@font-face{font-display:block;font-family:KaTeX_AMS;font-style:normal;font-weight:400;src:url(/_astro/KaTeX_AMS-Regular.BQhdFMY1.woff2) format("woff2"),url(/_astro/KaTeX_AMS-Regular.DMm9YOAa.woff) format("woff"),url(/_astro/KaTeX_AMS-Regular.DRggAlZN.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Caligraphic;font-style:normal;font-weight:700;src:url(/_astro/KaTeX_Caligraphic-Bold.Dq_IR9rO.woff2) format("woff2"),url(/_astro/KaTeX_Caligraphic-Bold.BEiXGLvX.woff) format("woff"),url(/_astro/KaTeX_Caligraphic-Bold.ATXxdsX0.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Caligraphic;font-style:normal;font-weight:400;src:url(/_astro/KaTeX_Caligraphic-Regular.Di6jR-x-.woff2) format("woff2"),url(/_astro/KaTeX_Caligraphic-Regular.CTRA-rTL.woff) format("woff"),url(/_astro/KaTeX_Caligraphic-Regular.wX97UBjC.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Fraktur;font-style:normal;font-weight:700;src:url(/_astro/KaTeX_Fraktur-Bold.CL6g_b3V.woff2) format("woff2"),url(/_astro/KaTeX_Fraktur-Bold.BsDP51OF.woff) format("woff"),url(/_astro/KaTeX_Fraktur-Bold.BdnERNNW.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Fraktur;font-style:normal;font-weight:400;src:url(/_astro/KaTeX_Fraktur-Regular.CTYiF6lA.woff2) format("woff2"),url(/_astro/KaTeX_Fraktur-Regular.Dxdc4cR9.woff) format("woff"),url(/_astro/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(/_astro/KaTeX_Main-Bold.Cx986IdX.woff2) format("woff2"),url(/_astro/KaTeX_Main-Bold.Jm3AIy58.woff) format("woff"),url(/_astro/KaTeX_Main-Bold.waoOVXN0.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:italic;font-weight:700;src:url(/_astro/KaTeX_Main-BoldItalic.DxDJ3AOS.woff2) format("woff2"),url(/_astro/KaTeX_Main-BoldItalic.SpSLRI95.woff) format("woff"),url(/_astro/KaTeX_Main-BoldItalic.DzxPMmG6.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:italic;font-weight:400;src:url(/_astro/KaTeX_Main-Italic.NWA7e6Wa.woff2) format("woff2"),url(/_astro/KaTeX_Main-Italic.BMLOBm91.woff) format("woff"),url(/_astro/KaTeX_Main-Italic.3WenGoN9.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:normal;font-weight:400;src:url(/_astro/KaTeX_Main-Regular.B22Nviop.woff2) format("woff2"),url(/_astro/KaTeX_Main-Regular.Dr94JaBh.woff) format("woff"),url(/_astro/KaTeX_Main-Regular.ypZvNtVU.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Math;font-style:italic;font-weight:700;src:url(/_astro/KaTeX_Math-BoldItalic.CZnvNsCZ.woff2) format("woff2"),url(/_astro/KaTeX_Math-BoldItalic.iY-2wyZ7.woff) format("woff"),url(/_astro/KaTeX_Math-BoldItalic.B3XSjfu4.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Math;font-style:italic;font-weight:400;src:url(/_astro/KaTeX_Math-Italic.t53AETM-.woff2) format("woff2"),url(/_astro/KaTeX_Math-Italic.DA0__PXp.woff) format("woff"),url(/_astro/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(/_astro/KaTeX_SansSerif-Bold.D1sUS0GD.woff2) format("woff2"),url(/_astro/KaTeX_SansSerif-Bold.DbIhKOiC.woff) format("woff"),url(/_astro/KaTeX_SansSerif-Bold.CFMepnvq.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_SansSerif;font-style:italic;font-weight:400;src:url(/_astro/KaTeX_SansSerif-Italic.C3H0VqGB.woff2) format("woff2"),url(/_astro/KaTeX_SansSerif-Italic.DN2j7dab.woff) format("woff"),url(/_astro/KaTeX_SansSerif-Italic.YYjJ1zSn.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_SansSerif;font-style:normal;font-weight:400;src:url(/_astro/KaTeX_SansSerif-Regular.DDBCnlJ7.woff2) format("woff2"),url(/_astro/KaTeX_SansSerif-Regular.CS6fqUqJ.woff) format("woff"),url(/_astro/KaTeX_SansSerif-Regular.BNo7hRIc.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Script;font-style:normal;font-weight:400;src:url(/_astro/KaTeX_Script-Regular.D3wIWfF6.woff2) format("woff2"),url(/_astro/KaTeX_Script-Regular.D5yQViql.woff) format("woff"),url(/_astro/KaTeX_Script-Regular.C5JkGWo-.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size1;font-style:normal;font-weight:400;src:url(/_astro/KaTeX_Size1-Regular.mCD8mA8B.woff2) format("woff2"),url(/_astro/KaTeX_Size1-Regular.C195tn64.woff) format("woff"),url(/_astro/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(/_astro/KaTeX_Size2-Regular.Dy4dx90m.woff2) format("woff2"),url(/_astro/KaTeX_Size2-Regular.oD1tc_U0.woff) format("woff"),url(/_astro/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(/_astro/KaTeX_Size3-Regular.CTq5MqoE.woff) format("woff"),url(/_astro/KaTeX_Size3-Regular.DgpXs0kz.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size4;font-style:normal;font-weight:400;src:url(/_astro/KaTeX_Size4-Regular.Dl5lxZxV.woff2) format("woff2"),url(/_astro/KaTeX_Size4-Regular.BF-4gkZK.woff) format("woff"),url(/_astro/KaTeX_Size4-Regular.DWFBv043.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Typewriter;font-style:normal;font-weight:400;src:url(/_astro/KaTeX_Typewriter-Regular.CO6r4hn1.woff2) format("woff2"),url(/_astro/KaTeX_Typewriter-Regular.C0xS9mPB.woff) format("woff"),url(/_astro/KaTeX_Typewriter-Regular.D3Ib7_Hf.ttf) format("truetype")}.katex{font: 1.21em KaTeX_Main,Times New Roman,serif;line-height:1.2;position:relative;text-indent:0;text-rendering:auto}.katex *{-ms-high-contrast-adjust:none!important;border-color:currentColor}.katex .katex-version:after{content:"0.17.0"}.katex .katex-mathml{border:0;-webkit-clip-path:inset(50%);clip-path:inset(50%);height:1px;overflow:hidden;padding:0;position:absolute;width:1px}.katex .katex-html>.newline{display:block}.katex .base{position:relative;white-space:nowrap;width:-webkit-min-content;width:-moz-min-content;width:min-content}.katex .base,.katex .strut{display:inline-block}.katex .textbf{font-weight:700}.katex .textit{font-style:italic}.katex .textrm{font-family:KaTeX_Main}.katex .textsf{font-family:KaTeX_SansSerif}.katex .texttt{font-family:KaTeX_Typewriter}.katex .mathnormal{font-family:KaTeX_Math;font-style:italic}.katex .mathit{font-family:KaTeX_Main;font-style:italic}.katex .mathrm{font-style:normal}.katex .mathbf{font-family:KaTeX_Main;font-weight:700}.katex .boldsymbol{font-family:KaTeX_Math;font-style:italic;font-weight:700}.katex .amsrm,.katex .mathbb,.katex .textbb{font-family:KaTeX_AMS}.katex .mathcal{font-family:KaTeX_Caligraphic}.katex .mathfrak,.katex .textfrak{font-family:KaTeX_Fraktur}.katex .mathboldfrak,.katex .textboldfrak{font-family:KaTeX_Fraktur;font-weight:700}.katex .mathtt{font-family:KaTeX_Typewriter}.katex .mathscr,.katex .textscr{font-family:KaTeX_Script}.katex .mathsf,.katex .textsf{font-family:KaTeX_SansSerif}.katex .mathboldsf,.katex .textboldsf{font-family:KaTeX_SansSerif;font-weight:700}.katex .mathitsf,.katex .mathsfit,.katex .textitsf{font-family:KaTeX_SansSerif;font-style:italic}.katex .mainrm{font-family:KaTeX_Main;font-style:normal}.katex .vlist-t{border-collapse:collapse;display:inline-table;table-layout:fixed}.katex .vlist-r{display:table-row}.katex .vlist{display:table-cell;position:relative;vertical-align:bottom}.katex .vlist>span{display:block;height:0;position:relative}.katex .vlist>span>span{display:inline-block}.katex .vlist>span>.pstrut{overflow:hidden;width:0}.katex .vlist-t2{margin-right:-2px}.katex .vlist-s{display:table-cell;font-size:1px;min-width:2px;vertical-align:bottom;width:2px}.katex .vbox{align-items:baseline;display:inline-flex;flex-direction:column}.katex .hbox{width:100%}.katex .hbox,.katex .thinbox{display:inline-flex;flex-direction:row}.katex .thinbox{max-width:0;width:0}.katex .msupsub{text-align:left}.katex .mfrac>span>span{text-align:center}.katex .mfrac .frac-line{border-bottom-style:solid;display:inline-block;width:100%}.katex .hdashline,.katex .hline,.katex .mfrac .frac-line,.katex .overline .overline-line,.katex .rule,.katex .underline .underline-line{min-height:1px}.katex .mspace{display:inline-block}.katex .smash{display:inline;line-height:0}.katex .clap,.katex .llap,.katex .rlap{position:relative;width:0}.katex .clap>.inner,.katex .llap>.inner,.katex .rlap>.inner{position:absolute}.katex .clap>.fix,.katex .llap>.fix,.katex .rlap>.fix{display:inline-block}.katex .llap>.inner{right:0}.katex .clap>.inner,.katex .rlap>.inner{left:0}.katex .clap>.inner>span{margin-left:-50%;margin-right:50%}.katex .rule{border:0 solid;display:inline-block;position:relative}.katex .hline,.katex .overline .overline-line,.katex .underline .underline-line{border-bottom-style:solid;display:inline-block;width:100%}.katex .hdashline{border-bottom-style:dashed;display:inline-block;width:100%}.katex .sqrt>.root{margin-left:.2777777778em;margin-right:-.5555555556em}.katex .fontsize-ensurer.reset-size1.size1,.katex .sizing.reset-size1.size1{font-size:1em}.katex .fontsize-ensurer.reset-size1.size2,.katex .sizing.reset-size1.size2{font-size:1.2em}.katex .fontsize-ensurer.reset-size1.size3,.katex .sizing.reset-size1.size3{font-size:1.4em}.katex .fontsize-ensurer.reset-size1.size4,.katex .sizing.reset-size1.size4{font-size:1.6em}.katex .fontsize-ensurer.reset-size1.size5,.katex .sizing.reset-size1.size5{font-size:1.8em}.katex .fontsize-ensurer.reset-size1.size6,.katex .sizing.reset-size1.size6{font-size:2em}.katex .fontsize-ensurer.reset-size1.size7,.katex .sizing.reset-size1.size7{font-size:2.4em}.katex .fontsize-ensurer.reset-size1.size8,.katex .sizing.reset-size1.size8{font-size:2.88em}.katex .fontsize-ensurer.reset-size1.size9,.katex .sizing.reset-size1.size9{font-size:3.456em}.katex .fontsize-ensurer.reset-size1.size10,.katex .sizing.reset-size1.size10{font-size:4.148em}.katex .fontsize-ensurer.reset-size1.size11,.katex .sizing.reset-size1.size11{font-size:4.976em}.katex .fontsize-ensurer.reset-size2.size1,.katex .sizing.reset-size2.size1{font-size:.8333333333em}.katex .fontsize-ensurer.reset-size2.size2,.katex .sizing.reset-size2.size2{font-size:1em}.katex .fontsize-ensurer.reset-size2.size3,.katex .sizing.reset-size2.size3{font-size:1.1666666667em}.katex .fontsize-ensurer.reset-size2.size4,.katex .sizing.reset-size2.size4{font-size:1.3333333333em}.katex .fontsize-ensurer.reset-size2.size5,.katex .sizing.reset-size2.size5{font-size:1.5em}.katex .fontsize-ensurer.reset-size2.size6,.katex .sizing.reset-size2.size6{font-size:1.6666666667em}.katex .fontsize-ensurer.reset-size2.size7,.katex .sizing.reset-size2.size7{font-size:2em}.katex .fontsize-ensurer.reset-size2.size8,.katex .sizing.reset-size2.size8{font-size:2.4em}.katex .fontsize-ensurer.reset-size2.size9,.katex .sizing.reset-size2.size9{font-size:2.88em}.katex .fontsize-ensurer.reset-size2.size10,.katex .sizing.reset-size2.size10{font-size:3.4566666667em}.katex .fontsize-ensurer.reset-size2.size11,.katex .sizing.reset-size2.size11{font-size:4.1466666667em}.katex .fontsize-ensurer.reset-size3.size1,.katex .sizing.reset-size3.size1{font-size:.7142857143em}.katex .fontsize-ensurer.reset-size3.size2,.katex .sizing.reset-size3.size2{font-size:.8571428571em}.katex .fontsize-ensurer.reset-size3.size3,.katex .sizing.reset-size3.size3{font-size:1em}.katex .fontsize-ensurer.reset-size3.size4,.katex .sizing.reset-size3.size4{font-size:1.1428571429em}.katex .fontsize-ensurer.reset-size3.size5,.katex .sizing.reset-size3.size5{font-size:1.2857142857em}.katex .fontsize-ensurer.reset-size3.size6,.katex .sizing.reset-size3.size6{font-size:1.4285714286em}.katex .fontsize-ensurer.reset-size3.size7,.katex .sizing.reset-size3.size7{font-size:1.7142857143em}.katex .fontsize-ensurer.reset-size3.size8,.katex .sizing.reset-size3.size8{font-size:2.0571428571em}.katex .fontsize-ensurer.reset-size3.size9,.katex .sizing.reset-size3.size9{font-size:2.4685714286em}.katex .fontsize-ensurer.reset-size3.size10,.katex .sizing.reset-size3.size10{font-size:2.9628571429em}.katex .fontsize-ensurer.reset-size3.size11,.katex .sizing.reset-size3.size11{font-size:3.5542857143em}.katex .fontsize-ensurer.reset-size4.size1,.katex .sizing.reset-size4.size1{font-size:.625em}.katex .fontsize-ensurer.reset-size4.size2,.katex .sizing.reset-size4.size2{font-size:.75em}.katex .fontsize-ensurer.reset-size4.size3,.katex .sizing.reset-size4.size3{font-size:.875em}.katex .fontsize-ensurer.reset-size4.size4,.katex .sizing.reset-size4.size4{font-size:1em}.katex .fontsize-ensurer.reset-size4.size5,.katex .sizing.reset-size4.size5{font-size:1.125em}.katex .fontsize-ensurer.reset-size4.size6,.katex .sizing.reset-size4.size6{font-size:1.25em}.katex .fontsize-ensurer.reset-size4.size7,.katex .sizing.reset-size4.size7{font-size:1.5em}.katex .fontsize-ensurer.reset-size4.size8,.katex .sizing.reset-size4.size8{font-size:1.8em}.katex .fontsize-ensurer.reset-size4.size9,.katex .sizing.reset-size4.size9{font-size:2.16em}.katex .fontsize-ensurer.reset-size4.size10,.katex .sizing.reset-size4.size10{font-size:2.5925em}.katex .fontsize-ensurer.reset-size4.size11,.katex .sizing.reset-size4.size11{font-size:3.11em}.katex .fontsize-ensurer.reset-size5.size1,.katex .sizing.reset-size5.size1{font-size:.5555555556em}.katex .fontsize-ensurer.reset-size5.size2,.katex .sizing.reset-size5.size2{font-size:.6666666667em}.katex .fontsize-ensurer.reset-size5.size3,.katex .sizing.reset-size5.size3{font-size:.7777777778em}.katex .fontsize-ensurer.reset-size5.size4,.katex .sizing.reset-size5.size4{font-size:.8888888889em}.katex .fontsize-ensurer.reset-size5.size5,.katex .sizing.reset-size5.size5{font-size:1em}.katex .fontsize-ensurer.reset-size5.size6,.katex .sizing.reset-size5.size6{font-size:1.1111111111em}.katex .fontsize-ensurer.reset-size5.size7,.katex .sizing.reset-size5.size7{font-size:1.3333333333em}.katex .fontsize-ensurer.reset-size5.size8,.katex .sizing.reset-size5.size8{font-size:1.6em}.katex .fontsize-ensurer.reset-size5.size9,.katex .sizing.reset-size5.size9{font-size:1.92em}.katex .fontsize-ensurer.reset-size5.size10,.katex .sizing.reset-size5.size10{font-size:2.3044444444em}.katex .fontsize-ensurer.reset-size5.size11,.katex .sizing.reset-size5.size11{font-size:2.7644444444em}.katex .fontsize-ensurer.reset-size6.size1,.katex .sizing.reset-size6.size1{font-size:.5em}.katex .fontsize-ensurer.reset-size6.size2,.katex .sizing.reset-size6.size2{font-size:.6em}.katex .fontsize-ensurer.reset-size6.size3,.katex .sizing.reset-size6.size3{font-size:.7em}.katex .fontsize-ensurer.reset-size6.size4,.katex .sizing.reset-size6.size4{font-size:.8em}.katex .fontsize-ensurer.reset-size6.size5,.katex .sizing.reset-size6.size5{font-size:.9em}.katex .fontsize-ensurer.reset-size6.size6,.katex .sizing.reset-size6.size6{font-size:1em}.katex .fontsize-ensurer.reset-size6.size7,.katex .sizing.reset-size6.size7{font-size:1.2em}.katex .fontsize-ensurer.reset-size6.size8,.katex .sizing.reset-size6.size8{font-size:1.44em}.katex .fontsize-ensurer.reset-size6.size9,.katex .sizing.reset-size6.size9{font-size:1.728em}.katex .fontsize-ensurer.reset-size6.size10,.katex .sizing.reset-size6.size10{font-size:2.074em}.katex .fontsize-ensurer.reset-size6.size11,.katex .sizing.reset-size6.size11{font-size:2.488em}.katex .fontsize-ensurer.reset-size7.size1,.katex .sizing.reset-size7.size1{font-size:.4166666667em}.katex .fontsize-ensurer.reset-size7.size2,.katex .sizing.reset-size7.size2{font-size:.5em}.katex .fontsize-ensurer.reset-size7.size3,.katex .sizing.reset-size7.size3{font-size:.5833333333em}.katex .fontsize-ensurer.reset-size7.size4,.katex .sizing.reset-size7.size4{font-size:.6666666667em}.katex .fontsize-ensurer.reset-size7.size5,.katex .sizing.reset-size7.size5{font-size:.75em}.katex .fontsize-ensurer.reset-size7.size6,.katex .sizing.reset-size7.size6{font-size:.8333333333em}.katex .fontsize-ensurer.reset-size7.size7,.katex .sizing.reset-size7.size7{font-size:1em}.katex .fontsize-ensurer.reset-size7.size8,.katex .sizing.reset-size7.size8{font-size:1.2em}.katex .fontsize-ensurer.reset-size7.size9,.katex .sizing.reset-size7.size9{font-size:1.44em}.katex .fontsize-ensurer.reset-size7.size10,.katex .sizing.reset-size7.size10{font-size:1.7283333333em}.katex .fontsize-ensurer.reset-size7.size11,.katex .sizing.reset-size7.size11{font-size:2.0733333333em}.katex .fontsize-ensurer.reset-size8.size1,.katex .sizing.reset-size8.size1{font-size:.3472222222em}.katex .fontsize-ensurer.reset-size8.size2,.katex .sizing.reset-size8.size2{font-size:.4166666667em}.katex .fontsize-ensurer.reset-size8.size3,.katex .sizing.reset-size8.size3{font-size:.4861111111em}.katex .fontsize-ensurer.reset-size8.size4,.katex .sizing.reset-size8.size4{font-size:.5555555556em}.katex .fontsize-ensurer.reset-size8.size5,.katex .sizing.reset-size8.size5{font-size:.625em}.katex .fontsize-ensurer.reset-size8.size6,.katex .sizing.reset-size8.size6{font-size:.6944444444em}.katex .fontsize-ensurer.reset-size8.size7,.katex .sizing.reset-size8.size7{font-size:.8333333333em}.katex .fontsize-ensurer.reset-size8.size8,.katex .sizing.reset-size8.size8{font-size:1em}.katex .fontsize-ensurer.reset-size8.size9,.katex .sizing.reset-size8.size9{font-size:1.2em}.katex .fontsize-ensurer.reset-size8.size10,.katex .sizing.reset-size8.size10{font-size:1.4402777778em}.katex .fontsize-ensurer.reset-size8.size11,.katex .sizing.reset-size8.size11{font-size:1.7277777778em}.katex .fontsize-ensurer.reset-size9.size1,.katex .sizing.reset-size9.size1{font-size:.2893518519em}.katex .fontsize-ensurer.reset-size9.size2,.katex .sizing.reset-size9.size2{font-size:.3472222222em}.katex .fontsize-ensurer.reset-size9.size3,.katex .sizing.reset-size9.size3{font-size:.4050925926em}.katex .fontsize-ensurer.reset-size9.size4,.katex .sizing.reset-size9.size4{font-size:.462962963em}.katex .fontsize-ensurer.reset-size9.size5,.katex .sizing.reset-size9.size5{font-size:.5208333333em}.katex .fontsize-ensurer.reset-size9.size6,.katex .sizing.reset-size9.size6{font-size:.5787037037em}.katex .fontsize-ensurer.reset-size9.size7,.katex .sizing.reset-size9.size7{font-size:.6944444444em}.katex .fontsize-ensurer.reset-size9.size8,.katex .sizing.reset-size9.size8{font-size:.8333333333em}.katex .fontsize-ensurer.reset-size9.size9,.katex .sizing.reset-size9.size9{font-size:1em}.katex .fontsize-ensurer.reset-size9.size10,.katex .sizing.reset-size9.size10{font-size:1.2002314815em}.katex .fontsize-ensurer.reset-size9.size11,.katex .sizing.reset-size9.size11{font-size:1.4398148148em}.katex .fontsize-ensurer.reset-size10.size1,.katex .sizing.reset-size10.size1{font-size:.2410800386em}.katex .fontsize-ensurer.reset-size10.size2,.katex .sizing.reset-size10.size2{font-size:.2892960463em}.katex .fontsize-ensurer.reset-size10.size3,.katex .sizing.reset-size10.size3{font-size:.337512054em}.katex .fontsize-ensurer.reset-size10.size4,.katex .sizing.reset-size10.size4{font-size:.3857280617em}.katex .fontsize-ensurer.reset-size10.size5,.katex .sizing.reset-size10.size5{font-size:.4339440694em}.katex .fontsize-ensurer.reset-size10.size6,.katex .sizing.reset-size10.size6{font-size:.4821600771em}.katex .fontsize-ensurer.reset-size10.size7,.katex .sizing.reset-size10.size7{font-size:.5785920926em}.katex .fontsize-ensurer.reset-size10.size8,.katex .sizing.reset-size10.size8{font-size:.6943105111em}.katex .fontsize-ensurer.reset-size10.size9,.katex .sizing.reset-size10.size9{font-size:.8331726133em}.katex .fontsize-ensurer.reset-size10.size10,.katex .sizing.reset-size10.size10{font-size:1em}.katex .fontsize-ensurer.reset-size10.size11,.katex .sizing.reset-size10.size11{font-size:1.1996142719em}.katex .fontsize-ensurer.reset-size11.size1,.katex .sizing.reset-size11.size1{font-size:.2009646302em}.katex .fontsize-ensurer.reset-size11.size2,.katex .sizing.reset-size11.size2{font-size:.2411575563em}.katex .fontsize-ensurer.reset-size11.size3,.katex .sizing.reset-size11.size3{font-size:.2813504823em}.katex .fontsize-ensurer.reset-size11.size4,.katex .sizing.reset-size11.size4{font-size:.3215434084em}.katex .fontsize-ensurer.reset-size11.size5,.katex .sizing.reset-size11.size5{font-size:.3617363344em}.katex .fontsize-ensurer.reset-size11.size6,.katex .sizing.reset-size11.size6{font-size:.4019292605em}.katex .fontsize-ensurer.reset-size11.size7,.katex .sizing.reset-size11.size7{font-size:.4823151125em}.katex .fontsize-ensurer.reset-size11.size8,.katex .sizing.reset-size11.size8{font-size:.578778135em}.katex .fontsize-ensurer.reset-size11.size9,.katex .sizing.reset-size11.size9{font-size:.6945337621em}.katex .fontsize-ensurer.reset-size11.size10,.katex .sizing.reset-size11.size10{font-size:.8336012862em}.katex .fontsize-ensurer.reset-size11.size11,.katex .sizing.reset-size11.size11{font-size:1em}.katex .delimsizing.size1{font-family:KaTeX_Size1}.katex .delimsizing.size2{font-family:KaTeX_Size2}.katex .delimsizing.size3{font-family:KaTeX_Size3}.katex .delimsizing.size4{font-family:KaTeX_Size4}.katex .delimsizing.mult .delim-size1>span{font-family:KaTeX_Size1}.katex .delimsizing.mult .delim-size4>span{font-family:KaTeX_Size4}.katex .nulldelimiter{display:inline-block;width:.12em}.katex .delimcenter,.katex .op-symbol{position:relative}.katex .op-symbol.small-op{font-family:KaTeX_Size1}.katex .op-symbol.large-op{font-family:KaTeX_Size2}.katex .accent>.vlist-t,.katex .op-limits>.vlist-t{text-align:center}.katex .accent .accent-body{position:relative}.katex .accent .accent-body:not(.accent-full){width:0}.katex .overlay{display:block}.katex .mtable .vertical-separator{display:inline-block;min-width:1px}.katex .mtable .arraycolsep{display:inline-block}.katex .mtable .col-align-c>.vlist-t{text-align:center}.katex .mtable .col-align-l>.vlist-t{text-align:left}.katex .mtable .col-align-r>.vlist-t{text-align:right}.katex .svg-align{text-align:left}.katex svg{fill:currentColor;stroke:currentColor;display:block;height:inherit;position:absolute;width:100%}.katex svg path{stroke:none}.katex svg{fill-rule:nonzero;fill-opacity:1;stroke-width:1;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1}.katex img{border-style:none;max-height:none;max-width:none;min-height:0;min-width:0}.katex .stretchy{display:block;overflow:hidden;position:relative;width:100%}.katex .stretchy:after,.katex .stretchy:before{content:""}.katex .hide-tail{overflow:hidden;position:relative;width:100%}.katex .halfarrow-left{left:0;overflow:hidden;position:absolute;width:50.2%}.katex .halfarrow-right{overflow:hidden;position:absolute;right:0;width:50.2%}.katex .brace-left{left:0;overflow:hidden;position:absolute;width:25.1%}.katex .brace-center{left:25%;overflow:hidden;position:absolute;width:50%}.katex .brace-right{overflow:hidden;position:absolute;right:0;width:25.1%}.katex .x-arrow-pad{padding:0 .5em}.katex .cd-arrow-pad{padding:0 .55556em 0 .27778em}.katex .mover,.katex .munder,.katex .x-arrow{text-align:center}.katex .boxpad{padding:0 .3em}.katex .fbox,.katex .fcolorbox{border:.04em solid;box-sizing:border-box}.katex .cancel-pad{padding:0 .2em}.katex .cancel-lap{margin-left:-.2em;margin-right:-.2em}.katex .sout{border-bottom-style:solid;border-bottom-width:.08em}.katex .angl{border-right:.049em solid;border-top:.049em solid;box-sizing:border-box;margin-right:.03889em}.katex .anglpad{padding:0 .03889em}.katex .eqn-num:before{content:"(" counter(katexEqnNo) ")";counter-increment:katexEqnNo}.katex .mml-eqn-num:before{content:"(" counter(mmlEqnNo) ")";counter-increment:mmlEqnNo}.katex .mtr-glue{width:50%}.katex .cd-vert-arrow{display:inline-block;position:relative}.katex .cd-label-left{display:inline-block;position:absolute;right:calc(50% + .3em);text-align:left}.katex .cd-label-right{display:inline-block;left:calc(50% + .3em);position:absolute;text-align:right}.katex-display{display:block;margin:1em 0;text-align:center}.katex-display>.katex{display:block;text-align:center;white-space:nowrap}.katex-display>.katex>.katex-html{display:block;position:relative}.katex-display>.katex>.katex-html>.tag{position:absolute;right:0}.katex-display.leqno>.katex>.katex-html>.tag{left:0;right:auto}.katex-display.fleqn>.katex{padding-left:2em;text-align:left}body{counter-reset:katexEqnNo mmlEqnNo}:root{--font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;--mono: ui-monospace, "SF Mono", "JetBrains Mono", Menlo, Consolas, monospace;--bg:#0b1120;--bg-grad:#0e1626;--text:#94a3b8;--text-strong:#e2e8f0;--heading:#f1f5f9;--muted:#64748b;--line:rgba(148,163,184,.14);--accent:#5eead4;--accent-ink:#0b1120;--tag-bg:rgba(94,234,212,.1);--tag-fg:#5eead4;--card-hover:rgba(148,163,184,.045);--card-shadow:0 8px 30px -12px rgba(2,6,23,.7);--spot:rgba(94,234,212,.06)}@media(prefers-color-scheme:light){:root{--bg:#f7f8fa;--bg-grad:#eef1f5;--text:#4a5567;--text-strong:#1e293b;--heading:#0f172a;--muted:#7c8798;--line:rgba(15,23,42,.1);--accent:#0d9488;--accent-ink:#ffffff;--tag-bg:rgba(13,148,136,.1);--tag-fg:#0f766e;--card-hover:rgba(15,23,42,.028);--card-shadow:0 10px 30px -16px rgba(15,23,42,.22);--spot:rgba(13,148,136,.05)}}:root[data-theme=dark]{--bg:#0b1120;--bg-grad:#0e1626;--text:#94a3b8;--text-strong:#e2e8f0;--heading:#f1f5f9;--muted:#64748b;--line:rgba(148,163,184,.14);--accent:#5eead4;--accent-ink:#0b1120;--tag-bg:rgba(94,234,212,.1);--tag-fg:#5eead4;--card-hover:rgba(148,163,184,.045);--card-shadow:0 8px 30px -12px rgba(2,6,23,.7);--spot:rgba(94,234,212,.06)}:root[data-theme=light]{--bg:#f7f8fa;--bg-grad:#eef1f5;--text:#4a5567;--text-strong:#1e293b;--heading:#0f172a;--muted:#7c8798;--line:rgba(15,23,42,.1);--accent:#0d9488;--accent-ink:#fff;--tag-bg:rgba(13,148,136,.1);--tag-fg:#0f766e;--card-hover:rgba(15,23,42,.028);--card-shadow:0 10px 30px -16px rgba(15,23,42,.22);--spot:rgba(13,148,136,.05)}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--text);font-family:var(--font);font-size:16px;line-height:1.6;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;display:flex;flex-direction:column;min-height:100vh}body>main{flex:1 0 auto}body:before{content:"";position:fixed;inset:0;z-index:-2;background:radial-gradient(1200px 700px at 80% -10%,var(--bg-grad),transparent 60%),var(--bg)}#spot{position:fixed;inset:0;z-index:-1;pointer-events:none;transition:background .18s ease;background:radial-gradient(600px at var(--mx,-500px) var(--my,-500px),var(--spot),transparent 80%)}a{color:inherit;text-decoration:none}::selection{background:var(--accent);color:var(--accent-ink)}.controls{position:fixed;top:20px;right:clamp(22px,5vw,50px);z-index:30;display:flex;gap:10px;align-items:center}.ctrl{height:38px;border-radius:999px;border:1px solid var(--line);background:transparent;color:var(--muted);cursor:pointer;display:grid;place-items:center;transition:.2s;font-family:var(--font)}.ctrl:hover{color:var(--accent);border-color:var(--accent)}.ctrl:focus-visible{outline:2px solid var(--accent);outline-offset:2px}.theme{width:38px}.theme svg{width:17px;height:17px}.theme .moon{display:none}:root[data-theme=dark] .theme .sun{display:none}:root[data-theme=dark] .theme .moon{display:block}@media(prefers-color-scheme:dark){.theme .sun{display:none}.theme .moon{display:block}}:root[data-theme=light] .theme .sun{display:block}:root[data-theme=light] .theme .moon{display:none}:root.reading .controls{opacity:0;visibility:hidden;transition:opacity .2s,visibility .2s}.to-top{position:fixed;right:clamp(22px,5vw,50px);bottom:28px;z-index:30;width:44px;height:44px;border-radius:50%;border:1px solid var(--line);background:var(--bg);color:var(--muted);display:grid;place-items:center;cursor:pointer;box-shadow:var(--card-shadow);opacity:0;visibility:hidden;transform:translateY(12px);transition:opacity .25s,transform .25s,visibility .25s,color .2s,border-color .2s}.to-top.show{opacity:1;visibility:visible;transform:none}.to-top:hover{color:var(--accent);border-color:var(--accent)}.to-top:focus-visible{outline:2px solid var(--accent);outline-offset:2px}.to-top svg{width:19px;height:19px}@media(prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}html{scroll-behavior:auto}#spot{display:none}}.blog-shell{max-width:1400px;margin:0 auto;padding:clamp(48px,6vh,80px) clamp(22px,5vw,40px) 96px}.back{display:inline-flex;align-items:center;gap:8px;font-family:inherit;font-size:.9rem;letter-spacing:0;text-transform:none;font-weight:550;color:var(--muted);transition:.2s;margin-bottom:26px}.back:hover{color:var(--accent);gap:12px}.back svg{width:15px;height:15px}.blog-head{margin-bottom:22px}.blog-head .eyebrow{font-family:var(--mono);font-size:.72rem;letter-spacing:.16em;text-transform:uppercase;color:var(--accent);font-weight:600}.blog-head h1{font-size:clamp(1.7rem,3.4vw,2.2rem);letter-spacing:-.03em;font-weight:800;color:var(--heading);margin:.3rem 0 0;line-height:1.1}.blog-head p{color:var(--muted);margin:.55rem 0 0;max-width:none}.article-cover{display:block;width:100%;max-width:1200px;height:auto;aspect-ratio:16/9;object-fit:cover;border:1px solid var(--line);border-radius:16px;margin:4px auto 40px}.post-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;margin-top:8px}.post-card{display:block;border:1px solid var(--line);border-radius:16px;overflow:hidden;background:var(--card-hover);transition:transform .2s,border-color .2s,box-shadow .2s;position:relative}.post-card:hover{transform:translateY(-3px);border-color:var(--accent);box-shadow:var(--card-shadow)}.pc-cover{display:block;width:100%;height:auto;aspect-ratio:16/9;object-fit:cover;border-bottom:1px solid var(--line)}.pc-body{padding:22px 24px}.post-card:hover .pc-title{color:var(--accent)}.post-card:hover .pc-title svg{transform:translate(3px,-3px)}.pc-meta{display:flex;align-items:center;gap:9px;font-family:var(--mono);font-size:.66rem;letter-spacing:.05em;text-transform:uppercase;color:var(--muted);margin-bottom:14px}.pc-meta .dot{width:3px;height:3px;border-radius:50%;background:var(--muted)}.pc-title{font-size:1.3rem;font-weight:700;letter-spacing:-.02em;color:var(--heading);margin:0;line-height:1.25;display:inline-flex;align-items:baseline;gap:8px;transition:color .2s}.pc-title svg{width:15px;height:15px;transition:transform .2s;flex:none;transform:translateY(2px)}.pc-desc{color:var(--muted);margin:.7rem 0 0;font-size:.95rem;line-height:1.6}.pc-tags{display:flex;flex-wrap:wrap;gap:7px;margin-top:18px}.pc-tags span{font-family:var(--mono);font-size:.66rem;color:var(--tag-fg);background:var(--tag-bg);padding:3px 10px;border-radius:999px}.post-card.featured{grid-column:1/-1}.post-card.featured .pc-body{padding:30px 32px}.post-card.featured .pc-title{font-size:1.6rem}.post-card.featured .pc-desc{font-size:1.03rem;max-width:none}@media(max-width:720px){.post-grid{grid-template-columns:1fr;gap:16px}.post-card .pc-body,.post-card.featured .pc-body{padding:20px}.post-card.featured .pc-title{font-size:1.35rem}}.read-bar{position:fixed;top:0;left:0;right:0;z-index:25;background:color-mix(in srgb,var(--bg) 82%,transparent);-webkit-backdrop-filter:saturate(150%) blur(12px);backdrop-filter:saturate(150%) blur(12px);border-bottom:1px solid var(--line);transform:translateY(-102%);transition:transform .3s ease}.read-bar.show{transform:none}.read-bar-inner{max-width:1080px;margin:0 auto;padding:10px clamp(22px,5vw,40px);display:flex;align-items:center;gap:16px}.read-bar-home{flex:none;width:34px;height:34px;display:grid;place-items:center;color:var(--muted);border:1px solid var(--line);border-radius:9px;transition:color .18s,border-color .18s,background .18s}.read-bar-home:hover{color:var(--accent);border-color:var(--accent);background:var(--tag-bg)}.read-bar-home svg{width:17px;height:17px}.read-bar-main{flex:1;min-width:0;display:flex;flex-direction:column;gap:1px}.read-bar-title{max-width:100%;font-weight:650;color:var(--heading);font-size:.95rem;letter-spacing:-.01em;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.read-bar-meta{font-family:var(--mono);font-size:.66rem;letter-spacing:.03em;color:var(--muted)}.read-bar-tags{flex:none;display:flex;gap:7px}.read-bar-theme{flex:none;width:34px;height:34px}.read-bar-theme svg{width:16px;height:16px}.read-bar-tags span{font-family:var(--mono);font-size:.66rem;color:var(--tag-fg);background:var(--tag-bg);padding:3px 9px;border-radius:999px;white-space:nowrap}.read-progress{position:absolute;left:0;bottom:-1px;height:2px;width:0;background:var(--accent)}@media(max-width:640px){.read-bar-tags{display:none}}.article-wrap{max-width:1400px;margin:0 auto;padding:clamp(44px,5vh,68px) clamp(22px,5vw,40px) 96px}.article-grid{display:grid;grid-template-columns:minmax(0,820px);justify-content:center;gap:clamp(32px,4vw,64px);align-items:start}.article-grid.has-toc{grid-template-columns:220px minmax(0,820px);gap:clamp(32px,4vw,70px)}.article-content{min-width:0;width:100%;max-width:820px}.toc{position:sticky;top:40px;max-height:calc(100vh - 80px);overflow-y:auto}.toc h4{font-family:var(--mono);font-size:.68rem;letter-spacing:.16em;text-transform:uppercase;color:var(--muted);margin:0 0 14px;font-weight:700}.toc ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:2px;border-left:1px solid var(--line)}.toc a{display:block;padding:6px 0 6px 16px;margin-left:-1px;border-left:2px solid transparent;color:var(--muted);font-size:.86rem;line-height:1.4;transition:color .18s,border-color .18s}.toc a:hover{color:var(--text-strong)}.toc a.d3{padding-left:30px;font-size:.8rem}.toc a.active{color:var(--accent);border-color:var(--accent);font-weight:600}@media(max-width:900px){.article-grid,.article-grid.has-toc{grid-template-columns:1fr;gap:0}.toc{display:none}}.article-header{margin-bottom:40px;padding-bottom:32px;border-bottom:1px solid var(--line)}.article-header .meta{font-family:var(--mono);font-size:.72rem;letter-spacing:.06em;text-transform:uppercase;color:var(--muted)}.article-header h1{font-size:clamp(2rem,5vw,2.9rem);letter-spacing:-.03em;font-weight:800;color:var(--heading);margin:.7rem 0 0;line-height:1.08;text-wrap:balance}.article-header .lede{color:var(--text);font-size:1.1rem;margin:1rem 0 0;max-width:none}.attribution{display:flex;align-items:center;flex-wrap:wrap;gap:18px 28px;margin-top:24px}.byline{display:flex;align-items:center;gap:13px}.byline-avatar{width:46px;height:46px;border-radius:50%;object-fit:cover;border:1px solid var(--line)}.byline-mono{display:grid;place-items:center;font-family:var(--mono);font-weight:700;font-size:1.15rem;color:var(--accent-ink);background:var(--accent);border:0}.byline-info{display:flex;flex-direction:column;gap:1px}.byline-name{font-weight:650;color:var(--text-strong);font-size:.95rem}.byline-role{font-family:var(--mono);font-size:.72rem;color:var(--muted);letter-spacing:.02em}.reviewer-byline{padding-left:28px;border-left:1px solid var(--line)}@media(max-width:560px){.attribution{align-items:flex-start;flex-direction:column;gap:14px}.reviewer-byline{padding-left:0;border-left:0}}.article-header .tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:20px}.article-header .tags span{font-family:var(--mono);font-size:.7rem;color:var(--tag-fg);background:var(--tag-bg);padding:4px 11px;border-radius:999px}.prose{color:var(--text);font-size:1.06rem;line-height:1.75}.prose h2{color:var(--heading);font-size:1.55rem;letter-spacing:-.02em;margin:2.6rem 0 .9rem;font-weight:750;text-wrap:balance}.prose h3{color:var(--heading);font-size:1.2rem;letter-spacing:-.01em;margin:2rem 0 .7rem;font-weight:700}.prose p{margin:0 0 1.15rem}.prose strong{color:var(--text-strong);font-weight:650}.prose a{color:var(--accent);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px}.prose ul,.prose ol{margin:0 0 1.15rem;padding-left:1.3rem}.prose li{margin:.4rem 0}.prose li::marker{color:var(--accent)}.prose blockquote{margin:1.4rem 0;padding:.4rem 0 .4rem 20px;border-left:2px solid var(--accent);color:var(--text-strong);font-style:italic}.prose hr{border:0;border-top:1px solid var(--line);margin:2.4rem 0}.prose img,.prose svg{max-width:100%;height:auto;display:block;margin:1.6rem auto}.prose figure{margin:1.8rem 0}.prose figcaption{font-family:var(--mono);font-size:.72rem;color:var(--muted);text-align:center;margin-top:10px;letter-spacing:.02em}.prose :not(pre)>code{font-family:var(--mono);font-size:.86em;background:var(--tag-bg);color:var(--tag-fg);padding:2px 6px;border-radius:5px}.prose pre{border:1px solid var(--line);border-radius:12px;padding:18px 20px;overflow-x:auto;margin:1.5rem 0;font-size:.86rem;line-height:1.6}.prose pre code{font-family:var(--mono);background:none;padding:0}.prose .katex{color:var(--text-strong)}.prose .katex-display{max-width:100%;margin:1.5rem 0;padding:18px 20px;overflow-x:auto;overflow-y:hidden;border:1px solid var(--line);border-radius:12px;background:var(--card-hover);font-size:1.02em;scrollbar-width:thin}.prose .katex-display>.katex{display:inline-block;min-width:max-content;text-align:left}@media(max-width:640px){.prose .katex-display{padding:15px 16px;font-size:.9em}}.prose .token-tool-slot{margin:1.8rem 0}.prose token-counter-tool{display:block}.token-tool{border:1px solid var(--line);border-radius:16px;padding:20px;background:var(--card-hover)}.token-tool-head{display:flex;align-items:flex-start;justify-content:space-between;gap:20px;margin-bottom:16px}.token-tool-head>div{display:flex;flex-direction:column;gap:3px}.token-tool-head strong{color:var(--heading);font-size:1rem}.token-tool-head>div span,.token-tool-caveat{color:var(--muted);font-size:.78rem}.token-tool-encoding{display:flex;align-items:center;gap:8px;flex:none}.token-tool-encoding>span,.token-tool-output-head{font-family:var(--mono);font-size:.68rem;letter-spacing:.06em;text-transform:uppercase;color:var(--muted)}.token-tool select,.token-tool textarea,.token-tool button{font:inherit;color:var(--text-strong)}.token-tool select{min-width:156px;border:1px solid var(--line);border-radius:8px;padding:7px 30px 7px 10px;background:var(--bg);cursor:pointer}.token-tool select:disabled,.token-tool textarea:disabled{cursor:wait;opacity:.65}.token-tool-input{display:block}.token-tool textarea{display:block;width:100%;resize:vertical;min-height:142px;border:1px solid var(--line);border-radius:12px;padding:14px 16px;background:var(--bg);line-height:1.55;outline:none}.token-tool textarea:focus,.token-tool select:focus{border-color:var(--accent);box-shadow:0 0 0 3px color-mix(in srgb,var(--accent) 16%,transparent)}.token-tool-actions{display:flex;align-items:center;gap:8px;margin-top:10px}.token-tool button{border:1px solid var(--line);border-radius:8px;padding:6px 10px;background:var(--bg);font-family:var(--mono);font-size:.7rem;cursor:pointer;transition:border-color .18s,color .18s}.token-tool button:hover{border-color:var(--accent);color:var(--accent)}.token-tool-status{margin-left:auto;color:var(--muted);font-family:var(--mono);font-size:.68rem;text-align:right}.token-tool-stats{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px;margin-top:16px}.token-tool-stats>div{display:flex;align-items:baseline;gap:7px;border:1px solid var(--line);border-radius:10px;padding:11px 13px;background:var(--bg)}.token-tool-stats strong{font-family:var(--mono);font-size:1.25rem;color:var(--accent)}.token-tool-stats span{color:var(--muted);font-size:.76rem}.token-tool-output{margin-top:10px;border:1px solid var(--line);border-radius:10px;background:var(--bg);overflow:hidden}.token-tool-output-head{display:flex;justify-content:space-between;gap:16px;padding:8px 12px;border-bottom:1px solid var(--line)}.token-tool-output output{display:block;max-height:112px;overflow:auto;padding:12px;font-family:var(--mono);font-size:.74rem;line-height:1.65;color:var(--text);overflow-wrap:anywhere}.token-tool-caveat{margin:12px 0 0!important;line-height:1.55}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}@media(max-width:640px){.token-tool{padding:16px}.token-tool-head{flex-direction:column;gap:12px}.token-tool-encoding{width:100%;justify-content:space-between}.token-tool select{min-width:0;width:180px;max-width:62%}.token-tool-actions{flex-wrap:wrap}.token-tool-status{width:100%;margin:3px 0 0;text-align:left}.token-tool-stats{grid-template-columns:1fr}}.prose .code-block{margin:1.5rem 0;border:1px solid var(--line);border-radius:12px;overflow:hidden}.prose .code-block pre{margin:0;border:0;border-radius:0}.code-head{display:flex;align-items:center;justify-content:space-between;padding:8px 12px 8px 16px;background:#2b3138;border-bottom:1px solid rgba(255,255,255,.07)}.code-lang{font-family:var(--mono);font-size:.68rem;letter-spacing:.1em;text-transform:uppercase;color:#8b949e}.code-copy{display:inline-flex;align-items:center;gap:6px;font-family:var(--mono);font-size:.7rem;color:#8b949e;background:transparent;border:1px solid rgba(255,255,255,.14);border-radius:7px;padding:4px 9px;cursor:pointer;transition:color .18s,border-color .18s}.code-copy:hover,.code-copy.done{color:var(--accent);border-color:var(--accent)}.code-copy svg{width:13px;height:13px;margin:0;flex:none}.prose table{display:table;width:100%;max-width:100%;border-collapse:separate;border-spacing:0;margin:1.7rem 0;font-size:.92rem;border:1px solid var(--line);border-radius:12px;font-variant-numeric:tabular-nums}.prose thead th{text-align:left;font-family:var(--mono);font-size:.68rem;letter-spacing:.06em;text-transform:uppercase;color:var(--muted);padding:12px 16px;white-space:nowrap;background:var(--card-hover);border-bottom:1px solid var(--line)}.prose tbody td{padding:11px 16px;border-bottom:1px solid var(--line);color:var(--text);vertical-align:top}.prose tbody tr:last-child td{border-bottom:0}.prose tbody tr:hover td{background:var(--card-hover)}.prose table code{white-space:nowrap}@media(max-width:640px){.prose table{display:block;overflow-x:auto}}.prose pre.mermaid{background:var(--card-hover);border:1px solid var(--line);border-radius:14px;position:relative;min-height:180px;padding:24px;margin:1.8rem 0;text-align:center;overflow-x:auto;line-height:normal;color:inherit}.prose pre.mermaid[data-mermaid-state=loading]{display:grid;place-items:center;color:transparent;cursor:progress}.prose pre.mermaid[data-mermaid-state=loading]:before{content:"Đang vẽ sơ đồ…";position:absolute;inset:0;display:grid;place-items:center;color:var(--muted);font-family:var(--mono);font-size:.78rem;letter-spacing:.04em;animation:mermaid-pulse 1.4s ease-in-out infinite}.prose pre.mermaid[data-mermaid-state=ready]{min-height:0;color:inherit;cursor:zoom-in}.prose pre.mermaid[data-mermaid-state=error]{min-height:0;text-align:left;white-space:pre-wrap;color:var(--text);cursor:text}.prose pre.mermaid[data-mermaid-state=error]:before{content:"Không thể vẽ sơ đồ — đang hiển thị mã nguồn.";display:block;margin-bottom:14px;color:var(--muted);font-family:var(--mono);font-size:.75rem;white-space:normal}.prose pre.mermaid svg{max-width:100%;height:auto;display:inline-block}@keyframes mermaid-pulse{0%,to{opacity:.55}50%{opacity:1}}@media(prefers-reduced-motion:reduce){.prose pre.mermaid[data-mermaid-state=loading]:before{animation:none}}@media(max-width:640px){.prose pre.mermaid[data-mermaid-state=ready] svg{width:520px;max-width:none}}.diagram{background:var(--card-hover);border:1px solid var(--line);border-radius:14px;padding:24px}.post-foot{margin-top:48px;padding-top:26px;border-top:1px solid var(--line)}.share{display:flex;align-items:center;gap:11px}.share-label{font-family:var(--mono);font-size:.7rem;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);margin-right:4px}.share-btn{width:38px;height:38px;display:grid;place-items:center;border:1px solid var(--line);border-radius:10px;color:var(--muted);background:transparent;cursor:pointer;transition:color .2s,border-color .2s,transform .2s}.share-btn:hover{color:var(--accent);border-color:var(--accent);transform:translateY(-2px)}.share-btn.done{color:var(--accent);border-color:var(--accent)}.share-btn svg{width:17px;height:17px}.related{margin-top:56px}.related-title{font-family:var(--mono);font-size:.72rem;letter-spacing:.16em;text-transform:uppercase;color:var(--muted);margin:0 0 20px}.related-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.related-card{display:flex;flex-direction:column;gap:8px;padding:22px;border:1px solid var(--line);border-radius:14px;background:var(--card-hover);transition:transform .2s,border-color .2s}.related-card:hover{transform:translateY(-3px);border-color:var(--accent)}.related-card:hover .rc-title{color:var(--accent)}.rc-title{font-weight:650;color:var(--heading);font-size:1.02rem;letter-spacing:-.01em;transition:color .2s;line-height:1.3}.rc-desc{color:var(--muted);font-size:.88rem;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}@media(max-width:640px){.related-grid{grid-template-columns:1fr}}.prose sup.cite{font-size:.68em;line-height:0;white-space:nowrap}.prose .inline-note{display:inline-block;padding:1px 8px;border:2px solid #f0d5a8;border-radius:8px;background:#fff8ed;color:#8d421f;cursor:pointer;transition:background .15s,border-color .15s;white-space:nowrap;font-weight:550}.prose .inline-note:hover,.prose .inline-note.is-active{background:#ffedd8;border-color:#eab77b;font-weight:400}.prose .inline-note:after{content:attr(data-note-number);display:inline-grid;place-items:center;width:1.35em;height:1.35em;margin-left:7px;border-radius:50%;background:#f5dfbd;color:#8d421f;font:700 .58em/1 var(--mono);vertical-align:middle}.note-connector{position:fixed;inset:0;z-index:23;width:100vw;height:100vh;pointer-events:none;overflow:visible}.note-connector[hidden]{display:none}.note-connector path{fill:none;stroke:#c3a72b;stroke-width:1.5;stroke-dasharray:5 5;opacity:.8}.note-rail{position:fixed;z-index:24;right:clamp(0px,calc(3vw - 20px),32px);top:28%;width:min(360px,calc(100vw - 44px));padding:16px 18px;border:1px solid #dfca67;border-radius:14px;background:#fff8d9;box-shadow:0 12px 35px #5b4c1424;color:#514b35;line-height:1.55;font-size:.88rem}.note-rail[hidden]{display:none}.note-rail-head{display:flex;align-items:center;gap:12px;margin-bottom:18px;color:#91a0ba;font-family:var(--mono);font-size:.72rem;letter-spacing:.04em;white-space:nowrap}.note-label{padding:7px 14px;border-radius:7px;background:#fff0db;color:#a95325;letter-spacing:.12em;font-weight:700}.note-title{margin:0 0 14px;color:#172038;font-size:1.25rem;line-height:1.2}.note-rail-head>div{margin-left:auto;display:flex;align-items:center}.note-rail-body strong{color:#172038}.note-rail-head button{border:0;background:none;color:var(--muted);font-size:1.2rem;cursor:pointer}.note-rail-head #noteShowAll{font:600 .65rem var(--mono);color:var(--accent);letter-spacing:0;text-transform:none}.note-item{padding:0 0 14px;margin:0 0 14px;border-bottom:1px solid #dfca67}.note-item:last-child{padding-bottom:0;margin-bottom:0;border-bottom:0}.note-item strong{display:block;margin-bottom:6px;color:#806c16;font:600 .78rem var(--mono)}.note-item p{margin:0}.note-rail.all-notes{background:transparent;border:0;box-shadow:none;padding:0;width:min(360px,calc(100vw - 44px))}.note-rail.all-notes>.note-rail-head{display:none}.all-notes .note-item{padding:26px 28px 28px;margin:0 0 18px;border:1px solid #f0d98f;border-radius:22px;background:#fffdf2;box-shadow:0 10px 25px #5b4c1414}.all-notes .note-item:nth-child(2){background:#f3f8ff;border-color:#cfe0ff}.note-item-head{display:flex;gap:14px;align-items:center;margin-bottom:22px;color:#91a0ba;font:600 .72rem var(--mono)}.note-item-head span:first-child{padding:7px 14px;border-radius:7px;background:#fff0db;color:#a95325;letter-spacing:.12em}.note-item:nth-child(2) .note-item-head span:first-child{background:#e4efff;color:#263754}.note-item h3{margin:0 0 14px;color:#172038;font-size:1.25rem}.note-item p{font-size:.98rem;line-height:1.6;color:#4d586e}.note-item p strong{display:inline;color:#172038;font:700 inherit}@media(max-width:1100px){.note-rail{right:18px;top:auto;bottom:18px}}.note-rail.all-notes{width:min(300px,calc(100vw - 44px));right:clamp(0px,calc(3vw - 20px),32px)}.note-rail{width:min(300px,calc(100vw - 44px))}.note-card{width:100%;box-sizing:border-box;padding:16px 18px;margin:0 0 18px;border:1px solid #dfca67;border-radius:14px;background:#fff8d9;box-shadow:0 12px 35px #5b4c1424;color:#514b35;line-height:1.55;font-size:.88rem}.note-card:nth-child(2){background:#f3f8ff;border-color:#cfe0ff}.note-card .note-rail-head{margin-bottom:18px}.note-card .note-title{margin:0 0 14px}.note-card p{margin:0;font-size:.98rem;line-height:1.6}.note-card p strong{display:inline;color:#172038;font-weight:700}.note-item-controls{margin-left:auto;display:flex;align-items:center;gap:10px}.note-item-controls button{border:0;background:none;cursor:pointer;color:#91a0ba;font:600 .72rem var(--mono)}.note-item-controls button:last-child{font-size:1.3rem}.note-marker{color:#91a0ba}.note-card .note-rail-head{gap:8px;font-size:.65rem}.note-card .note-label{padding:7px 10px;font-size:.65rem}.note-card .note-item-controls{gap:4px}.note-card .note-item-controls button{font-size:.62rem}.note-card .note-item-controls button:last-child{font-size:1.1rem}.note-rail.all-notes>.note-title{display:none}.all-notes .note-item{padding:16px 18px;margin:0 0 18px;border:1px solid #dfca67;border-radius:14px;background:#fff8d9;box-shadow:0 12px 35px #5b4c1424}.prose sup.cite a{color:var(--accent);text-decoration:none;font-weight:700;padding:0 1px}.prose sup.cite a:hover{text-decoration:underline}.prose .references{counter-reset:ref;list-style:none;padding:0;margin:1.4rem 0;display:flex;flex-direction:column;gap:12px;font-size:.9rem}.article-notes{margin:3rem 0 2rem;padding-top:1.5rem;border-top:1px solid var(--line)}.article-notes h2{font-size:1.35rem;margin:0 0 1rem}.article-notes ol{margin:0;padding-left:1.4rem;color:var(--muted)}.article-notes li{padding-left:.35rem;margin:.55rem 0;line-height:1.55}.article-notes strong{color:var(--text-strong)}.prose .references li{position:relative;padding-left:36px;color:var(--muted);line-height:1.55;scroll-margin-top:84px}.prose .references li:before{counter-increment:ref;content:"[" counter(ref) "]";position:absolute;left:0;top:0;font-family:var(--mono);font-size:.78rem;color:var(--accent);font-weight:600}.prose .references li:target{background:var(--card-hover);border-radius:8px;padding:8px 8px 8px 42px;margin-left:-6px}.prose .references li em{color:var(--text-strong);font-style:italic}.prose .references a{color:var(--accent);text-decoration:underline;text-underline-offset:2px;text-decoration-thickness:1px}.prose img,.article-cover{cursor:zoom-in}.lb{position:fixed;inset:0;z-index:120;display:none;padding:clamp(14px,3vw,40px);background:#020617db;backdrop-filter:blur(8px);overscroll-behavior:contain}.lb.open{display:grid;place-items:center}.lb-panel{background:var(--bg);border:1px solid var(--line);border-radius:14px;width:100%;height:100%;overflow:auto;padding:clamp(14px,2.5vw,28px);box-shadow:0 24px 70px -18px #020617bf;cursor:zoom-in;touch-action:pan-x pan-y}.lb-media{display:block;width:100%;max-width:100%;height:auto;min-height:0;margin:auto}.lb-panel img.lb-media{border-radius:6px}.lb.zoom .lb-panel{cursor:zoom-out}.lb.zoom .lb-media{width:180%;max-width:none}.lb-close{position:fixed;top:14px;right:16px;width:40px;height:40px;display:grid;place-items:center;border:1px solid var(--line);border-radius:10px;background:var(--bg);color:var(--text-strong);cursor:pointer;transition:border-color .18s,color .18s;z-index:1}.lb-close:hover{border-color:var(--accent);color:var(--accent)}.lb-close svg{width:17px;height:17px}.lb-hint{position:fixed;bottom:16px;left:50%;transform:translate(-50%);font-family:var(--mono);font-size:.7rem;letter-spacing:.05em;color:#94a3b8;pointer-events:none}@media(max-width:640px){.lb-hint{display:none}}.site-foot{border-top:1px solid var(--line);margin-top:auto}.site-foot-inner{max-width:1400px;margin:0 auto;padding:26px clamp(22px,5vw,40px);display:flex;align-items:center;gap:12px;flex-wrap:wrap;font-family:var(--mono);font-size:.74rem;letter-spacing:.03em;color:var(--muted)}.site-foot-sep{width:3px;height:3px;border-radius:50%;background:var(--muted);flex:none}.site-foot-mail{color:var(--muted);text-decoration:none;transition:color .2s}.site-foot-mail:hover{color:var(--accent)}.site-foot-links{margin-left:auto;display:flex;align-items:center;gap:14px}.site-foot-links a{color:var(--muted);display:inline-flex;transition:color .2s}.site-foot-links a:hover{color:var(--accent)}.site-foot-links svg{width:17px;height:17px}@media(max-width:520px){.site-foot-links{margin-left:0;width:100%}}