@font-face{font-display:block;font-family:KaTeX_AMS;font-style:normal;font-weight:400;src:url(/assets/KaTeX_AMS-Regular-BQhdFMY1.woff2)format("woff2"),url(/assets/KaTeX_AMS-Regular-DMm9YOAa.woff)format("woff"),url(/assets/KaTeX_AMS-Regular-DRggAlZN.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Caligraphic;font-style:normal;font-weight:700;src:url(/assets/KaTeX_Caligraphic-Bold-Dq_IR9rO.woff2)format("woff2"),url(/assets/KaTeX_Caligraphic-Bold-BEiXGLvX.woff)format("woff"),url(/assets/KaTeX_Caligraphic-Bold-ATXxdsX0.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Caligraphic;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Caligraphic-Regular-Di6jR-x-.woff2)format("woff2"),url(/assets/KaTeX_Caligraphic-Regular-CTRA-rTL.woff)format("woff"),url(/assets/KaTeX_Caligraphic-Regular-wX97UBjC.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Fraktur;font-style:normal;font-weight:700;src:url(/assets/KaTeX_Fraktur-Bold-CL6g_b3V.woff2)format("woff2"),url(/assets/KaTeX_Fraktur-Bold-BsDP51OF.woff)format("woff"),url(/assets/KaTeX_Fraktur-Bold-BdnERNNW.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Fraktur;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Fraktur-Regular-CTYiF6lA.woff2)format("woff2"),url(/assets/KaTeX_Fraktur-Regular-Dxdc4cR9.woff)format("woff"),url(/assets/KaTeX_Fraktur-Regular-CB_wures.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:normal;font-weight:700;src:url(/assets/KaTeX_Main-Bold-Cx986IdX.woff2)format("woff2"),url(/assets/KaTeX_Main-Bold-Jm3AIy58.woff)format("woff"),url(/assets/KaTeX_Main-Bold-waoOVXN0.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:italic;font-weight:700;src:url(/assets/KaTeX_Main-BoldItalic-DxDJ3AOS.woff2)format("woff2"),url(/assets/KaTeX_Main-BoldItalic-SpSLRI95.woff)format("woff"),url(/assets/KaTeX_Main-BoldItalic-DzxPMmG6.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:italic;font-weight:400;src:url(/assets/KaTeX_Main-Italic-NWA7e6Wa.woff2)format("woff2"),url(/assets/KaTeX_Main-Italic-BMLOBm91.woff)format("woff"),url(/assets/KaTeX_Main-Italic-3WenGoN9.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Main-Regular-B22Nviop.woff2)format("woff2"),url(/assets/KaTeX_Main-Regular-Dr94JaBh.woff)format("woff"),url(/assets/KaTeX_Main-Regular-ypZvNtVU.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Math;font-style:italic;font-weight:700;src:url(/assets/KaTeX_Math-BoldItalic-CZnvNsCZ.woff2)format("woff2"),url(/assets/KaTeX_Math-BoldItalic-iY-2wyZ7.woff)format("woff"),url(/assets/KaTeX_Math-BoldItalic-B3XSjfu4.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Math;font-style:italic;font-weight:400;src:url(/assets/KaTeX_Math-Italic-t53AETM-.woff2)format("woff2"),url(/assets/KaTeX_Math-Italic-DA0__PXp.woff)format("woff"),url(/assets/KaTeX_Math-Italic-flOr_0UB.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_SansSerif;font-style:normal;font-weight:700;src:url(/assets/KaTeX_SansSerif-Bold-D1sUS0GD.woff2)format("woff2"),url(/assets/KaTeX_SansSerif-Bold-DbIhKOiC.woff)format("woff"),url(/assets/KaTeX_SansSerif-Bold-CFMepnvq.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_SansSerif;font-style:italic;font-weight:400;src:url(/assets/KaTeX_SansSerif-Italic-C3H0VqGB.woff2)format("woff2"),url(/assets/KaTeX_SansSerif-Italic-DN2j7dab.woff)format("woff"),url(/assets/KaTeX_SansSerif-Italic-YYjJ1zSn.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_SansSerif;font-style:normal;font-weight:400;src:url(/assets/KaTeX_SansSerif-Regular-DDBCnlJ7.woff2)format("woff2"),url(/assets/KaTeX_SansSerif-Regular-CS6fqUqJ.woff)format("woff"),url(/assets/KaTeX_SansSerif-Regular-BNo7hRIc.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Script;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Script-Regular-D3wIWfF6.woff2)format("woff2"),url(/assets/KaTeX_Script-Regular-D5yQViql.woff)format("woff"),url(/assets/KaTeX_Script-Regular-C5JkGWo-.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size1;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Size1-Regular-mCD8mA8B.woff2)format("woff2"),url(/assets/KaTeX_Size1-Regular-C195tn64.woff)format("woff"),url(/assets/KaTeX_Size1-Regular-Dbsnue_I.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size2;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Size2-Regular-Dy4dx90m.woff2)format("woff2"),url(/assets/KaTeX_Size2-Regular-oD1tc_U0.woff)format("woff"),url(/assets/KaTeX_Size2-Regular-B7gKUWhC.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size3;font-style:normal;font-weight:400;src:url(data:font/woff2;base64,d09GMgABAAAAAA4oAA4AAAAAHbQAAA3TAAEAAAAAAAAAAAAAAAAAAAAAAAAAAAAABmAAgRQIDgmcDBEICo1oijYBNgIkA14LMgAEIAWJAAeBHAyBHBvbGiMRdnO0IkRRkiYDgr9KsJ1NUAf2kILNxgUmgqIgq1P89vcbIcmsQbRps3vCcXdYOKSWEPEKgZgQkprQQsxIXUgq0DqpGKmIvrgkeVGtEQD9DzAO29fM9jYhxZEsL2FeURH2JN4MIcTdO049NCVdxQ/w9NrSYFEBKTDKpLKfNkCGDc1RwjZLQcm3vqJ2UW9Xfa3tgAHz6ivp6vgC2yD4/6352ndnN0X0TL7seypkjZlMsjmZnf0Mm5Q+JykRWQBKCVCVPbARPXWyQtb5VgLB6Biq7/Uixcj2WGqdI8tGSgkuRG+t910GKP2D7AQH0DB9FMDW/obJZ8giFI3Wg8Cvevz0M+5m0rTh7XDBlvo9Y4vm13EXmfttwI4mBo1EG15fxJhUiCLbiiyCf/ZA6MFAhg3pGIZGdGIVjtPn6UcMk9A/UUr9PhoNsCENw1APAq0gpH73e+M+0ueyHbabc3vkbcdtzcf/fiy+NxQEjf9ud/ELBHAXJ0nk4z+MXH2Ev/kWyV4k7SkvpPc9Qr38F6RPWnM9cN6DJ0AdD1BhtgABtmoRoFCvPsBAumNm6soZG2Gk5GyVTo2sJncSyp0jQTYoR6WDvTwaaEcHsxHfvuWhHA3a6bN7twRKtcGok6NsCi7jYRrM2jExsUFMxMQYuJbMhuWNOumEJy9hi29Dmg5zMp/A5+hhPG19j1vBrq8JTLr8ki5VLPmG/PynJHVul440bxg5xuymHUFPBshC+nA9I1FmwbRBTNHAcik3Oae0cxKoI3MOriM42UrPe51nsaGxJ+WfXubAsP84aabUlQSJ1IiE0iPETLUU4CATgfXSCSpuRFRmCGbO+wSpAnzaeaCYW1VNEysRtuXCEL1kUFUbbtMv3Tilt/1c11jt3Q5bbMa84cpWipp8Elw3MZhOHsOlwwVUQM3lAR35JiFQbaYCRnMF2lxAWoOg2gyoIV4PouX8HytNIfLhqpJtXB4vjiViUI8IJ7bkC4ikkQvKksnOTKICwnqWSZ9YS5f0WCxmpgjbIq7EJcM4aI2nmhLNY2JIUgOjXZFWBHb+x5oh6cwb0Tv1ackHdKi0I9OO2wE9aogIOn540CCCziyhN+IaejtgAONKznHlHyutPrHGwCx9S6B8kfS4Mfi4Eyv7OU730bT1SCBjt834cXsf43zVjPUqqJjgrjeGnBxSG4aYAKFuVbeCfkDIjAqMb6yLNIbCuvXhMH2/+k2vkNpkORhR59N1CkzoOENvneIosjYmuTxlhUzaGEJQ/iWqx4dmwpmKjrwTiTGTCVozNAYqk/zXOndWxuWSmJkQpJw3pK5KX6QrLt5LATMqpmPAQhkhK6PUjzHUn7E0gHE0kPE0iKkolgkUx9SZmVAdDgpffdyJKg3k7VmzYGCwVXGz/tXmkOIp+vcWs+EMuhhvN0h9uhfzWJziBQmCREGSIFmQIkgVpAnSBRmC//6hkLZwaVhwxlrJSOdqlFtOYxlau9F2QN5Y98xmIAsiM1HVp2VFX+DHHGg6Ecjh3vmqtidX3qHI2qycTk/iwxSt5UzTmEP92ZBnEWTk4Mx8Mpl78ZDokxg/KWb+Q0QkvdKVmq3TMW+RXEgrsziSAfNXFMhDc60N5N9jQzjfO0kBKpUZl0ZmwJ41j/B9Hz6wmRaJB84niNmQrzp9eSlQCDDzazGDdVi3P36VZQ+Jy4f9UBNp+3zTjqI4abaFAm+GShVaXlsGdF3FYzZcDI6cori4kMxUECl9IjJZpzkvitAoxKue+90pDMvcKRxLl53TmOKCmV/xRolNKSqqUxc6LStOETmFOiLZZptlZepcKiAzteG8PEdpnQpbOMNcMsR4RR2Bs0cKFEvSmIjAFcnarqwUL4lDhHmnVkwu1IwshbiCcgvOheZuYyOteufZZwlcTlLgnZ3o/WcYdzZHW/WGaqaVfmTZ1aWCceJjkbZqsfbkOtcFlUZM/jy+hXHDbaUobWqqXaeWobbLO99yG5N3U4wxco0rQGGcOLASFMXeJoham8M+/x6O2WywK2l4HGbq1CoUyC/IZikQhdq3SiuNrvAEj0AVu9x2x3lp/xWzahaxidezFVtdcb5uEnzyl0ZmYiuKI0exvCd4Xc9CV1KB0db00z92wDPde0kukbvZIWN6jUWFTmPIC/Y4UPCm8UfDTFZpZNon1qLFTkBhxzB+FjQRA2Q/YRJT8pQigslMaUpFyAG8TMlXigiqmAZX4xgijKjRlGpLE0GdplRfCaJo0JQaSxNBk6ZmMzcya0FmrcisDdn0Q3HI2sWSppYigmlM1XT/kLQZSNpMJG0WkjYbSZuDpM1F0uYhFc1HxU4m1QJjDK6iL0S5uSj5rgXc3RejEigtcRBtqYPQsiTskmO5vosV+q4VGIKbOkDg0jtRrq+Em1YloaTFar3EGr1EUC8R0kus1Uus00usL97ABr2BjXoDm/QGNhuWtMVBKOwg/i78lT7hBsAvDmwHc/ao3vmUbBmhjeYySZNWvGkfZAgISDSaDo1SVpzGDsAEkF8B+gEapViUoZgUWXcRIGFZNm6gWbAKk0bp0k1MHG9fLYtV4iS2SmLEQFARzRcnf9PUS0LVn05/J9MiRRBU3v2IrvW974v4N00L7ZMk0wXP1409CHo/an8zTRHD3eSJ6m8D4YMkZNl3M79sqeuAsr/m3f+8/yl7A50aiAEJgeBeMWzu7ui9UfUBCe2TIqZIoOd/3/udRBOQidQZUERzb2/VwZN1H/Sju82ew2H2Wfr6qvfVf3hqwDvAIpkQVFy4B9Pe9e4/XvPeceu7h3dvO56iJPf0+A6cqA2ip18ER+iFgggiuOkvj24bby0N9j2UHIkgqIt+sVgfodC4YghLSMjSZbH0VR/6dMDrYJeKHilKTemt6v6kvzvn3/RrdWtr0GoN/xL+Sex/cPYLUpepx9cz/D46UPU5KXgAQa+NDps1v6J3xP1i2HtaDB0M9aX2deA7SYff//+gUCovMmIK/qfsFcOk+4Y5ZN97XlG6zebqtMbKgeRFi51vnxTQYBUik2rS/Cn6PC8ADR8FGxsRPB82dzfND90gIcshOcYUkfjherBz53odpm6TP8txlwOZ71xmfHHOvq053qFF/MRlS3jP0ELudrf2OeN8DHvp6ZceLe8qKYvWz/7yp0u4dKPfli3CYq0O13Ih71mylJ80tOi10On8wi+F4+LWgDPeJ30msSQt9/vkmHq9/Lvo2b461mP801v3W4xTcs6CbvF9UDdrSt+A8OUbpSh55qAUFXWznBBfdeJ8a4d7ugT5tvxUza3h9m4H7ptTqiG4z0g5dc0X29OcGlhpGFMpQo9ytTS+NViZpNdvU4kWx+LKxNY10kQ1yqGXrhe4/1nvP7E+nd5A92TtaRplbHSqoIdOqtRWti+fkB5/n1+/VvCmz12pG1kpQWsfi1ftlBobm0bpngs16CHkbIwdLnParxtTV3QYRlfJ0KFskH7pdN/YDn+yRuSd7sNH3aO0DYPggk6uWuXrfOc+fa3VTxFVvKaNxHsiHmsXyCLIE5yuOeN3/Jdf8HBL/5M6shjyhxHx9BjB1O0+4NLOnjLLSxwO7ukN4jMbOIcD879KLSi6Pk61Oqm2377n8079PXEEQ7cy7OKEC9nbpet118fxweTafpt69x/Bt8UqGzNQt7aelpc44dn5cqhwf71+qKp/Zf/+a0zcizOUWpl/iBcSXip0pplkatCchoH5c5aUM8I7/dWxAej8WicPL1URFZ9BDJelUwEwTkGqUhgSlydVes95YdXvhh9Gfz/aeFWvgVb4tuLbcv4+wLdutVZv/cUonwBD/6eDlE0aSiKK/uoH3+J1wDE/jMVqY2ysGufN84oIXB0sPzy8ollX/LegY74DgJXJR57sn+VGza0x3DnuIgABFM15LmajjjsNlYj+JEZGbuRYcAMOWxFkPN2w6Wd46xo4gVWQR/X4lyI/R6K/YK0110GzudPRW7Y+UOBGTfNNzHeYT0fiH0taunBpq9HEW8OKSaBGj21L0MqenEmNRWBAWDWAk4CpNoEZJ2tTaPFgbQYj8HxtFilErs3BTRwT8uO1NXQaWfIotchmPkAF5mMBAliEmZiOGVgCG9LgRzpscMAOOwowlT3JhusdazXGSC/hxR3UlmWVwWHpOIKheqONvjyhSiTHIkVUco5bnji8m//zL7PKaT1Vl5I6UE609f+gkr6MZKVyKc7zJRmCahLsdlyA5fdQkRSan9LgnnLEyGSkaKJCJog0wAgvepWBt80+1yKln1bMVtCljfNWDueKLsWwaEbBSfSPTEmVRsUcYYMnEjcjeyCZzBXK9E9BYBXLKjOSpUDR+nEV3TFSUdQaz+ot98QxgXwx0GQ+EEUAKB2qZPkQQ0GqFD8UPFMqyaCHM24BZmSGic9EYMagKizOw9Hz50DMrDLrqqLkTAhplMictiCAx5S3BIUQdeJeLnBy2CNtMfz6cV4u8XKoFZQesbf9YZiIERiHjaNodDW6LgcirX/mPnJIkBGDUpTBhSa0EIr38D5hCIszhCM8URGBqImoWjpvpt1ebu/v3Gl3qJfMnNM+9V+kiRFyROTPHQWOcs1dNW94/ukKMPZBvDi55i5CttdeJz84DLngLqjcdwEZ87bFFR8CIG35OAkDVN6VRDZ7aq67NteYqZ2lpT8oYB2CytoBd6VuAx4WgiAsnuj3WohG+LugzXiQRDeM3XYXlULv4dp5VFYC)format("woff2"),url(/assets/KaTeX_Size3-Regular-CTq5MqoE.woff)format("woff"),url(/assets/KaTeX_Size3-Regular-DgpXs0kz.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size4;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Size4-Regular-Dl5lxZxV.woff2)format("woff2"),url(/assets/KaTeX_Size4-Regular-BF-4gkZK.woff)format("woff"),url(/assets/KaTeX_Size4-Regular-DWFBv043.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Typewriter;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Typewriter-Regular-CO6r4hn1.woff2)format("woff2"),url(/assets/KaTeX_Typewriter-Regular-C0xS9mPB.woff)format("woff"),url(/assets/KaTeX_Typewriter-Regular-D3Ib7_Hf.ttf)format("truetype")}.katex{text-indent:0;text-rendering:auto;font:1.21em/1.2 KaTeX_Main,Times New Roman,serif;position:relative}.katex *{border-color:currentColor;-ms-high-contrast-adjust:none!important}.katex .katex-version:after{content:"0.18.1"}.katex .katex-mathml{clip-path:inset(50%);border:0;width:1px;height:1px;padding:0;position:absolute;overflow:hidden}.katex .katex-html>.katex-newline{display:block}.katex .katex-base{white-space:nowrap;width:min-content;position:relative}.katex .katex-base,.katex .katex-strut{display:inline-block}.katex .textbf{font-weight:700}.katex .textit{font-style:italic}.katex .textrm{font-family:KaTeX_Main}.katex .textsf{font-family:KaTeX_SansSerif}.katex .texttt{font-family:KaTeX_Typewriter}.katex .mathnormal{font-family:KaTeX_Math;font-style:italic}.katex .mathit{font-family:KaTeX_Main;font-style:italic}.katex .mathrm{font-style:normal}.katex .mathbf{font-family:KaTeX_Main;font-weight:700}.katex .boldsymbol{font-family:KaTeX_Math;font-style:italic;font-weight:700}.katex .amsrm,.katex .mathbb,.katex .textbb{font-family:KaTeX_AMS}.katex .mathcal{font-family:KaTeX_Caligraphic}.katex .mathfrak,.katex .textfrak{font-family:KaTeX_Fraktur}.katex .mathboldfrak,.katex .textboldfrak{font-family:KaTeX_Fraktur;font-weight:700}.katex .mathtt{font-family:KaTeX_Typewriter}.katex .mathscr,.katex .textscr{font-family:KaTeX_Script}.katex .mathsf,.katex .textsf{font-family:KaTeX_SansSerif}.katex .mathboldsf,.katex .textboldsf{font-family:KaTeX_SansSerif;font-weight:700}.katex .mathitsf,.katex .mathsfit,.katex .textitsf{font-family:KaTeX_SansSerif;font-style:italic}.katex .mainrm{font-family:KaTeX_Main;font-style:normal}.katex .vlist-t{border-collapse:collapse;table-layout:fixed;display:inline-table}.katex .vlist-r{display:table-row}.katex .vlist{vertical-align:bottom;display:table-cell;position:relative}.katex .vlist>span{height:0;display:block;position:relative}.katex .vlist>span>span{display:inline-block}.katex .vlist>span>.pstrut{width:0;overflow:hidden}.katex .vlist-t2{margin-right:-2px}.katex .vlist-s{vertical-align:bottom;width:2px;min-width:2px;font-size:1px;display:table-cell}.katex .katex-vbox{flex-direction:column;align-items:baseline;display:inline-flex}.katex .katex-thinbox{flex-direction:row;width:0;max-width:0;display:inline-flex}.katex .msupsub{text-align:left}.katex .mfrac>span>span{text-align:center}.katex .mfrac .frac-line{border-bottom-style:solid;width:100%;display:inline-block}.katex .katex-hdashline,.katex .katex-hline,.katex .katex-overline .overline-line,.katex .katex-rule,.katex .katex-underline .underline-line,.katex .mfrac .frac-line{min-height:1px}.katex .mspace{display:inline-block}.katex .katex-smash{line-height:0;display:inline}.katex .clap,.katex .llap,.katex .rlap{width:0;position:relative}.katex .clap>.katex-inner,.katex .llap>.katex-inner,.katex .rlap>.katex-inner{position:absolute}.katex .clap>.katex-fix,.katex .llap>.katex-fix,.katex .rlap>.katex-fix{display:inline-block}.katex .llap>.katex-inner{right:0}.katex .clap>.katex-inner,.katex .rlap>.katex-inner{left:0}.katex .clap>.katex-inner>span{margin-left:-50%;margin-right:50%}.katex .katex-rule{border:0 solid;display:inline-block;position:relative}.katex .katex-hline,.katex .katex-overline .overline-line,.katex .katex-underline .underline-line{border-bottom-style:solid;width:100%;display:inline-block}.katex .katex-hdashline{border-bottom-style:dashed;width:100%;display:inline-block}.katex .sqrt>.katex-root{margin-left:.277778em;margin-right:-.555556em}.katex .fontsize-ensurer.reset-size1.size1,.katex .katex-sizing.reset-size1.size1{font-size:1em}.katex .fontsize-ensurer.reset-size1.size2,.katex .katex-sizing.reset-size1.size2{font-size:1.2em}.katex .fontsize-ensurer.reset-size1.size3,.katex .katex-sizing.reset-size1.size3{font-size:1.4em}.katex .fontsize-ensurer.reset-size1.size4,.katex .katex-sizing.reset-size1.size4{font-size:1.6em}.katex .fontsize-ensurer.reset-size1.size5,.katex .katex-sizing.reset-size1.size5{font-size:1.8em}.katex .fontsize-ensurer.reset-size1.size6,.katex .katex-sizing.reset-size1.size6{font-size:2em}.katex .fontsize-ensurer.reset-size1.size7,.katex .katex-sizing.reset-size1.size7{font-size:2.4em}.katex .fontsize-ensurer.reset-size1.size8,.katex .katex-sizing.reset-size1.size8{font-size:2.88em}.katex .fontsize-ensurer.reset-size1.size9,.katex .katex-sizing.reset-size1.size9{font-size:3.456em}.katex .fontsize-ensurer.reset-size1.size10,.katex .katex-sizing.reset-size1.size10{font-size:4.148em}.katex .fontsize-ensurer.reset-size1.size11,.katex .katex-sizing.reset-size1.size11{font-size:4.976em}.katex .fontsize-ensurer.reset-size2.size1,.katex .katex-sizing.reset-size2.size1{font-size:.833333em}.katex .fontsize-ensurer.reset-size2.size2,.katex .katex-sizing.reset-size2.size2{font-size:1em}.katex .fontsize-ensurer.reset-size2.size3,.katex .katex-sizing.reset-size2.size3{font-size:1.16667em}.katex .fontsize-ensurer.reset-size2.size4,.katex .katex-sizing.reset-size2.size4{font-size:1.33333em}.katex .fontsize-ensurer.reset-size2.size5,.katex .katex-sizing.reset-size2.size5{font-size:1.5em}.katex .fontsize-ensurer.reset-size2.size6,.katex .katex-sizing.reset-size2.size6{font-size:1.66667em}.katex .fontsize-ensurer.reset-size2.size7,.katex .katex-sizing.reset-size2.size7{font-size:2em}.katex .fontsize-ensurer.reset-size2.size8,.katex .katex-sizing.reset-size2.size8{font-size:2.4em}.katex .fontsize-ensurer.reset-size2.size9,.katex .katex-sizing.reset-size2.size9{font-size:2.88em}.katex .fontsize-ensurer.reset-size2.size10,.katex .katex-sizing.reset-size2.size10{font-size:3.45667em}.katex .fontsize-ensurer.reset-size2.size11,.katex .katex-sizing.reset-size2.size11{font-size:4.14667em}.katex .fontsize-ensurer.reset-size3.size1,.katex .katex-sizing.reset-size3.size1{font-size:.714286em}.katex .fontsize-ensurer.reset-size3.size2,.katex .katex-sizing.reset-size3.size2{font-size:.857143em}.katex .fontsize-ensurer.reset-size3.size3,.katex .katex-sizing.reset-size3.size3{font-size:1em}.katex .fontsize-ensurer.reset-size3.size4,.katex .katex-sizing.reset-size3.size4{font-size:1.14286em}.katex .fontsize-ensurer.reset-size3.size5,.katex .katex-sizing.reset-size3.size5{font-size:1.28571em}.katex .fontsize-ensurer.reset-size3.size6,.katex .katex-sizing.reset-size3.size6{font-size:1.42857em}.katex .fontsize-ensurer.reset-size3.size7,.katex .katex-sizing.reset-size3.size7{font-size:1.71429em}.katex .fontsize-ensurer.reset-size3.size8,.katex .katex-sizing.reset-size3.size8{font-size:2.05714em}.katex .fontsize-ensurer.reset-size3.size9,.katex .katex-sizing.reset-size3.size9{font-size:2.46857em}.katex .fontsize-ensurer.reset-size3.size10,.katex .katex-sizing.reset-size3.size10{font-size:2.96286em}.katex .fontsize-ensurer.reset-size3.size11,.katex .katex-sizing.reset-size3.size11{font-size:3.55429em}.katex .fontsize-ensurer.reset-size4.size1,.katex .katex-sizing.reset-size4.size1{font-size:.625em}.katex .fontsize-ensurer.reset-size4.size2,.katex .katex-sizing.reset-size4.size2{font-size:.75em}.katex .fontsize-ensurer.reset-size4.size3,.katex .katex-sizing.reset-size4.size3{font-size:.875em}.katex .fontsize-ensurer.reset-size4.size4,.katex .katex-sizing.reset-size4.size4{font-size:1em}.katex .fontsize-ensurer.reset-size4.size5,.katex .katex-sizing.reset-size4.size5{font-size:1.125em}.katex .fontsize-ensurer.reset-size4.size6,.katex .katex-sizing.reset-size4.size6{font-size:1.25em}.katex .fontsize-ensurer.reset-size4.size7,.katex .katex-sizing.reset-size4.size7{font-size:1.5em}.katex .fontsize-ensurer.reset-size4.size8,.katex .katex-sizing.reset-size4.size8{font-size:1.8em}.katex .fontsize-ensurer.reset-size4.size9,.katex .katex-sizing.reset-size4.size9{font-size:2.16em}.katex .fontsize-ensurer.reset-size4.size10,.katex .katex-sizing.reset-size4.size10{font-size:2.5925em}.katex .fontsize-ensurer.reset-size4.size11,.katex .katex-sizing.reset-size4.size11{font-size:3.11em}.katex .fontsize-ensurer.reset-size5.size1,.katex .katex-sizing.reset-size5.size1{font-size:.555556em}.katex .fontsize-ensurer.reset-size5.size2,.katex .katex-sizing.reset-size5.size2{font-size:.666667em}.katex .fontsize-ensurer.reset-size5.size3,.katex .katex-sizing.reset-size5.size3{font-size:.777778em}.katex .fontsize-ensurer.reset-size5.size4,.katex .katex-sizing.reset-size5.size4{font-size:.888889em}.katex .fontsize-ensurer.reset-size5.size5,.katex .katex-sizing.reset-size5.size5{font-size:1em}.katex .fontsize-ensurer.reset-size5.size6,.katex .katex-sizing.reset-size5.size6{font-size:1.11111em}.katex .fontsize-ensurer.reset-size5.size7,.katex .katex-sizing.reset-size5.size7{font-size:1.33333em}.katex .fontsize-ensurer.reset-size5.size8,.katex .katex-sizing.reset-size5.size8{font-size:1.6em}.katex .fontsize-ensurer.reset-size5.size9,.katex .katex-sizing.reset-size5.size9{font-size:1.92em}.katex .fontsize-ensurer.reset-size5.size10,.katex .katex-sizing.reset-size5.size10{font-size:2.30444em}.katex .fontsize-ensurer.reset-size5.size11,.katex .katex-sizing.reset-size5.size11{font-size:2.76444em}.katex .fontsize-ensurer.reset-size6.size1,.katex .katex-sizing.reset-size6.size1{font-size:.5em}.katex .fontsize-ensurer.reset-size6.size2,.katex .katex-sizing.reset-size6.size2{font-size:.6em}.katex .fontsize-ensurer.reset-size6.size3,.katex .katex-sizing.reset-size6.size3{font-size:.7em}.katex .fontsize-ensurer.reset-size6.size4,.katex .katex-sizing.reset-size6.size4{font-size:.8em}.katex .fontsize-ensurer.reset-size6.size5,.katex .katex-sizing.reset-size6.size5{font-size:.9em}.katex .fontsize-ensurer.reset-size6.size6,.katex .katex-sizing.reset-size6.size6{font-size:1em}.katex .fontsize-ensurer.reset-size6.size7,.katex .katex-sizing.reset-size6.size7{font-size:1.2em}.katex .fontsize-ensurer.reset-size6.size8,.katex .katex-sizing.reset-size6.size8{font-size:1.44em}.katex .fontsize-ensurer.reset-size6.size9,.katex .katex-sizing.reset-size6.size9{font-size:1.728em}.katex .fontsize-ensurer.reset-size6.size10,.katex .katex-sizing.reset-size6.size10{font-size:2.074em}.katex .fontsize-ensurer.reset-size6.size11,.katex .katex-sizing.reset-size6.size11{font-size:2.488em}.katex .fontsize-ensurer.reset-size7.size1,.katex .katex-sizing.reset-size7.size1{font-size:.416667em}.katex .fontsize-ensurer.reset-size7.size2,.katex .katex-sizing.reset-size7.size2{font-size:.5em}.katex .fontsize-ensurer.reset-size7.size3,.katex .katex-sizing.reset-size7.size3{font-size:.583333em}.katex .fontsize-ensurer.reset-size7.size4,.katex .katex-sizing.reset-size7.size4{font-size:.666667em}.katex .fontsize-ensurer.reset-size7.size5,.katex .katex-sizing.reset-size7.size5{font-size:.75em}.katex .fontsize-ensurer.reset-size7.size6,.katex .katex-sizing.reset-size7.size6{font-size:.833333em}.katex .fontsize-ensurer.reset-size7.size7,.katex .katex-sizing.reset-size7.size7{font-size:1em}.katex .fontsize-ensurer.reset-size7.size8,.katex .katex-sizing.reset-size7.size8{font-size:1.2em}.katex .fontsize-ensurer.reset-size7.size9,.katex .katex-sizing.reset-size7.size9{font-size:1.44em}.katex .fontsize-ensurer.reset-size7.size10,.katex .katex-sizing.reset-size7.size10{font-size:1.72833em}.katex .fontsize-ensurer.reset-size7.size11,.katex .katex-sizing.reset-size7.size11{font-size:2.07333em}.katex .fontsize-ensurer.reset-size8.size1,.katex .katex-sizing.reset-size8.size1{font-size:.347222em}.katex .fontsize-ensurer.reset-size8.size2,.katex .katex-sizing.reset-size8.size2{font-size:.416667em}.katex .fontsize-ensurer.reset-size8.size3,.katex .katex-sizing.reset-size8.size3{font-size:.486111em}.katex .fontsize-ensurer.reset-size8.size4,.katex .katex-sizing.reset-size8.size4{font-size:.555556em}.katex .fontsize-ensurer.reset-size8.size5,.katex .katex-sizing.reset-size8.size5{font-size:.625em}.katex .fontsize-ensurer.reset-size8.size6,.katex .katex-sizing.reset-size8.size6{font-size:.694444em}.katex .fontsize-ensurer.reset-size8.size7,.katex .katex-sizing.reset-size8.size7{font-size:.833333em}.katex .fontsize-ensurer.reset-size8.size8,.katex .katex-sizing.reset-size8.size8{font-size:1em}.katex .fontsize-ensurer.reset-size8.size9,.katex .katex-sizing.reset-size8.size9{font-size:1.2em}.katex .fontsize-ensurer.reset-size8.size10,.katex .katex-sizing.reset-size8.size10{font-size:1.44028em}.katex .fontsize-ensurer.reset-size8.size11,.katex .katex-sizing.reset-size8.size11{font-size:1.72778em}.katex .fontsize-ensurer.reset-size9.size1,.katex .katex-sizing.reset-size9.size1{font-size:.289352em}.katex .fontsize-ensurer.reset-size9.size2,.katex .katex-sizing.reset-size9.size2{font-size:.347222em}.katex .fontsize-ensurer.reset-size9.size3,.katex .katex-sizing.reset-size9.size3{font-size:.405093em}.katex .fontsize-ensurer.reset-size9.size4,.katex .katex-sizing.reset-size9.size4{font-size:.462963em}.katex .fontsize-ensurer.reset-size9.size5,.katex .katex-sizing.reset-size9.size5{font-size:.520833em}.katex .fontsize-ensurer.reset-size9.size6,.katex .katex-sizing.reset-size9.size6{font-size:.578704em}.katex .fontsize-ensurer.reset-size9.size7,.katex .katex-sizing.reset-size9.size7{font-size:.694444em}.katex .fontsize-ensurer.reset-size9.size8,.katex .katex-sizing.reset-size9.size8{font-size:.833333em}.katex .fontsize-ensurer.reset-size9.size9,.katex .katex-sizing.reset-size9.size9{font-size:1em}.katex .fontsize-ensurer.reset-size9.size10,.katex .katex-sizing.reset-size9.size10{font-size:1.20023em}.katex .fontsize-ensurer.reset-size9.size11,.katex .katex-sizing.reset-size9.size11{font-size:1.43981em}.katex .fontsize-ensurer.reset-size10.size1,.katex .katex-sizing.reset-size10.size1{font-size:.24108em}.katex .fontsize-ensurer.reset-size10.size2,.katex .katex-sizing.reset-size10.size2{font-size:.289296em}.katex .fontsize-ensurer.reset-size10.size3,.katex .katex-sizing.reset-size10.size3{font-size:.337512em}.katex .fontsize-ensurer.reset-size10.size4,.katex .katex-sizing.reset-size10.size4{font-size:.385728em}.katex .fontsize-ensurer.reset-size10.size5,.katex .katex-sizing.reset-size10.size5{font-size:.433944em}.katex .fontsize-ensurer.reset-size10.size6,.katex .katex-sizing.reset-size10.size6{font-size:.48216em}.katex .fontsize-ensurer.reset-size10.size7,.katex .katex-sizing.reset-size10.size7{font-size:.578592em}.katex .fontsize-ensurer.reset-size10.size8,.katex .katex-sizing.reset-size10.size8{font-size:.694311em}.katex .fontsize-ensurer.reset-size10.size9,.katex .katex-sizing.reset-size10.size9{font-size:.833173em}.katex .fontsize-ensurer.reset-size10.size10,.katex .katex-sizing.reset-size10.size10{font-size:1em}.katex .fontsize-ensurer.reset-size10.size11,.katex .katex-sizing.reset-size10.size11{font-size:1.19961em}.katex .fontsize-ensurer.reset-size11.size1,.katex .katex-sizing.reset-size11.size1{font-size:.200965em}.katex .fontsize-ensurer.reset-size11.size2,.katex .katex-sizing.reset-size11.size2{font-size:.241158em}.katex .fontsize-ensurer.reset-size11.size3,.katex .katex-sizing.reset-size11.size3{font-size:.281351em}.katex .fontsize-ensurer.reset-size11.size4,.katex .katex-sizing.reset-size11.size4{font-size:.321543em}.katex .fontsize-ensurer.reset-size11.size5,.katex .katex-sizing.reset-size11.size5{font-size:.361736em}.katex .fontsize-ensurer.reset-size11.size6,.katex .katex-sizing.reset-size11.size6{font-size:.401929em}.katex .fontsize-ensurer.reset-size11.size7,.katex .katex-sizing.reset-size11.size7{font-size:.482315em}.katex .fontsize-ensurer.reset-size11.size8,.katex .katex-sizing.reset-size11.size8{font-size:.578778em}.katex .fontsize-ensurer.reset-size11.size9,.katex .katex-sizing.reset-size11.size9{font-size:.694534em}.katex .fontsize-ensurer.reset-size11.size10,.katex .katex-sizing.reset-size11.size10{font-size:.833601em}.katex .fontsize-ensurer.reset-size11.size11,.katex .katex-sizing.reset-size11.size11{font-size:1em}.katex .delimsizing.size1{font-family:KaTeX_Size1}.katex .delimsizing.size2{font-family:KaTeX_Size2}.katex .delimsizing.size3{font-family:KaTeX_Size3}.katex .delimsizing.size4{font-family:KaTeX_Size4}.katex .delimsizing.mult .delim-size1>span{font-family:KaTeX_Size1}.katex .delimsizing.mult .delim-size4>span{font-family:KaTeX_Size4}.katex .nulldelimiter{width:.12em;display:inline-block}.katex .delimcenter,.katex .op-symbol{position:relative}.katex .op-symbol.small-op{font-family:KaTeX_Size1}.katex .op-symbol.large-op{font-family:KaTeX_Size2}.katex .katex-accent>.vlist-t,.katex .op-limits>.vlist-t{text-align:center}.katex .katex-accent .accent-body{position:relative}.katex .katex-accent .accent-body:not(.accent-full){width:0}.katex .katex-overlay{display:block}.katex .mtable .vertical-separator{min-width:1px;display:inline-block}.katex .mtable .arraycolsep{display:inline-block}.katex .mtable .col-align-c>.vlist-t{text-align:center}.katex .mtable .col-align-l>.vlist-t{text-align:left}.katex .mtable .col-align-r>.vlist-t{text-align:right}.katex .svg-align{text-align:left}.katex svg{fill:currentColor;stroke:currentColor;height:inherit;width:100%;display:block;position:absolute}.katex svg path{stroke:none}.katex svg{fill-rule:nonzero;fill-opacity:1;stroke-width:1px;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1}.katex img{border-style:none;min-width:0;max-width:none;min-height:0;max-height:none}.katex .katex-stretchy{width:100%;display:block;position:relative;overflow:hidden}.katex .katex-stretchy:after,.katex .katex-stretchy:before{content:""}.katex .hide-tail{width:100%;position:relative;overflow:hidden}.katex .halfarrow-left{width:50.2%;position:absolute;left:0;overflow:hidden}.katex .halfarrow-right{width:50.2%;position:absolute;right:0;overflow:hidden}.katex .brace-left{width:25.1%;position:absolute;left:0;overflow:hidden}.katex .brace-center{width:50%;position:absolute;left:25%;overflow:hidden}.katex .brace-right{width:25.1%;position:absolute;right:0;overflow:hidden}.katex .x-arrow-pad{padding:0 .5em}.katex .cd-arrow-pad{padding:0 .55556em 0 .27778em}.katex .mover,.katex .munder,.katex .x-arrow{text-align:center}.katex .boxpad{padding:0 .3em}.katex .fbox,.katex .fcolorbox{box-sizing:border-box;border:.04em solid}.katex .cancel-pad{padding:0 .2em}.katex .cancel-lap{margin-left:-.2em;margin-right:-.2em}.katex .katex-sout{border-bottom-style:solid;border-bottom-width:.08em}.katex .angl{box-sizing:border-box;border-top:.049em solid;border-right:.049em solid;margin-right:.03889em}.katex .anglpad{padding:0 .03889em}.katex .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{color:#20242a;font-synthesis:none;--blue:#315f92;--blue-soft:#eaf1f8;--green:#2f7d5b;--green-soft:#e7f3ed;--amber:#9a651e;--amber-soft:#fbf1df;--red:#a74949;--red-soft:#f8e9e9;--ink:#20242a;--muted:#69717c;--faint:#9198a1;--line:#dfe3e8;--surface:#fff;--surface-alt:#f1f3f5;letter-spacing:0;background:#f7f8fa;font-family:Noto Sans SC,Microsoft YaHei,system-ui,sans-serif}*{box-sizing:border-box}html{background:#f7f8fa}body{min-width:320px;min-height:100vh;margin:0}button,input,select{font:inherit;letter-spacing:0}button{color:inherit}button:focus-visible,input:focus-visible,select:focus-visible{outline-offset:2px;outline:3px solid #315f9240}.app-shell{min-height:100vh}.sidebar{z-index:20;border-right:1px solid var(--line);background:#f2f4f6;flex-direction:column;width:252px;padding:18px 14px;display:flex;position:fixed;inset:0 auto 0 0}.brand-row{align-items:center;gap:11px;min-height:48px;padding:0 8px 18px;display:flex}.brand-mark{background:var(--ink);color:#fff;border-radius:6px;flex:0 0 38px;place-items:center;height:38px;font-weight:800;display:grid}.brand-row strong,.brand-row span{display:block}.brand-row strong{font-size:.96rem}.brand-row span{color:var(--muted);margin-top:2px;font-size:.72rem}.sidebar-close{margin-left:auto;display:none!important}.main-nav{gap:4px;display:grid}.main-nav button,.filter-row{color:#454c55;text-align:left;background:0 0;border:0;border-radius:6px;align-items:center;width:100%;min-height:44px;padding:0 11px;display:flex}.main-nav button{cursor:pointer}.main-nav button svg{width:18px;height:18px;margin-right:10px}.main-nav button span,.main-nav button>svg:last-child{color:var(--faint);margin-left:auto;margin-right:0;font-size:.76rem}.main-nav button:hover,.main-nav button.active{color:var(--ink);background:#e4e8ec}.main-nav button.active{font-weight:700}.sidebar-section{border-top:1px solid var(--line);margin-top:24px;padding-top:18px}.sidebar-label{color:var(--faint);padding:0 11px 8px;font-size:.72rem;font-weight:700;display:block}.filter-row{min-height:36px;font-size:.82rem}.filter-row strong{margin-left:auto;font-size:.75rem}.filter-row.muted{color:var(--muted)}.status-dot{background:#a9afb7;border-radius:50%;width:8px;height:8px;margin-right:10px}.dot-生疏{background:var(--red)}.dot-一般{background:var(--amber)}.dot-熟练{background:var(--green)}.dot-未验证{background:#939aa3}.sidebar-foot{border-top:1px solid var(--line);color:var(--faint);margin-top:auto;padding:14px 11px 2px;font-size:.72rem}.main-area{min-height:100vh;margin-left:252px}.topbar{z-index:12;border-bottom:1px solid var(--line);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);background:#f7f8faf5;align-items:center;height:60px;padding:0 22px;display:flex;position:sticky;top:0}.topbar-context{align-items:baseline;gap:10px;min-width:0;margin-right:auto;display:flex}.topbar-context strong{flex:none;font-size:.9rem}.topbar-context span{color:var(--muted);text-overflow:ellipsis;white-space:nowrap;font-size:.75rem;overflow:hidden}.icon-button{cursor:pointer;background:0 0;border:0;border-radius:6px;place-items:center;width:40px;height:40px;padding:0;display:grid}.icon-button:hover{background:#e9ecef}.icon-button svg{width:20px;height:20px}.menu-button{margin-right:7px;display:none}.page{width:min(100%,1080px);margin:0 auto;padding:32px 42px 84px}.eyebrow{color:var(--blue);font-size:.72rem;font-weight:800}.continue-band{background:var(--surface);border:1px solid #ccd5df;border-radius:8px;justify-content:space-between;align-items:center;gap:32px;min-height:180px;padding:28px 30px;display:flex}.continue-band h1{margin:7px 0 4px;font-size:1.45rem}.continue-band p{max-width:650px;color:var(--muted);margin:0;line-height:1.55}.primary-button{background:var(--blue);color:#fff;cursor:pointer;border:0;border-radius:6px;flex:none;justify-content:center;align-items:center;gap:10px;min-height:48px;padding:0 18px;font-weight:700;display:flex}.primary-button svg{width:18px}.progress-section,.home-page>section:not(:first-child){margin-top:34px}.section-heading{justify-content:space-between;align-items:center;min-height:40px;margin-bottom:12px;display:flex}.section-heading h2{margin:0;font-size:1rem}.section-heading>span{color:var(--muted);font-size:.78rem}.section-heading button{min-height:36px;color:var(--blue);cursor:pointer;background:0 0;border:0;align-items:center;gap:3px;font-size:.8rem;display:flex}.section-heading button svg{width:16px}.progress-track{background:#e1e5e9;border-radius:4px;height:7px;overflow:hidden}.progress-track span{background:var(--green);height:100%;transition:width .18s;display:block}.stat-grid{border-top:1px solid var(--line);border-bottom:1px solid var(--line);grid-template-columns:repeat(4,1fr);margin-top:16px;display:grid}.stat-grid button{border:0;border-right:1px solid var(--line);cursor:pointer;background:0 0;min-height:82px}.stat-grid button:last-child{border-right:0}.stat-grid button:hover{background:var(--surface-alt)}.stat-grid strong,.stat-grid span{display:block}.stat-grid strong{font-size:1.35rem}.stat-grid span{color:var(--muted);margin-top:4px;font-size:.74rem}.red-text{color:var(--red)}.amber-text{color:var(--amber)}.green-text{color:var(--green)}.library-grid{border-top:1px solid var(--line);border-bottom:1px solid var(--line);grid-template-columns:repeat(3,1fr);display:grid}.library-grid>button{border:0;border-right:1px solid var(--line);cursor:pointer;text-align:left;background:0 0;grid-template-columns:44px minmax(0,1fr) 20px;align-items:center;gap:12px;min-height:92px;padding:12px 16px;display:grid}.library-grid>button:last-child{border-right:0}.library-grid>button:hover{background:var(--surface)}.library-grid>button>svg:first-child{width:24px;color:var(--blue)}.library-grid>button>svg:last-child{width:18px;color:var(--faint)}.library-grid span,.library-grid strong,.library-grid small{display:block}.library-grid strong{font-size:1.15rem}.library-grid small{color:var(--muted);margin-top:3px}.source-summary{grid-template-columns:repeat(2,1fr);gap:18px;display:grid}.source-summary button{border:1px solid var(--line);background:var(--surface);cursor:pointer;text-align:left;border-radius:6px;grid-template-columns:auto 1fr;align-items:center;gap:3px 12px;min-height:88px;padding:16px 18px;display:grid}.source-summary button:hover{border-color:#b9c7d5}.source-summary .source-badge{grid-row:1/3}.source-summary strong{font-size:1.25rem}.source-summary span:last-child{color:var(--muted);font-size:.76rem}.page-title-row{justify-content:space-between;align-items:end;margin-bottom:24px;display:flex}.page-title-row h1{margin:5px 0 0;font-size:1.55rem}.page-title-row>span{color:var(--muted);font-size:.8rem}.filter-toolbar{grid-template-columns:minmax(260px,1fr) 150px 160px;gap:10px;margin-bottom:18px;display:grid}.inline-search{border:1px solid var(--line);background:var(--surface);border-radius:6px;align-items:center;height:46px;padding:0 12px;display:flex}.inline-search>svg{width:18px;color:var(--faint);flex:0 0 18px}.inline-search input{background:0 0;border:0;outline:0;flex:1;min-width:0;height:100%;padding:0 10px}.inline-search button{cursor:pointer;background:0 0;border:0;flex:0 0 32px;place-items:center;width:32px;height:32px;padding:0;display:grid}.inline-search button svg{width:16px}.select-field{border:1px solid var(--line);background:var(--surface);border-radius:6px;flex-direction:column;justify-content:center;height:46px;padding:3px 10px;display:flex}.select-field span{color:var(--faint);font-size:.62rem;font-weight:700}.select-field select{width:100%;min-width:0;color:var(--ink);background:0 0;border:0;outline:0;padding:0;font-size:.75rem}.list-page .filter-toolbar:has(.select-field:only-child){grid-template-columns:1fr 160px}.question-table{border-top:1px solid var(--line)}.question-table>button{border:0;border-bottom:1px solid var(--line);cursor:pointer;text-align:left;background:0 0;grid-template-columns:104px minmax(0,1fr) auto 24px;align-items:center;gap:12px;width:100%;min-height:70px;padding:8px 10px;display:grid}.question-table>button:hover{background:var(--surface)}.entity-id{color:var(--blue);font-variant-numeric:tabular-nums;font-size:.74rem;font-weight:800}.question-copy{min-width:0}.question-copy strong,.question-copy small{display:block}.question-copy strong{text-overflow:ellipsis;white-space:nowrap;margin-bottom:5px;font-size:.84rem;overflow:hidden}.question-copy small{color:var(--muted);text-overflow:ellipsis;white-space:nowrap;font-size:.72rem;overflow:hidden}.question-table>button>svg{width:18px;color:var(--faint)}.load-more{border:1px solid var(--line);background:var(--surface);width:min(320px,100%);min-height:44px;color:var(--blue);cursor:pointer;border-radius:6px;margin:22px auto 0;display:block}.empty-state{min-height:260px;color:var(--muted);align-content:center;place-items:center;gap:10px;display:grid}.empty-state svg{width:28px}.empty-state button{color:var(--blue);cursor:pointer;background:0 0;border:0}.level-badge{color:#6d747d;background:#eceff2;border-radius:4px;align-items:center;min-height:24px;padding:0 8px;font-size:.7rem;font-weight:700;display:inline-flex}.level-badge.level-生疏{background:var(--red-soft);color:var(--red)}.level-badge.level-一般{background:var(--amber-soft);color:var(--amber)}.level-badge.level-熟练{background:var(--green-soft);color:var(--green)}.source-badges{align-items:center;gap:6px;display:flex}.source-badge{background:var(--blue-soft);min-height:24px;color:var(--blue);border-radius:4px;align-items:center;padding:0 8px;font-size:.68rem;font-weight:800;display:inline-flex}.source-李林880题{background:var(--green-soft);color:var(--green)}.study-layout{min-height:calc(100vh - 60px);padding-bottom:78px}.study-page{width:min(100%,880px);margin:0 auto;padding:30px 44px 72px}.back-link{min-height:36px;color:var(--muted);cursor:pointer;background:0 0;border:0;align-items:center;gap:3px;padding:0;display:flex}.back-link svg{width:17px}.study-meta{justify-content:space-between;align-items:center;gap:12px;margin-top:16px;display:flex}.study-meta>span{color:var(--blue);font-size:.74rem;font-weight:700}.study-heading h1{max-width:780px;margin:11px 0 22px;font-size:1.58rem;line-height:1.42}.mode-control{border:1px solid var(--line);background:#eceff2;border-radius:6px;grid-template-columns:1fr 1fr;width:240px;height:40px;margin-bottom:30px;padding:3px;display:grid}.mode-control button{color:var(--muted);cursor:pointer;background:0 0;border:0;border-radius:4px;font-size:.78rem;font-weight:700}.mode-control button.active{color:var(--ink);background:#fff;box-shadow:0 1px 3px #191f261a}.content-section{border-top:1px solid var(--line);padding:28px 0}.question-section{border-top:0;padding-top:0;font-size:1.05rem}.content-label{justify-content:space-between;align-items:center;margin-bottom:16px;display:flex}.content-label span{color:var(--ink);font-size:.78rem;font-weight:800}.content-label small{color:var(--faint);font-size:.7rem}.content-section p,.answer-band p,.memory-band p,.drawer-body p,.reference-markdown p{line-height:1.82}.content-section li,.drawer-body li,.reference-markdown li{margin:.45rem 0;line-height:1.7}.content-section .katex-display,.drawer-body .katex-display,.reference-markdown .katex-display{max-width:100%;padding:8px 0;overflow:auto hidden}.wiki-link{color:var(--blue);cursor:pointer;font:inherit;text-align:left;background:0 0;border:0;border-bottom:1px solid #315f9266;padding:1px 3px;display:inline}.wiki-label{color:var(--muted)}.insight-block{grid-template-columns:78px minmax(0,1fr);gap:16px;padding:12px 0;display:grid}.insight-block>strong{color:var(--blue);padding-top:3px;font-size:.76rem}.insight-block p{margin:0}.reference-row{border-left:3px solid var(--blue);background:var(--blue-soft);margin-top:14px;padding:14px 16px}.reference-row p{margin:5px 0}.reveal-row{background:var(--blue-soft);cursor:pointer;text-align:left;border:1px solid #cbd8e5;border-radius:6px;grid-template-columns:42px minmax(0,1fr) 24px;align-items:center;gap:12px;width:100%;min-height:74px;margin:14px 0;padding:8px 12px;display:grid}.reveal-row>svg:first-child{width:22px;color:var(--blue)}.reveal-row>svg:last-child{width:18px;color:var(--muted)}.reveal-row strong,.reveal-row small{display:block}.reveal-row small{color:var(--muted);margin-top:3px;font-size:.74rem}.solution-reveal{background:#edf5f0;border-color:#ccd8d1;margin-top:20px}.solution-reveal>svg:first-child{color:var(--green)}.why-section{border-top-color:#b9d1c4;margin-top:22px}.why-section .content-label span{color:var(--green)}.answer-band{border-left:4px solid var(--green);background:var(--green-soft);margin:10px 0 20px;padding:20px 22px}.answer-band>span{color:var(--green);margin-bottom:8px;font-size:.75rem;font-weight:800;display:block}.answer-band p{margin:0}.review-section .content-label span{color:var(--red)}.memory-band{background:var(--amber-soft);border:1px solid #ead8b8;border-radius:6px;grid-template-columns:32px minmax(0,1fr);gap:10px;margin-top:10px;padding:18px;display:grid}.memory-band>svg{width:20px;color:var(--amber)}.memory-band span{color:var(--amber);font-size:.74rem;font-weight:800}.memory-band p{margin:6px 0 0}.study-toolbar{z-index:15;min-height:68px;padding:9px 22px calc(9px + env(safe-area-inset-bottom));border-top:1px solid var(--line);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);background:#fffffff5;grid-template-columns:132px minmax(260px,420px) 132px;justify-content:center;gap:18px;display:grid;position:fixed;bottom:0;left:252px;right:0}.study-toolbar>button{background:var(--surface-alt);cursor:pointer;border:0;border-radius:6px;justify-content:center;align-items:center;gap:6px;min-height:48px;font-weight:700;display:flex}.study-toolbar>button svg{width:18px}.study-toolbar>button:disabled{opacity:.35;cursor:not-allowed}.level-control{border:1px solid var(--line);background:var(--surface-alt);border-radius:6px;grid-template-columns:repeat(3,1fr);gap:3px;min-width:230px;padding:3px;display:grid}.level-control button{min-height:38px;color:var(--muted);cursor:pointer;background:0 0;border:0;border-radius:4px;font-size:.78rem;font-weight:700}.level-control button.active.level-生疏{background:var(--red-soft);color:var(--red)}.level-control button.active.level-一般{background:var(--amber-soft);color:var(--amber)}.level-control button.active.level-熟练{background:var(--green-soft);color:var(--green)}.level-control.compact{width:260px;min-width:0}.reference-page{width:min(100%,880px)}.reference-heading{border-bottom:1px solid var(--line);grid-template-columns:minmax(0,1fr) auto;align-items:center;gap:18px;margin:16px 0 24px;padding-bottom:24px;display:grid}.reference-heading>div>*{margin-right:8px}.reference-heading>div strong{font-size:.82rem}.reference-heading>div small{color:var(--muted)}.reference-heading h1{grid-column:1/-1;margin:0;font-size:1.65rem;line-height:1.45}.entity-kind{background:var(--amber-soft);min-height:24px;color:var(--amber);border-radius:4px;align-items:center;padding:0 8px;font-size:.7rem;font-weight:800;display:inline-flex}.kind-method{background:var(--green-soft);color:var(--green)}.reference-markdown h2{border-top:1px solid var(--line);margin:34px 0 14px;padding-top:24px;font-size:1rem}.reference-markdown h2:first-child{border-top:0;margin-top:0;padding-top:0}.related-section{border-top:1px solid var(--line);margin-top:34px;padding-top:24px}.related-list{border-top:1px solid var(--line)}.related-list button{border:0;border-bottom:1px solid var(--line);cursor:pointer;text-align:left;background:0 0;align-items:center;width:100%;min-height:62px;padding:8px 10px;display:flex}.related-list button:hover{background:var(--surface)}.related-list span{min-width:0;margin-right:auto}.related-list strong,.related-list small{display:block}.related-list strong{color:var(--blue);font-size:.76rem}.related-list small{color:var(--muted);text-overflow:ellipsis;white-space:nowrap;margin-top:4px;overflow:hidden}.related-list svg{width:18px;color:var(--faint)}.drawer-layer,.search-layer{z-index:50;position:fixed;inset:0}.drawer-scrim,.search-scrim,.sidebar-scrim{background:#181c216b;border:0;width:100%;position:absolute;inset:0}.reference-drawer{background:var(--surface);flex-direction:column;width:min(540px,48vw);display:flex;position:absolute;top:0;bottom:0;right:0;box-shadow:-12px 0 28px #191f2629}.drawer-header{border-bottom:1px solid var(--line);align-items:center;min-height:64px;padding:0 18px 0 24px;display:flex}.drawer-header>div{margin-right:auto}.drawer-header span,.drawer-header strong{display:block}.drawer-header span{color:var(--muted);font-size:.7rem}.drawer-header strong{margin-top:2px;font-size:.85rem}.drawer-body{flex:1;padding:24px 30px 48px;overflow:auto}.drawer-body h2{margin:0 0 24px;font-size:1.25rem;line-height:1.45}.drawer-body h2:not(:first-child){border-top:1px solid var(--line);margin-top:32px;padding-top:24px;font-size:1rem}.search-panel{z-index:1;background:var(--surface);border-radius:8px;width:min(700px,100% - 32px);max-height:min(720px,100vh - 48px);margin:24px auto;position:relative;overflow:hidden;box-shadow:0 18px 50px #191f2638}.search-panel>label{border-bottom:1px solid var(--line);align-items:center;height:62px;padding:0 12px 0 20px;display:flex}.search-panel>label>svg{width:20px;color:var(--muted)}.search-panel input{border:0;outline:0;flex:1;height:100%;padding:0 12px;font-size:1rem}.search-results{max-height:640px;padding:8px;overflow:auto}.search-results>button{cursor:pointer;text-align:left;background:0 0;border:0;border-radius:5px;align-items:center;width:100%;min-height:62px;padding:8px 12px;display:flex}.search-results>button:hover{background:var(--surface-alt)}.search-results span{min-width:0;margin-right:auto}.search-results strong,.search-results small{display:block}.search-results strong{color:var(--blue);font-size:.74rem}.search-results small{color:var(--muted);text-overflow:ellipsis;white-space:nowrap;margin-top:4px;font-size:.78rem;overflow:hidden}.search-results svg{width:18px;margin-left:16px}.loading-state,.error-state{text-align:center;align-content:center;place-items:center;gap:12px;min-height:60vh;padding:24px;display:grid}.loading-state strong{color:var(--muted);font-size:.82rem}.loading-line{background:#dde2e7;border-radius:3px;width:160px;height:4px;overflow:hidden}.loading-line:after{border-radius:inherit;background:var(--blue);content:"";width:45%;height:100%;animation:1s ease-in-out infinite alternate loading;display:block}.error-state svg{width:30px;color:var(--red)}.error-state p{max-width:540px;color:var(--muted);margin:0}.error-state button{background:var(--blue);color:#fff;cursor:pointer;border:0;border-radius:6px;min-height:40px;padding:0 16px}@keyframes loading{0%{transform:translate(-10%)}to{transform:translate(135%)}}@media (width<=900px){.sidebar{transition:transform .18s;transform:translate(-102%);box-shadow:12px 0 28px #191f2629}.sidebar.sidebar-open{transform:translate(0)}.sidebar-close,.menu-button{display:grid!important}.sidebar-scrim{z-index:19;position:fixed}.main-area{margin-left:0}.study-toolbar{left:0}.page{padding-inline:28px}.study-page{padding-inline:34px}.reference-drawer{width:min(620px,70vw)}}@media (width<=700px){.filter-toolbar{grid-template-columns:1fr 1fr}.filter-toolbar .inline-search{grid-column:1/-1}.library-grid{grid-template-columns:1fr}.library-grid>button{border-right:0;border-bottom:1px solid var(--line)}.library-grid>button:last-child{border-bottom:0}}@media (width<=620px){.topbar{height:56px;padding-inline:10px}.topbar-context{min-width:0;display:block}.topbar-context strong,.topbar-context span{display:block}.topbar-context strong{font-size:.82rem}.topbar-context span{margin-top:2px;font-size:.64rem}.page{padding:22px 16px 80px}.continue-band{min-height:0;padding:22px 20px;display:block}.continue-band h1{font-size:1.25rem}.continue-band .primary-button{width:100%;margin-top:20px}.stat-grid{grid-template-columns:repeat(2,1fr)}.stat-grid button:nth-child(2){border-right:0}.stat-grid button:nth-child(n+3){border-top:1px solid var(--line)}.source-summary{grid-template-columns:1fr;gap:10px}.filter-toolbar{grid-template-columns:1fr}.filter-toolbar .inline-search{grid-column:auto}.select-field{width:100%}.question-table>button{grid-template-columns:78px minmax(0,1fr) 20px;gap:8px;min-height:72px}.question-table .level-badge{display:none}.entity-id{font-size:.66rem}.study-layout{padding-bottom:76px}.study-page{padding:20px 17px 54px}.study-heading h1{font-size:1.3rem}.study-meta{align-items:flex-start}.study-meta>span{max-width:45%}.source-badges{flex-wrap:wrap;justify-content:flex-end}.mode-control{width:100%;margin-bottom:24px}.content-section{padding:24px 0}.question-section{padding-top:0}.content-section p,.answer-band p,.memory-band p{line-height:1.75}.insight-block{display:block}.insight-block>strong{margin-bottom:7px;display:block}.study-toolbar{grid-template-columns:54px minmax(180px,1fr) 54px;gap:7px;min-height:68px;padding-inline:8px}.study-toolbar>button span{display:none}.study-toolbar>button{padding:0}.level-control{min-width:0}.level-control button{font-size:.72rem}.reference-heading{grid-template-columns:1fr}.reference-heading .level-control{width:100%}.reference-heading h1{grid-column:1;font-size:1.35rem}.reference-drawer{border-radius:8px 8px 0 0;width:100%;top:10vh;box-shadow:0 -12px 28px #191f2629}.drawer-body{padding-inline:20px}.search-panel{max-height:calc(100vh - 20px);margin-top:10px}}@media (hover:none) and (pointer:coarse){.main-nav button,.filter-row{min-height:48px}.question-table>button,.related-list button{min-height:72px}.wiki-link{padding:3px 4px}}@media (prefers-reduced-motion:reduce){*,:before,:after{scroll-behavior:auto!important;transition:none!important;animation:none!important}}