@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,d09GMgABAAAAAA4oAA4AAAAAHbQAAA3TAAEAAAAAAAAAAAAAAAAAAAAAAAAAAAAABmAAgRQIDgmcDBEICo1oijYBNgIkA14LMgAEIAWJAAeBHAyBHBvbGiMRdnO0IkRRkiYDgr9KsJ1NUAf2kILNxgUmgqIgq1P89vcbIcmsQbRps3vCcXdYOKSWEPEKgZgQkprQQsxIXUgq0DqpGKmIvrgkeVGtEQD9DzAO29fM9jYhxZEsL2FeURH2JN4MIcTdO049NCVdxQ/w9NrSYFEBKTDKpLKfNkCGDc1RwjZLQcm3vqJ2UW9Xfa3tgAHz6ivp6vgC2yD4/6352ndnN0X0TL7seypkjZlMsjmZnf0Mm5Q+JykRWQBKCVCVPbARPXWyQtb5VgLB6Biq7/Uixcj2WGqdI8tGSgkuRG+t910GKP2D7AQH0DB9FMDW/obJZ8giFI3Wg8Cvevz0M+5m0rTh7XDBlvo9Y4vm13EXmfttwI4mBo1EG15fxJhUiCLbiiyCf/ZA6MFAhg3pGIZGdGIVjtPn6UcMk9A/UUr9PhoNsCENw1APAq0gpH73e+M+0ueyHbabc3vkbcdtzcf/fiy+NxQEjf9ud/ELBHAXJ0nk4z+MXH2Ev/kWyV4k7SkvpPc9Qr38F6RPWnM9cN6DJ0AdD1BhtgABtmoRoFCvPsBAumNm6soZG2Gk5GyVTo2sJncSyp0jQTYoR6WDvTwaaEcHsxHfvuWhHA3a6bN7twRKtcGok6NsCi7jYRrM2jExsUFMxMQYuJbMhuWNOumEJy9hi29Dmg5zMp/A5+hhPG19j1vBrq8JTLr8ki5VLPmG/PynJHVul440bxg5xuymHUFPBshC+nA9I1FmwbRBTNHAcik3Oae0cxKoI3MOriM42UrPe51nsaGxJ+WfXubAsP84aabUlQSJ1IiE0iPETLUU4CATgfXSCSpuRFRmCGbO+wSpAnzaeaCYW1VNEysRtuXCEL1kUFUbbtMv3Tilt/1c11jt3Q5bbMa84cpWipp8Elw3MZhOHsOlwwVUQM3lAR35JiFQbaYCRnMF2lxAWoOg2gyoIV4PouX8HytNIfLhqpJtXB4vjiViUI8IJ7bkC4ikkQvKksnOTKICwnqWSZ9YS5f0WCxmpgjbIq7EJcM4aI2nmhLNY2JIUgOjXZFWBHb+x5oh6cwb0Tv1ackHdKi0I9OO2wE9aogIOn540CCCziyhN+IaejtgAONKznHlHyutPrHGwCx9S6B8kfS4Mfi4Eyv7OU730bT1SCBjt834cXsf43zVjPUqqJjgrjeGnBxSG4aYAKFuVbeCfkDIjAqMb6yLNIbCuvXhMH2/+k2vkNpkORhR59N1CkzoOENvneIosjYmuTxlhUzaGEJQ/iWqx4dmwpmKjrwTiTGTCVozNAYqk/zXOndWxuWSmJkQpJw3pK5KX6QrLt5LATMqpmPAQhkhK6PUjzHUn7E0gHE0kPE0iKkolgkUx9SZmVAdDgpffdyJKg3k7VmzYGCwVXGz/tXmkOIp+vcWs+EMuhhvN0h9uhfzWJziBQmCREGSIFmQIkgVpAnSBRmC//6hkLZwaVhwxlrJSOdqlFtOYxlau9F2QN5Y98xmIAsiM1HVp2VFX+DHHGg6Ecjh3vmqtidX3qHI2qycTk/iwxSt5UzTmEP92ZBnEWTk4Mx8Mpl78ZDokxg/KWb+Q0QkvdKVmq3TMW+RXEgrsziSAfNXFMhDc60N5N9jQzjfO0kBKpUZl0ZmwJ41j/B9Hz6wmRaJB84niNmQrzp9eSlQCDDzazGDdVi3P36VZQ+Jy4f9UBNp+3zTjqI4abaFAm+GShVaXlsGdF3FYzZcDI6cori4kMxUECl9IjJZpzkvitAoxKue+90pDMvcKRxLl53TmOKCmV/xRolNKSqqUxc6LStOETmFOiLZZptlZepcKiAzteG8PEdpnQpbOMNcMsR4RR2Bs0cKFEvSmIjAFcnarqwUL4lDhHmnVkwu1IwshbiCcgvOheZuYyOteufZZwlcTlLgnZ3o/WcYdzZHW/WGaqaVfmTZ1aWCceJjkbZqsfbkOtcFlUZM/jy+hXHDbaUobWqqXaeWobbLO99yG5N3U4wxco0rQGGcOLASFMXeJoham8M+/x6O2WywK2l4HGbq1CoUyC/IZikQhdq3SiuNrvAEj0AVu9x2x3lp/xWzahaxidezFVtdcb5uEnzyl0ZmYiuKI0exvCd4Xc9CV1KB0db00z92wDPde0kukbvZIWN6jUWFTmPIC/Y4UPCm8UfDTFZpZNon1qLFTkBhxzB+FjQRA2Q/YRJT8pQigslMaUpFyAG8TMlXigiqmAZX4xgijKjRlGpLE0GdplRfCaJo0JQaSxNBk6ZmMzcya0FmrcisDdn0Q3HI2sWSppYigmlM1XT/kLQZSNpMJG0WkjYbSZuDpM1F0uYhFc1HxU4m1QJjDK6iL0S5uSj5rgXc3RejEigtcRBtqYPQsiTskmO5vosV+q4VGIKbOkDg0jtRrq+Em1YloaTFar3EGr1EUC8R0kus1Uus00usL97ABr2BjXoDm/QGNhuWtMVBKOwg/i78lT7hBsAvDmwHc/ao3vmUbBmhjeYySZNWvGkfZAgISDSaDo1SVpzGDsAEkF8B+gEapViUoZgUWXcRIGFZNm6gWbAKk0bp0k1MHG9fLYtV4iS2SmLEQFARzRcnf9PUS0LVn05/J9MiRRBU3v2IrvW974v4N00L7ZMk0wXP1409CHo/an8zTRHD3eSJ6m8D4YMkZNl3M79sqeuAsr/m3f+8/yl7A50aiAEJgeBeMWzu7ui9UfUBCe2TIqZIoOd/3/udRBOQidQZUERzb2/VwZN1H/Sju82ew2H2Wfr6qvfVf3hqwDvAIpkQVFy4B9Pe9e4/XvPeceu7h3dvO56iJPf0+A6cqA2ip18ER+iFgggiuOkvj24bby0N9j2UHIkgqIt+sVgfodC4YghLSMjSZbH0VR/6dMDrYJeKHilKTemt6v6kvzvn3/RrdWtr0GoN/xL+Sex/cPYLUpepx9cz/D46UPU5KXgAQa+NDps1v6J3xP1i2HtaDB0M9aX2deA7SYff//+gUCovMmIK/qfsFcOk+4Y5ZN97XlG6zebqtMbKgeRFi51vnxTQYBUik2rS/Cn6PC8ADR8FGxsRPB82dzfND90gIcshOcYUkfjherBz53odpm6TP8txlwOZ71xmfHHOvq053qFF/MRlS3jP0ELudrf2OeN8DHvp6ZceLe8qKYvWz/7yp0u4dKPfli3CYq0O13Ih71mylJ80tOi10On8wi+F4+LWgDPeJ30msSQt9/vkmHq9/Lvo2b461mP801v3W4xTcs6CbvF9UDdrSt+A8OUbpSh55qAUFXWznBBfdeJ8a4d7ugT5tvxUza3h9m4H7ptTqiG4z0g5dc0X29OcGlhpGFMpQo9ytTS+NViZpNdvU4kWx+LKxNY10kQ1yqGXrhe4/1nvP7E+nd5A92TtaRplbHSqoIdOqtRWti+fkB5/n1+/VvCmz12pG1kpQWsfi1ftlBobm0bpngs16CHkbIwdLnParxtTV3QYRlfJ0KFskH7pdN/YDn+yRuSd7sNH3aO0DYPggk6uWuXrfOc+fa3VTxFVvKaNxHsiHmsXyCLIE5yuOeN3/Jdf8HBL/5M6shjyhxHx9BjB1O0+4NLOnjLLSxwO7ukN4jMbOIcD879KLSi6Pk61Oqm2377n8079PXEEQ7cy7OKEC9nbpet118fxweTafpt69x/Bt8UqGzNQt7aelpc44dn5cqhwf71+qKp/Zf/+a0zcizOUWpl/iBcSXip0pplkatCchoH5c5aUM8I7/dWxAej8WicPL1URFZ9BDJelUwEwTkGqUhgSlydVes95YdXvhh9Gfz/aeFWvgVb4tuLbcv4+wLdutVZv/cUonwBD/6eDlE0aSiKK/uoH3+J1wDE/jMVqY2ysGufN84oIXB0sPzy8ollX/LegY74DgJXJR57sn+VGza0x3DnuIgABFM15LmajjjsNlYj+JEZGbuRYcAMOWxFkPN2w6Wd46xo4gVWQR/X4lyI/R6K/YK0110GzudPRW7Y+UOBGTfNNzHeYT0fiH0taunBpq9HEW8OKSaBGj21L0MqenEmNRWBAWDWAk4CpNoEZJ2tTaPFgbQYj8HxtFilErs3BTRwT8uO1NXQaWfIotchmPkAF5mMBAliEmZiOGVgCG9LgRzpscMAOOwowlT3JhusdazXGSC/hxR3UlmWVwWHpOIKheqONvjyhSiTHIkVUco5bnji8m//zL7PKaT1Vl5I6UE609f+gkr6MZKVyKc7zJRmCahLsdlyA5fdQkRSan9LgnnLEyGSkaKJCJog0wAgvepWBt80+1yKln1bMVtCljfNWDueKLsWwaEbBSfSPTEmVRsUcYYMnEjcjeyCZzBXK9E9BYBXLKjOSpUDR+nEV3TFSUdQaz+ot98QxgXwx0GQ+EEUAKB2qZPkQQ0GqFD8UPFMqyaCHM24BZmSGic9EYMagKizOw9Hz50DMrDLrqqLkTAhplMictiCAx5S3BIUQdeJeLnBy2CNtMfz6cV4u8XKoFZQesbf9YZiIERiHjaNodDW6LgcirX/mPnJIkBGDUpTBhSa0EIr38D5hCIszhCM8URGBqImoWjpvpt1ebu/v3Gl3qJfMnNM+9V+kiRFyROTPHQWOcs1dNW94/ukKMPZBvDi55i5CttdeJz84DLngLqjcdwEZ87bFFR8CIG35OAkDVN6VRDZ7aq67NteYqZ2lpT8oYB2CytoBd6VuAx4WgiAsnuj3WohG+LugzXiQRDeM3XYXlULv4dp5VFYC)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{text-indent:0;text-rendering:auto;font:1.21em/1.2 KaTeX_Main,math,Times New Roman,serif;position:relative}.katex *{border-color:currentColor;-ms-high-contrast-adjust:none!important}.katex .katex-version:after{content:"0.19.1"}.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 .reflectbox{display:inline-block;transform:scaleX(-1)}.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{--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light;--navy-950:#07182c;--navy-900:#0b2038;--navy-800:#102b49;--navy-700:#173d63;--ink:#122a43;--ink-soft:#38536e;--muted:#6e8195;--muted-light:#93a4b4;--line:#dae6f1;--line-soft:#e9f0f7;--surface:#fff;--surface-soft:#f7fbff;--page:#edf4fb;--blue:#2a78d6;--blue-deep:#1c5cab;--blue-soft:#eaf4ff;--cyan:#128ea8;--cyan-soft:#e6f8fa;--warm:#d35842;--warm-soft:#fff2ee;--amber:#a9610b;--amber-soft:#fff7e8;--green:#13845b;--green-soft:#e9f8f1;--sidebar-w:252px;--chat-w:390px;--topbar-h:66px;--radius-lg:19px;--radius-md:13px;--shadow-card:0 1px 2px #15375808, 0 10px 28px #2143680e;--font-sans:"Segoe UI Variable", "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;--font-math:"STIX Two Text", "Cambria Math", serif}*{box-sizing:border-box}html,body,#root{width:100%;height:100%}body{background:var(--page);min-width:320px;color:var(--ink);font-family:var(--font-sans);-webkit-font-smoothing:antialiased;text-rendering:optimizelegibility;margin:0}button,input,textarea{font:inherit}button{color:inherit;cursor:pointer}button:disabled{cursor:not-allowed;opacity:.55}button:focus-visible,input:focus-visible,textarea:focus-visible,summary:focus-visible{outline:2px solid var(--blue);outline-offset:2px}::selection{color:#06233f;background:#bde0ff}*{scrollbar-width:thin;scrollbar-color:#5a779359 transparent}::-webkit-scrollbar{width:7px;height:7px}::-webkit-scrollbar-thumb{background:#5a77934d;border-radius:99px}::-webkit-scrollbar-track{background:0 0}.app-shell{background:radial-gradient(circle at 44% 8%, #c5e0fa85, transparent 33%), var(--page);height:100%;overflow:hidden}.topbar{z-index:30;height:var(--topbar-h);-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);background:#ffffffeb;border-bottom:1px solid #c9dae9d9;align-items:center;gap:22px;padding:0 20px;display:flex;position:relative}.brand{align-items:center;gap:11px;min-width:214px;display:flex}.brand-mark{color:#f4fbff;background:radial-gradient(circle at 28% 24%,#ffffff47,#0000 28%),linear-gradient(145deg,#1f6dc5,#0c3765 70%);border-radius:12px;place-items:center;width:38px;height:38px;display:grid;position:relative;box-shadow:0 6px 15px #1241703d}.brand-mark i{background:#40d6b1;border:2px solid #fff;border-radius:50%;width:10px;height:10px;position:absolute;bottom:-2px;right:-2px}.brand-copy{flex-direction:column;line-height:1.15;display:flex}.brand-copy strong em{color:var(--blue);font-style:normal}.topbar-context{min-width:0;color:var(--muted);white-space:nowrap;align-items:center;gap:9px;font-size:12.5px;display:flex}.topbar-context strong{color:var(--ink-soft);text-overflow:ellipsis;font-weight:600;overflow:hidden}.context-course{color:var(--blue);font-weight:650}.context-divider{color:#c1cfdd}.topbar-actions{align-items:center;gap:8px;margin-left:auto;display:flex}.system-chip{height:29px;color:var(--ink-soft);white-space:nowrap;border:1px solid var(--line);background:#fbfdff;border-radius:99px;align-items:center;gap:5px;padding:0 10px;font-size:11.5px;font-weight:600;display:inline-flex}.system-chip.is-good,.system-chip.is-green{color:var(--green);background:var(--green-soft);border-color:#ccebdd}.system-chip.is-muted{color:var(--muted);background:#f6f8fa}.system-chip.is-warning{color:var(--amber);background:var(--amber-soft);border-color:#f2ddb6}.demo-button{color:#f8fcff;background:linear-gradient(#ffffff17,#0000),linear-gradient(135deg,#1e66b7,#124479);border:1px solid #1a508c;border-radius:10px;align-items:center;gap:7px;height:36px;padding:0 16px;font-size:12.5px;font-weight:650;transition:transform .16s,box-shadow .16s;display:inline-flex;box-shadow:0 5px 14px #1a548e2e}.demo-button:hover:not(:disabled){transform:translateY(-1px);box-shadow:0 8px 20px #1a548e40}.mobile-menu-button{width:36px;height:36px;color:var(--ink-soft);border:1px solid var(--line);background:#fff;border-radius:10px;place-items:center;display:none}.workbench{grid-template-columns:var(--sidebar-w) minmax(0, 1fr) var(--chat-w);height:calc(100% - var(--topbar-h));display:grid}.sidebar{z-index:20;color:#dbe9f7;background:radial-gradient(circle at 5% 2%,#2b70b138,#0000 31%),radial-gradient(circle at 100% 85%,#1b939c1a,#0000 36%),linear-gradient(177deg,#0a2038 0%,#081a2e 60%,#07182a 100%);border-right:1px solid #05132280;flex-direction:column;min-height:0;display:flex;position:relative;overflow:hidden}.sidebar:after{z-index:-1;pointer-events:none;content:"";opacity:.45;background-image:radial-gradient(#89b9e61f .65px,#0000 .65px);background-size:19px 19px;position:absolute;inset:0}.sidebar-mobile-head{display:none}.sidebar-campaign{background:#ffffff09;border:1px solid #8dbde924;border-radius:12px;align-items:center;gap:10px;margin:17px 15px 8px;padding:11px 12px;display:flex}.campaign-mark{color:#77d8e5;background:#2c8c9f26;border:1px solid #6dc9d938;border-radius:9px;flex:none;place-items:center;width:30px;height:30px;display:grid}.sidebar-campaign div{flex-direction:column;gap:3px;min-width:0;display:flex}.sidebar-campaign strong{color:#e9f4ff;text-overflow:ellipsis;white-space:nowrap;font-size:12px;font-weight:650;overflow:hidden}.sidebar-campaign span{color:#7f9bb4;letter-spacing:.025em;font-size:9.5px}.sidebar-scroll{flex:1;min-height:0;padding:8px 12px 14px;overflow-y:auto}.sidebar-label{color:#7391ac;letter-spacing:.14em;text-transform:uppercase;justify-content:space-between;align-items:center;padding:0 8px 8px;font-size:9.5px;font-weight:650;display:flex}.experiment-nav{flex-direction:column;gap:4px;display:flex}.experiment-nav-item{text-align:left;background:0 0;border:1px solid #0000;border-radius:11px;grid-template-columns:23px 29px minmax(0,1fr) 8px;align-items:center;gap:7px;width:100%;padding:10px 9px;transition:background .16s,border-color .16s;display:grid;position:relative}.experiment-nav-item:hover{background:#ffffff0b}.experiment-nav-item.is-active{background:linear-gradient(100deg,#266fb245,#1f5b921a);border-color:#68b0ee38;box-shadow:inset 2px 0 #55b6e8}.experiment-index{color:#577896;font-family:Cascadia Mono,Consolas,monospace;font-size:9.5px}.experiment-icon{color:#8fb4d5;background:#ffffff09;border:1px solid #82b1da21;border-radius:8px;place-items:center;width:27px;height:27px;display:grid}.experiment-nav-item.is-active .experiment-icon{color:#82d9f2;background:#3a96b921;border-color:#5bbcdb33}.experiment-copy{flex-direction:column;gap:2px;min-width:0;display:flex}.experiment-copy strong{color:#c6d8e9;text-overflow:ellipsis;white-space:nowrap;font-size:12.5px;font-weight:600;overflow:hidden}.experiment-copy small{color:#6e8aa2;text-overflow:ellipsis;white-space:nowrap;font-size:9.5px;overflow:hidden}.experiment-active-dot{background:0 0;border-radius:50%;width:5px;height:5px}.experiment-nav-item.is-active .experiment-active-dot{background:#54d7d2;box-shadow:0 0 0 3px #54d7d21a}.course-section{margin-top:23px}.course-group{border-radius:9px;margin-bottom:4px}.course-group>summary::-webkit-details-marker{display:none}.course-group[open]>summary .lucide-chevron-down{transform:rotate(180deg)}.course-group>summary svg{transition:transform .16s}.chapter-list{border-left:1px solid #7aa8cf24;flex-direction:column;gap:1px;margin:1px 3px 7px 10px;padding-left:8px;display:flex}.chapter-item{color:#7d9ab4;text-align:left;background:0 0;border:0;border-radius:6px;align-items:center;gap:8px;width:100%;padding:6px 7px;font-size:10.5px;display:flex}.chapter-item span{text-overflow:ellipsis;white-space:nowrap;flex:1;min-width:0;display:block;overflow:hidden}.chapter-item small{color:#536f87;font-variant-numeric:tabular-nums;flex:none;font-size:8.5px}.sidebar-loading{gap:8px;padding:10px;display:grid}.skeleton-line{background:#759dbf21;border-radius:6px;height:8px;animation:1.4s ease-in-out infinite pulse}.skeleton-line.short{width:64%}.sidebar-footer{background:#04101d47;border-top:1px solid #7da4c71f;flex:none;padding:12px 14px 14px}.kb-status{align-items:center;gap:9px;display:flex}.kb-icon{color:#7d9db8;background:#ffffff09;border:1px solid #7ca6cb29;border-radius:8px;flex:none;place-items:center;width:29px;height:29px;display:grid}.kb-status div{flex-direction:column;gap:2px;min-width:0;display:flex}.kb-status strong{color:#bdd3e5;font-size:10.5px;font-weight:600}.kb-status span{color:#66849e;text-overflow:ellipsis;white-space:nowrap;font-size:8.5px;overflow:hidden}.sidebar-footnote{color:#536f87;align-items:center;gap:6px;margin-top:10px;font-size:9px;display:flex}.footnote-dot{background:#4b7fa7;border-radius:50%;width:4px;height:4px}.sidebar-backdrop{display:none}.main-panel{background:radial-gradient(at 50% -15%,#d0e5f980,#0000 45%),linear-gradient(#f3f8fd 0%,#eef5fb 100%);min-width:0;min-height:0;overflow:hidden}.experiment-hero{justify-content:space-between;align-items:flex-end;gap:28px;max-width:1180px;margin:0 auto 18px;padding:4px 2px 0;display:flex}.hero-kicker{color:var(--blue);letter-spacing:.12em;align-items:center;gap:9px;margin-bottom:8px;font-size:9.5px;font-weight:700;display:flex}.hero-kicker i{background:#a8c4dd;width:18px;height:1px}.hero-kicker span:last-child{color:#8ba0b3;letter-spacing:.09em;font-weight:600}.hero-copy h1{color:#102b49;letter-spacing:-.052em;margin:0;font-size:clamp(27px,2.35vw,34px);font-weight:730;line-height:1.16}.hero-copy p{max-width:660px;color:var(--muted);margin:8px 0 0;font-size:12.5px;line-height:1.74}.hero-side{flex-direction:column;flex:none;align-items:flex-end;gap:8px;padding-bottom:3px;display:flex}.hero-tags{flex-wrap:wrap;justify-content:flex-end;gap:5px;display:flex}.hero-tags span{color:#4e6d8a;background:#ffffffa6;border:1px solid #d8e6f2;border-radius:6px;padding:4px 8px;font-size:9.5px;font-weight:600}.hero-link{color:#7190aa;align-items:center;gap:4px;font-size:9.5px;display:flex}.linkage-banner{color:#174b78;background:linear-gradient(95deg,#ecf8ff,#f4fbff);border:1px solid #b9dcf5;border-radius:12px;align-items:center;gap:11px;max-width:1180px;margin:0 auto 14px;padding:10px 13px;animation:.3s both banner-in;display:flex;box-shadow:0 5px 18px #3674a50e}.linkage-icon{color:#fff;background:linear-gradient(135deg,#2b8cc8,#2360aa);border-radius:8px;flex:none;place-items:center;width:28px;height:28px;display:grid}.linkage-banner div{flex-direction:column;flex:1;gap:2px;display:flex}.linkage-banner button{color:#64829d;background:0 0;border:0;border-radius:6px;place-items:center;width:24px;height:24px;display:grid}.linkage-banner button:hover{background:#25649714}.lab-content{flex-direction:column;gap:15px;max-width:1180px;margin:0 auto;display:flex}.surface{border-radius:var(--radius-lg);background:var(--surface);box-shadow:var(--shadow-card);border:1px solid #d0dfeceb}.surface-head{justify-content:space-between;align-items:flex-start;gap:16px;margin-bottom:13px;display:flex}.eyebrow{color:#7b93a9;letter-spacing:.14em;margin-bottom:3px;font-size:8.5px;font-weight:700;display:block}.surface-head h2,.surface-head h3{color:#173653;letter-spacing:-.025em;margin:0;font-weight:680}.surface-head h2{font-size:16px}.surface-head h3{font-size:14px}.toolbar{flex-wrap:wrap;justify-content:flex-end;gap:5px;display:flex}.tool-toggle{color:#657e94;background:#fbfdff;border:1px solid #dfe9f2;border-radius:8px;align-items:center;gap:5px;height:29px;padding:0 9px;font-size:9.5px;font-weight:600;transition:border-color .15s,color .15s,background .15s;display:inline-flex}.tool-toggle:hover{color:#2b628e;border-color:#c4dcef}.status-pill{color:#5d778d;background:#f9fcff;border:1px solid #dfe9f2;border-radius:99px;align-items:center;gap:5px;height:29px;padding:0 10px;font-size:9.5px;font-weight:600;display:inline-flex}.status-pill:before{content:"";background:#98a9b8;border-radius:50%;width:5px;height:5px}.scene-shell{aspect-ratio:800/520;background:#f7fbff;border:1px solid #dce9f4;border-radius:14px;width:100%;position:relative;overflow:hidden}.scene-shell:after{z-index:2;pointer-events:none;content:"";border-radius:inherit;position:absolute;inset:0;box-shadow:inset 0 0 60px #22537c0b}.potential-canvas{opacity:.84;width:100%;height:100%;position:absolute;inset:0}.scene-svg{z-index:1;touch-action:none;-webkit-user-select:none;user-select:none;width:100%;height:100%;display:block;position:relative}.scene-svg.is-dragging,.scene-svg.is-dragging *{cursor:grabbing}.draggable-charge,.draggable-probe{cursor:grab}.draggable-charge:focus-visible circle,.draggable-probe:focus-visible rect{outline:2px solid #174f84}.axis-label{fill:#7991a7;font-family:Cascadia Mono,Consolas,monospace;font-size:10px}.charge-symbol{pointer-events:none;font-size:23px;font-weight:500}.charge-label,.probe-label,.probe-label-strong{font-family:var(--font-sans);fill:#264961;pointer-events:none;font-size:10px}.probe-label{fill:#8b6a39;font-size:9px}.probe-label-strong{fill:#8b5616;font-weight:700}.scene-hint{z-index:3;color:#5d758b;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);background:#ffffffdb;border:1px solid #c6d9e9d9;border-radius:7px;align-items:center;gap:6px;padding:5px 9px;font-size:9px;display:flex;position:absolute;bottom:12px;right:13px}.hint-dot{background:#37a58c;border-radius:50%;width:5px;height:5px}.scene-scale{z-index:3;color:#778da1;align-items:center;gap:6px;font-size:8.5px;display:flex;position:absolute;bottom:12px;left:15px}.scale-bar{border-bottom:1px solid #748ba0;border-left:1px solid #748ba0;border-right:1px solid #748ba0;width:40px;height:5px;display:block}.scene-legend{color:#71879a;flex-wrap:wrap;gap:7px 16px;padding:10px 4px 0;font-size:9px;display:flex}.scene-legend span{align-items:center;gap:5px;display:flex}.legend-dot{border-radius:50%;width:7px;height:7px}.legend-dot.positive{background:#d94b42}.legend-dot.negative{background:#3278cc}.legend-line{background:#2563ad;width:16px;height:1px}.legend-line:after{content:"";border-top:3px solid #0000;border-bottom:3px solid #0000;border-left:4px solid #2563ad;width:0;height:0;margin-top:-2.5px;margin-left:11px;display:block}.legend-dash{border-top:1px dashed #2a6c99;width:15px;height:0}.lab-grid{grid-template-columns:minmax(0,1.14fr) minmax(300px,.86fr);align-items:start;gap:15px;display:grid}.preset-row{flex-wrap:wrap;gap:5px;margin-bottom:11px;display:flex}.preset-row.align-right{justify-content:flex-end;margin:11px 0 0}.chip-button{color:#4d6d87;background:#fbfdff;border:1px solid #dbe7f1;border-radius:7px;height:27px;padding:0 9px;font-size:9.5px;font-weight:600}.chip-button:hover{color:var(--blue-deep);background:#f2f9ff;border-color:#b9d7ef}.parameter-groups{gap:8px;display:grid}.parameter-group{background:linear-gradient(110deg,#fbfdff,#f9fcff);border:1px solid #e2ecf4;border-radius:11px;padding:12px}.parameter-title{align-items:center;gap:8px;margin-bottom:8px;display:flex}.parameter-title>div{flex-direction:column;gap:1px;display:flex}.charge-key{border-radius:7px;flex:none;place-items:center;width:26px;height:26px;font-family:Cascadia Mono,Consolas,monospace;font-size:12px;font-weight:700;display:grid}.charge-key.positive{color:#b44939;background:#fff3f0;border:1px solid #f0ccc5}.charge-key.negative,.charge-key.blue-key{color:#2568ad;background:#eff7ff;border:1px solid #c8def3}.charge-key.teal-key{color:#177e84;background:#edfbfb;border:1px solid #c5e4e4}.charge-key.probe{color:#a05e10;background:#fff8e9;border:1px solid #eed7ac}.slider-field{--slider-accent:#2a78d6;margin-top:8px;display:block}.slider-field:first-of-type{margin-top:0}.slider-red{--slider-accent:#d35b49}.slider-cyan{--slider-accent:#1299a9}.slider-label-row{justify-content:space-between;align-items:center;gap:8px;margin-bottom:4px;display:flex}.slider-value{color:#294963;font-variant-numeric:tabular-nums;font-family:Cascadia Mono,Consolas,monospace;font-size:9.5px;font-weight:650}.slider-unit{color:#8fa2b4;font-family:var(--font-sans);margin-left:2px;font-size:8px;font-weight:500}.slider-field input[type=range]{width:100%;height:16px;accent-color:var(--slider-accent);cursor:pointer;margin:0;display:block}.slider-field input[type=range]::-webkit-slider-runnable-track{background:#e2ebf3;border-radius:99px;height:4px}.slider-field input[type=range]::-webkit-slider-thumb{appearance:none;background:var(--slider-accent);border:2px solid #fff;border-radius:50%;width:13px;height:13px;margin-top:-4.5px;box-shadow:0 1px 4px #1a3f6338}.slider-field input[type=range]::-moz-range-track{background:#e2ebf3;border-radius:99px;height:4px}.slider-field input[type=range]::-moz-range-thumb{background:var(--slider-accent);border:2px solid #fff;border-radius:50%;width:11px;height:11px}.slider-hint{color:#9aa9b7;margin-top:2px;font-size:8.5px;display:block}.two-col-sliders{grid-template-columns:1fr 1fr;gap:12px;display:grid}.probe-group{background:linear-gradient(110deg,#fffdf8,#fffaf1);border-color:#eee2cd}.live-indicator{color:#6c8a72;white-space:nowrap;align-items:center;gap:5px;font-size:8.5px;display:inline-flex}.live-indicator i{background:#28a77c;border-radius:50%;width:5px;height:5px;animation:2.4s ease-in-out infinite live-pulse;box-shadow:0 0 0 3px #28a77c1a}.metric-grid{grid-template-columns:1fr 1fr;gap:7px;display:grid}.metric{background:#fbfdff;border:1px solid #e6eef5;border-radius:10px;flex-direction:column;gap:3px;min-width:0;padding:10px;display:flex}.metric-warm{background:linear-gradient(130deg,#fffaf7,#fff);border-color:#f1e0d8}.metric-blue{background:linear-gradient(130deg,#f7fbff,#fff);border-color:#dceaf7}.metric-good{background:linear-gradient(130deg,#f5fcf9,#fff);border-color:#d9eee5}.metric-label{color:#7d91a4;text-overflow:ellipsis;white-space:nowrap;font-size:8.5px;overflow:hidden}.metric-value{color:#1a3e5b;font-variant-numeric:tabular-nums;letter-spacing:-.025em;text-overflow:ellipsis;white-space:nowrap;font-size:18px;font-weight:650;overflow:hidden}.metric-sub{color:#9aabb9;text-overflow:ellipsis;white-space:nowrap;font-size:8px;overflow:hidden}.formula-card.compact{margin-top:10px}.formula-card.large{flex-direction:column;gap:6px;margin-top:0;padding:11px;display:flex}.formula-line{min-width:0;color:var(--ink-soft);justify-content:space-between;align-items:center;gap:10px;font-size:11px;display:flex}.formula-line+.formula-line{margin-top:5px}.formula{vertical-align:middle;max-width:100%;display:inline-block;overflow:auto hidden}.formula-block{width:100%;display:block}.katex{font-size:1em}.katex-display{margin:.5em 0;overflow:auto hidden}.formula-line .katex{font-size:.94em}.formula-line>span:last-child:not(.formula){color:#94a6b6;flex:none;font-size:8px}.midpoint-head{justify-content:space-between;align-items:center;gap:8px;margin-bottom:4px;display:flex}.midpoint-head span{color:#5e7b94;font-size:9.5px;font-weight:650}.midpoint-head strong{color:#2569a2;background:#e5f4ff;border-radius:4px;padding:2px 6px;font-size:8px}.midpoint-check p{color:#7990a4;margin:0;font-size:8.8px;line-height:1.65}.insight-band{background:linear-gradient(100deg,#ecf8ffe6,#fafdffd9),#fbfdff;border:1px solid #d7e8f4;border-radius:14px;align-items:flex-start;gap:11px;max-width:1180px;margin:0 auto;padding:14px 16px;display:flex}.insight-icon{color:#1c6b9e;width:30px;height:30px;font-family:var(--font-math);background:#f2faff;border:1px solid #cce3f4;border-radius:9px;flex:none;place-items:center;font-size:16px;font-weight:650;display:grid}.insight-band>div:nth-child(2){flex:1;min-width:0}.insight-band strong{color:#244b69;font-size:10.5px;font-weight:700}.insight-band p{color:#748da1;margin:3px 0 0;font-size:9.5px;line-height:1.7}.insight-tag{color:#6b899f;background:#ffffffb3;border:1px solid #d8e6f0;border-radius:5px;flex:none;padding:3px 7px;font-size:8px}.scene-kicker{letter-spacing:.11em;fill:#829bb0;font-family:Cascadia Mono,Consolas,monospace;font-size:8.5px}.scene-annotation{font-family:var(--font-sans);fill:#59768d;font-size:10px}.dielectric-label{font-family:var(--font-sans);fill:#3b7d82;font-size:9.5px}.field-label{fill:#285d8d;font-family:Cascadia Mono,Consolas,monospace;font-size:9.5px}.plate-sign{font-family:var(--font-sans);font-size:12px;font-weight:600}.positive-sign{fill:#b84f43}.negative-sign{fill:#2c67a7}.circuit-mark{font-family:var(--font-sans);fill:#5c7488;font-size:10px}.circuit-label{font-family:var(--font-sans);fill:#ad741e;font-size:8.5px}.circuit-projector{font-family:var(--font-sans);fill:#4c6e89;font-size:8.5px}.flux-label{font-family:var(--font-sans);fill:#7c91a3;font-size:8.5px}.flux-value{fill:#1b4263;font-family:Cascadia Mono,Consolas,monospace;font-size:16px;font-weight:650}.flux-unit{font-family:var(--font-sans);fill:#96a7b6;font-size:7.5px}.surface-field-strip{color:#8093a4;background:#fbfdff;border:1px solid #e5edf4;border-radius:8px;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:5px;margin-top:8px;padding:7px 9px;font-size:8.5px;display:flex}.surface-field-strip strong{color:#3a5b74;font-size:9px;font-weight:650}.inline-warning{color:#936018;background:#fff9ee;border:1px solid #efdcb8;border-radius:8px;margin:8px 0 0;padding:8px 9px;font-size:8.5px;line-height:1.5}.gauss-metrics .metric-value{font-size:15px}.two-column-groups{grid-template-columns:1fr 1fr}.two-column-groups .parameter-group:nth-child(n+3){grid-column:auto}.highlight-parameter{background:linear-gradient(110deg,#f9fdff,#f2faff);border-color:#d1e6f3}.mode-switch{background:#f7fafd;border:1px solid #e1ebf3;border-radius:10px;grid-template-columns:1fr 1fr;gap:5px;margin-bottom:9px;padding:4px;display:grid}.mode-switch button{text-align:left;background:0 0;border:1px solid #0000;border-radius:7px;flex-direction:column;gap:1px;padding:7px 9px;display:flex}.mode-switch button span{color:#5b7388;font-size:10px;font-weight:650}.mode-switch button small{color:#97a7b5;font-size:8px}.mode-switch button.is-active span{color:#1e5c91}.condition-note{border-radius:10px;margin-top:9px;padding:10px}.condition-note.is-voltage{color:#285b83;background:#f1f9ff;border:1px solid #cfe6f7}.condition-note.is-charge{color:#80581f;background:#fff9ef;border:1px solid #efdfc4}.condition-note strong{font-size:9.5px;font-weight:700}.condition-note p{margin:3px 0 0;font-size:8.6px;line-height:1.6}.theory-chart-grid{grid-template-columns:minmax(0,.92fr) minmax(0,1.08fr);align-items:stretch;gap:15px;display:grid}.model-note{color:#8b9dac;margin:9px 0 0;font-size:8.8px;line-height:1.6}.chart-card{border-radius:var(--radius-lg);background:var(--surface);box-shadow:var(--shadow-card);border:1px solid #d0dfeceb;flex-direction:column;padding:13px 14px 10px;display:flex}.chart-head{justify-content:space-between;align-items:flex-start;gap:8px;margin-bottom:5px;display:flex}.chart-head>div{flex-direction:column;gap:2px;display:flex}.chart-head strong{color:#284b68;font-size:10.5px;font-weight:650}.chart-badge{color:#5e829f;background:#f9fcff;border:1px solid #dce9f2;border-radius:4px;padding:2px 6px;font-size:7.5px}.mini-chart{width:100%;height:auto;display:block;overflow:visible}.chart-tick{fill:#8296a8;font-family:Cascadia Mono,Consolas,monospace;font-size:7.5px}.chart-axis-name{font-family:var(--font-sans);fill:#8ea0af;font-size:7.5px}.chart-direct-label{font-family:var(--font-sans);fill:#345a77;font-size:8px;font-weight:600}.chart-tooltip-text{fill:#f3f9ff;font-family:Cascadia Mono,Consolas,monospace;font-size:7.5px}.chart-footnote{color:#91a2b0;margin:5px 0 0;font-size:8px;line-height:1.5}.chart-table{margin-top:4px}.chart-table summary{color:#7f95a8;cursor:pointer;font-size:8px}.table-scroll{max-height:140px;overflow:auto}.chart-table table{border-collapse:collapse;width:100%;margin-top:5px;font-size:8px}.chart-table th,.chart-table td{text-align:right;border-bottom:1px solid #edf2f6;padding:3px 5px}.chart-table th{color:#879aa9;font-weight:600}.chart-table td{color:#597087;font-variant-numeric:tabular-nums}.chat-panel{z-index:15;background:#fff;border-left:1px solid #d5e3ef;flex-direction:column;min-width:0;min-height:0;display:flex;position:relative;overflow:hidden}.chat-head{border-bottom:1px solid #edf3f8;justify-content:space-between;align-items:center;gap:10px;padding:15px 16px 10px;display:flex}.chat-title{align-items:center;gap:9px;display:flex}.chat-icon{color:#effbff;background:radial-gradient(circle at 30% 25%,#ffffff3d,#0000 28%),linear-gradient(140deg,#1e75c3,#0d3b6b);border-radius:10px;place-items:center;width:34px;height:34px;display:grid;box-shadow:0 5px 12px #174e822e}.chat-title>div{flex-direction:column;gap:2px;display:flex}.chat-title strong{color:#173854;letter-spacing:-.015em;font-size:13px;font-weight:700}.connection-badge{border-radius:99px;align-items:center;gap:4px;padding:3px 7px;font-size:8.5px;font-weight:600;display:inline-flex}.chat-context-bar{color:#8fa1b0;background:#fbfdff;border-bottom:1px solid #f0f5f9;align-items:center;gap:5px;padding:6px 16px;font-size:8px;display:flex}.context-dot{background:#b1c0cc;border-radius:50%;width:2px;height:2px;margin:0 2px}.chat-scroll{background:radial-gradient(at 50% -5%,#e1f2ff80,#0000 41%),#fbfdff;flex:1;min-height:0;padding:13px 14px 16px;overflow-y:auto}.chat-intro{text-align:center;flex-direction:column;align-items:center;padding:18px 5px 8px;display:flex}.intro-orbit{place-items:center;width:75px;height:75px;margin-bottom:13px;display:grid;position:relative}.orbit-ring{border:1px solid #c4def2;border-radius:50%;position:absolute}.ring-one{border-style:dashed;animation:28s linear infinite slow-spin;inset:7px}.ring-two{border-color:#93c1de61;inset:0}.orbit-core{color:#fff;background:linear-gradient(145deg,#2b80c7,#17508a);border-radius:50%;place-items:center;width:43px;height:43px;display:grid;box-shadow:0 8px 22px #2469a433}.offline-callout{color:#795b22;text-align:left;background:#fffaf0;border:1px solid #efdfc1;border-radius:9px;align-items:flex-start;gap:8px;width:100%;margin-bottom:13px;padding:9px 10px;display:flex}.offline-callout div{flex-direction:column;gap:2px;display:flex}.offline-callout span{color:#977a44;font-size:8.5px;line-height:1.5}.example-list{flex-direction:column;gap:5px;width:100%;display:flex}.example-label{color:#9aaab8;letter-spacing:.08em;text-align:left;margin-bottom:2px;font-size:8px;font-weight:600}.example-list button{color:#537086;text-align:left;background:#ffffffde;border:1px solid #e2ecf4;border-radius:8px;align-items:center;gap:9px;width:100%;padding:8px 9px;font-size:9.5px;line-height:1.45;transition:border-color .15s,transform .15s,background .15s;display:flex}.example-list button:hover{background:#f8fcff;border-color:#bad8ee;transform:translate(2px)}.example-index{color:#a2b3c1;flex:none;font-family:Cascadia Mono,Consolas,monospace;font-size:8px}.example-list button>span:nth-child(2){flex:1}.example-arrow{color:#8ab1d1;flex:none;font-size:11px}.intro-meta{color:#93a5b4;flex-wrap:wrap;justify-content:center;gap:10px;margin-top:14px;font-size:8px;display:flex}.intro-meta span{align-items:center;gap:4px;display:flex}.message-list{flex-direction:column;gap:15px;display:flex}.message{gap:8px;display:flex}.user-message{justify-content:flex-end;align-items:flex-end}.user-bubble{color:#f4fbff;white-space:pre-wrap;background:linear-gradient(135deg,#256eb6,#194e83);border-radius:13px 13px 3px;max-width:82%;padding:10px 12px;font-size:11px;line-height:1.65;box-shadow:0 6px 15px #184e7e24}.user-avatar{color:#6d8498;background:#fff;border:1px solid #dfe9f1;border-radius:8px;flex:none;place-items:center;width:25px;height:25px;font-size:8px;display:grid}.assistant-message{align-items:flex-start}.assistant-avatar{color:#e9f9ff;background:linear-gradient(145deg,#2774b8,#143f6b);border-radius:8px;flex:none;place-items:center;width:27px;height:27px;display:grid;box-shadow:0 4px 10px #17446b21}.assistant-body{flex:1;min-width:0}.message-meta{color:#668096;flex-wrap:wrap;align-items:center;gap:7px;margin-bottom:6px;font-size:8.5px;font-weight:600;display:flex}.mode-badge{border-radius:4px;align-items:center;gap:3px;padding:2px 5px;font-size:7.5px;font-weight:600;display:inline-flex}.message-notice{border-radius:7px;align-items:flex-start;gap:6px;margin-bottom:7px;padding:6px 7px;font-size:8px;line-height:1.5;display:flex}.message-notice.offline{color:#7b5a20;background:#fffbf2;border:1px solid #f0e1c3}.message-notice.warning{color:#8d3c1d;background:#fff7f2;border:1px solid #f0d2c4}.message-notice.online{color:#28654f;background:#f4fcf8;border:1px solid #d3ebdf}.message-notice span{flex:1}.message-notice button{color:inherit;opacity:.6;background:0 0;border:0}.markdown-body{color:#3d586f;overflow-wrap:anywhere;font-size:10.5px;line-height:1.76}.markdown-body>:first-child{margin-top:0}.markdown-body>:last-child{margin-bottom:0}.markdown-body h3{color:#1d4564;margin:12px 0 5px;font-size:11.5px;font-weight:700}.markdown-body strong{color:#294b65;font-weight:650}.markdown-body ul,.markdown-body ol{margin:5px 0;padding-left:18px}.markdown-body li{margin:2px 0}.markdown-body blockquote{color:#7c6229;background:#fffbf0;border-left:2px solid #e2b95e;border-radius:0 6px 6px 0;margin:8px 0;padding:7px 9px}.markdown-body code{color:#285e87;background:#f0f6fb;border-radius:3px;padding:1px 4px;font-size:.94em}.markdown-body pre{background:#f7fafc;border:1px solid #e1eaf2;border-radius:7px;padding:8px;overflow-x:auto}.markdown-body pre code{background:0 0;padding:0}.markdown-body a{color:var(--blue-deep)}.markdown-body table{border-collapse:collapse;max-width:100%;display:block;overflow-x:auto}.markdown-body th,.markdown-body td{border:1px solid #e4ebf2;padding:4px 6px}.markdown-body .katex-display{margin:8px 0;font-size:.96em}.markdown-body hr{background:#e9eff4;border:0;height:1px;margin:10px 0}.linkage-note{color:#2d6d9d;background:#f3faff;border:1px solid #d9ebf8;border-radius:7px;flex-wrap:wrap;align-items:center;gap:5px;margin-top:8px;padding:6px 8px;font-size:8.5px;display:flex}.linkage-note span{font-weight:650}.linkage-note small{color:#8da4b7;width:100%;font-size:7.5px}.source-list{border-top:1px solid #eaf0f5;margin-top:9px}.source-heading{color:#70899d;align-items:center;gap:5px;padding:8px 0 5px;font-size:8.5px;font-weight:650;display:flex}.source-item{background:#fbfdff;border:1px solid #e5edf4;border-radius:7px;margin-bottom:3px;overflow:hidden}.source-summary{text-align:left;background:0 0;border:0;align-items:center;gap:5px;width:100%;padding:6px 7px;display:flex}.source-number{color:#6087a4;background:#fff;border:1px solid #dce9f2;border-radius:4px;flex:none;place-items:center;width:16px;height:16px;font-family:Cascadia Mono,Consolas,monospace;font-size:7.5px;display:grid}.source-title{flex-direction:column;flex:1;gap:1px;min-width:0;display:flex}.source-title strong,.source-title small{text-overflow:ellipsis;white-space:nowrap;overflow:hidden}.source-title strong{color:#4a657b;font-size:8.5px;font-weight:650}.source-relevance{color:#6b91ad;font-variant-numeric:tabular-nums;flex:none;font-size:7.5px}.source-chevron{color:#a1b1bd;flex:none;transition:transform .15s}.source-item.is-open .source-chevron{transform:rotate(180deg)}.source-detail p{color:#748b9e;white-space:pre-wrap;background:#fff;border-left:2px solid #dceaf5;border-radius:0 5px 5px 0;max-height:150px;margin:0;padding:7px;font-size:8.5px;line-height:1.62;overflow-y:auto}.source-meta{color:#9aabb8;margin-top:4px;font-size:7px}.no-sources{color:#9baab7;border:1px dashed #dfe8ef;border-radius:6px;margin-top:8px;padding:7px;font-size:8.5px}.follow-up-chip{color:#34698e;text-align:left;background:#f6fbff;border:1px dashed #c9e0f0;border-radius:8px;align-items:flex-start;gap:6px;width:100%;margin-top:9px;padding:8px 9px;font-size:8.8px;line-height:1.55;display:flex}.follow-up-chip svg{color:#7ca9c8;flex:none;margin-top:1px}.pending-message{opacity:.88}.thinking-row{color:#61809b;background:#fbfdff;border:1px solid #e2edf5;border-radius:8px;align-items:center;gap:7px;padding:8px 10px;font-size:9.5px;display:flex}.spin{animation:1s linear infinite spin}.thinking-lines{gap:5px;margin-top:8px;display:grid}.thinking-lines i{background:linear-gradient(90deg,#edf3f8,#e4eef6,#edf3f8) 0 0/200% 100%;border-radius:6px;height:6px;animation:1.6s linear infinite shimmer;display:block}.thinking-lines i:nth-child(2){width:84%}.thinking-lines i:nth-child(3){width:58%}.chat-error{color:#944a32;background:#fff8f4;border:1px solid #efd4c9;border-radius:8px;align-items:flex-start;gap:7px;padding:9px;display:flex}.chat-error div{flex-direction:column;gap:2px;display:flex}.chat-error span{color:#a16a57;font-size:8.5px;line-height:1.5}.composer-wrap{background:#fff;border-top:1px solid #edf3f8;flex:none;padding:10px 13px 9px}.composer{background:#fbfdff;border:1px solid #d5e4ef;border-radius:12px;padding:8px 9px 6px;transition:border-color .15s,box-shadow .15s;box-shadow:0 2px 8px #214d6f09}.composer textarea{resize:none;color:#38536a;background:0 0;border:0;outline:0;width:100%;min-height:36px;max-height:120px;padding:3px 3px 5px;font-size:10.5px;line-height:1.5;display:block}.composer-actions{justify-content:space-between;align-items:center;gap:8px;display:flex}.composer-hint{color:#a0afbb;font-size:7.5px}.send-button{color:#fff;background:linear-gradient(140deg,#2a78d6,#1b5796);border:0;border-radius:8px;place-items:center;width:29px;height:29px;display:grid;box-shadow:0 4px 9px #1e5d9b2e}.composer-disclaimer{color:#a3b1bd;text-align:center;margin:5px 0 0;font-size:7.5px}.app-footer{color:#95a6b5;flex-wrap:wrap;justify-content:space-between;gap:8px;max-width:1180px;margin:5px auto 0;padding:0 2px;font-size:8px;display:flex}.mobile-tabs{display:none}.toast{z-index:100;color:#eff8ff;background:#0e2c48f0;border:1px solid #9dc8e833;border-radius:99px;padding:8px 14px;font-size:10.5px;animation:.25s both toast-in;position:fixed;bottom:22px;left:50%;transform:translate(-50%);box-shadow:0 8px 28px #0a233a33}@keyframes spin{to{transform:rotate(360deg)}}@keyframes slow-spin{to{transform:rotate(360deg)}}@keyframes pulse{0%,to{opacity:.5}50%{opacity:1}}@keyframes shimmer{to{background-position:-200% 0}}@keyframes live-pulse{0%,to{box-shadow:0 0 0 3px #28a77c14}50%{box-shadow:0 0 0 5px #28a77c08}}@keyframes banner-in{0%{opacity:0;transform:translateY(-5px)}to{opacity:1;transform:translateY(0)}}@keyframes toast-in{0%{opacity:0;transform:translate(-50%,5px)}to{opacity:1;transform:translate(-50%)}}@media (width<=1480px){:root{--sidebar-w:236px;--chat-w:365px}.main-scroll{padding-left:21px;padding-right:21px}.system-chip{padding:0 8px;font-size:10.5px}}@media (width<=1280px){:root{--sidebar-w:225px;--chat-w:340px}.topbar-context,.system-chip:first-child,.hero-side{display:none}.lab-grid,.theory-chart-grid{grid-template-columns:1fr}.two-column-groups{grid-template-columns:1fr 1fr}.main-scroll{padding:20px 18px 28px}.hero-copy p{font-size:11.5px}.experiment-hero{margin-bottom:13px}}@media (width<=1040px){:root{--sidebar-w:218px;--chat-w:315px}.brand{min-width:auto}.brand-copy span{display:none}.demo-button{padding:0 11px}.system-chip{display:none}.toolbar{max-width:250px}}@media (width<=900px){:root{--topbar-h:58px}.app-shell{height:100dvh}.topbar{gap:10px;padding:0 12px}.mobile-menu-button{display:grid}.brand{gap:8px}.brand-mark{border-radius:10px;width:33px;height:33px}.brand-copy strong{font-size:16px}.topbar-actions{gap:5px}.demo-button{height:33px;padding:0 10px;font-size:10px}.workbench{height:calc(100% - var(--topbar-h) - 57px);display:block}.sidebar{z-index:60;width:280px;max-width:86vw;transition:transform .23s cubic-bezier(.22,.8,.25,1);position:fixed;top:0;bottom:0;left:0;transform:translate(-105%);box-shadow:20px 0 60px #03111f4d}.sidebar.is-open{transform:translate(0)}.sidebar-mobile-head{color:#acc3d8;border-bottom:1px solid #7da4c721;justify-content:space-between;align-items:center;padding:13px 15px;font-size:11px;font-weight:600;display:flex}.sidebar-mobile-head button{color:#9eb6cb;background:#ffffff0a;border:1px solid #8ab1d326;border-radius:7px;place-items:center;width:28px;height:28px;display:grid}.sidebar-campaign{margin-top:12px}.sidebar-backdrop{z-index:55;-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px);background:#030f1b66;border:0;display:block;position:fixed;inset:0}.main-panel,.chat-panel{width:100%;height:100%}.mobile-lab .chat-panel,.mobile-chat .main-panel{display:none}.mobile-chat .chat-panel{display:flex}.main-scroll{padding:16px 13px 22px}.experiment-hero{align-items:flex-start;margin-bottom:12px}.hero-copy h1{font-size:26px}.hero-copy p{font-size:11px;line-height:1.65}.hero-kicker{font-size:8px}.canvas-surface{padding:12px 11px 10px}.surface-head{align-items:flex-start}.surface-head h2{font-size:14px}.toolbar{gap:4px;max-width:49%}.tool-toggle{height:27px;padding:0 7px;font-size:8.5px}.scene-hint{font-size:7.5px;bottom:7px;right:7px}.scene-scale{font-size:7px;bottom:7px;left:8px}.scene-legend{gap:6px 11px;font-size:8px}.lab-grid,.theory-chart-grid{gap:11px}.control-surface,.readout-surface,.theory-surface{padding:13px}.two-column-groups{grid-template-columns:1fr}.metric-grid{gap:6px}.metric-value{font-size:16px}.insight-band{padding:12px}.insight-tag,.app-footer{display:none}.mobile-tabs{z-index:40;-webkit-backdrop-filter:blur(15px);backdrop-filter:blur(15px);background:#fffffff5;border-top:1px solid #dce7f1;grid-template-columns:1fr 1fr;height:57px;padding:5px 18px 6px;display:grid;position:fixed;bottom:0;left:0;right:0}.mobile-tabs button{color:#879baa;background:0 0;border:0;border-radius:8px;flex-direction:column;justify-content:center;align-items:center;gap:2px;font-size:8.5px;font-weight:600;display:flex;position:relative}.mobile-tabs button.is-active{color:#1c639d;background:#f1f9ff}.tab-pulse{background:#d36b38;border-radius:50%;width:5px;height:5px;position:absolute;top:8px;right:calc(50% - 17px)}.chat-scroll{padding:12px 12px 18px}.chat-head{padding:12px 14px 9px}.chat-panel{border-left:0}.composer-wrap{padding-bottom:max(9px, env(safe-area-inset-bottom))}.toast{bottom:69px}.message{max-width:100%}}@media (width<=530px){.brand-copy span{display:none}.demo-button{gap:0;width:34px;padding:0;font-size:0}.demo-button svg{width:15px;height:15px}.hero-copy p{-webkit-line-clamp:3;-webkit-box-orient:vertical;display:-webkit-box;overflow:hidden}.surface-head{flex-direction:column;gap:8px}.toolbar{justify-content:flex-start;max-width:none}.scene-shell{aspect-ratio:1.44}.scene-hint{display:none}.two-col-sliders{grid-template-columns:1fr;gap:4px}.metric-grid{grid-template-columns:1fr 1fr}.metric-value{font-size:14px}.metric-value-small{font-size:11px}.parameter-group{padding:11px}.chat-intro{padding-top:9px}.chat-intro h2{font-size:15px}.user-bubble{max-width:88%}}@media (prefers-reduced-motion:reduce){*,:before,:after{scroll-behavior:auto!important;transition-duration:.01ms!important;animation-duration:.01ms!important;animation-iteration-count:1!important}}:root{--navy-950:#173b47;--navy-900:#1e4650;--navy-800:#2a5a62;--navy-700:#356a70;--ink:#20373d;--ink-soft:#3f555a;--muted:#718085;--muted-light:#96a09f;--line:#dddcd4;--line-soft:#ebe9e1;--surface:#fffdf8;--surface-soft:#f8f7f2;--page:#f3f1eb;--blue:#246b8d;--blue-deep:#1b5875;--blue-soft:#eef5f7;--cyan:#237e82;--cyan-soft:#edf7f5;--warm:#ad5742;--warm-soft:#fbf3ef;--amber:#94651d;--amber-soft:#fbf7ed;--green:#326b55;--green-soft:#edf5f0;--sidebar-w:232px;--chat-w:372px;--topbar-h:58px;--radius-lg:12px;--radius-md:8px;--shadow-card:0 1px 1px #25323008, 0 6px 20px #25323009;--font-sans:"Segoe UI Variable", "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;--font-math:"STIX Two Text", "Cambria Math", serif}html{font-size:16px}body{color:var(--ink);background:var(--page);font-size:13.5px}button,input,textarea{font-family:inherit}.app-shell{background:var(--page)}.topbar{height:var(--topbar-h);border-bottom:1px solid var(--line);-webkit-backdrop-filter:none;backdrop-filter:none;background:#fbfaf6;gap:12px;padding:0 16px}.sidebar-toggle-button{color:#53676b;background:0 0;border:1px solid #deddd5;border-radius:7px;flex:none;place-items:center;width:33px;height:33px;display:grid}.sidebar-toggle-button:hover{color:var(--ink);background:#f4f2ec;border-color:#c7c7be}.brand{gap:9px;min-width:auto}.brand-mark{color:#f5fbf9;width:30px;height:30px;box-shadow:none;background:#28647a;border-radius:7px}.brand-mark i{display:none}.brand-copy strong{color:#1f363d;letter-spacing:-.025em;font-size:16px;font-weight:700}.brand-copy strong em{color:#1d7084}.brand-copy span{color:#879290;letter-spacing:0;margin-top:1px;font-size:9.5px}.topbar-context{color:#8a9390;gap:8px;margin-left:8px;font-size:11.5px}.topbar-context i{background:#c9c9c0;width:12px;height:1px}.topbar-context strong{color:#4e6265;font-weight:600}.topbar-actions{gap:7px}.chat-toggle-button{color:#5b6c6f;background:0 0;border:1px solid #dbd9d1;border-radius:7px;align-items:center;gap:6px;height:32px;padding:0 10px;font-size:11px;font-weight:600;display:inline-flex}.chat-toggle-button:hover,.chat-toggle-button.is-active{color:#2d5d4c;background:#eef4f1;border-color:#c6d8d2}.demo-button{color:#f9fcfb;height:32px;box-shadow:none;background:#245e73;border:1px solid #245e73;border-radius:7px;padding:0 12px;font-size:11px;font-weight:600}.demo-button:hover:not(:disabled){box-shadow:none;background:#1e5164;transform:none}.system-chip{display:none}@media (width>=901px){.workbench{grid-template-columns:var(--sidebar-w) minmax(0, 1fr) var(--chat-w);height:calc(100% - var(--topbar-h));display:grid}.sidebar-collapsed .workbench{grid-template-columns:minmax(0, 1fr) var(--chat-w)}.sidebar-collapsed .sidebar{display:none}.chat-collapsed .workbench{grid-template-columns:var(--sidebar-w) minmax(0, 1fr)}.chat-collapsed .chat-panel{display:none}.sidebar-collapsed.chat-collapsed .workbench{grid-template-columns:minmax(0,1fr)}}.sidebar{color:var(--ink);border-right:1px solid var(--line);background:#f9f8f3}.sidebar:after,.sidebar-mobile-head{display:none}.sidebar-scroll{padding:17px 12px 14px}.sidebar-course-name{border-bottom:1px solid #e7e4dc;flex-direction:column;gap:2px;padding:0 8px 17px;display:flex}.sidebar-course-name span{color:#8a9591;letter-spacing:.06em;font-size:10px}.sidebar-course-name strong{color:#2b4348;font-size:14px;font-weight:650}.sidebar-section{margin-top:17px}.sidebar-label{color:#939b97;letter-spacing:.08em;text-transform:none;padding:0 8px 7px;font-size:9.5px;font-weight:600}.experiment-nav{gap:2px}.experiment-nav-item{color:#617273;background:0 0;border:1px solid #0000;border-radius:7px;grid-template-columns:none;align-items:center;gap:11px;width:100%;min-height:38px;padding:8px 9px;display:flex}.experiment-nav-item:hover{color:var(--ink);background:#f2f1eb}.experiment-nav-item.is-active{color:#1f5948;box-shadow:none;background:#edf3ef;border-color:#d7e2dc}.experiment-index{color:#9aa3a0;flex:0 0 20px;font-family:Cascadia Mono,Consolas,monospace;font-size:9.5px}.experiment-nav-item.is-active .experiment-index{color:#4d7b69}.experiment-nav-item.is-active .experiment-copy strong{color:#1f5948}.experiment-copy{gap:0}.experiment-copy strong{color:inherit;font-size:12.5px;font-weight:600}.experiment-active-dot,.experiment-icon{display:none}.course-panel{border-top:1px solid #e6e3da;margin-top:21px}.course-panel>summary{color:#53686a;cursor:pointer;align-items:center;gap:7px;padding:11px 8px 9px;font-size:11.5px;font-weight:600;list-style:none;display:flex}.course-panel>summary::-webkit-details-marker{display:none}.course-group>summary::-webkit-details-marker{display:none}.course-panel>summary span{align-items:center;gap:6px;display:flex}.course-panel>summary small{color:#99a19e;margin-left:auto;font-size:9px;font-weight:400}.course-panel-chevron{color:#99a29f;transition:transform .16s}.course-panel[open] .course-panel-chevron{transform:rotate(180deg)}.course-panel-body{padding:0 2px 4px}.course-group{margin-bottom:2px}.course-group>summary{color:#6c7d7e;cursor:pointer;border-radius:5px;align-items:center;gap:6px;padding:7px 8px;font-size:10.5px;font-weight:600;list-style:none;display:flex}.course-group>summary:hover{color:#29494b;background:#f2f1eb}.course-group>summary small{color:#a1a8a5;margin-left:auto;font-size:8.5px;font-weight:400}.course-group>summary svg{color:#9ea5a2;transition:transform .16s}.course-group[open]>summary svg{transform:rotate(180deg)}.chapter-list{border-left:1px solid #e2e0d8;gap:0;margin:0 0 6px 12px;padding:0 0 0 8px}.chapter-item{color:#778685;border-radius:4px;gap:6px;padding:5px 7px;font-size:10px}.chapter-item:hover{color:#2d5558;background:#eef2ef}.chapter-item small{color:#a5aba8;font-size:8px}.chapter-hint{color:#9ba29f;margin:8px 8px 4px;font-size:9px;line-height:1.5}.sidebar-footer{background:#f6f4ee;border-top:1px solid #e4e1d8;padding:12px 14px 13px}.kb-status{gap:8px}.kb-icon{color:#8b9793;background:#fffdf8;border:1px solid #e1ded5;border-radius:6px;width:27px;height:27px}.kb-icon.is-ready{color:#39745b;background:#edf4ef;border-color:#d2e1d9}.kb-status strong{color:#55686a;font-size:10px}.kb-status span{color:#959e9b;font-size:8.5px}.sidebar-footnote{display:none}.sidebar-loading{padding:8px}.skeleton-line{background:#e8e5dd}.main-panel{background:var(--page);min-width:0;overflow:hidden}.main-scroll{scroll-behavior:smooth;height:100%;padding:21px 26px 30px;overflow-y:auto}.experiment-hero{max-width:1320px;margin:0 auto 14px;padding:0 1px;display:block}.hero-index{color:#8d9995;letter-spacing:.06em;margin-bottom:4px;font-size:10px;font-weight:600;display:block}.hero-copy{max-width:790px}.hero-copy h1{color:#203a40;letter-spacing:-.045em;font-size:clamp(27px,2.2vw,33px);font-weight:680}.hero-copy p{color:#778684;max-width:760px;margin-top:6px;font-size:12.5px;line-height:1.65}.hero-kicker,.hero-side,.hero-tags,.hero-link{display:none}.linkage-banner{color:#365d53;max-width:1320px;box-shadow:none;background:#eef5f0;border:1px solid #d4e2da;border-radius:8px;margin:0 auto 12px;padding:8px 11px}.linkage-banner div{gap:1px}.linkage-banner strong{font-size:10.5px;font-weight:650}.linkage-banner span{color:#6f847b;font-size:9.5px}.linkage-banner button{color:#708a7e;width:22px;height:22px}.lab-content{gap:12px;max-width:1320px}.surface{background:var(--surface);box-shadow:var(--shadow-card);border:1px solid #deddd5;border-radius:11px}.canvas-surface{padding:14px 16px 11px}.surface-head{text-align:left;gap:12px;margin-bottom:10px}.surface-head.compact{align-items:flex-start;margin-bottom:9px}.eyebrow,.scene-kicker,.chart-badge,.insight-tag{display:none}.surface-head h2{color:#294247;font-size:15px;font-weight:650}.surface-head h3{color:#324a4e;font-size:13px;font-weight:650}.toolbar{gap:4px}.tool-toggle,.chip-button{color:#647779;background:#fbfaf5;border:1px solid #dfddd5;border-radius:6px;height:28px;padding:0 8px;font-size:10px;font-weight:500}.tool-toggle:hover,.chip-button:hover{color:#2a5d51;background:#f3f8f5;border-color:#c9dbd3}.tool-toggle.is-active{color:#28624f;background:#edf5f0;border-color:#cdded6}.status-pill{color:#687b7a;background:#fbfaf5;border:1px solid #e0ded6;border-radius:6px;height:28px;padding:0 9px;font-size:9.5px;font-weight:500}.status-pill:before{background:#9ca8a4;width:4px;height:4px}.status-pill.is-good{color:#386a55;background:#eff7f2;border-color:#d4e4db}.status-pill.is-good:before{background:#4b8a6d}.status-pill.is-blue{color:#356576;background:#f0f6f7;border-color:#d4e1e5}.status-pill.is-blue:before{background:#4b7e90}.status-pill.is-warm{color:#85602c;background:#fbf7ee;border-color:#e9deca}.status-pill.is-warm:before{background:#b08a4e}.scene-shell{background:#fbfaf5;border:1px solid #e2e0d8;border-radius:8px}.potential-canvas{opacity:.72}.scene-svg{cursor:crosshair}.gauss-interactive,.capacitor-interactive{cursor:default}.scene-svg .draggable-charge,.scene-svg .draggable-probe,.gauss-charge-drag,.probe-hit{cursor:grab}.scene-svg [tabindex="0"]:focus{outline:none}.scene-svg [tabindex="0"]:focus-visible{outline-offset:3px;outline:2px solid #2f7868}.gauss-interactive *{pointer-events:none}.gauss-interactive .gauss-boundary-hit{pointer-events:stroke;cursor:grab}.gauss-interactive .gauss-charge-drag,.gauss-interactive .gauss-charge-drag *{pointer-events:all;cursor:grab}.capacitor-interactive *{pointer-events:none}.capacitor-interactive .capacitor-plate-hit{pointer-events:all;cursor:ew-resize}.scene-svg.is-dragging .draggable-charge,.scene-svg.is-dragging .draggable-probe,.scene-svg.is-dragging .gauss-charge-drag,.scene-svg.is-dragging .gauss-boundary-hit,.scene-svg.is-dragging .capacitor-plate-hit{cursor:grabbing}.draggable-charge.is-active{filter:drop-shadow(0 0 5px #1c695c8c)}.selection-ring{fill:none;stroke:#237f72;stroke-width:1.8px;stroke-dasharray:3 3;pointer-events:none}.gauss-boundary-hit.is-active{stroke:#237f7224}.capacitor-plate.is-active{filter:brightness(1.05)drop-shadow(0 0 4px #225b6d47)}.scene-hint{color:#728381;background:#fffdf8f0;border-color:#e0ded6;padding:4px 7px;font-size:8.5px;bottom:9px;right:11px}.hint-dot{background:#4b8a74;width:4px;height:4px}.scene-scale{color:#87928f;font-size:8px;bottom:9px;left:11px}.scene-legend{color:#768582;gap:6px 15px;padding:9px 2px 0;font-size:9.5px}.scene-legend span{gap:4px}.axis-label{fill:#87948f;font-size:9.5px}.charge-label,.probe-label,.probe-label-strong{font-size:9.5px}.scene-annotation,.dielectric-label,.field-label,.circuit-mark,.circuit-label,.circuit-projector,.flux-label,.flux-unit{font-size:9px}.flux-value{font-size:15px}.scene-scale .scale-bar{border-color:#8b9893}.lab-grid{grid-template-columns:minmax(0,1.1fr) minmax(320px,.9fr);gap:12px}.control-surface,.readout-surface,.theory-surface{padding:14px 15px}.unit-hint{color:#97a09d;font-size:9.5px}.preset-row{gap:5px;margin-bottom:8px}.chip-button{background:0 0}.parameter-groups{gap:0}.parameter-group{background:0 0;border:0;border-top:1px solid #e9e6de;border-radius:0;padding:10px 1px}.parameter-group:first-child{border-top:0;padding-top:2px}.parameter-group.probe-group,.parameter-group.highlight-parameter{background:0 0;border-color:#e9e6de}.parameter-title{gap:8px;margin-bottom:6px}.parameter-title strong{color:#40575b;font-size:10.5px;font-weight:600}.parameter-title span{color:#98a09d;font-size:8.5px}.charge-key{border-radius:6px;width:23px;height:23px;font-size:10.5px}.slider-field{margin-top:7px}.slider-label{color:#6d7d7d;font-size:10px}.slider-value{color:#40575c;font-size:10px}.slider-unit{font-size:8.5px}.two-col-sliders{gap:10px}.slider-hint{font-size:8.5px}.metric-grid{gap:6px}.metric{background:#f8f7f2;border:1px solid #e9e6de;border-radius:7px;gap:2px;padding:9px 10px}.metric-warm,.metric-blue,.metric-good{background:#f8f7f2;border-color:#e9e6de}.metric-label{color:#7d8b88;font-size:9px}.metric-value{color:#2b484e;font-size:19px;font-weight:620}.metric-value-small{font-size:12.5px}.metric-sub{color:#9aa29f;font-size:8.5px}.live-indicator{color:#728880;font-size:8.5px}.live-indicator i{box-shadow:none;background:#4c8a71;animation:none}.formula-card{background:#faf9f4;border:1px solid #e9e6de;border-radius:7px;margin-top:8px;padding:9px 10px}.formula-line{color:#4d6266;font-size:11px}.formula-line>span:last-child:not(.formula){color:#9ca4a0;font-size:8px}.midpoint-check{background:#f8f7f2;border:1px solid #e6e5dd;border-radius:7px;margin-top:8px;padding:9px 10px}.midpoint-head span{color:#5f7374;font-size:9.5px}.midpoint-head strong{color:#53776a;background:0 0;font-size:8.5px}.midpoint-check p{color:#83908d;font-size:8.8px}.insight-band{background:#faf8f2;border:1px solid #e0ddd4;border-radius:9px;max-width:1320px;padding:12px 14px}.insight-icon{color:#527167;background:#f3f6f1;border:1px solid #d8e0d9;border-radius:7px;width:27px;height:27px}.insight-band strong{color:#425a58;font-size:10.5px}.insight-band p{color:#7d8b87;font-size:9.5px}.mode-switch{background:#f5f3ed;border:1px solid #e4e1d8;border-radius:7px;margin-bottom:7px;padding:3px}.mode-switch button{padding:7px 9px}.mode-switch button span{font-size:10px}.mode-switch button small{font-size:8px}.mode-switch button.is-active{background:#fffdf8;border-color:#d8ded8;box-shadow:0 1px 2px #2c38340a}.condition-note{border-radius:7px}.condition-note.is-voltage{color:#4b6b6d;background:#f4f8f6;border-color:#dbe6e3}.condition-note.is-charge{color:#76613c;background:#fbf8f1;border-color:#e9dfcd}.condition-note strong{font-size:9.5px}.condition-note p{font-size:9px}.theory-chart-grid{grid-template-columns:minmax(0,.92fr) minmax(0,1.08fr);gap:12px}.model-note{font-size:9px}.surface-field-strip{background:#faf9f4;border-color:#e7e4dc;font-size:8.5px}.surface-field-strip strong{color:#4a6265;font-size:9px}.inline-warning{color:#806534;background:#fbf7ee;border-color:#e6dcc5}.chart-card{background:var(--surface);box-shadow:var(--shadow-card);border:1px solid #deddd5;border-radius:11px;padding:12px 13px 9px}.chart-head strong{color:#40575b;font-size:10.5px}.chart-head span:not(.chart-badge){color:#96a09c;font-size:8.5px}.chart-tick{fill:#83918e;font-size:8px}.chart-axis-name{fill:#8f9a97;font-size:8px}.chart-direct-label{fill:#51686a;font-size:8.5px}.chart-tooltip-text{font-size:8px}.chart-footnote,.chart-table summary,.chart-table th,.chart-table td{font-size:8.5px}.app-footer{color:#a0a7a3;max-width:1320px;font-size:8px}.chat-panel{border-left:1px solid var(--line);background:#fcfbf7}.chat-head{border-bottom:1px solid #e8e5dd;padding:13px 14px 9px}.chat-title{gap:8px}.chat-mark{color:#386250;width:27px;height:27px;font-family:var(--font-math);background:#edf3ef;border:1px solid #d5dfd9;border-radius:6px;flex:none;place-items:center;font-size:17px;display:grid}.chat-title strong{color:#304a4e;letter-spacing:-.01em;font-size:13px}.chat-title span{color:#8e9995;font-size:8.5px}.chat-head-actions{align-items:center;gap:5px;display:flex}.chat-close-button{color:#8b9692;background:0 0;border:0;border-radius:5px;place-items:center;width:25px;height:25px;display:grid}.chat-close-button:hover{color:#4f6566;background:#f1efe8}.connection-badge{color:#6d7d79;background:0 0;border:0;border-radius:0;gap:5px;padding:2px 0;font-size:8.5px;font-weight:500}.connection-badge i{background:#a1aaa6;border-radius:50%;width:5px;height:5px}.connection-badge.is-online{color:#4e7563;background:0 0;border:0}.connection-badge.is-online i{background:#4e8b6d}.connection-badge.is-offline{color:#8c7a58;background:0 0;border:0}.connection-badge.is-offline i{background:#af9560}.chat-context-bar{color:#9ba39f;background:0 0;border-bottom:1px solid #ece9e2;gap:5px;padding:6px 14px;font-size:8.5px}.context-dot{background:#b7bab4}.access-code-bar{background:#f5f6f1;border-bottom:1px solid #e7e4dc;padding:7px 14px 6px}.access-code-bar.is-unconfigured{background:#fbf7ec}.access-code-row{align-items:center;gap:6px;display:flex}.access-code-row label{color:#637672;flex:none;font-size:8.5px;font-weight:600}.access-code-row input{color:#42585a;background:#fffdf8;border:1px solid #d9ded6;border-radius:4px;outline:none;flex:1;min-width:0;height:25px;padding:0 7px;font-size:9.5px}.access-code-row input:focus{border-color:#9db9ac}.access-code-row input:disabled{color:#9ba39e;background:#f2f0e8}.access-code-row>span{color:#80928a;flex:none;font-size:7.5px}.access-code-bar small{color:#98a19c;margin-top:4px;font-size:7.5px;line-height:1.45;display:block}.chat-scroll{background:#fcfbf7;padding:14px}.chat-intro{text-align:left;align-items:stretch;padding:8px 2px}.intro-kicker{color:#8a9892;letter-spacing:.04em;margin-bottom:4px;font-size:9px;display:block}.chat-intro h2{color:#334c50;letter-spacing:-.025em;margin:0;font-size:17px;font-weight:650}.chat-intro>p{color:#7f8d89;max-width:none;margin:7px 0 13px;font-size:11px;line-height:1.65}.offline-callout{color:#746441;background:#fbf8f0;border:1px solid #e7ddc8;border-radius:7px;margin-bottom:11px;padding:8px 9px}.offline-callout strong{font-size:9.5px}.offline-callout span{color:#8f7e5c;font-size:8.5px}.example-list{border-top:1px solid #e8e5dd;gap:0}.example-label{color:#9aa29e;text-align:left;margin:9px 0 2px;font-size:8.5px}.example-list button{color:#617573;background:0 0;border:0;border-bottom:1px solid #ebe8e0;border-radius:0;gap:6px;padding:9px 2px;font-size:10.5px;line-height:1.5;transform:none}.example-list button:hover{color:#2e5b4e;background:0 0;border-color:#d9e1db;transform:none}.example-index,.example-arrow{display:none}.intro-meta{color:#9ba39f;justify-content:flex-start;margin-top:12px;font-size:8px}.message-list{gap:14px}.message-meta{color:#6e7f7e;gap:6px;font-size:8.5px}.user-bubble{color:#f6fbfa;max-width:87%;box-shadow:none;background:#2d5c6b;border-radius:9px 9px 2px;padding:8px 10px;font-size:11.5px;line-height:1.55}.user-avatar{color:#87918e;background:#faf9f4;border-color:#e1ded6;width:23px;height:23px;font-size:8px}.assistant-avatar{color:#42684f;width:24px;height:24px;font-family:var(--font-math);box-shadow:none;background:#eef3ef;border:1px solid #d8e1d9;border-radius:6px;font-size:14px}.assistant-body{padding-top:1px}.mode-badge{border-radius:3px;padding:1px 4px;font-size:7.5px}.mode-badge.online{color:#3f705b;background:#edf5f0}.mode-badge.offline{color:#826b43;background:#f8f3e8}.mode-badge.warning{color:#8c4a36;background:#fbf1ed}.mode-badge.pending{color:#6d7e7c;background:#f1f1eb}.stopped-label{color:#8e9894;font-size:7.5px;font-weight:400}.markdown-body{color:#43595d;font-size:11.5px;line-height:1.7}.markdown-body h3{color:#304d51;margin:11px 0 4px;font-size:12px}.markdown-body p{margin:5px 0}.markdown-body strong{color:#344f52}.markdown-body blockquote{color:#79633a;background:#fbf7ed;border-left-color:#d9c48e}.markdown-body code{color:#38606a;background:#f1f5f3}.markdown-body .katex-display{margin:7px 0}.message-notice{padding:6px;font-size:8px}.inline-message-error{color:#985f4d;background:#fcf4f0;border:1px solid #edd8cf;border-radius:6px;align-items:flex-start;gap:5px;margin-top:6px;padding:6px 7px;font-size:8.5px;line-height:1.5;display:flex}.thinking-row{color:#6e817d;background:#faf9f4;border-color:#e5e3db;border-radius:6px;padding:7px 8px;font-size:9px}.thinking-lines{display:none}.stream-caret{vertical-align:-2px;background:#6d9583;width:6px;height:14px;margin-left:2px;animation:1s step-end infinite stream-blink;display:inline-block}@keyframes stream-blink{50%{opacity:.18}}.source-list{border-top-color:#e8e5dd;margin-top:8px}.source-heading{color:#72837f;padding:7px 0 4px;font-size:8.5px}.source-item{background:#faf9f4;border-color:#e6e3db;border-radius:5px}.source-item.is-open{background:#f9fbf8;border-color:#d8e3dc}.source-summary{padding:5px 6px}.source-number{color:#758a83;background:#fffdf8;border-color:#e0e2da;border-radius:3px;width:15px;height:15px;font-size:7px}.source-title strong{color:#556d6b;font-size:8.5px}.source-title small{color:#96a09c;font-size:7.5px}.source-relevance{color:#728d82;font-size:7.5px}.source-detail{padding:0 7px 7px 26px}.source-detail p{color:#758985;background:#fffdf9;border-left-color:#dce5de;font-size:8.5px}.source-meta{font-size:7.5px}.no-sources{color:#99a29e;border-color:#e3e0d8}.follow-up-chip{color:#506b64;background:0 0;border:0;border-top:1px solid #e6e3da;border-radius:0;gap:7px;padding:7px 0;font-size:9px}.follow-up-chip:hover{background:0 0;border-style:solid}.follow-up-label{color:#82928c;flex:none;font-size:8px;font-weight:600}.linkage-note{color:#4f6f63;background:#f5f9f5;border-color:#dbe5de;border-radius:5px;margin-top:7px;font-size:8.5px}.linkage-note small{color:#91a09a;font-size:7.5px}.chat-error{color:#8c4e3d;background:#fcf5f1;border-color:#ecd7ce}.chat-error strong{font-size:9.5px}.chat-error span{font-size:8.5px}.composer-wrap{background:#faf9f4;border-top:1px solid #e6e3da;padding:9px 12px 8px}.composer{box-shadow:none;background:#fffdf8;border:1px solid #d9d7ce;border-radius:8px;padding:7px 8px 6px}.composer:focus-within{border-color:#9fbfb2;box-shadow:0 0 0 3px #427d620e}.composer textarea{color:#40575a;min-height:36px;font-size:11.5px}.composer textarea::placeholder{color:#a4aaa6}.composer-hint{font-size:8px}.send-button{width:28px;height:28px;box-shadow:none;background:#2c6473;border-radius:6px}.send-button:hover:not(:disabled){background:#245663}.send-button.stop-button{color:#fdf8f5;background:#9d5a46;gap:4px;width:auto;padding:0 8px;font-size:9px}.send-button.stop-button span{display:inline}.composer-disclaimer{color:#a3aaa6;margin-top:4px;font-size:7.5px}@media (width<=1280px){:root{--sidebar-w:214px;--chat-w:340px}.lab-grid,.theory-chart-grid{grid-template-columns:1fr}.two-column-groups{grid-template-columns:1fr 1fr}}@media (width<=900px){:root{--topbar-h:56px}.topbar{height:var(--topbar-h);background:#fbfaf6;gap:8px;padding:0 11px}.sidebar-toggle-button{width:32px;height:32px}.brand{gap:7px}.brand-mark{width:29px;height:29px}.brand-copy strong{font-size:15px}.brand-copy span,.topbar-context,.chat-toggle-button{display:none}.topbar-actions{margin-left:auto}.demo-button{height:31px;padding:0 10px;font-size:10px}.workbench{height:calc(100% - var(--topbar-h) - 56px);display:block}.sidebar{z-index:60;background:#f9f8f3;width:285px;max-width:85vw;transition:transform .21s;position:fixed;top:0;bottom:0;left:0;transform:translate(-105%);box-shadow:12px 0 32px #26302d29}.sidebar.is-open{transform:translate(0)}.sidebar-mobile-head{color:#5c706f;border-bottom:1px solid #e5e2da;padding:12px 14px;display:flex}.sidebar-mobile-head button{color:#7e8d89;background:0 0;border-color:#dedbd2}.sidebar-scroll{padding-top:14px}.sidebar-backdrop{-webkit-backdrop-filter:blur(1px);backdrop-filter:blur(1px);background:#1f2a2847}.main-panel,.chat-panel{width:100%;height:100%}.main-scroll{padding:14px 13px 22px}.experiment-hero{margin-bottom:11px;display:block}.hero-copy h1{font-size:26px}.hero-copy p{font-size:11.5px;line-height:1.6}.hero-index{font-size:9.5px}.linkage-banner{padding:7px 9px}.canvas-surface{padding:11px 10px 9px}.surface-head,.surface-head.compact{text-align:left;flex-direction:row;align-items:flex-start;gap:8px}.surface-head h2{font-size:14px}.toolbar{max-width:52%}.tool-toggle{height:26px;font-size:8.5px}.scene-hint{display:none}.lab-grid,.theory-chart-grid{grid-template-columns:1fr;gap:10px}.two-column-groups{grid-template-columns:1fr}.control-surface,.readout-surface,.theory-surface{padding:12px}.metric-value{font-size:17px}.insight-band{padding:10px 11px}.chat-panel{border-left:0}.chat-head{padding:12px 13px 8px}.chat-scroll{padding:12px}.chat-intro{padding:4px 1px}.composer-wrap{padding-bottom:max(8px, env(safe-area-inset-bottom))}.mobile-tabs{-webkit-backdrop-filter:none;backdrop-filter:none;background:#fbfaf6;border-top:1px solid #ddd9d0;height:56px;padding:4px 16px 5px}.mobile-tabs button{color:#8a9491;border-radius:6px;font-size:8.5px}.mobile-tabs button.is-active{color:#2f5f50;background:#eef3ef}.tab-pulse{background:#9d5a46}.toast{background:#314b4b;bottom:68px}.sidebar-collapsed .workbench,.chat-collapsed .workbench{display:block}.sidebar-collapsed .sidebar,.chat-collapsed .chat-panel{display:flex}}@media (width<=540px){.brand-copy span{display:none}.demo-button{gap:0;width:31px;padding:0;font-size:0}.demo-button svg{width:14px;height:14px}.hero-copy p{-webkit-line-clamp:3;-webkit-box-orient:vertical;display:-webkit-box;overflow:hidden}.surface-head{flex-direction:column}.toolbar{justify-content:flex-start;max-width:none}.two-col-sliders{grid-template-columns:1fr;gap:2px}.metric-grid{grid-template-columns:1fr 1fr}.metric-value{font-size:15px}.metric-value-small{font-size:11px}.scene-legend{font-size:8.5px}.app-footer{display:none}}@media (prefers-reduced-motion:reduce){.stream-caret{animation:none}}