:root {
  --aizu: #159c91;
  --aizu-dark: #08756f;
  --ink: #123a52;
  --muted: #587181;
  --sky: #eaf8fb;
  --paper: #ffffff;
  --orange: #ef8b3c;
  --violet: #8b5bc6;
  --green: #22a875;
  --line: #d6e7e8;
  --max: 1180px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: var(--paper); font-family: "Noto Sans JP", "Hiragino Kaku Gothic ProN", "Yu Gothic", sans-serif; line-height: 1.75; }
a { color: inherit; }
img { max-width: 100%; display: block; }
.skip { position: absolute; left: -9999px; }
.skip:focus { left: 1rem; top: 1rem; z-index: 99; background: #fff; padding: .6rem 1rem; }
.site-header { position: sticky; top: 0; z-index: 50; background: rgba(255,255,255,.93); backdrop-filter: blur(16px); border-bottom: 1px solid rgba(21,156,145,.15); }
.nav { max-width: var(--max); min-height: 82px; padding: .7rem 1.4rem; margin: auto; display: flex; align-items: center; justify-content: space-between; gap: 2rem; }
.brand { display: flex; align-items: center; gap: 1rem; text-decoration: none; min-width: 0; }
.brand img { width: 58px; height: 58px; object-fit: contain; }
.brand strong { display: block; letter-spacing: .04em; font-size: .98rem; }
.brand small { display: block; color: var(--aizu-dark); font-size: .7rem; letter-spacing: .07em; line-height: 1.35; }
.nav-links { display: flex; gap: 1.5rem; align-items: center; font-weight: 700; font-size: .92rem; }
.nav-links a { text-decoration: none; border-bottom: 2px solid transparent; }
.nav-links a:hover, .nav-links a[aria-current="page"] { color: var(--aizu-dark); border-color: var(--aizu); }
.uoa-link { padding: .5rem .9rem; border: 1px solid var(--aizu); border-radius: 999px; }
.hero { position: relative; min-height: 690px; overflow: hidden; background: linear-gradient(125deg,#f8ffff 0%,#eaf8fb 48%,#d6f2ee 100%); }
.hero-media { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; object-position: center; }
.hero::after { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg,rgba(255,255,255,.98) 0%,rgba(255,255,255,.9) 34%,rgba(255,255,255,.18) 66%,rgba(255,255,255,0) 100%); }
.hero-inner { position: relative; z-index: 2; max-width: var(--max); min-height: 690px; margin: auto; padding: 8rem 1.4rem 4rem; display: flex; align-items: center; }
.hero-copy { max-width: 650px; }
.eyebrow { color: var(--aizu-dark); font-weight: 800; letter-spacing: .09em; text-transform: uppercase; font-size: .82rem; }
h1 { margin: .8rem 0 1.2rem; font-size: clamp(2.65rem,5.4vw,5.1rem); line-height: 1.15; letter-spacing: -.035em; }
.hero-lead { font-size: clamp(1.15rem,2vw,1.45rem); font-weight: 700; max-width: 36rem; }
.philosophy { display: inline-block; margin-top: 1.4rem; color: var(--aizu-dark); border-top: 3px solid var(--aizu); padding-top: .65rem; font-family: Georgia,serif; font-style: italic; font-weight: 700; }
.section { max-width: var(--max); margin: auto; padding: 6rem 1.4rem; }
.section.tint { max-width: none; background: var(--sky); }
.section.tint > .inner { max-width: var(--max); margin: auto; }
.section-head { display: grid; grid-template-columns: 210px 1fr; gap: 2.5rem; margin-bottom: 2.5rem; }
.section-head .label { color: var(--aizu-dark); font-weight: 800; letter-spacing: .09em; font-size: .82rem; padding-top: .55rem; }
h2 { margin: 0; font-size: clamp(2rem,3.8vw,3.25rem); line-height: 1.25; letter-spacing: -.025em; }
.mission { font-size: clamp(1.15rem,2.25vw,1.7rem); line-height: 1.75; max-width: 920px; border-left: 5px solid var(--aizu); padding-left: 1.5rem; }
.domains { display: grid; grid-template-columns: repeat(3,1fr); gap: 1.25rem; }
.domain { background: #fff; border-top: 7px solid var(--tone); padding: 2rem; min-height: 290px; box-shadow: 0 18px 45px rgba(16,75,89,.08); }
.domain .domain-mark { width: 3rem; height: 3rem; display: grid; place-items: center; border-radius: 50%; color: #fff; background: var(--tone); font: 800 1.15rem/1 Georgia,serif; }
.domain h3 { font-size: 1.45rem; margin: 1rem 0 .55rem; }
.domain p { margin: 0; color: var(--muted); }
.academic-skills { margin-top: 1.25rem; padding: 1.7rem 2rem; display: grid; grid-template-columns: 1fr 1.2fr; gap: 2rem; align-items: center; background: #fff; border-left: 7px solid var(--aizu); box-shadow: 0 18px 45px rgba(16,75,89,.08); }
.academic-skills span,.rank { color: var(--aizu-dark); font-weight: 800; letter-spacing: .08em; font-size: .78rem; }
.academic-skills h3 { margin: .25rem 0 0; font-size: 1.35rem; }
.academic-skills p { margin: 0; color: var(--muted); }
.information-section { padding-top: 5rem; padding-bottom: 5rem; }
.information-list { border-top: 1px solid var(--line); }
.information-item { display: grid; grid-template-columns: 150px 1fr; gap: 1.5rem; padding: 1.2rem .2rem; border-bottom: 1px solid var(--line); align-items: baseline; }
.information-item time { color: var(--aizu-dark); font-weight: 800; font-variant-numeric: tabular-nums; }
.information-item a { display: flex; justify-content: space-between; gap: 1rem; text-decoration: none; font-weight: 700; }
.information-item a:hover { color: var(--aizu-dark); }
.information-title { min-width: 0; }
.information-url { display: block; margin-top: .2rem; color: var(--muted); font-size: .82rem; font-weight: 500; line-height: 1.45; overflow-wrap: anywhere; }
.information-more { margin: 1.4rem 0 0; text-align: right; font-weight: 800; }
.information-more a { color: var(--aizu-dark); text-decoration: none; }
.information-archive { padding-top: 4rem; }
.information-year { margin: 3rem 0 0; padding: .4rem 0; color: var(--aizu-dark); font-size: 1.5rem; border-bottom: 3px solid var(--aizu); }
.information-year:first-child { margin-top: 0; }
.data-fallback { grid-column: 1 / -1; padding: 1.5rem; background: #fff; margin: 0; }
.bridge { display: grid; grid-template-columns: 1.05fr .95fr; gap: 4rem; align-items: center; }
.bridge-list { display: grid; gap: 1rem; }
.bridge-item { display: grid; grid-template-columns: 52px 1fr; gap: 1rem; align-items: start; padding: 1.15rem 0; border-bottom: 1px solid var(--line); }
.bridge-item b { width: 44px; height: 44px; display: grid; place-items: center; border-radius: 50%; color: #fff; background: var(--aizu); }
.bridge-item h3 { margin: 0; font-size: 1.05rem; }
.bridge-item p { margin: .25rem 0 0; color: var(--muted); }
.statement { padding: 2.5rem; background: linear-gradient(145deg,var(--aizu-dark),#0a526c); color: #fff; border-radius: 0 54px 0 54px; }
.statement p { font-size: 1.45rem; line-height: 1.8; margin: 0; }
.quick-links { display: grid; grid-template-columns: repeat(3,1fr); gap: 1rem; }
.quick-link { text-decoration: none; padding: 1.6rem; border: 1px solid var(--line); display: flex; justify-content: space-between; align-items: center; font-weight: 800; transition: .2s ease; }
.quick-link:hover { border-color: var(--aizu); color: var(--aizu-dark); transform: translateY(-3px); }
.page-hero { background: linear-gradient(120deg,#e9f9f6,#e8f4fb); padding: 5.5rem 1.4rem 4rem; }
.page-hero > div { max-width: var(--max); margin: auto; }
.page-hero h1 { font-size: clamp(2.7rem,5vw,4.8rem); margin-bottom: .6rem; }
.page-hero p { max-width: 720px; color: var(--muted); font-size: 1.08rem; }
.people { display: grid; grid-template-columns: repeat(2,1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); }
.person { background: #fff; padding: 1.5rem; display: grid; grid-template-columns: 82px 1fr; gap: 1.2rem; }
.person .room { width: 72px; height: 72px; display: grid; place-items: center; border-radius: 50%; background: var(--sky); color: var(--aizu-dark); font-weight: 800; }
.person h2 { font-size: 1.35rem; margin-bottom: .2rem; }
.person .rank { margin-bottom: .15rem; }
.person .en { font-size: .78rem; letter-spacing: .06em; color: var(--muted); }
.person .field { color: var(--aizu-dark); font-weight: 800; margin-top: .7rem; }
.person a { color: var(--aizu-dark); }
.filter { display: flex; flex-wrap: wrap; gap: .55rem; margin: 0 0 2rem; }
.filter button { border: 1px solid var(--line); background: #fff; color: var(--ink); border-radius: 999px; padding: .55rem 1rem; font: inherit; cursor: pointer; }
.filter button.active { background: var(--aizu); color: #fff; border-color: var(--aizu); }
.reviews { display: grid; gap: 1rem; }
.review { border: 1px solid var(--line); padding: 1.4rem 1.5rem; display: grid; grid-template-columns: 150px 1fr auto; gap: 1.5rem; align-items: center; }
.review .issue { color: var(--aizu-dark); font-weight: 900; font-size: 1.1rem; }
.review p { margin: 0; color: var(--muted); }
.review a { text-decoration: none; color: #fff; background: var(--aizu-dark); padding: .55rem .9rem; border-radius: 4px; font-weight: 800; white-space: nowrap; }
.site-footer { background: #0b3f50; color: #d8edef; padding: 3.5rem 1.4rem; }
.footer-inner { max-width: var(--max); margin: auto; display: flex; justify-content: space-between; gap: 2rem; }
.site-footer strong { color: #fff; }
.site-footer a { color: #fff; }
@media (max-width: 820px) {
  .nav { min-height: 68px; }
  .brand img { width: 46px; height: 46px; }
  .brand small { display: none; }
  .nav-links a:not(.uoa-link) { display: none; }
  .hero,.hero-inner { min-height: 650px; }
  .hero::after { background: linear-gradient(180deg,rgba(255,255,255,.98),rgba(255,255,255,.8) 48%,rgba(255,255,255,.15)); }
  .hero-inner { padding-top: 5rem; align-items: flex-start; }
  .section-head,.bridge { grid-template-columns: 1fr; gap: 1rem; }
  .domains,.quick-links,.academic-skills,.people { grid-template-columns: 1fr; }
  .review { grid-template-columns: 1fr; gap: .6rem; }
  .information-item { grid-template-columns: 1fr; gap: .2rem; }
  .review a { justify-self: start; }
  .footer-inner { display: block; }
}
@media (prefers-reduced-motion: reduce) { * { scroll-behavior: auto !important; transition: none !important; } }