@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:"0.17.0"}.katex .katex-mathml{border:0;-webkit-clip-path:inset(50%);clip-path:inset(50%);height:1px;overflow:hidden;padding:0;position:absolute;width:1px}.katex .katex-html>.newline{display:block}.katex .base{position:relative;white-space:nowrap;width:-webkit-min-content;width:-moz-min-content;width:min-content}.katex .base,.katex .strut{display:inline-block}.katex .textbf{font-weight:700}.katex .textit{font-style:italic}.katex .textrm{font-family:KaTeX_Main}.katex .textsf{font-family:KaTeX_SansSerif}.katex .texttt{font-family:KaTeX_Typewriter}.katex .mathnormal{font-family:KaTeX_Math;font-style:italic}.katex .mathit{font-family:KaTeX_Main;font-style:italic}.katex .mathrm{font-style:normal}.katex .mathbf{font-family:KaTeX_Main;font-weight:700}.katex .boldsymbol{font-family:KaTeX_Math;font-style:italic;font-weight:700}.katex .amsrm,.katex .mathbb,.katex .textbb{font-family:KaTeX_AMS}.katex .mathcal{font-family:KaTeX_Caligraphic}.katex .mathfrak,.katex .textfrak{font-family:KaTeX_Fraktur}.katex .mathboldfrak,.katex .textboldfrak{font-family:KaTeX_Fraktur;font-weight:700}.katex .mathtt{font-family:KaTeX_Typewriter}.katex .mathscr,.katex .textscr{font-family:KaTeX_Script}.katex .mathsf,.katex .textsf{font-family:KaTeX_SansSerif}.katex .mathboldsf,.katex .textboldsf{font-family:KaTeX_SansSerif;font-weight:700}.katex .mathitsf,.katex .mathsfit,.katex .textitsf{font-family:KaTeX_SansSerif;font-style:italic}.katex .mainrm{font-family:KaTeX_Main;font-style:normal}.katex .vlist-t{border-collapse:collapse;display:inline-table;table-layout:fixed}.katex .vlist-r{display:table-row}.katex .vlist{display:table-cell;position:relative;vertical-align:bottom}.katex .vlist>span{display:block;height:0;position:relative}.katex .vlist>span>span{display:inline-block}.katex .vlist>span>.pstrut{overflow:hidden;width:0}.katex .vlist-t2{margin-right:-2px}.katex .vlist-s{display:table-cell;font-size:1px;min-width:2px;vertical-align:bottom;width:2px}.katex .vbox{align-items:baseline;display:inline-flex;flex-direction:column}.katex .hbox{width:100%}.katex .hbox,.katex .thinbox{display:inline-flex;flex-direction:row}.katex .thinbox{max-width:0;width:0}.katex .msupsub{text-align:left}.katex .mfrac>span>span{text-align:center}.katex .mfrac .frac-line{border-bottom-style:solid;display:inline-block;width:100%}.katex .hdashline,.katex .hline,.katex .mfrac .frac-line,.katex .overline .overline-line,.katex .rule,.katex .underline .underline-line{min-height:1px}.katex .mspace{display:inline-block}.katex .smash{display:inline;line-height:0}.katex .clap,.katex .llap,.katex .rlap{position:relative;width:0}.katex .clap>.inner,.katex .llap>.inner,.katex .rlap>.inner{position:absolute}.katex .clap>.fix,.katex .llap>.fix,.katex .rlap>.fix{display:inline-block}.katex .llap>.inner{right:0}.katex .clap>.inner,.katex .rlap>.inner{left:0}.katex .clap>.inner>span{margin-left:-50%;margin-right:50%}.katex .rule{border:0 solid;display:inline-block;position:relative}.katex .hline,.katex .overline .overline-line,.katex .underline .underline-line{border-bottom-style:solid;display:inline-block;width:100%}.katex .hdashline{border-bottom-style:dashed;display:inline-block;width:100%}.katex .sqrt>.root{margin-left:.2777777778em;margin-right:-.5555555556em}.katex .fontsize-ensurer.reset-size1.size1,.katex .sizing.reset-size1.size1{font-size:1em}.katex .fontsize-ensurer.reset-size1.size2,.katex .sizing.reset-size1.size2{font-size:1.2em}.katex .fontsize-ensurer.reset-size1.size3,.katex .sizing.reset-size1.size3{font-size:1.4em}.katex .fontsize-ensurer.reset-size1.size4,.katex .sizing.reset-size1.size4{font-size:1.6em}.katex .fontsize-ensurer.reset-size1.size5,.katex .sizing.reset-size1.size5{font-size:1.8em}.katex .fontsize-ensurer.reset-size1.size6,.katex .sizing.reset-size1.size6{font-size:2em}.katex .fontsize-ensurer.reset-size1.size7,.katex .sizing.reset-size1.size7{font-size:2.4em}.katex .fontsize-ensurer.reset-size1.size8,.katex .sizing.reset-size1.size8{font-size:2.88em}.katex .fontsize-ensurer.reset-size1.size9,.katex .sizing.reset-size1.size9{font-size:3.456em}.katex .fontsize-ensurer.reset-size1.size10,.katex .sizing.reset-size1.size10{font-size:4.148em}.katex .fontsize-ensurer.reset-size1.size11,.katex .sizing.reset-size1.size11{font-size:4.976em}.katex .fontsize-ensurer.reset-size2.size1,.katex .sizing.reset-size2.size1{font-size:.8333333333em}.katex .fontsize-ensurer.reset-size2.size2,.katex .sizing.reset-size2.size2{font-size:1em}.katex .fontsize-ensurer.reset-size2.size3,.katex .sizing.reset-size2.size3{font-size:1.1666666667em}.katex .fontsize-ensurer.reset-size2.size4,.katex .sizing.reset-size2.size4{font-size:1.3333333333em}.katex .fontsize-ensurer.reset-size2.size5,.katex .sizing.reset-size2.size5{font-size:1.5em}.katex .fontsize-ensurer.reset-size2.size6,.katex .sizing.reset-size2.size6{font-size:1.6666666667em}.katex .fontsize-ensurer.reset-size2.size7,.katex .sizing.reset-size2.size7{font-size:2em}.katex .fontsize-ensurer.reset-size2.size8,.katex .sizing.reset-size2.size8{font-size:2.4em}.katex .fontsize-ensurer.reset-size2.size9,.katex .sizing.reset-size2.size9{font-size:2.88em}.katex .fontsize-ensurer.reset-size2.size10,.katex .sizing.reset-size2.size10{font-size:3.4566666667em}.katex .fontsize-ensurer.reset-size2.size11,.katex .sizing.reset-size2.size11{font-size:4.1466666667em}.katex .fontsize-ensurer.reset-size3.size1,.katex .sizing.reset-size3.size1{font-size:.7142857143em}.katex .fontsize-ensurer.reset-size3.size2,.katex .sizing.reset-size3.size2{font-size:.8571428571em}.katex .fontsize-ensurer.reset-size3.size3,.katex .sizing.reset-size3.size3{font-size:1em}.katex .fontsize-ensurer.reset-size3.size4,.katex .sizing.reset-size3.size4{font-size:1.1428571429em}.katex .fontsize-ensurer.reset-size3.size5,.katex .sizing.reset-size3.size5{font-size:1.2857142857em}.katex .fontsize-ensurer.reset-size3.size6,.katex .sizing.reset-size3.size6{font-size:1.4285714286em}.katex .fontsize-ensurer.reset-size3.size7,.katex .sizing.reset-size3.size7{font-size:1.7142857143em}.katex .fontsize-ensurer.reset-size3.size8,.katex .sizing.reset-size3.size8{font-size:2.0571428571em}.katex .fontsize-ensurer.reset-size3.size9,.katex .sizing.reset-size3.size9{font-size:2.4685714286em}.katex .fontsize-ensurer.reset-size3.size10,.katex .sizing.reset-size3.size10{font-size:2.9628571429em}.katex .fontsize-ensurer.reset-size3.size11,.katex .sizing.reset-size3.size11{font-size:3.5542857143em}.katex .fontsize-ensurer.reset-size4.size1,.katex .sizing.reset-size4.size1{font-size:.625em}.katex .fontsize-ensurer.reset-size4.size2,.katex .sizing.reset-size4.size2{font-size:.75em}.katex .fontsize-ensurer.reset-size4.size3,.katex .sizing.reset-size4.size3{font-size:.875em}.katex .fontsize-ensurer.reset-size4.size4,.katex .sizing.reset-size4.size4{font-size:1em}.katex .fontsize-ensurer.reset-size4.size5,.katex .sizing.reset-size4.size5{font-size:1.125em}.katex .fontsize-ensurer.reset-size4.size6,.katex .sizing.reset-size4.size6{font-size:1.25em}.katex .fontsize-ensurer.reset-size4.size7,.katex .sizing.reset-size4.size7{font-size:1.5em}.katex .fontsize-ensurer.reset-size4.size8,.katex .sizing.reset-size4.size8{font-size:1.8em}.katex .fontsize-ensurer.reset-size4.size9,.katex .sizing.reset-size4.size9{font-size:2.16em}.katex .fontsize-ensurer.reset-size4.size10,.katex .sizing.reset-size4.size10{font-size:2.5925em}.katex .fontsize-ensurer.reset-size4.size11,.katex .sizing.reset-size4.size11{font-size:3.11em}.katex .fontsize-ensurer.reset-size5.size1,.katex .sizing.reset-size5.size1{font-size:.5555555556em}.katex .fontsize-ensurer.reset-size5.size2,.katex .sizing.reset-size5.size2{font-size:.6666666667em}.katex .fontsize-ensurer.reset-size5.size3,.katex .sizing.reset-size5.size3{font-size:.7777777778em}.katex .fontsize-ensurer.reset-size5.size4,.katex .sizing.reset-size5.size4{font-size:.8888888889em}.katex .fontsize-ensurer.reset-size5.size5,.katex .sizing.reset-size5.size5{font-size:1em}.katex .fontsize-ensurer.reset-size5.size6,.katex .sizing.reset-size5.size6{font-size:1.1111111111em}.katex .fontsize-ensurer.reset-size5.size7,.katex .sizing.reset-size5.size7{font-size:1.3333333333em}.katex .fontsize-ensurer.reset-size5.size8,.katex .sizing.reset-size5.size8{font-size:1.6em}.katex .fontsize-ensurer.reset-size5.size9,.katex .sizing.reset-size5.size9{font-size:1.92em}.katex .fontsize-ensurer.reset-size5.size10,.katex .sizing.reset-size5.size10{font-size:2.3044444444em}.katex .fontsize-ensurer.reset-size5.size11,.katex .sizing.reset-size5.size11{font-size:2.7644444444em}.katex .fontsize-ensurer.reset-size6.size1,.katex .sizing.reset-size6.size1{font-size:.5em}.katex .fontsize-ensurer.reset-size6.size2,.katex .sizing.reset-size6.size2{font-size:.6em}.katex .fontsize-ensurer.reset-size6.size3,.katex .sizing.reset-size6.size3{font-size:.7em}.katex .fontsize-ensurer.reset-size6.size4,.katex .sizing.reset-size6.size4{font-size:.8em}.katex .fontsize-ensurer.reset-size6.size5,.katex .sizing.reset-size6.size5{font-size:.9em}.katex .fontsize-ensurer.reset-size6.size6,.katex .sizing.reset-size6.size6{font-size:1em}.katex .fontsize-ensurer.reset-size6.size7,.katex .sizing.reset-size6.size7{font-size:1.2em}.katex .fontsize-ensurer.reset-size6.size8,.katex .sizing.reset-size6.size8{font-size:1.44em}.katex .fontsize-ensurer.reset-size6.size9,.katex .sizing.reset-size6.size9{font-size:1.728em}.katex .fontsize-ensurer.reset-size6.size10,.katex .sizing.reset-size6.size10{font-size:2.074em}.katex .fontsize-ensurer.reset-size6.size11,.katex .sizing.reset-size6.size11{font-size:2.488em}.katex .fontsize-ensurer.reset-size7.size1,.katex .sizing.reset-size7.size1{font-size:.4166666667em}.katex .fontsize-ensurer.reset-size7.size2,.katex .sizing.reset-size7.size2{font-size:.5em}.katex .fontsize-ensurer.reset-size7.size3,.katex .sizing.reset-size7.size3{font-size:.5833333333em}.katex .fontsize-ensurer.reset-size7.size4,.katex .sizing.reset-size7.size4{font-size:.6666666667em}.katex .fontsize-ensurer.reset-size7.size5,.katex .sizing.reset-size7.size5{font-size:.75em}.katex .fontsize-ensurer.reset-size7.size6,.katex .sizing.reset-size7.size6{font-size:.8333333333em}.katex .fontsize-ensurer.reset-size7.size7,.katex .sizing.reset-size7.size7{font-size:1em}.katex .fontsize-ensurer.reset-size7.size8,.katex .sizing.reset-size7.size8{font-size:1.2em}.katex .fontsize-ensurer.reset-size7.size9,.katex .sizing.reset-size7.size9{font-size:1.44em}.katex .fontsize-ensurer.reset-size7.size10,.katex .sizing.reset-size7.size10{font-size:1.7283333333em}.katex .fontsize-ensurer.reset-size7.size11,.katex .sizing.reset-size7.size11{font-size:2.0733333333em}.katex .fontsize-ensurer.reset-size8.size1,.katex .sizing.reset-size8.size1{font-size:.3472222222em}.katex .fontsize-ensurer.reset-size8.size2,.katex .sizing.reset-size8.size2{font-size:.4166666667em}.katex .fontsize-ensurer.reset-size8.size3,.katex .sizing.reset-size8.size3{font-size:.4861111111em}.katex .fontsize-ensurer.reset-size8.size4,.katex .sizing.reset-size8.size4{font-size:.5555555556em}.katex .fontsize-ensurer.reset-size8.size5,.katex .sizing.reset-size8.size5{font-size:.625em}.katex .fontsize-ensurer.reset-size8.size6,.katex .sizing.reset-size8.size6{font-size:.6944444444em}.katex .fontsize-ensurer.reset-size8.size7,.katex .sizing.reset-size8.size7{font-size:.8333333333em}.katex .fontsize-ensurer.reset-size8.size8,.katex .sizing.reset-size8.size8{font-size:1em}.katex .fontsize-ensurer.reset-size8.size9,.katex .sizing.reset-size8.size9{font-size:1.2em}.katex .fontsize-ensurer.reset-size8.size10,.katex .sizing.reset-size8.size10{font-size:1.4402777778em}.katex .fontsize-ensurer.reset-size8.size11,.katex .sizing.reset-size8.size11{font-size:1.7277777778em}.katex .fontsize-ensurer.reset-size9.size1,.katex .sizing.reset-size9.size1{font-size:.2893518519em}.katex .fontsize-ensurer.reset-size9.size2,.katex .sizing.reset-size9.size2{font-size:.3472222222em}.katex .fontsize-ensurer.reset-size9.size3,.katex .sizing.reset-size9.size3{font-size:.4050925926em}.katex .fontsize-ensurer.reset-size9.size4,.katex .sizing.reset-size9.size4{font-size:.462962963em}.katex .fontsize-ensurer.reset-size9.size5,.katex .sizing.reset-size9.size5{font-size:.5208333333em}.katex .fontsize-ensurer.reset-size9.size6,.katex .sizing.reset-size9.size6{font-size:.5787037037em}.katex .fontsize-ensurer.reset-size9.size7,.katex .sizing.reset-size9.size7{font-size:.6944444444em}.katex .fontsize-ensurer.reset-size9.size8,.katex .sizing.reset-size9.size8{font-size:.8333333333em}.katex .fontsize-ensurer.reset-size9.size9,.katex .sizing.reset-size9.size9{font-size:1em}.katex .fontsize-ensurer.reset-size9.size10,.katex .sizing.reset-size9.size10{font-size:1.2002314815em}.katex .fontsize-ensurer.reset-size9.size11,.katex .sizing.reset-size9.size11{font-size:1.4398148148em}.katex .fontsize-ensurer.reset-size10.size1,.katex .sizing.reset-size10.size1{font-size:.2410800386em}.katex .fontsize-ensurer.reset-size10.size2,.katex .sizing.reset-size10.size2{font-size:.2892960463em}.katex .fontsize-ensurer.reset-size10.size3,.katex .sizing.reset-size10.size3{font-size:.337512054em}.katex .fontsize-ensurer.reset-size10.size4,.katex .sizing.reset-size10.size4{font-size:.3857280617em}.katex .fontsize-ensurer.reset-size10.size5,.katex .sizing.reset-size10.size5{font-size:.4339440694em}.katex .fontsize-ensurer.reset-size10.size6,.katex .sizing.reset-size10.size6{font-size:.4821600771em}.katex .fontsize-ensurer.reset-size10.size7,.katex .sizing.reset-size10.size7{font-size:.5785920926em}.katex .fontsize-ensurer.reset-size10.size8,.katex .sizing.reset-size10.size8{font-size:.6943105111em}.katex .fontsize-ensurer.reset-size10.size9,.katex .sizing.reset-size10.size9{font-size:.8331726133em}.katex .fontsize-ensurer.reset-size10.size10,.katex .sizing.reset-size10.size10{font-size:1em}.katex .fontsize-ensurer.reset-size10.size11,.katex .sizing.reset-size10.size11{font-size:1.1996142719em}.katex .fontsize-ensurer.reset-size11.size1,.katex .sizing.reset-size11.size1{font-size:.2009646302em}.katex .fontsize-ensurer.reset-size11.size2,.katex .sizing.reset-size11.size2{font-size:.2411575563em}.katex .fontsize-ensurer.reset-size11.size3,.katex .sizing.reset-size11.size3{font-size:.2813504823em}.katex .fontsize-ensurer.reset-size11.size4,.katex .sizing.reset-size11.size4{font-size:.3215434084em}.katex .fontsize-ensurer.reset-size11.size5,.katex .sizing.reset-size11.size5{font-size:.3617363344em}.katex .fontsize-ensurer.reset-size11.size6,.katex .sizing.reset-size11.size6{font-size:.4019292605em}.katex .fontsize-ensurer.reset-size11.size7,.katex .sizing.reset-size11.size7{font-size:.4823151125em}.katex .fontsize-ensurer.reset-size11.size8,.katex .sizing.reset-size11.size8{font-size:.578778135em}.katex .fontsize-ensurer.reset-size11.size9,.katex .sizing.reset-size11.size9{font-size:.6945337621em}.katex .fontsize-ensurer.reset-size11.size10,.katex .sizing.reset-size11.size10{font-size:.8336012862em}.katex .fontsize-ensurer.reset-size11.size11,.katex .sizing.reset-size11.size11{font-size:1em}.katex .delimsizing.size1{font-family:KaTeX_Size1}.katex .delimsizing.size2{font-family:KaTeX_Size2}.katex .delimsizing.size3{font-family:KaTeX_Size3}.katex .delimsizing.size4{font-family:KaTeX_Size4}.katex .delimsizing.mult .delim-size1>span{font-family:KaTeX_Size1}.katex .delimsizing.mult .delim-size4>span{font-family:KaTeX_Size4}.katex .nulldelimiter{display:inline-block;width:.12em}.katex .delimcenter,.katex .op-symbol{position:relative}.katex .op-symbol.small-op{font-family:KaTeX_Size1}.katex .op-symbol.large-op{font-family:KaTeX_Size2}.katex .accent>.vlist-t,.katex .op-limits>.vlist-t{text-align:center}.katex .accent .accent-body{position:relative}.katex .accent .accent-body:not(.accent-full){width:0}.katex .overlay{display:block}.katex .mtable .vertical-separator{display:inline-block;min-width:1px}.katex .mtable .arraycolsep{display:inline-block}.katex .mtable .col-align-c>.vlist-t{text-align:center}.katex .mtable .col-align-l>.vlist-t{text-align:left}.katex .mtable .col-align-r>.vlist-t{text-align:right}.katex .svg-align{text-align:left}.katex svg{fill:currentColor;stroke:currentColor;display:block;height:inherit;position:absolute;width:100%}.katex svg path{stroke:none}.katex svg{fill-rule:nonzero;fill-opacity:1;stroke-width:1;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1}.katex img{border-style:none;max-height:none;max-width:none;min-height:0;min-width:0}.katex .stretchy{display:block;overflow:hidden;position:relative;width:100%}.katex .stretchy:after,.katex .stretchy:before{content:""}.katex .hide-tail{overflow:hidden;position:relative;width:100%}.katex .halfarrow-left{left:0;overflow:hidden;position:absolute;width:50.2%}.katex .halfarrow-right{overflow:hidden;position:absolute;right:0;width:50.2%}.katex .brace-left{left:0;overflow:hidden;position:absolute;width:25.1%}.katex .brace-center{left:25%;overflow:hidden;position:absolute;width:50%}.katex .brace-right{overflow:hidden;position:absolute;right:0;width:25.1%}.katex .x-arrow-pad{padding:0 .5em}.katex .cd-arrow-pad{padding:0 .55556em 0 .27778em}.katex .mover,.katex .munder,.katex .x-arrow{text-align:center}.katex .boxpad{padding:0 .3em}.katex .fbox,.katex .fcolorbox{border:.04em solid;box-sizing:border-box}.katex .cancel-pad{padding:0 .2em}.katex .cancel-lap{margin-left:-.2em;margin-right:-.2em}.katex .sout{border-bottom-style:solid;border-bottom-width:.08em}.katex .angl{border-right:.049em solid;border-top:.049em solid;box-sizing:border-box;margin-right:.03889em}.katex .anglpad{padding:0 .03889em}.katex .eqn-num:before{content:"(" counter(katexEqnNo) ")";counter-increment:katexEqnNo}.katex .mml-eqn-num:before{content:"(" counter(mmlEqnNo) ")";counter-increment:mmlEqnNo}.katex .mtr-glue{width:50%}.katex .cd-vert-arrow{display:inline-block;position:relative}.katex .cd-label-left{display:inline-block;position:absolute;right:calc(50% + .3em);text-align:left}.katex .cd-label-right{display:inline-block;left:calc(50% + .3em);position:absolute;text-align:right}.katex-display{display:block;margin:1em 0;text-align:center}.katex-display>.katex{display:block;text-align:center;white-space:nowrap}.katex-display>.katex>.katex-html{display:block;position:relative}.katex-display>.katex>.katex-html>.tag{position:absolute;right:0}.katex-display.leqno>.katex>.katex-html>.tag{left:0;right:auto}.katex-display.fleqn>.katex{padding-left:2em;text-align:left}body{counter-reset:katexEqnNo mmlEqnNo}:root{--paper: #ffffff;--paper-deep: #faf7f1;--card: #ffffff;--card-2: #f4ecdc;--ink: #1d2b3a;--body: #2c3846;--body-dim: #5e6875;--accent: #1d2b3a;--accent-hover: #2b3f55;--accent-soft: rgba(29, 43, 58, .08);--accent-softer: rgba(29, 43, 58, .04);--on-accent: #f4ecdc;--border: rgba(29, 43, 58, .1);--border-strong: rgba(29, 43, 58, .22);--nav-bg: rgba(255, 255, 255, .82);--shadow: 0 1px 2px rgba(29, 43, 58, .05), 0 24px 48px -30px rgba(29, 43, 58, .32);--shadow-soft: 0 1px 2px rgba(29, 43, 58, .04), 0 12px 28px -20px rgba(29, 43, 58, .28);--link: #2f6fca;--del: #b8433a;--ins: #1d7a4b;--r-panel: 24px;--r-card: 20px;--r-win: 14px;--r-inner: 10px;--r-chip: 7px;--serif: "Cormorant Garamond", "Noto Serif JP", "Noto Serif SC", Georgia, serif;--sans: "Inter", system-ui, -apple-system, "Segoe UI", "Noto Sans JP", "Noto Sans SC", sans-serif;--mono: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;--ease: cubic-bezier(.25, .1, .25, 1);--ease-out: cubic-bezier(.22, 1, .36, 1);color-scheme:light}:root:is(:lang(es),:lang(fr),:lang(pt)){--serif: "EB Garamond", Georgia, serif}:root:is(:lang(es),:lang(fr),:lang(pt)) h1{letter-spacing:-.025em}:root:lang(zh){--serif: "Cormorant Garamond", "Noto Serif SC", "Songti SC", serif;--sans: "Inter", system-ui, -apple-system, "PingFang SC", "Noto Sans SC", "Microsoft YaHei", sans-serif}:root:lang(zh-Hant){--serif: "Cormorant Garamond", "Noto Serif TC", "Songti TC", serif;--sans: "Inter", system-ui, -apple-system, "PingFang TC", "Noto Sans TC", "Microsoft JhengHei", sans-serif}:root:lang(ja){--serif: "Cormorant Garamond", "Noto Serif JP", "Hiragino Mincho ProN", "Yu Mincho", serif;--sans: "Inter", system-ui, -apple-system, "Hiragino Sans", "Noto Sans JP", "Yu Gothic", sans-serif}:root:lang(ko){--serif: "Cormorant Garamond", "Noto Serif KR", "AppleMyungjo", serif;--sans: "Inter", system-ui, -apple-system, "Apple SD Gothic Neo", "Noto Sans KR", "Malgun Gothic", sans-serif}*,*:before,*:after{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:72px;-webkit-text-size-adjust:100%}body{margin:0;background:var(--paper);color:var(--body);font-family:var(--sans);font-size:17px;line-height:1.6;-webkit-font-smoothing:antialiased;overflow-x:hidden}img{max-width:100%}p{margin:0}a{color:inherit;text-decoration:none;transition:color .25s var(--ease)}h1,h2,h3,h4{font-family:var(--serif);color:var(--ink);margin:0;font-weight:600}h1,h2,h3,p{overflow-wrap:break-word}h1,h2,h3{text-wrap:balance}.hy{-webkit-text-fill-color:transparent;background:linear-gradient(currentColor,currentColor) no-repeat;background-size:72% var(--hy-h, .066em);background-position:50% var(--hy-y, .655em)}:root:is(:lang(es),:lang(fr),:lang(pt)) .hy{--hy-y: .685em;--hy-h: .07em}p{text-wrap:pretty}:lang(de) :is(h1,h2,h3),:lang(ru) :is(h1,h2,h3){hyphens:auto;hyphenate-limit-chars:12 5 5}:is(:lang(zh),:lang(ja),:lang(ko)) :is(h1,h2,h3,h4){font-weight:700;line-break:strict}:lang(ko) :is(h1,h2,h3,h4){word-break:keep-all;overflow-wrap:anywhere}:lang(ko) :is(p,li,summary span,small){word-break:keep-all;overflow-wrap:anywhere}:root:is(:lang(ja),:lang(zh)) body{word-break:keep-all;overflow-wrap:anywhere;line-break:strict}:lang(ja) :is(h1,h2,h3,h4,.kicker,.label){font-feature-settings:"palt";letter-spacing:.02em}:is(:lang(zh),:lang(ja),:lang(ko)) :is(em,cite):not(.md-page *){font-style:normal}.nw{white-space:nowrap}code,kbd,pre{font-family:var(--mono)}kbd{display:inline-block;font-size:.78em;line-height:1.4;padding:.05em .5em;border-radius:6px;background:var(--card);border:1px solid var(--border-strong);border-bottom-width:2px;color:var(--ink)}:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:6px}.skip-link{position:absolute;left:16px;top:-60px;z-index:200;padding:8px 14px;background:var(--ink);color:var(--paper);border-radius:8px}.skip-link:focus{top:12px}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}.wrap{max-width:1120px;margin:0 auto;padding:0 32px}.wrap.narrow{max-width:820px}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:11px 20px;border-radius:999px;font-weight:600;font-size:.94rem;line-height:1.2;border:1px solid transparent;transition:transform .3s var(--ease),background-color .3s var(--ease),border-color .3s var(--ease),box-shadow .3s var(--ease)}.btn-primary{background:var(--accent);color:var(--on-accent)}.btn-primary:hover{background:var(--accent-hover);transform:translateY(-1px);box-shadow:0 8px 18px -10px #1d2b3a8c}.btn-ghost{border-color:var(--border-strong);color:var(--ink)}.btn-ghost:hover{background:var(--accent-softer);border-color:var(--ink)}.btn:active{transform:scale(.98)}.btn-small{padding:8px 16px;font-size:.86rem}.btn-large{padding:14px 28px;font-size:1rem}.nav{position:sticky;top:0;z-index:50;background:var(--nav-bg);backdrop-filter:blur(16px) saturate(1.2);-webkit-backdrop-filter:blur(16px) saturate(1.2);border-bottom:1px solid var(--border)}.nav-inner{display:flex;align-items:center;gap:28px;height:62px}.brand{display:inline-flex;align-items:center;gap:10px;color:var(--ink);font-family:Cormorant Garamond,Georgia,serif;font-size:1.5rem;font-weight:600;line-height:1}.brand-mark{border-radius:7px;display:block}.nav-links{display:flex;gap:26px;font-size:.9rem;color:var(--body-dim)}.nav-links a{position:relative;padding:4px 0}.nav-links a:hover,.nav-links a.is-current{color:var(--ink)}.nav-links a:after{content:"";position:absolute;left:0;right:0;bottom:-2px;height:1.5px;border-radius:1px;background:var(--ink);opacity:0;transform:scaleX(.4);transition:opacity .35s var(--ease),transform .45s var(--ease-out)}.nav-links a.is-current:after{opacity:1;transform:none}.nav-actions{display:flex;align-items:center;gap:10px;margin-left:auto}.nav-icon{display:inline-flex;align-items:center;justify-content:center;width:36px;height:36px;border-radius:10px;color:var(--body-dim);transition:color .25s var(--ease),background-color .25s var(--ease)}.nav-icon:hover{color:var(--ink);background:var(--accent-softer)}.nav-icon svg{width:18px;height:18px}.lang-switch,.lang-menu{position:relative}.lang-menu summary{list-style:none;display:inline-flex;align-items:center;gap:6px;height:34px;padding:0 11px 0 13px;border:1px solid var(--border-strong);border-radius:999px;font-size:.82rem;font-weight:600;color:var(--ink);cursor:pointer;user-select:none;transition:background-color .25s var(--ease),border-color .25s var(--ease)}.lang-menu summary::-webkit-details-marker{display:none}.lang-menu summary:after{content:"";width:6px;height:6px;border-right:1.5px solid currentColor;border-bottom:1.5px solid currentColor;transform:translateY(-2px) rotate(45deg);transition:transform .3s var(--ease);opacity:.7}.lang-menu[open] summary:after{transform:translateY(1px) rotate(225deg)}.lang-menu summary:hover,.lang-menu[open] summary{background:var(--accent-softer)}.lang-menu ul{position:absolute;right:0;top:calc(100% + 8px);z-index:60;min-width:176px;margin:0;padding:6px;list-style:none;background:var(--card);border:1px solid var(--border);border-radius:14px;box-shadow:var(--shadow);transform-origin:top right;animation:menu-in .24s var(--ease-out)}.lang-menu li a{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:7px 10px;border-radius:8px;font-size:.9rem;color:var(--body);transition:background-color .2s var(--ease)}.lang-menu li a:hover{background:var(--accent-softer);color:var(--ink)}.lang-menu li a[aria-current=page]{color:var(--ink);font-weight:600}.lang-menu li a[aria-current=page]:after{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent)}@keyframes menu-in{0%{opacity:0;transform:scale(.96) translateY(-4px)}to{opacity:1;transform:none}}.hero{padding:96px 0 24px;position:relative}.hero-head{text-align:center;display:flex;flex-direction:column;align-items:center}.hero-icon{width:88px;height:88px;border-radius:20px;filter:drop-shadow(0 12px 20px rgba(21,35,58,.16));margin-bottom:28px}.label{font-size:.78rem;font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:var(--body-dim);margin-bottom:18px}:is(:lang(zh),:lang(ja),:lang(ko)) .label{letter-spacing:.1em}h1{font-size:clamp(2.7rem,7vw,5.4rem);line-height:1.02;letter-spacing:-.015em;max-width:13em}h1 em{font-style:italic;font-weight:500;color:var(--accent)}:is(:lang(zh),:lang(ja),:lang(ko)) h1{font-size:clamp(2.3rem,6vw,4.4rem);line-height:1.22;letter-spacing:.01em}:is(:lang(zh),:lang(ja),:lang(ko)) h1 em{font-style:normal;font-weight:700}.lede{margin-top:26px;font-size:clamp(1.1rem,2vw,1.3rem);line-height:1.55;color:var(--body-dim);max-width:32em}.hero-actions{display:flex;flex-wrap:wrap;justify-content:center;gap:14px;margin-top:36px}.platform-line{margin-top:20px;font-size:.88rem;color:var(--body-dim)}.hero-stage{margin-top:68px}.hero-shot{margin:0}.hero-shot picture{display:block}.hero-shot img{display:block;width:100%;height:auto;border-radius:var(--r-win);border:1px solid var(--border);box-shadow:0 2px 4px #1d2b3a0a,0 40px 80px -40px #1d2b3a66}.motion .hero-shot[data-reveal]{transform:translateY(28px) scale(.985);transition-duration:1.2s}.motion .hero-shot[data-reveal].is-in{transform:none}.hero-credit{margin-top:16px}.credit{margin-top:14px;font-size:.8rem;color:var(--body-dim);text-align:right}.credit cite{font-style:italic}:is(:lang(zh),:lang(ja),:lang(ko)) .credit cite{font-style:normal}.section{padding:136px 0;position:relative}.section+.section{border-top:1px solid var(--border)}.section-head{max-width:760px;margin:0 auto 64px;text-align:center}.kicker{font-family:var(--sans);font-size:.8rem;font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:var(--body-dim);margin:0 0 16px}:is(:lang(zh),:lang(ja),:lang(ko)) .kicker{letter-spacing:.1em}h2{font-size:clamp(2.3rem,4.6vw,3.6rem);line-height:1.08;letter-spacing:-.01em}:is(:lang(zh),:lang(ja),:lang(ko)) h2{font-size:clamp(2rem,4vw,3rem);line-height:1.3}.section-lede{margin:18px auto 0;max-width:34em;font-size:1.12rem;line-height:1.6;color:var(--body-dim)}.download{background:var(--paper-deep);border-top:1px solid var(--border)}.download+.section{border-top:1px solid var(--border)}.launch-note{margin:28px auto 0;text-align:center;font:600 1.05rem/1.4 var(--sans);color:var(--accent)}.download.pending .platform a,.download.pending .all-releases a{opacity:.45;pointer-events:none}.download.pending .copy{display:none}.platforms{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;align-items:stretch}.platform{display:flex;flex-direction:column;align-items:stretch;padding:30px 26px 28px;background:var(--card);border:1px solid var(--border);border-radius:var(--r-card);box-shadow:var(--shadow-soft);min-width:0}.platform h3{font-size:1.8rem;line-height:1.1}.platform-sub{margin:4px 0 22px;font-size:.86rem;color:var(--body-dim)}.platform-extra{margin-top:18px;padding-top:16px;border-top:1px solid var(--border)}.brew-label{font-size:.8rem;color:var(--body-dim);margin-bottom:8px}.snippet{display:flex;align-items:flex-start;gap:4px;padding:4px 4px 4px 12px;background:var(--paper-deep);border:1px solid var(--border);border-radius:var(--r-inner)}.snippet code{flex:1;min-width:0;padding:6px 0;font-size:.76rem;line-height:1.5;color:var(--ink);overflow-wrap:anywhere}.snippet .nw{white-space:nowrap}.copy{position:relative;flex:none;display:inline-grid;place-items:center;width:32px;height:32px;padding:0;color:var(--body-dim);background:transparent;border:0;border-radius:8px;cursor:pointer;transition:background-color .2s var(--ease),color .2s var(--ease)}.copy:hover{background:var(--accent-soft);color:var(--ink)}.copy svg{grid-area:1 / 1;width:16px;height:16px;fill:none;stroke:currentColor;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round;transition:opacity .2s var(--ease),transform .3s var(--ease-out)}.copy .ic-done{opacity:0;transform:scale(.6)}.copy.done{color:var(--ins)}.copy.done .ic-copy{opacity:0;transform:scale(.6)}.copy.done .ic-done{opacity:1;transform:none}.alt-links{font-size:.86rem;color:var(--body-dim)}.alt-links a,.all-releases a{color:var(--accent);text-decoration:underline;text-decoration-color:var(--border-strong);text-underline-offset:3px}.alt-links a:hover,.all-releases a:hover{text-decoration-color:currentColor}.soon{margin-top:32px;text-align:center;font-size:.95rem;color:var(--body-dim)}.all-releases{margin-top:10px;text-align:center;font-size:.92rem}.all-releases a:after{content:" →"}.sub+.sub{margin-top:136px}.sub-head{max-width:640px;margin:0 auto;text-align:center}.sub-head h3{font-size:clamp(1.9rem,3.4vw,2.6rem);line-height:1.12;letter-spacing:-.01em}:is(:lang(zh),:lang(ja),:lang(ko)) .sub-head h3{font-size:clamp(1.6rem,2.8vw,2.1rem);line-height:1.35}.sub-head p{margin-top:14px;font-size:1.06rem;line-height:1.6;color:var(--body-dim)}.sub-vis{margin:48px auto 0;max-width:1040px}.vis-wide,.vis-mid{container-type:inline-size}.vis-mid{max-width:880px;margin:0 auto}.mock{position:relative;background:var(--card);border:1px solid var(--border-strong);border-radius:var(--r-win);box-shadow:var(--shadow);overflow:hidden}.mock-bar{display:flex;align-items:center;gap:12px;height:2.6em;padding:0 1em;border-bottom:1px solid var(--border);background:var(--paper-deep);flex:none}.mock-dots{display:inline-flex;gap:6px}.mock-dots i{width:9px;height:9px;border-radius:50%;background:#1d2b3a1f}.mock-title{font-family:var(--mono);font-size:.78em;color:var(--body-dim);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.caret{display:inline-block;width:2px;height:1.1em;margin-left:1px;vertical-align:text-bottom;background:var(--accent);border-radius:1px;opacity:0;transition:opacity .2s var(--ease)}.caret.on{opacity:1}.motion .caret.on{animation:blink 1.1s steps(1) infinite}@keyframes blink{50%{opacity:0}}.md-page{font-family:var(--sans);color:var(--body)}.md-page h1,.md-page h2,.md-page h3,.md-page h4{font-family:var(--sans);color:var(--ink);font-weight:700;letter-spacing:-.01em;text-wrap:initial}.md-page h1{font-size:1.75em;line-height:1.2}.md-page h2{font-size:1.3em;line-height:1.3;padding-bottom:.25em;border-bottom:1px solid var(--border)}.md-page h3{font-size:1.08em;line-height:1.4}.md-page h4{font-size:.8em;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--body-dim)}:is(:lang(zh),:lang(ja),:lang(ko)) .md-page h4{letter-spacing:.04em;font-size:.86em}.md-page strong{color:var(--ink)}.md-page code{font-size:.86em;padding:.08em .35em;border-radius:5px;background:var(--accent-soft);color:var(--ink)}.md-page mark{background:#fbe7a1;color:var(--ink);padding:0 .15em;border-radius:3px}.md-page .md-link{color:var(--link);text-decoration:underline;text-underline-offset:.18em;text-decoration-color:#2f6fca66}.md-page blockquote{margin:0;padding:.55em .95em;border-left:3px solid var(--border-strong);background:var(--accent-softer);color:var(--body-dim);border-radius:0 var(--r-inner) var(--r-inner) 0}.md-page ul,.md-page ol{margin:0;padding-left:1.3em}.md-page li{margin:.1em 0}.md-page hr{border:0;border-top:1px solid var(--border-strong);margin:.4em 0}.katex{color:var(--ink);white-space:nowrap}.tour{font-size:clamp(12px,1.55cqw,16px)}.tour-body{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:0 2.6em;padding:2em 2.4em 2.2em;line-height:1.6}.tour-col{display:flex;flex-direction:column;gap:.75em;min-width:0}.tp{position:relative;display:grid;cursor:default}.tp>*{grid-area:1 / 1;min-width:0}.tp:before{content:"";position:absolute;inset:-.35em -.6em;border-radius:var(--r-inner);background:var(--accent-softer);box-shadow:inset 0 0 0 1px var(--border);opacity:0;transition:opacity .35s var(--ease);pointer-events:none}.tp-r,.tp-s{transition:opacity .4s var(--ease),transform .5s var(--ease-out)}.tp-r>*{margin:0}.tp-r>*+*{margin-top:.4em}.tp-s{margin:0;align-self:start;font-size:.8em;line-height:1.65;white-space:pre-wrap;overflow-wrap:anywhere;color:var(--body);opacity:0;transform:translateY(3px)}.tp-s b{color:var(--link);font-weight:600}.tp.show:before{opacity:1}.tp.show .tp-r{opacity:0;transform:translateY(-3px)}.tp.show .tp-s{opacity:1;transform:none}.tour-body h1{font-size:2em}.tour-body h1 .fn-ref{font-size:.4em;vertical-align:super;margin-left:.15em;color:var(--link);font-weight:500}.tour-body .tasks{list-style:none;padding-left:0}.tour-body .tasks li{display:flex;align-items:center;gap:.55em}.tour-body .tb{width:.95em;height:.95em;border:1.5px solid var(--border-strong);border-radius:4px;flex:none;position:relative}.tour-body .done .tb{background:var(--accent);border-color:var(--accent)}.tour-body .done .tb:after{content:"";position:absolute;left:.27em;top:.08em;width:.25em;height:.5em;border-right:2px solid var(--on-accent);border-bottom:2px solid var(--on-accent);transform:rotate(45deg)}.tour-body .done{color:var(--body-dim);text-decoration:line-through;text-decoration-color:var(--border-strong)}.alert{padding:.55em .95em;border-left:3px solid var(--link);border-radius:0 var(--r-inner) var(--r-inner) 0;background:#2f6fca12}.alert p{margin:0}.alert .alert-t{display:flex;align-items:center;gap:.4em;font-weight:600;color:var(--link);margin-bottom:.2em}.alert svg{width:1em;height:1em}.fn-ref{font-size:.7em;color:var(--link);margin-left:.1em}.tour-body .fn{font-size:.86em;color:var(--body-dim)}.code code{background:none;padding:0;font-size:1em}.code{margin:0;padding:.75em 1em;background:#f6f7f9;border:1px solid var(--border);border-radius:var(--r-inner);font-size:.82em;line-height:1.6;white-space:pre-wrap;color:var(--ink)}.code .k{color:#a2420e}.code .s{color:#1d6b48}.motion .tour .tp-r{opacity:0;transform:translateY(8px);transition-delay:calc(var(--i) * 40ms)}.motion .is-in .tour .tp-r,.motion .tour.arrived .tp-r{opacity:1;transform:none}.motion .tour .tp.show .tp-r{opacity:0;transform:translateY(-3px);transition-delay:0s}.motion .tour.arrived .tp-r{transition-delay:0s}.blocks{container-type:inline-size;max-width:880px;margin:0 auto}.tabs{display:flex;justify-content:center;gap:4px;width:max-content;max-width:100%;margin:0 auto 28px;padding:4px;background:var(--accent-softer);border:1px solid var(--border);border-radius:999px}.tab{position:relative;padding:8px 20px;border:0;border-radius:999px;background:transparent;font:600 .9rem var(--sans);color:var(--body-dim);cursor:pointer;overflow:hidden;transition:color .3s var(--ease)}.tab:before{content:"";position:absolute;inset:0;border-radius:inherit;background:var(--card);box-shadow:0 1px 2px #1d2b3a14,0 4px 12px -6px #1d2b3a33;opacity:0;transform:scale(.94);transition:opacity .35s var(--ease),transform .45s var(--ease-out)}.tab span{position:relative}.tab:hover,.tab.on{color:var(--ink)}.tab.on:before{opacity:1;transform:none}.tab-prog{position:absolute;left:20px;right:20px;bottom:4px;height:2px;border-radius:1px;background:var(--ink);opacity:.35;transform:scaleX(0);transform-origin:left center}.blocks.running .tab.on .tab-prog{animation:prog var(--dur, 6s) linear forwards}.blocks.halted .tab-prog{opacity:0}.blocks.paused .tab.on .tab-prog{animation-play-state:paused}@keyframes prog{0%{transform:scaleX(0)}to{transform:scaleX(1)}}.panels{display:grid}.panel{grid-area:1 / 1;min-width:0;opacity:0;transform:translateY(10px);visibility:hidden;transition:opacity .35s var(--ease),transform .5s var(--ease),visibility 0s linear .5s}.panel.on{opacity:1;transform:none;visibility:visible;transition:opacity .55s var(--ease) .12s,transform .7s var(--ease-out) .12s,visibility 0s}.panel>.mock,.panel .dg-win{font-size:clamp(12px,1.9cqw,16px)}.panel{align-self:stretch}.panel>.mock{height:100%;display:flex;flex-direction:column}.mx-body{flex:1;padding:2.2em 2.8em 2.4em;display:flex;flex-direction:column;justify-content:center;min-height:24em}.mx-body h1{font-size:1.6em;margin-bottom:.4em}.mx-body p{margin:0}.mx-block{display:grid;margin:1em 0 1.2em}.mx-live,.mx-rendered{grid-area:1 / 1;transition:opacity .45s var(--ease),transform .6s var(--ease-out)}.mx-live{display:flex;flex-direction:column;align-items:center;gap:.7em}.mx-src{min-width:70%;border:1px solid var(--border-strong);border-radius:var(--r-inner);padding:.75em 1em;text-align:center;background:var(--card)}.mx-src code{font-size:1em;white-space:pre;color:var(--ink);background:none;padding:0}.mx-pop{display:grid;place-items:center;min-height:3.6em;padding:.3em 1.2em;background:var(--card);border:1px solid var(--border);border-radius:var(--r-inner);box-shadow:var(--shadow-soft)}.mxf{grid-area:1 / 1;font-size:1.9em;opacity:0}.mxf.on{opacity:1}.mxf .katex-display,.mx-rendered .katex-display{margin:0}.mx-rendered{align-self:center;text-align:center;font-size:2.3em;opacity:0;transform:translateY(6px)}.mx.done .mx-live{opacity:0;transform:translateY(-6px)}.mx.done .mx-rendered{opacity:1;transform:none}.tbls{display:flex;flex-direction:column;gap:18px;height:100%}.tbls .segs{margin-top:0}.panel .tbl{font-size:clamp(12px,1.9cqw,16px);flex:1;display:flex;flex-direction:column}.tbl-body{position:relative;flex:1;padding:2.4em 2.8em 3.6em;display:flex;flex-direction:column;justify-content:center;min-height:24em}.tbl-body h2{margin-bottom:.9em}.tbl-stage{display:grid;align-items:start;min-height:8.9em}.tbl-stage>*{grid-area:1 / 1}.tbl-src{margin:0;padding:.62em 1em;font-family:var(--mono);font-size:1.02em;line-height:1.5;color:var(--ink);white-space:pre;overflow:hidden;background:var(--accent-softer);border-radius:var(--r-inner);box-shadow:inset 0 0 0 1px var(--border);transition:opacity .35s var(--ease),transform .5s var(--ease-out)}.tbl-src b{color:var(--link);font-weight:600}.tbl table{width:100%;table-layout:fixed;border-collapse:separate;border-spacing:0;font-size:1.02em;border:1px solid var(--border-strong);border-radius:var(--r-inner);overflow:hidden;transition:clip-path .75s var(--ease-out) .1s,opacity .3s var(--ease) .1s;clip-path:inset(0 0 0 0)}.tbl th{text-align:left;font-weight:600;color:var(--ink);background:var(--paper-deep);padding:.62em 1em;border-bottom:1px solid var(--border-strong)}.tbl td{padding:.6em 1em;border-top:1px solid var(--border);transition:padding .5s var(--ease-out),border-color .4s var(--ease),background-color .3s var(--ease),box-shadow .3s var(--ease)}.tbl tbody tr:first-child td{border-top:0}.tbl th+th,.tbl td+td{border-left:1px solid var(--border)}.tbl .r{text-align:right;font-variant-numeric:tabular-nums}.tbl .c{text-align:center}.tbl th:nth-child(1){width:40%}.tbl th:nth-child(2){width:34%}.tbl .cw{overflow:hidden;text-overflow:ellipsis}.tbl .cw{min-height:1.5em;max-height:2.4em;line-height:1.5;white-space:nowrap;transition:max-height .5s var(--ease-out),min-height .5s var(--ease-out),opacity .4s var(--ease) .1s}.tbl th .cv{display:inline-block;transition:opacity .4s var(--ease),transform .55s var(--ease-out);transition-delay:calc(.3s + var(--j) * .09s)}.tbl td.cur{background:var(--accent-softer)!important;box-shadow:inset 0 0 0 1.5px #2f6fca8c}.tbl .caret{vertical-align:-.2em}.tbl-key{position:absolute;right:2.8em;bottom:1.2em;margin:0}.tbl-key kbd{opacity:.6;transition:transform .18s var(--ease),background-color .18s var(--ease),color .18s var(--ease),opacity .18s var(--ease)}.tbl-key kbd.press{opacity:1;transform:translateY(1px) scale(.94);background:var(--ink);color:var(--on-accent)}.tbls:not([data-step="0"]) .tbl-src{opacity:0;transform:translateY(-4px);pointer-events:none}.tbls[data-step="0"] .tbl table{opacity:0;clip-path:inset(0 0 100% 0);transition:clip-path .3s var(--ease),opacity .25s var(--ease)}.tbls[data-step="0"] .tbl th .cv{opacity:0;transform:translateY(6px);transition-delay:0s}.tbls[data-step="0"] .r2 td,.tbls[data-step="1"] .r2 td{padding-top:0;padding-bottom:0;border-top-color:transparent}.tbls[data-step="0"] .r2 .cw,.tbls[data-step="1"] .r2 .cw{min-height:0;max-height:0;opacity:0}.tbls[data-step="2"] .r2 td{animation:row-in 1.6s var(--ease) both}@keyframes row-in{0%{background-color:#2f6fca1a}to{background-color:transparent}}.dgs{display:flex;flex-direction:column;gap:18px}.dg-win{display:flex;flex-direction:column}.dg-stage{position:relative;height:clamp(250px,48cqw,410px);background:var(--card)}.dg{position:absolute;inset:0;margin:0;display:flex;align-items:center;justify-content:center;padding:1.4em 1.6em;opacity:0;transform:scale(.985);transition:opacity .5s var(--ease),transform .8s var(--ease-out)}.dg img{display:block;max-width:100%;max-height:100%;width:auto;height:auto}.dgs[data-step="0"] .dg[data-k="0"],.dgs[data-step="1"] .dg[data-k="1"],.dgs[data-step="2"] .dg[data-k="2"],.dgs[data-step="3"] .dg[data-k="3"],.dgs[data-step="4"] .dg[data-k="4"],.dgs:not([data-step]) .dg[data-k="0"]{opacity:1;transform:none}.segs{display:flex;justify-content:center;flex-wrap:wrap;gap:4px 6px;margin-top:18px}.seg{display:flex;flex-direction:column;align-items:center;gap:6px;padding:8px 8px 10px;min-width:64px;border:0;border-radius:10px;background:transparent;font:500 .82rem var(--sans);color:var(--body-dim);cursor:pointer;transition:color .3s var(--ease),background-color .3s var(--ease)}.seg:hover{color:var(--ink);background:var(--accent-softer)}.seg i{position:relative;display:block;width:100%;min-width:40px;height:2px;border-radius:1px;background:var(--border-strong);overflow:hidden}.seg i:after{content:"";position:absolute;inset:0;background:var(--ink);transform:scaleX(0);transform-origin:left center}.seg[aria-current=true]{color:var(--ink)}.seg[aria-current=true] i:after{transform:scaleX(1)}.running .seg[aria-current=true] i:after{animation:prog var(--dur, 3s) linear forwards}.paused .seg[aria-current=true] i:after{animation-play-state:paused}.dgs .segs{margin-top:0}.dg-names{display:grid;margin-left:auto}.dg-name{grid-area:1 / 1;font-size:.78em;font-weight:600;white-space:nowrap;text-align:right;color:var(--ink);opacity:0;transition:opacity .5s var(--ease)}.dgs[data-step="0"] .dg-name[data-k="0"],.dgs[data-step="1"] .dg-name[data-k="1"],.dgs[data-step="2"] .dg-name[data-k="2"],.dgs[data-step="3"] .dg-name[data-k="3"],.dgs[data-step="4"] .dg-name[data-k="4"],.dgs:not([data-step]) .dg-name[data-k="0"]{opacity:1}.ws{--eb: #ffffff;--et: #24272e;--em: #707070;--ea: #315ed1;--eq: #d8d4cc;--ebd: #e1e4ea;--ef: -apple-system, "SF Pro Text", Inter, system-ui, sans-serif}.ws[data-theme=paper]{--eb: #faf6ee;--et: #2b2620;--em: #706758;--ea: #9a5628;--eq: #b5652f;--ebd: #e4dcc8;--ef: Georgia, serif}.ws[data-theme=slate]{--eb: #f7f8fa;--et: #1c2128;--em: #656d77;--ea: #3467d2;--eq: #3568d4;--ebd: #d8dee4;--ef: -apple-system, Inter, system-ui, sans-serif}.ws[data-theme=forest]{--eb: #f5f7f2;--et: #22301f;--em: #616d5a;--ea: #487448;--eq: #4c7a4c;--ebd: #dbe3d3;--ef: -apple-system, Inter, system-ui, sans-serif}.ws[data-theme=parchment]{--eb: #f1e6c8;--et: #4a3826;--em: #6d5b45;--ea: #8c3a2b;--eq: #a68a55;--ebd: #c9b587;--ef: "Bradley Hand", "Segoe Script", "STKaiti", "Kaiti SC", "楷体", "LXGW WenKai", "AR PL UKai CN", cursive, serif}.ws-sw{display:inline-block;width:.9em;height:.9em;border-radius:50%;border:1px solid rgba(29,43,58,.22);flex:none}.ws-sw-default{background:#fff}.ws-sw-paper{background:linear-gradient(135deg,#faf6ee 50%,#9a5628 50%)}.ws-sw-slate{background:linear-gradient(135deg,#f7f8fa 50%,#3467d2 50%)}.ws-sw-forest{background:linear-gradient(135deg,#f5f7f2 50%,#487448 50%)}.ws-sw-parchment{background:linear-gradient(135deg,#f1e6c8 50%,#8c3a2b 50%)}.ws.running .tab.on .tab-prog{animation:prog var(--dur, 6s) linear var(--delay, 0s) forwards}.ws.halted .tab-prog{opacity:0}.ws.paused .tab.on .tab-prog{animation-play-state:paused}.ws-win{font-size:clamp(12px,1.8cqw,15.5px);overflow:visible}.ws-win>.mock-bar{position:relative;z-index:2;border-radius:var(--r-win) var(--r-win) 0 0;transition:background-color .6s var(--ease),border-color .6s var(--ease)}.ws-win .mock-bar>.mock-dots,.ws-win .mock-bar>.mock-title{transition:opacity .6s var(--ease)}.ws-win .mock-title{flex:1;min-width:0}.ws.z .ws-win>.mock-bar{background:var(--eb);border-bottom-color:transparent}.ws.z .ws-win .mock-bar>:is(.mock-dots,.mock-title){opacity:0}.ws-pick{position:relative;flex:none;max-width:62%;margin-left:auto}.ws-pick-btn{display:inline-flex;align-items:center;gap:.4em;max-width:100%;height:1.95em;padding:0 .6em 0 .8em;border:1px solid var(--border-strong);border-radius:var(--r-chip);background:var(--card);font:600 .8em var(--sans);color:var(--ink);cursor:pointer;transition:background-color .2s var(--ease),border-color .2s var(--ease)}.ws-pick-btn:hover,.ws-pick-btn[aria-expanded=true]{background:var(--paper-deep);border-color:#1d2b3a5c}.ws-pick-l{min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.ws-pick-btn svg{width:1em;height:1em;flex:none;fill:none;stroke:currentColor;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round;opacity:.7;transition:transform .25s var(--ease)}.ws-pick-btn[aria-expanded=true] svg{transform:rotate(180deg)}.ws-menu{position:absolute;right:0;top:calc(100% + 6px);z-index:5;min-width:13em;padding:5px;background:var(--card);border:1px solid var(--border);border-radius:12px;box-shadow:var(--shadow);transform-origin:top right;animation:menu-in .22s var(--ease-out)}.ws-item{display:flex;align-items:center;gap:.6em;padding:.5em .7em;border-radius:8px;font:500 .86em/1.35 var(--sans);color:var(--body);white-space:nowrap;cursor:pointer;outline:none}.ws-item:hover,.ws-item:focus-visible{background:var(--accent-softer);color:var(--ink)}.ws-item:focus-visible{box-shadow:inset 0 0 0 2px var(--border-strong)}.ws-item[aria-checked=true]{color:var(--ink);font-weight:600}.ws-item[aria-checked=true]:after{content:"";width:6px;height:6px;margin-left:auto;padding-left:0;border-radius:50%;background:var(--accent);flex:none}.ws-item span{margin-right:1.2em}.ws-body{position:relative;display:flex;flex-direction:column;height:25em;border-radius:0 0 var(--r-win) var(--r-win);overflow:hidden}.ws-main{display:flex;flex-direction:column;flex:1;min-height:0;min-width:0;background:var(--eb);transition:background-color .6s var(--ease)}.ws-view{position:relative;flex:1;min-height:0;overflow:hidden}.ws-page,.ws-split{position:absolute;inset:0;transition:opacity .45s var(--ease),visibility 0s linear .45s}.ws-page{padding:1.9em 2.6em 0;background:var(--eb);color:var(--et);font-family:var(--ef);transition:opacity .45s var(--ease),visibility 0s,background-color .6s var(--ease),color .6s var(--ease),padding-top .6s var(--ease-out)}.ws.z[data-mode=zen] .ws-page{padding-top:3.3em}.ws-col{max-width:34em;margin:0 auto;transition:transform .3s var(--ease-out)}.ws-col.swap{animation:fade-in .5s var(--ease)}.ws-page :is(h1,h2,h3),.ws-prev :is(h1,h2,h3){font-family:inherit;color:var(--et)}.ws-page h1,.ws-prev h1{font-size:1.5em}.ws-page h2,.ws-prev h2{font-size:1.15em;border-bottom-color:var(--ebd)}.ws-page h3,.ws-prev h3{font-size:1em}.ws .b+.b{margin-top:.7em}.ws .b p{font-size:.98em;line-height:1.75}.ws .md-page strong{color:var(--et)}.ws .md-page blockquote{border-left-color:var(--eq);background:transparent;color:var(--em);padding:.1em 0 .1em 1em;border-radius:0}.ws .caret{background:var(--ea)}.ws-page .b{transition:opacity .6s var(--ease)}.ws-page .b.pend{display:none}.ws-body :is(.ws-page,.ws-src,.ws-prev){word-break:normal}:lang(ko) .ws-body .ws-src{word-break:keep-all}.ws.z[data-mode=zen] .ws-page .b:not(.cur){opacity:.32}.ws-hint{position:absolute;top:.8em;left:50%;z-index:1;padding:.3em 1em;border-radius:999px;background:color-mix(in srgb,var(--et) 8%,var(--eb));color:var(--em);font:.74em var(--sans);white-space:nowrap;transform:translate(-50%);opacity:0;pointer-events:none}.ws.z[data-mode=zen] .ws-hint{animation:ws-hint 4.2s var(--ease) .5s both}.ws.paused .ws-hint{animation-play-state:paused}@keyframes ws-hint{0%{opacity:0}10%{opacity:1}75%{opacity:1}to{opacity:0}}.ws-split{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);opacity:0;visibility:hidden}.ws:is([data-mode=split],[data-mode=source]) .ws-split{opacity:1;visibility:visible;transition:opacity .45s var(--ease),visibility 0s}.ws:is([data-mode=split],[data-mode=source]) .ws-page{opacity:0;visibility:hidden;transition:opacity .45s var(--ease),visibility 0s linear .45s}.ws-pane{position:relative;min-width:0;min-height:0;overflow:hidden;background:var(--eb)}.ws-src-pane{border-right:1px solid var(--ebd)}.ws-src{margin:0;padding:1.7em 1.4em;font:.8em/1.75 var(--mono);color:var(--et);white-space:pre-wrap;overflow-wrap:anywhere;transition:transform .3s var(--ease-out)}.ws-src b{font-weight:inherit;color:inherit}.ws-prev{padding:1.7em 1.4em;color:var(--et);font-family:var(--ef);transition:transform .3s var(--ease-out)}.ws-prev .b p{font-size:.92em}.ws[data-mode=source] .ws-split{grid-template-columns:minmax(0,1fr);grid-template-rows:minmax(0,1fr)}.ws[data-mode=source] .ws-src-pane{border:0}.ws[data-mode=source] .ws-src{max-width:46em;margin:0 auto;padding-inline:2.2em}.ws[data-mode=source] .ws-prev-pane{display:none}@container (max-width: 560px){.ws-body{height:27em}.ws-page{padding:1.5em 1.4em 0}.ws-split{grid-template-columns:minmax(0,1fr);grid-template-rows:minmax(0,1fr) minmax(0,1fr)}.ws-src-pane{border-right:0;border-bottom:1px solid var(--ebd)}.ws-src,.ws-prev{padding:1em 1.2em}.ws[data-mode=source] .ws-src{padding-inline:1.4em}.ws-pick{max-width:70%}}.xp{display:grid;grid-template-columns:minmax(0,1fr) auto minmax(0,1.3fr);align-items:center;gap:2em;font-size:clamp(12px,1.6cqw,16px);max-width:940px;margin:0 auto}.xp-doc{padding:1.8em 1.7em;min-height:17em}.xp-name{font:.75em var(--mono);color:var(--body-dim)}.xp-h{margin-top:.7em;font-size:1.5em;font-weight:700;color:var(--ink)}.xp-line{margin-top:.4em;font-size:.92em;color:var(--body)}.xp-lines{margin-top:1.2em;display:grid;gap:.7em}.xp-lines i{display:block;height:.45em;border-radius:.3em;background:var(--border)}.xp-lines i.short{width:62%}.xp-arrow{display:flex;flex-direction:column;align-items:center;gap:.5em;font-size:.82em;font-weight:600;color:var(--accent)}.xp-arrow:after{content:"";width:3.5em;height:1.5px;background:var(--accent);mask:linear-gradient(90deg,#000 85%,transparent);transform-origin:left center}.xp-files{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1.4em .8em}.xf{display:flex;flex-direction:column;align-items:center;gap:.45em;text-align:center;transition:opacity .5s var(--ease),transform .8s var(--ease-out);transition-delay:calc(.2s + var(--i) * 90ms)}.xf-sheet{position:relative;width:3.6em;height:4.5em;background:var(--card);border:1.5px solid var(--border-strong);border-radius:5px 1.1em 5px 5px;box-shadow:0 10px 20px -14px #1d2b3a80}.xf-band{position:absolute;left:-.45em;bottom:.7em;padding:.12em .42em;font:700 .62em/1.3 var(--sans);letter-spacing:.04em;color:#fff;border-radius:3px;background:var(--xc)}.xf-pdf{--xc: #c4352b}.xf-html{--xc: #d0661e}.xf-docx{--xc: #2b579a}.xf-odt{--xc: #1f7f9e}.xf-rtf{--xc: #5f6b7a}.xf-epub{--xc: #4f8a2b}.xf-name{font:.68em/1.35 var(--mono);color:var(--body);max-width:100%;overflow-wrap:anywhere;display:-webkit-box;-webkit-box-orient:vertical;-webkit-line-clamp:2;overflow:hidden}.motion .xp:not(.play) .xf{opacity:0;transform:translate(-2.4em) scale(.9)}.motion .xp:not(.play) .xp-arrow:after{transform:scaleX(0)}.xp-arrow:after{transition:transform .8s var(--ease-out) .1s}.ai-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));grid-auto-rows:auto auto;column-gap:20px;row-gap:0;max-width:1056px;margin:0 auto}.ai-card{display:grid;grid-row:span 2;grid-template-rows:subgrid;row-gap:0;min-width:0;margin-bottom:20px;padding:32px 32px 28px;background:var(--paper-deep);border:1px solid var(--border);border-radius:var(--r-panel)}.ai-copy h3{font-size:1.7rem;line-height:1.15}:is(:lang(zh),:lang(ja),:lang(ko)) .ai-copy h3{font-size:1.35rem;line-height:1.35}.ai-copy p{margin-top:8px;font-size:.98rem;line-height:1.6;color:var(--body-dim);max-width:32em}.ai-vis{display:flex;flex-direction:column;justify-content:center;margin-top:26px;font-size:15px;line-height:1.6;color:var(--body);container-type:inline-size}.ai-vis{--vp: 24px}.ai-vis>*{flex:1;display:flex;flex-direction:column;justify-content:center;background:var(--card);border:1px solid var(--border);border-radius:var(--r-card);box-shadow:var(--shadow-soft);padding:22px var(--vp)}.ai-credit{margin-top:-6px}.pr-head{display:flex;flex-wrap:wrap;align-items:baseline;gap:4px 12px;margin-bottom:12px}.pr-label{font-size:.78em;font-weight:600;letter-spacing:.06em;text-transform:uppercase;color:var(--body-dim)}:is(:lang(zh),:lang(ja),:lang(ko)) .pr-label{letter-spacing:.02em}.pr-reason{font-size:.92em;color:var(--ink)}.pr-row{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:14px;align-items:center;padding:12px 0;border-top:1px solid var(--border)}.pr-cell{display:grid;min-width:0;font-size:.92em;line-height:1.55}.pr-cell .del,.pr-cell .ins{display:grid;grid-template-rows:1fr;margin:0;transition:grid-template-rows .6s var(--ease),opacity .45s var(--ease),margin .6s var(--ease)}.pr-cell .del>span,.pr-cell .ins>span{overflow:hidden;min-height:0}.pr-cell .t{display:block;padding:.1em .35em;border-radius:5px;transition:background-color .5s var(--ease),color .5s var(--ease),text-decoration-color .5s var(--ease)}.pr-cell .del .t{color:var(--body-dim);text-decoration:line-through;text-decoration-color:#b8433a8c;background:#b8433a0f}.pr-cell .ins{margin-top:.3em}.pr-cell .ins .t{color:var(--ink);background:#1d7a4b17}.pr{justify-content:flex-start!important}.pr-sym{display:flex;gap:6px;transition:opacity .4s var(--ease)}.sym{display:grid;place-items:center;width:28px;height:28px;border-radius:50%;border:1px solid var(--border-strong);color:var(--body-dim);position:relative}.sym:before{content:"";position:absolute;inset:-1px;border-radius:50%;background:var(--ink);opacity:0;transform:scale(.6);transition:opacity .3s var(--ease),transform .4s var(--ease-out)}.sym svg{position:relative;width:14px;height:14px;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round;transition:color .3s var(--ease)}.sym-take{color:var(--ins)}.sym-keep{color:var(--del)}.pr-actions{display:flex;align-items:center;gap:8px;margin-top:6px;padding-top:14px;border-top:1px solid var(--border)}.pbtn{display:inline-grid;justify-items:center;font-size:.82em;font-weight:600;padding:.4em 1em;border:1px solid var(--border-strong);border-radius:999px;color:var(--ink)}.pbtn.primary{background:var(--accent);border-color:var(--accent);color:var(--on-accent)}.pbtn>span{grid-area:1 / 1;transition:opacity .35s var(--ease)}.pa-some{opacity:0}@container (max-width: 360px){.pr-row{grid-template-columns:minmax(0,1fr);gap:8px}.pr-sym{justify-content:flex-end}}.pr[data-step="1"] .r1 .sym-take:before,.pr[data-step="3"] .r2 .sym-keep:before{opacity:1;transform:none}.pr[data-step="1"] .r1 .sym-take,.pr[data-step="3"] .r2 .sym-keep{color:var(--on-accent)}.pr:is([data-step="2"],[data-step="3"],[data-step="4"],[data-step="5"]) .r1 .pr-sym,.pr:is([data-step="4"],[data-step="5"]) .r2 .pr-sym{opacity:0}.pr:is([data-step="2"],[data-step="3"],[data-step="4"],[data-step="5"]) .r1 .del,.pr:is([data-step="4"],[data-step="5"]) .r2 .ins{grid-template-rows:0fr;opacity:0;margin-top:0}.pr:is([data-step="2"],[data-step="3"],[data-step="4"],[data-step="5"]) .r1 .ins{margin-top:0}.pr:is([data-step="2"],[data-step="3"],[data-step="4"],[data-step="5"]) .r1 .ins .t{background:transparent}.pr:is([data-step="4"],[data-step="5"]) .r2 .del .t{background:transparent;color:var(--ink);text-decoration-color:transparent}.pr:is([data-step="2"],[data-step="3"],[data-step="4"],[data-step="5"]) .pa-all{opacity:0}.pr:is([data-step="2"],[data-step="3"],[data-step="4"],[data-step="5"]) .pa-some{opacity:1}.gh{font-size:1.02em}.gh-prev{color:var(--body-dim);margin-bottom:.5em}.gh-line{line-height:1.75}.g-sugg{color:var(--body-dim);opacity:0;transition:opacity .6s var(--ease),color .5s var(--ease)}.tab-hint{margin-top:1em;font-size:.85em;color:var(--body-dim);opacity:0;transform:translateY(4px);transition:opacity .4s var(--ease),transform .4s var(--ease)}.tab-hint kbd{transition:transform .2s var(--ease),background-color .2s var(--ease),color .2s var(--ease)}.gh:not([data-step]) .ca,.gh[data-step="0"] .ca,.gh[data-step="1"] .ca,.gh[data-step="2"] .ca,.gh[data-step="3"] .cb{opacity:1}.gh:is([data-step="1"],[data-step="2"]) .g-sugg{opacity:.75}.gh:is([data-step="1"],[data-step="2"]) .tab-hint{opacity:1;transform:none}.gh[data-step="2"] .tab-hint kbd{transform:translateY(1px) scale(.94);background:var(--ink);color:var(--on-accent)}.gh[data-step="3"] .g-sugg{opacity:1;color:var(--body)}.gr{font-size:1.02em}.gr-line{line-height:1.85}.gr{position:relative}.gr-w{position:relative;display:inline-block;text-indent:0}.gr-right{display:none}.gr-w:after{content:"";position:absolute;left:0;right:0;bottom:-.12em;height:.3em;background:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='8' height='4' viewBox='0 0 8 4'><path d='M0 3 Q2 0 4 3 T8 3' fill='none' stroke='%23c4352b' stroke-width='1.2'/></svg>") repeat-x 0 100% / 8px 4px;opacity:0;transition:opacity .4s var(--ease)}.gr-pop{position:absolute;left:var(--vp);bottom:16px;z-index:2;display:flex;align-items:center;gap:.7em;padding:.5em .75em;white-space:nowrap;font-size:.82em;line-height:1.4;background:var(--card);border:1px solid var(--border-strong);border-radius:var(--r-inner);box-shadow:var(--shadow);opacity:0;transform:translateY(4px);transition:opacity .35s var(--ease),transform .45s var(--ease-out);pointer-events:none}.gr-kind{font-weight:600;color:var(--body-dim)}.gr-fix s{color:var(--body-dim);text-decoration-color:#b8433a99}.gr-fix b{color:var(--ins);font-weight:600}.gr{padding-bottom:calc(3.4em + 22px)!important}.gr:is([data-step="1"],[data-step="2"]) .gr-w:after{opacity:1}.gr[data-step="2"] .gr-pop,.gr:not([data-step]) .gr-pop{opacity:1;transform:none}.gr:not([data-step]) .gr-w:after{opacity:1}.gr[data-step="3"] .gr-wrong{display:none}.gr[data-step="3"] .gr-right{display:inline}.motion .gr[data-step="3"] .gr-right{animation:fade-in .5s var(--ease)}@keyframes fade-in{0%{opacity:0}to{opacity:1}}.rv{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,13em);gap:18px;align-items:center}.rv-doc{font-size:1em;line-height:1.8}.rv-quote{border-radius:3px;padding:0 .1em;-webkit-box-decoration-break:clone;box-decoration-break:clone;background-color:transparent;box-shadow:inset 0 -2px 0 transparent;transition:background-color .5s var(--ease),box-shadow .5s var(--ease)}.rv-comment{padding:.8em .95em;border-left:3px solid var(--accent);background:var(--paper-deep);border-radius:0 var(--r-inner) var(--r-inner) 0;font-size:.88em;opacity:0;transform:translate(12px);transition:opacity .6s var(--ease),transform .7s var(--ease-out)}.rv-text{color:var(--ink)}.rv-by{margin-top:.4em;font-size:.82em;color:var(--body-dim)}.rv:is([data-step="1"],[data-step="2"]) .rv-quote,.rv:not([data-step]) .rv-quote{background-color:#e8be504d;box-shadow:inset 0 -2px #d0a23a}.rv[data-step="2"] .rv-comment,.rv:not([data-step]) .rv-comment{opacity:1;transform:none}.sk{display:flex;flex-direction:column;gap:10px}.sk-menu{list-style:none;margin:0;padding:5px;border:1px solid var(--border);border-radius:var(--r-inner);background:var(--card);box-shadow:var(--shadow-soft);transform-origin:bottom left;opacity:0;transform:translateY(6px) scale(.98);transition:opacity .35s var(--ease),transform .45s var(--ease-out)}.sk-i{position:relative;display:flex;gap:12px;align-items:baseline;padding:7px 10px;border-radius:7px}.sk-i:before{content:"";position:absolute;inset:0;border-radius:inherit;background:var(--accent-soft);opacity:0;transition:opacity .3s var(--ease)}.sk-n{position:relative;font-family:var(--mono);font-size:.84em;font-weight:600;color:var(--ink);flex:none}.sk-d{position:relative;font-size:.86em;color:var(--body-dim);min-width:0}.sk-input{padding:9px 12px;border:1px solid var(--border-strong);border-radius:var(--r-inner);font-family:var(--mono);font-size:.88em;color:var(--ink)}.sk:not([data-step="0"]) .sk-menu{opacity:1;transform:none}.sk[data-step="1"] .sk-i0:before,.sk[data-step="2"] .sk-i1:before,.sk[data-step="3"] .sk-i2:before,.sk[data-step="4"] .sk-i3:before,.sk:not([data-step]) .sk-i0:before{opacity:1}.kn{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,1fr);grid-template-rows:auto auto;gap:10px;background:transparent!important;border:0!important;box-shadow:none!important;padding:0!important}.kn-card{padding:14px 16px;background:var(--card);border:1px solid var(--border);border-radius:var(--r-inner);box-shadow:var(--shadow-soft);min-width:0}.kn-style{grid-row:span 2}.kn-file{font:.74em var(--mono);color:var(--body-dim);margin-bottom:6px}.kn-l{font-size:.9em;line-height:1.5;color:var(--ink);padding:.3em 0;border-top:1px solid var(--border);transition:opacity .5s var(--ease),transform .6s var(--ease-out);transition-delay:calc(.3s + var(--i) * .25s)}.kn-l:first-of-type{border-top:0}.kn-h{font-family:var(--serif);font-size:1.3em;font-weight:700;color:var(--ink);line-height:1.2}.kn-desc{margin-top:4px;font-size:.86em;line-height:1.5;color:var(--body)}.motion .kn:not(.play) .kn-l{opacity:0;transform:translate(-6px)}.kn-lib,.kn-rules{transition:opacity .5s var(--ease) 1.1s,transform .6s var(--ease-out) 1.1s}.kn-rules{transition-delay:1.35s}.motion .kn:not(.play) :is(.kn-lib,.kn-rules){opacity:0;transform:translateY(6px)}.providers{margin-top:88px;text-align:center}.providers-h{font-size:clamp(1.7rem,3vw,2.2rem);line-height:1.2}:is(:lang(zh),:lang(ja),:lang(ko)) .providers-h{font-size:clamp(1.4rem,2.4vw,1.8rem)}.providers-p{margin:10px auto 0;max-width:34em;font-size:1rem;color:var(--body-dim)}.pv-row{list-style:none;margin:32px auto 0;padding:0;display:flex;flex-wrap:wrap;justify-content:center;gap:10px;max-width:880px}.pv{display:inline-flex;align-items:center;gap:9px;height:42px;padding:0 16px 0 13px;background:var(--card);border:1px solid var(--border);border-radius:999px;color:var(--ink)}.pv-mark{display:block;width:20px;height:20px;flex:none}.pv-mark svg{width:100%;height:100%;display:block}.pv-name{font-size:.88rem;font-weight:600;white-space:nowrap}.pv-text{padding-left:16px}.pv-text .pv-name{font-size:.95rem;font-weight:700;letter-spacing:-.01em}.pv-mono .pv-mark{color:#000}.pv-openrouter .pv-mark{color:#03080a}.pv-any{border-style:dashed;border-color:var(--border-strong)}.pv-any .pv-name{font-weight:500;color:var(--body)}.pp-grid{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:0;border-top:1px solid var(--border-strong)}.pp{padding:28px 28px 30px 0;border-bottom:1px solid var(--border);min-width:0}.pp:not(:nth-child(3n+1)){padding-left:28px;border-left:1px solid var(--border)}.pp svg{width:24px;height:24px;fill:none;stroke:var(--accent);stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round}.pp h4{margin:14px 0 6px;font-family:var(--serif);font-size:1.45rem;font-weight:700;color:var(--ink);line-height:1.2}:is(:lang(zh),:lang(ja),:lang(ko)) .pp h4{font-size:1.15rem}.pp p{font-size:.98rem;line-height:1.6;color:var(--body-dim)}.pp-local{margin-top:18px;text-align:center;font-size:.95rem;color:var(--body-dim)}.faq-list{border-top:1px solid var(--border-strong)}.faq-item{border-bottom:1px solid var(--border-strong)}.faq-item summary{list-style:none;display:flex;align-items:center;justify-content:space-between;gap:24px;padding:24px 2px;cursor:pointer}.faq-item summary::-webkit-details-marker{display:none}.faq-q{font-family:var(--serif);font-size:1.45rem;font-weight:600;color:var(--ink);line-height:1.3}:is(:lang(zh),:lang(ja),:lang(ko)) .faq-q{font-size:1.15rem;font-weight:700}.faq-icon{flex:none;position:relative;width:14px;height:14px}.faq-icon:before,.faq-icon:after{content:"";position:absolute;left:0;top:6px;width:14px;height:1.5px;border-radius:1px;background:var(--ink);transition:transform .35s var(--ease)}.faq-icon:after{transform:rotate(90deg)}.faq-item[open] .faq-icon:after{transform:rotate(0)}.faq-item summary:hover .faq-q{color:var(--accent-hover)}.faq-a{overflow:hidden}.faq-a p{padding:0 2px 26px;font-size:1.02rem;line-height:1.7;color:var(--body-dim);max-width:44em}.footer{padding:56px 0 64px;border-top:1px solid var(--border)}.footer-inner{display:grid;grid-template-columns:1fr auto;gap:28px 40px;align-items:center}.footer-brand{display:flex;align-items:center;gap:14px}.footer-brand img{border-radius:9px}.footer-name{font-family:Cormorant Garamond,Georgia,serif;font-size:1.4rem;font-weight:600;color:var(--ink);line-height:1}.footer-tag{margin-top:4px;font-size:.86rem;color:var(--body-dim)}.footer-links{display:flex;flex-wrap:wrap;gap:8px 24px;font-size:.88rem;color:var(--body-dim)}.footer-links a:hover{color:var(--ink)}.footer-meta{grid-column:1 / -1;font-size:.8rem;color:var(--body-dim)}.legal-wrap{max-width:760px;margin:0 auto;padding:80px 32px 104px}.legal-head{margin-bottom:40px}.legal-head h1{font-size:clamp(2.4rem,6vw,3.4rem);max-width:none}.legal-date{margin-top:12px;font-size:.88rem;color:var(--body-dim)}.legal h2{font-size:1.6rem;margin:36px 0 8px}:is(:lang(zh),:lang(ja),:lang(ko)) .legal h2{font-size:1.2rem}.legal p{line-height:1.75;color:var(--body)}.legal a{color:var(--accent);text-decoration:underline;text-underline-offset:3px}.legal strong{color:var(--ink)}.legal-summary{font-size:1.12rem}.motion [data-reveal]{opacity:0;transform:translateY(18px);transition:opacity .9s var(--ease),transform 1s var(--ease-out);transition-delay:var(--reveal-delay, 0ms)}.motion [data-reveal].is-in{opacity:1;transform:none}@container (max-width: 620px){.tour-body{grid-template-columns:minmax(0,1fr);padding:1.4em 1.3em 1.6em}.tour-col+.tour-col{margin-top:.75em}.tp-hr,.tp-code{display:none}.xp{grid-template-columns:minmax(0,1fr);gap:1.2em}.xp-doc{min-height:0}.xp-arrow:after{width:1.5px;height:2em;mask:linear-gradient(180deg,#000 80%,transparent);transform-origin:center top}.motion .xp:not(.play) .xp-arrow:after{transform:scaleY(0)}.mx-body,.tbl-body{padding:1.6em 1.4em;min-height:20em}.tbl-body{padding-bottom:3.4em}.tbl-key{right:1.4em}.tbl th,.tbl td,.tbl-src{padding-left:.7em;padding-right:.7em}}@container (min-width: 760px){.kn{grid-template-columns:minmax(0,1.3fr) minmax(0,1fr) minmax(0,1fr);grid-template-rows:auto}.kn-style{grid-row:auto}}@container (max-width: 420px){.rv,.kn{grid-template-columns:minmax(0,1fr)}.kn-style{grid-row:auto}}@media(max-width:1020px){.nav-links{gap:18px}}@media(max-width:860px){.nav-links{display:none}.wrap{padding:0 24px}.hero{padding:64px 0 16px}.hero-stage{margin-top:52px}.section{padding:104px 0}.section-head{margin-bottom:48px}.sub+.sub{margin-top:104px}.sub-vis{margin-top:36px}.platforms{grid-template-columns:1fr;max-width:520px;margin:0 auto}.pp-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.pp:not(:nth-child(3n+1)){padding-left:0;border-left:0}.pp:nth-child(2n){padding-left:24px;border-left:1px solid var(--border)}.footer-inner{grid-template-columns:1fr}}@media(min-width:761px)and (max-width:1020px){.ai-card{padding:26px 22px 22px}.ai-vis{--vp: 16px}}@media(max-width:760px){.ai-grid{grid-template-columns:minmax(0,1fr)}}@media(max-width:560px){body{font-size:16px}.wrap{padding:0 16px}.nav-inner{gap:10px;height:58px}.nav-actions{gap:6px}.nav-icon{display:none}.hero-icon{width:72px;height:72px;border-radius:16px}.hero-actions,.hero-actions .btn{width:100%}.hero-shot img{border-radius:10px}.section{padding:88px 0}.sub+.sub{margin-top:88px}.platform{padding:24px 20px 22px}.ai-card{padding:24px 20px 20px;border-radius:var(--r-card)}.ai-vis{font-size:14px;margin-top:20px}.ai-vis{--vp: 18px}.ai-vis>*{padding:18px var(--vp);border-radius:16px}.tab{padding:8px 14px;font-size:.86rem}.tab-prog{left:14px;right:14px}.seg{min-width:0;padding:8px 6px 10px;font-size:.74rem}.seg i{min-width:28px}.segs-named .seg{flex:1;max-width:72px;padding:14px 4px}.segs-named .seg-label{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}.segs-named .seg i{min-width:0}.pp-grid{grid-template-columns:1fr}.pp,.pp:nth-child(2n){padding:22px 0;border-left:0}.providers{margin-top:72px}.pv{height:38px;padding:0 13px 0 11px}.pv-name{font-size:.82rem}.faq-q{font-size:1.25rem}.legal-wrap{padding:56px 16px 80px}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{transition:none!important;animation:none!important}.btn:hover,.btn:active{transform:none}}