:root{
  --fg:#0c0c0c;
  --bg:#ffffff;
  --muted:#6b7280;
  --brand:#2563eb;
  --container:1100px;
  --gap:20px;
}
html,body{
  color:var(--fg);
  background:var(--bg);
  font-family:-apple-system, BlinkMacSystemFont,"Segoe UI",Roboto,"Noto Sans JP",sans-serif;
  line-height:1.8;
  font-size:16px;
}
.container{max-width:var(--container);margin-inline:auto;padding:0 16px;}
.site-header{border-bottom:1px solid #eee;}
.header-inner,.footer-inner{display:flex;align-items:center;justify-content:space-between;gap:var(--gap);padding:14px 0;}
.site-logo{font-weight:700;font-size:20px;}
.nav-list,.footer-list{display:flex;gap:16px;}
.site-main{padding-bottom:60px;}
.site-footer{border-top:1px solid #eee;margin-top:60px;}
.copy{color:var(--muted);font-size:13px;}
.hero{padding:40px 0 20px;}
.hero .container{display:grid;gap:var(--gap);grid-template-columns:1.2fr 1fr;align-items:center;}
.hero-media img{width:100%;border-radius:12px;}
.hero-copy .catch{font-size:clamp(28px,4vw,44px);font-weight:800;line-height:1.2;}
.hero-copy .lead{margin-top:10px;color:var(--muted);}
.btn{display:inline-block;padding:12px 20px;border-radius:999px;border:1px solid #ddd;}
.btn.primary{background:var(--brand);color:white;border-color:var(--brand);}
.hero-copy .btn{margin-top:18px;}
.features{display:grid;gap:var(--gap);grid-template-columns:repeat(auto-fit,minmax(240px,1fr));padding:40px 0;}
.feature{padding:18px;border:1px solid #eee;border-radius:12px;background:#fff;}
.feature h2{font-size:18px;margin-bottom:8px;}
.cta{text-align:center;padding:20px 0 0;}
.content .entry{padding:24px 0;border-bottom:1px solid #eee;}
.entry-title{font-size:22px;margin-bottom:8px;}
@media(max-width:900px){.hero .container{grid-template-columns:1fr;}}