@font-face{font-display:block;font-family:KaTeX_AMS;font-style:normal;font-weight:400;src:url(./KaTeX_AMS-Regular-BQhdFMY1.woff2)format("woff2"),url(./KaTeX_AMS-Regular-DMm9YOAa.woff)format("woff"),url(./KaTeX_AMS-Regular-DRggAlZN.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Caligraphic;font-style:normal;font-weight:700;src:url(./KaTeX_Caligraphic-Bold-Dq_IR9rO.woff2)format("woff2"),url(./KaTeX_Caligraphic-Bold-BEiXGLvX.woff)format("woff"),url(./KaTeX_Caligraphic-Bold-ATXxdsX0.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Caligraphic;font-style:normal;font-weight:400;src:url(./KaTeX_Caligraphic-Regular-Di6jR-x-.woff2)format("woff2"),url(./KaTeX_Caligraphic-Regular-CTRA-rTL.woff)format("woff"),url(./KaTeX_Caligraphic-Regular-wX97UBjC.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Fraktur;font-style:normal;font-weight:700;src:url(./KaTeX_Fraktur-Bold-CL6g_b3V.woff2)format("woff2"),url(./KaTeX_Fraktur-Bold-BsDP51OF.woff)format("woff"),url(./KaTeX_Fraktur-Bold-BdnERNNW.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Fraktur;font-style:normal;font-weight:400;src:url(./KaTeX_Fraktur-Regular-CTYiF6lA.woff2)format("woff2"),url(./KaTeX_Fraktur-Regular-Dxdc4cR9.woff)format("woff"),url(./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(./KaTeX_Main-Bold-Cx986IdX.woff2)format("woff2"),url(./KaTeX_Main-Bold-Jm3AIy58.woff)format("woff"),url(./KaTeX_Main-Bold-waoOVXN0.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:italic;font-weight:700;src:url(./KaTeX_Main-BoldItalic-DxDJ3AOS.woff2)format("woff2"),url(./KaTeX_Main-BoldItalic-SpSLRI95.woff)format("woff"),url(./KaTeX_Main-BoldItalic-DzxPMmG6.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:italic;font-weight:400;src:url(./KaTeX_Main-Italic-NWA7e6Wa.woff2)format("woff2"),url(./KaTeX_Main-Italic-BMLOBm91.woff)format("woff"),url(./KaTeX_Main-Italic-3WenGoN9.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:normal;font-weight:400;src:url(./KaTeX_Main-Regular-B22Nviop.woff2)format("woff2"),url(./KaTeX_Main-Regular-Dr94JaBh.woff)format("woff"),url(./KaTeX_Main-Regular-ypZvNtVU.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Math;font-style:italic;font-weight:700;src:url(./KaTeX_Math-BoldItalic-CZnvNsCZ.woff2)format("woff2"),url(./KaTeX_Math-BoldItalic-iY-2wyZ7.woff)format("woff"),url(./KaTeX_Math-BoldItalic-B3XSjfu4.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Math;font-style:italic;font-weight:400;src:url(./KaTeX_Math-Italic-t53AETM-.woff2)format("woff2"),url(./KaTeX_Math-Italic-DA0__PXp.woff)format("woff"),url(./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(./KaTeX_SansSerif-Bold-D1sUS0GD.woff2)format("woff2"),url(./KaTeX_SansSerif-Bold-DbIhKOiC.woff)format("woff"),url(./KaTeX_SansSerif-Bold-CFMepnvq.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_SansSerif;font-style:italic;font-weight:400;src:url(./KaTeX_SansSerif-Italic-C3H0VqGB.woff2)format("woff2"),url(./KaTeX_SansSerif-Italic-DN2j7dab.woff)format("woff"),url(./KaTeX_SansSerif-Italic-YYjJ1zSn.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_SansSerif;font-style:normal;font-weight:400;src:url(./KaTeX_SansSerif-Regular-DDBCnlJ7.woff2)format("woff2"),url(./KaTeX_SansSerif-Regular-CS6fqUqJ.woff)format("woff"),url(./KaTeX_SansSerif-Regular-BNo7hRIc.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Script;font-style:normal;font-weight:400;src:url(./KaTeX_Script-Regular-D3wIWfF6.woff2)format("woff2"),url(./KaTeX_Script-Regular-D5yQViql.woff)format("woff"),url(./KaTeX_Script-Regular-C5JkGWo-.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size1;font-style:normal;font-weight:400;src:url(./KaTeX_Size1-Regular-mCD8mA8B.woff2)format("woff2"),url(./KaTeX_Size1-Regular-C195tn64.woff)format("woff"),url(./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(./KaTeX_Size2-Regular-Dy4dx90m.woff2)format("woff2"),url(./KaTeX_Size2-Regular-oD1tc_U0.woff)format("woff"),url(./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(./KaTeX_Size3-Regular-CTq5MqoE.woff)format("woff"),url(./KaTeX_Size3-Regular-DgpXs0kz.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size4;font-style:normal;font-weight:400;src:url(./KaTeX_Size4-Regular-Dl5lxZxV.woff2)format("woff2"),url(./KaTeX_Size4-Regular-BF-4gkZK.woff)format("woff"),url(./KaTeX_Size4-Regular-DWFBv043.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Typewriter;font-style:normal;font-weight:400;src:url(./KaTeX_Typewriter-Regular-CO6r4hn1.woff2)format("woff2"),url(./KaTeX_Typewriter-Regular-C0xS9mPB.woff)format("woff"),url(./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:"0.18.10"}.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{--bg:#0e1117;--surface-1:#161a22;--surface-2:#1e2330;--surface-3:#272d3b;--line:#343c4e;--line-strong:#646e83;--scrim:#0e1117b8;--fg:#eceff4;--fg-muted:#a3acbc;--fg-faint:#6b7385;--axis:#c8d0dc;--grid:#2e3b52;--grid-minor:#1c2432;--m-x:#58c4dd;--m-y:#f0a04b;--m-z:#b18cff;--m-v:#ff79c6;--m-w:#3dd6c3;--plane1:#b8d8f0;--plane2:#e0c08a;--hl:#ffd54a;--hl-tint:#ffd54a38;--focus:#f5f7ff;--correct:#5fd068;--wrong:#ff6b6b;--muted:#8790a2;--lamp-stop:#ff5a4f;--lamp-check:#ffb224;--lamp-go:#2fd47a;--font:"IBM Plex Sans Thai", "Noto Sans Thai", "Sarabun", system-ui, sans-serif;--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark}*,:before,:after{box-sizing:border-box}html,body{background:var(--bg);min-height:100%;color:var(--fg);font-family:var(--font);margin:0;line-height:1.6}button,input{font:inherit;color:inherit}a{color:inherit}:focus-visible{box-shadow:0 0 0 2px var(--bg), 0 0 0 4px var(--focus);outline:none}.sr-only{clip:rect(0 0 0 0);white-space:nowrap;width:1px;height:1px;position:absolute;overflow:hidden}[hidden]{display:none!important}.grow{flex:1}.c-x{color:var(--m-x)}.c-y{color:var(--m-y)}.c-z{color:var(--m-z)}.c-v{color:var(--m-v)}.c-w{color:var(--m-w)}.c-hl{color:var(--hl)}.c-muted{color:var(--muted)}.c-plane1{color:var(--plane1)}.c-plane2{color:var(--plane2)}body:has(.player){overflow:hidden}.app.player{grid-template-rows:48px minmax(0,1fr) auto 56px;display:grid;position:fixed;inset:0}.topbar{padding:0 10px;padding-top:env(safe-area-inset-top);padding-left:max(10px, env(safe-area-inset-left));padding-right:max(10px, env(safe-area-inset-right));align-items:center;gap:6px;min-width:0;transition:opacity .3s;display:flex}.hdr-title{white-space:nowrap;text-overflow:ellipsis;min-width:0;font-size:15px;overflow:hidden}.hdr-title b{font-weight:600}.hdr-title span{color:var(--fg-muted);margin-left:.7em}.ibtn{cursor:pointer;width:44px;height:44px;color:var(--fg);background:0 0;border:0;border-radius:10px;flex:none;place-items:center;padding:0;text-decoration:none;display:grid}.ibtn svg{width:24px;height:24px}.ibtn:hover,.tbtn:hover{background:var(--surface-3)}.ibtn[aria-pressed=false]{color:var(--fg-muted)}.tbtn{border:1px solid var(--line-strong);cursor:pointer;white-space:nowrap;background:0 0;border-radius:10px;flex:none;min-height:44px;padding:0 12px;font-size:14px}.lesson-skip{white-space:normal;min-width:44px;max-width:min(32vw,15rem);min-height:44px;line-height:1.3}.stage-area{min-height:0;position:relative;overflow:hidden}.stage{transform-origin:0 0;position:absolute;top:0;left:0}.slot{height:900px;position:absolute;top:0;left:0}.slot.core{overflow:hidden}.cam{transform-origin:50%;position:absolute;inset:0}.world,.overlay{width:100%;height:100%;position:absolute;inset:0;overflow:visible}.overlay{pointer-events:none}.l-play .handle{pointer-events:all;cursor:grab;outline:none}.tex-layer,.side-abs,.hud,.hud-abs{pointer-events:none;position:absolute;inset:0}.hud-svg,.hud-over{pointer-events:none;width:100%;height:100%;position:absolute;inset:0;overflow:visible}.ns{stroke-width:calc(var(--sw,4) * var(--ik,1) * 1px)}.ik,.inv>.dimw{transform:scale(var(--ik,1))}.side-under,.side-over{pointer-events:none;width:100%;height:100%;position:absolute;inset:0;overflow:visible}.side-grid{z-index:1;grid-template-columns:minmax(0,1fr);align-content:start;justify-items:center;row-gap:24px;padding:40px;display:grid;position:absolute;inset:0}.side-abs{z-index:2}.side-over{z-index:3}.slot.side{overflow:hidden}.side-item{grid-column:1;min-width:0;max-width:100%}.anchor{width:0;height:0;display:flex;position:absolute}.anchor>.dimw{flex:none}.tex{color:var(--fg);white-space:nowrap;line-height:1.25}.tex .katex{font-size:1em}.katex-html [data-k],.katex-html .base>span:not(.strut):not(.mspace){display:inline-block}.s-hero{font-size:80px}.s-main{font-size:56px}.s-side{font-size:44px}.s-label{font-size:36px}.s-tick{font-size:30px}.num{font-variant-numeric:tabular-nums;font-family:KaTeX_Main,Times New Roman,serif}.stage-text{text-align:center;max-width:620px;color:var(--fg);font-size:40px;font-weight:500;line-height:1.6}.stage-title{text-align:center;max-width:620px;color:var(--fg);font-size:64px;font-weight:700;line-height:1.4}.stage .obj{transition:opacity .3s}.stage.asking .obj,.stage.asking .overlay,.stage.asking .hud-over,.stage.asking .side-over,.stage.asking .side-under{opacity:.4}.stage.asking .obj.subj{opacity:1}.mview{flex-direction:column;align-items:center;gap:18px;display:flex}.mbox{place-items:center;gap:8px 30px;padding:8px 26px;display:inline-grid;position:relative}.mcell{text-align:center;font-variant-numeric:tabular-nums;white-space:nowrap;min-width:1.2em;font-family:KaTeX_Main,serif;line-height:1.3}.mlabel{margin-right:10px;font-size:.6em}.mbr{pointer-events:none;width:100%;height:100%;position:absolute;top:0;left:0;overflow:visible}.mops{min-height:1.2em;display:grid}.mops>*{grid-area:1/1;justify-self:center}.mops:empty{display:none}.mrow{align-items:center;gap:.35em;display:flex}.mpin{justify-content:center;align-items:flex-start;width:0;height:0;display:flex;position:absolute}.mpin.up{align-items:flex-end}.mtag{flex:none;font-size:.5em}.mchip{color:var(--hl);border:3px solid var(--hl);white-space:nowrap;border-radius:999px;padding:0 12px;font-size:.62em;position:absolute}.mghost{text-align:center;color:var(--muted);font-family:KaTeX_Main,serif;line-height:1.3;position:absolute}.mflash{background:var(--hl-tint);border-radius:10px;position:absolute}.fbox{width:0;height:0;position:relative}.fsvg{width:1px;height:1px;position:absolute;top:0;left:0;overflow:visible}.pin{width:0;height:0;display:flex;position:absolute}.pin>.pinb{flex:none}.inv>.pinb{transform:scale(var(--ik,1))}.axtitle{color:var(--fg-muted);white-space:nowrap;font-size:28px;line-height:1.3}.axtitle .katex{font-size:1.1em}.mini{background:var(--surface-2);border-radius:16px;flex-direction:column;align-items:center;gap:8px;padding:14px;display:flex}.mini-title{color:var(--fg-muted);white-space:nowrap;font-size:26px}.mini-plot{position:relative}.mini-svg{display:block}.rcpt{--zz:12px;background:var(--surface-2);width:300px;padding:16px 24px calc(var(--zz) + 18px);-webkit-mask:conic-gradient(from -45deg at bottom, #0000, #000 1deg 89deg, #0000 90deg) 50% / calc(2 * var(--zz)) 100%;-webkit-mask:conic-gradient(from -45deg at bottom, #0000, #000 1deg 89deg, #0000 90deg) 50% / calc(2 * var(--zz)) 100%;mask:conic-gradient(from -45deg at bottom, #0000, #000 1deg 89deg, #0000 90deg) 50% / calc(2 * var(--zz)) 100%;border-radius:12px 12px 0 0;gap:10px;display:grid}.rc-no{color:var(--fg-muted);font-size:26px}.rc-item{align-items:center;gap:16px;display:flex}.rc-icon svg{display:block}.rc-qty{font-size:40px}.rc-rule{border-top:2px dashed var(--line-strong);margin-top:4px}.rc-total{color:var(--fg-muted);justify-content:space-between;align-items:baseline;font-size:30px;display:flex}.rc-sum{color:var(--fg);white-space:nowrap;font-size:40px;font-weight:600}.rc-unit{color:var(--fg-muted);font-size:28px;font-weight:400}.iconx svg{display:block}.pill{white-space:nowrap;color:var(--fg-muted);border:2px solid;border-radius:999px;align-items:center;gap:8px;padding:4px 18px;font-size:30px;line-height:1.4;display:inline-flex}.pill-term{border-style:dashed}.pill-stamp{color:var(--hl);border-radius:10px;font-weight:700;transform:rotate(-6deg)}.pill-badge{background:var(--surface-3);color:var(--fg);border-color:#0000}.scard{background:var(--surface-2);backface-visibility:hidden;border-radius:16px;flex-direction:column;align-items:flex-start;gap:10px;padding:22px 28px;display:flex;box-shadow:0 8px 24px #00000059}.scard .cl{white-space:nowrap;font-size:34px;line-height:1.45}.scard .cl.s-side{font-size:44px}.scard .cl.s-label{font-size:36px}.scard .cl.s-main{font-size:56px}.scard .cl.muted{color:var(--fg-muted)}.card-ans{border:3px dashed var(--line-strong);border-radius:12px;align-self:stretch;min-width:220px;height:72px}.dg{justify-items:center;gap:4px 34px;padding:4px 26px;font-size:44px;display:inline-grid;position:relative}.dgc{font-family:KaTeX_Main,serif;line-height:1.3}.meter{flex-direction:column;align-items:center;gap:2px;display:flex}.meter-svg{display:block;overflow:visible}.meter-ro{white-space:nowrap;align-items:baseline;gap:.2em;font-size:40px;display:flex}.tlight{position:relative}.tlight>svg{display:block}.tl-row{align-items:center;display:flex;position:absolute}.tl-lbl{white-space:nowrap;color:var(--fg);font-size:28px}.metro-svg{display:block;overflow:visible}.metro-lbl{fill:var(--fg-muted);font-size:24px;font-family:var(--font)}.uim{background:var(--surface-1);border:2px solid var(--line);border-radius:18px;align-items:center;gap:14px;height:96px;padding:0 22px;display:flex}.uim-btn{width:64px;height:64px;color:var(--fg);border-radius:14px;place-items:center;display:grid}.uim-scrub{flex:1;align-items:center;height:64px;display:flex}.uim-track{background:var(--line-strong);border-radius:4px;width:100%;height:8px;position:relative}.uim-track>i{background:var(--fg);border-radius:4px;width:38%;position:absolute;top:0;bottom:0;left:0}.uim-ask{background:var(--hl);border-radius:50%;width:16px;height:16px;margin:-8px 0 0 -8px;position:absolute;top:50%;left:70%}.uim-thumb{background:var(--fg);border-radius:50%;width:26px;height:26px;margin:-13px 0 0 -13px;position:absolute;top:50%;left:38%}.uim-speed{text-align:center;font-variant-numeric:tabular-nums;min-width:64px;font-size:30px}.tbl-h{color:var(--fg-muted);white-space:nowrap;font-size:30px;font-weight:600}.grp-text{white-space:nowrap;line-height:1.3}.bigplay{background:var(--fg);color:var(--bg);cursor:pointer;z-index:6;border:0;border-radius:999px;align-items:center;gap:10px;padding:14px 26px 14px 18px;font-size:18px;font-weight:600;display:flex;position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);box-shadow:0 12px 32px #00000073}.bigplay svg{width:28px;height:28px}.caption-zone{background:var(--surface-1);min-height:92px;padding:10px max(16px, env(safe-area-inset-right)) 10px max(16px, env(safe-area-inset-left));justify-content:center;align-items:center;display:flex}.caption{text-align:center;-webkit-line-clamp:2;line-clamp:2;-webkit-box-orient:vertical;max-width:42em;margin:0;font-size:clamp(17px,.9rem + .45vw,24px);font-weight:500;line-height:1.65;transition:opacity 75ms linear;display:-webkit-box;overflow:hidden}.caption.swap{opacity:0}.caption .term{white-space:nowrap}.caption .strong{font-weight:600}.caption.has-w .w{opacity:.58;transition:opacity .12s linear}.caption.has-w .w.said{opacity:1}.reduced .caption.has-w .w{transition:none}.no-cc .caption{visibility:hidden}.controls{background:var(--surface-1);border-top:1px solid var(--line);padding:0 max(8px, env(safe-area-inset-right)) env(safe-area-inset-bottom) max(8px, env(safe-area-inset-left));align-items:center;gap:2px;transition:opacity .3s;display:flex}.time{font-variant-numeric:tabular-nums;color:var(--fg-muted);white-space:nowrap;padding:0 8px;font-size:14px}.scrub{cursor:pointer;touch-action:none;border-radius:6px;flex:1;align-items:center;min-width:80px;height:44px;margin:0 10px;display:flex;position:relative}.scrub-track{width:100%;height:4px;transition:height .12s;position:relative}.scrub:hover .scrub-track,.scrub.drag .scrub-track{height:8px}.seg{background:var(--line-strong);border-radius:2px;position:absolute;top:0;bottom:0;overflow:hidden}.seg>i{background:var(--fg);transform-origin:0;position:absolute;inset:0;transform:scaleX(0)}.sectick{background:var(--fg-muted);border-radius:1px;width:2px;margin-left:-1px;position:absolute;top:-7px;bottom:-7px}.askdot{background:var(--hl);width:8px;height:8px;box-shadow:0 0 0 2px var(--surface-1);border-radius:50%;margin:-4px 0 0 -4px;position:absolute;top:50%}.seg.extra{background:repeating-linear-gradient(90deg, var(--line-strong) 0 4px, transparent 4px 7px)}.seg.extra>i{background:var(--fg-muted)}.skip-x .seg.extra{opacity:.45}.xchip{z-index:5;cursor:pointer;border:1px dashed var(--line-strong);background:var(--surface-2);min-height:40px;color:var(--fg-muted);border-radius:999px;padding:0 16px;font-size:14px;position:absolute;bottom:12px;right:12px;box-shadow:0 6px 18px #00000059}.xchip b{color:var(--fg);font-weight:600}.xchip:hover{background:var(--surface-3)}.xbtn[aria-pressed=true]{border-color:var(--hl);color:var(--hl)}.aload{z-index:5;background:var(--surface-2);min-height:32px;color:var(--fg-muted);pointer-events:none;border-radius:999px;align-items:center;gap:8px;padding:0 14px 0 10px;font-size:13px;animation:.2s .3s both aload-in;display:flex;position:absolute;top:12px;left:12px;box-shadow:0 6px 18px #00000059}.aload[hidden]{display:none}.aload i{border:2px solid var(--line-strong);border-top-color:var(--fg);border-radius:50%;width:14px;height:14px;animation:.8s linear infinite aload-spin}.reduced .aload i{border-color:var(--fg-muted);animation:none}@keyframes aload-in{0%{opacity:0}to{opacity:1}}@keyframes aload-spin{to{transform:rotate(360deg)}}.transcript .x{color:var(--fg-muted)}.xtag{border:1px dashed var(--line-strong);border-radius:999px;margin-right:6px;padding:0 8px;font-size:12px;display:inline-block}.fc-core{color:var(--hl)}.fc-dots .dot.core{box-shadow:0 0 0 2px var(--hl)}.thumb{background:var(--fg);width:14px;height:14px;box-shadow:0 0 0 2px var(--surface-1);border-radius:50%;margin:-7px 0 0 -7px;position:absolute;top:50%}.tip{background:var(--surface-2);white-space:nowrap;text-overflow:ellipsis;pointer-events:none;z-index:20;border-radius:8px;max-width:340px;padding:6px 10px;font-size:13px;position:absolute;bottom:46px;overflow:hidden;transform:translate(-50%);box-shadow:0 8px 20px #0006}.speed-wrap{position:relative}.speed{font-variant-numeric:tabular-nums;min-width:60px}.menu{background:var(--surface-2);z-index:30;border-radius:12px;gap:2px;padding:6px;display:grid;position:absolute;bottom:52px;right:0;box-shadow:0 12px 32px #00000073}.menu button{cursor:pointer;font-variant-numeric:tabular-nums;background:0 0;border:0;border-radius:8px;min-width:76px;min-height:44px}.menu button:hover,.menu [aria-checked=true]{background:var(--surface-3)}.menu [aria-checked=true]{font-weight:700}.transcript{background:var(--surface-2);z-index:30;width:min(420px,100vw);padding:8px 16px 24px;position:fixed;top:48px;bottom:148px;right:0;overflow:auto;box-shadow:-12px 0 32px #00000059}.transcript h2{margin:8px 0;font-size:1.05rem}.transcript h3{color:var(--fg-muted);margin:16px 0 6px;font-size:.95rem}.transcript ol{gap:4px;margin:0;padding:0;list-style:none;display:grid}.transcript button{text-align:left;cursor:pointer;background:0 0;border:0;border-radius:8px;width:100%;min-height:44px;padding:8px 10px;line-height:1.6}.transcript button:hover{background:var(--surface-3)}.transcript button.cur{background:var(--surface-3);box-shadow:inset 3px 0 0 var(--focus)}.card-host{z-index:40;pointer-events:none;justify-content:center;align-items:center;padding:16px;display:flex;position:fixed}.card-host>*{pointer-events:auto}.card{background:var(--surface-2);border:2px solid #0000;border-radius:16px;width:100%;max-width:560px;max-height:100%;padding:22px;overflow:auto;box-shadow:0 12px 32px #00000073}.card[data-state=correct]{border-color:var(--correct)}.card[data-state=wrong]{border-color:var(--wrong)}.card-h{color:var(--fg-muted);margin:0 0 6px;font-size:14px;font-weight:600}.card-prompt{margin-bottom:14px;font-size:1.15rem;font-weight:500}.card .katex{font-size:1.1em}.opts{gap:10px;display:grid}.opt{text-align:left;border:1px solid var(--line-strong);cursor:pointer;background:0 0;border-radius:12px;align-items:center;gap:12px;width:100%;min-height:48px;padding:8px 14px;display:flex}.opt:hover{background:var(--surface-3)}.opt.sel{border-color:var(--fg);background:var(--surface-3)}.opt.is-answer{border-color:var(--correct);box-shadow:inset 0 0 0 1px var(--correct)}.opt-l{border:1px solid var(--line-strong);border-radius:50%;flex:none;place-items:center;width:30px;height:30px;font-size:14px;font-weight:600;display:grid}.opt.sel .opt-l{background:var(--fg);color:var(--bg);border-color:var(--fg)}.fb{margin-top:14px}.fb p{margin:4px 0}.fb-line{align-items:center;gap:8px;display:flex}.fb-line.ok{color:var(--correct)}.fb-line.no{color:var(--wrong)}.fb-explain{color:var(--fg-muted)}.card-actions{flex-wrap:wrap;justify-content:flex-end;gap:10px;margin-top:16px;display:flex}.btn{cursor:pointer;border-radius:10px;min-height:44px;padding:0 18px;font-weight:600}.btn.pri{background:var(--fg);color:var(--bg);border:0}.btn.pri:disabled{opacity:.45;cursor:default}.btn.sec{border:1px solid var(--line-strong);color:var(--fg);background:0 0}.btn.sec:hover{background:var(--surface-3)}.ans-row{align-items:center;gap:12px;display:flex}.ans{background:var(--surface-3);border:1px solid var(--line-strong);border-radius:10px;flex:1;min-width:0;min-height:48px;padding:0 12px;font-size:1.1rem}.ans-prev{text-align:center;min-width:72px;font-size:1.15rem}.chips{flex-wrap:wrap;gap:6px;margin-top:8px;display:flex}.chip{border:1px solid var(--line-strong);cursor:pointer;background:0 0;border-radius:10px;min-width:44px;min-height:44px;font-family:KaTeX_Main,serif;font-size:1.1rem}@media (pointer:fine){.chips{display:none}}.steps{counter-reset:st;gap:6px;margin:0;padding:0;list-style:none;display:grid}.step{counter-increment:st;border-left:3px solid #0000;border-radius:8px;padding:8px 12px 8px 44px;position:relative}.step:before{content:counter(st);text-align:center;width:22px;color:var(--fg-muted);font-weight:600;position:absolute;top:8px;left:12px}.step.cur{border-left-color:var(--focus);background:var(--surface-3)}.step.done{color:var(--fg-muted)}.step.done:before{content:"✓";color:var(--correct)}.goal{color:var(--fg-muted);margin:0 0 10px}.play-panel{gap:10px;display:grid}.slider{grid-template-columns:auto 1fr 3em;align-items:center;gap:10px;display:grid}.slider input{accent-color:var(--m-v);min-height:44px}.snap{min-height:44px;color:var(--fg-muted);align-items:center;gap:8px;display:flex}.snap input{width:20px;height:20px;accent-color:var(--fg)}.readout{text-align:center;padding:6px 0;font-size:1.35rem}.toast.ok{color:var(--correct);font-weight:600}.muted{color:var(--fg-muted)}.fc-host{z-index:20;background:var(--scrim);place-items:center;padding:16px;display:grid;position:absolute;inset:0;overflow:auto}.fc-wrap{gap:14px;width:min(640px,100%);display:grid}.fc-head{justify-content:space-between;align-items:center;display:flex}.fc-head h2{margin:0;font-size:1.2rem}.fc-dots{justify-content:center;gap:6px;display:flex}.fc-dots .dot{background:var(--line-strong);border-radius:50%;width:10px;height:10px}.fc-dots .dot.cur{background:var(--fg)}.fc-dots .dot.ok{background:var(--correct)}.fc-card{perspective:1200px;cursor:pointer;border-radius:16px}.fc-inner{min-height:260px;transform-style:preserve-3d;position:relative}.fc-face{backface-visibility:hidden;background:var(--surface-2);border-radius:16px;flex-direction:column;justify-content:center;gap:10px;padding:24px;display:flex;position:absolute;inset:0;box-shadow:0 12px 32px #00000073}.fc-back{transform:rotateY(180deg)}.fc-inner:not(.is-back) .fc-back{pointer-events:none}.reduced .fc-back{transform:none}.fc-face .btn{align-self:flex-start}.fc-text{font-size:1.3rem;font-weight:500}.fc-label,.fc-hint{color:var(--fg-muted);margin:0;font-size:14px}.fc-actions{justify-content:space-between}.fc-done{text-align:center;justify-items:center;gap:12px;display:grid}.app[data-mode=port]{grid-template-rows:44px minmax(0,1fr) auto auto}.app[data-mode=port] .topbar{height:44px}.app[data-mode=port].idle .topbar{opacity:0;pointer-events:none}.app[data-mode=port] .mlong,.app[data-mode=port] .hdr-title span{display:none}.app[data-mode=port] .caption-zone{min-height:0;padding-top:8px;padding-bottom:8px}.app[data-mode=port] .caption{-webkit-line-clamp:3;line-clamp:3;min-height:4.95em}.app[data-mode=port] .controls{flex-wrap:wrap;justify-content:space-between;min-height:52px}.app[data-mode=port] .scrub{flex-basis:100%;order:-1;height:30px;margin:0 6px}.app[data-mode=port] .time{display:none}.app[data-mode=port] .tip{bottom:30px}.app[data-mode=port] .menu{bottom:48px}.app[data-mode=port] .card-host{align-items:flex-end;max-height:60vh;padding:0;inset:auto 0 0}.app[data-mode=port] .card{max-width:none;padding-bottom:calc(22px + env(safe-area-inset-bottom));border-radius:16px 16px 0 0;max-height:60vh}.app[data-mode=port] .transcript{width:100vw;top:44px;bottom:0}.app[data-mode=short]{grid-template-rows:minmax(0,1fr)}.app[data-mode=short] .stage-area{grid-row:1}.app[data-mode=short] .topbar{z-index:10;background:linear-gradient(var(--scrim), transparent);height:48px;position:absolute;top:0;left:0;right:0}.app[data-mode=short] .caption-zone{background:var(--scrim);z-index:9;min-height:0;position:absolute;bottom:56px;left:0;right:0}.app[data-mode=short] .controls{z-index:10;background:var(--scrim);border:0;height:56px;position:absolute;bottom:0;left:0;right:0}.app[data-mode=short].idle .topbar,.app[data-mode=short].idle .controls{opacity:0;pointer-events:none}.app[data-mode=port].has-lesson-skip.idle .topbar,.app[data-mode=short].has-lesson-skip.idle .topbar{opacity:1;pointer-events:auto}.app[data-mode=short].idle .caption-zone{bottom:0}.app[data-mode=short] .transcript{top:0;bottom:0}.app[data-mode=short] .xchip{top:56px;bottom:auto}.app[data-mode=short] .aload{top:56px}.app.carding .bigplay{display:none}@media (prefers-reduced-motion:reduce){.caption,.caption .w,.stage .obj,.topbar,.controls{transition:none}}.index{max-width:920px;padding:max(32px, env(safe-area-inset-top)) 16px 64px;margin:0 auto}.index h1{margin:0 0 4px;font-size:1.8rem;line-height:1.4}.index .sub{color:var(--fg-muted);margin:0 0 28px}.lessons{grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:12px;margin:0;padding:0;list-style:none;display:grid}.lcard{background:var(--surface-2);border:1px solid var(--line);border-radius:16px;min-height:44px;padding:18px;text-decoration:none;display:block}.lcard:hover{background:var(--surface-3)}.lcard .id{color:var(--fg-muted);font-size:13px}.lcard h2{margin:4px 0 14px;font-size:1.15rem;font-weight:600;line-height:1.5}.bar{background:var(--surface-3);border-radius:3px;height:6px;overflow:hidden}.bar i{background:var(--m-x);height:100%;display:block}.meta{color:var(--fg-muted);justify-content:space-between;margin-top:8px;font-size:13px;display:flex}.empty{color:var(--fg-muted)}