@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:"0.16.45"}.katex .katex-mathml{clip:rect(1px,1px,1px,1px);border:0;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{color-scheme:light;--bg: #f5f8fc;--surface: rgba(255, 255, 255, .76);--surface-strong: #ffffff;--border: #c7d8f6;--border-strong: #9ec0ff;--text: #1f2a44;--muted: #6b7893;--blue: #4f77ff;--shadow: 0 24px 70px rgba(70, 102, 163, .12)}*{box-sizing:border-box}html,body,#root{min-height:100%}body{margin:0;font-family:Inter,PingFang SC,Hiragino Sans GB,Microsoft YaHei,system-ui,sans-serif;color:var(--text);background:radial-gradient(circle at top,rgba(255,255,255,.9),transparent 32%),linear-gradient(180deg,#fbfcff 0%,var(--bg) 58%,#eef4ff 100%)}body:before{content:"";position:fixed;top:0;right:0;bottom:0;left:0;background:radial-gradient(circle at 20% 20%,rgba(123,161,255,.12),transparent 22%),radial-gradient(circle at 80% 14%,rgba(83,121,255,.1),transparent 18%),radial-gradient(circle at 50% 80%,rgba(159,194,255,.12),transparent 24%);pointer-events:none}#root{position:relative}.business-home{min-height:100vh;color:#182235;background:linear-gradient(90deg,rgba(24,34,53,.045) 1px,transparent 1px),linear-gradient(180deg,rgba(24,34,53,.035) 1px,transparent 1px),linear-gradient(180deg,#f7faf8,#eef4f8 52%,#f8faf7);background-size:44px 44px,44px 44px,auto}.business-nav{position:sticky;top:0;z-index:20;display:flex;align-items:center;justify-content:space-between;gap:24px;width:min(100% - 48px,1180px);margin:0 auto;padding:18px 0;-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px)}.business-brand,.business-nav-actions,.business-footer{display:flex;align-items:center}.business-brand{gap:10px;color:#172033;font-weight:800;text-decoration:none}.business-mark{width:34px;height:34px;display:grid;place-items:center;border-radius:10px;background:#1f5eff;color:#fff;box-shadow:0 10px 24px #1f5eff3d}.business-nav-actions{gap:18px;font-size:14px}.business-nav-actions a,.business-footer a{color:#4a5872;text-decoration:none}.business-nav-actions a:hover,.business-footer a:hover{color:#1f5eff}.business-hero{position:relative;min-height:520px;display:grid;align-items:center;width:min(100% - 48px,1180px);margin:0 auto;padding:72px 0 48px}.business-hero-content{position:relative;z-index:2;width:min(820px,100%);padding:38px 0 16px}.business-eyebrow,.business-section-kicker{margin:0 0 14px;color:#1f5eff;font-size:13px;font-weight:800}.business-hero h1{font-size:clamp(4rem,10vw,9rem);line-height:.88;letter-spacing:0;color:#111827}.business-lead{max-width:560px;margin:28px 0 0;color:#41506a;font-size:18px;line-height:1.85}.business-section,.business-footer{width:min(100% - 48px,1180px);margin:0 auto}.business-section{padding:72px 0}.business-section-head{max-width:620px}.business-section h2,.business-band h2{margin:0;color:#152033;font-size:clamp(1.8rem,3vw,3rem);line-height:1.18;letter-spacing:0}.business-capability-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:1px;margin-top:34px;background:#5c6f8e38;border:1px solid rgba(92,111,142,.22)}.business-capability-grid article{min-height:250px;padding:24px;background:#ffffffc7}.business-capability-grid span{display:inline-flex;padding:6px 9px;border-radius:6px;color:#1f5eff;background:#eef4ff;font-size:12px;font-weight:800}.business-capability-grid h3{margin:42px 0 12px;color:#172033;font-size:22px}.business-capability-grid p{margin:0;color:#4b5a72;line-height:1.8}.business-footer{justify-content:space-between;gap:16px;padding:22px 0 30px;border-top:1px solid rgba(92,111,142,.2);color:#64728a;font-size:13px}.page-shell{min-height:100vh;display:grid;place-items:center;padding:48px 24px}.page-shell.has-workspace{grid-template-columns:minmax(0,430px) minmax(0,1fr);align-items:start;gap:24px;place-items:stretch;max-width:1440px;margin:0 auto}.hero{width:min(100%,920px);text-align:center;animation:float-in .52s ease-out both}.page-shell.has-workspace .hero{width:100%;justify-self:end}.eyebrow{display:inline-flex;align-items:center;gap:8px;padding:8px 14px;border:1px solid rgba(120,145,197,.18);border-radius:999px;background:#ffffffa6;color:var(--muted);font-size:14px;letter-spacing:.02em;margin-bottom:20px;box-shadow:0 8px 30px #6278a60f}h1{margin:0;font-size:clamp(2rem,5vw,3.1rem);line-height:1.1;letter-spacing:-.04em}.subtitle{margin:14px 0 0;font-size:16px;color:var(--muted)}.upload-card{position:relative;width:min(100%,430px);margin:32px auto 0;min-height:320px;border:3px dashed var(--border);border-radius:28px;background:linear-gradient(180deg,#ffffffd1,#f5f9ffc2),var(--surface);box-shadow:var(--shadow);display:grid;place-items:center;gap:10px;padding:28px 20px 22px;cursor:pointer;overflow:hidden;align-content:start;transition:transform .18s ease,border-color .18s ease,box-shadow .18s ease,background .18s ease}.upload-card:hover{transform:translateY(-2px);border-color:var(--border-strong);box-shadow:0 28px 80px #4666a329}.upload-card:focus-visible{outline:3px solid rgba(79,119,255,.24);outline-offset:6px}.upload-card.is-dragging{border-color:var(--blue);background:linear-gradient(180deg,#ffffffeb,#e8f0ffe0),var(--surface-strong);transform:scale(1.01)}.upload-card.is-compact{min-height:300px}.upload-card.is-compact h2{font-size:18px}.upload-card.is-compact .hint{font-size:13px}.upload-card.is-compact .upload-badge{width:60px;height:60px}.upload-card.is-compact .upload-icon{width:32px;height:32px}.upload-glow{position:absolute;inset:auto auto -70px -70px;width:180px;height:180px;background:radial-gradient(circle,rgba(79,119,255,.18),transparent 70%);filter:blur(2px)}.upload-badge{width:68px;height:68px;border-radius:50%;display:grid;place-items:center;background:radial-gradient(circle at top,#dbe7ff,#c3d7ff);color:var(--blue);box-shadow:inset 0 1px #fffc,0 12px 30px #4e75ff29}.upload-icon{width:36px;height:36px}h2{margin:10px 0 0;font-size:19px;letter-spacing:-.02em}.hint{margin:0;color:var(--muted);font-size:14px}.status-row{display:flex;align-items:center;justify-content:center;gap:12px;flex-wrap:wrap}.action-row{width:100%;display:flex;align-items:center;justify-content:center;gap:12px;flex-wrap:wrap;margin-top:18px}.start-button{border:0;border-radius:999px;padding:12px 20px;background:linear-gradient(135deg,var(--blue),#2f58f3);color:#fff;font-size:14px;font-weight:600;cursor:pointer;box-shadow:0 16px 32px #4f77ff3d;transition:transform .16s ease,box-shadow .16s ease,opacity .16s ease}.start-button:hover:not(:disabled){transform:translateY(-1px);box-shadow:0 20px 36px #4f77ff4d}.start-button:disabled{opacity:.45;cursor:not-allowed;box-shadow:none}.start-button:focus-visible{outline:3px solid rgba(79,119,255,.24);outline-offset:3px}.action-note{color:var(--muted);font-size:12px}.upload-phone{width:min(400px,100%);display:grid;grid-template-rows:auto 1fr;overflow:hidden;border:7px solid #202734;border-radius:26px;background:#f7f8fb;box-shadow:0 26px 54px #0f172a2e;animation:float-in .52s ease-out both}.upload-phone-header{display:flex;align-items:center;gap:12px;padding:14px 18px;background:#fffffff5;border-bottom:1px solid #e6eaf2}.upload-phone-brand{display:flex;align-items:center;gap:10px;color:#111827;font-size:15px;font-weight:700}.upload-phone-body{overflow-y:auto;padding:28px 20px 32px;display:flex;flex-direction:column;align-items:center;text-align:center}.upload-phone-body h1{font-size:26px;margin:0;letter-spacing:-.03em}.upload-phone-body .upload-card{margin-top:20px;width:100%}.upload-phone-body .action-row{margin-top:16px}.format-pill{padding:8px 16px;border-radius:999px;background:#ffffffe6;border:1px solid rgba(198,210,233,.72);color:var(--muted);font-size:13px;box-shadow:0 8px 24px #374d770d}.ghost-button{border:1px solid rgba(158,192,255,.72);background:#ffffffeb;color:var(--text);border-radius:999px;padding:8px 14px;font-size:13px;cursor:pointer;box-shadow:0 8px 24px #374d770d;transition:transform .16s ease,border-color .16s ease,box-shadow .16s ease}.ghost-button:hover{transform:translateY(-1px);border-color:var(--border-strong);box-shadow:0 12px 28px #374d7714}.ghost-button:focus-visible{outline:3px solid rgba(79,119,255,.24);outline-offset:3px}.preview-grid{width:100%;display:grid;grid-template-columns:repeat(auto-fit,minmax(120px,1fr));gap:10px;margin-top:4px}.preview-card{position:relative;margin:0;padding:6px;border-radius:14px;background:#ffffffe6;border:1px solid rgba(198,210,233,.8);box-shadow:0 10px 24px #374d7714;text-align:left;cursor:zoom-in;transition:transform .16s ease,box-shadow .16s ease,border-color .16s ease}.preview-card:hover{transform:translateY(-1px);border-color:var(--border-strong);box-shadow:0 14px 28px #374d771f}.preview-card:focus-visible{outline:3px solid rgba(79,119,255,.24);outline-offset:3px}.preview-card img{display:block;width:100%;height:92px;object-fit:cover;border-radius:10px}.preview-card figcaption{display:grid;gap:3px;padding:8px 2px 2px}.preview-name{font-size:12px;color:var(--text);overflow:hidden;white-space:nowrap;text-overflow:ellipsis}.preview-source{font-size:11px;color:var(--muted)}.remove-button{position:absolute;top:12px;right:12px;width:28px;height:28px;border:0;border-radius:50%;background:#1f2a44bd;color:#fff;font-size:18px;line-height:1;cursor:pointer}.remove-button:focus-visible{outline:3px solid rgba(79,119,255,.24);outline-offset:2px}.file-input{position:absolute;top:0;right:0;bottom:0;left:0;opacity:0;pointer-events:none}.workspace-panel{width:100%;padding-top:32px}.workspace-card{min-height:calc(100vh - 64px);border-radius:28px;border:1px solid rgba(198,210,233,.9);background:#ffffffd6;box-shadow:var(--shadow);padding:24px;-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px)}.workspace-header{display:flex;align-items:flex-start;justify-content:space-between;gap:16px;margin-bottom:20px}.workspace-header h2{margin:0;font-size:22px}.workspace-counter{border-radius:999px;padding:8px 12px;background:#4f77ff1a;color:var(--blue);font-size:13px;font-weight:600}.workspace-empty{margin:40px 0 0;color:var(--muted);font-size:15px}.workspace-list{display:grid;gap:16px}.assistant-results{display:grid;gap:12px}.result-card{border-radius:18px;border:1px solid rgba(198,210,233,.78);background:linear-gradient(180deg,#fafcfffa,#f4f8fff5);padding:14px}.result-card-head{display:flex;align-items:flex-start;justify-content:space-between;gap:12px;margin-bottom:10px}.result-metrics{display:grid;gap:10px}.result-chip{display:grid;gap:4px;padding:10px 12px;border-radius:14px;border:1px solid rgba(198,210,233,.7);background:#ffffffe6}.result-chip span{font-size:12px;color:var(--muted)}.result-chip strong{font-size:15px;color:var(--text);word-break:break-word}.result-text{padding:12px 13px;border-radius:14px;background:#1f2a440a;color:var(--muted);font-size:13px;line-height:1.65;white-space:pre-wrap;word-break:break-word}.result-pre{margin:0;padding:12px 13px;border-radius:14px;background:#1f2a440a;color:var(--text);font-size:13px;line-height:1.65;white-space:pre-wrap;word-break:break-word;max-height:320px;overflow:auto}.markdown-content{display:grid;gap:12px;color:var(--text);line-height:1.7}.markdown-content>:first-child{margin-top:0}.markdown-content>:last-child{margin-bottom:0}.md-heading{margin:0;color:var(--text);letter-spacing:-.02em}.md-heading-2{font-size:20px}.md-heading-3{font-size:18px}.md-heading-4{font-size:16px}.md-paragraph{margin:0;color:var(--text);white-space:pre-wrap;word-break:break-word}.md-list{margin:0;padding-left:22px;display:grid;gap:6px}.md-list-ordered{list-style:none;padding-left:0}.md-list-ordered>li{padding-left:0}.md-list li{padding-left:2px}.md-quote{margin:0;padding:12px 14px;border-left:3px solid rgba(79,119,255,.28);border-radius:10px;background:#1f2a440a;color:var(--muted)}.math-inline{display:inline-flex;align-items:center;vertical-align:middle}.math-block-wrap{overflow-x:auto;padding:2px 0}.math-block{display:block}.math-inline .katex,.math-block .katex{font-size:1em}.teaching-content,.teaching-reference-card{display:grid;gap:14px}.teaching-reference-title{color:var(--text);font-size:16px;font-weight:800;line-height:1.35}.teaching-reference-fields{display:grid;gap:12px}.teaching-reference-field{display:grid;gap:6px}.teaching-reference-field-title{color:var(--text);font-size:14px;font-weight:800}.teaching-reference-field-body{color:var(--text);font-size:13px;line-height:1.75;white-space:pre-wrap;word-break:break-word}.teaching-reference-field-body .md-paragraph{margin:0 0 6px}.teaching-reference-figure{display:grid;gap:8px;margin:0}.teaching-reference-figure figcaption{color:var(--muted);font-size:12px;font-weight:700;line-height:1.4}.teaching-reference-image{display:block;width:100%;max-height:520px;object-fit:contain;border-radius:10px;border:1px solid rgba(198,210,233,.62);background:#fff}.thinking-path-content,.thinking-path-explorer{display:grid;gap:16px}.thinking-path-section{display:grid;gap:10px;padding:12px 13px;border-radius:14px;background:#1f2a440a}.thinking-path-section-title{color:var(--muted);font-size:13px;font-weight:600;letter-spacing:.01em}.thinking-path-subquestions{display:grid;gap:12px}.thinking-path-tabs{display:flex;flex-wrap:wrap;gap:10px;padding:2px 0 10px;border-bottom:1px solid rgba(198,210,233,.45)}.thinking-path-tab{-webkit-appearance:none;-moz-appearance:none;appearance:none;border:1px solid rgba(198,210,233,.86);border-radius:999px;background:#fffffff0;color:var(--text);cursor:pointer;font:inherit;font-size:13px;font-weight:700;padding:10px 16px;transition:background .16s ease,border-color .16s ease,box-shadow .16s ease,color .16s ease,transform .16s ease}.thinking-path-tab:hover{border-color:#4f77ff9e;box-shadow:0 8px 18px #4f77ff1f;transform:translateY(-1px)}.thinking-path-tab.is-active{border-color:transparent;background:linear-gradient(135deg,#4f77ff,#3156d9);box-shadow:0 12px 24px #3156d93d;color:#fff}.thinking-path-subquestion{display:grid;gap:16px}.teaching-visual{display:grid;gap:10px;margin:0;padding:12px;border:1px solid rgba(198,210,233,.7);border-radius:14px;background:#ffffffe0}.teaching-visual-title{color:var(--muted);font-size:12px;font-weight:600}.teaching-visual img{display:block;width:100%;max-height:360px;object-fit:contain;border-radius:10px;background:#fff}.thinking-path-subquestion-title{color:var(--text);font-size:14px;font-weight:600;letter-spacing:.01em}.thinking-path-subquestion-grid{display:grid;gap:10px}.thinking-path-dimension{display:grid;gap:8px}.thinking-path-dimension-title{color:var(--muted);font-size:13px;font-weight:600}.thinking-path-step-list{display:grid;gap:16px}.thinking-path-step{display:grid;gap:14px;padding:18px;border-radius:16px;background:#fffffff0;border:1px solid rgba(198,210,233,.72);box-shadow:0 12px 28px #1f2a440f}.thinking-path-step.is-complete{border-color:#71da916b;background:linear-gradient(180deg,#fafffcfa,#ffffffe0)}.thinking-path-step.is-current{border-color:#4f77ffdb;box-shadow:0 16px 34px #4f77ff29,0 0 0 1px #4f77ff33}.thinking-path-step-head{display:flex;align-items:flex-start;gap:12px}.thinking-path-step-badge{display:inline-flex;align-items:center;justify-content:center;flex:0 0 auto;width:26px;height:26px;border-radius:999px;background:#4f77ff1f;color:var(--blue);font-size:13px;font-weight:800}.thinking-path-step.is-current .thinking-path-step-badge{background:linear-gradient(135deg,#5b84ff,#3156d9);box-shadow:0 8px 16px #4f77ff47;color:#fff}.thinking-path-step.is-complete .thinking-path-step-badge{background:#71da912e;color:#4ea764}.thinking-path-step-title{color:var(--text);font-size:15px;font-weight:800;line-height:1.35}.thinking-path-step-status{color:#55b86c;font-size:12px;font-weight:700;line-height:1.5}.thinking-path-step-body{display:grid;gap:10px;padding-left:38px}.thinking-path-continue{justify-self:end;display:inline-flex;align-items:center;gap:8px;-webkit-appearance:none;-moz-appearance:none;appearance:none;border:0;border-radius:999px;background:#4f77ff1a;color:var(--blue);cursor:pointer;font:inherit;font-size:13px;font-weight:800;padding:9px 12px 9px 14px;transition:background .16s ease,box-shadow .16s ease,transform .16s ease}.thinking-path-continue:hover{background:#4f77ff29;box-shadow:0 10px 18px #4f77ff24;transform:translateY(-1px)}.thinking-node{display:grid;gap:8px}.thinking-node-title{color:var(--text);font-size:14px;font-weight:600}.thinking-node-meta{display:flex;flex-wrap:wrap;gap:8px}.thinking-node-analysis{padding:12px 13px;border-radius:14px;background:#1f2a4409;color:var(--text);font-size:13px;line-height:1.7;white-space:pre-wrap;word-break:break-word}.thinking-node-extras{display:grid;gap:10px}.thinking-node-extra{display:grid;gap:6px}.thinking-node-extra-title{color:var(--muted);font-size:12px;font-weight:600}.thinking-node-extra-value{display:grid;gap:8px}.teaching-section{display:grid;gap:10px;padding:12px 13px;border-radius:14px;background:#1f2a440a}.teaching-section-title{color:var(--muted);font-size:13px;font-weight:600;letter-spacing:.01em}.teaching-correction-list,.teaching-correction-explorer{display:grid;gap:16px}.teaching-correction-subquestion{display:grid;gap:14px}.teaching-correction-subquestion-title{display:inline-flex;align-items:center;width:fit-content;border:1px solid rgba(198,210,233,.86);border-radius:999px;background:#fffffff0;color:var(--text);font-size:13px;font-weight:800;padding:9px 15px}.teaching-correction-steps{display:grid;gap:14px}.teaching-correction-step{display:grid;gap:12px;padding:16px 18px;border-radius:16px;background:#fffffff0;border:1px solid rgba(198,210,233,.72);box-shadow:0 12px 28px #1f2a440f}.teaching-correction-step.is-current{border-color:#4f77ff85;box-shadow:0 12px 26px #4f77ff1a,0 0 0 1px #4f77ff1a}.teaching-correction-step-head{display:flex;align-items:center;gap:12px}.teaching-correction-step-badge{display:inline-flex;align-items:center;justify-content:center;flex:0 0 auto;width:26px;height:26px;border-radius:999px;background:linear-gradient(135deg,#5b84ff,#3156d9);box-shadow:0 8px 16px #4f77ff3d;color:#fff;font-size:13px;font-weight:800}.teaching-correction-step-title{color:var(--text);font-size:15px;font-weight:800;line-height:1.35}.teaching-correction-step-body{display:grid;gap:8px;padding-left:38px;color:var(--text);font-size:13px;line-height:1.75;word-break:break-word}.nested-object{display:grid;gap:10px}.nested-object-item{display:grid;gap:8px;padding:10px 12px;border-radius:12px;background:#ffffffe0;border:1px solid rgba(198,210,233,.72)}.nested-object-key{font-size:13px;color:var(--muted);font-weight:600}.nested-object-value{display:grid;gap:8px}.nested-array{display:grid;gap:10px}.nested-array-item{display:grid}.result-empty{margin:0;color:var(--muted);font-size:13px}.workspace-status.is-live{display:inline-flex;align-items:center;gap:10px}.status-spinner{width:14px;height:14px;border-radius:50%;border:2px solid rgba(79,119,255,.28);border-top-color:var(--blue);animation:spin .7s linear infinite}.workspace-index{color:var(--muted);font-size:12px;margin-bottom:4px}.subject-result{font-size:18px;font-weight:700;color:var(--text)}.workspace-name{font-size:16px;font-weight:600;color:var(--text);word-break:break-all}.workspace-status{flex:0 0 auto;border-radius:999px;padding:6px 10px;font-size:12px;font-weight:600}.workspace-status.is-idle,.workspace-status.is-initializing{background:#ffc24f24;color:#9a5d00}.workspace-status.is-starting,.workspace-status.is-streaming{background:#4f77ff24;color:var(--blue)}.workspace-status.is-done,.workspace-status.is-ready{background:#4ac97a24;color:#12643b}.workspace-status.is-error{background:#ff5a5a1f;color:#b02a2a}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.tool-step-log{display:grid;gap:5px;margin-bottom:14px;padding:10px 12px;border-radius:12px;background:#4f77ff0d;border:1px solid rgba(79,119,255,.12)}.tool-step-entry{display:flex;align-items:center;justify-content:space-between;gap:8px;font-size:12px;line-height:1.4}.tool-step-label{color:var(--text);flex:1 1 auto;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.tool-step-duration{flex:0 0 auto;font-variant-numeric:tabular-nums;font-size:11px;color:var(--muted);background:#4f77ff1a;padding:1px 6px;border-radius:6px}.upload-url-block{display:grid;gap:8px}.upload-url-block label,.meta-grid span{color:var(--muted);font-size:12px}.upload-url-block textarea{width:100%;min-height:92px;resize:vertical;border-radius:14px;border:1px solid rgba(198,210,233,.9);background:#fbfdff;color:var(--text);padding:12px 14px;font:inherit;line-height:1.5}.meta-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin-top:12px}.meta-grid div{display:grid;gap:6px;padding:12px 14px;border-radius:14px;background:#f5f8fce6}.meta-grid strong{font-size:13px;word-break:break-all;font-weight:600;color:var(--text)}.error-note{margin-top:12px;padding:12px 14px;border-radius:14px;background:#ff5a5a14;color:#b02a2a;font-size:13px}.mobile-teacher-shell{min-height:100vh;display:grid;place-items:center;padding:32px 16px;background:#fff}.mobile-teacher-phone{width:min(448px,100%);height:min(1080px,calc(100vh - 32px));min-height:720px;display:grid;grid-template-rows:auto auto 1fr auto;overflow:hidden;border:7px solid #202734;border-radius:26px;background:#f7f8fb;box-shadow:0 26px 54px #0f172a2e}.mobile-timing-strip{overflow:hidden;background:#fffffff5}.mobile-timing-strip .tool-step-log{margin-bottom:0;border-radius:0;border-left:none;border-right:none;border-top:none;padding:8px 18px;background:transparent;border-bottom-color:#dfe5ef}.mobile-teacher-header,.mobile-teacher-footer{display:flex;align-items:center;gap:12px;padding:14px 18px;background:#fffffff5;border-bottom:1px solid #e6eaf2}.mobile-teacher-footer{border-top:1px solid #dfe5ef;border-bottom:0;justify-content:space-between}.mobile-teacher-brand{display:flex;align-items:center;gap:10px;min-width:0;flex:1;color:#111827}.mobile-teacher-bot,.mobile-chat-avatar{width:34px;height:34px;flex:0 0 auto;display:grid;place-items:center;border-radius:50%;background:#4c6df5;color:#fff;font-weight:800}.mobile-ghost-button{border:0;border-radius:8px;background:#f0f2f6;color:#5c6473;padding:9px 12px;font-weight:700;cursor:pointer}.mobile-teacher-body{overflow:auto;padding:20px 20px 96px}.mobile-chat-row{display:flex;align-items:flex-start;gap:12px;margin-bottom:16px}.mobile-chat-avatar{background:#eef3ff;color:#4c6df5;border:1px solid #d7e1ff}.mobile-chat-bubble{padding:14px 16px;border-radius:16px;background:#fff;color:#1f2937;font-weight:650;line-height:1.65;box-shadow:0 2px 10px #0f172a0f}.mobile-original-card,.mobile-visual-card,.mobile-fallback-card{margin:0 0 18px;padding:10px;border-radius:12px;background:#fff;box-shadow:0 2px 12px #0f172a0f}.mobile-original-card img,.mobile-visual-card img{display:block;width:100%;max-height:230px;object-fit:contain;border-radius:9px;background:#f4f6fa}.mobile-original-card figcaption{margin-top:8px;color:#667085;font-size:12px;font-weight:700}.mobile-original-empty{height:96px;display:grid;place-items:center;border-radius:9px;background:#f4f6fa;color:#98a2b3;font-weight:700}.mobile-subquestion-tabs{position:sticky;top:-20px;z-index:2;display:flex;gap:10px;margin:0 -20px 16px;padding:10px 20px;background:#f7f8fbf5;border-bottom:1px solid #e9edf5}.mobile-subquestion-tab{border:1px solid #d9deea;border-radius:14px;background:#fff;color:#1f2937;padding:10px 18px;font-weight:800;cursor:pointer;box-shadow:0 2px 8px #0f172a0d}.mobile-subquestion-tab.is-active{border-color:#3d5af5;background:#3d5af5;color:#fff}.mobile-visual-loading{min-height:134px;display:grid;place-items:center;gap:10px;margin:0 0 18px;border:1px solid #d9e5ff;border-radius:12px;background:#f1f6ff;color:#4f77ff;text-align:center}.mobile-spinner{width:26px;height:26px;border-radius:50%;border:3px solid rgba(79,119,255,.22);border-top-color:#4f77ff;animation:spin .76s linear infinite}.mobile-step-list{display:grid;gap:12px}.mobile-step-card{padding:18px 16px;border:1px solid #b8efc8;border-radius:14px;background:#fff}.mobile-step-card.is-current{border-color:#5b85ff;box-shadow:0 0 0 2px #4f77ff14}.mobile-step-head{display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:10px;margin-bottom:10px}.mobile-step-badge{width:24px;height:24px;display:grid;place-items:center;border-radius:50%;background:#4f77ff;color:#fff;font-size:13px;font-weight:900}.mobile-step-card.is-complete .mobile-step-badge{background:#ddf8e5;color:#2dbd5f}.mobile-step-title{color:#111827;font-size:16px;font-weight:900}.mobile-mastered{color:#22b35a;font-size:12px;font-weight:900}.mobile-step-body{color:#374151;line-height:1.7}.mobile-step-body .thinking-node{padding:0;border:0;background:transparent;box-shadow:none}.mobile-step-body .thinking-node-title,.mobile-step-body .thinking-node-meta{display:none}.mobile-step-actions{display:flex;justify-content:flex-end;gap:16px;margin-top:14px;padding-top:12px;border-top:1px dashed #edf0f5}.mobile-soft-button,.mobile-primary-link,.mobile-back-link{border:0;background:transparent;color:#6b7280;font-weight:800;cursor:pointer}.mobile-primary-link,.mobile-back-link{color:#2f58f3}.mobile-summary-block{display:grid;gap:12px;margin-top:18px}.mobile-summary-title{color:#2f3edc;font-size:17px;font-weight:900}.mobile-summary-block p{margin:0;line-height:1.8}.mobile-finished{text-align:center;color:#3abb68;font-weight:900}.mobile-cta,.mobile-answer-button,.mobile-disabled-button{min-height:50px;border:0;border-radius:13px;padding:0 16px;text-align:left;font-size:15px;font-weight:900;cursor:pointer}.mobile-cta{background:#3d5af5;color:#fff}.mobile-answer-button{border:1px solid #e1e6ef;background:#fff;color:#1f2937}.mobile-disabled-button{background:#eef0f4;color:#6b7280;text-align:center}.mobile-answer-page h2{margin:10px 0 14px}.mobile-error-note{margin-bottom:12px;padding:12px;border-radius:12px;background:#fff1f1;color:#b42318}.mobile-icon-button,.mobile-talk-button{border:1px solid #d9e2f2;background:#f8fafc;color:#4f77ff;font-weight:900;cursor:pointer}.mobile-icon-button{width:36px;height:36px;border-radius:50%}.mobile-talk-button{flex:1;height:44px;border-radius:999px;background:#edf4ff;font-size:16px}.teaching-action-overlay{position:fixed;top:0;right:0;bottom:0;left:0;z-index:45;display:grid;place-items:center;padding:24px;background:#0f172a7a;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);animation:fade-in .16s ease-out both}.teaching-action-panel{width:min(420px,100%);display:grid;gap:20px;padding:22px;border-radius:18px;background:#fffffffa;border:1px solid rgba(198,210,233,.9);box-shadow:0 24px 70px #0f172a3d}.teaching-action-label{color:var(--muted);font-size:12px;margin-bottom:6px}.teaching-action-title{margin:0;font-size:20px}.teaching-action-options{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.teaching-action-button{min-height:48px;border:1px solid rgba(158,192,255,.72);background:#fffffff5;color:var(--text);border-radius:12px;font-size:15px;font-weight:700;cursor:pointer;box-shadow:0 8px 24px #374d770f}.teaching-action-button:hover{border-color:var(--border-strong)}.teaching-action-button:focus-visible{outline:3px solid rgba(79,119,255,.24);outline-offset:3px}.teaching-action-button:disabled{cursor:not-allowed;opacity:.62}.image-preview-overlay{position:fixed;top:0;right:0;bottom:0;left:0;z-index:40;display:grid;place-items:center;padding:24px;background:#0f172a9e;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);animation:fade-in .16s ease-out both}.image-preview-panel{width:min(960px,100%);max-height:min(92vh,900px);display:grid;gap:16px;padding:18px;border-radius:24px;background:#fffffff5;border:1px solid rgba(198,210,233,.86);box-shadow:0 28px 80px #0f172a47}.image-preview-panel-head{display:flex;align-items:flex-start;justify-content:space-between;gap:16px}.image-preview-label{color:var(--muted);font-size:12px;margin-bottom:4px}.image-preview-name{font-size:16px;font-weight:600;color:var(--text);word-break:break-all}.image-preview-close{border:1px solid rgba(158,192,255,.72);background:#fffffff5;color:var(--text);border-radius:999px;padding:8px 14px;font-size:13px;cursor:pointer;box-shadow:0 8px 24px #374d770d}.image-preview-close:hover{border-color:var(--border-strong)}.image-preview-close:focus-visible{outline:3px solid rgba(79,119,255,.24);outline-offset:3px}.image-preview-nav{display:flex;align-items:center;justify-content:center;gap:12px;flex-wrap:wrap}.image-preview-nav-button{border:1px solid rgba(158,192,255,.72);background:#fffffff5;color:var(--text);border-radius:999px;padding:8px 14px;font-size:13px;cursor:pointer;box-shadow:0 8px 24px #374d770d}.image-preview-nav-button:hover{border-color:var(--border-strong)}.image-preview-nav-button:focus-visible{outline:3px solid rgba(79,119,255,.24);outline-offset:3px}.image-preview-counter{color:var(--muted);font-size:13px}.image-preview-large{display:block;width:100%;max-height:calc(92vh - 110px);object-fit:contain;border-radius:18px;background:linear-gradient(180deg,#f7fafff5,#eef4fff5)}.img-zoomable{cursor:zoom-in}.image-zoom-overlay{position:fixed;top:0;right:0;bottom:0;left:0;z-index:100;display:grid;place-items:center;padding:20px;background:#0a0f1ed9;-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);animation:fade-in .15s ease-out both}.image-zoom-img{display:block;max-width:100%;max-height:calc(100vh - 80px);object-fit:contain;border-radius:14px;box-shadow:0 24px 80px #00000080}.image-zoom-close{position:absolute;top:16px;right:16px;border:1px solid rgba(255,255,255,.25);background:#ffffff1f;color:#fff;border-radius:999px;padding:8px 18px;font-size:13px;cursor:pointer;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px)}.image-zoom-close:hover{background:#ffffff38}.teacher2-shell{min-height:100vh;color:#c8d6e8;background:radial-gradient(circle at 18% 12%,rgba(75,140,245,.18),transparent 28%),linear-gradient(180deg,#060912,#0b1020);font-family:-apple-system,BlinkMacSystemFont,PingFang SC,Helvetica Neue,sans-serif}.teacher2-topbar{position:sticky;top:0;z-index:20;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:14px 24px;border-bottom:1px solid #1e2d45;background:#060912e6;-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px)}.teacher2-topbar div{display:flex;align-items:center;gap:12px;min-width:0}.teacher2-topbar strong{color:#edf5ff;font-size:18px}.teacher2-topbar span{color:#8aa0be;font-size:12px;font-weight:700}.teacher2-topbar button,.teacher2-upload-actions button{border:1px solid #244266;border-radius:9px;background:#111827;color:#c8d6e8;padding:10px 16px;font-weight:800;cursor:pointer}.teacher2-topbar button:not(:disabled):hover,.teacher2-upload-actions button:not(:disabled):hover{border-color:#4b8cf5;background:#4b8cf533}.teacher2-topbar button:disabled,.teacher2-upload-actions button:disabled{cursor:not-allowed;opacity:.5}.teacher2-topbar-actions{display:flex;align-items:center;gap:8px}.teacher2-topbar button.is-active{border-color:#4b8cf5;background:#4b8cf526;color:#6ca6f5}.teacher2-stage{display:flex;align-items:flex-start;justify-content:center;gap:30px;width:min(100%,1560px);margin:0 auto;padding:28px 24px 42px}.teacher2-phone-col{width:min(420px,100%);display:flex;flex-direction:column;align-items:center;gap:12px}.teacher2-phone-label{color:#4e6180;font-size:12px;font-weight:900;letter-spacing:1.2px;text-transform:uppercase}.teacher2-phone-frame{position:relative;width:390px;max-width:100%;padding:11px;border-radius:48px;background:linear-gradient(145deg,#1c1c2e,#0f0f1e);box-shadow:0 0 0 1px #ffffff0f,0 32px 80px #0000008c,inset 0 1px #ffffff14}.teacher2-phone-pill{position:absolute;top:14px;left:50%;z-index:5;width:90px;height:22px;display:flex;align-items:center;justify-content:center;gap:6px;border-radius:0 0 18px 18px;background:linear-gradient(145deg,#1c1c2e,#0f0f1e);transform:translate(-50%)}.teacher2-phone-pill span{width:8px;height:8px;border:2px solid #1a1a2e;border-radius:50%;background:#0a0a12}.teacher2-phone-pill i{width:4px;height:4px;border-radius:50%;background:#1a1a2e}.teacher2-phone-screen{position:relative;height:min(760px,calc(100vh - 148px));min-height:660px;display:flex;flex-direction:column;overflow:hidden;border-radius:38px;background:#f4f6fa}.teacher2-status,.teacher2-appbar{flex:0 0 auto;display:flex;align-items:center;background:#fff;color:#111827}.teacher2-status{height:44px;align-items:flex-end;justify-content:space-between;padding:0 20px 8px;font-size:12px;font-weight:800}.teacher2-status span:first-child{font-size:15px}.teacher2-appbar{height:52px;gap:10px;padding:0 16px;border-bottom:1px solid #e4e7ed}.teacher2-appbar strong{flex:1;font-size:20px}.teacher2-appbar em{border-radius:4px;background:#eff6ff;color:#3b82f6;padding:3px 8px;font-size:12px;font-style:normal;font-weight:800}.teacher2-back-mark{color:#3b82f6;font-size:26px;line-height:1}.teacher2-scroll{flex:1;overflow-y:auto;padding-bottom:14px}.teacher2-scroll::-webkit-scrollbar{width:0}.teacher2-photo{position:relative;min-height:210px;display:flex;align-items:center;justify-content:center;overflow:hidden;border:0;background:linear-gradient(135deg,#c8d0dc,#b8c2ce);color:#6b7280}.teacher2-photo img{display:block;width:100%;height:auto;max-height:290px;object-fit:contain;cursor:zoom-in}.teacher2-photo-loading{position:absolute;top:0;right:0;bottom:0;left:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;background:#0000007a;color:#fff}.teacher2-ring{width:34px;height:34px;border:3px solid rgba(255,255,255,.35);border-top-color:#fff;border-radius:50%;animation:spin .85s linear infinite}.teacher2-card{margin:10px 10px 0;overflow:hidden;border:1px solid #e4e7ed;border-radius:12px;background:#fff;color:#111827}.teacher2-card-head{display:flex;align-items:center;gap:8px;padding:12px 14px}.teacher2-card-head span{color:#3b82f6;font-size:12px;font-weight:900;letter-spacing:.3px}.teacher2-card-head strong{margin-left:auto;border:1px solid #bbf7d0;border-radius:20px;background:#dcfce7;color:#16a34a;padding:3px 10px;font-size:11px}.teacher2-card-head strong.is-pending{border-color:#bfdbfe;background:#eff6ff;color:#2563eb}.teacher2-question-text,.teacher2-fallback,.teacher2-answer-card{color:#374151;font-size:14px;line-height:1.75}.teacher2-question-text{padding:0 14px 14px}.teacher2-reference-image,.teacher2-visual-card img{display:block;width:calc(100% - 20px);margin:0 10px 10px;border-radius:9px;cursor:zoom-in}.teacher2-muted{margin:0;padding:0 14px 14px;color:#6b7280;font-size:13px;line-height:1.7}.teacher2-subject-row{display:flex;align-items:center;gap:8px;padding:10px}.teacher2-subject-row span,.teacher2-subject-row small{border-radius:20px;padding:5px 11px;font-weight:800}.teacher2-subject-row span{background:#eff6ff;color:#2563eb}.teacher2-subject-row small{background:#f3f4f6;color:#6b7280}.teacher2-tabs{display:flex;margin:0 10px 10px;overflow-x:auto;border:1px solid #e4e7ed;border-radius:10px;background:#fff}.teacher2-tabs button{flex:1;min-width:96px;border:0;border-bottom:2px solid transparent;background:transparent;color:#6b7280;padding:10px 14px;font-weight:800;cursor:pointer}.teacher2-tabs button.is-active{border-bottom-color:#3b82f6;color:#2563eb}.teacher2-error{margin:0 10px 10px;border:1px solid #fecaca;border-radius:10px;background:#fef2f2;color:#b91c1c;padding:10px 12px;font-size:13px;font-weight:700}.teacher2-diag-group{position:relative;display:flex;flex-direction:column;gap:10px;padding:0 10px 10px}.teacher2-diag-group:before{content:"";position:absolute;top:24px;bottom:24px;left:28px;width:1px;background:#e4e7ed}.teacher2-diag-card{position:relative;overflow:hidden;border:1px solid #eef2f7;border-radius:14px;background:#fff;box-shadow:0 8px 20px #0f172a09}.teacher2-diag-card.is-active{border-color:#73a2ff;box-shadow:0 10px 24px #3b82f61f}.teacher2-diag-card.is-done{border-color:#bbf7d0}.teacher2-diag-head{display:grid;grid-template-columns:auto 1fr auto;gap:10px;align-items:center;padding:14px 16px 8px}.teacher2-diag-head span{z-index:1;width:24px;height:24px;display:grid;place-items:center;border-radius:50%;background:#4b82f6;color:#fff;font-size:12px;font-weight:900}.teacher2-diag-card.is-done .teacher2-diag-head span{background:#dcfce7;color:#16a34a}.teacher2-diag-head strong{color:#111827;font-size:16px}.teacher2-diag-head em{color:#16a34a;font-size:11px;font-style:normal;font-weight:900}.teacher2-diag-body{padding:2px 16px 12px 52px;color:#4b5563;font-size:14px;line-height:1.78}.teacher2-diag-body .thinking-node{border:0;background:transparent;padding:0;box-shadow:none}.teacher2-diag-body .thinking-node-title{display:none}.teacher2-diag-body .thinking-node-meta{margin-bottom:8px}.teacher2-diag-actions{display:flex;justify-content:flex-end;gap:10px;margin:0 16px 12px 52px;padding-top:10px;border-top:1px dashed #e5e7eb}.teacher2-diag-actions button{border:0;background:transparent;color:#6b7280;font-weight:900;cursor:pointer}.teacher2-diag-actions button:last-child{color:#2563eb}.teacher2-visual-card{margin:0}.teacher2-visual-wait{display:flex;align-items:center;gap:12px;border:1px dashed #bfdbfe;border-radius:10px;background:#f8faff;color:#6b7280;padding:16px;font-size:12px;font-weight:700}.teacher2-visual-wait .teacher2-ring{width:20px;height:20px;border-color:#dbeafe;border-top-color:#3b82f6}.teacher2-skeleton-blocks{display:grid;gap:8px;padding:0 10px 10px}.teacher2-skeleton-card{border:1px solid #e4e7ed;border-radius:10px;background:#fff;padding:12px 14px}.teacher2-skeleton-head{display:flex;align-items:center;gap:9px;margin-bottom:10px}.teacher2-skeleton-num,.teacher2-skeleton-title,.teacher2-skeleton-line{display:block;border-radius:999px;background:linear-gradient(90deg,#f3f4f6 25%,#e8eaed,#f3f4f6 75%);background-size:200% 100%;animation:skw 1.5s infinite}.teacher2-skeleton-num{width:20px;height:20px}.teacher2-skeleton-title{width:55%;height:11px}.teacher2-skeleton-line{width:74%;height:9px;margin:6px 0}.teacher2-skeleton-line.is-wide{width:92%}.teacher2-skeleton-line.is-short{width:52%}.teacher2-answer-card,.teacher2-similar-card{padding-bottom:12px}.teacher2-similar-section{display:grid;gap:8px;padding:0 12px 12px}.teacher2-similar-section>strong{color:#111827;font-size:13px}.teacher2-similar-item{border:1px solid #e4e7ed;border-radius:10px;background:#f8fafc;color:#374151;padding:10px 12px;font-size:13px;line-height:1.65}.teacher2-similar-item details{margin-top:8px}.teacher2-similar-item summary{color:#2563eb;font-size:12px;font-weight:900;cursor:pointer}.teacher2-followups{display:flex;flex-wrap:wrap;gap:8px}.teacher2-followups span{border:1px solid #bfdbfe;border-radius:999px;background:#eff6ff;color:#2563eb;padding:6px 10px;font-size:12px;font-weight:800}.teacher2-chatbar{flex:0 0 auto;display:flex;gap:8px;padding:10px;border-top:1px solid #e4e7ed;background:#fff}.teacher2-chatbar input{min-width:0;flex:1;border:1px solid #e5e7eb;border-radius:999px;background:#f8fafc;padding:10px 14px;font-size:14px}.teacher2-chatbar button{width:38px;height:38px;border:0;border-radius:50%;background:#3b82f6;color:#fff;font-weight:900}.teacher2-action-modal{position:absolute;top:0;right:0;bottom:0;left:0;z-index:10;display:grid;place-items:center;padding:20px;background:#11182761}.teacher2-action-dialog{width:min(300px,100%);display:grid;gap:12px;border-radius:16px;background:#fff;color:#111827;padding:18px;box-shadow:0 18px 60px #0f172a3d}.teacher2-action-title{font-size:17px;font-weight:900}.teacher2-action-desc{color:#6b7280;font-size:13px}.teacher2-action-options{display:grid;grid-template-columns:1fr 1fr;gap:10px}.teacher2-action-button{border:1px solid #bfdbfe;border-radius:10px;background:#eff6ff;color:#2563eb;padding:11px 12px;font-weight:900}.teacher2-phase-strip{width:100%;display:flex;align-items:center;gap:8px;overflow-x:auto;padding:12px 14px;border:1px solid #1e2d45;border-radius:12px;background:#111827}.teacher2-phase-step{display:flex;align-items:center;gap:6px;white-space:nowrap;color:#4e6180;font-size:12px;font-weight:800}.teacher2-phase-dot{width:7px;height:7px;border-radius:50%;background:#1e2d45}.teacher2-phase-step.is-done{color:#8aa0be}.teacher2-phase-step.is-done .teacher2-phase-dot{background:#34d399}.teacher2-phase-step.is-active{color:#4b8cf5}.teacher2-phase-step.is-active .teacher2-phase-dot{background:#4b8cf5;animation:pul 1.4s infinite}.teacher2-timeline-panel{width:clamp(820px,calc(100vw - 500px),1180px);min-width:680px;max-height:calc(100vh - 96px);display:flex;flex-direction:column;overflow:hidden;border:1px solid #1e2d45;border-radius:16px;background:#0d1117;color:#cbd5e1;box-shadow:0 24px 70px #00000059}.teacher2-timeline-head{flex:0 0 auto;height:58px;display:flex;align-items:center;justify-content:space-between;gap:14px;padding:0 18px;border-bottom:1px solid #1e2d45;background:#161b22}.teacher2-timeline-head div{display:grid;gap:4px}.teacher2-timeline-kicker{color:#64748b;font-size:10px;font-weight:900;letter-spacing:1.4px;text-transform:uppercase}.teacher2-timeline-head strong{color:#f8fafc;font-size:16px}.teacher2-timeline-head em{border:1px solid #334155;border-radius:999px;background:#0d1117;color:#93c5fd;padding:6px 10px;font-size:12px;font-style:normal;font-weight:900}.teacher2-timeline-empty{margin:18px;border:1px dashed #26364f;border-radius:12px;background:#111827;color:#64748b;padding:22px;text-align:center;font-weight:800}.teacher2-timeline-workspace{flex:1;min-height:0;display:grid;grid-template-columns:1fr 0;transition:grid-template-columns .22s ease}.teacher2-timeline-workspace.has-detail{grid-template-columns:minmax(0,1fr) 340px}.teacher2-timeline-chart{min-width:0;overflow:hidden auto;scrollbar-gutter:stable}.teacher2-timeline-axis,.teacher2-timeline-row{min-width:0;width:100%;display:grid;grid-template-columns:400px minmax(0,1fr)}.teacher2-timeline-axis{position:sticky;top:0;z-index:2;height:38px;border-bottom:1px solid #1e2d45;background:#0d1117}.teacher2-timeline-axis-label{display:flex;align-items:center;border-right:1px solid #1e2d45;background:#161b22;color:#64748b;padding:0 14px;font-size:12px;font-weight:900}.teacher2-timeline-scale,.teacher2-timeline-lane{position:relative}.teacher2-timeline-scale span{position:absolute;bottom:6px;color:#64748b;font-size:10px;transform:translate(4px)}.teacher2-timeline-row{width:100%;height:28px;border:0;border-bottom:1px solid rgba(30,45,69,.7);background:transparent;color:inherit;padding:0;text-align:left;cursor:pointer}.teacher2-timeline-row:hover,.teacher2-timeline-row.is-selected{background:#1e293b8c}.teacher2-timeline-row.is-parallel .teacher2-timeline-task{box-shadow:none}.teacher2-timeline-task{display:flex;align-items:center;gap:8px;min-width:0;border-right:1px solid #1e2d45;background:#0d1117;padding:0 14px}.teacher2-timeline-row:hover .teacher2-timeline-task,.teacher2-timeline-row.is-selected .teacher2-timeline-task{background:#161b22}.teacher2-timeline-task i{width:18px;height:18px;flex:0 0 auto;display:grid;place-items:center;border-radius:5px;background:#64748b}.teacher2-timeline-task i:before{content:"";width:5px;height:5px;border-radius:50%;background:#fff}.teacher2-timeline-task span{min-width:0;display:flex;align-items:baseline;gap:5px;overflow:hidden}.teacher2-timeline-task strong{color:#e5edf8;font-size:12px;font-weight:900;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;flex-shrink:1;min-width:0}.teacher2-timeline-task small{color:#64748b;font-size:10px;font-weight:800;white-space:nowrap;flex-shrink:1;min-width:0;overflow:hidden;text-overflow:ellipsis;max-width:240px}.teacher2-timeline-lane>i{position:absolute;top:0;bottom:0;border-left:1px solid rgba(30,45,69,.55);pointer-events:none}.teacher2-timeline-bar{position:absolute;top:7px;bottom:5px;min-width:5px;display:flex;align-items:center;overflow:visible;border:1px solid rgba(255,255,255,.2);border-radius:4px;padding:0 8px;opacity:.9;pointer-events:none}.teacher2-timeline-bar em{margin-left:auto;padding:1px 5px;border-radius:4px;background:#0f172adb;color:#ffffffeb;font-size:10px;font-style:normal;font-weight:900;white-space:nowrap;flex-shrink:0}.teacher2-timeline-row.is-system .teacher2-timeline-task i,.teacher2-timeline-row.is-system .teacher2-timeline-bar{background:#64748b}.teacher2-timeline-row.is-network .teacher2-timeline-task i,.teacher2-timeline-row.is-network .teacher2-timeline-bar{background:#3b82f6}.teacher2-timeline-row.is-ai .teacher2-timeline-task i,.teacher2-timeline-row.is-ai .teacher2-timeline-bar{background:#8b5cf6}.teacher2-timeline-row.is-db .teacher2-timeline-task i,.teacher2-timeline-row.is-db .teacher2-timeline-bar{background:#10b981}.teacher2-timeline-row.is-stream .teacher2-timeline-task i,.teacher2-timeline-row.is-stream .teacher2-timeline-bar{background:#f59e0b}.teacher2-timeline-row.is-parallel-1 .teacher2-timeline-task small{color:#22d3ee}.teacher2-timeline-row.is-parallel-1 .teacher2-timeline-task i,.teacher2-timeline-row.is-parallel-1 .teacher2-timeline-bar{background:#0891b2}.teacher2-timeline-row.is-parallel-2 .teacher2-timeline-task small{color:#fbbf24}.teacher2-timeline-row.is-parallel-2 .teacher2-timeline-task i,.teacher2-timeline-row.is-parallel-2 .teacher2-timeline-bar{background:#d97706}.teacher2-timeline-row.is-parallel-3 .teacher2-timeline-task small{color:#fb7185}.teacher2-timeline-row.is-parallel-3 .teacher2-timeline-task i,.teacher2-timeline-row.is-parallel-3 .teacher2-timeline-bar{background:#e11d48}.teacher2-timeline-row.is-parallel-4 .teacher2-timeline-task small{color:#34d399}.teacher2-timeline-row.is-parallel-4 .teacher2-timeline-task i,.teacher2-timeline-row.is-parallel-4 .teacher2-timeline-bar{background:#059669}.teacher2-timeline-row.is-selected .teacher2-timeline-bar{box-shadow:0 0 0 2px #ffffffb8;opacity:1}.teacher2-timeline-row.is-skipped{opacity:.45}.teacher2-timeline-row.is-skipped .teacher2-timeline-bar{border-style:dashed;background:transparent!important}.teacher2-timeline-detail{min-width:0;overflow:hidden auto;border-top:0;border-left:1px solid #1e2d45;background:#161b22;animation:fade-in .16s ease-out}.teacher2-timeline-detail-head{display:flex;align-items:flex-start;justify-content:space-between;gap:12px;padding:14px 18px;border-bottom:1px solid #253551}.teacher2-timeline-detail-head div{min-width:0;display:grid;gap:4px}.teacher2-timeline-detail-head span{color:#94a3b8;font-size:11px;font-weight:900}.teacher2-timeline-detail-head strong{color:#f8fafc;font-size:14px;line-height:1.35}.teacher2-timeline-detail-head button{width:28px;height:28px;flex:0 0 auto;border:1px solid #334155;border-radius:8px;background:#0d1117;color:#94a3b8;font-size:18px;cursor:pointer}.teacher2-timeline-detail-body{display:grid;grid-template-columns:1fr;gap:14px;padding:14px 18px 18px}.teacher2-timeline-stats{display:grid;grid-template-columns:1fr 1fr;gap:10px}.teacher2-timeline-stats span{display:grid;gap:4px;border:1px solid #253551;border-radius:8px;background:#0d1117;padding:10px}.teacher2-timeline-stats small{color:#64748b;font-size:10px;font-weight:900}.teacher2-timeline-stats strong{color:#e2e8f0;font-size:12px;font-weight:900}.teacher2-timeline-stats .is-running strong{color:#fbbf24}.teacher2-timeline-stats .is-success strong{color:#34d399}.teacher2-timeline-detail pre{max-height:480px;margin:0;overflow:auto;border:1px solid #253551;border-radius:10px;background:#0d1117;color:#86efac;padding:14px;font-size:11px;line-height:1.55}.teacher2-timeline-footer{flex:0 0 auto;display:flex;align-items:center;gap:8px;padding:12px 16px;border-top:1px solid #1e2d45;background:#101722;color:#64748b;font-size:12px;font-weight:800}.teacher2-timeline-footer span{width:8px;height:8px;border-radius:50%;background:#64748b}.teacher2-timeline-footer.is-starting span,.teacher2-timeline-footer.is-streaming span,.teacher2-timeline-footer.is-waiting_action span{background:#3b82f6;animation:pul 1.4s infinite}.teacher2-timeline-footer.is-done span{background:#34d399}.teacher2-timeline-footer.is-error span{background:#ef4444}.teacher2-upload-shell{display:flex;flex-direction:column}.teacher2-upload-shell.is-dragging .teacher2-phone-frame{box-shadow:0 0 0 2px #4b8cf5b3,0 32px 80px #0000008c}.teacher2-upload-photo{width:100%;cursor:pointer}.teacher2-upload-empty{display:grid;justify-items:center;gap:8px;padding:24px;text-align:center}.teacher2-upload-empty .upload-icon{width:34px;height:34px}.teacher2-upload-empty strong{color:#374151}.teacher2-upload-empty span{color:#6b7280;font-size:12px}.teacher2-upload-body{flex:1;overflow-y:auto;padding-bottom:12px}.teacher2-upload-list{display:grid;gap:8px;padding:0 10px 10px}.teacher2-upload-thumb{position:relative;display:grid;grid-template-columns:52px 1fr auto;align-items:center;gap:10px;border:1px solid #e5e7eb;border-radius:10px;background:#f8fafc;padding:8px 34px 8px 8px;text-align:left;cursor:pointer}.teacher2-upload-thumb img{width:52px;height:52px;object-fit:cover;border-radius:8px}.teacher2-upload-thumb span{min-width:0;overflow:hidden;color:#111827;font-size:12px;font-weight:800;text-overflow:ellipsis;white-space:nowrap}.teacher2-upload-thumb i{color:#6b7280;font-size:11px;font-style:normal}.teacher2-upload-thumb em{position:absolute;right:8px;top:50%;width:22px;height:22px;display:grid;place-items:center;border-radius:50%;background:#fee2e2;color:#b91c1c;font-style:normal;font-weight:900;transform:translateY(-50%)}.teacher2-upload-actions{display:grid;grid-template-columns:1fr 1.2fr;gap:8px;padding:10px}.teacher2-upload-actions button:nth-child(2){border-color:#4b8cf5;background:#4b8cf5;color:#fff}.teacher2-upload-actions button:nth-child(3){grid-column:1 / -1}@keyframes skw{0%{background-position:200% 0}to{background-position:-200% 0}}@keyframes pul{0%,to{opacity:1;transform:scale(1)}50%{opacity:.55;transform:scale(.74)}}@keyframes float-in{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}@keyframes fade-in{0%{opacity:0}to{opacity:1}}@media(max-width:640px){.business-nav,.business-hero,.business-section,.business-footer{width:min(100% - 28px,1180px)}.business-hero{min-height:auto;padding:36px 0 42px}.business-hero-content{width:100%}.business-hero h1{font-size:clamp(3.4rem,18vw,5.2rem)}.business-lead{font-size:16px}.business-footer{align-items:stretch;flex-direction:column}.business-capability-grid{grid-template-columns:1fr}.business-capability-grid article{min-height:auto}.page-shell{padding:28px 16px}.page-shell.has-workspace{grid-template-columns:1fr;gap:18px}.upload-card{min-height:300px;border-radius:24px;padding:24px 16px 20px}h2{font-size:20px}.preview-grid{grid-template-columns:repeat(auto-fit,minmax(120px,1fr))}.workspace-panel{padding-top:0}.workspace-card{min-height:auto;border-radius:24px;padding:20px}.workspace-header{align-items:flex-start;flex-direction:column}.assistant-summary-grid{grid-template-columns:1fr}.assistant-panel-head{flex-direction:column}}@media(max-width:980px){.business-capability-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.business-hero-content{width:min(620px,100%)}.page-shell.has-workspace{grid-template-columns:1fr;gap:18px}.workspace-panel{padding-top:0}.teacher2-stage{flex-direction:column;align-items:center}.teacher2-timeline-panel{width:min(100%,760px);min-width:0;max-height:none}.teacher2-timeline-workspace,.teacher2-timeline-workspace.has-detail{grid-template-columns:1fr}.teacher2-timeline-detail{border-top:1px solid #1e2d45;border-left:0}.teacher2-timeline-stats{grid-template-columns:repeat(2,minmax(0,1fr))}}@media(max-width:1240px){.teacher2-stage{flex-direction:column;align-items:center}.teacher2-timeline-panel{width:min(100%,920px);min-width:0;max-height:none}}@media(max-width:640px){.business-capability-grid{grid-template-columns:1fr}.teacher2-stage{padding-right:12px;padding-left:12px}.teacher2-timeline-axis,.teacher2-timeline-row{grid-template-columns:180px 1fr}}
