.astro-route-announcer{position:absolute;left:0;top:0;clip:rect(0 0 0 0);clip-path:inset(50%);overflow:hidden;white-space:nowrap;width:1px;height:1px}@keyframes astroFadeInOut{0%{opacity:1}to{opacity:0}}@keyframes astroFadeIn{0%{opacity:0;mix-blend-mode:plus-lighter}to{opacity:1;mix-blend-mode:plus-lighter}}@keyframes astroFadeOut{0%{opacity:1;mix-blend-mode:plus-lighter}to{opacity:0;mix-blend-mode:plus-lighter}}@keyframes astroSlideFromRight{0%{transform:translate(100%)}}@keyframes astroSlideFromLeft{0%{transform:translate(-100%)}}@keyframes astroSlideToRight{to{transform:translate(100%)}}@keyframes astroSlideToLeft{to{transform:translate(-100%)}}@media(prefers-reduced-motion){::view-transition-group(*),::view-transition-old(*),::view-transition-new(*){animation:none!important}[data-astro-transition-scope]{animation:none!important}}@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;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: #f6f2e9;--paper-2: #efe9db;--ink: #1b1a17;--ink-soft: #3a3833;--muted: #6f6a5e;--muted-2: #908a7c;--rule: #d7cfbd;--rule-strong: #1b1a17;--accent: #8a3324;--font-serif: "Songti SC", "Source Han Serif SC", "Noto Serif SC", "Times New Roman", Georgia, serif;--font-sans: "PingFang SC", "Source Han Sans SC", "Noto Sans SC", -apple-system, BlinkMacSystemFont, "Helvetica Neue", "Segoe UI", system-ui, sans-serif;--maxw: 1180px;--readw: 680px;--gap: clamp(1rem, 2.5vw, 2rem)}*{box-sizing:border-box}html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--font-serif);font-size:18px;line-height:1.65;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased}body:before{content:"";position:fixed;inset:0;pointer-events:none;background:linear-gradient(var(--paper-2),var(--paper-2));opacity:0}a{color:inherit;text-decoration:none}a:hover{text-decoration:underline;text-underline-offset:3px}img{max-width:100%;height:auto}.wrap{max-width:var(--maxw);margin:0 auto;padding:0 var(--gap)}.skip-link{position:absolute;left:-9999px;top:0;background:var(--ink);color:var(--paper);padding:.5rem .75rem;z-index:100}.skip-link:focus{left:0}.kicker,.label{font-family:var(--font-sans);font-size:.72rem;letter-spacing:.14em;text-transform:uppercase;color:var(--muted);font-weight:600}.meta{font-family:var(--font-sans);font-size:.82rem;color:var(--muted);letter-spacing:.01em}.meta b,.meta strong{color:var(--ink-soft);font-weight:600}.serif{font-family:var(--font-serif)}.sans{font-family:var(--font-sans)}h1,h2,h3,h4{font-family:var(--font-serif);font-weight:700;line-height:1.15;color:var(--ink)}hr.rule{border:0;border-top:1px solid var(--rule);margin:2rem 0}hr.rule-strong{border:0;border-top:2px solid var(--rule-strong);margin:1rem 0}.section-head{display:flex;align-items:baseline;justify-content:space-between;gap:1rem;border-bottom:2px solid var(--rule-strong);padding-bottom:.4rem;margin:2.6rem 0 1.2rem}.section-head h2{font-size:1.15rem;margin:0;letter-spacing:.02em}.section-head .more{font-family:var(--font-sans);font-size:.78rem;color:var(--muted);white-space:nowrap}.status{font-family:var(--font-sans);font-size:.7rem;letter-spacing:.12em;text-transform:uppercase;font-weight:600;padding:.12rem 0;border-bottom:2px solid var(--accent);color:var(--accent)}.site-header{border-bottom:1px solid var(--rule)}.masthead{display:flex;align-items:baseline;justify-content:space-between;gap:1rem;padding:.55rem 0;flex-wrap:wrap}.masthead .wordmark{font-family:var(--font-serif);font-weight:700;font-size:1.35rem;letter-spacing:.04em}.masthead .wordmark .tag{font-family:var(--font-sans);font-weight:500;font-size:.72rem;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);margin-left:.6rem}.nav{display:flex;gap:1.1rem;align-items:baseline;font-family:var(--font-sans);font-size:.82rem;letter-spacing:.03em;flex-wrap:wrap}.nav a{color:var(--ink-soft)}.nav a[aria-current=page]{border-bottom:2px solid var(--accent);padding-bottom:2px}.front-masthead{text-align:center;padding:1.6rem 0 .4rem}.oos-mark{display:block;width:200px;height:52px;margin:.7rem auto .4rem}.oos-mark .base{stroke:var(--rule-strong);stroke-width:1;opacity:.45}.oos-mark .curve{stroke:var(--ink-soft);stroke-width:1.4;fill:none}.oos-mark .pt{fill:var(--muted)}.oos-mark .bound{stroke:var(--muted-2);stroke-width:1;stroke-dasharray:2 4}.oos-mark .out{fill:var(--accent)}.spectrum{display:flex;height:4px}.spectrum i{flex:1 1 0}.shelf{display:flex;align-items:flex-end;gap:7px;padding:1.5rem 2px 0;border-bottom:5px solid var(--rule-strong);margin:.4rem 0 2.4rem;overflow-x:auto}.spine{flex:1 1 0;min-width:35px;max-width:54px;writing-mode:vertical-rl;display:flex;align-items:center;justify-content:space-between;background:var(--accent);color:var(--paper);padding:.6rem 0 .5rem;border-radius:2px 2px 0 0;transition:transform .15s ease}.spine:hover{text-decoration:none;transform:translateY(-4px)}.spine .t{font-family:var(--font-serif);font-weight:600;font-size:.84rem;letter-spacing:.14em;line-height:1;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-height:100%}.spine .n{font-family:var(--font-sans);font-size:.58rem;letter-spacing:.08em;opacity:.8;margin-top:.45rem}@media(prefers-reduced-motion:reduce){.spine,.spine:hover{transition:none;transform:none}}.family-head{display:flex;align-items:baseline;gap:.65rem;border-bottom:2px solid var(--rule-strong);padding-bottom:.4rem;margin:2.6rem 0 1.2rem}.family-head h2{font-size:1.15rem;margin:0;letter-spacing:.03em}.family-head .swatch{width:11px;height:11px;align-self:center}.family-head .meta{margin-left:auto;white-space:nowrap}.front-masthead .title{font-family:var(--font-serif);font-weight:800;font-size:clamp(2.6rem,9vw,5.5rem);letter-spacing:.12em;line-height:1;margin:0}.front-masthead .sub{font-family:var(--font-sans);font-size:.82rem;letter-spacing:.22em;text-transform:uppercase;color:var(--muted);margin-top:.7rem}.front-dateline{display:flex;justify-content:space-between;align-items:center;font-family:var(--font-sans);font-size:.72rem;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);border-top:1px solid var(--rule);border-bottom:1px solid var(--rule);padding:.4rem 0;margin-bottom:1.5rem;flex-wrap:wrap;gap:.5rem}.front-grid{display:grid;grid-template-columns:2fr 1fr;gap:clamp(1.5rem,4vw,3rem)}.front-grid .rail{border-left:1px solid var(--rule);padding-left:clamp(1.5rem,4vw,3rem)}.lead h2{font-size:clamp(1.9rem,4.5vw,3rem);line-height:1.08;margin:.2rem 0 .5rem}.lead .dek{font-size:1.15rem;color:var(--ink-soft);line-height:1.55;margin:0 0 .8rem}.book-lead{border-top:4px solid var(--accent);padding-top:1.1rem;margin-bottom:1rem}.book-lead .book-lead-sub{font-family:var(--font-sans);font-size:1rem;color:var(--muted);margin:.2rem 0 .5rem}.book-lead .dek{max-width:46ch}.book-lead-meta{display:flex;align-items:baseline;gap:1.2rem;flex-wrap:wrap;margin-top:.6rem}.book-lead-meta a{font-family:var(--font-sans);border-bottom:1px solid var(--accent)}.home-note{max-width:60ch;margin:2.6rem auto 0}.secondary-list{display:grid;gap:1.4rem;margin-top:1.6rem}.secondary-list .item{border-top:1px solid var(--rule);padding-top:1rem}.secondary-list .item h3{font-size:1.25rem;margin:.1rem 0 .3rem}.secondary-list .item .dek{color:var(--ink-soft);font-size:.98rem;margin:0}.rail-block{margin-bottom:2rem}.rail-list{list-style:none;margin:0;padding:0}.rail-list li{border-top:1px solid var(--rule);padding:.7rem 0}.rail-list li:first-child{border-top:0}.rail-list .t{font-family:var(--font-serif);font-size:1.02rem;line-height:1.25;display:block}.rail-list .m{font-family:var(--font-sans);font-size:.74rem;color:var(--muted);margin-top:.25rem}.editorial-note{border:1px solid var(--rule-strong);padding:1rem 1.1rem;font-size:.95rem;line-height:1.6}.editorial-note .label{display:block;margin-bottom:.4rem}.community-note{font-family:var(--font-sans);font-size:.76rem;color:var(--muted);letter-spacing:.04em;margin-top:1rem;border-top:1px dotted var(--rule-strong);padding-top:.6rem}.card-grid{display:grid;gap:1.4rem}.card-grid.cols-2{grid-template-columns:repeat(2,1fr)}.card-grid.cols-3{grid-template-columns:repeat(3,1fr)}.book-card{border-left:5px solid var(--accent);border-top:1px solid var(--rule);border-bottom:1px solid var(--rule);padding:1rem 0 1.2rem 1.05rem;display:flex;flex-direction:column;gap:.55rem}.book-card .head{display:flex;justify-content:space-between;align-items:baseline;gap:1rem}.book-card h3{font-size:1.5rem;margin:0;line-height:1.1}.book-card .subtitle{font-family:var(--font-sans);font-size:.85rem;color:var(--muted)}.book-card .thesis{font-size:1rem;color:var(--ink-soft);margin:0}.book-card .foot{display:flex;gap:1rem;flex-wrap:wrap;margin-top:.2rem}.chapter-card{border-top:1px solid var(--rule);padding:.9rem 0;display:grid;grid-template-columns:auto 1fr;gap:1rem;align-items:baseline}.chapter-card .num{font-family:var(--font-serif);font-size:1.6rem;font-weight:700;color:var(--accent);min-width:2.2rem}.chapter-card h3{font-size:1.25rem;margin:0 0 .2rem}.chapter-card .dek{color:var(--ink-soft);font-size:.95rem;margin:0 0 .35rem}.book-hero{border-left:10px solid var(--accent);border-bottom:2px solid var(--rule-strong);padding:1.2rem 0 1.6rem clamp(1rem,3vw,1.8rem)}.book-hero h1{font-size:clamp(2.2rem,6vw,3.6rem);margin:.3rem 0 .4rem;line-height:1.05}.book-hero .subtitle{font-family:var(--font-sans);font-size:1rem;color:var(--muted)}.book-hero .thesis{font-size:1.25rem;color:var(--ink-soft);max-width:var(--readw);margin:.8rem 0 0;line-height:1.5}.book-listen{display:inline-flex;align-items:baseline;gap:.42rem;margin-top:1.1rem;font-family:var(--font-sans);font-size:.82rem;letter-spacing:.03em;color:var(--ink-soft)}.book-listen .pl{color:var(--accent);font-size:.7rem;line-height:1}.book-listen .dur{color:var(--muted)}.book-listen:hover{text-decoration:none;color:var(--ink)}.book-listen:hover .lt{text-decoration:underline;text-underline-offset:3px}.book-layout{display:grid;grid-template-columns:1fr 280px;gap:clamp(1.5rem,4vw,3rem);margin-top:2rem}.book-aside{font-family:var(--font-sans)}.book-aside .block{border-top:2px solid var(--rule-strong);padding-top:.6rem;margin-bottom:1.8rem}.book-aside h2{font-family:var(--font-sans);font-size:.78rem;letter-spacing:.12em;text-transform:uppercase;margin:0 0 .6rem}.book-aside ul{list-style:none;margin:0;padding:0;font-size:.85rem}.book-aside li{padding:.3rem 0;border-top:1px dotted var(--rule)}.book-aside li:first-child{border-top:0}.questions-list{margin:0;padding-left:1.1rem}.questions-list li{margin-bottom:.5rem;line-height:1.45}.toc-list{list-style:none;margin:0;padding:0;counter-reset:toc}.toc-list li{display:grid;grid-template-columns:auto 1fr auto;gap:.8rem;align-items:baseline;padding:.55rem 0;border-top:1px solid var(--rule)}.toc-list .n{font-family:var(--font-sans);color:var(--accent);font-weight:700;font-size:.9rem;white-space:nowrap}.toc-list .t{font-size:1.1rem}.toc-list .d{font-family:var(--font-sans);font-size:.72rem;color:var(--muted);white-space:nowrap}.downloads{display:flex;gap:.8rem;flex-wrap:wrap}.btn{font-family:var(--font-sans);font-size:.8rem;letter-spacing:.04em;border:1px solid var(--rule-strong);padding:.45rem .8rem;display:inline-block}.btn:hover{background:var(--ink);color:var(--paper);text-decoration:none}.btn[aria-disabled=true]{color:var(--muted-2);border-color:var(--rule);cursor:not-allowed;pointer-events:none}.update-log{list-style:none;margin:0;padding:0;font-size:.9rem}.update-log li{display:flex;gap:.8rem;padding:.4rem 0;border-top:1px dotted var(--rule)}.update-log .when{font-family:var(--font-sans);font-size:.76rem;color:var(--muted);min-width:6.5rem}.article-head{border-bottom:2px solid var(--rule-strong);padding-bottom:1.2rem;margin-bottom:1.6rem}.article-head .booklabel{font-family:var(--font-sans);font-size:.78rem;letter-spacing:.12em;text-transform:uppercase;color:var(--accent)}.article-head h1{font-size:clamp(2rem,5.5vw,3.4rem);line-height:1.07;margin:.4rem 0 .5rem}.article-head .dek{font-size:1.2rem;color:var(--ink-soft);max-width:var(--readw);line-height:1.5;margin:0 0 .9rem}.article-head .byline{display:flex;gap:1.2rem;flex-wrap:wrap}.article-layout{display:grid;grid-template-columns:minmax(0,var(--readw)) 230px;gap:clamp(1.5rem,4vw,3rem);justify-content:center}.article-body{max-width:var(--readw);font-size:1.075rem;line-height:1.75}.article-body>*{grid-column:1}.article-body p{margin:0 0 1.15rem}.article-body h2{font-size:1.6rem;margin:2.2rem 0 .8rem}.article-body h3{font-size:1.25rem;margin:1.8rem 0 .6rem}.article-body blockquote{margin:1.4rem 0;padding:.3rem 0 .3rem 1.1rem;border-left:3px solid var(--accent);color:var(--ink-soft);font-style:italic}.article-body code{font-family:ui-monospace,SF Mono,Menlo,monospace;font-size:.9em;background:var(--paper-2);padding:.1em .35em;border:1px solid var(--rule)}.article-body pre{background:var(--paper-2);border:1px solid var(--rule);padding:1rem;overflow:auto;font-size:.85rem}.article-body pre code{background:none;border:0;padding:0}.article-body a.codelink{text-decoration:none}.article-body a.codelink code{color:var(--accent);border-color:var(--accent)}.article-body a.codelink:hover code{background:var(--accent);color:var(--paper)}.article-body figure.code{margin:1.6rem 0;border-top:3px solid var(--accent);padding-top:.45rem}.article-body figure.code figcaption{font-family:var(--font-sans);font-size:.78rem;letter-spacing:.02em;color:var(--muted);margin-bottom:.3rem}.article-body figure.code details>summary{cursor:pointer;font-family:var(--font-sans);font-size:.85rem;color:var(--accent);list-style:none;padding:.15rem 0}.article-body figure.code details>summary::-webkit-details-marker{display:none}.article-body figure.code details>summary:before{content:"▸ "}.article-body figure.code details[open]>summary:before{content:"▾ "}.article-body figure.code pre{margin:.6rem 0;border-radius:5px;font-size:.82rem;line-height:1.5}.article-body figure.code .codedl{margin:.2rem 0 .4rem}.article-body figure.code .codedl a{font-family:var(--font-sans);font-size:.8rem;text-decoration:none;border-bottom:1px solid var(--accent)}.article-body .cite,.ledger .cite{font-family:var(--font-sans);font-size:.68em;vertical-align:super;line-height:0;color:var(--accent);font-weight:700;padding:0 .12em;text-decoration:none}.article-body .cite:before{content:"["}.article-body .cite:after{content:"]"}.article-body .cite:hover{text-decoration:underline}.article-body h2~ol{font-size:.92rem}.article-body [id]{scroll-margin-top:1.5rem}.article-body .footnotes{max-width:var(--readw);margin:2.4rem auto 0;padding-top:.8rem;border-top:2px solid var(--rule-strong);font-family:var(--font-sans);font-size:.88rem;color:var(--ink-soft);line-height:1.5}.article-body .footnotes:before{content:"注释";display:block;font-family:var(--font-serif);font-weight:700;font-size:1.1rem;color:var(--ink);margin-bottom:.5rem}.article-body .footnotes ol{padding-left:1.4rem}.article-body .footnotes li{margin-bottom:.45rem}.article-body figure.scene{margin:1.8rem 0}.article-body figure.scene video{width:100%;display:block;border-radius:5px;background:#000}.article-body figure.scene figcaption{margin-top:.6rem;font-family:var(--font-sans);font-size:.85rem;color:var(--muted);line-height:1.7}.article-body table{width:100%;border-collapse:collapse;font-family:var(--font-sans);font-size:.9rem;margin:1.4rem 0}.article-body th,.article-body td{border-bottom:1px solid var(--rule);padding:.5rem .6rem;text-align:left}.article-body th{border-bottom:2px solid var(--rule-strong)}.article-aside{font-family:var(--font-sans);font-size:.8rem;color:var(--muted)}.article-aside .sticky{position:sticky;top:1.5rem}.article-aside .block{border-top:2px solid var(--rule-strong);padding-top:.5rem;margin-bottom:1.6rem}.article-aside h2{font-family:var(--font-sans);font-size:.72rem;letter-spacing:.12em;text-transform:uppercase;margin:0 0 .5rem}.article-aside ul{list-style:none;margin:0;padding:0}.article-aside li{padding:.3rem 0;border-top:1px dotted var(--rule);line-height:1.4}.article-aside li:first-child{border-top:0}.endblock{max-width:var(--readw);margin:2.4rem auto 0}.endblock h2{font-size:1.1rem;letter-spacing:.04em;border-bottom:2px solid var(--rule-strong);padding-bottom:.4rem}.ref-list{font-family:var(--font-sans);font-size:.88rem;line-height:1.5;padding-left:1.4rem}.ref-list li{margin-bottom:.55rem}.chapter-nav{display:flex;justify-content:space-between;gap:1rem;border-top:2px solid var(--rule-strong);margin-top:2.6rem;padding-top:1rem}.chapter-nav a{font-family:var(--font-sans);font-size:.85rem;max-width:45%}.chapter-nav .dir{display:block;font-size:.7rem;letter-spacing:.12em;text-transform:uppercase;color:var(--muted)}.dossier-block{border:1px solid var(--rule-strong);margin:1.6rem 0}.dossier-block>.hd{font-family:var(--font-sans);font-size:.76rem;letter-spacing:.12em;text-transform:uppercase;background:var(--ink);color:var(--paper);padding:.4rem .8rem}.dossier-block .bd{padding:.9rem 1rem}.dossier-grid{display:grid;gap:1.2rem}.code-log{font-family:ui-monospace,SF Mono,Menlo,monospace;font-size:.82rem;background:var(--paper-2);border:1px solid var(--rule);padding:.8rem 1rem}.code-log li{margin-bottom:.35rem;list-style:none}.code-log{padding-left:1rem}.ledger{white-space:pre-wrap;font-family:var(--font-sans);font-size:.9rem;line-height:1.55}.source-table{width:100%;border-collapse:collapse;font-family:var(--font-sans);font-size:.85rem}.source-table th{text-align:left;border-bottom:2px solid var(--rule-strong);padding:.5rem .6rem;letter-spacing:.04em}.source-table td{border-bottom:1px solid var(--rule);padding:.5rem .6rem;vertical-align:top}.source-table tr:hover td{background:var(--paper-2)}.source-table .id{color:var(--muted);white-space:nowrap}.type-tag{font-size:.68rem;letter-spacing:.08em;text-transform:uppercase;border:1px solid var(--rule-strong);padding:.05rem .35rem;white-space:nowrap}.filters{display:flex;gap:1.2rem;flex-wrap:wrap;font-family:var(--font-sans);margin:1.2rem 0 1.6rem;padding:1rem;border-top:2px solid var(--rule-strong);border-bottom:1px solid var(--rule)}.filters .group{display:flex;flex-direction:column;gap:.3rem}.filters label{font-size:.68rem;letter-spacing:.12em;text-transform:uppercase;color:var(--muted)}.filters select{font-family:var(--font-sans);font-size:.85rem;padding:.3rem .4rem;border:1px solid var(--rule-strong);background:var(--paper);color:var(--ink)}.def-grid{display:grid;grid-template-columns:max-content 1fr;gap:.5rem 1.2rem;font-family:var(--font-sans);font-size:.9rem;margin:1.2rem 0}.def-grid dt{color:var(--muted);font-size:.72rem;letter-spacing:.1em;text-transform:uppercase;padding-top:.15rem}.def-grid dd{margin:0}.page-head{border-bottom:3px double var(--rule-strong);padding-bottom:1rem;margin-bottom:1.6rem}.page-head h1{font-size:clamp(2rem,6vw,3.2rem);margin:0 0 .4rem}.page-head .intro{font-family:var(--font-sans);font-size:.95rem;color:var(--muted);max-width:50ch}.breadcrumb{font-family:var(--font-sans);font-size:.76rem;color:var(--muted);letter-spacing:.04em;margin:1.2rem 0 .4rem}.breadcrumb a:hover{color:var(--ink)}.site-footer{border-top:3px double var(--rule-strong);margin-top:4rem;padding:1.6rem 0 2.4rem}.footer-grid{display:flex;justify-content:space-between;align-items:baseline;gap:1.5rem;flex-wrap:wrap;font-family:var(--font-sans);font-size:.78rem;color:var(--muted)}.footer-grid .wordmark{font-family:var(--font-serif);font-size:1.1rem;color:var(--ink);letter-spacing:.04em}.footer-feeds{display:flex;align-items:baseline;gap:1.1rem;flex-wrap:wrap}.footer-feeds .label{font-size:.66rem;letter-spacing:.14em;text-transform:uppercase;color:var(--muted-2)}.footer-feeds a{color:var(--ink-soft);border-bottom:1px solid var(--rule);padding-bottom:1px}.footer-feeds a:hover{border-color:var(--accent);color:var(--ink);text-decoration:none}.footer-feeds .rss{font-size:.6rem;letter-spacing:.1em;color:var(--accent);vertical-align:1px}.tags{display:flex;gap:.4rem;flex-wrap:wrap;font-family:var(--font-sans)}.tags .tag{font-size:.68rem;letter-spacing:.06em;color:var(--muted);border:1px solid var(--rule);padding:.08rem .4rem}@media(max-width:900px){.front-grid{grid-template-columns:1fr}.front-grid .rail{border-left:0;padding-left:0;border-top:2px solid var(--rule-strong);padding-top:1.5rem}.book-layout{grid-template-columns:1fr}.book-aside{order:2}.article-layout{grid-template-columns:1fr}.article-body,.endblock{max-width:100%}.article-aside{display:none}.card-grid.cols-2,.card-grid.cols-3{grid-template-columns:1fr}}@media(max-width:560px){body{font-size:17px}.masthead{flex-direction:column;align-items:flex-start;gap:.5rem}.source-table thead{display:none}.source-table,.source-table tbody,.source-table tr,.source-table td{display:block;width:100%}.source-table tr{border-bottom:2px solid var(--rule-strong);padding:.6rem 0}.source-table td{border:0;padding:.15rem 0}.source-table td:before{content:attr(data-th) " · ";color:var(--muted);font-size:.7rem;letter-spacing:.08em;text-transform:uppercase}.chapter-nav{flex-direction:column}.chapter-nav a{max-width:100%}.def-grid{grid-template-columns:1fr;gap:.1rem .5rem}.def-grid dd{margin-bottom:.6rem}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}::view-transition-old(root),::view-transition-new(root){animation:none;mix-blend-mode:normal}.audiodock{position:fixed;left:0;right:0;bottom:0;z-index:50;background:var(--paper);border-top:2px solid var(--rule-strong)}.audiodock[hidden]{display:none}.audiodock-inner{display:flex;align-items:center;gap:1rem;padding:.5rem var(--gap)}.ad-toggle{flex:none;width:34px;height:34px;padding:0;border:1px solid var(--rule-strong);background:var(--paper);color:var(--accent);font-size:.85rem;line-height:1;cursor:pointer;display:flex;align-items:center;justify-content:center}.ad-toggle:hover{background:var(--accent);color:var(--paper);border-color:var(--accent)}.ad-main{flex:1 1 auto;min-width:0;display:flex;flex-direction:column;gap:.35rem}.ad-title{font-family:var(--font-serif);font-size:.92rem;color:var(--ink);line-height:1.2;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.ad-title:before{content:"有声版 · ";font-family:var(--font-sans);font-size:.64rem;letter-spacing:.12em;text-transform:uppercase;color:var(--muted-2)}.ad-track{height:3px;background:var(--rule);cursor:pointer;position:relative}.ad-fill{height:100%;width:0;background:var(--accent)}.ad-time{flex:none;font-family:var(--font-sans);font-size:.72rem;color:var(--muted);font-variant-numeric:tabular-nums;letter-spacing:.02em}.ad-dl{flex:none;font-family:var(--font-sans);font-size:.72rem;color:var(--muted);letter-spacing:.04em;border-bottom:1px solid var(--rule);padding-bottom:1px}.ad-dl:hover{color:var(--ink);border-color:var(--accent);text-decoration:none}.ad-close{flex:none;background:none;border:0;cursor:pointer;color:var(--muted);font-size:1.2rem;line-height:1;padding:0 .1rem}.ad-close:hover{color:var(--ink)}body.dock-open{padding-bottom:60px}@media(max-width:560px){.ad-time{display:none}.audiodock-inner{gap:.7rem}}