:root {
  --bg: #fafaf7;
  --surface: #ffffff;
  --text: #1f2328;
  --muted: #5f6670;
  --line: #e4e4de;
  --accent: #1d5c4a;
  --accent-soft: #e8f1ed;
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Noto Sans JP", "Yu Gothic", Meiryo, sans-serif;
  font-size: 15px;
  line-height: 1.85;
  letter-spacing: 0.02em;
}
a { color: var(--accent); }
header.site {
  border-bottom: 1px solid var(--line);
  background: var(--surface);
}
header.site .inner, main, footer.site .inner {
  max-width: 760px;
  margin: 0 auto;
  padding: 0 16px;
}
header.site .inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  height: 56px;
}
header.site .brand {
  font-weight: 700;
  color: var(--text);
  text-decoration: none;
  font-size: 15px;
}
header.site nav a {
  font-size: 13px;
  color: var(--muted);
  text-decoration: none;
  margin-left: 14px;
}
header.site nav a:hover { color: var(--accent); }
main { padding-top: 40px; padding-bottom: 64px; }
h1 {
  font-size: 24px;
  line-height: 1.4;
  margin: 0 0 8px;
}
.lead { color: var(--muted); margin: 0 0 32px; font-size: 14px; }
h2 {
  font-size: 17px;
  margin: 36px 0 10px;
  padding-left: 10px;
  border-left: 3px solid var(--accent);
  line-height: 1.5;
}
p { margin: 0 0 12px; }
ol, ul { margin: 0 0 12px; padding-left: 1.5em; }
li { margin-bottom: 6px; }
table.spec {
  width: 100%;
  border-collapse: collapse;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow: hidden;
}
table.spec th, table.spec td {
  text-align: left;
  vertical-align: top;
  padding: 14px 16px;
  border-bottom: 1px solid var(--line);
}
table.spec tr:last-child th, table.spec tr:last-child td { border-bottom: none; }
table.spec th {
  width: 32%;
  background: #f3f3ee;
  font-weight: 600;
  font-size: 14px;
}
.cards { display: grid; gap: 12px; }
.card {
  display: block;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 18px 20px;
  text-decoration: none;
  color: var(--text);
}
.card:hover { border-color: var(--accent); }
.card strong { display: block; font-size: 16px; margin-bottom: 2px; }
.card span { color: var(--muted); font-size: 13px; }
.note {
  background: var(--accent-soft);
  border-radius: 8px;
  padding: 14px 16px;
  font-size: 14px;
}
.meta { color: var(--muted); font-size: 13px; margin-top: 40px; }
footer.site {
  border-top: 1px solid var(--line);
  background: var(--surface);
  color: var(--muted);
  font-size: 12px;
}
footer.site .inner { padding-top: 20px; padding-bottom: 24px; }
footer.site a { color: var(--muted); margin-right: 14px; }
@media (max-width: 560px) {
  h1 { font-size: 21px; }
  main { padding-top: 28px; }
  table.spec th, table.spec td { display: block; width: 100%; }
  table.spec th { border-bottom: none; padding-bottom: 4px; }
  table.spec td { padding-top: 4px; }
  header.site nav a { margin-left: 10px; }
}