/* about.css —— 研究グループ紹介 (About the group) */
.about-main { max-width: 1080px; margin: 0 auto; padding: 26px 24px 72px; }

.ab-sec { margin: 34px 0 0; }
.ab-sec:first-child { margin-top: 8px; }
.ab-sec h2 {
  font-size: 1.22rem; margin: 0 0 14px; padding-bottom: 8px;
  border-bottom: 1px solid var(--border);
}

.ab-people { display: grid; grid-template-columns: minmax(240px, 300px) 1fr; gap: 22px; align-items: start; }
.ab-pi {
  border: 1px solid var(--border); border-left: 3px solid var(--accent);
  border-radius: 12px; background: var(--panel); padding: 16px 18px;
}
.ab-pi-name { margin: 0; font-size: 1.1rem; font-weight: 700; }
.ab-pi-role { margin: 6px 0 10px; color: var(--fg); font-size: 0.92rem; line-height: 1.6; }
.ab-pi-note { margin: 0; color: var(--muted); font-size: 0.86rem; line-height: 1.65; }
.ab-group-note .ab-aff { border-left: 2px solid var(--accent); padding-left: 12px; }
.ab-group-note a { color: var(--accent); text-decoration: none; }
.ab-group-note a:hover { text-decoration: underline; }
.ab-group-note p { margin: 0 0 12px; color: var(--muted); font-size: 0.95rem; line-height: 1.75; }
.ab-group-note p:last-child { margin-bottom: 0; }

.ab-list { margin: 0; padding-left: 1.25em; }
.ab-list li { margin: 10px 0; color: var(--muted); font-size: 0.95rem; line-height: 1.75; }
.ab-list li b { color: var(--fg); }

.ab-links { margin: 0; padding-left: 1.25em; list-style: none; }
.ab-links li { margin: 12px 0; color: var(--muted); font-size: 0.95rem; line-height: 1.75; text-indent: -1.25em; }
.ab-links a { color: var(--accent); text-decoration: none; }
.ab-links a:hover { text-decoration: underline; }

.ab-p { margin: 0 0 12px; color: var(--muted); font-size: 0.95rem; line-height: 1.75; }
.ab-p a { color: var(--accent); text-decoration: none; }
.ab-p a:hover { text-decoration: underline; }
.ab-note {
  margin: 14px 0 0; color: var(--muted); font-size: 0.86rem; line-height: 1.7;
  border-left: 2px solid var(--border); padding-left: 12px;
}

.about-main .cards { margin-top: 4px; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); }
.about-main .card p { line-height: 1.72; }

@media (max-width: 720px) {
  .ab-people { grid-template-columns: 1fr; }
}