auto;padding:42px 0 56px}.hero-card,.home-cluster-card,.home-paper-card,.panel{border:1px solid var(--border);background:var(--panel);box-shadow:var(--shadow)}.hero-card{display:grid;grid-template-columns:minmax(0,1.18fr) 380px;gap:22px;padding:36px 38px;border-radius:28px}.hero-copy h1,.section-head h2,.sidebar-head h1,.outline-head h2,.reader-head h2{margin:12px 0 14px;font-family:"Source Han Serif SC",Songti SC,serif;line-height:1.22}.hero-copy h1{font-size:52px;max-width:860px}.hero-copy p,.section-head p,.home-cluster-card p,.home-paper-card p,.sidebar-head p,.outline-head p,.outline-note,.library-item p,.shortcut-item span{color:var(--muted)}.hero-copy p{max-width:780px;font-size:18px}.hero-chips{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}.hero-chip{display:inline-flex;align-items:center;min-height:36px;padding:0 14px;border-radius:999px;border:1px solid var(--border);background:#ffffffb8;color:var(--text);font-size:14px}.hero-actions{display:flex;gap:12px;margin-top:24px}.hero-action{display:inline-flex;align-items:center;justify-content:center;min-width:136px;min-height:48px;padding:0 18px;border-radius:14px;border:1px solid var(--border-strong);background:#fff;color:var(--text)}.hero-action--primary{background:var(--accent);border-color:var(--accent);color:#fff}.hero-metrics{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin-top:26px}.hero-metric,.hero-spotlight__stats div,.sidebar-stats div{padding:16px 18px;border-radius:18px;background:var(--panel-solid);border:1px solid var(--border)}.hero-metric dt,.hero-spotlight__stats dt,.sidebar-stats dt{margin:0 0 8px;color:var(--muted);font-size:12px}.hero-metric dd,.hero-spotlight__stats dd,.sidebar-stats dd{margin:0;font-size:30px;font-weight:700;line-height:1.2}.hero-spotlight{display:grid;align-content:start;gap:16px;padding:26px 24px;border-radius:24px;border:1px solid var(--border);background:linear-gradient(180deg,#fffffff5,#faf1e5f0)}.hero-spotlight h2{margin:2px 0 0;font-size:32px;line-height:1.18;font-family:"Source Han Serif SC",Songti SC,serif}.hero-spotlight p{margin:0;color:var(--muted);font-size:15px}.hero-spotlight__stats{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px}.hero-spotlight__note{padding:14px 16px;border-radius:16px;border:1px dashed var(--border-strong);background:#ffffffa8;color:var(--muted);font-size:14px}.landing-section{margin-top:34px}.section-head{display:grid;gap:6px;margin-bottom:18px}.section-head h2{font-size:34px}.home-cluster-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}.home-cluster-card,.home-paper-card{display:grid;gap:12px;padding:22px;border-radius:24px;transition:.14s ease}.home-cluster-card:hover,.home-paper-card:hover,.library-item:hover,.outline-item:hover,.shortcut-item:hover{border-color:var(--accent);transform:translateY(-1px)}.home-cluster-card__meta{display:flex;align-items:center;justify-content:space-between;gap:10px;color:var(--muted);font-size:13px}.home-cluster-card strong,.home-paper-card strong,.library-item__head strong,.outline-item strong,.shortcut-item strong{font-size:20px;line-height:1.3}.home-paper-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}.home-paper-card__top{display:grid;gap:8px}.home-paper-card span{color:var(--accent);font-size:13px;font-weight:700}.home-paper-card__meta{display:flex;align-items:center;gap:8px}.home-paper-card__meta b{display:inline-flex;align-items:center;min-height:30px;padding:0 10px;border-radius:999px;background:var(--accent-soft);color:var(--accent);font-size:13px;font-weight:700}.reader-layout{display:grid;grid-template-columns:320px 280px minmax(0,1fr);gap:16px;min-height:calc(100vh - 97px);padding:16px}.panel{min-height:0;border-radius:24px}.sidebar,.outline,.reader{min-height:0}.sidebar,.outline{display:grid;grid-template-rows:auto auto minmax(0,1fr)}.sidebar-head,.sidebar-tools,.sidebar-library,.outline-head,.reader-head{padding:22px 22px 0}.sidebar-head,.outline-head,.reader-head{border-bottom:1px solid var(--border);padding-bottom:18px}.sidebar-head h1,.outline-head h2,.reader-head h2{font-size:32px}.sidebar-stats{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px;margin:18px 0 0}.sidebar-tools{display:grid;gap:14px}.search-box{display:grid;gap:8px}.search-box span{color:var(--muted);font-size:13px}.search-box input{width:100%;padding:12px 14px;border:1px solid var(--border-strong);border-radius:14px;background:#fff;color:var(--text);outline:none}.search-box input:focus{border-color:var(--accent);box-shadow:0 0 0 4px #b35d281a}.sidebar-library{display:grid;grid-template-rows:auto minmax(0,1fr);min-height:0;padding-bottom:22px}.sidebar-library__head{display:flex;align-items:center;justify-content:space-between;padding:0 0 12px}.sidebar-library__head strong{font-size:15px}.sidebar-library__head span{color:var(--muted);font-size:13px}.library-list,.outline-list,.reader-scroll{overflow:auto;scrollbar-width:thin;scrollbar-color:#cdbba5 transparent}.library-list,.outline-list{display:grid;gap:10px}.library-item,.outline-item,.shortcut-item{width:100%;border:1px solid var(--border);border-radius:18px;background:var(--panel-solid);text-align:left;transition:.14s ease}.library-item{padding:14px 15px}.library-item.is-active,.outline-item.is-active{background:var(--accent-soft);border-color:#e0b28d}.library-item__head,.outline-item{display:flex;align-items:center;justify-content:space-between;gap:12px}.library-item__head span,.outline-item span,.shortcut-item span{flex-shrink:0;color:var(--muted);font-size:12px}.library-item p{margin:8px 0 0;font-size:13px}.empty-state,.outline-note{padding:16px;border-radius:18px;background:var(--panel-solid);border:1px dashed var(--border-strong)}.outline-meta,.reader-badges{display:flex;flex-wrap:wrap;gap:8px}.outline-meta span,.reader-badge{display:inline-flex;align-items:center;min-height:28px;padding:0 10px;border-radius:999px;background:var(--accent-soft);color:var(--accent);font-size:12px;font-weight:700}.reader-badge--muted{background:var(--bg-strong);color:var(--muted)}.shortcut-list{display:grid;gap:10px;padding:18px 22px 0}.shortcut-item{padding:14px 15px}.shortcut-item span{display:block;margin-top:6px}.outline-list{padding:18px 22px 22px}.outline-item{padding:14px 15px}.reader{display:grid;grid-template-rows:auto minmax(0,1fr)}.reader-head{display:flex;align-items:flex-start;justify-content:space-between;gap:24px}.reader-head__meta p{margin:10px 0 0;color:var(--muted);font-size:14px}.reader-actions{display:flex;gap:8px}.reader-actions button{min-width:78px;min-height:42px;padding:0 16px;border:1px solid var(--border);border-radius:12px;background:var(--panel-solid);color:var(--muted)}.reader-actions button:not(:disabled):hover{background:var(--accent);border-color:var(--accent);color:#fff}.reader-actions button:disabled{cursor:not-allowed;opacity:.45}.reader-scroll{min-height:0;padding-right:4px}.reader-article{max-width:1100px;margin:0 auto;padding:36px 42px 100px}.reader-article h1,.reader-article h2,.reader-article h3{margin:0 0 16px;color:var(--text);line-height:1.32;font-family:"Source Han Serif SC",Songti SC,serif}.reader-article h2{font-size:34px}.reader-article h3{margin-top:28px;font-size:24px}.reader-article p,.reader-article li,.reader-article td,.reader-article th{font-size:17px}.reader-article p,.reader-article ol,.reader-article ul,.reader-article blockquote,.reader-article table{margin:0 0 16px}.reader-article ol,.reader-article ul{padding-left:28px}.reader-article li+li{margin-top:10px}.reader-article table{width:100%;border-collapse:collapse}.reader-article th,.reader-article td{padding:10px 12px;border:1px solid var(--border);vertical-align:top}.reader-article code{padding:.12em .34em;border-radius:8px;background:var(--accent-soft)}.reader-article hr{border:0;border-top:1px solid var(--border);margin:28px 0}.reader-article .katex-display{overflow-x:auto;overflow-y:hidden;padding:8px 0}.exam-layout{display:grid;grid-template-columns:minmax(0,1fr) 340px;gap:18px;min-height:100vh;padding:18px}.exam-main{display:grid;grid-template-rows:auto minmax(0,1fr);gap:18px;min-height:0}.exam-toolbar,.exam-question,.answer-card{min-height:0;border-radius:24px}.exam-toolbar{padding:24px}.exam-toolbar__top{display:flex;align-items:flex-start;justify-content:space-between;gap:20px}.exam-toolbar__top h1,.answer-card__head h2,.exam-question__head h2{margin:12px 0 10px;font-family:"Source Han Serif SC",Songti SC,serif;line-height:1.22}.exam-toolbar__top h1{font-size:34px}.exam-toolbar__top p,.exam-question__head p,.answer-card__head p{margin:0;color:var(--muted)}.exam-paper-switch{display:flex;flex-wrap:wrap;gap:10px;max-width:520px;justify-content:flex-end}.exam-paper-switch button,.exam-group-tabs button,.answer-card__link,.answer-card__actions button{border:1px solid var(--border);background:var(--panel-solid);color:var(--muted);transition:.14s ease}.exam-paper-switch button{min-width:88px;min-height:40px;padding:0 14px;border-radius:999px}.exam-paper-switch button.is-active,.exam-group-tabs button.is-active,.answer-card__link:hover,.answer-card__actions button:hover{border-color:var(--accent);background:var(--accent-soft);color:var(--text)}.exam-group-tabs{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px;margin-top:22px}.exam-group-tabs button{display:grid;gap:4px;padding:14px 16px;border-radius:18px;text-align:left}.exam-group-tabs strong{font-size:16px;color:var(--text)}.exam-group-tabs span{color:var(--muted);font-size:13px}.exam-question{display:grid;grid-template-rows:auto minmax(0,1fr);padding:24px}.exam-question__head{display:flex;align-items:flex-start;justify-content:space-between;gap:24px;padding-bottom:18px;border-bottom:1px solid var(--border)}.exam-question__head h2{font-size:32px}.exam-question__head h2 em{margin-left:12px;color:var(--muted);font-style:normal;font-size:16px;font-family:Segoe UI,PingFang SC,Microsoft YaHei,sans-serif}.exam-question__head-actions{display:grid;justify-items:end}.question-favorite-button{min-height:40px;padding:0 16px;border:1px solid var(--border-strong);border-radius:999px;background:var(--panel-solid);color:var(--accent);font-size:14px;font-weight:700;transition:.14s ease}.question-favorite-button:hover,.question-favorite-button.is-active{border-color:#c75b46;background:#fff1ee;color:#b44432}.exam-question__body{overflow:auto;padding:28px 4px 8px 0;scrollbar-width:thin;scrollbar-color:#cdbba5 transparent}.exam-question__stem{margin-bottom:22px}.exam-question__stem p,.exam-question__stem li{font-size:21px;line-height:1.8}.exam-question__stem p,.exam-question__stem ol,.exam-question__stem ul{margin:0 0 16px}.choice-list{display:grid;gap:14px}.choice-feedback{display:flex;align-items:center;justify-content:space-between;gap:18px;padding:16px 18px;border-radius:18px;border:1px solid var(--border);background:var(--panel-solid)}.choice-feedback strong{font-size:18px}.choice-feedback span{color:var(--muted);font-size:15px}.choice-feedback.is-correct{border-color:#9fc7ba;background:#eef8f4}.choice-feedback.is-correct strong{color:#1f6b52}.choice-feedback.is-wrong{border-color:#e7b0a8;background:#fff3f0}.choice-feedback.is-wrong strong{color:#b44432}.choice-option{display:grid;grid-template-columns:56px minmax(0,1fr);align-items:flex-start;gap:14px;width:100%;padding:18px 20px;border-radius:18px;border:1px solid var(--border);background:var(--panel-solid);text-align:left;transition:.14s ease}.choice-option:hover,.choice-option.is-selected{border-color:var(--accent);background:#fff7ef}.choice-option.is-correct{border-color:#8ec0b0;background:#edf8f4}.choice-option.is-incorrect{border-color:#e6a79d;background:#fff1ee}.choice-option__key{display:inline-flex;align-items:center;justify-content:center;width:38px;height:38px;border-radius:999px;background:var(--bg-strong);color:var(--accent);font-weight:700;font-size:18px}.choice-option.is-correct .choice-option__key{background:#dcefe8;color:#1f6b52}.choice-option.is-incorrect .choice-option__key{background:#f7ddd8;color:#b44432}.choice-option__body{display:grid;gap:10px}.choice-option__text,.choice-option__text p{font-size:21px;line-height:1.7}.choice-option__text p{margin:0}.choice-option__state{display:inline-flex;align-items:center;width:fit-content;min-height:32px;padding:0 12px;border-radius:999px;font-size:13px;font-weight:700}.choice-option__state--correct{background:#dcefe8;color:#1f6b52}.choice-option__state--wrong{background:#f7ddd8;color:#b44432}.answer-input-card{display:grid;gap:10px}.answer-input-card__label{color:var(--muted);font-size:14px}.answer-reveal-slot{display:flex;justify-content:flex-start}.answer-reveal-button{justify-self:end;min-width:104px;min-height:38px;padding:0 14px;border:1px solid var(--border-strong);border-radius:999px;background:var(--panel-solid);color:var(--accent);font-size:14px;font-weight:700;transition:.14s ease}.answer-reveal-button--inline{justify-self:auto;min-width:132px}.answer-reveal-button:hover{border-color:var(--accent);background:var(--accent-soft)}.answer-input,.answer-textarea{width:100%;border:1px solid var(--border-strong);border-radius:18px;background:#fff;color:var(--text);outline:none}.answer-input{min-height:56px;padding:0 16px;font-size:20px}.answer-textarea{min-height:220px;padding:16px;resize:vertical;font-size:18px;line-height:1.7}.answer-input:focus,.answer-textarea:focus{border-color:var(--accent);box-shadow:0 0 0 4px #b35d281a}.revealed-answer-card{display:grid;gap:10px;padding:16px 18px;border:1px solid #dcc3a9;border-radius:18px;background:#fff9f1}.revealed-answer-card__label{color:var(--accent);font-size:13px;font-weight:700}.revealed-answer-card__body,.revealed-answer-card__body p,.revealed-answer-card__body li{font-size:18px;line-height:1.75}.revealed-answer-card__body p,.revealed-answer-card__body ol,.revealed-answer-card__body ul{margin:0 0 12px}.revealed-answer-card__body p:last-child,.revealed-answer-card__body ol:last-child,.revealed-answer-card__body ul:last-child{margin-bottom:0}.exam-question--empty{place-items:center}.empty-state{display:grid;gap:18px;width:min(720px,100%);padding:28px 12px;text-align:center}.empty-state h2{margin:0;font-family:"Source Han Serif SC",Songti SC,serif;font-size:34px;line-height:1.24}.empty-state p{margin:0;color:var(--muted);font-size:18px;line-height:1.8}.empty-state__link{justify-self:center;display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:0 18px;border:1px solid var(--border);border-radius:999px;background:var(--panel-solid);color:var(--text);font-weight:700;transition:.14s ease}.empty-state__link:hover{border-color:var(--accent);background:var(--accent-soft)}.answer-card{display:grid;grid-template-rows:auto auto auto auto minmax(0,1fr) auto;padding:22px}.answer-card__head{display:flex;align-items:flex-start;justify-content:space-between;gap:14px}.answer-card__head h2{font-size:28px}.answer-card__summary{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;margin-top:18px}.answer-card__summary div{padding:14px 12px;border-radius:18px;background:var(--panel-solid);border:1px solid var(--border)}.answer-card__summary strong{display:block;font-size:28px;line-height:1.2}.answer-card__summary span{color:var(--muted);font-size:13px}.answer-card__actions{display:grid;gap:10px;margin-top:16px}.answer-card__row{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.answer-card__link,.answer-card__actions button{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:0 12px;border-radius:14px;text-align:center}.answer-card__link{border:1px solid var(--border);background:var(--panel-solid)}.answer-card__legend{display:flex;flex-wrap:wrap;gap:12px;margin-top:18px;padding-top:16px;border-top:1px solid var(--border);color:var(--muted);font-size:12px}.answer-card__legend span{display:inline-flex;align-items:center;gap:6px}.answer-dot{width:10px;height:10px;border-radius:999px;background:var(--bg-strong)}.answer-dot--done{background:var(--accent)}.answer-dot--correct{background:#2c8b68}.answer-dot--wrong{background:#d45a4a}.answer-dot--current{background:#2e7a73}.answer-card__groups{overflow:auto;margin-top:16px;padding-right:4px;scrollbar-width:thin;scrollbar-color:#cdbba5 transparent}.answer-card__practice{display:grid;margin-top:16px;padding-top:16px;border-top:1px solid var(--border)}.answer-card__practice-button{min-height:46px;padding:0 16px;border:1px solid var(--border-strong);border-radius:16px;background:var(--panel-solid);color:var(--text);font-weight:700;transition:.14s ease}.answer-card__practice-button:hover,.answer-card__practice-button.is-active{border-color:var(--accent);background:var(--accent-soft)}.answer-card__group+.answer-card__group{margin-top:18px}.answer-card__group-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:10px}.answer-card__group-head strong{font-size:16px}.answer-card__group-head span{color:var(--muted);font-size:13px}.answer-card__grid{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:8px}.answer-chip{min-height:42px;border-radius:12px;border:1px solid var(--border);background:var(--panel-solid);color:var(--text);font-weight:700}.answer-chip.is-answered{border-color:#dfb28f;background:#fff3e7}.answer-chip.is-correct{border-color:#8ec0b0;background:#edf8f4;color:#1f6b52}.answer-chip.is-wrong{border-color:#e6a79d;background:#fff1ee;color:#b44432}.answer-chip.is-active{border-color:#2e7a73;box-shadow:inset 0 0 0 1px #2e7a73}@media(max-width:1180px){body{min-width:0}.landing-shell,.reader-route-shell{display:none}.viewport-warning{display:grid;place-items:center;min-height:100vh;padding:24px;color:var(--text);font-size:18px;text-align:center}}
