:root{--bg: #0a0c11;--bg-elev: rgba(255, 255, 255, .035);--bg-elev-strong: rgba(255, 255, 255, .06);--text: #e9ecf3;--text-muted: #98a2b8;--accent: #4f8ff7;--accent-2: #22d3ee;--grad: linear-gradient(120deg, #4f8ff7 0%, #22d3ee 100%);--border: rgba(255, 255, 255, .09);--border-hover: rgba(94, 156, 255, .55);--glow: 0 8px 40px rgba(59, 130, 246, .18);--chip-bg: rgba(79, 143, 247, .14);--radius: 16px;color-scheme:dark}@media(prefers-color-scheme:light){:root{--bg: #f5f7fb;--bg-elev: #ffffff;--bg-elev-strong: #ffffff;--text: #101828;--text-muted: #5d6b82;--accent: #2563eb;--accent-2: #0891b2;--grad: linear-gradient(120deg, #2563eb 0%, #0891b2 100%);--border: #e3e8f0;--border-hover: rgba(37, 99, 235, .5);--glow: 0 10px 34px rgba(37, 99, 235, .12);--chip-bg: rgba(37, 99, 235, .09);color-scheme:light}}*{box-sizing:border-box}html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--text);font-family:Noto Sans JP,-apple-system,BlinkMacSystemFont,Hiragino Sans,sans-serif;line-height:1.95;font-size:16px;letter-spacing:.01em}body:before{content:"";position:fixed;inset:0;z-index:-1;pointer-events:none;background:radial-gradient(640px 420px at 88% -8%,rgba(34,211,238,.13),transparent 62%),radial-gradient(760px 520px at -12% 24%,rgba(79,143,247,.12),transparent 62%)}::selection{background:#4f8ff759}a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline;text-underline-offset:3px}.container{max-width:46rem;margin:0 auto;padding:0 1.3rem}h1,h2,h3,.site-title{font-family:Space Grotesk,Noto Sans JP,sans-serif;font-feature-settings:"palt";letter-spacing:.015em}.site-header{position:sticky;top:0;z-index:10;backdrop-filter:blur(16px) saturate(1.4);-webkit-backdrop-filter:blur(16px) saturate(1.4);background:color-mix(in srgb,var(--bg) 72%,transparent);border-bottom:1px solid var(--border);padding:.9rem 0;margin-bottom:3.2rem}.brand{display:flex;align-items:center;gap:.65rem}.brand-mark{display:grid;place-items:center;width:2.1rem;height:2.1rem;border-radius:10px;background:var(--grad);color:#fff;font-size:1.1rem;box-shadow:0 4px 18px #3b82f666}.site-title{margin:0;font-size:1.28rem;font-weight:700;line-height:1.2}.site-title a{color:var(--text)}.site-title a:hover{text-decoration:none}.site-tagline{margin:.1rem 0 0;font-size:.72rem;color:var(--text-muted);letter-spacing:.04em}.site-nav{display:flex;flex-wrap:wrap;gap:.45rem;margin-top:.85rem}.site-nav a{font-size:.8rem;color:var(--text-muted);border:1px solid var(--border);border-radius:999px;padding:.14rem .85rem;transition:all .18s ease}.site-nav a:hover{color:var(--accent);border-color:var(--border-hover);text-decoration:none;background:var(--chip-bg)}.hero{margin:0 0 2.6rem}.hero h1{font-size:clamp(1.75rem,5.4vw,2.5rem);line-height:1.45;margin:0 0 1rem;font-weight:700}.hero h1 .grad{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}.hero p{color:var(--text-muted);margin:0;max-width:40rem}.profile{display:flex;gap:1.25rem;align-items:flex-start;background:var(--bg-elev);border:1px solid var(--border);border-radius:var(--radius);padding:1.4rem 1.5rem;backdrop-filter:blur(8px)}.avatar{flex:0 0 auto;width:3.4rem;height:3.4rem;border-radius:50%;background:var(--grad);display:grid;place-items:center;color:#fff;font-family:Space Grotesk,sans-serif;font-weight:700;font-size:1.45rem;box-shadow:0 4px 18px #3b82f659}.profile-name{margin:0;font-size:1.08rem;font-weight:700;font-family:Space Grotesk,Noto Sans JP,sans-serif}.profile-role{margin:.05rem 0 0;font-size:.75rem;color:var(--text-muted);letter-spacing:.05em}.profile-bio{margin:.6rem 0 .5rem;font-size:.88rem;color:var(--text-muted);line-height:1.85}.profile-link{margin:0;font-size:.85rem}.eyebrow{font-family:Space Grotesk,sans-serif;font-size:.72rem;font-weight:700;letter-spacing:.22em;text-transform:uppercase;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;margin:3rem 0 .2rem}.section-title{font-size:1.3rem;margin:0 0 1.3rem;font-weight:700}.post-card{position:relative;background:var(--bg-elev);border:1px solid var(--border);border-radius:var(--radius);margin-bottom:1rem;transition:transform .18s ease,border-color .18s ease,box-shadow .18s ease;backdrop-filter:blur(8px)}.post-card:hover{transform:translateY(-3px);border-color:var(--border-hover);box-shadow:var(--glow)}.post-card-link{display:block;padding:1.15rem 1.35rem 1.2rem;color:inherit}.post-card-link:hover{text-decoration:none}.post-card h2{font-size:1.02rem;margin:.5rem 0 .35rem;line-height:1.65;font-weight:700}.post-card p{font-size:.85rem;color:var(--text-muted);margin:0;line-height:1.8}.post-card .arrow{position:absolute;right:1.2rem;top:1.2rem;color:var(--text-muted);opacity:0;transform:translate(-6px);transition:all .18s ease;font-family:Space Grotesk,sans-serif}.post-card:hover .arrow{opacity:1;transform:translate(0);color:var(--accent)}.post-card-meta{display:flex;align-items:center;gap:.7rem;font-size:.75rem;color:var(--text-muted)}.post-card-meta time{font-family:Space Grotesk,sans-serif;letter-spacing:.04em}.chip{display:inline-block;background:var(--chip-bg);color:var(--accent);border:1px solid transparent;border-radius:999px;padding:.02rem .75rem;font-size:.72rem;font-weight:700}a.chip:hover{text-decoration:none;border-color:var(--border-hover)}.post-header{margin-bottom:2rem}.post-header h1{font-size:1.55rem;line-height:1.6;margin:.7rem 0 0;font-weight:700}.prose h2{font-size:1.22rem;margin:2.6rem 0 1rem;padding-bottom:.45rem;line-height:1.55;position:relative}.prose h2:after{content:"";position:absolute;left:0;bottom:0;width:3.2rem;height:3px;border-radius:2px;background:var(--grad)}.prose h3{font-size:1.04rem;margin:1.9rem 0 .8rem}.prose img{max-width:100%;height:auto;border-radius:var(--radius)}.prose blockquote{margin:1.3rem 0;padding:.55rem 1.25rem;border-left:3px solid var(--accent);background:var(--bg-elev);border-radius:0 10px 10px 0;color:var(--text-muted)}.prose table{border-collapse:collapse;width:100%;margin:1.3rem 0;font-size:.88rem;display:block;overflow-x:auto;font-variant-numeric:tabular-nums}.prose th,.prose td{border:1px solid var(--border);padding:.5rem .85rem;text-align:left;white-space:nowrap}.prose th{background:var(--chip-bg);color:var(--accent);font-weight:700}.prose code{background:var(--bg-elev-strong);border:1px solid var(--border);border-radius:5px;padding:.08em .35em;font-size:.86em}.prose hr{border:none;border-top:1px solid var(--border);margin:2.4rem 0}.prose strong{color:var(--text)}.pr-note{background:var(--bg-elev);border:1px solid var(--border);border-radius:10px;padding:.55rem 1rem;font-size:.78rem;color:var(--text-muted);margin-bottom:1.6rem}.backlink{margin-top:3.2rem;font-size:.9rem}.site-footer{margin-top:5rem;padding:1.8rem 0 2.8rem;font-size:.8rem;color:var(--text-muted);border-top:1px solid var(--border);position:relative}.site-footer:before{content:"";position:absolute;top:-1px;left:0;width:100%;height:1px;background:linear-gradient(90deg,transparent,rgba(79,143,247,.6),transparent)}.site-footer nav{display:flex;flex-wrap:wrap;gap:.3rem 1.1rem;margin-bottom:.7rem}.site-footer a{color:var(--text-muted)}.site-footer a:hover{color:var(--accent)}.cat-icon{vertical-align:-.12em;margin-right:.15em}.site-nav a .cat-icon{opacity:.75}.chip{display:inline-flex;align-items:center;gap:.28em}.cat-title{display:flex;align-items:center;gap:.5rem;color:var(--accent)}.cat-title .cat-icon{flex:0 0 auto}.hero-car{margin:1.2rem auto 0;max-width:34rem}.hero-car svg{display:block;width:100%;height:auto}