.astro-route-announcer{clip:rect(0 0 0 0);clip-path:inset(50%);white-space:nowrap;width:1px;height:1px;position:absolute;top:0;left:0;overflow:hidden}@font-face{font-family:"Source Serif 4";font-style:normal;font-weight:200 900;font-display:swap;src:url(/_astro/source-serif-4-latin-ext-wght-normal.BVZ5su8S.woff2)format("woff2-variations");unicode-range:U+100-2BA,U+2BD-2C5,U+2C7-2CC,U+2CE-2D7,U+2DD-2FF,U+304,U+308,U+329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C4,U+2113,U+2C60-2C7F,U+A720-A7FF}@font-face{font-family:"Source Serif 4";font-style:italic;font-weight:200 900;font-display:swap;src:url(/_astro/source-serif-4-latin-ext-wght-italic.B_cmBfNX.woff2)format("woff2-variations");unicode-range:U+100-2BA,U+2BD-2C5,U+2C7-2CC,U+2CE-2D7,U+2DD-2FF,U+304,U+308,U+329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C4,U+2113,U+2C60-2C7F,U+A720-A7FF}@font-face{font-family:"Source Serif 4";font-style:normal;font-weight:200 900;font-display:swap;src:url(/_astro/source-serif-4-latin-wght-normal.DMe4EKeb.woff2)format("woff2-variations");unicode-range:U+??,U+131,U+152-153,U+2BB-2BC,U+2C6,U+2DA,U+2DC,U+304,U+308,U+329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}@font-face{font-family:"Source Serif 4";font-style:italic;font-weight:200 900;font-display:swap;src:url(/_astro/source-serif-4-latin-wght-italic.B-rCj6ir.woff2)format("woff2-variations");unicode-range:U+??,U+131,U+152-153,U+2BB-2BC,U+2C6,U+2DA,U+2DC,U+304,U+308,U+329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}@font-face{font-family:"Source Sans 3";font-style:normal;font-weight:200 900;font-display:swap;src:url(/_astro/source-sans-3-latin-wght-normal.Bo_j9asI.woff2)format("woff2-variations");unicode-range:U+??,U+131,U+152-153,U+2BB-2BC,U+2C6,U+2DA,U+2DC,U+304,U+308,U+329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}@font-face{font-family:Noto Serif SC;font-style:normal;font-weight:400;font-display:swap;src:url(/_astro/noto-serif-sc-400.BbZxqeaA.woff2)format("woff2")}@font-face{font-family:Noto Serif SC;font-style:normal;font-weight:600;font-display:swap;src:url(/_astro/noto-serif-sc-600.BZhN-OXR.woff2)format("woff2")}@font-face{font-family:Amiri;font-style:normal;font-weight:400;font-display:swap;src:url(/_astro/amiri-arabic-400-normal.D0NIBXga.woff2)format("woff2");unicode-range:U+6??,U+750-77F,U+870-89F,U+8A0-8FF,U+FB50-FDFF,U+FE70-FEFE,U+200C-200F}@font-face{font-family:Amiri;font-style:normal;font-weight:700;font-display:swap;src:url(/_astro/amiri-arabic-700-normal.D8FrblyB.woff2)format("woff2");unicode-range:U+6??,U+750-77F,U+870-89F,U+8A0-8FF,U+FB50-FDFF,U+FE70-FEFE,U+200C-200F}:root{color-scheme:light;--paper:#fbfcfe;--ink:#1d2b50;--body:#243656;--ink-soft:#3e5274;--rule:#1d2b5024;--accent:#2177c4;--sky:#97d4fe;--navy:#1d2b50;--code:#eef3fa;--date-col:12.5rem;--serif:"Source Serif 4", "Iowan Old Style", Palatino, "Palatino Linotype", "Songti SC", "Noto Serif CJK SC", "Source Han Serif SC", PMingLiU, Georgia, serif;--sans:"Source Sans 3", "Source Serif 4", sans-serif;--measure:66ch;--measure-cjk:36em;--leading:1.68;--pad:1.35rem}@media (prefers-color-scheme:dark){:root{color-scheme:dark;--paper:#121c30;--ink:#f7f9fc;--body:#e7eef6;--ink-soft:#b7c6da;--rule:#b7c6da3d;--accent:#97d4fe;--code:#1a2740}}*,:before,:after{box-sizing:border-box}html{background:var(--paper);scroll-behavior:smooth;hanging-punctuation:first last;quotes:"“" "”" "‘" "’"}html[lang=zh-CN]{quotes:"「" "」" "『" "』";text-spacing-trim:trim-start;text-autospace:normal;--date-col:8.75rem}html[lang=ar]{quotes:"«" "»" "‹" "›";--date-col:12rem}body{background:var(--paper);min-height:100vh;font-family:var(--serif);font-size:1.0625rem;font-weight:430;line-height:var(--leading);color:var(--body);font-synthesis:none;text-rendering:optimizelegibility;font-variant-numeric:oldstyle-nums proportional-nums;font-feature-settings:"onum" 1, "pnum" 1, "kern" 1, "liga" 1;-webkit-font-smoothing:antialiased;flex-direction:column;margin:0;display:flex}html[lang=zh-CN] body{font-family:"Noto Serif SC", var(--serif);font-weight:400;line-height:1.8}html[lang=ar] body{font-family:Amiri, var(--serif);font-weight:400;line-height:1.95}main{flex:1}img{max-width:100%;height:auto}::selection{background:var(--sky);color:var(--navy)}:focus-visible{outline:1px solid var(--accent);outline-offset:3px}a{color:var(--accent);text-underline-offset:.22em;text-decoration-line:underline;text-decoration-thickness:.06em;text-decoration-color:color-mix(in srgb, var(--accent) 45%, transparent);transition:text-decoration-color .18s,text-decoration-thickness .18s,color .18s}a:hover{text-decoration-thickness:.12em;text-decoration-color:var(--sky)}h1,h2,h3,.wordmark,.item-title,.toc-title,.section-label{color:var(--ink)}h1,h2,h3{letter-spacing:-.02em;hanging-punctuation:first last;font-weight:520;line-height:1.16}html[lang=zh-CN] :is(h1,h2,h3,strong,b){letter-spacing:0;font-weight:600;line-height:1.35}html[lang=ar] :is(h1,h2,h3,strong,b){letter-spacing:0;font-weight:700;line-height:1.45}p{hanging-punctuation:first last}.skip{inset-inline-start:var(--pad);background:var(--paper);color:var(--ink);z-index:30;padding:.3rem .6rem;position:absolute;top:.6rem;transform:translateY(-160%)}.skip:focus{transform:none}.shell,.bar{width:min(72rem, calc(100% - var(--pad) * 2));margin-inline:auto}.shell{padding-block:2.5rem 4.5rem}.site-header{z-index:20;background:var(--paper);border-bottom:1px solid var(--rule);position:sticky;top:0}.bar{flex-wrap:wrap;align-items:baseline;gap:.65rem 1.4rem;padding-block:.85rem .75rem;display:flex}.wordmark{color:var(--ink);letter-spacing:-.02em;align-items:center;gap:.45rem;font-size:1.2rem;font-weight:560;text-decoration:none;display:inline-flex}html[lang=zh-CN] .wordmark{letter-spacing:0;font-weight:600}html[lang=ar] .wordmark{letter-spacing:0;font-weight:700}.wordmark:hover{color:var(--accent);text-decoration:none}.mark-slot,.footer-mark,.signature{line-height:0;display:inline-flex}.mascot{width:1.35rem;height:1.35rem;display:block}.footer-mark .mascot{width:1.05rem;height:1.05rem}.signature .mascot{width:1.55rem;height:1.55rem}.nav-sections,.nav-lang ul,.footer-links{flex-wrap:wrap;gap:.35rem 1.05rem;margin:0;padding:0;list-style:none;display:flex}.nav-sections a,.nav-lang a{color:var(--ink-soft);font-family:var(--serif);font-variant-numeric:lining-nums;letter-spacing:.14em;font-size:.78rem;font-variant-caps:all-small-caps;font-weight:500;text-decoration:none;box-shadow:inset 0 -1px #0000}html[lang=zh-CN] :is(.nav-sections a,.kicker,.kind,.badge){font-family:"Noto Serif SC", var(--serif);letter-spacing:0;text-transform:none;font-size:.92rem;font-variant-caps:normal;font-weight:600}html[lang=ar] :is(.nav-sections a,.kicker,.kind,.badge){letter-spacing:0;text-transform:none;font-family:Amiri,serif;font-size:1.02rem;font-variant-caps:normal;font-weight:700}.nav-sections a:hover,.nav-lang a:hover{color:var(--ink);text-decoration:none}.nav-sections a[aria-current=page],.nav-lang a[aria-current=page]{color:var(--ink);box-shadow:inset 0 -1px 0 var(--ink)}.nav-lang{margin-inline-start:auto}.nav-lang a{letter-spacing:.04em;text-transform:none;font-family:"Source Sans 3","Source Serif 4",Noto Serif SC,Amiri,sans-serif;font-size:.78rem;font-variant-caps:normal}.site-footer{border-top:1px solid var(--rule);color:var(--ink-soft);margin-top:auto;font-size:.95rem}.footer-bar{align-items:start;padding-block:1.4rem 2rem}.footer-mark{margin-top:.35rem}.footer-links{margin-top:.45rem}.footer-links a{color:var(--ink-soft)}.opening,.toc,.register-block,.page,.stack,.plates{width:min(100%, var(--measure));margin-inline:auto}html[lang=zh-CN] :is(.opening,.toc,.register-block,.page,.stack,.plates,.prose,.ornament){width:min(100%, var(--measure-cjk))}.opening{padding-top:2rem}.opening h1{letter-spacing:-.032em;margin:0 0 1.25rem;font-size:clamp(2.9rem,7.6vw,5.35rem);font-weight:500;line-height:.98}html[lang=zh-CN] .opening h1{letter-spacing:0;font-size:clamp(2.55rem,6.2vw,4.25rem);line-height:1.2}html[lang=ar] .opening h1{letter-spacing:0;font-size:clamp(2.6rem,6.6vw,4.45rem);line-height:1.28}.kicker{color:var(--accent);font-family:var(--serif);letter-spacing:.16em;margin:0 0 .35rem;font-size:.78rem;font-variant-caps:all-small-caps;font-weight:500}.deck,.intro,.bio{color:var(--ink-soft);margin:0 0 1rem;font-size:1.15rem;line-height:1.55}html[lang=zh-CN] :is(.deck,.intro,.bio){font-size:1.08rem;line-height:1.85}html[lang=ar] :is(.deck,.intro,.bio){font-size:1.2rem;line-height:1.95}.where{flex-wrap:wrap;gap:.35rem .75rem;margin:1.5rem 0 0;display:flex}.where .dot{color:var(--rule)}.ornament{width:min(100%, var(--measure));text-align:center;border:0;margin:2.5rem auto;line-height:1}.ornament:before{content:"";background:var(--sky);width:.42rem;height:.42rem;display:inline-block;transform:rotate(45deg)}.toc ol,.register,.stack,.plates{margin-block:0;padding:0;list-style:none}.section-label{margin:0 0 .75rem;font-size:1.35rem;font-weight:520}.toc a{color:inherit;border-top:1px solid var(--rule);grid-template-columns:2.1rem minmax(0,1fr);gap:.75rem;padding-block:1rem;text-decoration:none;display:grid}.toc a:hover{color:inherit;text-decoration:none}.toc a:hover .toc-title{color:var(--accent)}.toc-num{color:var(--accent);font-variant-numeric:oldstyle-nums;padding-top:.28rem}.toc-title{font-size:1.45rem;line-height:1.25;transition:color .18s;display:block}.toc-intro{color:var(--ink-soft);margin-top:.15rem;display:block}.register li,.stack>li{border-top:1px solid var(--rule);padding-block:1rem}.register li{grid-template-columns:minmax(0,1fr) auto;align-items:baseline;gap:.35rem 1rem;display:grid}.register time{color:var(--ink-soft);font-variant-numeric:oldstyle-nums tabular-nums;font-feature-settings:"onum" 1, "tnum" 1;grid-area:1/1}.stack time{color:var(--ink-soft);font-variant-numeric:oldstyle-nums tabular-nums;font-feature-settings:"onum" 1, "tnum" 1}.register .item-title{grid-area:2/1/auto/-1}.register .kind{grid-area:1/2;justify-self:end}.register p{grid-area:3/1/auto/-1}.item-title{color:var(--ink);font-size:1.2rem;line-height:1.35;text-decoration-color:#0000}.item-title:hover{color:var(--accent);text-decoration-color:var(--sky)}.register p,.stack>li>p{color:var(--ink-soft);margin:.2rem 0 0}.kind{color:var(--ink-soft);font-family:var(--serif);letter-spacing:.14em;font-size:.75rem;font-variant-caps:all-small-caps;text-decoration:none}.kind:hover{color:var(--accent);text-decoration:none}.page h1,.leaf h1{margin:.15rem 0 .85rem;font-size:clamp(2.05rem,4.4vw,3.2rem);font-weight:500}.prose{width:min(100%, var(--measure));font-size:1.075rem;line-height:1.72}html[lang=zh-CN] .prose{line-height:1.85}html[lang=ar] .prose{line-height:1.98}.prose :is(p,ul,ol,blockquote,figure){margin:0 0 1.05em}.prose a{color:var(--accent)}.prose :is(code,pre){background:var(--code);color:var(--ink)}.prose blockquote{border-inline-start:1px solid var(--rule);color:var(--ink-soft);margin-inline:0;padding-inline-start:1.15em;font-style:italic}html[lang=zh-CN] .prose blockquote,html[lang=ar] .prose blockquote{font-style:normal}html[lang=en] .essay .prose>p:first-of-type:first-letter{float:left;padding-inline-end:.08em;color:var(--ink);padding-top:.06em;font-size:3.35em;font-weight:500;line-height:.8}.essay .prose{position:relative}html:not([lang=en]) .essay .prose:before{content:"";background:var(--sky);width:.42rem;height:.42rem;margin:.5rem auto 1.25rem;display:block;transform:rotate(45deg)}.marginalia{color:var(--ink-soft);font-family:var(--serif);letter-spacing:.14em;flex-wrap:wrap;gap:.3rem .75rem;margin:0 0 1.1rem;font-size:.75rem;font-variant-caps:all-small-caps;display:flex}.marginalia p,.marginalia time{margin:0}.leaf{width:min(100%, var(--measure));margin-inline:auto}.plates a{color:inherit;border-top:1px solid var(--rule);padding-block:1.15rem;text-decoration:none;display:block}.plates a:hover{text-decoration:none}.plates img{width:100%;display:block}.plates h2{margin:.7rem 0 .15rem;font-size:1.45rem}.plates p,.plates time{color:var(--ink-soft);margin:0}.plate{width:min(100%, var(--measure));margin:1.6rem auto}html[lang=zh-CN] .plate{width:min(100%, var(--measure-cjk))}.plate img{width:100%;display:block}.plate figcaption{color:var(--ink-soft);text-align:center;margin-top:.45rem;font-size:.95rem}.repo,.record,.principles,.contact{margin-top:2.4rem}.repo h2,.principles h2{margin:0 0 .8rem;font-size:1.45rem}.repo dl{grid-template-columns:minmax(6.5rem,9rem) minmax(0,1fr);gap:.4rem 1rem;margin:0;display:grid}.repo dt{color:var(--ink-soft);font-family:var(--serif);letter-spacing:.12em;font-size:.75rem;font-variant-caps:all-small-caps}html[lang=zh-CN] .repo dt,html[lang=ar] .repo dt{letter-spacing:0;font-size:.95rem;font-variant-caps:normal}.repo dd{margin:0}.record{border-top:1px solid var(--rule);color:var(--ink-soft);padding-top:.9rem}.record>p{margin:0}.later{border-inline-start:1px solid var(--accent);margin-top:1rem;padding-inline-start:.95rem}.later p{margin:.15rem 0 0}.later-mark{color:var(--accent);letter-spacing:.08em;margin:0;font-size:.92rem;font-variant-caps:all-small-caps}html[lang=zh-CN] .later-mark,html[lang=ar] .later-mark{letter-spacing:0;font-variant-caps:normal}.principles ol{counter-reset:principle;margin:0;padding:0;list-style:none}.principles li{counter-increment:principle;border-top:1px solid var(--rule);padding:.85rem 0 .85rem 2.6rem;position:relative}html[dir=rtl] .principles li{padding:.85rem 2.6rem .85rem 0}.principles li:before{content:counter(principle, decimal-leading-zero);inset-inline-start:0;color:var(--accent);font-variant-numeric:oldstyle-nums;position:absolute;top:.9rem}.also,.plain,.empty{color:var(--ink-soft)}.badge{color:var(--ink-soft);font-family:var(--serif);letter-spacing:.14em;vertical-align:.35em;margin-inline-start:.55rem;font-size:.68rem;font-variant-caps:all-small-caps;font-weight:500}.missing{width:min(100%, var(--measure));padding-block:2rem 3rem}.missing h1{font-size:clamp(2.4rem,8vw,4.2rem);line-height:1.08}.return{margin-top:1.4rem}.signature{margin-top:2.5rem}html[data-missing=en] [data-panel]:not([data-panel=en]),html[data-missing=zh] [data-panel]:not([data-panel=zh]),html[data-missing=ar] [data-panel]:not([data-panel=ar]){display:none}.lightbox{background:0 0;border:0;max-block-size:100vh;max-inline-size:100vw;margin:auto;padding:0}.lightbox::backdrop{background:#0e1626e0}.lightbox img{width:auto;max-width:min(92vw,1100px);height:auto;max-height:82vh;margin-inline:auto;display:block}.lightbox p{color:var(--paper);text-align:center;max-width:40rem;margin:.7rem auto 0}.lightbox button{color:var(--paper);border:0;border-bottom:1px solid color-mix(in srgb, var(--paper) 55%, transparent);font:inherit;cursor:pointer;background:0 0;padding:.2rem 0;position:absolute;inset-block-start:.6rem;inset-inline-end:.6rem}.vh{clip-path:inset(50%);white-space:nowrap;border:0;block-size:1px;inline-size:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}@media (width>=720px){:root{--pad:2.25rem}.register li{grid-template-columns:var(--date-col) minmax(0, 1fr) auto;column-gap:1.5rem}.register time{white-space:nowrap}.register .item-title{grid-area:1/2}.register .kind{grid-area:1/3;justify-self:end}.register p{grid-area:2/2}}@media (width>=1100px){.shell{padding-block:3.5rem 5rem}.opening{padding-top:2.75rem}.leaf{grid-template-columns:8.75rem minmax(0, var(--measure));justify-content:center;align-items:start;column-gap:2.75rem;width:min(100%,58rem);display:grid}html[lang=zh-CN] .leaf{grid-template-columns:8.75rem minmax(0, var(--measure-cjk))}.marginalia{text-align:end;margin:.4rem 0 0;display:block;position:sticky;top:5.5rem}html[dir=rtl] .marginalia{text-align:start}.marginalia p,.marginalia time{margin:0 0 .45rem;display:block}html[lang=zh-CN] .marginalia,html[lang=ar] .marginalia{letter-spacing:0;font-size:.95rem;font-variant-caps:normal}}@media (prefers-reduced-motion:no-preference){.opening>*{animation:.9s cubic-bezier(.16,1,.3,1) both rise}.opening>:nth-child(2){animation-delay:70ms}.opening>:nth-child(3){animation-delay:.14s}.opening>:nth-child(4){animation-delay:.21s}}@keyframes rise{0%{opacity:0;transform:translateY(.4rem)}to{opacity:1;transform:none}}@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}a,.toc-title{transition:none}}@media print{.site-header,.site-footer,.lightbox,.skip,.marginalia{display:none}body{color:#000;background:#fff}}