@import"https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=Source+Serif+4:wght@500;600;700&display=swap";@font-face{font-display:block;font-family:KaTeX_AMS;font-style:normal;font-weight:400;src:url(/_astro/KaTeX_AMS-Regular.BQhdFMY1.woff2) format("woff2"),url(/_astro/KaTeX_AMS-Regular.DMm9YOAa.woff) format("woff"),url(/_astro/KaTeX_AMS-Regular.DRggAlZN.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Caligraphic;font-style:normal;font-weight:700;src:url(/_astro/KaTeX_Caligraphic-Bold.Dq_IR9rO.woff2) format("woff2"),url(/_astro/KaTeX_Caligraphic-Bold.BEiXGLvX.woff) format("woff"),url(/_astro/KaTeX_Caligraphic-Bold.ATXxdsX0.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Caligraphic;font-style:normal;font-weight:400;src:url(/_astro/KaTeX_Caligraphic-Regular.Di6jR-x-.woff2) format("woff2"),url(/_astro/KaTeX_Caligraphic-Regular.CTRA-rTL.woff) format("woff"),url(/_astro/KaTeX_Caligraphic-Regular.wX97UBjC.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Fraktur;font-style:normal;font-weight:700;src:url(/_astro/KaTeX_Fraktur-Bold.CL6g_b3V.woff2) format("woff2"),url(/_astro/KaTeX_Fraktur-Bold.BsDP51OF.woff) format("woff"),url(/_astro/KaTeX_Fraktur-Bold.BdnERNNW.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Fraktur;font-style:normal;font-weight:400;src:url(/_astro/KaTeX_Fraktur-Regular.CTYiF6lA.woff2) format("woff2"),url(/_astro/KaTeX_Fraktur-Regular.Dxdc4cR9.woff) format("woff"),url(/_astro/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(/_astro/KaTeX_Main-Bold.Cx986IdX.woff2) format("woff2"),url(/_astro/KaTeX_Main-Bold.Jm3AIy58.woff) format("woff"),url(/_astro/KaTeX_Main-Bold.waoOVXN0.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:italic;font-weight:700;src:url(/_astro/KaTeX_Main-BoldItalic.DxDJ3AOS.woff2) format("woff2"),url(/_astro/KaTeX_Main-BoldItalic.SpSLRI95.woff) format("woff"),url(/_astro/KaTeX_Main-BoldItalic.DzxPMmG6.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:italic;font-weight:400;src:url(/_astro/KaTeX_Main-Italic.NWA7e6Wa.woff2) format("woff2"),url(/_astro/KaTeX_Main-Italic.BMLOBm91.woff) format("woff"),url(/_astro/KaTeX_Main-Italic.3WenGoN9.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:normal;font-weight:400;src:url(/_astro/KaTeX_Main-Regular.B22Nviop.woff2) format("woff2"),url(/_astro/KaTeX_Main-Regular.Dr94JaBh.woff) format("woff"),url(/_astro/KaTeX_Main-Regular.ypZvNtVU.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Math;font-style:italic;font-weight:700;src:url(/_astro/KaTeX_Math-BoldItalic.CZnvNsCZ.woff2) format("woff2"),url(/_astro/KaTeX_Math-BoldItalic.iY-2wyZ7.woff) format("woff"),url(/_astro/KaTeX_Math-BoldItalic.B3XSjfu4.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Math;font-style:italic;font-weight:400;src:url(/_astro/KaTeX_Math-Italic.t53AETM-.woff2) format("woff2"),url(/_astro/KaTeX_Math-Italic.DA0__PXp.woff) format("woff"),url(/_astro/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(/_astro/KaTeX_SansSerif-Bold.D1sUS0GD.woff2) format("woff2"),url(/_astro/KaTeX_SansSerif-Bold.DbIhKOiC.woff) format("woff"),url(/_astro/KaTeX_SansSerif-Bold.CFMepnvq.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_SansSerif;font-style:italic;font-weight:400;src:url(/_astro/KaTeX_SansSerif-Italic.C3H0VqGB.woff2) format("woff2"),url(/_astro/KaTeX_SansSerif-Italic.DN2j7dab.woff) format("woff"),url(/_astro/KaTeX_SansSerif-Italic.YYjJ1zSn.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_SansSerif;font-style:normal;font-weight:400;src:url(/_astro/KaTeX_SansSerif-Regular.DDBCnlJ7.woff2) format("woff2"),url(/_astro/KaTeX_SansSerif-Regular.CS6fqUqJ.woff) format("woff"),url(/_astro/KaTeX_SansSerif-Regular.BNo7hRIc.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Script;font-style:normal;font-weight:400;src:url(/_astro/KaTeX_Script-Regular.D3wIWfF6.woff2) format("woff2"),url(/_astro/KaTeX_Script-Regular.D5yQViql.woff) format("woff"),url(/_astro/KaTeX_Script-Regular.C5JkGWo-.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size1;font-style:normal;font-weight:400;src:url(/_astro/KaTeX_Size1-Regular.mCD8mA8B.woff2) format("woff2"),url(/_astro/KaTeX_Size1-Regular.C195tn64.woff) format("woff"),url(/_astro/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(/_astro/KaTeX_Size2-Regular.Dy4dx90m.woff2) format("woff2"),url(/_astro/KaTeX_Size2-Regular.oD1tc_U0.woff) format("woff"),url(/_astro/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(/_astro/KaTeX_Size3-Regular.CTq5MqoE.woff) format("woff"),url(/_astro/KaTeX_Size3-Regular.DgpXs0kz.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size4;font-style:normal;font-weight:400;src:url(/_astro/KaTeX_Size4-Regular.Dl5lxZxV.woff2) format("woff2"),url(/_astro/KaTeX_Size4-Regular.BF-4gkZK.woff) format("woff"),url(/_astro/KaTeX_Size4-Regular.DWFBv043.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Typewriter;font-style:normal;font-weight:400;src:url(/_astro/KaTeX_Typewriter-Regular.CO6r4hn1.woff2) format("woff2"),url(/_astro/KaTeX_Typewriter-Regular.C0xS9mPB.woff) format("woff"),url(/_astro/KaTeX_Typewriter-Regular.D3Ib7_Hf.ttf) format("truetype")}.katex{font: 1.21em KaTeX_Main,Times New Roman,serif;line-height:1.2;text-indent:0;text-rendering:auto}.katex *{-ms-high-contrast-adjust:none!important;border-color:currentColor}.katex .katex-version:after{content:"0.16.28"}.katex .katex-mathml{clip:rect(1px,1px,1px,1px);border:0;height:1px;overflow:hidden;padding:0;position:absolute;width:1px}.katex .katex-html>.newline{display:block}.katex .base{position:relative;white-space:nowrap;width:-webkit-min-content;width:-moz-min-content;width:min-content}.katex .base,.katex .strut{display:inline-block}.katex .textbf{font-weight:700}.katex .textit{font-style:italic}.katex .textrm{font-family:KaTeX_Main}.katex .textsf{font-family:KaTeX_SansSerif}.katex .texttt{font-family:KaTeX_Typewriter}.katex .mathnormal{font-family:KaTeX_Math;font-style:italic}.katex .mathit{font-family:KaTeX_Main;font-style:italic}.katex .mathrm{font-style:normal}.katex .mathbf{font-family:KaTeX_Main;font-weight:700}.katex .boldsymbol{font-family:KaTeX_Math;font-style:italic;font-weight:700}.katex .amsrm,.katex .mathbb,.katex .textbb{font-family:KaTeX_AMS}.katex .mathcal{font-family:KaTeX_Caligraphic}.katex .mathfrak,.katex .textfrak{font-family:KaTeX_Fraktur}.katex .mathboldfrak,.katex .textboldfrak{font-family:KaTeX_Fraktur;font-weight:700}.katex .mathtt{font-family:KaTeX_Typewriter}.katex .mathscr,.katex .textscr{font-family:KaTeX_Script}.katex .mathsf,.katex .textsf{font-family:KaTeX_SansSerif}.katex .mathboldsf,.katex .textboldsf{font-family:KaTeX_SansSerif;font-weight:700}.katex .mathitsf,.katex .mathsfit,.katex .textitsf{font-family:KaTeX_SansSerif;font-style:italic}.katex .mainrm{font-family:KaTeX_Main;font-style:normal}.katex .vlist-t{border-collapse:collapse;display:inline-table;table-layout:fixed}.katex .vlist-r{display:table-row}.katex .vlist{display:table-cell;position:relative;vertical-align:bottom}.katex .vlist>span{display:block;height:0;position:relative}.katex .vlist>span>span{display:inline-block}.katex .vlist>span>.pstrut{overflow:hidden;width:0}.katex .vlist-t2{margin-right:-2px}.katex .vlist-s{display:table-cell;font-size:1px;min-width:2px;vertical-align:bottom;width:2px}.katex .vbox{align-items:baseline;display:inline-flex;flex-direction:column}.katex .hbox{width:100%}.katex .hbox,.katex .thinbox{display:inline-flex;flex-direction:row}.katex .thinbox{max-width:0;width:0}.katex .msupsub{text-align:left}.katex .mfrac>span>span{text-align:center}.katex .mfrac .frac-line{border-bottom-style:solid;display:inline-block;width:100%}.katex .hdashline,.katex .hline,.katex .mfrac .frac-line,.katex .overline .overline-line,.katex .rule,.katex .underline .underline-line{min-height:1px}.katex .mspace{display:inline-block}.katex .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;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;display:block;height:inherit;position:absolute;width:100%}.katex svg path{stroke:none}.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{--background: #ffffff;--foreground: #09090b;--card: #ffffff;--card-foreground: #09090b;--popover: #ffffff;--popover-foreground: #09090b;--primary: #18181b;--primary-foreground: #fafafa;--secondary: #f4f4f5;--secondary-foreground: #18181b;--muted: #f4f4f5;--muted-foreground: #71717a;--accent: #f4f4f5;--accent-foreground: #18181b;--destructive: #ef4444;--destructive-foreground: #fafafa;--border: #e4e4e7;--input: #e4e4e7;--ring: #18181b;--radius: .5rem;--shadow-sm: 0 1px 2px rgba(0, 0, 0, .05);--shadow-md: 0 4px 6px -1px rgba(0, 0, 0, .1), 0 2px 4px -2px rgba(0, 0, 0, .1);--shadow-card-hover: 0 8px 25px -5px rgba(0, 0, 0, .1), 0 4px 10px -6px rgba(0, 0, 0, .05);--route-transition-ms: .15s;--page-gutter: clamp(10px, 1.8vw, 28px)}.dark{--background: #09090b;--foreground: #fafafa;--card: #0a0a0c;--card-foreground: #fafafa;--popover: #0a0a0c;--popover-foreground: #fafafa;--primary: #fafafa;--primary-foreground: #18181b;--secondary: #27272a;--secondary-foreground: #fafafa;--muted: #27272a;--muted-foreground: #a1a1aa;--accent: #27272a;--accent-foreground: #fafafa;--destructive: #7f1d1d;--destructive-foreground: #fafafa;--border: #27272a;--input: #27272a;--ring: #d4d4d8;--shadow-sm: 0 1px 2px rgba(0, 0, 0, .3);--shadow-md: 0 4px 6px -1px rgba(0, 0, 0, .4), 0 2px 4px -2px rgba(0, 0, 0, .3);--shadow-card-hover: 0 8px 25px -5px rgba(0, 0, 0, .5), 0 4px 10px -6px rgba(0, 0, 0, .3)}*{box-sizing:border-box}html,body{margin:0;padding:0}html{overflow-y:scroll;overflow-x:hidden}body{min-height:100dvh;overflow-x:clip;color:var(--foreground);font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Microsoft YaHei,sans-serif;line-height:1.6;background-color:var(--background);background-image:radial-gradient(circle,color-mix(in srgb,var(--foreground) 6%,transparent) 1px,transparent 1px);background-size:24px 24px;background-position:0 0;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}@keyframes route-fade-in{0%{opacity:.95}to{opacity:1}}@keyframes route-fade-out{0%{opacity:1}to{opacity:.98}}::view-transition-old(root){animation:route-fade-out var(--route-transition-ms) ease}::view-transition-new(root){animation:route-fade-in var(--route-transition-ms) ease}a{color:inherit;text-decoration:none}a:hover{text-decoration:none}.container{width:min(1720px,calc(100% - (var(--page-gutter) * 2)));margin-inline:auto}a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible{outline:2px solid var(--ring);outline-offset:2px;border-radius:calc(var(--radius) - 2px)}.site-shell{min-height:100dvh;display:flex;flex-direction:column}.site-header{position:sticky;top:0;z-index:51;border-bottom:1px solid var(--border);backdrop-filter:blur(16px) saturate(180%);background:color-mix(in srgb,var(--background) 85%,transparent)}.header-inner{min-height:64px;display:flex;align-items:center;justify-content:space-between;gap:.75rem}.header-left,.header-right{display:flex;align-items:center;gap:.3rem}.header-left{min-width:0;flex:1 1 auto}.header-right{min-width:0;justify-content:flex-end;flex:0 0 auto}.header-search{min-width:180px;width:min(320px,34vw);margin-right:.35rem;position:relative;z-index:95}.header-search input{width:100%;height:36px;border:1px solid var(--input);border-radius:calc(var(--radius) - 2px);background:transparent;font-size:.875rem;padding:0 .75rem;color:var(--foreground);outline:none;transition:border-color .15s ease,box-shadow .15s ease}.header-search input::placeholder{color:var(--muted-foreground)}.header-search-kbd{position:absolute;right:8px;top:50%;transform:translateY(-50%);display:inline-flex;align-items:center;gap:2px;pointer-events:none;user-select:none}.header-search-kbd span{display:inline-flex;align-items:center;justify-content:center;min-width:20px;height:20px;padding:0 4px;border:1px solid var(--border);border-radius:4px;background:var(--accent);color:var(--muted-foreground);font-family:inherit;font-size:.65rem;font-weight:500;line-height:1}.header-search input:focus~.header-search-kbd,.header-search.is-open .header-search-kbd{display:none}.header-search input:focus{border-color:var(--ring);box-shadow:0 0 0 2px var(--background),0 0 0 4px var(--ring)}.header-search input:focus-visible,.search-console-input:focus-visible,.article-inline-search-input:focus-visible{outline:none}.header-search.is-open input{border-color:var(--ring);box-shadow:0 0 0 2px var(--background),0 0 0 4px var(--ring)}.header-search-panel{position:fixed;top:72px;left:50%;transform:translate(-50%);width:min(560px,calc(100vw - 2rem));border:1px solid var(--border);border-radius:var(--radius);background:var(--popover);color:var(--popover-foreground);box-shadow:0 10px 15px -3px #0000001a,0 4px 6px -4px #0000001a;z-index:97;overflow:hidden;padding-top:.25rem}.header-search-backdrop{position:fixed;inset:0;background:#0000000f;backdrop-filter:blur(2px);z-index:96}.header-search-list{margin:0 0 .24rem;padding:.35rem .35rem .42rem;list-style:none}.header-search-list li+li{margin-top:.2rem}.header-search-section-label{margin:.08rem .12rem .1rem;padding:.24rem .5rem;font-size:.75rem;font-weight:500;letter-spacing:.02em;color:var(--muted-foreground)}.header-search-list a{display:grid;gap:.12rem;border-radius:calc(var(--radius) - 2px);padding:.5rem;transition:background .15s ease}.header-search-list a:hover,.header-search-list a.is-active{background:var(--accent)}.header-search-list a strong{font-size:.875rem;font-weight:500;color:var(--foreground);line-height:1.35}.header-search-list a small{font-size:.75rem;color:var(--muted-foreground);line-height:1.35}.header-search-empty{color:var(--muted-foreground);font-size:.875rem;padding:.5rem}.brand{display:inline-flex;align-items:center;gap:.55rem;color:var(--foreground);padding-right:.28rem}.brand-word{font-family:"Source Serif 4",Times New Roman,serif;font-size:1.12rem;font-weight:650;letter-spacing:.01em}.brand-glyph{width:22px;height:22px;position:relative;display:inline-block}.brand-glyph .stroke{position:absolute;width:12px;height:3px;border-radius:999px;background:var(--foreground);left:4px}.brand-glyph .s1{top:5px;transform:rotate(-46deg)}.brand-glyph .s2{top:12px;transform:rotate(-46deg)}.brand-glyph .s3{top:8px;left:8px;width:10px;transform:rotate(-38deg);opacity:.92}.brand-mark{color:var(--muted-foreground);margin-inline:.1rem}.main-nav{display:inline-flex;gap:.125rem;padding-left:.25rem;min-width:0}.main-nav a{display:inline-flex;align-items:center;justify-content:center;white-space:nowrap;border-radius:calc(var(--radius) - 2px);color:var(--muted-foreground);padding:.375rem .75rem;font-size:.875rem;font-weight:500;transition:color .15s ease,background .15s ease}.main-nav a:hover{color:var(--accent-foreground);background:var(--accent)}.main-nav a.active{color:var(--foreground);background:var(--accent);font-weight:600}.header-link{color:var(--muted-foreground);font-size:.875rem;font-weight:500;border-radius:calc(var(--radius) - 2px);padding:.375rem .5rem;transition:color .15s ease,background .15s ease}.header-link:hover{color:var(--accent-foreground);background:var(--accent)}.lang-toggle{display:inline-flex;align-items:center;justify-content:center;height:36px;min-width:40px;padding:0 .6rem;border:1px solid var(--border);border-radius:calc(var(--radius) - 2px);background:transparent;color:var(--foreground);font-size:.8rem;font-weight:600;letter-spacing:.02em;cursor:pointer;transition:background .15s ease,border-color .15s ease}.lang-toggle:hover{background:var(--accent);border-color:var(--ring)}.header-cta{display:inline-flex;align-items:center;justify-content:center;height:36px;border-radius:calc(var(--radius) - 2px);background:var(--primary);color:var(--primary-foreground);border:1px solid var(--primary);padding:0 1rem;font-size:.875rem;font-weight:500;transition:background .2s ease,box-shadow .2s ease}.header-cta:hover{background:color-mix(in srgb,var(--primary) 90%,var(--primary-foreground));box-shadow:0 1px 3px #0003}.theme-toggle{display:inline-flex;align-items:center;justify-content:center;width:36px;height:36px;padding:0;border:1px solid var(--border);border-radius:calc(var(--radius) - 2px);background:transparent;color:var(--muted-foreground);cursor:pointer;transition:color .15s ease,background .15s ease,border-color .15s ease}.theme-toggle:hover{color:var(--foreground);background:var(--accent);border-color:color-mix(in srgb,var(--border) 70%,var(--foreground))}.theme-icon-moon,.dark .theme-icon-sun{display:none}.dark .theme-icon-moon{display:block}.mobile-menu-btn{display:none;align-items:center;justify-content:center;width:36px;height:36px;padding:0;border:1px solid var(--border);border-radius:calc(var(--radius) - 2px);background:transparent;cursor:pointer;flex-direction:column;gap:4px}.hamburger-line{display:block;width:16px;height:2px;background:var(--foreground);border-radius:1px;transition:transform .2s ease,opacity .2s ease}.mobile-menu-btn.is-open .hamburger-line:nth-child(1){transform:translateY(6px) rotate(45deg)}.mobile-menu-btn.is-open .hamburger-line:nth-child(2){opacity:0}.mobile-menu-btn.is-open .hamburger-line:nth-child(3){transform:translateY(-6px) rotate(-45deg)}.mobile-drawer{display:none;position:fixed;inset:0;z-index:50;background:var(--background);padding:5rem 1.5rem 2rem;flex-direction:column;gap:2rem;overflow-y:auto}.mobile-drawer:not([hidden]){display:flex}.mobile-drawer-nav{display:flex;flex-direction:column;gap:.25rem}.mobile-drawer-nav a{display:block;padding:.75rem .5rem;font-size:1.125rem;font-weight:500;color:var(--muted-foreground);border-radius:var(--radius);transition:color .15s ease,background .15s ease}.mobile-drawer-nav a:hover,.mobile-drawer-nav a.active{color:var(--foreground);background:var(--accent)}.mobile-drawer-links{display:flex;gap:1rem;padding:1.25rem .5rem .5rem;border-top:1px solid var(--border)}.mobile-drawer-links a{color:var(--muted-foreground);font-size:.875rem;font-weight:500;transition:color .15s ease}.mobile-drawer-links a:hover{color:var(--foreground)}.page-main{width:100%;padding-block:2rem 3rem;flex:1;background:linear-gradient(180deg,color-mix(in srgb,var(--background) 92%,transparent) 0%,color-mix(in srgb,var(--background) 96%,transparent) 50%,var(--background) 100%)}.page-main-home{padding-top:.62rem}.home-intro{width:min(980px,100%);margin:0 auto 1.2rem;text-align:center;padding-top:.5rem}.home-intro-badge{display:inline-flex;margin:0;border:1px solid var(--border);border-radius:999px;background:var(--background);color:var(--muted-foreground);font-size:.8125rem;font-weight:500;padding:.25rem .75rem;box-shadow:var(--shadow-sm)}.home-intro h1{margin:.75rem 0 .5rem;font-size:clamp(2.25rem,5.5vw,4rem);line-height:1;letter-spacing:-.03em;font-weight:800;color:var(--foreground)}.home-intro p{margin:0 auto;color:var(--muted-foreground);font-size:clamp(1rem,1.6vw,1.25rem);max-width:600px;line-height:1.6}.home-intro-actions{margin-top:1rem;display:inline-flex;align-items:center;gap:.8rem}.home-intro-link{display:inline-flex;align-items:center;gap:.375rem;height:36px;border-radius:calc(var(--radius) - 2px);border:1px solid var(--border);background:var(--background);color:var(--foreground);font-weight:500;font-size:.875rem;padding:0 1rem;box-shadow:var(--shadow-sm);transition:background .15s ease,border-color .15s ease}.home-intro-link:hover{background:var(--accent);border-color:color-mix(in srgb,var(--border) 70%,var(--foreground))}.home-hero-wrap{width:100%;margin-inline:auto}.home-hero-wrap .hero-stage{margin-bottom:0}.hero-stage{position:relative;isolation:isolate;min-height:clamp(380px,56vh,580px);background:transparent;overflow:hidden;margin-bottom:0}.hero-stage:after{content:"";position:absolute;inset:auto 0 0;height:120px;background:linear-gradient(180deg,transparent 0%,var(--background) 100%);pointer-events:none;z-index:6}.hero-canvas{position:absolute;inset:0;width:100%;height:100%;z-index:4;pointer-events:none}.hero-fallback-title{position:absolute;left:50%;top:46%;transform:translate(-50%,-50%);margin:0;font-size:clamp(1.2rem,2.3vw,2.2rem);letter-spacing:.28em;font-weight:500;color:#18181b;text-transform:uppercase;white-space:nowrap;opacity:1;transition:opacity .24s ease;z-index:5}.hero-stage.is-animated .hero-fallback-title{opacity:0}.hero-fallback-title.is-visible{opacity:1}.hero-fallback-title strong{font-weight:500;background:linear-gradient(90deg,#1f2937,#4b5563 22%,#d97706 40%,#dc2626 54%,#65a30d,#0284c7 86%,#7c3aed);-webkit-background-clip:text;background-clip:text;color:transparent}.hero-copy-card{position:absolute;left:50%;top:38%;--copy-progress: 0;transform:translate(-50%,-50%) translateY(calc((1 - var(--copy-progress)) * 16px));width:min(760px,calc(100% - 2rem));border:none;background:transparent;border-radius:14px;text-align:center;padding:clamp(1rem,2vw,1.5rem) clamp(.9rem,2.5vw,1.6rem);box-shadow:none;backdrop-filter:none;opacity:var(--copy-progress);transition:opacity .18s linear,transform .18s linear;z-index:5;pointer-events:none}.hero-copy-card.is-visible{pointer-events:auto}.hero-copy-card h1{margin:0;color:var(--foreground);font-size:clamp(1.5rem,4vw,2.7rem);line-height:1.08;letter-spacing:-.02em}.hero-copy-card h1.hero-title-gradient{background:linear-gradient(90deg,#33496f,#5f79ab 15%,#df9f52 33%,#c76064 50%,#76a84b,#33a2c9 82%,#7054a8);-webkit-background-clip:text;background-clip:text;color:transparent}.dark .hero-copy-card h1.hero-title-gradient{background:linear-gradient(90deg,#5f79ab,#8da4cc 15%,#df9f52 33%,#c76064 50%,#76a84b,#33a2c9 82%,#7054a8);-webkit-background-clip:text;background-clip:text;color:transparent}.hero-copy-card p{margin:.55rem auto 0;max-width:560px;color:var(--muted-foreground);font-size:clamp(.92rem,1.5vw,1.05rem)}.hero-copy-actions{margin-top:.9rem;display:inline-flex;align-items:center;gap:.75rem;opacity:calc(var(--copy-progress) * var(--copy-progress));transform:translateY(calc((1 - var(--copy-progress)) * 8px));transition:opacity .18s linear,transform .18s linear}.hero-cta-primary{display:inline-flex;align-items:center;justify-content:center;padding:.6rem 1.8rem;border:1px solid var(--border);border-radius:8px;background:color-mix(in srgb,var(--background) 80%,transparent);color:var(--foreground);font-size:.88rem;font-weight:600;letter-spacing:.04em;backdrop-filter:blur(6px);transition:background .18s ease,border-color .18s ease}.hero-cta-primary:hover{background:var(--accent);border-color:color-mix(in srgb,var(--border) 60%,var(--foreground))}.section-head{display:flex;align-items:center;justify-content:space-between;gap:1rem;margin:1rem 0 .75rem}.section-stack{margin-top:1rem}.section-stack-wide{margin-top:.9rem}.section-head h2{margin:0;font-size:1rem;font-weight:700;letter-spacing:-.02em;color:var(--foreground)}.section-head a{font-size:.8125rem;font-weight:500;color:var(--muted-foreground);transition:color .15s ease}.section-head a:hover{color:var(--foreground);text-decoration:underline;text-underline-offset:4px}.post-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(300px,100%),1fr));gap:.9rem}.post-grid-wide{grid-template-columns:repeat(auto-fit,minmax(min(320px,100%),1fr))}.post-list{display:grid;grid-template-columns:1fr;gap:.82rem}.post-card{position:relative;border:1px solid var(--border);border-radius:var(--radius);padding:1.25rem;cursor:pointer;background:var(--card);color:var(--card-foreground);box-shadow:var(--shadow-sm);transition:border-color .2s ease,box-shadow .2s ease,transform .2s ease;min-width:0}.post-card:hover{border-color:color-mix(in srgb,var(--border) 70%,var(--foreground));box-shadow:var(--shadow-card-hover);transform:translateY(-2px)}.post-card-topline{display:flex;justify-content:space-between;gap:.75rem;color:var(--muted-foreground);font-size:.75rem}.post-card h2{margin:.5rem 0 .25rem;font-size:clamp(1.125rem,2.2vw,1.5rem);line-height:1.2;letter-spacing:-.025em;font-weight:700}.post-card h2 a{color:var(--card-foreground)}.post-card h2 a:after{content:"";position:absolute;inset:0;z-index:0}.post-card .tag-list{position:relative;z-index:1}.post-card p{margin:0;color:var(--muted-foreground);font-size:.875rem;line-height:1.5}.post-card-link{position:relative;z-index:1;display:inline-flex;align-items:center;gap:.25rem;margin-top:.75rem;font-size:.8125rem;font-weight:500;color:var(--foreground);transition:gap .2s ease}.post-card-link:after{content:"→";font-size:.875rem;transition:transform .2s ease}.post-card-link:hover{gap:.5rem}.post-card-link:hover:after{transform:translate(2px)}.post-card-featured{padding:1.05rem}.post-card-featured h2{font-size:clamp(1.15rem,2.6vw,1.5rem)}.tag-list,.tag-cloud{list-style:none;margin:.75rem 0 0;padding:0;display:flex;flex-wrap:wrap;gap:.375rem}.tag-list a,.tag-cloud a{display:inline-flex;align-items:center;gap:.375rem;border:1px solid var(--border);border-radius:999px;padding:.1875rem .625rem;font-size:.75rem;font-weight:500;color:var(--muted-foreground);background:var(--background);transition:background .15s ease,color .15s ease,border-color .15s ease,transform .15s ease,box-shadow .15s ease}.tag-list a:hover,.tag-cloud a:hover{background:var(--accent);color:var(--foreground);border-color:color-mix(in srgb,var(--border) 70%,var(--foreground));transform:translateY(-1px);box-shadow:0 2px 4px color-mix(in srgb,var(--foreground) 6%,transparent)}.tag-cloud small{color:var(--muted-foreground)}.page-intro{margin-bottom:1rem}.page-intro p{margin:0;color:var(--muted-foreground)}.page-intro h1{margin:.15rem 0 .34rem;font-size:clamp(2rem,4.5vw,3.1rem);line-height:.98;letter-spacing:-.02em}.page-masthead{margin:.35rem 0 1.15rem;padding:.4rem 0 .1rem;display:grid;grid-template-columns:minmax(0,1.2fr) minmax(260px,.72fr);gap:.9rem 1.05rem;align-items:start}.page-masthead-main{min-width:0}.page-masthead-kicker{margin:0;color:var(--muted-foreground);font-size:.6875rem;font-weight:600;letter-spacing:.05em;text-transform:uppercase}.page-masthead-main h1{margin:.12rem 0 .34rem;font-size:clamp(2rem,4.5vw,3rem);line-height:1.05;letter-spacing:-.03em;font-weight:800;color:var(--foreground)}.page-masthead-subtitle{margin:0;max-width:58ch;color:var(--muted-foreground);font-size:clamp(.875rem,1.2vw,1rem);line-height:1.6}.page-masthead-side{border:1px solid var(--border);border-radius:var(--radius);background:var(--card);box-shadow:var(--shadow-sm);padding:1rem;transition:border-color .2s ease,box-shadow .2s ease,transform .2s ease}.page-masthead-side:hover{border-color:#d4d4d8;box-shadow:var(--shadow-card-hover);transform:translateY(-2px)}.page-masthead-side-kicker{margin:0;color:var(--muted-foreground);font-size:.6875rem;font-weight:600;letter-spacing:.05em;text-transform:uppercase}.page-masthead-side h2{margin:.25rem 0;font-size:1rem;font-weight:600;line-height:1.3;color:var(--foreground)}.page-masthead-side p{margin:0;color:var(--muted-foreground);font-size:.875rem;line-height:1.6}.page-masthead-metrics{grid-column:1 / -1;display:flex;flex-wrap:wrap;gap:.48rem}.page-masthead-metrics span{display:inline-flex;align-items:baseline;gap:.375rem;border:1px solid var(--border);border-radius:999px;background:var(--background);padding:.25rem .625rem}.page-masthead-metrics strong{color:var(--foreground);font-size:.8125rem;font-weight:600;line-height:1}.page-masthead-metrics em{color:var(--muted-foreground);font-size:.75rem;font-style:normal;line-height:1}.search-page{padding-bottom:.5rem}.search-console{margin:.35rem 0 .9rem;display:flex;align-items:center;gap:.66rem}.search-console-input{flex:1;height:40px;border:1px solid var(--input);border-radius:calc(var(--radius) - 2px);background:transparent;color:var(--foreground);font-size:.875rem;outline:none;padding:0 .75rem;transition:border-color .15s ease,box-shadow .15s ease}.search-console-input:focus{border-color:var(--ring);box-shadow:0 0 0 2px var(--background),0 0 0 4px var(--ring)}.search-meta{margin:0;color:var(--muted-foreground);font-size:.875rem}.search-hot{border:1px solid var(--border);border-radius:var(--radius);background:var(--card);box-shadow:var(--shadow-sm);padding:1rem;margin-bottom:1rem}.search-hot-hint{margin:0 0 .75rem;color:var(--muted-foreground);font-size:.8125rem}.search-chip-list{display:flex;flex-wrap:wrap;gap:.5rem}.search-chip,.search-tag-chip{display:inline-flex;align-items:center;border:1px solid var(--border);border-radius:999px;background:var(--background);color:var(--muted-foreground);font-size:.75rem;font-weight:500;line-height:1;padding:.3rem .625rem}.search-chip{cursor:pointer;transition:background .15s ease,border-color .15s ease,color .15s ease}.search-chip:hover{background:var(--accent);border-color:#d4d4d8;color:var(--foreground)}.search-hot-empty{color:var(--muted-foreground);font-size:.875rem}.surface-card{border:1px solid var(--border);border-radius:var(--radius);background:var(--card);color:var(--card-foreground);padding:1.25rem;box-shadow:var(--shadow-sm);transition:border-color .2s ease,box-shadow .2s ease,transform .2s ease}.surface-card:hover{border-color:color-mix(in srgb,var(--border) 70%,var(--foreground));box-shadow:var(--shadow-card-hover);transform:translateY(-2px)}.surface-kicker{margin:0;color:var(--muted-foreground);font-size:.6875rem;font-weight:600;letter-spacing:.05em;text-transform:uppercase}.surface-card h2,.surface-card h3{margin:.375rem 0 .25rem;line-height:1.2;font-weight:600;color:var(--foreground)}.surface-card h2{font-size:clamp(1.25rem,2.5vw,1.75rem)}.surface-card h3{font-size:1rem}.surface-card p{margin:0;color:var(--muted-foreground);font-size:.875rem;line-height:1.5}.surface-meta-row{margin-top:.75rem;display:flex;flex-wrap:wrap;gap:.375rem}.surface-meta-row span{display:inline-flex;border:1px solid var(--border);border-radius:999px;padding:.125rem .5rem;font-size:.75rem;font-weight:500;color:var(--muted-foreground);background:var(--background)}.surface-inline-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:.85rem;margin-bottom:1rem}.surface-inline-grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}.surface-card-fixed{min-height:164px}.home-content-shell{width:min(1320px,100%);margin-inline:auto}.home-featured{margin-top:1.25rem}.home-featured-card{display:block;position:relative;padding:1.75rem 2rem;border:1px solid var(--border);border-radius:var(--radius);background:var(--card);transition:border-color .2s ease,box-shadow .2s ease,transform .2s ease}.home-featured-card:hover{border-color:color-mix(in srgb,var(--border) 60%,var(--foreground));box-shadow:var(--shadow-card-hover);transform:translateY(-2px)}.home-featured-badge{display:inline-block;padding:.2rem .6rem;font-size:.7rem;font-weight:600;letter-spacing:.04em;text-transform:uppercase;color:var(--muted-foreground);border:1px solid var(--border);border-radius:999px;margin-bottom:.75rem}.home-featured-card h2{margin:0;font-size:clamp(1.25rem,3vw,1.75rem);font-weight:700;line-height:1.2;letter-spacing:-.02em;color:var(--foreground)}.home-featured-card p{margin:.5rem 0 0;color:var(--muted-foreground);font-size:.9rem;line-height:1.55;max-width:640px}.home-featured-meta{display:block;margin-top:.75rem;font-size:.75rem;color:var(--muted-foreground)}.home-about-card{margin-top:1.5rem;padding:1.5rem 1.75rem;border:1px solid var(--border);border-radius:var(--radius);background:var(--card)}.home-about-inner{display:flex;align-items:center;justify-content:space-between;gap:1.5rem;flex-wrap:wrap}.home-about-text h3{margin:0;font-size:1.1rem;font-weight:700;color:var(--foreground)}.home-about-text p{margin:.25rem 0 0;color:var(--muted-foreground);font-size:.875rem}.home-about-links{display:flex;gap:1rem}.home-about-links a{font-size:.8125rem;font-weight:500;color:var(--muted-foreground);transition:color .15s ease}.home-about-links a:hover{color:var(--foreground)}.tag-cloud-home{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:.5rem}.tag-cloud-home a{display:inline-flex;align-items:center;gap:.35rem;padding:.4rem .75rem;border-radius:999px;font-size:.8125rem;font-weight:500;transition:transform .15s ease,box-shadow .15s ease;border:none}.tag-cloud-home a:hover{transform:translateY(-1px);box-shadow:0 2px 8px #00000014}.tag-cloud-home small{font-size:.7rem;opacity:.7}.tag-blue{background:#dbeafe;color:#1e40af}.tag-amber{background:#fef3c7;color:#92400e}.tag-green{background:#dcfce7;color:#166534}.tag-rose{background:#ffe4e6;color:#9f1239}.tag-violet{background:#ede9fe;color:#5b21b6}.tag-cyan{background:#cffafe;color:#155e75}.tag-orange{background:#ffedd5;color:#9a3412}.tag-emerald{background:#d1fae5;color:#065f46}.tag-pink{background:#fce7f3;color:#9d174d}.tag-indigo{background:#e0e7ff;color:#3730a3}.tag-yellow{background:#fef9c3;color:#854d0e}.tag-teal{background:#ccfbf1;color:#134e4a}.dark .tag-blue{background:#3b82f626;color:#93c5fd}.dark .tag-amber{background:#f59e0b26;color:#fcd34d}.dark .tag-green{background:#22c55e26;color:#86efac}.dark .tag-rose{background:#f43f5e26;color:#fda4af}.dark .tag-violet{background:#8b5cf626;color:#c4b5fd}.dark .tag-cyan{background:#06b6d426;color:#67e8f9}.dark .tag-orange{background:#f9731626;color:#fdba74}.dark .tag-emerald{background:#10b98126;color:#6ee7b7}.dark .tag-pink{background:#ec489926;color:#f9a8d4}.dark .tag-indigo{background:#6366f126;color:#a5b4fc}.dark .tag-yellow{background:#eab30826;color:#fde047}.dark .tag-teal{background:#14b8a626;color:#5eead4}.home-main-grid{display:grid;grid-template-columns:minmax(0,1.6fr) minmax(280px,.9fr);gap:.95rem}.home-main-grid--single{grid-template-columns:1fr;align-items:start;margin-top:.2rem}.home-main-col,.home-side-col{min-width:0;display:flex;flex-direction:column}.home-main-grid .section-stack{display:flex;flex-direction:column;height:100%}.home-main-grid .post-list{height:100%}.home-main-grid .post-list>.post-card{height:100%;display:flex;flex-direction:column}.home-main-grid .post-list>.post-card .post-card-link{margin-top:auto}.posts-index-page .post-grid{position:relative}.tag-card-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:.8rem}.tag-card a{display:block}.tag-card h3{font-size:1.1rem}.page-intro-center,.back-link-center,.tag-cloud-center{text-align:center;justify-content:center}.page-center{max-width:920px;margin-inline:auto}.page-center-wide{max-width:1080px}.page-center-narrow{max-width:760px}.back-link{margin:.3rem 0 1rem}.back-link a{color:var(--muted-foreground);font-size:.875rem;font-weight:500;transition:color .15s ease}.back-link a:hover{color:var(--foreground)}.article-shell{max-width:1240px;margin-inline:auto;display:grid;grid-template-columns:minmax(180px,220px) minmax(0,760px) minmax(180px,220px);justify-content:center;gap:1.5rem}.post-nav{grid-column:2;max-width:760px;display:grid;grid-template-columns:1fr 1fr;gap:1rem;margin-top:2.5rem;padding-top:1.5rem;border-top:1px solid var(--border)}.post-nav-card{display:flex;flex-direction:column;gap:.35rem;padding:1rem 1.2rem;border:1px solid var(--border);border-radius:var(--radius);background:var(--card);transition:border-color .2s ease,box-shadow .2s ease,transform .2s ease}.post-nav-card:hover{border-color:color-mix(in srgb,var(--border) 70%,var(--foreground));box-shadow:var(--shadow-card-hover);transform:translateY(-2px)}.post-nav-next{text-align:right}.post-nav-label{font-size:.75rem;font-weight:500;color:var(--muted-foreground)}.post-nav-title{font-size:.9rem;font-weight:600;color:var(--foreground);line-height:1.35}.posts-year-group{margin-top:1.5rem}.posts-year-group:first-of-type{margin-top:0}.posts-year-label{margin:0 0 .75rem;font-size:1.5rem;font-weight:700;letter-spacing:-.02em;color:var(--foreground);padding-bottom:.4rem;border-bottom:1px solid var(--border)}.article-search-band{grid-column:2;padding-bottom:.75rem;border-bottom:1px solid var(--border);margin-bottom:.1rem}.article-inline-search{grid-column:2;position:relative;display:flex;align-items:center;gap:.54rem}.article-inline-search-input{flex:1;min-width:0;border:none;background:transparent;color:var(--foreground);font-size:clamp(1rem,1.4vw,1.125rem);line-height:1.2;padding:.1rem 0;outline:none}.article-inline-search-input::placeholder{color:var(--muted-foreground)}.article-inline-search-icon{font-size:1.25rem;color:var(--muted-foreground);transform:translateY(-1px)}.article-inline-search-panel{position:absolute;top:calc(100% + .8rem);left:0;width:min(100%,1020px);border:1px solid var(--border);border-radius:var(--radius);background:var(--popover);color:var(--popover-foreground);box-shadow:var(--shadow-md);padding:.5rem;z-index:22}.article-inline-search-list{margin:0;padding:0;list-style:none}.article-inline-search-list li+li{margin-top:.48rem}.article-inline-search-list a{display:block;border:1px solid var(--border);border-radius:calc(var(--radius) - 2px);background:var(--card);padding:.75rem .875rem;color:var(--foreground);text-decoration:none;transition:border-color .15s ease,background .15s ease}.article-inline-search-list a strong{display:block;font-size:.875rem;font-weight:500;line-height:1.35}.article-inline-search-list a small{display:block;margin-top:.25rem;color:var(--muted-foreground);font-size:.8125rem;line-height:1.5}.article-inline-search-list a:hover,.article-inline-search-list a.is-active{border-color:#d4d4d8;background:var(--accent)}.article-inline-search-empty{color:var(--muted-foreground);font-size:.875rem;padding:.5rem .25rem .25rem}.article-main{grid-column:2;min-width:0}.article-header h1{margin:.5rem 0;font-size:clamp(1.5rem,4vw,2.25rem);line-height:1.15;letter-spacing:-.02em;font-weight:700}.article-meta,.article-description{margin:0;color:var(--muted-foreground);font-size:.875rem}.toc-box{grid-column:3;margin:0;margin-left:.6rem;padding:.1rem 0 .1rem .96rem;border-left:1px solid var(--border);background:transparent;border-radius:0;position:sticky;top:90px;align-self:start;max-height:calc(100dvh - 120px);overflow:auto}.toc-box p{margin:0;font-size:.75rem;font-weight:500;color:var(--muted-foreground);letter-spacing:.02em}.toc-box ul{margin:.5rem 0 0;padding:0;list-style:none}.toc-box li+li{margin-top:.18rem}.toc-box .toc-depth-3{padding-left:.72rem}.toc-box a{color:var(--muted-foreground);display:inline-flex;width:100%;border-radius:0;padding:.14rem .1rem .14rem .56rem;margin-left:-.96rem;border-left:2px solid transparent;font-size:.8125rem;line-height:1.4;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;transition:color .15s ease,border-color .15s ease}.toc-box a:hover{color:var(--foreground);border-left-color:var(--border)}.toc-box a[aria-current=true]{color:var(--foreground);border-left-color:var(--foreground);font-weight:600}.toc-mobile{display:none;margin-top:1rem;border:1px solid var(--border);border-radius:var(--radius);background:var(--card);padding:.75rem .875rem}.toc-mobile>summary{list-style:none;cursor:pointer;font-size:.8125rem;font-weight:500;color:var(--foreground)}.toc-mobile>summary::-webkit-details-marker{display:none}.toc-mobile ul{margin:.66rem 0 0;padding:0;list-style:none}.toc-mobile li+li{margin-top:.28rem}.toc-mobile .toc-depth-3{padding-left:.84rem}.toc-mobile a{display:inline-flex;width:100%;border-radius:calc(var(--radius) - 4px);padding:.18rem .34rem;color:var(--muted-foreground);transition:color .15s ease,background .15s ease}.toc-mobile a[aria-current=true]{color:var(--foreground);background:var(--accent);font-weight:600}.prose-flow{margin-top:1.25rem;color:var(--foreground);--prose-accent: #18181b;--prose-accent-soft: #f4f4f5;--prose-code-bg: var(--muted);--prose-code-border: var(--border);--prose-code-fg: var(--foreground)}.prose-flow>*+*{margin-top:1.35rem}.prose-flow h2,.prose-flow h3{margin-top:2rem;margin-bottom:.5rem;line-height:1.15;font-weight:700;letter-spacing:-.03em;color:var(--foreground)}.prose-flow h2{font-size:clamp(1.25rem,3vw,1.625rem);padding-bottom:.35rem;border-bottom:none}.prose-flow h3{font-size:clamp(1.125rem,2.5vw,1.375rem)}.prose-flow p,.prose-flow li{color:var(--foreground);line-height:1.8}.prose-flow a{color:#b45309;font-weight:500;text-decoration:underline;text-underline-offset:4px;text-decoration-color:#b453094d;transition:color .15s ease,text-decoration-color .15s ease}.prose-flow a:hover,.prose-flow a:focus-visible{color:#92400e;text-decoration-color:#92400e}.dark .prose-flow a{color:#d97706;text-decoration-color:#d9770659}.dark .prose-flow a:hover,.dark .prose-flow a:focus-visible{color:#f59e0b;text-decoration-color:#f59e0b}.prose-flow ul,.prose-flow ol{padding-left:1.25rem}.prose-flow li::marker{color:var(--prose-accent)}.prose-flow img{display:block;max-width:100%;width:auto;height:auto;border-radius:var(--radius)}.prose-flow .katex-display{max-width:100%;overflow-x:auto;overflow-y:hidden;-webkit-overflow-scrolling:touch}.prose-flow .katex-display>.katex{min-width:max-content}.prose-flow table{width:100%;border-collapse:collapse;border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;display:table;background:var(--card)}.prose-flow th,.prose-flow td{border-bottom:1px solid var(--border);padding:.625rem .75rem;text-align:left;min-width:120px;font-size:.875rem}.prose-flow th{background:var(--muted);color:var(--foreground);font-weight:600;font-size:.8125rem}.prose-flow tr:nth-child(2n) td{background:var(--muted)}.prose-flow pre{margin:1rem 0;border-radius:var(--radius);border:1px solid var(--border);background:var(--muted)!important;padding:.875rem 1rem;position:relative;overflow:auto}.dark .prose-flow pre code,.dark .prose-flow pre code span{color:#e4e4e7!important}.prose-flow code{font-family:JetBrains Mono,Fira Code,Cascadia Code,Consolas,monospace}.prose-flow pre code{display:block}.prose-flow :not(pre)>code{border:1px solid var(--prose-code-border);border-radius:calc(var(--radius) - 4px);padding:.125rem .375rem;background:var(--prose-code-bg);color:var(--prose-code-fg);font-weight:500;font-size:.875em}.prose-flow strong{color:var(--foreground);font-weight:600}.prose-flow blockquote{margin:1rem 0;padding:.75rem 1rem;border-left:2px solid var(--border);border-radius:0;background:transparent;color:var(--muted-foreground);font-style:italic}.heading-anchor{margin-left:.34rem;color:var(--muted-foreground);opacity:0;transition:opacity .15s ease}h2:hover .heading-anchor,h3:hover .heading-anchor{opacity:1}.code-copy-btn{position:absolute;top:.5rem;right:.5rem;border:0;background:transparent;color:var(--muted-foreground);border-radius:calc(var(--radius) - 2px);padding:.25rem .5rem;font-size:.75rem;font-weight:500;line-height:1.2;cursor:pointer;transition:color .15s ease,background .15s ease}.code-copy-btn:hover{color:var(--foreground);background:var(--accent)}.code-copy-btn:focus-visible{outline:2px solid var(--ring);outline-offset:2px}.chart-frame{width:100%;min-height:320px;border-radius:var(--radius);border:1px solid var(--border);background:var(--card)}.chart-error{border:1px solid var(--destructive);background:#fef2f2;color:#991b1b;padding:1rem;border-radius:var(--radius)}.site-footer{border-top:1px solid var(--border);background:var(--card)}.footer-grid{display:grid;grid-template-columns:1.5fr repeat(3,1fr);gap:2rem;padding-block:3rem 2rem;align-items:start}.footer-brand{display:flex;flex-direction:column;gap:.5rem}.footer-logo{font-family:"Source Serif 4",Times New Roman,serif;font-size:1.25rem;font-weight:700;color:var(--foreground)}.footer-tagline{margin:0;color:var(--muted-foreground);font-size:.875rem;max-width:240px;line-height:1.5}.footer-col h3{margin:0 0 .75rem;font-size:.8125rem;font-weight:600;color:var(--foreground);letter-spacing:.01em}.footer-col ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:.5rem}.footer-col li{font-size:.8125rem;color:var(--muted-foreground)}.footer-col a{color:var(--muted-foreground);transition:color .15s ease}.footer-col a:hover{color:var(--foreground)}.footer-bottom{padding-block:1.25rem 2rem;border-top:1px solid var(--border)}.footer-bottom p{margin:0;color:var(--muted-foreground);font-size:.75rem}@media(max-width:940px){.footer-grid{grid-template-columns:1fr 1fr;gap:1.5rem}.header-inner{min-height:56px;align-items:center;padding-top:0;padding-bottom:0}.main-nav,.header-link-desktop{display:none}.mobile-menu-btn{display:flex}.header-search{min-width:0;width:min(200px,30vw)}.header-right{align-items:center}.home-intro{margin-bottom:.9rem}.home-intro-actions{margin-top:.85rem}.home-content-shell{width:100%;padding-inline:var(--page-gutter)}.surface-inline-grid-3{grid-template-columns:1fr}.surface-card-fixed{min-height:auto}.home-main-grid{grid-template-columns:1fr;gap:.82rem}.search-console{flex-direction:column;align-items:stretch}.surface-inline-grid{grid-template-columns:1fr}.page-masthead{grid-template-columns:1fr;gap:.72rem;margin-bottom:.95rem}.page-masthead-main h1{font-size:clamp(1.72rem,6.4vw,2.35rem)}.page-masthead-subtitle{font-size:.92rem}.page-masthead-side{padding:.78rem .82rem}.hero-action-grid{width:min(560px,calc(100% - 1.2rem));grid-template-columns:1fr;top:58%}.hero-copy-card{top:17.8%;width:min(640px,calc(100% - 1.2rem));padding:.95rem .9rem}.hero-copy-actions{flex-wrap:wrap;justify-content:center}.hero-stage{min-height:420px}.hero-fallback-title{letter-spacing:.14em}}@media(max-width:700px){:root{--page-gutter: clamp(14px, 4.8vw, 20px)}.container{width:min(100%,calc(100% - (var(--page-gutter) * 2)))}.header-inner{min-height:56px;gap:.34rem;padding-top:.34rem;padding-bottom:.4rem}.brand-word{font-size:1rem}.header-left{row-gap:.26rem}.header-search{display:none}.main-nav{gap:.1rem;padding-left:.1rem;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;max-width:100%}.main-nav::-webkit-scrollbar{display:none}.main-nav a{padding:.25rem .375rem;font-size:.8125rem;border-radius:calc(var(--radius) - 4px)}.header-link{display:none}.lang-toggle{height:34px;font-size:.75rem;padding:0 .5rem}.header-cta{height:34px;padding:0 .66rem;font-size:.78rem}.hero-fallback-title{font-size:1rem;letter-spacing:.11em}.hero-stage{min-height:340px}.page-main-home{padding-top:.36rem}.hero-copy-card{top:15.6%;width:min(560px,calc(100% - 1rem));padding:.75rem .7rem}.hero-copy-card h1{font-size:clamp(1.24rem,7.5vw,1.72rem)}.hero-copy-card p{font-size:.84rem;margin-top:.35rem}.hero-copy-actions{margin-top:.48rem;gap:.42rem}.hero-copy-actions .header-cta,.hero-copy-actions .home-intro-link{font-size:.82rem}.hero-action-grid{display:none}.home-intro{text-align:left}.home-intro-actions{display:flex}.home-intro-actions .header-cta{flex:1;justify-content:center}.post-card{padding:1rem;border-radius:var(--radius);min-width:0;width:100%}.post-card h2{margin-top:.5rem;font-size:clamp(1.05rem,4.5vw,1.35rem);word-break:break-word;overflow-wrap:break-word}.post-card p{font-size:.8125rem;word-break:break-word;overflow-wrap:break-word}.post-card-topline{font-size:.72rem;gap:.5rem;flex-wrap:wrap}.post-grid{grid-template-columns:1fr;gap:.72rem}.post-grid-wide{grid-template-columns:1fr}.tag-list,.tag-cloud{gap:.36rem}.tag-list a,.tag-cloud a{padding:.125rem .375rem;font-size:.6875rem}.page-masthead{margin-top:.15rem;margin-bottom:.82rem;gap:.62rem}.page-masthead-kicker{font-size:.7rem}.page-masthead-main h1{margin-top:.1rem;font-size:clamp(1.46rem,9vw,2rem);letter-spacing:-.02em}.article-meta{font-size:.84rem;line-height:1.45}.article-header h1{font-size:clamp(1.3rem,6vw,1.75rem);line-height:1.25;letter-spacing:-.01em;margin-top:.48rem;margin-bottom:.58rem;max-width:100%;word-break:break-word;overflow-wrap:break-word}.article-description{font-size:.9375rem;line-height:1.7;color:var(--muted-foreground)}.page-masthead-subtitle{font-size:.88rem;line-height:1.52}.page-masthead-side{border-radius:var(--radius);padding:.75rem}.page-masthead-side h2{font-size:.96rem}.page-masthead-side p{font-size:.8125rem}.page-masthead-metrics{gap:.38rem}.page-masthead-metrics span{padding:.2rem .52rem}.surface-card{padding:1rem;border-radius:var(--radius)}.surface-card h3{font-size:1rem}.surface-card p{font-size:.8125rem}.surface-meta-row{margin-top:.68rem;gap:.35rem}.surface-inline-grid{gap:.62rem;margin-bottom:.82rem}.posts-index-page .page-masthead{margin-bottom:.62rem}.posts-index-page .page-masthead-side{display:none}.posts-index-page .page-masthead-metrics{margin-top:.1rem}.posts-index-page .surface-inline-grid{position:relative;border:1px dashed var(--border);border-radius:var(--radius);background:var(--muted);padding:.75rem;margin-top:.35rem;margin-bottom:1rem}.posts-index-page .surface-inline-grid:before{content:"页面说明";display:inline-flex;margin-bottom:.42rem;border:1px solid var(--border);border-radius:calc(var(--radius) - 2px);background:var(--background);color:var(--muted-foreground);font-size:.6875rem;font-weight:500;letter-spacing:.02em;padding:.125rem .5rem}.posts-index-page[data-locale=en] .surface-inline-grid:before{content:"Page notes"}.posts-index-page .surface-inline-grid .surface-card{border:none;box-shadow:none;background:transparent;padding:.12rem .1rem;border-radius:0}.posts-index-page .surface-inline-grid .surface-card+.surface-card{border-top:1px solid var(--border);margin-top:.4rem;padding-top:.52rem}.posts-index-page .surface-inline-grid .surface-kicker{font-size:.6875rem;color:var(--muted-foreground)}.posts-index-page .surface-inline-grid .surface-card h3{font-size:.96rem;margin-top:.22rem;margin-bottom:.18rem}.posts-index-page .surface-inline-grid .surface-card p{font-size:.8125rem;color:var(--muted-foreground)}.posts-index-page .post-grid:before{content:"文章列表";display:block;margin:.15rem 0 .58rem;color:var(--foreground);font-size:.875rem;font-weight:600;letter-spacing:-.01em}.posts-index-page[data-locale=en] .post-grid:before{content:"Articles"}.section-head{margin:.88rem 0 .62rem}.section-head h2{font-size:.8125rem;letter-spacing:-.01em}.section-head a{font-size:.8125rem}.article-shell{grid-template-columns:minmax(0,1fr);gap:1rem;max-width:760px}.article-main,.post-nav,.article-inline-search,.article-search-band{grid-column:1}.article-search-band{margin-top:.08rem;margin-bottom:.02rem;padding-bottom:.72rem}.article-inline-search-input{font-size:1rem}.article-inline-search-panel{width:100%;left:0;padding:.44rem}.toc-desktop{display:none}.toc-mobile{display:block;margin-top:.9rem;border-radius:var(--radius);background:var(--card);padding:.75rem}.toc-mobile>summary{font-size:.875rem;letter-spacing:-.01em;text-transform:none;color:var(--foreground)}.prose-flow{margin-top:1.08rem}.prose-flow>*+*{margin-top:1.08rem}.prose-flow h2,.prose-flow h3{margin-top:1.94rem;margin-bottom:.56rem;line-height:1.2}.prose-flow h2{font-size:clamp(1.52rem,7vw,1.92rem)}.prose-flow h3{font-size:clamp(1.22rem,5.4vw,1.46rem)}.prose-flow p,.prose-flow li{font-size:1rem;line-height:1.75;color:var(--foreground)}.prose-flow ul,.prose-flow ol{padding-left:1.1rem}.prose-flow table{display:block;width:100%;max-width:100%;min-width:0;overflow-x:auto;white-space:nowrap;-webkit-overflow-scrolling:touch}}@media(max-width:560px){.footer-grid{grid-template-columns:repeat(3,1fr);gap:1.25rem 1rem;padding-block:1.75rem 1.25rem}.footer-brand{grid-column:1 / -1;flex-direction:row;align-items:center;gap:.75rem;padding-bottom:.5rem;border-bottom:1px solid var(--border)}.footer-tagline{font-size:.8rem;max-width:none}.footer-col h3{font-size:.75rem;margin-bottom:.5rem}.footer-col li{font-size:.75rem}.footer-bottom{padding-block:.75rem 1.25rem}.brand-word{font-size:.96rem}.header-inner{gap:.2rem}.main-nav a{padding:.25rem .375rem;font-size:.75rem}.lang-toggle{font-size:.7rem;padding:0 .4rem;min-width:32px}.header-cta{display:none}.hero-copy-card h1{letter-spacing:-.015em}.hero-copy-card p{font-size:.8rem}.hero-copy-actions .header-cta,.hero-copy-actions .home-intro-link{font-size:.78rem}}@media(prefers-reduced-motion:reduce){::view-transition-old(root),::view-transition-new(root){animation:none!important}*{animation:none!important;transition:none!important;scroll-behavior:auto!important}}