:root{--paper: #ffffff;--paper-deep: #f5f0e6;--surface: #ffffff;--ink: #363432;--ink-soft: #635f59;--muted: #9c958b;--line: #ebe6df;--line-strong: #d9d2c5;--accent: #d67a63;--accent-deep: #b85d47;--accent-soft: #faebe6;--plum: #86728d;--code-bg: #2b2a28;--code-ink: #f0ece3;--serif: "EB Garamond", "Noto Serif SC", "Noto Serif JP", Georgia, "Songti SC", serif;--serif-cjk: "Noto Serif SC", "Noto Serif JP", "Songti SC", Georgia, serif;--sans: "Noto Serif SC", system-ui, -apple-system, "Segoe UI", sans-serif;--measure: 46rem;--wrap: 72rem}*,*:before,*:after{box-sizing:border-box}html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}body{margin:0;background-color:var(--paper);background-image:radial-gradient(circle at 12% -8%,#fff0e6 0%,transparent 42%),radial-gradient(circle at 88% 4%,#e6efff 0%,transparent 38%);color:var(--ink);font-family:var(--serif-cjk);font-size:17px;line-height:1.9;font-feature-settings:"palt" 1;text-rendering:optimizeLegibility}a{color:var(--accent-deep);text-decoration:none;text-underline-offset:3px;transition:color .18s ease}a:hover{color:var(--accent);text-decoration:underline;text-decoration-color:var(--line-strong)}img{max-width:100%;height:auto}.skip-link{position:absolute;left:-999px;top:0;background:var(--surface);padding:.6rem 1rem;z-index:100}.skip-link:focus{left:0}.wrap{width:100%;max-width:var(--wrap);margin-inline:auto;padding-inline:clamp(1.1rem,4vw,2.5rem)}.site-header{border-bottom:1px solid var(--line);background:color-mix(in srgb,var(--paper) 82%,transparent);backdrop-filter:blur(6px);position:sticky;top:0;z-index:40}.header-inner{display:flex;align-items:center;justify-content:space-between;gap:1.5rem;padding-block:1.1rem}.branding{min-width:0}.site-title{display:flex;align-items:baseline;gap:.7rem;color:var(--ink);text-decoration:none}.site-title:hover{text-decoration:none}.site-title-main{font-family:var(--serif-cjk);font-size:clamp(1.5rem,4vw,1.9rem);font-weight:600;letter-spacing:.28em;padding-left:.28em}.site-title-sub{font-family:var(--serif);font-style:italic;font-size:1rem;color:var(--muted);letter-spacing:.04em}.site-description{margin:.15rem 0 0;font-size:.82rem;color:var(--muted);letter-spacing:.08em}.site-nav ul{display:flex;align-items:center;gap:clamp(.9rem,2.2vw,1.7rem);margin:0;padding:0;list-style:none}.site-nav a{color:var(--ink-soft);font-size:.92rem;letter-spacing:.05em;position:relative;padding-block:.3rem}.site-nav a:after{content:"";position:absolute;left:0;bottom:0;width:100%;height:1px;background:var(--accent);transform:scaleX(0);transform-origin:left;transition:transform .22s ease}.site-nav a:hover:after,.site-nav a.active:after{transform:scaleX(1)}.site-nav a.active{color:var(--accent-deep)}.nav-toggle,.nav-toggle-label{display:none}.content{padding-block:clamp(2rem,5vw,3.6rem) clamp(3rem,7vw,5rem)}.site-footer{border-top:1px solid var(--line);padding-block:2.4rem;color:var(--muted);font-size:.86rem;letter-spacing:.03em}.site-footer p{margin:0;text-align:center}.site-footer .sep{margin-inline:.5rem;color:var(--line-strong)}.prose{font-size:1.06rem;line-height:1.95;color:var(--ink)}.prose>*+*{margin-top:1.35em}.prose h2,.prose h3,.prose h4{font-family:var(--serif-cjk);color:var(--ink);line-height:1.4;margin-top:2.2em;margin-bottom:.7em;letter-spacing:.02em}.prose h2{font-size:1.5rem;padding-bottom:.35em;border-bottom:1px solid var(--line)}.prose h3{font-size:1.25rem}.prose p{margin:0}.prose strong{color:var(--ink);font-weight:700}.prose blockquote{margin:1.6em 0;padding:.4em 1.3em;border-left:3px solid var(--accent);background:linear-gradient(90deg,var(--accent-soft),transparent 92%);color:var(--ink-soft);font-style:normal;border-radius:0 4px 4px 0}.prose blockquote p+p{margin-top:.9em}.prose hr{border:0;height:1px;background:var(--line);margin:2.4em auto;width:60%}.prose ul,.prose ol{padding-left:1.5em;margin-block:1.3em}.prose li+li{margin-top:.4em}.prose code{font-family:SFMono-Regular,ui-monospace,Cascadia Code,Consolas,monospace;font-size:.86em;background:var(--accent-soft);color:var(--accent-deep);padding:.12em .38em;border-radius:4px}.prose pre{background:var(--code-bg);color:var(--code-ink);padding:1.1rem 1.2rem;border-radius:8px;overflow-x:auto;font-size:.86rem;line-height:1.6}.prose pre code{background:none;color:inherit;padding:0}.prose img{border-radius:6px;box-shadow:0 10px 30px #2b2a2814}.prose figure{margin:1.8em 0;text-align:center}.prose figcaption{font-size:.85rem;color:var(--muted);margin-top:.5em}.prose a{border-bottom:1px solid color-mix(in srgb,var(--accent) 40%,transparent)}.prose table{display:block;width:100%;max-width:100%;overflow-x:auto;border-collapse:collapse}.prose th,.prose td{padding:.5rem .75rem;border:1px solid var(--line);text-align:left}@media(max-width:780px){.header-inner{flex-wrap:wrap}.nav-toggle-label{display:flex;flex-direction:column;justify-content:center;gap:5px;width:34px;height:34px;cursor:pointer}.nav-toggle-label span{display:block;height:2px;background:var(--ink-soft);border-radius:2px;transition:transform .2s ease,opacity .2s ease}.nav-toggle:checked~.nav-toggle-label span:nth-child(1){transform:translateY(7px) rotate(45deg)}.nav-toggle:checked~.nav-toggle-label span:nth-child(2){opacity:0}.nav-toggle:checked~.nav-toggle-label span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}.site-nav{flex-basis:100%;max-height:0;overflow:hidden;transition:max-height .28s ease}.nav-toggle:checked~.site-nav{max-height:22rem}.site-nav ul{flex-direction:column;align-items:flex-start;gap:0;padding-top:.5rem}.site-nav li{width:100%;border-top:1px solid var(--line)}.site-nav a{display:block;padding-block:.8rem}}