:root {
  --blue:#0093dd;
  --link:#0079b7;
  --ink:#14171c;
  --navy:#054e78;
  --muted:#68747e;
  --line:#dde3e7;
  --pale:#f7f7f7;
  --hero: url("../images/hero.svg");
  font-family:Arial,"PingFang SC","Microsoft YaHei",sans-serif;
  color:var(--ink);
  font-synthesis:none}
* {
  box-sizing:border-box}
html {
  scroll-behavior:smooth}
body {
  margin:0;
  font-size:17px;
  line-height:1.75;
  background:#fff}
a {
  color:var(--link);
  text-decoration:none}
a:hover {
  text-decoration:underline}
button,a,summary {
  -webkit-tap-highlight-color:transparent}
button {
  font:inherit}
a:focus-visible,button:focus-visible,summary:focus-visible {
  outline:3px solid var(--blue);
  outline-offset:5px}
h1,h2,h3,p {
  margin:0 0 20px}
h1,h2,h3 {
  font-weight:400;
  line-height:1.35}
h1 {
  font-size:clamp(2.1rem,4.1vw,3.6rem);
  letter-spacing:-.035em;
  margin-bottom:20px}
h2 {
  font-size:30px;
  letter-spacing:-.015em}
h3 {
  font-size:21px}
strong {
  font-weight:600}
small {
  font-size:13px}
img {
  max-width:100%;
  height:auto}
button,summary {
  cursor:pointer}
.container {
  width:calc(100% - 64px);
  max-width:1170px;
  margin-inline:auto}
.skip-link {
  position:fixed;
  top:-100px;
  left:20px;
  z-index:1000;
  background:#fff;
  padding:10px}
.skip-link:focus {
  top:10px}
.site-header {
  background:var(--pale);
  border-top:4px solid var(--blue)}
.brand-row {
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:30px;
  padding-block:22px}
.brand {
  display:flex;
  gap:17px;
  align-items:center;
  color:var(--ink);
  text-decoration:none!important}
.brand img {
  width:82px;
  height:82px;
  object-fit:contain}
.brand strong {
  font-size:34px;
  line-height:1.1;
  color:var(--blue);
  display:block;
  letter-spacing:.035em}
.brand span {
  font-size:18px;
  display:block;
  margin-top:7px}
.brand-right {
  text-align:right;
  color:#525c64;
  font-size:14px}
.brand-right a {
  display:inline-block;
  margin-top:6px}
.nav-container {
  border-top:1px solid var(--line)}
.main-nav {
  display:grid;
  grid-template-columns:repeat(7,minmax(0,1fr));
  padding:8px 0}
.main-nav a {
  color:#3e4953;
  line-height:1.35;
  padding:13px 8px;
  position:relative;
  text-decoration:none;
  border-bottom:2px solid transparent}
.main-nav a span {
  display:block;
  font-size:15px}
.main-nav a small {
  display:block;
  font-size:11px;
  letter-spacing:.015em;
  margin-top:5px;
  line-height:1.35}
.main-nav a.active {
  color:var(--link);
  border-color:var(--blue)}
.main-nav a:hover {
  color:var(--link);
  background:#eef4f7}
.menu-toggle {
  display:none;
  background:white;
  border:1px solid var(--line);
  padding:8px 14px}
.page {
  padding:44px 0 80px}
.page[hidden] {
  display:none}
.crumb {
  display:flex;
  gap:12px;
  font-size:14px;
  color:var(--muted);
  margin-bottom:38px}
.crumb a {
  color:var(--muted)}
.eyebrow {
  font-size:13px;
  letter-spacing:.11em;
  color:var(--link);
  font-weight:600;
  line-height:1.5;
  margin:0 0 15px}
.intro {
  font-size:21px;
  color:#56626e;
  margin-bottom:42px;
  max-width:850px}
.article-layout {
  display:grid;
  grid-template-columns:minmax(0,790px) minmax(0,280px);
  gap:80px;
  border-top:1px solid var(--line);
  padding-top:38px}
article>h2:not(:first-child) {
  margin-top:48px}
article>h2 {
  margin-bottom:22px}
article>p {
  line-height:1.85}
aside {
  align-self:start;
  background:var(--pale);
  border-top:3px solid var(--blue);
  padding:26px 22px}
aside h2 {
  font-size:25px;
  line-height:1.5}
aside>p:not(.side-label) {
  font-size:14px;
  color:var(--muted)}
.side-label {
  color:var(--link);
  font-size:15px;
  letter-spacing:.14em}
aside a {
  font-size:15px;
  border-top:1px solid var(--line);
  padding:14px 0;
  display:flex;
  justify-content:space-between;
  gap:8px}
aside a:last-child {
  padding-bottom:0}
.home {
  padding-top:42px}
.home-heading {
  margin:0 0 32px}
.home-heading .eyebrow {
  font-size:14px;
  letter-spacing:.07em}
.home-heading h1 {
  font-size:clamp(2.1rem,4.1vw,3.3rem);
  margin-bottom:12px;
  letter-spacing:0}
.home-sub {
  font-size:20px;
  color:#596571;
  margin-bottom:0}
.hero {
  min-height:450px;
  background-image:var(--hero);
  background-size:cover;
  background-position:center;
  position:relative;
  display:flex;
  align-items:center;
  color:#fff}
.hero-content {
  padding:48px 44px;
  max-width:68%}
.hero-kicker {
  font-size:14px;
  letter-spacing:.18em;
  color:#bdeaff;
  display:block;
  margin-bottom:22px}
.hero h2 {
  font-size:clamp(1.8rem,3vw,2.5rem);
  line-height:1.55;
  margin-bottom:20px}
.hero p {
  color:#d9e6f0;
  font-size:18px}
.button {
  display:inline-flex;
  align-items:center;
  gap:34px;
  background:var(--blue);
  color:white;
  padding:12px 24px;
  font-size:16px;
  margin-top:12px}
.button:hover {
  background:#007ab9;
  text-decoration:none}
.hero-location {
  position:absolute;
  right:24px;
  bottom:16px;
  font-size:12px;
  letter-spacing:.14em;
  color:#d5eaff}
.congress-strip {
  display:flex;
  gap:24px;
  justify-content:space-between;
  align-items:center;
  background:#f1f6f9;
  border-left:4px solid var(--blue);
  padding:25px 30px;
  margin:26px 0 60px}
.congress-strip .eyebrow {
  font-size:12px;
  margin-bottom:7px;
  display:block}
.congress-strip h2 {
  font-size:23px;
  margin:0}
.text-link {
  font-size:16px;
  display:inline-block}
.congress-strip .text-link {
  white-space:nowrap}
.home-about {
  display:grid;
  grid-template-columns:1fr 1.25fr;
  gap:70px;
  margin-bottom:36px}
.home-about h2 {
  font-size:31px;
  line-height:1.5}
.values {
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
  padding:25px 0;
  margin-bottom:54px}
.values>div {
  padding:0 28px;
  border-left:1px solid var(--line)}
.values>div:first-child {
  padding-left:0;
  border:0}
.values span {
  font-size:12px;
  letter-spacing:.1em;
  color:var(--link)}
.values h3 {
  margin:6px 0;
  font-size:24px}
.values p {
  font-size:16px;
  color:var(--muted);
  margin:0}
.section-heading {
  display:flex;
  gap:24px;
  align-items:center;
  justify-content:space-between;
  margin-bottom:25px}
.section-heading h2 {
  margin:0}
.section-heading .eyebrow {
  margin-bottom:8px}
.field-grid {
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:24px;
  margin-bottom:60px}
.field-grid a {
  color:var(--ink);
  text-decoration:none;
  border-top:2px solid var(--blue);
  padding:21px 0 18px;
  border-bottom:1px solid var(--line)}
.field-grid a:hover h3 {
  color:var(--link)}
.index {
  font-size:15px;
  color:var(--link);
  display:block;
  margin-bottom:18px;
  font-variant-numeric:tabular-nums}
.field-grid h3 {
  margin-bottom:5px}
.field-grid small {
  color:var(--muted);
  font-size:14px}
.home-bottom {
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:55px;
  border-top:1px solid var(--line);
  padding-top:35px}
.home-bottom h2 {
  font-size:26px}
.home-bottom p:not(.eyebrow) {
  color:#57626b}
.definition {
  margin:24px 0}
.definition>div {
  display:grid;
  grid-template-columns:155px 1fr;
  gap:20px;
  padding:20px 0;
  border-bottom:1px solid var(--line)}
dt {
  font-weight:600}
dd {
  margin:0;
  color:#52616e}
.check-list {
  padding:0;
  list-style:none}
.check-list li {
  position:relative;
  padding-left:23px;
  margin-bottom:16px}
.check-list li:before {
  content:'✓';
  color:var(--blue);
  position:absolute;
  left:0}
blockquote {
  margin:28px 0;
  padding:8px 0 8px 24px;
  border-left:3px solid var(--blue);
  font-size:25px;
  color:var(--navy)}
.notice {
  padding:16px 20px;
  background:var(--pale);
  border-left:3px solid #b9c7d1;
  color:#64727d;
  font-size:16px}
.muted {
  font-size:14px;
  color:#6b7580;
  line-height:1.7}
.line-item {
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:22px;
  border-bottom:1px solid var(--line);
  padding:18px 0}
.line-item h3 {
  font-size:19px;
  margin:0}
.line-item span {
  font-size:14px;
  color:var(--muted);
  text-align:right}
.line-list {
  margin-bottom:32px}
.governance {
  margin:28px 0}
.governance-top {
  background:var(--navy);
  color:white;
  padding:20px;
  text-align:center}
.governance small {
  display:block;
  font-size:12px;
  margin-top:5px}
.governance-roles {
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:1px;
  background:var(--line);
  border:1px solid var(--line);
  margin:18px 0}
.governance-roles>span {
  background:var(--pale);
  padding:18px 10px;
  text-align:center}
.governance-base {
  text-align:center;
  padding:15px;
  border:1px solid var(--line);
  font-size:15px}
.milestone {
  border-left:3px solid var(--blue);
  padding-left:24px}
.milestone strong {
  color:var(--link);
  font-size:22px}
.milestone p {
  margin-top:12px}
details {
  margin:28px 0;
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
  padding:18px 0}
summary {
  color:var(--link);
  font-size:16px}
details[open] summary {
  margin-bottom:20px}
.science-list {
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  column-gap:35px}
.science-list>div {
  display:flex;
  gap:22px;
  padding:24px 0;
  border-bottom:1px solid var(--line)}
.science-list .index {
  padding-top:3px}
.science-list h3 {
  margin:0 0 5px;
  font-size:21px}
.science-list p {
  color:var(--muted);
  font-size:14px;
  margin:0}
.event-banner {
  background:var(--navy);
  color:white;
  border-bottom:4px solid var(--blue);
  padding:36px}
.event-banner>span {
  letter-spacing:.15em;
  font-size:14px;
  color:#aadfff}
.event-banner h2 {
  font-size:34px;
  line-height:1.5;
  margin:14px 0}
.event-banner p {
  margin:0;
  color:#dceaf3}
.compact {
  margin:36px 0}
.compact>div {
  padding:0 18px}
.compact h3 {
  font-size:22px}
.compact p {
  font-size:15px}
.journal-name {
  font-family:Georgia,serif;
  font-size:40px;
  color:var(--navy)}
.journal-poster {
  display:block;
  width:100%;
  margin:20px 0}
.news-row {
  display:block;
  color:var(--ink);
  text-decoration:none!important;
  padding:28px 0;
  border-bottom:1px solid var(--line)}
.news-row:hover h3 {
  color:var(--link)}
.news-type {
  font-size:13px;
  color:var(--muted)}
.news-row h3 {
  margin:10px 0;
  font-size:24px}
.news-row p {
  color:#56636f;
  margin-bottom:12px}
.news-feed-panel {
  min-height:360px;
  display:flex;
  flex-direction:column;
  justify-content:flex-start}
.news-feed-panel--empty {
  justify-content:space-between}
.news-feed {
  display:flex;
  flex-direction:column;
  gap:0;
  margin-top:8px;
  flex:1}
.news-feed-loading {
  padding:20px 0}
.news-feed-item {
  display:flex;
  align-items:stretch;
  gap:14px;
  padding:16px 0;
  min-height:104px;
  border-bottom:1px solid var(--line);
  color:var(--ink);
  text-decoration:none!important}
.news-feed-item:hover .news-feed-title {
  color:var(--link)}
.news-feed-main {
  flex:1;
  min-width:0;
  display:flex;
  flex-direction:column;
  justify-content:space-between;
  gap:10px}
.news-feed-title {
  margin:0;
  font-size:clamp(16px,1.8vw,19px);
  font-weight:600;
  line-height:1.45;
  display:-webkit-box;
  -webkit-line-clamp:3;
  -webkit-box-orient:vertical;
  overflow:hidden}
.news-feed-meta {
  margin:0;
  font-size:12px;
  color:var(--muted);
  line-height:1.4}
.news-feed-thumb {
  flex:0 0 clamp(96px,28vw,128px);
  width:clamp(96px,28vw,128px);
  height:clamp(72px,21vw,96px);
  object-fit:cover;
  border-radius:8px;
  background:#eef2f6}
.news-feed-thumb--empty {
  display:block}
.news-feed-pager {
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:center;
  gap:12px 20px;
  margin-top:28px;
  padding-top:20px;
  border-top:1px solid var(--line)}
.news-feed-pager-info {
  font-size:14px;
  color:var(--muted)}
.news-feed-pager-btn {
  display:inline-block;
  padding:8px 18px;
  border:1px solid var(--line);
  border-radius:999px;
  font-size:14px;
  color:var(--link);
  text-decoration:none!important;
  background:#fff}
.news-feed-pager-btn:hover {
  border-color:var(--link);
  background:var(--pale)}
.news-feed-pager-btn.is-disabled {
  color:#aab4bd;
  border-color:#e3e8ed;
  background:#f7f9fb;
  cursor:not-allowed}
.news-article-meta--plain {
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px 16px;
  border-bottom:1px solid var(--line);
  padding-bottom:18px;
  margin-bottom:8px}
.news-article-byline {
  font-size:15px;
  font-weight:600;
  color:var(--ink)}
.news-article-meta--plain time {
  font-size:14px;
  color:var(--muted)}
.news-detail-body {
  margin-top:24px;
  line-height:1.8;
  color:var(--ink)}
.news-detail-body img {
  max-width:100%;
  height:auto;
  display:block;
  margin:16px auto}
#news.news-view-detail #title-news,
#news.news-view-detail #news-intro,
#news.news-view-detail #news-aside {
  display:none}
#news.news-view-detail #news-layout {
  grid-template-columns:minmax(0,1fr);
  max-width:760px;
  margin-inline:auto;
  gap:0;
  padding-top:24px}
#news.news-view-detail #news-main {
  min-width:0}
.news-article-back {
  display:inline-block;
  margin-bottom:20px;
  font-size:15px;
  color:var(--link);
  text-decoration:none!important}
.news-article-back:hover {
  text-decoration:underline!important}
.news-article-title {
  margin:0 0 20px;
  font-size:clamp(26px,4vw,34px);
  font-weight:700;
  line-height:1.35;
  color:var(--ink);
  letter-spacing:-0.02em}
.news-article-meta {
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding-bottom:20px;
  margin-bottom:8px;
  border-bottom:1px solid var(--line)}
.news-article-source {
  display:flex;
  align-items:center;
  gap:12px;
  min-width:0}
.news-article-avatar {
  flex:0 0 40px;
  width:40px;
  height:40px;
  border-radius:50%;
  background:var(--navy);
  color:#fff;
  font-size:18px;
  font-weight:600;
  display:flex;
  align-items:center;
  justify-content:center}
.news-article-source-text {
  display:flex;
  flex-direction:column;
  gap:4px;
  min-width:0}
.news-article-source-text strong {
  font-size:15px;
  color:var(--ink)}
.news-article-source-text time {
  font-size:13px;
  color:var(--muted)}
.news-article-lead {
  margin:16px 0 8px;
  font-size:17px;
  line-height:1.65;
  color:#56636f}
.news-article-cover {
  margin:20px 0 8px}
.news-article-cover img {
  width:100%;
  border-radius:8px;
  display:block}
#news.news-view-detail .news-detail-body {
  margin-top:28px;
  font-size:17px}
#news.news-view-detail .news-detail-body p {
  margin:0 0 1em}
.contact-email {
  font-size:clamp(16px,2vw,23px);
  overflow-wrap:anywhere}
.site-footer {
  background:var(--ink);
  color:#fff;
  padding:43px 0 25px}
.footer-top {
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:55px}
.footer-brand {
  font-size:29px;
  letter-spacing:.05em;
  margin-bottom:10px}
.footer-title {
  font-size:17px}
.footer-en {
  font-size:12px;
  letter-spacing:.04em;
  color:#aeb9c3;
  max-width:350px;
  line-height:1.7}
.footer-links {
  display:flex;
  flex-wrap:wrap;
  gap:17px 30px;
  align-content:start;
  padding-top:10px}
.footer-links a {
  color:#fff;
  font-size:15px}
.footer-bottom {
  border-top:1px solid #39414a;
  padding-top:22px;
  margin-top:25px;
  display:flex;
  justify-content:space-between;
  gap:25px;
  font-size:12px;
  color:#abb7c2}
.footer-bottom p {
  margin:0}
.footer-bottom a {
  color:#d4eaff}
.back-top {
  white-space:nowrap}
.no-js {
  background:#eef6fa;
  padding:12px;
  font-size:14px}
.home-heading [tabindex]:focus,[tabindex='-1']:focus {
  outline:none}
body:not(.enhanced) .page:not(.home) {
  border-top:1px solid var(--line)}

@media(min-width:960px) {
aside {
  position:sticky;
  top:24px}
}
@media(max-width:1000px) {
.article-layout {
  gap:36px;
  grid-template-columns:minmax(0,1fr) 240px}
.main-nav {
  grid-template-columns:repeat(5,minmax(0,1fr))}
.brand-right {
  max-width:260px}
.home-about {
  gap:35px}
.hero-content {
  max-width:75%}
}
@media(max-width:760px) {
body {
  font-size:16px}
.container {
  width:calc(100% - 36px)}
.brand-row {
  padding-block:17px;
  gap:12px}
.brand img {
  width:61px;
  height:61px}
.brand {
  gap:12px}
.brand strong {
  font-size:27px}
.brand span {
  font-size:14px}
.brand-right {
  display:none}
.enhanced .menu-toggle {
  display:block;
  font-size:14px}
.main-nav {
  grid-template-columns:repeat(2,minmax(0,1fr));
  padding:10px 0}
.enhanced .main-nav:not(.open) {
  display:none}
.main-nav a {
  padding:12px}
.main-nav a small {
  font-size:11px}
.page {
  padding:30px 0 50px}
.crumb {
  margin-bottom:24px}
.eyebrow {
  font-size:12px}
.intro {
  font-size:18px;
  margin-bottom:28px}
.article-layout {
  grid-template-columns:1fr;
  gap:38px;
  padding-top:28px}
aside {
  position:static;
  padding:24px}
aside h2 br {
  display:none}
aside h2 {
  font-size:23px}
.home-heading {
  margin-bottom:24px}
.home-heading .eyebrow {
  font-size:11px;
  line-height:1.8}
.home-heading h1 {
  font-size:31px;
  line-height:1.45}
.home-sub {
  font-size:17px}
.hero {
  min-height:390px;
  background-position:62% center}
.hero:before {
  content:'';
  position:absolute;
  inset:0;
  background:linear-gradient(90deg,rgba(0,17,39,.8),rgba(0,20,40,.22))}
.hero-content {
  position:relative;
  padding:30px 23px;
  max-width:100%}
.hero h2 {
  font-size:26px}
.hero p {
  font-size:15px}
.congress-strip {
  align-items:start;
  flex-direction:column;
  padding:20px 23px;
  gap:15px;
  margin-bottom:40px}
.congress-strip h2 {
  font-size:21px}
.home-about {
  grid-template-columns:1fr;
  gap:4px}
.home-about h2 {
  font-size:27px}
.home-about h2 br {
  display:none}
.values {
  margin-bottom:38px}
.values>div {
  padding:0 14px}
.values h3 {
  font-size:23px}
.values span {
  font-size:10px;
  letter-spacing:.02em}
.values p {
  font-size:14px}
.section-heading {
  align-items:start;
  flex-direction:column;
  gap:12px}
.section-heading h2 {
  font-size:27px}
.field-grid {
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:18px;
  margin-bottom:40px}
.field-grid h3 {
  font-size:20px}
.field-grid small {
  font-size:13px}
.home-bottom {
  grid-template-columns:1fr;
  gap:32px;
  padding-top:30px}
.home-bottom h2 {
  font-size:26px}
h2 {
  font-size:26px}
h3 {
  font-size:20px}
.definition>div {
  grid-template-columns:1fr;
  gap:7px;
  padding:17px 0}
.line-item {
  align-items:flex-start;
  flex-direction:column;
  gap:5px}
.line-item span {
  text-align:left}
.governance-roles {
  grid-template-columns:repeat(2,minmax(0,1fr))}
.science-list {
  column-gap:24px}
.science-list>div {
  gap:10px}
.science-list h3 {
  font-size:19px}
.event-banner {
  padding:25px}
.event-banner h2 {
  font-size:27px}
.compact {
  grid-template-columns:1fr;
  gap:19px}
.compact>div {
  border:0;
  padding:0}
.journal-name {
  font-size:33px}
.footer-top {
  grid-template-columns:1fr;
  gap:18px}
.footer-links {
  gap:15px 25px}
.footer-bottom {
  flex-direction:column;
  gap:12px}
.footer-bottom p {
  font-size:12px}
}
@media(prefers-reduced-motion:reduce) {
html {
  scroll-behavior:auto}
}
@media print {
.site-header,.site-footer,aside,.crumb,.menu-toggle {
  display:none!important}
.container {
  width:100%;
  max-width:none}
.page {
  padding:0}
.article-layout {
  display:block}
.hero,.event-banner {
  -webkit-print-color-adjust:exact;
  print-color-adjust:exact}
.hero {
  min-height:300px}
.home-about,.home-bottom {
  gap:25px}
a {
  color:inherit}
details {
  break-inside:avoid}
h2,h3 {
  break-after:avoid}
}


/* Single-language interface and persistent language control. */
.header-actions {
  display:flex;
  flex-direction:column;
  align-items:flex-end;
  gap:10px;
  flex-shrink:0}

.language-control {
  display:none;
  align-items:center;
  gap:10px;
  color:#53616b;
  font-size:14px;
  line-height:1.4}

.enhanced .language-control {
  display:flex}

.language-control select {
  font:inherit;
  font-size:14px;
  min-height:42px;
  min-width:135px;
  padding:9px 30px 9px 14px;
  background:#fff;
  border:1px solid #c6d3dd;
  border-radius:3px;
  color:#054e78;
  cursor:pointer;
  max-width:100%}

.language-control select:hover {
  border-color:#0093dd}

.language-control select:focus-visible {
  outline:3px solid #0093dd;
  outline-offset:3px}

.brand {
  min-width:0}
.brand>div {
  min-width:0}
.brand img {
  flex-shrink:0}

.main-nav a {
  display:flex;
  align-items:center;
  min-height:48px}

.main-nav a span {
  font-size:16px}

html:not([lang="en"]) .eyebrow {
  letter-spacing:.06em;
  font-size:14px}

html:not([lang="en"]) .home-heading .eyebrow {
  font-size:14px}

html:not([lang="en"]) .journal-name {
  font-family:inherit}

html[lang="en"] .brand span {
  max-width:430px;
  font-size:15px;
  line-height:1.45}

html[lang="en"] .main-nav {
  grid-template-columns:repeat(5,minmax(0,1fr))}

html[lang="en"] .main-nav a span {
  font-size:14px}

html[lang="en"] .home-heading h1 {
  font-size:clamp(2rem,3.4vw,3.1rem);
  max-width:1050px;
  line-height:1.3;
  letter-spacing:-.02em}

html[lang="en"] .hero h2 {
  font-size:clamp(1.6rem,2.7vw,2.25rem);
  line-height:1.45}

html[lang="en"] .hero p {
  font-size:16px}

html[lang="en"] .hero-content {
  max-width:68%}

html[lang="en"] .congress-strip h2 {
  font-size:23px}

html[lang="en"] .line-item h3 {
  font-size:19px}

html[lang="en"] aside h2 {
  font-size:25px}

html[lang="en"] .field-grid h3 {
  font-size:20px}

html[lang="en"] .definition>div {
  grid-template-columns:175px minmax(0,1fr)}

@media(max-width:1000px) {
.header-actions {
  max-width:290px}
html[lang="en"] .brand span {
  max-width:280px;
  font-size:14px}
.brand-right {
  max-width:290px}
}

@media(max-width:760px) {

 .brand-row {
  position:relative;
  display:grid;
  grid-template-columns:minmax(0,1fr) 130px;
  gap:14px 12px;
  align-items:start}

 .header-actions {
  grid-column:2;
  grid-row:1;
  max-width:none;
  width:130px;
  align-items:flex-end}

 .language-control {
  width:100%;
  gap:0}
.language-control>span {
  position:absolute;
  width:1px;
  height:1px;
  padding:0;
  margin:-1px;
  overflow:hidden;
  clip-path:inset(50%);
  white-space:nowrap}

 .language-control select {
  width:130px;
  min-width:0;
  min-height:42px;
  padding-left:10px;
  padding-right:22px}

 .brand {
  grid-column:1;
  grid-row:1;
  gap:9px;
  align-items:flex-start}

 .brand img {
  width:46px;
  height:46px}
.brand strong {
  font-size:25px}
.brand span {
  font-size:13px;
  line-height:1.55;
  max-width:180px;
  margin-top:6px}

 html[lang="en"] .brand span {
  font-size:12px;
  line-height:1.4;
  max-width:180px}

 .enhanced .menu-toggle {
  grid-column:2;
  justify-self:end;
  padding:5px 12px;
  min-height:38px;
  margin-top:-2px}

 html[lang="en"] .main-nav {
  grid-template-columns:repeat(2,minmax(0,1fr))}

 html[lang="en"] .main-nav a span {
  font-size:14px}
.main-nav a span {
  font-size:16px}

 html[lang="en"] .home-heading h1 {
  font-size:29px;
  line-height:1.35}

 html[lang="en"] .hero-content {
  max-width:100%}

 html[lang="en"] .hero h2 {
  font-size:26px}

 html[lang="en"] .home-about h2 {
  font-size:27px}

 html[lang="en"] .values {
  grid-template-columns:1fr;
  gap:20px}

 html[lang="en"] .values>div {
  padding:0;
  border:0}

 html[lang="en"] .definition>div {
  grid-template-columns:1fr}

 html[lang="en"] .science-list {
  grid-template-columns:1fr}

 html[lang="en"] .event-banner h2 {
  font-size:26px}

 html[lang="en"] .congress-strip h2 {
  font-size:23px}

}

@media(max-width:360px) {
.container {
  width:calc(100% - 28px)}
.brand-row {
  grid-template-columns:minmax(0,1fr) 120px;
  gap:12px 8px}
.header-actions,.language-control select {
  width:120px}
.brand img {
  width:36px;
  height:36px}
.brand strong {
  font-size:23px}
}

.header-tools {
  display:flex;
  align-items:center;
  gap:10px}

.register-button {
  min-height:42px;
  padding:9px 20px;
  background:var(--blue);
  color:#fff;
  border:1px solid var(--blue);
  border-radius:3px;
  font-size:14px;
  line-height:1.4;
  white-space:nowrap}

.register-button:hover {
  background:#007ab9;
  border-color:#007ab9}

.modal {
  position:fixed;
  inset:0;
  z-index:1100;
  display:flex;
  align-items:flex-start;
  justify-content:center;
  padding:40px 20px;
  overflow-y:auto}

.modal[hidden] {
  display:none}

.modal-backdrop {
  position:fixed;
  inset:0;
  background:rgba(9,30,45,.55)}

.modal-panel {
  position:relative;
  width:100%;
  max-width:520px;
  background:#fff;
  border-top:4px solid var(--blue);
  box-shadow:0 18px 50px rgba(9,30,45,.28);
  padding:32px 34px 28px}

.modal-close {
  position:absolute;
  top:10px;
  right:12px;
  width:38px;
  height:38px;
  background:none;
  border:0;
  font-size:26px;
  line-height:1;
  color:#68747e}

.modal-close:hover {
  color:var(--ink)}

.modal-panel h2 {
  font-size:27px;
  margin-bottom:8px}

.modal-intro {
  color:var(--muted);
  font-size:15px;
  margin-bottom:22px}

.modal-tabs {
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:0;
  margin-bottom:24px;
  border-bottom:1px solid var(--line)}

.modal-tabs button {
  background:none;
  border:0;
  border-bottom:3px solid transparent;
  padding:11px 8px;
  font-size:16px;
  color:#68747e}

.modal-tabs button.active {
  color:var(--navy);
  border-bottom-color:var(--blue)}

.field {
  margin-bottom:16px}

.field[hidden] {
  display:none}

.field label {
  display:block;
  margin-bottom:6px;
  font-size:14px;
  color:#53616b}

.field input,.phone-row select {
  font:inherit;
  font-size:16px;
  width:100%;
  min-height:46px;
  padding:10px 13px;
  background:#fff;
  border:1px solid #c6d3dd;
  border-radius:3px;
  color:var(--ink)}

.field input:focus-visible,.phone-row select:focus-visible {
  outline:3px solid var(--blue);
  outline-offset:2px}

.field input::placeholder {
  color:#9aa6b0}

.phone-row {
  display:grid;
  grid-template-columns:170px minmax(0,1fr);
  gap:10px}

.phone-row select {
  cursor:pointer}

.code-row {
  display:grid;
  grid-template-columns:minmax(0,1fr) 140px;
  gap:10px}

.code-button {
  min-height:46px;
  padding:10px 12px;
  background:#fff;
  border:1px solid var(--blue);
  border-radius:3px;
  color:var(--link);
  font-size:14px;
  white-space:nowrap}

.code-button:hover:not(:disabled) {
  background:#f0f8fd}

.code-button:disabled {
  border-color:var(--line);
  color:#9aa6b0;
  cursor:default}

.password-row {
  position:relative}

.password-row input {
  padding-right:46px}

.password-toggle {
  position:absolute;
  right:1px;
  bottom:0;
  width:44px;
  height:46px;
  border:0;
  background:transparent;
  color:#6b7780;
  display:flex;
  align-items:center;
  justify-content:center}

.password-toggle:hover,
.password-toggle:focus-visible {
  color:var(--navy)}

.password-toggle svg {
  width:22px;
  height:22px;
  fill:none;
  stroke:currentColor;
  stroke-width:1.8;
  stroke-linecap:round;
  stroke-linejoin:round}

.password-toggle[aria-pressed="true"] {
  color:var(--blue)}

.agree-row {
  display:flex;
  align-items:flex-start;
  gap:10px;
  margin:20px 0;
  font-size:14px;
  line-height:1.6;
  color:#53616b;
  cursor:pointer}

.agree-row input {
  margin:3px 0 0;
  width:17px;
  height:17px;
  flex-shrink:0}

.form-message {
  margin:0 0 16px;
  padding:11px 14px;
  font-size:14px;
  line-height:1.6;
  border-left:3px solid #b9c7d1;
  background:var(--pale);
  color:#64727d}

.form-message[hidden] {
  display:none}

.form-message.error {
  border-left-color:#c0392b;
  background:#fdf3f2;
  color:#a5342a}

.form-message.ok {
  border-left-color:#2e8b57;
  background:#f1f9f4;
  color:#256b45}

.submit-button {
  width:100%;
  min-height:50px;
  background:var(--blue);
  border:0;
  color:#fff;
  font-size:17px}

.submit-button:hover {
  background:#007ab9}

.modal-foot {
  margin:16px 0 0;
  font-size:13px;
  line-height:1.7;
  color:#6b7580}

@media(max-width:760px) {
.header-tools {
  flex-direction:column;
  align-items:flex-end;
  gap:8px;
  width:100%}
.register-button {
  width:130px;
  padding-inline:10px}
.modal {
  padding:0}
.modal-panel {
  max-width:none;
  min-height:100%;
  padding:28px 20px 24px}
.phone-row,.code-row {
  grid-template-columns:1fr}
}

@media(max-width:360px) {
.register-button {
  width:120px}
}

@media print {
.header-actions {
  display:none!important}
.modal {
  display:none!important}
}