:root{--bg:#f4f6f7;--card:#fff;--ink:#101418;--muted:#5b6670;--line:#dde3e6;--ok:#15803d;--no:#b91c1c;--hold:#a16207;--max:980px}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);font-family:"Hiragino Kaku Gothic ProN","Hiragino Sans","Noto Sans JP","Yu Gothic",Meiryo,sans-serif;font-size:16px;line-height:1.85}
img{max-width:100%;display:block;height:auto}
a{color:#0f6b3a;text-decoration:none}
a:hover{text-decoration:underline}
h1,h2,h3{line-height:1.4;margin:0;font-weight:800;letter-spacing:-.015em}
p{margin:0}
.wrap{max-width:var(--max);margin:0 auto;padding:0 20px}
.narrow{max-width:700px}
.mono{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:11px;letter-spacing:.16em;text-transform:uppercase;color:var(--ok)}
.skip{position:absolute;left:-9999px}
.skip:focus{left:10px;top:10px;background:var(--ok);color:#fff;padding:8px 12px;z-index:99}

.hd{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:40}
.hd-in{display:flex;align-items:center;gap:18px;min-height:60px}
.br{display:inline-flex;align-items:center;gap:9px;color:var(--ink);font-size:14px}
.br:hover{text-decoration:none}
.bm{font-family:ui-monospace,monospace;background:var(--ink);color:#7ee2a8;padding:2px 7px;border-radius:5px;font-size:11.5px}
.nv{display:flex;gap:18px;font-size:13px;margin-left:auto}
.nv a{color:var(--muted)}
.nv a:hover{color:var(--ok);text-decoration:none}
.yt{font-size:12px;font-weight:700;border:1px solid var(--line);padding:5px 11px;border-radius:7px;color:var(--ink)}
.yt:hover{background:var(--ink);color:#fff;border-color:var(--ink);text-decoration:none}
.bg{display:none;background:none;border:0;padding:10px;cursor:pointer;margin-left:auto}
.bg span{display:block;width:20px;height:2px;background:var(--ink);margin:5px 0}

.hero{padding:56px 0 30px;border-bottom:1px solid var(--line);background:#fff}
.hero h1{font-size:clamp(28px,5vw,44px);line-height:1.25;margin-top:12px}
.lead{color:var(--muted);margin-top:18px;max-width:38em;font-size:15px}
.acts{display:flex;gap:10px;flex-wrap:wrap;margin-top:24px}
.go{background:var(--ink);color:#fff;font-weight:700;font-size:14px;padding:12px 22px;border-radius:8px}
.go:hover{text-decoration:none;background:#233}
.go2{border:1px solid var(--line);color:var(--ink);font-weight:700;font-size:14px;padding:12px 22px;border-radius:8px}
.go2:hover{border-color:var(--ink);text-decoration:none}

.stat{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);border:1px solid var(--line);margin-top:26px}
.stat div{background:#fff;padding:16px;text-align:center}
.stat b{display:block;font-family:ui-monospace,monospace;font-size:22px}
.stat span{font-size:11.5px;color:var(--muted)}
.hsub{color:var(--muted);font-size:13.5px;margin-top:12px}
.h2{font-size:18px;margin:40px 0 14px}
.more{margin-top:14px;font-size:13.5px}

.log{list-style:none;margin:0;padding:0;border-top:1px solid var(--line);background:#fff;border:1px solid var(--line)}
.log li{border-bottom:1px solid var(--line)}
.log li:last-child{border-bottom:0}
.log a{display:flex;gap:12px;align-items:center;padding:11px 14px;color:var(--ink);font-size:14px}
.log a:hover{background:#f8fafb;text-decoration:none}
.hash{font-family:ui-monospace,monospace;font-size:11.5px;color:#0f6b3a;background:#eefaf2;border:1px solid #cfeddb;padding:1px 6px;border-radius:4px}
.hash.lg{font-size:13px;padding:3px 9px}
.lt{flex:1;font-weight:600;line-height:1.6}
.tg{font-size:11px;color:var(--muted);border:1px solid var(--line);padding:1px 7px;border-radius:999px;white-space:nowrap}
.bd{font-size:10.5px;font-weight:700;padding:1px 7px;border-radius:4px;white-space:nowrap}
.bd.ok{color:var(--ok);background:#eefaf2;border:1px solid #cfeddb}
.bd.no{color:var(--no);background:#fdf0f0;border:1px solid #f6d5d5}
.bd.hold{color:var(--hold);background:#fdf6e7;border:1px solid #f0e0bb}
.dt{font-family:ui-monospace,monospace;font-size:11px;color:var(--muted);white-space:nowrap}

.tags{display:flex;gap:9px;flex-wrap:wrap}
.tags a{border:1px solid var(--line);background:#fff;padding:7px 13px;border-radius:999px;font-size:13px;color:var(--ink)}
.tags a:hover{border-color:var(--ok);text-decoration:none}
.tags i{font-style:normal;color:var(--muted);font-size:11px;margin-left:6px}
.panes{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.pane{background:#fff;border:1px solid var(--line);padding:18px}
.pane h3{font-size:14.5px;margin-bottom:7px}
.pane p{font-size:13.5px;color:var(--muted)}

.faq details{background:#fff;border:1px solid var(--line);padding:13px 15px;margin-bottom:8px}
.faq summary{cursor:pointer;list-style:none;font-weight:700;font-size:14px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::before{content:"? ";color:var(--ok);font-family:ui-monospace,monospace}
.faq p{font-size:13.5px;color:var(--muted);margin-top:9px}
.cta{background:#fff;border:1px solid var(--line);padding:20px;text-align:center;margin:20px 0 46px}
.cta p{color:var(--muted);font-size:13.5px;margin-bottom:12px}
.cta a{display:inline-block;background:var(--ink);color:#fff;padding:10px 20px;border-radius:7px;font-size:13px;font-weight:700}
.cta a:hover{text-decoration:none;background:#233}

.bc{font-family:ui-monospace,monospace;font-size:11px;color:var(--muted);padding:20px 0 10px}
.bc a{color:var(--muted)}
h1{font-size:clamp(24px,4vw,32px);margin-top:8px}
.chead{padding-bottom:16px;border-bottom:1px solid var(--line)}
.cline{display:flex;gap:9px;align-items:center;flex-wrap:wrap;margin-bottom:10px}
.meta{border-collapse:collapse;font-family:ui-monospace,monospace;font-size:11.5px;color:var(--muted);margin-top:14px}
.meta th,.meta td{text-align:left;padding:3px 14px 3px 0;font-weight:400}
.meta th{color:#8b959d}
.body{padding:20px 0}
.body h2{font-size:16px;margin:26px 0 8px;padding-left:10px;border-left:3px solid var(--ok)}
.body p{font-size:15px;color:#2b333a;margin:10px 0}
.steps{margin:8px 0;padding-left:1.3em;font-size:15px;color:#2b333a}
.steps li{margin:5px 0}
.diff{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin:12px 0}
.dcol{border:1px solid var(--line);background:#fff;padding:10px 12px}
.dcol.minus{background:#fdf3f3;border-color:#f0d3d3}
.dcol.plus{background:#f0faf4;border-color:#cdebd8}
.dh{font-family:ui-monospace,monospace;font-size:10.5px;color:var(--muted);margin-bottom:7px}
.dl{font-family:ui-monospace,monospace;font-size:12.5px;line-height:1.75;display:flex;gap:7px;color:#333}
.dl span{color:var(--muted)}
.minus .dl span{color:var(--no)}
.plus .dl span{color:var(--ok)}
.learn{background:#fff;border:1px solid var(--line);border-left:3px solid var(--ok);padding:13px 15px}
.learn p{font-size:14.5px}
.pn{display:flex;gap:10px;margin-top:26px}
.pn a{flex:1;background:#fff;border:1px solid var(--line);padding:11px 13px;font-size:12.5px;color:var(--ink);border-radius:7px}
.pn a:hover{border-color:var(--ok);text-decoration:none}
.pn span{display:block;font-size:10px;color:var(--muted);margin-bottom:3px}
.pn .nx{text-align:right}
.ph{flex:1}
.rel{border-top:1px solid var(--line);margin-top:28px;padding-top:16px}
.rel h2{font-size:13px;margin-bottom:8px}
.rel ul{list-style:none;padding:0;margin:0}
.rel li{display:flex;justify-content:space-between;gap:12px;padding:8px 0;border-bottom:1px solid var(--line);font-size:13.5px}
.rel li span{font-size:11px;color:var(--muted)}
.back{margin:22px 0 46px;font-size:13.5px}
.nf{padding:70px 0 90px}
.box{background:#fff;border:1px solid var(--line);padding:14px 16px;margin:18px 0}
.box p{font-size:13px;margin:3px 0;color:var(--muted)}
.tbl{width:100%;border-collapse:collapse;font-size:13.5px;margin:16px 0;background:#fff}
.tbl th,.tbl td{border:1px solid var(--line);padding:8px 11px;text-align:left;vertical-align:top}
.tbl th{background:#f7f9fa;color:var(--muted);font-weight:400;white-space:nowrap}
code{font-family:ui-monospace,monospace;font-size:12px;background:#eef2f4;padding:1px 5px;border-radius:4px}
.ul{list-style:none;padding:0;margin:12px 0;font-size:14.5px;color:#2b333a}
.ul li{padding:4px 0 4px 16px;position:relative}
.ul li::before{content:"-";position:absolute;left:0;color:var(--ok);font-family:ui-monospace,monospace}
.upd{font-size:11.5px;color:var(--muted);margin-top:8px;font-family:ui-monospace,monospace}

.ft{border-top:1px solid var(--line);background:#fff;padding:34px 0 28px;font-size:12.5px;margin-top:20px}
.fg{display:grid;grid-template-columns:1.7fr 1fr 1fr;gap:26px}
.fd{color:var(--muted);font-size:12px;margin:10px 0;line-height:1.8}
.fyt{font-size:12px;font-weight:700}
.ft nav h3{font-size:10px;letter-spacing:.16em;color:var(--muted);margin-bottom:8px}
.ft nav a{display:block;color:var(--ink);padding:2px 0;font-size:12px}
.fl2{border-top:1px solid var(--line);margin-top:24px;padding-top:14px;font-size:11px;color:var(--muted)}
.fl2 p{margin:2px 0}
.cp{margin-top:8px}

@media(max-width:860px){
.nv{display:none;position:absolute;top:100%;left:0;right:0;background:#fff;border-bottom:1px solid var(--line);flex-direction:column;gap:0;padding:6px 20px 16px}
.nv.open{display:flex}
.nv a{padding:11px 0;border-bottom:1px solid var(--line)}
.yt{display:none}
.bg{display:block}
.stat{grid-template-columns:repeat(2,1fr)}
.panes,.fg,.diff{grid-template-columns:1fr}
.log a{flex-wrap:wrap;gap:8px}
.lt{flex:1 0 100%;order:3}
}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}