:root{
  --bg:#FFFFFF; --ink:#16202E; --muted:#5A6678; --faint:#8A94A6; --line:#E4E8EF; --soft:#F5F7FA; --accent:#16202E;
}
*{margin:0;padding:0;box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{background:var(--bg);color:var(--ink);font-family:"Noto Sans JP","Hiragino Sans","Hiragino Kaku Gothic ProN",sans-serif;line-height:1.85;font-size:16px}
a{color:inherit}
.wrap{max-width:880px;margin:0 auto;padding:0 20px}
header.site{border-bottom:1px solid var(--line)}
header.site .wrap{display:flex;align-items:center;justify-content:space-between;height:68px}
header.site img{height:22px;display:block}
header.site nav a{font-size:13px;color:var(--muted);text-decoration:none;margin-left:20px}
header.site nav a:hover{color:var(--ink)}
.hero{padding:88px 0 64px}
.eyebrow{font-size:12px;letter-spacing:.16em;color:var(--faint);font-weight:600}
h1{font-size:clamp(28px,5vw,40px);line-height:1.4;font-weight:700;margin:14px 0 18px;letter-spacing:.01em}
.lead{color:var(--muted);max-width:640px}
section{padding:56px 0;border-top:1px solid var(--line)}
h2{font-size:22px;font-weight:700;margin-bottom:24px}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:16px}
.card{background:var(--soft);border-radius:14px;padding:24px}
.card h3{font-size:16px;margin-bottom:8px}
.card p{font-size:14px;color:var(--muted)}
.plan{border:1px solid var(--ink);border-radius:16px;padding:32px}
.plan .name{font-size:13px;letter-spacing:.12em;color:var(--faint);font-weight:600}
.plan .title{font-size:22px;font-weight:700;margin:6px 0 4px}
.plan .price{font-size:28px;font-weight:700;margin:12px 0 4px}
.plan .price small{font-size:14px;font-weight:500;color:var(--muted)}
.plan ul{margin:18px 0 0 1.2em;font-size:15px}
.plan li{margin:4px 0}
.note{font-size:13px;color:var(--faint);margin-top:14px}
table.spec{width:100%;border-collapse:collapse;font-size:15px}
table.spec th,table.spec td{border-bottom:1px solid var(--line);padding:16px 8px;text-align:left;vertical-align:top}
table.spec th{width:30%;font-weight:600;color:var(--ink);white-space:nowrap}
table.spec td{color:#2B3544}
.doc h1{font-size:28px;margin:56px 0 32px}
.doc h2{font-size:18px;margin:36px 0 10px}
.doc p,.doc li{font-size:15px;color:#2B3544}
.doc ol,.doc ul{margin-left:1.4em}
.btn{display:inline-block;background:var(--ink);color:#fff;text-decoration:none;padding:12px 22px;border-radius:999px;font-size:14px;font-weight:600;margin-top:20px}
footer.site{border-top:1px solid var(--line);margin-top:56px;padding:32px 0 48px;font-size:13px;color:var(--faint)}
footer.site a{margin-right:18px;text-decoration:none}
footer.site a:hover{color:var(--ink)}
@media (max-width:600px){
  .hero{padding:56px 0 40px}
  table.spec th,table.spec td{display:block;width:100%;padding:6px 0}
  table.spec th{padding-top:16px;border-bottom:none}
  table.spec td{padding-bottom:16px}
  header.site nav a{margin-left:14px}
}