@import "https://fonts.googleapis.com/css2?family=Unbounded:wght@400;600;700&family=Inter:wght@400;500;600&display=swap";@font-face{font-display:block;font-family:KaTeX_AMS;font-style:normal;font-weight:400;src:url(/assets/KaTeX_AMS-Regular-BQhdFMY1.woff2)format("woff2"),url(/assets/KaTeX_AMS-Regular-DMm9YOAa.woff)format("woff"),url(/assets/KaTeX_AMS-Regular-DRggAlZN.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Caligraphic;font-style:normal;font-weight:700;src:url(/assets/KaTeX_Caligraphic-Bold-Dq_IR9rO.woff2)format("woff2"),url(/assets/KaTeX_Caligraphic-Bold-BEiXGLvX.woff)format("woff"),url(/assets/KaTeX_Caligraphic-Bold-ATXxdsX0.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Caligraphic;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Caligraphic-Regular-Di6jR-x-.woff2)format("woff2"),url(/assets/KaTeX_Caligraphic-Regular-CTRA-rTL.woff)format("woff"),url(/assets/KaTeX_Caligraphic-Regular-wX97UBjC.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Fraktur;font-style:normal;font-weight:700;src:url(/assets/KaTeX_Fraktur-Bold-CL6g_b3V.woff2)format("woff2"),url(/assets/KaTeX_Fraktur-Bold-BsDP51OF.woff)format("woff"),url(/assets/KaTeX_Fraktur-Bold-BdnERNNW.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Fraktur;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Fraktur-Regular-CTYiF6lA.woff2)format("woff2"),url(/assets/KaTeX_Fraktur-Regular-Dxdc4cR9.woff)format("woff"),url(/assets/KaTeX_Fraktur-Regular-CB_wures.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:normal;font-weight:700;src:url(/assets/KaTeX_Main-Bold-Cx986IdX.woff2)format("woff2"),url(/assets/KaTeX_Main-Bold-Jm3AIy58.woff)format("woff"),url(/assets/KaTeX_Main-Bold-waoOVXN0.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:italic;font-weight:700;src:url(/assets/KaTeX_Main-BoldItalic-DxDJ3AOS.woff2)format("woff2"),url(/assets/KaTeX_Main-BoldItalic-SpSLRI95.woff)format("woff"),url(/assets/KaTeX_Main-BoldItalic-DzxPMmG6.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:italic;font-weight:400;src:url(/assets/KaTeX_Main-Italic-NWA7e6Wa.woff2)format("woff2"),url(/assets/KaTeX_Main-Italic-BMLOBm91.woff)format("woff"),url(/assets/KaTeX_Main-Italic-3WenGoN9.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Main-Regular-B22Nviop.woff2)format("woff2"),url(/assets/KaTeX_Main-Regular-Dr94JaBh.woff)format("woff"),url(/assets/KaTeX_Main-Regular-ypZvNtVU.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Math;font-style:italic;font-weight:700;src:url(/assets/KaTeX_Math-BoldItalic-CZnvNsCZ.woff2)format("woff2"),url(/assets/KaTeX_Math-BoldItalic-iY-2wyZ7.woff)format("woff"),url(/assets/KaTeX_Math-BoldItalic-B3XSjfu4.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Math;font-style:italic;font-weight:400;src:url(/assets/KaTeX_Math-Italic-t53AETM-.woff2)format("woff2"),url(/assets/KaTeX_Math-Italic-DA0__PXp.woff)format("woff"),url(/assets/KaTeX_Math-Italic-flOr_0UB.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_SansSerif;font-style:normal;font-weight:700;src:url(/assets/KaTeX_SansSerif-Bold-D1sUS0GD.woff2)format("woff2"),url(/assets/KaTeX_SansSerif-Bold-DbIhKOiC.woff)format("woff"),url(/assets/KaTeX_SansSerif-Bold-CFMepnvq.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_SansSerif;font-style:italic;font-weight:400;src:url(/assets/KaTeX_SansSerif-Italic-C3H0VqGB.woff2)format("woff2"),url(/assets/KaTeX_SansSerif-Italic-DN2j7dab.woff)format("woff"),url(/assets/KaTeX_SansSerif-Italic-YYjJ1zSn.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_SansSerif;font-style:normal;font-weight:400;src:url(/assets/KaTeX_SansSerif-Regular-DDBCnlJ7.woff2)format("woff2"),url(/assets/KaTeX_SansSerif-Regular-CS6fqUqJ.woff)format("woff"),url(/assets/KaTeX_SansSerif-Regular-BNo7hRIc.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Script;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Script-Regular-D3wIWfF6.woff2)format("woff2"),url(/assets/KaTeX_Script-Regular-D5yQViql.woff)format("woff"),url(/assets/KaTeX_Script-Regular-C5JkGWo-.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size1;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Size1-Regular-mCD8mA8B.woff2)format("woff2"),url(/assets/KaTeX_Size1-Regular-C195tn64.woff)format("woff"),url(/assets/KaTeX_Size1-Regular-Dbsnue_I.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size2;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Size2-Regular-Dy4dx90m.woff2)format("woff2"),url(/assets/KaTeX_Size2-Regular-oD1tc_U0.woff)format("woff"),url(/assets/KaTeX_Size2-Regular-B7gKUWhC.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size3;font-style:normal;font-weight:400;src:url(data:font/woff2;base64,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)format("woff2"),url(/assets/KaTeX_Size3-Regular-CTq5MqoE.woff)format("woff"),url(/assets/KaTeX_Size3-Regular-DgpXs0kz.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size4;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Size4-Regular-Dl5lxZxV.woff2)format("woff2"),url(/assets/KaTeX_Size4-Regular-BF-4gkZK.woff)format("woff"),url(/assets/KaTeX_Size4-Regular-DWFBv043.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Typewriter;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Typewriter-Regular-CO6r4hn1.woff2)format("woff2"),url(/assets/KaTeX_Typewriter-Regular-C0xS9mPB.woff)format("woff"),url(/assets/KaTeX_Typewriter-Regular-D3Ib7_Hf.ttf)format("truetype")}.katex{text-indent:0;text-rendering:auto;font:1.21em/1.2 KaTeX_Main,Times New Roman,serif;position:relative}.katex *{border-color:currentColor;-ms-high-contrast-adjust:none!important}.katex .katex-version:after{content:"0.17.0"}.katex .katex-mathml{clip-path:inset(50%);border:0;width:1px;height:1px;padding:0;position:absolute;overflow:hidden}.katex .katex-html>.newline{display:block}.katex .base{white-space:nowrap;width:min-content;position:relative}.katex .base,.katex .strut{display:inline-block}.katex .textbf{font-weight:700}.katex .textit{font-style:italic}.katex .textrm{font-family:KaTeX_Main}.katex .textsf{font-family:KaTeX_SansSerif}.katex .texttt{font-family:KaTeX_Typewriter}.katex .mathnormal{font-family:KaTeX_Math;font-style:italic}.katex .mathit{font-family:KaTeX_Main;font-style:italic}.katex .mathrm{font-style:normal}.katex .mathbf{font-family:KaTeX_Main;font-weight:700}.katex .boldsymbol{font-family:KaTeX_Math;font-style:italic;font-weight:700}.katex .amsrm,.katex .mathbb,.katex .textbb{font-family:KaTeX_AMS}.katex .mathcal{font-family:KaTeX_Caligraphic}.katex .mathfrak,.katex .textfrak{font-family:KaTeX_Fraktur}.katex .mathboldfrak,.katex .textboldfrak{font-family:KaTeX_Fraktur;font-weight:700}.katex .mathtt{font-family:KaTeX_Typewriter}.katex .mathscr,.katex .textscr{font-family:KaTeX_Script}.katex .mathsf,.katex .textsf{font-family:KaTeX_SansSerif}.katex .mathboldsf,.katex .textboldsf{font-family:KaTeX_SansSerif;font-weight:700}.katex .mathitsf,.katex .mathsfit,.katex .textitsf{font-family:KaTeX_SansSerif;font-style:italic}.katex .mainrm{font-family:KaTeX_Main;font-style:normal}.katex .vlist-t{border-collapse:collapse;table-layout:fixed;display:inline-table}.katex .vlist-r{display:table-row}.katex .vlist{vertical-align:bottom;display:table-cell;position:relative}.katex .vlist>span{height:0;display:block;position:relative}.katex .vlist>span>span{display:inline-block}.katex .vlist>span>.pstrut{width:0;overflow:hidden}.katex .vlist-t2{margin-right:-2px}.katex .vlist-s{vertical-align:bottom;width:2px;min-width:2px;font-size:1px;display:table-cell}.katex .vbox{flex-direction:column;align-items:baseline;display:inline-flex}.katex .hbox{width:100%}.katex .hbox,.katex .thinbox{flex-direction:row;display:inline-flex}.katex .thinbox{width:0;max-width:0}.katex .msupsub{text-align:left}.katex .mfrac>span>span{text-align:center}.katex .mfrac .frac-line{border-bottom-style:solid;width:100%;display:inline-block}.katex .hdashline,.katex .hline,.katex .mfrac .frac-line,.katex .overline .overline-line,.katex .rule,.katex .underline .underline-line{min-height:1px}.katex .mspace{display:inline-block}.katex .smash{line-height:0;display:inline}.katex .clap,.katex .llap,.katex .rlap{width:0;position:relative}.katex .clap>.inner,.katex .llap>.inner,.katex .rlap>.inner{position:absolute}.katex .clap>.fix,.katex .llap>.fix,.katex .rlap>.fix{display:inline-block}.katex .llap>.inner{right:0}.katex .clap>.inner,.katex .rlap>.inner{left:0}.katex .clap>.inner>span{margin-left:-50%;margin-right:50%}.katex .rule{border:0 solid;display:inline-block;position:relative}.katex .hline,.katex .overline .overline-line,.katex .underline .underline-line{border-bottom-style:solid;width:100%;display:inline-block}.katex .hdashline{border-bottom-style:dashed;width:100%;display:inline-block}.katex .sqrt>.root{margin-left:.277778em;margin-right:-.555556em}.katex .fontsize-ensurer.reset-size1.size1,.katex .sizing.reset-size1.size1{font-size:1em}.katex .fontsize-ensurer.reset-size1.size2,.katex .sizing.reset-size1.size2{font-size:1.2em}.katex .fontsize-ensurer.reset-size1.size3,.katex .sizing.reset-size1.size3{font-size:1.4em}.katex .fontsize-ensurer.reset-size1.size4,.katex .sizing.reset-size1.size4{font-size:1.6em}.katex .fontsize-ensurer.reset-size1.size5,.katex .sizing.reset-size1.size5{font-size:1.8em}.katex .fontsize-ensurer.reset-size1.size6,.katex .sizing.reset-size1.size6{font-size:2em}.katex .fontsize-ensurer.reset-size1.size7,.katex .sizing.reset-size1.size7{font-size:2.4em}.katex .fontsize-ensurer.reset-size1.size8,.katex .sizing.reset-size1.size8{font-size:2.88em}.katex .fontsize-ensurer.reset-size1.size9,.katex .sizing.reset-size1.size9{font-size:3.456em}.katex .fontsize-ensurer.reset-size1.size10,.katex .sizing.reset-size1.size10{font-size:4.148em}.katex .fontsize-ensurer.reset-size1.size11,.katex .sizing.reset-size1.size11{font-size:4.976em}.katex .fontsize-ensurer.reset-size2.size1,.katex .sizing.reset-size2.size1{font-size:.833333em}.katex .fontsize-ensurer.reset-size2.size2,.katex .sizing.reset-size2.size2{font-size:1em}.katex .fontsize-ensurer.reset-size2.size3,.katex .sizing.reset-size2.size3{font-size:1.16667em}.katex .fontsize-ensurer.reset-size2.size4,.katex .sizing.reset-size2.size4{font-size:1.33333em}.katex .fontsize-ensurer.reset-size2.size5,.katex .sizing.reset-size2.size5{font-size:1.5em}.katex .fontsize-ensurer.reset-size2.size6,.katex .sizing.reset-size2.size6{font-size:1.66667em}.katex .fontsize-ensurer.reset-size2.size7,.katex .sizing.reset-size2.size7{font-size:2em}.katex .fontsize-ensurer.reset-size2.size8,.katex .sizing.reset-size2.size8{font-size:2.4em}.katex .fontsize-ensurer.reset-size2.size9,.katex .sizing.reset-size2.size9{font-size:2.88em}.katex .fontsize-ensurer.reset-size2.size10,.katex .sizing.reset-size2.size10{font-size:3.45667em}.katex .fontsize-ensurer.reset-size2.size11,.katex .sizing.reset-size2.size11{font-size:4.14667em}.katex .fontsize-ensurer.reset-size3.size1,.katex .sizing.reset-size3.size1{font-size:.714286em}.katex .fontsize-ensurer.reset-size3.size2,.katex .sizing.reset-size3.size2{font-size:.857143em}.katex .fontsize-ensurer.reset-size3.size3,.katex .sizing.reset-size3.size3{font-size:1em}.katex .fontsize-ensurer.reset-size3.size4,.katex .sizing.reset-size3.size4{font-size:1.14286em}.katex .fontsize-ensurer.reset-size3.size5,.katex .sizing.reset-size3.size5{font-size:1.28571em}.katex .fontsize-ensurer.reset-size3.size6,.katex .sizing.reset-size3.size6{font-size:1.42857em}.katex .fontsize-ensurer.reset-size3.size7,.katex .sizing.reset-size3.size7{font-size:1.71429em}.katex .fontsize-ensurer.reset-size3.size8,.katex .sizing.reset-size3.size8{font-size:2.05714em}.katex .fontsize-ensurer.reset-size3.size9,.katex .sizing.reset-size3.size9{font-size:2.46857em}.katex .fontsize-ensurer.reset-size3.size10,.katex .sizing.reset-size3.size10{font-size:2.96286em}.katex .fontsize-ensurer.reset-size3.size11,.katex .sizing.reset-size3.size11{font-size:3.55429em}.katex .fontsize-ensurer.reset-size4.size1,.katex .sizing.reset-size4.size1{font-size:.625em}.katex .fontsize-ensurer.reset-size4.size2,.katex .sizing.reset-size4.size2{font-size:.75em}.katex .fontsize-ensurer.reset-size4.size3,.katex .sizing.reset-size4.size3{font-size:.875em}.katex .fontsize-ensurer.reset-size4.size4,.katex .sizing.reset-size4.size4{font-size:1em}.katex .fontsize-ensurer.reset-size4.size5,.katex .sizing.reset-size4.size5{font-size:1.125em}.katex .fontsize-ensurer.reset-size4.size6,.katex .sizing.reset-size4.size6{font-size:1.25em}.katex .fontsize-ensurer.reset-size4.size7,.katex .sizing.reset-size4.size7{font-size:1.5em}.katex .fontsize-ensurer.reset-size4.size8,.katex .sizing.reset-size4.size8{font-size:1.8em}.katex .fontsize-ensurer.reset-size4.size9,.katex .sizing.reset-size4.size9{font-size:2.16em}.katex .fontsize-ensurer.reset-size4.size10,.katex .sizing.reset-size4.size10{font-size:2.5925em}.katex .fontsize-ensurer.reset-size4.size11,.katex .sizing.reset-size4.size11{font-size:3.11em}.katex .fontsize-ensurer.reset-size5.size1,.katex .sizing.reset-size5.size1{font-size:.555556em}.katex .fontsize-ensurer.reset-size5.size2,.katex .sizing.reset-size5.size2{font-size:.666667em}.katex .fontsize-ensurer.reset-size5.size3,.katex .sizing.reset-size5.size3{font-size:.777778em}.katex .fontsize-ensurer.reset-size5.size4,.katex .sizing.reset-size5.size4{font-size:.888889em}.katex .fontsize-ensurer.reset-size5.size5,.katex .sizing.reset-size5.size5{font-size:1em}.katex .fontsize-ensurer.reset-size5.size6,.katex .sizing.reset-size5.size6{font-size:1.11111em}.katex .fontsize-ensurer.reset-size5.size7,.katex .sizing.reset-size5.size7{font-size:1.33333em}.katex .fontsize-ensurer.reset-size5.size8,.katex .sizing.reset-size5.size8{font-size:1.6em}.katex .fontsize-ensurer.reset-size5.size9,.katex .sizing.reset-size5.size9{font-size:1.92em}.katex .fontsize-ensurer.reset-size5.size10,.katex .sizing.reset-size5.size10{font-size:2.30444em}.katex .fontsize-ensurer.reset-size5.size11,.katex .sizing.reset-size5.size11{font-size:2.76444em}.katex .fontsize-ensurer.reset-size6.size1,.katex .sizing.reset-size6.size1{font-size:.5em}.katex .fontsize-ensurer.reset-size6.size2,.katex .sizing.reset-size6.size2{font-size:.6em}.katex .fontsize-ensurer.reset-size6.size3,.katex .sizing.reset-size6.size3{font-size:.7em}.katex .fontsize-ensurer.reset-size6.size4,.katex .sizing.reset-size6.size4{font-size:.8em}.katex .fontsize-ensurer.reset-size6.size5,.katex .sizing.reset-size6.size5{font-size:.9em}.katex .fontsize-ensurer.reset-size6.size6,.katex .sizing.reset-size6.size6{font-size:1em}.katex .fontsize-ensurer.reset-size6.size7,.katex .sizing.reset-size6.size7{font-size:1.2em}.katex .fontsize-ensurer.reset-size6.size8,.katex .sizing.reset-size6.size8{font-size:1.44em}.katex .fontsize-ensurer.reset-size6.size9,.katex .sizing.reset-size6.size9{font-size:1.728em}.katex .fontsize-ensurer.reset-size6.size10,.katex .sizing.reset-size6.size10{font-size:2.074em}.katex .fontsize-ensurer.reset-size6.size11,.katex .sizing.reset-size6.size11{font-size:2.488em}.katex .fontsize-ensurer.reset-size7.size1,.katex .sizing.reset-size7.size1{font-size:.416667em}.katex .fontsize-ensurer.reset-size7.size2,.katex .sizing.reset-size7.size2{font-size:.5em}.katex .fontsize-ensurer.reset-size7.size3,.katex .sizing.reset-size7.size3{font-size:.583333em}.katex .fontsize-ensurer.reset-size7.size4,.katex .sizing.reset-size7.size4{font-size:.666667em}.katex .fontsize-ensurer.reset-size7.size5,.katex .sizing.reset-size7.size5{font-size:.75em}.katex .fontsize-ensurer.reset-size7.size6,.katex .sizing.reset-size7.size6{font-size:.833333em}.katex .fontsize-ensurer.reset-size7.size7,.katex .sizing.reset-size7.size7{font-size:1em}.katex .fontsize-ensurer.reset-size7.size8,.katex .sizing.reset-size7.size8{font-size:1.2em}.katex .fontsize-ensurer.reset-size7.size9,.katex .sizing.reset-size7.size9{font-size:1.44em}.katex .fontsize-ensurer.reset-size7.size10,.katex .sizing.reset-size7.size10{font-size:1.72833em}.katex .fontsize-ensurer.reset-size7.size11,.katex .sizing.reset-size7.size11{font-size:2.07333em}.katex .fontsize-ensurer.reset-size8.size1,.katex .sizing.reset-size8.size1{font-size:.347222em}.katex .fontsize-ensurer.reset-size8.size2,.katex .sizing.reset-size8.size2{font-size:.416667em}.katex .fontsize-ensurer.reset-size8.size3,.katex .sizing.reset-size8.size3{font-size:.486111em}.katex .fontsize-ensurer.reset-size8.size4,.katex .sizing.reset-size8.size4{font-size:.555556em}.katex .fontsize-ensurer.reset-size8.size5,.katex .sizing.reset-size8.size5{font-size:.625em}.katex .fontsize-ensurer.reset-size8.size6,.katex .sizing.reset-size8.size6{font-size:.694444em}.katex .fontsize-ensurer.reset-size8.size7,.katex .sizing.reset-size8.size7{font-size:.833333em}.katex .fontsize-ensurer.reset-size8.size8,.katex .sizing.reset-size8.size8{font-size:1em}.katex .fontsize-ensurer.reset-size8.size9,.katex .sizing.reset-size8.size9{font-size:1.2em}.katex .fontsize-ensurer.reset-size8.size10,.katex .sizing.reset-size8.size10{font-size:1.44028em}.katex .fontsize-ensurer.reset-size8.size11,.katex .sizing.reset-size8.size11{font-size:1.72778em}.katex .fontsize-ensurer.reset-size9.size1,.katex .sizing.reset-size9.size1{font-size:.289352em}.katex .fontsize-ensurer.reset-size9.size2,.katex .sizing.reset-size9.size2{font-size:.347222em}.katex .fontsize-ensurer.reset-size9.size3,.katex .sizing.reset-size9.size3{font-size:.405093em}.katex .fontsize-ensurer.reset-size9.size4,.katex .sizing.reset-size9.size4{font-size:.462963em}.katex .fontsize-ensurer.reset-size9.size5,.katex .sizing.reset-size9.size5{font-size:.520833em}.katex .fontsize-ensurer.reset-size9.size6,.katex .sizing.reset-size9.size6{font-size:.578704em}.katex .fontsize-ensurer.reset-size9.size7,.katex .sizing.reset-size9.size7{font-size:.694444em}.katex .fontsize-ensurer.reset-size9.size8,.katex .sizing.reset-size9.size8{font-size:.833333em}.katex .fontsize-ensurer.reset-size9.size9,.katex .sizing.reset-size9.size9{font-size:1em}.katex .fontsize-ensurer.reset-size9.size10,.katex .sizing.reset-size9.size10{font-size:1.20023em}.katex .fontsize-ensurer.reset-size9.size11,.katex .sizing.reset-size9.size11{font-size:1.43981em}.katex .fontsize-ensurer.reset-size10.size1,.katex .sizing.reset-size10.size1{font-size:.24108em}.katex .fontsize-ensurer.reset-size10.size2,.katex .sizing.reset-size10.size2{font-size:.289296em}.katex .fontsize-ensurer.reset-size10.size3,.katex .sizing.reset-size10.size3{font-size:.337512em}.katex .fontsize-ensurer.reset-size10.size4,.katex .sizing.reset-size10.size4{font-size:.385728em}.katex .fontsize-ensurer.reset-size10.size5,.katex .sizing.reset-size10.size5{font-size:.433944em}.katex .fontsize-ensurer.reset-size10.size6,.katex .sizing.reset-size10.size6{font-size:.48216em}.katex .fontsize-ensurer.reset-size10.size7,.katex .sizing.reset-size10.size7{font-size:.578592em}.katex .fontsize-ensurer.reset-size10.size8,.katex .sizing.reset-size10.size8{font-size:.694311em}.katex .fontsize-ensurer.reset-size10.size9,.katex .sizing.reset-size10.size9{font-size:.833173em}.katex .fontsize-ensurer.reset-size10.size10,.katex .sizing.reset-size10.size10{font-size:1em}.katex .fontsize-ensurer.reset-size10.size11,.katex .sizing.reset-size10.size11{font-size:1.19961em}.katex .fontsize-ensurer.reset-size11.size1,.katex .sizing.reset-size11.size1{font-size:.200965em}.katex .fontsize-ensurer.reset-size11.size2,.katex .sizing.reset-size11.size2{font-size:.241158em}.katex .fontsize-ensurer.reset-size11.size3,.katex .sizing.reset-size11.size3{font-size:.281351em}.katex .fontsize-ensurer.reset-size11.size4,.katex .sizing.reset-size11.size4{font-size:.321543em}.katex .fontsize-ensurer.reset-size11.size5,.katex .sizing.reset-size11.size5{font-size:.361736em}.katex .fontsize-ensurer.reset-size11.size6,.katex .sizing.reset-size11.size6{font-size:.401929em}.katex .fontsize-ensurer.reset-size11.size7,.katex .sizing.reset-size11.size7{font-size:.482315em}.katex .fontsize-ensurer.reset-size11.size8,.katex .sizing.reset-size11.size8{font-size:.578778em}.katex .fontsize-ensurer.reset-size11.size9,.katex .sizing.reset-size11.size9{font-size:.694534em}.katex .fontsize-ensurer.reset-size11.size10,.katex .sizing.reset-size11.size10{font-size:.833601em}.katex .fontsize-ensurer.reset-size11.size11,.katex .sizing.reset-size11.size11{font-size:1em}.katex .delimsizing.size1{font-family:KaTeX_Size1}.katex .delimsizing.size2{font-family:KaTeX_Size2}.katex .delimsizing.size3{font-family:KaTeX_Size3}.katex .delimsizing.size4{font-family:KaTeX_Size4}.katex .delimsizing.mult .delim-size1>span{font-family:KaTeX_Size1}.katex .delimsizing.mult .delim-size4>span{font-family:KaTeX_Size4}.katex .nulldelimiter{width:.12em;display:inline-block}.katex .delimcenter,.katex .op-symbol{position:relative}.katex .op-symbol.small-op{font-family:KaTeX_Size1}.katex .op-symbol.large-op{font-family:KaTeX_Size2}.katex .accent>.vlist-t,.katex .op-limits>.vlist-t{text-align:center}.katex .accent .accent-body{position:relative}.katex .accent .accent-body:not(.accent-full){width:0}.katex .overlay{display:block}.katex .mtable .vertical-separator{min-width:1px;display:inline-block}.katex .mtable .arraycolsep{display:inline-block}.katex .mtable .col-align-c>.vlist-t{text-align:center}.katex .mtable .col-align-l>.vlist-t{text-align:left}.katex .mtable .col-align-r>.vlist-t{text-align:right}.katex .svg-align{text-align:left}.katex svg{fill:currentColor;stroke:currentColor;height:inherit;width:100%;display:block;position:absolute}.katex svg path{stroke:none}.katex svg{fill-rule:nonzero;fill-opacity:1;stroke-width:1px;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1}.katex img{border-style:none;min-width:0;max-width:none;min-height:0;max-height:none}.katex .stretchy{width:100%;display:block;position:relative;overflow:hidden}.katex .stretchy:after,.katex .stretchy:before{content:""}.katex .hide-tail{width:100%;position:relative;overflow:hidden}.katex .halfarrow-left{width:50.2%;position:absolute;left:0;overflow:hidden}.katex .halfarrow-right{width:50.2%;position:absolute;right:0;overflow:hidden}.katex .brace-left{width:25.1%;position:absolute;left:0;overflow:hidden}.katex .brace-center{width:50%;position:absolute;left:25%;overflow:hidden}.katex .brace-right{width:25.1%;position:absolute;right:0;overflow:hidden}.katex .x-arrow-pad{padding:0 .5em}.katex .cd-arrow-pad{padding:0 .55556em 0 .27778em}.katex .mover,.katex .munder,.katex .x-arrow{text-align:center}.katex .boxpad{padding:0 .3em}.katex .fbox,.katex .fcolorbox{box-sizing:border-box;border:.04em solid}.katex .cancel-pad{padding:0 .2em}.katex .cancel-lap{margin-left:-.2em;margin-right:-.2em}.katex .sout{border-bottom-style:solid;border-bottom-width:.08em}.katex .angl{box-sizing:border-box;border-top:.049em solid;border-right:.049em solid;margin-right:.03889em}.katex .anglpad{padding:0 .03889em}.katex .eqn-num:before{content:"(" counter(katexEqnNo) ")";counter-increment:katexEqnNo}.katex .mml-eqn-num:before{content:"(" counter(mmlEqnNo) ")";counter-increment:mmlEqnNo}.katex .mtr-glue{width:50%}.katex .cd-vert-arrow{display:inline-block;position:relative}.katex .cd-label-left{text-align:left;display:inline-block;position:absolute;right:calc(50% + .3em)}.katex .cd-label-right{text-align:right;display:inline-block;position:absolute;left:calc(50% + .3em)}.katex-display{text-align:center;margin:1em 0;display:block}.katex-display>.katex{text-align:center;white-space:nowrap;display:block}.katex-display>.katex>.katex-html{display:block;position:relative}.katex-display>.katex>.katex-html>.tag{position:absolute;right:0}.katex-display.leqno>.katex>.katex-html>.tag{left:0;right:auto}.katex-display.fleqn>.katex{text-align:left;padding-left:2em}body{counter-reset:katexEqnNo mmlEqnNo}.cabinet{max-width:720px}.cab-h{font-family:var(--disp);letter-spacing:-.01em;color:#1c2030;margin:0 0 14px;font-size:22px;font-weight:700}.cab-h2{margin-top:34px}.cab-list{flex-direction:column;gap:10px;display:flex}.cab-row{border:1px solid var(--line);background:var(--card);border-radius:14px;justify-content:space-between;align-items:center;gap:12px;padding:16px 18px;transition:border-color .15s,box-shadow .15s;display:flex}.cab-row:hover{border-color:#c9d2f0;box-shadow:0 2px 12px #3a5bff0f}.cab-main{flex-direction:column;gap:4px;min-width:0;display:flex}.cab-title{color:#1c2030;font-size:16px;font-weight:600}.due{color:var(--muted);font-size:13px}.due.overdue{color:#c0392b}.cab-row .ghost{border:1px solid var(--line);color:var(--accent);cursor:pointer;white-space:nowrap;background:#f5f7ff;border-radius:10px;padding:9px 18px;font-size:14px;font-weight:600;transition:background .15s,border-color .15s}.cab-row .ghost:hover{border-color:var(--accent);background:#e9eeff}.cab-row .primary{white-space:nowrap}.join-card{background:var(--card);border:1px solid var(--line);text-align:center;border-radius:18px;max-width:360px;padding:30px 28px}.join-ok{font-family:var(--disp);color:#1d8a4e;margin-bottom:8px;font-size:20px;font-weight:700}.join-bad{font-family:var(--disp);color:#c0392b;margin-bottom:8px;font-size:18px;font-weight:700}.join-card .auth-submit{margin-top:18px}.auth-notice{color:#3a3f57;background:#eef0f7;border-radius:10px;margin-bottom:16px;padding:10px 12px;font-size:13px}.cab-meta{flex-wrap:wrap;align-items:center;gap:8px;display:flex}.st-badge{border-radius:999px;padding:2px 9px;font-size:12px;font-weight:700}.st-badge.todo{color:#c0392b;background:#fdecec}.st-badge.done{color:#1d8a4e;background:#e7f6ee}.cab-score{color:var(--muted);font-size:13px;font-weight:600}.cab-actions{white-space:nowrap;align-items:center;gap:8px;display:flex}.cab-retake{color:var(--muted);cursor:pointer;background:0 0;border:none;padding:4px;font-size:13px}.cab-retake:hover{color:var(--accent)}.cab-row.is-todo{border-left:3px solid #d9534f}.cab-row.is-done{border-left:3px solid #1d8a4e}@media (width<=720px){.cabinet,.results{max-width:100%}.cab-row{flex-direction:column;align-items:stretch;gap:10px}.cab-actions{justify-content:space-between;width:100%}.cab-row .ghost,.cab-row .primary{text-align:center;width:100%}.cab-h{font-size:20px}.join-card{max-width:100%}}.tests-head{justify-content:space-between;align-items:center;margin-bottom:18px;display:flex}.tests-head h2{font-family:var(--disp);margin:0}.primary{background:var(--accent);color:#fff;cursor:pointer;border:none;border-radius:10px;padding:10px 16px;font-weight:600}.primary:disabled{opacity:.6;cursor:default}.ghost{border:1px dashed var(--line);color:var(--muted);cursor:pointer;background:0 0;border-radius:10px;padding:10px 14px}.ghost:hover{color:var(--accent);border-color:#c7cef0}.test-list{flex-direction:column;gap:10px;display:flex}.test-row{text-align:left;border:1px solid var(--line);background:var(--card);cursor:pointer;border-radius:14px;justify-content:space-between;align-items:center;padding:16px 18px;transition:all .15s;display:flex}.test-row:hover{border-color:var(--accent);box-shadow:0 6px 18px #3a5bff1a}.test-title{font-size:16px;font-weight:600}.test-date{color:var(--muted);font-size:13px}.builder-top{justify-content:space-between;align-items:center;margin-bottom:14px;display:flex}.title-input{font-family:var(--disp);border:1px solid var(--line);background:var(--card);border-radius:14px;margin-bottom:18px;padding:14px 16px;font-size:20px;font-weight:600}.save-msg{border-radius:10px;margin-bottom:14px;padding:10px 14px;font-size:14px}.save-msg.ok{color:#1d8a4e;background:#e8fbf0}.save-msg.err{color:#c0392b;background:#fdecea}.q-card{background:var(--card);border:1px solid var(--line);border-radius:16px;margin-bottom:14px;padding:18px}.q-head{align-items:center;gap:10px;margin-bottom:8px;display:flex}.q-num{background:var(--accent);color:#fff;width:28px;height:28px;font-family:var(--disp);border-radius:8px;justify-content:center;align-items:center;font-size:13px;font-weight:700;display:flex}.q-spacer{flex:1}.q-head select{border:1px solid var(--line);background:#fbfcff;border-radius:9px;padding:8px 10px}.x{border:1px solid var(--line);cursor:pointer;width:30px;height:30px;color:var(--muted);background:#fff;border-radius:8px}.x:hover{color:#c0392b;border-color:#e0b4b4}.q-card textarea{border:1px solid var(--line);width:100%;min-height:64px;font-family:var(--body);resize:vertical;background:#fbfcff;border-radius:10px;padding:11px 13px;font-size:15px}.opt-row{align-items:center;gap:10px;margin-bottom:8px;display:flex}.opt-row input[type=text],.opt-row>input{flex:1}.mark{color:var(--ink);white-space:nowrap;align-items:center;gap:6px;font-size:14px;display:inline-flex}.mark input{width:auto}.add-q{width:100%;margin-top:4px}.q-preview{background:#f5f6fb;border-radius:10px;margin-top:8px;padding:10px 12px;font-size:15px;line-height:1.5}.prev-label{color:var(--muted);text-transform:uppercase;letter-spacing:.05em;margin-bottom:4px;font-size:10px;display:block}.q-images{flex-wrap:wrap;align-items:center;gap:10px;margin-top:10px;display:flex}.q-img{position:relative}.q-img img{border:1px solid var(--line);border-radius:10px;max-width:220px;max-height:120px;display:block}.img-x{color:#fff;cursor:pointer;background:#c0392b;border:none;border-radius:50%;width:24px;height:24px;font-size:12px;line-height:1;position:absolute;top:-8px;right:-8px}.q-card.active{border-color:var(--accent);box-shadow:0 0 0 3px #3a5bff1f}.small{font-size:12px}.hint-box{color:#3a3f57;background:#eef0f7;border-radius:10px;margin-top:8px;padding:10px 12px;font-size:13px;line-height:1.5}.arrow{color:var(--muted);flex:none}.num-field{max-width:140px}.ord-n{font-family:var(--disp);color:var(--muted);text-align:center;min-width:18px;font-size:12px;font-weight:700}.bt-right{gap:10px;display:flex}.sp-view{max-width:820px;margin:0 auto}.sp-banner{color:#9a6b00;background:#fff7e6;border-radius:10px;margin-bottom:16px;padding:10px 14px;font-size:13px}.sp-title{font-family:var(--disp);margin:0 0 16px}.sp-qtext{margin-bottom:14px;font-size:19px;line-height:1.5}.sp-img{border:1px solid var(--line);border-radius:10px;max-width:100%;max-height:200px;margin-bottom:12px;display:block}.sp-input{max-width:320px;padding:12px 14px;font-size:17px}.sp-open{border:1px solid var(--line);width:100%;min-height:110px;font-family:var(--body);background:#fbfcff;border-radius:10px;padding:12px 14px;font-size:17px}.sp-choice{border:1px solid var(--line);cursor:pointer;border-radius:10px;align-items:center;gap:10px;margin-bottom:8px;padding:12px 14px;font-size:17px;display:flex}.sp-choice input{width:auto}.sp-match{align-items:center;gap:12px;margin-bottom:8px;display:flex}.sp-match-left{flex:1;font-size:17px}.sp-match select{max-width:240px;font-size:16px}.sp-mn{align-items:center;gap:12px;margin-bottom:8px;display:flex}.sp-mn-label{min-width:130px;font-size:17px}.sp-ord-item{border:1px solid var(--line);cursor:grab;-webkit-user-select:none;user-select:none;background:#fbfcff;border-radius:10px;align-items:center;gap:10px;margin-bottom:8px;padding:13px 14px;font-size:17px;display:flex}.sp-ord-item:active{cursor:grabbing}.ord-grip{color:#c0c6da;letter-spacing:-2px;font-size:16px}.cloze-text{font-size:18px;line-height:2.2}.cloze-text input.cloze-input{border:1px solid var(--accent);background:#fff;border-radius:7px;width:104px;margin:0 4px;padding:3px 9px;font-size:15px;display:inline-block}.sp-verdict{margin-top:12px;font-size:14px;font-weight:600}.sp-verdict.ok{color:#1d8a4e}.sp-verdict.bad{color:#c0392b}.sp-verdict.pend{color:#9a6b00}.sp-want{color:var(--muted);font-weight:400}.sp-total{background:var(--card);border:1px solid var(--line);font-family:var(--disp);text-align:center;border-radius:14px;margin-top:18px;padding:16px;font-size:18px;font-weight:700}.auto-status{color:var(--muted);align-self:center;font-size:13px}.auto-status.ok{color:#1d8a4e}.auto-status.err{color:#c0392b}.tabs{gap:8px;margin-bottom:20px;display:flex}.tab{border:1px solid var(--line);background:var(--card);cursor:pointer;color:var(--muted);border-radius:10px;padding:9px 18px;font-size:15px}.tab.active{border-color:var(--accent);color:var(--accent);font-weight:600}.create-group{gap:10px;margin-bottom:18px;display:flex}.create-group input{flex:1}.grade-input{max-width:90px;flex:none!important}.group-row{align-items:center;gap:8px;display:flex}.group-open{text-align:left;border:1px solid var(--line);background:var(--card);cursor:pointer;border-radius:14px;flex:1;justify-content:space-between;align-items:center;padding:16px 18px;display:flex}.group-open:hover{border-color:var(--accent);box-shadow:0 6px 18px #3a5bff1a}.invite-box{background:var(--card);border:1px solid var(--line);border-radius:14px;margin-bottom:22px;padding:16px 18px}.invite-row{gap:10px;margin:8px 0;display:flex}.invite-row input{color:var(--muted);flex:1;font-size:14px}.roster-h{font-family:var(--disp);margin:0 0 12px}.block-card{background:var(--card);border:1px solid var(--line);border-radius:16px;margin-bottom:14px;padding:16px 18px}.block-h{font-family:var(--disp);margin-bottom:10px;font-size:15px;font-weight:600}.block-h .opt{font-family:var(--body);color:var(--muted);margin-left:6px;font-size:12px;font-weight:400}.block-card input,.block-card textarea{border:1px solid var(--line);width:100%;font-family:var(--body);background:#fbfcff;border-radius:10px;margin-bottom:8px;padding:11px 13px;font-size:15px}.block-card textarea{resize:vertical;min-height:60px}.assign-card{border-color:#d8def5;margin-top:18px}.assign-groups{flex-wrap:wrap;gap:14px;margin-bottom:12px;display:flex}.assign-groups .mark{font-size:15px}.due-input{max-width:260px!important}.assign-actions{align-items:center;gap:12px;margin-top:6px;display:flex}.assign-list{border-top:1px solid var(--line);margin-top:16px;padding-top:12px}.assign-row{justify-content:space-between;align-items:center;padding:8px 0;font-size:14px;display:flex}.ex-labels{flex-wrap:wrap;align-items:center;gap:8px;margin-bottom:12px;display:flex}.ex-label{align-items:center;gap:4px;display:flex}.ex-label input{max-width:90px}.ex-row{flex-wrap:wrap;align-items:center;gap:8px;margin-bottom:8px;display:flex}.ex-n{font-family:var(--disp);color:var(--muted);text-align:center;min-width:18px;font-size:12px;font-weight:700}.ex-prompt{flex:1;min-width:160px}.ex-eq{color:var(--muted);font-weight:600}.ex-box{align-items:center;gap:4px;display:inline-flex}.ex-box input{text-align:center;width:64px}.ex-unit{color:var(--muted);font-size:13px}.ex-list{flex-direction:column;gap:10px;display:flex}.ex-take{flex-wrap:wrap;align-items:center;gap:10px;font-size:17px;display:flex}.ex-take-n{font-family:var(--disp);color:var(--muted);text-align:center;min-width:20px;font-size:13px;font-weight:700}.ex-take-prompt{font-size:17px}.ex-take .ex-box input{text-align:center;width:60px;padding:8px;font-size:17px}.sp-foot{border-top:1px solid var(--line);color:var(--muted);text-align:center;margin-top:32px;padding-top:16px;font-size:12px;line-height:1.6}.q-add-row{flex-wrap:wrap;align-items:center;gap:10px;margin-top:8px;display:flex}.ocr-btn{border-color:var(--accent);color:var(--accent)}.ocr-msg{color:#3a3f57;background:#eef0f7;border-radius:10px;margin-top:10px;padding:10px 12px;font-size:14px}.ai-row{gap:8px;margin-top:14px;display:flex}.ai-btn{border:1px solid var(--accent);color:var(--accent);cursor:pointer;background:#f0f3ff;border-radius:10px;padding:8px 14px;font-size:14px}.ai-btn:disabled{opacity:.6;cursor:default}.ai-msg{color:#3a3f57;margin-top:8px;font-size:13px}.sol-input{min-height:64px}.sp-solution{border:1px solid var(--line);background:#f6f7fb;border-radius:12px;margin-top:8px;padding:12px 14px}.sp-sol-label{color:var(--accent);margin-bottom:4px;font-size:12px;font-weight:700;display:inline-block}.sp-sol-body{white-space:pre-line;color:#2a2f3e;font-size:16px;line-height:1.8}.q-drag{cursor:grab;color:var(--muted);-webkit-user-select:none;user-select:none;touch-action:none;margin-left:-4px;padding:2px 6px;font-size:18px;line-height:1}.q-drag:active{cursor:grabbing}.q-ghost{opacity:.4}.sp-theory{border:1px solid var(--line);background:#f5f6fb;border-radius:14px;margin-bottom:18px;padding:14px 16px}.sp-theory-title{font-family:var(--disp);margin-bottom:6px;font-size:15px;font-weight:700}.sp-theory-body{font-size:15px;line-height:1.5}.sp-video{aspect-ratio:16/9;background:#000;border-radius:14px;width:100%;margin-bottom:18px;position:relative;overflow:hidden}.sp-video iframe,.sp-video .sp-video-frame,.sp-video .sp-video-frame iframe{border:0;width:100%;height:100%;position:absolute;inset:0}.test-row{box-shadow:none;cursor:default;background:0 0;border:0;align-items:stretch;gap:8px;padding:0}.test-row:hover{box-shadow:none;border-color:#0000}.test-row-main{text-align:left;border:1px solid var(--line);background:var(--card);cursor:pointer;border-radius:14px;flex:1;justify-content:space-between;align-items:center;gap:12px;padding:16px 18px;transition:all .15s;display:flex}.test-row-main:hover{border-color:var(--accent);box-shadow:0 6px 18px #3a5bff1a}.test-del{border:1px solid var(--line);background:var(--card);width:46px;color:var(--muted);cursor:pointer;border-radius:14px;flex:none;font-size:15px;transition:all .15s}.test-del:hover{color:#c0392b;background:#fff5f4;border-color:#f0c0bb}.sp-theory{background:#f0f3ff;border:1px solid #dce2fb;border-radius:14px;margin-bottom:18px;padding:16px 18px}.sp-theory-title{font-family:var(--disp);color:var(--accent);margin-bottom:6px;font-size:14px;font-weight:700}.sp-theory-body{white-space:pre-line;color:#2a2f3e;font-size:16px;line-height:1.8}.sp-hint{margin-bottom:10px}.sp-hint-btn{border:1px dashed var(--accent);color:var(--accent);cursor:pointer;background:#f5f7ff;border-radius:10px;padding:7px 12px;font-size:14px}.sp-hint-body{background:#fffaf0;border:1px solid #f0e2c0;border-radius:10px;padding:10px 12px;font-size:14px;line-height:1.5}.sp-hint-label{font-weight:700}.q-src{color:var(--muted);margin:-2px 0 8px;font-size:12px}.srch-overlay{z-index:50;background:#14182873;justify-content:center;align-items:flex-start;padding:40px 16px;display:flex;position:fixed;inset:0;overflow-y:auto}.srch-modal{background:var(--card);border-radius:18px;width:100%;max-width:640px;padding:20px 22px;box-shadow:0 20px 60px #00000040}.srch-head{justify-content:space-between;align-items:center;margin-bottom:14px;display:flex}.srch-head h3{font-family:var(--disp);margin:0}.srch-controls{gap:8px;margin-bottom:10px;display:flex}.srch-input{flex:1}.srch-grade{text-align:center;width:80px}.srch-actions{flex-wrap:wrap;gap:8px;margin-bottom:12px;display:flex}.srch-busy,.srch-msg{padding:8px 0;font-size:14px}.srch-msg{color:#3a3f57}.srch-results{flex-direction:column;gap:10px;max-height:55vh;display:flex;overflow-y:auto}.srch-card{border:1px solid var(--line);border-radius:12px;justify-content:space-between;align-items:flex-start;gap:12px;padding:12px 14px;display:flex}.srch-card-main{flex:1;min-width:0}.srch-type{color:var(--accent);background:#eef0f7;border-radius:999px;margin-bottom:6px;padding:2px 8px;font-size:11px;font-weight:700;display:inline-block}.srch-text{font-size:15px;line-height:1.45}.srch-src{color:var(--muted);margin-top:6px;font-size:12px}.srch-add{border:1px solid var(--accent);color:var(--accent);cursor:pointer;background:#f0f3ff;border-radius:10px;flex:none;padding:8px 12px;font-size:14px}.srch-add:disabled{opacity:.6;cursor:default;border-color:var(--line);color:var(--muted);background:var(--card)}.admin-bank{max-width:760px}.ab-title{font-family:var(--disp);margin:0 0 6px}.ab-sub{margin:0 0 16px}.ab-controls{gap:8px;margin-bottom:10px;display:flex}.ab-controls .srch-input{flex:1}.ab-actions{gap:8px;margin-bottom:14px;display:flex}.ab-block{margin-bottom:22px}.ab-bank-title{font-family:var(--disp);margin:18px 0 10px}.ab-tag{color:var(--muted);margin-left:8px;font-size:11px;display:inline-block}.ab-del{color:#c0392b!important;background:#fdf3f3!important;border-color:#e3b3b3!important}.ab-upload{border:1px dashed var(--line);border-radius:12px;flex-wrap:wrap;align-items:center;gap:10px;margin:-4px 0 16px;padding:12px 14px;display:flex}.ab-or{color:var(--muted);font-size:14px}.ab-hint{font-size:12px}.ab-topic-row{align-items:center;gap:8px;margin-top:8px;display:flex}.ab-topic-lbl{color:var(--muted);font-size:13px}.ab-topic-input{border:1px solid var(--line);border-radius:8px;flex:1;padding:6px 10px;font-size:14px}.vis-tag{font-weight:600}.vis-tag.on{color:#1f9d55}.vis-tag.off{color:#b0823a}.assign-row-btns{align-items:center;gap:6px;display:inline-flex}.ghost.mini{border:1px solid var(--line);background:var(--card);cursor:pointer;border-radius:8px;padding:4px 10px;font-size:13px}.mathfield{flex-direction:column;gap:6px;display:flex}.mathpad{flex-wrap:wrap;gap:6px;display:flex}.mathkey{border:1px solid var(--line);background:var(--card);color:#1c2030;cursor:pointer;border-radius:8px;min-width:34px;height:32px;padding:0 8px;font-size:16px;line-height:1}.mathkey:hover{border-color:var(--accent);color:var(--accent)}.mathkey:active{background:#eef0f7}.test-res{cursor:pointer;background:0 0;border:none;padding:0 8px;font-size:16px}.results{max-width:760px}.res-list{flex-direction:column;gap:10px;margin-top:14px;display:flex}.res-item{border:1px solid var(--line);border-radius:12px;overflow:hidden}.res-row{background:var(--card);cursor:pointer;text-align:left;border:none;justify-content:space-between;align-items:center;gap:12px;width:100%;padding:12px 14px;display:flex}.res-row:hover{background:#f5f7ff}.res-name{flex:1;font-weight:600}.res-score{color:var(--accent);white-space:nowrap;font-weight:700}.res-date{color:var(--muted);white-space:nowrap;font-size:13px}.res-detail{border-top:1px solid var(--line);background:#fafbff;flex-direction:column;gap:6px;padding:6px 14px 12px;display:flex}.res-q{border-bottom:1px dashed var(--line);padding:8px 0}.res-q:last-child{border-bottom:none}.res-q-head{align-items:flex-start;gap:8px;display:flex}.res-mark{font-weight:700}.res-mark.ok{color:#1f9d55}.res-mark.bad{color:#c0392b}.res-mark.pend{color:#b0823a}.res-q-num{color:var(--muted)}.res-q-text{flex:1}.res-ans{flex-direction:column;gap:2px;margin:6px 0 0 26px;font-size:14px;display:flex}.res-given{color:#3a3f57}.res-want{color:#1f9d55}.avg-badge{border-radius:999px;padding:2px 8px;font-size:12px;font-weight:700}.avg-badge.ok{color:#1f9d55;background:#e8f7ee}.avg-badge.low{color:#b0823a;background:#fdf3e3}.gtable-wrap{border:1px solid var(--line);border-radius:12px;margin-bottom:16px;overflow-x:auto}.gtable{border-collapse:collapse;width:100%;font-size:14px}.gtable th,.gtable td{text-align:center;white-space:nowrap;border-bottom:1px solid var(--line);padding:8px 12px}.gtable th{color:#3a3f57;background:#f5f7ff;font-weight:700}.gtable th:first-child,.gtable td:first-child{text-align:left}.gt-name{font-weight:600}.gt-empty{color:var(--muted)}.gt-avg{color:var(--accent);font-weight:700}.gtable tbody tr:last-child td{border-bottom:none}.report{max-width:640px}.rep-card{background:var(--card);border:1px solid var(--line);border-radius:16px;margin-top:12px;padding:24px}.rep-head{border-bottom:2px solid var(--accent);margin-bottom:16px;padding-bottom:12px}.rep-name{font-size:24px;font-weight:800;font-family:var(--disp);color:#1c2030}.rep-sub{color:var(--muted);font-size:14px}.rep-summary{gap:16px;margin-bottom:18px;display:flex}.rep-stat{text-align:center;background:#f5f7ff;border-radius:12px;flex:1;padding:14px}.rep-stat-n{color:var(--accent);font-size:28px;font-weight:800;display:block}.rep-stat-l{color:var(--muted);font-size:13px}.rep-list{flex-direction:column;gap:12px;display:flex}.rep-row{flex-direction:column;gap:6px;display:flex}.rep-row-main{justify-content:space-between;align-items:baseline;display:flex}.rep-test{font-weight:600}.rep-date{color:var(--muted);font-size:12px}.rep-bar{background:#eef0f7;border-radius:999px;height:10px;overflow:hidden}.rep-bar-fill{border-radius:999px;height:100%}.rep-bar-fill.great{background:#1f9d55}.rep-bar-fill.good{background:#4a6bff}.rep-bar-fill.mid{background:#e0a93a}.rep-bar-fill.low{background:#d9534f}.rep-pct{color:#3a3f57;font-size:13px}.rep-print{margin-top:18px}@media print{.no-print{display:none}.rep-card{border:none}}.gt-actions{white-space:nowrap}.gt-actions .mini{margin-left:4px;padding:4px 8px}.res-grade{align-items:center;gap:8px;margin-top:4px;display:flex}.res-grade-q{color:var(--muted);font-size:13px}.res-grade .mini{border:1px solid var(--line);background:var(--card);cursor:pointer;border-radius:8px;padding:4px 10px;font-size:13px;font-weight:600}.grade-ok{color:#1f9d55}.grade-ok:hover{background:#e8f7ee;border-color:#1f9d55}.grade-bad{color:#c0392b}.grade-bad:hover{background:#fbeceb;border-color:#c0392b}.res-cmt{align-items:flex-start;gap:8px;margin-top:6px;display:flex}.res-cmt-input{resize:vertical;border:1px solid var(--line);min-height:38px;font:inherit;border-radius:8px;flex:1;padding:6px 10px;font-size:14px}.res-comment{border-left:3px solid var(--accent);color:#2a3354;background:#eef3ff;border-radius:6px;margin-top:6px;padding:6px 10px;font-size:14px}.res-pending-note{color:#b0823a;font-size:13px}.sr-score{color:var(--accent);margin:4px 0 14px;font-size:20px;font-weight:800}.sp-credit{text-align:center;color:#9aa0ad;margin-top:26px;font-size:12px}.sp-credit a{color:#6b7280;border-bottom:1px dotted #c2c7d0;text-decoration:none}.sp-credit a:hover{color:#3a5bff;border-bottom-color:#3a5bff}.sp-submit-wrap{text-align:center;margin-top:30px}.sp-submit-btn{border-radius:12px;padding:13px 34px;font-size:16px}@media (width<=720px){.builder-top{flex-direction:column;align-items:stretch;gap:10px;padding:0}.builder-top>.ghost{align-self:flex-start}.bt-right{grid-template-columns:1fr 1fr;gap:8px;width:100%;display:grid}.bt-right .auto-status,.bt-right .primary{grid-column:1/-1}.bt-right button{justify-content:center;width:100%;padding:10px 8px;font-size:13px;line-height:1.2}.tabs{-webkit-overflow-scrolling:touch;flex-wrap:nowrap;padding-bottom:4px;overflow-x:auto}.tab{white-space:nowrap;flex:none}.title-input{padding:12px 14px;font-size:18px}.q-card{padding:14px}.q-card .row,.ai-row{flex-wrap:wrap}.ai-row .ai-btn{text-align:center;flex:auto}.opt-row{flex-wrap:wrap}.ex-row{gap:6px}.ex-prompt{flex:100%;min-width:0}.ex-box input,.ex-take .ex-box input{width:56px}.num-field{max-width:100%}.sp-match,.sp-mn{flex-direction:column;align-items:stretch;gap:6px}.sp-match select,.sp-mn select{width:100%}.sp-input{max-width:100%}.sp-theory,.sp-solution,.sp-hint-body{padding:12px 14px}.sp-theory-body,.sp-sol-body{font-size:15px}.ex-take,.ex-take-prompt{font-size:16px}.cloze-text{font-size:16px;line-height:2}.q-card .row,.sp-actions{flex-wrap:wrap}}@media (width<=440px){.bt-right{grid-template-columns:1fr}.q-card{padding:12px}.title-input{font-size:17px}.block-h{font-size:15px}}.katex-display{max-width:100%;overflow:auto hidden}.q-card img,.sp-view img,.q-images img{max-width:100%;height:auto}@media (width<=720px){.assign-groups{flex-direction:column;align-items:flex-start;gap:10px}}.assign-groups .mark{white-space:normal;justify-content:flex-start;align-items:center;gap:8px;display:flex}.builder{padding:0 16px}.content .builder{padding:0}.sp-title{font-size:22px;font-weight:700;line-height:1.2}.sp-view .q-card{box-shadow:0 2px 10px #1c20300a}.sp-credit{color:#b4b9c4;margin-top:44px;font-size:11px}.sp-credit a{color:#9aa0ad;border-bottom-color:#d2d6df}@media (width<=720px){.builder{padding:0 14px}.content .builder{padding:0}.sp-title{margin-bottom:14px;font-size:20px}.sp-view .q-card{border-radius:18px;margin-bottom:16px}.sp-credit{margin-top:36px}}.q-num{flex:0 0 28px}.q-drag{flex:none}@media (width<=720px){.bt-right{grid-template-columns:1fr 1fr;gap:6px}.bt-right button.ghost{border-style:solid;border-color:var(--line);color:#3a3f57;background:#f7f9ff;border-radius:10px;padding:9px 6px;font-size:12px;line-height:1.15}.bt-right .primary{padding:12px;font-size:14px}.bt-right .auto-status,.bt-right .primary{grid-column:1/-1}}.bal-chip{cursor:pointer;font-family:var(--disp);color:var(--ink);background:#fff;border:1.5px solid #d8def4;border-radius:999px;align-items:center;gap:7px;padding:7px 12px;font-size:13px;font-weight:600;transition:border-color .15s,box-shadow .15s;display:inline-flex}.bal-chip:hover{border-color:var(--accent);box-shadow:0 2px 10px #3a5bff1f}.bal-coin{background:var(--accent);color:#fff;border-radius:50%;justify-content:center;align-items:center;width:18px;height:18px;font-size:11px;font-weight:700;display:inline-flex}.bal-val{white-space:nowrap}.topup-back{z-index:1000;-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px);background:#141a3273;justify-content:center;align-items:center;padding:16px;display:flex;position:fixed;inset:0}.topup{background:#fff;border-radius:20px;width:100%;max-width:430px;max-height:92vh;padding:26px 24px 22px;animation:.18s ease-out topup-in;position:relative;overflow-y:auto;box-shadow:0 18px 50px #141a3247}@keyframes topup-in{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}.topup-x{cursor:pointer;color:#7a8099;background:#f0f2fa;border:none;border-radius:50%;justify-content:center;align-items:center;width:30px;height:30px;padding:0;font-size:20px;line-height:1;display:flex;position:absolute;top:12px;right:14px}.topup-x:hover{color:var(--ink);background:#e6e9f6}.topup-h{font-family:var(--disp);color:var(--ink);margin:2px 0 8px;font-size:20px;font-weight:700}.topup-sub{color:#5a6076;margin:0 0 18px;font-size:14px;line-height:1.5}.topup-sub b{color:var(--ink)}.tiers{grid-template-columns:1fr 1fr;gap:10px;display:grid}.tier{cursor:pointer;text-align:left;background:#fafbff;border:1.5px solid #dde2f3;border-radius:14px;flex-direction:column;align-items:flex-start;gap:3px;padding:14px 14px 13px;transition:border-color .15s,box-shadow .15s,transform .1s;display:flex;position:relative}.tier:hover{border-color:var(--accent);box-shadow:0 4px 14px #3a5bff1f}.tier:active{transform:translateY(1px)}.tier.best{border-color:var(--accent);background:#f0f3ff}.tier-amount{font-family:var(--disp);color:var(--ink);font-size:19px;font-weight:700}.tier-note{color:#6a7090;font-size:12px}.tier-badge{background:var(--accent);color:#fff;letter-spacing:.3px;border-radius:999px;padding:2px 8px;font-size:10px;font-weight:700;position:absolute;top:-9px;right:10px}.tier-custom{gap:8px;margin-top:12px;display:flex}.tier-input{min-width:0;color:var(--ink);background:#fafbff;border:1.5px solid #dde2f3;border-radius:11px;flex:1;padding:11px 13px;font-size:14px}.tier-input:focus{border-color:var(--accent);outline:none}.tier-pay{cursor:pointer;background:var(--accent);color:#fff;white-space:nowrap;border:none;border-radius:11px;padding:11px 18px;font-size:14px;font-weight:600}.tier-pay:disabled{cursor:not-allowed;background:#c3cae6}.topup-msg{color:#8a5a00;background:#fff7e8;border:1px solid #ffe0a8;border-radius:10px;margin-top:14px;padding:10px 12px;font-size:13px;line-height:1.45}.topup-hist{border-top:1px solid #eef0f7;margin-top:20px;padding-top:14px}.hist-h{text-transform:uppercase;letter-spacing:.5px;color:#9097ad;margin-bottom:8px;font-size:12px;font-weight:600}.hist-empty{color:#9097ad;font-size:13px}.hist-list{flex-direction:column;gap:6px;max-height:180px;margin:0;padding:0;list-style:none;display:flex;overflow-y:auto}.hist-row{justify-content:space-between;align-items:center;font-size:13.5px;display:flex}.hist-feat{color:#4a5068}.hist-amt{font-variant-numeric:tabular-nums;font-weight:600}.hist-amt.plus{color:#1f9d57}.hist-amt.minus{color:#8a90a6}@media (width<=440px){.tiers{grid-template-columns:1fr}.topup{border-radius:16px;padding:22px 18px 18px}.bal-chip{padding:6px 10px;font-size:12px}}.topup-terms{color:#9097ad;border-bottom:1px dotted #c2c8de;margin-top:12px;font-size:11.5px;text-decoration:none;display:inline-block}.topup-terms:hover{color:var(--accent);border-bottom-color:var(--accent)}.pricing-page{background:var(--bg);justify-content:center;min-height:100vh;padding:28px 16px 60px;display:flex}.pricing-card{background:#fff;border-radius:20px;width:100%;max-width:680px;padding:28px 30px 26px;box-shadow:0 10px 40px #141a321a}.pricing-top{justify-content:space-between;align-items:center;margin-bottom:18px;display:flex}.pricing-back{color:var(--accent);font-size:14px;font-weight:500;text-decoration:none}.pricing-back:hover{text-decoration:underline}.pricing-h1{font-family:var(--disp);color:var(--ink);margin:0 0 12px;font-size:26px;font-weight:700}.pricing-h2{font-family:var(--disp);color:var(--ink);margin:26px 0 10px;font-size:17px;font-weight:600}.pricing-lead{color:#4a5068;margin:0 0 18px;font-size:15px;line-height:1.6}.pricing-p{color:#4a5068;margin:0 0 10px;font-size:14.5px;line-height:1.6}.pricing-p a,.pricing-list a{color:var(--accent)}.pricing-note{color:#2c3350;border-radius:12px;padding:13px 15px;font-size:14px;line-height:1.55}.pricing-note-free{background:#eef7f0;border:1px solid #c9e9d3}.pricing-table{border-collapse:collapse;width:100%;margin-top:6px}.pricing-table th{text-align:left;text-transform:uppercase;letter-spacing:.4px;color:#9097ad;border-bottom:2px solid #eef0f7;padding:8px 10px;font-size:12px;font-weight:600}.pricing-table th:last-child,.pricing-table td:last-child{text-align:right}.pricing-table th:nth-child(2),.pricing-table td:nth-child(2){text-align:center;white-space:nowrap}.pricing-table td{vertical-align:top;border-bottom:1px solid #f0f2f8;padding:12px 10px}.pt-title{color:var(--ink);font-size:14.5px;font-weight:600;display:block}.pt-desc{color:#8088a0;margin-top:2px;font-size:12.5px;line-height:1.4;display:block}.pt-free{color:#5a6076;font-size:13.5px}.pt-price{font-family:var(--disp);color:var(--ink);white-space:nowrap;font-weight:700}.pricing-list{margin:6px 0 0;padding-left:20px}.pricing-list li{color:#4a5068;margin-bottom:4px;font-size:14.5px;line-height:1.65}.pricing-foot{color:#9097ad;border-top:1px solid #eef0f7;margin-top:28px;padding-top:16px;font-size:12px}@media (width<=520px){.pricing-card{border-radius:16px;padding:22px 18px}.pricing-h1{font-size:22px}.pt-desc{display:none}}.plan-chip{cursor:pointer;color:var(--ink);font-family:var(--disp);background:#fff;border:1.5px solid #d8def4;border-radius:999px;align-items:center;gap:6px;padding:7px 12px;font-size:13px;font-weight:600;transition:border-color .15s,box-shadow .15s;display:inline-flex}.plan-chip:hover{border-color:var(--accent);box-shadow:0 2px 10px #3a5bff1f}.plan-chip.on{background:#eef7f0;border-color:#bfe6cd}.plan-chip.on .plan-ico{color:#1f9d57}.plan-ico{color:#9097ad;font-size:13px}.plan-banner{background:#eef7f0;border:1px solid #cdeed8;border-radius:12px;align-items:center;gap:10px;margin-bottom:16px;padding:11px 13px;display:flex}.pb-dot{color:#fff;background:#1f9d57;border-radius:50%;flex:0 0 22px;justify-content:center;align-items:center;width:22px;height:22px;font-size:13px;font-weight:700;display:inline-flex}.pb-title{color:#176b3c;font-size:14px;font-weight:600}.pb-sub{color:#2e8a55;font-size:12px}.usage{flex-direction:column;gap:10px;display:flex}.usage-top{color:var(--ink);justify-content:space-between;margin-bottom:4px;font-size:13px;display:flex}.usage-num{color:#8088a0;font-variant-numeric:tabular-nums}.usage-track{background:#eef0f7;border-radius:999px;height:6px;overflow:hidden}.usage-fill{background:var(--accent);border-radius:999px;height:100%;transition:width .3s}.plan-actions{margin-top:16px}.plan-renew{cursor:pointer;background:var(--accent);color:#fff;border:none;border-radius:11px;width:100%;margin-top:16px;padding:12px;font-size:14px;font-weight:600}.plan-cards{grid-template-columns:repeat(3,1fr);gap:8px;margin:4px 0 2px;display:grid}.plan-card{cursor:pointer;text-align:center;background:#fafbff;border:1.5px solid #dde2f3;border-radius:12px;flex-direction:column;align-items:center;gap:2px;padding:13px 8px 11px;transition:border-color .15s,box-shadow .15s,transform .1s;display:flex;position:relative}.plan-card:hover{border-color:var(--accent);box-shadow:0 4px 14px #3a5bff1f}.plan-card:active{transform:translateY(1px)}.plan-card.best{border-color:var(--accent);background:#f0f3ff}.pc-title{color:#6a7090;font-size:12px}.pc-price{font-family:var(--disp);color:var(--ink);margin:1px 0;font-size:16px;font-weight:700}.pc-month{color:#9097ad;font-size:11px}.plan-badge{background:var(--accent);color:#fff;white-space:nowrap;border-radius:999px;padding:2px 8px;font-size:10px;position:absolute;top:-9px;left:50%;transform:translate(-50%)}.wallet-sec{border-top:1px solid #eef0f7;margin-top:22px;padding-top:16px}.wallet-head{justify-content:space-between;align-items:baseline;display:flex}.wallet-h{font-family:var(--disp);color:var(--ink);font-size:15px;font-weight:600}.wallet-bal{font-family:var(--disp);color:var(--ink);font-size:16px;font-weight:700}.wallet-hint{color:#8088a0;margin:4px 0 12px;font-size:12.5px;line-height:1.45}.topup-msg.warn{color:#a23c1d;background:#fdece8;border-color:#f6c3b3}@media (width<=440px){.plan-cards{grid-template-columns:1fr 1fr}.plan-chip{padding:6px 10px;font-size:12px}}.plan-row{grid-template-columns:repeat(3,1fr);gap:10px;margin:8px 0 4px;display:grid}.plan-tile{text-align:center;background:#fafbff;border:1.5px solid #dde2f3;border-radius:14px;padding:16px 10px 14px;position:relative}.plan-tile.best{border-color:var(--accent);background:#f0f3ff}.plan-tile-badge{background:var(--accent);color:#fff;border-radius:999px;padding:2px 10px;font-size:11px;position:absolute;top:-10px;left:50%;transform:translate(-50%)}.plan-tile-title{color:#6a7090;font-size:13px}.plan-tile-price{font-family:var(--disp);color:var(--ink);margin:3px 0;font-size:20px;font-weight:700}.plan-tile-month{color:#9097ad;font-size:12px}@media (width<=520px){.plan-row{grid-template-columns:1fr}}.panel-links{flex-wrap:wrap;gap:16px;margin-top:14px;display:flex}.hist-table{border-collapse:collapse;width:100%;margin-top:8px}.hist-table th{text-align:left;text-transform:uppercase;letter-spacing:.4px;color:#9097ad;border-bottom:2px solid #eef0f7;padding:8px 10px;font-size:12px;font-weight:600}.hist-table th:nth-child(3),.hist-table th:nth-child(4),.hist-table td:nth-child(3),.hist-table td:nth-child(4){text-align:right;white-space:nowrap}.hist-table td{color:var(--ink);border-bottom:1px solid #f0f2f8;padding:11px 10px;font-size:14px}.ht-date{color:#8088a0;white-space:nowrap;font-size:13px}.ht-amt{font-variant-numeric:tabular-nums;font-weight:600}.ht-amt.plus{color:#1f9d57}.ht-amt.minus{color:#8a90a6}.ht-bal{color:#5a6076;font-variant-numeric:tabular-nums}@media (width<=520px){.hist-table th:nth-child(4),.hist-table td:nth-child(4){display:none}.ht-date{font-size:12px}}.plan-card.sel{border-color:var(--accent);background:#eaf0ff;box-shadow:0 0 0 2px #3a5bff2e}.inline-link{color:var(--accent);cursor:pointer;text-decoration:underline}.rate-list{border:1px solid #eef0f7;border-radius:12px;margin:4px 0 16px;padding:10px 14px}.rate-h{text-transform:uppercase;letter-spacing:.4px;color:#9097ad;margin-bottom:6px;font-size:12px;font-weight:600}.rate-row{color:var(--ink);justify-content:space-between;padding:4px 0;font-size:14px;display:flex}.rate-price{font-variant-numeric:tabular-nums;color:var(--ink);font-weight:600}@media (width<=560px){.topbar{padding:10px 12px!important}.topbar-right{gap:8px!important;min-width:0!important}.who{display:none!important}.logo-sm .logo-word{font-size:18px!important}.logo-sm .logo-badge svg{width:26px!important;height:26px!important}.logout{padding:7px 11px!important;font-size:13px!important}.plan-chip{padding:6px 9px!important;font-size:12px!important}}@media (width<=440px){.topup-back{align-items:flex-start!important;padding:10px!important}.topup{margin-top:8px;border-radius:16px!important;padding:22px 16px 18px!important}.plan-cards{grid-template-columns:repeat(3,1fr)!important;gap:6px!important}.pc-price{font-size:15px!important}.pc-month{font-size:10px!important}.tiers{grid-template-columns:1fr!important}}.ocr-zone{background:#f7f8fd;border:2px dashed #c7cef0;border-radius:14px;flex-wrap:wrap;align-items:center;gap:10px;margin-top:10px;padding:14px 16px;transition:border-color .15s,background .15s;display:flex}.ocr-zone.drag{border-color:var(--accent);background:#eaf0ff}.ocr-zone .ocr-hint{color:#8088a0;font-size:13px}@media (width<=560px){.ocr-zone{gap:8px;padding:12px}.ocr-zone .ocr-hint{width:100%}}.assign-card .assign-groups{flex-direction:column;align-items:stretch;gap:6px;margin-bottom:12px;display:flex}.assign-card .assign-groups .mark{border:1px solid var(--line);white-space:normal;cursor:pointer;background:#fff;border-radius:10px;align-items:center;gap:10px;width:100%;margin:0;padding:10px 12px;font-size:14px;line-height:1.2;display:flex}.assign-card .assign-groups .mark input{flex:none;width:auto;margin:0}@media (width<=560px){.assign-card .assign-groups .mark{padding:9px 11px;font-size:13px}}.katex{font-size:1.08em}.q-text .katex,.sp-q-text .katex,.res-q-text .katex,.prev-q .katex{font-size:1.12em}@media (width<=560px){.katex{font-size:1.15em}}.q-card textarea.q-cond,.block-card textarea.q-cond{resize:vertical;line-height:1.45;min-height:130px!important}.sp-verdict.part{color:#b8860b}.sp-verdict.part:before{content:""}.res-grade .grade-half{color:#8a6d1a!important;background:#fff5d6!important;border-color:#e8c14a!important}.res-mark.part{color:#b8860b}.ocr-mini{margin-bottom:8px}.ocr-title{color:var(--ink);margin:14px 0 2px;font-size:15px;font-weight:600}.ocr-title .opt{color:#8088a0;margin-left:4px;font-size:13px;font-weight:400}.modal-overlay{z-index:1000;background:#14182873;justify-content:center;align-items:center;padding:16px;display:flex;position:fixed;inset:0}.modal{background:#fff;border-radius:16px;width:100%;max-width:520px;max-height:88vh;padding:20px;overflow-y:auto;box-shadow:0 20px 60px #00000040}.modal-h{justify-content:space-between;align-items:center;margin-bottom:10px;font-size:18px;font-weight:700;display:flex}.modal-x{cursor:pointer;color:#8088a0;background:0 0;border:none;padding:0 4px;font-size:20px;line-height:1}.modal-note{color:#4a5170;margin:0 0 10px;font-size:14px;line-height:1.45}.solve-prompt{border:1px solid var(--line);width:100%;min-height:92px;font:inherit;resize:vertical;box-sizing:border-box;border-radius:10px;padding:10px}.modal-warn{color:#8a6d1a;background:#fff5d6;border:1px solid #e8c14a;border-radius:10px;margin:10px 0;padding:9px 12px;font-size:13px;line-height:1.4}.solve-go,.solve-apply{width:100%}.solve-result{border-top:1px solid var(--line);margin-top:14px;padding-top:12px}.solve-result-h{margin-bottom:6px;font-weight:600}.solve-result-body{white-space:pre-wrap;background:#f6f7fb;border-radius:10px;margin-bottom:12px;padding:12px;line-height:1.55}.topup.pkg-modal{max-width:880px!important}.topup.usage-modal{max-width:440px!important}.lim-box{background:#f4f6fb;border-radius:12px;flex-direction:column;gap:6px;margin:4px 0 16px;padding:12px 14px;display:flex}.lim-row{color:#1c2030;justify-content:space-between;align-items:center;font-size:14px;display:flex}.lim-row .lim-num{font-weight:700}.lim-row.empty .lim-num{color:#c0392b}.lim-row.hot{background:#fff0ee;border-radius:8px;margin:-2px -6px;padding:4px 6px}.pkg-grid{grid-template-columns:repeat(3,1fr);gap:12px;margin-bottom:14px;padding-top:16px;display:grid}.pkg-card.pro{border:2px solid #3a5bff}.pkg-badge{color:#fff;white-space:nowrap;background:#3a5bff;border-radius:8px;padding:3px 10px;font-size:11px;font-weight:600;position:absolute;top:-10px;left:50%;transform:translate(-50%)}.pkg-name{color:#1c2030;margin-bottom:12px;font-size:15px;font-weight:600}.pkg-card.pro .pkg-name{color:#3a5bff}.pkg-card{cursor:pointer;background:#fff;border:1px solid #e3e6f0;border-radius:14px;flex-direction:column;padding:16px 10px;transition:box-shadow .15s,transform .15s;display:flex;position:relative}.pkg-card:hover{transform:translateY(-2px);box-shadow:0 4px 16px #3a5bff1f}.pkg-lines{flex-direction:column;flex:1;gap:10px;display:flex}.pkg-line{align-items:center;gap:7px;display:flex}.mi{color:#1c2030;flex-shrink:0}.usage-label{align-items:center;gap:6px;display:inline-flex}.usage-label .mi{color:#1c2030}.pkg-ico{font-size:14px}.pkg-num{color:#1c2030;font-size:18px;font-weight:700;line-height:1.1}.pkg-lbl{color:#6b7280;white-space:nowrap;font-size:11.5px;line-height:1.3}.pkg-buy{color:#1c2030;cursor:pointer;background:#fff;border:1px solid #c7ccd9;border-radius:10px;margin-top:14px;padding:9px;font-size:14px;font-weight:600}.pkg-buy:hover{background:#f4f6fb}.pkg-buy.pro{color:#fff;background:#3a5bff;border-color:#3a5bff}.pkg-buy.pro:hover{background:#2f49d6}.pkg-price{text-align:center;color:#9aa0ad;margin-top:8px;font-size:12px}.consent-row{color:#6b7280;cursor:pointer;align-items:flex-start;gap:9px;margin-top:4px;font-size:13px;display:flex}.consent-row input{flex-shrink:0;width:16px;height:16px;margin-top:2px}.consent-row a{color:#3a5bff;text-decoration:none}.consent-row a:hover{text-decoration:underline}.pkg-note{color:#9aa0ad;margin:10px 0 0;font-size:12px}@media (width<=560px){.pkg-grid{scroll-snap-type:x mandatory;-webkit-overflow-scrolling:touch;grid-template-columns:none;gap:10px;padding-top:16px;padding-bottom:6px;display:flex;overflow-x:auto}.pkg-card{scroll-snap-align:center;flex-shrink:0;min-width:80%}}.q-card textarea.sol-solution{resize:vertical;width:100%;line-height:1.45;min-height:130px!important}.block-card textarea.theory-body{resize:vertical;width:100%;min-height:130px;line-height:1.5}.fmt-bar{align-items:center;gap:8px;margin:6px 0;display:flex}.fmt-btn{cursor:pointer;color:#1c2030;background:#fff;border:1px solid #d7dbe8;border-radius:8px;width:32px;height:30px;font-size:15px;line-height:1}.fmt-btn:hover{background:#f1f3fb}.fmt-hint{color:#9aa0ad;font-size:12px}.sp-mn .num-field{max-width:260px!important}.ex-box input{width:120px!important}.ex-take .ex-box input{width:130px!important}@media (width<=560px){.ex-box input,.ex-take .ex-box input{width:100px!important}.sp-mn .num-field{max-width:100%!important}}.join-good{font-family:var(--disp);color:#1f9d57;font-size:18px;font-weight:700}.sale-card{border:1px solid var(--line,#e6e8f0);background:#fff;border-radius:14px;flex-wrap:wrap;align-items:center;gap:14px;margin-bottom:14px;padding:14px 16px;display:flex}.sale-toggle{cursor:pointer;color:var(--ink,#1c2030);align-items:center;gap:8px;font-weight:600;display:flex}.sale-toggle input{width:18px;height:18px}.sale-price-row{color:var(--muted,#7a7f94);align-items:center;gap:8px;font-size:14px;display:flex}.sale-price-input{border:1px solid var(--line,#e6e8f0);border-radius:8px;width:110px;padding:7px 10px;font-size:14px}.sale-save{white-space:nowrap}.sale-msg{color:#2b62d6;font-size:13px}.adm{max-width:1100px;margin:0 auto}.adm-stats{grid-template-columns:repeat(6,1fr);gap:10px;margin-bottom:18px;display:grid}.adm-stat{border:1px solid var(--line,#e6e8f0);text-align:center;background:#fff;border-radius:14px;padding:14px 12px}.adm-stat.accent{background:var(--accent,#3a5bff);border-color:var(--accent,#3a5bff)}.adm-stat.accent .adm-stat-v,.adm-stat.accent .adm-stat-l{color:#fff}.adm-stat-v{font-family:var(--disp,"Unbounded");color:var(--ink,#1c2030);font-size:22px;font-weight:700;line-height:1.1}.adm-stat-l{color:var(--muted,#7a7f94);margin-top:4px;font-size:12px}.adm-tabs{gap:8px;margin-bottom:14px;display:flex}.adm-tab{border:1px solid var(--line,#e6e8f0);color:var(--ink,#1c2030);cursor:pointer;background:#fff;border-radius:999px;padding:8px 18px;font-size:14px;font-weight:600}.adm-tab.on{background:var(--ink,#1c2030);color:#fff;border-color:var(--ink,#1c2030)}.adm-search{flex-wrap:wrap;align-items:center;gap:8px;margin-bottom:12px;display:flex}.adm-search input{border:1px solid var(--line,#e6e8f0);border-radius:10px;flex:1;min-width:220px;padding:10px 14px;font-size:15px}.adm-rolefilter{gap:6px;display:flex}.adm-chip{border:1px solid var(--line,#e6e8f0);color:var(--muted,#7a7f94);cursor:pointer;background:#fff;border-radius:999px;padding:7px 14px;font-size:13px;font-weight:600}.adm-chip.on{background:var(--accent,#3a5bff);color:#fff;border-color:var(--accent,#3a5bff)}.adm-table-wrap{border:1px solid var(--line,#e6e8f0);background:#fff;border-radius:14px;overflow-x:auto}.adm-table{border-collapse:collapse;width:100%;font-size:14px}.adm-table th{text-align:left;color:var(--muted,#7a7f94);border-bottom:1px solid var(--line,#e6e8f0);white-space:nowrap;padding:11px 14px;font-size:12px;font-weight:600}.adm-table td{vertical-align:middle;border-bottom:1px solid #f1f2f7;padding:11px 14px}.adm-table tbody tr{cursor:pointer}.adm-table tbody tr:hover{background:#f7f8fc}.adm-table tbody tr:last-child td{border-bottom:none}.adm-table tr.blocked{background:#fff5f5}.adm-u-email{color:var(--ink,#1c2030);font-weight:600}.adm-u-name{color:var(--muted,#7a7f94);font-size:12px}.adm-lim{white-space:nowrap;color:var(--muted,#7a7f94)}.adm-link{color:var(--accent,#3a5bff);cursor:pointer;background:0 0;border:none;font-size:13px;font-weight:600}.adm-tier{color:var(--muted,#7a7f94);background:#eef0f7;border-radius:999px;padding:3px 9px;font-size:12px;font-weight:600}.adm-tier.t-basic{color:#2b62d6;background:#e7f0ff}.adm-tier.t-pro{color:#5b46c8;background:#e9e6ff}.adm-tier.t-business{color:#b5791f;background:#fff0d9}.adm-badge{border-radius:999px;margin-top:4px;padding:2px 8px;font-size:11px;font-weight:600;display:inline-block}.adm-badge.red{color:#c0392b;background:#ffe5e5}.adm-err{color:#c0392b;background:#ffe5e5;border-radius:10px;margin-bottom:12px;padding:10px 14px;font-size:14px}.adm-modal-bg{z-index:1000;background:#14182873;justify-content:center;align-items:center;padding:16px;display:flex;position:fixed;inset:0}.adm-modal{background:#fff;border-radius:18px;width:100%;max-width:640px;max-height:90vh;padding:22px;overflow-y:auto}.adm-modal-head{justify-content:space-between;align-items:flex-start;margin-bottom:16px;display:flex}.adm-modal-email{font-family:var(--disp,"Unbounded");color:var(--ink,#1c2030);word-break:break-all;font-size:18px;font-weight:700}.adm-modal-sub{color:var(--muted,#7a7f94);margin-top:2px;font-size:13px}.adm-x{cursor:pointer;background:#eef0f7;border:none;border-radius:50%;flex-shrink:0;width:32px;height:32px;font-size:15px}.adm-modal-grid{grid-template-columns:repeat(3,1fr);gap:10px;margin-bottom:14px;display:grid}.adm-info{background:#f7f8fc;border-radius:10px;padding:10px 12px}.adm-info-l{color:var(--muted,#7a7f94);font-size:11px}.adm-info-v{color:var(--ink,#1c2030);margin-top:2px;font-size:14px;font-weight:600}.adm-lim-row{color:var(--muted,#7a7f94);background:#f7f8fc;border-radius:10px;margin-bottom:16px;padding:10px 12px;font-size:13px}.adm-lim-row b{color:var(--ink,#1c2030)}.adm-actions{grid-template-columns:1fr 1fr;gap:12px;margin-bottom:8px;display:grid}.adm-act-block{border:1px solid var(--line,#e6e8f0);border-radius:12px;padding:12px}.adm-act-title{color:var(--muted,#7a7f94);margin-bottom:8px;font-size:12px;font-weight:600}.adm-act-row{gap:8px;display:flex}.adm-act-row select{border:1px solid var(--line,#e6e8f0);border-radius:8px;flex:1;padding:8px 10px;font-size:14px}.adm-btn{background:var(--accent,#3a5bff);color:#fff;cursor:pointer;border:none;border-radius:9px;padding:8px 16px;font-size:14px;font-weight:600}.adm-btn:disabled{opacity:.5;cursor:default}.adm-btn.ghost{color:var(--ink,#1c2030);background:#eef0f7}.adm-btn.danger{color:#fff;background:#c0392b}.adm-msg{color:#2b62d6;background:#eef6ff;border-radius:9px;margin:4px 0 8px;padding:9px 12px;font-size:13px}.adm-section-title{color:var(--ink,#1c2030);margin:16px 0 8px;font-size:14px;font-weight:700}.adm-mini-list{flex-direction:column;gap:6px;display:flex}.adm-mini{background:#f7f8fc;border-radius:9px;justify-content:space-between;align-items:center;gap:10px;padding:9px 12px;display:flex}.adm-mini-title{color:var(--ink,#1c2030);font-size:14px}.adm-mini-meta{color:var(--muted,#7a7f94);white-space:nowrap;font-size:12px}.adm-pay-total{color:var(--muted,#7a7f94);margin-bottom:10px;font-size:14px}.adm-pay-total b{color:var(--ink,#1c2030)}@media (width<=720px){.adm-stats{grid-template-columns:repeat(3,1fr)}.adm-modal-grid{grid-template-columns:repeat(2,1fr)}.adm-actions{grid-template-columns:1fr}}.legal-wrap{background:#eef0f7;min-height:100vh;padding:32px 16px}.legal-card{background:#fff;border-radius:16px;max-width:760px;margin:0 auto;padding:32px 36px;box-shadow:0 2px 20px #1c20300f}.legal-back{color:#3a5bff;margin-bottom:18px;font-size:14px;text-decoration:none;display:inline-block}.legal-back:hover{text-decoration:underline}.legal-card h1{color:#1c2030;margin:0 0 20px;font-size:22px;line-height:1.3}.legal-card h2{color:#1c2030;margin:22px 0 8px;font-size:16px}.legal-card p{color:#2c3144;margin:6px 0;font-size:14px;line-height:1.6}.legal-card strong{font-weight:600}@media (width<=560px){.legal-card{padding:22px 18px}}:root{--bg:#eef0f7;--accent:#3a5bff;--ink:#1c2030;--muted:#8089a3;--line:#e2e5f0;--card:#fff;--disp:"Unbounded", system-ui, sans-serif;--body:"Inter", system-ui, sans-serif}*{box-sizing:border-box}body{font-family:var(--body);color:var(--ink);background-color:var(--bg);background-image:linear-gradient(#3a5bff0a 1px,#0000 1px),linear-gradient(90deg,#3a5bff0a 1px,#0000 1px);background-size:26px 26px;margin:0}.center{justify-content:center;align-items:center;min-height:100vh;display:flex}.muted{color:var(--muted)}input,button{font-family:var(--body);font-size:15px}input{border:1px solid var(--line);background:#fbfcff;border-radius:10px;outline:none;width:100%;padding:11px 13px}input:focus{border-color:var(--accent)}.lbl{color:var(--muted);margin:10px 0 5px;font-size:13px;display:block}.auth-wrap{justify-content:center;align-items:center;min-height:100vh;padding:20px;display:flex}.auth-card{background:var(--card);border:1px solid var(--line);border-radius:20px;width:100%;max-width:380px;padding:30px 26px;box-shadow:0 18px 50px #1c203014}.auth-logo{font-family:var(--disp);color:var(--accent);font-size:24px;font-weight:700}.auth-sub{color:var(--muted);text-align:center;margin-top:2px;margin-bottom:22px;font-size:14px}.auth-roles{gap:10px;margin-bottom:14px;display:flex}.role-tile{border:1.5px solid var(--line);cursor:pointer;background:#fbfcff;border-radius:14px;flex-direction:column;flex:1;align-items:center;gap:6px;padding:16px 10px;transition:all .15s;display:flex}.role-tile:hover{border-color:#c7cef0}.role-tile.active{border-color:var(--accent);background:#f0f3ff}.role-emoji{font-size:24px}.auth-msgr{gap:8px;margin-bottom:12px;display:flex}.auth-msgr button{border:1px solid var(--line);cursor:pointer;color:var(--ink);background:#fff;border-radius:10px;flex:1;padding:10px}.auth-msgr button:hover{border-color:#c7cef0}.auth-email-toggle{border:1px dashed var(--line);width:100%;color:var(--muted);cursor:pointer;background:0 0;border-radius:10px;padding:11px}.auth-email-toggle:hover{color:var(--accent);border-color:#c7cef0}.auth-submit{background:var(--accent);color:#fff;cursor:pointer;border:none;border-radius:12px;width:100%;margin-top:16px;padding:13px;font-weight:600}.auth-submit:disabled{opacity:.6;cursor:default}.auth-err{color:#c0392b;margin-top:14px;font-size:13px}.auth-switch{color:var(--muted);text-align:center;margin-top:18px;font-size:14px}.auth-switch span{color:var(--accent);cursor:pointer;font-weight:500}.shell{min-height:100vh}.topbar{-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);border-bottom:1px solid var(--line);z-index:10;background:#fffc;justify-content:space-between;align-items:center;padding:14px 22px;display:flex;position:sticky;top:0}.brand{font-family:var(--disp);color:var(--accent);font-weight:700}.topbar-right{align-items:center;gap:14px;display:flex}.who{flex-direction:column;align-items:flex-end;font-size:14px;line-height:1.25;display:flex}.who-role{color:var(--muted);font-size:11px}.logout{border:1px solid var(--line);cursor:pointer;background:#fff;border-radius:9px;padding:8px 14px}.logout:hover{border-color:#c7cef0}.content{max-width:880px;margin:0 auto;padding:28px 20px}.placeholder{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:28px}.placeholder h2{font-family:var(--disp);margin:0 0 8px}.auth-logo-wrap{justify-content:center;margin-bottom:2px;display:flex}.logo{font-family:var(--disp);-webkit-user-select:none;user-select:none;align-items:center;gap:10px;line-height:1;display:inline-flex}.logo-badge svg{display:block}.logo-word{letter-spacing:-.5px;color:var(--ink);font-weight:800}.logo-word em{color:var(--accent);font-style:normal}.logo-lg .logo-badge svg{width:52px;height:52px}.logo-lg .logo-word{font-size:32px}.logo-md .logo-badge svg{width:40px;height:40px}.logo-md .logo-word{font-size:26px}.logo-sm .logo-badge svg{width:30px;height:30px}.logo-sm .logo-word{font-size:21px}.brand{cursor:pointer}.auth-link-btn{width:100%;box-shadow:none;appearance:none;color:var(--muted,#8b90a3);text-align:center;cursor:pointer;background:0 0;border:none;margin:12px 0 0;padding:0;font-size:14px;line-height:1.2;transition:color .15s;display:block}.auth-link-btn:hover{color:var(--accent,#3a5bff)}.support-foot{text-align:center;color:#9aa0ad;padding:18px 16px 28px;font-size:12px}.support-foot a{color:#6b7280;border-bottom:1px dotted #c2c7d0;text-decoration:none}.support-foot a:hover{color:#3a5bff;border-bottom-color:#3a5bff}
