@charset "UTF-8";@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{font: 1.21em KaTeX_Main,Times New Roman,serif;line-height:1.2;position:relative;text-indent:0;text-rendering:auto}.katex *{-ms-high-contrast-adjust:none!important;border-color:currentColor}.katex .katex-version:after{content:"0.16.47"}.katex .katex-mathml{border:0;-webkit-clip-path:inset(50%);clip-path:inset(50%);height:1px;overflow:hidden;padding:0;position:absolute;width:1px}.katex .katex-html>.newline{display:block}.katex .base{position:relative;white-space:nowrap;width:-webkit-min-content;width:-moz-min-content;width:min-content}.katex .base,.katex .strut{display:inline-block}.katex .textbf{font-weight:700}.katex .textit{font-style:italic}.katex .textrm{font-family:KaTeX_Main}.katex .textsf{font-family:KaTeX_SansSerif}.katex .texttt{font-family:KaTeX_Typewriter}.katex .mathnormal{font-family:KaTeX_Math;font-style:italic}.katex .mathit{font-family:KaTeX_Main;font-style:italic}.katex .mathrm{font-style:normal}.katex .mathbf{font-family:KaTeX_Main;font-weight:700}.katex .boldsymbol{font-family:KaTeX_Math;font-style:italic;font-weight:700}.katex .amsrm,.katex .mathbb,.katex .textbb{font-family:KaTeX_AMS}.katex .mathcal{font-family:KaTeX_Caligraphic}.katex .mathfrak,.katex .textfrak{font-family:KaTeX_Fraktur}.katex .mathboldfrak,.katex .textboldfrak{font-family:KaTeX_Fraktur;font-weight:700}.katex .mathtt{font-family:KaTeX_Typewriter}.katex .mathscr,.katex .textscr{font-family:KaTeX_Script}.katex .mathsf,.katex .textsf{font-family:KaTeX_SansSerif}.katex .mathboldsf,.katex .textboldsf{font-family:KaTeX_SansSerif;font-weight:700}.katex .mathitsf,.katex .mathsfit,.katex .textitsf{font-family:KaTeX_SansSerif;font-style:italic}.katex .mainrm{font-family:KaTeX_Main;font-style:normal}.katex .vlist-t{border-collapse:collapse;display:inline-table;table-layout:fixed}.katex .vlist-r{display:table-row}.katex .vlist{display:table-cell;position:relative;vertical-align:bottom}.katex .vlist>span{display:block;height:0;position:relative}.katex .vlist>span>span{display:inline-block}.katex .vlist>span>.pstrut{overflow:hidden;width:0}.katex .vlist-t2{margin-right:-2px}.katex .vlist-s{display:table-cell;font-size:1px;min-width:2px;vertical-align:bottom;width:2px}.katex .vbox{align-items:baseline;display:inline-flex;flex-direction:column}.katex .hbox{width:100%}.katex .hbox,.katex .thinbox{display:inline-flex;flex-direction:row}.katex .thinbox{max-width:0;width:0}.katex .msupsub{text-align:left}.katex .mfrac>span>span{text-align:center}.katex .mfrac .frac-line{border-bottom-style:solid;display:inline-block;width:100%}.katex .hdashline,.katex .hline,.katex .mfrac .frac-line,.katex .overline .overline-line,.katex .rule,.katex .underline .underline-line{min-height:1px}.katex .mspace{display:inline-block}.katex .smash{display:inline;line-height:0}.katex .clap,.katex .llap,.katex .rlap{position:relative;width:0}.katex .clap>.inner,.katex .llap>.inner,.katex .rlap>.inner{position:absolute}.katex .clap>.fix,.katex .llap>.fix,.katex .rlap>.fix{display:inline-block}.katex .llap>.inner{right:0}.katex .clap>.inner,.katex .rlap>.inner{left:0}.katex .clap>.inner>span{margin-left:-50%;margin-right:50%}.katex .rule{border:0 solid;display:inline-block;position:relative}.katex .hline,.katex .overline .overline-line,.katex .underline .underline-line{border-bottom-style:solid;display:inline-block;width:100%}.katex .hdashline{border-bottom-style:dashed;display:inline-block;width:100%}.katex .sqrt>.root{margin-left:.2777777778em;margin-right:-.5555555556em}.katex .fontsize-ensurer.reset-size1.size1,.katex .sizing.reset-size1.size1{font-size:1em}.katex .fontsize-ensurer.reset-size1.size2,.katex .sizing.reset-size1.size2{font-size:1.2em}.katex .fontsize-ensurer.reset-size1.size3,.katex .sizing.reset-size1.size3{font-size:1.4em}.katex .fontsize-ensurer.reset-size1.size4,.katex .sizing.reset-size1.size4{font-size:1.6em}.katex .fontsize-ensurer.reset-size1.size5,.katex .sizing.reset-size1.size5{font-size:1.8em}.katex .fontsize-ensurer.reset-size1.size6,.katex .sizing.reset-size1.size6{font-size:2em}.katex .fontsize-ensurer.reset-size1.size7,.katex .sizing.reset-size1.size7{font-size:2.4em}.katex .fontsize-ensurer.reset-size1.size8,.katex .sizing.reset-size1.size8{font-size:2.88em}.katex .fontsize-ensurer.reset-size1.size9,.katex .sizing.reset-size1.size9{font-size:3.456em}.katex .fontsize-ensurer.reset-size1.size10,.katex .sizing.reset-size1.size10{font-size:4.148em}.katex .fontsize-ensurer.reset-size1.size11,.katex .sizing.reset-size1.size11{font-size:4.976em}.katex .fontsize-ensurer.reset-size2.size1,.katex .sizing.reset-size2.size1{font-size:.8333333333em}.katex .fontsize-ensurer.reset-size2.size2,.katex .sizing.reset-size2.size2{font-size:1em}.katex .fontsize-ensurer.reset-size2.size3,.katex .sizing.reset-size2.size3{font-size:1.1666666667em}.katex .fontsize-ensurer.reset-size2.size4,.katex .sizing.reset-size2.size4{font-size:1.3333333333em}.katex .fontsize-ensurer.reset-size2.size5,.katex .sizing.reset-size2.size5{font-size:1.5em}.katex .fontsize-ensurer.reset-size2.size6,.katex .sizing.reset-size2.size6{font-size:1.6666666667em}.katex .fontsize-ensurer.reset-size2.size7,.katex .sizing.reset-size2.size7{font-size:2em}.katex .fontsize-ensurer.reset-size2.size8,.katex .sizing.reset-size2.size8{font-size:2.4em}.katex .fontsize-ensurer.reset-size2.size9,.katex .sizing.reset-size2.size9{font-size:2.88em}.katex .fontsize-ensurer.reset-size2.size10,.katex .sizing.reset-size2.size10{font-size:3.4566666667em}.katex .fontsize-ensurer.reset-size2.size11,.katex .sizing.reset-size2.size11{font-size:4.1466666667em}.katex .fontsize-ensurer.reset-size3.size1,.katex .sizing.reset-size3.size1{font-size:.7142857143em}.katex .fontsize-ensurer.reset-size3.size2,.katex .sizing.reset-size3.size2{font-size:.8571428571em}.katex .fontsize-ensurer.reset-size3.size3,.katex .sizing.reset-size3.size3{font-size:1em}.katex .fontsize-ensurer.reset-size3.size4,.katex .sizing.reset-size3.size4{font-size:1.1428571429em}.katex .fontsize-ensurer.reset-size3.size5,.katex .sizing.reset-size3.size5{font-size:1.2857142857em}.katex .fontsize-ensurer.reset-size3.size6,.katex .sizing.reset-size3.size6{font-size:1.4285714286em}.katex .fontsize-ensurer.reset-size3.size7,.katex .sizing.reset-size3.size7{font-size:1.7142857143em}.katex .fontsize-ensurer.reset-size3.size8,.katex .sizing.reset-size3.size8{font-size:2.0571428571em}.katex .fontsize-ensurer.reset-size3.size9,.katex .sizing.reset-size3.size9{font-size:2.4685714286em}.katex .fontsize-ensurer.reset-size3.size10,.katex .sizing.reset-size3.size10{font-size:2.9628571429em}.katex .fontsize-ensurer.reset-size3.size11,.katex .sizing.reset-size3.size11{font-size:3.5542857143em}.katex .fontsize-ensurer.reset-size4.size1,.katex .sizing.reset-size4.size1{font-size:.625em}.katex .fontsize-ensurer.reset-size4.size2,.katex .sizing.reset-size4.size2{font-size:.75em}.katex .fontsize-ensurer.reset-size4.size3,.katex .sizing.reset-size4.size3{font-size:.875em}.katex .fontsize-ensurer.reset-size4.size4,.katex .sizing.reset-size4.size4{font-size:1em}.katex .fontsize-ensurer.reset-size4.size5,.katex .sizing.reset-size4.size5{font-size:1.125em}.katex .fontsize-ensurer.reset-size4.size6,.katex .sizing.reset-size4.size6{font-size:1.25em}.katex .fontsize-ensurer.reset-size4.size7,.katex .sizing.reset-size4.size7{font-size:1.5em}.katex .fontsize-ensurer.reset-size4.size8,.katex .sizing.reset-size4.size8{font-size:1.8em}.katex .fontsize-ensurer.reset-size4.size9,.katex .sizing.reset-size4.size9{font-size:2.16em}.katex .fontsize-ensurer.reset-size4.size10,.katex .sizing.reset-size4.size10{font-size:2.5925em}.katex .fontsize-ensurer.reset-size4.size11,.katex .sizing.reset-size4.size11{font-size:3.11em}.katex .fontsize-ensurer.reset-size5.size1,.katex .sizing.reset-size5.size1{font-size:.5555555556em}.katex .fontsize-ensurer.reset-size5.size2,.katex .sizing.reset-size5.size2{font-size:.6666666667em}.katex .fontsize-ensurer.reset-size5.size3,.katex .sizing.reset-size5.size3{font-size:.7777777778em}.katex .fontsize-ensurer.reset-size5.size4,.katex .sizing.reset-size5.size4{font-size:.8888888889em}.katex .fontsize-ensurer.reset-size5.size5,.katex .sizing.reset-size5.size5{font-size:1em}.katex .fontsize-ensurer.reset-size5.size6,.katex .sizing.reset-size5.size6{font-size:1.1111111111em}.katex .fontsize-ensurer.reset-size5.size7,.katex .sizing.reset-size5.size7{font-size:1.3333333333em}.katex .fontsize-ensurer.reset-size5.size8,.katex .sizing.reset-size5.size8{font-size:1.6em}.katex .fontsize-ensurer.reset-size5.size9,.katex .sizing.reset-size5.size9{font-size:1.92em}.katex .fontsize-ensurer.reset-size5.size10,.katex .sizing.reset-size5.size10{font-size:2.3044444444em}.katex .fontsize-ensurer.reset-size5.size11,.katex .sizing.reset-size5.size11{font-size:2.7644444444em}.katex .fontsize-ensurer.reset-size6.size1,.katex .sizing.reset-size6.size1{font-size:.5em}.katex .fontsize-ensurer.reset-size6.size2,.katex .sizing.reset-size6.size2{font-size:.6em}.katex .fontsize-ensurer.reset-size6.size3,.katex .sizing.reset-size6.size3{font-size:.7em}.katex .fontsize-ensurer.reset-size6.size4,.katex .sizing.reset-size6.size4{font-size:.8em}.katex .fontsize-ensurer.reset-size6.size5,.katex .sizing.reset-size6.size5{font-size:.9em}.katex .fontsize-ensurer.reset-size6.size6,.katex .sizing.reset-size6.size6{font-size:1em}.katex .fontsize-ensurer.reset-size6.size7,.katex .sizing.reset-size6.size7{font-size:1.2em}.katex .fontsize-ensurer.reset-size6.size8,.katex .sizing.reset-size6.size8{font-size:1.44em}.katex .fontsize-ensurer.reset-size6.size9,.katex .sizing.reset-size6.size9{font-size:1.728em}.katex .fontsize-ensurer.reset-size6.size10,.katex .sizing.reset-size6.size10{font-size:2.074em}.katex .fontsize-ensurer.reset-size6.size11,.katex .sizing.reset-size6.size11{font-size:2.488em}.katex .fontsize-ensurer.reset-size7.size1,.katex .sizing.reset-size7.size1{font-size:.4166666667em}.katex .fontsize-ensurer.reset-size7.size2,.katex .sizing.reset-size7.size2{font-size:.5em}.katex .fontsize-ensurer.reset-size7.size3,.katex .sizing.reset-size7.size3{font-size:.5833333333em}.katex .fontsize-ensurer.reset-size7.size4,.katex .sizing.reset-size7.size4{font-size:.6666666667em}.katex .fontsize-ensurer.reset-size7.size5,.katex .sizing.reset-size7.size5{font-size:.75em}.katex .fontsize-ensurer.reset-size7.size6,.katex .sizing.reset-size7.size6{font-size:.8333333333em}.katex .fontsize-ensurer.reset-size7.size7,.katex .sizing.reset-size7.size7{font-size:1em}.katex .fontsize-ensurer.reset-size7.size8,.katex .sizing.reset-size7.size8{font-size:1.2em}.katex .fontsize-ensurer.reset-size7.size9,.katex .sizing.reset-size7.size9{font-size:1.44em}.katex .fontsize-ensurer.reset-size7.size10,.katex .sizing.reset-size7.size10{font-size:1.7283333333em}.katex .fontsize-ensurer.reset-size7.size11,.katex .sizing.reset-size7.size11{font-size:2.0733333333em}.katex .fontsize-ensurer.reset-size8.size1,.katex .sizing.reset-size8.size1{font-size:.3472222222em}.katex .fontsize-ensurer.reset-size8.size2,.katex .sizing.reset-size8.size2{font-size:.4166666667em}.katex .fontsize-ensurer.reset-size8.size3,.katex .sizing.reset-size8.size3{font-size:.4861111111em}.katex .fontsize-ensurer.reset-size8.size4,.katex .sizing.reset-size8.size4{font-size:.5555555556em}.katex .fontsize-ensurer.reset-size8.size5,.katex .sizing.reset-size8.size5{font-size:.625em}.katex .fontsize-ensurer.reset-size8.size6,.katex .sizing.reset-size8.size6{font-size:.6944444444em}.katex .fontsize-ensurer.reset-size8.size7,.katex .sizing.reset-size8.size7{font-size:.8333333333em}.katex .fontsize-ensurer.reset-size8.size8,.katex .sizing.reset-size8.size8{font-size:1em}.katex .fontsize-ensurer.reset-size8.size9,.katex .sizing.reset-size8.size9{font-size:1.2em}.katex .fontsize-ensurer.reset-size8.size10,.katex .sizing.reset-size8.size10{font-size:1.4402777778em}.katex .fontsize-ensurer.reset-size8.size11,.katex .sizing.reset-size8.size11{font-size:1.7277777778em}.katex .fontsize-ensurer.reset-size9.size1,.katex .sizing.reset-size9.size1{font-size:.2893518519em}.katex .fontsize-ensurer.reset-size9.size2,.katex .sizing.reset-size9.size2{font-size:.3472222222em}.katex .fontsize-ensurer.reset-size9.size3,.katex .sizing.reset-size9.size3{font-size:.4050925926em}.katex .fontsize-ensurer.reset-size9.size4,.katex .sizing.reset-size9.size4{font-size:.462962963em}.katex .fontsize-ensurer.reset-size9.size5,.katex .sizing.reset-size9.size5{font-size:.5208333333em}.katex .fontsize-ensurer.reset-size9.size6,.katex .sizing.reset-size9.size6{font-size:.5787037037em}.katex .fontsize-ensurer.reset-size9.size7,.katex .sizing.reset-size9.size7{font-size:.6944444444em}.katex .fontsize-ensurer.reset-size9.size8,.katex .sizing.reset-size9.size8{font-size:.8333333333em}.katex .fontsize-ensurer.reset-size9.size9,.katex .sizing.reset-size9.size9{font-size:1em}.katex .fontsize-ensurer.reset-size9.size10,.katex .sizing.reset-size9.size10{font-size:1.2002314815em}.katex .fontsize-ensurer.reset-size9.size11,.katex .sizing.reset-size9.size11{font-size:1.4398148148em}.katex .fontsize-ensurer.reset-size10.size1,.katex .sizing.reset-size10.size1{font-size:.2410800386em}.katex .fontsize-ensurer.reset-size10.size2,.katex .sizing.reset-size10.size2{font-size:.2892960463em}.katex .fontsize-ensurer.reset-size10.size3,.katex .sizing.reset-size10.size3{font-size:.337512054em}.katex .fontsize-ensurer.reset-size10.size4,.katex .sizing.reset-size10.size4{font-size:.3857280617em}.katex .fontsize-ensurer.reset-size10.size5,.katex .sizing.reset-size10.size5{font-size:.4339440694em}.katex .fontsize-ensurer.reset-size10.size6,.katex .sizing.reset-size10.size6{font-size:.4821600771em}.katex .fontsize-ensurer.reset-size10.size7,.katex .sizing.reset-size10.size7{font-size:.5785920926em}.katex .fontsize-ensurer.reset-size10.size8,.katex .sizing.reset-size10.size8{font-size:.6943105111em}.katex .fontsize-ensurer.reset-size10.size9,.katex .sizing.reset-size10.size9{font-size:.8331726133em}.katex .fontsize-ensurer.reset-size10.size10,.katex .sizing.reset-size10.size10{font-size:1em}.katex .fontsize-ensurer.reset-size10.size11,.katex .sizing.reset-size10.size11{font-size:1.1996142719em}.katex .fontsize-ensurer.reset-size11.size1,.katex .sizing.reset-size11.size1{font-size:.2009646302em}.katex .fontsize-ensurer.reset-size11.size2,.katex .sizing.reset-size11.size2{font-size:.2411575563em}.katex .fontsize-ensurer.reset-size11.size3,.katex .sizing.reset-size11.size3{font-size:.2813504823em}.katex .fontsize-ensurer.reset-size11.size4,.katex .sizing.reset-size11.size4{font-size:.3215434084em}.katex .fontsize-ensurer.reset-size11.size5,.katex .sizing.reset-size11.size5{font-size:.3617363344em}.katex .fontsize-ensurer.reset-size11.size6,.katex .sizing.reset-size11.size6{font-size:.4019292605em}.katex .fontsize-ensurer.reset-size11.size7,.katex .sizing.reset-size11.size7{font-size:.4823151125em}.katex .fontsize-ensurer.reset-size11.size8,.katex .sizing.reset-size11.size8{font-size:.578778135em}.katex .fontsize-ensurer.reset-size11.size9,.katex .sizing.reset-size11.size9{font-size:.6945337621em}.katex .fontsize-ensurer.reset-size11.size10,.katex .sizing.reset-size11.size10{font-size:.8336012862em}.katex .fontsize-ensurer.reset-size11.size11,.katex .sizing.reset-size11.size11{font-size:1em}.katex .delimsizing.size1{font-family:KaTeX_Size1}.katex .delimsizing.size2{font-family:KaTeX_Size2}.katex .delimsizing.size3{font-family:KaTeX_Size3}.katex .delimsizing.size4{font-family:KaTeX_Size4}.katex .delimsizing.mult .delim-size1>span{font-family:KaTeX_Size1}.katex .delimsizing.mult .delim-size4>span{font-family:KaTeX_Size4}.katex .nulldelimiter{display:inline-block;width:.12em}.katex .delimcenter,.katex .op-symbol{position:relative}.katex .op-symbol.small-op{font-family:KaTeX_Size1}.katex .op-symbol.large-op{font-family:KaTeX_Size2}.katex .accent>.vlist-t,.katex .op-limits>.vlist-t{text-align:center}.katex .accent .accent-body{position:relative}.katex .accent .accent-body:not(.accent-full){width:0}.katex .overlay{display:block}.katex .mtable .vertical-separator{display:inline-block;min-width:1px}.katex .mtable .arraycolsep{display:inline-block}.katex .mtable .col-align-c>.vlist-t{text-align:center}.katex .mtable .col-align-l>.vlist-t{text-align:left}.katex .mtable .col-align-r>.vlist-t{text-align:right}.katex .svg-align{text-align:left}.katex svg{fill:currentColor;stroke:currentColor;display:block;height:inherit;position:absolute;width:100%}.katex svg path{stroke:none}.katex svg{fill-rule:nonzero;fill-opacity:1;stroke-width:1;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1}.katex img{border-style:none;max-height:none;max-width:none;min-height:0;min-width:0}.katex .stretchy{display:block;overflow:hidden;position:relative;width:100%}.katex .stretchy:after,.katex .stretchy:before{content:""}.katex .hide-tail{overflow:hidden;position:relative;width:100%}.katex .halfarrow-left{left:0;overflow:hidden;position:absolute;width:50.2%}.katex .halfarrow-right{overflow:hidden;position:absolute;right:0;width:50.2%}.katex .brace-left{left:0;overflow:hidden;position:absolute;width:25.1%}.katex .brace-center{left:25%;overflow:hidden;position:absolute;width:50%}.katex .brace-right{overflow:hidden;position:absolute;right:0;width:25.1%}.katex .x-arrow-pad{padding:0 .5em}.katex .cd-arrow-pad{padding:0 .55556em 0 .27778em}.katex .mover,.katex .munder,.katex .x-arrow{text-align:center}.katex .boxpad{padding:0 .3em}.katex .fbox,.katex .fcolorbox{border:.04em solid;box-sizing:border-box}.katex .cancel-pad{padding:0 .2em}.katex .cancel-lap{margin-left:-.2em;margin-right:-.2em}.katex .sout{border-bottom-style:solid;border-bottom-width:.08em}.katex .angl{border-right:.049em solid;border-top:.049em solid;box-sizing:border-box;margin-right:.03889em}.katex .anglpad{padding:0 .03889em}.katex .eqn-num:before{content:"(" counter(katexEqnNo) ")";counter-increment:katexEqnNo}.katex .mml-eqn-num:before{content:"(" counter(mmlEqnNo) ")";counter-increment:mmlEqnNo}.katex .mtr-glue{width:50%}.katex .cd-vert-arrow{display:inline-block;position:relative}.katex .cd-label-left{display:inline-block;position:absolute;right:calc(50% + .3em);text-align:left}.katex .cd-label-right{display:inline-block;left:calc(50% + .3em);position:absolute;text-align:right}.katex-display{display:block;margin:1em 0;text-align:center}.katex-display>.katex{display:block;text-align:center;white-space:nowrap}.katex-display>.katex>.katex-html{display:block;position:relative}.katex-display>.katex>.katex-html>.tag{position:absolute;right:0}.katex-display.leqno>.katex>.katex-html>.tag{left:0;right:auto}.katex-display.fleqn>.katex{padding-left:2em;text-align:left}body{counter-reset:katexEqnNo mmlEqnNo}:root{--paper: #ffffff;--canvas: #f3f4f6;--panel: #eceef2;--ink: #222831;--ink-soft: #495567;--ink-muted: #667080;--line: #e1e4e9;--line-strong: #bdc4cf;--primary: #2e3d55;--primary-deep: #233047;--primary-tint: #e8edf4;--copper: #b58b65;--copper-ink: #86603f;--amber: var(--copper-ink);--amber-tint: #f7f0e9;--clay: #b23e39;--clay-tint: #fff0ef;--sky: #386487;--sky-tint: #edf3f8;--font-sans: "Source Han Sans SC VF", "MiSans", "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", system-ui, sans-serif;--font-serif: "Songti SC", "Source Han Serif SC", "SimSun", Georgia, serif;--font-mono: Consolas, monospace;--radius-sm: 5px;--radius-md: 10px;--ease: cubic-bezier(.16, 1, .3, 1);font-family:var(--font-sans);color:var(--ink);background:var(--canvas);font-synthesis:none;text-rendering:optimizeLegibility;font-size:15px;line-height:1.65;font-variant-numeric:tabular-nums}*{box-sizing:border-box}body{margin:0}button,input,select,textarea{font:inherit;color:inherit}button,a,input,select,textarea{-webkit-tap-highlight-color:transparent}button{cursor:pointer}button:disabled{cursor:not-allowed;opacity:.5}button{background:none;border:0}a{color:inherit;text-decoration:none;text-underline-offset:4px}p{margin:0 0 14px}h1,h2,h3{margin:0;font-weight:600;line-height:1.45}h1{font-size:28px}h2{font-size:17px}h3{font-size:15px}small,.small{font-size:13px}strong{font-weight:600}em{font-style:normal}img{max-width:100%;display:block}svg{flex:none}button,a,input,select,textarea{outline-offset:4px}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible,summary:focus-visible{outline:2px solid var(--primary)}::selection{background:#dce4f0;color:var(--ink)}input,textarea{caret-color:var(--primary)}::placeholder{color:var(--ink-muted);opacity:1}*{scrollbar-width:thin;scrollbar-color:var(--line-strong) transparent}.sr-only{position:absolute!important;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.muted{color:var(--ink-muted)}.danger{color:var(--clay)!important}.warm-text{color:var(--amber)}.required{color:var(--clay)}.full{width:100%}.icon{vertical-align:middle}.mobile-only,.mobile-menu{display:none}.paper{background:var(--paper);border:1px solid var(--line);border-radius:9px}.button{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:41px;padding:9px 15px;white-space:nowrap;border:1px solid var(--line-strong);border-radius:6px;background:var(--paper);font-weight:500;font-size:13px;transition:background .15s,border-color .15s,transform .12s}.button:hover:not(:disabled){background:var(--panel);border-color:#aab5c5}.button:active:not(:disabled){transform:translateY(1px)}.button.primary{background:var(--primary);border-color:var(--primary);color:#fff}.button.primary:hover:not(:disabled){background:var(--primary-deep);border-color:var(--primary-deep)}.button.destructive{background:var(--clay);border-color:var(--clay);color:#fff}.button.small{min-height:35px;padding:6px 11px;font-size:13px}.text-button{display:inline-flex;align-items:center;justify-content:center;gap:6px;min-height:32px;padding:3px 0;font-size:13px;color:var(--primary);white-space:nowrap}.text-button:hover{text-decoration:underline}.icon-button{display:inline-flex;align-items:center;justify-content:center;width:36px;height:36px;padding:7px;border:1px solid transparent;border-radius:6px;flex:none;transition:background .15s,color .15s}.icon-button:hover:not(:disabled){background:var(--panel)}.row-actions{display:flex;gap:8px;align-items:center}.progress-track{height:5px;background:var(--line);border-radius:10px;overflow:hidden}.progress-track>span{display:block;height:100%;background:var(--primary);border-radius:inherit}label:not(.check-label):not(.row-select){display:block;font-size:13px;font-weight:500}input:not([type=checkbox]):not([type=radio]),select,textarea{width:100%;min-width:0;min-height:41px;border:1px solid var(--line-strong);border-radius:5px;background:var(--paper);padding:9px 11px;transition:border-color .15s,box-shadow .15s}textarea{resize:vertical;line-height:1.8}input:disabled,textarea:disabled{background:var(--panel);color:var(--ink-muted)}select{padding-right:27px}label>input,label>select,label>textarea,label>.password-input{margin-top:7px}form>label{margin-bottom:18px}input[type=checkbox],input[type=radio]{accent-color:var(--primary);width:16px;height:16px;margin:0;flex:none;cursor:pointer}.check-label{display:inline-flex;align-items:center;gap:8px;font-weight:400;font-size:13px;cursor:pointer}.form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;margin-bottom:20px}.form-grid.three{grid-template-columns:repeat(3,minmax(0,1fr))}.form-actions{display:flex;align-items:center;justify-content:flex-end;gap:12px;flex-wrap:wrap;margin-top:25px;padding-top:22px;border-top:1px solid var(--line)}.form-actions>.muted:first-child{margin-right:auto}.form-section+.form-section{border-top:1px solid var(--line);padding-top:27px;margin-top:27px}.form-section>label{margin-bottom:20px}.form-section>h2{margin-bottom:20px}.knowledge-options{border:0;margin:0 0 20px;padding:0;display:flex;flex-wrap:wrap;gap:10px 20px}.knowledge-options legend{font-size:13px;font-weight:500;margin-bottom:12px}.segmented{display:inline-flex;padding:4px;background:var(--panel);border:1px solid var(--line);border-radius:7px;gap:3px}.segmented button{padding:7px 15px;color:var(--ink-soft);font-size:13px;border-radius:4px;transition:background .2s,color .2s}.segmented button.active{background:var(--paper);color:var(--primary);box-shadow:0 1px 2px #22283112}.tabs{display:flex;gap:25px;border-bottom:1px solid var(--line)}.tabs>button{padding:13px 0;border-bottom:2px solid transparent;color:var(--ink-muted);font-size:13px}.tabs>button.active{border-color:var(--primary);color:var(--primary);font-weight:600}.tabs>button span{margin-left:7px;font-size:13px}.app-shell{min-height:100vh}.status{display:inline-flex;gap:5px;align-items:center;white-space:nowrap;font-size:13px;color:var(--ink-muted)}.status-dot{width:5px;height:5px;border-radius:50%;background:currentColor}.status.mastered{color:var(--primary)}.status.learning{color:var(--sky)}.status.new{color:var(--amber)}.distribution-legend i{width:6px;height:6px;border-radius:2px;background:var(--primary);display:inline-block}.distribution-legend i.physics{background:var(--sky)}.distribution-legend i.english{background:var(--amber)}.rich-text{line-height:1.9;overflow-wrap:anywhere;min-width:0}.rich-text p{margin:0 0 12px}.rich-text p:last-child{margin-bottom:0}.rich-text ul,.rich-text ol{padding-left:22px}.rich-text a{color:var(--primary);text-decoration:underline}.rich-text pre{overflow:auto;background:var(--panel);padding:12px;border-radius:5px;font-size:13px}.rich-text table{max-width:100%;display:block;overflow:auto}.katex{font-size:1.1em}.katex-display{max-width:100%;overflow-x:auto;overflow-y:hidden;padding:5px 0}.favorite.active{color:var(--amber)}.favorite .icon{transition:transform .15s,fill .15s}.favorite:active .icon{transform:scale(1.14)}.result-count{font-size:13px;color:var(--ink-muted)}.batch-toolbar{display:flex;gap:12px;align-items:center;background:var(--primary-tint);border:1px solid #c9d3e1;border-radius:6px;padding:10px 15px;margin-bottom:12px;font-size:13px}.batch-toolbar select{width:170px;min-height:33px;padding:4px 8px}.batch-toolbar>.icon-button{margin-left:auto}.pagination{display:flex;gap:8px;align-items:center;justify-content:flex-end;margin-top:18px;color:var(--ink-muted);font-size:13px}.pagination>span{margin-right:10px}.capture-steps{display:flex;gap:30px;margin-bottom:25px;padding-bottom:20px;border-bottom:1px solid var(--line);color:var(--ink-muted);font-size:13px}.capture-steps>span{display:flex;align-items:center;gap:8px}.capture-steps i{font-style:normal;display:grid;place-items:center;width:23px;height:23px;border:1px solid var(--line-strong);border-radius:50%;font-size:13px}.capture-steps .done{color:var(--primary)}.capture-steps .done i{background:var(--primary);color:#fff;border-color:var(--primary)}.capture-input{padding:26px;max-width:900px;margin:auto}.input-tabs{display:flex;width:max-content;margin:0 auto 25px}.input-tabs button{display:flex;gap:8px;align-items:center}.upload-zone{border:1px dashed #aeb9c8;border-radius:6px;background:#fafbfc;min-height:280px;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:30px;gap:12px;text-align:center;transition:background .2s,border-color .2s}.upload-zone.drag{background:var(--primary-tint);border-color:var(--primary)}.upload-symbol{color:var(--primary);padding:14px;margin-bottom:4px}.upload-zone h2{font-size:18px;font-weight:500}.upload-zone p{font-size:13px;color:var(--ink-muted);margin-bottom:7px}.upload-zone.filled{gap:10px}.upload-preview{height:180px;max-width:100%;object-fit:contain;border-radius:3px}.upload-hint{display:flex;align-items:flex-start;gap:8px;font-size:13px;color:var(--ink-muted);margin:17px 0 23px}.upload-hint .icon{margin-top:2px}.simulation-control{margin-top:5px;color:var(--ink-muted)}.task-progress{display:flex;align-items:center;gap:14px;background:var(--primary-tint);padding:15px;margin-top:20px;border-radius:5px;color:var(--primary)}.task-progress strong{font-size:13px}.task-progress small{display:block;font-size:13px}.task-progress>.text-button{margin-left:auto}.capture-correction{display:flex;gap:25px;align-items:flex-start;margin-top:22px}.form-paper{padding:26px;flex:1;min-width:0}.source-preview{width:260px;padding:20px;position:sticky;top:20px;flex:none}.source-preview h3{margin-bottom:17px}.pdf-preview{display:flex;flex-direction:column;align-items:center;gap:13px;padding:30px 0;text-align:center;overflow-wrap:anywhere}.pdf-preview small{color:var(--ink-muted)}.formula-preview{background:var(--panel);padding:18px;margin:-6px 0 20px;border-radius:5px}.notice{display:flex;align-items:flex-start;gap:13px;border:1px solid #cad3df;background:#f0f3f7;border-radius:6px;padding:16px 20px;font-size:13px;margin-bottom:22px;color:var(--primary)}.notice p{font-size:13px;margin:5px 0 0;color:var(--ink-soft)}.notice>.text-button{margin-left:auto}.single-form{max-width:900px;margin:auto}.text-capture-label>textarea{min-height:270px}.detail-toolbar{display:flex;justify-content:space-between;align-items:center;gap:16px;margin-bottom:23px}.detail-grid{display:grid;grid-template-columns:minmax(0,1fr) 225px;gap:32px}.reading-paper{padding:30px;min-width:0}.reading-heading{display:flex;align-items:center;gap:12px;padding-bottom:23px;border-bottom:1px solid var(--line)}.reading-heading h1{font-size:18px}.reading-heading h1 span{font-size:13px;font-weight:400;color:var(--ink-muted)}.difficulty{margin-left:auto;font-size:13px;color:var(--ink-muted)}.question-content{font-size:17px;line-height:2;padding:30px 0}.question-options{margin-top:22px;display:grid;gap:12px}.original-image{display:flex;align-items:center;gap:15px;text-align:left;padding:10px;border:1px solid var(--line);border-radius:5px;margin:0 0 25px;font-size:13px;color:var(--ink-muted)}.original-image img{height:54px;width:80px;object-fit:contain}.original-image span{display:flex;gap:6px;align-items:center}.answer-compare{display:grid;grid-template-columns:1fr 1fr;border-top:1px solid var(--line);border-bottom:1px solid var(--line);margin-bottom:26px;padding:21px 0;gap:24px}.answer-compare>div+div{border-left:1px solid var(--line);padding-left:24px}.answer-compare h2{font-size:13px;color:var(--ink-muted);display:flex;align-items:center;gap:5px;margin-bottom:11px}.answer-compare>div+div h2{color:var(--primary)}.explanation-section h2,.reflection-section h2{font-size:15px}.disclosure-heading{width:100%;display:flex;justify-content:space-between;align-items:center;padding:0 0 17px;text-align:left}.disclosure-heading>.icon{transition:transform .22s}.rotated{transform:rotate(180deg)}.collapsible{display:grid;grid-template-rows:0fr;transition:grid-template-rows .2s var(--ease)}.collapsible.open{grid-template-rows:1fr}.collapsible>div{overflow:hidden}.reflection-section{padding-top:25px;margin-top:25px;border-top:1px solid var(--line)}.cause-label{display:inline-flex;font-size:13px;padding:2px 7px;background:var(--amber-tint);color:var(--amber);border-radius:3px;margin:13px 0}.reflection-section>p{font-size:13px;color:var(--ink-soft)}.generated-note{padding:17px;background:var(--panel);margin-top:13px;border-radius:5px}.reading-actions{display:flex;gap:12px;flex-wrap:wrap;padding-top:25px;border-top:1px solid var(--line);margin-top:25px}.detail-aside>section{padding:5px 0 24px;margin-bottom:20px;border-bottom:1px solid var(--line)}.detail-aside h2{font-size:13px;margin-bottom:16px}.detail-aside select{font-size:13px}.detail-aside section>p{margin-top:11px}.question-properties{font-size:13px;margin:0}.question-properties dt{font-size:13px;color:var(--ink-muted);margin-top:18px}.question-properties dd{margin:5px 0 0;overflow-wrap:anywhere}.knowledge-link{display:block;color:var(--primary);margin-bottom:4px}.review-record{display:flex;gap:10px;align-items:center;margin:15px 0;color:var(--primary)}.review-record strong{font-size:13px}.review-record small{display:block;font-size:13px;color:var(--ink-muted)}.detail-side-note{font-family:var(--font-sans);font-size:17px;line-height:1.9;color:var(--ink-muted);padding:5px 0}.notebook-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:26px}.notebook{min-width:0}.notebook-cover{background:#fff;border:1px solid #d5dce7;border-radius:4px 8px 8px 4px;position:relative;padding:24px 24px 20px;min-height:230px;color:var(--primary)}.notebook-cover.physics{background:#fff;border-color:#d5dce7;color:var(--sky)}.notebook-cover.english{background:#fff;border-color:#e1d8cf;color:#86603f}.notebook-cover-top{display:flex;align-items:center;justify-content:space-between;font-size:13px;margin-bottom:22px}.notebook-cover h2{font-family:var(--font-sans);font-size:22px}.notebook-cover p{font-size:13px;color:var(--ink-soft);margin:12px 0 15px;max-width:24em}.notebook-lines{display:flex;flex-direction:column;gap:7px;opacity:.25;max-width:80%}.notebook-lines i{height:1px;background:currentColor}.notebook-lines i:last-child{width:70%}.notebook-info{display:flex;align-items:center;justify-content:space-between;padding:12px 2px;font-size:13px;color:var(--ink-muted)}.notebook-info>a{display:flex;align-items:center;gap:7px}.notebook-info strong{color:var(--ink);font-size:18px;font-weight:500}.unclassified-notebook{display:flex;flex-direction:column;align-items:flex-start;justify-content:center;padding:24px;min-height:230px;border:1px dashed var(--line-strong);border-radius:6px;color:var(--ink-muted)}.unclassified-notebook h2{font-size:18px;margin:16px 0 7px}.unclassified-notebook p{font-size:13px}.unclassified-notebook>span{font-size:13px;display:flex;gap:12px;align-items:center}.notebook-hint{display:flex;gap:14px;padding:24px 0;margin-top:30px;border-top:1px solid var(--line);color:var(--ink-muted);font-size:13px}.notebook-hint strong{color:var(--ink-soft);font-size:13px}.notebook-hint p{margin:6px 0 0}.practice-setup{max-width:780px;padding:30px;margin:0 auto}.practice-setup>h2{font-family:var(--font-sans);font-size:22px;margin-bottom:23px}.practice-mode{display:grid;grid-template-columns:1fr 1fr;gap:17px;margin-bottom:27px}.practice-mode>button{display:grid;grid-template-columns:auto 1fr;column-gap:12px;row-gap:4px;text-align:left;border:1px solid var(--line);padding:19px;border-radius:6px;transition:border-color .18s,background .18s}.practice-mode>button>.icon{grid-row:span 2;align-self:center;color:var(--ink-muted)}.practice-mode strong{font-size:14px}.practice-mode span{font-size:13px;color:var(--ink-muted)}.practice-mode>button.active{border-color:var(--primary);background:var(--primary-tint)}.practice-mode>button.active span{color:var(--ink-soft)}.practice-mode>button.active>.icon{color:var(--primary)}.practice-history{max-width:780px;margin:30px auto}.practice-history>h2{margin-bottom:15px}.history-row{display:flex;align-items:center;gap:14px;padding:19px 0;border-bottom:1px solid var(--line)}.history-row>.icon{color:var(--primary)}.history-row>div{flex:1}.history-row strong{font-size:13px}.history-row span{display:block;font-size:13px;color:var(--ink-muted);margin-top:3px}.practice-focus-heading{display:flex;justify-content:space-between;align-items:center;gap:20px;max-width:850px;margin:0 auto 17px}.practice-focus-heading>span{font-size:13px;color:var(--ink-muted)}.practice-focus-heading strong{font-size:23px;font-weight:500}.practice-focus-heading small{font-size:13px;color:var(--ink-muted);font-weight:400}.practice-progress{max-width:850px;margin:0 auto 22px;height:3px}.practice-question{max-width:850px;margin:0 auto;padding:35px}.practice-stem{font-size:19px;margin:25px 0 30px}.practice-options{border:0;padding:0;margin:0;display:grid;gap:12px}.practice-options>label{display:flex!important;align-items:flex-start;gap:13px;border:1px solid var(--line);border-radius:5px;padding:14px 17px;cursor:pointer;font-weight:400!important}.practice-options input{margin-top:6px}.practice-options>label.checked{border-color:var(--primary);background:var(--primary-tint)}.grading-result{margin-top:25px;padding:23px;background:#f0f3f7;border-radius:6px}.grading-result.incorrect{background:#f7f0e9}.grading-title{display:flex;gap:10px;align-items:center;color:var(--primary);margin-bottom:12px}.incorrect .grading-title{color:var(--amber)}.grading-title h2{font-size:17px}.grading-result h3{font-size:13px;margin:20px 0 10px}.grading-result .row-actions{margin:15px 0}.practice-result{padding:35px;max-width:850px;margin:auto;text-align:center}.completion-mark{display:grid;place-items:center;width:64px;height:64px;background:var(--primary-tint);color:var(--primary);border-radius:50%;margin:0 auto 18px;animation:complete .2s var(--ease)}.practice-result h1{font-family:var(--font-sans);font-size:26px;margin-bottom:9px}.result-numbers{display:grid;grid-template-columns:repeat(3,1fr);margin:30px 0;border-block:1px solid var(--line);padding:23px 0}.result-numbers>div{display:flex;flex-direction:column;gap:4px}.result-numbers strong{font-size:31px;font-weight:500;color:var(--primary)}.result-numbers small{font-size:15px}.result-numbers span{font-size:13px;color:var(--ink-muted)}.result-question{display:flex;align-items:center;gap:14px;padding:15px 0;border-bottom:1px solid var(--line);text-align:left}.result-question>.icon{color:var(--primary)}.result-question>.rich-text{flex:1;font-size:13px}.result-question>.rich-text p{margin:0}.review-overview{display:flex;align-items:center;justify-content:space-between;gap:25px;background:var(--paper);padding:24px;border:1px solid var(--line);border-radius:7px;margin-bottom:30px}.review-overview>div:first-child{display:flex;align-items:center;gap:16px}.review-overview>div:first-child>.icon{color:var(--primary)}.review-overview h2{font-size:16px}.review-overview p{margin:5px 0 0;color:var(--ink-soft);font-size:13px}.review-overview-progress{width:160px;flex:none}.review-overview-progress>span{display:flex;justify-content:space-between;font-size:13px;margin-bottom:8px;color:var(--ink-muted)}.review-layout{display:grid;grid-template-columns:minmax(0,1fr) 270px;gap:30px}.review-layout>section{min-width:0}.review-tabs{margin-bottom:18px}.review-task{display:flex;gap:13px;align-items:center;padding:21px 18px;border-bottom:1px solid var(--line);transition:background .18s}.review-task:last-child{border:0}.task-check{width:28px;height:28px;border:1px solid var(--line-strong);border-radius:50%;display:grid;place-items:center;color:var(--ink-muted);flex:none}.review-task.completed .task-check{background:var(--primary-tint);border-color:#c5cfdd;color:var(--primary);animation:complete .2s var(--ease)}.review-task-content{flex:1;min-width:0}.review-task-content>.rich-text{font-size:13px;max-height:67px;overflow:hidden}.review-task-content .rich-text p{margin:0}.plan-item{padding:18px 0;border-top:1px solid var(--line)}.plan-heading{display:flex;gap:8px;justify-content:space-between;align-items:center}.plan-heading h3{font-size:13px}.plan-item>p{font-size:13px;color:var(--ink-muted);margin:9px 0 16px}.plan-details{display:flex;justify-content:space-between;align-items:center;font-size:13px;margin-bottom:9px}.plan-details small{font-size:13px;color:var(--ink-muted)}.plan-item>.row-actions{justify-content:space-between}.review-rule{border-top:1px solid var(--line);padding-top:22px;margin-top:8px;color:var(--ink-muted);font-size:13px}.review-rule summary{cursor:pointer;font-size:13px;color:var(--ink-soft);margin-bottom:15px}.completion-inline{display:flex;align-items:center;gap:8px;color:var(--primary);font-size:13px}.analytics-conclusion{display:flex;gap:19px;align-items:center;background:var(--paper);border:1px solid var(--line);border-radius:7px;padding:24px;color:var(--primary)}.analytics-conclusion>div{flex:1;min-width:0}.analytics-conclusion h2{font-size:19px;font-family:var(--font-sans)}.analytics-conclusion p{font-size:13px;color:var(--ink-soft);margin:8px 0 0}.analytics-summary{display:grid;grid-template-columns:repeat(4,1fr);padding:30px 0}.analytics-summary>div{border-right:1px solid var(--line);padding:0 25px}.analytics-summary>div:first-child{padding-left:0}.analytics-summary>div:last-child{border:0}.analytics-summary>div>span{font-size:13px;color:var(--ink-muted);display:block}.analytics-summary strong{display:block;font-size:31px;font-weight:500;margin:6px 0}.analytics-summary strong>small{font-size:13px;margin-left:5px}.analytics-summary>div>small{font-size:13px;color:var(--ink-muted)}.analytics-trend{padding:23px}.chart-data summary{font-size:13px;color:var(--primary);cursor:pointer}.data-table-wrap{max-height:300px;overflow:auto;margin-top:12px}table{width:100%;border-collapse:collapse;text-align:left;font-size:13px}td,th{border-bottom:1px solid var(--line);padding:8px 12px}th{font-weight:500;background:var(--panel)}.analytics-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:23px;margin-top:23px}.analytics-section{padding:24px;min-width:0}.distribution-layout{display:grid;grid-template-columns:1fr 110px;align-items:center;gap:12px}.distribution-legend>a{display:flex;justify-content:space-between;align-items:center;padding:13px 0;border-bottom:1px solid var(--line);font-size:13px}.distribution-legend i{margin-right:8px}.distribution-legend strong{font-weight:500}.distribution-legend small{font-size:13px;color:var(--ink-muted);margin-left:5px}.mastery-bar{display:flex;height:14px;border-radius:4px;overflow:hidden;margin:38px 0 25px;background:var(--panel)}.mastery-bar>.mastered{background:var(--primary)}.mastery-bar>.learning{background:#7892ac}.mastery-bar>.new{background:#b58b65}.mastery-legend{display:flex;justify-content:space-between;gap:12px;margin-bottom:20px}.mastery-legend>a{display:flex;flex-direction:column;gap:9px}.mastery-legend strong{font-size:13px;font-weight:500}.analysis-bar-row{display:flex;align-items:center;gap:12px;padding:12px 0;font-size:13px}.analysis-bar-row>span{width:105px;flex:none}.analysis-bar-row>div{flex:1;height:6px;background:var(--panel);overflow:hidden;border-radius:2px}.analysis-bar-row i{display:block;height:100%;background:#94a3b8}.analysis-bar-row.warm i{background:#c5b18b}.analysis-bar-row>strong{width:18px;text-align:right;font-size:13px;font-weight:500}.analysis-bar-row>.icon{color:var(--ink-muted)}.analytics-footnote{color:var(--ink-muted);font-size:13px;line-height:1.9;margin:20px 0 0}.settings-layout{display:grid;grid-template-columns:minmax(0,1fr) 270px;gap:35px}.settings-form{padding:30px}.settings-form>h2{font-size:17px}.avatar-setting{display:flex;align-items:center;gap:17px;margin:25px 0}.avatar-setting small{display:block;font-size:13px;margin-top:7px}.settings-subheading{padding-top:26px;border-top:1px solid var(--line);margin:30px 0 23px}.settings-aside>section{padding:0 0 25px;border-bottom:1px solid var(--line);margin-bottom:25px}.settings-aside h2{font-size:14px;margin-bottom:13px}.settings-aside p{font-size:13px;color:var(--ink-muted);line-height:1.9}.settings-aside .button,.settings-aside .small{font-size:13px}.login-page{min-height:100dvh;display:grid;grid-template-columns:1fr 1fr}.login-story{position:relative;display:flex;flex-direction:column;padding:45px 55px;background:#edf1f6;border-right:1px solid #d5dce7}.login-story-copy{max-width:410px;margin:auto;padding:50px 0}.login-story-copy>h1{font-family:var(--font-sans);font-size:43px;line-height:1.6;letter-spacing:2px;font-weight:500}.login-story-copy>p{margin:23px 0 34px;font-size:14px;color:#495567;line-height:2}.sample-sheet{background:var(--paper);padding:25px 27px 20px;border:1px solid #d5dce7;border-radius:3px;transform:rotate(-2deg);max-width:340px}.sample-sheet-heading{display:flex;justify-content:space-between;gap:20px;font-size:13px;color:var(--primary);padding-bottom:15px;border-bottom:1px solid var(--line)}.sample-sheet>p{font-family:var(--font-sans);font-size:21px;line-height:1.8;margin:20px 0}.handwritten{font-family:var(--font-sans);font-size:13px;color:var(--amber);margin-bottom:20px}.sample-sheet-footer{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--primary);border-top:1px solid var(--line);padding-top:15px}.login-footnote{font-size:13px;color:#495567;letter-spacing:1px}.login-form-side{display:grid;place-items:center;background:var(--paper);padding:40px}.login-form-wrap{width:100%;max-width:350px}.login-form-wrap>h2{font-family:var(--font-sans);font-size:29px}.login-form-wrap>.muted{font-size:13px;margin:10px 0 27px}.auth-tabs{width:100%;margin-bottom:26px}.auth-tabs button{flex:1}.login-form-wrap form>label{margin-bottom:20px}.password-input{position:relative}.password-input input{padding-right:45px}.password-input button{position:absolute;right:4px;top:3px;color:var(--ink-muted)}.auth-help{display:flex;align-items:center;justify-content:space-between;gap:8px;margin:-7px 0 20px;font-size:13px;color:var(--ink-muted)}.auth-help .text-button{font-size:13px}.or-divider{display:flex;align-items:center;gap:15px;font-size:13px;color:var(--ink-muted);margin:25px 0}.or-divider:before,.or-divider:after{content:"";height:1px;flex:1;background:var(--line)}.demo-login{color:var(--primary)}.auth-disclaimer{font-size:13px;color:var(--ink-muted);text-align:center;margin:20px 0 0;line-height:1.9}.not-found{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:450px;text-align:center;gap:15px}.not-found>strong{font-family:var(--font-sans);font-size:85px;color:#c5cfdd}.not-found h1{font-size:22px}.not-found p{color:var(--ink-muted)}.modal-overlay{position:fixed;inset:0;background:#22283155;z-index:80;animation:fade-in .2s var(--ease)}.modal-content{position:fixed;z-index:81;left:50%;top:50%;transform:translate(-50%,-50%);width:min(480px,calc(100% - 32px));max-height:calc(100dvh - 40px);overflow-y:auto;background:var(--paper);border:1px solid var(--line);border-radius:10px;padding:26px;box-shadow:0 15px 65px #22283130;animation:modal-in .2s var(--ease)}.modal-content.wide{width:min(1000px,calc(100% - 32px))}.modal-heading{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:18px}.modal-heading h2{font-family:var(--font-sans);font-size:22px}.modal-content>p{font-size:13px}.modal-content>form{margin-top:20px}.modal-content[data-state=closed],.modal-overlay[data-state=closed]{animation:fade-out .2s ease-in}.full-image{max-height:75vh;margin:auto;object-fit:contain}.mobile-links{display:flex;flex-direction:column;gap:6px}.mobile-links>a{display:flex;align-items:center;gap:12px;padding:12px;border-radius:5px;font-size:14px}.mobile-links>a.router-link-exact-active{background:var(--primary-tint);color:var(--primary)}.toast-stack{position:fixed;right:24px;bottom:24px;z-index:100;display:flex;flex-direction:column;gap:10px;max-width:min(440px,calc(100% - 32px));pointer-events:none}.toast-message{display:flex;align-items:center;gap:10px;padding:12px 12px 12px 16px;background:var(--paper);border:1px solid #c9d3e1;border-radius:7px;box-shadow:0 5px 25px #22283116;color:var(--primary);font-size:13px;pointer-events:auto}.toast-message.error{border-color:#dcbbb0;color:var(--clay)}.toast-message>span{flex:1}.empty-state,.error-state{display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:55px 25px;gap:13px}.empty-state>.icon,.error-state>.icon{color:var(--ink-muted)}.empty-state h2,.error-state h2{font-size:17px}.empty-state p,.error-state p{font-size:13px;color:var(--ink-muted);max-width:420px;margin:0}.inline-error{background:var(--clay-tint);border:1px solid #e2c6bf;border-radius:5px;padding:11px 14px;font-size:13px;color:var(--clay);margin:15px 0}.skeleton-list{padding:20px;display:flex;flex-direction:column;gap:20px}.skeleton-list>span{display:block;height:65px;background:#f3f4f6;border-radius:4px;animation:skeleton 1.4s ease-in-out infinite}.study-chart{width:100%;min-width:0}.review-complete-move{transition:transform .2s var(--ease)}.review-complete-enter-active,.review-complete-leave-active{transition:opacity .2s,transform .2s var(--ease)}.review-complete-enter-from{opacity:0;transform:translateY(5px)}.review-complete-leave-to{opacity:0;transform:translate(12px)}.toast-enter-active,.toast-leave-active{transition:opacity .2s,transform .2s var(--ease)}.toast-enter-from,.toast-leave-to{opacity:0;transform:translateY(12px)}.message-enter-active{transition:opacity .2s,transform .2s var(--ease)}.message-enter-from{opacity:0;transform:translateY(5px)}.expand-enter-active,.expand-leave-active,.result-enter-active{transition:opacity .2s,transform .2s var(--ease)}.expand-enter-from,.expand-leave-to,.result-enter-from{opacity:0;transform:translateY(-5px)}.spin{animation:spin 1s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}@keyframes complete{0%{opacity:.3;transform:scale(.85)}to{opacity:1;transform:scale(1)}}@keyframes fade-in{0%{opacity:0}to{opacity:1}}@keyframes fade-out{to{opacity:0}}@keyframes modal-in{0%{opacity:0;transform:translate(-50%,-48%)}to{opacity:1;transform:translate(-50%,-50%)}}@keyframes skeleton{50%{opacity:.5}}@media(max-width:1199px){.detail-grid{grid-template-columns:minmax(0,1fr) 195px;gap:22px}.reading-paper{padding:24px}.review-layout{grid-template-columns:minmax(0,1fr) 235px;gap:22px}.notebook-grid{gap:20px}.notebook-cover{padding:21px 19px}.notebook-cover h2{font-size:19px}.settings-layout{grid-template-columns:minmax(0,1fr) 230px;gap:25px}.analytics-summary>div{padding-inline:18px}.analytics-section{padding:20px}.distribution-layout{grid-template-columns:1fr 90px}.source-preview{width:200px}.capture-correction{gap:20px}.form-paper{padding:22px}.login-story{padding:35px}.login-story-copy>h1{font-size:37px}}@media(max-width:1023px){.detail-grid{grid-template-columns:minmax(0,1fr)}.detail-aside{display:grid;grid-template-columns:1fr 1fr;gap:25px}.detail-side-note{display:none}.detail-aside>section{padding-top:10px}.reading-paper{padding:27px}.detail-toolbar{align-items:flex-start}.detail-toolbar .row-actions{gap:5px;flex-wrap:wrap;justify-content:flex-end}.review-layout{grid-template-columns:minmax(0,1fr)}.review-plans{display:grid;grid-template-columns:1fr 1fr;gap:0 25px}.review-rule{grid-column:1/-1}.review-overview{flex-wrap:wrap}.review-overview-progress{margin-left:auto}.review-overview>.button{margin-left:auto}.notebook-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.analytics-summary>div{padding-inline:12px}.analytics-summary strong{font-size:27px}.analytics-grid{grid-template-columns:1fr}.analytics-conclusion{flex-wrap:wrap}.analytics-conclusion>.button{margin-left:44px}.settings-layout{grid-template-columns:minmax(0,1fr)}.settings-aside{display:grid;grid-template-columns:1fr 1fr;gap:0 25px}.capture-correction{display:block}.source-preview{position:static;width:100%;margin-bottom:20px;display:flex;align-items:center;gap:20px}.source-preview img{max-height:150px;max-width:65%;object-fit:contain}.source-preview h3{margin:0}.pdf-preview{padding:5px}.login-story{padding:30px}.login-story-copy>h1{font-size:32px}.sample-sheet{padding:22px}.login-form-side{padding:30px}.sample-sheet>p{font-size:20px}}@media(max-width:767px){:root{font-size:15px}.mobile-menu{display:inline-flex}.mobile-only{display:initial}.batch-toolbar{gap:8px;flex-wrap:wrap;padding:12px}.batch-toolbar select{width:150px;flex:1}.batch-toolbar>.icon-button{width:28px;height:28px}.capture-steps{gap:13px;font-size:13px;justify-content:space-between}.capture-steps>span{gap:5px}.capture-steps i{width:20px;height:20px;font-size:13px}.capture-input{padding:17px}.input-tabs{width:100%;gap:1px;padding:3px}.input-tabs button{font-size:13px;padding:8px 6px;gap:5px;flex:1;justify-content:center}.input-tabs button>.icon{width:15px}.upload-zone{padding:25px 15px;min-height:270px}.upload-zone h2{font-size:17px}.upload-zone p{font-size:13px}.form-actions{gap:10px;margin-top:23px;padding-top:19px}.form-actions>.muted:first-child{width:100%;font-size:13px}.form-actions>.button{font-size:13px}.form-grid,.form-grid.three{grid-template-columns:1fr;gap:16px;margin-bottom:18px}.form-paper{padding:20px}.question-form textarea{font-size:13px}.knowledge-options{gap:12px}.notice{padding:14px;font-size:13px;flex-wrap:wrap;gap:10px}.notice>div{flex:1;min-width:200px}.notice p{font-size:13px}.notice>.text-button{margin-left:30px}.source-preview{padding:16px}.source-preview h3{font-size:13px}.source-preview img{max-height:100px}.task-progress{gap:9px;padding:12px;flex-wrap:wrap}.task-progress small{font-size:13px}.detail-toolbar{gap:12px;flex-wrap:wrap}.detail-toolbar>.row-actions{width:100%;justify-content:flex-end}.detail-toolbar>.row-actions>.button{font-size:13px}.reading-paper{padding:22px 19px}.reading-heading{gap:9px}.reading-heading h1{font-size:16px}.reading-heading h1 span{font-size:13px}.question-content{font-size:16px;padding:25px 0}.answer-compare{gap:14px}.answer-compare>div+div{padding-left:14px}.answer-compare .rich-text{font-size:13px}.reading-actions{gap:10px}.reading-actions>.button{width:100%;font-size:13px}.reading-actions>.text-button{margin:0 auto}.detail-aside{gap:20px}.detail-aside h2,.detail-aside select,.question-properties{font-size:13px}.detail-aside>section{margin-bottom:0}.notebook-grid{gap:22px;grid-template-columns:1fr}.notebook-cover{min-height:220px;padding:25px}.notebook-cover h2{font-size:23px}.notebook-info{padding-top:9px}.notebook-hint{font-size:13px;margin-top:25px}.notebook-hint strong{font-size:13px}.practice-setup{padding:22px 19px}.practice-setup>h2{font-size:20px}.practice-mode{gap:10px;margin-bottom:24px}.practice-mode>button{padding:15px 12px;grid-template-columns:1fr;gap:7px}.practice-mode>button>.icon{grid-row:auto;width:20px;height:20px;margin-bottom:3px}.practice-mode strong,.practice-mode span{font-size:13px}.practice-focus-heading{gap:10px;flex-wrap:wrap}.practice-focus-heading>span{font-size:13px}.practice-focus-heading>.text-button{font-size:13px}.practice-focus-heading strong{font-size:19px}.practice-question{padding:23px 19px}.practice-stem{font-size:18px;margin:23px 0}.practice-options>label{padding:12px;gap:10px}.practice-options .rich-text{font-size:13px}.grading-result{padding:17px}.grading-title h2{font-size:15px}.grading-result .rich-text{font-size:13px}.practice-result{padding:25px 18px}.practice-result h1{font-size:24px}.practice-result>p{font-size:13px}.result-numbers strong{font-size:27px}.result-question{gap:9px}.result-question .text-button,.result-question .rich-text{font-size:13px}.practice-result .form-actions>.button{flex:1}.review-overview{padding:21px 18px;gap:20px}.review-overview>div:first-child{gap:12px;width:100%}.review-overview p{font-size:13px}.review-overview-progress{width:135px;margin-left:0}.review-overview>.button{font-size:13px;padding-inline:11px}.review-tabs{gap:24px}.review-tabs>button{font-size:13px}.review-task{padding:18px 12px;gap:10px}.review-task .task-check{width:25px;height:25px}.review-task-content>.rich-text{max-height:90px;font-size:13px}.review-task>.text-button{font-size:13px}.review-plans{grid-template-columns:1fr}.review-rule{grid-column:auto}.analytics-conclusion{padding:20px;gap:12px}.analytics-conclusion>.icon{display:none}.analytics-conclusion h2{font-size:18px}.analytics-conclusion p{font-size:13px}.analytics-conclusion>.button{margin:5px 0 0;font-size:13px}.analytics-summary{grid-template-columns:1fr 1fr;padding:24px 0;row-gap:23px}.analytics-summary>div{padding:0 18px}.analytics-summary>div:nth-child(odd){padding-left:0}.analytics-summary>div:nth-child(2n){border:0}.analytics-summary strong{font-size:28px}.analytics-trend{padding:18px 13px}.analytics-section{padding:20px}.analytics-grid{gap:20px;margin-top:20px}.distribution-layout{grid-template-columns:1fr 100px}.analysis-bar-row>span{width:100px}.settings-form{padding:23px 19px}.settings-aside{grid-template-columns:1fr}.settings-layout{gap:30px}.login-page{grid-template-columns:1fr}.login-story{padding:25px;border:0;border-bottom:1px solid #d5dce7}.login-story-copy{margin:25px 0 5px;padding:0}.login-story-copy>h1{font-size:29px;line-height:1.5}.login-story-copy>h1 br{display:initial}.login-story-copy>p,.sample-sheet,.login-footnote{display:none}.login-form-side{padding:32px 25px 40px}.login-form-wrap{max-width:420px}.login-form-wrap>h2{font-size:25px}.modal-content{padding:23px}.modal-content .form-grid{grid-template-columns:1fr}.modal-heading h2{font-size:21px}.toast-stack{right:16px;bottom:16px}.toast-message{font-size:13px;padding:10px 10px 10px 13px}.icon-button{width:40px;height:40px}.mobile-links>a{min-height:44px}.modal-content .icon-button{width:40px;height:40px}}@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important;scroll-behavior:auto!important}.spin{animation:none}}.mobile-menu.icon-button{display:none}@media(max-width:767px){.mobile-menu.icon-button{display:inline-flex}}.sr-only{width:1px!important;height:1px!important;min-width:0!important;min-height:0!important;padding:0!important;border:0!important}.sidebar{--ink-muted: #606b7b;position:fixed;inset:0 auto 0 0;width:232px;padding:28px 16px 18px;display:flex;flex-direction:column;background:var(--panel);border-right:1px solid var(--line);z-index:30}.brand{display:flex;align-items:center;gap:12px;padding:0 10px}.brand-symbol{display:grid;place-items:center;color:var(--primary);width:38px;height:42px;border:1px solid #b9c3d0;border-radius:7px 3px 3px 7px}.brand strong{font-family:var(--font-serif);font-size:26px;line-height:1.25;letter-spacing:2px}.brand strong>span{display:block;font:400 13px/1.5 var(--font-sans);letter-spacing:1px;color:var(--ink-muted);margin-top:4px}.sidebar-label{color:var(--ink-muted);font-size:13px;margin:36px 14px 12px}.main-nav{display:flex;flex-direction:column;gap:5px}.main-nav>a{display:flex;align-items:center;gap:12px;min-height:46px;padding:10px 14px;border-radius:var(--radius-sm);color:var(--ink-soft);font-size:15px;transition:background .16s,color .16s}.main-nav>a .icon{width:19px;height:19px}.main-nav>a:hover{background:#e4e8ee}.main-nav>a.selected{background:var(--primary);color:#fff;font-weight:500}.nav-count{margin-left:auto;font-size:13px;padding:0 6px;border-radius:4px;background:#ffffff24}.main-nav>a:not(.selected) .nav-count{background:#dfe4ec;color:var(--primary)}.sidebar-bottom{margin-top:auto;padding-top:28px}.daily-note{padding:16px 12px 22px;color:var(--ink-soft);font-size:13px}.daily-note>.icon{color:var(--primary);margin-right:7px}.daily-note strong{display:block;font-size:24px;color:var(--primary);font-weight:500;margin:7px 0 10px}.daily-note small{font-size:13px;color:var(--ink-muted);font-weight:400}.profile-link{display:flex;align-items:center;gap:10px;padding:18px 8px 0;border-top:1px solid #d7dce4}.avatar{display:grid;place-items:center;width:36px;height:36px;border-radius:50%;background:#dce2eb;color:var(--primary);flex:none;overflow:hidden}.avatar img{width:100%;height:100%;object-fit:cover}.profile-link strong{font-size:14px;font-weight:500}.profile-link small{display:block;font-size:13px;color:var(--ink-muted)}.profile-link>.icon{margin-left:auto;color:var(--ink-muted)}.workspace{margin-left:232px;min-width:0}.topbar{height:68px;padding:0 32px;display:flex;justify-content:space-between;align-items:center;gap:16px;background:var(--paper);border-bottom:1px solid var(--line)}.topbar-start,.topbar-actions{display:flex;align-items:center;gap:18px;min-width:0}.topbar-title{color:var(--ink-soft);font-size:14px;white-space:nowrap}.demo-badge{display:inline-flex;align-items:center;gap:6px;font-size:13px;color:var(--copper-ink);border:1px solid #e1d5cb;border-radius:4px;padding:3px 7px;white-space:nowrap}.demo-badge>span{width:5px;height:5px;border-radius:50%;background:var(--copper)}.global-search{display:flex;gap:8px;align-items:center;color:var(--ink-muted)}.global-search input{background:transparent!important;border:0!important;width:184px!important;min-height:34px!important;font-size:14px;padding:4px!important}.global-search kbd{border:1px solid var(--line);font-size:13px;padding:0 4px;border-radius:3px}.demo-strip{padding:12px 32px;background:#fff;border-bottom:1px solid var(--line);display:flex;justify-content:space-between;gap:12px;font-size:13px;color:var(--ink-soft)}.demo-strip>a{display:flex;align-items:center;color:var(--primary);white-space:nowrap}#main-content{padding:24px 32px 28px;max-width:1600px;margin:auto;min-height:calc(100dvh - 124px);outline:none}.page-heading{display:flex;justify-content:space-between;align-items:center;gap:16px;margin-bottom:20px}.page-heading h1{font:600 26px/1.4 var(--font-sans);letter-spacing:0}.page-heading p{font-size:15px;color:var(--ink-muted);margin:6px 0 0}.date-stamp{display:flex;align-items:center;gap:8px;color:var(--ink-muted);font-size:14px;white-space:nowrap}.workspace-footer{margin:0 32px;padding:16px 0;border-top:1px solid var(--line);display:flex;justify-content:space-between;font-size:13px;color:var(--ink-muted)}.section-heading{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-bottom:12px}.section-heading h2{font-size:18px;font-weight:600}.paper{border-radius:var(--radius-md)}.button{font-size:15px;border-radius:var(--radius-sm);min-height:42px}.button.small{font-size:14px;min-height:36px}.text-button{font-size:14px}label:not(.check-label):not(.row-select),.check-label{font-size:14px}.small,small{font-size:13px}input,select,textarea{font-size:15px}.rich-text{font-size:17px;line-height:1.85}.rich-text h2,.rich-text h3{font-size:17px;font-weight:600;margin:18px 0 7px}.rich-text blockquote{margin:12px 0;border-left:1px solid var(--line-strong);padding:3px 16px;color:var(--ink-soft)}.question-content,.explanation-content,.practice-question{font-size:18px}.explanation-section .rich-text,.practice-options .rich-text,.grading-result .rich-text,.result-question>.rich-text,.review-task-content>.rich-text{font-size:17px}.status{font-size:13px;color:#536175}.status.mastered{color:#345f64}.status.learning{color:#386487}.status.new{color:#86603f}.dashboard-top,.dashboard-bottom{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:22px;align-items:start}.review-feature{background:var(--primary);color:#fff;padding:21px 26px;border-radius:var(--radius-md);height:250px}.review-feature-top{display:flex;justify-content:space-between;align-items:center}.review-feature-top h2{font-size:17px;font-weight:500}.review-feature .text-button{color:#e0e6ef}.review-feature-content{display:flex;align-items:center;justify-content:space-between;gap:20px;padding-top:9px}.review-task-copy h3{font-size:24px;font-weight:500;line-height:1.35}.review-task-copy h3 em{font-size:50px;font-weight:600;margin-right:6px}.review-subjects{display:flex;flex-wrap:wrap;gap:14px;margin:9px 0 21px;color:#dce3ee;font-size:14px}.review-subjects>span{display:flex;gap:6px;align-items:center}.review-subjects strong{color:#fff;font-weight:500}.review-subjects i{width:5px;height:5px;border-radius:50%;background:#b58b65}.review-subjects i.physics{background:#99b6d1}.review-subjects i.english{background:#d6c6b6}.review-cta{background:#fff;color:var(--primary);border-color:#fff;min-height:40px;padding:7px 14px}.review-cta:hover:not(:disabled){background:#e8edf4;border-color:#e8edf4}.review-ring{width:144px;height:144px;flex:none;border-radius:50%;padding:7px;background:conic-gradient(#c49b76 var(--progress),#506078 0)}.review-ring>div{width:100%;height:100%;border-radius:50%;background:var(--primary);display:flex;flex-direction:column;align-items:center;justify-content:center}.review-ring strong{font-size:34px;font-weight:500;line-height:1.25}.review-ring small{font-size:17px;margin-left:2px}.review-ring span{font-size:13px;color:#dce3ee;margin-top:5px}.quick-capture{padding:17px 18px 12px;height:250px}.quick-capture .section-heading{margin-bottom:12px}.quick-capture .section-heading>.icon{color:var(--ink-muted)}.capture-preview{padding:10px 12px;border:1px solid var(--line);border-radius:var(--radius-sm);background:#fafbfc;margin-bottom:12px}.capture-preview>span{font-size:13px;color:var(--ink-muted)}.capture-preview p{font-size:14px;margin:4px 0}.capture-preview>div{display:flex;justify-content:space-between;font-size:13px;color:var(--ink-soft)}.capture-preview i{font-style:normal;color:var(--copper-ink)}.capture-other{display:flex;justify-content:center;align-items:center;gap:14px;font-size:13px;color:var(--ink-soft);margin-top:7px}.capture-other>span{color:var(--line-strong)}.capture-other a:hover{color:var(--primary);text-decoration:underline}.study-summary{display:flex;padding:19px 0 20px;margin-bottom:6px}.study-summary>div{flex:1;display:flex;align-items:center;gap:16px;padding:0 24px;border-right:1px solid #d6dbe3}.study-summary>div:first-child{padding-left:2px}.study-summary>div:last-child{border-right:0}.study-summary>div>span{font-size:14px;color:var(--ink-muted)}.study-summary strong{font-size:25px;font-weight:500}.study-summary small{font-size:13px;font-weight:400;margin-left:5px;color:var(--ink-muted)}.summary-note{color:var(--ink-muted);font-size:13px;font-weight:400;margin-left:9px}.recent-section,.dashboard-insights{min-width:0}.weekly-activity{padding:16px 18px}.weekly-activity h2{font-size:16px}.activity-bars{display:flex;gap:8px;justify-content:space-between}.activity-day{flex:1;min-width:0;text-align:center;color:var(--ink-muted);font-size:13px}.activity-bar-space{height:62px;display:flex;align-items:flex-end;justify-content:center;margin:5px 0}.activity-bar-space i{display:block;width:13px;background:#74849b;border-radius:3px 3px 0 0}.activity-bar-space i.empty{background:var(--line)}.activity-day small{font-size:13px}.weak-section{margin-top:20px}.weak-section h2{font-size:16px}.weak-item{display:flex;gap:8px;align-items:center;border-bottom:1px solid var(--line);padding:10px 0;font-size:14px}.weak-item>span{flex:1}.weak-item strong{font-weight:400;color:var(--ink-muted)}.weak-item>.icon{color:var(--ink-muted)}.continue-link{display:flex;align-items:center;gap:9px;font-size:14px;color:var(--primary);padding:16px 0}.continue-link span{flex:1}.questions-page .page-heading{margin-bottom:16px}.question-toolbar{display:grid;grid-template-columns:minmax(220px,1fr) auto;gap:12px;padding:12px 16px 0;margin-bottom:14px}.search-field{display:flex;align-items:center;gap:8px;color:var(--ink-muted);border:1px solid var(--line);border-radius:var(--radius-sm);padding:0 10px}.search-field input{border:0!important;padding:6px 0!important;min-height:39px!important;flex:1}.basic-filters{display:flex;gap:8px}.basic-filters select{width:132px}.basic-filters .button{font-size:14px;padding-inline:12px}.advanced-filters{grid-column:1 / -1;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;padding-top:12px;border-top:1px solid var(--line)}.list-controls{grid-column:1 / -1;display:flex;justify-content:space-between;align-items:center;gap:12px;padding:8px 0;border-top:1px solid var(--line)}.list-control-left{display:flex;gap:18px;align-items:center}.list-controls select{font-size:14px;min-height:34px;width:auto;padding:3px 26px 3px 8px}.result-count{font-size:14px;color:var(--ink-muted)}.question-list{overflow:hidden}.question-list[aria-busy=true]{opacity:.65;transition:opacity .16s}.question-row{display:flex;align-items:center;gap:14px;padding:15px 18px;border-bottom:1px solid var(--line);transition:background .16s;min-height:132px}.question-row:last-child{border-bottom:0}.question-row:hover{background:#fafbfc}.question-row.selected{background:var(--primary-tint)}.subject-mark{display:grid;place-items:center;width:32px;height:36px;border-radius:5px;color:#465a7e;background:#edf1f8;font-size:16px;flex:none}.subject-mark.physics{color:#695582;background:#f1eef7}.subject-mark.english{color:#916338;background:#f8f0e8}.question-row-main{min-width:0;flex:1;display:block}.question-meta{display:flex;align-items:center;gap:9px;flex-wrap:wrap;color:var(--ink-muted);font-size:13px;margin-bottom:5px}.subject-label{color:#465a7e;font-weight:500}.subject-label.physics{color:#695582}.subject-label.english{color:#916338}.question-row-main>.rich-text{display:-webkit-box;-webkit-box-orient:vertical;-webkit-line-clamp:2;line-clamp:2;overflow:hidden;font-size:17px;line-height:1.75;max-height:60px}.question-row .rich-text p{margin:0}.row-foot{display:flex;gap:12px;align-items:center;flex-wrap:wrap;font-size:13px;color:var(--ink-muted);margin-top:7px;line-height:1.4}.cause-label{color:#86603f}.view-full{display:inline-flex;align-items:center;gap:2px;margin-left:auto;color:var(--primary)}.question-thumb{width:72px;height:66px;flex:none;border:1px solid var(--line);border-radius:5px;overflow:hidden;background:#fafbfc}.question-thumb img{width:100%;height:100%;object-fit:cover}.question-row.compact{min-height:100px;padding:13px 16px;gap:12px}.question-row.compact .question-row-main>.rich-text{font-size:17px}.question-row.compact>.icon{color:var(--ink-muted)}.question-row .status{flex:none}.favorite.active .icon{fill:#e5d0bb}.is-assistant .workspace{height:100dvh;display:flex;flex-direction:column}.is-assistant .topbar,.is-assistant .demo-strip{flex:none}.is-assistant #main-content{flex:1;min-height:0;width:100%;display:flex;padding-bottom:20px}.is-assistant .workspace-footer{display:none}.assistant-page{display:flex;flex:1;min-width:0;min-height:0;flex-direction:column}.assistant-page>.page-heading{margin-bottom:14px;flex:none}.assistant-layout{flex:1;min-height:0;display:grid;grid-template-columns:218px minmax(0,1fr);overflow:hidden}.assistant-layout.history-collapsed{grid-template-columns:minmax(0,1fr)}.conversation-sidebar{padding:16px 12px;border-right:1px solid var(--line);background:#fafbfc;display:flex;flex-direction:column;min-width:0;overflow-y:auto}.conversation-sidebar>.button{font-size:14px;padding-inline:7px}.conversation-sidebar .sidebar-label{margin:25px 8px 8px}.conversation-item{width:100%;display:flex;align-items:flex-start;gap:8px;text-align:left;color:var(--ink-soft);font-size:14px;padding:11px 9px;border-radius:5px;transition:background .16s}.conversation-item>.icon{margin-top:3px}.conversation-item>span{overflow:hidden;text-overflow:ellipsis;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical}.conversation-item.active{background:var(--primary-tint);color:var(--primary)}.conversation-item:hover{background:var(--panel)}.conversation-hint{color:var(--ink-muted);font-size:13px;padding:28px 8px 0;margin-top:auto}.chat-workspace{display:flex;min-width:0;min-height:0;flex-direction:column}.chat-heading{display:flex;justify-content:space-between;align-items:center;padding:9px 16px;border-bottom:1px solid var(--line);flex:none}.chat-heading>div{display:flex;align-items:center;gap:9px;min-width:0}.chat-heading strong{white-space:nowrap;overflow:hidden;text-overflow:ellipsis;font-size:15px;font-weight:500}.chat-heading .small{white-space:nowrap}.chat-question-link{display:flex;gap:10px;align-items:center;padding:8px 18px;border-bottom:1px solid var(--line);flex:none}.chat-question-link label{flex:none;font-size:13px!important;color:var(--ink-muted)}.chat-question-link select{font-size:14px;flex:1;min-height:34px;padding-block:3px}.chat-messages{flex:1;min-height:0;overflow-y:auto;overscroll-behavior:contain;padding:20px 24px;scroll-padding:18px}.linked-question-summary{border:1px solid var(--line);border-radius:5px;padding:12px 15px;margin-bottom:24px}.linked-question-summary>div:first-child{display:flex;align-items:center;gap:9px;color:var(--ink-muted);font-size:13px;margin-bottom:5px}.linked-question-summary .text-button{margin-left:auto;font-size:13px;min-height:26px}.linked-question-summary .rich-text{font-size:17px}.stem-summary{display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden}.linked-options{margin-top:10px}.chat-empty{text-align:center;padding:24px 12px}.chat-monogram{display:grid;place-items:center;color:var(--primary);margin:0 auto 15px;width:44px;height:44px;background:var(--primary-tint);border-radius:8px}.chat-empty h2{font-size:19px}.chat-empty>p{color:var(--ink-muted);font-size:15px;margin-top:9px}.chat-message{display:flex;gap:12px;margin-bottom:24px}.chat-message-avatar{display:grid;place-items:center;width:29px;height:29px;background:var(--primary-tint);color:var(--primary);font-size:14px;border-radius:5px;flex:none}.chat-message.user .chat-message-avatar{color:var(--copper-ink);background:var(--amber-tint)}.message-body{flex:1;min-width:0;max-width:75ch}.message-author{font-size:13px;color:var(--ink-muted);margin:0 0 8px}.message-body>.rich-text{font-size:17px;line-height:1.85}.message-body .rich-text ol{padding-left:24px}.message-body .rich-text li{margin-bottom:8px}.chat-message.user .message-body>.rich-text{background:#f3f4f6;padding:9px 13px;border-radius:5px;display:inline-block}.message-attachment,.message-state{display:flex;gap:7px;align-items:center;font-size:13px;color:var(--ink-muted);margin-top:10px}.generating-label{display:flex;align-items:center;gap:8px;color:var(--ink-muted)}.chat-composer{flex:none;padding:12px 18px 0;border-top:1px solid var(--line);background:var(--paper)}.chat-prompts{display:flex;gap:7px;margin-bottom:10px;overflow-x:auto;padding-bottom:2px}.chat-prompts button{white-space:nowrap;font-size:13px;padding:5px 9px;min-height:32px;border:1px solid var(--line);border-radius:5px;color:var(--ink-soft);transition:background .15s}.chat-prompts button:hover{background:var(--panel)}.chat-composer>form{border:1px solid var(--line-strong);border-radius:6px;padding:10px;transition:border-color .16s}.chat-composer>form:focus-within{border-color:var(--primary)}.chat-composer textarea{border:0;padding:0;resize:none;min-height:48px;font-size:15px;line-height:1.6}.composer-actions{display:flex;align-items:center;gap:9px;margin-top:4px}.composer-actions .check-label{font-size:13px;color:var(--ink-muted)}.composer-hint{margin-left:auto;font-size:13px;color:var(--ink-muted)}.chat-disclaimer{font-size:13px;color:var(--ink-muted);text-align:center;margin:6px 0}.chat-error{display:flex;align-items:center;justify-content:space-between;gap:9px;background:var(--clay-tint);color:var(--clay);padding:8px 12px;border-radius:5px;margin-bottom:8px;font-size:14px}.attached-file{display:flex;align-items:center;gap:7px;font-size:13px;margin-bottom:6px}.history-toggle{display:none}@media(max-width:1199px){.topbar,#main-content{padding-inline:24px}.global-search{display:none}.dashboard-top,.dashboard-bottom{grid-template-columns:minmax(0,1fr) 260px;gap:18px}.review-feature{padding-inline:20px}.review-ring{width:112px;height:112px}.review-ring strong{font-size:28px}.review-ring span{font-size:13px}.review-task-copy h3{font-size:22px}.review-task-copy h3 em{font-size:44px}.study-summary>div{display:block;padding-inline:18px}.study-summary strong{display:block}.question-toolbar{grid-template-columns:1fr}.basic-filters{grid-row:2}.basic-filters select{flex:1;width:auto}.assistant-layout{grid-template-columns:188px minmax(0,1fr)}.chat-messages{padding-inline:18px}.chat-heading .small,.composer-hint{display:none}.composer-actions>.button:last-child{margin-left:auto}.question-row.compact>.status{display:none}}@media(max-width:1023px){.sidebar{display:none}.workspace{margin-left:0}.icon-button.mobile-menu{display:inline-flex}.dashboard-top,.dashboard-bottom{grid-template-columns:minmax(0,1fr) 280px}}@media(max-width:767px){.topbar{height:60px;padding-inline:14px;gap:8px}.topbar-start,.topbar-actions{gap:8px}.topbar-title{font-size:14px}.topbar-actions>.button{font-size:13px;min-height:36px;padding:6px 9px;gap:4px}.demo-badge{font-size:13px;padding-inline:5px;gap:4px}.demo-badge>.icon{display:none}.demo-strip{padding:10px 16px;flex-wrap:wrap}#main-content{padding:20px 16px 24px}.page-heading{gap:12px;margin-bottom:18px;align-items:flex-start}.page-heading h1{font-size:24px}.page-heading p{font-size:15px}.page-heading>.date-stamp{display:none}.workspace-footer{margin-inline:16px;font-size:13px}.workspace-footer>span:last-child{display:none}.home-view{display:flex;flex-direction:column}.home-view>.page-heading{order:1}.dashboard-top{display:contents}.dashboard-bottom{display:flex;flex-direction:column;gap:0;order:4}.review-feature{order:2}.home-view>.study-summary{order:3}.review-feature{width:100%;height:242px;padding:18px 20px}.review-feature-content{gap:12px;padding-top:14px}.review-task-copy h3{font-size:22px}.review-task-copy h3 em{font-size:43px}.review-subjects{gap:11px;margin-bottom:20px}.review-ring{width:102px;height:102px;padding:5px}.review-ring strong{font-size:27px}.review-ring small{font-size:14px}.review-ring span{font-size:13px}.dashboard-top .quick-capture{order:5;width:100%;height:auto;margin-top:20px}.study-summary{padding:18px 0 20px;margin-bottom:0}.study-summary>div{padding-inline:13px}.study-summary>div>span{font-size:13px}.study-summary strong{font-size:24px}.summary-note{display:none}.recent-section{width:100%}.dashboard-insights{width:100%;margin-top:22px}.weekly-activity{padding:16px 20px}.activity-bar-space{height:70px}.question-row{display:grid;grid-template-columns:18px minmax(0,1fr) auto;gap:8px 10px;padding:14px 12px;align-items:start;min-height:0}.question-row>.row-select{grid-column:1;grid-row:1;margin-top:4px}.question-row>.subject-mark{display:none}.question-row-main{grid-column:2;grid-row:1 / 3}.question-meta{gap:5px 8px;margin-bottom:6px;font-size:13px}.question-row-main>.rich-text{font-size:17px;max-height:90px;-webkit-line-clamp:3;line-clamp:3}.question-row>.status{grid-column:3;grid-row:1;align-self:start;font-size:13px}.question-row>.favorite{grid-column:3;grid-row:2;justify-self:end;width:34px;height:34px}.question-thumb{grid-column:3;grid-row:3;width:60px;height:48px}.row-foot{gap:5px 10px;margin-top:8px}.row-foot .view-full{width:100%;margin-left:0}.row-foot time{white-space:nowrap}.question-row.compact{grid-template-columns:minmax(0,1fr) 14px;padding:13px 15px;min-height:105px}.question-row.compact .question-row-main{grid-column:1;grid-row:1}.question-row.compact>.icon{grid-column:2;grid-row:1;align-self:center}.question-row.compact>.status{display:none}.question-toolbar{padding:12px 12px 0;gap:10px}.basic-filters{flex-wrap:wrap;gap:7px}.basic-filters select{width:100px;flex:1;padding-left:7px;font-size:14px}.basic-filters .button{padding-inline:8px;gap:4px}.list-controls{flex-wrap:wrap;padding:9px 0;gap:6px}.list-control-left{flex-wrap:wrap;gap:8px 14px}.list-controls>.row-actions{width:100%;justify-content:space-between}.advanced-filters{grid-template-columns:repeat(2,minmax(0,1fr))}.is-assistant #main-content{padding:14px 10px 10px}.assistant-page>.page-heading{align-items:center;margin:0 4px 10px}.assistant-page>.page-heading h1{font-size:24px}.history-toggle{display:inline-flex;font-size:14px;min-height:36px;padding:6px 10px}.assistant-layout{grid-template-columns:minmax(0,1fr)}.conversation-sidebar,.history-collapse{display:none!important}.chat-heading{padding:7px 10px}.chat-heading strong{font-size:14px}.chat-question-link{padding:7px 10px;gap:7px}.chat-question-link select{font-size:14px}.chat-messages{padding:14px 12px}.linked-question-summary{padding:9px 11px;margin-bottom:18px}.linked-question-summary>div:first-child{flex-wrap:wrap;gap:5px}.linked-question-summary .rich-text{font-size:17px}.chat-message{gap:8px;margin-bottom:22px}.chat-message-avatar{width:25px;height:25px;font-size:13px}.message-body>.rich-text{font-size:17px}.chat-composer{padding:9px 10px 0}.chat-prompts{margin-bottom:7px}.chat-prompts button{min-height:36px}.chat-composer>form{padding:8px}.chat-composer textarea{min-height:42px}.chat-disclaimer{font-size:13px;margin:5px 0}.composer-actions{gap:7px}.chat-empty{padding:18px 2px}.chat-empty h2{font-size:18px}}@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important;scroll-behavior:auto!important}}.sidebar .brand,.sidebar-label,.sidebar-bottom{flex-shrink:0}.sidebar .main-nav{min-height:0;overflow-y:auto;flex:1;padding-right:2px}.sidebar .main-nav>a{flex-shrink:0}.sidebar-bottom{padding-top:14px}.sidebar .main-nav>a:nth-child(8),.sidebar .main-nav>a:nth-child(12){margin-top:10px}.role-shell .main-nav>a{margin-top:0}.role-boundary{padding:0 12px}.role-switcher{margin:0;flex:none}.role-switcher select{min-height:36px;width:112px;padding:5px 8px;font-size:13px;background:var(--paper)}.credit-link{color:var(--primary);font-size:14px;white-space:nowrap}.demo-role-entries{display:flex;justify-content:center;gap:28px;margin-top:20px}.extension-page{min-width:0;max-width:1400px;margin-inline:auto}.extension-page>.page-heading{margin-bottom:22px}.extension-page .page-heading h1{font-size:26px}.extension-page .page-heading p{max-width:64ch}.extension-page h2{font-size:18px}.extension-page h3{font-size:16px}.compact-section{padding:24px;margin-bottom:20px;min-width:0}.compact-section>h2{margin-bottom:18px}.compact-section>h3{margin-top:24px;margin-bottom:12px}.compact-section form>label{margin-bottom:16px}.compact-section form .form-grid{margin-bottom:16px}.section-heading{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-bottom:18px}.section-heading h2,.section-heading h3{margin:0}.section-heading>div{min-width:0}.section-heading p{margin:5px 0 0}.resource-error{padding:14px 18px;border:1px solid var(--line-strong);border-radius:var(--radius-sm);background:var(--paper);color:var(--clay);display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:20px}.inline-label{display:inline-flex;align-items:center;gap:10px;margin:0;font-size:14px;font-weight:400}.inline-label select{width:auto;min-width:110px}.compact-form,.admin-filter-bar{display:flex;align-items:flex-end;gap:16px;margin-bottom:20px;flex-wrap:wrap}.compact-form label,.admin-filter-bar label{flex:1;min-width:150px;margin:0}.compact-form .button{margin-bottom:1px}.admin-filter-bar label:first-child{flex:2}.table-scroll,.comparison-wrap{overflow-x:auto;max-width:100%;overscroll-behavior-x:contain}.data-table{width:100%;border-collapse:collapse;text-align:left;font-size:14px}.table-scroll .data-table{min-width:620px}.data-table th{color:var(--ink-soft);background:var(--canvas);font-weight:500}.data-table th,.data-table td{padding:13px 14px;border-bottom:1px solid var(--line);vertical-align:top}.data-table tr:last-child td{border-bottom:0}.data-table td .button{white-space:nowrap}.cell-sub{display:block;color:var(--ink-muted);margin-top:4px;font-size:13px;font-weight:400;overflow-wrap:anywhere}.numeric{font-variant-numeric:tabular-nums;white-space:nowrap}.id-text{overflow-wrap:anywhere}.state-badge{display:inline-flex;align-items:center;padding:3px 8px;border-radius:var(--radius-sm);background:var(--primary-tint);color:var(--primary);font-size:13px;line-height:1.6;white-space:nowrap;font-weight:400}.state-badge.failed,.state-badge.disabled,.state-badge.flagged{color:var(--clay);background:var(--clay-tint)}.state-badge.refunding,.state-badge.waiting{color:var(--copper-ink);background:var(--amber-tint)}.state-badge.closed,.state-badge.cancelled,.state-badge.expired{background:var(--canvas);color:var(--ink-soft)}.status.verifying{color:var(--copper-ink)}.status.reinforce{color:var(--clay)}.mastery-bar .verifying{background:var(--copper)}.mastery-bar .reinforce{background:var(--clay)}.account-band{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:32px;align-items:center;background:var(--primary);color:var(--paper);border-radius:var(--radius-md);padding:30px 32px;margin-bottom:28px}.account-band .band-label,.account-band p{color:#dbe2ed;font-size:14px}.account-band h2{color:var(--paper);font-size:26px;margin:6px 0 10px}.account-band p{margin-bottom:0}.band-note{display:block;color:#f0d8c2;font-size:14px;margin-top:8px}.band-balance{min-width:220px;padding-left:32px;border-left:1px solid #ffffff35}.band-balance>span{color:#dbe2ed;font-size:14px}.band-balance strong{display:block;font-size:38px;line-height:1.4;font-weight:500}.band-balance strong small{font-size:15px;margin-left:8px}.band-balance a{font-size:13px;color:#e3e8f0}.plan-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px;margin-bottom:24px}.plan-option{padding:28px;display:flex;flex-direction:column}.plan-option.paid-plan{border-color:var(--primary)}.plan-name{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap}.plan-price{font-size:34px;font-weight:600;margin:20px 0 8px;line-height:1.5;color:var(--primary)}.plan-price>span{font-size:14px;color:var(--ink-muted);font-weight:400;margin-left:10px}.plan-credit{color:var(--ink-soft);font-size:15px}.feature-list{padding:0;margin:12px 0 26px;list-style:none}.feature-list li{display:flex;gap:9px;align-items:flex-start;margin-bottom:11px}.feature-list .icon{margin-top:4px;color:var(--primary)}.plan-option .feature-list{flex:1}.usage-strip{display:flex;align-items:center;gap:15px 24px;flex-wrap:wrap;border-block:1px solid var(--line);padding:22px 0;margin-bottom:18px;font-size:14px}.usage-strip h2{font-size:16px}.usage-strip span strong{font-weight:500;margin-left:4px}.wallet-summary{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;padding:24px;margin-bottom:22px}.wallet-summary>div>span{color:var(--ink-soft);font-size:14px}.wallet-summary strong{display:block;font-size:32px;font-weight:500;color:var(--primary)}.wallet-summary strong small{margin-left:8px;font-weight:400}.wallet-summary p{grid-column:1 / -1;color:var(--ink-muted);font-size:14px;margin:0}.record-line{display:flex;align-items:center;justify-content:space-between;gap:16px;border-bottom:1px solid var(--line);padding:14px 0;overflow-wrap:anywhere}.record-line:last-child{border-bottom:0}.record-line>div:first-child{flex:1;min-width:0}.record-line strong{font-weight:500}.record-line small{display:block;color:var(--ink-muted);margin-top:4px}.demo-lab{margin-top:22px;border-top:1px solid var(--line);padding-top:18px}details>summary{cursor:pointer;color:var(--primary);font-size:14px;padding:8px 0}.demo-lab[open]>summary{margin-bottom:12px}.order-line{display:grid;grid-template-columns:minmax(0,1fr) auto auto auto;gap:20px;align-items:center;padding:20px 0;border-bottom:1px solid var(--line)}.order-line:last-child{border:0}.order-line strong{font-size:16px;font-weight:500}.order-line small{display:block;color:var(--ink-muted);font-size:13px;margin-top:6px;overflow-wrap:anywhere}.commerce-detail-grid{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(320px,.9fr);gap:24px;align-items:start}.detail-pairs{display:grid;grid-template-columns:100px minmax(0,1fr);gap:16px;margin-block:22px}.detail-pairs dt{color:var(--ink-muted);font-size:14px}.detail-pairs dd{margin:0;overflow-wrap:anywhere}.amount{font-size:27px;font-weight:500;color:var(--primary)}.event-timeline{list-style:none;margin:24px 0 0;padding:0}.event-timeline li{display:grid;gap:4px;margin-bottom:18px;padding-bottom:14px;border-bottom:1px solid var(--line)}.event-timeline time{font-size:13px;color:var(--ink-muted)}.checkout>label{display:grid;gap:7px;margin-block:18px}.checkout>.text-button{margin-top:18px}.demo-payment-options{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin:20px 0}.payment-state{display:flex;align-items:center;gap:10px;padding:16px 0}.diagnosis-layout{display:grid;grid-template-columns:280px minmax(0,1fr);gap:22px;align-items:start}.diagnosis-selector{padding:18px;position:sticky;top:90px}.diagnosis-choices{max-height:64vh;overflow-y:auto;margin-top:16px}.diagnosis-choices>button{display:block;width:100%;text-align:left;border-bottom:1px solid var(--line);padding:14px 10px;border-radius:var(--radius-sm)}.diagnosis-choices>button.selected,.feedback-list>button.selected{background:var(--primary-tint)}.diagnosis-choices>button:hover{background:var(--canvas)}.diagnosis-choices>button span{display:block;font-size:13px;color:var(--ink-soft);margin-bottom:6px}.diagnosis-choices strong{font-weight:400;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;line-height:1.7}.ai-suggestion{background:var(--canvas);padding:18px;border-radius:var(--radius-sm);margin-bottom:22px}.ai-suggestion p{margin:8px 0}.plain-fieldset{padding:0;margin:18px 0;border:0}.plain-fieldset legend{padding:0;margin-bottom:10px;font-size:14px;color:var(--ink-soft)}.check-row{display:flex;gap:10px 18px;flex-wrap:wrap;align-items:center}.evidence-progress{display:flex;gap:16px;flex-wrap:wrap;padding:15px 0}.evidence-progress span{flex:1;min-width:130px;border:1px solid var(--line);padding:14px;border-radius:var(--radius-sm)}.evidence-progress strong{display:block;margin-top:8px;font-size:22px;color:var(--primary)}.report-toolbar{display:flex;align-items:center;flex-wrap:wrap;gap:20px;margin-bottom:24px}.print-surface{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius-md);padding:34px;color:var(--ink)}.report-title{display:flex;align-items:flex-start;justify-content:space-between;gap:16px;padding-bottom:24px;border-bottom:1px solid var(--line)}.report-title h2,.printable-book>header h2{font-size:24px}.report-title p,.printable-book>header p{color:var(--ink-muted);font-size:14px;margin:8px 0 0}.report-metrics{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;padding:28px 0}.report-metrics>div>span{color:var(--ink-soft);font-size:14px}.report-metrics strong{display:block;font-size:29px;font-weight:500;margin-top:8px}.report-metrics strong small{font-size:16px;font-weight:400}.report-scope{color:var(--ink-muted);font-size:13px;border-bottom:1px solid var(--line);padding-bottom:24px}.learning-report>section{padding:12px 0 24px}.learning-report h3{margin-bottom:18px;font-size:18px}.report-weak-list>a{display:flex;justify-content:space-between;align-items:center;gap:16px;padding:13px 0;border-bottom:1px solid var(--line)}.report-weak-list>a>span:last-child{display:flex;align-items:center;gap:8px;color:var(--ink-muted);font-size:14px}.report-two-columns{display:grid;grid-template-columns:1fr 1fr;gap:32px;margin:16px 0 30px}.learning-suggestions{padding-left:22px}.learning-suggestions li{padding-left:4px;margin-bottom:12px}.learning-report footer,.printable-book footer{border-top:1px solid var(--line);padding-top:20px;color:var(--ink-muted);font-size:13px}.knowledge-pill{display:inline-flex;gap:6px;flex-wrap:wrap;align-items:center;padding:5px 10px;border:1px solid var(--line);border-radius:var(--radius-sm);font-size:14px;margin:0 8px 8px 0}.knowledge-pill small{color:var(--ink-muted)}.printable-book{max-width:900px;margin-inline:auto}.printable-book>header{border-bottom:1px solid var(--line);padding-bottom:24px}.print-question{padding:24px 0;border-bottom:1px solid var(--line)}.print-question h3{font-size:15px;margin-bottom:14px}.print-question .rich-text{font-size:17px;line-height:1.85}.print-question>img{max-height:320px;object-fit:contain;margin:16px 0}.answer-space{min-height:140px;border-bottom:1px dashed var(--line-strong)}.print-answer{margin-top:20px;padding-top:18px;border-top:1px solid var(--line)}.print-answer h4{margin:14px 0 8px;font-size:15px;font-weight:500}.empty-copy{padding:36px 24px;color:var(--ink-muted);text-align:center}.feedback-layout{display:grid;grid-template-columns:320px minmax(0,1fr);gap:22px;align-items:start}.feedback-list{overflow:hidden}.feedback-list>button{padding:18px;width:100%;text-align:left;border-bottom:1px solid var(--line)}.feedback-list>button>div{display:flex;gap:12px;justify-content:space-between;align-items:center}.feedback-list>button p{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;margin:10px 0;font-weight:400}.feedback-list small{color:var(--ink-muted);font-size:13px}.feedback-description{white-space:pre-wrap;overflow-wrap:anywhere}.feedback-detail>details{margin-block:18px;padding:12px 16px;background:var(--canvas);border-radius:var(--radius-sm)}.feedback-detail>.muted{display:block;overflow-wrap:anywhere}.reply-thread{margin:28px 0;padding:0;list-style:none}.reply-thread li{padding-bottom:18px;margin-bottom:18px;border-bottom:1px solid var(--line)}.reply-thread li>div{display:flex;gap:16px;align-items:center;justify-content:space-between}.reply-thread time{font-size:13px;color:var(--ink-muted)}.reply-thread p{white-space:pre-wrap;overflow-wrap:anywhere;margin:12px 0 0}.attachment-chip{display:inline-flex;align-items:center;gap:8px;border:1px solid var(--line);padding:2px 10px;border-radius:var(--radius-sm)}.summary-line{display:flex;gap:32px;padding:22px 24px;margin-bottom:22px}.summary-line>div{display:flex;gap:14px;align-items:baseline}.summary-line strong{font-size:28px;font-weight:500;color:var(--primary)}.summary-line span{font-size:14px;color:var(--ink-soft)}.class-line{padding:20px 0;border-bottom:1px solid var(--line);display:flex;align-items:center;gap:20px;justify-content:space-between}.class-line p{font-size:14px;color:var(--ink-soft);margin:8px 0 0}.class-code{-webkit-user-select:all;user-select:all;letter-spacing:.06em;margin-left:8px;color:var(--primary)}.public-question-choice{display:flex;gap:14px;align-items:flex-start;padding:15px 0;border-bottom:1px solid var(--line);margin:0}.public-question-choice>input{margin-top:8px;flex:none}.public-question-choice .rich-text{min-width:0;font-weight:400}.assignment-block{padding:24px 0;border-bottom:1px solid var(--line)}.assignment-block:last-child{border-bottom:0;padding-bottom:0}.assignment-block:first-of-type{padding-top:0}.admin-metrics{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:18px;padding:10px 0 24px}.admin-metrics>div{border-right:1px solid var(--line);padding-right:12px}.admin-metrics>div:last-child{border:0}.admin-metrics span{color:var(--ink-soft);font-size:14px}.admin-metrics strong{display:block;margin-top:12px;font-size:27px;font-weight:500;color:var(--primary)}.admin-metrics strong small{margin-left:5px;font-size:13px}.distribution-line{display:flex;gap:36px;border-top:1px solid var(--line);padding-top:18px}.distribution-line strong{margin-left:10px}.admin-overview-columns{display:grid;grid-template-columns:1.2fr 1fr;gap:22px}.content-review-row{display:grid;grid-template-columns:minmax(0,1fr) auto auto;gap:20px;align-items:start;padding:22px 0;border-bottom:1px solid var(--line)}.content-review-row .rich-text{font-size:17px}.taxonomy-list{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;margin-bottom:28px}.taxonomy-list h3{margin-bottom:16px}.confirm-block{padding:18px;background:var(--canvas);border-radius:var(--radius-sm)}.permission-page{max-width:660px;margin:10vh auto;padding:24px}.permission-page p{margin:20px 0}.permission-page .role-switcher{display:block;margin-top:24px}.extension-page hr,.modal-content hr{border:0;border-top:1px solid var(--line);margin:24px 0}@media(max-width:1250px){.topbar-actions .global-search,.credit-link{display:none}.diagnosis-layout{grid-template-columns:240px minmax(0,1fr)}.admin-metrics{grid-template-columns:repeat(3,minmax(0,1fr));row-gap:26px}}@media(max-width:900px){.diagnosis-layout,.feedback-layout{grid-template-columns:1fr}.diagnosis-selector{position:static}.diagnosis-choices{max-height:200px}.commerce-detail-grid,.admin-overview-columns{grid-template-columns:1fr}.summary-line{flex-wrap:wrap;gap:12px 24px}.report-metrics{grid-template-columns:1fr 1fr}.feedback-list{max-height:300px;overflow-y:auto}}@media(max-width:600px){.table-scroll:has(.mobile-records){overflow:visible}.table-scroll .mobile-records{min-width:0}.mobile-records,.mobile-records tbody{display:block}.mobile-records thead{position:absolute;width:1px;height:1px;padding:0;overflow:hidden;clip-path:inset(50%);white-space:nowrap}.mobile-records tbody tr{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px 18px;border-bottom:1px solid var(--line);padding:18px 0}.mobile-records tbody tr:last-child{border-bottom:0}.mobile-records td{display:block;border:0;padding:0;overflow-wrap:anywhere;white-space:normal}.mobile-records td:first-child,.mobile-records td[colspan]{grid-column:1 / -1}.mobile-records td[data-label]:before{content:attr(data-label);display:block;color:var(--ink-soft);font-size:13px;margin-bottom:5px}.table-scroll:not(:has(.mobile-records)):before{content:"左右滑动查看完整表格 →";display:block;position:sticky;left:0;width:fit-content;font-size:13px;color:var(--ink-soft);padding:8px 0}.topbar-start .demo-badge,.topbar-actions .role-switcher{display:none}.topbar-start .topbar-title{max-width:105px;overflow:hidden;white-space:nowrap;text-overflow:ellipsis}.role-shell .topbar>.role-switcher{display:block}.extension-page>.page-heading{align-items:flex-start;gap:15px}.extension-page .page-heading h1{font-size:24px}.compact-section,.plan-option{padding:20px 18px}.compact-section form .form-grid{grid-template-columns:1fr}.account-band{grid-template-columns:1fr;gap:22px;padding:24px}.band-balance{border:0;border-top:1px solid #ffffff35;padding:18px 0 0;min-width:0}.band-balance strong{display:inline-block;margin:0 14px;font-size:32px}.band-balance a{display:block;margin-top:10px}.plan-grid{grid-template-columns:1fr}.plan-price{font-size:30px}.wallet-summary{padding:20px 16px;gap:12px}.wallet-summary strong{font-size:27px}.wallet-summary>div>span{font-size:13px}.wallet-summary strong small{margin-left:3px}.order-line{grid-template-columns:1fr auto;gap:12px}.order-line>div{grid-column:1 / -1}.order-line>.text-button{display:none}.detail-pairs{grid-template-columns:75px minmax(0,1fr);gap:14px}.record-line{flex-wrap:wrap;gap:10px}.record-line>div:first-child{flex-basis:65%}.inline-label{flex-wrap:wrap}.inline-label select{min-width:100px}.compact-form,.admin-filter-bar{gap:12px}.compact-form label,.admin-filter-bar label{min-width:130px}.compact-form>button{width:100%}.print-surface{padding:24px 18px}.report-title{flex-direction:column}.report-two-columns{grid-template-columns:1fr;gap:28px}.report-weak-list>a{gap:12px;align-items:flex-start}.report-weak-list>a>span:last-child{text-align:right}.admin-metrics{grid-template-columns:1fr 1fr}.admin-metrics strong{font-size:25px}.class-line{align-items:flex-start;flex-direction:column}.content-review-row{grid-template-columns:1fr auto}.content-review-row>div:first-child{grid-column:1 / -1}.taxonomy-list{grid-template-columns:1fr;gap:22px}.reply-thread li>div{align-items:flex-start;flex-direction:column;gap:4px}.resource-error{flex-wrap:wrap}}@media(prefers-reduced-motion:reduce){.extension-page *,.role-shell *{animation-duration:.01ms!important;transition-duration:.01ms!important;scroll-behavior:auto!important}}@media print{@page{size:A4;margin:16mm}:root,body{background:#fff;color:#222831}.sidebar,.topbar,.workspace-footer,.demo-strip,.toast-stack,.no-print,.resource-error{display:none!important}.workspace{margin:0!important;padding:0!important;width:auto!important}#main-content{margin:0!important;padding:0!important;max-width:none!important}.extension-page{margin:0;max-width:none}.print-surface{padding:0;border:0;border-radius:0;max-width:none}.print-question{break-inside:auto}.print-question h3,.print-answer h4,.learning-report h3{break-after:avoid}.print-question img,.print-question .katex-display,.print-answer{break-inside:avoid}.print-question img{max-height:80mm}.print-surface a{color:inherit;text-decoration:none}.report-metrics,.report-two-columns{break-inside:avoid}.answer-space{min-height:42mm}.print-surface .rich-text{overflow-wrap:anywhere}.print-surface .katex-display{overflow:visible}}