/* zoukosan.com の共通の見た目（3D 2048 の content.css と同じ組み方）。色はアプリのアイコンから取った */
:root {
  --yellow: #fdd869;
  --yellow-soft: #fff6d6;
  --blue: #99b8d8;
  --navy: #263850;
  --text: #2c3440;
  --muted: #5d6878;
  --line: #e8dcae;
  --bg: #fffdf5;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  font-family: "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Noto Sans JP", "Yu Gothic", Meiryo, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.85;
  padding: 0 16px 80px;
  -webkit-font-smoothing: antialiased;
}
.site-header {
  max-width: 760px;
  margin: 0 auto;
  padding: 20px 0 12px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  border-bottom: 1px solid var(--line);
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--navy);
  text-decoration: none;
}
.brand img { border-radius: 9px; }
.site-nav { display: flex; flex-wrap: wrap; gap: 8px; font-size: 0.95rem; }
.site-nav a {
  color: var(--navy);
  text-decoration: none;
  padding: 6px 12px;
  border-radius: 8px;
}
.site-nav a:hover { background: var(--yellow-soft); }
.site-nav a[aria-current="page"] { background: var(--yellow); font-weight: 700; }
main {
  max-width: 760px;
  margin: 0 auto;
  padding: 32px 0;
}
main h1 {
  font-size: 1.9rem;
  font-weight: 800;
  color: var(--navy);
  margin-bottom: 20px;
}
main h2 {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--navy);
  margin: 36px 0 10px;
  border-left: 5px solid var(--yellow);
  padding-left: 12px;
}
main h3 {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--navy);
  margin: 24px 0 6px;
}
main p { margin-bottom: 14px; }
main ul { margin: 8px 0 16px 1.6em; }
main li { margin-bottom: 6px; }
main a { color: #1f5f9e; text-underline-offset: 2px; }
.lede { color: var(--muted); font-size: 1.05rem; }
.contact {
  background: var(--yellow-soft);
  border-left: 5px solid var(--yellow);
  border-radius: 0 10px 10px 0;
  padding: 14px 18px;
  margin: 12px 0 20px;
}
.contact p { margin: 0; }
.site-footer {
  max-width: 760px;
  margin: 48px auto 0;
  padding-top: 20px;
  border-top: 1px solid var(--line);
  font-size: 0.85rem;
  color: var(--muted);
  text-align: center;
}
.site-footer a { color: var(--muted); }