:root {
  --ink:#102133;
  --navy:#0b1d31;
  --teal:#087f85;
  --line:#dbe3e8;
  --muted:#526574;
  --paper:#f6f9fa}
* {
  box-sizing:border-box}
html {
  scroll-behavior:smooth}
body {
  margin:0;
  color:var(--ink);
  background:#fff;
  font-family:Inter,"Noto Sans JP","Hiragino Kaku Gothic ProN",Meiryo,sans-serif;
  line-height:1.8;
  font-size:16px}
a {
  color:inherit}
a:hover {
  color:var(--teal)}
.wrap {
  width:min(1160px,calc(100% - 48px));
  margin:auto}
.top {
  background:var(--navy);
  color:#fff}
.nav {
  height:76px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  border-bottom:1px solid #ffffff30}
.brand {
  font-size:20px;
  font-weight:750;
  text-decoration:none;
  letter-spacing:.02em}
.brand small {
  display:block;
  font-size:11px;
  font-weight:500;
  letter-spacing:.16em;
  color:#82cbd0;
  line-height:1.3}
.nav nav {
  display:flex;
  gap:24px;
  flex-wrap:wrap}
.nav nav a {
  font-size:14px;
  text-decoration:none;
  color:#d6e4eb}
.aist-logo {
  display:block;
  background:#fff;
  padding:7px 12px;
  border-radius:3px;
  line-height:0;
  flex:none}
.aist-logo img {
  display:block;
  width:116px;
  height:auto}
.hero {
  padding:100px 0 102px;
  display:grid;
  grid-template-columns:1.25fr .75fr;
  gap:72px;
  align-items:end}
.eyebrow {
  color:#80d2d3;
  font-size:13px;
  letter-spacing:.2em;
  font-weight:700;
  text-transform:uppercase}
.hero h1 {
  font-size:clamp(38px,5.1vw,72px);
  line-height:1.18;
  letter-spacing:-.04em;
  margin:20px 0 26px;
  font-weight:750}
.hero h1 em {
  font-style:normal;
  color:#7ed0d2}
.hero p {
  font-size:18px;
  color:#d9e6ed;
  max-width:680px}
.hero .name {
  font-size:22px;
  font-weight:700;
  color:#fff;
  margin-top:38px}
.hero .name span {
  font-size:16px;
  font-weight:400;
  color:#9fb9c9;
  margin-left:12px}
.hero-media {
  display:grid;
  grid-template-columns:180px 1fr;
  gap:20px;
  align-items:end}
.portrait {
  width:100%;
  height:auto;
  aspect-ratio:475/484;
  object-fit:cover;
  object-position:center top;
  border-radius:2px;
  filter:saturate(.9)}
.hero-side {
  border-left:1px solid #416071;
  padding-left:20px;
  color:#c8d9e3}
.hero-side strong {
  display:block;
  color:#fff;
  font-size:17px;
  line-height:1.5}
.hero-side .index {
  color:#75c6ca;
  font-size:12px;
  letter-spacing:.14em;
  margin:22px 0 6px}
.section {
  padding:90px 0}
.section.alt {
  background:var(--paper)}
.heading {
  display:flex;
  gap:22px;
  align-items:baseline;
  margin-bottom:30px}
.num {
  color:var(--teal);
  font-size:13px;
  font-weight:800;
  letter-spacing:.1em}
.heading h2 {
  font-size:clamp(27px,3vw,40px);
  letter-spacing:-.04em;
  margin:0;
  line-height:1.3}
.intro {
  max-width:770px;
  color:var(--muted);
  margin:0 0 38px}
.grid {
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:16px}
.card {
  padding:32px;
  background:white;
  border:1px solid var(--line);
  min-height:206px;
  position:relative}
.card:before {
  content:"";
  position:absolute;
  top:0;
  left:0;
  height:3px;
  width:64px;
  background:var(--teal)}
.card .tag {
  font-size:12px;
  color:var(--teal);
  font-weight:800;
  letter-spacing:.12em}
.card h3 {
  font-size:22px;
  line-height:1.45;
  margin:13px 0}
.card p {
  color:var(--muted);
  margin:0;
  font-size:15px}
.feature {
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:55px;
  align-items:center;
  padding:42px 0;
  border-bottom:1px solid var(--line)}
.feature:first-of-type {
  border-top:1px solid var(--line)}
.feature h3 {
  font-size:24px;
  margin:0 0 12px;
  line-height:1.4}
.feature p {
  color:var(--muted);
  margin:0}
.feature .citation {
  font-size:14px;
  color:#38536a}
.feature a {
  color:var(--teal);
  font-weight:700;
  text-decoration-thickness:1px;
  text-underline-offset:4px}
.profile {
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:60px}
.profile p {
  color:var(--muted)}
.profile .label {
  font-size:12px;
  font-weight:800;
  color:var(--teal);
  letter-spacing:.12em}
.archive {
  border-top:1px solid var(--line);
  margin-top:24px}
.archive details {
  border-bottom:1px solid var(--line);
  padding:16px 0}
.archive summary {
  cursor:pointer;
  font-weight:700;
  font-size:18px;
  list-style:none}
.archive summary:after {
  content:"+";
  float:right;
  color:var(--teal)}
.archive details[open] summary:after {
  content:"−"}
.archive .content {
  padding:18px 12px;
  color:#34485a;
  overflow-wrap:anywhere}
.archive li {
  margin:8px 0}
.archive ol,.archive ul {
  padding-left:24px}
.archive a {
  color:#086e78}
.contact {
  background:var(--navy);
  color:#fff;
  padding:75px 0}
.contact h2 {
  font-size:36px;
  margin:0 0 18px}
.contact p {
  color:#bcd0da}
.contact a {
  color:#83d2d3}
.footer {
  background:#08192a;
  color:#94acb9;
  padding:22px 0;
  font-size:13px}
.footer .wrap {
  display:flex;
  justify-content:space-between;
  gap:20px}
 :focus-visible {
  outline:3px solid #43bfc3;
  outline-offset:4px}
@media(max-width:760px) {
  .wrap {
  width:min(100% - 32px,1160px)}
.nav {
  height:auto;
  padding:18px 0;
  align-items:flex-start;
  flex-direction:column;
  position:relative;
  padding-right:105px}
.nav nav {
  gap:16px}
.aist-logo {
  position:absolute;
  right:16px;
  top:15px}
.aist-logo img {
  width:88px}
.hero {
  grid-template-columns:1fr;
  gap:25px;
  padding:64px 0}
.hero-media {
  grid-template-columns:110px 1fr;
  gap:16px}
.hero-side {
  display:block}
.hero-side .index {
  margin:8px 0 3px}
.hero-side strong {
  font-size:15px}
.hero-side .index {
  margin:0}
.section {
  padding:62px 0}
.grid,.profile,.feature {
  grid-template-columns:1fr}
.feature {
  gap:10px}
.card {
  min-height:0}
.footer .wrap {
  display:block}
}
@media(prefers-reduced-motion:reduce) {
  html {
  scroll-behavior:auto}
}


.contact-form {
  display:grid;
  gap:16px;
  max-width:680px;
  margin-top:26px}
.contact-form label {
  display:grid;
  gap:6px;
  color:#eaf2f5;
  font-size:14px;
  font-weight:600}
.contact-form input,.contact-form textarea {
  width:100%;
  border:1px solid #5b7180;
  border-radius:3px;
  background:#fff;
  color:#102133;
  font:inherit;
  padding:12px 14px;
  line-height:1.5}
.contact-form textarea {
  min-height:160px;
  resize:vertical}
.contact-form button {
  justify-self:start;
  border:0;
  border-radius:3px;
  background:#76cdd0;
  color:#082133;
  font:inherit;
  font-weight:800;
  padding:12px 28px;
  cursor:pointer}
.contact-form button:disabled {
  opacity:.6;
  cursor:wait}
.form-status {
  min-height:1.5em}
.inbox {
  padding:40px 0}
.inbox article {
  padding:20px;
  border-bottom:1px solid var(--line);
  overflow-wrap:anywhere}
.inbox pre {
  white-space:pre-wrap;
  font:inherit}
.honeypot {
  position:absolute;
  left:-9999px}
.lang-link {
  color:#8dd6d9;
  text-decoration:none;
  font-size:14px;
  font-weight:800}
.nav {
  gap:18px}
.nav nav {
  margin-left:auto}
@media(max-width:760px) {
  .nav nav {
  margin-left:0}
.lang-link {
  position:absolute;
  right:16px;
  top:65px}
}

.contact-link {
  display:inline-block;
  margin-top:20px;
  padding:13px 24px;
  border-radius:3px;
  background:#76cdd0;
  color:#082133;
  font-weight:800;
  text-decoration:none}
.contact-link:hover {
  background:#a4e4e5;
  color:#082133}