@font-face{font-display:block;font-family:KaTeX_AMS;font-style:normal;font-weight:400;src:url(/assets/KaTeX_AMS-Regular-BQhdFMY1.woff2)format("woff2"),url(/assets/KaTeX_AMS-Regular-DMm9YOAa.woff)format("woff"),url(/assets/KaTeX_AMS-Regular-DRggAlZN.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Caligraphic;font-style:normal;font-weight:700;src:url(/assets/KaTeX_Caligraphic-Bold-Dq_IR9rO.woff2)format("woff2"),url(/assets/KaTeX_Caligraphic-Bold-BEiXGLvX.woff)format("woff"),url(/assets/KaTeX_Caligraphic-Bold-ATXxdsX0.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Caligraphic;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Caligraphic-Regular-Di6jR-x-.woff2)format("woff2"),url(/assets/KaTeX_Caligraphic-Regular-CTRA-rTL.woff)format("woff"),url(/assets/KaTeX_Caligraphic-Regular-wX97UBjC.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Fraktur;font-style:normal;font-weight:700;src:url(/assets/KaTeX_Fraktur-Bold-CL6g_b3V.woff2)format("woff2"),url(/assets/KaTeX_Fraktur-Bold-BsDP51OF.woff)format("woff"),url(/assets/KaTeX_Fraktur-Bold-BdnERNNW.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Fraktur;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Fraktur-Regular-CTYiF6lA.woff2)format("woff2"),url(/assets/KaTeX_Fraktur-Regular-Dxdc4cR9.woff)format("woff"),url(/assets/KaTeX_Fraktur-Regular-CB_wures.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:normal;font-weight:700;src:url(/assets/KaTeX_Main-Bold-Cx986IdX.woff2)format("woff2"),url(/assets/KaTeX_Main-Bold-Jm3AIy58.woff)format("woff"),url(/assets/KaTeX_Main-Bold-waoOVXN0.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:italic;font-weight:700;src:url(/assets/KaTeX_Main-BoldItalic-DxDJ3AOS.woff2)format("woff2"),url(/assets/KaTeX_Main-BoldItalic-SpSLRI95.woff)format("woff"),url(/assets/KaTeX_Main-BoldItalic-DzxPMmG6.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:italic;font-weight:400;src:url(/assets/KaTeX_Main-Italic-NWA7e6Wa.woff2)format("woff2"),url(/assets/KaTeX_Main-Italic-BMLOBm91.woff)format("woff"),url(/assets/KaTeX_Main-Italic-3WenGoN9.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Main-Regular-B22Nviop.woff2)format("woff2"),url(/assets/KaTeX_Main-Regular-Dr94JaBh.woff)format("woff"),url(/assets/KaTeX_Main-Regular-ypZvNtVU.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Math;font-style:italic;font-weight:700;src:url(/assets/KaTeX_Math-BoldItalic-CZnvNsCZ.woff2)format("woff2"),url(/assets/KaTeX_Math-BoldItalic-iY-2wyZ7.woff)format("woff"),url(/assets/KaTeX_Math-BoldItalic-B3XSjfu4.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Math;font-style:italic;font-weight:400;src:url(/assets/KaTeX_Math-Italic-t53AETM-.woff2)format("woff2"),url(/assets/KaTeX_Math-Italic-DA0__PXp.woff)format("woff"),url(/assets/KaTeX_Math-Italic-flOr_0UB.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_SansSerif;font-style:normal;font-weight:700;src:url(/assets/KaTeX_SansSerif-Bold-D1sUS0GD.woff2)format("woff2"),url(/assets/KaTeX_SansSerif-Bold-DbIhKOiC.woff)format("woff"),url(/assets/KaTeX_SansSerif-Bold-CFMepnvq.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_SansSerif;font-style:italic;font-weight:400;src:url(/assets/KaTeX_SansSerif-Italic-C3H0VqGB.woff2)format("woff2"),url(/assets/KaTeX_SansSerif-Italic-DN2j7dab.woff)format("woff"),url(/assets/KaTeX_SansSerif-Italic-YYjJ1zSn.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_SansSerif;font-style:normal;font-weight:400;src:url(/assets/KaTeX_SansSerif-Regular-DDBCnlJ7.woff2)format("woff2"),url(/assets/KaTeX_SansSerif-Regular-CS6fqUqJ.woff)format("woff"),url(/assets/KaTeX_SansSerif-Regular-BNo7hRIc.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Script;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Script-Regular-D3wIWfF6.woff2)format("woff2"),url(/assets/KaTeX_Script-Regular-D5yQViql.woff)format("woff"),url(/assets/KaTeX_Script-Regular-C5JkGWo-.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size1;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Size1-Regular-mCD8mA8B.woff2)format("woff2"),url(/assets/KaTeX_Size1-Regular-C195tn64.woff)format("woff"),url(/assets/KaTeX_Size1-Regular-Dbsnue_I.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size2;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Size2-Regular-Dy4dx90m.woff2)format("woff2"),url(/assets/KaTeX_Size2-Regular-oD1tc_U0.woff)format("woff"),url(/assets/KaTeX_Size2-Regular-B7gKUWhC.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size3;font-style:normal;font-weight:400;src:url(data:font/woff2;base64,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)format("woff2"),url(/assets/KaTeX_Size3-Regular-CTq5MqoE.woff)format("woff"),url(/assets/KaTeX_Size3-Regular-DgpXs0kz.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size4;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Size4-Regular-Dl5lxZxV.woff2)format("woff2"),url(/assets/KaTeX_Size4-Regular-BF-4gkZK.woff)format("woff"),url(/assets/KaTeX_Size4-Regular-DWFBv043.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Typewriter;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Typewriter-Regular-CO6r4hn1.woff2)format("woff2"),url(/assets/KaTeX_Typewriter-Regular-C0xS9mPB.woff)format("woff"),url(/assets/KaTeX_Typewriter-Regular-D3Ib7_Hf.ttf)format("truetype")}.katex{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:"0.17.0"}.katex .katex-mathml{clip-path:inset(50%);border:0;width:1px;height:1px;padding:0;position:absolute;overflow:hidden}.katex .katex-html>.newline{display:block}.katex .base{white-space:nowrap;width:min-content;position:relative}.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;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 .vbox{flex-direction:column;align-items:baseline;display:inline-flex}.katex .hbox{width:100%}.katex .hbox,.katex .thinbox{flex-direction:row;display:inline-flex}.katex .thinbox{width:0;max-width:0}.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 .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{line-height:0;display:inline}.katex .clap,.katex .llap,.katex .rlap{width:0;position:relative}.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;width:100%;display:inline-block}.katex .hdashline{border-bottom-style:dashed;width:100%;display:inline-block}.katex .sqrt>.root{margin-left:.277778em;margin-right:-.555556em}.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:.833333em}.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:1.16667em}.katex .fontsize-ensurer.reset-size2.size4,.katex .sizing.reset-size2.size4{font-size:1.33333em}.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:1.66667em}.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:3.45667em}.katex .fontsize-ensurer.reset-size2.size11,.katex .sizing.reset-size2.size11{font-size:4.14667em}.katex .fontsize-ensurer.reset-size3.size1,.katex .sizing.reset-size3.size1{font-size:.714286em}.katex .fontsize-ensurer.reset-size3.size2,.katex .sizing.reset-size3.size2{font-size:.857143em}.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:1.14286em}.katex .fontsize-ensurer.reset-size3.size5,.katex .sizing.reset-size3.size5{font-size:1.28571em}.katex .fontsize-ensurer.reset-size3.size6,.katex .sizing.reset-size3.size6{font-size:1.42857em}.katex .fontsize-ensurer.reset-size3.size7,.katex .sizing.reset-size3.size7{font-size:1.71429em}.katex .fontsize-ensurer.reset-size3.size8,.katex .sizing.reset-size3.size8{font-size:2.05714em}.katex .fontsize-ensurer.reset-size3.size9,.katex .sizing.reset-size3.size9{font-size:2.46857em}.katex .fontsize-ensurer.reset-size3.size10,.katex .sizing.reset-size3.size10{font-size:2.96286em}.katex .fontsize-ensurer.reset-size3.size11,.katex .sizing.reset-size3.size11{font-size:3.55429em}.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:.555556em}.katex .fontsize-ensurer.reset-size5.size2,.katex .sizing.reset-size5.size2{font-size:.666667em}.katex .fontsize-ensurer.reset-size5.size3,.katex .sizing.reset-size5.size3{font-size:.777778em}.katex .fontsize-ensurer.reset-size5.size4,.katex .sizing.reset-size5.size4{font-size:.888889em}.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:1.11111em}.katex .fontsize-ensurer.reset-size5.size7,.katex .sizing.reset-size5.size7{font-size:1.33333em}.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:2.30444em}.katex .fontsize-ensurer.reset-size5.size11,.katex .sizing.reset-size5.size11{font-size:2.76444em}.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:.416667em}.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:.583333em}.katex .fontsize-ensurer.reset-size7.size4,.katex .sizing.reset-size7.size4{font-size:.666667em}.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:.833333em}.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:1.72833em}.katex .fontsize-ensurer.reset-size7.size11,.katex .sizing.reset-size7.size11{font-size:2.07333em}.katex .fontsize-ensurer.reset-size8.size1,.katex .sizing.reset-size8.size1{font-size:.347222em}.katex .fontsize-ensurer.reset-size8.size2,.katex .sizing.reset-size8.size2{font-size:.416667em}.katex .fontsize-ensurer.reset-size8.size3,.katex .sizing.reset-size8.size3{font-size:.486111em}.katex .fontsize-ensurer.reset-size8.size4,.katex .sizing.reset-size8.size4{font-size:.555556em}.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:.694444em}.katex .fontsize-ensurer.reset-size8.size7,.katex .sizing.reset-size8.size7{font-size:.833333em}.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:1.44028em}.katex .fontsize-ensurer.reset-size8.size11,.katex .sizing.reset-size8.size11{font-size:1.72778em}.katex .fontsize-ensurer.reset-size9.size1,.katex .sizing.reset-size9.size1{font-size:.289352em}.katex .fontsize-ensurer.reset-size9.size2,.katex .sizing.reset-size9.size2{font-size:.347222em}.katex .fontsize-ensurer.reset-size9.size3,.katex .sizing.reset-size9.size3{font-size:.405093em}.katex .fontsize-ensurer.reset-size9.size4,.katex .sizing.reset-size9.size4{font-size:.462963em}.katex .fontsize-ensurer.reset-size9.size5,.katex .sizing.reset-size9.size5{font-size:.520833em}.katex .fontsize-ensurer.reset-size9.size6,.katex .sizing.reset-size9.size6{font-size:.578704em}.katex .fontsize-ensurer.reset-size9.size7,.katex .sizing.reset-size9.size7{font-size:.694444em}.katex .fontsize-ensurer.reset-size9.size8,.katex .sizing.reset-size9.size8{font-size:.833333em}.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:1.20023em}.katex .fontsize-ensurer.reset-size9.size11,.katex .sizing.reset-size9.size11{font-size:1.43981em}.katex .fontsize-ensurer.reset-size10.size1,.katex .sizing.reset-size10.size1{font-size:.24108em}.katex .fontsize-ensurer.reset-size10.size2,.katex .sizing.reset-size10.size2{font-size:.289296em}.katex .fontsize-ensurer.reset-size10.size3,.katex .sizing.reset-size10.size3{font-size:.337512em}.katex .fontsize-ensurer.reset-size10.size4,.katex .sizing.reset-size10.size4{font-size:.385728em}.katex .fontsize-ensurer.reset-size10.size5,.katex .sizing.reset-size10.size5{font-size:.433944em}.katex .fontsize-ensurer.reset-size10.size6,.katex .sizing.reset-size10.size6{font-size:.48216em}.katex .fontsize-ensurer.reset-size10.size7,.katex .sizing.reset-size10.size7{font-size:.578592em}.katex .fontsize-ensurer.reset-size10.size8,.katex .sizing.reset-size10.size8{font-size:.694311em}.katex .fontsize-ensurer.reset-size10.size9,.katex .sizing.reset-size10.size9{font-size:.833173em}.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:1.19961em}.katex .fontsize-ensurer.reset-size11.size1,.katex .sizing.reset-size11.size1{font-size:.200965em}.katex .fontsize-ensurer.reset-size11.size2,.katex .sizing.reset-size11.size2{font-size:.241158em}.katex .fontsize-ensurer.reset-size11.size3,.katex .sizing.reset-size11.size3{font-size:.281351em}.katex .fontsize-ensurer.reset-size11.size4,.katex .sizing.reset-size11.size4{font-size:.321543em}.katex .fontsize-ensurer.reset-size11.size5,.katex .sizing.reset-size11.size5{font-size:.361736em}.katex .fontsize-ensurer.reset-size11.size6,.katex .sizing.reset-size11.size6{font-size:.401929em}.katex .fontsize-ensurer.reset-size11.size7,.katex .sizing.reset-size11.size7{font-size:.482315em}.katex .fontsize-ensurer.reset-size11.size8,.katex .sizing.reset-size11.size8{font-size:.578778em}.katex .fontsize-ensurer.reset-size11.size9,.katex .sizing.reset-size11.size9{font-size:.694534em}.katex .fontsize-ensurer.reset-size11.size10,.katex .sizing.reset-size11.size10{font-size:.833601em}.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{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 .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{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 .stretchy{width:100%;display:block;position:relative;overflow:hidden}.katex .stretchy:after,.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 .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>.tag{position:absolute;right:0}.katex-display.leqno>.katex>.katex-html>.tag{left:0;right:auto}.katex-display.fleqn>.katex{text-align:left;padding-left:2em}body{counter-reset:katexEqnNo mmlEqnNo}:root{--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light;color:#1f2a2d;font-synthesis:none;text-rendering:optimizelegibility;-webkit-font-smoothing:antialiased;--panel:#fff;--panel-soft:#fafbf8;--ink:#1f2a2d;--muted:#667275;--line:#dde4df;--line-strong:#c8d2cc;--green:#1f6b55;--green-strong:#174f40;--amber:#9b6416;--rose:#a43e4a;--blue:#2d6387;--shadow:0 12px 32px #1f2a2d12;--shadow-soft:0 1px 0 #1f2a2d0a;background:#f3f5f2;font-family:Inter,Microsoft YaHei,PingFang SC,Noto Sans SC,system-ui,sans-serif;line-height:1.5}*{box-sizing:border-box}body{background:linear-gradient(180deg, #ffffffb8 0%, #f3f5f200 320px), var(--panel-soft);min-width:320px;margin:0}button,input,select,textarea{font:inherit}button,a{-webkit-tap-highlight-color:transparent}a{color:inherit;text-decoration:none}button:disabled{cursor:not-allowed;opacity:.55}.auth-shell,.calendar-shell,.task-shell,.wrongbook-shell{min-height:100vh;padding:22px}.auth-shell{place-items:center;display:grid}.auth-card{background:var(--panel);border:1px solid var(--line);width:min(100%,520px);box-shadow:var(--shadow);border-radius:10px;gap:22px;padding:32px;display:grid}.auth-card h1{letter-spacing:0;margin:0;font-size:clamp(28px,4vw,40px);line-height:1.15}.auth-card p{color:var(--muted);margin:8px 0 0}.auth-form{gap:14px;display:grid}.auth-form label{color:var(--muted);gap:8px;font-weight:800;display:grid}.auth-error{color:#8f2333;background:#fff0f2;border:1px solid #f0c4ca;border-radius:8px;padding:10px 12px}.auth-wait{color:#6c4613;background:#fff8e9;border:1px solid #ead8b8;border-radius:8px;padding:10px 12px}.auth-demo{color:var(--muted);border:1px solid var(--line);background:#f8faf8;border-radius:8px;gap:5px;padding:12px;display:grid}.calendar-shell,.wrongbook-shell{gap:18px;display:grid}.task-shell{grid-template-columns:minmax(0,1fr) 310px;gap:18px;display:grid}.filing-footer{width:100%;color:var(--muted);justify-content:center;align-items:center;padding:8px 0 2px;font-size:12px;font-weight:600;display:flex}.filing-footer a{color:inherit}.filing-footer a:hover{color:var(--green-strong);text-decoration:underline}.auth-shell .filing-footer{align-self:end}.task-shell .filing-footer{grid-column:1/-1}.home-grid,.home-layout,.home-main,.home-sidebar,.calendar-board,.today-card,.metric-stack,.user-card,.quote-card,.countdown-card,.review-board,.brand-block,.task-header,.reading-view,.problem-view,.message-view,.empty-state,.checkin-popover,.progress-panel,.notice-panel{background:var(--panel);border:1px solid var(--line);box-shadow:var(--shadow);border-radius:8px}.home-layout{box-shadow:none;background:0 0;border:0;grid-template-columns:minmax(0,1fr) 336px;align-items:start;gap:20px;display:grid}.home-main,.home-sidebar{box-shadow:none;background:0 0;border:0;gap:20px;display:grid}.home-sidebar{position:sticky;top:18px}.home-grid{grid-template-columns:minmax(0,1.45fr) 260px minmax(280px,.82fr);gap:16px;display:grid}.today-card,.metric-stack,.user-card,.quote-card,.countdown-card,.review-board{padding:24px}.today-card{border-left:5px solid var(--green);align-content:center;gap:18px;min-height:238px;display:grid}.today-card h1{letter-spacing:0;max-width:760px;margin:0;font-size:clamp(30px,3.6vw,42px);line-height:1.14}.today-card p,.calendar-toolbar p,.user-card p,.quote-card p,.countdown-card p,.review-card p{color:var(--muted);margin:0}.home-actions{flex-wrap:wrap;align-items:center;gap:12px;padding-top:4px;display:flex}.task-date{color:var(--muted);font-weight:700}.metric-stack{align-content:stretch;padding:0;display:grid;overflow:hidden}.metric-stack>div{border-bottom:1px solid var(--line);align-content:center;min-height:96px;padding:18px 22px;display:grid}.metric-stack>div:last-child{border-bottom:0}.metric-stack strong{font-size:34px;line-height:1.05}.user-card{align-content:flex-start;gap:16px;display:grid}.user-card-head{align-items:center;gap:12px;display:flex}.avatar{color:#fff;background:var(--blue);border-radius:999px;place-items:center;width:42px;height:42px;font-weight:900;display:grid}.user-card h2,.quote-card h2,.countdown-card h2,.review-board h2{letter-spacing:0;margin:0}.license-row{background:#fbfaf4;border:1px solid #e0d6c5;border-radius:8px;justify-content:space-between;align-items:center;gap:12px;min-height:48px;padding:10px 12px;display:flex}.license-row span{color:var(--green-strong);background:#d9f0e8;border-radius:999px;padding:4px 9px;font-size:12px;font-weight:800}.brand-block{align-items:center;gap:12px;padding:16px;display:flex}.compact-brand{box-shadow:none}.brand-mark{color:#fff;background:var(--green);border-radius:8px;place-items:center;width:42px;height:42px;font-weight:800;display:grid}.brand-block h1,.task-header h2,.calendar-toolbar h2,.section-heading h3{letter-spacing:0;margin:0}.brand-block h1{font-size:18px}.eyebrow{color:var(--muted);margin:0 0 4px;font-size:12px;font-weight:700}.plan-summary{gap:8px;display:grid}.plan-summary strong{font-size:26px}.plan-summary p{color:var(--muted);margin:0}.calendar-board{padding:22px}.dashboard-grid{grid-template-columns:minmax(0,1fr) 360px;gap:18px;display:grid}.calendar-toolbar{justify-content:space-between;align-items:flex-start;gap:16px;margin-bottom:18px;display:flex}.calendar-toolbar h2{font-size:25px}.calendar-stats,.task-meta,.action-row,.problem-tools,.tag-row,.submit-row,.popover-actions{flex-wrap:wrap;gap:8px;display:flex}.calendar-stats span,.task-meta span,.status-pill,.difficulty{min-height:30px;color:var(--green-strong);background:#e8f3ee;border-radius:999px;align-items:center;gap:6px;padding:5px 10px;font-size:13px;font-weight:700;display:inline-flex}.calendar-weekdays,.calendar-grid{grid-template-columns:repeat(7,minmax(0,1fr));gap:8px;display:grid}.calendar-weekdays{margin:16px 0 8px}.calendar-weekdays span{color:var(--muted);text-align:center;font-size:12px;font-weight:800}.calendar-day{min-height:104px;color:var(--ink);text-align:left;border:1px solid var(--line);cursor:pointer;box-shadow:var(--shadow-soft);background:#fff;border-radius:8px;gap:5px;padding:10px;display:grid}.calendar-blank{min-height:104px}.calendar-day:hover,.calendar-day.selected{border-color:var(--green);transform:translateY(-1px);box-shadow:0 10px 26px #1f6b551a}.calendar-day.today{outline-offset:-3px;outline:2px solid #8fd1c0}.calendar-day.no-task{color:#9ca6a7;box-shadow:none;background:#f7f8f5}.calendar-day.no-task:hover{border-color:var(--line)}.calendar-day.has-task{background:#fff}.calendar-day.done{background:#eff7f3}.day-date{font-size:15px;font-weight:800}.day-weekday,.calendar-day small{color:var(--muted)}.calendar-day small{overflow-wrap:anywhere;min-height:34px;font-size:12px}.calendar-day em{width:fit-content;color:var(--muted);background:#eef2ef;border-radius:999px;padding:3px 8px;font-size:12px;font-style:normal;font-weight:700}.calendar-day.done em{color:#fff;background:var(--green)}.year-calendar-scroll{scroll-snap-type:y proximity;gap:20px;max-height:760px;padding:2px 8px 2px 2px;display:grid;overflow-y:auto}.month-panel{scroll-snap-align:start;min-height:610px;padding:2px}.month-panel h3{color:var(--green-strong);margin:0;font-size:22px}.month-grid{align-items:stretch}.home-side{align-content:start;gap:18px;display:grid}.quote-card{gap:14px;display:grid}.quote-card h2{font-size:22px;line-height:1.35}.countdown-card{gap:16px;display:grid}.countdown-card label{color:var(--muted);gap:7px;font-weight:700;display:grid}.countdown-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:10px;display:grid}.countdown-grid div{border:1px solid var(--line);background:#fbfcfb;border-radius:8px;min-height:82px;padding:14px}.countdown-grid strong{font-size:34px;line-height:1.05;display:block}.countdown-grid span{color:var(--muted)}.review-board{gap:14px;display:grid}.review-grid{grid-template-columns:repeat(5,minmax(0,1fr));gap:12px;display:grid}.review-card{border:1px solid var(--line);box-shadow:var(--shadow-soft);background:#fff;border-radius:8px;gap:10px;padding:14px;display:grid}.review-card span{color:#6c4613;background:#fff4df;border-radius:999px;width:fit-content;padding:4px 9px;font-size:12px;font-weight:800}.review-card h3{margin:0;font-size:16px}.review-card strong{color:var(--ink);font-size:13px}.review-card.wide{grid-template-columns:minmax(150px,.7fr) minmax(200px,1fr) minmax(0,2fr) auto;align-items:center}.wrongbook-list{gap:12px;display:grid}.wrongbook-summary{grid-template-columns:repeat(4,minmax(0,1fr));gap:12px;display:grid}.wrongbook-summary div{background:var(--panel);border:1px solid var(--line);min-height:96px;box-shadow:var(--shadow-soft);border-radius:8px;padding:18px}.wrongbook-summary span{color:var(--muted);font-size:13px;font-weight:800;display:block}.wrongbook-summary strong{margin-top:8px;font-size:34px;line-height:1;display:block}.wrongbook-toolbar,.wrongbook-button-row,.wrongbook-answer-row{flex-wrap:wrap;align-items:center;gap:10px;display:flex}.filter-chip{min-height:34px;color:var(--muted);border:1px solid var(--line);cursor:pointer;background:#f7f8f5;border-radius:999px;padding:0 13px;font-weight:800}.filter-chip.active{color:#fff;background:var(--ink);border-color:var(--ink)}.wrongbook-card{border:1px solid var(--line);box-shadow:var(--shadow-soft);background:#fff;border-radius:8px;grid-template-columns:minmax(0,1fr) minmax(300px,360px);gap:18px;padding:18px;display:grid}.wrongbook-card-main,.wrongbook-actions{gap:12px;min-width:0;display:grid}.wrongbook-card-meta{flex-wrap:wrap;gap:8px;display:flex}.wrongbook-card-meta span{color:#315168;background:#edf4f7;border-radius:999px;width:fit-content;padding:4px 9px;font-size:12px;font-weight:800}.wrongbook-card h3,.wrongbook-card p,.solution-details p{margin:0}.wrongbook-card h3{font-size:18px}.wrongbook-card p,.solution-details p{color:var(--muted)}.solution-details{border:1px solid var(--line);background:#f8faf8;border-radius:8px;padding:11px 12px}.solution-details summary{color:var(--ink);cursor:pointer;font-weight:900}.solution-details p{margin-top:9px}.wrongbook-actions label{color:var(--ink);gap:8px;font-weight:900;display:grid}.wrongbook-actions textarea{resize:vertical;min-height:116px}.empty-review{color:var(--muted);border:1px solid var(--line);background:#f8faf8;border-radius:8px;padding:18px}.task-page,.task-insights{flex-direction:column;gap:14px;min-width:0;display:flex}.task-header{justify-content:space-between;gap:16px;padding:22px;display:flex}.task-header h2{font-size:clamp(22px,3vw,30px)}.task-header p{max-width:760px;color:var(--muted);margin:8px 0 0}.task-actions{align-content:flex-start;justify-items:end;gap:10px;min-width:180px;display:grid}.back-button,.reset-button,.icon-button,.tool-button,.tab,.primary-button{cursor:pointer;border-radius:8px;justify-content:center;align-items:center;gap:7px;min-height:38px;display:inline-flex}.back-button,.reset-button,.icon-button,.tool-button,.ghost-button{cursor:pointer;min-height:38px;color:var(--ink);border:1px solid var(--line);background:#f8faf8;border-radius:8px;justify-content:center;align-items:center;gap:7px;padding:0 11px;display:inline-flex}.back-button{margin-bottom:10px}.reset-button{color:var(--muted)}.icon-button:hover,.tool-button:hover,.back-button:hover,.reset-button:hover,.ghost-button:hover{border-color:var(--green)}.primary-button{color:#fff;background:var(--green);border:1px solid var(--green);width:fit-content;padding:0 16px;font-weight:800}.primary-button:hover{background:var(--green-strong)}.primary-button.completed{background:var(--blue);border-color:var(--blue)}.tabs{border:1px solid var(--line);background:#ffffffd1;border-radius:8px;gap:8px;padding:5px;display:flex;overflow-x:auto}.tab{min-width:76px;color:var(--muted);background:0 0;border:1px solid #0000;flex:1 0 auto}.tab.active{color:var(--green-strong);background:#e8f3ee;border-color:#cfe2d8}.content-area{min-height:590px}.reading-view,.problem-view,.message-view,.empty-state{padding:24px}.section-heading{justify-content:space-between;align-items:flex-start;gap:16px;margin-bottom:16px;display:flex}.section-heading.compact{align-items:center;margin-bottom:12px}.section-heading h3{font-size:22px}.reading-scroll{max-height:610px;padding-right:8px;overflow-y:auto}.summary{color:#354346;max-width:850px;margin:0 0 18px;font-size:17px}.checkpoint-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;display:grid}.checkpoint{border:1px solid var(--line);background:#f8faf8;border-radius:8px;gap:10px;min-height:70px;padding:13px;display:flex}.checkpoint svg{color:var(--green);flex:none}.lecture-body{gap:12px;margin-top:18px;display:grid}.lecture-body section,.figure-placeholder,.solution-panel,.message-item{border:1px solid var(--line);background:#f8faf8;border-radius:8px;padding:14px}.lecture-body h4{margin:0 0 8px;font-size:18px}.lecture-body h5{margin:10px 0 8px;font-size:16px}.lecture-body p,.figure-placeholder p{white-space:pre-wrap;margin:0 0 8px}.lecture-body ul,.lecture-body ol{margin:0 0 10px;padding-left:22px}.lecture-body li{margin:4px 0}.lecture-body a{color:var(--blue);text-underline-offset:3px;font-weight:700;text-decoration:underline}.inline-math{color:#194a61;background:#eef6f7;border-radius:4px;padding:1px 4px;font-family:Times New Roman,serif}.math-block{border:1px solid var(--line);background:#f4f8f6;border-radius:8px;margin:8px 0 12px;padding:12px;font-family:Times New Roman,serif;font-size:17px;line-height:1.7;overflow-x:auto}.markdown-table{margin:8px 0 12px;overflow-x:auto}.markdown-table table{border-collapse:collapse;background:var(--panel);width:100%}.markdown-table th,.markdown-table td{text-align:left;border:1px solid var(--line);padding:10px}.markdown-table th{background:#eef6f1}.lecture-body p:last-child,.figure-placeholder p:last-child{margin-bottom:0}.source-path{color:var(--muted);overflow-wrap:anywhere;margin:18px 0 0;font-size:13px}.video-view{gap:18px;padding:24px;display:grid}.video-view .section-heading p{color:var(--muted);overflow-wrap:anywhere;margin:6px 0 0}.video-player{border:1px solid var(--line);background:#111;border-radius:8px;width:100%;min-height:360px;max-height:620px}.video-launch{text-align:center;border:1px solid var(--line);background:#f8faf8;border-radius:8px;place-items:center;min-height:360px;padding:28px;display:grid}.video-launch svg{color:var(--blue)}.video-launch p{max-width:460px;color:var(--muted);margin:8px 0 16px}.empty-state{text-align:center;place-items:center;min-height:420px;display:grid}.empty-state svg{color:var(--blue)}.empty-state h3,.empty-state p{margin:0}.empty-state p{max-width:460px;color:var(--muted)}.problem-list{gap:14px;display:grid}.problem-intro{margin-bottom:16px}.homework-view{padding:24px}.homework-grid{grid-template-columns:minmax(0,1fr) 320px;gap:16px;display:grid}.homework-main,.homework-side section{border:1px solid var(--line);background:#fbfcfb;border-radius:8px;padding:14px}.homework-main .lecture-body{margin-top:0}.homework-main .problem-view{padding:0}.homework-side{align-content:start;gap:12px;display:grid}.homework-side h4{margin:0 0 10px;font-size:16px}.homework-side p{margin:0}.muted-text{color:var(--muted)}.problem-card{border:1px solid var(--line);background:#fbfcfb;border-radius:8px;padding:17px}.problem-card header{justify-content:space-between;align-items:flex-start;gap:12px;display:flex}.problem-card h4{margin:0;font-size:18px}.difficulty{color:#6c4613;background:#fff4df;flex:none}.stem{margin:15px 0;font-size:17px}.stem p{margin:0 0 8px}.stem p:last-child{margin-bottom:0}.options-grid{grid-template-columns:repeat(5,minmax(90px,1fr));gap:8px;display:grid}.answer-option{min-height:42px;color:var(--ink);text-align:left;background:var(--panel);border:1px solid var(--line);cursor:pointer;overflow-wrap:anywhere;border-radius:8px;padding:8px 10px}.answer-option:hover,.answer-option.selected{border-color:var(--green);background:#eff7f3}.answer-option.correct{color:var(--green-strong);border-color:var(--green);background:#e2f2ea}.answer-option.wrong{color:#8f2333;border-color:var(--rose);background:#fff0f2}.submit-row{align-items:center;margin:14px 0}.answer-result{border-radius:8px;min-height:34px;padding:6px 10px;font-weight:800}.answer-result.correct{color:var(--green-strong);background:#e2f2ea}.answer-result.wrong{color:#8f2333;background:#fff0f2}.solution-panel{margin-bottom:12px}.solution-toggle{width:fit-content;margin-bottom:10px}.solution-panel p{margin:6px 0 0}.tag-row span{color:#4c585a;background:#eef2ef;border-radius:999px;padding:4px 9px;font-size:12px}.tool-button.active{color:#fff;background:var(--green);border-color:var(--green)}.tool-button.danger.active{background:var(--rose);border-color:var(--rose)}.select-inline{color:var(--muted);align-items:center;gap:8px;display:inline-flex}select,input,textarea{color:var(--ink);border:1px solid var(--line);background:#fff;border-radius:8px}select,input{min-height:38px;padding:0 10px}textarea{resize:vertical;width:100%;min-height:96px;padding:10px 12px}.note-box,.message-form,.form-grid label{color:var(--muted);gap:8px;font-weight:700;display:grid}.note-box{margin-top:14px}.ask-hint{color:var(--amber);align-items:center;gap:8px;margin:10px 0 0;display:flex}.message-view{gap:18px;display:grid}.message-form,.message-list{gap:12px;display:grid}.form-note{color:var(--green-strong);margin:0;font-size:13px;font-weight:700}.form-helper{color:var(--muted);margin:-4px 0 0;font-size:12px;font-weight:600}.message-item p,.message-item blockquote{margin:0 0 8px}.message-item small{color:var(--muted)}blockquote{color:#3f5550;border-left:3px solid var(--green);padding-left:12px}blockquote small{color:var(--muted);margin-top:8px;display:block}.checkin-popover{padding:14px}.form-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;display:grid}.popover-actions{justify-content:space-between;align-items:center;margin-top:12px}.popover-actions small{color:var(--muted)}.progress-panel,.notice-panel{padding:18px}.progress-panel h3{font-size:30px}.progress-track{background:#e4eae6;border-radius:999px;height:10px;overflow:hidden}.progress-track span{background:var(--green);border-radius:inherit;height:100%;display:block}.progress-panel p,.notice-panel p{color:var(--muted);margin:12px 0 0}.stat-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;display:grid}.stat-grid div,.stat-grid button{min-height:86px;color:inherit;text-align:left;background:var(--panel);border:1px solid var(--line);box-shadow:var(--shadow);border-radius:8px;padding:16px}.stat-grid button{cursor:pointer}.stat-grid button:hover{background:#f7fbfa;border-color:#2d668e59}.stat-grid strong{font-size:27px;display:block}.stat-grid span{color:var(--muted)}.notice-panel{align-items:flex-start;gap:10px;display:flex}.notice-panel svg{color:var(--amber);flex:none}.notice-panel.sync-syncing{background:#f2f7fb;border-color:#2d668e47}.notice-panel.sync-syncing svg{color:#2d668e}.notice-panel.sync-synced{background:#f1f8f3;border-color:#387e5a47}.notice-panel.sync-synced svg{color:#387e5a}.notice-panel.sync-failed{background:#fff4f5;border-color:#aa3a4b59}.notice-panel.sync-failed svg,.notice-panel.sync-failed p{color:#963047}@media (width<=1120px){.home-grid,.home-layout,.dashboard-grid,.task-shell,.wrongbook-card{grid-template-columns:1fr}.home-sidebar{position:static}.task-insights{grid-template-columns:repeat(3,minmax(0,1fr));display:grid}.stat-grid{grid-template-columns:repeat(4,minmax(0,1fr))}}@media (width<=860px){.calendar-shell,.task-shell,.wrongbook-shell{padding:12px}.calendar-toolbar,.task-header,.section-heading,.problem-card header{flex-direction:column}.today-card{min-height:auto}.metric-stack{grid-template-columns:1fr}.task-actions{justify-items:start}.calendar-weekdays{display:none}.calendar-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.checkpoint-grid,.form-grid,.task-insights,.stat-grid,.review-grid,.review-card.wide,.wrongbook-summary{grid-template-columns:1fr}.options-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.reading-scroll{max-height:none}}@media (width<=560px){.calendar-grid,.options-grid{grid-template-columns:1fr}.reading-view,.problem-view,.message-view,.empty-state{padding:16px}}.admin-page{min-height:100vh;color:var(--ink);background:linear-gradient(180deg, #f5f2e9c7, #f0f6f4cc), var(--bg)}.admin-shell{width:min(1440px,100% - 32px);margin:0 auto;padding:28px 0 40px}.admin-page .filing-footer{padding-bottom:20px}.admin-header,.record-heading,.admin-token-form,.admin-layout,.admin-search,.export-actions{display:flex}.admin-header,.record-heading{justify-content:space-between;align-items:flex-start;gap:20px;margin-bottom:18px}.admin-header h1,.record-heading h2{margin:4px 0 8px;font-size:34px;line-height:1.1}.admin-header p,.record-heading p{color:var(--muted);margin:0}.admin-token-form{border:1px solid var(--line);background:#ffffffc7;border-radius:8px;align-items:flex-end;gap:12px;margin-bottom:14px;padding:16px}.admin-import-card{border:1px solid var(--line);background:#ffffffc7;border-radius:8px;grid-template-columns:1.15fr repeat(4,minmax(150px,1fr)) auto;align-items:end;gap:12px;margin-bottom:14px;padding:16px;display:grid}.admin-import-card h2,.admin-import-card p{margin:0}.admin-import-card p:last-child{color:var(--muted);margin-top:6px}.admin-token-form label,.admin-import-card label{color:var(--muted);flex:1;font-size:13px;font-weight:700}.admin-token-form input,.admin-import-card input,.admin-search input{width:100%;color:var(--ink);background:var(--panel);border:1px solid var(--line);border-radius:8px;outline:none;margin-top:6px;padding:11px 12px}.admin-notice{color:#7b341e;background:#fff4e5;border:1px solid #be692d40;border-radius:8px;margin:0 0 14px;padding:12px 14px}.admin-layout{align-items:flex-start;gap:18px}.admin-sidebar,.student-record{border:1px solid var(--line);background:#ffffffdb;border-radius:8px;box-shadow:0 18px 45px #31414614}.admin-sidebar{width:320px;padding:14px;position:sticky;top:16px}.admin-search{color:var(--muted);align-items:center;gap:8px;padding:0 0 12px}.admin-search input{margin-top:0}.student-list{gap:8px;max-height:66vh;display:grid;overflow:auto}.student-row{width:100%;color:inherit;text-align:left;background:var(--panel);border:1px solid var(--line);cursor:pointer;border-radius:8px;padding:13px}.student-row.active,.student-row:hover{background:#f4fbf9;border-color:#2d668e73}.student-row strong,.student-row span,.student-row small{display:block}.student-row span,.student-row small{color:var(--muted);margin-top:4px}.student-record{flex:1;min-width:0;padding:18px}.student-record.placeholder{min-height:360px;color:var(--muted);text-align:center;place-items:center;display:grid}.export-actions{flex-wrap:wrap;justify-content:flex-end;gap:8px}.export-actions button{color:var(--ink);background:var(--panel);border:1px solid var(--line);cursor:pointer;border-radius:8px;align-items:center;gap:6px;padding:9px 11px;display:inline-flex}.export-actions button:hover{border-color:#2d668e73}.admin-metrics{grid-template-columns:repeat(5,minmax(0,1fr));gap:10px;margin-bottom:18px;display:grid}.admin-metrics article{border:1px solid var(--line);background:#f8faf7;border-radius:8px;min-height:94px;padding:14px}.admin-metrics span{color:var(--muted);margin:8px 0 4px;font-size:13px;display:block}.admin-metrics strong{font-size:28px}.record-section{margin-top:18px}.record-section.two-column{grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:16px;display:grid}.section-heading.compact{justify-content:space-between;align-items:baseline;gap:12px;margin-bottom:10px;display:flex}.section-heading.compact h3{margin:0;font-size:18px}.section-heading.compact span{color:var(--muted);font-size:13px}.admin-table{border:1px solid var(--line);border-radius:8px;overflow:auto}.admin-table table{border-collapse:collapse;background:var(--panel);width:100%;min-width:720px}.admin-table th,.admin-table td{text-align:left;border-bottom:1px solid var(--line);padding:11px 12px}.admin-table th{color:var(--muted);background:#f8faf7;font-size:12px}.record-feed{gap:10px;display:grid}.record-feed-item{background:var(--panel);border:1px solid var(--line);border-radius:8px;padding:13px}.record-feed-item strong,.record-feed-item small,.record-feed-item em{display:block}.record-feed-item p{color:var(--ink);-webkit-line-clamp:2;-webkit-box-orient:vertical;margin:8px 0;display:-webkit-box;overflow:hidden}.record-feed-item small{color:var(--muted)}.record-feed-item em{color:var(--green-strong);margin-top:8px;font-style:normal}.admin-empty{color:var(--muted);text-align:center;border:1px dashed var(--line);background:#f8faf7;border-radius:8px;padding:18px}@media (width<=980px){.admin-layout,.record-section.two-column,.record-heading,.admin-token-form,.admin-import-card{grid-template-columns:1fr;display:grid}.admin-sidebar{width:auto;position:static}.student-list{max-height:320px}.admin-metrics{grid-template-columns:repeat(2,minmax(0,1fr))}}@media (width<=560px){.admin-shell{width:min(100% - 20px,1440px);padding-top:16px}.admin-header{grid-template-columns:1fr;display:grid}.admin-header h1,.record-heading h2{font-size:28px}.admin-metrics{grid-template-columns:1fr}}
