@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:"0.17.0"}.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;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,Microsoft YaHei,sans-serif;--bg: #edeffa;--surface: #ffffff;--surface-muted: #f3f5f9;--surface-hover: rgba(135, 150, 185, .08);--line: #e2e5f1;--line-strong: #cbd0e1;--text: #334155;--text-muted: #64748b;--text-soft: #94a3b8;--accent: #38bdf8;--accent-strong: #0284c7;--accent-soft: #e0f2fe;--danger: #ef4444;--danger-soft: #fee2e2;--blue: #60a5fa;--green: #34d399;--gold: #fbbf24;--purple: #a78bfa;--cyan: #22d3ee;--pink: #f472b6;--indigo: #818cf8;--shadow: 0 10px 40px -10px rgba(71, 85, 105, .08), 0 4px 6px -4px rgba(71, 85, 105, .04);--shadow-sm: 0 2px 8px -2px rgba(71, 85, 105, .06);--radius: 12px}*{box-sizing:border-box}html,body,#root{min-height:100%;margin:0}body{background:var(--bg);color:var(--text)}button,input,textarea{font:inherit}button{color:inherit}button:not(:disabled){cursor:pointer}button:disabled,input:disabled{cursor:not-allowed;opacity:.48}textarea{resize:none}a{color:inherit}svg{flex:0 0 auto}::selection{background:var(--accent-soft)}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background-color:#dde1eb;border-radius:4px}::-webkit-scrollbar-thumb:hover{background-color:#c8cdd7cc}.workspace-shell{display:grid;grid-template-rows:58px minmax(0,1fr) 26px;height:100vh;min-height:720px}.topbar{position:relative;z-index:40;display:flex;align-items:center;justify-content:space-between;gap:16px;border-bottom:1px solid var(--line);background:transparent;padding:0 18px;-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px)}.brand,.topbar-actions,.search-controls,.message-actions,.dialog-actions,.artifact-feedback,.canvas-tools{display:flex;align-items:center}.brand{min-width:0;gap:10px;font-weight:650}.brand-mark,.avatar{display:grid;place-items:center;width:34px;height:34px;border-radius:var(--radius);background:var(--accent-soft);color:var(--accent-strong)}.avatar{box-sizing:border-box;width:30px;height:30px;padding:0;border:0;background:var(--surface-muted);color:var(--text-muted);font-size:13px;font-weight:700;line-height:0;overflow:hidden;box-shadow:inset 0 0 0 1px var(--line);transition:background-color .16s ease,box-shadow .16s ease,color .16s ease}.avatar:hover,.avatar:focus-visible{background:var(--surface-hover, rgba(0, 0, 0, .05));box-shadow:inset 0 0 0 1px var(--line-strong);outline:none}.avatar.has-image{background:transparent;color:transparent;box-shadow:inset 0 0 0 1px var(--line)}.avatar.has-image:hover,.avatar.has-image:focus-visible{box-shadow:inset 0 0 0 1px var(--accent)}.avatar img{width:100%;height:100%;min-width:100%;min-height:100%;object-fit:cover;display:block}.topbar-actions{gap:8px}.account-menu-anchor{position:relative}.account-menu{position:absolute;top:40px;right:0;z-index:80;display:grid;gap:4px;width:238px;border:1px solid var(--line);border-radius:var(--radius);background:var(--surface);box-shadow:var(--shadow);padding:8px}.account-menu button,.announcement-form button,.auth-page-panel button{display:inline-flex;align-items:center;gap:8px;min-height:34px;border:1px solid var(--line);border-radius:var(--radius);background:var(--surface);padding:0 10px}.account-menu button{justify-content:flex-start;border-color:transparent;color:var(--text);transition:transform .16s ease,background-color .16s ease,color .16s ease}.account-menu button:hover,.account-menu button:focus-visible{border-color:transparent;background:var(--surface-muted);transform:translate(2px);box-shadow:none;outline:none}.account-card{display:grid;grid-template-columns:auto minmax(0,1fr);gap:8px;border-bottom:1px solid var(--line);padding:6px 6px 10px}.account-card div{display:grid;gap:2px;min-width:0}.account-card span{color:var(--text-muted);font-size:12px}.account-avatar-image,.account-avatar-fallback{display:grid;place-items:center;width:28px;height:28px;border-radius:var(--radius);background:var(--accent-soft);color:var(--accent-strong);font-size:13px;font-weight:700}.account-avatar-image{object-fit:cover}.primary-pill,.add-source-button,.chat-input button,.dialog-actions button:not(.primary-pill),.upload-actions button,.artifact-feedback button,.mindmap-title button,.suggestions button{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:36px;border:1px solid var(--line);border-radius:var(--radius);background:var(--surface);padding:0 12px;white-space:nowrap;transition:transform .16s ease,border-color .16s ease,background-color .16s ease,box-shadow .16s ease}.primary-pill,.add-source-button,.chat-input button:not(:disabled){border-color:var(--accent);background:var(--accent);color:#fff}.icon-button,.row-icon,.close-button,.canvas-tools button,.message-actions button,.breadcrumb button{display:inline-grid;place-items:center;width:34px;height:34px;border:none;border-radius:var(--radius);background:transparent;transition:transform .16s ease,background-color .16s ease}.icon-button:hover:not(:disabled),.row-icon:hover:not(:disabled),.close-button:hover:not(:disabled),.canvas-tools button:hover:not(:disabled),.message-actions button:hover:not(:disabled),.breadcrumb button:hover:not(:disabled){background-color:var(--surface-hover, rgba(0, 0, 0, .05))}.message-actions button:first-child,.breadcrumb button:first-child{display:inline-flex;width:auto;gap:6px;padding:0 10px}.row-icon.danger:not(:disabled){color:var(--danger)}.workspace-grid{display:grid;gap:0;min-height:0;padding:12px;transition:grid-template-columns .26s ease}.is-resizing-panels .workspace-grid{transition:none}.panel-resizer{position:relative;min-width:10px;border:0;border-radius:0;background:transparent;cursor:col-resize!important;touch-action:none}.panel-resizer:hover,.panel-resizer:active{transform:none!important}.panel-resizer:before{display:none}.panel{min-width:0;min-height:0;overflow:hidden;border:1px solid var(--line);border-radius:var(--radius);background:var(--surface);transition:border-color .18s ease,box-shadow .18s ease,transform .18s ease}.panel:hover{border-color:var(--line-strong);box-shadow:var(--shadow-sm)}.source-panel,.studio-panel,.chat-panel{display:flex;flex-direction:column}.panel-header{display:flex;align-items:center;justify-content:space-between;min-height:48px;border-bottom:1px solid var(--line);padding:0 14px}.panel-header h2,.settings-dialog h2,.upload-dialog h2,.mindmap-title h2{margin:0;font-size:16px;line-height:1.3}.chat-header-actions{display:inline-flex;align-items:center;gap:8px}.chat-menu{position:relative}.chat-menu-popover{position:absolute;top:calc(100% + 8px);right:0;z-index:20;display:grid;width:228px;gap:2px;border:1px solid var(--line);border-radius:8px;background:var(--surface);box-shadow:0 14px 34px #0f172a2e;padding:14px;animation:popover-in .14s ease both}.chat-menu-popover>button{display:grid;min-height:34px;border:0;border-radius:6px;background:transparent;padding:7px 2px;color:var(--text);font-size:14px;text-align:left}.chat-menu-popover>button:not(:disabled):hover{background:var(--surface-muted)}.chat-menu-popover>button:disabled{color:var(--text);cursor:not-allowed}.chat-menu-popover p{margin:4px 0 8px;color:var(--text-muted);font-size:12px;font-style:italic;line-height:1.5}button:not(:disabled):hover{transform:translateY(-1px)}button:not(:disabled):active{transform:translateY(0)}.is-resizing-panels{cursor:col-resize;-webkit-user-select:none;user-select:none}.add-source-button{margin:14px}.source-list,.artifact-list,.chat-scroll{min-height:0;overflow:auto}.source-list{padding:0 10px 12px}.source-select-all,.source-row{display:grid;grid-template-columns:auto minmax(0,1fr) auto auto;align-items:center;gap:8px}.source-select-all{grid-template-columns:minmax(0,1fr) auto;min-height:36px;padding:0 4px;color:var(--text-muted);font-size:13px}.source-row{position:relative;overflow:hidden;min-height:58px;border-radius:var(--radius);padding:7px 4px 7px 8px;transition:background-color .16s ease,transform .16s ease}.source-row.is-editing{overflow:visible;z-index:2}.source-row>*,.artifact-row>*{position:relative;z-index:1}.source-row:hover{background:var(--surface-muted);transform:translate(2px)}.source-row.is-active-task,.artifact-row.is-active-task{border-color:color-mix(in srgb,var(--accent) 32%,var(--line));background:linear-gradient(90deg,#38bdf814,#a78bfa1a),var(--surface);box-shadow:inset 0 0 0 1px #38bdf81a}.source-row.is-active-task:after,.artifact-row.is-active-task:after{content:"";position:absolute;inset:0;z-index:0;background:linear-gradient(100deg,transparent 0%,rgb(56 189 248 / 0%) 26%,rgb(56 189 248 / 18%) 38%,rgb(167 139 250 / 24%) 50%,rgb(56 189 248 / 18%) 62%,rgb(56 189 248 / 0%) 74%,transparent 100%);animation:task-marquee 1.55s linear infinite;pointer-events:none}.file-type-icon{color:var(--accent)}.source-title,.artifact-row{min-width:0;border:0;background:transparent;padding:0;text-align:left}.source-title{display:flex;flex-direction:column;align-items:flex-start;gap:2px;overflow:hidden}.source-title.is-editing{overflow:visible}.source-title:disabled{cursor:not-allowed;opacity:.72}.source-title span,.artifact-row strong{display:block;overflow:hidden;color:var(--text);text-overflow:ellipsis;white-space:nowrap}.source-title small,.artifact-row small,.error-text{display:block;overflow:hidden;color:var(--text-muted);font-size:12px;line-height:1.35;text-overflow:ellipsis;white-space:nowrap}.error-text{color:var(--danger)}.source-reader-backdrop{position:fixed;inset:0;z-index:22;display:grid;justify-items:start;background:#1e1f1c2e;padding:0;animation:fade-in .16s ease both}.source-reader{display:grid;grid-template-rows:60px minmax(0,1fr);width:min(640px,100vw);height:100vh;border-right:1px solid var(--line);background:var(--surface);box-shadow:18px 0 42px #0f172a29;animation:drawer-in .22s ease both}.source-reader-header{display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line);padding:0 20px}.source-reader-header h2,.source-guide-title h2{margin:0;font-size:20px;line-height:1.25}.source-reader-body{min-height:0;overflow:auto;padding:22px 20px 44px}.source-reader-body h1{margin:0 0 24px;overflow-wrap:anywhere;font-size:26px;line-height:1.25}.source-guide-card{display:grid;gap:14px;margin-bottom:34px;border-radius:16px;background:#eef1fb;padding:18px 20px 20px}.source-guide-title{display:flex;align-items:center;gap:10px;color:var(--text)}.source-guide-title svg:first-child{color:var(--accent-strong)}.source-guide-card p{margin:0;color:var(--text);font-size:16px;line-height:1.8}.source-tags{display:flex;flex-wrap:wrap;gap:10px}.source-tags span{max-width:150px;overflow:hidden;border:1px solid #d8deef;border-radius:999px;background:#ffffff85;padding:9px 15px;color:var(--text);font-size:14px;font-weight:650;text-overflow:ellipsis;white-space:nowrap}.source-document-text{display:grid;gap:22px;color:var(--text)}.source-document-text p{margin:0 0 16px;overflow-wrap:anywhere;white-space:pre-wrap;font-size:18px;font-weight:650;line-height:1.72}.source-document-block p:last-child{margin-bottom:0}.source-document-image{margin:0;display:grid;gap:8px}.source-document-image img{max-width:100%;border:1px solid var(--line);border-radius:var(--radius);background:#fff}.source-document-image figcaption{color:var(--text-muted);font-size:12px}.source-loading{color:var(--text-muted);font-weight:500}.spin-icon{margin-left:auto;animation:spin .9s linear infinite}.type-caret{display:inline-block;width:7px;height:1.15em;margin-left:2px;border-radius:999px;background:var(--accent);vertical-align:-.18em;animation:caret-blink .85s steps(2,end) infinite}@keyframes spin{to{transform:rotate(360deg)}}@keyframes fade-in{0%{opacity:0}}@keyframes drawer-in{0%{opacity:0;transform:translate(-18px)}}@keyframes soft-rise{0%{opacity:0;transform:translateY(6px)}}@keyframes message-in{0%{opacity:0;transform:translateY(8px) scale(.99)}}@keyframes popover-in{0%{opacity:0;transform:translateY(-4px) scale(.98)}}@keyframes assistant-thinking{0%,to{box-shadow:0 0 #5b6fff00}50%{box-shadow:0 0 0 4px #5b6fff14}}@keyframes task-marquee{0%{transform:translate(-120%)}to{transform:translate(120%)}}@keyframes caret-blink{50%{opacity:0}}.empty-state{display:grid;justify-items:center;gap:8px;margin:auto;max-width:320px;padding:26px 18px;color:var(--text-muted);text-align:center;animation:soft-rise .24s ease both}.empty-state strong{color:var(--text)}.empty-state p{margin:0;font-size:13px;line-height:1.55}.empty-icon{display:grid;place-items:center;width:54px;height:54px;border-radius:var(--radius);background:var(--accent-soft);color:var(--accent-strong)}.chat-scroll{display:flex;flex-direction:column;flex:1;padding:18px}.overview{display:grid;justify-items:center;gap:13px;align-content:center;max-width:620px;min-height:100%;margin:0 auto;text-align:center}.overview h1{max-width:100%;margin:0;overflow-wrap:anywhere;font-size:26px;line-height:1.25}.overview p{margin:0;color:var(--text-muted)}.overview-copy{max-width:520px;color:var(--text-muted);line-height:1.7}.suggestions{display:grid;width:min(520px,100%);gap:8px}.suggestions button{min-height:42px;border:1px solid var(--line);border-radius:var(--radius);background:var(--surface);padding:0 14px;text-align:left}.suggestions button:hover,.artifact-row:hover,.tool-card:hover:not(:disabled){border-color:var(--line-strong);background:var(--surface-muted);transform:translateY(-1px);box-shadow:0 8px 20px #0f172a12}.message-list{display:grid;gap:16px;width:100%;margin:0}.user-message,.assistant-message{border-radius:var(--radius);padding:14px 16px;line-height:1.65;animation:message-in .22s ease both}.user-message{justify-self:end;max-width:78%;background:var(--accent);color:#fff}.user-message .message-image-thumb{display:block;width:min(220px,100%);margin:0 0 10px auto;padding:0;overflow:hidden;border:1px solid rgb(255 255 255 / 42%);border-radius:var(--radius);background:#ffffff1f}.user-message .message-image-thumb img{display:block;width:100%;max-height:160px;object-fit:cover}.assistant-message{justify-self:start;width:min(100%,920px);border:1px solid var(--line);background:var(--surface-muted);transition:border-color .18s ease,background-color .18s ease,box-shadow .18s ease}.assistant-message.failed{border-color:var(--danger);background:var(--danger-soft)}.assistant-message.sending{animation:message-in .22s ease both,assistant-thinking 1.2s ease-in-out infinite}.assistant-message p:first-child{margin-top:0}.assistant-message p:last-child{margin-bottom:0}.message-actions{gap:6px;margin-top:12px;animation:soft-rise .18s ease both}.citations{display:grid;gap:6px;margin-top:14px;animation:soft-rise .18s ease both}.citations details{border:1px solid var(--line);border-radius:var(--radius);background:var(--surface);padding:8px 10px}.citations summary{color:var(--accent-strong);font-size:13px}.citations p{margin:8px 0 0;color:var(--text-muted);font-size:13px}.citation-images{display:flex;flex-wrap:wrap;gap:8px;margin-top:10px}.citation-images figure{width:min(180px,100%);margin:0}.citation-image-thumb{display:block;width:100%;padding:0;overflow:hidden;border:1px solid var(--line);border-radius:var(--radius);background:#fff}.citation-image-thumb img{display:block;width:100%;max-height:140px;object-fit:contain}.citation-images figcaption{margin-top:4px;color:var(--text-muted);font-size:12px}.chat-input{display:grid;grid-template-columns:minmax(0,1fr) auto auto auto;align-items:center;gap:12px;margin:0 14px 14px;border:1px solid var(--line);border-radius:18px;background:var(--surface);padding:10px 10px 10px 16px;box-shadow:0 8px 22px #0f172a0a;transition:border-color .16s ease,box-shadow .16s ease}.chat-image-attachment{grid-column:1 / -1;display:flex;align-items:center;gap:8px;min-width:0}.chat-image-attachment img{width:72px;height:54px;object-fit:cover;border:1px solid var(--line);border-radius:var(--radius);background:#fff}.chat-image-attachment button{width:26px;height:26px}.image-preview-backdrop{z-index:140}.image-preview-dialog{position:relative;display:grid;place-items:center;width:min(1100px,94vw);max-height:92vh;border:1px solid var(--line);border-radius:var(--radius);background:var(--surface);box-shadow:var(--shadow);padding:44px 16px 16px}.image-preview-dialog img{display:block;max-width:100%;max-height:calc(92vh - 70px);object-fit:contain;border-radius:var(--radius)}.chat-input:focus-within{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft),0 12px 28px #0f172a12}.chat-input-resizer{position:absolute;top:-6px;left:0;right:0;height:12px;cursor:row-resize;z-index:10;background:transparent}.chat-input textarea{min-height:46px;max-height:none;border:0;background:transparent;padding:9px 0;line-height:1.5;resize:none;outline:none}.chat-input span{align-self:center;color:var(--text-muted);font-size:13px}.chat-input button{width:46px;height:46px;border-radius:999px;padding:0}.chat-input-actions{display:flex;gap:12px;flex-shrink:0}.tool-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px;padding:14px}.tool-card{display:grid;grid-template-columns:auto minmax(0,1fr) auto;align-items:center;gap:8px;min-height:48px;border:1px solid var(--line);border-radius:var(--radius);background:var(--surface);padding:0 10px;text-align:left;transition:transform .16s ease,border-color .16s ease,background-color .16s ease,box-shadow .16s ease}.tool-card span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.tone-blue{color:var(--blue)}.tone-olive{color:var(--gold)}.tone-green{color:var(--green)}.tone-purple{color:var(--purple)}.tone-gold{color:var(--gold)}.tone-red{color:var(--danger)}.tone-cyan{color:var(--cyan)}.tone-pink{color:var(--pink)}.tone-indigo{color:var(--indigo)}.artifact-list{display:grid;align-content:start;gap:8px;padding:4px 14px 14px}.artifact-row{position:relative;overflow:hidden;display:grid;grid-template-columns:auto minmax(0,1fr) auto;gap:10px;align-items:center;min-height:58px;border:1px solid var(--line);border-radius:var(--radius);background:var(--surface);padding:8px 10px;transition:transform .16s ease,border-color .16s ease,background-color .16s ease,box-shadow .16s ease}@media(prefers-reduced-motion:reduce){.source-row.is-active-task:after,.artifact-row.is-active-task:after{animation:none;opacity:.55}}.breadcrumb{gap:8px;justify-content:flex-start}.breadcrumb span{color:var(--text-muted);font-size:13px}.breadcrumb .row-icon{margin-left:auto}.mindmap-title{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:14px}.mindmap-title h2{min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.table-title{display:flex;align-items:flex-start;justify-content:space-between;gap:14px;border-bottom:1px solid var(--line);padding:14px}.table-title h2{margin:0;font-size:16px}.table-title p{margin:6px 0 0;color:var(--text-muted);font-size:13px;line-height:1.5}.table-title button{display:inline-flex;align-items:center;min-height:34px;border:1px solid var(--line);border-radius:999px;background:var(--surface);padding:0 12px;white-space:nowrap}.table-artifact-scroll{min-height:0;overflow:auto;padding:14px}.artifact-table-caption{margin:0 0 10px;font-size:15px;line-height:1.35}.artifact-table{width:100%;min-width:620px;border:1px solid var(--line);border-radius:var(--radius);border-spacing:0;background:var(--surface);font-size:13px;overflow:hidden}.artifact-table th,.artifact-table td{border-right:1px solid var(--line);border-bottom:1px solid var(--line);padding:10px 12px;text-align:left;vertical-align:top;line-height:1.55}.artifact-table th{background:linear-gradient(90deg,#38bdf81a,#a78bfa1a);color:var(--text);font-weight:650}.artifact-table th:last-child,.artifact-table td:last-child{border-right:0}.artifact-table tr:last-child td{border-bottom:0}.table-source-popover{position:absolute;top:100%;right:0;z-index:100;display:flex;width:280px;flex-direction:column;margin-top:8px;border:1px solid var(--line);border-radius:12px;background:var(--surface);box-shadow:0 10px 25px #0000001a;overflow:hidden}.table-source-popover .popover-header{display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line);padding:12px 16px}.table-source-popover .popover-header>div,.table-source-popover .popover-list button{display:flex;align-items:center;gap:8px}.table-source-popover .popover-list{max-height:240px;overflow-y:auto;padding:8px}.table-source-popover .popover-list button{width:100%;margin-bottom:6px;border:1px solid var(--line);border-radius:8px;background:transparent;padding:8px;text-align:left}.table-source-popover .popover-list span{min-width:0;flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.mindmap-canvas{position:relative;min-height:0;flex:1;overflow:hidden;border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:#fff}.mindmap-flow{width:100%;height:100%;background:#fff}.mindmap-download-action{position:absolute;top:12px;right:12px;z-index:5}.mindmap-download-action button{display:inline-grid;place-items:center;width:34px;height:34px;border:1px solid var(--line);border-radius:var(--radius);background:var(--surface);box-shadow:0 8px 20px #0f172a1f}.mindmap-flow-node{max-width:270px;border:0;border-radius:7px;padding:10px 14px;color:#162033;font-weight:650;line-height:1.35;white-space:normal;box-shadow:0 8px 18px #334b781f}.mindmap-flow-node.root{background:#c9cdfd}.mindmap-flow-node.branch{background:#d5e8fb;cursor:pointer}.mindmap-flow-node.leaf{background:#9ddbd2}.mindmap-flow-node.tone-1.branch{background:#d8e3ff}.mindmap-flow-node.tone-2.branch{background:#d9f0e6}.mindmap-flow-node.tone-3.branch{background:#eee2ff}.mindmap-flow-node.tone-4.branch{background:#ffe7c7}.mindmap-flow-node.tone-5.branch{background:#ffdfe9}.mindmap-flow-node.tone-1.leaf{background:#b4d6ff}.mindmap-flow-node.tone-2.leaf{background:#9edfc5}.mindmap-flow-node.tone-3.leaf{background:#ceb6ff}.mindmap-flow-node.tone-4.leaf{background:#ffd08d}.mindmap-flow-node.tone-5.leaf{background:#ffb9d0}.mindmap-flow .react-flow__controls,.mindmap-flow .react-flow__minimap{border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:0 8px 20px #0f172a1a}.mindmap-flow .react-flow__minimap{pointer-events:none}.mindmap-flow .react-flow__attribution{display:none}.mindmap-empty-node{display:grid;place-items:center;width:260px;min-height:80px;margin:140px auto;border-radius:8px;background:#d5e8fb;font-weight:650}.artifact-feedback{justify-content:space-between;gap:8px;padding:12px}.modal-backdrop{position:fixed;inset:0;z-index:90;display:grid;place-items:center;background:#1e1f1c61;padding:18px}.delete-dialog,.upload-dialog,.settings-dialog{width:min(620px,100%);border:1px solid var(--line);border-radius:var(--radius);background:var(--surface);box-shadow:var(--shadow)}.delete-dialog,.upload-dialog{position:relative;padding:20px}.upload-dialog p{margin:8px 0 18px;color:var(--text-muted)}.close-button{position:absolute;top:14px;right:14px}.drop-zone{display:grid;justify-items:center;gap:12px;border:1px dashed var(--line-strong);border-radius:var(--radius);background:var(--surface-muted);padding:34px 18px;text-align:center}.drop-zone.dragging{border-color:var(--accent);background:var(--accent-soft)}.drop-zone span{color:var(--text-muted);font-size:13px}.upload-actions{display:flex;flex-wrap:wrap;justify-content:center;gap:8px;margin-top:4px}.settings-backdrop{position:fixed;inset:0;z-index:120;background:#1e1f1c2e}.settings-panel{display:flex;flex-direction:column;gap:18px;padding:22px;position:fixed;z-index:130;top:0;right:0;width:min(440px,100vw);height:100vh;border-left:1px solid var(--line);background:var(--surface);box-shadow:var(--shadow);overflow-y:auto;animation:slide-in-right .18s ease both}.settings-panel-header{display:flex;align-items:flex-start;justify-content:space-between;gap:16px;padding-bottom:16px;border-bottom:1px solid var(--line)}.settings-panel-header h2{margin:0;font-size:18px}.settings-panel-header p{margin:6px 0 0;color:var(--text-muted);font-size:13px;line-height:1.45}.settings-section{display:flex;flex:1;min-height:0;flex-direction:column;gap:14px}.settings-section p{margin:4px 0 0;color:var(--text-muted);font-size:13px;line-height:1.45}.settings-section-heading{display:grid;grid-template-columns:34px minmax(0,1fr);align-items:start;gap:10px}.settings-section-icon{display:grid;width:34px;height:34px;place-items:center;border:1px solid var(--line);border-radius:var(--radius);color:var(--accent-strong);background:var(--accent-soft)}.database-list-item{display:grid;grid-template-columns:minmax(0,1fr) 32px;align-items:center;gap:10px;border:1px solid var(--line);border-radius:var(--radius);background:var(--surface);padding:10px 10px 10px 12px;transition:border-color .16s ease,background .16s ease,box-shadow .16s ease}.database-list-item.is-editing{overflow:visible}.database-item-trigger{display:grid;gap:5px;min-height:38px;min-width:0;border:0;background:transparent;color:var(--text);padding:0;text-align:left}.db-item-menu{position:relative}.dropdown-menu.settings-db-menu{position:fixed;z-index:150}.database-list{display:flex;min-height:0;flex-direction:column;gap:8px;overflow-y:auto;padding-right:2px;max-height:min(52vh,420px)}.database-list-item:hover,.database-list-item:focus-within{border-color:var(--accent);background:var(--surface-muted)}.database-list-item.active{border-color:var(--accent-strong);background:color-mix(in srgb,var(--accent-soft) 72%,var(--surface));box-shadow:0 0 0 1px var(--accent-soft)}.database-name{min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-weight:650}.database-name.is-editing{overflow:visible;padding:3px;margin:-3px;white-space:normal}.database-item-trigger small,.current-label{color:var(--text-muted);font-size:12px}.database-list-item .inline-title-input{width:100%;font-size:13px}.settings-panel-actions{display:flex;justify-content:flex-end;padding-top:4px;border-top:1px solid var(--line)}.settings-panel-actions .primary-pill{display:inline-flex;align-items:center;gap:7px}.settings-dialog label,.auth-page-panel label,.announcement-form label,.account-section label,.settings-section label{display:grid;gap:6px;color:var(--text-muted);font-size:13px}@keyframes slide-in-right{0%{transform:translate(100%)}to{transform:translate(0)}}.settings-dialog input,.auth-page-panel input,.announcement-form input,.announcement-form textarea,.account-section input,.inline-title-input{min-height:38px;border:1px solid var(--line);border-radius:var(--radius);padding:0 10px;color:var(--text);outline:none;transition:border-color .16s ease,box-shadow .16s ease}.settings-dialog input:focus,.auth-page-panel input:focus,.announcement-form input:focus,.announcement-form textarea:focus,.account-section input:focus,.inline-title-input:focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft),0 12px 28px #0f172a12}.inline-title-input{width:100%;margin:-2px -4px;padding:2px 4px;font-size:inherit;font-weight:650;font-family:inherit}.announcement-form textarea{min-height:96px;padding:10px}.announcement-modal{display:grid;gap:14px;width:min(520px,100%);border:1px solid var(--line);border-radius:var(--radius);background:var(--surface);box-shadow:var(--shadow);padding:20px}.auth-page{display:grid;min-height:100vh;place-items:center;background:var(--bg);padding:24px}.auth-page-panel{display:grid;gap:14px;width:min(420px,100%);border:0;border-radius:var(--radius);background:#fff;box-shadow:none;padding:28px}.auth-page-brand{display:flex;align-items:center;gap:10px;color:var(--text);font-weight:700}.auth-page-heading{display:grid;gap:6px}.auth-page-heading h1,.account-page h1,.account-section h2,.admin-users h3{margin:0}.auth-page-heading p,.auth-page-switch{margin:0;color:var(--text-muted);font-size:14px;line-height:1.5}.auth-page-switch{display:flex;align-items:center;justify-content:center;gap:6px}.auth-page-switch button{min-height:auto;border:0;background:transparent;padding:0;color:var(--accent-strong);font-weight:650}.announcement-modal{position:relative;justify-items:start;width:min(560px,100%);padding:24px}.announcement-modal h2,.announcement-modal p{margin:0}.announcement-modal p{color:var(--text);line-height:1.6;white-space:pre-wrap}.announcement-modal>span{color:var(--text-muted);font-size:13px}.announcement-modal-icon{display:grid;place-items:center;width:42px;height:42px;border-radius:var(--radius);background:#fff7d6;color:#725600}.account-page{min-width:0;overflow:auto;padding:22px}.page-heading{display:flex;align-items:center;gap:12px;margin:0 auto 18px;width:min(1120px,100%)}.page-heading p{margin:4px 0 0;color:var(--text-muted)}.account-page-grid{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(320px,.85fr);gap:16px;width:min(1120px,100%);margin:0 auto}.admin-page-grid{grid-template-columns:minmax(320px,.8fr) minmax(0,1.4fr)}.account-section,.admin-users{display:grid;align-content:start;gap:14px;border:1px solid var(--line);border-radius:var(--radius);background:var(--surface);box-shadow:0 8px 20px #0f172a14;padding:16px}.profile-hero{display:flex;align-items:center;gap:12px;border-bottom:1px solid var(--line);padding-bottom:12px}.profile-hero div:last-child{display:grid;gap:3px}.profile-hero span{color:var(--text-muted);font-size:13px}.profile-avatar{display:grid;place-items:center;width:58px;height:58px;border-radius:var(--radius);background:var(--accent-soft);color:var(--accent-strong);overflow:hidden;font-size:22px;font-weight:750}.profile-avatar img{width:100%;height:100%;object-fit:cover}.profile-list{display:grid;gap:8px;margin:0}.profile-list div{display:grid;grid-template-columns:88px minmax(0,1fr);gap:12px;border-bottom:1px solid var(--line);padding:8px 0}.profile-list dt{color:var(--text-muted)}.profile-list dd{min-width:0;margin:0;overflow-wrap:anywhere}.login-link-section{grid-column:1 / -1}.login-link-section>p{margin:-6px 0 0}.secret-field{display:grid;grid-template-columns:minmax(0,1fr) 36px 36px;gap:8px}.secret-field input{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}.secret-field .icon-button{width:36px;height:38px}.announcement-form{display:grid;align-content:start;gap:14px;border:1px solid var(--line);border-radius:var(--radius);background:var(--surface);box-shadow:0 8px 20px #0f172a14;padding:16px}.announcement-form button,.auth-page-submit{justify-content:center;border-color:var(--accent);background:var(--accent);color:#fff}.auth-page-submit:not(:disabled),.auth-page-submit:not(:disabled):hover,.auth-page-submit:not(:disabled):focus-visible,.auth-page-submit:not(:disabled):active{border-color:var(--accent);background:var(--accent);color:#fff}.auth-page-submit:not(:disabled):focus-visible{box-shadow:0 0 0 3px var(--accent-soft);outline:none}.auth-page-submit:disabled{border-color:color-mix(in srgb,var(--accent) 62%,#ffffff);background:color-mix(in srgb,var(--accent) 62%,#ffffff);color:#fff;opacity:1}.admin-settings-card{grid-column:1 / -1}.toggle-switch{display:inline-flex;align-items:center;gap:8px;border:0;background:transparent;padding:0;color:var(--text-muted);font-size:13px;font-weight:650;transition:color .16s ease}.toggle-track{position:relative;width:46px;height:26px;border:1px solid var(--line-strong);border-radius:999px;background:var(--surface-muted);transition:background-color .16s ease,border-color .16s ease}.toggle-track span{position:absolute;top:2px;left:2px;width:22px;height:22px;border-radius:999px;background:var(--surface);box-shadow:var(--shadow-sm);transition:transform .16s ease}.toggle-switch.is-on{color:color-mix(in srgb,var(--green) 72%,var(--text))}.toggle-switch.is-on .toggle-track{border-color:color-mix(in srgb,var(--green) 50%,var(--line));background:color-mix(in srgb,var(--green) 24%,#ffffff)}.toggle-switch.is-on .toggle-track span{transform:translate(20px)}.admin-setting-row{display:flex;align-items:center;justify-content:space-between;gap:16px}.admin-setting-row strong,.latest-announcement strong{color:var(--text)}.admin-setting-row p,.latest-announcement p{margin:4px 0 0;color:var(--text-muted);font-size:13px;line-height:1.5}.latest-announcement{display:grid;gap:5px;border-top:1px solid var(--line);padding-top:12px}.latest-announcement span,.latest-announcement small{color:var(--text-muted);font-size:12px}.admin-users table{width:100%;border-collapse:collapse;font-size:13px}.admin-users th,.admin-users td{border-bottom:1px solid var(--line);padding:9px 8px;text-align:left}.admin-users th{color:var(--text-muted);font-weight:650}.inline-action{display:inline-flex;align-items:center;gap:6px;min-height:30px;border:1px solid var(--line);border-radius:var(--radius);background:var(--surface);color:var(--text);padding:0 9px}.inline-action:hover:not(:disabled){background:var(--surface-hover, rgba(0, 0, 0, .05))}.inline-action.danger{border-color:color-mix(in srgb,var(--danger) 45%,var(--line));color:var(--danger)}.muted-text{color:var(--text-muted);font-size:12px}.success-text{color:var(--green)}.dialog-actions{justify-content:flex-end;gap:8px}.statusbar{display:flex;align-items:center;justify-content:space-between;border-top:1px solid var(--line);padding:0 12px;color:var(--text-muted);font-size:12px}@media(max-width:900px){.workspace-shell{height:auto;min-height:100vh}.workspace-grid{grid-template-columns:minmax(250px,320px) minmax(0,1fr)!important;grid-auto-rows:minmax(360px,auto)}.panel-resizer{display:none}.studio-panel{grid-column:1 / -1;min-height:420px}.tool-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.account-page-grid{grid-template-columns:1fr}}@media(max-width:760px){.workspace-shell{grid-template-rows:auto minmax(0,1fr) 28px}.topbar{align-items:flex-start;padding:10px}.brand span:last-child{display:none}.topbar-actions{flex-wrap:wrap;justify-content:flex-end}.workspace-grid{grid-template-columns:1fr!important;padding:8px}.panel{min-height:360px}.tool-grid{grid-template-columns:1fr}.secret-field{grid-template-columns:minmax(0,1fr) 36px 36px}.settings-panel{width:100vw}.chat-input{grid-template-columns:minmax(0,1fr) auto}.chat-input span{grid-column:1 / -1;grid-row:2}.user-message{max-width:92%}.mindmap-flow-node{max-width:230px;font-size:13px}.mindmap-flow .react-flow__minimap{display:none}.source-reader{width:100vw}.source-reader-body{padding:20px 18px 38px}.source-reader-body h1{font-size:22px}.source-guide-card p,.source-document-text p{font-size:16px}}@media(prefers-reduced-motion:reduce){*,*:before,*:after{scroll-behavior:auto!important;transition-duration:1ms!important;animation-duration:1ms!important;animation-iteration-count:1!important}}.dropdown-backdrop{position:fixed;inset:0;z-index:60;background:transparent}.dropdown-menu{position:fixed;z-index:70;min-width:120px;border:1px solid var(--line);border-radius:var(--radius);background:var(--surface);box-shadow:0 8px 22px #0f172a24;padding:4px 0}.dropdown-menu button{display:block;width:100%;border:0;background:transparent;padding:8px 16px;color:var(--text);font-size:14px;text-align:left;cursor:pointer}.dropdown-menu button:hover{background:var(--surface-muted)}.dropdown-menu button.danger{color:var(--danger)}.delete-dialog{width:min(400px,100%)}.version-badge{cursor:pointer;transition:color .16s ease}.version-badge:hover{color:var(--accent);text-decoration:underline}.architecture-page{display:flex;flex-direction:column;height:100vh;overflow:hidden}.architecture-header{display:flex;align-items:center;gap:12px;border-bottom:1px solid var(--line);padding:12px 16px;flex-shrink:0}.architecture-header h1{margin:0;font-size:18px}.architecture-content{flex:1;overflow-y:auto;padding:16px 24px 48px;max-width:960px;margin:0 auto;width:100%;font-size:14px;line-height:1.75;color:var(--text)}.architecture-content h1{font-size:24px;margin-top:24px;margin-bottom:12px;border-bottom:1px solid var(--line);padding-bottom:8px}.architecture-content h2{font-size:20px;margin-top:32px;margin-bottom:10px}.architecture-content h3{font-size:16px;margin-top:20px;margin-bottom:8px}.architecture-content p{margin:8px 0}.architecture-content ul,.architecture-content ol{padding-left:24px;margin:8px 0}.architecture-content li{margin:4px 0}.architecture-content code{background:var(--surface-muted);padding:2px 6px;border-radius:4px;font-size:13px;font-family:SF Mono,Menlo,Monaco,monospace}.architecture-content pre{background:var(--surface-muted);border:1px solid var(--line);border-radius:8px;padding:12px 16px;overflow-x:auto;font-size:13px;line-height:1.5}.architecture-content pre code{background:none;padding:0}.architecture-content table{width:100%;border-collapse:collapse;margin:12px 0;font-size:13px}.architecture-content th,.architecture-content td{border:1px solid var(--line);padding:8px 12px;text-align:left;vertical-align:top}.architecture-content th{background:var(--surface-muted);font-weight:600}.architecture-content blockquote{border-left:3px solid var(--accent);margin:12px 0;padding:4px 16px;color:var(--text-muted);background:var(--surface-muted);border-radius:0 6px 6px 0}.architecture-content hr{border:none;border-top:1px solid var(--line);margin:24px 0}.architecture-content a{color:var(--accent)}.architecture-content img{max-width:100%;border-radius:8px;margin:8px 0}