:root{--color-bg:#fbf9f6;--color-surface:#fff;--color-text:#2b2724;--color-muted:#6f6862;--color-line:#e7e1d9;--color-accent:#a8844f;--color-accent-dark:#85673a;--color-error-bg:#fdf0ee;--color-error:#a63a2b;--color-success-bg:#eff6ef;--color-success:#2f6b3a;--font-sans:"Hiragino Sans", "Hiragino Kaku Gothic ProN", "Noto Sans JP", "Yu Gothic", Meiryo, sans-serif;--font-serif:"Hiragino Mincho ProN", "Yu Mincho", "Noto Serif JP", serif;--font-latin:"Cormorant Garamond", Georgia, "Times New Roman", serif;--content-width:1080px;--text-width:720px;--gutter:clamp(16px, 4vw, 32px);--radius:6px}*,:before,:after{box-sizing:border-box}html{-webkit-text-size-adjust:100%}body{background:var(--color-bg);color:var(--color-text);font-family:var(--font-sans);letter-spacing:.03em;margin:0;font-size:16px;line-height:1.9}img{max-width:100%;height:auto;display:block}a{color:var(--color-accent-dark);text-underline-offset:3px}a:hover{color:var(--color-accent)}h1,h2,h3{font-family:var(--font-serif);letter-spacing:.06em;font-weight:500;line-height:1.5}:focus-visible{outline:2px solid var(--color-accent);outline-offset:2px}.container{width:100%;max-width:var(--content-width);padding-inline:var(--gutter);margin-inline:auto}.section{padding-block:clamp(48px,8vw,88px)}.section-title{text-align:center;margin:0 0 2.5rem;font-size:1.5rem}.section-title .en{font-family:var(--font-latin);color:var(--color-accent);letter-spacing:.12em;font-size:.95rem;font-style:italic;display:block}.prose{max-width:var(--text-width);margin-inline:auto}.prose h2{border-bottom:1px solid var(--color-line);margin:2.5em 0 .8em;padding-bottom:.4em;font-size:1.25rem}.prose p,.prose ul,.prose ol{margin:0 0 1.2em}.prose img{border-radius:var(--radius);margin-block:1.5em}.button{border:1px solid var(--color-accent);background:var(--color-accent);color:#fff;letter-spacing:.08em;cursor:pointer;border-radius:999px;padding:.75em 2em;font-size:.95rem;text-decoration:none;transition:background-color .2s;display:inline-block}.button:hover{background:var(--color-accent-dark);color:#fff}.button--ghost{color:var(--color-accent-dark);background:0 0}.button--ghost:hover{background:var(--color-accent);color:#fff}.center{text-align:center}.visually-hidden{clip:rect(0 0 0 0);white-space:nowrap;width:1px;height:1px;position:absolute;overflow:hidden}.header[data-astro-cid-nen7h5rs]{background:var(--color-surface);border-bottom:1px solid var(--color-line);z-index:10;position:sticky;top:0}.header__inner[data-astro-cid-nen7h5rs]{justify-content:space-between;align-items:center;min-height:72px;display:flex}.header__logo[data-astro-cid-nen7h5rs] img[data-astro-cid-nen7h5rs]{width:170px}summary[data-astro-cid-nen7h5rs]{cursor:pointer;place-items:center;width:44px;height:44px;list-style:none;display:grid}summary[data-astro-cid-nen7h5rs]::-webkit-details-marker{display:none}summary[data-astro-cid-nen7h5rs] span[data-astro-cid-nen7h5rs],summary[data-astro-cid-nen7h5rs] span[data-astro-cid-nen7h5rs]:before,summary[data-astro-cid-nen7h5rs] span[data-astro-cid-nen7h5rs]:after{background:var(--color-text);width:22px;height:1.5px;display:block;position:relative}summary[data-astro-cid-nen7h5rs] span[data-astro-cid-nen7h5rs]:before,summary[data-astro-cid-nen7h5rs] span[data-astro-cid-nen7h5rs]:after{content:"";position:absolute}summary[data-astro-cid-nen7h5rs] span[data-astro-cid-nen7h5rs]:before{top:-7px}summary[data-astro-cid-nen7h5rs] span[data-astro-cid-nen7h5rs]:after{top:7px}nav[data-astro-cid-nen7h5rs]{background:var(--color-surface);border-bottom:1px solid var(--color-line);position:absolute;top:100%;left:0;right:0}ul[data-astro-cid-nen7h5rs]{padding:8px var(--gutter) 16px;margin:0;list-style:none}li[data-astro-cid-nen7h5rs] a[data-astro-cid-nen7h5rs]{color:var(--color-text);border-bottom:1px solid var(--color-line);align-items:baseline;gap:1em;padding:10px 0;text-decoration:none;display:flex}.en[data-astro-cid-nen7h5rs]{font-family:var(--font-latin);color:var(--color-accent-dark);min-width:4.5em;font-size:1.1rem;font-style:italic}.ja[data-astro-cid-nen7h5rs]{color:var(--color-muted);font-size:.8rem}[data-astro-cid-nen7h5rs][aria-current=page] .en[data-astro-cid-nen7h5rs]{text-underline-offset:5px;text-decoration:underline}@media (width>=860px){summary[data-astro-cid-nen7h5rs]{display:none}.nav-toggle[data-astro-cid-nen7h5rs]>nav[data-astro-cid-nen7h5rs]{background:0 0;border:0;display:block;position:static}ul[data-astro-cid-nen7h5rs]{gap:1.6rem;padding:0;display:flex}li[data-astro-cid-nen7h5rs] a[data-astro-cid-nen7h5rs]{border:0;padding:0;display:block}.ja[data-astro-cid-nen7h5rs]{display:none}.en[data-astro-cid-nen7h5rs]{min-width:0}}.footer[data-astro-cid-jo6i4kqk]{background:var(--color-surface);border-top:1px solid var(--color-line);text-align:center;padding-block:40px 24px;font-size:.85rem}ul[data-astro-cid-jo6i4kqk]{flex-wrap:wrap;justify-content:center;gap:.4rem 1.4rem;margin:0 0 1rem;padding:0;list-style:none;display:flex}a[data-astro-cid-jo6i4kqk]{color:var(--color-muted);text-decoration:none}a[data-astro-cid-jo6i4kqk]:hover{color:var(--color-accent-dark)}.footer__copy[data-astro-cid-jo6i4kqk]{color:var(--color-muted);font-family:var(--font-latin);letter-spacing:.08em;margin:1.5rem 0 0}