:root{--washi: #f4f1ea;--panel: #ece7db;--ink: #1c1a17;--ink-soft: #5a554c;--hairline: #c9c2b2;--vermilion: #c8412b;--vermilion-deep: #a8331f;--ink-12: rgba(28, 26, 23, .12);--ink-06: rgba(28, 26, 23, .06);--washi-80: rgba(244, 241, 234, .82);--serif: "Shippori Mincho", "Noto Serif JP", Georgia, "Times New Roman", serif;--mono: "JetBrains Mono", ui-monospace, "SF Mono", Menlo, monospace;--measure: 64ch;--ma: clamp(6rem, 12vh, 11rem);--gutter: clamp(1.4rem, 5vw, 3rem);--maxw: 1180px;--ease: cubic-bezier(.2, .7, .2, 1)}*,*:before,*:after{box-sizing:border-box}html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}body{margin:0;min-height:100svh;background:var(--washi);color:var(--ink);font-family:var(--serif);font-weight:400;font-size:1.0625rem;line-height:1.8;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;font-feature-settings:"kern","liga","onum";overflow-x:hidden}.paper-grain{position:fixed;inset:0;z-index:0;pointer-events:none;opacity:.04;mix-blend-mode:multiply}::selection{background:var(--vermilion);color:var(--washi)}a{color:inherit;text-decoration:none}.wrap{width:100%;max-width:var(--maxw);margin-inline:auto;padding-inline:var(--gutter)}.measure{max-width:var(--measure)}.site-main{position:relative;z-index:1}.hairline{border:0;height:1px;background:var(--hairline);margin:0}.section-pad{padding-block:var(--ma)}h1,h2,h3,h4{font-weight:500;line-height:1.12;letter-spacing:-.01em;margin:0;text-wrap:balance}.display{font-size:clamp(2.6rem,6vw,5rem);font-weight:600;line-height:1.05;letter-spacing:-.02em}.eyebrow{font-family:var(--serif);font-size:.72rem;font-weight:600;letter-spacing:.3em;text-transform:uppercase;color:var(--ink-soft);margin:0}.dek{font-size:clamp(1.15rem,2.2vw,1.4rem);line-height:1.6;color:var(--ink-soft);font-style:italic;max-width:52ch}.vertical-rl{writing-mode:vertical-rl;text-orientation:mixed;letter-spacing:.28em;text-transform:uppercase;font-size:.7rem;color:var(--ink-soft);white-space:nowrap}.btn{display:inline-block;font-family:var(--serif);font-size:.82rem;font-weight:600;letter-spacing:.14em;text-transform:uppercase;padding:.7em 1.4em;border-radius:2px;background:var(--vermilion);color:var(--washi);border:1px solid var(--vermilion);cursor:pointer;transition:background .25s var(--ease),border-color .25s var(--ease)}.btn:hover{background:var(--vermilion-deep);border-color:var(--vermilion-deep)}.btn-outline{display:inline-block;font-family:var(--serif);font-size:.82rem;font-weight:600;letter-spacing:.14em;text-transform:uppercase;padding:.7em 1.4em;border-radius:2px;background:transparent;color:var(--vermilion);border:1px solid var(--vermilion);cursor:pointer;transition:background .25s var(--ease),color .25s var(--ease)}.btn-outline:hover{background:var(--vermilion);color:var(--washi)}.btn-ghost{display:inline-block;font-family:var(--serif);color:var(--ink);cursor:pointer;background:none;border:0;padding:0;position:relative;font-size:inherit}.btn-ghost:after{content:"";position:absolute;left:0;bottom:-2px;width:1.4em;height:1px;background:currentColor;transition:width .3s var(--ease)}.btn-ghost:hover:after{width:100%}.seal{display:inline-flex;align-items:center;justify-content:center;width:2.4em;height:2.4em;border:1.5px solid var(--vermilion);border-radius:3px;color:var(--vermilion);font-size:.9rem;line-height:1;user-select:none}.index-num{font-family:var(--mono);font-size:.74rem;letter-spacing:.1em;color:var(--vermilion)}.reveal{opacity:0;transform:translateY(12px);transition:opacity .7s var(--ease),transform .7s var(--ease);transition-delay:var(--d, 0s)}.reveal.is-in{opacity:1;transform:none}.card{display:block;border-top:1px solid var(--hairline);padding-top:1.1rem;transition:border-color .3s var(--ease)}.card:hover{border-color:var(--ink)}.card:hover .card-title{color:var(--ink)}.card-head{display:flex;align-items:baseline;gap:.8rem;margin-bottom:.5rem}.card-title{font-size:1.32rem;font-weight:500;color:var(--ink);letter-spacing:-.01em;transition:color .3s var(--ease)}.card-summary{color:var(--ink-soft);font-size:.98rem;line-height:1.6;max-width:46ch}.card-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:clamp(1.6rem,4vw,3rem) clamp(2rem,5vw,4rem)}.prose{font-size:1.0625rem;line-height:1.8;color:var(--ink)}.prose>*+*{margin-top:1.3em}.prose p{max-width:var(--measure)}.prose h2{font-size:clamp(1.6rem,3vw,2.1rem);font-weight:600;margin-top:2.6em;margin-bottom:.2em;letter-spacing:-.015em;scroll-margin-top:6rem}.prose h2:before{content:"";display:block;width:2.2rem;height:2px;background:var(--vermilion);margin-bottom:.9rem;border-radius:2px}.prose h3{font-size:clamp(1.25rem,2.2vw,1.5rem);font-weight:600;margin-top:1.9em;margin-bottom:.1em;color:var(--ink);scroll-margin-top:6rem}.prose h4{font-size:1.05rem;font-weight:600;letter-spacing:.02em;margin-top:1.6em;color:var(--ink-soft);scroll-margin-top:6rem}.prose a{color:var(--ink);border-bottom:1px solid var(--vermilion);transition:color .2s var(--ease),background .2s var(--ease)}.prose a:hover{color:var(--vermilion-deep)}.prose strong{font-weight:700}.prose em{font-style:italic}.prose ul,.prose ol{max-width:var(--measure);padding-left:1.4em}.prose li+li{margin-top:.5em}.prose li::marker{color:var(--vermilion)}.prose blockquote{max-width:var(--measure);margin-inline:0;padding-left:1.4rem;border-left:2px solid var(--vermilion);font-style:italic;color:var(--ink-soft)}.prose hr{border:0;height:1px;background:var(--hairline);margin-block:2.4em;max-width:var(--measure)}.prose code{font-family:var(--mono);font-size:.88em;background:var(--panel);padding:.1em .4em;border-radius:2px}.prose pre{background:var(--ink);color:var(--washi);padding:1.2rem 1.4rem;border-radius:3px;overflow-x:auto;font-size:.9rem;max-width:var(--measure)}.prose pre code{background:none;padding:0;color:inherit}.prose table{width:100%;max-width:var(--measure);border-collapse:collapse;font-size:.95rem;margin-block:1.6em}.prose th,.prose td{text-align:left;padding:.6em .9em;border-bottom:1px solid var(--hairline);vertical-align:top}.prose thead th{font-size:.72rem;letter-spacing:.14em;text-transform:uppercase;color:var(--ink-soft);border-bottom-color:var(--ink)}.prose img{max-width:100%;height:auto}.ipa{font-family:var(--mono);font-style:normal;letter-spacing:.02em}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.reveal{opacity:1;transform:none;transition:none}*{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important}}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.lang-toggle[data-astro-cid-lb7h3eps]{font-family:var(--mono);font-size:.72rem;letter-spacing:.12em;display:inline-flex;gap:.35em;color:var(--ink-soft)}.lang-toggle[data-astro-cid-lb7h3eps] .on[data-astro-cid-lb7h3eps]{color:var(--vermilion)}.lang-toggle[data-astro-cid-lb7h3eps] .off[data-astro-cid-lb7h3eps]{color:var(--ink-soft);opacity:.6}.lang-toggle[data-astro-cid-lb7h3eps] .sep[data-astro-cid-lb7h3eps]{opacity:.4}.lang-toggle[data-astro-cid-lb7h3eps]:hover .off[data-astro-cid-lb7h3eps]{opacity:1}.nav[data-astro-cid-dmqpwcec]{position:sticky;top:0;z-index:50;background:var(--washi-80);backdrop-filter:saturate(120%) blur(8px)}.nav-inner[data-astro-cid-dmqpwcec]{display:flex;align-items:center;justify-content:space-between;gap:1.5rem;min-height:4rem;padding-block:.6rem}.wordmark[data-astro-cid-dmqpwcec]{font-size:1.05rem;font-weight:600;letter-spacing:-.01em;color:var(--ink)}.wordmark[data-astro-cid-dmqpwcec] .dot[data-astro-cid-dmqpwcec]{color:var(--vermilion)}.nav-right[data-astro-cid-dmqpwcec]{display:flex;align-items:center;gap:clamp(.8rem,2vw,1.6rem)}.nav-link[data-astro-cid-dmqpwcec]{font-size:.78rem;letter-spacing:.1em;text-transform:uppercase;color:var(--ink-soft);transition:color .2s var(--ease)}.nav-link[data-astro-cid-dmqpwcec]:hover{color:var(--ink)}.nav-tools[data-astro-cid-dmqpwcec]{display:none;gap:1.3rem}.search-cta[data-astro-cid-dmqpwcec]{font-size:.72rem;padding:.5em 1.1em}.index-menu[data-astro-cid-dmqpwcec]{position:relative}.index-menu[data-astro-cid-dmqpwcec] summary[data-astro-cid-dmqpwcec]{list-style:none;cursor:pointer;font-size:.78rem;letter-spacing:.1em;text-transform:uppercase;color:var(--ink-soft)}.index-menu[data-astro-cid-dmqpwcec] summary[data-astro-cid-dmqpwcec]::-webkit-details-marker{display:none}.index-menu[data-astro-cid-dmqpwcec] summary[data-astro-cid-dmqpwcec]:hover{color:var(--ink)}.index-menu[data-astro-cid-dmqpwcec][open] summary[data-astro-cid-dmqpwcec]{color:var(--vermilion)}.index-panel[data-astro-cid-dmqpwcec]{position:absolute;right:0;top:calc(100% + .9rem);width:min(92vw,30rem);background:var(--washi);border:1px solid var(--hairline);border-radius:3px;padding:1.2rem 1.4rem}.index-list[data-astro-cid-dmqpwcec]{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:1fr 1fr;gap:.2rem 1.4rem}.index-list[data-astro-cid-dmqpwcec] a[data-astro-cid-dmqpwcec]{display:flex;align-items:baseline;gap:.6rem;padding:.4rem 0;color:var(--ink);transition:color .2s var(--ease)}.index-list[data-astro-cid-dmqpwcec] a[data-astro-cid-dmqpwcec]:hover{color:var(--vermilion)}.ix-seal[data-astro-cid-dmqpwcec]{color:var(--vermilion);font-size:.85rem;width:1.2em;flex:none}.ix-title[data-astro-cid-dmqpwcec]{font-size:.98rem}@media(min-width:880px){.nav-tools[data-astro-cid-dmqpwcec]{display:inline-flex}}@media(max-width:540px){.index-list[data-astro-cid-dmqpwcec]{grid-template-columns:1fr}.search-cta[data-astro-cid-dmqpwcec]{display:none}}.seal-mark[data-astro-cid-s6bthqqx]{display:inline-flex;align-items:center;justify-content:center;width:var(--s);height:var(--s);border:2px solid var(--vermilion);border-radius:4px;color:var(--vermilion);background:transparent;user-select:none;position:relative}.seal-mark[data-astro-cid-s6bthqqx]:after{content:"";position:absolute;inset:3px;border:1px solid var(--vermilion);border-radius:2px;opacity:.35}.seal-glyph[data-astro-cid-s6bthqqx]{font-family:var(--serif);font-size:calc(var(--s) * .48);line-height:1}.foot[data-astro-cid-sz7xmlte]{margin-top:var(--ma);padding-bottom:3rem}.foot-inner[data-astro-cid-sz7xmlte]{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:2.5rem;padding-top:3.5rem}.foot-word[data-astro-cid-sz7xmlte]{font-size:1.2rem;font-weight:600;color:var(--ink)}.foot-word[data-astro-cid-sz7xmlte] span[data-astro-cid-sz7xmlte]{color:var(--vermilion)}.foot-about[data-astro-cid-sz7xmlte]{color:var(--ink-soft);font-style:italic;max-width:30ch;margin:.7rem 0 1.4rem}.foot-col[data-astro-cid-sz7xmlte] ul[data-astro-cid-sz7xmlte]{list-style:none;margin:.9rem 0 0;padding:0}.foot-col[data-astro-cid-sz7xmlte] li[data-astro-cid-sz7xmlte]{margin-bottom:.45rem}.foot-col[data-astro-cid-sz7xmlte] a[data-astro-cid-sz7xmlte]{color:var(--ink-soft);font-size:.95rem;transition:color .2s var(--ease)}.foot-col[data-astro-cid-sz7xmlte] a[data-astro-cid-sz7xmlte]:hover{color:var(--vermilion)}.foot-toggle[data-astro-cid-sz7xmlte]{margin-top:1.4rem}.foot-base[data-astro-cid-sz7xmlte]{display:flex;justify-content:space-between;gap:1rem;margin-top:3rem;font-family:var(--mono);font-size:.7rem;letter-spacing:.08em;color:var(--ink-soft);opacity:.8}@media(max-width:720px){.foot-inner[data-astro-cid-sz7xmlte]{grid-template-columns:1fr 1fr}.foot-brand[data-astro-cid-sz7xmlte]{grid-column:1 / -1}.foot-base[data-astro-cid-sz7xmlte]{flex-direction:column;gap:.4rem}}.brush-underline[data-astro-cid-jjy4sv3g]{display:block;width:var(--bw);height:.7rem;margin-top:.6rem}