:root{
  --bg:#f7f5ef;--paper:#fff;--ink:#222622;--muted:#68706a;--line:#ddd8cc;--accent:#536a61;
  --max:980px;
}
*{box-sizing:border-box}
html{font-size:16px}
body{margin:0;background:var(--bg);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Noto Sans JP",sans-serif;line-height:1.8}
a{color:inherit;text-underline-offset:.18em}
.wrap{width:min(calc(100% - 40px),var(--max));margin:auto}
.narrow{max-width:760px}
.site-header{border-bottom:1px solid var(--line);background:rgba(247,245,239,.96)}
.header-inner{min-height:68px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.brand{font-weight:700;text-decoration:none;letter-spacing:.03em}
nav{display:flex;gap:20px;font-size:.84rem}
nav a{text-decoration:none;color:var(--muted)}
.hero{padding:76px 0 70px}
.eyebrow{margin:0 0 14px;color:var(--accent);font-size:.78rem;font-weight:700;letter-spacing:.08em}
h1{max-width:720px;margin:0;font-size:clamp(2.2rem,6vw,4rem);line-height:1.28;font-weight:650;letter-spacing:.01em}
.lead{max-width:720px;margin:28px 0 0;color:var(--muted);font-size:1.02rem}
.section{padding:58px 0;border-top:1px solid var(--line)}
.section h2{margin:0 0 26px;font-size:1.7rem}
.site-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0;border-top:1px solid var(--line)}
.site-list article{padding:24px 0;border-bottom:1px solid var(--line)}
.site-list article:nth-child(odd){padding-right:28px}
.site-list article:nth-child(even){padding-left:28px;border-left:1px solid var(--line)}
.site-list h3{margin:0 0 7px;font-size:1.16rem}
.site-list p{margin:0;color:var(--muted);font-size:.93rem}
.section-muted{background:#f1eee6}
.section-muted p{color:#505750}
footer{padding:30px 0 44px;border-top:1px solid var(--line);font-size:.82rem;color:var(--muted)}
.footer-inner{display:flex;justify-content:space-between;gap:20px}
.footer-inner div{display:flex;gap:18px}
@media(max-width:680px){
  .wrap{width:min(calc(100% - 28px),var(--max))}
  .header-inner{min-height:60px}
  nav a:first-child,nav a:nth-child(2){display:none}
  nav{gap:14px;font-size:.76rem}
  .hero{padding:54px 0 50px}
  h1{font-size:2.25rem}
  .lead{margin-top:20px;font-size:.95rem}
  .section{padding:44px 0}
  .site-list{grid-template-columns:1fr}
  .site-list article,.site-list article:nth-child(odd),.site-list article:nth-child(even){padding:20px 0;border-left:0}
  .footer-inner{display:block}
  .footer-inner div{margin-top:8px}
}