:root{
  --ink:#24201c; --sub:#6a625a; --line:#e7e0d6;
  --bg:#faf7f2; --card:#fffdf9; --accent:#1f7a43; --accent-soft:#dcefe2;
  --head-a:#16301f; --head-b:#1f4a2d;
  color-scheme: light dark;
}
@media (prefers-color-scheme: dark){
  :root{ --ink:#efe9e2; --sub:#b3aaa0; --line:#3a3530;
         --bg:#171513; --card:#211e1b; --accent:#62cf8c; --accent-soft:#1f3a29; }
}
*{box-sizing:border-box}
body{
  margin:0; background:var(--bg); color:var(--ink);
  font-family:-apple-system,BlinkMacSystemFont,"Hiragino Sans","Noto Sans JP",
    "Segoe UI",system-ui,sans-serif;
  line-height:1.85; -webkit-text-size-adjust:100%;
}
.wrap{max-width:760px;margin:0 auto;padding:0 16px 64px}
header.site{
  background:linear-gradient(160deg,var(--head-a) 0%,var(--head-b) 100%);
  color:#fff; padding:30px 0 26px; margin-bottom:30px;
}
header.site .wrap{padding-bottom:0}
.brand{display:flex;align-items:center;gap:14px}
.brand .mark{width:52px;height:52px;border-radius:12px;flex:none;display:block}
.brand h1{font-size:1.22rem;margin:0;line-height:1.4}
.brand p{margin:2px 0 0;color:#f0d9d9;font-size:.85rem}
nav.site{margin-top:20px;display:flex;gap:8px;flex-wrap:wrap}
nav.site a{
  color:#fff;text-decoration:none;font-size:.86rem;
  padding:6px 14px;border-radius:999px;border:1px solid rgba(255,255,255,.35);
}
nav.site a[aria-current]{background:#fff;color:var(--head-a);font-weight:700;border-color:#fff}
h2{
  font-size:1.05rem;margin:2.2rem 0 .7rem;padding-left:.65rem;
  border-left:4px solid var(--accent);line-height:1.5;
}
p{margin:.7rem 0}
.lead{font-size:1rem;background:var(--card);border:1px solid var(--line);border-radius:12px;padding:12px 16px}
ul{padding-left:1.2rem;margin:.6rem 0}
li{margin:.35rem 0}
a{color:var(--accent)}
.faq dt{font-weight:700;margin-top:1.2rem}
.faq dd{margin:.3rem 0 0;color:var(--sub)}
.mail{
  display:inline-block;margin:.3rem 0 .6rem;padding:10px 16px;border-radius:10px;
  background:var(--accent);color:#fff;font-weight:700;text-decoration:none;word-break:break-all;
}
footer{margin-top:2.6rem;padding-top:1rem;border-top:1px solid var(--line);color:var(--sub);font-size:.85rem}
footer a{margin-right:.6rem}