:root{
  --bg:#fbfaf7; --ink:#1d2430; --muted:#5b6573; --accent:#e4572e; --accent2:#2a6f97;
  --card:#ffffff; --line:#e7e3da;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,"Noto Sans JP",sans-serif;color:var(--ink);background:var(--bg);line-height:1.7}
a{color:var(--accent2);text-decoration:none}
a:hover{text-decoration:underline}
img{max-width:100%;height:auto}
.container{max-width:880px;margin:0 auto;padding:0 20px}
header.site{position:sticky;top:0;background:rgba(251,250,247,.92);backdrop-filter:blur(6px);border-bottom:1px solid var(--line);z-index:10}
.nav{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:14px 20px;max-width:1040px;margin:0 auto}
.brand{font-weight:800;font-size:1.25rem;letter-spacing:.5px;color:var(--ink)}
.brand span{color:var(--accent)}
.nav ul{display:flex;gap:18px;list-style:none;margin:0;padding:0;flex-wrap:wrap}
.nav a{color:var(--ink);font-size:.95rem}
.hero{padding:56px 0 24px;text-align:center}
.hero h1{font-size:2.1rem;margin:0 0 12px;line-height:1.25}
.hero p{font-size:1.1rem;color:var(--muted);max-width:640px;margin:0 auto}
.tag{display:inline-block;background:#fff;border:1px solid var(--line);color:var(--accent);font-size:.8rem;font-weight:600;padding:4px 12px;border-radius:999px;margin-bottom:16px}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:18px;margin:28px 0}
.card{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:20px;transition:transform .15s,box-shadow .15s}
.card:hover{transform:translateY(-3px);box-shadow:0 8px 24px rgba(0,0,0,.06)}
.card h3{margin:.2rem 0 .5rem;font-size:1.08rem}
.card h3 a{color:var(--ink)}
.card p{margin:0;color:var(--muted);font-size:.92rem}
.card .more{display:inline-block;margin-top:12px;font-weight:600;font-size:.9rem}
article.post{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:32px;margin:28px 0}
article.post h1{font-size:1.9rem;margin-top:0;line-height:1.3}
article.post h2{font-size:1.3rem;margin-top:1.8rem}
article.post ul{padding-left:1.2rem}
.meta{color:var(--muted);font-size:.85rem;margin-bottom:1.2rem}
.breadcrumb{font-size:.85rem;color:var(--muted);margin:18px 0 0}
.disclosure{font-size:.82rem;color:var(--muted);background:#fff;border:1px dashed var(--line);border-radius:8px;padding:10px 14px;margin:18px 0}
.notice{background:#fff7f2;border:1px solid #f3d9c9;border-radius:10px;padding:12px 16px;font-size:.9rem;color:#7a4a32;margin:18px 0}
figure.shot{margin:0 0 22px}
figure.shot img{width:100%;height:auto;display:block;border-radius:12px;border:1px solid var(--line)}
figure.shot figcaption{font-size:.78rem;color:var(--muted);margin-top:6px}
.aff{margin:20px 0}
.aff a{display:inline-block;background:var(--accent);color:#fff;font-weight:700;padding:11px 22px;border-radius:999px;font-size:.95rem}
.aff a:hover{filter:brightness(1.06);text-decoration:none}
footer.site{border-top:1px solid var(--line);margin-top:48px;padding:28px 0;color:var(--muted);font-size:.88rem}
footer .nav-f{display:flex;gap:18px;flex-wrap:wrap;margin-bottom:10px}
footer a{color:var(--muted)}
@media(max-width:560px){.hero h1{font-size:1.6rem}article.post{padding:22px}}