@font-face{font-display:block;font-family:KaTeX_AMS;font-style:normal;font-weight:400;src:url(/assets/KaTeX_AMS-Regular-BQhdFMY1.woff2) format("woff2"),url(/assets/KaTeX_AMS-Regular-DMm9YOAa.woff) format("woff"),url(/assets/KaTeX_AMS-Regular-DRggAlZN.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Caligraphic;font-style:normal;font-weight:700;src:url(/assets/KaTeX_Caligraphic-Bold-Dq_IR9rO.woff2) format("woff2"),url(/assets/KaTeX_Caligraphic-Bold-BEiXGLvX.woff) format("woff"),url(/assets/KaTeX_Caligraphic-Bold-ATXxdsX0.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Caligraphic;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Caligraphic-Regular-Di6jR-x-.woff2) format("woff2"),url(/assets/KaTeX_Caligraphic-Regular-CTRA-rTL.woff) format("woff"),url(/assets/KaTeX_Caligraphic-Regular-wX97UBjC.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Fraktur;font-style:normal;font-weight:700;src:url(/assets/KaTeX_Fraktur-Bold-CL6g_b3V.woff2) format("woff2"),url(/assets/KaTeX_Fraktur-Bold-BsDP51OF.woff) format("woff"),url(/assets/KaTeX_Fraktur-Bold-BdnERNNW.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Fraktur;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Fraktur-Regular-CTYiF6lA.woff2) format("woff2"),url(/assets/KaTeX_Fraktur-Regular-Dxdc4cR9.woff) format("woff"),url(/assets/KaTeX_Fraktur-Regular-CB_wures.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:normal;font-weight:700;src:url(/assets/KaTeX_Main-Bold-Cx986IdX.woff2) format("woff2"),url(/assets/KaTeX_Main-Bold-Jm3AIy58.woff) format("woff"),url(/assets/KaTeX_Main-Bold-waoOVXN0.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:italic;font-weight:700;src:url(/assets/KaTeX_Main-BoldItalic-DxDJ3AOS.woff2) format("woff2"),url(/assets/KaTeX_Main-BoldItalic-SpSLRI95.woff) format("woff"),url(/assets/KaTeX_Main-BoldItalic-DzxPMmG6.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:italic;font-weight:400;src:url(/assets/KaTeX_Main-Italic-NWA7e6Wa.woff2) format("woff2"),url(/assets/KaTeX_Main-Italic-BMLOBm91.woff) format("woff"),url(/assets/KaTeX_Main-Italic-3WenGoN9.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Main-Regular-B22Nviop.woff2) format("woff2"),url(/assets/KaTeX_Main-Regular-Dr94JaBh.woff) format("woff"),url(/assets/KaTeX_Main-Regular-ypZvNtVU.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Math;font-style:italic;font-weight:700;src:url(/assets/KaTeX_Math-BoldItalic-CZnvNsCZ.woff2) format("woff2"),url(/assets/KaTeX_Math-BoldItalic-iY-2wyZ7.woff) format("woff"),url(/assets/KaTeX_Math-BoldItalic-B3XSjfu4.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Math;font-style:italic;font-weight:400;src:url(/assets/KaTeX_Math-Italic-t53AETM-.woff2) format("woff2"),url(/assets/KaTeX_Math-Italic-DA0__PXp.woff) format("woff"),url(/assets/KaTeX_Math-Italic-flOr_0UB.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_SansSerif;font-style:normal;font-weight:700;src:url(/assets/KaTeX_SansSerif-Bold-D1sUS0GD.woff2) format("woff2"),url(/assets/KaTeX_SansSerif-Bold-DbIhKOiC.woff) format("woff"),url(/assets/KaTeX_SansSerif-Bold-CFMepnvq.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_SansSerif;font-style:italic;font-weight:400;src:url(/assets/KaTeX_SansSerif-Italic-C3H0VqGB.woff2) format("woff2"),url(/assets/KaTeX_SansSerif-Italic-DN2j7dab.woff) format("woff"),url(/assets/KaTeX_SansSerif-Italic-YYjJ1zSn.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_SansSerif;font-style:normal;font-weight:400;src:url(/assets/KaTeX_SansSerif-Regular-DDBCnlJ7.woff2) format("woff2"),url(/assets/KaTeX_SansSerif-Regular-CS6fqUqJ.woff) format("woff"),url(/assets/KaTeX_SansSerif-Regular-BNo7hRIc.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Script;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Script-Regular-D3wIWfF6.woff2) format("woff2"),url(/assets/KaTeX_Script-Regular-D5yQViql.woff) format("woff"),url(/assets/KaTeX_Script-Regular-C5JkGWo-.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size1;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Size1-Regular-mCD8mA8B.woff2) format("woff2"),url(/assets/KaTeX_Size1-Regular-C195tn64.woff) format("woff"),url(/assets/KaTeX_Size1-Regular-Dbsnue_I.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size2;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Size2-Regular-Dy4dx90m.woff2) format("woff2"),url(/assets/KaTeX_Size2-Regular-oD1tc_U0.woff) format("woff"),url(/assets/KaTeX_Size2-Regular-B7gKUWhC.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size3;font-style:normal;font-weight:400;src:url(data:font/woff2;base64,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) format("woff2"),url(/assets/KaTeX_Size3-Regular-CTq5MqoE.woff) format("woff"),url(/assets/KaTeX_Size3-Regular-DgpXs0kz.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size4;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Size4-Regular-Dl5lxZxV.woff2) format("woff2"),url(/assets/KaTeX_Size4-Regular-BF-4gkZK.woff) format("woff"),url(/assets/KaTeX_Size4-Regular-DWFBv043.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Typewriter;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Typewriter-Regular-CO6r4hn1.woff2) format("woff2"),url(/assets/KaTeX_Typewriter-Regular-C0xS9mPB.woff) format("woff"),url(/assets/KaTeX_Typewriter-Regular-D3Ib7_Hf.ttf) format("truetype")}.katex{font: 1.21em KaTeX_Main,Times New Roman,serif;line-height:1.2;position:relative;text-indent:0;text-rendering:auto}.katex *{-ms-high-contrast-adjust:none!important;border-color:currentColor}.katex .katex-version:after{content:"0.16.47"}.katex .katex-mathml{border:0;-webkit-clip-path:inset(50%);clip-path:inset(50%);height:1px;overflow:hidden;padding:0;position:absolute;width:1px}.katex .katex-html>.newline{display:block}.katex .base{position:relative;white-space:nowrap;width:-webkit-min-content;width:-moz-min-content;width:min-content}.katex .base,.katex .strut{display:inline-block}.katex .textbf{font-weight:700}.katex .textit{font-style:italic}.katex .textrm{font-family:KaTeX_Main}.katex .textsf{font-family:KaTeX_SansSerif}.katex .texttt{font-family:KaTeX_Typewriter}.katex .mathnormal{font-family:KaTeX_Math;font-style:italic}.katex .mathit{font-family:KaTeX_Main;font-style:italic}.katex .mathrm{font-style:normal}.katex .mathbf{font-family:KaTeX_Main;font-weight:700}.katex .boldsymbol{font-family:KaTeX_Math;font-style:italic;font-weight:700}.katex .amsrm,.katex .mathbb,.katex .textbb{font-family:KaTeX_AMS}.katex .mathcal{font-family:KaTeX_Caligraphic}.katex .mathfrak,.katex .textfrak{font-family:KaTeX_Fraktur}.katex .mathboldfrak,.katex .textboldfrak{font-family:KaTeX_Fraktur;font-weight:700}.katex .mathtt{font-family:KaTeX_Typewriter}.katex .mathscr,.katex .textscr{font-family:KaTeX_Script}.katex .mathsf,.katex .textsf{font-family:KaTeX_SansSerif}.katex .mathboldsf,.katex .textboldsf{font-family:KaTeX_SansSerif;font-weight:700}.katex .mathitsf,.katex .mathsfit,.katex .textitsf{font-family:KaTeX_SansSerif;font-style:italic}.katex .mainrm{font-family:KaTeX_Main;font-style:normal}.katex .vlist-t{border-collapse:collapse;display:inline-table;table-layout:fixed}.katex .vlist-r{display:table-row}.katex .vlist{display:table-cell;position:relative;vertical-align:bottom}.katex .vlist>span{display:block;height:0;position:relative}.katex .vlist>span>span{display:inline-block}.katex .vlist>span>.pstrut{overflow:hidden;width:0}.katex .vlist-t2{margin-right:-2px}.katex .vlist-s{display:table-cell;font-size:1px;min-width:2px;vertical-align:bottom;width:2px}.katex .vbox{align-items:baseline;display:inline-flex;flex-direction:column}.katex .hbox{width:100%}.katex .hbox,.katex .thinbox{display:inline-flex;flex-direction:row}.katex .thinbox{max-width:0;width:0}.katex .msupsub{text-align:left}.katex .mfrac>span>span{text-align:center}.katex .mfrac .frac-line{border-bottom-style:solid;display:inline-block;width:100%}.katex .hdashline,.katex .hline,.katex .mfrac .frac-line,.katex .overline .overline-line,.katex .rule,.katex .underline .underline-line{min-height:1px}.katex .mspace{display:inline-block}.katex .smash{display:inline;line-height:0}.katex .clap,.katex .llap,.katex .rlap{position:relative;width:0}.katex .clap>.inner,.katex .llap>.inner,.katex .rlap>.inner{position:absolute}.katex .clap>.fix,.katex .llap>.fix,.katex .rlap>.fix{display:inline-block}.katex .llap>.inner{right:0}.katex .clap>.inner,.katex .rlap>.inner{left:0}.katex .clap>.inner>span{margin-left:-50%;margin-right:50%}.katex .rule{border:0 solid;display:inline-block;position:relative}.katex .hline,.katex .overline .overline-line,.katex .underline .underline-line{border-bottom-style:solid;display:inline-block;width:100%}.katex .hdashline{border-bottom-style:dashed;display:inline-block;width:100%}.katex .sqrt>.root{margin-left:.2777777778em;margin-right:-.5555555556em}.katex .fontsize-ensurer.reset-size1.size1,.katex .sizing.reset-size1.size1{font-size:1em}.katex .fontsize-ensurer.reset-size1.size2,.katex .sizing.reset-size1.size2{font-size:1.2em}.katex .fontsize-ensurer.reset-size1.size3,.katex .sizing.reset-size1.size3{font-size:1.4em}.katex .fontsize-ensurer.reset-size1.size4,.katex .sizing.reset-size1.size4{font-size:1.6em}.katex .fontsize-ensurer.reset-size1.size5,.katex .sizing.reset-size1.size5{font-size:1.8em}.katex .fontsize-ensurer.reset-size1.size6,.katex .sizing.reset-size1.size6{font-size:2em}.katex .fontsize-ensurer.reset-size1.size7,.katex .sizing.reset-size1.size7{font-size:2.4em}.katex .fontsize-ensurer.reset-size1.size8,.katex .sizing.reset-size1.size8{font-size:2.88em}.katex .fontsize-ensurer.reset-size1.size9,.katex .sizing.reset-size1.size9{font-size:3.456em}.katex .fontsize-ensurer.reset-size1.size10,.katex .sizing.reset-size1.size10{font-size:4.148em}.katex .fontsize-ensurer.reset-size1.size11,.katex .sizing.reset-size1.size11{font-size:4.976em}.katex .fontsize-ensurer.reset-size2.size1,.katex .sizing.reset-size2.size1{font-size:.8333333333em}.katex .fontsize-ensurer.reset-size2.size2,.katex .sizing.reset-size2.size2{font-size:1em}.katex .fontsize-ensurer.reset-size2.size3,.katex .sizing.reset-size2.size3{font-size:1.1666666667em}.katex .fontsize-ensurer.reset-size2.size4,.katex .sizing.reset-size2.size4{font-size:1.3333333333em}.katex .fontsize-ensurer.reset-size2.size5,.katex .sizing.reset-size2.size5{font-size:1.5em}.katex .fontsize-ensurer.reset-size2.size6,.katex .sizing.reset-size2.size6{font-size:1.6666666667em}.katex .fontsize-ensurer.reset-size2.size7,.katex .sizing.reset-size2.size7{font-size:2em}.katex .fontsize-ensurer.reset-size2.size8,.katex .sizing.reset-size2.size8{font-size:2.4em}.katex .fontsize-ensurer.reset-size2.size9,.katex .sizing.reset-size2.size9{font-size:2.88em}.katex .fontsize-ensurer.reset-size2.size10,.katex .sizing.reset-size2.size10{font-size:3.4566666667em}.katex .fontsize-ensurer.reset-size2.size11,.katex .sizing.reset-size2.size11{font-size:4.1466666667em}.katex .fontsize-ensurer.reset-size3.size1,.katex .sizing.reset-size3.size1{font-size:.7142857143em}.katex .fontsize-ensurer.reset-size3.size2,.katex .sizing.reset-size3.size2{font-size:.8571428571em}.katex .fontsize-ensurer.reset-size3.size3,.katex .sizing.reset-size3.size3{font-size:1em}.katex .fontsize-ensurer.reset-size3.size4,.katex .sizing.reset-size3.size4{font-size:1.1428571429em}.katex .fontsize-ensurer.reset-size3.size5,.katex .sizing.reset-size3.size5{font-size:1.2857142857em}.katex .fontsize-ensurer.reset-size3.size6,.katex .sizing.reset-size3.size6{font-size:1.4285714286em}.katex .fontsize-ensurer.reset-size3.size7,.katex .sizing.reset-size3.size7{font-size:1.7142857143em}.katex .fontsize-ensurer.reset-size3.size8,.katex .sizing.reset-size3.size8{font-size:2.0571428571em}.katex .fontsize-ensurer.reset-size3.size9,.katex .sizing.reset-size3.size9{font-size:2.4685714286em}.katex .fontsize-ensurer.reset-size3.size10,.katex .sizing.reset-size3.size10{font-size:2.9628571429em}.katex .fontsize-ensurer.reset-size3.size11,.katex .sizing.reset-size3.size11{font-size:3.5542857143em}.katex .fontsize-ensurer.reset-size4.size1,.katex .sizing.reset-size4.size1{font-size:.625em}.katex .fontsize-ensurer.reset-size4.size2,.katex .sizing.reset-size4.size2{font-size:.75em}.katex .fontsize-ensurer.reset-size4.size3,.katex .sizing.reset-size4.size3{font-size:.875em}.katex .fontsize-ensurer.reset-size4.size4,.katex .sizing.reset-size4.size4{font-size:1em}.katex .fontsize-ensurer.reset-size4.size5,.katex .sizing.reset-size4.size5{font-size:1.125em}.katex .fontsize-ensurer.reset-size4.size6,.katex .sizing.reset-size4.size6{font-size:1.25em}.katex .fontsize-ensurer.reset-size4.size7,.katex .sizing.reset-size4.size7{font-size:1.5em}.katex .fontsize-ensurer.reset-size4.size8,.katex .sizing.reset-size4.size8{font-size:1.8em}.katex .fontsize-ensurer.reset-size4.size9,.katex .sizing.reset-size4.size9{font-size:2.16em}.katex .fontsize-ensurer.reset-size4.size10,.katex .sizing.reset-size4.size10{font-size:2.5925em}.katex .fontsize-ensurer.reset-size4.size11,.katex .sizing.reset-size4.size11{font-size:3.11em}.katex .fontsize-ensurer.reset-size5.size1,.katex .sizing.reset-size5.size1{font-size:.5555555556em}.katex .fontsize-ensurer.reset-size5.size2,.katex .sizing.reset-size5.size2{font-size:.6666666667em}.katex .fontsize-ensurer.reset-size5.size3,.katex .sizing.reset-size5.size3{font-size:.7777777778em}.katex .fontsize-ensurer.reset-size5.size4,.katex .sizing.reset-size5.size4{font-size:.8888888889em}.katex .fontsize-ensurer.reset-size5.size5,.katex .sizing.reset-size5.size5{font-size:1em}.katex .fontsize-ensurer.reset-size5.size6,.katex .sizing.reset-size5.size6{font-size:1.1111111111em}.katex .fontsize-ensurer.reset-size5.size7,.katex .sizing.reset-size5.size7{font-size:1.3333333333em}.katex .fontsize-ensurer.reset-size5.size8,.katex .sizing.reset-size5.size8{font-size:1.6em}.katex .fontsize-ensurer.reset-size5.size9,.katex .sizing.reset-size5.size9{font-size:1.92em}.katex .fontsize-ensurer.reset-size5.size10,.katex .sizing.reset-size5.size10{font-size:2.3044444444em}.katex .fontsize-ensurer.reset-size5.size11,.katex .sizing.reset-size5.size11{font-size:2.7644444444em}.katex .fontsize-ensurer.reset-size6.size1,.katex .sizing.reset-size6.size1{font-size:.5em}.katex .fontsize-ensurer.reset-size6.size2,.katex .sizing.reset-size6.size2{font-size:.6em}.katex .fontsize-ensurer.reset-size6.size3,.katex .sizing.reset-size6.size3{font-size:.7em}.katex .fontsize-ensurer.reset-size6.size4,.katex .sizing.reset-size6.size4{font-size:.8em}.katex .fontsize-ensurer.reset-size6.size5,.katex .sizing.reset-size6.size5{font-size:.9em}.katex .fontsize-ensurer.reset-size6.size6,.katex .sizing.reset-size6.size6{font-size:1em}.katex .fontsize-ensurer.reset-size6.size7,.katex .sizing.reset-size6.size7{font-size:1.2em}.katex .fontsize-ensurer.reset-size6.size8,.katex .sizing.reset-size6.size8{font-size:1.44em}.katex .fontsize-ensurer.reset-size6.size9,.katex .sizing.reset-size6.size9{font-size:1.728em}.katex .fontsize-ensurer.reset-size6.size10,.katex .sizing.reset-size6.size10{font-size:2.074em}.katex .fontsize-ensurer.reset-size6.size11,.katex .sizing.reset-size6.size11{font-size:2.488em}.katex .fontsize-ensurer.reset-size7.size1,.katex .sizing.reset-size7.size1{font-size:.4166666667em}.katex .fontsize-ensurer.reset-size7.size2,.katex .sizing.reset-size7.size2{font-size:.5em}.katex .fontsize-ensurer.reset-size7.size3,.katex .sizing.reset-size7.size3{font-size:.5833333333em}.katex .fontsize-ensurer.reset-size7.size4,.katex .sizing.reset-size7.size4{font-size:.6666666667em}.katex .fontsize-ensurer.reset-size7.size5,.katex .sizing.reset-size7.size5{font-size:.75em}.katex .fontsize-ensurer.reset-size7.size6,.katex .sizing.reset-size7.size6{font-size:.8333333333em}.katex .fontsize-ensurer.reset-size7.size7,.katex .sizing.reset-size7.size7{font-size:1em}.katex .fontsize-ensurer.reset-size7.size8,.katex .sizing.reset-size7.size8{font-size:1.2em}.katex .fontsize-ensurer.reset-size7.size9,.katex .sizing.reset-size7.size9{font-size:1.44em}.katex .fontsize-ensurer.reset-size7.size10,.katex .sizing.reset-size7.size10{font-size:1.7283333333em}.katex .fontsize-ensurer.reset-size7.size11,.katex .sizing.reset-size7.size11{font-size:2.0733333333em}.katex .fontsize-ensurer.reset-size8.size1,.katex .sizing.reset-size8.size1{font-size:.3472222222em}.katex .fontsize-ensurer.reset-size8.size2,.katex .sizing.reset-size8.size2{font-size:.4166666667em}.katex .fontsize-ensurer.reset-size8.size3,.katex .sizing.reset-size8.size3{font-size:.4861111111em}.katex .fontsize-ensurer.reset-size8.size4,.katex .sizing.reset-size8.size4{font-size:.5555555556em}.katex .fontsize-ensurer.reset-size8.size5,.katex .sizing.reset-size8.size5{font-size:.625em}.katex .fontsize-ensurer.reset-size8.size6,.katex .sizing.reset-size8.size6{font-size:.6944444444em}.katex .fontsize-ensurer.reset-size8.size7,.katex .sizing.reset-size8.size7{font-size:.8333333333em}.katex .fontsize-ensurer.reset-size8.size8,.katex .sizing.reset-size8.size8{font-size:1em}.katex .fontsize-ensurer.reset-size8.size9,.katex .sizing.reset-size8.size9{font-size:1.2em}.katex .fontsize-ensurer.reset-size8.size10,.katex .sizing.reset-size8.size10{font-size:1.4402777778em}.katex .fontsize-ensurer.reset-size8.size11,.katex .sizing.reset-size8.size11{font-size:1.7277777778em}.katex .fontsize-ensurer.reset-size9.size1,.katex .sizing.reset-size9.size1{font-size:.2893518519em}.katex .fontsize-ensurer.reset-size9.size2,.katex .sizing.reset-size9.size2{font-size:.3472222222em}.katex .fontsize-ensurer.reset-size9.size3,.katex .sizing.reset-size9.size3{font-size:.4050925926em}.katex .fontsize-ensurer.reset-size9.size4,.katex .sizing.reset-size9.size4{font-size:.462962963em}.katex .fontsize-ensurer.reset-size9.size5,.katex .sizing.reset-size9.size5{font-size:.5208333333em}.katex .fontsize-ensurer.reset-size9.size6,.katex .sizing.reset-size9.size6{font-size:.5787037037em}.katex .fontsize-ensurer.reset-size9.size7,.katex .sizing.reset-size9.size7{font-size:.6944444444em}.katex .fontsize-ensurer.reset-size9.size8,.katex .sizing.reset-size9.size8{font-size:.8333333333em}.katex .fontsize-ensurer.reset-size9.size9,.katex .sizing.reset-size9.size9{font-size:1em}.katex .fontsize-ensurer.reset-size9.size10,.katex .sizing.reset-size9.size10{font-size:1.2002314815em}.katex .fontsize-ensurer.reset-size9.size11,.katex .sizing.reset-size9.size11{font-size:1.4398148148em}.katex .fontsize-ensurer.reset-size10.size1,.katex .sizing.reset-size10.size1{font-size:.2410800386em}.katex .fontsize-ensurer.reset-size10.size2,.katex .sizing.reset-size10.size2{font-size:.2892960463em}.katex .fontsize-ensurer.reset-size10.size3,.katex .sizing.reset-size10.size3{font-size:.337512054em}.katex .fontsize-ensurer.reset-size10.size4,.katex .sizing.reset-size10.size4{font-size:.3857280617em}.katex .fontsize-ensurer.reset-size10.size5,.katex .sizing.reset-size10.size5{font-size:.4339440694em}.katex .fontsize-ensurer.reset-size10.size6,.katex .sizing.reset-size10.size6{font-size:.4821600771em}.katex .fontsize-ensurer.reset-size10.size7,.katex .sizing.reset-size10.size7{font-size:.5785920926em}.katex .fontsize-ensurer.reset-size10.size8,.katex .sizing.reset-size10.size8{font-size:.6943105111em}.katex .fontsize-ensurer.reset-size10.size9,.katex .sizing.reset-size10.size9{font-size:.8331726133em}.katex .fontsize-ensurer.reset-size10.size10,.katex .sizing.reset-size10.size10{font-size:1em}.katex .fontsize-ensurer.reset-size10.size11,.katex .sizing.reset-size10.size11{font-size:1.1996142719em}.katex .fontsize-ensurer.reset-size11.size1,.katex .sizing.reset-size11.size1{font-size:.2009646302em}.katex .fontsize-ensurer.reset-size11.size2,.katex .sizing.reset-size11.size2{font-size:.2411575563em}.katex .fontsize-ensurer.reset-size11.size3,.katex .sizing.reset-size11.size3{font-size:.2813504823em}.katex .fontsize-ensurer.reset-size11.size4,.katex .sizing.reset-size11.size4{font-size:.3215434084em}.katex .fontsize-ensurer.reset-size11.size5,.katex .sizing.reset-size11.size5{font-size:.3617363344em}.katex .fontsize-ensurer.reset-size11.size6,.katex .sizing.reset-size11.size6{font-size:.4019292605em}.katex .fontsize-ensurer.reset-size11.size7,.katex .sizing.reset-size11.size7{font-size:.4823151125em}.katex .fontsize-ensurer.reset-size11.size8,.katex .sizing.reset-size11.size8{font-size:.578778135em}.katex .fontsize-ensurer.reset-size11.size9,.katex .sizing.reset-size11.size9{font-size:.6945337621em}.katex .fontsize-ensurer.reset-size11.size10,.katex .sizing.reset-size11.size10{font-size:.8336012862em}.katex .fontsize-ensurer.reset-size11.size11,.katex .sizing.reset-size11.size11{font-size:1em}.katex .delimsizing.size1{font-family:KaTeX_Size1}.katex .delimsizing.size2{font-family:KaTeX_Size2}.katex .delimsizing.size3{font-family:KaTeX_Size3}.katex .delimsizing.size4{font-family:KaTeX_Size4}.katex .delimsizing.mult .delim-size1>span{font-family:KaTeX_Size1}.katex .delimsizing.mult .delim-size4>span{font-family:KaTeX_Size4}.katex .nulldelimiter{display:inline-block;width:.12em}.katex .delimcenter,.katex .op-symbol{position:relative}.katex .op-symbol.small-op{font-family:KaTeX_Size1}.katex .op-symbol.large-op{font-family:KaTeX_Size2}.katex .accent>.vlist-t,.katex .op-limits>.vlist-t{text-align:center}.katex .accent .accent-body{position:relative}.katex .accent .accent-body:not(.accent-full){width:0}.katex .overlay{display:block}.katex .mtable .vertical-separator{display:inline-block;min-width:1px}.katex .mtable .arraycolsep{display:inline-block}.katex .mtable .col-align-c>.vlist-t{text-align:center}.katex .mtable .col-align-l>.vlist-t{text-align:left}.katex .mtable .col-align-r>.vlist-t{text-align:right}.katex .svg-align{text-align:left}.katex svg{fill:currentColor;stroke:currentColor;display:block;height:inherit;position:absolute;width:100%}.katex svg path{stroke:none}.katex svg{fill-rule:nonzero;fill-opacity:1;stroke-width:1;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1}.katex img{border-style:none;max-height:none;max-width:none;min-height:0;min-width:0}.katex .stretchy{display:block;overflow:hidden;position:relative;width:100%}.katex .stretchy:after,.katex .stretchy:before{content:""}.katex .hide-tail{overflow:hidden;position:relative;width:100%}.katex .halfarrow-left{left:0;overflow:hidden;position:absolute;width:50.2%}.katex .halfarrow-right{overflow:hidden;position:absolute;right:0;width:50.2%}.katex .brace-left{left:0;overflow:hidden;position:absolute;width:25.1%}.katex .brace-center{left:25%;overflow:hidden;position:absolute;width:50%}.katex .brace-right{overflow:hidden;position:absolute;right:0;width:25.1%}.katex .x-arrow-pad{padding:0 .5em}.katex .cd-arrow-pad{padding:0 .55556em 0 .27778em}.katex .mover,.katex .munder,.katex .x-arrow{text-align:center}.katex .boxpad{padding:0 .3em}.katex .fbox,.katex .fcolorbox{border:.04em solid;box-sizing:border-box}.katex .cancel-pad{padding:0 .2em}.katex .cancel-lap{margin-left:-.2em;margin-right:-.2em}.katex .sout{border-bottom-style:solid;border-bottom-width:.08em}.katex .angl{border-right:.049em solid;border-top:.049em solid;box-sizing:border-box;margin-right:.03889em}.katex .anglpad{padding:0 .03889em}.katex .eqn-num:before{content:"(" counter(katexEqnNo) ")";counter-increment:katexEqnNo}.katex .mml-eqn-num:before{content:"(" counter(mmlEqnNo) ")";counter-increment:mmlEqnNo}.katex .mtr-glue{width:50%}.katex .cd-vert-arrow{display:inline-block;position:relative}.katex .cd-label-left{display:inline-block;position:absolute;right:calc(50% + .3em);text-align:left}.katex .cd-label-right{display:inline-block;left:calc(50% + .3em);position:absolute;text-align:right}.katex-display{display:block;margin:1em 0;text-align:center}.katex-display>.katex{display:block;text-align:center;white-space:nowrap}.katex-display>.katex>.katex-html{display:block;position:relative}.katex-display>.katex>.katex-html>.tag{position:absolute;right:0}.katex-display.leqno>.katex>.katex-html>.tag{left:0;right:auto}.katex-display.fleqn>.katex{padding-left:2em;text-align:left}body{counter-reset:katexEqnNo mmlEqnNo}:root{color-scheme:light;--font-body: "Noto Sans TC", "Microsoft JhengHei", "PingFang TC", sans-serif;--font-heading: "Noto Serif TC", "PMingLiU", serif;--font-mono: "IBM Plex Mono", Consolas, monospace;--type-page-title: clamp(2rem, 4vw, 3.375rem);--type-section-title: 1.3125rem;--type-subsection-title: 1.125rem;--type-card-title: .875rem;--type-lead: .9375rem;--type-body: .8125rem;--type-supporting: .75rem;--type-caption: .6875rem;--type-micro: .625rem;font-family:var(--font-body);color:#202522;background:#f4f0e7;font-synthesis:none;text-rendering:optimizeLegibility;--paper: #fbfaf6;--canvas: #f4f0e7;--ink: #202522;--muted: #6c706a;--faint: #92968f;--line: #d9d6cc;--line-strong: #c7c3b7;--accent: #e7682a;--accent-deep: #bc4717;--accent-soft: #f9e4d6;--green: #2c766b;--green-soft: #dcebe6;--blue: #416b8b;--sidebar: #ebe7dd;--radius-sm: 8px;--radius-md: 14px;--radius-lg: 22px;--shadow-soft: 0 18px 46px rgba(50, 45, 36, .08)}*{box-sizing:border-box}html{min-width:320px;background:var(--canvas);font-size:18px}html[data-font-size=small]{font-size:17px}html[data-font-size=standard]{font-size:18px}html[data-font-size=large]{font-size:20px}body{margin:0;min-width:320px;min-height:100vh}button,input,textarea,select{font:inherit}button,a,input,textarea,select{-webkit-tap-highlight-color:transparent}button{color:inherit}button,a{transition:background-color .16s ease,border-color .16s ease,color .16s ease,transform .16s ease}button:focus-visible,a:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible{outline:3px solid rgba(231,104,42,.22);outline-offset:2px}button:disabled{cursor:not-allowed;opacity:.45}textarea{resize:vertical}h1,h2,h3,p{margin-top:0}h1,h2,h3{font-family:var(--font-heading);line-height:1.35}h1,h2,p{text-wrap:pretty}.app-shell{min-height:100vh;display:grid;grid-template-columns:252px minmax(0,1fr)}.sidebar{position:fixed;inset:0 auto 0 0;width:252px;display:flex;flex-direction:column;padding:24px 18px 18px;background:var(--sidebar);border-right:1px solid var(--line);z-index:20}.brand-row{display:flex;align-items:center;gap:12px;padding:0 8px 28px}.brand-row>div:nth-child(2){display:flex;flex-direction:column}.brand-row strong{font-family:"Noto Serif TC",serif;font-size:1.3125rem;letter-spacing:.06em}.brand-row span{margin-top:2px;font-family:IBM Plex Mono,monospace;font-size:.5625rem;letter-spacing:.14em;color:var(--muted)}.brand-mark{position:relative;width:34px;height:34px;border:1px solid var(--ink);border-radius:50%;display:grid;place-items:center}.brand-mark span{position:absolute;width:15px;height:2px;margin:0;background:var(--accent);transform-origin:2px center}.brand-mark span:nth-child(1){transform:rotate(-35deg) translate(2px)}.brand-mark span:nth-child(2){transform:rotate(35deg) translate(2px)}.brand-mark span:nth-child(3){width:11px;transform:rotate(90deg) translate(7px)}.primary-nav{min-height:0;flex:1;display:flex;flex-direction:column;gap:5px;overflow-y:auto;overscroll-behavior:contain;scrollbar-width:none;-ms-overflow-style:none}.primary-nav::-webkit-scrollbar{width:0;height:0}.nav-link,.nav-group-trigger{width:100%;min-height:44px;display:flex;align-items:center;gap:11px;padding:0 12px;border:0;border-radius:var(--radius-sm);background:transparent;color:#4f534e;text-decoration:none;cursor:pointer}.nav-link:hover,.nav-group-trigger:hover{background:#ffffff8c;color:var(--ink)}.nav-link.active{background:var(--paper);color:var(--ink);box-shadow:0 4px 14px #3730260f}.nav-link.active svg{color:var(--accent)}.nav-group-trigger span{flex:1;text-align:left}.nav-group-trigger .rotated,.icon-button .rotated{transform:rotate(180deg)}.subnav{display:flex;flex-direction:column;margin:2px 0 8px 28px;padding-left:12px;border-left:1px solid var(--line-strong)}.subnav-link{min-height:34px;display:flex;align-items:center;justify-content:space-between;padding:0 8px 0 10px;color:var(--muted);text-decoration:none;font-size:.8125rem;border-radius:6px}.subnav-link:hover{color:var(--ink);background:#ffffff80}.subnav-link.active{color:var(--accent-deep);font-weight:600}.nav-empty{padding:8px 10px;color:var(--faint);font-size:.75rem}.main-column{grid-column:2;min-width:0}.topbar{position:sticky;top:0;z-index:10;height:72px;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:0 34px;background:#f4f0e7e0;border-bottom:1px solid rgba(199,195,183,.75);-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px)}.search-shell{width:min(430px,48vw);height:40px;display:flex;align-items:center;gap:10px;padding:0 11px;background:#fbfaf6b8;border:1px solid var(--line);border-radius:var(--radius-sm);color:var(--muted)}.search-shell input{min-width:0;flex:1;border:0;outline:0;background:transparent;color:var(--ink);font-size:var(--type-body)}.search-shell kbd{padding:3px 7px;border:1px solid var(--line);border-radius:5px;background:#f2efe7;font:.625rem IBM Plex Mono,monospace}.topbar-actions{display:flex;align-items:center;gap:12px}.avatar-button{width:36px;height:36px;border:1px solid var(--ink);border-radius:50%;background:var(--ink);color:#fff;cursor:pointer;font-size:.8125rem}.avatar-button:hover{transform:translateY(-1px);background:#363b37}.main-content{width:100%}.page{width:min(1180px,calc(100% - 64px));margin:0 auto;padding:54px 0 72px}.page-intro{display:flex;align-items:flex-end;justify-content:space-between;gap:32px;margin-bottom:38px}.page-intro>div:first-child{max-width:760px}.eyebrow{display:block;margin-bottom:12px;color:var(--accent-deep);font:500 .6875rem IBM Plex Mono,monospace;letter-spacing:.14em;text-transform:uppercase}.page-intro h1{margin-bottom:12px;font:700 var(--type-page-title)/1.16 var(--font-heading);letter-spacing:-.035em}.page-intro p{max-width:680px;margin-bottom:0;color:var(--muted);font-size:var(--type-lead);line-height:1.8}.terms-version{display:inline-flex;align-items:center;min-height:36px;padding:0 11px;border:1px solid var(--line);border-radius:99px;color:var(--muted);font:500 var(--type-caption) var(--font-mono);white-space:nowrap}.terms-layout{display:grid;grid-template-columns:210px minmax(0,1fr);align-items:start;gap:24px}.terms-index{position:sticky;top:92px;padding:18px;border:1px solid var(--line);border-radius:var(--radius-md);background:#fbfaf6cc}.terms-index>span{display:block;margin-bottom:10px;color:var(--muted);font-size:var(--type-caption)}.terms-index ol{display:grid;gap:2px;margin:0;padding:0;list-style:none}.terms-index a{min-height:36px;display:grid;grid-template-columns:27px minmax(0,1fr);align-items:center;gap:7px;padding:5px 7px;border-radius:6px;color:var(--muted);text-decoration:none;font-size:var(--type-caption);line-height:1.45}.terms-index a:hover,.terms-index a:focus-visible{background:#f1eee6;color:var(--ink)}.terms-index b{color:var(--accent-deep);font:600 .625rem var(--font-mono)}.terms-document{min-width:0;overflow:hidden;border:1px solid var(--line);border-radius:var(--radius-md);background:var(--paper)}.terms-notice{display:grid;grid-template-columns:auto minmax(0,1fr);gap:12px;margin:20px;padding:15px 16px;border-radius:var(--radius-sm);background:var(--accent-soft);color:var(--accent-deep)}.terms-notice>svg{margin-top:2px}.terms-notice strong{color:var(--ink);font-size:var(--type-body)}.terms-notice p{margin:3px 0 0;color:var(--muted);font-size:var(--type-caption);line-height:1.65}.terms-section{display:grid;grid-template-columns:42px minmax(0,1fr);gap:16px;padding:24px 28px;scroll-margin-top:92px}.terms-section+.terms-section{border-top:1px solid var(--line)}.terms-section>span{color:var(--accent-deep);font:600 .6875rem var(--font-mono)}.terms-section h2{margin:-4px 0 11px;font:600 var(--type-section-title)/1.4 var(--font-heading);letter-spacing:-.015em}.terms-section p{margin:0 0 11px;color:var(--muted);font-size:var(--type-body);line-height:1.85;text-wrap:pretty}.terms-section p:last-child{margin-bottom:0}.terms-section ul{display:grid;gap:8px;margin:0;padding-left:20px;color:var(--muted);font-size:var(--type-body);line-height:1.8}.terms-inline-link{margin-inline:.18em;color:var(--accent-deep);font-weight:600;text-underline-offset:3px}.terms-inline-link:hover,.terms-inline-link:focus-visible{color:var(--accent)}.terms-feedback{background:#f7f4ed}.terms-feedback .primary-button{width:fit-content;margin-top:8px;text-decoration:none}.daily-quote-hero{margin-bottom:38px}.daily-quote-meta{display:flex;align-items:center;justify-content:space-between;gap:18px;margin-bottom:18px}.daily-quote-meta .eyebrow{margin-bottom:0}.daily-quote-meta>span:last-child{color:var(--muted);font-size:var(--type-caption);letter-spacing:.04em}.daily-quote-hero blockquote{max-width:1020px;margin:0}.daily-quote-hero h1{max-width:24em;margin:0;font:700 clamp(1.8rem,3.45vw,3.15rem)/1.38 var(--font-heading);letter-spacing:-.025em;text-wrap:pretty}.daily-quote-hero.quote-medium h1{max-width:28em;font-size:clamp(1.55rem,2.8vw,2.55rem)}.daily-quote-hero.quote-long h1{max-width:34em;font-size:clamp(1.35rem,2.25vw,2.05rem);line-height:1.5}.daily-quote-hero footer{margin-top:17px;color:var(--muted);font-size:var(--type-supporting)}.daily-quote-hero cite{font-style:normal}.page-actions{flex-shrink:0}.quiet-button,.outline-button,.primary-button,.text-button{min-height:40px;display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:var(--radius-sm);cursor:pointer;text-decoration:none;font-size:.75rem;line-height:1.25}.quiet-button,.outline-button{padding:0 14px;border:1px solid var(--line-strong);background:var(--paper)}.quiet-button:hover,.outline-button:hover{border-color:var(--ink)}.primary-button{padding:0 17px;border:1px solid var(--ink);background:var(--ink);color:#fff;font-weight:600}.primary-button:hover:not(:disabled){transform:translateY(-1px);background:#343a36;box-shadow:0 8px 20px #20252229}.text-button{padding:0;border:0;background:none;color:var(--accent-deep)}.icon-button{width:36px;height:36px;display:grid;place-items:center;padding:0;border:0;border-radius:50%;background:transparent;cursor:pointer}.icon-button:hover{background:#20252212}.icon-button svg{transition:transform .16s ease}.metric-strip{display:grid;grid-template-columns:repeat(4,1fr);border-block:1px solid var(--line-strong)}.metric-item{position:relative;padding:22px 24px 24px}.metric-item+.metric-item:before{content:"";position:absolute;left:0;top:20px;bottom:20px;width:1px;background:var(--line)}.metric-label{display:flex;align-items:center;gap:8px;color:var(--muted);font-size:.75rem}.metric-label svg{color:var(--accent)}.metric-item>strong{display:block;margin:13px 0 5px;font:600 1.75rem "Noto Serif TC",serif}.metric-item>small{color:var(--faint)}.dashboard-stack{display:grid;gap:22px;margin-top:28px}.usage-panel,.quick-panel,.recent-panel,.font-size-panel,.personal-prompt-panel,.essay-category-panel,.essay-input,.conversation-canvas,.context-panel{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius-md)}.usage-panel,.quick-panel,.recent-panel{padding:25px}.section-heading{display:flex;justify-content:space-between;align-items:flex-start;gap:20px}.section-heading h2{margin-bottom:6px;font:600 var(--type-section-title)/1.35 var(--font-heading)}.section-heading p{margin-bottom:0;color:var(--muted);font-size:var(--type-supporting);line-height:1.65}.small-badge{padding:5px 9px;border-radius:99px;background:var(--green-soft);color:var(--green);font-size:.625rem;font-weight:600}.empty-chart{position:relative;height:220px;margin-top:22px;border-bottom:1px solid var(--line-strong);overflow:hidden}.chart-lines{position:absolute;top:0;right:0;bottom:0;left:0;display:flex;flex-direction:column;justify-content:space-around}.chart-lines span{height:1px;background:repeating-linear-gradient(90deg,var(--line),var(--line) 3px,transparent 3px,transparent 8px)}.chart-empty-copy{position:absolute;top:0;right:0;bottom:0;left:0;display:flex;flex-direction:column;align-items:center;justify-content:center;color:var(--muted)}.chart-empty-copy svg{margin-bottom:10px;color:var(--accent)}.chart-empty-copy strong{color:var(--ink);font-size:.8125rem}.chart-empty-copy span{margin-top:4px;font-size:.6875rem}.chart-legend{display:flex;gap:18px;margin-top:12px;color:var(--muted);font-size:.625rem}.chart-legend span{display:flex;align-items:center;gap:6px}.chart-legend i{width:12px;height:2px;background:var(--accent)}.chart-legend span:last-child i{background:var(--green)}.quick-list{margin-top:17px}.quick-list button{width:100%;display:grid;grid-template-columns:36px 1fr auto;align-items:center;gap:12px;padding:13px 8px;border:0;border-top:1px solid var(--line);background:transparent;text-align:left;cursor:pointer}.quick-list button:hover{background:#f5f2ea}.quick-list button>span:nth-child(2){display:flex;flex-direction:column;gap:3px}.quick-list small{color:var(--muted);font-size:.625rem}.subject-index{width:32px;height:32px;display:grid;place-items:center;border-radius:50%;background:var(--accent-soft);color:var(--accent-deep);font:500 .625rem IBM Plex Mono,monospace}.tone-2{background:var(--green-soft);color:var(--green)}.tone-3{background:#e6e8ee;color:#4a5871}.tone-4{background:#eee7d7;color:#7b663c}.recent-panel{margin-top:0}.subject-usage-list{display:grid;gap:12px;margin-top:20px;padding-top:18px;border-top:1px solid var(--line)}.subject-usage-row{display:grid;grid-template-columns:minmax(110px,.75fr) minmax(160px,2fr) 52px;align-items:center;gap:16px}.subject-usage-row strong{overflow:hidden;font-size:var(--type-body);text-overflow:ellipsis;white-space:nowrap}.subject-usage-track{height:8px;overflow:hidden;border-radius:99px;background:#e9e5dc}.subject-usage-track i{display:block;height:100%;border-radius:inherit;background:var(--accent)}.subject-usage-row b{color:var(--green);font:500 var(--type-caption) var(--font-mono);text-align:right}.subject-usage-empty{min-height:118px;display:flex;align-items:center;justify-content:center;gap:9px;margin-top:18px;border-top:1px solid var(--line);color:var(--muted);font-size:var(--type-supporting)}.recent-empty{display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:15px;margin-top:20px;padding:20px;background:#f6f3eb;border-radius:var(--radius-sm)}.empty-symbol{width:46px;height:46px;display:grid;place-items:center;border-radius:50%;background:var(--accent-soft);color:var(--accent-deep)}.recent-empty>div:nth-child(2){display:flex;flex-direction:column;gap:4px}.recent-empty span{color:var(--muted);font-size:.75rem}.workspace-grid{display:grid;grid-template-columns:minmax(0,1fr) 250px;gap:18px}.conversation-canvas{min-height:610px;display:flex;flex-direction:column;padding:22px;box-shadow:var(--shadow-soft)}.canvas-empty{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center}.tutor-monogram{width:58px;height:58px;display:grid;place-items:center;margin-bottom:20px;border:1px solid var(--line-strong);border-radius:50%;background:var(--accent-soft);color:var(--accent-deep);font:600 1.25rem "Noto Serif TC",serif}.canvas-empty h2{margin-bottom:9px;font:600 1.5rem "Noto Serif TC",serif}.canvas-empty p{max-width:500px;color:var(--muted);font-size:.8125rem}.suggestion-row{display:flex;flex-wrap:wrap;justify-content:center;gap:8px;margin-top:18px}.suggestion-row button{min-height:38px;padding:0 13px;border:1px solid var(--line);border-radius:99px;background:transparent;color:var(--muted);cursor:pointer}.suggestion-row button:hover{border-color:var(--accent);color:var(--accent-deep)}.composer{padding:14px;border:1px solid var(--line-strong);border-radius:var(--radius-md);background:#fff;box-shadow:0 10px 28px #342f2712}.composer textarea{width:100%;padding:4px;border:0;outline:0;color:var(--ink);line-height:1.7}.composer-actions{display:flex;align-items:center;gap:10px;margin-top:8px}.attach-button{min-height:34px;display:inline-flex;align-items:center;gap:7px;padding:0 8px;color:var(--muted);cursor:pointer;font-size:.75rem}.attach-button input,.upload-row input{position:absolute;width:1px;height:1px;opacity:0;pointer-events:none}.composer-hint{flex:1;color:var(--faint);font-size:.625rem}.send-button{min-height:38px;display:inline-flex;align-items:center;gap:7px;padding:0 15px;border:0;border-radius:var(--radius-sm);background:var(--accent);color:#fff;cursor:pointer;font-weight:600}.send-button:hover:not(:disabled){background:var(--accent-deep)}.file-chips{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:8px}.file-chips>span{display:inline-flex;align-items:center;gap:5px;padding:5px 7px;border-radius:6px;background:var(--accent-soft);color:var(--accent-deep);font-size:.625rem}.file-chips button,.selected-file button{display:grid;place-items:center;padding:0;border:0;background:none;cursor:pointer}.context-panel{align-self:start;padding:18px}.context-title{display:flex;align-items:center;gap:9px;padding-bottom:15px;border-bottom:1px solid var(--line);font-size:.8125rem}.context-title svg{color:var(--accent)}.context-panel dl{margin:10px 0 18px}.context-panel dl div{display:flex;justify-content:space-between;gap:12px;padding:10px 0;border-bottom:1px solid #e8e5dc;font-size:.6875rem}.context-panel dt{color:var(--muted)}.context-panel dd{margin:0;font-weight:600;text-align:right}.context-panel .outline-button{width:100%}.essay-category-panel{display:grid;grid-template-columns:minmax(220px,.8fr) minmax(0,1.2fr);align-items:center;gap:22px;margin-bottom:18px;padding:20px 24px}.essay-category-heading{display:flex;align-items:flex-start;gap:15px}.essay-category-heading h2{margin-bottom:4px;font:600 var(--type-section-title)/1.35 var(--font-heading)}.essay-category-heading p{margin:0;color:var(--muted);font-size:var(--type-supporting);line-height:1.6}.essay-category-options{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.essay-category-option{position:relative;min-width:0;min-height:68px;display:grid;grid-template-columns:minmax(0,1fr) 18px;align-items:center;gap:12px;padding:12px 14px;border:1px solid var(--line);border-radius:var(--radius-sm);background:#f8f6f0;cursor:pointer}.essay-category-option:hover{border-color:#c98b67;background:#fff}.essay-category-option.selected{border-color:var(--accent);background:#fff8f2;box-shadow:0 0 0 3px #e7682a14}.essay-category-option>input{position:absolute;opacity:0;pointer-events:none}.essay-category-option:focus-within{outline:3px solid rgba(231,104,42,.16);outline-offset:2px}.essay-category-copy{min-width:0;display:flex;flex-direction:column;gap:3px}.essay-category-copy strong{font-size:.8125rem}.essay-category-copy small{color:var(--muted);font-size:.625rem;line-height:1.45;text-wrap:pretty}.essay-category-check{width:17px;height:17px;border:1px solid var(--line-strong);border-radius:50%;background:#fff;box-shadow:inset 0 0 0 4px #fff}.essay-category-option.selected .essay-category-check{border-color:var(--accent);background:var(--accent)}.essay-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}.essay-input{min-height:490px;display:flex;flex-direction:column;padding:24px}.essay-input-head{display:flex;align-items:flex-start;gap:15px}.essay-input-head>span,.number-label{color:var(--accent-deep);font:500 .625rem IBM Plex Mono,monospace;letter-spacing:.1em}.essay-input h2{margin-bottom:6px;font:600 var(--type-section-title)/1.35 var(--font-heading)}.essay-input p{color:var(--muted);font-size:var(--type-supporting)}.essay-input textarea{flex:1;width:100%;min-height:280px;margin-top:10px;padding:18px;border:1px solid var(--line);border-radius:var(--radius-sm);outline:0;background:#f8f6f0;line-height:1.8}.essay-input textarea:focus{border-color:var(--accent);background:#fff}.upload-row{margin-top:12px}.upload-row label,.selected-file{min-height:46px;display:flex;align-items:center;justify-content:center;gap:8px;padding:0 12px;border:1px dashed var(--line-strong);border-radius:var(--radius-sm);color:var(--muted);cursor:pointer;font-size:.75rem}.selected-file{justify-content:flex-start;border-style:solid;color:var(--ink)}.selected-file span{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.essay-submit-bar{display:flex;align-items:center;justify-content:flex-end;margin-top:18px;padding-top:18px}.essay-history-button b{min-width:22px;height:22px;display:grid;place-items:center;border-radius:50%;background:var(--accent-soft);color:var(--accent-deep);font:600 var(--type-micro) var(--font-mono)}.font-size-panel{margin-bottom:20px;padding:25px}.font-size-panel-heading{display:flex;align-items:flex-start;gap:16px}.font-size-panel-heading h2{margin-bottom:5px;font:600 var(--type-section-title)/1.35 var(--font-heading)}.font-size-panel-heading p{margin:0;color:var(--muted);font-size:var(--type-supporting);line-height:1.7}.font-size-options{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px;margin-top:18px}.font-size-option{position:relative;min-width:0;min-height:82px;display:grid;grid-template-columns:42px minmax(0,1fr) 18px;align-items:center;gap:11px;padding:13px;border:1px solid var(--line);border-radius:var(--radius-sm);background:#f8f6f0;cursor:pointer}.font-size-option:hover{border-color:#c98b67;background:#fff}.font-size-option.selected{border-color:var(--accent);background:#fff8f2;box-shadow:0 0 0 3px #e7682a14}.font-size-option>input{position:absolute;opacity:0;pointer-events:none}.font-size-option:focus-within{outline:3px solid rgba(231,104,42,.16);outline-offset:2px}.font-size-sample{width:42px;height:42px;display:grid;place-items:center;border-radius:50%;background:var(--accent-soft);color:var(--accent-deep);font-family:"Noto Serif TC",serif}.font-size-option[data-size=small] .font-size-sample{font-size:.9em}.font-size-option[data-size=standard] .font-size-sample{font-size:1.05em}.font-size-option[data-size=large] .font-size-sample{font-size:1.25em}.font-size-option-copy{min-width:0;display:flex;flex-direction:column;gap:3px}.font-size-option-copy strong{font-size:.875rem}.font-size-option-copy small{color:var(--muted);font-size:.6875rem;line-height:1.45}.font-size-option-check{width:17px;height:17px;border:1px solid var(--line-strong);border-radius:50%;background:#fff;box-shadow:inset 0 0 0 4px #fff}.font-size-option.selected .font-size-option-check{border-color:var(--accent);background:var(--accent)}.font-size-note{margin:13px 0 0;color:var(--green);font-size:.6875rem;line-height:1.6}.personal-prompt-panel{padding:25px}.prompt-copy{display:flex;gap:16px}.prompt-copy h2{margin-bottom:5px;font:600 var(--type-section-title)/1.35 var(--font-heading)}.prompt-copy p{color:var(--muted);font-size:var(--type-supporting)}.personal-prompt-panel textarea,.prompt-field textarea{width:100%;padding:15px;border:1px solid var(--line);border-radius:var(--radius-sm);outline:0;background:#f8f6f0;line-height:1.7}.personal-prompt-panel textarea:focus,.prompt-field textarea:focus{border-color:var(--accent);background:#fff}.field-note{display:flex;align-items:center;gap:6px;margin-top:9px;color:var(--muted);font-size:.625rem}.settings-toolbar{display:flex;justify-content:space-between;align-items:center;margin:28px 0 12px}.settings-toolbar>span{color:var(--muted);font-size:.6875rem}.segmented-control{display:inline-grid;grid-template-columns:1fr 1fr;padding:4px;border:1px solid var(--line);border-radius:10px;background:#ebe7dd}.segmented-control button{min-height:36px;padding:0 16px;border:0;border-radius:7px;background:transparent;color:var(--muted);cursor:pointer;font-size:.75rem}.segmented-control button.active{background:var(--paper);color:var(--ink);box-shadow:0 4px 12px #312c2412}.tutor-settings-list{border-top:1px solid var(--line-strong)}.tutor-setting{border-bottom:1px solid var(--line-strong)}.tutor-setting:last-child{border-bottom:0}.tutor-setting-summary{min-height:90px;display:flex;align-items:center;justify-content:space-between;gap:20px}.tutor-summary-main{min-width:0;flex:1;display:flex;align-items:center;gap:14px;padding:12px 0;border:0;background:transparent;text-align:left;cursor:pointer}.tutor-summary-main>span:nth-child(2){min-width:0;display:flex;flex-direction:column;gap:4px}.tutor-summary-main small{color:var(--muted)}.tutor-glyph{flex:0 0 auto;width:42px;height:42px;display:grid;place-items:center;border:1px solid var(--line);border-radius:50%;background:var(--paper);color:var(--accent-deep);font-family:"Noto Serif TC",serif}.summary-state{display:flex;align-items:center;gap:18px}.model-state{color:var(--faint);font-size:.6875rem}.switch-label{display:flex;align-items:center;gap:8px;cursor:pointer;font-size:.75rem}.switch-label input{position:absolute;opacity:0;pointer-events:none}.switch{position:relative;width:36px;height:20px;border-radius:99px;background:#bbb9b1}.switch:after{content:"";position:absolute;top:3px;left:3px;width:14px;height:14px;border-radius:50%;background:#fff;transition:transform .16s ease}.switch-label input:checked+.switch{background:var(--accent)}.switch-label input:checked+.switch:after{transform:translate(16px)}.tutor-setting-detail{margin:0 0 18px 56px;padding:22px;border:1px solid var(--line);border-radius:var(--radius-md);background:var(--paper);animation:reveal .18s ease-out}.model-fields{display:grid;grid-template-columns:1fr 1fr;gap:14px}.model-fields label,.prompt-field{display:flex;flex-direction:column;gap:7px;color:var(--muted);font-size:.6875rem}.model-fields select{width:100%;height:44px;padding:0 12px;border:1px solid var(--line);border-radius:var(--radius-sm);background:#f2efe7;color:var(--muted)}.prompt-field{margin-top:16px}.prompt-field-heading{min-height:40px;display:flex;align-items:center;justify-content:space-between;gap:12px;color:var(--muted);font-size:.6875rem}.prompt-reset-button{min-height:36px;display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:0 11px;border:1px solid var(--line-strong);border-radius:99px;background:var(--paper);color:var(--accent-deep);cursor:pointer;font:600 .6875rem var(--font-body);white-space:nowrap}.prompt-reset-button:hover:not(:disabled){border-color:var(--accent);background:var(--accent-soft)}.prompt-reset-button:focus-visible{outline:3px solid rgba(231,104,42,.16);outline-offset:2px}.prompt-reset-button:disabled{color:var(--faint);cursor:default;opacity:.72}.essay-prompt-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.essay-prompt-field>span{display:flex;flex-direction:column;gap:3px}.essay-prompt-field>span strong{color:var(--ink);font-size:.75rem}.essay-prompt-field>span small{color:var(--muted);font-size:.625rem;line-height:1.5}.detail-footer{display:flex;align-items:center;justify-content:space-between;gap:14px;margin-top:14px}.detail-footer>span{display:flex;align-items:center;gap:7px;color:var(--muted);font-size:.625rem}.centered-state{min-height:calc(100vh - 72px);display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center}.centered-state h1{margin:18px 0 8px;font:600 1.9375rem "Noto Serif TC",serif}.centered-state p{color:var(--muted)}.centered-state .primary-button{margin-top:10px}.mobile-only,.nav-scrim{display:none}.tutorial-intro{display:flex;align-items:flex-end;justify-content:space-between;gap:32px;margin-bottom:28px}.tutorial-intro>div:first-child{max-width:760px}.tutorial-intro h1,.provider-tutorial-hero h1{margin-bottom:12px;font:700 var(--type-page-title)/1.16 var(--font-heading);letter-spacing:-.035em}.tutorial-intro p,.provider-tutorial-hero p{max-width:680px;margin:0;color:var(--muted);font-size:var(--type-lead);line-height:1.8}.tutorial-preflight{display:grid;grid-template-columns:auto minmax(0,1fr);gap:13px;margin-bottom:36px;padding:17px 19px;border:1px solid #c8dcd5;border-radius:var(--radius-md);background:var(--green-soft);color:var(--green)}.tutorial-preflight svg{margin-top:1px}.tutorial-preflight strong{color:var(--ink);font-size:var(--type-body)}.tutorial-preflight p{margin:4px 0 0;color:#56726b;font-size:var(--type-supporting);line-height:1.7}.tutorial-section-heading{display:flex;align-items:end;justify-content:space-between;gap:22px;margin-bottom:13px;padding-bottom:13px;border-bottom:1px solid var(--line-strong)}.tutorial-section-heading>div{display:flex;align-items:baseline;gap:12px}.tutorial-section-heading span{color:var(--accent-deep);font:600 var(--type-caption) var(--font-mono)}.tutorial-section-heading h2{margin:0;font:600 var(--type-section-title)/1.35 var(--font-heading)}.tutorial-section-heading p{margin:0;color:var(--muted);font-size:var(--type-supporting)}.tutorial-model-entry{margin-top:36px}.tutorial-model-mark{background:var(--green-soft);color:var(--green)}.provider-choice-list{overflow:hidden;border:1px solid var(--line);border-radius:var(--radius-md);background:var(--paper)}.provider-choice{min-height:112px;display:grid;grid-template-columns:48px minmax(0,1fr) auto;align-items:center;gap:18px;padding:20px 22px;color:inherit;text-decoration:none}.provider-choice+.provider-choice{border-top:1px solid var(--line)}.provider-choice:hover,.provider-choice:focus-visible{background:#f6f3eb}.provider-choice-mark,.provider-hero-mark{display:grid;place-items:center;border-radius:50%;font:600 1rem var(--font-heading)}.provider-choice-mark{width:46px;height:46px;background:var(--accent-soft);color:var(--accent-deep)}.provider-choice-mark.tone-2{background:var(--green-soft);color:var(--green)}.provider-choice-mark.tone-3{background:#e6e8ee;color:#4a5871}.provider-choice-mark.tone-4{background:#eee7d7;color:#7b663c}.provider-choice-copy{min-width:0;display:grid;grid-template-columns:auto 1fr;align-items:baseline;column-gap:9px}.provider-choice-copy strong{font:600 1rem var(--font-heading)}.provider-choice-copy small{color:var(--faint);font:var(--type-micro) var(--font-mono);letter-spacing:.06em}.provider-choice-copy p{grid-column:1 / -1;margin:5px 0 0;color:var(--muted);font-size:var(--type-supporting);line-height:1.6}.provider-choice-action{display:inline-flex;align-items:center;gap:8px;color:var(--accent-deep);font-size:var(--type-supporting);font-weight:600;white-space:nowrap}.provider-choice:hover .provider-choice-action svg{transform:translate(3px)}.tutorial-breadcrumbs{min-height:36px;display:flex;align-items:center;gap:8px;margin-bottom:24px;color:var(--faint);font-size:var(--type-supporting)}.tutorial-breadcrumbs a{display:inline-flex;align-items:center;gap:6px;color:var(--muted);text-decoration:none}.tutorial-breadcrumbs a:hover{color:var(--accent-deep)}.provider-tutorial-hero{display:grid;grid-template-columns:66px minmax(0,1fr) auto;align-items:center;gap:22px;margin-bottom:34px;padding-bottom:34px;border-bottom:1px solid var(--line-strong)}.provider-hero-mark{width:66px;height:66px;border:1px solid var(--line-strong);background:var(--paper);color:var(--accent-deep);font-size:1.35rem}.provider-tutorial-hero .eyebrow{margin-bottom:8px}.provider-tutorial-hero h1{font-size:clamp(2rem,3.4vw,3rem)}.tutorial-step-count{min-height:34px;display:inline-flex;align-items:center;padding:0 11px;border:1px solid var(--line);border-radius:99px;color:var(--muted);font:var(--type-caption) var(--font-mono);white-space:nowrap}.tutorial-provider-layout{display:grid;grid-template-columns:205px minmax(0,1fr);align-items:start;gap:26px}.tutorial-provider-switcher{position:sticky;top:92px;padding:15px;border:1px solid var(--line);border-radius:var(--radius-md);background:#fbfaf6d1}.tutorial-provider-switcher>span{display:block;margin:2px 7px 9px;color:var(--faint);font-size:var(--type-caption)}.tutorial-provider-switcher nav{display:grid;gap:3px}.tutorial-provider-switcher a{min-height:40px;display:grid;grid-template-columns:25px minmax(0,1fr) auto;align-items:center;gap:8px;padding:0 8px;border-radius:7px;color:var(--muted);text-decoration:none;font-size:var(--type-caption)}.tutorial-provider-switcher a:hover{background:#f1eee6;color:var(--ink)}.tutorial-provider-switcher a.active{background:var(--accent-soft);color:var(--accent-deep);font-weight:600}.tutorial-provider-switcher b{width:23px;height:23px;display:grid;place-items:center;border:1px solid currentColor;border-radius:50%;font:600 var(--type-micro) var(--font-mono)}.tutorial-steps{min-width:0;display:grid;gap:18px}.tutorial-step{overflow:hidden;border:1px solid var(--line);border-radius:var(--radius-md);background:var(--paper)}.tutorial-step>header{min-height:78px;display:grid;grid-template-columns:43px minmax(0,1fr);align-items:center;gap:13px;padding:15px 20px;border-bottom:1px solid var(--line);background:#f7f4ed}.tutorial-step>header>span{width:40px;height:40px;display:grid;place-items:center;border-radius:50%;background:var(--accent-soft);color:var(--accent-deep);font:600 var(--type-caption) var(--font-mono)}.tutorial-step header small{color:var(--faint);font:var(--type-micro) var(--font-mono);letter-spacing:.12em}.tutorial-step h2{margin:2px 0 0;font:600 var(--type-section-title)/1.35 var(--font-heading)}.tutorial-step-body{padding:20px}.tutorial-step-copy{margin-bottom:18px}.tutorial-step-copy p{margin:0 0 9px;color:var(--muted);font-size:var(--type-body);line-height:1.82}.tutorial-step-copy p:last-of-type{margin-bottom:0}.tutorial-external-link{width:fit-content;margin-top:12px}.tutorial-figure{margin:0}.tutorial-image-button{position:relative;width:100%;display:block;overflow:hidden;padding:0;border:1px solid var(--line-strong);border-radius:var(--radius-sm);background:#ebe7de;cursor:zoom-in}.tutorial-image-button img{width:100%;height:auto;max-height:620px;display:block;object-fit:contain}.tutorial-image-button>span{position:absolute;right:10px;bottom:10px;min-height:32px;display:inline-flex;align-items:center;gap:6px;padding:0 10px;border:1px solid rgba(255,255,255,.52);border-radius:99px;background:#202522d1;color:#fff;font-size:var(--type-micro);opacity:0;transform:translateY(3px);transition:opacity .16s ease,transform .16s ease}.tutorial-image-button:hover>span,.tutorial-image-button:focus-visible>span{opacity:1;transform:translateY(0)}.tutorial-completion-note{display:flex;align-items:flex-start;gap:8px;margin-top:15px;color:var(--green);font-size:var(--type-caption);line-height:1.65}.tutorial-completion-note svg{flex:0 0 auto;margin-top:2px}.tutorial-completion-note strong{color:#245f56}.tutorial-step-warning{display:flex;align-items:flex-start;gap:9px;margin-top:12px;padding:12px 13px;border-radius:var(--radius-sm);background:var(--accent-soft);color:var(--accent-deep);font-size:var(--type-caption);line-height:1.65}.tutorial-step-warning svg{flex:0 0 auto;margin-top:2px}.tutorial-lightbox{position:fixed;top:0;right:0;bottom:0;left:0;z-index:100;display:grid;place-items:center;padding:34px;background:#141715e0;-webkit-backdrop-filter:blur(9px);backdrop-filter:blur(9px)}.tutorial-lightbox>button{position:fixed;top:18px;right:18px;width:44px;height:44px;display:grid;place-items:center;border:1px solid rgba(255,255,255,.34);border-radius:50%;background:#ffffff1f;color:#fff;cursor:pointer}.tutorial-lightbox img{max-width:min(1500px,96vw);max-height:90vh;display:block;border-radius:var(--radius-sm);box-shadow:0 30px 90px #0006}.model-chapter-directory{overflow:hidden;border:1px solid var(--line);border-radius:var(--radius-md);background:var(--paper)}.model-chapter-directory>a{min-height:126px;display:grid;grid-template-columns:38px 44px minmax(0,1fr) auto;align-items:center;gap:15px;padding:20px 22px;color:inherit;text-decoration:none}.model-chapter-directory>a+a{border-top:1px solid var(--line)}.model-chapter-directory>a:hover{background:#f6f3eb}.model-chapter-index{color:var(--accent-deep);font:600 var(--type-caption) var(--font-mono)}.model-chapter-icon{width:42px;height:42px;display:grid;place-items:center;border-radius:50%;background:var(--accent-soft);color:var(--accent-deep)}.model-chapter-directory strong{font:600 1rem var(--font-heading)}.model-chapter-directory p{margin:5px 0 4px;color:var(--muted);font-size:var(--type-supporting);line-height:1.6}.model-chapter-directory small{color:var(--faint);font:var(--type-micro) var(--font-mono)}.model-chapter-directory>a>svg{color:var(--accent-deep)}.model-tutorial-hero .provider-hero-mark{border-radius:var(--radius-sm);font:600 .9rem var(--font-mono)}.model-chapter-switcher b{border-radius:6px}.tutorial-finish-panel{display:grid;grid-template-columns:44px minmax(0,1fr) auto;align-items:center;gap:15px;padding:20px;border-radius:var(--radius-md);background:var(--ink);color:#fff}.tutorial-finish-panel>span{width:42px;height:42px;display:grid;place-items:center;border-radius:50%;background:#ffffff1f;color:#f3ae84}.tutorial-finish-panel strong{font:600 .95rem var(--font-heading)}.tutorial-finish-panel p{margin:4px 0 0;color:#c9cec9;font-size:var(--type-caption);line-height:1.6}.tutorial-finish-panel .primary-button{border-color:#fff;background:#fff;color:var(--ink);white-space:nowrap}.app-shell.tutor-focus-layout{grid-template-columns:1fr}.tutor-focus-layout .main-column{grid-column:1}.tutor-focus-layout .topbar{display:none}.tutor-focus-layout .sidebar{transform:translate(-105%);transition:transform .22s ease;box-shadow:15px 0 40px #221f1a29}.tutor-focus-layout .sidebar.is-open{transform:translate(0)}.tutor-focus-layout .brand-row .mobile-only{display:grid;margin-left:auto}.tutor-focus-layout .nav-scrim{position:fixed;top:0;right:0;bottom:0;left:0;z-index:15;display:block;border:0;background:#2025223d;-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px)}@keyframes reveal{0%{opacity:0;transform:translateY(-6px)}to{opacity:1;transform:translateY(0)}}@media(max-width:980px){.app-shell{grid-template-columns:1fr}.sidebar{transform:translate(-105%);transition:transform .22s ease;box-shadow:15px 0 40px #221f1a29}.sidebar.is-open{transform:translate(0)}.main-column{grid-column:1}.mobile-only{display:grid}.brand-row .mobile-only{margin-left:auto}.nav-scrim{position:fixed;top:0;right:0;bottom:0;left:0;z-index:15;display:block;border:0;background:#2025223d;-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px)}.topbar{padding:0 22px}.dashboard-stack,.workspace-grid{grid-template-columns:1fr}.context-panel{display:none}.tutorial-provider-layout{grid-template-columns:1fr}.tutorial-provider-switcher{position:static}.tutorial-provider-switcher nav{grid-template-columns:repeat(5,minmax(0,1fr))}.model-chapter-switcher nav{grid-template-columns:repeat(4,minmax(0,1fr))}.tutorial-provider-switcher a{grid-template-columns:25px minmax(0,1fr)}.tutorial-provider-switcher a svg{display:none}}@media(max-width:720px){.topbar{height:64px;padding:0 14px}.search-shell{flex:1;width:auto}.search-shell kbd{display:none}.page{width:min(100% - 28px,1180px);padding:34px 0 54px}.page-intro{align-items:flex-start;flex-direction:column;gap:18px;margin-bottom:28px}.page-intro h1{font-size:clamp(1.875rem,10vw,2.625rem)}.terms-page .page-intro{align-items:flex-start}.terms-layout{grid-template-columns:1fr;gap:14px}.terms-index{position:static;padding:13px}.terms-index ol{grid-template-columns:repeat(2,minmax(0,1fr))}.terms-index a{align-items:start}.terms-section{grid-template-columns:30px minmax(0,1fr);gap:9px;padding:20px 16px}.terms-notice{margin:14px}.daily-quote-hero{margin-bottom:28px}.daily-quote-meta{align-items:flex-start;flex-direction:column;gap:4px;margin-bottom:14px}.daily-quote-hero h1{max-width:none;font-size:clamp(1.5rem,6.6vw,1.95rem);line-height:1.46;letter-spacing:-.02em}.daily-quote-hero.quote-medium h1{font-size:clamp(1.35rem,5.8vw,1.7rem)}.daily-quote-hero.quote-long h1{font-size:clamp(1.2rem,5.1vw,1.5rem);line-height:1.58}.daily-quote-hero footer{margin-top:12px;line-height:1.6}.metric-strip{grid-template-columns:1fr 1fr}.metric-item:nth-child(3):before{display:none}.metric-item:nth-child(n+3){border-top:1px solid var(--line)}.metric-item{padding-inline:14px}.metric-item>strong{font-size:1.5rem}.usage-panel,.quick-panel,.recent-panel{padding:19px}.subject-usage-row{grid-template-columns:minmax(88px,.8fr) minmax(76px,1.5fr) 44px;gap:10px}.recent-empty{grid-template-columns:auto 1fr}.recent-empty .primary-button{grid-column:1 / -1;width:100%}.essay-grid{grid-template-columns:1fr}.essay-category-panel{grid-template-columns:1fr;padding:19px}.essay-category-options{grid-template-columns:1fr}.essay-input{min-height:430px;padding:19px}.essay-submit-bar{align-items:stretch;flex-direction:column}.essay-submit-bar .primary-button{width:100%}.conversation-canvas{min-height:calc(100vh - 220px);padding:14px}.suggestion-row{align-items:stretch;flex-direction:column}.composer-hint{display:none}.composer-actions{justify-content:space-between}.attach-button span{display:none}.font-size-panel,.personal-prompt-panel{padding:19px}.font-size-options{grid-template-columns:1fr}.font-size-option{min-height:68px}.tutor-setting-summary{align-items:flex-start;padding:10px 0}.summary-state{gap:6px;padding-top:12px}.model-state,.switch-label>span:last-child{display:none}.tutor-setting-detail{margin-left:0;padding:16px}.model-fields{grid-template-columns:1fr}.prompt-field-heading{align-items:flex-start;flex-direction:column}.prompt-reset-button{min-height:42px}.essay-prompt-grid{grid-template-columns:1fr}.detail-footer{align-items:stretch;flex-direction:column}.detail-footer .outline-button{width:100%}.tutorial-intro{align-items:flex-start;flex-direction:column;gap:18px;margin-bottom:22px}.tutorial-intro h1,.provider-tutorial-hero h1{font-size:clamp(1.875rem,10vw,2.625rem)}.tutorial-intro .outline-button{width:100%}.tutorial-preflight{margin-bottom:28px}.tutorial-section-heading{align-items:flex-start;flex-direction:column;gap:5px}.provider-choice{grid-template-columns:42px minmax(0,1fr);gap:13px;padding:17px 15px}.provider-choice-mark{width:40px;height:40px}.provider-choice-action{grid-column:2;justify-self:start}.provider-choice-copy{grid-template-columns:1fr}.provider-choice-copy p{grid-column:1}.provider-tutorial-hero{grid-template-columns:54px minmax(0,1fr);align-items:start;gap:14px;margin-bottom:25px;padding-bottom:25px}.provider-hero-mark{width:54px;height:54px}.tutorial-step-count{grid-column:2;justify-self:start}.tutorial-provider-switcher nav{grid-template-columns:1fr 1fr}.tutorial-image-button>span{opacity:1;transform:none}.tutorial-lightbox{padding:12px}.tutorial-lightbox img{max-width:100%;max-height:86vh}.model-chapter-directory>a{grid-template-columns:30px 40px minmax(0,1fr);gap:10px;padding:17px 14px}.model-chapter-directory>a>svg{grid-column:3}.tutorial-step>header,.tutorial-step-body{padding-inline:15px}.tutorial-finish-panel{grid-template-columns:42px minmax(0,1fr)}.tutorial-finish-panel .primary-button{grid-column:1 / -1;width:100%}}@media(prefers-reduced-motion:reduce){*,*:before,*:after{scroll-behavior:auto!important;animation-duration:.01ms!important;transition-duration:.01ms!important}}.app-loading{min-height:100vh;display:flex;align-items:center;justify-content:center;gap:14px;color:var(--muted)}.storage-warning{position:fixed;top:80px;left:50%;z-index:40;max-width:min(620px,calc(100vw - 32px));padding:10px 14px;border:1px solid #d4a27e;border-radius:var(--radius-sm);background:#fff4e9;color:#8b431d;transform:translate(-50%);font-size:.75rem;box-shadow:var(--shadow-soft)}.install-button{min-height:34px;display:inline-flex;align-items:center;gap:7px;padding:0 11px;border:1px solid var(--line-strong);border-radius:var(--radius-sm);background:var(--paper);color:var(--ink);cursor:pointer;font-size:.6875rem}.install-button:hover{border-color:var(--accent);color:var(--accent-deep)}.chat-workspace{position:relative;height:calc(100vh - 72px);min-height:520px;display:grid;grid-template-rows:auto minmax(0,1fr) auto;background:var(--paper);overflow:hidden}.tutor-focus-layout .chat-workspace{height:100dvh}.chat-toolbar{position:relative;z-index:6;min-height:58px;display:flex;align-items:center;justify-content:space-between;gap:20px;margin:0 18px;padding:0 10px;background:var(--paper)}.chat-identity{min-width:0;display:flex;align-items:center;gap:11px}.chat-mobile-menu-button{flex:0 0 auto}.tutor-dot{flex:0 0 auto;width:32px;height:32px;display:grid;place-items:center;border-radius:50%;background:var(--accent-soft);color:var(--accent-deep);font:600 .8125rem "Noto Serif TC",PMingLiU,serif}.chat-identity>div{min-width:0;display:flex;align-items:baseline;gap:10px}.chat-identity strong{white-space:nowrap;font:600 .875rem "Noto Serif TC",PMingLiU,serif}.chat-identity span:last-child{overflow:hidden;color:var(--muted);font-size:.75rem;text-overflow:ellipsis;white-space:nowrap}.chat-toolbar-actions{display:flex;align-items:center;gap:5px}.chat-toolbar-actions button{min-height:36px;display:inline-flex;align-items:center;gap:7px;padding:0 10px;border:0;border-radius:7px;background:transparent;color:var(--muted);cursor:pointer;font-size:.75rem}.chat-toolbar-actions button:hover:not(:disabled){background:#efede6;color:var(--ink)}.message-list{min-height:0;padding-top:12px;overflow-y:auto;overscroll-behavior:contain;scrollbar-gutter:stable;touch-action:pan-y}.chat-empty-state{min-height:100%;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:34px 20px 18px;text-align:center}.chat-empty-mark{width:44px;height:44px;display:grid;place-items:center;margin-bottom:14px;border:1px solid var(--line-strong);border-radius:50%;background:var(--accent-soft);color:var(--accent-deep);font-family:"Noto Serif TC",PMingLiU,serif}.chat-empty-state strong{font:600 1.1875rem "Noto Serif TC",PMingLiU,serif}.chat-empty-state p{margin:7px 0 0;color:var(--muted);font-size:.75rem}.message-stream{width:min(840px,calc(100% - 36px));margin:0 auto;padding:28px 0 18px}.chat-message{width:min(92%,780px);display:grid;grid-template-columns:32px minmax(0,1fr);gap:13px;padding:20px 0}.chat-message.assistant{margin-right:auto}.chat-message.user{width:min(78%,680px);grid-template-columns:minmax(0,1fr);margin-left:auto;padding:7px 0 11px;border-bottom:0}.chat-message.user .message-body{grid-column:1;grid-row:1;padding:8px 13px 9px;border:1px solid var(--line);border-radius:15px 15px 5px;background:#efebe2;line-height:1.55}.chat-message.user .message-meta{justify-content:flex-end}.chat-message.user .message-meta{margin-bottom:2px}.chat-message.user .message-content p{margin-bottom:4px}.message-avatar{width:30px;height:30px;display:grid;place-items:center;border-radius:50%;background:var(--ink);color:#fff;font-size:.625rem;font-weight:700}.chat-message.assistant .message-avatar{background:var(--accent-soft);color:var(--accent-deep);border:1px solid #e9c5ae}.message-body{min-width:0;color:#2a2f2b;font-size:.9375rem;line-height:1.8}.message-meta{display:flex;align-items:center;gap:9px;margin-bottom:7px}.message-meta strong{font-size:.75rem}.message-meta time{color:var(--faint);font:400 .5625rem IBM Plex Mono,Consolas,monospace}.message-content{min-width:0;overflow-wrap:anywhere}.chat-message.assistant .message-content{font-size:var(--response-font-size, 1em)}.message-content>:last-child{margin-bottom:0}.message-content p{margin:0 0 12px}.message-content h1,.message-content h2,.message-content h3{margin:22px 0 9px;font-family:"Noto Serif TC",PMingLiU,serif;line-height:1.45}.message-content h1{font-size:1.55em}.message-content h2{font-size:1.3em}.message-content h3{font-size:1.1em}.message-content ul,.message-content ol{margin:8px 0 14px;padding-left:24px}.message-content blockquote{margin:14px 0;padding:8px 14px;border-left:3px solid var(--accent);background:#f7f2e9;color:var(--muted)}.message-content a{color:var(--accent-deep);text-underline-offset:3px}.message-content .ai-correction-error{color:#a64635;font-weight:700}.message-content table{width:100%;margin:16px 0;border-collapse:collapse;font-size:.86em}.message-content .markdown-table-wrap{max-width:100%;margin:16px 0;overflow-x:auto}.message-content .markdown-table-wrap table{min-width:max-content;margin:0}.message-content th,.message-content td{padding:9px 11px;border:1px solid var(--line-strong);text-align:left;vertical-align:top}.message-content th{background:#ece8de;font-weight:700}.message-content pre{max-width:100%;overflow-x:auto;margin:14px 0;padding:14px;border-radius:var(--radius-sm);background:#252a27;color:#f3f1eb;font:.86em/1.65 IBM Plex Mono,Consolas,monospace}.message-content code:not(pre code){padding:2px 5px;border-radius:4px;background:#edeae2;color:#8f3d17;font-family:IBM Plex Mono,Consolas,monospace;font-size:.9em}.message-content .katex-display{max-width:100%;margin:.72em 0;overflow-x:auto;overflow-y:hidden;padding:.42em .08em .6em;line-height:1.55;scrollbar-width:thin}.message-content .katex-display>.katex{font-size:1.05em;white-space:nowrap}.message-content li>.katex-display{margin:.5em 0 .8em .15em;text-align:left}.message-content .markdown-image{display:block;max-width:100%;max-height:520px;margin:0 auto;border-radius:var(--radius-sm);object-fit:contain}.rich-media-figure{width:min(100%,720px);margin:16px auto}.rich-media-trigger,.markdown-image-trigger{display:block;width:100%;padding:0;border:0;background:transparent;color:inherit;cursor:zoom-in}.rich-media-trigger:focus-visible,.markdown-image-trigger:focus-visible{outline:2px solid var(--accent);outline-offset:3px}.markdown-image-trigger .markdown-image{margin:0 auto}.rendered-svg{width:min(100%,720px);margin:16px auto;padding:12px;border:1px solid var(--line);border-radius:var(--radius-sm);background:#fff;text-align:center;overflow:hidden;isolation:isolate}.rich-media-figure .rendered-svg{width:100%;margin:0}.rendered-svg svg{display:block;width:100%;max-width:100%;height:auto;margin:0 auto}.rendered-svg svg text{text-rendering:geometricPrecision}.rendered-svg.rich-media-trigger{line-height:0}.search-hit-text{padding:0 .08em;border-radius:2px;background:#f2d99f;color:inherit}.search-hit-text.current-search-hit-text{background:#efad5b;box-shadow:0 0 0 2px #bc471738}.chat-message.search-hit-message{position:relative}.chat-message.search-hit-message:after{content:"";position:absolute;top:5px;right:-10px;bottom:5px;left:-10px;border:1px solid transparent;border-radius:12px;background:#f9e4d621;pointer-events:none}.chat-message.current-search-hit-message:after{border-color:#bc47177a;background:#f9e4d640;animation:search-hit-pulse .9s ease-out}@keyframes search-hit-pulse{0%{background:#f9e4d6b8;box-shadow:0 0 0 5px #e7682a1f}to{background:#f9e4d638;box-shadow:none}}.conversation-search-nav{position:absolute;top:66px;right:18px;z-index:8;max-width:calc(100% - 36px);min-height:38px;display:flex;align-items:center;gap:6px;padding:4px 5px 4px 10px;border:1px solid var(--line-strong);border-radius:10px;background:#fbfaf6f7;color:var(--muted);box-shadow:0 9px 24px #20252221;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px)}.conversation-search-nav>span{max-width:150px;overflow:hidden;color:var(--ink);font-size:.625rem;font-weight:600;text-overflow:ellipsis;white-space:nowrap}.conversation-search-nav>b{min-width:42px;color:var(--muted);font:500 .5625rem IBM Plex Mono,Consolas,monospace;text-align:center}.conversation-search-nav>button{width:30px;height:30px;display:grid;place-items:center;padding:0;border:0;border-radius:6px;background:transparent;color:var(--muted);cursor:pointer}.conversation-search-nav>button:hover:not(:disabled){background:#eeeae1;color:var(--ink)}.loading-message .message-body{display:flex;align-items:center;gap:9px;color:var(--muted)}.spin{animation:spin .9s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.message-attachments{display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,260px));gap:8px;margin-bottom:12px}.attachment-card{min-width:0;display:flex;align-items:center;gap:10px;padding:8px;border:1px solid var(--line);border-radius:var(--radius-sm);background:#f8f6f0;text-align:left;cursor:pointer}.attachment-card:hover{border-color:var(--accent);background:#fff}.attachment-card img,.attachment-icon{flex:0 0 auto;width:42px;height:42px;border-radius:6px;object-fit:cover}.attachment-icon{display:grid;place-items:center;background:var(--accent-soft);color:var(--accent-deep)}.attachment-card>span:last-child{min-width:0;display:flex;flex-direction:column;gap:3px}.attachment-card strong,.attachment-card small{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.attachment-card strong{font-size:.75rem}.attachment-card small{color:var(--muted);font-size:.6875rem}.chat-composer-wrap{position:relative;padding:9px 22px 10px;border-top:1px solid var(--line);background:linear-gradient(180deg,rgba(251,250,246,.72),var(--paper) 18%)}.chat-composer{width:min(840px,100%);margin:0 auto;padding:8px 9px 7px;border:1px solid var(--line-strong);border-radius:16px;background:#fff;box-shadow:0 8px 24px #322d2414}.chat-composer:focus-within{border-color:#b06c48;box-shadow:0 0 0 3px #e7682a1a,0 8px 24px #322d2414}.chat-composer textarea{display:block;width:100%;min-height:28px;max-height:168px;padding:6px 8px 3px;border:0;outline:0;background:transparent;line-height:1.55;resize:none;overflow-y:auto}.chat-composer-actions{display:flex;align-items:center;gap:9px;min-height:34px}.chat-composer-actions>span{flex:1;color:var(--faint);font-size:.6875rem}.composer-file-button{width:32px;height:32px;display:grid;place-items:center;border-radius:7px;color:var(--muted);cursor:pointer}.composer-file-button:hover{background:#efede6;color:var(--ink)}.composer-file-button input{position:absolute;width:1px;height:1px;opacity:0;pointer-events:none}.compact-send-button{width:34px;height:34px;display:grid;place-items:center;border:0;border-radius:9px;background:var(--accent);color:#fff;cursor:pointer}.compact-send-button:hover:not(:disabled){background:var(--accent-deep)}.draft-attachments{display:flex;gap:6px;padding:0 5px 7px;overflow-x:auto}.draft-attachment{flex:0 0 auto;display:flex;align-items:center;border:1px solid var(--line);border-radius:7px;background:#f5f2ea}.draft-attachment button{height:30px;display:inline-flex;align-items:center;gap:6px;padding:0 8px;border:0;background:transparent;cursor:pointer;font-size:.5625rem}.draft-attachment button:first-child span{max-width:160px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.draft-attachment button:last-child{padding-inline:5px;color:var(--muted)}.composer-status{width:min(840px,100%);display:flex;align-items:center;gap:7px;margin:7px auto 0;color:#9b491f;font-size:.625rem}.composer-status span{flex:1}.composer-status a{color:inherit;font-weight:700}.local-disclaimer{margin:6px 0 0;color:var(--faint);font-size:.625rem;text-align:center}.drawer-backdrop,.modal-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;z-index:70;background:#20252247;-webkit-backdrop-filter:blur(3px);backdrop-filter:blur(3px)}.history-drawer{position:absolute;inset:0 0 0 auto;width:min(390px,92vw);display:flex;flex-direction:column;background:var(--paper);box-shadow:-18px 0 44px #20252224;animation:drawer-in .19s ease-out}@keyframes drawer-in{0%{transform:translate(20px);opacity:.6}to{transform:translate(0);opacity:1}}.history-drawer>header,.attachment-viewer>header,.print-dialog>header{min-height:64px;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:0 18px;border-bottom:1px solid var(--line)}.history-drawer>header>div,.print-dialog>header>div{display:flex;align-items:center;gap:9px}.new-conversation-row{min-height:44px;display:flex;align-items:center;gap:9px;margin:14px 14px 5px;padding:0 13px;border:1px solid var(--line-strong);border-radius:var(--radius-sm);background:transparent;cursor:pointer}.new-conversation-row:hover{border-color:var(--accent);color:var(--accent-deep)}.history-list{min-height:0;flex:1;padding:8px 14px 20px;overflow-y:auto}.history-list>button{width:100%;min-height:62px;display:flex;align-items:center;justify-content:space-between;gap:12px;padding:9px 11px;border:0;border-bottom:1px solid var(--line);background:transparent;text-align:left;cursor:pointer}.history-list>button:hover,.history-list>button.active{background:#f0ede5}.history-list>button>span{min-width:0;display:flex;flex-direction:column;gap:4px}.history-list strong,.history-list small{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.history-list strong{font-size:.75rem}.history-list small{color:var(--muted);font-size:.5625rem}.history-empty{min-height:260px;display:flex;flex-direction:column;align-items:center;justify-content:center;color:var(--muted);text-align:center}.history-empty strong{margin-top:10px;color:var(--ink)}.history-empty span{margin-top:4px;font-size:.625rem}.attachment-viewer,.media-viewer,.print-dialog{position:absolute;top:5vh;right:5vw;bottom:5vh;left:5vw;display:flex;flex-direction:column;overflow:hidden;border:1px solid var(--line);border-radius:var(--radius-md);background:var(--paper);box-shadow:0 26px 70px #20252233}.attachment-viewer>header{display:grid;grid-template-columns:minmax(0,1fr) auto;align-items:center}.attachment-file-meta{min-width:0;display:flex;flex-direction:column;align-items:flex-start;gap:3px}.attachment-file-meta strong{max-width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.attachment-viewer-actions{display:flex;align-items:center;justify-content:flex-end;gap:5px}.attachment-viewer>header span{color:var(--muted);font-size:.5625rem}.attachment-viewer a.icon-button{color:inherit;text-decoration:none}.attachment-preview-body{min-height:0;flex:1;display:grid;place-items:center;padding:18px;overflow:auto;background:#e9e6de}.attachment-preview-body.is-zoomable{display:block;overscroll-behavior:contain;touch-action:none;cursor:grab}.attachment-preview-body.is-zoomable.is-panning{cursor:grabbing}.attachment-zoom-stage{min-height:100%;display:grid;place-items:center;margin:auto}.attachment-zoom-stage img{display:block;width:100%;height:auto;object-fit:contain;box-shadow:0 10px 32px #20252226;-webkit-user-select:none;user-select:none}.attachment-preview-body iframe{width:100%;height:100%;min-height:65vh;border:0;background:#fff}.attachment-text-preview{width:100%;min-height:65vh;margin:0;padding:1rem;overflow:auto;white-space:pre-wrap;overflow-wrap:anywhere;background:#fff;color:#1f2937;font:.9rem/1.6 ui-monospace,SFMono-Regular,Consolas,monospace}.attachment-preview-body pre{justify-self:stretch;align-self:stretch;margin:0;padding:20px;overflow:auto;border-radius:var(--radius-sm);background:#fff;white-space:pre-wrap}.unsupported-preview{display:flex;flex-direction:column;align-items:center;gap:13px;color:var(--muted)}.media-viewer-backdrop{z-index:90}.media-viewer{top:3vh;right:3vw;bottom:3vh;left:3vw}.media-viewer>header{min-height:64px;display:flex;align-items:center;justify-content:space-between;gap:14px;padding:0 18px;border-bottom:1px solid var(--line)}.media-viewer>header>div:first-child{min-width:0;display:flex;flex-direction:column;gap:3px}.media-viewer>header strong{max-width:45vw;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.media-viewer>header span{color:var(--muted);font-size:.5625rem}.media-viewer-actions{display:flex;align-items:center;gap:5px}.media-viewer-actions a{color:inherit;text-decoration:none}.zoom-readout{min-height:32px;display:inline-flex;align-items:center;gap:5px;padding:0 8px;border:1px solid var(--line);border-radius:6px;background:#fff;color:var(--muted);cursor:pointer;font:500 .5625rem IBM Plex Mono,Consolas,monospace}.media-preview-viewport{min-height:0;flex:1;padding:20px;overflow:auto;background:#dfddd6;overscroll-behavior:contain;touch-action:none;cursor:grab}.media-preview-viewport.is-panning{cursor:grabbing}.media-zoom-stage{min-height:100%;display:grid;place-items:center;margin:auto}.media-zoom-stage img{display:block;width:100%;height:auto;max-width:none;border-radius:6px;background:#fff;box-shadow:0 15px 40px #2025222e;-webkit-user-select:none;user-select:none}.media-viewer>footer{padding:9px 18px;border-top:1px solid var(--line);color:var(--muted);font-size:.5625rem;text-align:center}.media-viewer>footer.has-error{color:#9b491f}.media-viewer>footer.has-success{color:var(--green)}.print-dialog{inset:7vh max(16px,calc(50vw - 390px))}.print-dialog>header>div>div{display:flex;flex-direction:column;gap:3px}.print-dialog>header span{color:var(--muted);font-size:.5625rem}.print-select-all{display:flex;align-items:center;gap:8px;padding:12px 18px;border-bottom:1px solid var(--line)}.print-select-all button{display:inline-flex;align-items:center;gap:5px;padding:5px 8px;border:0;border-radius:5px;background:transparent;cursor:pointer;font-size:.625rem}.print-select-all button:hover{background:#efede6}.print-select-all>span{margin-left:auto;color:var(--muted);font-size:.5625rem}.print-message-list{min-height:0;flex:1;padding:10px 18px 18px;overflow-y:auto;background:#f4f1e9}.print-message-option{position:relative;width:100%;display:grid;grid-template-columns:22px minmax(0,1fr);align-items:start;gap:10px;padding:8px 4px;cursor:pointer}.print-message-option+.print-message-option{margin-top:2px}.print-message-option>input{position:absolute;opacity:0;pointer-events:none}.print-message-option.user{grid-template-columns:minmax(0,1fr) 22px}.print-message-option.user .print-option-check{grid-column:2;grid-row:1}.print-message-option.user .print-option-bubble{grid-column:1;grid-row:1;justify-self:end;border-radius:15px 15px 5px;background:#e9e4da}.print-option-check{width:22px;height:30px;display:grid;place-items:center;color:var(--faint)}.print-message-option.selected .print-option-check{color:var(--accent-deep)}.print-option-bubble{min-width:0;width:fit-content;max-width:88%;padding:11px 13px;border:1px solid var(--line);border-radius:5px 15px 15px;background:#fff;color:var(--ink);box-shadow:0 4px 12px #322d240a;pointer-events:none}.print-message-option.selected .print-option-bubble{border-color:#d9895d;box-shadow:0 0 0 3px #e7682a1a}.print-option-bubble>header{display:flex;align-items:baseline;justify-content:space-between;gap:12px;margin-bottom:6px}.print-option-bubble>header strong{font-size:.625rem}.print-option-bubble>header time{color:var(--faint);font:400 .5rem IBM Plex Mono,Consolas,monospace}.print-option-bubble .message-content{font-size:.6875rem;line-height:1.65}.print-option-bubble .message-content p{margin-bottom:8px}.print-option-bubble .message-content h1{font-size:1rem}.print-option-bubble .message-content h2{font-size:.875rem}.print-option-bubble .message-content h3{font-size:.75rem}.print-option-bubble .message-content table,.print-option-bubble .message-content pre{font-size:.5625rem}.print-option-bubble .message-content .markdown-image{max-height:180px}.print-option-attachments{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:8px}.print-option-attachments img{width:76px;height:58px;border-radius:6px;object-fit:cover}.print-option-attachments span{min-width:0;display:inline-flex;align-items:center;gap:5px;padding:5px 7px;border-radius:6px;background:#f0ede6;color:var(--muted);font-size:.5rem}.attachment-only-note{margin:0;color:var(--muted);font-size:.5625rem}.print-dialog>footer{display:flex;justify-content:flex-end;gap:8px;padding:13px 18px;border-top:1px solid var(--line)}.print-document{display:none}.encrypted-save-state{display:inline-flex;align-items:center;gap:8px;padding:9px 12px;border:1px solid #b7d0c8;border-radius:99px;background:var(--green-soft);color:var(--green);font-size:.6875rem;font-weight:600}.api-settings-panel{margin-top:20px;padding:25px;border:1px solid var(--line);border-radius:var(--radius-md);background:var(--paper);scroll-margin-top:90px}.api-settings-heading{display:flex;align-items:flex-start;justify-content:space-between;gap:26px}.api-settings-heading>div:first-child{display:flex;gap:16px}.api-settings-heading h2{margin-bottom:5px;font:600 1.3125rem "Noto Serif TC",PMingLiU,serif}.api-settings-heading p{margin:0;color:var(--muted);font-size:.6875rem}.live-api-toggle{display:flex;align-items:center;gap:10px;padding:11px 13px;border:1px solid var(--line);border-radius:var(--radius-sm);cursor:pointer}.live-api-toggle>input{position:absolute;opacity:0}.live-api-toggle>input:checked+.switch{background:var(--accent)}.live-api-toggle>input:checked+.switch:after{transform:translate(16px)}.live-api-toggle:focus-within{border-color:#b06c48;box-shadow:0 0 0 3px #e7682a17}.live-api-toggle>span:last-child{display:flex;flex-direction:column;gap:3px}.live-api-toggle strong{font-size:.6875rem}.live-api-toggle small{max-width:290px;color:var(--muted);font-size:.625rem;line-height:1.5}.quota-policy-row{display:flex;align-items:center;justify-content:space-between;gap:18px;margin-top:16px;padding:12px 14px;border:1px solid var(--line);border-radius:var(--radius-sm);background:#f5f2ea}.quota-policy-row>div{display:flex;align-items:center;gap:9px}.quota-policy-row>div>span{display:flex;flex-direction:column;gap:2px}.quota-policy-row strong{font-size:.75rem}.quota-policy-row small{color:var(--muted);font-size:.625rem;line-height:1.5}.quota-policy-row label{display:flex;align-items:center;gap:8px;color:var(--muted);font-size:.6875rem}.quota-policy-row select,.quota-policy-row input[type=time]{height:38px;padding:0 10px;border:1px solid var(--line);border-radius:6px;background:#fff;color:var(--ink);font-size:.75rem}.quota-reset-controls{display:flex;align-items:center;gap:12px}.quota-reset-controls label{display:flex;align-items:center;gap:7px}.provider-accordion{margin-top:20px;border-top:1px solid var(--line-strong)}.provider-accordion>article{border-bottom:1px solid var(--line-strong)}.provider-accordion>article:last-child{border-bottom:0}.provider-summary{width:100%;min-height:60px;display:grid;grid-template-columns:auto minmax(0,1fr) auto;align-items:center;gap:11px;padding:0 7px;border:0;background:transparent;text-align:left;cursor:pointer}.provider-summary>span:nth-child(2){display:flex;flex-direction:column;gap:2px}.provider-summary small{color:var(--muted);font-size:.6875rem}.provider-summary>span:last-child{color:var(--muted);font-size:.6875rem}.provider-status-dot{width:8px;height:8px;border-radius:50%;background:#b7b3aa}.provider-status-dot[data-connected=true]{background:#22a65a;box-shadow:0 0 0 4px #22a65a1f}.provider-detail{padding:0 7px 18px 26px}.api-key-editor{padding:15px;border:1px solid var(--line);border-radius:var(--radius-sm);background:#f7f4ed}.api-key-editor+.api-key-editor{margin-top:9px}.api-key-main{display:grid;grid-template-columns:180px minmax(220px,1fr) auto;align-items:center;gap:8px}.api-key-main>input,.api-limit-grid input,.quota-group-limit-grid input,.quota-group-name input{height:40px;min-width:0;padding:0 10px;border:1px solid var(--line);border-radius:7px;background:#fff;font-size:.8125rem}.api-limit-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;margin-top:10px}.api-limit-grid label{display:flex;flex-direction:column;gap:4px;color:var(--muted);font-size:.5rem}.key-usage-line{display:flex;align-items:center;gap:6px;margin-top:9px;color:var(--muted);font-size:.625rem}.provider-actions{display:flex;flex-wrap:wrap;justify-content:flex-end;gap:8px;margin-top:11px}.provider-actions .outline-button,.provider-actions .primary-button{min-height:38px;padding-inline:12px}.provider-sync-status{display:flex;align-items:center;gap:6px;margin:10px 0 0;color:var(--muted);font-size:.625rem}.model-quota-manager{margin-top:14px;padding:14px;border:1px solid #bfd4cd;border-radius:var(--radius-sm);background:#f2f8f5}.model-quota-heading{display:flex;align-items:center;justify-content:space-between;gap:14px}.model-quota-heading>div{display:flex;align-items:flex-start;gap:8px;color:var(--green)}.model-quota-heading>div>span{display:flex;flex-direction:column;gap:2px}.model-quota-heading strong{font-size:.625rem}.model-quota-heading small{color:#58776f;font-size:.5rem}.model-quota-heading select{min-width:min(280px,48%);height:38px;padding:0 9px;border:1px solid #bfd4cd;border-radius:7px;background:#fff}.model-quota-usage{display:flex;align-items:center;flex-wrap:wrap;gap:7px 16px;margin-top:10px;color:var(--green);font:500 .5rem IBM Plex Mono,Consolas,monospace}.model-quota-usage small{margin-left:auto;color:var(--muted);font:400 .5rem Noto Sans TC,sans-serif}.quota-groups-section{margin-top:24px;padding-top:20px;border-top:1px solid var(--line-strong)}.quota-groups-heading,.quota-groups-heading>div{display:flex;align-items:center;justify-content:space-between;gap:10px}.quota-groups-heading>div>span{display:flex;flex-direction:column;gap:2px}.quota-groups-heading strong{font-size:.6875rem}.quota-groups-heading small,.quota-groups-empty{color:var(--muted);font-size:.5rem}.quota-groups-empty{margin:13px 0 0;padding:14px;border-radius:7px;background:#f5f2ea}.quota-group-list{margin-top:12px}.quota-group-list>article{padding:14px;border:1px solid var(--line);border-radius:var(--radius-sm);background:#f7f4ed}.quota-group-list>article+article{margin-top:8px}.quota-group-fields{display:grid;grid-template-columns:1fr 180px 160px;gap:8px}.quota-group-fields label,.quota-group-fields>div,.group-model-picker{display:flex;flex-direction:column;gap:5px;color:var(--muted);font-size:.5rem}.quota-group-fields input,.group-model-picker select{min-height:38px;padding:7px 9px;border:1px solid var(--line);border-radius:6px;background:#fff}.quota-group-fields>div strong{min-height:38px;display:flex;align-items:center;color:var(--green);font:500 .625rem IBM Plex Mono,Consolas,monospace}.group-model-picker{margin-top:10px}.group-model-picker select{min-height:98px}.group-model-picker small{color:var(--muted)}.quota-group-name{display:flex;flex-direction:column;gap:5px;color:var(--muted);font-size:.5rem}.quota-group-limit-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;margin-top:10px}.quota-group-limit-grid label{display:flex;flex-direction:column;gap:4px;color:var(--muted);font-size:.5rem}.quota-group-limit-grid label>span{display:flex;align-items:baseline;justify-content:space-between;gap:5px}.quota-group-limit-grid label small{color:var(--faint);font-size:.4375rem}.model-fields{grid-template-columns:repeat(3,1fr)}.detail-footer a.outline-button{color:inherit;text-decoration:none}.recent-conversation-list{margin-top:16px}.recent-conversation-list>button{width:100%;min-height:58px;display:grid;grid-template-columns:34px minmax(0,1fr) auto;align-items:center;gap:11px;padding:8px;border:0;border-top:1px solid var(--line);background:transparent;text-align:left;cursor:pointer}.recent-conversation-list>button:hover{background:#f4f1e9}.recent-tutor-mark{width:32px;height:32px;display:grid;place-items:center;border-radius:50%;background:var(--accent-soft);color:var(--accent-deep);font-size:.625rem}.recent-conversation-list>button>span:nth-child(2){min-width:0;display:flex;flex-direction:column;gap:3px}.recent-conversation-list strong,.recent-conversation-list small{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.recent-conversation-list small{color:var(--muted);font-size:.5625rem}.recent-conversation-list em{overflow:hidden;color:var(--muted);font-size:.5625rem;font-style:normal;text-overflow:ellipsis;white-space:nowrap}.model-usage-list{margin-top:18px;border-top:1px solid var(--line)}.model-usage-list>div{min-height:50px;display:flex;align-items:center;justify-content:space-between;gap:16px;border-bottom:1px solid var(--line)}.model-usage-list>div>span{min-width:0;display:flex;flex-direction:column;gap:2px}.model-usage-list strong{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:.6875rem}.model-usage-list small{color:var(--muted);font-size:.5rem}.model-usage-list b{flex:0 0 auto;color:var(--green);font:500 .625rem IBM Plex Mono,Consolas,monospace}.selected-file>button{display:flex;align-items:center;gap:8px;min-height:42px;padding:0 10px;border:0;background:transparent;cursor:pointer}.selected-file>button:first-child{min-width:0;flex:1}.selected-file>button:first-child span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.selected-file>button:last-child{flex:0 0 auto;color:var(--muted)}@media(max-width:720px){.install-button span{display:none}.chat-workspace{height:calc(100dvh - 64px);min-height:420px;grid-template-rows:auto minmax(0,1fr) auto}.chat-workspace.has-integrated-menu{height:100dvh}.message-list{padding-top:8px}.chat-toolbar{min-height:54px;margin-inline:8px;padding:0 4px}.conversation-search-nav{top:68px;right:10px;max-width:calc(100% - 20px)}.conversation-search-nav>span{max-width:92px}.chat-identity>div{align-items:flex-start;flex-direction:column;gap:0}.chat-toolbar-actions button{width:34px;justify-content:center;padding:0}.chat-toolbar-actions button span{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0)}.message-stream{width:min(100% - 24px,840px);padding-top:16px}.chat-message{width:100%;grid-template-columns:26px minmax(0,1fr);gap:10px;padding:16px 0}.chat-message.user{width:90%;grid-template-columns:minmax(0,1fr);padding:5px 0 9px}.message-avatar{width:26px;height:26px}.message-body{font-size:.875rem}.chat-composer-wrap{padding:7px 10px 8px}.chat-composer{border-radius:13px}.chat-composer-actions>span{display:none}.chat-composer-actions{justify-content:space-between}.local-disclaimer{margin-top:4px}.attachment-viewer{top:10px;right:10px;bottom:10px;left:10px}.attachment-viewer>header{min-height:auto;grid-template-columns:minmax(0,1fr);align-items:stretch;gap:8px;padding:11px 12px 9px}.attachment-viewer-actions{padding-top:8px;border-top:1px solid var(--line)}.attachment-preview-body{padding:8px}.media-viewer{top:6px;right:6px;bottom:6px;left:6px}.media-viewer>header{min-height:56px;padding:0 9px}.media-viewer>header>div:first-child{display:none}.media-viewer-actions{width:100%;justify-content:center}.media-preview-viewport{padding:8px}.print-dialog{top:7vh;right:10px;bottom:7vh;left:10px}.print-message-list{padding-inline:10px}.print-option-bubble{max-width:94%}.api-settings-heading{align-items:stretch;flex-direction:column}.live-api-toggle{justify-content:flex-start}.quota-policy-row{align-items:stretch;flex-direction:column}.quota-policy-row label{justify-content:space-between}.quota-reset-controls{align-items:stretch;flex-direction:column}.api-key-main{grid-template-columns:minmax(0,1fr)}.api-key-main>input:first-child{grid-column:1;grid-row:1}.api-key-main>input:nth-child(2){grid-column:1;grid-row:2}.api-key-main .switch-label{grid-column:1;grid-row:3;justify-content:flex-start;min-height:32px}.api-key-main .switch-label>span:last-child{display:inline}.provider-actions{align-items:stretch;flex-direction:column}.provider-actions .outline-button,.provider-actions .primary-button{width:100%}.api-limit-grid{grid-template-columns:1fr 1fr}.model-quota-heading{align-items:stretch;flex-direction:column}.model-quota-heading select{width:100%;max-width:none}.quota-group-limit-grid{grid-template-columns:1fr 1fr}.quota-groups-heading{align-items:stretch;flex-direction:column}.quota-group-fields,.model-fields{grid-template-columns:1fr}}@media print{@page{margin:16mm}body{background:#fff!important;color:#000!important}.app-shell{display:none!important}.print-document{display:block!important;font-family:Noto Sans TC,Microsoft JhengHei,sans-serif;color:#111}.print-document>header{padding-bottom:14px;border-bottom:2px solid #222}.print-document>header span{font-size:9pt;color:#555}.print-document>header h1{margin:5px 0;font:700 22pt "Noto Serif TC",PMingLiU,serif}.print-document>header p{margin:0;color:#666;font-size:8pt}.print-document>article{break-inside:avoid;padding:16px 0;border-bottom:1px solid #bbb}.print-document>article h2{margin:0 0 8px;font-size:10pt}.print-document>article>img{max-width:100%;max-height:160mm;object-fit:contain}.print-document .message-content{font-size:10.5pt;line-height:1.7}.print-document .message-content table{break-inside:avoid}.print-document .markdown-table-wrap{overflow:visible}.print-document .markdown-table-wrap table{min-width:0}.print-document .message-content .markdown-image{max-width:100%;max-height:160mm}.print-document .rendered-svg{border:0}.print-document .rendered-svg svg{max-width:100%}.print-document .katex-display{overflow:visible}.print-document pre{white-space:pre-wrap}}.topbar-spacer{min-width:0;flex:1}.home-search-area{position:relative;width:min(430px,48vw)}.home-search-area .search-shell{width:100%}.search-shell>button{width:28px;height:28px;display:grid;place-items:center;padding:0;border:0;border-radius:6px;background:transparent;color:var(--muted);cursor:pointer}.search-shell>button:hover{background:#ebe8df;color:var(--ink)}.global-search-results{position:absolute;top:calc(100% + 9px);left:0;z-index:30;width:min(620px,calc(100vw - 44px));max-height:min(480px,calc(100vh - 96px));overflow:hidden;border:1px solid var(--line-strong);border-radius:12px;background:var(--paper);box-shadow:0 20px 50px #2025222e}.global-search-results>header{min-height:42px;display:flex;align-items:center;justify-content:space-between;gap:12px;padding:0 13px;border-bottom:1px solid var(--line)}.global-search-results>header strong{font-size:.6875rem}.global-search-results>header span{color:var(--muted);font-size:.5625rem}.global-search-list{max-height:min(430px,calc(100vh - 138px));overflow-y:auto}.global-search-list>button{width:100%;min-height:64px;display:grid;grid-template-columns:30px minmax(0,1fr) 18px;align-items:center;gap:10px;padding:9px 12px;border:0;border-bottom:1px solid var(--line);background:transparent;text-align:left;cursor:pointer}.global-search-list>button:hover,.global-search-list>button:focus-visible{background:#f2eee5}.search-result-mark{width:28px;height:28px;display:grid;place-items:center;border-radius:50%;background:var(--accent-soft);color:var(--accent-deep);font-size:.5625rem;font-weight:700}.search-result-copy{min-width:0;display:flex;flex-direction:column;gap:2px}.search-result-copy strong,.search-result-copy small,.search-result-copy em{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.search-result-copy strong{font-size:.6875rem}.search-result-copy small{color:var(--faint);font-size:.5rem}.search-result-copy em{color:var(--muted);font-size:.5625rem;font-style:normal}.global-search-list>button>svg{color:var(--faint)}.global-search-empty{min-height:130px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:8px;color:var(--muted);font-size:.625rem}.quota-policy-row{flex-wrap:wrap}.next-reset-note{width:100%;padding-top:8px;border-top:1px solid var(--line);color:var(--green);font-size:.625rem;text-align:right}.quota-accuracy-note{display:flex;align-items:center;gap:7px;margin:8px 0 0;color:var(--muted);font-size:.625rem;line-height:1.55}.quota-accuracy-note svg{flex:0 0 auto;color:var(--green)}.rotation-order-note{display:flex;align-items:flex-start;gap:9px;margin-bottom:10px;padding:11px 12px;border:1px solid #bfd4cd;border-radius:7px;background:var(--green-soft);color:var(--green)}.rotation-order-note>span{display:flex;flex-direction:column;gap:3px}.rotation-order-note strong{font-size:.75rem}.rotation-order-note small{color:#4c6f68;font-size:.625rem;line-height:1.55}.api-key-editor.is-active{border-color:#db946d;box-shadow:0 0 0 3px #e7682a14}.key-order-row{display:flex;align-items:center;gap:9px;margin-bottom:9px}.key-order-number{color:var(--accent-deep);font:600 .625rem IBM Plex Mono,Consolas,monospace}.active-key-choice{display:inline-flex;align-items:center;cursor:pointer}.active-key-choice input{position:absolute;opacity:0;pointer-events:none}.active-key-choice>span{min-height:28px;display:inline-flex;align-items:center;gap:6px;padding:0 9px;border:1px solid var(--line);border-radius:99px;background:#fff;color:var(--muted);font-size:.6875rem}.active-key-choice input:checked+span{border-color:#db946d;background:var(--accent-soft);color:var(--accent-deep);font-weight:700}.key-order-row .danger-icon{margin-left:auto}.danger-icon{color:#9e3f2e}.danger-icon:hover{background:#fae4df}.api-limit-grid label>span{display:flex;align-items:baseline;justify-content:space-between;gap:5px}.api-limit-grid label small{color:var(--faint);font-size:.4375rem}.key-usage-line{flex-wrap:wrap;column-gap:13px}.key-usage-line span+span{padding-left:13px;border-left:1px solid var(--line)}.quota-group-title{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:10px}.quota-group-title>strong{font:600 .8125rem "Noto Serif TC",PMingLiU,serif}.quota-group-fields>div small{color:var(--muted);font-size:.4375rem}.group-model-picker{min-width:0;margin:12px 0 0;padding:0;border:0;color:var(--muted)}.group-model-picker legend{margin-bottom:7px;padding:0;font-size:.5rem}.group-model-picker>small{display:block;padding:14px;border-radius:7px;background:#fff;color:var(--muted);font-size:.5rem}.group-model-options{max-height:180px;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:5px;padding:7px;overflow-y:auto;border:1px solid var(--line);border-radius:7px;background:#fff}.group-model-options label{min-width:0;min-height:34px;display:flex;align-items:center;gap:7px;padding:5px 7px;border-radius:5px;cursor:pointer;font-size:.5625rem}.group-model-options label:hover{background:#f1eee6}.group-model-options span{min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.group-model-options input{accent-color:var(--accent)}.shared-key-readout{min-width:0;display:flex;flex-direction:column;justify-content:center;gap:4px;padding:8px 12px;border:1px solid #bfd4cd;border-radius:var(--radius-sm);background:var(--green-soft)}.shared-key-readout>span,.shared-key-readout>small{color:#58776f;font-size:.5rem}.shared-key-readout>strong{overflow:hidden;color:var(--green);font-size:.6875rem;text-overflow:ellipsis;white-space:nowrap}.model-management-v0{max-width:1160px}.settings-page .model-management-v0{max-width:none;margin-top:20px;scroll-margin-top:90px}.model-v0-settings-intro{margin-bottom:14px}.model-v0-hero{display:flex;align-items:center;justify-content:space-between;gap:24px;margin-bottom:14px;padding:20px 22px;border:1px solid var(--line);border-radius:var(--radius-md);background:#fbfaf6d1}.model-v0-hero h1{max-width:720px;margin:6px 0;font:600 clamp(1.5rem,2.5vw,2.05rem) "Noto Serif TC","PMingLiU",serif;letter-spacing:-.03em;line-height:1.22;text-wrap:pretty}.model-v0-hero p{max-width:720px;margin:0;color:var(--muted);font-size:.8125rem;line-height:1.65;text-wrap:pretty}.model-v0-hero-status{flex:0 0 auto;min-width:174px;display:grid;grid-template-columns:auto 1fr;align-items:baseline;gap:1px 8px;padding:11px 13px;border:1px solid #bfd4cd;border-radius:var(--radius-sm);background:var(--green-soft);color:var(--green)}.model-v0-hero-status strong{font:600 1.375rem IBM Plex Mono,Consolas,monospace}.model-v0-hero-status span{font-size:.75rem}.model-v0-hero-status small{grid-column:1 / -1;color:#58776f;font-size:.6875rem}.model-v0-rotation{display:grid;grid-template-columns:auto minmax(0,1fr) minmax(280px,auto);align-items:center;gap:14px;margin-bottom:20px;padding:16px 18px;border:1px solid #bfd4cd;border-radius:var(--radius-md);background:var(--green-soft)}.model-v0-section-icon{width:38px;height:38px;display:grid;place-items:center;border-radius:50%;background:var(--paper);color:var(--green)}.model-v0-rotation-copy{display:flex;flex-direction:column;gap:3px}.model-v0-rotation-copy strong{color:var(--green);font-size:.75rem}.model-v0-rotation-copy span{color:#58776f;font-size:.625rem;line-height:1.55;text-wrap:pretty}.model-v0-key-strip{display:flex;justify-content:flex-end;flex-wrap:wrap;gap:7px}.model-v0-key-strip>div{min-width:145px;display:grid;gap:2px;padding:8px 10px;border:1px solid rgba(44,118,107,.18);border-radius:7px;background:#fbfaf6bd}.model-v0-key-strip span,.model-v0-key-strip small{color:#58776f;font-size:.5rem}.model-v0-key-strip strong{max-width:180px;overflow:hidden;color:var(--green);font-size:.625rem;text-overflow:ellipsis;white-space:nowrap}.model-v0-workspace{display:grid;grid-template-columns:minmax(0,1fr);gap:0;align-items:start;overflow:hidden;border:1px solid var(--line);border-radius:var(--radius-md);background:var(--paper)}.model-v0-filter-panel,.model-v0-catalog,.model-v0-groups{border:0;border-radius:0;background:transparent}.model-v0-filter-panel{padding:21px 22px 23px}.model-v0-panel-heading{display:flex;align-items:flex-start;gap:9px}.model-v0-panel-heading>svg{flex:0 0 auto;margin-top:2px;color:var(--accent-deep)}.model-v0-panel-heading>div{display:flex;flex-direction:column;gap:2px}.model-v0-panel-heading strong{font-size:.875rem}.model-v0-panel-heading small{color:var(--muted);font-size:.75rem;line-height:1.5}.model-v0-step-heading{display:flex;align-items:flex-start;justify-content:space-between;gap:18px}.model-v0-step-heading>div{min-width:0;display:grid;grid-template-columns:32px minmax(0,1fr);align-items:start;gap:11px}.model-v0-step-number{width:32px;height:32px;display:grid;place-items:center;border:1px solid #dba07d;border-radius:50%;background:var(--accent-soft);color:var(--accent-deep);font:600 .75rem IBM Plex Mono,Consolas,monospace}.model-v0-step-heading h2{margin:1px 0 3px;font:600 1.125rem "Noto Serif TC",PMingLiU,serif;letter-spacing:-.015em;line-height:1.35}.model-v0-step-heading p{margin:0;color:var(--muted);font-size:.75rem;line-height:1.55}.model-v0-step-meta{flex:0 0 auto;padding-top:7px;color:var(--muted);font:500 .6875rem IBM Plex Mono,Consolas,monospace}.model-v0-picker-controls{display:grid;grid-template-columns:minmax(220px,.8fr) minmax(0,1.6fr);gap:10px;margin-top:14px}.model-v0-search{height:40px;display:flex;align-items:center;gap:8px;margin:0;padding:0 10px;border:1px solid var(--line);border-radius:7px;background:#f8f6f0;color:var(--muted)}.model-v0-search:focus-within{border-color:var(--accent);background:#fff;box-shadow:0 0 0 3px #e7682a14}.model-v0-search input{width:100%;min-width:0;border:0;outline:0;background:transparent;font-size:.8125rem}.model-v0-provider-filters{min-width:0;display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:4px}.model-v0-provider-filters button{min-width:0;min-height:40px;display:flex;align-items:center;justify-content:space-between;gap:6px;padding:0 9px;border:1px solid transparent;border-radius:7px;background:transparent;color:var(--muted);cursor:pointer;text-align:left;font-size:.75rem}.model-v0-provider-filters button:hover{background:#f5f2ea;color:var(--ink)}.model-v0-provider-filters button.active{background:var(--accent-soft);color:var(--accent-deep);font-weight:700}.model-v0-provider-filters small{font:500 .6875rem IBM Plex Mono,Consolas,monospace}.model-v0-picker-list{max-height:540px;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:7px;margin-top:12px;padding:12px 6px 2px 0;overflow-y:auto;overscroll-behavior:contain;border-top:1px solid var(--line);scrollbar-gutter:stable}.model-v0-picker-list>article{min-width:0;min-height:56px;display:grid;grid-template-columns:auto minmax(0,1fr) auto;align-items:center;gap:10px;padding:7px 8px;border:1px solid var(--line);border-radius:8px;background:#f8f6f0}.model-v0-picker-list>article>span:nth-child(2){min-width:0;display:flex;flex-direction:column;gap:2px}.model-v0-picker-list strong{overflow:hidden;font:600 .8125rem IBM Plex Mono,Consolas,monospace;text-overflow:ellipsis;white-space:nowrap}.model-v0-picker-list small{color:var(--muted);font-size:.6875rem}.model-v0-add-button{min-height:36px;display:inline-flex;align-items:center;justify-content:center;gap:4px;padding:0 11px;border:1px solid #dba07d;border-radius:99px;background:var(--paper);color:var(--accent-deep);cursor:pointer;font-size:.6875rem}.model-v0-add-button:hover{background:var(--accent-soft)}.model-v0-picker-empty{grid-column:1 / -1;min-height:56px;display:flex;align-items:center;justify-content:center;gap:7px;border:1px dashed var(--line-strong);border-radius:8px;color:var(--green);font-size:.75rem}.model-v0-catalog{min-width:0;padding:23px 22px;border-top:1px solid var(--line-strong)}.model-v0-catalog-heading{display:flex;align-items:flex-end;justify-content:space-between;gap:18px;margin-bottom:13px}.model-v0-catalog-heading h2{margin:5px 0 3px;font:600 1.3125rem "Noto Serif TC",PMingLiU,serif}.model-v0-catalog-heading p{margin:0;color:var(--muted);font-size:.75rem}.model-v0-catalog-heading>span{color:var(--muted);font:500 .6875rem IBM Plex Mono,Consolas,monospace}.model-v0-model-list{border-top:0}.model-v0-model{border-bottom:1px solid var(--line)}.model-v0-model:last-child{border-bottom:0}.model-v0-model.is-enabled{background:transparent}.model-v0-model-summary{min-height:66px;display:flex;align-items:center;gap:10px}.model-v0-model-main{min-width:0;flex:1;min-height:58px;display:grid;grid-template-columns:auto minmax(0,1fr) auto;align-items:center;gap:11px;padding:6px;border:0;background:transparent;text-align:left;cursor:pointer}.model-v0-provider-mark{width:32px;height:32px;display:grid;place-items:center;border:1px solid var(--line);border-radius:50%;background:var(--paper);color:var(--accent-deep);font:600 .625rem "Noto Serif TC",serif}.model-v0-model-main>span:nth-child(2){min-width:0;display:flex;flex-direction:column;gap:2px}.model-v0-model-main strong{overflow:hidden;font:600 .8125rem IBM Plex Mono,Consolas,monospace;text-overflow:ellipsis;white-space:nowrap}.model-v0-model-main small{color:var(--muted);font-size:.6875rem}.model-v0-model-main>svg{color:var(--muted);transition:transform .16s ease}.model-v0-enable-button{min-width:84px;min-height:38px;display:inline-flex;align-items:center;justify-content:center;gap:5px;padding:0 10px;border:1px solid var(--line-strong);border-radius:99px;background:var(--paper);color:var(--muted);cursor:pointer;font-size:.6875rem}.model-v0-enable-button:hover{border-color:#db946d;color:var(--accent-deep)}.model-v0-model-detail{margin:0 6px 14px 48px;padding:15px;border:1px solid #bfd4cd;border-radius:var(--radius-sm);background:#f2f8f5;animation:reveal .18s ease-out}.model-v0-model-detail-heading{display:flex;align-items:flex-start;justify-content:space-between;gap:12px}.model-v0-model-detail-heading>div{display:flex;align-items:flex-start;gap:8px;color:var(--green)}.model-v0-model-detail-heading>div>span{display:flex;flex-direction:column;gap:2px}.model-v0-model-detail-heading strong{font-size:.75rem}.model-v0-model-detail-heading small{color:#58776f;font-size:.6875rem;line-height:1.5}.model-v0-source-badge{flex:0 0 auto;padding:5px 8px;border:1px solid #bfd4cd;border-radius:99px;color:var(--green);font-size:.6875rem}.model-v0-quota-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:8px;margin-top:13px}.model-v0-quota-grid label{display:flex;flex-direction:column;gap:5px}.model-v0-quota-grid label>span{display:flex;align-items:baseline;justify-content:space-between;gap:5px}.model-v0-quota-grid strong{font-size:.75rem}.model-v0-quota-grid small{color:var(--muted);font-size:.6875rem}.model-v0-quota-grid input{width:100%;height:42px;min-width:0;padding:0 10px;border:1px solid #bfd4cd;border-radius:6px;background:#fff;color:var(--ink);font:400 .8125rem Noto Sans TC,Microsoft JhengHei,sans-serif}.model-v0-quota-grid input::placeholder{color:#8c918d;font:inherit}.model-v0-quota-grid input:focus{outline:0;border-color:var(--green);box-shadow:0 0 0 3px #2c766b14}.model-v0-limit-action{display:flex;align-items:center;justify-content:space-between;gap:14px;margin-top:12px;padding:10px 11px;border:1px solid rgba(44,118,107,.18);border-radius:7px;background:#fbfaf6b8}.model-v0-limit-action>span{display:flex;align-items:center;gap:7px;color:var(--green);font-size:.75rem}.model-v0-limit-action select,.model-v0-group-action select{min-width:min(250px,54%);height:42px;padding:0 10px;border:1px solid #bfd4cd;border-radius:6px;background:#fff;color:var(--ink);font:400 .8125rem Noto Sans TC,Microsoft JhengHei,sans-serif}.model-v0-usage-line{display:flex;flex-wrap:wrap;gap:7px 18px;margin-top:10px;color:#58776f;font-size:.6875rem}.model-v0-usage-line strong{color:var(--green);font-family:IBM Plex Mono,Consolas,monospace}.model-v0-limit-outcome{display:flex;align-items:center;gap:7px;margin-top:10px;padding-top:10px;border-top:1px solid rgba(44,118,107,.16);color:#58776f;font-size:.6875rem;line-height:1.5}.model-v0-more-note{margin:12px 0 0;color:var(--muted);font-size:.6875rem;text-align:center}.model-v0-empty{min-height:170px;display:grid;place-items:center;align-content:center;gap:5px;color:var(--muted)}.model-v0-empty strong{color:var(--ink);font-size:.875rem}.model-v0-empty span{font-size:.75rem}.model-v0-groups{margin-top:0;padding:23px 22px;border-top:1px solid var(--line-strong)}.model-v0-tutors{padding:23px 22px;border-top:1px solid var(--line-strong)}.model-v0-tutor-settings .settings-toolbar{margin:18px 0 12px}.model-v0-tutor-settings .tutor-settings-list{margin-bottom:0}.model-v0-groups-heading{display:flex;align-items:center;justify-content:space-between;gap:18px}.model-v0-group-list{display:grid;gap:7px;margin-top:13px}.model-v0-group-list>article{min-height:58px;display:grid;grid-template-columns:auto minmax(0,1fr) auto;align-items:center;gap:11px;padding:9px 11px;border:1px solid var(--line);border-radius:7px;background:#f8f6f0}.model-v0-group-list>article:not(.model-v0-group-card)>div{display:flex;flex-direction:column;gap:2px}.model-v0-group-list>article strong{font-size:.8125rem}.model-v0-group-list>article small,.model-v0-group-list>article>span:last-child{color:var(--muted);font-size:.6875rem}.model-v0-group-list>p{margin:0;padding:15px;border-radius:7px;background:#f5f2ea;color:var(--muted);font-size:.75rem}.model-v0-group-list>article.model-v0-group-card{min-height:0;display:block;padding:0;overflow:hidden;background:#f8f6f0}.model-v0-group-summary{min-height:68px;display:flex;flex-direction:row;align-items:center;gap:7px;padding:6px 9px 6px 11px}.model-v0-group-summary>button:first-child{min-width:0;flex:1;min-height:54px;display:grid;grid-template-columns:auto minmax(160px,1fr) minmax(120px,auto) auto;align-items:center;gap:12px;padding:5px;border:0;background:transparent;text-align:left;cursor:pointer}.model-v0-group-summary>button:first-child>span:nth-child(2){min-width:0;display:flex;flex-direction:column;gap:2px}.model-v0-group-summary>button:first-child>span:nth-child(3){color:var(--muted);font-size:var(--type-caption);text-align:right;white-space:nowrap}.model-v0-group-summary svg.rotated{transform:rotate(180deg)}.model-v0-group-editor{margin:0 12px 13px;padding:15px;border:1px solid #bfd4cd;border-radius:var(--radius-sm);background:#f2f8f5}.model-v0-group-name{display:flex;flex-direction:column;gap:6px;color:var(--muted);font-size:.6875rem}.model-v0-group-name input{height:42px;padding:0 10px;border:1px solid #bfd4cd;border-radius:6px;background:#fff;color:var(--ink);font-size:.8125rem}.model-v0-group-models{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:5px;margin:12px 0 0;padding:12px;border:1px solid rgba(44,118,107,.18);border-radius:7px}.model-v0-group-models legend{padding:0 5px;color:#58776f;font-size:.6875rem}.model-v0-group-models label{min-width:0;min-height:36px;display:flex;align-items:center;gap:7px;padding:5px 7px;border-radius:5px;background:#fff9;color:var(--muted);cursor:pointer;font-size:.6875rem}.model-v0-group-models input{accent-color:var(--accent)}.model-v0-group-models span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.model-v0-group-models>small{grid-column:1 / -1;color:var(--muted);font-size:.6875rem}.model-v0-group-draft{display:grid;grid-template-columns:minmax(200px,.75fr) minmax(0,1.25fr);gap:18px;margin-top:13px;padding:15px;border:1px solid #bfd4cd;border-radius:var(--radius-sm);background:#f2f8f5}.model-v0-group-draft label{display:flex;flex-direction:column;gap:5px;color:var(--muted);font-size:.6875rem}.model-v0-group-draft input{height:42px;padding:0 10px;border:1px solid #bfd4cd;border-radius:6px;background:#fff;color:var(--ink);font:400 .8125rem Noto Sans TC,Microsoft JhengHei,sans-serif}.model-v0-group-draft p{margin:8px 0 0;color:#58776f;font-size:.6875rem;line-height:1.55}.model-v0-group-action{display:flex;flex-direction:column;gap:5px;margin-top:11px;color:var(--muted);font-size:.6875rem}.model-v0-group-action select{width:100%;min-width:0}.model-v0-group-draft .model-v0-quota-grid{margin-top:0}.model-v0-footer-note{display:flex;align-items:center;justify-content:center;gap:7px;padding:16px;color:var(--muted);font-size:.6875rem}.api-settings-heading h2,.data-management-heading h2,.model-v0-catalog-heading h2{margin-bottom:5px;font:600 var(--type-section-title)/1.35 var(--font-heading);letter-spacing:-.015em}.model-v0-step-heading h2{margin:1px 0 3px;font:600 var(--type-subsection-title)/1.35 var(--font-heading);letter-spacing:-.015em}.api-settings-heading p,.data-management-heading p,.model-v0-catalog-heading p,.model-v0-step-heading p{color:var(--muted);font-size:var(--type-supporting);line-height:1.6}@media(max-width:900px){.model-v0-rotation{grid-template-columns:auto minmax(0,1fr)}.model-v0-key-strip{grid-column:1 / -1;justify-content:flex-start}.model-v0-workspace{grid-template-columns:1fr}.model-v0-filter-panel{position:static}.model-v0-picker-controls{grid-template-columns:1fr}.model-v0-provider-filters{grid-template-columns:repeat(3,minmax(0,1fr))}}@media(max-width:760px){.model-v0-picker-list{grid-template-columns:1fr}}@media(max-width:620px){.model-v0-hero{align-items:stretch;flex-direction:column;padding:20px}.model-v0-hero-status{min-width:0}.model-v0-rotation{grid-template-columns:1fr}.model-v0-section-icon{display:none}.model-v0-key-strip{grid-column:auto}.model-v0-key-strip>div{width:100%}.model-v0-provider-filters{grid-template-columns:1fr 1fr}.model-v0-picker-list{grid-template-columns:1fr}.model-v0-catalog,.model-v0-groups,.model-v0-tutors{padding:16px}.model-v0-catalog-heading{align-items:flex-start;flex-direction:column;gap:8px}.model-v0-model-summary{align-items:stretch;flex-direction:column;gap:0;padding:7px 0 10px}.model-v0-model-main{width:100%}.model-v0-enable-button{width:calc(100% - 12px);margin:0 6px;min-height:44px}.model-v0-model-detail{margin-left:6px}.model-v0-model-detail-heading{flex-direction:column}.model-v0-quota-grid{grid-template-columns:1fr 1fr}.model-v0-limit-action{align-items:stretch;flex-direction:column}.model-v0-limit-action select{width:100%;min-width:0}.model-v0-groups-heading{align-items:stretch;flex-direction:column}.model-v0-group-draft,.model-v0-group-models{grid-template-columns:1fr}.model-v0-group-summary{align-items:flex-start}.model-v0-group-summary>button:first-child{grid-template-columns:auto minmax(0,1fr) auto;gap:8px 10px}.model-v0-group-summary>button:first-child>span:nth-child(3){grid-column:2;text-align:left;white-space:normal}.model-v0-group-summary>button:first-child>svg{grid-column:3;grid-row:1 / span 2}}.history-search{min-height:42px;display:flex;align-items:center;gap:8px;margin:7px 14px 3px;padding:0 10px;border:1px solid var(--line);border-radius:var(--radius-sm);background:#fff;color:var(--muted)}.history-search:focus-within{border-color:#b06c48;box-shadow:0 0 0 3px #e7682a17}.history-search input{min-width:0;flex:1;border:0;outline:0;background:transparent;font-size:var(--type-body)}.history-search button{width:28px;height:28px;display:grid;place-items:center;padding:0;border:0;border-radius:5px;background:transparent;cursor:pointer}.history-item{position:relative;min-height:62px;display:grid;grid-template-columns:minmax(0,1fr) 38px;align-items:center;border-bottom:1px solid var(--line)}.history-item:hover,.history-item.active{background:#f0ede5}.history-open-button{min-width:0;min-height:61px;display:flex;align-items:center;justify-content:space-between;gap:12px;padding:9px 8px 9px 11px;border:0;background:transparent;text-align:left;cursor:pointer}.history-open-button>span{min-width:0;display:flex;flex-direction:column;gap:4px}.history-open-button strong,.history-open-button small{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.history-open-button strong{font-size:.75rem}.history-open-button small{color:var(--muted);font-size:.5625rem}.history-open-button em{overflow:hidden;color:var(--muted);font-size:.5625rem;font-style:normal;text-overflow:ellipsis;white-space:nowrap}.history-delete-button{width:34px;height:34px;display:grid;place-items:center;padding:0;border:0;border-radius:7px;background:transparent;color:var(--muted);cursor:pointer}.history-delete-button:hover{background:#fae4df;color:#9e3f2e}.history-delete-confirm{grid-column:1 / -1;display:flex;justify-content:flex-end;gap:6px;padding:0 8px 8px}.history-delete-confirm button{min-height:30px;padding:0 9px;border:1px solid var(--line);border-radius:6px;background:#fff;cursor:pointer;font-size:.5625rem}.history-delete-confirm button:first-child{border-color:#b65341;background:#b65341;color:#fff}.data-management-panel{margin-top:28px;padding:25px;border:1px solid var(--line);border-radius:var(--radius-md);background:var(--paper)}.data-management-heading{display:flex;gap:16px}.data-management-heading h2{margin-bottom:5px;font:600 1.3125rem "Noto Serif TC",PMingLiU,serif}.data-management-heading p{margin:0;color:var(--muted);font-size:.6875rem}.data-management-actions{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:18px}.data-management-actions article{min-width:0;display:grid;grid-template-columns:28px minmax(0,1fr) auto;align-items:center;gap:12px;padding:15px;border:1px solid var(--line);border-radius:var(--radius-sm);background:#f7f4ed}.data-management-actions article>svg{color:var(--green)}.data-management-actions article>div{min-width:0;display:flex;flex-direction:column;gap:4px}.data-management-actions strong{font-size:.6875rem}.data-management-actions span{color:var(--muted);font-size:.5625rem;line-height:1.5}.data-management-actions small{color:var(--faint);font-size:.5rem}.data-backup-buttons{flex:0 0 auto;min-width:116px;align-items:stretch!important;gap:7px!important}.data-backup-buttons .outline-button{white-space:nowrap}.data-import-button{cursor:pointer}.data-import-button input{position:absolute;width:1px;height:1px;opacity:0;pointer-events:none}.data-import-status{margin:12px 0 0;padding:10px 12px;border-radius:7px;font-size:.6875rem;line-height:1.5}.data-import-status.success{background:var(--green-soft);color:var(--green)}.data-import-status.error{background:#fcf2ef;color:#963d2e}.data-management-actions .danger-zone{border-color:#e3c2ba;background:#fcf2ef}.data-management-actions .danger-zone>svg{color:#a64635}.danger-button{min-height:40px;display:inline-flex;align-items:center;justify-content:center;gap:7px;padding:0 13px;border:1px solid #a64635;border-radius:var(--radius-sm);background:#a64635;color:#fff;cursor:pointer;font-size:.75rem;font-weight:700}.danger-button:hover:not(:disabled){background:#833327}.delete-data-dialog{position:absolute;inset:18vh max(16px,calc(50vw - 270px)) auto;padding:0 20px 20px;border:1px solid #e0b8af;border-radius:var(--radius-md);background:var(--paper);box-shadow:0 24px 64px #20252238}.delete-data-dialog>header{min-height:60px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line)}.delete-data-dialog>header>div{display:flex;align-items:center;gap:9px;color:#963d2e}.delete-data-dialog>p{margin:18px 0;color:var(--muted);font-size:.6875rem;line-height:1.7}.delete-data-dialog>label{display:flex;flex-direction:column;gap:7px;color:var(--muted);font-size:.5625rem}.delete-data-dialog input{height:42px;padding:0 11px;border:1px solid var(--line);border-radius:7px;background:#fff}.delete-data-dialog>footer{display:flex;justify-content:flex-end;gap:8px;margin-top:18px}@media(max-width:960px){.data-management-actions{grid-template-columns:1fr}}@media(max-width:980px){.topbar.tutor-route-topbar{display:none}.chat-workspace.has-integrated-menu{height:100dvh}}@media(max-width:720px){.home-search-area{min-width:0;flex:1;width:auto}.global-search-results{width:min(430px,calc(100vw - 28px))}.topbar-spacer{flex:1}.topbar-actions{gap:7px}.group-model-options{grid-template-columns:1fr}.data-management-panel{padding:19px}.data-management-actions article{grid-template-columns:24px minmax(0,1fr)}.data-management-actions article>button{grid-column:1 / -1;width:100%}.data-management-actions article>.data-backup-buttons{grid-column:1 / -1;width:100%;display:grid;grid-template-columns:1fr 1fr}.data-management-actions article>.data-backup-buttons .outline-button{width:100%}.delete-data-dialog{inset:12vh 12px auto}.key-usage-line{align-items:flex-start;flex-direction:column}.key-usage-line span+span{padding-left:0;border-left:0}.shared-key-readout{min-height:58px}}
