:root{
  --bg:#0b1320;
  --bg2:#111c30;
  --panel:#ffffff;
  --text:#0f172a;
  --muted:#475569;
  --line:#dbe3ee;
  --accent:#0ea5e9;
  --accent2:#22c55e;
  --shadow:0 18px 40px rgba(2, 12, 27, 0.12);
  --radius:22px;
  --max:1180px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:"Yu Gothic UI","Hiragino Sans","Meiryo",system-ui,sans-serif;
  color:var(--text);
  background:linear-gradient(180deg,#f7fbff 0%,#eef5fb 100%);
  line-height:1.7;
}
a{color:inherit;text-decoration:none}
img,video{max-width:100%;display:block}
.container{width:min(calc(100% - 32px),var(--max));margin:0 auto}
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(255,255,255,.9);backdrop-filter:blur(12px);
  border-bottom:1px solid rgba(219,227,238,.9);
}
.site-header__inner{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:12px 0}
.brand{ display:flex; align-items:center; gap:10px; font-weight:800; font-size:1.1rem; letter-spacing:.04em;}
.brand__logo{ width:32px; height:32px; object-fit:cover; border-radius:8px; display:block;}
.nav{display:flex;flex-wrap:wrap;gap:10px 14px;justify-content:flex-end}
.nav a{padding:8px 12px;border-radius:999px;color:#1e293b}
.nav a:hover,.nav a:focus-visible{background:#e8f3fb;outline:none}
.hero{
  position:relative;min-height:74vh;display:grid;place-items:center;overflow:hidden;
  background:#020817;color:#fff;
}
.hero__media,.hero__overlay{position:absolute;inset:0}
.hero__media video{width:100%;height:100%;object-fit:cover;display:none}
.hero__media video.is-active{display:block}
.hero__overlay{background:linear-gradient(180deg,rgba(2,6,23,.35),rgba(2,6,23,.72))}
.hero__content{position:relative;z-index:1;text-align:center;padding:80px 16px}
.hero h1{font-size:clamp(2.2rem,7vw,4.8rem);margin:0 0 16px;letter-spacing:.04em}
.hero p{font-size:clamp(1rem,2.2vw,1.25rem);max-width:820px;margin:0 auto 18px;color:#dbeafe}
.hero__chips{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;margin-top:24px}
.hero__chips span{padding:10px 14px;border:1px solid rgba(255,255,255,.24);border-radius:999px;background:rgba(255,255,255,.08)}
.section{padding:72px 0}
.section--tight{padding:48px 0}
.section-title{display:flex;align-items:end;justify-content:space-between;gap:12px;margin-bottom:28px}
.section-title h2{font-size:clamp(1.6rem,3vw,2.5rem);margin:0}
.section-title p{margin:0;color:var(--muted)}
.grid{display:grid;gap:22px}
.card-grid{grid-template-columns:repeat(auto-fit,minmax(240px,1fr))}
.card{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;
  box-shadow:var(--shadow);transition:transform .2s ease, box-shadow .2s ease;
}
.card:hover{transform:translateY(-4px);box-shadow:0 22px 46px rgba(2,12,27,.16)}
.card__media{aspect-ratio:16/10;position:relative;background:linear-gradient(135deg,#0f172a,#1d4ed8);overflow:hidden}
.card__media img,.card__media video{width:100%;height:100%;object-fit:cover}
.card__badge{position:absolute;left:14px;top:14px;background:rgba(255,255,255,.92);padding:6px 10px;border-radius:999px;font-size:.82rem;font-weight:700}
.card__body{padding:20px}
.card__body h3{margin:0 0 8px;font-size:1.2rem}
.card__body p{margin:0;color:var(--muted)}
.note-list,.member-list,.plain-list{display:grid;gap:12px;padding:0;margin:0;list-style:none}
.note-list li,.plain-list li{background:#fff;border:1px solid var(--line);border-radius:16px;padding:14px 16px;box-shadow:var(--shadow)}
.note-list a{color:#0f172a;font-weight:700}
.page-hero{padding:42px 0 18px}
.page-top{
  display:grid;grid-template-columns:1.2fr .8fr;gap:24px;align-items:center;
  background:#fff;border:1px solid var(--line);border-radius:28px;padding:28px;box-shadow:var(--shadow)
}
.page-top__title h1{font-size:clamp(2rem,4vw,3.2rem);margin:0 0 12px}
.page-top__title p{margin:0;color:var(--muted)}
.page-top__image{aspect-ratio:16/9;border-radius:22px;overflow:hidden;background:linear-gradient(135deg,#dbeafe,#bfdbfe)}
.page-top__image img{width:100%;height:100%;object-fit:cover}
.content-box{background:#fff;border:1px solid var(--line);border-radius:28px;padding:30px;box-shadow:var(--shadow)}
.content-box h2{margin-top:0;font-size:1.6rem}
.content-box h3{margin-top:28px}
.footer{background:#08111f;color:#e2e8f0;padding:56px 0 40px;margin-top:60px}
.footer-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;align-items:start}
.footer h2,.footer h3{margin-top:0;color:#fff}
.footer p,.footer li{color:#cbd5e1}
.map-wrap iframe{width:100%;height:320px;border:0;border-radius:22px}
.small{font-size:.95rem;color:var(--muted)}
.placeholder{font-weight:700;color:#0369a1}
.kv-links{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}
.kv-links a{background:#fff;color:#0f172a;padding:11px 14px;border-radius:999px;font-weight:700}
.member-columns{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.member-group{background:#fff;border:1px solid var(--line);border-radius:20px;padding:18px;box-shadow:var(--shadow)}
.member-group h3{margin-top:0}
.news-inline{display:grid;gap:10px}
.news-inline li{padding:10px 0;border-bottom:1px solid #e2e8f0}
.news-inline li:last-child{border-bottom:none}
@media (max-width:900px){
  .page-top,.footer-grid,.member-columns{grid-template-columns:1fr}
  .site-header__inner{align-items:flex-start;flex-direction:column}
  .nav{justify-content:flex-start}
}
@media (max-width:640px){
  .section{padding:56px 0}
  .page-top,.content-box{padding:22px}
  .hero{min-height:64vh}
}

.bio-list {
  margin: 0 0 1.2rem 1.2rem;
  padding: 0;
}

.bio-list li {
  margin: 0.4rem 0;
  padding: 0;
  border: none;
  background: none;
  border-radius: 0;
  list-style: disc;
}

.research-title {
  font-weight: 700;
  color: inherit;
}

.research-title {
  font-weight: 700;
  color: inherit;
}

.paper-list {
  margin-top: 8px;
  font-size: 0.9rem;
}

.paper-list ul {
  margin: 6px 0 0 1.2rem;
  padding: 0;
}

.paper-list li {
  background: none !important;
  border: none !important;
  box-shadow: none !important;
  border-radius: 0 !important;
  padding: 0 !important;
  margin: 4px 0 !important;
  list-style: disc;
}

.paper-list a {
  text-decoration: none;
}

.paper-list a:hover {
  text-decoration: underline;
}