:root{--bg:#eef1ec;--raise:#f6f8f4;--panel:#e1e6df;--line:rgba(18,25,21,.14);--ink:#121915;--dim:#56605a;--faint:#7c867f;--accent:#256b4e;--soft:rgba(37,107,78,.12)}
@media(prefers-color-scheme:dark){:root{--bg:#12161b;--raise:#171c22;--panel:#1a2027;--line:rgba(200,215,210,.16);--ink:#e7ecea;--dim:#9ba6ad;--faint:#74818a;--accent:#3ed598;--soft:rgba(62,213,152,.14)}}
*{box-sizing:border-box}html{max-width:100%;overflow-x:hidden;scroll-behavior:smooth}body{max-width:100%;overflow-x:hidden;margin:0;background:var(--bg);color:var(--ink);font-family:"Noto Sans JP",sans-serif;line-height:1.85;-webkit-font-smoothing:antialiased}h1,h2,h3{font-family:"Zen Kaku Gothic New","Noto Sans JP",sans-serif;line-height:1.45;text-wrap:balance}p,li,a{overflow-wrap:anywhere}img,svg{max-width:100%}a{color:var(--accent)}.wrap{width:100%;max-width:1040px;min-width:0;margin:auto;padding:0 clamp(20px,4vw,40px)}
.site{position:sticky;top:0;z-index:20;background:color-mix(in srgb,var(--bg) 88%,transparent);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}.nav-row{height:68px;display:flex;align-items:center;justify-content:space-between;gap:24px}.wordmark{display:flex;align-items:center;gap:10px;color:var(--ink);font:500 1rem "JetBrains Mono",monospace;text-decoration:none;white-space:nowrap}.mark{width:20px;height:20px}.mark circle{stroke:var(--accent)}.mark .dot{fill:var(--accent)}.links{display:flex;align-items:center;gap:24px}.links a{color:var(--dim);font-size:.88rem;text-decoration:none;white-space:nowrap}.menu-toggle{display:none;width:44px;height:44px;padding:10px;border:1px solid var(--line);background:transparent;color:var(--ink)}.menu-toggle span{display:block;height:2px;margin:5px 0;background:currentColor}.btn{display:inline-flex;justify-content:center;padding:9px 18px;border:1px solid var(--accent);border-radius:3px;background:var(--accent);color:var(--raise)!important;text-decoration:none!important;font-size:.88rem;font-weight:600}.btn.line{background:transparent;color:var(--ink)!important;border-color:var(--line)}
.hero{padding:clamp(52px,8vw,92px) 0 clamp(42px,6vw,68px)}.eyebrow{display:flex;align-items:center;gap:.6em;color:var(--accent);font:12px "JetBrains Mono",monospace;letter-spacing:.16em;text-transform:uppercase}.eyebrow:before{content:"";width:7px;height:7px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 3px var(--soft)}.hero h1{max-width:19em;margin:18px 0 0;font-size:clamp(2rem,4.5vw,3.25rem)}.hero h1 em{color:var(--accent);font-style:normal}.lead{max-width:43em;margin:22px 0 0;color:var(--dim);font-size:1.04rem}.hero-actions,.related{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.layout{display:grid;grid-template-columns:220px minmax(0,1fr);gap:clamp(32px,6vw,72px);align-items:start;padding-bottom:80px}.toc{position:sticky;top:96px;border-left:1px solid var(--line);padding-left:18px}.toc strong{font:12px "JetBrains Mono",monospace;letter-spacing:.12em;color:var(--faint)}.toc a{display:block;margin-top:10px;color:var(--dim);font-size:.86rem;text-decoration:none}.article{min-width:0}.article section{padding:0 0 58px}.article section+section{padding-top:58px;border-top:1px solid var(--line)}.article h2{margin:0 0 16px;font-size:clamp(1.45rem,3vw,2rem)}.article h3{margin:28px 0 8px;font-size:1.08rem}.article p{color:var(--dim);margin:0 0 18px}.article ul,.article ol{color:var(--dim);padding-left:1.3em}.article li+li{margin-top:8px}
.cards{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;margin-top:24px}.card{padding:24px;border:1px solid var(--line);background:var(--raise)}.card h3{margin:0 0 8px}.card p{margin:0;font-size:.92rem}.more{display:inline-block;margin-top:14px;font-size:.9rem;font-weight:600}.flow{counter-reset:step;display:grid;gap:14px;margin-top:24px}.step{position:relative;padding:22px 22px 22px 70px;border:1px solid var(--line);background:var(--raise)}.step:before{counter-increment:step;content:counter(step,decimal-leading-zero);position:absolute;left:22px;top:22px;color:var(--accent);font:12px "JetBrains Mono",monospace}.step h3{margin:0 0 5px}.step p{margin:0;font-size:.92rem}.note{margin:24px 0;padding:20px 22px;border-left:3px solid var(--accent);background:var(--soft);color:var(--dim)}pre{overflow:auto;margin:20px 0;padding:20px;border:1px solid var(--line);background:#10151a;color:#dbe7e2;font:14px/1.7 "JetBrains Mono",monospace}.cta{padding:clamp(28px,5vw,44px);border:1px solid var(--line);background:var(--raise)}.cta h2{margin-bottom:10px}.related a{padding:8px 13px;border:1px solid var(--line);text-decoration:none;font-size:.88rem}
footer{border-top:1px solid var(--line);padding:28px 0 40px}.footer-row{display:flex;justify-content:space-between;gap:18px;flex-wrap:wrap;color:var(--faint);font:12px "JetBrains Mono",monospace}.footer-links{display:flex;gap:16px;flex-wrap:wrap}.footer-row a{color:var(--faint);text-decoration:none}
@media(max-width:760px){.nav-row{height:60px;gap:10px}.wordmark{flex:1 1 auto;min-width:0;white-space:normal;font-size:.78rem;line-height:1.25}.menu-toggle{display:block;flex:none}.links{display:none;position:absolute;top:100%;left:0;right:0;padding:14px 20px 20px;flex-direction:column;align-items:stretch;background:var(--bg);border-bottom:1px solid var(--line)}.links.is-open{display:flex}.links a{padding:9px 4px}.btn{max-width:100%;white-space:normal;text-align:center}.layout{grid-template-columns:minmax(0,1fr)}.toc{position:static;padding:18px;border:1px solid var(--line);background:var(--raise)}.cards{grid-template-columns:minmax(0,1fr)}pre{max-width:100%}}