@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{color-scheme:light;--bg: #f6f5f1;--surface: #fcfcfb;--surface-2: #f0efeb;--ink: #0b0b0b;--ink-2: #52514e;--muted: #898781;--line: #e1e0d9;--axis: #c3c2b7;--accent: #2a78d6;--accent-ink: #ffffff;--accent-soft: #cde2fb;--accent-soft-2: #e7f0fc;--good: #0ca30c;--good-ink: #006300;--good-soft: #e3f4e3;--bad: #d03b3b;--bad-soft: #fbe6e6;--warn: #fab219;--warn-soft: #fff3d6;--ring: rgba(11, 11, 11, .1);--shadow: 0 1px 2px rgba(0, 0, 0, .05), 0 4px 16px rgba(0, 0, 0, .05);--st-new: #d9d8d1;--st-weak: #d03b3b;--st-learning: #fab219;--st-review: #ec835a;--st-solid: #86b6ef;--st-mastered: #0ca30c;--v-stroke: #2b2b2a;--v-fill: #86b6ef;--v-fill-soft: #e7f0fc;--v-empty: #ffffff;--v-accent: #eb6834;--v-grid: #e1e0d9;--radius: 14px;--font: system-ui, -apple-system, "Segoe UI", Roboto, "PingFang SC", "Microsoft YaHei", sans-serif}@media (prefers-color-scheme: dark){:root:where(:not([data-theme=light])){color-scheme:dark;--bg: #0d0d0d;--surface: #1a1a19;--surface-2: #232322;--ink: #ffffff;--ink-2: #c3c2b7;--muted: #898781;--line: #2c2c2a;--axis: #383835;--accent: #3987e5;--accent-soft: #184f95;--accent-soft-2: #16283f;--good-ink: #0ca30c;--good-soft: #10301a;--bad-soft: #3a1818;--warn-soft: #3a2d0e;--ring: rgba(255, 255, 255, .1);--shadow: none;--st-new: #383835;--st-solid: #3987e5;--v-stroke: #e8e7e1;--v-fill: #2a78d6;--v-fill-soft: #16283f;--v-empty: #1a1a19;--v-grid: #2c2c2a}}:root[data-theme=dark]{color-scheme:dark;--bg: #0d0d0d;--surface: #1a1a19;--surface-2: #232322;--ink: #ffffff;--ink-2: #c3c2b7;--line: #2c2c2a;--axis: #383835;--accent: #3987e5;--accent-soft: #184f95;--accent-soft-2: #16283f;--good-ink: #0ca30c;--good-soft: #10301a;--bad-soft: #3a1818;--warn-soft: #3a2d0e;--ring: rgba(255, 255, 255, .1);--shadow: none;--st-new: #383835;--st-solid: #3987e5;--v-stroke: #e8e7e1;--v-fill: #2a78d6;--v-fill-soft: #16283f;--v-empty: #1a1a19;--v-grid: #2c2c2a}*{box-sizing:border-box}html,body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--font);font-size:16px;line-height:1.5;-webkit-text-size-adjust:100%}a{color:var(--accent);text-decoration:none}button{font:inherit;cursor:pointer}input,select{font:inherit}h1,h2,h3{line-height:1.25;margin:0 0 8px}h1{font-size:1.5rem}h2{font-size:1.2rem}h3{font-size:1.02rem}.app{min-height:100vh;display:flex;flex-direction:column}.topbar{position:sticky;top:0;z-index:10;background:color-mix(in srgb,var(--bg) 88%,transparent);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}.topbar-inner{max-width:980px;margin:0 auto;display:flex;align-items:center;gap:12px;padding:10px 16px}.brand{font-weight:800;font-size:1.1rem;color:var(--ink);display:flex;align-items:center;gap:8px;white-space:nowrap}.brand-mark{width:30px;height:30px;border-radius:9px;background:var(--accent);color:#fff;display:grid;place-items:center;font-size:.95rem;font-weight:800}.nav{display:flex;gap:4px;margin-left:auto}.nav a{padding:7px 12px;border-radius:10px;color:var(--ink-2);font-weight:600;font-size:.95rem}.nav a.on{background:var(--accent-soft-2);color:var(--accent)}main{flex:1;width:100%;max-width:980px;margin:0 auto;padding:18px 16px 96px}.bottomnav{display:none}@media (max-width: 720px){.nav{display:none}.bottomnav{display:flex;position:fixed;bottom:0;left:0;right:0;z-index:20;background:var(--surface);border-top:1px solid var(--line);padding:6px 4px calc(6px + env(safe-area-inset-bottom))}.bottomnav a{flex:1;display:flex;flex-direction:column;align-items:center;gap:2px;font-size:.72rem;color:var(--muted);font-weight:600;padding:4px 0}.bottomnav a.on{color:var(--accent)}.bottomnav svg{width:22px;height:22px}}.card{background:var(--surface);border-radius:var(--radius);box-shadow:var(--shadow);border:1px solid var(--ring);padding:16px}.stack{display:flex;flex-direction:column;gap:14px}.row{display:flex;gap:10px;align-items:center;flex-wrap:wrap}.grid2{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:14px}.grid3{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:10px}.muted{color:var(--muted)}.small{font-size:.86rem}.tiny{font-size:.76rem}.spacer{flex:1}.btn{border:0;border-radius:12px;padding:11px 18px;font-weight:700;background:var(--accent);color:var(--accent-ink);display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;transition:transform .05s ease,filter .15s}.btn:hover{filter:brightness(1.06)}.btn:active{transform:translateY(1px)}.btn:disabled{opacity:.45;cursor:default}.btn.secondary{background:var(--surface-2);color:var(--ink)}.btn.ghost{background:transparent;color:var(--accent);padding:8px 10px;min-height:36px}.btn.good{background:var(--good)}.btn.block{width:100%}.chip{display:inline-flex;align-items:center;gap:6px;padding:3px 10px;border-radius:999px;font-size:.78rem;font-weight:700;background:var(--surface-2);color:var(--ink-2);white-space:nowrap}.dot{width:10px;height:10px;border-radius:50%;display:inline-block;flex:none}.field{display:flex;flex-direction:column;gap:5px}.field label{font-size:.84rem;color:var(--ink-2);font-weight:600}.input,select.input{border:1.5px solid var(--line);background:var(--surface);color:var(--ink);border-radius:11px;padding:10px 12px;min-height:44px;outline:none;width:100%}.input:focus{border-color:var(--accent)}.seg{display:inline-flex;background:var(--surface-2);border-radius:12px;padding:3px;gap:2px;flex-wrap:wrap}.seg button{border:0;background:transparent;color:var(--ink-2);padding:7px 12px;border-radius:9px;font-weight:600;font-size:.9rem}.seg button.on{background:var(--surface);color:var(--ink);box-shadow:0 1px 2px #00000014}.zh-sub{display:block;color:var(--ink-2);font-size:.9em;margin-top:2px}.progress{height:8px;border-radius:999px;background:var(--surface-2);overflow:hidden}.progress>div{height:100%;border-radius:999px;background:var(--accent);transition:width .3s}.hero{background:linear-gradient(135deg,var(--accent) 0%,#4a3aa7 100%);color:#fff;border-radius:18px;padding:20px}.hero .muted{color:#fffc}.stat{background:var(--surface);border:1px solid var(--ring);border-radius:var(--radius);padding:12px 14px}.stat .v{font-size:1.6rem;font-weight:800;line-height:1.1}.stat .l{font-size:.8rem;color:var(--muted);font-weight:600}.domain{margin-bottom:18px}.skill-tiles{display:grid;grid-template-columns:repeat(auto-fill,minmax(210px,1fr));gap:8px}.skill-tile{display:flex;gap:10px;align-items:center;background:var(--surface);border:1px solid var(--ring);border-radius:12px;padding:10px 12px;color:var(--ink);text-align:left;min-height:56px}.skill-tile:hover{border-color:var(--accent)}.skill-tile .bar{width:6px;align-self:stretch;border-radius:4px;flex:none}.skill-tile .t{font-weight:650;font-size:.93rem;line-height:1.25}.grade-pills{display:flex;gap:6px;overflow-x:auto;padding-bottom:4px;scrollbar-width:none}.grade-pills button{flex:none;border:1.5px solid var(--line);background:var(--surface);color:var(--ink-2);border-radius:12px;min-width:46px;height:46px;font-weight:800;position:relative}.grade-pills button.on{border-color:var(--accent);background:var(--accent);color:#fff}.grade-pills .mini{position:absolute;left:6px;right:6px;bottom:5px;height:3px;border-radius:3px;background:var(--surface-2);overflow:hidden}.grade-pills .mini>i{display:block;height:100%;background:var(--good)}.qcard{background:var(--surface);border-radius:18px;border:1px solid var(--ring);box-shadow:var(--shadow);padding:18px}.qprompt{font-size:1.14rem;font-weight:600;line-height:1.55}.qprompt .katex{font-size:1.12em}.qvisual{display:flex;justify-content:center;margin:14px 0 4px;overflow-x:auto}.qvisual svg{max-width:100%;height:auto}.answer-row{display:flex;gap:8px;margin-top:14px;flex-wrap:wrap;align-items:flex-end}.answer-input{flex:1;min-width:140px;font-size:1.25rem;font-weight:700;padding:10px 14px;border-radius:12px;border:2px solid var(--line);background:var(--surface);color:var(--ink);min-height:52px;outline:none}.answer-input:focus{border-color:var(--accent)}.answer-input.ok{border-color:var(--good);background:var(--good-soft)}.answer-input.no{border-color:var(--bad);background:var(--bad-soft)}.multi-field{display:flex;flex-direction:column;gap:4px;flex:1;min-width:110px}.multi-field span{font-size:.8rem;font-weight:700;color:var(--ink-2)}.keypad{display:flex;flex-wrap:wrap;align-items:flex-start;gap:6px;margin-top:10px}.keypad-grid{flex:none;display:grid;grid-template-columns:repeat(3,62px);gap:6px}.keypad-grid .k0{grid-column:2}.keypad-grid.letters{grid-template-columns:repeat(4,62px)}.keypad-side{flex:none;display:grid;grid-template-columns:repeat(var(--cols, 1),62px);grid-auto-rows:46px;gap:6px}.keypad button{width:100%;border:1px solid var(--line);background:var(--surface);color:var(--ink);border-radius:12px;min-width:56px;height:46px;font-weight:800;font-size:1.25rem;box-shadow:0 2px 0 var(--line);touch-action:manipulation;-webkit-tap-highlight-color:transparent}.keypad button:active{transform:translateY(2px);box-shadow:none}.keypad button.sym{background:var(--accent-soft-2);color:var(--accent)}.keypad button.del{background:var(--surface-2)}.keypad-hint{flex-basis:100%}.choices{display:grid;grid-template-columns:repeat(auto-fit,minmax(130px,1fr));gap:8px;margin-top:14px}.choice{border:2px solid var(--line);background:var(--surface);color:var(--ink);border-radius:12px;padding:12px;min-height:52px;font-weight:650;font-size:1.05rem}.choice.sel{border-color:var(--accent);background:var(--accent-soft-2)}.choice.ok{border-color:var(--good);background:var(--good-soft)}.choice.no{border-color:var(--bad);background:var(--bad-soft)}.feedback{margin-top:14px;border-radius:12px;padding:12px 14px}.feedback.ok{background:var(--good-soft)}.feedback.no{background:var(--bad-soft)}.feedback .head{font-weight:800;display:flex;align-items:center;gap:8px}.solution{margin-top:10px;padding-left:14px;border-left:3px solid var(--accent)}.solution p{margin:4px 0}.hintbox{margin-top:10px;background:var(--warn-soft);border-radius:12px;padding:10px 12px}.lesson h2{margin-top:6px}.rule{background:var(--accent-soft-2);border-left:4px solid var(--accent);border-radius:10px;padding:12px 14px;font-weight:600}.example{background:var(--surface-2);border-radius:12px;padding:12px 14px}.example .steps p{margin:4px 0}.widget{background:var(--surface);border:1px dashed var(--axis);border-radius:14px;padding:14px}.widget input[type=range]{width:100%;accent-color:var(--accent)}.caption{color:var(--ink-2);font-size:.88rem;text-align:center}.viz .vs{stroke:var(--v-stroke);stroke-width:1.4}.viz .vsf{fill:var(--v-stroke)}.viz .vf{fill:var(--v-fill)}.viz .vf-soft{fill:var(--v-fill-soft)}.viz .ve{fill:var(--v-empty)}.viz .va,.viz .va-t{fill:var(--v-accent)}.viz .va-s{stroke:var(--v-accent)}.viz .vt{fill:var(--ink);font-family:var(--font);font-size:14px}.viz .vm{fill:var(--muted);font-family:var(--font)}.viz .vg{stroke:var(--v-grid);stroke-width:1}.viz line.vs,.viz path.vs,.viz polyline.vs{fill:none}.viz path.vf-soft.vs,.viz rect.vs,.viz circle.vs,.viz polygon.vs,.viz path.ve.vs,.viz path.vf.vs{stroke:var(--v-stroke)}.viz path.vf{fill:var(--v-fill)}.viz path.vf-soft{fill:var(--v-fill-soft)}.viz path.ve{fill:var(--v-empty)}.viz path.va{fill:var(--v-accent)}.chart{width:100%;overflow:visible}.chart .grid{stroke:var(--line);stroke-width:1}.chart .axis{stroke:var(--axis)}.chart text{fill:var(--muted);font-size:11px;font-family:var(--font);font-variant-numeric:tabular-nums}.chart .series{stroke:var(--accent);stroke-width:2;fill:none}.chart .bar{fill:var(--accent)}.chart .hit{fill:transparent}.chart-tip{position:absolute;pointer-events:none;background:var(--ink);color:var(--surface);font-size:.78rem;font-weight:600;padding:5px 8px;border-radius:8px;white-space:nowrap;transform:translate(-50%,-115%)}.legend{display:flex;gap:12px;flex-wrap:wrap;font-size:.8rem;color:var(--ink-2)}.legend span{display:inline-flex;gap:6px;align-items:center}.heat{display:grid;grid-template-columns:repeat(auto-fill,minmax(14px,1fr));gap:3px}.heat a{aspect-ratio:1;border-radius:3px;display:block}table.plain{width:100%;border-collapse:collapse;font-size:.9rem}table.plain td,table.plain th{padding:7px 6px;border-bottom:1px solid var(--line);text-align:left}table.plain th{color:var(--muted);font-weight:700;font-size:.78rem}.print-only{display:none}@page{size:A4;margin:14mm 14mm 16mm}@media print{:root{--bg: #fff;--surface: #fff;--v-fill: #bbb;--v-fill-soft: #eee}.topbar,.bottomnav,.no-print{display:none!important}.print-only{display:block}main{padding:0;max-width:none}.qcard{box-shadow:none;border:0;border-bottom:1px solid #ccc;border-radius:0;padding:10px 0 16px;break-inside:avoid}.page-break{break-before:page}body{font-size:12pt}}.medal-svg{display:block;flex:none;margin:0 auto;overflow:visible}.medal-svg .m-sweep{animation:medal-sweep 2.6s ease-in-out .6s infinite}@keyframes medal-sweep{0%{transform:skew(-18deg) translate(-30px)}55%,to{transform:skew(-18deg) translate(150px)}}.medal-svg.locked{color:color-mix(in srgb,var(--muted) 55%,transparent)}.m-lock-rim{fill:var(--surface-2);stroke:color-mix(in srgb,var(--muted) 75%,transparent);stroke-width:1.4;stroke-dasharray:3 3}.m-lock-face{fill:color-mix(in srgb,var(--surface-2) 70%,var(--line))}.m-lock-icon{opacity:.7}.m-lock-badge{fill:var(--surface);stroke:color-mix(in srgb,var(--muted) 50%,transparent);stroke-width:1.2}.m-lock-glyph{fill:var(--muted)}.m-lock-shackle{stroke:var(--muted);stroke-width:1.8}.lvl-emblem{position:relative;flex:none;display:grid;place-items:center}.lvl-emblem:before,.lvl-emblem:after{content:"";position:absolute;clip-path:polygon(50% 0,93% 25%,93% 75%,50% 100%,7% 75%,7% 25%)}.lvl-emblem:before{top:0;right:0;bottom:0;left:0;background:linear-gradient(145deg,var(--c1),var(--c3) 55%,var(--c2));filter:drop-shadow(0 2px 3px rgba(0,0,0,.25))}.lvl-emblem:after{top:9%;right:9%;bottom:9%;left:9%;background:radial-gradient(circle at 35% 30%,#fff,var(--c1) 45%,var(--c2))}.lvl-animal{position:relative;z-index:1;line-height:1;filter:drop-shadow(0 1px 1px rgba(0,0,0,.2))}.lvl-num{position:absolute;z-index:2;bottom:-4px;right:-6px;min-width:22px;height:22px;padding:0 5px;border-radius:999px;display:grid;place-items:center;font-size:.72rem;font-weight:900;color:#fff;background:linear-gradient(180deg,#34406a,#141a2e);border:2px solid var(--surface)}.tier-pill{display:inline-block;margin:6px auto;padding:2px 12px;border-radius:999px;font-size:.75rem;font-weight:800;letter-spacing:.04em;text-transform:uppercase;color:var(--ink, #333);background:linear-gradient(135deg,var(--c1),var(--c2) 60%,var(--c3));box-shadow:inset 0 1px #fff9,0 1px 2px #00000026}.tier-pill.locked{color:var(--muted);background:var(--surface);box-shadow:inset 0 0 0 1px var(--line);text-transform:none;letter-spacing:0}.tier-track{display:flex;justify-content:center;gap:5px;margin:2px 0 6px}.tier-track i{width:10px;height:10px;transform:rotate(45deg);border-radius:2px;background:var(--surface);box-shadow:inset 0 0 0 1.5px color-mix(in srgb,var(--muted) 45%,transparent)}.tier-track i.on{background:linear-gradient(135deg,var(--c1),var(--c2) 55%,var(--c3));box-shadow:0 0 0 1px #00000014,0 1px 2px #0003}.tier-track i.next{animation:next-pulse 1.8s ease-in-out infinite}@keyframes next-pulse{50%{box-shadow:inset 0 0 0 1.5px var(--v-accent),0 0 0 3px color-mix(in srgb,var(--v-accent) 25%,transparent)}}.confetti{position:fixed;top:0;right:0;bottom:0;left:0;pointer-events:none;overflow:hidden;z-index:60}.confetti i{position:absolute;top:-12px;border-radius:2px;animation-name:confetti-fall;animation-timing-function:cubic-bezier(.25,.6,.5,1);animation-fill-mode:forwards}@keyframes confetti-fall{0%{transform:translate(0) rotate(0);opacity:1}to{transform:translate(var(--drift),105vh) rotate(var(--rot));opacity:.85}}.cele-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;z-index:50;display:grid;place-items:center;padding:16px;background:#0a0a1473;animation:fade-in .2s ease-out}.cele-card{position:relative;z-index:61;width:min(380px,100%);background:var(--surface);color:var(--ink);border-radius:22px;padding:22px 20px;text-align:center;box-shadow:0 12px 40px #0000004d}.cele-kicker{font-weight:800;letter-spacing:.04em;text-transform:uppercase;color:var(--v-accent);font-size:.85rem}.cele-stage{position:relative;width:210px;height:200px;margin:4px auto 0;display:grid;place-items:center}.cele-rays{position:absolute;top:-10px;right:-10px;bottom:-10px;left:-10px;border-radius:50%;background:repeating-conic-gradient(from 0deg,color-mix(in srgb,var(--glow) 55%,transparent) 0 8deg,transparent 8deg 22deg);-webkit-mask:radial-gradient(circle,#000 18%,transparent 68%);mask:radial-gradient(circle,#000 18%,transparent 68%);animation:rays-spin 14s linear infinite,fade-in .6s ease-out}.cele-stage:before{content:"";position:absolute;width:62%;height:62%;border-radius:50%;background:radial-gradient(circle,color-mix(in srgb,var(--glow) 70%,#fff) 0,transparent 70%);filter:blur(6px)}@keyframes rays-spin{to{transform:rotate(360deg)}}.sparkles{position:absolute;top:0;right:0;bottom:0;left:0;pointer-events:none}.sparkles i{position:absolute;font-style:normal;font-size:18px;color:var(--glow);text-shadow:0 0 6px #fff;opacity:0;animation:twinkle 1.8s ease-in-out infinite}@keyframes twinkle{0%,to{opacity:0;transform:scale(.3) rotate(0)}50%{opacity:1;transform:scale(1.1) rotate(90deg)}}.cele-medal{position:relative;perspective:600px;animation:medal-in 1s cubic-bezier(.2,1.3,.4,1) both,medal-float 3s ease-in-out 1.1s infinite}@keyframes medal-float{0%,to{transform:translateY(0) rotate(0)}50%{transform:translateY(-6px) rotate(-2deg)}}.cele-card:focus{outline:none}.btn.arming{position:relative;isolation:isolate;overflow:hidden;opacity:1;cursor:default;color:color-mix(in srgb,var(--accent-ink) 75%,transparent);background:color-mix(in srgb,var(--accent) 45%,var(--surface))}.btn.arming:before{content:"";position:absolute;top:0;right:0;bottom:0;left:0;z-index:-1;background:var(--accent);transform-origin:left;animation:arm-fill var(--lock, 1.6s) linear both}@keyframes arm-fill{0%{transform:scaleX(0)}}.cele-big{font-size:4.4rem;line-height:1.1;margin:8px 0}.pop{animation:pop-in .45s cubic-bezier(.2,1.5,.4,1) both}.bounce{animation:bounce 1.2s ease-in-out .3s infinite}@keyframes fade-in{0%{opacity:0}}@keyframes pop-in{0%{transform:scale(.6);opacity:0}}@keyframes medal-in{0%{transform:translateY(-40px) scale(.3) rotateY(540deg);opacity:0}65%{transform:translateY(4px) scale(1.1) rotateY(-12deg);opacity:1}to{transform:none}}@keyframes bounce{0%,to{transform:translateY(0)}50%{transform:translateY(-10px)}}.toast{position:fixed;z-index:62;left:50%;top:72px;transform:translate(-50%);max-width:calc(100% - 32px);background:var(--warn);color:#1b1200;font-weight:800;padding:12px 18px;border-radius:999px;box-shadow:0 8px 24px #0003;cursor:pointer;text-align:center}.toast.pop{animation:toast-in .45s cubic-bezier(.2,1.5,.4,1) both}@keyframes toast-in{0%{transform:translate(-50%,-30px) scale(.8);opacity:0}}.reward-strip{gap:12px}.xpbar{height:10px;margin:6px 0 3px;border-radius:999px;background:var(--surface-2);overflow:hidden}.xpbar>div{height:100%;border-radius:999px;background:linear-gradient(90deg,var(--warn),var(--v-accent));transition:width .8s cubic-bezier(.2,.8,.2,1)}.xpbar.thin{height:6px;margin:6px 0 2px}.reward-row{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}.reward-item{display:flex;flex-direction:column;align-items:center;gap:2px;text-align:center;text-decoration:none}.reward-item b{font-size:1.15rem}.flame{font-size:1.9rem;line-height:56px;height:56px;filter:grayscale(1);opacity:.4}.flame.lit{filter:none;opacity:1;animation:flicker 2.4s ease-in-out infinite;transform-origin:50% 80%}@keyframes flicker{0%,to{transform:scale(1) rotate(0)}30%{transform:scale(1.08) rotate(-3deg)}60%{transform:scale(.97) rotate(2deg)}}.ring{position:relative;display:grid;place-items:center}.ring svg{position:absolute;top:0;right:0;bottom:0;left:0}.ring-bg{stroke:var(--surface-2)}.ring-fg{stroke:var(--accent);transition:stroke-dashoffset .8s cubic-bezier(.2,.8,.2,1)}.ring-fg.done{stroke:var(--warn)}.ring-c{position:relative;font-weight:800}.badges-h1{display:flex;align-items:center;gap:10px}.badges-h1 .medal-svg{margin:0}.strip-medal{height:56px;display:grid;place-items:center}.badge-total{display:grid;gap:2px;font-weight:700;font-size:.9rem}.badge-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(156px,1fr));gap:12px}.badge-card{position:relative;display:flex;flex-direction:column;align-items:center;font:inherit;color:inherit;cursor:pointer;background:radial-gradient(120% 70% at 50% 0%,color-mix(in srgb,var(--glow) 22%,transparent),transparent 62%),var(--surface);border:1px solid var(--ring);border-radius:18px;padding:14px 10px 10px;text-align:center;box-shadow:0 1px 2px #0000000a;transition:transform .18s,box-shadow .18s}.badge-card:hover,.badge-card:focus-visible{transform:translateY(-3px);box-shadow:0 8px 20px #0000001a}.badge-card.is-locked{background:var(--surface-2)}.badge-card.is-max:after{content:"★";position:absolute;top:8px;right:10px;color:var(--glow);font-size:.9rem}.badge-title{font-weight:800;margin-top:4px;line-height:1.2}.badge-next{min-height:34px;display:grid;place-items:center;line-height:1.25}.badge-card .next-bar{width:100%}.badge-card .next-bar>div{background:linear-gradient(90deg,var(--n1),var(--n2))}.badge-detail{max-height:calc(100vh - 32px);overflow:auto}.tier-ladder{list-style:none;margin:0 0 14px;padding:0;display:grid;gap:6px}.tier-ladder li{display:flex;align-items:center;gap:10px;padding:6px 10px;border-radius:12px;background:var(--surface-2)}.tier-ladder li.reached{background:color-mix(in srgb,var(--good, #0ca30c) 12%,var(--surface))}.tier-ladder li.next{box-shadow:inset 0 0 0 2px color-mix(in srgb,var(--v-accent) 60%,transparent)}.tier-state{font-weight:800;font-size:.85rem;white-space:nowrap}.tier-ladder li.reached .tier-state{color:var(--good-ink, #0a7a0a)}.xp-pop-wrap{position:relative;height:0;z-index:5}.xp-pop,.combo{position:absolute;right:8px;top:-6px;font-weight:800;pointer-events:none;white-space:nowrap}.xp-pop{color:var(--v-accent);font-size:1.25rem;animation:xp-float 1.4s ease-out forwards}.combo{top:22px;color:var(--good-ink);animation:pop-in .4s cubic-bezier(.2,1.5,.4,1) both}.combo.big{font-size:1.2rem;color:var(--v-accent)}@keyframes xp-float{0%{transform:translateY(10px) scale(.7);opacity:0}20%{transform:translateY(0) scale(1.15);opacity:1}to{transform:translateY(-34px) scale(1);opacity:0}}@media (prefers-reduced-motion: reduce){.confetti{display:none}.pop,.toast.pop,.bounce,.cele-medal,.flame.lit,.medal-svg .m-sweep,.btn.arming:before,.cele-rays,.sparkles i,.tier-track i.next,.xp-pop,.combo{animation:none}.xp-pop{opacity:1}}.qhead{display:flex;align-items:flex-start;gap:8px}.qhead .qprompt{flex:1;min-width:0}.speak-btn{flex:none;width:42px;height:42px;border-radius:50%;border:1px solid var(--ring);background:var(--accent-soft-2);font-size:1.2rem;cursor:pointer;display:grid;place-items:center}.speak-btn.on{background:var(--accent);animation:speak-pulse 1.1s ease-in-out infinite}@keyframes speak-pulse{0%,to{box-shadow:0 0 #2a78d673}50%{box-shadow:0 0 0 8px #2a78d600}}@media print{.speak-btn{display:none}}@media (prefers-reduced-motion: reduce){.speak-btn.on{animation:none}}.lang-chips{display:flex;flex-wrap:wrap;gap:6px}.lang-chips .chip{cursor:pointer;border:1px solid var(--ring);font-size:.95rem;padding:6px 12px}.lang-chips .chip.on{background:var(--accent);color:var(--accent-ink);border-color:var(--accent)}.limits-row{display:flex;flex-wrap:wrap;gap:8px 16px}.limit-field{display:flex;align-items:center;gap:8px}.limit-field select{min-width:70px;padding:6px 8px;border-radius:10px;border:1px solid var(--line);background:var(--surface);color:var(--ink);font:inherit;font-weight:700}.child-row{padding:10px 0;border-bottom:1px solid var(--line)}.avatar{display:inline-grid;place-items:center;flex:none;border-radius:50%;line-height:1;box-shadow:inset 0 -3px #0000000f}.avatar-picker{display:grid;grid-template-columns:repeat(auto-fill,minmax(44px,1fr));gap:6px}.avatar-picker button{height:44px;font-size:1.5rem;border-radius:12px;border:2px solid transparent;background:var(--surface-2);cursor:pointer}.avatar-picker button.on{border-color:var(--accent);background:var(--accent-soft-2)}.who h1{margin:12px 0 4px}.who-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:14px}.who-tile{display:flex;flex-direction:column;align-items:center;gap:6px;padding:18px 10px 14px;border-radius:22px;border:2px solid var(--ring);background:var(--surface);color:var(--ink);font:inherit;font-size:1.1rem;cursor:pointer;transition:transform .15s,box-shadow .15s}.who-tile:hover,.who-tile:focus-visible{transform:translateY(-3px) scale(1.02);box-shadow:0 10px 24px #0000001a}.who-tile.on{border-color:var(--accent)}.who-tile.parent{border-style:dashed}.person-chip{display:flex;align-items:center;gap:6px;margin-left:auto;padding:3px 10px 3px 3px;border-radius:999px;border:1px solid var(--line);background:var(--surface);color:var(--ink);font:inherit;font-weight:700;cursor:pointer}.person-name{max-width:9em;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.child-card{display:flex;flex-direction:column;gap:8px;padding:12px 0;border-bottom:1px solid var(--line)}.avatar-btn{padding:0;border:0;background:none;cursor:pointer}.edit-box{padding:12px;border-radius:14px;background:var(--surface-2)}.family-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:12px}.family-stats{display:flex;flex-wrap:wrap;gap:4px 14px;font-size:.9rem}.parent-cta{text-decoration:none;color:inherit;border:2px solid var(--accent)}.icon-btn{min-width:46px;padding-left:10px;padding-right:10px;font-size:1.2rem}nav[hidden]{display:none!important}
