* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: #fff;
  color: #111;
  font-family: Arial, "Helvetica Neue", "Noto Sans JP", "Yu Gothic", "Hiragino Kaku Gothic ProN", sans-serif;
  font-size: 16px;
  line-height: 1.7;
}
a { color: #0645ad; text-decoration: none; }
a:hover { text-decoration: underline; }
.wrap { max-width: 820px; margin: 0 auto; padding: 42px 24px 64px; }
header { margin-bottom: 34px; }
.topline { display: flex; justify-content: space-between; gap: 24px; align-items: flex-start; }
h1 { margin: 0; font-size: 2rem; font-weight: 600; }
.subtitle { margin: 2px 0 12px; color: #555; }
.lang { margin: 4px 0 0; white-space: nowrap; }
nav { margin-top: 20px; padding-top: 12px; border-top: 1px solid #bbb; border-bottom: 1px solid #bbb; padding-bottom: 12px; }
nav a { margin-right: 18px; }
section { margin: 0 0 34px; }
h2 { font-size: 1.2rem; font-weight: 600; margin: 0 0 12px; padding-bottom: 4px; border-bottom: 1px solid #ccc; }
p { margin: 0 0 10px; }
ul { margin: 8px 0 0 1.25rem; padding: 0; }
li { margin: 3px 0; }
.meta { display: grid; grid-template-columns: 110px 1fr; gap: 4px 16px; margin: 0; }
.meta dt { font-weight: 600; }
.meta dd { margin: 0; }
.timeline { list-style: none; margin-left: 0; }
.timeline li { display: grid; grid-template-columns: 145px 1fr; gap: 14px; margin: 4px 0; }
.external-links { list-style: none; margin-left: 0; }
.external-links li { margin: 5px 0; }
footer { border-top: 1px solid #ccc; margin-top: 44px; padding-top: 14px; color: #666; font-size: 0.9rem; }
@media (max-width: 640px) {
  .wrap { padding: 28px 18px 48px; }
  .topline { display: block; }
  .lang { margin-top: 14px; }
  nav a { display: inline-block; margin-bottom: 5px; }
  .meta { grid-template-columns: 1fr; }
  .meta dt { margin-top: 8px; }
  .timeline li { grid-template-columns: 1fr; gap: 0; margin-bottom: 10px; }
}


.lead {
  margin-bottom: 12px;
  color: #333;
}
.prospective-box {
  padding: 18px 20px;
  border: 1px solid #d6d6d6;
  background: #fafafa;
}
.prospective-box h2 {
  margin-top: 0;
}