@font-face{font-display:block;font-family:KaTeX_AMS;font-style:normal;font-weight:400;src:url(/_next/static/media/KaTeX_AMS-Regular.BQhdFMY1.woff2)format("woff2"),url(/_next/static/media/KaTeX_AMS-Regular.DMm9YOAa.woff)format("woff"),url(/_next/static/media/KaTeX_AMS-Regular.DRggAlZN.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Caligraphic;font-style:normal;font-weight:700;src:url(/_next/static/media/KaTeX_Caligraphic-Bold.Dq_IR9rO.woff2)format("woff2"),url(/_next/static/media/KaTeX_Caligraphic-Bold.BEiXGLvX.woff)format("woff"),url(/_next/static/media/KaTeX_Caligraphic-Bold.ATXxdsX0.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Caligraphic;font-style:normal;font-weight:400;src:url(/_next/static/media/KaTeX_Caligraphic-Regular.Di6jR-x-.woff2)format("woff2"),url(/_next/static/media/KaTeX_Caligraphic-Regular.CTRA-rTL.woff)format("woff"),url(/_next/static/media/KaTeX_Caligraphic-Regular.wX97UBjC.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Fraktur;font-style:normal;font-weight:700;src:url(/_next/static/media/KaTeX_Fraktur-Bold.CL6g_b3V.woff2)format("woff2"),url(/_next/static/media/KaTeX_Fraktur-Bold.BsDP51OF.woff)format("woff"),url(/_next/static/media/KaTeX_Fraktur-Bold.BdnERNNW.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Fraktur;font-style:normal;font-weight:400;src:url(/_next/static/media/KaTeX_Fraktur-Regular.CTYiF6lA.woff2)format("woff2"),url(/_next/static/media/KaTeX_Fraktur-Regular.Dxdc4cR9.woff)format("woff"),url(/_next/static/media/KaTeX_Fraktur-Regular.CB_wures.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:normal;font-weight:700;src:url(/_next/static/media/KaTeX_Main-Bold.Cx986IdX.woff2)format("woff2"),url(/_next/static/media/KaTeX_Main-Bold.Jm3AIy58.woff)format("woff"),url(/_next/static/media/KaTeX_Main-Bold.waoOVXN0.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:italic;font-weight:700;src:url(/_next/static/media/KaTeX_Main-BoldItalic.DxDJ3AOS.woff2)format("woff2"),url(/_next/static/media/KaTeX_Main-BoldItalic.SpSLRI95.woff)format("woff"),url(/_next/static/media/KaTeX_Main-BoldItalic.DzxPMmG6.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:italic;font-weight:400;src:url(/_next/static/media/KaTeX_Main-Italic.NWA7e6Wa.woff2)format("woff2"),url(/_next/static/media/KaTeX_Main-Italic.BMLOBm91.woff)format("woff"),url(/_next/static/media/KaTeX_Main-Italic.3WenGoN9.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:normal;font-weight:400;src:url(/_next/static/media/KaTeX_Main-Regular.B22Nviop.woff2)format("woff2"),url(/_next/static/media/KaTeX_Main-Regular.Dr94JaBh.woff)format("woff"),url(/_next/static/media/KaTeX_Main-Regular.ypZvNtVU.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Math;font-style:italic;font-weight:700;src:url(/_next/static/media/KaTeX_Math-BoldItalic.CZnvNsCZ.woff2)format("woff2"),url(/_next/static/media/KaTeX_Math-BoldItalic.iY-2wyZ7.woff)format("woff"),url(/_next/static/media/KaTeX_Math-BoldItalic.B3XSjfu4.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Math;font-style:italic;font-weight:400;src:url(/_next/static/media/KaTeX_Math-Italic.t53AETM-.woff2)format("woff2"),url(/_next/static/media/KaTeX_Math-Italic.DA0__PXp.woff)format("woff"),url(/_next/static/media/KaTeX_Math-Italic.flOr_0UB.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_SansSerif;font-style:normal;font-weight:700;src:url(/_next/static/media/KaTeX_SansSerif-Bold.D1sUS0GD.woff2)format("woff2"),url(/_next/static/media/KaTeX_SansSerif-Bold.DbIhKOiC.woff)format("woff"),url(/_next/static/media/KaTeX_SansSerif-Bold.CFMepnvq.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_SansSerif;font-style:italic;font-weight:400;src:url(/_next/static/media/KaTeX_SansSerif-Italic.C3H0VqGB.woff2)format("woff2"),url(/_next/static/media/KaTeX_SansSerif-Italic.DN2j7dab.woff)format("woff"),url(/_next/static/media/KaTeX_SansSerif-Italic.YYjJ1zSn.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_SansSerif;font-style:normal;font-weight:400;src:url(/_next/static/media/KaTeX_SansSerif-Regular.DDBCnlJ7.woff2)format("woff2"),url(/_next/static/media/KaTeX_SansSerif-Regular.CS6fqUqJ.woff)format("woff"),url(/_next/static/media/KaTeX_SansSerif-Regular.BNo7hRIc.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Script;font-style:normal;font-weight:400;src:url(/_next/static/media/KaTeX_Script-Regular.D3wIWfF6.woff2)format("woff2"),url(/_next/static/media/KaTeX_Script-Regular.D5yQViql.woff)format("woff"),url(/_next/static/media/KaTeX_Script-Regular.C5JkGWo-.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size1;font-style:normal;font-weight:400;src:url(/_next/static/media/KaTeX_Size1-Regular.mCD8mA8B.woff2)format("woff2"),url(/_next/static/media/KaTeX_Size1-Regular.C195tn64.woff)format("woff"),url(/_next/static/media/KaTeX_Size1-Regular.Dbsnue_I.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size2;font-style:normal;font-weight:400;src:url(/_next/static/media/KaTeX_Size2-Regular.Dy4dx90m.woff2)format("woff2"),url(/_next/static/media/KaTeX_Size2-Regular.oD1tc_U0.woff)format("woff"),url(/_next/static/media/KaTeX_Size2-Regular.B7gKUWhC.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size3;font-style:normal;font-weight:400;src:url(data:font/woff2;base64,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)format("woff2"),url(/_next/static/media/KaTeX_Size3-Regular.CTq5MqoE.woff)format("woff"),url(/_next/static/media/KaTeX_Size3-Regular.DgpXs0kz.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size4;font-style:normal;font-weight:400;src:url(/_next/static/media/KaTeX_Size4-Regular.Dl5lxZxV.woff2)format("woff2"),url(/_next/static/media/KaTeX_Size4-Regular.BF-4gkZK.woff)format("woff"),url(/_next/static/media/KaTeX_Size4-Regular.DWFBv043.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Typewriter;font-style:normal;font-weight:400;src:url(/_next/static/media/KaTeX_Typewriter-Regular.CO6r4hn1.woff2)format("woff2"),url(/_next/static/media/KaTeX_Typewriter-Regular.C0xS9mPB.woff)format("woff"),url(/_next/static/media/KaTeX_Typewriter-Regular.D3Ib7_Hf.ttf)format("truetype")}.katex{text-indent:0;text-rendering:auto;font:1.21em/1.2 KaTeX_Main,Times New Roman,serif;position:relative}.katex *{border-color:currentColor;-ms-high-contrast-adjust:none!important}.katex .katex-version:after{content:"0.18.4"}.katex .katex-mathml{clip-path:inset(50%);border:0;width:1px;height:1px;padding:0;position:absolute;overflow:hidden}.katex .katex-html>.katex-newline{display:block}.katex .katex-base{white-space:nowrap;width:min-content;position:relative}.katex .katex-base,.katex .katex-strut{display:inline-block}.katex .textbf{font-weight:700}.katex .textit{font-style:italic}.katex .textrm{font-family:KaTeX_Main}.katex .textsf{font-family:KaTeX_SansSerif}.katex .texttt{font-family:KaTeX_Typewriter}.katex .mathnormal{font-family:KaTeX_Math;font-style:italic}.katex .mathit{font-family:KaTeX_Main;font-style:italic}.katex .mathrm{font-style:normal}.katex .mathbf{font-family:KaTeX_Main;font-weight:700}.katex .boldsymbol{font-family:KaTeX_Math;font-style:italic;font-weight:700}.katex .amsrm,.katex .mathbb,.katex .textbb{font-family:KaTeX_AMS}.katex .mathcal{font-family:KaTeX_Caligraphic}.katex .mathfrak,.katex .textfrak{font-family:KaTeX_Fraktur}.katex .mathboldfrak,.katex .textboldfrak{font-family:KaTeX_Fraktur;font-weight:700}.katex .mathtt{font-family:KaTeX_Typewriter}.katex .mathscr,.katex .textscr{font-family:KaTeX_Script}.katex .mathsf,.katex .textsf{font-family:KaTeX_SansSerif}.katex .mathboldsf,.katex .textboldsf{font-family:KaTeX_SansSerif;font-weight:700}.katex .mathitsf,.katex .mathsfit,.katex .textitsf{font-family:KaTeX_SansSerif;font-style:italic}.katex .mainrm{font-family:KaTeX_Main;font-style:normal}.katex .vlist-t{border-collapse:collapse;table-layout:fixed;display:inline-table}.katex .vlist-r{display:table-row}.katex .vlist{vertical-align:bottom;display:table-cell;position:relative}.katex .vlist>span{height:0;display:block;position:relative}.katex .vlist>span>span{display:inline-block}.katex .vlist>span>.pstrut{width:0;overflow:hidden}.katex .vlist-t2{margin-right:-2px}.katex .vlist-s{vertical-align:bottom;width:2px;min-width:2px;font-size:1px;display:table-cell}.katex .katex-vbox{flex-direction:column;align-items:baseline;display:inline-flex}.katex .katex-thinbox{flex-direction:row;width:0;max-width:0;display:inline-flex}.katex .msupsub{text-align:left}.katex .mfrac>span>span{text-align:center}.katex .mfrac .frac-line{border-bottom-style:solid;width:100%;display:inline-block}.katex .katex-hdashline,.katex .katex-hline,.katex .katex-overline .overline-line,.katex .katex-rule,.katex .katex-underline .underline-line,.katex .mfrac .frac-line{min-height:1px}.katex .mspace{display:inline-block}.katex .katex-smash{line-height:0;display:inline}.katex .clap,.katex .llap,.katex .rlap{width:0;position:relative}.katex .clap>.katex-inner,.katex .llap>.katex-inner,.katex .rlap>.katex-inner{position:absolute}.katex .clap>.katex-fix,.katex .llap>.katex-fix,.katex .rlap>.katex-fix{display:inline-block}.katex .llap>.katex-inner{right:0}.katex .clap>.katex-inner,.katex .rlap>.katex-inner{left:0}.katex .clap>.katex-inner>span{margin-left:-50%;margin-right:50%}.katex .katex-rule{border:0 solid;display:inline-block;position:relative}.katex .katex-hline,.katex .katex-overline .overline-line,.katex .katex-underline .underline-line{border-bottom-style:solid;width:100%;display:inline-block}.katex .katex-hdashline{border-bottom-style:dashed;width:100%;display:inline-block}.katex .sqrt>.katex-root{margin-left:.277778em;margin-right:-.555556em}.katex .fontsize-ensurer.reset-size1.size1,.katex .katex-sizing.reset-size1.size1{font-size:1em}.katex .fontsize-ensurer.reset-size1.size2,.katex .katex-sizing.reset-size1.size2{font-size:1.2em}.katex .fontsize-ensurer.reset-size1.size3,.katex .katex-sizing.reset-size1.size3{font-size:1.4em}.katex .fontsize-ensurer.reset-size1.size4,.katex .katex-sizing.reset-size1.size4{font-size:1.6em}.katex .fontsize-ensurer.reset-size1.size5,.katex .katex-sizing.reset-size1.size5{font-size:1.8em}.katex .fontsize-ensurer.reset-size1.size6,.katex .katex-sizing.reset-size1.size6{font-size:2em}.katex .fontsize-ensurer.reset-size1.size7,.katex .katex-sizing.reset-size1.size7{font-size:2.4em}.katex .fontsize-ensurer.reset-size1.size8,.katex .katex-sizing.reset-size1.size8{font-size:2.88em}.katex .fontsize-ensurer.reset-size1.size9,.katex .katex-sizing.reset-size1.size9{font-size:3.456em}.katex .fontsize-ensurer.reset-size1.size10,.katex .katex-sizing.reset-size1.size10{font-size:4.148em}.katex .fontsize-ensurer.reset-size1.size11,.katex .katex-sizing.reset-size1.size11{font-size:4.976em}.katex .fontsize-ensurer.reset-size2.size1,.katex .katex-sizing.reset-size2.size1{font-size:.833333em}.katex .fontsize-ensurer.reset-size2.size2,.katex .katex-sizing.reset-size2.size2{font-size:1em}.katex .fontsize-ensurer.reset-size2.size3,.katex .katex-sizing.reset-size2.size3{font-size:1.16667em}.katex .fontsize-ensurer.reset-size2.size4,.katex .katex-sizing.reset-size2.size4{font-size:1.33333em}.katex .fontsize-ensurer.reset-size2.size5,.katex .katex-sizing.reset-size2.size5{font-size:1.5em}.katex .fontsize-ensurer.reset-size2.size6,.katex .katex-sizing.reset-size2.size6{font-size:1.66667em}.katex .fontsize-ensurer.reset-size2.size7,.katex .katex-sizing.reset-size2.size7{font-size:2em}.katex .fontsize-ensurer.reset-size2.size8,.katex .katex-sizing.reset-size2.size8{font-size:2.4em}.katex .fontsize-ensurer.reset-size2.size9,.katex .katex-sizing.reset-size2.size9{font-size:2.88em}.katex .fontsize-ensurer.reset-size2.size10,.katex .katex-sizing.reset-size2.size10{font-size:3.45667em}.katex .fontsize-ensurer.reset-size2.size11,.katex .katex-sizing.reset-size2.size11{font-size:4.14667em}.katex .fontsize-ensurer.reset-size3.size1,.katex .katex-sizing.reset-size3.size1{font-size:.714286em}.katex .fontsize-ensurer.reset-size3.size2,.katex .katex-sizing.reset-size3.size2{font-size:.857143em}.katex .fontsize-ensurer.reset-size3.size3,.katex .katex-sizing.reset-size3.size3{font-size:1em}.katex .fontsize-ensurer.reset-size3.size4,.katex .katex-sizing.reset-size3.size4{font-size:1.14286em}.katex .fontsize-ensurer.reset-size3.size5,.katex .katex-sizing.reset-size3.size5{font-size:1.28571em}.katex .fontsize-ensurer.reset-size3.size6,.katex .katex-sizing.reset-size3.size6{font-size:1.42857em}.katex .fontsize-ensurer.reset-size3.size7,.katex .katex-sizing.reset-size3.size7{font-size:1.71429em}.katex .fontsize-ensurer.reset-size3.size8,.katex .katex-sizing.reset-size3.size8{font-size:2.05714em}.katex .fontsize-ensurer.reset-size3.size9,.katex .katex-sizing.reset-size3.size9{font-size:2.46857em}.katex .fontsize-ensurer.reset-size3.size10,.katex .katex-sizing.reset-size3.size10{font-size:2.96286em}.katex .fontsize-ensurer.reset-size3.size11,.katex .katex-sizing.reset-size3.size11{font-size:3.55429em}.katex .fontsize-ensurer.reset-size4.size1,.katex .katex-sizing.reset-size4.size1{font-size:.625em}.katex .fontsize-ensurer.reset-size4.size2,.katex .katex-sizing.reset-size4.size2{font-size:.75em}.katex .fontsize-ensurer.reset-size4.size3,.katex .katex-sizing.reset-size4.size3{font-size:.875em}.katex .fontsize-ensurer.reset-size4.size4,.katex .katex-sizing.reset-size4.size4{font-size:1em}.katex .fontsize-ensurer.reset-size4.size5,.katex .katex-sizing.reset-size4.size5{font-size:1.125em}.katex .fontsize-ensurer.reset-size4.size6,.katex .katex-sizing.reset-size4.size6{font-size:1.25em}.katex .fontsize-ensurer.reset-size4.size7,.katex .katex-sizing.reset-size4.size7{font-size:1.5em}.katex .fontsize-ensurer.reset-size4.size8,.katex .katex-sizing.reset-size4.size8{font-size:1.8em}.katex .fontsize-ensurer.reset-size4.size9,.katex .katex-sizing.reset-size4.size9{font-size:2.16em}.katex .fontsize-ensurer.reset-size4.size10,.katex .katex-sizing.reset-size4.size10{font-size:2.5925em}.katex .fontsize-ensurer.reset-size4.size11,.katex .katex-sizing.reset-size4.size11{font-size:3.11em}.katex .fontsize-ensurer.reset-size5.size1,.katex .katex-sizing.reset-size5.size1{font-size:.555556em}.katex .fontsize-ensurer.reset-size5.size2,.katex .katex-sizing.reset-size5.size2{font-size:.666667em}.katex .fontsize-ensurer.reset-size5.size3,.katex .katex-sizing.reset-size5.size3{font-size:.777778em}.katex .fontsize-ensurer.reset-size5.size4,.katex .katex-sizing.reset-size5.size4{font-size:.888889em}.katex .fontsize-ensurer.reset-size5.size5,.katex .katex-sizing.reset-size5.size5{font-size:1em}.katex .fontsize-ensurer.reset-size5.size6,.katex .katex-sizing.reset-size5.size6{font-size:1.11111em}.katex .fontsize-ensurer.reset-size5.size7,.katex .katex-sizing.reset-size5.size7{font-size:1.33333em}.katex .fontsize-ensurer.reset-size5.size8,.katex .katex-sizing.reset-size5.size8{font-size:1.6em}.katex .fontsize-ensurer.reset-size5.size9,.katex .katex-sizing.reset-size5.size9{font-size:1.92em}.katex .fontsize-ensurer.reset-size5.size10,.katex .katex-sizing.reset-size5.size10{font-size:2.30444em}.katex .fontsize-ensurer.reset-size5.size11,.katex .katex-sizing.reset-size5.size11{font-size:2.76444em}.katex .fontsize-ensurer.reset-size6.size1,.katex .katex-sizing.reset-size6.size1{font-size:.5em}.katex .fontsize-ensurer.reset-size6.size2,.katex .katex-sizing.reset-size6.size2{font-size:.6em}.katex .fontsize-ensurer.reset-size6.size3,.katex .katex-sizing.reset-size6.size3{font-size:.7em}.katex .fontsize-ensurer.reset-size6.size4,.katex .katex-sizing.reset-size6.size4{font-size:.8em}.katex .fontsize-ensurer.reset-size6.size5,.katex .katex-sizing.reset-size6.size5{font-size:.9em}.katex .fontsize-ensurer.reset-size6.size6,.katex .katex-sizing.reset-size6.size6{font-size:1em}.katex .fontsize-ensurer.reset-size6.size7,.katex .katex-sizing.reset-size6.size7{font-size:1.2em}.katex .fontsize-ensurer.reset-size6.size8,.katex .katex-sizing.reset-size6.size8{font-size:1.44em}.katex .fontsize-ensurer.reset-size6.size9,.katex .katex-sizing.reset-size6.size9{font-size:1.728em}.katex .fontsize-ensurer.reset-size6.size10,.katex .katex-sizing.reset-size6.size10{font-size:2.074em}.katex .fontsize-ensurer.reset-size6.size11,.katex .katex-sizing.reset-size6.size11{font-size:2.488em}.katex .fontsize-ensurer.reset-size7.size1,.katex .katex-sizing.reset-size7.size1{font-size:.416667em}.katex .fontsize-ensurer.reset-size7.size2,.katex .katex-sizing.reset-size7.size2{font-size:.5em}.katex .fontsize-ensurer.reset-size7.size3,.katex .katex-sizing.reset-size7.size3{font-size:.583333em}.katex .fontsize-ensurer.reset-size7.size4,.katex .katex-sizing.reset-size7.size4{font-size:.666667em}.katex .fontsize-ensurer.reset-size7.size5,.katex .katex-sizing.reset-size7.size5{font-size:.75em}.katex .fontsize-ensurer.reset-size7.size6,.katex .katex-sizing.reset-size7.size6{font-size:.833333em}.katex .fontsize-ensurer.reset-size7.size7,.katex .katex-sizing.reset-size7.size7{font-size:1em}.katex .fontsize-ensurer.reset-size7.size8,.katex .katex-sizing.reset-size7.size8{font-size:1.2em}.katex .fontsize-ensurer.reset-size7.size9,.katex .katex-sizing.reset-size7.size9{font-size:1.44em}.katex .fontsize-ensurer.reset-size7.size10,.katex .katex-sizing.reset-size7.size10{font-size:1.72833em}.katex .fontsize-ensurer.reset-size7.size11,.katex .katex-sizing.reset-size7.size11{font-size:2.07333em}.katex .fontsize-ensurer.reset-size8.size1,.katex .katex-sizing.reset-size8.size1{font-size:.347222em}.katex .fontsize-ensurer.reset-size8.size2,.katex .katex-sizing.reset-size8.size2{font-size:.416667em}.katex .fontsize-ensurer.reset-size8.size3,.katex .katex-sizing.reset-size8.size3{font-size:.486111em}.katex .fontsize-ensurer.reset-size8.size4,.katex .katex-sizing.reset-size8.size4{font-size:.555556em}.katex .fontsize-ensurer.reset-size8.size5,.katex .katex-sizing.reset-size8.size5{font-size:.625em}.katex .fontsize-ensurer.reset-size8.size6,.katex .katex-sizing.reset-size8.size6{font-size:.694444em}.katex .fontsize-ensurer.reset-size8.size7,.katex .katex-sizing.reset-size8.size7{font-size:.833333em}.katex .fontsize-ensurer.reset-size8.size8,.katex .katex-sizing.reset-size8.size8{font-size:1em}.katex .fontsize-ensurer.reset-size8.size9,.katex .katex-sizing.reset-size8.size9{font-size:1.2em}.katex .fontsize-ensurer.reset-size8.size10,.katex .katex-sizing.reset-size8.size10{font-size:1.44028em}.katex .fontsize-ensurer.reset-size8.size11,.katex .katex-sizing.reset-size8.size11{font-size:1.72778em}.katex .fontsize-ensurer.reset-size9.size1,.katex .katex-sizing.reset-size9.size1{font-size:.289352em}.katex .fontsize-ensurer.reset-size9.size2,.katex .katex-sizing.reset-size9.size2{font-size:.347222em}.katex .fontsize-ensurer.reset-size9.size3,.katex .katex-sizing.reset-size9.size3{font-size:.405093em}.katex .fontsize-ensurer.reset-size9.size4,.katex .katex-sizing.reset-size9.size4{font-size:.462963em}.katex .fontsize-ensurer.reset-size9.size5,.katex .katex-sizing.reset-size9.size5{font-size:.520833em}.katex .fontsize-ensurer.reset-size9.size6,.katex .katex-sizing.reset-size9.size6{font-size:.578704em}.katex .fontsize-ensurer.reset-size9.size7,.katex .katex-sizing.reset-size9.size7{font-size:.694444em}.katex .fontsize-ensurer.reset-size9.size8,.katex .katex-sizing.reset-size9.size8{font-size:.833333em}.katex .fontsize-ensurer.reset-size9.size9,.katex .katex-sizing.reset-size9.size9{font-size:1em}.katex .fontsize-ensurer.reset-size9.size10,.katex .katex-sizing.reset-size9.size10{font-size:1.20023em}.katex .fontsize-ensurer.reset-size9.size11,.katex .katex-sizing.reset-size9.size11{font-size:1.43981em}.katex .fontsize-ensurer.reset-size10.size1,.katex .katex-sizing.reset-size10.size1{font-size:.24108em}.katex .fontsize-ensurer.reset-size10.size2,.katex .katex-sizing.reset-size10.size2{font-size:.289296em}.katex .fontsize-ensurer.reset-size10.size3,.katex .katex-sizing.reset-size10.size3{font-size:.337512em}.katex .fontsize-ensurer.reset-size10.size4,.katex .katex-sizing.reset-size10.size4{font-size:.385728em}.katex .fontsize-ensurer.reset-size10.size5,.katex .katex-sizing.reset-size10.size5{font-size:.433944em}.katex .fontsize-ensurer.reset-size10.size6,.katex .katex-sizing.reset-size10.size6{font-size:.48216em}.katex .fontsize-ensurer.reset-size10.size7,.katex .katex-sizing.reset-size10.size7{font-size:.578592em}.katex .fontsize-ensurer.reset-size10.size8,.katex .katex-sizing.reset-size10.size8{font-size:.694311em}.katex .fontsize-ensurer.reset-size10.size9,.katex .katex-sizing.reset-size10.size9{font-size:.833173em}.katex .fontsize-ensurer.reset-size10.size10,.katex .katex-sizing.reset-size10.size10{font-size:1em}.katex .fontsize-ensurer.reset-size10.size11,.katex .katex-sizing.reset-size10.size11{font-size:1.19961em}.katex .fontsize-ensurer.reset-size11.size1,.katex .katex-sizing.reset-size11.size1{font-size:.200965em}.katex .fontsize-ensurer.reset-size11.size2,.katex .katex-sizing.reset-size11.size2{font-size:.241158em}.katex .fontsize-ensurer.reset-size11.size3,.katex .katex-sizing.reset-size11.size3{font-size:.281351em}.katex .fontsize-ensurer.reset-size11.size4,.katex .katex-sizing.reset-size11.size4{font-size:.321543em}.katex .fontsize-ensurer.reset-size11.size5,.katex .katex-sizing.reset-size11.size5{font-size:.361736em}.katex .fontsize-ensurer.reset-size11.size6,.katex .katex-sizing.reset-size11.size6{font-size:.401929em}.katex .fontsize-ensurer.reset-size11.size7,.katex .katex-sizing.reset-size11.size7{font-size:.482315em}.katex .fontsize-ensurer.reset-size11.size8,.katex .katex-sizing.reset-size11.size8{font-size:.578778em}.katex .fontsize-ensurer.reset-size11.size9,.katex .katex-sizing.reset-size11.size9{font-size:.694534em}.katex .fontsize-ensurer.reset-size11.size10,.katex .katex-sizing.reset-size11.size10{font-size:.833601em}.katex .fontsize-ensurer.reset-size11.size11,.katex .katex-sizing.reset-size11.size11{font-size:1em}.katex .delimsizing.size1{font-family:KaTeX_Size1}.katex .delimsizing.size2{font-family:KaTeX_Size2}.katex .delimsizing.size3{font-family:KaTeX_Size3}.katex .delimsizing.size4{font-family:KaTeX_Size4}.katex .delimsizing.mult .delim-size1>span{font-family:KaTeX_Size1}.katex .delimsizing.mult .delim-size4>span{font-family:KaTeX_Size4}.katex .nulldelimiter{width:.12em;display:inline-block}.katex .delimcenter,.katex .op-symbol{position:relative}.katex .op-symbol.small-op{font-family:KaTeX_Size1}.katex .op-symbol.large-op{font-family:KaTeX_Size2}.katex .katex-accent>.vlist-t,.katex .op-limits>.vlist-t{text-align:center}.katex .katex-accent .accent-body{position:relative}.katex .katex-accent .accent-body:not(.accent-full){width:0}.katex .katex-overlay{display:block}.katex .mtable .vertical-separator{min-width:1px;display:inline-block}.katex .mtable .arraycolsep{display:inline-block}.katex .mtable .col-align-c>.vlist-t{text-align:center}.katex .mtable .col-align-l>.vlist-t{text-align:left}.katex .mtable .col-align-r>.vlist-t{text-align:right}.katex .svg-align{text-align:left}.katex svg{fill:currentColor;stroke:currentColor;height:inherit;width:100%;display:block;position:absolute}.katex svg path{stroke:none}.katex svg{fill-rule:nonzero;fill-opacity:1;stroke-width:1px;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1}.katex img{border-style:none;min-width:0;max-width:none;min-height:0;max-height:none}.katex .katex-stretchy{width:100%;display:block;position:relative;overflow:hidden}.katex .katex-stretchy:after,.katex .katex-stretchy:before{content:""}.katex .hide-tail{width:100%;position:relative;overflow:hidden}.katex .halfarrow-left{width:50.2%;position:absolute;left:0;overflow:hidden}.katex .halfarrow-right{width:50.2%;position:absolute;right:0;overflow:hidden}.katex .brace-left{width:25.1%;position:absolute;left:0;overflow:hidden}.katex .brace-center{width:50%;position:absolute;left:25%;overflow:hidden}.katex .brace-right{width:25.1%;position:absolute;right:0;overflow:hidden}.katex .x-arrow-pad{padding:0 .5em}.katex .cd-arrow-pad{padding:0 .55556em 0 .27778em}.katex .mover,.katex .munder,.katex .x-arrow{text-align:center}.katex .boxpad{padding:0 .3em}.katex .fbox,.katex .fcolorbox{box-sizing:border-box;border:.04em solid}.katex .cancel-pad{padding:0 .2em}.katex .cancel-lap{margin-left:-.2em;margin-right:-.2em}.katex .katex-sout{border-bottom-style:solid;border-bottom-width:.08em}.katex .angl{box-sizing:border-box;border-top:.049em solid;border-right:.049em solid;margin-right:.03889em}.katex .anglpad{padding:0 .03889em}.katex .eqn-num:before{content:"(" counter(katexEqnNo) ")";counter-increment:katexEqnNo}.katex .mml-eqn-num:before{content:"(" counter(mmlEqnNo) ")";counter-increment:mmlEqnNo}.katex .mtr-glue{width:50%}.katex .cd-vert-arrow{display:inline-block;position:relative}.katex .cd-label-left{text-align:left;display:inline-block;position:absolute;right:calc(50% + .3em)}.katex .cd-label-right{text-align:right;display:inline-block;position:absolute;left:calc(50% + .3em)}.katex-display{text-align:center;margin:1em 0;display:block}.katex-display>.katex{text-align:center;white-space:nowrap;display:block}.katex-display>.katex>.katex-html{display:block;position:relative}.katex-display>.katex>.katex-html>.katex-tag{position:absolute;right:0}.katex-display.leqno>.katex>.katex-html>.katex-tag{left:0;right:auto}.katex-display.fleqn>.katex{text-align:left;padding-left:2em}body{counter-reset:katexEqnNo mmlEqnNo}:root{--ink:#13213a;--muted:#66738a;--line:#dbe2ed;--paper:#f6f8fc;--panel:#fff;--blue:#2457d6;--blue-dark:#1943ae;--blue-soft:#edf3ff;--green:#15805d;--green-soft:#eaf8f2;--amber:#a15c10;--amber-soft:#fff5e6;--danger:#b42335;--shadow:0 22px 65px #182d5417;--font-sans:"Microsoft YaHei", "PingFang SC", "Hiragino Sans GB", Arial, sans-serif;--font-serif:"Songti SC", STSong, SimSun, Georgia, serif}*{box-sizing:border-box}html{background:var(--paper);scroll-behavior:smooth;min-width:320px}body{min-height:100vh;color:var(--ink);background:radial-gradient(circle at 18% 0%, #5885ff1f, transparent 30rem), radial-gradient(circle at 88% 10%, #19805d12, transparent 25rem), var(--paper);font-family:var(--font-sans);-webkit-font-smoothing:antialiased;margin:0}button,input,textarea{font:inherit}button{color:inherit}:is(button:focus-visible,input:focus-visible,textarea:focus-visible,a:focus-visible,label:focus-visible){outline-offset:2px;outline:3px solid #2457d638}.app-shell{width:100%;min-height:100vh}.topbar{-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);z-index:30;background:#f8fafdd1;border-bottom:1px solid #d1dae7d1;justify-content:space-between;align-items:center;height:72px;padding:0 max(24px,50vw - 680px);display:flex;position:sticky;top:0}.brand{color:var(--ink);align-items:center;gap:11px;text-decoration:none;display:flex}.brand-mark{color:#fff;background:var(--blue);border:1px solid #1746bf;border-radius:11px;place-items:center;width:38px;height:38px;font:600 24px/1 Georgia,serif;display:grid;box-shadow:0 8px 20px #2457d638}.brand>span:last-child{gap:1px;display:grid}.brand strong{font-family:var(--font-serif), serif;letter-spacing:.08em;font-size:18px}.brand small{color:#778298;letter-spacing:.22em;font-size:8px;font-weight:700}.topbar-actions{align-items:center;gap:8px;display:flex}.status-button,.icon-button{border:1px solid var(--line);background:#ffffffd1;transition:all .18s}.status-button{color:#43516b;border-radius:999px;align-items:center;gap:7px;height:36px;padding:0 13px;font-size:12px;font-weight:600;display:flex}.status-button svg{color:var(--green)}.icon-button{color:#536079;cursor:pointer;border-radius:7px;place-items:center;width:36px;height:36px;display:grid}.icon-button:hover{background:#fff;border-color:#aeb8cb;transform:translateY(-1px)}.history-wrap{position:relative}.history-popover{border:1px solid var(--line);z-index:40;background:#fff;border-radius:14px;width:330px;padding:10px;position:absolute;top:44px;right:0;box-shadow:0 18px 55px #17233c2e}.popover-heading{justify-content:space-between;align-items:center;padding:5px 5px 10px;font-size:13px;font-weight:700;display:flex}.popover-heading button{color:var(--muted);cursor:pointer;background:0 0;border:0;align-items:center;gap:4px;font-size:11px;display:flex}.empty-history{color:#9aa3b2;align-content:center;place-items:center;gap:8px;min-height:110px;font-size:12px;display:grid}.history-item{text-align:left;cursor:pointer;background:0 0;border:0;border-top:1px solid #edf0f5;gap:4px;width:100%;padding:10px;display:grid}.history-item:hover{background:#f6f8fc}.history-item span{white-space:nowrap;text-overflow:ellipsis;font-family:ui-monospace,Consolas,monospace;font-size:12px;overflow:hidden}.history-item small{color:#98a1b1;font-size:10px}.hero-copy{justify-content:space-between;align-items:flex-end;gap:40px;max-width:1360px;margin:0 auto;padding:48px 24px 32px;display:flex}.eyebrow{color:var(--blue);letter-spacing:.14em;text-transform:uppercase;align-items:center;gap:6px;margin:0 0 9px;font-size:11px;font-weight:700;display:flex}.hero-copy h1{font-family:var(--font-serif), Georgia, serif;letter-spacing:-.04em;margin:0;font-size:clamp(34px,3.5vw,52px);font-weight:700;line-height:1.12}.hero-copy h1 em{color:var(--blue);white-space:nowrap;font-style:normal;position:relative}.hero-copy h1 em:after{content:"";background:var(--blue);height:3px;position:absolute;bottom:-6px;left:0;right:0;transform:rotate(-.6deg)}.hero-side{gap:16px;max-width:500px;display:grid}.hero-side>p{color:var(--muted);margin:0;font-size:14px;line-height:1.75}.hero-pills{flex-wrap:wrap;gap:7px;display:flex}.hero-pills span{color:#52617a;background:#ffffffb8;border:1px solid #dce3ee;border-radius:999px;align-items:center;gap:5px;height:29px;padding:0 10px;font-size:10px;font-weight:600;display:flex}.hero-pills svg{color:var(--blue)}.workspace{grid-template-columns:minmax(0,1.06fr) minmax(0,.94fr);gap:20px;max-width:1360px;margin:0 auto;padding:0 24px;display:grid}.panel{min-width:0;box-shadow:var(--shadow);background:#fffffff0;border:1px solid #d1dbe8f2;border-radius:16px;overflow:hidden}.panel-heading{background:linear-gradient(#fff,#fcfdff);border-bottom:1px solid #e8ecf2;justify-content:space-between;align-items:center;height:64px;padding:0 20px;display:flex}.panel-heading>div:first-child{align-items:center;gap:10px;display:flex}.panel-heading h2{letter-spacing:.02em;margin:0;font-size:15px}.heading-copy{gap:2px;display:grid}.heading-copy small{color:#929cac;font-size:9px;font-weight:500}.step{width:30px;height:30px;color:var(--blue);background:var(--blue-soft);border-radius:8px;place-items:center;font:700 10px/1 ui-monospace,Consolas,monospace;display:grid}.file-name{max-width:210px;color:var(--muted);text-overflow:ellipsis;white-space:nowrap;align-items:center;gap:6px;font-size:11px;display:flex;overflow:hidden}.dropzone{text-align:center;background:radial-gradient(circle,#fff 0,#f9fbff 68%,#f5f8fd 100%);border:1.5px dashed #afbdd2;border-radius:12px;flex-direction:column;justify-content:center;align-items:center;min-height:400px;margin:18px;transition:all .2s;display:flex}.dropzone:hover,.dropzone.is-dragging{border-color:var(--blue);background:#f4f8ff;box-shadow:inset 0 0 0 3px #2457d60f}.dropzone.is-dragging{transform:scale(.994)}.drop-illustration{width:78px;height:70px;color:var(--blue);background:#fff;border:1px solid #cbd7ea;border-radius:16px;place-items:center;margin-bottom:20px;display:grid;position:relative;box-shadow:0 12px 30px #2457d61f}.drop-illustration span{color:#fff;background:var(--green);letter-spacing:.09em;border:3px solid #fff;border-radius:7px;padding:4px 6px;font:700 7px/1 ui-monospace,monospace;position:absolute;bottom:-8px;right:-14px}.dropzone h3{font-family:var(--font-serif), serif;margin:0 0 8px;font-size:19px}.dropzone>p{color:#7a8496;margin:0;font-size:12px}.drop-actions{gap:9px;margin-top:25px;display:flex}.button{cursor:pointer;border:1px solid #0000;border-radius:9px;justify-content:center;align-items:center;gap:8px;height:42px;padding:0 17px;font-size:13px;font-weight:600;transition:all .18s;display:inline-flex}.button:hover:not(:disabled){transform:translateY(-1px)}.button:disabled{opacity:.42;cursor:not-allowed}.button.is-disabled{opacity:.58;pointer-events:none}.button.primary{background:var(--blue);color:#fff;border-color:var(--blue);box-shadow:0 8px 18px #2457d638}.button.primary:hover:not(:disabled){background:var(--blue-dark)}.button.secondary{color:#42506a;background:#fff;border-color:#cdd4df}.button.secondary:hover:not(:disabled){background:#f8f9fc;border-color:#96a4ba}.sample-link{color:#63718a;cursor:pointer;background:0 0;border:0;border-bottom:1px solid #a8b4c7;margin-top:22px;padding:1px 0;font-size:11px}.import-error{max-width:380px;color:var(--danger);background:#fff2f4;border:1px solid #ffd2d9;border-radius:7px;margin-top:14px;padding:8px 11px;font-size:10px;line-height:1.5}.image-workbench{background:#eef1f6;border:1px solid #d7dfe9;border-radius:12px;margin:18px 18px 0;overflow:hidden}.crop-stage{touch-action:none;-webkit-user-select:none;user-select:none;cursor:crosshair;background:#e7e9ed;justify-content:center;align-items:center;min-height:340px;max-height:420px;display:flex;position:relative;overflow:hidden}.crop-stage img{object-fit:contain;pointer-events:none;width:100%;height:100%;max-height:420px}.crop-dim{pointer-events:none;background:#0c132080;position:absolute}.crop-dim.top{top:0;left:0;right:0}.crop-dim.bottom{bottom:0;left:0;right:0}.crop-dim.left{left:0}.crop-dim.right{right:0}.crop-box{box-shadow:0 0 0 1px var(--blue), 0 0 0 9999px transparent;pointer-events:none;border:1.5px solid #fff;position:absolute}.crop-box>span{background:var(--blue);color:#fff;white-space:nowrap;border-radius:4px;align-items:center;gap:5px;padding:5px 7px;font-size:10px;display:flex;position:absolute;top:-29px;left:0}.corner{border-color:var(--blue);border-style:solid;width:11px;height:11px;position:absolute}.corner.tl{border-width:3px 0 0 3px;top:-3px;left:-3px}.corner.tr{border-width:3px 3px 0 0;top:-3px;right:-3px}.corner.bl{border-width:0 0 3px 3px;bottom:-3px;left:-3px}.corner.br{border-width:0 3px 3px 0;bottom:-3px;right:-3px}.image-toolbar{background:#fff;border-top:1px solid #d7dce5;justify-content:space-between;align-items:center;gap:12px;min-height:47px;padding:6px 10px;display:flex}.image-toolbar>div{gap:2px;display:flex}.tool-button{color:#526079;cursor:pointer;background:0 0;border:0;border-radius:6px;align-items:center;gap:5px;height:32px;padding:0 8px;font-size:11px;display:flex}.tool-button:hover{color:var(--blue);background:#f0f3f8}.check-control{color:#59657a;cursor:pointer;align-items:center;gap:6px;font-size:11px;display:flex}.check-control input{opacity:0;position:absolute}.check-control>span{color:#0000;border:1px solid #b8c0cf;border-radius:3px;place-items:center;width:17px;height:17px;display:grid}.check-control input:checked+span{background:var(--blue);border-color:var(--blue);color:#fff}.recognize-row{justify-content:space-between;align-items:flex-end;gap:15px;min-height:82px;padding:14px 18px 17px;display:flex}.local-model-info{grid-template-columns:auto 1fr;align-items:center;gap:3px 8px;min-width:200px;display:grid}.local-model-info>span:first-child{color:#8a93a3;letter-spacing:.12em;text-transform:uppercase;grid-column:1/-1;font-size:9px}.local-model-info strong{color:#33415b;align-items:center;gap:5px;font-size:11px;display:flex}.local-model-info strong svg{color:var(--blue)}.local-model-info small{color:#7b8698;font-size:9px}.model-progress{background:#e5e9f0;border-radius:999px;grid-column:1/-1;width:100%;height:3px;margin-top:3px;overflow:hidden}.model-progress i{background:var(--blue);height:100%;transition:width .2s;display:block}.button.recognize{background:var(--ink);border-color:var(--ink);color:#fff;min-width:145px;height:46px;box-shadow:0 9px 20px #13213a33}.button.recognize:hover:not(:disabled){background:var(--blue);border-color:var(--blue)}.spin{animation:.9s linear infinite spin}@keyframes spin{to{transform:rotate(360deg)}}.result-meta{align-items:center;gap:8px;display:flex}.local-badge,.elapsed-badge{align-items:center;gap:5px;font-size:10px;font-weight:600;display:flex}.local-badge{color:var(--green);background:var(--green-soft);border-radius:4px;padding:4px 6px}.elapsed-badge{color:#69758a}.formula-preview{background:linear-gradient(145deg,#fff,#fbfcff);border:1px solid #d9e1eb;border-radius:12px;place-items:center;min-height:205px;margin:18px 18px 0;display:grid;position:relative;overflow:auto}.formula-preview:before{content:"PREVIEW";color:#b1b7c2;letter-spacing:.16em;font:700 8px/1 ui-monospace,monospace;position:absolute;top:8px;left:10px}.preview-placeholder{text-align:center;color:#8e98a8;place-items:center;display:grid}.ghost-formula{color:#d1d6df;margin-bottom:8px;font:italic 29px/1.3 Georgia,serif}.preview-placeholder p{color:#747f91;margin:0 0 5px;font-size:12px}.preview-placeholder small{color:#a1a9b7;font-size:10px}.katex-target{max-width:100%;padding:34px 24px 22px;font-size:clamp(1rem,2vw,1.3rem)}.editor-block{border:1px solid #d9e1eb;border-radius:10px;margin:14px 18px 0;overflow:hidden}.editor-label{background:#f4f6f9;border-bottom:1px solid #dfe3eb;justify-content:space-between;align-items:center;height:34px;padding:0 10px;display:flex}.editor-label label{letter-spacing:.08em;font-size:10px;font-weight:700}.editor-label span{color:#98a0ae;font-size:9px}.editor-block textarea{resize:vertical;color:#20304a;background:#fff;border:0;outline:0;width:100%;min-height:120px;padding:14px;font:12px/1.7 ui-monospace,Cascadia Code,Consolas,monospace}.editor-block textarea:focus{box-shadow:inset 0 0 0 1px var(--blue)}.editor-footer{color:#949dab;border-top:1px solid #e5e8ef;justify-content:space-between;align-items:center;height:30px;padding:0 10px;font-size:9px;display:flex}.editor-footer button{color:#7b8595;cursor:pointer;background:0 0;border:0;align-items:center;gap:3px;font-size:10px;display:flex}.editor-footer button:disabled{opacity:.4}.ambiguity-note,.error-message{margin:10px 18px 0;padding:9px 11px;font-size:10px;line-height:1.5}.ambiguity-note{color:#765022;background:var(--amber-soft);border-left:3px solid #d8933c;gap:8px;display:flex}.error-message{color:var(--danger);background:#fff1f3;border-left:3px solid #d64054}.export-actions{grid-template-columns:1fr auto auto auto;gap:7px;margin:16px 18px 0;display:grid}.button.office{background:var(--blue);color:#fff;border-color:var(--blue);height:44px;box-shadow:0 8px 18px #2457d62e}.button.office:hover:not(:disabled){background:var(--blue-dark)}.button.office>span{border-left:1px solid #ffffff4d;margin-left:auto;padding-left:11px;font-size:9px;font-weight:500}.export-actions .secondary{height:44px}.mathml{padding:0 11px;font-size:10px}.office-tip{color:#7c8798;margin:10px 18px 18px;font-size:9px;line-height:1.6}.office-tip>span{color:var(--blue);margin-right:6px;font-weight:700}kbd{background:#f1f3f6;border:1px solid #d4d9e2;border-bottom-width:2px;border-radius:3px;padding:1px 4px;font:9px/1.3 ui-monospace,monospace}.site-footer{color:#7e8898;justify-content:space-between;gap:16px;max-width:1360px;margin:0 auto;padding:22px 24px 26px;font-size:10px;display:flex}.site-footer nav{flex-wrap:wrap;gap:7px;display:flex}.site-footer a{color:#53647f;text-underline-offset:3px}.site-footer a:hover{color:var(--blue)}.legal-shell{min-height:100vh;padding:0 20px 60px}.legal-header{justify-content:space-between;align-items:center;max-width:900px;height:72px;margin:0 auto;display:flex}.legal-brand{color:var(--ink);align-items:center;gap:10px;text-decoration:none;display:flex}.legal-brand>span:last-child{gap:1px;display:grid}.legal-brand strong{font-family:var(--font-serif), serif;letter-spacing:.08em;font-size:17px}.legal-brand small{color:#778298;letter-spacing:.2em;font-size:7px;font-weight:700}.legal-back{color:#56647a;text-underline-offset:4px;font-size:12px}.legal-card{border:1px solid var(--line);max-width:900px;box-shadow:var(--shadow);background:#fffffff5;border-radius:18px;margin:28px auto 0;padding:clamp(28px,6vw,64px)}.legal-kicker{color:var(--blue);letter-spacing:.12em;margin:0 0 10px;font-size:10px;font-weight:700}.legal-card h1{font-family:var(--font-serif), serif;letter-spacing:-.03em;margin:0;font-size:clamp(30px,5vw,44px)}.legal-lead{color:var(--muted);margin:18px 0 0;font-size:14px;line-height:1.9}.legal-card section{border-top:1px solid #e7ebf1;margin-top:38px;padding-top:30px}.legal-card h2{margin:0 0 14px;font-size:18px}.legal-card p,.legal-card li{color:#58667c;font-size:13px;line-height:1.9}.legal-card ul{margin:0;padding-left:1.25rem}.legal-card li+li{margin-top:8px}.legal-card strong{color:#2b3d59}.legal-card a{color:var(--blue);text-underline-offset:3px}.legal-card code{color:#33415b;background:#f0f3f8;border-radius:4px;padding:2px 5px}.legal-actions{flex-wrap:wrap;gap:8px;margin:18px 0;display:flex}.legal-actions a{background:#f8faff;border:1px solid #cbd6e8;border-radius:7px;padding:8px 11px;font-size:11px;font-weight:600;text-decoration:none}.legal-actions a:hover{border-color:var(--blue);background:var(--blue-soft)}.visually-hidden{clip:rect(0,0,0,0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;overflow:hidden;position:absolute!important}.analytics-shell{min-height:100vh}.analytics-header{justify-content:space-between;align-items:center;max-width:1240px;height:72px;margin:0 auto;padding:0 24px;display:flex}.analytics-header-actions{align-items:center;gap:10px;display:flex}.analytics-header-actions>a,.analytics-header-actions>span{color:#536079;background:#ffffffb8;border:1px solid #d6deea;border-radius:999px;align-items:center;gap:6px;height:34px;padding:0 11px;font-size:11px;text-decoration:none;display:inline-flex}.analytics-header-actions .privacy-chip{color:var(--green);background:var(--green-soft);border-color:#cce8dd}.analytics-main{max-width:1240px;margin:0 auto;padding:34px 24px 48px}.analytics-title-row{justify-content:space-between;align-items:flex-end;gap:28px;display:flex}.analytics-title-row h1{font-family:var(--font-serif), serif;letter-spacing:-.04em;margin:0;font-size:clamp(32px,4vw,46px)}.analytics-title-row>div:first-child>p:last-child{color:var(--muted);margin:10px 0 0;font-size:13px}.analytics-controls{gap:8px;display:flex}.analytics-controls select,.analytics-controls button{color:#43516a;background:#fff;border:1px solid #cfd8e6;border-radius:8px;height:38px;font-size:12px}.analytics-controls select{padding:0 32px 0 11px}.analytics-controls button{cursor:pointer;align-items:center;gap:6px;padding:0 12px;display:flex}.analytics-controls button:disabled{opacity:.55}.analytics-error{color:var(--danger);background:#fff1f3;border:1px solid #ffd2da;border-radius:8px;margin-top:18px;padding:11px 13px;font-size:12px}.metric-grid{grid-template-columns:repeat(4,1fr);gap:12px;margin-top:26px;display:grid}.metric-grid article{border:1px solid var(--line);background:#fffffff0;border-radius:14px;align-content:space-between;min-height:148px;padding:19px;display:grid;box-shadow:0 12px 35px #182d540d}.metric-grid article>span{color:#60708a;align-items:center;gap:7px;font-size:11px;font-weight:600;display:flex}.metric-grid article>span svg{color:var(--blue)}.metric-grid article>strong{color:var(--ink);font:700 clamp(28px, 3vw, 40px)/1 var(--font-serif), serif;margin-top:14px}.metric-grid article>small{color:#919aaa;margin-top:7px;font-size:9px}.analytics-grid{grid-template-columns:1.35fr .65fr;gap:12px;margin-top:12px;display:grid}.analytics-card{border:1px solid var(--line);background:#fffffff0;border-radius:14px;min-width:0;padding:20px;box-shadow:0 12px 35px #182d540d}.analytics-card-heading{justify-content:space-between;align-items:flex-start;gap:16px;min-height:44px;display:flex}.analytics-card-heading h2{margin:0;font-size:14px}.analytics-card-heading p{color:#929bab;margin:5px 0 0;font-size:9px}.analytics-card-heading>span{color:#708098;background:#f1f4f8;border-radius:5px;padding:4px 7px;font-size:8px}.analytics-card-heading>svg{color:var(--blue)}.trend-chart{background-image:linear-gradient(#edf1f6 1px,#0000 1px);background-size:100% 25%;border-bottom:1px solid #dfe5ee;align-items:stretch;gap:clamp(3px,.65vw,8px);height:270px;margin-top:13px;padding-top:24px;display:flex}.trend-column{text-align:center;flex:1;grid-template-rows:18px 1fr 25px;align-items:end;min-width:0;display:grid}.trend-value{color:#8e98a8;font-size:8px}.trend-bars{justify-content:center;align-items:flex-end;gap:1px;height:100%;display:flex}.trend-bars i,.trend-bars b{border-radius:3px 3px 0 0;width:min(9px,44%);display:block}.trend-bars i{background:var(--blue)}.trend-bars b{background:#8fc9b5}.trend-column small{color:#98a1af;white-space:nowrap;padding-top:7px;font-size:7px}.chart-legend{color:#778398;justify-content:flex-end;gap:15px;margin-top:12px;font-size:9px;display:flex}.chart-legend span{align-items:center;gap:5px;display:flex}.chart-legend i,.chart-legend b{border-radius:2px;width:8px;height:8px}.chart-legend i{background:var(--blue)}.chart-legend b{background:#8fc9b5}.location-list{margin-top:8px;display:grid}.location-row{border-top:1px solid #edf0f5;grid-template-columns:26px 1fr auto;align-items:center;gap:8px;min-height:51px;display:grid}.location-rank{color:#a0a8b5;font:9px/1 ui-monospace,monospace}.location-row>div{gap:6px;min-width:0;display:grid}.location-row>div>strong{color:#45536a;white-space:nowrap;text-overflow:ellipsis;font-size:10px;overflow:hidden}.location-row>div>i,.device-list i{background:#eef1f5;border-radius:999px;height:3px;display:block;overflow:hidden}.location-row>div>i b,.device-list i b{background:var(--blue);border-radius:inherit;height:100%;display:block}.location-row>span:last-child{text-align:right;display:grid}.location-row>span:last-child strong{font-size:11px}.location-row>span:last-child small{color:#9ba3af;font-size:7px}.compact-card{min-height:220px}.simple-table{margin-top:8px}.simple-table>div{border-top:1px solid #edf0f5;justify-content:space-between;align-items:center;gap:12px;min-height:38px;font-size:10px;display:flex}.simple-table code{color:#47566e;white-space:nowrap;text-overflow:ellipsis;overflow:hidden}.simple-table span{color:#7b8698;white-space:nowrap}.device-list{gap:15px;margin-top:12px;display:grid}.device-list>div{color:#59677c;grid-template-columns:48px 1fr 38px;align-items:center;gap:9px;font-size:10px;display:grid}.device-list>div>strong{text-align:right;font-size:10px}.analytics-empty{color:#99a2af;text-align:center;width:100%;margin:28px 0;font-size:10px}.analytics-footer{color:#8993a3;justify-content:space-between;gap:15px;padding:15px 2px 0;font-size:9px;display:flex}.toast{color:#fff;z-index:100;background:#142239;border:1px solid #2e3f5b;border-radius:6px;align-items:center;gap:7px;padding:10px 14px;font-size:12px;animation:.2s ease-out toast-in;display:flex;position:fixed;bottom:24px;left:50%;transform:translate(-50%);box-shadow:0 14px 45px #09111e3d}@keyframes toast-in{0%{opacity:0;transform:translate(-50%,8px)}}@media (max-width:920px){.hero-copy{flex-direction:column;align-items:flex-start;gap:14px;padding-top:30px}.hero-side{max-width:650px}.workspace{grid-template-columns:1fr}.dropzone{min-height:340px}.metric-grid{grid-template-columns:repeat(2,1fr)}.analytics-grid{grid-template-columns:1fr}}@media (max-width:600px){.topbar{height:60px;padding:0 14px}.brand-mark{width:34px;height:34px}.brand strong{font-size:16px}.status-button{justify-content:center;width:36px;padding:0;font-size:0}.hero-copy{padding:26px 16px 23px}.hero-copy h1{font-size:32px}.workspace{padding:0 10px}.panel-heading{padding:0 14px}.dropzone,.image-workbench{margin-left:12px;margin-right:12px}.dropzone{min-height:320px}.drop-actions{flex-direction:column;width:180px}.drop-actions .button{width:100%}.recognize-row{flex-direction:column;align-items:stretch}.button.recognize{width:100%}.formula-preview,.editor-block{margin-left:12px;margin-right:12px}.export-actions{grid-template-columns:1fr 1fr;margin-left:12px;margin-right:12px}.button.office{grid-column:1/-1}.mathml{display:none}.office-tip{margin-left:12px;margin-right:12px}.site-footer{flex-direction:column;gap:6px;padding:18px 16px}.legal-shell{padding:0 10px 30px}.legal-card{margin-top:10px;padding:26px 20px}.history-popover{width:auto;position:fixed;top:66px;left:12px;right:12px}.analytics-header{height:62px;padding:0 14px}.analytics-header-actions .privacy-chip{display:none}.analytics-main{padding:24px 12px 32px}.analytics-title-row{flex-direction:column;align-items:stretch}.analytics-controls select{flex:1}.metric-grid{grid-template-columns:1fr 1fr;gap:8px}.metric-grid article{min-height:126px;padding:14px}.metric-grid article>strong{font-size:28px}.analytics-card{padding:15px}.trend-chart{gap:2px;height:225px;overflow:hidden}.trend-column small{transform-origin:top;transform:rotate(-55deg)}.analytics-footer{flex-direction:column}}@media (prefers-reduced-motion:reduce){*,:before,:after{scroll-behavior:auto!important;transition-duration:.01ms!important;animation-duration:.01ms!important}}