:root{--ink:#1f2430;--muted:#6b7280;--line:#e5e7eb;--bg:#fbfaf7;--accent:#b4541a;--card:#fff}
*{box-sizing:border-box}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Hiragino Sans","Noto Sans JP",sans-serif;color:var(--ink);background:var(--bg);line-height:1.7}
a{color:var(--accent)}header,main,footer{max-width:960px;margin:0 auto;padding:0 20px}
header{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;padding-top:20px;padding-bottom:16px;border-bottom:1px solid var(--line)}
.logo{font-weight:700;font-size:20px;text-decoration:none;color:var(--ink)}nav a{margin-left:16px;text-decoration:none;font-size:15px}nav a:first-child{margin-left:0}
h1{font-size:30px;line-height:1.3;margin:36px 0 8px}h2{font-size:20px;margin:32px 0 8px}.lead{color:var(--muted);max-width:640px}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:16px;margin:20px 0}
.card{background:var(--card);border:1px solid var(--line);border-radius:10px;padding:16px}.card h3{margin:8px 0 4px;font-size:16px}.price{font-weight:700}
.swatch{height:120px;border-radius:8px;background:linear-gradient(135deg,#f6d9a8,#e9a66b)}.swatch.b{background:linear-gradient(135deg,#cfe3f1,#8fb6d6)}.swatch.c{background:linear-gradient(135deg,#e6dcf2,#b59ad6)}.swatch.d{background:linear-gradient(135deg,#dcefdc,#93c59a)}
.btn{display:inline-block;background:var(--accent);color:#fff;text-decoration:none;padding:9px 16px;border-radius:8px;font-size:15px;border:0}
table{border-collapse:collapse;width:100%;background:var(--card);margin:12px 0}th,td{border:1px solid var(--line);padding:10px 12px;text-align:left;vertical-align:top;font-size:15px}th{width:32%;background:#f6f4ee;font-weight:600}
footer{margin-top:56px;padding-top:20px;padding-bottom:40px;border-top:1px solid var(--line);color:var(--muted);font-size:14px}footer a{margin-right:14px}.note{font-size:13px;margin-top:10px}