:root {
  --text: #202322;
  --muted: #6c7270;
  --line: #dedfdd;
  --link: #315f59;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: #fff;
  color: var(--text);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 15px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--link); text-underline-offset: 3px; }
a:hover { text-decoration: underline; }
.container { width: min(820px, calc(100% - 40px)); margin: 0 auto; }
header { min-height: 70px; display: flex; align-items: center; justify-content: space-between; gap: 30px; border-bottom: 1px solid var(--line); }
.home-link { color: var(--text); font-weight: 600; text-decoration: none; }
header nav { display: flex; gap: 24px; font-size: 13px; }
header nav a { color: var(--muted); text-decoration: none; }
.profile { padding: 88px 0 72px; }
.profile h1, .page-title h1 { margin: 0; font-family: Georgia, 'Times New Roman', serif; font-size: clamp(42px, 7vw, 64px); line-height: 1; font-weight: 400; letter-spacing: -.035em; }
.name-ja { margin: 16px 0 32px; color: var(--muted); }
.affiliation { margin-bottom: 22px; }
.affiliation p { margin: 0; }
section { padding: 58px 0; border-top: 1px solid var(--line); }
h2 { margin: 0 0 30px; font-size: 18px; line-height: 1.3; }
h3 { margin: 32px 0 12px; font-size: 14px; }
p { margin: 0 0 12px; }
ul { margin: 0; padding-left: 21px; }
li { margin: 5px 0; }
.rows { border-top: 1px solid var(--line); }
.row { display: grid; grid-template-columns: 130px 1fr; gap: 24px; padding: 17px 0; border-bottom: 1px solid var(--line); }
.row > span { color: var(--muted); font-size: 13px; }
.row p { margin: 0; }
.row small { display: block; margin-top: 2px; color: var(--muted); font-size: 13px; line-height: 1.5; }
.compact .row { padding: 13px 0; }
.research-groups { border-top: 1px solid var(--line); }
.research-group { display: grid; grid-template-columns: 210px 1fr; gap: 24px; padding: 20px 0; border-bottom: 1px solid var(--line); }
.research-group h3 { margin: 0; font-size: 15px; }
.research-group ul { margin: 0; padding: 0; list-style: none; color: var(--muted); }
.research-group li { margin: 0 0 5px; }
.research-group li:last-child { margin-bottom: 0; }
.links { display: grid; grid-template-columns: 1fr 1fr; column-gap: 30px; padding-left: 0; list-style: none; }
.links li { padding: 7px 0; }
footer { padding: 34px 0 50px; border-top: 1px solid var(--line); color: var(--muted); font-size: 12px; }
.page-title { padding: 82px 0 58px; }
.page-title p { margin-top: 18px; }
.publication-groups { border-top: 1px solid var(--line); }
.publication-groups details { border-bottom: 1px solid var(--line); }
.publication-groups summary { padding: 20px 0; cursor: pointer; font-weight: 600; }
.publication-groups iframe, .awards-frame { display: block; width: 100%; border: 0; background: #fff; }
.publication-groups iframe { margin: 5px 0 30px; }
@media (max-width: 600px) {
  header nav { gap: 14px; }
  header nav a:nth-child(2), header nav a:nth-child(4) { display: none; }
  .profile { padding: 64px 0 54px; }
  section { padding: 46px 0; }
  .row { grid-template-columns: 1fr; gap: 3px; }
  .research-group { grid-template-columns: 1fr; gap: 8px; }
  .links { grid-template-columns: 1fr; }
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }