:root{color-scheme:light;--bg:#f5f6f3;--paper:#fff;--ink:#17201c;--muted:#5d6862;--border:#d8ded8;--soft:#edf1ed;--accent:#096b5d;--accent-dark:#075247;--warm:#9a4d18;--blue:#31567e;--radius:8px;--max:1180px;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}html{scroll-padding-top:7rem}*{box-sizing:border-box}html{background:var(--bg);color:var(--ink);letter-spacing:0;scroll-behavior:smooth;font-size:16px}body{min-width:320px;margin:0;line-height:1.65}a{color:var(--accent);text-underline-offset:.18em}a:hover{color:var(--warm)}[data-i18n=ja],html[data-language=ja] [data-i18n=en]{display:none}html[data-language=ja] [data-i18n=ja]{display:revert}.skip-link{z-index:20;color:#fff;background:var(--ink);border-radius:6px;padding:.55rem .8rem;position:absolute;top:-5rem;left:1rem}.skip-link:focus{top:1rem}.site-header{z-index:10;border-bottom:1px solid var(--border);background:#fffffff5;position:sticky;top:0}.site-header__inner,.site-main,.site-footer__inner{width:min(100% - 32px, var(--max));margin:0 auto}.site-header__inner{align-items:center;gap:1rem;min-height:68px;display:flex}.brand{color:var(--ink);white-space:nowrap;align-items:center;gap:.6rem;font-weight:800;text-decoration:none;display:inline-flex}.brand__mark{border:1px solid var(--ink);background:#fff;border-radius:6px;place-items:center;width:2rem;height:2rem;font-size:.9rem;display:grid}.site-nav{align-items:center;gap:.2rem;margin-left:auto;display:flex}.site-nav a{color:var(--muted);white-space:nowrap;border-radius:6px;padding:.42rem .58rem;font-size:.91rem;font-weight:680;text-decoration:none}.site-nav a:hover,.site-nav a[aria-current=page]{color:var(--ink);background:var(--soft)}.language-switch{border:1px solid var(--border);background:#fff;border-radius:6px;display:inline-flex;overflow:hidden}.language-switch button{border:0;border-left:1px solid var(--border);min-height:34px;color:var(--muted);font:inherit;cursor:pointer;background:0 0;padding:.25rem .52rem;font-size:.8rem;font-weight:700}.language-switch button:first-child{border-left:0}.language-switch button[aria-pressed=true]{color:#fff;background:var(--accent)}.site-main{padding:3.25rem 0 5rem}.hero{grid-template-columns:minmax(0,1.45fr) minmax(280px,.7fr);align-items:start;gap:2.2rem;padding:.7rem 0 3rem;display:grid}.eyebrow{color:var(--accent);text-transform:uppercase;margin:0 0 .75rem;font-size:.8rem;font-weight:800}.hero h1,.page-title h1{letter-spacing:0;max-width:900px;margin:0;font-size:clamp(2.2rem,5vw,4.5rem);line-height:1.04}.hero p,.page-title p{max-width:760px;color:var(--muted);margin:1.2rem 0 0;font-size:1.08rem}.hero-actions,.action-row{flex-wrap:wrap;gap:.7rem;margin-top:1.5rem;display:flex}.button{border:1px solid var(--accent);color:#fff;background:var(--accent);border-radius:6px;justify-content:center;align-items:center;min-height:2.7rem;padding:.56rem .88rem;font-weight:750;text-decoration:none;display:inline-flex}.button:hover{color:#fff;border-color:var(--warm);background:var(--warm)}.button.secondary{color:var(--accent);background:0 0}.button.secondary:hover{color:var(--ink);border-color:var(--border);background:var(--soft)}.section{border-top:1px solid var(--border);padding:2.6rem 0}.section:first-child{border-top:0}.section h2{margin:0 0 .85rem;font-size:1.72rem;line-height:1.2}.section h3{margin:1.25rem 0 .35rem}.lead{max-width:780px;color:var(--muted);font-size:1.04rem}.grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:1rem;display:grid}.grid.two{grid-template-columns:repeat(2,minmax(0,1fr))}.feature-card,.policy-card,.status-panel,.callout,.tool-card,.summary-card{border:1px solid var(--border);border-radius:var(--radius);background:var(--paper);padding:1.15rem}.feature-card h2,.policy-card h2,.tool-card h2,.summary-card h2{margin:0;font-size:1.05rem}.feature-card p,.policy-card p,.tool-card p,.summary-card p{color:var(--muted);margin-bottom:0}.tool-card{flex-direction:column;display:flex}.tool-card .action-row{margin-top:auto;padding-top:1rem}.status-panel h2{margin-top:0;font-size:1rem}.status-list{gap:.8rem;margin:0;padding:0;list-style:none;display:grid}.status-list li{border-top:1px solid var(--border);padding-top:.8rem}.status-list li:first-child{border-top:0;padding-top:0}.status-tag{color:var(--accent-dark);background:#e3f1ed;border:1px solid #b7d7d0;border-radius:999px;margin-bottom:.25rem;padding:.12rem .48rem;font-size:.75rem;font-weight:800;display:inline-flex}.status-tag.blue{color:var(--blue);background:#e9eff7;border-color:#c5d4e7}.callout{border-left:4px solid var(--accent)}.callout p{margin:0}.section-map{grid-template-columns:repeat(3,minmax(0,1fr));gap:1rem;display:grid}.section-map a{border:1px solid var(--border);border-radius:var(--radius);min-height:100%;color:var(--ink);background:var(--paper);padding:1rem;text-decoration:none;display:block}.section-map a:hover{border-color:var(--accent)}.section-map strong{margin-bottom:.25rem;display:block}.section-map span{color:var(--muted);font-size:.92rem}.guide-shell{grid-template-columns:250px minmax(0,1fr);align-items:start;gap:2rem;display:grid}.guide-sidebar{border:1px solid var(--border);border-radius:var(--radius);background:var(--paper);max-height:calc(100vh - 112px);padding:.85rem;position:sticky;top:88px;overflow:auto}.guide-sidebar strong{margin-bottom:.5rem;font-size:.85rem;display:block}.guide-sidebar a{color:var(--muted);border-radius:4px;padding:.35rem .45rem;font-size:.84rem;line-height:1.35;text-decoration:none;display:block}.guide-sidebar a:hover{color:var(--ink);background:var(--soft)}.guide-content{min-width:0}.guide-doc .L.ja,html[data-language=ja] .guide-doc .L.en{display:none}html[data-language=ja] .guide-doc .L.ja{display:block}.guide-doc .part{border-top:1px solid var(--border);padding:2.5rem 0}.guide-doc{overflow-wrap:anywhere}.guide-doc .part:first-child{border-top:0}.guide-doc h1{margin:0 0 1.2rem;font-size:2rem;line-height:1.2}.guide-doc h2{margin:2rem 0 .7rem;font-size:1.35rem;line-height:1.25}.guide-doc h3{margin:1.4rem 0 .5rem;font-size:1.05rem}.guide-doc p,.guide-doc li{min-width:0;max-width:82ch}.guide-doc table{border-collapse:collapse;contain:inline-size;width:100%;max-width:100%;display:block;overflow-x:auto}.guide-doc th,.guide-doc td{border:1px solid var(--border);text-align:left;vertical-align:top;padding:.65rem}.guide-doc th{background:var(--soft)}.guide-doc pre{border-radius:var(--radius);color:#f5f7f5;background:#17201b;padding:1rem;overflow-x:auto}.guide-doc code{border:1px solid var(--border);background:var(--soft);border-radius:4px;padding:.1rem .25rem}.guide-doc :not(pre)>code{overflow-wrap:anywhere;word-break:break-word;white-space:normal}.guide-doc pre code{color:inherit;background:0 0;border:0;padding:0}.guide-doc svg{max-width:100%;height:auto}.site-footer{border-top:1px solid var(--border);background:var(--paper)}.site-footer__inner{color:var(--muted);grid-template-columns:1fr auto;gap:2rem;padding:1.5rem 0;font-size:.9rem;display:grid}.site-footer p{margin:.25rem 0 0}@media (width<=940px){.site-header__inner{flex-wrap:wrap;padding:.75rem 0}.site-nav{order:3;width:100%;margin-left:0;overflow-x:auto}.language-switch{margin-left:auto}.guide-shell{grid-template-columns:1fr}.guide-sidebar{grid-template-columns:repeat(2,minmax(0,1fr));max-height:none;display:grid;position:static}.guide-sidebar strong{grid-column:1/-1}}@media (width<=760px){.hero,.grid,.grid.two,.section-map,.site-footer__inner{grid-template-columns:1fr}.hero h1,.page-title h1{font-size:2.35rem}.site-main{padding-top:2.2rem}}@media (width<=520px){.site-header__inner,.site-main,.site-footer__inner{width:min(100% - 20px,var(--max))}.site-nav a{padding:.35rem .42rem}.guide-sidebar{grid-template-columns:1fr}}