:root{--bg:#f1f6f7;--ink:#3c464c;--faint:#8fa0a6;--accent:#40626f;--line:#d4e1e3;--font-main:"JetBrains Mono", "Hiragino Kaku Gothic ProN",
        "Hiragino Sans", "Noto Sans JP", Meiryo, sans-serif;--font-title:"WDXL Lubrifont JP N", "Hiragino Kaku Gothic ProN",
        "Hiragino Sans", Meiryo, sans-serif}*{margin:0;padding:0;box-sizing:border-box}html{font-size:16px}body{background-color:var(--bg);color:var(--ink);font-family:var(--font-main);line-height:1.9;min-height:100vh;display:flex;flex-direction:column}::selection{background:var(--accent);color:#fff}a{color:inherit;text-decoration:none}ul{list-style:none}img{max-width:100%}.sheet{width:100%;max-width:54rem;margin:0 auto;flex:1;display:flex;flex-direction:column;background:var(--bg);border-left:1px solid var(--line);border-right:1px solid var(--line)}body.bleed{background-color:#f5f9fa}.bleed-wrap{width:100%;flex:1;display:flex;flex-direction:column}.bleed-wrap .site-header{border-bottom:none;padding:1.8rem 2rem 1rem}.site-header{display:flex;align-items:baseline;justify-content:space-between;flex-wrap:wrap;gap:.5rem 1.5rem;padding:2.2rem 2.5rem 1.1rem;border-bottom:1px solid var(--line)}.site-title{font-family:var(--font-title);font-weight:400;font-size:1.3rem;letter-spacing:.12em}.site-title:hover{color:var(--accent)}.site-nav{display:flex;flex-wrap:wrap;gap:1.3rem;font-size:.9rem;color:var(--faint)}.site-nav a{padding-bottom:2px;border-bottom:1px solid transparent;transition:.15s}.site-nav a:hover{color:var(--accent)}.site-nav a.current{color:var(--accent);border-bottom-color:var(--accent)}.content{width:100%;padding:3.2rem 2.5rem 6rem;flex:1}.page-title{font-weight:500;font-size:1.5rem;letter-spacing:.06em;margin-bottom:2rem}.page-title::before{content:'# ';color:var(--accent);font-weight:400}body.home{overflow:hidden}.home-main{position:fixed;inset:0;background-image:url(/images/20260903.png);background-size:cover;background-position:50%;background-repeat:no-repeat}.home-box{position:fixed;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:1.6rem}.home-title{font-family:var(--font-title);font-weight:400;color:var(--accent);font-size:2.4rem;letter-spacing:.15em;text-shadow:0 0 12px rgba(255,255,255,.65);user-select:none}.home-nav{display:flex;flex-wrap:wrap;justify-content:center;gap:1.5rem;font-size:.95rem;color:var(--accent);text-shadow:0 0 8px rgba(255,255,255,.6)}.home-nav a{padding:.1em .7em;border-radius:4px;background:rgba(255,255,255,.45);backdrop-filter:blur(3px);transition:.15s}.home-nav a:hover{background:var(--accent);color:#fff;text-shadow:none}.entries li{display:flex;align-items:baseline;gap:1.1rem;padding:.8rem .1rem;border-bottom:1px solid var(--line);transition:border-color .15s}.entries li:hover{border-bottom-color:var(--accent)}.entries .date{font-size:.82rem;color:var(--faint);white-space:nowrap;font-variant-numeric:tabular-nums}.entries a{transition:.15s}.entries a:hover{color:var(--accent)}.post-date{font-size:.85rem;color:var(--faint);margin-bottom:.3rem}.prose{line-height:2}.prose p{margin-top:1.6rem}.prose h1,.prose h2{font-weight:500;font-size:1.25rem;letter-spacing:.04em;margin-top:3rem}.prose h1::before{content:'# ';color:var(--accent);font-weight:400}.prose h2::before{content:'## ';color:var(--accent);font-weight:400}.prose hr{border:none;margin:2.8rem 0;text-align:center}.prose hr::after{content:'* * *';color:var(--faint);letter-spacing:.6em}.prose h3{font-size:1.05rem;font-weight:500;margin-top:2.2rem}.prose a{color:var(--accent);border-bottom:1px solid}.prose ul{margin-top:1.2rem;padding-left:1.4rem;list-style:disc}.prose ol{margin-top:1.2rem;padding-left:1.5rem}.prose li{margin-top:.2rem}.prose blockquote{margin-top:1.6rem;padding-left:1.1rem;border-left:3px solid var(--line);color:var(--faint)}.prose img{display:block;margin-top:1.6rem;border-radius:4px}.prose iframe.yt{display:block;width:100%;aspect-ratio:16/9;height:auto;margin-top:1.6rem;border-radius:4px}.prose audio{display:block;margin-top:1.6rem;width:100%}.prose table{margin-top:1.6rem;border-collapse:collapse;display:block;overflow-x:auto}.prose th,.prose td{border:1px solid var(--line);padding:.3rem .7rem;font-size:.92rem}.prose .katex-display{overflow-x:auto;overflow-y:hidden;padding:.3rem 0}.prose code{font-size:.88em;background:#e2edef;padding:.1em .4em;border-radius:3px}.prose pre{margin-top:1.6rem;padding:1rem 1.2rem;border-radius:6px;overflow-x:auto;line-height:1.6}.prose pre code{background:0 0;padding:0}.backlink{display:inline-block;margin-top:3.5rem;font-size:.9rem;color:var(--faint);transition:.15s}.backlink:hover{color:var(--accent)}.toc{display:none;position:fixed;top:7.5rem;left:calc(50% + 28.5rem);width:15rem;font-size:.78rem;line-height:1.7}@media(min-width:1400px){.toc{display:block}}.toc-label{color:var(--faint);letter-spacing:.15em;margin-bottom:.5rem}.toc ul{border-left:1px solid var(--line);padding-left:.9rem;max-height:calc(100vh - 11rem);overflow-y:auto}.toc li{margin-top:.35rem}.toc li.d2{padding-left:.9rem}.toc a{color:var(--faint);transition:color .15s}.toc a:hover{color:var(--accent)}@media(max-width:600px){.sheet{border-left:none;border-right:none}.site-header{padding:1.6rem 1.3rem 1rem}.site-nav{gap:1rem}.content{padding:2.5rem 1.3rem 5rem}.home-title{font-size:1.7rem}.home-nav{gap:1.1rem;font-size:.9rem}}.prose .highlight{margin-top:1.6rem;border-radius:6px;overflow:hidden}.prose .highlight pre{margin-top:0;border-radius:0}.hall{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3.5rem;padding:4rem 2rem 8rem}.door{font-family:var(--font-title);font-weight:400;font-size:2.1rem;letter-spacing:.08em;transition:color .2s}.door:hover{color:var(--accent)}.piece{display:flex;flex-direction:column;align-items:center}.illust .piece{min-height:92vh;justify-content:center;padding:6vh 6vw}.work{max-width:min(880px,90vw);max-height:70vh;width:auto;height:auto}.p-title{margin-top:2.6rem;font-size:.95rem;letter-spacing:.08em;text-align:center}.p-date{margin-top:.4rem;font-size:.72rem;color:var(--faint);letter-spacing:.15em;text-align:center}.room{display:flex;flex-direction:column;align-items:center;padding:3.5rem 6vw 8rem}.room .piece{margin-bottom:4.5rem}.frame{position:relative;width:min(680px,88vw);height:118px;border:1px solid #c8d8db;background:#fdfeff;padding:24px 28px;cursor:pointer}.wv{position:absolute;inset:24px 28px;width:calc(100% - 56px);height:calc(100% - 48px);pointer-events:none}.wv-base rect{fill:#d2e0e2}.wv-on rect{fill:var(--accent)}.wv-on{clip-path:inset(0 100% 0 0);transition:clip-path .25s linear}.play{position:absolute;left:50%;bottom:-21px;transform:translateX(-50%);width:42px;height:42px;border-radius:50%;border:1px solid #c8d8db;background:#fdfeff;font-family:inherit;font-size:11px;color:var(--ink);cursor:pointer;transition:.15s}.play:hover{border-color:var(--accent);color:var(--accent)}.room .p-title{margin-top:1.7rem;font-size:.85rem;letter-spacing:.1em;color:var(--faint);font-variant-numeric:tabular-nums}