/* わたしのQR 記事ページ共通スタイル — シック・白黒・直線 */
:root {
  --black: #111;
  --grey: #666;
  --border: #e2e2e2;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
body {
  font-family: "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Noto Sans JP", sans-serif;
  color: var(--black);
  background: #fff;
  line-height: 1.9;
  font-size: 16px;
}
header {
  border-bottom: 1px solid var(--border);
  padding: 18px 24px;
}
header a {
  color: var(--black);
  text-decoration: none;
  font-weight: 700;
  letter-spacing: 2px;
  font-size: 14px;
}
main {
  max-width: 720px;
  margin: 0 auto;
  padding: 48px 24px 80px;
}
h1 {
  font-size: 26px;
  line-height: 1.5;
  letter-spacing: 1px;
  margin-bottom: 8px;
}
.date { color: var(--grey); font-size: 13px; margin-bottom: 40px; display: block; }
h2 {
  font-size: 20px;
  margin: 48px 0 16px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--black);
  letter-spacing: 1px;
}
h3 { font-size: 16px; margin: 28px 0 8px; }
p { margin-bottom: 16px; }
ul, ol { margin: 0 0 16px 24px; }
li { margin-bottom: 6px; }
.cta {
  display: block;
  text-align: center;
  background: var(--black);
  color: #fff;
  text-decoration: none;
  padding: 16px;
  letter-spacing: 2px;
  font-size: 14px;
  margin: 40px 0;
}
.cta:hover { opacity: 0.85; }
.note { color: var(--grey); font-size: 13px; }
table { border-collapse: collapse; width: 100%; margin-bottom: 16px; font-size: 14px; }
th, td { border: 1px solid var(--border); padding: 10px 12px; text-align: left; }
th { background: #fafafa; font-weight: 600; }
.gallery {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin: 24px 0 8px;
}
.gallery figure { margin: 0; }
.gallery img {
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
  display: block;
  border: 1px solid var(--border);
}
.gallery figcaption {
  font-size: 12px;
  color: var(--grey);
  margin-top: 6px;
  letter-spacing: 1px;
}
@media (max-width: 480px) {
  .gallery { grid-template-columns: repeat(2, 1fr); }
  .gallery figure:nth-child(3) { display: none; }
}
.related { border: 1px solid var(--border); padding: 20px 24px; margin-top: 56px; }
.related h2 { border: none; margin: 0 0 12px; font-size: 15px; }
.related a { color: var(--black); }
footer {
  border-top: 1px solid var(--border);
  padding: 24px;
  text-align: center;
  font-size: 12px;
  color: var(--grey);
}
footer a { color: var(--grey); }