/* 📖 読み物ページ共通のスタイル。
   presskit.html と同じ配色・字組みにそろえて、同じサイトに見えるようにする。 */
:root {
  --primary: #4A90D9;
  --bg: #fafafa;
  --card: #ffffff;
  --text: #2c3e50;
  --muted: #6b7280;
  --border: #e5e7eb;
  --accent: #E8663C;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.8;
  -webkit-text-size-adjust: 100%;
}
header {
  background: linear-gradient(135deg, #4A90D9, #357ABD);
  color: #fff;
  padding: 48px 20px 40px;
  text-align: center;
}
header .kicker {
  font-size: 0.8em; letter-spacing: 0.12em; text-transform: uppercase;
  opacity: 0.85;
}
header h1 { font-size: 2em; margin: 10px auto 0; max-width: 760px; line-height: 1.35; }
header .meta { margin-top: 12px; font-size: 0.9em; opacity: 0.9; }
header a { color: #fff; }
.container { max-width: 720px; margin: 0 auto; padding: 40px 20px 60px; }
article h2 {
  font-size: 1.35em; color: var(--primary); margin: 40px 0 14px;
  border-bottom: 2px solid var(--primary); padding-bottom: 8px;
}
article h3 { font-size: 1.1em; margin: 28px 0 8px; }
article p { margin: 14px 0; }
article ul, article ol { margin: 14px 0 14px 22px; }
article li { margin: 8px 0; }
article strong { color: var(--text); }
.lead { font-size: 1.1em; color: var(--muted); }
.note {
  background: var(--card); border: 1px solid var(--border);
  border-left: 4px solid var(--primary);
  border-radius: 8px; padding: 16px 18px; margin: 24px 0;
  font-size: 0.95em;
}
.steps { counter-reset: step; list-style: none; margin-left: 0; }
.steps li {
  counter-increment: step; position: relative;
  padding-left: 44px; margin: 18px 0;
}
.steps li::before {
  content: counter(step);
  position: absolute; left: 0; top: 2px;
  width: 30px; height: 30px; border-radius: 50%;
  background: var(--primary); color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-weight: 700; font-size: 0.95em;
}
.cta-card {
  background: var(--card); border: 1px solid var(--border);
  border-radius: 12px; padding: 24px; margin: 40px 0 24px;
  text-align: center;
  box-shadow: 0 2px 14px rgba(0,0,0,0.05);
}
.cta-card h3 { margin: 0 0 8px; }
.cta-card p { color: var(--muted); margin: 6px 0 16px; font-size: 0.95em; }
.btn {
  display: inline-block; margin: 6px 6px 0;
  padding: 12px 22px; border-radius: 999px;
  background: var(--primary); color: #fff; text-decoration: none;
  font-weight: 700;
}
.btn.secondary { background: #fff; color: var(--primary); border: 2px solid var(--primary); }
.refs { margin-top: 44px; font-size: 0.85em; color: var(--muted); }
.refs h2 { font-size: 1.05em; }
.refs ol { margin-left: 20px; }
.refs a { color: var(--primary); }
.more { margin-top: 44px; }
.more h2 { font-size: 1.15em; }
.more ul { list-style: none; margin-left: 0; }
.more li { margin: 10px 0; }
.more a { color: var(--primary); text-decoration: none; font-weight: 600; }
.more a:hover { text-decoration: underline; }
footer {
  border-top: 1px solid var(--border); margin-top: 48px;
  padding: 24px 20px 40px; text-align: center;
  color: var(--muted); font-size: 0.85em;
}
footer a { color: var(--primary); }
.disclaimer { font-size: 0.8em; color: var(--muted); margin-top: 18px; }
.card-grid { display: grid; gap: 16px; }
.card {
  background: var(--card); border: 1px solid var(--border);
  border-radius: 12px; padding: 20px; text-decoration: none; color: inherit;
  display: block;
}
.card:hover { border-color: var(--primary); }
.card h3 { margin: 0 0 6px; color: var(--primary); font-size: 1.1em; }
.card p { margin: 0; color: var(--muted); font-size: 0.95em; }
@media (max-width: 480px) {
  header h1 { font-size: 1.55em; }
  .container { padding: 28px 16px 48px; }
}